CN113427702A

CN113427702A - Component assembly

Info

Publication number: CN113427702A
Application number: CN202010205683.XA
Authority: CN
Inventors: 吴荣彬
Original assignee: Boltun Corp
Current assignee: Boltun Corp
Priority date: 2020-03-23
Filing date: 2020-03-23
Publication date: 2021-09-24

Abstract

A component assembly comprises a workpiece and at least one elastic piece. The work extends in an extending direction, includes two end faces opposite to each other in the extending direction, and is formed with a hole penetrating the end faces. The at least one elastic piece is made of a deformable elastic material, is arranged on one end face in an abutting mode, is annular and surrounds the hole. Because the at least one elastic piece surrounds the hole and is made of the elastic material capable of deforming, the at least one elastic piece can deform and tightly abut against the workpiece and one of the dies when the two dies are closed, so that plastic is prevented from being injected into the hole, and the dies are not damaged.

Description

Component assembly

Technical Field

The present invention relates to a component, and more particularly to a component assembly suitable for being embedded in a plastic substrate in advance.

Background

Referring to fig. 1, a plurality of plastic substrates 11 are commonly used in the automotive industry, and in order to facilitate the bonding of each plastic substrate 11 to other components, the plastic substrates 11 are commonly pre-embedded with one or more workpieces 12. Referring to fig. 2, a conventional workpiece 12 is made of metal and is suitable for being embedded in a plastic substrate 11 in advance. The workpiece 12 is generally cylindrical in shape, and has a central through-hole with threads formed on its inner surface to define a central threaded hole 121, and includes a structurally weak deformable portion 122 capable of being deformed by compression, and two flanges 123 projecting radially outward from opposite ends.

Referring to fig. 3, the conventional workpiece 12 is adapted to be embedded in the plastic substrate 11 in advance by a first mold 13 and a second mold 14. The first mold 13 includes a post 131 protruding toward the second mold 14 and adapted to receive the workpiece 12. The first mold 13 and the second mold 14 can cooperate to define an interlayer space 15 for injection molding the plastic substrate 11 when the molds are closed.

In order to ensure that plastic does not flow into the threaded bore 121 of the workpiece 12 during injection molding, the workpiece 12 has an axial length L1 (see fig. 2) that is slightly greater than the interlayer thickness T1 of the interlayer space 15. In this way, when the first mold 13 and the second mold 14 are clamped together to press the workpiece 12, the workpiece 12 includes the deformable portion 122, so that the workpiece 12 is slightly deformed and is tightly pressed between the first mold 13 and the second mold 14, thereby preventing plastic from flowing into the screw hole 121.

Although the foregoing design can prevent plastic from flowing into the screw hole 121, the workpiece 12 made of metal material needs to be pressed by the first die 13 and the second die 14 for a long time to deform the workpiece 12, so that the problems of local deformation and damage of the first die 13 and the second die 14 can be solved.

Disclosure of Invention

The object of the present invention is to provide a combination of components which overcomes at least one of the disadvantages of the prior art.

The part assembly comprises a workpiece extending along the extending direction, wherein the workpiece comprises two end surfaces which are opposite to each other along the extending direction, and a hole extending along the extending direction is formed in the workpiece.

In the component assembly of the invention, the workpiece further comprises an inner surface defining the hole and an outer surface surrounding the inner surface at intervals, and the at least one elastic element comprises a first ring part which is abutted against one end surface and is annular and surrounds the hole and a second ring part which extends along the extension direction from the first ring part and is annularly sleeved on the outer surface.

In the component assembly, the first ring part comprises a main ring section abutting against one end face and an auxiliary ring section which is annular and protrudes from the main ring section along a direction opposite to the one end face.

In the component assembly of the present invention, the second annular portion includes an annular sleeve section extending in the extending direction, and an annular projecting section projecting from the annular sleeve section to the outer surface.

In the component assembly of the invention, the first ring part is spaced from the hole along the radial direction.

In the component assembly, the inner surface is provided with threads, and the hole is a screw hole.

In the component assembly, the workpiece is mainly made of metal, and the elastic piece is mainly made of nylon or rubber.

