Welding head and welding equipment

Abstract

The utility model belongs to the technical field of welding, and particularly relates to a welding head which comprises a welding head body, and a dust removal channel is arranged in the welding head body. The negative pressure opening is formed in the welding head body, communicates with the dust removal channel and is used for enabling the dust removal channel to generate a negative pressure effect; the welding teeth are arranged at the end part of the welding head body; the first dust collection openings are formed in the end, in the first direction, of the welding head body; the second dust collection openings are formed in the peripheral side of the welding head body; the first dust suction port and the second dust suction port are both communicated with the dust removal channel, and the second dust suction port is located above the first dust suction port in the first direction; the welding dust collection device has the advantages that the first dust collection opening can collect dust generated in the welding process at a short distance, the second dust collection opening can collect flying dust in the welding process, and the dust generated in the welding process can be completely collected.

Description

Technical Field

[0001] This utility model belongs to the field of welding technology, and in particular relates to a welding head and welding equipment. Background Technology

[0002] Currently, ultrasonic welding is commonly used in battery manufacturing processes. However, ultrasonic welding generates a large amount of foil dust, which can not only puncture the separator on the foil, causing short circuits in the battery cell, but also cause significant environmental pollution.

[0003] In the existing technology CN218855867U, a welding head and ultrasonic welding machine are described, a dust extraction channel is set on the welding head to extract the dust generated during the welding process. Although this achieves a certain dust removal effect, the dust extraction port is only located on the end face of the welding head, which cannot extract the dust and welding slag that fly during the welding process. As a result, some welding slag and dust will fall into the environment or onto the foil, causing environmental pollution or short circuits in the battery cells. Utility Model Content

[0004] The purpose of this utility model is to provide a welding head to address the aforementioned technical problems.

[0005] In view of this, the present invention provides a welding head, comprising:

[0006] The welding head body has a dust removal channel inside.

[0007] The negative pressure port is located on the welding head body and is connected to the dust removal channel.

[0008] Several welding teeth are provided at the end of the welding head body;

[0009] A plurality of first dust suction ports are disposed on the end of the welding head body along a first direction;

[0010] Several second dust suction ports are provided on the periphery of the welding head body;

[0011] The first and second dust suction ports are both connected to the dust removal channel, and the second dust suction port is located above the first dust suction port along the first direction.

[0012] Furthermore, the height difference between the second suction port and the first suction port in the first direction is H, where H is 3-7mm.

[0013] Furthermore, the welding head body also includes a positive pressure port, which is located on the welding head body and connected to the dust removal channel.

[0014] Furthermore, it also includes:

[0015] The pressure gauge is installed on the welding head body and is used to detect the pressure in the dust removal channel.

[0016] Furthermore, the welding head body also includes:

[0017] The control component is mounted on the welding head body and communicates with the pressure gauge. It is used to select one of the negative pressure port and positive pressure port to maintain communication with the dust removal channel.

[0018] Furthermore, the control components include:

[0019] The valve body has a fluid channel, and the positive pressure port and negative pressure port are located on the valve body and connected to the dust removal channel through the fluid channel.

[0020] A slide bar, which is movably mounted within the valve body;

[0021] The controller is mounted on the valve body and connected to the slide rod;

[0022] The controller is used to control the movement of the slide bar to keep one of the negative pressure port and the positive pressure port connected to the dust removal channel.

[0023] Furthermore, the controller includes:

[0024] An energized coil is mounted on the valve body.

[0025] A reset element is installed between the slide rod and the energized coil;

[0026] The slide bar is made of metal, and an energized coil is used to attract the slide bar to control its movement.

[0027] Furthermore, it also includes fixing components, which include:

[0028] A first housing, on which a first slot is provided;

[0029] The second housing has a second slot.

[0030] The first and second housings are connected and fitted onto the welding head body, the control component is located in the first slot, and the pressure sensor is located in the second slot.

[0031] Furthermore, the shape of the first suction ports is strip-shaped, and the first suction ports are distributed between the welding teeth.

[0032] A welding apparatus comprising a welding head according to any of the above.

