Welding positioning structure

Abstract

The utility model relates to a welding positioning structure, and relates to the technical field of ultrasonic welding. The welding positioning structure comprises a first part to be welded, a second part to be welded, a plurality of guide rings and a plurality of guide sleeve columns, the first to-be-welded part is provided with a first welding part; the second to-be-welded part is provided with a second welding part matched with the first welding part; the multiple guide rings are arranged on the first to-be-welded part and are arranged at intervals in the circumferential direction of the first welding part; and a plurality of guide sleeve columns are arranged on the second welding part and arranged around the second welding part in the circumferential direction at intervals, the guide sleeve columns correspond to the guide rings one to one, and guide grooves matched with the corresponding guide rings are formed in the guide sleeve columns. According to the technical scheme disclosed by the utility model, influence factors caused by vibration during operation of ultrasonic welding equipment can be effectively eliminated, accurate positioning correction is realized, and shrinkage marks caused by local over-thickness of an injection molding part are avoided.

Description

Technical Field

[0001] This utility model relates to the field of ultrasonic welding technology, and in particular to a welding positioning structure. Background Technology

[0002] Ultrasonic welding utilizes high-frequency vibration waves transmitted to the surfaces of two parts to be welded. Under pressure, the surfaces of the two parts rub against each other, forming a fusion between molecular layers. During ultrasonic welding, due to factors such as the melting of the plastic at the welding contact surface and the zigzag vibration, misalignment or displacement may occur between the two parts after welding, resulting in whitening of the weld line edges. In some cases, solid guide pillars are used within the two parts to address this misalignment. However, if the solid guide pillars are too thin, they cannot provide proper guidance and correction, leading to misalignment in the appearance of the welded product. Conversely, if the solid guide pillars are too thick, shrinkage marks may appear at the base of the solid guide pillar due to the excessive thickness of the injection-molded part. Since the base is typically the surface of the product, this results in quality issues related to injection shrinkage on the welded product's surface, increasing the product defect rate. Utility Model Content

[0003] This utility model provides a welding positioning structure that can effectively eliminate the influence of vibration during the operation of ultrasonic welding equipment, achieve precise positioning and correction, and avoid shrinkage marks caused by excessive local thickness of injection molded parts.

[0004] In a first aspect, embodiments of this utility model provide a welding positioning structure, comprising:

[0005] The first part to be welded has a first welding section;

[0006] The second part to be welded is provided with a second welding part that mates with the first welding part;

[0007] Multiple guide rings are disposed on the first workpiece to be welded and arranged circumferentially around the first welding portion; and

[0008] Multiple guide sleeves are disposed on the second workpiece to be welded and arranged circumferentially around the second welding part. Each of the multiple guide sleeves corresponds to a multiple of the guide rings. Each guide sleeve is provided with a guide groove that cooperates with the corresponding guide ring.

[0009] In one embodiment, the guide sleeve includes:

[0010] An outer guide sleeve, one end of which is disposed on the second workpiece to be welded; and

[0011] An inner guide sleeve is provided at one end on the second workpiece to be welded and located inside the outer guide sleeve, and the guide groove is located between the outer guide sleeve and the inner guide sleeve.

[0012] In one embodiment, a plurality of outer braces are provided on the inner wall of the outer guide sleeve, and the plurality of outer braces are arranged circumferentially around the outer guide sleeve at intervals.

[0013] The outer wall of the inner guide sleeve is provided with a plurality of inner ribs, which are arranged circumferentially around the inner guide sleeve at intervals, and the plurality of inner ribs correspond one-to-one with the plurality of outer ribs; wherein, the inner ribs and the corresponding outer ribs are spaced apart in the radial direction.

[0014] In one embodiment, the width of the outer brace and the inner brace in the radial direction gradually increases along the axial direction, and the width of the end of the outer brace and the inner brace near the first weldment in the radial direction is smaller than the width of the end of the outer brace and the inner brace away from the first weldment in the radial direction.

[0015] In one embodiment, the outer brace includes an outer inclined surface located on the side of the outer brace away from the outer guide sleeve; the inner brace includes an inner inclined surface located on the side of the inner brace away from the inner guide sleeve.

[0016] The angle between the outer inclined surface and the axial direction is 2°-5°, and the angle between the inner inclined surface and the axial direction is 2°-5°.

[0017] In one embodiment, both the outer and inner branches are pyramidal in shape.

[0018] In one embodiment, the edge of the guide ring at the end away from the first workpiece to be welded is rounded; the edge of the guide sleeve at the end away from the second workpiece to be welded is also rounded.

[0019] In one embodiment, the first welding portion is located on the end face of the first workpiece to be welded, and the second welding portion is located on the end face of the second workpiece to be welded;

[0020] Wherein, the first welding part is a welding rod, and the second welding part is a welding groove; the end of the first welding part away from the first workpiece to be welded is the first welding end, and the end of the guide ring away from the first workpiece to be welded is the first guide end; the distance between the first guide end and the end face of the first workpiece to be welded is greater than the distance between the first welding end and the end face of the first workpiece to be welded; wherein, the first guide end and the end face of the first workpiece to be welded have a preset distance.

[0021] In one embodiment, the first welding portion is located on the end face of the first workpiece to be welded, and the second welding portion is located on the end face of the second workpiece to be welded;

[0022] Wherein, the first welding part is a welding groove, and the second welding part is a welding rod; the end of the second welding part away from the second workpiece to be welded is the second welding end, and the end of the guide sleeve away from the second workpiece to be welded is the second guide end, and the distance between the second guide end and the end face of the second workpiece to be welded is greater than the distance between the second welding end and the end face of the second workpiece to be welded; wherein, the second guide end and the end face of the second workpiece to be welded have a preset distance.

[0023] In one embodiment, the preset distance is greater than or equal to 3 mm.

[0024] Compared with the prior art, the advantages of this utility model embodiment are as follows: by setting multiple guide rings to cooperate with the guide grooves, the guide rings are inserted into the guide grooves to play a positioning and correction role, so that the first welding part can be aligned and fitted with the second welding part. This effectively eliminates the influence of vibration during the operation of the ultrasonic welding equipment, achieves precise positioning and correction, prevents the first welding part and the second welding part from being misaligned, and avoids quality problems such as appearance misalignment and whitening of the weld line edges after the first and second parts to be welded are welded. By setting the annular guide ring, it avoids quality problems such as injection molding shrinkage on the appearance surface of the welded product. Compared with the existing solid guide pillars, the use of guide rings effectively reduces the thickness of the root while ensuring the reliability of positioning and guidance, and avoids the shrinkage marks caused by excessive local thickness of the injection molded part. Therefore, the welding positioning structure provided by this utility model effectively realizes the simplified positioning and fit of the first and second parts to be welded, which can reduce the difficulty of adjusting the ultrasonic welding equipment, reduce the injection molding debugging accuracy, shorten the production changeover cycle, and reduce the product defect rate. Attached Figure Description

[0025] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0026] Figure 1 This is a cross-sectional view of the welding positioning structure provided in one embodiment of the present invention in the main viewing direction;

[0027] Figure 2 yes Figure 1 Enlarged view of section A;

[0028] Figure 3 yes Figure 1 A bottom view of the first workpiece to be welded provided in the embodiment;

[0029] Figure 4 yes Figure 3 A cross-sectional view along the AA direction;

[0030] Figure 5 yes Figure 1 A top view of the second workpiece to be welded provided in the embodiment;

[0031] Figure 6 yes Figure 5 Enlarged view of section B;

[0032] Figure 7 yes Figure 5 A cross-sectional view along the BB direction;

[0033] Figure 8 yes Figure 7 Enlarged view of section C.

