Welding pressing assembly

Abstract

The utility model discloses a welding pressing assembly which comprises an outer layer pressing nozzle, an inner layer pressing nozzle, a second pressing nozzle and a third fixing plate, and the outer layer pressing nozzle comprises a first pressing nozzle part and a first fixing plate; the inner layer pressing nozzle comprises a second pressing nozzle part and a second fixing plate; an air inlet joint is arranged on the outer wall of the outer-layer pressing nozzle; the first fixing plate is attached to the second fixing plate; a gap communicated with the air inlet joint and the lower end opening of the first pressing nozzle part is enclosed between the inner wall of the first pressing nozzle part and the outer wall of the second pressing nozzle part; the mounting plate is provided with a stepped hole and a welding avoidance hole; a shaft shoulder part of the shaft shoulder screw penetrates through the stepped hole in a sliding manner and extends out of the end surface of the mounting plate; in the first fixing plate and the second fixing plate, at least the first fixing plate is provided with a threaded hole, and a thread part of the shoulder screw is connected with the threaded hole; and the elastic piece elastically abuts against the mounting plate and the second fixing plate.

Description

Technical Field

[0001] The present application relates to the technical field of welding processing devices, and in particular to a welding clamping assembly. Background Art

[0002] Laser welding is a relatively mature technology for non-detachable connection of workpieces. When welding some products, welding shielding gas needs to be input to improve welding quality.

[0003] In the prior art, there is an adapter plate welding clamping device and an adapter plate welding system disclosed in the patent document with patent application number CN202320908383.7, in which the inner copper nozzle and the outer copper nozzle in the inner copper nozzle assembly rely on the elastic force of the spring to press the two fixed seats together. This connection structure is not reliable, because when pressurized welding shielding gas is input from the air inlet of the outer copper nozzle, the welding shielding gas will not only be released from the gap outlet between the inner copper nozzle and the outer copper nozzle, but also will resist between the inner copper nozzle and the outer copper nozzle, overcoming the elastic force of the spring. A gap will also appear between the two fixed seats, which are connected to the gap, causing leakage of the welding shielding gas, resulting in waste and being detrimental to the laser welding protection effect and welding quality. Utility Model Content

[0004] The utility model mainly aims at the above problems and proposes a welding clamping assembly, aiming to solve the technical problems in the background technology.

[0005] To achieve the above object, the utility model provides a welding clamping assembly, comprising:

[0006] The outer layer pressure nozzle comprises a first pressure nozzle part and a first fixing plate; the first pressure nozzle part is a hollow cylinder with openings at both ends, and the upper end of the first pressure nozzle part is connected to the first fixing plate, and the first fixing plate is provided with a position avoidance hole connected to the upper end opening of the first pressure nozzle part; the outer wall of the outer layer pressure nozzle is provided with an air inlet joint;

[0007] An inner layer pressure nozzle, the inner layer pressure nozzle comprises a second pressure nozzle part and a second fixing plate; the second pressure nozzle part is a hollow cylinder with openings at both ends, and the upper end of the second pressure nozzle part is connected to the second fixing plate, and the second fixing plate is provided with an avoidance hole connected to the upper end opening of the second pressure nozzle part; the second pressure nozzle part is nested in the first pressure nozzle part, and the first fixing plate is in contact with the second fixing plate; a gap connected to the air inlet joint and the lower end opening of the first pressure nozzle part is enclosed between the inner wall of the first pressure nozzle part and the outer wall of the second pressure nozzle part;

[0008] A mounting plate, wherein the mounting plate is provided with a step hole and a welding avoidance hole;

[0009] A shoulder screw, wherein the shoulder portion of the shoulder screw slides through the step hole and extends out of the end surface of the mounting plate; at least the first fixing plate of the first fixing plate and the second fixing plate is provided with a threaded hole, and the thread portion of the shoulder screw is connected to the threaded hole;

[0010] An elastic member elastically supports the mounting plate and the second fixing plate.

[0011] Furthermore, it comprises a limiting sleeve which sleeves the outer layer pressing nozzle and the inner layer pressing nozzle, and the limiting sleeve is used for holding the mounting plate when the second fixing plate moves close to the limit position relative to the mounting plate.

