CN114801191B - Welding assembly - Google Patents

Abstract

The invention discloses a welding assembly, which comprises: the welding device comprises a first welding piece and a second welding piece, wherein the first welding piece comprises a first main body part and a rib blocking part, the first main body part is provided with a first connecting surface, and the rib blocking part is convexly arranged on the first connecting surface; the second welding piece comprises a second main body part and a boss part, the second main body part is provided with a stop surface, the boss part is convexly arranged on the stop surface, and the boss part is provided with a second connecting surface; the rib blocking part is arranged in the lateral direction of the boss part, a containing groove is formed in the lateral surface of the boss part facing the rib blocking part, the first connecting surface is contacted with the second connecting surface, and the rib blocking part faces the stop surface and forms a movable gap with the stop surface. The welding assembly has stable connection effect and is not easy to fail under the action of external force.

Description

Welding assembly

Technical Field

The invention relates to the technical field of welding, in particular to a welding assembly.

Background

In the process of connecting two meltable materials, the surface of the two materials, which are attached together, is usually subjected to melting treatment, then the two materials are pressed together by using external force, the interval between molecules at the attached surface is reduced by the melted materials, and after the melted materials are solidified, the two materials can be connected with each other. In the practical application scene, the two materials connected with each other are subjected to external force, and when the connecting effect at the surface where the two materials are attached is not ideal, the connecting failure is easy to cause.

Disclosure of Invention

The invention provides a welding assembly, which has stable connection effect and is not easy to fail under the action of external force.

The welding assembly provided by the invention comprises:

the first welding piece comprises a first main body part and a rib blocking part, wherein the first main body part is of an integrated structure and is provided with a first connecting surface, and the rib blocking part is convexly arranged on the first connecting surface; and

the second welding piece comprises a second main body part and a boss part, wherein the second main body part is of an integral structure, a stop surface is arranged on the second main body part, the boss part is convexly arranged on the stop surface, and the boss part is provided with a second connecting surface;

the rib blocking part is positioned at the lateral direction of the boss part, a containing groove is formed in the side surface of the boss part facing the rib blocking part, the first connecting surface contacts the second connecting surface, and the rib blocking part faces the stop surface and forms a movable gap with the stop surface;

melting materials of the first welding piece at the first connecting surface and/or the second welding piece at the second connecting surface, and simultaneously, enabling the first welding piece and the second welding piece to mutually support under the action of external force until the rib blocking part is blocked by the blocking surface, wherein the melted materials flow into the accommodating groove through the area between the boss part and the rib blocking part; after the molten material is solidified, the first welding piece is connected with the second welding piece.

Optionally, the boss portion has a first groove wall surface, a second groove wall surface and a groove bottom surface, the first groove wall surface, the second groove wall surface and the groove bottom surface enclose to form the accommodation groove, the first groove wall surface and the second groove wall surface are oppositely arranged.

Optionally, defining the thickness of the boss as d1, defining the distance between the first groove wall surface and the second groove wall surface as d2,

optionally, the second groove wall surface is located at one side of the first groove wall surface, which is away from the second connection surface, the boss part forms a welding rib between the second connection surface and the first groove wall surface, and the molten material flows into the accommodating groove through a region between the welding rib and the rib blocking part;

the distance between the welding rib and the rib blocking part is d3, and d3 is more than or equal to 0.1mm and less than or equal to 0.3mm.

Optionally, the boss portion is located at a side of the accommodating groove, which is close to the stop surface, to form a blocking portion, and a distance between the welding rib and the blocking rib portion is greater than a distance between the blocking portion and the blocking rib portion.

Optionally, the boss portion has a guide wall surface and a receiving wall surface, the guide wall surface with the receiving wall surface encloses to form the holding groove, the guide wall surface is adjacent the second connection face, the receiving wall surface is adjacent the stop surface, the guide wall surface from the second connection face to the receiving wall surface direction is kept away from gradually the fender muscle portion.

Optionally, the depth of the accommodating groove is h, and h is more than or equal to 0.3mm and less than or equal to 0.4mm.

Optionally, the first connection surface is located above the second connection surface.

Optionally, the first welding piece is made of a light-transmitting material, the second welding piece is made of an opaque material, and laser penetrates through the first welding piece to melt the material of the second welding piece at the second connecting surface.