[0034] Figure label:

[0035] 10. The first component to be welded;

[0036] 20. The second component to be welded;

[0037] 30. Guide ring;

[0038] 40. Guide sleeve post; 410. Guide groove; 420. Outer guide sleeve; 430. Inner guide sleeve; 440. Outer bramble; 450. Inner bramble. Detailed Implementation

[0039] The present invention will be further described below with reference to the accompanying drawings.

[0040] Ultrasonic welding utilizes high-frequency vibration waves transmitted to the surfaces of two parts to be welded. This causes the parts to vibrate and generate heat through friction. Under pressure, the parts are pressed down, ultimately leading to surface friction and fusion between molecular layers. During ultrasonic welding, the vibration of the parts can be viewed as a rapid, Z-shaped, high-frequency descent. Due to the melting of the plastic at the welding contact surface and the Z-shaped vibration, misalignment or displacement of the two parts, and whitening of the weld line edges, can occur after welding. In some cases, solid guide pillars are used within the two parts to address this misalignment. However, if the guide pillars are too thin, the welding process becomes too soft and ineffective, resulting in misalignment of the welded product. Conversely, if the guide pillars are too thick, shrinkage marks can occur at the base of the guide pillar due to excessive thickness of the injection-molded part. Since the base is typically the surface of the product, this shrinkage can lead to quality issues with the welded product's appearance, increasing the defect rate.

[0041] Example 1

[0042] like Figure 1 , Figure 2As shown, in order to solve the above-mentioned technical problems, this utility model provides a welding positioning structure, including a first weldable part 10, a second weldable part 20, a plurality of guide rings 30, and a plurality of guide sleeves 40; the first weldable part 10 is provided with a first welding part; the second weldable part 20 is provided with a second welding part that cooperates with the first welding part; the plurality of guide rings 30 are disposed on the first weldable part 10 and are arranged circumferentially around the first welding part; the plurality of guide sleeves 40 are disposed on the second weldable part 20 and are arranged circumferentially around the second welding part, and the plurality of guide sleeves 40 correspond one-to-one with the plurality of guide rings 30, and the guide sleeves 40 are provided with guide grooves 410 that cooperate with the corresponding guide rings 30.

[0043] As can be seen from the above, by setting multiple guide rings 30 to cooperate with the guide grooves 410, the guide rings 30 inserted into the guide grooves 410 play a positioning and correction role, enabling the first welding part to be aligned and fitted with the second welding part. This effectively eliminates the influence of vibration during the operation of the ultrasonic welding equipment, achieves precise positioning and correction, prevents the first welding part and the second welding part from being misaligned, and avoids quality problems such as misalignment of appearance and whitening of the welding line edge after the first welding part 10 and the second welding part 20 are welded. By setting the annular guide rings 30, the appearance of the welded product is prevented from quality problems such as injection molding shrinkage. Compared with the existing solid guide pillars, the use of guide rings 30 effectively reduces the thickness of the root while ensuring the reliability of positioning and guidance, and avoids the shrinkage mark caused by excessive local thickness of the injection molded part. Therefore, the welding positioning structure provided by this utility model effectively realizes the simplified positioning and fit of the first welding part and the second welding part 20, which can reduce the difficulty of adjusting the ultrasonic welding equipment, reduce the injection molding debugging accuracy, shorten the production changeover cycle, and reduce the product defect rate.

[0044] It should be noted that the first part to be welded 10 and the second part to be welded 20 are coaxially arranged; one end of the first part to be welded 10 is provided with a first groove and a first welding part; one end of the second part to be welded 20 is provided with a second groove and a second welding part; wherein, the guide ring 30 is located in the first groove and the guide sleeve 40 is located in the second groove; in addition, the first welding part and the second welding part are both annular, the first welding part surrounds the first groove and the second welding part surrounds the second groove.

[0045] It should also be noted that the guide ring 30 and the first part to be welded 10 can be connected by injection molding; the guide sleeve 40 and the second part to be welded 20 can be connected by injection molding.

[0046] It should also be noted that the number of guide rings 30 and guide sleeves 40 is set according to actual needs, for example, such as Figure 3 , Figure 5As shown, the number of guide rings 30 and guide sleeves 40 can be three. The three guide rings 30 are arranged at equal intervals around the first welding part, and the three guide sleeves 40 are arranged at equal intervals around the second welding part.

[0047] It should also be noted that the first welding part and the second welding part are the positions where the first workpiece 10 and the second workpiece 20 are ultrasonically welded, i.e., the welding surfaces; the first welding part and the second welding part are entered into the fusion state by the transmission of ultrasonic energy.

[0048] Example 2

[0049] like Figure 1 , Figure 2 As shown, the welding positioning structure includes a first weldable part 10, a second weldable part 20, multiple guide rings 30, and multiple guide sleeves 40; the first weldable part 10 is provided with a first welding part; the second weldable part 20 is provided with a second welding part that cooperates with the first welding part; multiple guide rings 30 are provided on the first weldable part 10 and are arranged circumferentially around the first welding part at intervals; multiple guide sleeves 40 are provided on the second weldable part 20 and are arranged circumferentially around the second welding part at intervals, and the multiple guide sleeves 40 correspond one-to-one with the multiple guide rings 30, and the guide sleeves 40 are provided with guide grooves 410 that cooperate with the corresponding guide rings 30.

[0050] As can be seen from the above, by setting multiple guide rings 30 to cooperate with the guide grooves 410, the guide rings 30 inserted into the guide grooves 410 play a positioning and correction role, enabling the first welding part to be aligned and fitted with the second welding part. This effectively eliminates the influence of vibration during the operation of the ultrasonic welding equipment, achieves precise positioning and correction, prevents the first welding part and the second welding part from being misaligned, and avoids quality problems such as misalignment of appearance and whitening of the welding line edge after the first welding part 10 and the second welding part 20 are welded. By setting the annular guide rings 30, the appearance of the welded product is prevented from quality problems such as injection molding shrinkage. Compared with the existing solid guide pillars, the use of guide rings 30 effectively reduces the thickness of the root while ensuring the reliability of positioning and guidance, and avoids the shrinkage mark caused by excessive local thickness of the injection molded part. Therefore, the welding positioning structure provided by this utility model effectively realizes the simplified positioning and fit of the first welding part and the second welding part 20, which can reduce the difficulty of adjusting the ultrasonic welding equipment, reduce the injection molding debugging accuracy, shorten the production changeover cycle, and reduce the product defect rate.

[0051] It should be noted that the first part to be welded 10 and the second part to be welded 20 are coaxially arranged; one end of the first part to be welded 10 is provided with a first groove and a first welding part; one end of the second part to be welded 20 is provided with a second groove and a second welding part; wherein, the guide ring 30 is located in the first groove and the guide sleeve 40 is located in the second groove; in addition, the first welding part and the second welding part are both annular, the first welding part surrounds the first groove and the second welding part surrounds the second groove.

[0052] It should also be noted that the guide ring 30 and the first part to be welded 10 can be connected by injection molding; the guide sleeve 40 and the second part to be welded 20 can be connected by injection molding.

[0053] It should also be noted that the number of guide rings 30 and guide sleeves 40 is set according to actual needs, for example, such as Figure 3 , Figure 5 As shown, the number of guide rings 30 and guide sleeves 40 can be three. The three guide rings 30 are arranged at equal intervals around the first welding part, and the three guide sleeves 40 are arranged at equal intervals around the second welding part.

[0054] It should also be noted that the first welding part and the second welding part are the positions where the first workpiece 10 and the second workpiece 20 are ultrasonically welded, i.e., the welding surfaces; the first welding part and the second welding part are entered into the fusion state by the transmission of ultrasonic energy.

