WO2016037341A1 - Data interface metal housing, machining method thereof and machining device - Google Patents

Abstract

A data interface metal housing, machining method thereof and machining device, the machining method comprising the following steps: providing a metal flat tube (200); sleeving the metal flat tube (200) on a mold core (111), the mold core (111) being provided with, in an axial direction thereof, at least two mold core sections (114, 115, 116, 117) having different sectional dimensions; and utilizing at least two cavities (1221, 1222, 1223, 1224, 1225) to cooperate with the mold core (111) to extrude the metal flat tube (200), such that the metal flat tube (200) is extruded along the axial direction of the mold core (111) into metal tube sections (301, 302, 303, 304) respectively corresponding to each mold core section (114, 115, 116, 117). The method extrudes a metal tube by steps, thus manufacturing a complex irregularly-shaped metal tube having a poor stretchability into the metal housing having different shapes, and preventing a metal tube fracture.

Description

Metal casing of data interface, processing method thereof and processing equipment

[Technical Field]

The invention relates to the technical field of metal casings, in particular to a metal casing of a data interface, a processing method thereof and a processing device.

 【Background technique】

In the prior art, when manufacturing a metal casing, a method of forming a mold is generally used, which requires a high tensile modulus of the material, and if the product exceeds the limit of the stretching coefficient during the stretching process, the material will burst, and This method cannot realize the production of a heterogeneous product with a stretching depth to width ratio greater than 3 times.

In the prior art, for the production of a profiled product having a stretching depth to width ratio greater than 3 times, a pipe expansion and shrinkage technique is generally employed, which overcomes the disadvantage that the product material exceeds the limit by the slight deformation of the pipe. The pipe expansion and shrinkage technology directly forms the shape of the product by utilizing the slight expansion and contraction of the pipe wall, and in this way, it also overcomes the defects of wrinkling of the product due to the stretching material. However, the prior art expansion tube shrinkage technique can only be used in a round tube and cannot be used in the production of a flat tube.

 [Summary of the Invention]

The technical problem to be solved by the present invention is to provide a metal casing of a data interface, a processing method thereof and a processing device, which can form a metal tube with a complicated and complicated metal tube having poor tensile properties, and prevent wrinkles of the metal flat tube, and at the same time This embodiment can be applied to the production of flat tubes of various shapes.

In order to solve the above technical problem, a technical solution adopted by the present invention is to provide a method for processing a metal casing of a data interface, the method comprising the steps of: providing a metal flat tube; and arranging the metal flat tube on the core, Wherein the core is provided with at least two core segments of different cross-sectional dimensions along the axial direction of the core; the metal flat tubes are pressed by the at least two cavities and the cores to squeeze the metal flat tubes along the axis of the core Pressed into metal pipe segments corresponding to the respective core segments.

Wherein, the step of providing a metal flat tube comprises: providing a metal round tube; and extruding the metal round tube into a metal flat tube along a radial direction of the metal round tube.

Wherein, the step of using at least two cavities and a core to press the metal flat tube comprises: a tube expanding process for expanding the cross-sectional dimension of the metal flat tube, a shrink tube process for reducing the cross-sectional size of the metal flat tube, and the use At least one or a combination of a tube expansion or shrink tube forming process for forming an enlarged or reduced metal flat tube.

Wherein the core comprises a first core segment, a second core segment and a third core segment sequentially connected in the axial direction of the core, wherein the first core segment is at least one dimension perpendicular to the axis direction of the core The upper cross-sectional dimension is larger than the third core segment, and the cross-sectional dimension of the second core segment in at least one dimension gradually becomes larger during the process from the third core segment to the first core segment; using at least two cavities The step of pressing the metal flat tube with the core comprises: arranging the metal flat tube on the third core portion, wherein the metal flat tube has a smaller cross-sectional dimension in at least one dimension than the first core portion; The cavity and the core are combined to press the metal flat tube, so that the metal flat tube is expanded and set on the first core portion through the action of the second core portion.

The step of squeezing the metal flat tube by using at least two cavities and the core further comprises: using the second cavity and the core to press and press the outer surface of the first metal pipe section of the first core segment; The inner surface of the first metal pipe segment and the outer surface of the first core segment are attached to each other.