Optionally, the first welding piece comprises two rib blocking parts, and the first connecting surface is positioned between the two rib blocking parts;

the second welding piece is provided with the stop surfaces at two sides of the boss part;

the boss portion is located two keep off between the muscle portion, two keep off the muscle portion respectively towards the boss portion both sides the backstop face, boss portion opposite both sides all are equipped with the accommodation groove.

In the technical scheme of the application, the rib blocking part of the first welding piece faces the stop surface of the second welding piece, the boss part of the second welding piece faces the first connecting surface of the first welding piece, the boss part protrudes out of the stop surface to a degree greater than that of the rib blocking part protruding out of the first connecting surface, and a movable gap is formed between the rib blocking part and the stop surface when the first connecting surface contacts the second connecting surface before welding starts.

In the welding process, materials of the first welding piece at the first connecting surface and/or materials of the second welding piece at the second connecting surface are melted, the first welding piece and the second welding piece are mutually propped under the action of external force, the rib blocking part can be gradually close to the stop surface, and the size of the movable gap is gradually reduced until the rib blocking part is propped against the stop surface. In the welding process, molecular chains of the molten material are broken, mutually diffused and intertwined, and after the molten material is solidified, welding seams are formed at the first connecting surface of the first welding piece and the second connecting surface of the second welding piece so as to realize interconnection.

Further, as the side surface of the boss facing the rib blocking part is provided with the accommodating groove, in the welding process, the molten material at the first connecting surface and the second connecting surface flows into the accommodating groove through the area between the boss part and the rib blocking part. After the molten material is solidified, the connecting area between the material in the accommodating groove and the second welding piece is increased, and the material in the accommodating groove and the inner wall of the accommodating groove form an interlocking structure, so that the external acting force for driving the first welding piece and the second welding piece to separate can be further resisted, the connecting effect of the first welding piece and the second welding piece is improved, the connecting effect of the first welding piece and the second welding piece is stable, and the connection is not easy to fail under the action of external force.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a welded assembly according to an embodiment of the present invention;

FIG. 2 is a dimensioning of the welding assembly of FIG. 1;

FIG. 3 is a schematic view of the welded assembly of FIG. 1;

FIG. 4 is a schematic view of a welding assembly of another embodiment of the present invention prior to welding;

fig. 5 is a schematic view of a welding assembly according to another embodiment of the present invention.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.

Referring to fig. 1, the present invention provides a welding assembly 100, the welding assembly 100 including a first welding member 10 and a second welding member 30, at least one of the first welding member 10 and the second welding member 30 being made of a meltable material. In particular, at least one of the first weldment 10 and the second weldment 30 may be a plastic piece that melts when heated and resolidifies after a decrease in temperature. It will be appreciated that the material of the first weldment 10 may also be made of other known meltable materials.

The first weldment 10 and/or the second weldment 30 may be heated in a variety of ways, and specifically may be heated by a laser, by a heating rod, or by ultrasonic vibration. It will be appreciated that the heating of the first weldment 10 and/or the second weldment 30 may also be other known heating means.

In the embodiment of the application, the first welding member 10 in the welding assembly 100 includes a first main body portion 11 and a rib portion 13 that are integrally configured, the first main body portion 11 has a first connection surface 111, and the rib portion 13 is convexly disposed on the first connection surface 111; the second welding member 30 in the welding assembly 100 comprises a second main body part 31 and a boss part 33 which are integrally formed, wherein the second main body part 31 is provided with a stop surface 311, the boss part 33 is convexly arranged on the stop surface 311, and the boss part 33 is provided with a second connecting surface 331;

the rib blocking part 13 is located at the lateral direction of the boss part 33, the lateral surface of the boss part 33 facing the rib blocking part 13 is provided with a containing groove 333, the first connecting surface 111 contacts the second connecting surface 331, the rib blocking part 13 faces the stop surface 311, and a movable gap is formed between the rib blocking part 13 and the stop surface 311.

