Port structure of welding hold-down mechanism

Abstract

The utility model discloses a port structure of a welding hold-down mechanism, which comprises an outer layer pressure nozzle body, a maze groove is arranged on an abutting port of the outer layer pressure nozzle body, a groove channel, a groove channel inlet and a groove channel outlet of the maze groove are communicated with one another, the groove channel inlet is communicated with the outside, and the groove channel outlet is communicated with an inner cavity of the outer layer pressure nozzle body. The projection outline of the abutting end opening is a circular ring, the labyrinth groove is a straight groove, and the length direction of the labyrinth groove is parallel to the diameter of the abutting end opening. The channel inlets are formed in the two ends of the straight groove, and the channel outlets are formed in the side wall, close to the circle center of the circular ring, of the straight groove; and the other side wall of the straight groove is a baffle plate. A baffle is arranged on the side, away from the inner cavity of the outer layer pressing nozzle body, of the channel outlet. And the channel inlet and the channel outlet are chamfered.

Description

Technical Field

[0001] The present application relates to the technical field of welding devices, and in particular to a port structure of a welding pressing mechanism. Background Art

[0002] During the welding process, in order for two parts to be welded with high quality, they generally need to be aligned and pressed or clamped. Welding in some high-end welding fields also requires the introduction of welding shielding gas to play a protective role.

[0003] In the prior art, a transfer plate welding clamping device and a transfer plate welding system are disclosed in the patent document with patent application number CN202320908383.7. The inner copper nozzle and the lower port of the outer copper nozzle in the inner copper nozzle assembly are both smooth closed structures. After the ports are against the end face of the new energy module, it is easy to form a closed structure. This traditional pressure nozzle has many disadvantages:

[0004] During the welding process, welding smoke, welding dust and welding slag will be generated in the inner cavity of the nozzle, and the welding smoke, welding dust and welding slag will also diffuse in the dust extraction shield of the cleaning device. Since the inner cavity of the nozzle is closed, even if the cleaning device has an exhaust fan, it cannot pump air to extract the welding smoke, welding dust and welding slag;

[0005] Due to the obstruction of welding smoke and welding dust, welding smoke, welding dust and welding slag will also act as a medium to affect the laser of the laser welding galvanometer to pass through the welding smoke and welding dust, and it is impossible to reach the welding point at the predetermined power to weld the parts;

[0006] Due to the welding smoke, the CCD camera cannot clearly capture the welding points and observe the welding quality;

[0007] Because the nozzle port is against the end face of the new energy module, it is easy to form a closed structure. The welding shielding gas in the nozzle is trapped in the inner cavity of the nozzle and cannot flow to the surrounding parts of the welding point, such as the explosion-proof plate, to provide complete protection. Utility Model Content

[0008] The utility model mainly aims at the above problems and proposes a port structure of a welding pressing mechanism, aiming to solve the technical problems in the background technology.

[0009] To achieve the above-mentioned purpose, the utility model provides a port structure of a welding pressing mechanism, including an outer layer pressing nozzle body, the holding port of the outer layer pressing nozzle body is provided with a labyrinth groove, the groove, groove entrance and groove outlet of the labyrinth groove are connected to each other, and the groove entrance is connected to the outside world, and the groove outlet is connected to the inner cavity of the outer layer pressing nozzle body.

[0010] Furthermore, the projection contour of the supporting port is a circular ring, the labyrinth groove is a straight groove, and the length direction of the labyrinth groove is parallel to the diameter of the supporting port; both ends of the straight groove are the groove entrances, and the groove exit is arranged on the side wall of the straight groove adjacent to the center of the circular ring; the other side wall of the straight groove is a baffle.

[0011] Furthermore, a baffle is provided on the side of the channel outlet facing away from the inner cavity of the outer layer nozzle body.

[0012] Furthermore, the groove inlet and the groove outlet are chamfered.

[0013] Compared with the prior art, the port structure of a welding pressing mechanism provided by the utility model can solve the problem that after the pressure nozzle port in the prior art is held against the end face of the new energy module, the inner cavity is closed and the welding smoke, welding dust and slag cannot be extracted by setting a labyrinth groove 2. It solves the problem that the welding shielding gas cannot flow to the surrounding parts that need to be protected, and can greatly improve the welding quality and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of a port structure of a welding holding mechanism of the present application installed in a clamping assembly.

[0015] Figure 2 This is a schematic diagram of the outer layer pressure nozzle body structure of a port structure of a welding pressure holding mechanism of the present application.

[0016] Figure 3 for Figure 2 Enlarged view of point A.

[0017] Figure 4 The present invention is a schematic structural diagram of an embodiment that was eliminated during the inventor's research and development of a port structure of a welding pressing mechanism.

[0018] The reference numerals shown in the figure are: 1, outer layer nozzle body; 110, abutment port; 111, baffle; 120, inner cavity; 2, labyrinth groove; 210, groove; 220, groove entrance; 230, groove exit; 240, chamfer. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the protection scope of the utility model. It is understandable that the drawings are only provided for reference and illustration, and are not used to limit the utility model. The connection relationship shown in the drawings is only for the convenience of clear description and does not limit the connection method.

[0020] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to another component, or there may be an intermediate component at the same time. Unless otherwise defined, all technical and scientific terms used in this document have the same meaning as those generally understood by technicians in the technical field of the present invention. It should also be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The terms used in this document in the specification of the present utility model are only for the purpose of describing specific embodiments, and are not intended to limit the present utility model.