[0055] like Figure 2 As shown, in some embodiments, the guide sleeve 40 includes an outer guide sleeve 420 and an inner guide sleeve 430; one end of the outer guide sleeve 420 is disposed on the second part to be welded 20; one end of the inner guide sleeve 430 is disposed on the second part to be welded 20 and located inside the outer guide sleeve 420, and the guide groove 410 is located between the outer guide sleeve 420 and the inner guide sleeve 430.

[0056] By setting an outer guide sleeve 420 and an inner guide sleeve 430, and placing the guide groove 410 between the outer guide sleeve 420 and the inner guide sleeve 430, the guide ring 30 plays a guiding role both inside and outside, thereby playing a dual guiding and positioning correction role, further improving the accuracy of positioning correction, and completely solving the offset problem caused by ultrasonic welding vibration.

[0057] It should be noted that the outer guide sleeve 420 and the inner guide sleeve 430 are coaxially arranged.

[0058] Example 3

[0059] like Figure 1 , Figure 2As shown, the welding positioning structure includes a first weldable part 10, a second weldable part 20, multiple guide rings 30, and multiple guide sleeves 40; the first weldable part 10 is provided with a first welding part; the second weldable part 20 is provided with a second welding part that cooperates with the first welding part; multiple guide rings 30 are provided on the first weldable part 10 and are arranged circumferentially around the first welding part at intervals; multiple guide sleeves 40 are provided on the second weldable part 20 and are arranged circumferentially around the second welding part at intervals, and the multiple guide sleeves 40 correspond one-to-one with the multiple guide rings 30, and the guide sleeves 40 are provided with guide grooves 410 that cooperate with the corresponding guide rings 30.

[0060] As can be seen from the above, by setting multiple guide rings 30 to cooperate with the guide grooves 410, the guide rings 30 inserted into the guide grooves 410 play a positioning and correction role, enabling the first welding part to be aligned and fitted with the second welding part. This effectively eliminates the influence of vibration during the operation of the ultrasonic welding equipment, achieves precise positioning and correction, prevents the first welding part and the second welding part from being misaligned, and avoids quality problems such as misalignment of appearance and whitening of the welding line edge after the first welding part 10 and the second welding part 20 are welded. By setting the annular guide rings 30, the appearance of the welded product is prevented from quality problems such as injection molding shrinkage. Compared with the existing solid guide pillars, the use of guide rings 30 effectively reduces the thickness of the root while ensuring the reliability of positioning and guidance, and avoids the shrinkage mark caused by excessive local thickness of the injection molded part. Therefore, the welding positioning structure provided by this utility model effectively realizes the simplified positioning and fit of the first welding part and the second welding part 20, which can reduce the difficulty of adjusting the ultrasonic welding equipment, reduce the injection molding debugging accuracy, shorten the production changeover cycle, and reduce the product defect rate.

[0061] It should be noted that the first part to be welded 10 and the second part to be welded 20 are coaxially arranged; one end of the first part to be welded 10 is provided with a first groove and a first welding part; one end of the second part to be welded 20 is provided with a second groove and a second welding part; wherein, the guide ring 30 is located in the first groove and the guide sleeve 40 is located in the second groove; in addition, the first welding part and the second welding part are both annular, the first welding part surrounds the first groove and the second welding part surrounds the second groove.

[0062] It should also be noted that the guide ring 30 and the first part to be welded 10 can be connected by injection molding; the guide sleeve 40 and the second part to be welded 20 can be connected by injection molding.

[0063] It should also be noted that the number of guide rings 30 and guide sleeves 40 is set according to actual needs, for example, such as Figure 3 , Figure 5As shown, the number of guide rings 30 and guide sleeves 40 can be three. The three guide rings 30 are arranged at equal intervals around the first welding part, and the three guide sleeves 40 are arranged at equal intervals around the second welding part.

[0064] It should also be noted that the first welding part and the second welding part are the positions where the first workpiece 10 and the second workpiece 20 are ultrasonically welded, i.e., the welding surfaces; the first welding part and the second welding part are entered into the fusion state by the transmission of ultrasonic energy.

[0065] like Figure 2 As shown, in some embodiments, the guide sleeve 40 includes an outer guide sleeve 420 and an inner guide sleeve 430; one end of the outer guide sleeve 420 is disposed on the second part to be welded 20; one end of the inner guide sleeve 430 is disposed on the second part to be welded 20 and located inside the outer guide sleeve 420, and the guide groove 410 is located between the outer guide sleeve 420 and the inner guide sleeve 430.

[0066] By setting an outer guide sleeve 420 and an inner guide sleeve 430, and placing the guide groove 410 between the outer guide sleeve 420 and the inner guide sleeve 430, the guide ring 30 plays a guiding role both inside and outside, thereby playing a dual guiding and positioning correction role, further improving the accuracy of positioning correction, and completely solving the offset problem caused by ultrasonic welding vibration.

[0067] It should be noted that the outer guide sleeve 420 and the inner guide sleeve 430 are coaxially arranged.

[0068] like Figures 6-8 As shown, in some embodiments, the inner wall of the outer guide sleeve 420 is provided with a plurality of outer braces 440, which are arranged circumferentially around the outer guide sleeve 420 at intervals; the outer wall of the inner guide sleeve 430 is provided with a plurality of inner braces 450, which are arranged circumferentially around the inner guide sleeve 430 at intervals, and the plurality of inner braces 450 correspond one-to-one with the plurality of outer braces 440; wherein, the inner braces 450 and the corresponding outer braces 440 have a distance in the radial direction.

[0069] By setting outer braces 440 and inner braces 450 spaced apart in the radial direction, a guide groove 410 is formed between the outer braces 440 and inner braces 450. The outer braces 440 and inner braces 450 cooperate with the outer wall and inner wall of the guide ring 30, respectively, thereby playing a bidirectional guiding and positioning role and improving welding reliability. In addition, the outer braces 440 and inner braces 450 are also fusion structures, which can be transmitted by ultrasonic energy and also enter the fusion state, realizing double welding and thus increasing welding strength.

[0070] It should be noted that the outer braid 440 can be connected to the outer guide sleeve 420 by injection molding; the inner braid 450 can be connected to the inner guide sleeve 430 by injection molding.

[0071] It should also be noted that the inner bramble 450 and the corresponding outer bramble 440 are located in the same radial direction; furthermore, the number of inner brambles 450 and outer brambles 440 is set according to actual needs, for example, such as Figure 6 As shown, there are three inner braces 450 and three outer braces 440. The three inner braces 450 are arranged at equal intervals around the inner guide sleeve 430, and the three outer braces 440 are arranged at equal intervals around the outer guide sleeve 420.

[0072] Example 4

[0073] like Figure 1 , Figure 2 As shown, the welding positioning structure includes a first weldable part 10, a second weldable part 20, multiple guide rings 30, and multiple guide sleeves 40; the first weldable part 10 is provided with a first welding part; the second weldable part 20 is provided with a second welding part that cooperates with the first welding part; multiple guide rings 30 are provided on the first weldable part 10 and are arranged circumferentially around the first welding part at intervals; multiple guide sleeves 40 are provided on the second weldable part 20 and are arranged circumferentially around the second welding part at intervals, and the multiple guide sleeves 40 correspond one-to-one with the multiple guide rings 30, and the guide sleeves 40 are provided with guide grooves 410 that cooperate with the corresponding guide rings 30.