Melting the material of the first welding piece 10 at the first connecting surface 111 and/or the second welding piece 30 at the second connecting surface 331, and simultaneously, applying external force to the first welding piece 10 and the second welding piece 30 to mutually support until the rib blocking part 13 is blocked by the blocking surface 311, wherein the melted material flows into the accommodating groove 333 through the area between the boss part 33 and the rib blocking part 13; after the molten material solidifies, the first weldment 10 is connected to the second weldment 30.

Referring to fig. 1 and fig. 3, in the technical solution of the present application, the rib portion 13 of the first welding member 10 faces the stop surface 311 of the second welding member 30, the boss portion 33 of the second welding member 30 faces the first connection surface 111 of the first welding member 10, and the protruding degree of the boss portion 33 on the stop surface 311 is greater than the protruding degree of the rib portion 13 on the first connection surface 111, so that a movable gap is formed between the rib portion 13 and the stop surface 311 when the first connection surface 111 contacts the second connection surface 331 before welding starts. The value of the movable gap can be about 0.3mm.

Referring to fig. 3, in the welding process, the material of the first welding member 10 at the first connecting surface 111 and/or the material of the second welding member 30 at the second connecting surface 331 are melted, the first welding member 10 and the second welding member 30 are abutted against each other by an external force, the rib portion 13 may gradually approach the stop surface 311, and the size of the movable gap gradually decreases until the rib portion 13 abuts against the stop surface 311. During the welding process, the molecular chains of the molten material break and diffuse and intertwine, and after the molten material solidifies, the first welding member 10 forms a weld joint with the second welding member 30 at the first connecting surface 111 and the second connecting surface 331, so as to achieve interconnection.

Further, since the side of the boss facing the rib portion 13 is provided with the receiving groove 333, during welding, the molten material at the first and second connection surfaces 111 and 331 flows to fill in the receiving groove 333 through the region between the boss portion 33 and the rib portion 13. After the molten material is solidified, the material in the accommodating groove 333 not only increases the connection area with the second welding piece 30, but also forms an interlocking structure with the inner wall of the accommodating groove 333, so that the external force for driving the first welding piece 10 and the second welding piece 30 to separate can be further resisted, the connection effect of the first welding piece 10 and the second welding piece 30 is improved, the connection effect of the first welding piece 10 and the second welding piece 30 is stable, and the connection is not easy to fail under the action of external force.

In the above embodiment, the first connection surface 111 may be located above the second connection surface 331. Specifically, the first weldment 10 is located above the second weldment 30. The rib portion 13 protrudes downward from the first connecting surface 111, and the protruding portion protrudes upward from the stopper surface 311. In the welding process, the molten material flows into the accommodating groove 333 along the area between the boss portion 33 and the rib portion 13 under the action of gravity, so that the molten material is easier to fill the accommodating groove 333, and the connecting effect of the first welding piece 10 and the second welding piece 30 is further ensured.

In the above embodiment, when the first welding member 10 and the second welding member 30 are welded by using laser, the first welding member 10 may be made of a light-transmitting material, the second welding member 30 may be made of a light-impermeable material, and the laser penetrates the first welding member 10 and is not absorbed by the second welding member 30, so as to melt the material of the second welding member 30 at the second connecting surface 331.

Since the first welding member 10 is made of a light-transmitting material and the second welding member 30 is made of a light-impermeable material, the laser beam can penetrate through the first welding member 10 and irradiate the second connecting surface 331, the laser beam acts on the second connecting surface 331 to melt the second welding member 30, and the melted material diffuses between molecules of the first welding member 10 to connect the first welding member 10 and the second welding member 30 with the first connecting surface 111 and the second connecting surface 331 in contact.

Referring to fig. 2, in the above embodiment, the depth of the accommodating groove 333 is h, and the range of h can satisfy the following range: h is more than or equal to 0.3mm and less than or equal to 0.4mm. Specifically, the value of h may be 0.3 or 0.4, and it is understood that h may be set to other values as required. In the above range, the accommodating groove 333 is easy to process, and the size of the accommodating groove 333 is sufficient to effectively fill the molten material, so that the material in the accommodating groove 333 is effectively connected with the first welding part 10 and the second welding part 30 after the welding is completed.

In the above embodiment, the shape of the accommodating groove 333 may be various, specifically, the cross section of the boss portion 33 at the accommodating groove 333 may be square, arc or triangle, and may be polygonal or other irregular shapes as required. The molded jig structure may be changed as needed when injection molding the second weldment 30.