Wherein, the step of pressing the metal flat tube by using at least two cavities and the core further comprises: using the third cavity and the core to press and press the outer surface of the second metal pipe segment of the second core segment; The inner surface of the second metal pipe segment and the outer surface of the second core segment are attached to each other.

Wherein, the step of pressing the metal flat tube by using at least two cavities and the core further comprises: using the fourth cavity and the core to press and press the outer surface of the third metal pipe section of the third core segment; The inner surface of the third metal pipe segment and the outer surface of the third core segment are brought into contact with each other.

Wherein, the core further comprises a fourth core segment connected to one end of the third core segment away from the second core segment, and the cross-sectional dimension of the fourth core segment is gradually smaller in a direction away from the third core segment; The step of pressing the metal flat tube with the at least two cavities and the core further comprises: using the fifth cavity and the core to press and press the outer surface of the fourth metal pipe section of the fourth core segment so that The inner surface of the fourth metal pipe segment and the outer surface of the fourth core segment are attached to each other.

Wherein, the step of using the fifth cavity and the core to press and press the outer surface of the fourth metal pipe segment of the fourth core segment is the step of utilizing the first cavity and the core to press the metal flat pipe The third cavity is executed between the step of collating with the core and the extruded metal flat tube.

In order to solve the above technical problem, another technical solution adopted by the present invention is to provide a processing device for a metal casing of a data interface, the device comprising: a support platform, the support platform is provided with a core, wherein the core is along the core The core section is provided with at least two core sections of different cross-sectional dimensions, and allows the metal flat tube to be processed to be sleeved on the core; at least two extrusion stations, each of which has a cavity; The mechanism is configured to drive the support platform between different extrusion stations, so that the core and the cavity of different extrusion stations cooperate to press the metal flat tube, and then the metal flat tube is extruded along the axis direction of the core Metal pipe segments corresponding to the respective core segments.

Wherein, at least two extrusion stations include: a expansion tube station for expanding the cross-sectional size of the metal flat tube, a shrink tube station for reducing the cross-sectional size of the metal flat tube, and a metal flat for expanding or contracting The tube is at least one or a combination of a formed expansion tube or a shrink tube forming station.

Wherein the core comprises a first core segment, a second core segment and a third core segment sequentially connected in the axial direction of the core, wherein the first core segment is at least one dimension perpendicular to the axis direction of the core The upper cross-sectional dimension is larger than the third-type core segment, and the cross-sectional dimension of the second-type core segment in at least one dimension gradually becomes larger during the process from the third-type core segment to the first-type core segment, and the metal flat tube is sleeved on In the third core segment, wherein the cross section of the metal flat tube in at least one dimension is smaller than the first core segment, at least two extrusion stations are provided with a expansion tube station, and the expansion tube station is provided with the first cavity portion The first cavity and the core are combined with the extruded metal flat tube, so that the metal flat tube is expanded and set on the first core portion by the action of the second core segment.

Wherein, at least two extrusion stations include a first expansion tube forming station, the first expansion tube forming station is provided with a second cavity, and the second cavity and the core are sleeved and sleeved on the first core segment The outer surface of the first metal pipe section such that the inner surface of the first metal pipe section and the outer surface of the first core section are attached to each other.

Wherein, at least two extrusion stations include a second expansion tube forming station, the second expansion tube forming station is provided with a third cavity, and the third cavity and the core are sleeved and sleeved on the second core segment The outer surface of the second metal pipe segment such that the inner surface of the second metal pipe segment and the outer surface of the second core segment abut each other.

Wherein, at least two extrusion stations include a third expansion tube forming station, the third expansion tube forming station is provided with a fourth cavity, and the fourth cavity and the core are sleeved and sleeved on the third core segment The outer surface of the third metal pipe segment is such that the inner surface of the third metal pipe segment and the outer surface of the third core segment are attached to each other.

Wherein, the core further comprises a fourth core segment connected to one end of the third core segment away from the second core segment, and the cross-sectional dimension of the fourth core segment is gradually smaller in a direction away from the third core segment. At least two extrusion stations include a shrinking station, and the shrinking station is provided with a fifth cavity, and the fifth cavity is combined with the core to be sleeved outside the fourth metal pipe segment of the fourth core segment The surface is such that the inner surface of the fourth metal pipe segment and the outer surface of the fourth core segment are attached to each other.