[0033] The beneficial effects of this utility model are:

[0034] When the welding head is in operation, it uses a negative pressure port to create negative pressure at the first and second dust suction ports. The first dust suction port is located at the welding teeth on the welding head body, which can remove the dust generated during the welding process at close range and prevent excessive dust from falling to other places. The second dust suction port is located on the periphery of the welding head body and is higher than the first dust suction port. It can remove the dust raised during the welding process and prevent the flying dust generated during welding from falling on the battery cell and causing a short circuit. It effectively achieves comprehensive removal of welding dust. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the structure of this utility model;

[0036] Figure 2 This is a structural cross-sectional view of the present invention;

[0037] Figure 3 This is a schematic diagram of the welded part in this utility model;

[0038] Figure 4 This is a schematic diagram of the structure of the control component controlling the negative pressure port in this utility model.

[0039] Figure 5 This is a schematic diagram of the structure of the control component controlling the positive pressure port in this utility model.

[0040] Figure 6 This is a structural schematic diagram of the fixing component in this utility model;

[0041] The markings in the diagram are as follows:

[0042] 1. Welding head body; 11. Dust removal channel; 12. Negative pressure port; 13. Welding teeth; 14. First dust suction port; 15. Second dust suction port; 16. Positive pressure port; 17. Welding part; 2. Pressure gauge; 3. Control component; 31. Valve body; 32. Fluid channel; 33. Slide rod; 34. Connecting hole; 35. Energizing coil; 36. Reset component; 4. Fixing component; 41. First housing; 42. Second housing; 43. First slot; 44. Second slot; Z, First direction. Detailed Implementation

[0043] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0044] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0045] Example 1:

[0046] This embodiment provides a welding head, including:

[0047] The welding head body 1 has a dust removal channel 11 inside it;

[0048] Negative pressure port 12 is provided on the welding head body 1 and is connected to the dust removal channel 11;

[0049] A plurality of welding teeth 13 are disposed at the end of the welding head body 1;

[0050] A plurality of first dust suction ports 14 are disposed on the end of the welding head body 1 along the first direction;

[0051] A plurality of second dust suction ports 15 are disposed on the periphery of the welding head body 1;

[0052] The first dust suction port 14 and the second dust suction port 15 are both connected to the dust removal channel 11, and the second dust suction port 15 is located above the first dust suction port 14 along the first direction.

[0053] In this technical solution, a welding part 17 is provided on the welding head body 1. The welding part 17 is integrally connected to the welding head body 1, and the welding part 17 is an inverted "convex" shaped structure. Several welding teeth 13 are provided on the end face of the welding part 17 for welding heated materials. Several first dust suction ports 14 are provided on the end face of the welding part 17 along the first direction Z. Several second dust suction ports 15 can be provided on the periphery of the welding part 17 and located above the first dust suction ports 14 along the first direction Z, or they can be provided on the periphery of the welding head body 1. The negative pressure port 12 is provided on the welding head body 1 and is connected to the first dust suction ports 14 and the second dust suction ports 15 through the dust removal channel 11 inside the welding head body 1.

[0054] The negative pressure port 12 is connected to an external negative pressure mechanism. The welding teeth 13 act on the welding material. When the welding head is working, the negative pressure mechanism creates a negative pressure effect on the first dust suction port 14 and the second dust suction port 15 through the negative pressure port 12. The first dust suction port 14 can remove the dust generated during the welding process at close range, preventing too much dust from falling to other places. The second dust suction port 15 is higher than the first dust suction port 14, so it can remove the dust that is raised, preventing the welding dust from falling on the battery cell and causing a short circuit in the battery cell. This effectively achieves comprehensive removal of welding dust.

[0055] Furthermore, the height difference between the second suction port 15 and the first suction port 14 in the first direction Z is H, where H is 3-7mm. By reasonably limiting the height difference H between the first suction port 14 and the second suction port 15 in the first direction, the raised dust can be effectively removed, thus improving the dust collection effect.

[0056] Furthermore, several welding teeth 13 are arranged in a linear array. Through this structural design, when the welding head body 1 acts on the welding area, it can ensure that the ultrasonic vibration energy can be evenly distributed on the welding area, thereby effectively enhancing the heat transfer during the welding process and improving welding efficiency and weld quality.

[0057] Furthermore, the first suction ports 14 are strip-shaped and located between the welding teeth. By designing the first suction ports 14 as strips, compared to round suction ports, the strip-shaped suction ports have a larger area, making it less likely for large welding slag to clog at the suction ports. In addition, due to the arrangement of welding teeth 13 on the welding head body 1, if the area of ​​the round suction ports were increased, the round suction ports would occupy the arrangement area of ​​the welding teeth 13, which might affect the welding effect of the welding head body 1 on the parts to be welded. The strip-shaped suction ports can avoid the above problems by extending the length of the suction ports and arranging the suction ports between the welding teeth.