[0012] Furthermore, the limiting sleeve is adjustably connected to the inner layer pressing nozzle relative to the outer layer pressing nozzle.

[0013] Furthermore, a guide sleeve is extended upward from the avoidance hole of the second fixing plate, and the guide sleeve is slidably connected to the welding avoidance hole.

[0014] Furthermore, it includes a limit plugging cover, which is connected to the mounting plate, blocks the port of the step hole, and encloses the nut part of the shoulder screw in the step hole.

[0015] Furthermore, it comprises a connecting plate, wherein the connecting plate is provided with a plurality of strip holes, and the mounting plate and the connecting plate are connected by screws penetrating the strip holes.

[0016] Furthermore, it comprises a floating plate, and the floating plate and the connecting plate are connected by screws penetrating the strip holes.

[0017] Furthermore, the elastic member is a cylindrical spring, and the cylindrical spring is sleeved on the outer wall of the shoulder portion of the shoulder screw.

[0018] Furthermore, the column is a truncated cone.

[0019] Furthermore, the lower opening of the second pressure nozzle part is received in the first pressure nozzle part; when the lower opening of the first pressure nozzle part abuts against an end surface, the gap can be communicated with the inner cavity of the second pressure nozzle part.

[0020] Compared with the prior art, the utility model provides a welding clamping assembly, which can set a threaded hole on the first fixed plate, and the threaded portion of the shoulder screw is connected to the threaded hole, so as to further strengthen the connection strength between the first fixed plate and the second fixed plate that are close to each other, and the outer layer pressure nozzle and the inner layer pressure nozzle are connected as a whole, so that the pressurized welding shielding gas enters the gap through the air inlet joint, even if the gas pressure acts on the outer layer pressure nozzle and the inner layer pressure nozzle, under the action of the connection strength of the shoulder screw, the first fixed plate and the second fixed plate will not be easily separated and communicate with the gap, causing leakage of the welding shielding gas, thereby improving the welding process quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural schematic diagram of a welding clamping assembly connected to a connecting plate and a floating plate in the present application.

[0022] Figure 2 This is a structural schematic diagram from another perspective of a welding clamping assembly connected to a connecting plate and a floating plate in the present application.

[0023] Figure 3 This is a schematic diagram of the structural decomposition of a welding clamping assembly connected to a connecting plate and a floating plate in the present application.

[0024] Figure 4 A top view of a welding clamping assembly according to the present application.

[0025] Figure 5 for Figure 4 Section view along the AA cutting line.

[0026] Figure 6 for Figure 4 Section view along the BB cutting line.

[0027] Figure 7 This is a schematic diagram of the structural decomposition of a welding clamping assembly for this application.

[0028] The reference numerals shown in the figure are: 1. outer layer pressure nozzle; 110. first pressure nozzle part; 120. first fixed plate; 2. avoidance hole; 260. gap; 3. air inlet joint; 4. inner layer pressure nozzle; 410. second pressure nozzle part; 420. second fixed plate; 430. guide sleeve; 5. mounting plate; 510. step hole; 520. welding avoidance hole; 6. shoulder screw; 7. elastic part; 8. limit sleeve; 810. long strip connecting hole; 9. limit plug cover; 10. connecting plate; 1010. strip hole; 11. floating plate. DETAILED DESCRIPTION

[0029] 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.

[0030] 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.

[0031] 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.

[0032] Please refer to Figure 1 - Figure 7 , this embodiment provides a welding clamping assembly, including:

[0033] The outer layer pressing nozzle 1 comprises a first pressing nozzle part 110 and a first fixing plate 120; the first pressing nozzle part 110 is a hollow cylinder with openings at both ends, and the upper end of the first pressing nozzle part 110 is connected to the first fixing plate 120, and the first fixing plate 120 is provided with a position avoidance hole 2 connected to the upper end opening of the first pressing nozzle part 110; the outer wall of the outer layer pressing nozzle 1 is provided with an air inlet joint 3;

[0034] The air inlet connector 3 can be conveniently connected to the pipeline of the welding shielding gas.