Wherein, the shrinking pipe station is located between the expansion pipe station and the first expansion pipe forming station.

Wherein, the device further comprises a loading station for cutting the metal flat tube to be processed on the core, and a loading station for cutting the processed metal flat tube from the processing unit. Remove the core.

Wherein, the transmission mechanism is an indexing disc, and at least two pressing stations are arranged around the circumference of the indexing disc at a circumferential interval of the indexing disc, and the supporting platform is arranged on the indexing disc and is rotated by the indexing disc. Drive between at least two extrusion stations.

In order to solve the above technical problem, another technical solution adopted by the present invention is to provide a metal outer casing of a data interface formed by a metal flat tube without joint seams, wherein the metal outer casing includes an axial direction along the metal flat tube At least two metal pipe segments of different cross-sectional dimensions.

Wherein the metal casing comprises a first metal pipe section, a second metal pipe section and a third metal pipe section sequentially connected along an axial direction of the metal flat pipe, wherein the first metal pipe section is in at least one dimension perpendicular to an axial direction of the metal flat pipe The cross-sectional dimension is larger than the third metal pipe section, and the cross-sectional dimension of the second metal pipe section in at least one dimension gradually becomes larger during the process from the third metal pipe section to the first metal pipe section.

Wherein, the metal casing further comprises a fourth metal pipe section connected to one end of the third metal pipe section away from the second metal pipe section, and the cross-sectional dimension of the fourth metal pipe section is gradually reduced in a direction away from the third metal pipe section.

Wherein, the outer surface of the fourth metal pipe section is in a rounded shape.

Wherein, the outer surface of the second metal pipe section is curved inwardly from the first metal pipe section to the third metal pipe section.

The data interface is a USB data interface.

The invention has the beneficial effects that, different from the prior art, the invention firstly sleeves the metal flat tube on the core, wherein the core is provided with at least two core segments of different cross-sectional dimensions along the axial direction of the core. Then, the metal flat tube is pressed by using at least two cavities and a core to press the metal flat tube along the axial direction of the core into metal tube segments respectively corresponding to the respective core segments. Thus, the present invention can form a metal casing with a complicated and complicated metal pipe having poor tensile properties by stepwise extrusion of the metal flat pipe, and prevent the metal flat pipe from wrinkling, and the present embodiment can be applied to each The production of flat tubes of various shapes.

 [Description of the Drawings]

1 is a schematic structural diagram of a processing apparatus for a metal casing of a data interface according to an embodiment of the present invention;

2 is a schematic structural view of the support platform shown in FIG. 1;

Figure 3 is a schematic structural view of a metal flat tube to be processed;

Figure 4 is a schematic structural view of a core and a processed metal flat tube;

Figure 5 is a schematic structural view of an extrusion member;

Figure 6 is a schematic structural view of the upper mold;

Figure 7 is a schematic view showing the structure when the core and the cavity are combined to press the metal flat tube;

8 to 11 are schematic structural views of the second cavity to the fifth cavity, respectively;

12 is a flowchart of a method for processing a metal casing of a data interface according to an embodiment of the present invention;

Figure 13 is a detailed flow chart of step S3 of the processing method shown in Figure 12;

Figure 14 is a schematic view showing the structure of a processed metal casing.

 【detailed description】

Certain terms are used throughout the description and claims to refer to the particular embodiments. Those skilled in the art will appreciate that a manufacturer may refer to the same component by a different noun. The present specification and claims do not use the difference in names as a means of distinguishing components, but rather as a basis for distinguishing between functional differences of components. The invention will now be described in detail in conjunction with the drawings and embodiments.

Please refer to FIG. 1. FIG. 1 is a schematic structural diagram of a metal casing processing apparatus for a data interface according to an embodiment of the present invention. As shown in FIG. 1, the metal casing processing apparatus 100 of the data interface of the present embodiment includes a support platform 101, at least two stations 102, and a transmission mechanism 103.