[0074] As can be seen from the above, by setting multiple guide rings 30 to cooperate with the guide grooves 410, the guide rings 30 inserted into the guide grooves 410 play a positioning and correction role, enabling the first welding part to be aligned and fitted with the second welding part. This effectively eliminates the influence of vibration during the operation of the ultrasonic welding equipment, achieves precise positioning and correction, prevents the first welding part and the second welding part from being misaligned, and avoids quality problems such as misalignment of appearance and whitening of the welding line edge after the first welding part 10 and the second welding part 20 are welded. By setting the annular guide rings 30, the appearance of the welded product is prevented from quality problems such as injection molding shrinkage. Compared with the existing solid guide pillars, the use of guide rings 30 effectively reduces the thickness of the root while ensuring the reliability of positioning and guidance, and avoids the shrinkage mark caused by excessive local thickness of the injection molded part. Therefore, the welding positioning structure provided by this utility model effectively realizes the simplified positioning and fit of the first welding part and the second welding part 20, which can reduce the difficulty of adjusting the ultrasonic welding equipment, reduce the injection molding debugging accuracy, shorten the production changeover cycle, and reduce the product defect rate.

[0075] It should be noted that the first part to be welded 10 and the second part to be welded 20 are coaxially arranged; one end of the first part to be welded 10 is provided with a first groove and a first welding part; one end of the second part to be welded 20 is provided with a second groove and a second welding part; wherein, the guide ring 30 is located in the first groove and the guide sleeve 40 is located in the second groove; in addition, the first welding part and the second welding part are both annular, the first welding part surrounds the first groove and the second welding part surrounds the second groove.

[0076] It should also be noted that the guide ring 30 and the first part to be welded 10 can be connected by injection molding; the guide sleeve 40 and the second part to be welded 20 can be connected by injection molding.

[0077] It should also be noted that the number of guide rings 30 and guide sleeves 40 is set according to actual needs, for example, such as Figure 3 , Figure 5 As shown, the number of guide rings 30 and guide sleeves 40 can be three. The three guide rings 30 are arranged at equal intervals around the first welding part, and the three guide sleeves 40 are arranged at equal intervals around the second welding part.

[0078] It should also be noted that the first welding part and the second welding part are the positions where the first workpiece 10 and the second workpiece 20 are ultrasonically welded, i.e., the welding surfaces; the first welding part and the second welding part are entered into the fusion state by the transmission of ultrasonic energy.

[0079] like Figure 2 As shown, in some embodiments, the guide sleeve 40 includes an outer guide sleeve 420 and an inner guide sleeve 430; one end of the outer guide sleeve 420 is disposed on the second part to be welded 20; one end of the inner guide sleeve 430 is disposed on the second part to be welded 20 and located inside the outer guide sleeve 420, and the guide groove 410 is located between the outer guide sleeve 420 and the inner guide sleeve 430.

[0080] By setting an outer guide sleeve 420 and an inner guide sleeve 430, and placing the guide groove 410 between the outer guide sleeve 420 and the inner guide sleeve 430, the guide ring 30 plays a guiding role both inside and outside, thereby playing a dual guiding and positioning correction role, further improving the accuracy of positioning correction, and completely solving the offset problem caused by ultrasonic welding vibration.

[0081] It should be noted that the outer guide sleeve 420 and the inner guide sleeve 430 are coaxially arranged.

[0082] like Figures 6-8As shown, in some embodiments, the inner wall of the outer guide sleeve 420 is provided with a plurality of outer braces 440, which are arranged circumferentially around the outer guide sleeve 420 at intervals; the outer wall of the inner guide sleeve 430 is provided with a plurality of inner braces 450, which are arranged circumferentially around the inner guide sleeve 430 at intervals, and the plurality of inner braces 450 correspond one-to-one with the plurality of outer braces 440; wherein, the inner braces 450 and the corresponding outer braces 440 have a distance in the radial direction.

[0083] By setting outer braces 440 and inner braces 450 spaced apart in the radial direction, a guide groove 410 is formed between the outer braces 440 and inner braces 450. The outer braces 440 and inner braces 450 cooperate with the outer wall and inner wall of the guide ring 30, respectively, thereby playing a bidirectional guiding and positioning role and improving welding reliability. In addition, the outer braces 440 and inner braces 450 are also fusion structures, which can be transmitted by ultrasonic energy and also enter the fusion state, realizing double welding and thus increasing welding strength.

[0084] It should be noted that the outer braid 440 can be connected to the outer guide sleeve 420 by injection molding; the inner braid 450 can be connected to the inner guide sleeve 430 by injection molding.

[0085] It should also be noted that the inner bramble 450 and the corresponding outer bramble 440 are located in the same radial direction; furthermore, the number of inner brambles 450 and outer brambles 440 is set according to actual needs, for example, such as... Figure 6 As shown, there are three inner braces 450 and three outer braces 440. The three inner braces 450 are arranged at equal intervals around the inner guide sleeve 430, and the three outer braces 440 are arranged at equal intervals around the outer guide sleeve 420.

[0086] like Figure 8 As shown, in some embodiments, the width of the outer bramble 440 and the inner bramble 450 in the radial direction gradually increases along the axial direction, and the width of the outer bramble 440 and the inner bramble 450 in the radial direction at the end closer to the first weldment 10 is smaller than the width of the outer bramble 440 and the inner bramble 450 in the radial direction at the end farther away from the first weldment 10.

[0087] By setting the outer bracing 440 and inner bracing 450 to gradually change their width in the radial direction, the first part to be welded 10 and the second part to be welded 20 are precisely guided, thereby further improving the effect of precise alignment and correction.

[0088] It should be noted that, as Figure 8 As shown, the axial direction is parallel to the Z direction.

[0089] Example 5

[0090] like Figure 1 , Figure 2 As shown, the welding positioning structure includes a first weldable part 10, a second weldable part 20, multiple guide rings 30, and multiple guide sleeves 40; the first weldable part 10 is provided with a first welding part; the second weldable part 20 is provided with a second welding part that cooperates with the first welding part; multiple guide rings 30 are provided on the first weldable part 10 and are arranged circumferentially around the first welding part at intervals; multiple guide sleeves 40 are provided on the second weldable part 20 and are arranged circumferentially around the second welding part at intervals, and the multiple guide sleeves 40 correspond one-to-one with the multiple guide rings 30, and the guide sleeves 40 are provided with guide grooves 410 that cooperate with the corresponding guide rings 30.

[0091] As can be seen from the above, by setting multiple guide rings 30 to cooperate with the guide grooves 410, the guide rings 30 inserted into the guide grooves 410 play a positioning and correction role, enabling the first welding part to be aligned and fitted with the second welding part. This effectively eliminates the influence of vibration during the operation of the ultrasonic welding equipment, achieves precise positioning and correction, prevents the first welding part and the second welding part from being misaligned, and avoids quality problems such as misalignment of appearance and whitening of the welding line edge after the first welding part 10 and the second welding part 20 are welded. By setting the annular guide rings 30, the appearance of the welded product is prevented from quality problems such as injection molding shrinkage. Compared with the existing solid guide pillars, the use of guide rings 30 effectively reduces the thickness of the root while ensuring the reliability of positioning and guidance, and avoids the shrinkage mark caused by excessive local thickness of the injection molded part. Therefore, the welding positioning structure provided by this utility model effectively realizes the simplified positioning and fit of the first welding part and the second welding part 20, which can reduce the difficulty of adjusting the ultrasonic welding equipment, reduce the injection molding debugging accuracy, shorten the production changeover cycle, and reduce the product defect rate.

[0092] It should be noted that the first part to be welded 10 and the second part to be welded 20 are coaxially arranged; one end of the first part to be welded 10 is provided with a first groove and a first welding part; one end of the second part to be welded 20 is provided with a second groove and a second welding part; wherein, the guide ring 30 is located in the first groove and the guide sleeve 40 is located in the second groove; in addition, the first welding part and the second welding part are both annular, the first welding part surrounds the first groove and the second welding part surrounds the second groove.