[0035] The inner layer pressure nozzle 4 comprises a second pressure nozzle part 410 and a second fixing plate 420; the second pressure nozzle part 410 is a hollow cylinder with openings at both ends, and the upper end of the second pressure nozzle part 410 is connected to the second fixing plate 420, and the second fixing plate 420 is provided with a avoidance hole 2 connected to the upper end opening of the second pressure nozzle part 410; the second pressure nozzle part 410 is nested in the first pressure nozzle part 110, and the first fixing plate 120 is in contact with the second fixing plate 420; a gap 260 connected to the air inlet joint 3 and the lower end opening of the first pressure nozzle part 110 is enclosed between the inner wall of the first pressure nozzle part 110 and the outer wall of the second pressure nozzle part 410;

[0036] The welding shielding gas entering the gap 260 will reach the welding position of the outer layer pressure nozzle 1 enclosure, and will be released from the opening enclosed area of ​​the first pressure nozzle part 110 to play a role in welding protection.

[0037] The openings of the first pressure nozzle 110 and the second pressure nozzle 410 and the avoidance holes 2 of the first fixing plate 120 and the second fixing plate 420 play a role in avoiding the penetration of the welding laser, allowing it to pass through and reach the welding point.

[0038] A mounting plate 5, wherein the mounting plate 5 is provided with a step hole 510 and a welding avoidance hole 520;

[0039] A shoulder screw 6, the shoulder portion of the shoulder screw 6 slides through the step hole 510 and extends out of the end surface of the mounting plate 5; at least the first fixing plate 120 and the second fixing plate 420 are provided with a threaded hole, and the threaded portion of the shoulder screw 6 is connected to the threaded hole;

[0040] The nut portion of the shoulder screw 6 is confined within the step of the step hole 510 , and the shoulder portion and thread portion of the shoulder screw 6 are penetrated by the step hole 510 , extending from the end surface of the mounting plate 5 , and connected to the first fixing plate 120 and the second fixing plate 420 .

[0041] Both the first fixing plate 120 and the second fixing plate 420 can be provided with threaded holes, or the second fixing plate 420 can be provided with through holes. The first fixing plate 120 is provided with threaded holes, and the threaded portion of the shoulder screw 6 is connected to the threaded holes, so as to further strengthen the connection strength between the first fixing plate 120 and the second fixing plate 420 that are close to each other. The outer layer pressure nozzle 1 and the inner layer pressure nozzle 4 are connected as a whole, so the pressurized welding shielding gas enters the gap 260 through the air inlet joint 3. Even if gas pressure acts on the outer layer pressure nozzle 1 and the inner layer pressure nozzle 4, under the connection strength of the shoulder screw 6, the first fixing plate 120 and the second fixing plate 420 will not be easily separated and communicate with the gap 260, resulting in leakage of welding shielding gas, thereby improving the welding process quality.

[0042] The elastic member 7 elastically supports the mounting plate 5 and the second fixing plate 420 .

[0043] The shoulder of the shoulder screw 6 and the through hole in the stepped hole 510 play the role of a guide relationship between the guide column and the guide sleeve, providing guidance for the synchronous movement of the outer layer pressing nozzle 1 and the inner layer pressing nozzle 4 to prevent deflection and inability to accurately press on the welded workpiece. The elastic member 7 plays a buffering role when the outer layer pressing nozzle 1 and the inner layer pressing nozzle 4 are pressed on the processed product to prevent damage to the product.

[0044] Please refer to Figure 5 and Figure 7 , including a limiting sleeve 8 sleeved on the outer layer pressing nozzle 1 and the inner layer pressing nozzle 4, and the limiting sleeve 8 is used to support the mounting plate 5 when the second fixing plate 420 moves close to the limit position relative to the mounting plate 5.

[0045] The limiting sleeve 8 is adjustably connected to the outer layer pressing nozzle 1 and the inner layer pressing nozzle 4 .

