Rapid mounting structure for welding head of ultrasonic metal welding machine

Abstract

The utility model discloses an ultrasonic metal welding machine welding head rapid installation structure which comprises a driving air cylinder fixedly connected with a welding equipment body, an ultrasonic triple piece is fixedly installed at the bottom end of the driving air cylinder, and a transducer is fixedly installed on the right side of the ultrasonic triple piece. A mounting base of a cylindrical structure is fixedly mounted on the left side of the ultrasonic triple piece, an ox horn welding head is arranged outside the mounting base, and ultrasonic generating heads are fixedly mounted on the upper side and the lower side of the front end of the ox horn welding head. According to the quick mounting structure for the welding head of the ultrasonic metal welding machine, the ox horn welding head is connected with the mounting base through the mounting handle, and the quick disassembling and assembling mechanism is arranged between the ox horn welding head and the mounting base, that is, after the mounting handle is inserted into the mounting base, the connecting sleeve is rotated, and the connecting sleeve is moved through threaded connection between the first internal thread and the first external thread in the connecting sleeve; and finally, the second internal thread is connected with the second external thread, the purpose of fixing the mounting handle is achieved, and only the connecting sleeve needs to be rotated during disassembly.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrasonic metal welding machines, and particularly relates to a quick installation structure for a welding head of an ultrasonic metal welding machine. Background Technique

[0002] An ultrasonic metal welding machine is a device that uses high-frequency ultrasonic vibration to generate heat energy for welding metal materials. By converting high-frequency electrical signals into ultrasonic energy and conducting it to the welding part through an ultrasonic transducer, local high temperature is generated on the metal surface, thereby realizing the connection of metals;

[0003] During the use of the device, the welding head will have certain losses. Therefore, when the welding head reaches the service life, it needs to be replaced. Since the welding head is fixedly connected to the device by bolts, it is relatively troublesome to replace.

[0004] For example, in the prior art, a Chinese patent with the publication number CN106944738A (application date: May 3, 2017) discloses an ultrasonic welding head, which includes a welding head part. The welding head part includes a welding head end with a polyhedron shape and a receiving part. Among them, the welding head end includes an inner end face adjacent to the receiving part, an outer end face opposite to the inner end face, a top face, a bottom face opposite to the top face, and two side faces. Among them, at least one ultrasonic radiation head is provided on the top face, and a groove is formed on one side of the upper surface of the receiving part adjacent to the inner end face.

[0005] Again, in the prior art, a Chinese patent with the publication number CN107511581A (application date: September 30, 2017) discloses an ultrasonic welding head. By setting a tapered part, the energy loss during ultrasonic welding can be reduced, thereby prolonging the service life of the ultrasonic welding head and avoiding defective welding such as false welding and over-welding in product welding.

[0006] Combined with the above materials, it can be seen that in the prior art, the welding head is generally connected to the device by a bolt fixing method. Therefore, when replacing, it is necessary to repeatedly turn the bolt, resulting in the above-mentioned technical problem of troublesome replacement. Content of the Utility Model

[0007] The purpose of the utility model is to provide a quick installation structure for a welding head of an ultrasonic metal welding machine to solve the problem of troublesome replacement of the welding head proposed in the above background technique.

[0008] To achieve the above purpose, the utility model provides the following technical solution: A quick installation structure for a welding head of an ultrasonic metal welding machine, which includes a driving cylinder fixedly connected to the main body of the welding equipment. The bottom end of the driving cylinder is fixedly installed with an ultrasonic triple unit, and a transducer is fixedly installed on the right side of the ultrasonic triple unit. It also includes:

[0009] A mounting base in a cylindrical structure is fixedly installed on the left side of the ultrasonic triple-piece. A horn-shaped welding head is arranged outside the mounting base. Ultrasonic generating heads are fixedly installed on the upper and lower sides of the front end of the horn-shaped welding head. The horn-shaped welding head and the mounting base form a detachable mounting structure through a mounting handle fixedly installed at its rear end, and a quick-release mechanism is arranged between the mounting handle and the mounting base;

[0010] The height difference between the lowest end of the horn-shaped welding head and the lowest end of the ultrasonic triple-piece is 10 mm, and the total height from the uppermost end to the lowermost end of the horn-shaped welding head is 70 mm.

[0011] Preferably, the quick-release mechanism includes a connection sleeve installed outside the mounting handle, and the connection sleeve is internally provided with a first internal thread and a second internal thread.

[0012] Preferably, the first internal thread is in threaded connection with a first external thread provided at the end of the mounting handle, and the second internal thread is in threaded connection with a second external thread provided on the outer surface of the mounting base.

[0013] Preferably, the connection sleeve is integrally arranged in a stepped structure with a smaller left side and a larger right side.

[0014] Preferably, strip-shaped limiting grooves are provided on the upper and lower sides at the end of the mounting handle, and the limiting grooves are in snap-fit connection with limiting blocks fixedly installed inside the mounting base.

[0015] Preferably, a connecting rod is rotatably installed outside the upper surface of the mounting base, and a fixing block with a convex structure is fixedly installed at the top of the connecting rod.