[0093] It should also be noted that the guide ring 30 and the first part to be welded 10 can be connected by injection molding; the guide sleeve 40 and the second part to be welded 20 can be connected by injection molding.

[0094] It should also be noted that the number of guide rings 30 and guide sleeves 40 is set according to actual needs, for example, such as Figure 3 , Figure 5As shown, the number of guide rings 30 and guide sleeves 40 can be three. The three guide rings 30 are arranged at equal intervals around the first welding part, and the three guide sleeves 40 are arranged at equal intervals around the second welding part.

[0095] It should also be noted that the first welding part and the second welding part are the positions where the first workpiece 10 and the second workpiece 20 are ultrasonically welded, i.e., the welding surfaces; the first welding part and the second welding part are entered into the fusion state by the transmission of ultrasonic energy.

[0096] like Figure 2 As shown, in some embodiments, the guide sleeve 40 includes an outer guide sleeve 420 and an inner guide sleeve 430; one end of the outer guide sleeve 420 is disposed on the second part to be welded 20; one end of the inner guide sleeve 430 is disposed on the second part to be welded 20 and located inside the outer guide sleeve 420, and the guide groove 410 is located between the outer guide sleeve 420 and the inner guide sleeve 430.

[0097] By setting an outer guide sleeve 420 and an inner guide sleeve 430, and placing the guide groove 410 between the outer guide sleeve 420 and the inner guide sleeve 430, the guide ring 30 plays a guiding role both inside and outside, thereby playing a dual guiding and positioning correction role, further improving the accuracy of positioning correction, and completely solving the offset problem caused by ultrasonic welding vibration.

[0098] It should be noted that the outer guide sleeve 420 and the inner guide sleeve 430 are coaxially arranged.

[0099] like Figures 6-8 As shown, in some embodiments, the inner wall of the outer guide sleeve 420 is provided with a plurality of outer braces 440, which are arranged circumferentially around the outer guide sleeve 420 at intervals; the outer wall of the inner guide sleeve 430 is provided with a plurality of inner braces 450, which are arranged circumferentially around the inner guide sleeve 430 at intervals, and the plurality of inner braces 450 correspond one-to-one with the plurality of outer braces 440; wherein, the inner braces 450 and the corresponding outer braces 440 have a distance in the radial direction.

[0100] By setting outer braces 440 and inner braces 450 spaced apart in the radial direction, a guide groove 410 is formed between the outer braces 440 and inner braces 450. The outer braces 440 and inner braces 450 cooperate with the outer wall and inner wall of the guide ring 30, respectively, thereby playing a bidirectional guiding and positioning role and improving welding reliability. In addition, the outer braces 440 and inner braces 450 are also fusion structures, which can be transmitted by ultrasonic energy and also enter the fusion state, realizing double welding and thus increasing welding strength.

[0101] It should be noted that the outer braid 440 can be connected to the outer guide sleeve 420 by injection molding; the inner braid 450 can be connected to the inner guide sleeve 430 by injection molding.

[0102] It should also be noted that the inner bramble 450 and the corresponding outer bramble 440 are located in the same radial direction; furthermore, the number of inner brambles 450 and outer brambles 440 is set according to actual needs, for example, such as... Figure 6 As shown, there are three inner braces 450 and three outer braces 440. The three inner braces 450 are arranged at equal intervals around the inner guide sleeve 430, and the three outer braces 440 are arranged at equal intervals around the outer guide sleeve 420.

[0103] like Figure 8 As shown, in some embodiments, the width of the outer bramble 440 and the inner bramble 450 in the radial direction gradually increases along the axial direction, and the width of the outer bramble 440 and the inner bramble 450 in the radial direction at the end closer to the first weldment 10 is smaller than the width of the outer bramble 440 and the inner bramble 450 in the radial direction at the end farther away from the first weldment 10.

[0104] By setting the outer bracing 440 and inner bracing 450 to gradually change their width in the radial direction, the first part to be welded 10 and the second part to be welded 20 are precisely guided, thereby further improving the effect of precise alignment and correction.

[0105] It should be noted that, as Figure 8 As shown, the axial direction is parallel to the Z direction.

[0106] like Figure 8 As shown, in some embodiments, the outer bracing 440 includes an outer inclined surface located on the side of the outer bracing 440 away from the outer guide sleeve 420; the inner bracing 450 includes an inner inclined surface located on the side of the inner bracing 450 away from the inner guide sleeve 430; wherein, the angle between the outer inclined surface and the axial direction is 2°-5°, and the angle between the inner inclined surface and the axial direction is 2°-5°.

[0107] By setting the inclination angle of the inner and outer bevels to 2°-5°, it is possible to ensure accurate positioning and correction while also facilitating welding. This avoids the problem of the inclination angle being too large, which would make it difficult to achieve the positioning function, and also avoids the problem of the inclination angle being too small, which would make it difficult to weld the outer bracing 440, inner bracing 450 and guide ring 30.

[0108] Preferably, in some embodiments, the angle between the outer inclined surface and the axial direction is 3°, and the angle between the inner inclined surface and the axial direction is 3°.

[0109] In some embodiments, both the outer wicker 440 and the inner wicker 450 are pyramidal in shape.

[0110] By setting the outer ribs 440 and inner ribs 450 to a pyramidal shape, the guide ring 30 has a slightly squeezed damping feel when inserted into the guide groove 410. In subsequent ultrasonic welding, each outer rib 440 and inner rib 450 can serve as a welding point. Compared with other shapes of outer ribs 440 and inner ribs 450, the pyramidal outer ribs 440 and inner ribs 450 are easier to weld together, resulting in higher welding reliability.

[0111] It should be noted that the cross-sections of the outer bramble 440 and the inner bramble 450 can be isosceles triangles, that is, cross-sections perpendicular to the axial direction.

[0112] It should also be noted that the outer twig 440 and the inner twig 450 can also be prismatic or conical; in addition, the shapes of the outer twig 440 and the inner twig 450 can be the same or different, and this application does not impose specific restrictions.

[0113] Example 6

[0114] like Figure 1 , Figure 2 As shown, the welding positioning structure includes a first weldable part 10, a second weldable part 20, multiple guide rings 30, and multiple guide sleeves 40; the first weldable part 10 is provided with a first welding part; the second weldable part 20 is provided with a second welding part that cooperates with the first welding part; multiple guide rings 30 are provided on the first weldable part 10 and are arranged circumferentially around the first welding part at intervals; multiple guide sleeves 40 are provided on the second weldable part 20 and are arranged circumferentially around the second welding part at intervals, and the multiple guide sleeves 40 correspond one-to-one with the multiple guide rings 30, and the guide sleeves 40 are provided with guide grooves 410 that cooperate with the corresponding guide rings 30.

[0115] As can be seen from the above, by setting multiple guide rings 30 to cooperate with the guide grooves 410, the guide rings 30 inserted into the guide grooves 410 play a positioning and correction role, enabling the first welding part to be aligned and fitted with the second welding part. This effectively eliminates the influence of vibration during the operation of the ultrasonic welding equipment, achieves precise positioning and correction, prevents the first welding part and the second welding part from being misaligned, and avoids quality problems such as misalignment of appearance and whitening of the welding line edge after the first welding part 10 and the second welding part 20 are welded. By setting the annular guide rings 30, the appearance of the welded product is prevented from quality problems such as injection molding shrinkage. Compared with the existing solid guide pillars, the use of guide rings 30 effectively reduces the thickness of the root while ensuring the reliability of positioning and guidance, and avoids the shrinkage mark caused by excessive local thickness of the injection molded part. Therefore, the welding positioning structure provided by this utility model effectively realizes the simplified positioning and fit of the first welding part and the second welding part 20, which can reduce the difficulty of adjusting the ultrasonic welding equipment, reduce the injection molding debugging accuracy, shorten the production changeover cycle, and reduce the product defect rate.