The component assembly comprises two elastic pieces, wherein one elastic piece is arranged on one end face in an abutting mode and the other elastic piece is arranged on the other end face in an abutting mode and the elastic pieces are annular and surround the hole.

The effect of the component combination is as follows: the at least one elastic piece surrounds the hole and is made of a deformable elastic material, and the elastic piece can be extruded to deform and tightly abut against the workpiece and one of the dies when the two dies are closed, so that plastic is prevented from being injected into the hole, and the dies are not damaged.

Drawings

Other features and effects of the present invention will become apparent from the following detailed description of the embodiments with reference to the accompanying drawings, in which:

FIG. 1 is a perspective view illustrating a conventional plastic substrate and a conventional workpiece;

FIG. 2 is a cross-sectional view illustrating the prior art workpiece;

FIG. 3 is a cross-sectional view illustrating the prior art workpiece used with a first die and a second die;

FIG. 4 is a fragmentary exploded perspective view illustrating a first embodiment of the component assembly of the present invention;

FIG. 5 is a cross-sectional view illustrating the first embodiment;

FIG. 6 is a cross-sectional view illustrating the first embodiment in use with a first mold and a second mold;

fig. 7 is a fragmentary cross-sectional view illustrating a resilient member of the first embodiment deformed by being pressed by the second die;

FIG. 8 is a fragmentary cross-sectional view illustrating the first embodiment embedded in a plastic substrate; and

fig. 9 is a sectional view illustrating a second embodiment of the component assembly of the present invention.

Detailed Description

In the following description, similar or identical elements will be denoted by the same reference numerals.

Referring to fig. 4-6, the first embodiment of the component assembly of the present invention includes a workpiece 2 and a resilient member 3.

The workpiece 2 is made of a low carbon steel material, extends in an extension direction D1, is substantially cylindrical in shape with an axial direction in the same direction as the extension direction D1, and includes two end faces 21 opposite to each other in the extension direction D1, an inner surface 22 extending from one end face 21 to the other end face 21, and an outer surface 23 connected between the end faces 21 and surrounding the inner surface 22 at intervals.

The inner surface 22 defines a hole 221 through the end surface 21, and the hole 221 is a through threaded hole due to the threads formed on the inner surface 22. The outer surface 23 is formed with two flanges 231 located at opposite ends, respectively, and protruding outward in the radial direction. The flange 231 can have different sizes and shapes as desired and is not limited to that shown in the drawings. In other embodiments of the present invention, the hole 221 can be a blind hole that is not through but has only one side opening.

The elastic member 3 is made of nylon, so that it can be elastically deformed. The elastic member 3 is disposed on one of the end surfaces 21 and includes a first ring portion 31 abutting against the one of the end surfaces 21 and surrounding the hole 221 in an annular shape and radially spaced, and a second ring portion 32 extended from the first ring portion 31 in the extending direction D1 and looped against the outer surface 23. In another embodiment of the present invention, the material of the elastic member 3 may be rubber.

The first ring portion 31 includes a main ring segment 311 abutting against the one end surface 21 and having a circular ring shape, and an auxiliary ring segment 312 having a circular ring shape and protruding from the main ring segment 311 in a direction opposite to the one end surface 21. One of the secondary ring segments 312 is generally semi-circular in cross-section.

The second ring portion 32 includes a ring sleeve section 321 which is annular and extends along the extending direction D1, and a protruding sleeve section 322 which is annular and protrudes from the ring sleeve section 321 to the outer surface 23. The ring segment 321 is looped over one of the flanges 231 formed on the outer surface 23. One of the boss sections 322 is generally semi-circular in cross-section.

Referring to fig. 6 to 8, the first embodiment is adapted to be embedded in a plastic substrate 5 by a first mold 41 and a second mold 42. The first mold 41 includes a stud 411 protruding toward the second mold 42.

In production, the first embodiment is sleeved on the protruding column 411, and then the second mold 42 is moved toward the first mold 41 to cooperate with the first mold 41 to define an interlayer space 43 for injection molding the plastic substrate 5 as shown in fig. 6.

