CN209823069U - Crimping die component and crimping die - Google Patents

Abstract

The present disclosure relates to a crimping die component and a crimping die. In one aspect, a crimping die part is provided, which may include a die body, an inner wall of which may include an inner surface partially defining a crimping cavity, the crimping die part being characterized in that a protrusion may be provided on the inner surface of the inner wall of the die body, which protrudes radially inward therefrom. According to the present disclosure, it is possible to improve the pull-resistance and/or the current-carrying capacity between the cable and the terminal or between the cable and the cable which are crimped together while significantly reducing the manufacturing difficulty and/or the manufacturing cost of the die member/die.

Description

Crimping die component and crimping die

Technical Field

The present disclosure relates to the field of dies, and in particular, to crimping dies for crimping die components and including the same.

Background

This section provides background information related to the present disclosure, but such information does not necessarily constitute prior art.

At present, the crimping of the cable and the terminal and the crimping between the cables can be realized by a crimping die.

However, the crimping dies on the market at present generally have the defects of poor adaptation, insufficient drawing resistance between the cables and the terminals or between the cables which are crimped together through the crimping dies, and the like. In particular, cables and terminals or cables and cables crimped together by crimping dies on the market today may come loose when subjected to high drawing forces and in severe cases may even come loose. In addition, the crimping dies on the market today may also cause excessive air to be left between the crimped cable and the terminal or between the cable and the cable, resulting in a reduced power-on capability.

In addition, there is a hexagonal crimping die with spot pressing in the current market. However, these crimping dies are difficult to be widely used due to the complicated process, the difficulty of processing, and the high processing cost.

SUMMERY OF THE UTILITY MODEL

This section provides a general summary of the disclosure, and is not a comprehensive disclosure of its full scope or all of its features.

An object of the present disclosure is to provide a crimping die capable of improving or improving the drawing resistance and/or the current carrying capacity between a cable and a terminal or between a cable and a cable which are crimped together.

Another object of the present disclosure is to provide a crimping die with a spot pressure that can significantly reduce manufacturing difficulty and/or manufacturing cost while being widely applicable.

In order to achieve one or more of the above objects, according to a first aspect of the present disclosure there is provided a crimping die part which may comprise a die body, an inner wall of the die body may comprise an inner surface partially defining a crimping cavity, the crimping die part being characterised in that a projection may be provided on the inner surface of the inner wall of the die body which projects radially inwardly therefrom.

In some embodiments according to the first aspect, where the crimping cavities are polygonal cavities, the polygonal cavities may be hexagonal cavities.

In some embodiments according to the first aspect, the hexagonal cavities may be regular hexagonal cavities.

In some embodiments according to the first aspect, the protrusion may be provided at a central portion of the inner surface.

In some embodiments according to the first aspect, the protrusion may be integrally provided on the inner surface.

In some embodiments according to the first aspect, the protrusion may be a fitting part fitted on the inner surface.

In some embodiments according to the first aspect, in the case where the protrusion is a fitting part fitted on the inner surface, a recess may be provided on the inner surface, and the fitting part may be tightly fitted in the recess and fitted such that a part of the fitting part protrudes radially inward from the inner surface.

In some embodiments according to the first aspect, the fitting part may be fitted in the recess with an interference fit.

In some embodiments according to the first aspect, the fitting part may be a spherical part, and the recess may be a cylindrical recess or a hemispherical recess that matches in shape the fitting part.

In some embodiments according to the first aspect, the crimping die component may be configured such that less than half of the spherical component may protrude radially inward from the inner surface when the spherical component is fitted within the recess.

In some embodiments according to the first aspect, where the crimping pocket is a regular hexagonal pocket, the inner surfaces may include three adjoining inner surfaces defining half of the regular hexagonal pocket, and the recess may be provided on a middle inner surface of the three inner surfaces that is located in the middle.

According to a second aspect of the present disclosure there is provided a crimping die characterised in that the crimping die may comprise two crimping die parts according to the aforementioned first aspect which may define a crimping cavity when engaged with each other.

In some embodiments according to the second aspect, a channel-shaped channel collectively defined by the two crimping die parts may be formed on the outer wall of the crimping die when the two crimping die parts are engaged with each other.

In some embodiments according to the second aspect, the two crimping die parts may be separate parts.

In some embodiments according to the second aspect, the two crimping die parts may be connected to each other and actuatable to engage close to each other or open away from each other.

In some embodiments according to the second aspect, the two crimping die parts may be hingedly connected to each other in case they are connected to each other.