[0116] It should be noted that the first part to be welded 10 and the second part to be welded 20 are coaxially arranged; one end of the first part to be welded 10 is provided with a first groove and a first welding part; one end of the second part to be welded 20 is provided with a second groove and a second welding part; wherein, the guide ring 30 is located in the first groove and the guide sleeve 40 is located in the second groove; in addition, the first welding part and the second welding part are both annular, the first welding part surrounds the first groove and the second welding part surrounds the second groove.

[0117] It should also be noted that the guide ring 30 and the first part to be welded 10 can be connected by injection molding; the guide sleeve 40 and the second part to be welded 20 can be connected by injection molding.

[0118] It should also be noted that the number of guide rings 30 and guide sleeves 40 is set according to actual needs, for example, such as Figure 3 , Figure 5 As shown, the number of guide rings 30 and guide sleeves 40 can be three. The three guide rings 30 are arranged at equal intervals around the first welding part, and the three guide sleeves 40 are arranged at equal intervals around the second welding part.

[0119] It should also be noted that the first welding part and the second welding part are the positions where the first workpiece 10 and the second workpiece 20 are ultrasonically welded, i.e., the welding surfaces; the first welding part and the second welding part are entered into the fusion state by the transmission of ultrasonic energy.

[0120] like Figure 2As shown, in some embodiments, the guide sleeve 40 includes an outer guide sleeve 420 and an inner guide sleeve 430; one end of the outer guide sleeve 420 is disposed on the second part to be welded 20; one end of the inner guide sleeve 430 is disposed on the second part to be welded 20 and located inside the outer guide sleeve 420, and the guide groove 410 is located between the outer guide sleeve 420 and the inner guide sleeve 430.

[0121] By setting an outer guide sleeve 420 and an inner guide sleeve 430, and placing the guide groove 410 between the outer guide sleeve 420 and the inner guide sleeve 430, the guide ring 30 plays a guiding role both inside and outside, thereby playing a dual guiding and positioning correction role, further improving the accuracy of positioning correction, and completely solving the offset problem caused by ultrasonic welding vibration.

[0122] It should be noted that the outer guide sleeve 420 and the inner guide sleeve 430 are coaxially arranged.

[0123] like Figures 6-8 As shown, in some embodiments, the inner wall of the outer guide sleeve 420 is provided with a plurality of outer braces 440, which are arranged circumferentially around the outer guide sleeve 420 at intervals; the outer wall of the inner guide sleeve 430 is provided with a plurality of inner braces 450, which are arranged circumferentially around the inner guide sleeve 430 at intervals, and the plurality of inner braces 450 correspond one-to-one with the plurality of outer braces 440; wherein, the inner braces 450 and the corresponding outer braces 440 have a distance in the radial direction.

[0124] By setting outer braces 440 and inner braces 450 spaced apart in the radial direction, a guide groove 410 is formed between the outer braces 440 and inner braces 450. The outer braces 440 and inner braces 450 cooperate with the outer wall and inner wall of the guide ring 30, respectively, thereby playing a bidirectional guiding and positioning role and improving welding reliability. In addition, the outer braces 440 and inner braces 450 are also fusion structures, which can be transmitted by ultrasonic energy and also enter the fusion state, realizing double welding and thus increasing welding strength.

[0125] It should be noted that the outer braid 440 can be connected to the outer guide sleeve 420 by injection molding; the inner braid 450 can be connected to the inner guide sleeve 430 by injection molding.

[0126] It should also be noted that the inner bramble 450 and the corresponding outer bramble 440 are located in the same radial direction; furthermore, the number of inner brambles 450 and outer brambles 440 is set according to actual needs, for example, such as... Figure 6 As shown, there are three inner braces 450 and three outer braces 440. The three inner braces 450 are arranged at equal intervals around the inner guide sleeve 430, and the three outer braces 440 are arranged at equal intervals around the outer guide sleeve 420.

[0127] like Figure 8 As shown, in some embodiments, the width of the outer bramble 440 and the inner bramble 450 in the radial direction gradually increases along the axial direction, and the width of the outer bramble 440 and the inner bramble 450 in the radial direction at the end closer to the first weldment 10 is smaller than the width of the outer bramble 440 and the inner bramble 450 in the radial direction at the end farther away from the first weldment 10.

[0128] By setting the outer bracing 440 and inner bracing 450 to gradually change their width in the radial direction, the first part to be welded 10 and the second part to be welded 20 are precisely guided, thereby further improving the effect of precise alignment and correction.

[0129] It should be noted that, as Figure 8 As shown, the axial direction is parallel to the Z direction.

[0130] like Figure 8 As shown, in some embodiments, the outer bracing 440 includes an outer inclined surface located on the side of the outer bracing 440 away from the outer guide sleeve 420; the inner bracing 450 includes an inner inclined surface located on the side of the inner bracing 450 away from the inner guide sleeve 430; wherein, the angle between the outer inclined surface and the axial direction is 2°-5°, and the angle between the inner inclined surface and the axial direction is 2°-5°.

[0131] By setting the inclination angle of the inner and outer bevels to 2°-5°, it is possible to ensure accurate positioning and correction while also facilitating welding. This avoids the problem of the inclination angle being too large, which would make it difficult to achieve the positioning function, and also avoids the problem of the inclination angle being too small, which would make it difficult to weld the outer bracing 440, inner bracing 450 and guide ring 30.

[0132] Preferably, in some embodiments, the angle between the outer inclined surface and the axial direction is 3°, and the angle between the inner inclined surface and the axial direction is 3°.

[0133] In some embodiments, both the outer wicker 440 and the inner wicker 450 are pyramidal in shape.

[0134] By setting the outer ribs 440 and inner ribs 450 to a pyramidal shape, the guide ring 30 has a slightly squeezed damping feel when inserted into the guide groove 410. In subsequent ultrasonic welding, each outer rib 440 and inner rib 450 can serve as a welding point. Compared with other shapes of outer ribs 440 and inner ribs 450, the pyramidal outer ribs 440 and inner ribs 450 are easier to weld together, resulting in higher welding reliability.

[0135] It should be noted that the cross-sections of the outer bramble 440 and the inner bramble 450 can be isosceles triangles, that is, cross-sections perpendicular to the axial direction.

[0136] It should also be noted that the outer twig 440 and the inner twig 450 can also be prismatic or conical; in addition, the outer twig 440 and the inner twig 450 can be the same or different, and this application does not impose specific restrictions.

[0137] In some embodiments, the edge of the guide ring 30 at the end away from the first weldment 10 is rounded; the edge of the guide sleeve 40 at the end away from the second weldment 20 is rounded.

[0138] By setting an arc transition to form a rounded corner, the guide ring 30 can be quickly installed into the guide groove 410, achieving a fast and accurate guiding function.

[0139] It should be noted that the angle of the rounded transition of the edge of the guide ring 30 away from the first weldment 10 is P1, and the angle of the rounded transition of the edge of the guide sleeve post 40 away from the second weldment 20 is P2, where P2 is greater than P2; in addition, the edges of the inner wall of the outer guide sleeve 420 and the outer wall of the inner guide sleeve 430 are both rounded.

