Welding device

Abstract

The invention discloses a welding device. The welding device comprises a thin film and an ultrasonic welding machine. The ultrasonic welding machine is used for welding the first part and the second part of the product together. The ultrasonic welding machine comprises an ultrasonic welding head. When the first component and the second component are welded, the thin film is pressed against the product by the ultrasonic welding head and covers a welding area and a non-welding area of the product, and the thin film is used for absorbing vibration energy located in the non-welding area so as to prevent the vibration energy from being concentrated to the welding area of the product. Therefore, the welding area of the product can be effectively prevented from being ablated, and the welding quality of the product is improved.

Description

Technical Field

[0001] The invention relates to a welding device, in particular to an ultrasonic welding device for welding a first component and a second component of a product together. Background Art

[0002] In the prior art, it is usually necessary to install a dustproof end cap on the port of the connector housing. In order to prevent the end cap from detaching from the connector housing, it is sometimes necessary to weld the end cap to the connector housing using an ultrasonic welding process. The welding area of ​​the connector housing and the end cap is usually their annular end faces, while the cavity area in the connector housing and the end cap is a non-welding area. During welding, the ultrasonic welding head will cover the welding area and non-welding area of ​​the connector housing and the end cap, which causes the vibration energy generated by the ultrasonic welding head to be almost completely transmitted to the welding area of ​​the connector housing and the end cap, which will cause the welding area of ​​the connector housing and the end cap to be burned, seriously reducing the welding quality. Summary of the invention

[0003] The purpose of the present invention is to solve at least one aspect of the above-mentioned problems and defects in the prior art.

[0004] According to one aspect of the present invention, a welding device is provided. The welding device comprises: a film and an ultrasonic welding machine. The ultrasonic welding machine is used to weld a first component and a second component of a product together. The ultrasonic welding machine comprises an ultrasonic welding head. When welding the first and second components, the film is pressed against the product by the ultrasonic welding head and covers the welding area and non-welding area of ​​the product, and is used to absorb the vibration energy in the non-welding area to prevent the vibration energy from being concentrated in the welding area of ​​the product.

[0005] According to an exemplary embodiment of the present invention, the welding area corresponds to the annular welding surface of the product, and the non-welding area corresponds to the hollow inner cavity of the product.

[0006] According to another exemplary embodiment of the present invention, the product is a connector housing assembly, the second component is a connector housing, and the first component is an end cap fitted onto one end of the connector housing.

[0007] According to another exemplary embodiment of the present invention, the welding device further comprises: a film conveying device for conveying the film onto the product.

[0008] According to another exemplary embodiment of the present invention, the film conveying device includes: a supply reel on which the film is wound; a recovery reel for recovering used film; and a tensioning device arranged between the supply reel and the recovery reel, the tensioning device being used to stretch a section of film into a flat state so that the stretched section of film is suitable for abutting against the end surface of the product, and when welding the first and second components, the stretched section of film is pressed against the end surface of the product by the ultrasonic welding head and covers the welding area and non-welding area of ​​the product.

[0009] According to another exemplary embodiment of the present invention, the tensioning device includes: a pair of first brackets; a first tensioning roller, both ends of which are rotatably mounted on the pair of first brackets; a pair of second brackets, spaced apart and opposite to the pair of first brackets; and a second tensioning roller, both ends of which are rotatably mounted on the pair of second brackets, and the section of film is tensioned between the first tensioning roller and the second tensioning roller.

[0010] According to another exemplary embodiment of the present invention, the film conveying device also includes: a first mounting frame, on which the supply reel is rotatably mounted; a second mounting frame, on which the recovery reel is rotatably mounted; and a driving device, mounted on the second mounting frame, for driving the recovery reel to rotate.

[0011] According to another exemplary embodiment of the present invention, the driving device includes: a motor fixed to the second mounting frame; a first pulley connected to the output shaft of the motor; a second pulley connected to the rotating shaft of the recovery reel; and a transmission belt connected between the first pulley and the second pulley.