[0046] The side walls of the first fixing plate 120 and / or the second fixing plate 420 are provided with threaded holes, and the limiting sleeve 8 is provided with a long strip connecting hole 810, so that the relative position of the limiting sleeve 8 and the outer layer pressing nozzle 1 and the inner layer pressing nozzle 4 can be adjusted, and then the limiting sleeve 8 and the outer layer pressing nozzle 1 and the inner layer pressing nozzle 4 are fixed with screws.

[0047] The limiting sleeve 8 is also provided with a avoiding hole 2 corresponding to the air inlet joint 3 .

[0048] The different distances between the limit sleeve 8 and the mounting plate 5 correspond to the distances at which the outer layer pressing nozzle 1 and the inner layer pressing nozzle 4 can approach the mounting plate 5. The limit sleeve 8 first abuts against the mounting plate 5 to prevent the outer layer pressing nozzle 1 and the inner layer pressing nozzle 4 from further approaching and squeezing the mounting plate 5.

[0049] At the same time, the limit sleeve 8 also plays the role of enclosing the elastic member 7 and the shoulder screw 6 to prevent foreign objects from being twisted in or welding slag from entering the area to affect operation. The limit sleeve 8 can limit the movement of the shoulder screw 6, contact the limit plug cover 9, and be electrically connected to the connecting plate 10.

[0050] Please refer to Figure 5 and Figure 7 A guide sleeve 430 extends upward from the avoidance hole 2 of the second fixing plate 420 , and the guide sleeve 430 is slidably connected to the welding avoidance hole 520 .

[0051] The guide sleeve 430 and the welding avoidance hole 520 cooperate in a sliding guide to prevent the lower openings of the outer layer pressing nozzle 1 and the inner layer pressing nozzle 4 from being deflected when they abut against the welding workpiece, thereby further improving the processing accuracy.

[0052] Please refer to Figure 3 , Figure 6 and Figure 7 , including a limiting plug cover 9, which is connected to the mounting plate 5, blocks the port of the step hole 510, and encloses the nut part of the shoulder screw 6 in the step hole 510.

[0053] The distance between the limiting plug cover 9 and the stepped hole 510 is the movable range of the nut part, that is, the movable range of the shoulder screw 6 and its connecting parts.

[0054] Please refer to Figure 1 - Figure 3 , including a connecting plate 10, wherein the connecting plate 10 is provided with a plurality of strip holes 1010, and the mounting plate 5 and the connecting plate 10 are connected by screws penetrating the strip holes 1010.

[0055] There are multiple welding clamping assemblies, which can be installed on the connecting plate 10, and the relative positions between the clamping assemblies can be adjusted through the strip holes 1010, so as to better correspond to the welding positions of the processed products.

[0056] Please refer to Figure 1 - Figure 3 , including a floating plate 11, and connecting the floating plate 11 and the connecting plate 10 by screws penetrating the strip holes 1010.

[0057] The floating plate 11 is connected to the three-axis gantry module in the welding equipment or the lifting component in the three-axis gantry module and is driven to move. The welding clamping assembly is connected to the floating plate 11 through the connecting plate 10, and the position of the clamping assembly can be adjusted through the strip hole 1010, so that it can better correspond to the welding position of the processed product.

[0058] For example, when there are four welding clamping assemblies, the positions of the four clamping nozzles can be adjusted individually through the strip holes 1010 to accommodate changes in the positions of the battery poles and changes in the spacing between adjacent batteries in the module, and can be processed for power modules of different models and specifications.

[0059] Please refer to Figure 5 - Figure 7 Preferably, the elastic member 7 is a cylindrical spring, and the cylindrical spring is sleeved on the outer wall of the shoulder portion of the shoulder screw 6.

[0060] Preferably, the column is a truncated cone.

[0061] At the two ends of the truncated cone, the end with a larger diameter is called the large diameter end, and the other end is the small diameter end.

[0062] The large diameter end of the first nozzle part 110 is connected to the first fixed plate 120; the large diameter end of the second nozzle part 410 is connected to the second fixed plate 420; a gap 260 is enclosed between the inner wall of the first nozzle part 110 and the outer wall of the second nozzle part 410 and is connected to the air inlet connector 3 and the small diameter end opening of the first nozzle part 110.