In some embodiments according to the second aspect, the two crimping die parts may be identical.

In some embodiments according to the second aspect, the crimping die may be used to crimp the terminal with the cable or the cable with the cable.

By adopting the above technical scheme, because the crimping die part/crimping die according to the present disclosure can apply additional point pressure crimping on the cable and the terminal, the crimping die part/crimping die of the present disclosure can provide a more excellent crimping effect, thereby improving the pull-bearing force between the cable and the terminal or between the cable and the cable which are crimped together, and the crimping die part/crimping die of the present disclosure can further extrude the air between the cable and the terminal or between the cable and the cable, therefore, the parts crimped together by the crimping die part/crimping die of the present disclosure can have a more excellent current-carrying capacity. Further, since the crimping die member/crimping die according to the present disclosure does not need to provide a through hole in the die body and also does not need to provide a difficult-to-manufacture ball stud or the like that needs to be inserted into the through hole, the manufacturing process and the crimping process of the crimping die member/crimping die can be simplified. On the other hand, since the protrusion according to the present disclosure can be realized by using a standard piece that can be mass-produced as a fitting part fitted on the inner surface of the inner wall of the die body, the manufacturing process of the crimping die part/crimping die can be greatly simplified, the manufacturing difficulty and manufacturing cost of the crimping die part/crimping die can be remarkably reduced, and thus industrial popularization can be easily performed.

Drawings

Features and advantages of one or more embodiments of the present disclosure will become more readily appreciated as the same becomes better understood by reference to the following description taken in conjunction with the accompanying drawings, which are not to scale and some features may be exaggerated or minimized to show details of particular components, wherein:

FIG. 1 shows a schematic top view of an exemplary crimp die component according to the present disclosure;

FIG. 2 shows a schematic exploded perspective view of an exemplary crimp die component according to the present disclosure;

FIG. 3 shows a schematic perspective view of an exemplary crimping die according to the present disclosure; and

fig. 4 shows a schematic perspective view of an exemplary crimping die crimping a terminal to a cable according to the present disclosure, wherein the cable is omitted for the sake of brevity.

In the drawings, identical or corresponding technical features or components are denoted by identical or corresponding reference numerals.

Detailed Description

The disclosure will be described in detail below with the aid of exemplary embodiments with reference to the accompanying drawings. It is to be noted that the following detailed description of the present disclosure is intended for purposes of illustration only and is not intended to limit the present disclosure in any way.

It is also noted that, for the sake of clarity, not all features of an actual specific embodiment are described and illustrated in the specification and drawings, and that, in order to avoid obscuring the solution to which the present disclosure is directed in unnecessary detail, only the device structures closely related to the solution of the present disclosure are described and illustrated in the drawings and specification, and other details which are not relevant to the technical content of the present disclosure and known to those skilled in the art are omitted.

Next, the basic configuration of the crimping die 1 according to the present disclosure is specifically described first with reference to fig. 3.

Fig. 3 shows a schematic perspective view of an exemplary crimping die 1 according to the present disclosure. In the embodiment shown, the crimping die 1 comprises two crimping die parts 10. In an exemplary embodiment, the two crimping die parts 10 forming the crimping die 1 are separate parts. In another exemplary embodiment, two crimping die members 10 may be connected to one another and can be actuated to engage close to one another or open away from one another. For example, two crimping die parts 10 can be connected to one another in an articulated manner. The two crimping die parts 10 can define a crimping cavity 11 when engaged with each other. The crimping cavities 11 may be polygonal, circular or elliptical depending on the particular application. Preferably, crimping cavities 11 are hexagonal cavities, and more preferably regular hexagonal cavities. In the exemplary embodiment shown in fig. 3 and 4, the crimping cavities 11 are regular hexagonal cavities.

As schematically shown in fig. 4, a crimping die 1 according to the present disclosure may be used to crimp a terminal 2 (e.g., a copper nose) with a cable, and such an application example of the crimping die 1 will be described in detail below with reference to fig. 3 and 4.

The crimping die 1 according to the present disclosure, when crimping a terminal 2 with a cable, first inserts one end of the cable into a hollow opening 20 of the terminal 2, and then actuates two crimping die parts 10 to move toward the terminal 2 from above the terminal 2 and below the terminal 2, respectively, until the two crimping die parts 10 can engage with each other to sandwich the terminal 2 in a crimping cavity 11 defined by the two crimping die parts 10. After the crimping die 1 has exerted a predetermined crimping force on the terminal 2 and the cable, the two crimping die parts 10 are actuated to move away from the terminal 2, respectively. In this way, the crimping die 1 according to the present disclosure achieves crimping of the terminal 2 and the cable. It should be understood that the two crimping die members 10 may be actuated in any suitable manner. For example, the two crimping die parts 10 can be actuated electrically, pneumatically or hydraulically or manually.