[0016] Preferably, the convex structure at the lower end of the fixing block is in snap-fit connection with the hole structure on the outer surface of the connection sleeve, and a connecting spring is fixedly installed between the connecting rod and the upper surface of the mounting base.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows: The quick-installation structure of the welding head of this ultrasonic metal welding machine adopts a novel structural design, and the specific content is as follows:

[0018] 1. The horn-shaped welding head is connected between the mounting handle and the mounting base, and a quick-release structure is arranged between the two. That is, after inserting the mounting handle into the mounting base, the connection sleeve is rotated. By using the threaded connection between the first internal thread and the first external thread in the connection sleeve, the connection sleeve moves, and finally the second internal thread and the second external thread are connected to achieve the purpose of fixing the mounting handle. When disassembling, only the connection sleeve needs to be rotated, which is convenient for replacement;

[0019] Further, the ultrasonic generating head in the horn-shaped welding head emits ultrasonic signals through a transducer, so that high-frequency vibrations and heat are generated at the welding position, achieving the purpose of welding. Moreover, the arm of the horn-shaped welding head is longer than that of the traditional welding head, avoiding the situation of collision when the device is too close to the workpiece during welding.

[0020] 2. A limiting groove is opened at the end of the mounting handle. During installation, the position of the horn-shaped welding head is fixed by the correspondence between the limiting groove and the limiting block, avoiding angular deviation during installation.

[0021] Further, a connecting rod is rotatably installed on the upper surface of the mounting base. The elastic pulling action of the connecting spring is used to pull the connecting rod, so that the fixing block at the top of the connecting rod is inserted into the hole of the connecting sleeve to form a clamping effect, thereby preventing the connecting sleeve from loosening due to vibration. Description of the Drawings

[0022] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0023] Figure 2 is a schematic diagram of the structure of the horn-shaped welding head of the present utility model;

[0024] Figure 3 is a schematic sectional view of the mounting base of the present utility model;

[0025] Figure 4 For the present utility model Figure 3 is an enlarged schematic diagram of part A;

[0026] Figure 5 is a schematic diagram of the structure of the limiting groove of the present utility model;

[0027] Figure 6 is a schematic sectional view of the connecting sleeve of the present utility model;

[0028] Figure 7 is a schematic diagram of the structure of the fixing block of the present utility model.

[0029] In the figure: 1. Driving cylinder; 2. Ultrasonic triple unit; 3. Transducer; 4. Mounting base; 5. Horn-shaped welding head; 6. Ultrasonic generating head; 7. Mounting handle; 8. Connecting sleeve; 9. First internal thread; 10. Second internal thread; 11. First external thread; 12. Second external thread; 13. Limiting groove; 14. Limiting block; 15. Connecting rod; 16. Fixing block; 17. Connecting spring. Specific Embodiments

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0031] Embodiment 1: Please refer to Figure 1 , in order to solve the problem of colliding with workpieces during welding of traditional devices, the following technical solutions are provided. The length of the welding head is increased, and specifically disclosed are: a driving cylinder 1 fixedly connected to the main body of the welding equipment, an ultrasonic triple unit 2 fixedly installed at the bottom end of the driving cylinder 1, a transducer 3 fixedly installed on the right side of the ultrasonic triple unit 2, a mounting seat 4 in a cylindrical structure fixedly installed on the left side of the ultrasonic triple unit 2, a horn-shaped welding head 5 arranged outside the mounting seat 4, and ultrasonic generating heads 6 fixedly installed on the upper and lower sides of the front end of the horn-shaped welding head 5. The horn-shaped welding head 5 forms a detachable mounting structure with the mounting seat 4 through a mounting handle 7 fixedly installed at its rear end. The height difference between the lowest end of the horn-shaped welding head 5 and the lowest end of the ultrasonic triple unit 2 is 10 mm, and the total height from the uppermost end to the lowermost end of the horn-shaped welding head 5 is 70 mm.

[0032] When using the device, the driving cylinder 1 works to push the ultrasonic triple unit 2 downward to a position close to the workpiece. Then, the ultrasonic device is turned on. Through the transducer 3, the ultrasonic generating heads 6 outside the horn-shaped welding head 5 emit ultrasonic signals to generate vibrations, so that the welding position vibrates and generates heat, achieving the purpose of welding the workpiece. During this process, since the horn-shaped welding head 5 is lengthened, the lower surface of the ultrasonic triple unit 2 is far from the surface of the workpiece, avoiding the situation of collision.

[0033] Embodiment 2: Please refer to Figures 2 - 6 , in order to solve the problem that the welding head of the traditional device is not easy to replace, the following technical solutions are provided. A quick-release mechanism is set, and specifically disclosed are: a quick-release mechanism is arranged between the mounting handle 7 and the mounting seat 4. The quick-release mechanism includes a connecting sleeve 8 installed outside the mounting handle 7. The inner part of the connecting sleeve 8 is provided with a first internal thread 9 and a second internal thread 10. The first internal thread 9 is threadedly connected with a first external thread 11 arranged at the end of the mounting handle 7, and the second internal thread 10 is threadedly connected with a second external thread 12 arranged on the outer surface of the mounting seat 4. The whole connecting sleeve 8 is arranged in a stepped structure with a smaller left side and a larger right side. Strip-shaped limiting grooves 13 are opened on the upper and lower sides at the end of the mounting handle 7, and the limiting grooves 13 are snap-fitted with limiting blocks 14 fixedly installed inside the mounting seat 4.