[0012] According to another exemplary embodiment of the present invention, the film conveying device also includes: a frame for fixing the first mounting frame, the second mounting frame, the first bracket and the second bracket, the first mounting frame and the second mounting frame are located above the frame, and the first bracket and the second bracket are located below the frame.

[0013] According to another exemplary embodiment of the present invention, the welding device further comprises: a clamping device for clamping and fixing the product.

[0014] According to another exemplary embodiment of the present invention, the clamping device includes: a positioning block, on which is formed a positioning slot suitable for positioning the product and a pair of sockets connected to the positioning slot; and a pair of clamping cylinders, respectively arranged on both sides of the positioning block, the telescopic rods of the pair of clamping cylinders respectively extending into the pair of sockets, for clamping the product inserted into the positioning slot from both sides.

[0015] According to another exemplary embodiment of the present invention, a row of positioning slots is formed on the positioning block for positioning a plurality of products simultaneously.

[0016] According to another exemplary embodiment of the present invention, the welding device further includes: a moving device for moving the positioning block along a predetermined direction to sequentially move the plurality of products positioned in the positioning block to a welding position aligned with the ultrasonic horn.

[0017] According to another exemplary embodiment of the present invention, the moving device includes: a rack fixed to the positioning block; a gear meshing with the rack; and a servo motor connected to the gear and used to drive the gear to rotate, and when the gear rotates, the rack drives the positioning block to move in a predetermined direction.

[0018] In the aforementioned exemplary embodiments of the present invention, the film covers the welding area and the non-welding area of ​​the product, so that the vibration energy in the non-welding area is absorbed by the film and will not be transmitted to the welding area of ​​the product, thereby effectively preventing the welding area of ​​the product from being burned and improving the welding quality of the product.

[0019] Other objects and advantages of the present invention will become apparent from the following description of the present invention with reference to the accompanying drawings, which will help to provide a comprehensive understanding of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic plan view showing a welding device according to an exemplary embodiment of the present invention;

[0021] Figure 2 A schematic diagram showing a welding device according to an exemplary embodiment of the present invention;

[0022] Figure 3 A schematic diagram showing a coverage area of ​​a film according to an example of the present invention and a welding area and a non-welding area of ​​a welded product;

[0023] Figure 4 A three-dimensional schematic diagram showing a film conveying device of a welding device according to an exemplary embodiment of the present invention;

[0024] Figure 5 A schematic plan view showing a film conveying device of a welding device according to an exemplary embodiment of the present invention, wherein the conveyed film is shown;

[0025] Figure 6A schematic perspective view showing a clamping device of a welding device according to an exemplary embodiment of the present invention, wherein a first component and a second component of a product are preassembled together;

[0026] Figure 7 A schematic three-dimensional diagram showing a clamping device of a welding device according to an exemplary embodiment of the present invention, wherein a first component of a product has not been pre-assembled onto a second component. DETAILED DESCRIPTION

[0027] The technical solution of the present invention is further specifically described below by examples and in conjunction with the accompanying drawings. In the specification, the same or similar reference numerals indicate the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the overall inventive concept of the present invention and should not be construed as a limitation of the present invention.

[0028] In addition, in the detailed description below, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of the disclosed embodiments. However, it is apparent that one or more embodiments may be implemented without these specific details. In other cases, known structures and devices are embodied in a schematic manner to simplify the accompanying drawings.

[0029] According to an overall technical concept of the present invention, a welding device is provided. The welding device includes: a film and an ultrasonic welding machine. The ultrasonic welding machine is used to weld a first component and a second component of a product together. The ultrasonic welding machine includes an ultrasonic welding head. When welding the first and second components, the film is pressed against the product by the ultrasonic welding head and covers the welding area and non-welding area of ​​the product, and is used to absorb the vibration energy in the non-welding area to prevent the vibration energy from being concentrated in the welding area of ​​the product.