[0021] It should also be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or position relationship, are based on the orientation or position 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 on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0022] Please refer to Figure 1 - Figure 3 The present embodiment provides a port structure of a welding pressing mechanism, including an outer layer pressing nozzle body 1, wherein the holding port 110 of the outer layer pressing nozzle body 1 is provided with a labyrinth groove 2, wherein the groove 210, the groove inlet 220, and the groove outlet 230 of the labyrinth groove 2 are connected to each other, and the groove inlet 220 is connected to the outside, and the groove outlet 230 is connected to the inner cavity 120 of the outer layer pressing nozzle body 1.

[0023] By providing a labyrinth groove 2 at the supporting port 110, the inner cavity 120 of the outer nozzle body 1 can be connected to the outside air. Then, the gap enclosed by the outer nozzle body 1 and the inner nozzle body (not shown) will flow out from the outlet of the gap, flow to the welding point area covered by the supporting port 110, the inner cavity of the inner nozzle body, and flow to the outer area of ​​the outer nozzle body 1 through the groove outlet 220, the groove 210, and the groove inlet 220, thereby playing a protective role, especially protecting the explosion-proof plate during laser welding.

[0024] During the welding process, the labyrinth groove 2, as the name implies, is not a directly connected channel, but has a tortuous and curved path from one end to the other. Even if the generated welding slag splashes and enters the groove outlet 220 and the groove 210, it will be blocked by the groove wall of the groove 210, thereby eliminating the splashing welding slag from flying out of the groove inlet 220 and affecting the quality of surrounding components.

[0025] When the cleaning device uses a vacuum pump to extract welding smoke, welding dust and welding slag from the inner cavity 120 of the dust extraction shield and the outer nozzle body 1, the outside air can enter the inner cavity 120 from the groove inlet 220, the groove 210 and the groove outlet 230, and the air flow carrying welding smoke, welding dust and welding slag is drawn into the cleaning device, balancing the negative pressure state caused by the vacuum pump pulling the inner cavity 120.

[0026] Therefore, by setting the labyrinth groove 2, the disadvantage of the prior art that after the pressure nozzle port is against the end face of the new energy module, the inner cavity is closed and the welding smoke, welding dust and slag cannot be extracted can be solved, and the problem that the welding shielding gas cannot flow to the surrounding parts that need to be protected is solved, which can greatly improve the welding quality and efficiency.

[0027] Please refer to Figure 2 and Figure 3 In some embodiments, the projection contour of the supporting port 110 is a circular ring, the labyrinth groove 2 is a straight groove, and the length direction of the labyrinth groove 2 is parallel to the diameter of the supporting port 110; both ends of the straight groove are the groove entrances 220, and the groove exit 230 is arranged on the side wall of the straight groove adjacent to the center of the circular ring; the other side wall of the straight groove is a baffle 111.

[0028] In this embodiment, the labyrinth groove 2 is designed as a straight groove, which is very convenient to process, and the labyrinth groove 2 can be directly processed by milling or boring. The baffle 111 can block the splashing welding slag.

[0029] Before the inventors developed the above embodiments, please refer to Figure 4A port structure of a welding pressing mechanism is also designed. This design directly opens a slot that goes straight through the inside and outside of the outer layer of the pressing nozzle body 1 near the abutting port 110. This slot cannot block the splashing welding slag and is therefore eliminated.

[0030] Please refer to Figure 3 A baffle 111 is provided on the side of the channel outlet 230 away from the inner cavity 120 of the outer layer nozzle body 1.

[0031] Regardless of the bending direction of the labyrinth groove 2, a baffle 111 is provided on the side of the groove outlet 230 away from the inner cavity 120 of the outer layer nozzle body 1, which can always prevent the splashing welding slag from flying out of the outer layer nozzle body 1 and causing adverse effects on the battery module.

[0032] Preferably, the groove inlet 220 and the groove outlet 230 are chamfered 240 .

[0033] Providing chamfers can prevent sharp spots or burrs, and facilitate the installation and maintenance of the outer lamination nozzle body 1.

[0034] In the specification and claims of the present application, the words "include / comprise" and the words "have / include" and their variations are used to specify the existence of stated features, values, steps or components, but do not exclude the existence or addition of one or more other features, values, steps, components or combinations thereof.

[0035] Some features of the present invention are described in different embodiments for clarity of description, however, these features may also be described in combination in a single embodiment. Conversely, some features of the present invention are described in a single embodiment for brevity, however, these features may also be described in different embodiments alone or in any suitable combination.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A port structure of a welding holding mechanism, characterized in that: It comprises an outer layer pressing nozzle body, the abutting port of the outer layer pressing nozzle body is provided with a labyrinth groove, the groove, the groove entrance and the groove exit of the labyrinth groove are interconnected, the groove entrance is connected with the outside, and the groove exit is connected with the inner cavity of the outer layer pressing nozzle body.

2. The port structure of a welding pressing mechanism according to claim 1, characterized in that: The projection contour of the supporting port is a circular ring, the labyrinth groove is a straight groove, and the length direction of the labyrinth groove is parallel to the diameter of the supporting port; both ends of the straight groove are the groove entrances, and the groove exit is arranged on the side wall of the straight groove adjacent to the center of the circular ring; the other side wall of the straight groove is a baffle.

3. The port structure of a welding pressing mechanism according to claim 1, characterized in that: A baffle is provided on one side of the channel outlet away from the inner cavity of the outer layer pressing nozzle body.

4. The port structure of a welding pressing mechanism according to claim 1, characterized in that: The groove inlet and the groove outlet are chamfered.

Images