Please refer to FIG. 2 together. FIG. 2 is a schematic structural view of the support platform shown in FIG. 1 . As shown in FIG. 2, the support platform 101 includes a base 110, a guide post 112, and a positioning block 113. At least one core 111 is also disposed on the support platform 101. Wherein, the core 111, the guide post 112 and the positioning block 113 are disposed on the base 110. The core 111 is provided with at least two core segments of different cross-sectional dimensions along the axial direction of the core, and allows the metal flat tube 200 to be processed. (shown in FIG. 3) is sleeved on the core 111. The guide post 112 is used to guide the movement of the upper mold (described below) and the positioning block 113 is used to position the upper mold. In this embodiment, the support platform 101 corresponds to the lower mold.

In this embodiment, at least two stations 102 may include a loading station 1, at least two extrusion stations, a blanking station 7, and an empty station 8. Among them, the extrusion station of the embodiment has five extrusion stations 2-6.

The support platform 101 may be one or more, preferably, the number of the support platforms 101 may be the same as the number of the stations 102.

The loading station 1 is used for arranging the metal flat tube 200 to be processed on the core 111. The blanking station 7 is used to remove the processed metal flat tube 300 (shown in FIG. 4) from the core 111. Specifically, at the loading station 1, a robot 12 can be disposed, and the robot 12 sleeves the metal flat tube 200 to be processed on the core 111. At the unloading station 7, a robot 13 may be provided, and the robot 13 removes the processed flat metal tube 300 from the core 111.

The extrusion station 2-6 includes a tube expansion station for expanding the cross-sectional size of the metal flat tube, a shrink tube station for reducing the cross-sectional size of the metal flat tube, and a molding tube for expanding or contracting the metal flat tube At least one or a combination of expansion tubes or shrink tube forming stations.

The number and type of specific pressing stations are set according to the shape and structure of the core 111.

Each station 102 includes an extrusion 121 and an upper mold 122. For details, please refer to FIG. 5 and FIG. 6. FIG. 5 is a schematic structural view of the extrusion member 121, and FIG. 6 is a schematic structural view of the upper mold 122. First, as shown in FIG. 5, the extrusion member 121 may include a gas-liquid boosting cylinder 1211, a pressure mechanism 1212, and a support member 1213. The steam-liquid boosting cylinder 1211 is used to power the pressure mechanism 1212, the pressure mechanism 1212 is used to press the upper mold 122, and the support member 1213 is used to support the transmission mechanism 103 to prevent the transmission mechanism 103 from being deformed.

As shown in FIG. 6, the upper mold 122 is provided with a cavity 1220. It should be understood that the configuration of the cavities 1220 at different extrusion stations is different. It is specifically set according to the structure of the extruded core 111.

Referring to FIG. 1 again, the transmission mechanism 103 is configured to drive the support platform 101 between different extrusion stations, so that the core 111 and the cavity 1220 of different extrusion stations cooperate with the extrusion of the metal flat tube 200, thereby The metal flat tube 200 is extruded in the axial direction of the core 111 into metal tube segments respectively corresponding to the respective core segments.

The transmission mechanism 103 of the embodiment is an indexing disc, and the pressing station 2-6 is disposed around the circumference of the indexing disc at a circumferential interval of the indexing disc. The supporting platform 101 is disposed on the indexing disc and passes the indexing. The disc rotation is driven between the extrusion stations 2-6.

Specifically, referring to FIG. 7 , FIG. 7 is a schematic structural view of the core 111 and the cavity 1220 when the metal flat tube 200 is pressed. First, in the extrusion station 2 shown in FIG. 1, the upper mold 122 presses down the metal flat tube 200 as shown in FIG. 2, so that the core 111 on the support platform 101 is pressed into the metal flat tube 200. It becomes a metal flat tube 300. The transmission mechanism 103 then drives the support platform 101 to the subsequent extrusion station 3-6, so that the metal flat tube 300 with the core 111 nested on the support platform 101 cooperates with the cavity 1220 of different extrusion stations. Squeeze and gradually complete the forming operation of the metal casing.

Referring to FIG. 4 again, since the metal flat tube is formed by the extrusion process of the core 111 and the cavity 1220, the structure of the processed metal flat tube is the same as that of the core 111. Therefore, FIG. 4 is a schematic structural view of the processed metal flat tube 300, which is also a schematic structural view of the core 111. As shown in FIG. 4, the core 111 of the present embodiment includes a first core segment 114, a second core segment 115, and a third core segment 116 which are sequentially connected in the axial direction of the core 111. Wherein the cross-sectional dimension of the first core segment 114 in at least one dimension perpendicular to the axial direction of the core 111 is greater than the third core segment 116, and the cross-sectional dimension of the second core segment 115 in at least one dimension is from the third The core segment 116 gradually becomes larger during the process of the first core segment 114.