[0058] Specifically, the strip-shaped first suction port 14 can be rectangular, annular, or other suction port shapes that conform to the strip shape.

[0059] Example 2:

[0060] This embodiment provides a welding head that, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0061] Furthermore, the welding head body 1 also includes a positive pressure port 16, which is disposed on the welding head body 1 and connected to the dust removal channel 11.

[0062] In this technical solution, the external gas supply mechanism can supply gas into the dust removal channel 11 through the positive pressure port 16 to clean the first dust suction port 14 and the second dust suction port 15, so as to avoid the welding teeth 13 or dust from clogging the first dust suction port 14 and the second dust suction port 15.

[0063] Furthermore, it also includes a pressure gauge 2, which is installed on the welding head body 1 and is used to detect the pressure in the dust removal channel 11.

[0064] A pressure gauge 2 is also provided on the welding head body 1. The pressure gauge 2 is used to detect the pressure of the dust removal channel 11. When the first dust suction port 14 or the second dust suction port 15 is blocked during the welding process, the pressure of the dust removal channel 11 will change. The value of the pressure gauge 2 will be different from the normal situation and an alarm will be issued, thereby reminding the staff to clean the first dust suction port 14 and the second dust suction port 15 in time through the positive pressure port 16.

[0065] Example 3:

[0066] This embodiment provides a welding head that, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0067] Furthermore, the welding head body 1 also includes:

[0068] Control component 3 is installed on the welding head body 1 and is connected to the pressure gauge 2 for selecting one of the negative pressure port 12 and the positive pressure port 16 to maintain communication with the dust removal channel 11.

[0069] Furthermore, control component 3 includes:

[0070] The valve body 31 has a fluid channel 32 inside. The positive pressure port 16 and the negative pressure port 12 are located on the valve body 31 and are connected to the dust removal channel 11 through the fluid channel 32.

[0071] The slide rod 33 is movably installed inside the valve body 31;

[0072] The controller is mounted on the valve body 31 and connected to the slide rod 33;

[0073] The controller is used to control the movement of the slide bar 33 to keep one of the negative pressure port 12 and the positive pressure port 16 connected to the dust removal channel 11.

[0074] In this technical solution, the positive pressure port 16 and the negative pressure port 12 are provided on the valve body 31. The valve body 31 is also provided with a connecting hole 34 that communicates with the dust removal channel 11. The slide rod 33 is provided with a first partition and a second partition, and a fluid channel 32 for gas flow is formed between the first partition and the second partition.

[0075] When the slider 33 is in the initial position, such as Figure 4 As shown, the negative pressure port 12 is connected to the connecting hole 34 through the fluid channel 32, thereby connecting the negative pressure port 12 to the dust removal channel 11, so that the first dust suction port 14 and the second dust suction port 15 can remove the dust generated during welding.

[0076] When either the first suction port 14 or the second suction port 15 becomes blocked, the controller receives a signal and controls the slide bar 33 to move, such as... Figure 5 As shown, the positive pressure port 16 is connected to the connecting hole 34 through the fluid channel 32, thereby connecting the positive pressure port 16 to the dust removal channel 11. Then, gas is delivered into the dust removal channel 11 through the positive pressure port 16 to blow the dust removal channel 11. At the same time, the staff cooperates to clean the first dust suction port 14 and the second dust suction port 15, thereby effectively solving the problem of blockage of the first dust suction port 14 and the second dust suction port 15.

[0077] Example 4:

[0078] This embodiment provides a welding head that, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0079] Furthermore, the controller includes:

[0080] An energized coil 35 is mounted on the valve body 31.

[0081] Reset component 36 is installed between slide bar 33 and energized coil 35;

[0082] The slide bar 33 is made of metal, and the energized coil 35 is used to attract the slide bar 33 to control its movement.