Alternatively, as shown in fig. 1, the boss portion 33 may have a first groove wall surface 333a, a second groove wall surface 333b, and a groove bottom surface 333c, where the first groove wall surface 333a, the second groove wall surface 333b, and the groove bottom surface 333c enclose a receiving groove 333, and the first groove wall surface 333a and the second groove wall surface 333b are disposed opposite to each other. Under this structure, the holding groove 333 can be enclosed by three cell wall surfaces that connect gradually and establish and form, and this holding groove 333 shaping simple structure, and accomplish the welding back of first welding part 10 and second welding part 30, the cell wall of this holding groove 333 is better to the material backstop effect of inside solidification, has further improved the connection stability of first welding part 10 and second welding part 30.

Referring to fig. 2, the thickness of the boss portion 33 is defined as d1, the distance between the first groove wall surface 333a and the second groove wall surface 333b is defined as d2,that is to say, the width of the accommodation groove 333 is thickness of boss portion 33->

During the melting process of the material at the second connecting surface 331 of the second welding member 30, and under the pressure of the first welding member 10, the second connecting surface 331 gradually moves toward the side close to the stop surface 311, so that the thickness of the boss portion 33 gradually decreases. In the above range of values, when the boss portion 33 has a high structural strength, the molten material can be effectively filled in the accommodating groove 333. The thickness of the boss portion 33 is the protruding degree of the boss portion 33 from the stop surface 311, that is, the distance between the second connecting surface 331 and the stop surface 311.

In the above embodiment, the second groove wall surface 333b may be located at a side of the first groove wall surface 333a away from the second connecting surface 331, and during the welding process, the molten material presses the second groove wall surface 333b under the pressurizing action of the first welding member 10, so that the connection between the material in the accommodating groove 333 and the second groove wall surface 333b is tighter.

Referring to fig. 1 and 2, the boss portion 33 forms a welding rib 334 between the second connection surface 331 and the first groove wall surface 333a, and the molten material flows into the accommodating groove 333 through a region between the welding rib 334 and the rib blocking portion 13;

the distance between the welding rib 334 and the rib blocking part 13 is d3, and d3 is more than or equal to 0.1mm and less than or equal to 0.3mm. d3 may be 0.1mm, 0.2mm or 0.3mm, and may be any other value within the above range. The distance between the welding rib 334 and the rib blocking portion 13 satisfies the above range, so that the molten material can more easily enter the accommodating groove 333 through the region between the welding rib 334 and the rib blocking portion 13.

Further, the boss portion 33 forms a blocking portion 335 at a side of the accommodating groove 333 near the stop surface 311, and a distance between the welding rib 334 and the blocking rib portion 13 is greater than a distance between the blocking portion 335 and the blocking rib portion 13.

After the molten material enters the accommodating groove 333 through the area between the welding rib 334 and the rib blocking portion 13, the molten material is not easy to leak from the area between the material blocking portion 335 and the rib blocking portion 13, and the surface cleanliness of the welding assembly 100 in the welding process is ensured.

Alternatively, as shown in fig. 4, the boss portion 33 may have a guiding wall surface 333d and a receiving wall surface 333e, where the guiding wall surface 333d and the receiving wall surface 333e enclose a receiving groove 333, the guiding wall surface 333d is adjacent to the second connecting surface 331, the receiving wall surface 333e is adjacent to the stop surface 311, and the guiding wall surface 333d is gradually far away from the rib portion 13 from the second connecting surface 331 to the receiving wall surface 333 e.

Since the guide wall 333d is adjacent to the second connection surface 331, during the melting of the material of the second welding member 30 at the second connection surface 331, the melted material may flow along the guide wall 333d, so that the melted material may more easily fill the accommodating groove 333. In the welding process, the molten material presses the receiving wall 333e under the pressurizing action of the first welding member 10, so that the connection between the material in the accommodating groove 333 and the receiving wall 333e is tighter.