According to the foregoing, at the loading station 1, the robot 12 sets the metal flat tube 200 to be processed on the third core segment 116, wherein the cross-sectional dimension of the metal flat tube 200 in at least one dimension is smaller than the first Core segment 114.

The transmission structure 103 drives the support platform 101 to the extrusion station 2, the extrusion station 2 is a expansion tube station, and the corresponding upper mold 122 is provided with a first cavity 1221 (shown in FIG. 6). A cavity 1221 is pressed with the core 111 to press the metal flat tube 200, so that the metal flat tube 200 is expanded and disposed on the first core segment 114 by the action of the second core segment 115, and the preliminary metal flat tube 300 is obtained. .

The transmission structure 103 drives the support platform 101 to the extrusion station 3, and the extrusion station 3 is a first expansion tube forming station, and the corresponding upper mold 122 is provided with a second cavity 1222 (as shown in FIG. 8). The second cavity 1222 and the core 111 are sleeved and sleeved on the outer surface of the first metal pipe segment 301 of the first core segment 114 such that the inner surface of the first metal pipe segment 301 and the first core segment 111 The outer surfaces of each other fit together.

The transmission structure 103 drives the support platform 101 to the extrusion station 4, and the extrusion station 4 is a second expansion tube forming station, and the corresponding upper mold 122 is provided with a third cavity 1223 (as shown in FIG. 9). The third cavity 1223 and the core 111 are sleeved and sleeved on the outer surface of the second metal pipe section 302 of the second core segment 115 such that the inner surface of the second metal pipe segment 302 and the second core segment 115 The outer surfaces of each other fit together.

The transmission structure 103 drives the support platform 101 to the extrusion station 5, and the extrusion station 5 is a third expansion tube forming station, and the corresponding upper mold 122 is provided with a fourth cavity 1224 (as shown in FIG. 10). The fourth cavity 1224 and the core 11 are pressed and sleeved on the outer surface of the third metal pipe section 303 of the third core segment 116 such that the inner surface of the third metal pipe section 303 and the third core segment 116 The outer surfaces of each other fit together.

The core 111 further includes a fourth core segment 117 coupled to an end of the third core segment 116 remote from the second core segment 115, the cross-sectional dimension of the fourth core segment 117 being in a direction away from the third core segment 116. Gradually become smaller.

The transmission structure 103 drives the support platform 101 to the pressing station 6, the pressing station 6 is a shrinking station, and the corresponding upper mold 122 has a fifth cavity 1225 (as shown in FIG. 11). The five-cavity 1225 and the core 111 are sleeved and sleeved on the outer surface of the fourth metal pipe section 304 of the fourth core segment 117 such that the inner surface of the fourth metal pipe section 304 and the outer surface of the fourth core segment 117 Fit each other.

Among them, the extrusion station 3 can also be set as the shrinking station, and the subsequent extrusion station 4-6 is the expansion station, even if the shrinking station is located at the expansion station and the first expansion forming station. between.

As described above, in this embodiment, the metal flat tube is first expanded, and then the metal flat tube is extruded step by step, and the special-shaped metal tube with poor tensile properties can be made into a metal outer casing, and the metal flat tube is prevented. At the same time, the present embodiment can be applied to the production of flat tubes of various shapes.

The embodiment of the invention provides a new tube expansion tube shrinking process, which can solve the problem that the stretching mold can not be stretched after the stretching coefficient is exceeded, and is not limited by the material stretching coefficient, and only requires the product shape to expand in the metal. Within the compression capacity, the arc transition of different cross sections of the metal can be realized, which enriches the appearance of the product. The metal casing can be a metal pipe without joint seams, and is suitable for various data interface shells, and is particularly suitable for high-strength spring steel. Tool steel, high-manganese steel, etc. are curved surfaces of the metal casing of the material, and its strength and anti-deformation ability are more than twice that of ordinary iron and stainless steel.