[0140] Example 7

[0141] like Figure 1 , Figure 2 As shown, the welding positioning structure includes a first weldable part 10, a second weldable part 20, multiple guide rings 30, and multiple guide sleeves 40; the first weldable part 10 is provided with a first welding part; the second weldable part 20 is provided with a second welding part that cooperates with the first welding part; multiple guide rings 30 are provided on the first weldable part 10 and are arranged circumferentially around the first welding part at intervals; multiple guide sleeves 40 are provided on the second weldable part 20 and are arranged circumferentially around the second welding part at intervals, and the multiple guide sleeves 40 correspond one-to-one with the multiple guide rings 30, and the guide sleeves 40 are provided with guide grooves 410 that cooperate with the corresponding guide rings 30.

[0142] As can be seen from the above, by setting multiple guide rings 30 to cooperate with the guide grooves 410, the guide rings 30 inserted into the guide grooves 410 play a positioning and correction role, enabling the first welding part to be aligned and fitted with the second welding part. This effectively eliminates the influence of vibration during the operation of the ultrasonic welding equipment, achieves precise positioning and correction, prevents the first welding part and the second welding part from being misaligned, and avoids quality problems such as misalignment of appearance and whitening of the welding line edge after the first welding part 10 and the second welding part 20 are welded. By setting the annular guide rings 30, the appearance of the welded product is prevented from quality problems such as injection molding shrinkage. Compared with the existing solid guide pillars, the use of guide rings 30 effectively reduces the thickness of the root while ensuring the reliability of positioning and guidance, and avoids the shrinkage mark caused by excessive local thickness of the injection molded part. Therefore, the welding positioning structure provided by this utility model effectively realizes the simplified positioning and fit of the first welding part and the second welding part 20, which can reduce the difficulty of adjusting the ultrasonic welding equipment, reduce the injection molding debugging accuracy, shorten the production changeover cycle, and reduce the product defect rate.

[0143] It should be noted that the first part to be welded 10 and the second part to be welded 20 are coaxially arranged; one end of the first part to be welded 10 is provided with a first groove and a first welding part; one end of the second part to be welded 20 is provided with a second groove and a second welding part; wherein, the guide ring 30 is located in the first groove and the guide sleeve 40 is located in the second groove; in addition, the first welding part and the second welding part are both annular, the first welding part surrounds the first groove and the second welding part surrounds the second groove.

[0144] It should also be noted that the guide ring 30 and the first part to be welded 10 can be connected by injection molding; the guide sleeve 40 and the second part to be welded 20 can be connected by injection molding.

[0145] It should also be noted that the number of guide rings 30 and guide sleeves 40 is set according to actual needs, for example, such as Figure 3 , Figure 5 As shown, the number of guide rings 30 and guide sleeves 40 can be three. The three guide rings 30 are arranged at equal intervals around the first welding part, and the three guide sleeves 40 are arranged at equal intervals around the second welding part.

[0146] It should also be noted that the first welding part and the second welding part are the positions where the first workpiece 10 and the second workpiece 20 are ultrasonically welded, i.e., the welding surfaces; the first welding part and the second welding part are entered into the fusion state by the transmission of ultrasonic energy.

[0147] like Figure 2As shown, in some embodiments, the guide sleeve 40 includes an outer guide sleeve 420 and an inner guide sleeve 430; one end of the outer guide sleeve 420 is disposed on the second part to be welded 20; one end of the inner guide sleeve 430 is disposed on the second part to be welded 20 and located inside the outer guide sleeve 420, and the guide groove 410 is located between the outer guide sleeve 420 and the inner guide sleeve 430.

[0148] By setting an outer guide sleeve 420 and an inner guide sleeve 430, and placing the guide groove 410 between the outer guide sleeve 420 and the inner guide sleeve 430, the guide ring 30 plays a guiding role both inside and outside, thereby playing a dual guiding and positioning correction role, further improving the accuracy of positioning correction, and completely solving the offset problem caused by ultrasonic welding vibration.

[0149] It should be noted that the outer guide sleeve 420 and the inner guide sleeve 430 are coaxially arranged.

[0150] like Figures 6-8 As shown, in some embodiments, the inner wall of the outer guide sleeve 420 is provided with a plurality of outer braces 440, which are arranged circumferentially around the outer guide sleeve 420 at intervals; the outer wall of the inner guide sleeve 430 is provided with a plurality of inner braces 450, which are arranged circumferentially around the inner guide sleeve 430 at intervals, and the plurality of inner braces 450 correspond one-to-one with the plurality of outer braces 440; wherein, the inner braces 450 and the corresponding outer braces 440 have a distance in the radial direction.

[0151] By setting outer braces 440 and inner braces 450 spaced apart in the radial direction, a guide groove 410 is formed between the outer braces 440 and inner braces 450. The outer braces 440 and inner braces 450 cooperate with the outer wall and inner wall of the guide ring 30, respectively, thereby playing a bidirectional guiding and positioning role and improving welding reliability. In addition, the outer braces 440 and inner braces 450 are also fusion structures, which can be transmitted by ultrasonic energy and also enter the fusion state, realizing double welding and thus increasing welding strength.

[0152] It should be noted that the outer braid 440 can be connected to the outer guide sleeve 420 by injection molding; the inner braid 450 can be connected to the inner guide sleeve 430 by injection molding.

[0153] It should also be noted that the inner bramble 450 and the corresponding outer bramble 440 are located in the same radial direction; furthermore, the number of inner brambles 450 and outer brambles 440 is set according to actual needs, for example, such as... Figure 6 As shown, there are three inner braces 450 and three outer braces 440. The three inner braces 450 are arranged at equal intervals around the inner guide sleeve 430, and the three outer braces 440 are arranged at equal intervals around the outer guide sleeve 420.

[0154] like Figure 8 As shown, in some embodiments, the width of the outer bramble 440 and the inner bramble 450 in the radial direction gradually increases along the axial direction, and the width of the outer bramble 440 and the inner bramble 450 in the radial direction at the end closer to the first weldment 10 is smaller than the width of the outer bramble 440 and the inner bramble 450 in the radial direction at the end farther away from the first weldment 10.

[0155] By setting the outer bracing 440 and inner bracing 450 to gradually change their width in the radial direction, the first part to be welded 10 and the second part to be welded 20 are precisely guided, thereby further improving the effect of precise alignment and correction.

[0156] It should be noted that, as Figure 8 As shown, the axial direction is parallel to the Z direction.

[0157] like Figure 8 As shown, in some embodiments, the outer bracing 440 includes an outer inclined surface located on the side of the outer bracing 440 away from the outer guide sleeve 420; the inner bracing 450 includes an inner inclined surface located on the side of the inner bracing 450 away from the inner guide sleeve 430; wherein, the angle between the outer inclined surface and the axial direction is 2°-5°, and the angle between the inner inclined surface and the axial direction is 2°-5°.

[0158] By setting the inclination angle of the inner and outer bevels to 2°-5°, it is possible to ensure accurate positioning and correction while also facilitating welding. This avoids the problem of the inclination angle being too large, which would make it difficult to achieve the positioning function, and also avoids the problem of the inclination angle being too small, which would make it difficult to weld the outer bracing 440, inner bracing 450 and guide ring 30.

[0159] Preferably, in some embodiments, the angle between the outer inclined surface and the axial direction is 3°, and the angle between the inner inclined surface and the axial direction is 3°.

[0160] In some embodiments, both the outer wicker 440 and the inner wicker 450 are pyramidal in shape.

[0161] By setting the outer ribs 440 and inner ribs 450 to a pyramidal shape, the guide ring 30 has a slightly squeezed damping feel when inserted into the guide groove 410. In subsequent ultrasonic welding, each outer rib 440 and inner rib 450 can serve as a welding point. Compared with other shapes of outer ribs 440 and inner ribs 450, the pyramidal outer ribs 440 and inner ribs 450 are easier to weld together, resulting in higher welding reliability.