When the second mold 42 abuts against the elastic member 3, the second mold can further approach the first mold 41, and press the secondary ring section 312 of the first ring portion 31 of the elastic member 3 as shown in fig. 7. Since the elastic member 3 can be elastically deformed, the secondary ring segment 312 will be deformed and pressed tightly against the workpiece 2 and the second mold 42 under the cooperative and pressing action of the second mold 42, the workpiece 2 and the first mold 41. Then, the plastic substrate 5 of the first embodiment can be obtained by injecting the molten plastic into the interlayer space 43, and then cooling and releasing the mold, as shown in fig. 8.

The first feature of the first embodiment is that the elastic member 3 is pressed to deform the elastic member 3 and tightly abut against the workpiece 2 and the second mold 42, so that the molten plastic can be effectively prevented from flowing into the hole 221 and blocking the hole 221. A second feature of the present first embodiment is that the second die 42 presses the elastic member 3 multiple times even for repeated production because the elastic member 3 has elasticity and is relatively easily deformed. And is not easy to be damaged. That is, the second feature of the present first embodiment is that the mold is not damaged.

Referring to fig. 9, a second embodiment of the component assembly of the present invention is similar to the first embodiment, except that the second embodiment comprises two elastic members 3 sleeved on two opposite ends of the workpiece 2. One of the elastic members 3 is provided on the one of the end surfaces 21 in abutment with the one of the end surfaces 21. The other elastic member 3 is provided on the other end surface 21 so as to abut on the other end surface 21. Since the second embodiment also includes the elastic member 3, the effects of preventing the hole from being plugged, enhancing the strength and the degree of freedom of design of the workpiece 2, and not damaging the mold, which are similar to those of the first embodiment, can be achieved.

In summary, the effect of the component assembly of the present invention is: the elastic member 3 surrounds the hole 221 and is made of a deformable elastic material, and can deform when the first mold 41 and the second mold 42 are closed to at least tightly abut against the workpiece 2 and the second mold 42, so that plastic can be prevented from being injected into the hole 221, and the first mold 41 and the second mold 42 are not easily damaged.

The above description is only an embodiment of the present invention, and the scope of the claims of the present invention is not limited thereto, and the equivalent modifications made by the contents of the claims and the description of the present invention are also intended to be covered by the scope of the claims of the present invention.

Claims

1. A component assembly comprising a workpiece extending in an extending direction, the workpiece including two end surfaces opposite to each other in the extending direction and formed with a hole extending in the extending direction, characterized in that: the part assembly further comprises at least one elastic piece made of a deformable elastic material, wherein the elastic piece is abutted against one end face and is arranged on the end face in an annular shape and surrounds the hole.

2. The component assembly of claim 1, wherein: the workpiece further includes an inner surface defining the aperture and an outer surface surrounding the inner surface at intervals, and the at least one resilient member includes a first ring portion abutting the one of the end surfaces and being annular and surrounding the aperture, and a second ring portion extending from the first ring portion in the direction of extension and annularly surrounding the outer surface.

3. The component assembly of claim 2, wherein: the first ring part comprises a main ring section which is abutted against one end face, and an auxiliary ring section which is annular and protrudes from the main ring section along the direction opposite to the one end face.

4. The component assembly of claim 2, wherein: the second annular part comprises an annular ring section and a protruding sleeve section, wherein the annular ring section extends along the extending direction, and the protruding sleeve section is annular and protrudes from the annular ring section to the outer surface.

5. The component assembly of claim 2, wherein: the first ring portion is radially spaced from the bore.

6. The component assembly of claim 2, wherein: the inner surface is formed with the screw thread, the hole is the screw.

7. The component assembly of claim 1, wherein: the workpiece is mainly made of metal, and the elastic piece is mainly made of nylon or rubber.

8. The component assembly as claimed in any one of claims 1 to 7, wherein: contain two the elastic component, one of them elastic component is in the butt setting on one of them terminal surface, another one elastic component is in the butt setting on another terminal surface, the elastic component is the annular and around the hole.