[0063] The mounting plate 5 is made of insulating material, preferably glass fiber material, which can prevent short circuits.

[0064] Please refer to Figure 5 The lower end opening of the second pressure nozzle part 410 is received in the first pressure nozzle part 110; when the lower end opening of the first pressure nozzle part 110 is in contact with an end surface, the gap 260 can be connected with the inner cavity of the second pressure nozzle part 410.

[0065] This structure allows the welding shielding gas to enter the gap 260 and the inner cavity of the second nozzle portion 410 from the air inlet joint 3, thereby providing good protection for the welding point.

[0066] 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.

[0067] 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.

[0068] 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 welding clamping assembly, characterized in that: include: The outer layer pressure nozzle comprises a first pressure nozzle part and a first fixing plate; the first pressure nozzle part is a hollow cylinder with openings at both ends, and the upper end of the first pressure nozzle part is connected to the first fixing plate, and the first fixing plate is provided with a position avoidance hole connected to the upper end opening of the first pressure nozzle part; the outer wall of the outer layer pressure nozzle is provided with an air inlet joint; An inner layer pressure nozzle, the inner layer pressure nozzle comprises a second pressure nozzle part and a second fixing plate; the second pressure nozzle part is a hollow cylinder with openings at both ends, and the upper end of the second pressure nozzle part is connected to the second fixing plate, and the second fixing plate is provided with an avoidance hole connected to the upper end opening of the second pressure nozzle part; the second pressure nozzle part is nested in the first pressure nozzle part, and the first fixing plate is in contact with the second fixing plate; a gap connected to the air inlet joint and the lower end opening of the first pressure nozzle part is enclosed between the inner wall of the first pressure nozzle part and the outer wall of the second pressure nozzle part; A mounting plate, wherein the mounting plate is provided with a step hole and a welding avoidance hole; A shoulder screw, wherein the shoulder portion of the shoulder screw slides through the step hole and extends out of the end surface of the mounting plate; at least the first fixing plate of the first fixing plate and the second fixing plate is provided with a threaded hole, and the thread portion of the shoulder screw is connected to the threaded hole; An elastic member elastically supports the mounting plate and the second fixing plate.

2. A welding clamping assembly according to claim 1, characterized in that: It comprises a limiting sleeve sleeved on the outer layer pressing nozzle and the inner layer pressing nozzle, and the limiting sleeve is used for abutting against the mounting plate when the second fixing plate moves close to the limit position relative to the mounting plate.

3. A welding clamping assembly according to claim 2, characterized in that: The limiting sleeve is adjustably connected to the inner layer pressing nozzle relative to the outer layer pressing nozzle.

4. A welding clamping assembly according to claim 1, characterized in that: A guide sleeve is extended upward from the avoidance hole of the second fixing plate, and the guide sleeve is slidably connected to the welding avoidance hole.

5. A welding clamping assembly according to claim 1, characterized in that: It includes a limit plugging cover, which is connected to the mounting plate, blocks the port of the step hole, and encloses the nut part of the shoulder screw in the step hole.

6. A welding clamping assembly according to claim 1, characterized in that: It comprises a connecting plate, wherein the connecting plate is provided with a plurality of strip holes, and the mounting plate and the connecting plate are connected by screws penetrating the strip holes.

7. A welding clamping assembly according to claim 6, characterized in that: It comprises a floating plate, and the floating plate and the connecting plate are connected by screws penetrating the strip holes.

8. A welding clamping assembly according to claim 1, characterized in that: The elastic member is a cylindrical spring, and the cylindrical spring is sleeved on the outer wall of the shoulder portion of the shoulder screw; the column is a truncated cone.

9. A welding clamping assembly according to claim 1, characterized in that: The mounting plate material is insulating material.

10. A welding clamping assembly according to claim 1, characterized in that: The lower opening of the second pressure nozzle part is received in the first pressure nozzle part; when the lower opening of the first pressure nozzle part abuts against an end surface, the gap can be communicated with the inner cavity of the second pressure nozzle part.

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