[0083] In this technical solution, the controller can consist of an energized coil 35 and a reset element 36. The energized coil 35 is mounted on the valve body 31 and is communicatively connected to the pressure gauge 2. The reset element 36 is a spring sleeved on the slide rod 33 and axially abuts against the slide rod 33 and the energized coil 35. When the pressure gauge 2 detects an abnormal pressure in the dust removal channel 11, the energized coil 35 is energized, attracting the slide rod 33, causing the slide rod 33 to move and the spring to be compressed, keeping the positive pressure port 16 connected to the connecting hole 34, thereby enabling the blowing of the first dust suction port 14 and the second dust suction port 15. After the blowing is completed, the energized coil 35 is de-energized, the slide rod 33 is no longer attracted, the spring resets, pushing the slide rod 33 back to its initial position, keeping the negative pressure port 12 connected to the connecting hole 34, thereby achieving the dust removal function. It is worth noting that the controller can also be a cylinder or an electric cylinder, as long as it can drive the slide rod 33 to move and reset within the valve body 31.

[0084] Example 5:

[0085] This embodiment provides a welding head that, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0086] Furthermore, it also includes a fixing component 4, which includes:

[0087] A first housing 41 is provided with a first slot 43;

[0088] The second housing 42 is provided with a second slot 44;

[0089] The first housing 41 and the second housing 42 are connected and sleeved on the welding head body 1, the control component 3 is located in the first slot 43, and the pressure sensor 2 is located in the second slot 44.

[0090] In this technical solution, after the first housing 41 and the second housing 42 are fixed to the welding head body 1, they are connected together by bolts. The control component 3 and the pressure gauge 2 are located in the first slot 43 and the second slot 44, respectively. Through this structural design, the control component 3 and the pressure gauge 2 can be limited and stabilized using the first slot 43 and the second slot 44, reducing the vibration generated by the control component 3 and the pressure gauge 2 during welding head operation and lowering noise.

[0091] Example 6:

[0092] This embodiment provides a welding device, including a welding head from any one of the embodiments 1-5 above.

[0093] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A welding head, characterized in that, include: The welding head body (1) has a dust removal channel (11) inside. Negative pressure port (12), the negative pressure port (12) is provided on the welding head body and is connected to the dust removal channel (11); A plurality of welding teeth (13) are disposed at the end of the welding head body (1); A plurality of first dust suction ports (14) are disposed on the end of the welding head body (1) along the first direction (Z); A plurality of second dust suction ports (15) are provided on the periphery of the welding head body (1); The first dust inlet (14) and the second dust inlet (15) are both connected to the dust removal channel (11), and the second dust inlet (15) is located above the first dust inlet (14) along the first direction (Z).

2. The welding head according to claim 1, characterized in that, The height difference between the second suction port (15) and the first suction port (14) in the first direction (Z) is H, where H is 3-7mm.

3. The welding head according to claim 1, characterized in that, The welding head body (1) also includes a positive pressure port (16), which is disposed on the welding head body (1) and connected to the dust removal channel (11).

4. The welding head according to claim 3, characterized in that, Also includes: Pressure gauge (2), which is installed on the welding head body (1), is used to detect the pressure in the dust removal channel (11).

5. The welding head according to claim 4, characterized in that, The welding head body (1) also includes: A control component (3) is installed on the welding head body (1) and is communicatively connected to the pressure gauge (2) for selecting and controlling one of the negative pressure port (12) and the positive pressure port (16) to maintain communication with the dust removal channel (11).

6. The welding head according to claim 5, characterized in that, The control component (3) includes: The valve body (31) has a fluid channel (32) inside. The positive pressure port (16) and the negative pressure port (12) are located on the valve body (31) and are connected to the dust removal channel (11) through the fluid channel (32). A slide rod (33) is movably mounted inside the valve body (31); A controller, which is mounted on the valve body (31) and connected to the slide rod (33); The controller is used to control the movement of the slide bar (33) to control one of the negative pressure port (12) and the positive pressure port (16) to remain in communication with the dust removal channel (11).

7. The welding head according to claim 6, characterized in that, The controller includes: An energized coil (35) is mounted on the valve body (31); A reset element (36) is installed between the slide rod (33) and the energized coil (35); The slide bar (33) is made of metal, and the energized coil (35) is used to attract the slide bar (33) to control its movement.

8. The welding head according to claim 5, characterized in that, It also includes a fixing component (4), which includes: A first housing (41) is provided with a first slot (43); The second housing (42) is provided with a second slot (44); The first housing (41) and the second housing (42) are connected and sleeved on the welding head body (1), the control component (3) is located in the first slot (43), and the pressure sensor (2) is located in the second slot (44).

9. The welding head according to claim 1, characterized in that, The first suction ports (14) are strip-shaped and are distributed between the welding teeth (13).

10. A welding device, characterized in that, The welding head includes any one of claims 1-9 above.

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