The present invention also provides a method of processing a metal casing of a data interface based on the processing apparatus 100 described above, as specifically shown in FIG.

As shown in FIG. 12, the processing method of the embodiment of the present invention includes the following steps:

Step S1: providing a metal flat tube.

Specifically, a metal round tube is provided, and the metal round tube is extruded into a metal flat tube along a radial direction of the metal round tube.

Wherein, the metal round tube may be a seamless metal round tube.

Step S2: The metal flat tube is sleeved on the core, wherein the core is provided with at least two core segments of different cross-sectional dimensions along the axial direction of the core.

Wherein the core comprises a first core segment, a second core segment and a third core segment sequentially connected in the axial direction of the core, wherein the first core segment is at least one dimension perpendicular to the axis direction of the core The upper cross-sectional dimension is greater than the third core segment, and the cross-sectional dimension of the second core segment in at least one dimension gradually increases during the process from the third core segment to the first core segment. The core further includes a fourth core segment coupled to one end of the third core segment away from the second core segment, the cross-sectional dimension of the fourth core segment being progressively smaller in a direction away from the second core segment.

Step S3: using at least two cavities and a core to press the metal flat tube to press the metal flat tube along the axial direction of the core into metal tube segments respectively corresponding to the respective core segments.

In this step, specifically, a tube expanding process for expanding the cross-sectional size of the metal flat tube, a shrinking tube process for reducing the cross-sectional size of the metal flat tube, and a tube for forming the expanded or reduced metal flat tube or At least one or a combination of shrink tube forming processes.

Therefore, the step specifically includes the following steps:

Step S31: The metal flat tube is sleeved on the third core segment, wherein the metal flat tube has a smaller cross-sectional dimension in at least one dimension than the first core portion.

Step S32: using the first cavity and the core to press and extrude the metal flat tube, so that the metal flat tube is expanded and set on the first core portion through the action of the second core segment.

Step S33: using the second cavity and the core to press and press the outer surface of the first metal pipe segment of the first core segment so that the inner surface of the first metal pipe segment and the outer surface of the first core segment are mutually fit.

Step S34: using the third cavity and the core to press and press the outer surface of the second metal pipe segment of the second core segment so that the inner surface of the second metal pipe segment and the outer surface of the second core segment are mutually fit.

Step S35: using the fourth cavity and the core to press and press the outer surface of the third metal pipe segment of the third core segment so that the inner surface of the third metal pipe segment and the outer surface of the third core segment are mutually fit.

Step S36: using the fifth cavity and the core to press and press the outer surface of the fourth metal pipe segment of the fourth core segment so that the inner surface of the fourth metal pipe segment and the outer surface of the fourth core segment are mutually fit.

Wherein, step S36 can be performed between step S32 and step S33.

As described above, in this embodiment, the metal flat tube is first expanded, and then the metal flat tube is extruded step by step, and the special-shaped metal tube with poor tensile properties can be made into a metal outer casing, and the metal flat tube is prevented. At the same time, the present embodiment can be applied to the production of flat tubes of various shapes.

The present invention also provides a metal casing made of a data interface made by the processing method and processing equipment described above. For details, please refer to FIG. 4, the metal casing 300 is formed by a metal flat tube without joint seams, wherein The metal casing 300 includes at least two metal pipe sections of different cross-sectional dimensions disposed along the axial direction of the metal flat pipe. Specifically, the metal casing 300 includes a first metal pipe section 301, a second metal pipe section 302 and a third metal pipe section 303 which are sequentially connected in the axial direction of the metal casing, wherein the first metal pipe section 301 is at least perpendicular to the axial direction of the metal casing 300. The cross-sectional dimension in one dimension is greater than the third metal tube section 303, and the cross-sectional dimension of the second metal tube section 302 in at least one dimension gradually increases during the process from the third metal tube section 303 to the first metal tube section 301. The metal casing 300 further includes a fourth metal pipe section 304 connected to one end of the third metal pipe section 303 remote from the second metal pipe section 302, and the cross-sectional dimension of the fourth metal pipe 304 is gradually reduced in a direction away from the third metal pipe section 302.

Wherein, the outer surface of the fourth metal pipe section 304 is preferably in a rounded shape.

Preferably, as shown in FIG. 14, the outer surface of the second metal pipe section 302 may also be curved inwardly from the first metal pipe section 301 to the third metal pipe section 303.