[0030] Figure 1 A schematic plan view showing a welding device according to an exemplary embodiment of the present invention; Figure 2 A schematic diagram showing a welding device according to an exemplary embodiment of the present invention; Figure 3 A schematic diagram showing a coverage area of ​​a film according to an example of the present invention and a welded area 10a and a non-welded area 10b of a welded product 10.

[0031] like Figures 1 to 3As shown, in an exemplary embodiment of the present invention, a welding device is disclosed. The welding device includes: a film 3 and an ultrasonic welding machine 2. The ultrasonic welding machine 2 is used to weld the first component 11 and the second component 12 of the product 10 together. The ultrasonic welding machine 2 includes an ultrasonic welding head 21. When welding the first and second components 11, 12, the film 3 is pressed against the product 10 by the ultrasonic welding head 21 and covers the welding area 10a and the non-welding area 10b of the product 10, and is used to absorb the vibration energy located in the non-welding area 10b to prevent the vibration energy from being concentrated on the welding area 10a of the product 10.

[0032] like Figures 1 to 3 As shown, in the illustrated embodiment, the film 3 may be a common insulating film, and the product 10 may be a plastic product, such as an injection molded product.

[0033] Figure 4 A three-dimensional schematic diagram showing a film conveying device of a welding device according to an exemplary embodiment of the present invention; Figure 5 A schematic plan view showing a film conveying device of a welding device according to an exemplary embodiment of the present invention, wherein a film 3 being conveyed is shown; Figure 6 A schematic perspective view showing a clamping device of a welding device according to an exemplary embodiment of the present invention, wherein a first component 11 and a second component 12 of a product 10 are preassembled together; Figure 7 A schematic three-dimensional diagram of a clamping device of a welding device according to an exemplary embodiment of the present invention is shown, wherein the first component 11 of the product 10 has not been pre-assembled onto the second component 12 .

[0034] like Figures 1 to 7 As shown, in the illustrated embodiment, the welding area 10 a of the product 10 corresponds to the annular welding surface 101 of the product 10 , and the non-welding area 10 b of the product 10 corresponds to the hollow inner cavity 102 of the product 10 .

[0035] like Figures 1 to 7 As shown, in the illustrated embodiment, the product 10 may be a connector housing assembly, the second component 12 is a connector housing, and the first component 11 is an end cap mounted on one end of the connector housing.

[0036] like Figures 1 to 7 As shown, in the illustrated embodiment, the welding device further comprises a film conveying device 30 , and the film conveying device 30 is used to convey the film 3 onto the product 10 .

[0037] like Figures 1 to 7As shown, in the illustrated embodiment, the film conveying device 30 includes: a supply reel 31, a recovery reel 32 and a tensioning device. The film 3 is wound on the supply reel 31. The recovery reel 32 is used to recover the used film 3. The tensioning device is arranged between the supply reel 31 and the recovery reel 32. The tensioning device is used to tension a section of the film 3 into a flat state, so that the tensioned section of the film 3 is suitable for abutting against the end surface 10c of the product 10.

[0038] like Figures 1 to 7 As shown, in the illustrated embodiment, when welding the first and second components 11 , 12 , a tensioned section of film 3 is pressed against the end surface 10 c of the product 10 by the ultrasonic horn 21 and covers the welding area 10 a and the non-welding area 10 b of the product 10 .

[0039] like Figures 1 to 7 As shown, in the illustrated embodiment, the tensioning device includes: a pair of first brackets 34a, a first tensioning roller 35a, a pair of second brackets 34b and a second tensioning roller 35b. The two ends of the first tensioning roller 35a are rotatably mounted on the pair of first brackets 34a. The pair of second brackets 34b are spaced and opposite to the pair of first brackets 34a. The two ends of the second tensioning roller 35b are rotatably mounted on the pair of second brackets 34b. A section of film 3 is tensioned between the first tensioning roller 35a and the second tensioning roller 35b.