[0162] It should be noted that the cross-sections of the outer bramble 440 and the inner bramble 450 can be isosceles triangles, that is, cross-sections perpendicular to the axial direction.

[0163] It should also be noted that the outer twig 440 and the inner twig 450 can also be prismatic or conical; in addition, the outer twig 440 and the inner twig 450 can be the same or different, and this application does not impose specific restrictions.

[0164] In some embodiments, the edge of the guide ring 30 at the end away from the first weldment 10 is rounded; the edge of the guide sleeve 40 at the end away from the second weldment 20 is rounded.

[0165] By setting an arc transition to form a rounded corner, the guide ring 30 can be quickly installed into the guide groove 410, achieving a fast and accurate guiding function.

[0166] It should be noted that the angle of the rounded transition of the edge of the guide ring 30 away from the first weldment 10 is P1, and the angle of the rounded transition of the edge of the guide sleeve post 40 away from the second weldment 20 is P2, where P2 is greater than P2; in addition, the edges of the inner wall of the outer guide sleeve 420 and the outer wall of the inner guide sleeve 430 are both rounded.

[0167] like Figure 2 , Figure 4 As shown, in some embodiments, the first welding part is located on the end face of the first workpiece 10 to be welded, and the second welding part is located on the end face of the second workpiece 20 to be welded; wherein, the first welding part is a welding rod, and the second welding part is a welding groove; the end of the first welding part away from the first workpiece 10 to be welded is the first welding end, and the end of the guide ring 30 away from the first workpiece 10 to be welded is the first guide end, and the distance between the first guide end and the end face of the first workpiece 10 to be welded is greater than the distance between the first welding end and the end face of the first workpiece 10 to be welded; wherein, the first guide end and the end face of the first workpiece to be welded have a preset distance.

[0168] By setting the first welding part and the second welding part as a fusion structure, the fusion of the first workpiece 10 to be welded and the second workpiece 20 to be welded is achieved. By setting the distance between the first guide end and the end face of the first workpiece 10 to be welded to be greater than the distance between the first welding end and the end face of the first workpiece 10 to be welded, the guide ring 30 provides support for the first workpiece 10 to be welded before welding, protecting the first welding part and keeping it suspended in a state without being damaged.

[0169] It should be noted that, as Figure 2 , Figure 4 As shown, the preset distance between the first guide end and the first welding end is L1.

[0170] In some embodiments, the first welding portion is located on the end face of the first workpiece 10 to be welded, and the second welding portion is located on the end face of the second workpiece 20 to be welded; wherein, the first welding portion is a welding groove, and the second welding portion is a welding rod; the end of the second welding portion away from the second workpiece 20 to be welded is the second welding end, and the end of the guide sleeve 40 away from the second workpiece 20 to be welded is the second guide end, and the distance between the second guide end and the end face of the second workpiece 20 to be welded is greater than the distance between the second welding end and the end face of the second workpiece 20 to be welded; wherein, there is a preset distance between the second guide end and the end face of the second workpiece to be welded.

[0171] By setting the first welding part and the second welding part as a fusion structure, the fusion of the first workpiece 10 to be welded and the second workpiece 20 to be welded is achieved. By setting the distance between the second guide end and the end face of the second workpiece 20 to be welded to be greater than the distance between the second welding end and the end face of the second workpiece 20 to be welded, the guide sleeve 40 provides support for the second workpiece 20 to be welded before welding, protecting the second welding part and keeping it suspended without being damaged.

[0172] In some embodiments, the preset distance is greater than or equal to 3mm.

[0173] By limiting the preset distance to be greater than or equal to 3mm, the guide ring 30 or guide sleeve 40 can play a supporting and protective role, and avoid the guide ring 30 or guide sleeve 40 extending too far, which would cause the first welded part or the second welded part to be damaged because it cannot be suspended.

[0174] Although the present invention has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A welding positioning structure, characterized in that, include: The first part to be welded has a first welding section; The second part to be welded is provided with a second welding part that mates with the first welding part; Multiple guide rings are disposed on the first workpiece to be welded and are arranged circumferentially around the first welding part; as well as Multiple guide sleeves are disposed on the second workpiece to be welded and arranged circumferentially around the second welding part. Each of the multiple guide sleeves corresponds to a multiple of the guide rings. Each guide sleeve is provided with a guide groove that cooperates with the corresponding guide ring.

2. The welding positioning structure according to claim 1, characterized in that, The guide sleeve includes: An outer guide sleeve, one end of which is disposed on the second workpiece to be welded; and An inner guide sleeve is provided at one end on the second workpiece to be welded and located inside the outer guide sleeve, and the guide groove is located between the outer guide sleeve and the inner guide sleeve.

3. The welding positioning structure according to claim 2, characterized in that, The inner wall of the outer guide sleeve is provided with a plurality of outer braces, which are arranged circumferentially around the outer guide sleeve at intervals. The outer wall of the inner guide sleeve is provided with a plurality of inner ribs, which are arranged circumferentially around the inner guide sleeve at intervals, and the plurality of inner ribs correspond one-to-one with the plurality of outer ribs; wherein, the inner ribs and the corresponding outer ribs are spaced apart in the radial direction.

4. The welding positioning structure according to claim 3, characterized in that, The width of the outer and inner braces in the radial direction gradually increases along the axial direction. The width of the outer and inner braces at the end closer to the first weldment in the radial direction is smaller than the width of the outer and inner braces at the end farther from the first weldment in the radial direction.

5. The welding positioning structure according to claim 4, characterized in that, The outer bracing includes an outer inclined surface, which is located on the side of the outer bracing away from the outer guide sleeve; the inner bracing includes an inner inclined surface, which is located on the side of the inner bracing away from the inner guide sleeve. The angle between the outer inclined surface and the axial direction is 2°-5°, and the angle between the inner inclined surface and the axial direction is 2°-5°.

6. The welding positioning structure according to claim 4, characterized in that, Both the outer and inner branches are pyramidal in shape.

7. The welding positioning structure according to any one of claims 1-6, characterized in that, The edge of the guide ring is rounded at the end away from the first workpiece to be welded; the edge of the guide sleeve is rounded at the end away from the second workpiece to be welded.

8. The welding positioning structure according to claim 1, characterized in that, The first welding part is located on the end face of the first workpiece to be welded, and the second welding part is located on the end face of the second workpiece to be welded; Wherein, the first welding part is a welding rod, and the second welding part is a welding groove; the end of the first welding part away from the first workpiece to be welded is the first welding end, and the end of the guide ring away from the first workpiece to be welded is the first guide end; the distance between the first guide end and the end face of the first workpiece to be welded is greater than the distance between the first welding end and the end face of the first workpiece to be welded; wherein, the first guide end and the end face of the first workpiece to be welded have a preset distance.

9. The welding positioning structure according to claim 1, characterized in that, The first welding part is located on the end face of the first workpiece to be welded, and the second welding part is located on the end face of the second workpiece to be welded; Wherein, the first welding part is a welding groove, and the second welding part is a welding rod; the end of the second welding part away from the second workpiece to be welded is the second welding end, and the end of the guide sleeve away from the second workpiece to be welded is the second guide end, and the distance between the second guide end and the end face of the second workpiece to be welded is greater than the distance between the second welding end and the end face of the second workpiece to be welded; wherein, the second guide end and the end face of the second workpiece to be welded have a preset distance.

10. The welding positioning structure according to claim 8 or 9, characterized in that, The preset distance is greater than or equal to 3mm.

Images