Although the above describes the embodiment in which the crimping die 1 of the present disclosure crimps the terminal 2 and the cable, it is understood that the application of the crimping die 1 according to the present disclosure is not limited thereto. For example, the crimping die 1 according to the present disclosure may also be used for crimping between cables. Since such an application example of the crimping die 1 can be easily understood by those skilled in the art based on the above description, it will not be described in detail.

According to an embodiment of the present disclosure, as shown in fig. 3 and 4, the two crimping die parts 10 forming the crimping die 1 may be the same part. In this way, the number of different types of parts can be reduced, thereby facilitating the processing and manufacturing of the crimping die 1, reducing the design and manufacturing costs of the crimping die 1. However, it is understood that the two crimping die parts 10 may also have different shapes without departing from the spirit and scope of the present disclosure, as long as the two crimping die parts 10 are engageable and openable and capable of defining the crimping cavities 11 when engaged with each other.

The crimping die component 10 forming the crimping die 1 of the present disclosure will be described below with reference to fig. 1 to 4, and in particular to fig. 1 and 2.

The crimping die component 10 may include a die body 100. The die body 100 includes an inner wall 101 and an outer wall 102. The outer wall 102 of the die body 100 is formed with a channel-shaped channel (in particular, an axial channel-shaped channel) 1020 collectively defined by the two crimping die parts 10 when the two crimping die parts 10 are engaged with each other. In other words, when the two crimping die segments 10 are engaged with each other, a groove-shaped channel 1020 collectively defined by the two crimping die segments 10 is formed on the outer wall of the crimping die 1, as shown in fig. 3. The actuating means may operate on the crimping die section 10 by cooperating with the channel shaped channel 1020, for example, to operate the two crimping die sections 10 close to each other into engagement or away from each other to open. According to an embodiment of the present disclosure, a portion of the channel shaped channel 1020 is provided at a radial edge of the die body 100 of each crimping die part 10, thus facilitating the machining of the channel shaped channel 1020 and making it possible to simultaneously press two crimping die parts 10 inwards by fitting an actuating tool in this commonly defined channel 1020. It should be noted that the shape of the channel shaped channel 1020 is not limited to the shape shown in the figures, but may be configured in any suitable manner depending on the type of actuation tool used.

According to an embodiment of the present disclosure, the inner wall 101 of the mold body 100 may include an inner surface partially defining the crimping cavity 11, and a protrusion 200 protruding radially inward from the inner surface may be provided on the inner surface. It should be noted that the term "radially inward" refers to a direction pointing toward the crimping cavity 11. As a supplementary explanation, when the two crimping die parts 10 are engaged with each other to define the crimping cavity 11, the protrusion 200 will protrude into the formed crimping cavity 11. In other words, when crimping a cable and a terminal or a cable and a cable using the crimp dies 1 formed from the crimp die parts 10 according to the present disclosure, the protrusion 200 will exert an additional point pressure crimp on the cable and the terminal in addition to the crimp exerted on the cable and the terminal by the inner surface of the die body 100.

In this way, the crimping die 1 formed according to the crimping die part 10 of the present disclosure exerts additional spot pressure crimping on the cable and the terminal compared to the existing crimping die, and therefore, the crimping die of the present disclosure can provide more excellent crimping effect, thereby improving the pull-resistance force (blow-off force) between the cable and the terminal or between the cable and the cable being crimped together, and the die of the present disclosure can further squeeze out the air between the cable and the terminal or between the cable and the cable, and therefore, the part crimped together by the crimping die 1 of the present disclosure can have more excellent current carrying capacity.

According to a preferred embodiment, the protrusion 200 may be provided at a central portion of the inner surface of the inner wall 101. With this, it is possible to allow further stable and balanced application of the point pressure crimping to the cable and the terminal. However, it is understood that the protrusion 200 may be provided at any position of the inner surface of the inner wall 101 without departing from the spirit and scope of the present disclosure, for example, the protrusion 200 may also be provided at a position slightly offset from the central portion of the inner surface of the inner wall 101, or at a position closer to the edge portion of the inner surface of the inner wall 101 than the central portion of the inner surface of the inner wall 101.