[0034] When installing the horn welding head 5, first insert the installation handle 7 at the rear end of the horn welding head 5 into the interior of the mounting seat 4. At this time, it is necessary to ensure that the limiting groove 13 corresponds to the limiting block 14 inside the mounting seat 4 to limit the angle of the horn welding head 5. Then rotate the connecting sleeve 8, and use the thread connection between the first internal thread 9 and the first external thread 11 to move the connecting sleeve 8 towards the position close to the mounting seat 4. Finally, the second internal thread 10 and the second external thread 12 are thread-connected to fix the installation handle 7 and the mounting seat 4. When disassembling and replacing, only need to turn the connecting sleeve 8.

[0035] Embodiment 3: Please refer to Figures 2 - 6 , in order to prevent the quick-release mechanism from loosening due to vibration in this embodiment, the following technical solutions are provided, and specifically disclosed: a connecting rod 15 is rotatably installed outside the upper surface of the mounting seat 4, and a fixing block 16 with a convex structure is fixedly installed at the top of the connecting rod 15. The protruding structure at the lower end of the fixing block 16 is snap-fitted with the hole structure on the outer surface of the connecting sleeve 8, and a connecting spring 17 is fixedly installed between the connecting rod 15 and the upper surface of the mounting seat 4.

[0036] After the horn welding head 5 is installed, use the elastic pulling action of the connecting spring 17 to pull the connecting rod 15, so that the fixing block 16 at the top of the connecting rod 15 is inserted into the hole on the surface of the connecting sleeve 8 to form a snap-fitting structure, restricting the rotation of the connecting sleeve 8 during use and avoiding loosening due to vibration.

[0037] In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0038] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick installation structure for the welding head of an ultrasonic metal welding machine, comprising a driving cylinder (1) fixedly connected to the main body of the welding equipment. The bottom end of the driving cylinder (1) is fixedly installed with an ultrasonic triple unit (2), and a transducer (3) is fixedly installed on the right side of the ultrasonic triple unit (2). It is characterized in that, It further includes: A mounting seat (4) with a cylindrical structure is fixedly installed on the left side of the ultrasonic triple unit (2). A horn-shaped welding head (5) is arranged outside the mounting seat (4). Ultrasonic generating heads (6) are fixedly installed on the upper and lower sides of the front end of the horn-shaped welding head (5). A dismountable installation structure is formed between the horn-shaped welding head (5) and the mounting seat (4) through a mounting handle (7) fixedly installed at its rear end. A quick-release mechanism is arranged between the mounting handle (7) and the mounting seat (4). The height difference between the lowest end of the horn-shaped welding head (5) and the lowest end of the ultrasonic triple unit (2) is 10 mm, and the total height from the uppermost end to the lowermost end of the horn-shaped welding head (5) is 70 mm.

2. The quick installation structure of the welding head of an ultrasonic metal welding machine according to claim 1, characterized in that: The quick-release mechanism includes a connecting sleeve (8) installed outside the mounting handle (7), and a first internal thread (9) and a second internal thread (10) are formed inside the connecting sleeve (8).

3. The quick installation structure of the welding head of an ultrasonic metal welding machine according to claim 2, characterized in that: The first internal thread (9) is threadedly connected to a first external thread (11) arranged at the end of the mounting handle (7), and the second internal thread (10) is threadedly connected to a second external thread (12) arranged on the outer surface of the mounting seat (4).

4. The rapid installation structure of the welding head of an ultrasonic metal welding machine according to claim 3, characterized in that: The connecting sleeve (8) is integrally arranged in a stepped structure with a smaller left side and a larger right side.

5. The quick installation structure of the welding head of an ultrasonic metal welding machine according to claim 3, characterized in that: Strip-shaped limiting grooves (13) are formed on the upper and lower sides of the end of the mounting handle (7), and the limiting grooves (13) are snap-fitted with limiting blocks (14) fixedly installed inside the mounting seat (4).

6. The quick installation structure of the welding head of an ultrasonic metal welding machine according to claim 1, characterized in that: A connecting rod (15) is rotatably installed outside the upper surface of the mounting seat (4), and a fixing block (16) with a protruding structure is fixedly installed at the top of the connecting rod (15).

7. The rapid installation structure of the welding head of an ultrasonic metal welding machine according to claim 6, characterized in that: The protruding structure at the lower end of the fixing block (16) is snap-fitted with a hole structure on the outer surface of the connecting sleeve (8), and a connecting spring (17) is fixedly installed between the connecting rod (15) and the upper surface of the mounting seat (4).

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