[0040] like Figures 1 to 7 As shown, in the illustrated embodiment, the film conveying device 30 further includes: a first mounting frame 31a, a second mounting frame 32a and a driving device 36. The supply reel 31 is rotatably mounted on the first mounting frame 31a. The recovery reel 32 is rotatably mounted on the second mounting frame 32a. The driving device 36 is mounted on the second mounting frame 32a and is used to drive the recovery reel 32 to rotate.

[0041] like Figures 1 to 7 As shown, in the illustrated embodiment, the driving device 36 includes: a motor 360, a first pulley 36a, a second pulley 36b and a transmission belt 36c. The motor 360 is fixed to the second mounting frame 32a. The first pulley 36a is connected to the output shaft of the motor 360. The second pulley 36b is connected to the rotating shaft of the recovery reel 32. The transmission belt 36c is connected between the first pulley 36a and the second pulley 36b.

[0042] like Figures 1 to 7 As shown, in the illustrated embodiment, the film conveying device 30 further includes a frame 33, and the frame 33 is used to fix the first mounting frame 31a, the second mounting frame 32a, the first bracket 34a and the second bracket 34b. The first mounting frame 31a and the second mounting frame 32a are located above the frame 33, and the first bracket 34a and the second bracket 34b are located below the frame 33.

[0043] like Figures 1 to 7 As shown, in the illustrated embodiment, the welding device further comprises a clamping device, and the clamping device is used to clamp and fix the product 10.

[0044] like Figures 1 to 7 As shown, in the illustrated embodiment, the clamping device includes: a positioning block 4 and a pair of clamping cylinders (not shown). A positioning slot 401 suitable for positioning the product 10 and a pair of plug holes 402 connected to the positioning slot 401 are formed on the positioning block 4. The pair of clamping cylinders are respectively arranged on both sides of the positioning block 4. The telescopic rods of the pair of clamping cylinders are respectively extended into the pair of plug holes 402, and are used to clamp the product 10 inserted into the positioning slot 401 from both sides.

[0045] like Figures 1 to 7 As shown, in the illustrated embodiment, a row of positioning slots 401 is formed on the positioning block 4 for positioning a plurality of products 10 at the same time.

[0046] like Figures 1 to 7 As shown, in the illustrated embodiment, the welding device further includes a moving device for moving the positioning block 4 along a predetermined direction to sequentially move the plurality of products 10 positioned in the positioning block 4 to a welding position aligned with the ultrasonic welding head 21 .

[0047] like Figures 1 to 7 As shown, in the illustrated embodiment, the moving device includes: a rack 41, a gear and a servo motor. The rack 41 is fixed to the positioning block 4. The gear is meshed with the rack. The servo motor is connected to the gear to drive the gear to rotate. When the gear rotates, the rack 41 drives the positioning block 4 to move in a predetermined direction.

[0048] Those skilled in the art will appreciate that the embodiments described above are exemplary and may be improved upon by those skilled in the art. The structures described in the various embodiments may be freely combined without causing any conflicts in structure or principle, and these changes should fall within the scope of protection of the present invention.

[0049] Although the present invention has been described in conjunction with the accompanying drawings, the embodiments disclosed in the accompanying drawings are intended to exemplify the preferred implementations of the present invention and should not be construed as limiting the present invention.

[0050] Although some embodiments of the general inventive concept have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the general inventive concept, the scope of which is defined in the claims and their equivalents.

[0051] It should be noted that the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. In addition, any element reference signs in the claims shall not be construed as limiting the scope of the present invention.

Claims

1. A welding device, characterized in that: include: film (3); and An ultrasonic welding machine (2) comprises an ultrasonic welding head (21) for welding a first component (11) and a second component (12) of a product (10) together. When welding the first and second components (11, 12), the film (3) is pressed against the product (10) by the ultrasonic horn (21) and covers the welding area (10a) and non-welding area (10b) of the product (10), so as to absorb the vibration energy located in the non-welding area (10b) to prevent the vibration energy from being concentrated in the welding area (10a) of the product (10).