As shown in fig. 5, the first welding member 10 may include two rib portions 13, and the first connection surface 111 is located between the two rib portions 13;

the second welding member 30 has a stop surface 311 on both sides of the boss portion 33;

the boss portion 33 is located between the two rib blocking portions 13, the two rib blocking portions 13 face the stop surfaces 311 on two sides of the boss portion 33 respectively, and accommodating grooves 333 are formed on two opposite sides of the boss portion 33.

The two opposite sides of the boss portion 33 are provided with the accommodating grooves 333, so that the second welding piece 30 can be stably connected to the two opposite sides of the boss portion 33, the effectiveness of connecting the first welding piece 10 and the second welding piece 30 is further enhanced, and the welded assembly 100 after welding is not easy to separate under the action of external force.

The foregoing description is only of the optional embodiments of the present invention, and is not intended to limit the scope of the invention, and all the equivalent structural changes made by the description of the present invention and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the invention.

Claims (9)

1. A welding assembly, the welding assembly comprising:

the first welding piece comprises a first main body part and a rib blocking part, wherein the first main body part is of an integrated structure and is provided with a first connecting surface, and the rib blocking part is convexly arranged on the first connecting surface; and

the second welding piece comprises a second main body part and a boss part, wherein the second main body part is of an integral structure, a stop surface is arranged on the second main body part, the boss part is convexly arranged on the stop surface, and the boss part is provided with a second connecting surface; the protruding degree of the boss part is larger than the protruding degree of the rib blocking part from the first connecting surface; the first connecting surface is positioned above the second connecting surface;

the rib blocking part is positioned at the lateral direction of the boss part, a containing groove is formed in the side surface of the boss part facing the rib blocking part, the first connecting surface contacts the second connecting surface, and the rib blocking part faces the stop surface and forms a movable gap with the stop surface;

melting materials of the first welding piece at the first connecting surface and/or the second welding piece at the second connecting surface, and simultaneously, applying external force to the first welding piece and the second welding piece to mutually support, wherein the size of the movable gap gradually decreases until the rib blocking part is blocked by the blocking surface, and the melted materials flow into the accommodating groove through the area between the boss part and the rib blocking part; after the molten material is solidified, the first welding piece is connected with the second welding piece.

2. The welding assembly of claim 1 wherein said boss portion has a first groove wall surface, a second groove wall surface and a groove bottom surface, said first groove wall surface, said second groove wall surface and said groove bottom surface being defined to form said receiving groove, said first groove wall surface and said second groove wall surface being disposed opposite one another.

3. The welded assembly of claim 2 wherein the thickness of the boss portion is defined as d1 and the spacing of the first slot wall surface from the second slot wall surface is defined as

4. The welding assembly of claim 2 wherein said second channel wall surface is on a side of said first channel wall surface facing away from said second connection surface, said boss portion forming a weld bead between said second connection surface and said first channel wall surface, molten material flowing into said receiving channel through an area between said weld bead and said rib stop;

the distance between the welding rib and the rib blocking part is d3, and d3 is more than or equal to 0.1mm and less than or equal to 0.3mm.

5. The welding assembly of claim 4, wherein the boss portion forms a blocking portion on a side of the receiving groove adjacent to the stop surface, and a distance between the welding rib and the blocking rib portion is greater than a distance between the blocking portion and the blocking rib portion.

6. The welding assembly of claim 1, wherein the boss portion has a guide wall surface and a receiving wall surface, the guide wall surface and the receiving wall surface are surrounded to form the accommodating groove, the guide wall surface is adjacent to the second connection surface, the receiving wall surface is adjacent to the stop surface, and the guide wall surface is gradually far away from the rib portion from the second connection surface to the receiving wall surface.

7. The welding assembly of any one of claims 1 to 6 wherein the depth of the receiving groove is h,0.3mm +.h +.0.4 mm.

8. The welding assembly of any one of claims 1 to 6 wherein a first weld is made of a light transmissive material and a second weld is made of a light opaque material, laser light penetrating the first weld melting material of the second weld at the second connection face.

9. The welding assembly of any one of claims 1 to 6 wherein said first weld includes two rib portions, said first connection face being located between two of said rib portions;

the second welding piece is provided with the stop surfaces at two sides of the boss part;

the boss portion is located two keep off between the muscle portion, two keep off the muscle portion respectively towards the boss portion both sides the backstop face, boss portion opposite both sides all are equipped with the accommodation groove.