According to an embodiment of the present disclosure, the protrusion 200 may be a fitting member fitted on the inner surface of the inner wall 101. This split arrangement of the protrusion 200 and the die body 100 makes it possible to optimize the production and manufacture of the crimping die element 10 by allowing for individual mass production of the protrusion 200. In this case, according to an exemplary embodiment, a recess 1014 may be provided on an inner surface of the inner wall 101 of the mold body 100, and a fitting part as the protrusion 200 may be tightly fitted in the recess 1014 and fitted such that a portion thereof protrudes radially inward from the inner surface of the inner wall 101 of the mold body 100, as shown in fig. 1.

In a preferred embodiment, the fitting part as the protrusion 200 may be a standard that can be mass-produced, and the recess 1014 is a groove that matches the fitting part in shape. It should be noted that the term "match in shape" means that the fitting component as the protrusion 200 can be fitted tightly in the recess 1014 and fitted so that a part of the fitting component protrudes radially inward from the inner surface of the inner wall 101 of the die body 100.

According to an exemplary embodiment, as shown in fig. 1, the fitting part as the protrusion 200 may be fitted in the recess 1014 in an interference fit (interference fit). However, it is understood that the fitting part may be fitted in the recess 1014 in any other suitable manner as long as a part of the fitting part can protrude radially inward from the inner surface of the inner wall 101 of the die body 100 into the crimp cavity 11 so that the fitting part can apply additional point-pressure crimping to the terminal and the cable. For example, in another exemplary embodiment, a fitted part as the protrusion 200 may be bonded within the recess 1014.

In the embodiment shown in fig. 1 and 2, the fitting part as the protrusion 200 may be a spherical part, and the recess 1014 may be a cylindrical recess matching in shape to the fitting part. It is understood that the recess 1014 may also be a hemispherical recess. According to a preferred embodiment, the crimping die element 10 may be configured such that when the spherical element as the fitting element is fitted in the recess 1014, less than half of the spherical element protrudes radially inward from the inner surface of the inner wall 101 of the die body 100. In this way, a more tight fit is ensured, since the largest diameter portion is fitted in the recess. Although the fitting part shown in the drawings has a spherical shape, it is understood that the shape of the fitting part is not limited thereto. For example, the fitting part may also be a cylindrical shape with a hemispherical crimp end.

Where the crimping pocket 11 is a regular hexagonal pocket, the inner surface of the inner wall 101 may include three contiguous inner surfaces 1011, 1012, and 1013 defining half of the regular hexagonal pocket. According to this embodiment, a regular hexagonal cavity will be defined when the two crimping die parts 10 are actuated into engagement with each other. The recess 1014 may be provided on the middle inner surface 1012 among the three inner surfaces 1011, 1012, and 1013, whereby the aforementioned point-pressure crimping effect may be allowed to be more stably and reliably achieved.

According to a preferred embodiment, the recess 1014 may be disposed at a central portion of the intermediate inner surface 1012. As previously described, such centering of the recess 1014 may allow further stable and balanced application of a point pressure crimp to the cable and the terminal. However, it should be noted that the arrangement of the recess 1014 is not limited thereto, for example, the recess 1014 may be arranged at a position offset from the central portion of the intermediate inner surface 1012 according to an exemplary embodiment. According to another exemplary embodiment, the recess 1014 may also be provided at other inner surfaces of the inner wall 101 than the intermediate inner surface 1012.

In the illustrated embodiment, only one protrusion 200 is provided on the inner surface of the inner wall 101 of the mold body 100. However, it is understood that the arrangement of the protrusions 200 is not limited thereto, and for example, the protrusions 200 may be arranged more than one, for example, may be arranged two or three.

In addition, although the example in which the protrusion 200 is fitted on the inner surface of the inner wall 101 of the mold body 100 as the fitting part is described above, it is understood that the arrangement of the protrusion 200 is not limited thereto, and the protrusion 200 may be arranged on the inner surface of the inner wall 101 in any other manner as long as the protrusion 200 can be arranged to protrude radially inward from the inner surface of the inner wall 101 into the crimping cavity 11 so that additional point crimping can be applied to the component to be crimped. For example, according to an exemplary embodiment, the protrusion 200 may also be bonded to the inner surface of the inner wall 101, in which case the inner surface of the inner wall 101 may not include the recess 1014. According to another exemplary embodiment, the protrusion 200 may also be integrally provided on the inner surface of the inner wall 101. In other words, the protrusion 200 may be provided integrally with the mold body 100.