2. The welding device according to claim 1, characterized in that: The welding area (10a) corresponds to the annular welding surface (101) of the product (10), and the non-welding area (10b) corresponds to the hollow inner cavity (102) of the product (10).

3. The welding device according to claim 2, characterized in that: The product (10) is a connector housing assembly, the second component (12) is a connector housing, and the first component (11) is an end cap fitted onto one end of the connector housing.

4. The welding device according to claim 1, characterized in that: Also includes: A film conveying device (30) is used to convey the film (3) onto the product (10).

5. The welding device according to claim 4, characterized in that: The film conveying device (30) comprises: a supply reel (31) on which the film (3) is wound; A recovery reel (32) for recovering the used film (3); and A tensioning device is arranged between the supply reel (31) and the recovery reel (32), The tensioning device is used to tension a section of film (3) into a flat state, so that the tensioned section of film (3) is suitable for being pressed against the end surface (10c) of the product (10); when welding the first and second components (11, 12), the tensioned section of film (3) is pressed against the end surface (10c) of the product (10) by the ultrasonic welding head (21) and covers the welding area (10a) and non-welding area (10b) of the product (10).

6. The welding device according to claim 5, characterized in that: The tensioning device comprises: a pair of first brackets (34a); A first tensioning roller (35a), both ends of which are rotatably mounted on the pair of first brackets (34a); a pair of second brackets (34b) spaced apart from and opposite to the pair of first brackets (34a); and The second tensioning roller (35b) has two ends rotatably mounted on the pair of second brackets (34b), The length of film (3) is tensioned between the first tensioning roller (35a) and the second tensioning roller (35b).

7. The welding device according to claim 6, characterized in that: The film conveying device (30) further comprises: A first mounting frame (31a), wherein the supply reel (31) is rotatably mounted on the first mounting frame (31a); a second mounting frame (32a) on which the recovery reel (32) is rotatably mounted; and A driving device (36) is mounted on the second mounting frame (32a) and is used to drive the recovery reel (32) to rotate.

8. The welding device according to claim 7, characterized in that: The driving device (36) comprises: A motor (360) is fixed to the second mounting frame (32a); A first pulley (36a) connected to an output shaft of the motor (360); A second pulley (36b) connected to the rotation axis of the recovery reel (32); and A transmission belt (36c) is connected between the first pulley (36a) and the second pulley (36b).

9. The welding device according to claim 7, characterized in that: The film conveying device (30) further comprises: a frame (33) for fixing the first mounting frame (31a), the second mounting frame (32a), the first bracket (34a) and the second bracket (34b), The first mounting frame (31a) and the second mounting frame (32a) are located above the frame (33), and the first bracket (34a) and the second bracket (34b) are located below the frame (33).

10. The welding device according to claim 1, characterized in that: Also includes: A clamping device is used to clamp and fix the product (10).

11. The welding device according to claim 10, characterized in that: The clamping device comprises: a positioning block (4) having a positioning slot (401) suitable for positioning the product (10) and a pair of insertion holes (402) connected to the positioning slot (401); and A pair of clamping cylinders are respectively arranged on both sides of the positioning block (4). The telescopic rods of the pair of clamping cylinders extend into the pair of insertion holes (402) respectively, and are used to clamp the product (10) inserted into the positioning slot (401) from both sides.

12. The welding device according to claim 11, characterized in that: A row of positioning slots (401) is formed on the positioning block (4) for positioning a plurality of products (10) at the same time.

13. The welding device according to claim 12, characterized in that: Also includes: A moving device is used to move the positioning block (4) along a predetermined direction so as to sequentially move a plurality of products (10) positioned in the positioning block (4) to a welding position aligned with the ultrasonic welding head (21).

14. The welding device according to claim 13, characterized in that: The mobile device comprises: A rack (41) fixed to the positioning block (4); a gear meshing with the rack; and A servo motor is connected to the gear and is used to drive the gear to rotate. When the gear rotates, the rack (41) drives the positioning block (4) to move along a predetermined direction.

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