The crimping die 1 formed of the crimping die component 100 according to the present disclosure can simplify the manufacturing process of the die and the crimping process because it is not necessary to provide a through hole in the die body 100 and it is also not necessary to provide a difficult-to-manufacture ball stud that needs to be inserted into the through hole, as compared with the case where the spot crimping is realized by providing a through hole on the die body and inserting a ball stud in the through hole in the related art. Also, according to the crimping die 1 of the present disclosure, since the protrusion 200 may be a standard piece that can be mass-produced, the manufacturing process for the crimping die member 10 can be greatly simplified, the manufacturing difficulty and manufacturing cost of the crimping die member 10 can be significantly reduced, and thus industrial popularization can be easily performed.

In the present document, the use of directional terms such as "upper", "lower", "distal", and "proximal" is for convenience of description only and should not be taken as limiting. Furthermore, while the present disclosure has been described with reference to exemplary embodiments, it is to be understood that the disclosure is not limited to the specific embodiments described and illustrated in detail herein. Various modifications may be made to the exemplary embodiments by those skilled in the art without departing from the scope of the disclosure as defined in the claims.

Features mentioned and/or shown in the above description of exemplary embodiments of the disclosure may be combined in the same or similar manner in one or more other embodiments, in combination with or instead of the corresponding features in the other embodiments. Such combined or substituted embodiments should also be considered as included within the scope of the present disclosure.

Claims (17)

1. A crimping die part (10) comprising a die body (100), an inner wall (101) of the die body (100) comprising an inner surface partially defining a crimping cavity (11), characterized in that a protrusion (200) is provided on the inner surface projecting radially inwards from the inner surface.

2. Crimping die part (10) according to claim 1,

the compression joint die cavity (11) is a polygonal die cavity, a circular die cavity or an oval die cavity.

3. Crimping die part (10) according to claim 2, characterized in that in case the crimping cavities (11) are polygonal cavities, the polygonal cavities are hexagonal cavities.

4. Crimping die part (10) according to claim 3, characterized in that the hexagonal impression is a regular hexagonal impression.

5. Crimping die part (10) according to one of claims 1 to 4,

the protrusion (200) is disposed at a central portion of the inner surface.

6. Crimping die part (10) according to one of claims 1 to 4,

the protrusion (200) is integrally provided on the inner surface; or

The protrusion (200) is a fitting part fitted on the inner surface.

7. The crimping die part (10) according to claim 6, characterized in that, in the case where the protrusion (200) is a fitting part fitted on the inner surface, a recess (1014) is provided on the inner surface, and the fitting part is tightly fitted in the recess (1014) and fitted so that a part of the fitting part protrudes radially inward from the inner surface.

8. The crimping die component (10) according to claim 7, characterized in that the fitting component fits in the recess (1014) with an interference fit.

9. The crimping die part (10) according to claim 7, characterized in that the fitting part is a spherical part and the recess (1014) is a cylindrical recess or a hemispherical recess matching the fitting part in shape.

10. The crimping die component (10) of claim 9, wherein the crimping die component (10) is configured such that less than half of the spherical component protrudes radially inward from the inner surface when the spherical component is fitted within the recess (1014).

11. Crimping die part (10) according to claim 7, characterized in that in case the crimping cavities (11) are regular hexagonal cavities, the inner surfaces comprise three contiguous inner surfaces defining half of the regular hexagonal cavities, and the recess (1014) is provided on a middle inner surface (1012) of the three inner surfaces located in the middle.

12. Crimping die (1), characterized in that the crimping die (1) comprises two crimping die parts (10) according to any one of claims 1 to 11, the two crimping die parts (10) defining the crimping cavity (11) when engaged with each other.

13. Crimping die (1) according to claim 12, characterized in that a groove-shaped channel (1020) jointly defined by the two crimping die parts (10) is formed on the outer wall of the crimping die (1) when the two crimping die parts (10) are engaged with each other.

14. Crimping die (1) according to claim 12 or 13,

the two crimping die parts (10) are separate parts; alternatively, the first and second electrodes may be,

the two crimping die parts (10) are connected to each other and can be actuated to engage close to each other or to open away from each other.

15. Crimping die (1) according to claim 14, characterized in that the two crimping die parts (10) are connected to each other in an articulated manner in the case that the two crimping die parts (10) are connected to each other.

16. Crimping die (1) according to claim 12 or 13, characterized in, that the two crimping die parts (10) are identical.

17. Crimping die (1) according to claim 12 or 13, characterized in that the crimping die (1) is used for crimping a terminal with a cable or a cable with a cable.