Preferably, the material of the metal casing 300 may include at least one of spring steel, tool steel, and high manganese steel.

For example, the metal case can be used for USB (Universal Serial Bus, Universal Serial Bus) data interface, as a metal casing of the USB data interface, of course, can also be applied to other types of data interfaces, and is not specifically limited herein.

The above is only the embodiment of the present invention, and is not intended to limit the scope of the invention, and the equivalent structure or equivalent process transformations made by the description of the invention and the drawings are directly or indirectly applied to other related technologies. The fields are all included in the scope of patent protection of the present invention.

Claims (26)

1. A method of processing a metal casing of a data interface, characterized in that the method comprises the following steps:

   Providing a metal flat tube;

   The metal flat tube is sleeved on the core, wherein the core is provided with at least two core segments of different cross-sectional dimensions along the axial direction of the core;

   Pressing the metal flat tube with at least two cavities and the core to press the metal flat tube along the axial direction of the core into metal tube segments respectively corresponding to the core segments .
2. The method of claim 1 wherein said step of providing a metal flat tube comprises:

   Providing a metal round tube;

   The metal round tube is extruded into the metal flat tube along a radial direction of the metal tube.
3. The method according to claim 1, wherein said step of cooperating said metal flat tube with said core by at least two cavities comprises: expanding a cross-sectional dimension of said metal flat tube a tube expanding process, a shrink tube process for reducing the cross-sectional size of the metal flat tube, and at least one or a combination of a tube expanding or shrink tube forming process for forming the enlarged or reduced metal flat tube.
4. The method according to claim 1, wherein said core comprises a first core segment, a second core segment and a third core segment sequentially connected in the axial direction of said core, wherein said a cross-sectional dimension of the first core segment in at least one dimension perpendicular to an axial direction of the core is greater than the third core segment, and a cross-sectional dimension of the second core segment in the at least one dimension is Gradually increasing from the third core segment to the first core segment;

   The step of using the at least two cavities to cooperate with the core to press the metal flat tube includes:

   The metal flat tube is sleeved on the third core segment, wherein the metal flat tube has a smaller cross-sectional dimension in the at least one dimension than the first core portion;

   And compressing the metal flat tube by using the first cavity and the core to expand the metal flat tube on the first core segment through the action of the second core segment.
5. The method of claim 4, wherein the step of squeezing the metal flat tube with the core by using at least two cavities further comprises:

   Engaging the outer surface of the first metal pipe segment of the first core segment with the second cavity and the core to make the inner surface of the first metal pipe segment and the first core The outer surfaces of the segments fit together.
6. The method according to claim 5, wherein the step of pressing the metal flat tube with the at least two cavities and the core further comprises:

   Engaging the outer surface of the second metal pipe segment of the second core segment with the third cavity and the core to make the inner surface of the second metal pipe segment and the second core The outer surfaces of the segments fit together.
7. The method according to claim 6, wherein the step of pressing the metal flat tube with the at least two cavities and the core further comprises:

   Engaging the outer surface of the third metal pipe segment of the third core segment with the fourth cavity and the core to make the inner surface of the third metal pipe segment and the third core The outer surfaces of the segments fit together.
8. The method of claim 7 wherein said core further comprises a fourth core segment coupled to an end of said third core segment remote from said second core segment, said fourth type The cross-sectional dimension of the core segment is gradually reduced in a direction away from the third core segment;

   The step of using the at least two cavities to cooperate with the core to press the metal flat tube further includes:

   Engaging the outer surface of the fourth metal pipe segment of the fourth core segment with the fifth cavity and the core to make the inner surface of the fourth metal pipe segment and the fourth core The outer surfaces of the segments fit together.
9. The method according to claim 8, wherein the step of squeezing the outer surface of the fourth metal pipe section of the fourth core segment with the core cavity by the fifth cavity is The step of using the first cavity to press the metal flat tube in cooperation with the core is performed between the step of pressing the metal flat tube by the second cavity and the core.
10. A processing device for a metal casing of a data interface, characterized in that the device comprises:

    a supporting platform, wherein the supporting platform is provided with a core, wherein the core is provided with at least two core segments of different cross-sectional dimensions along the axial direction of the core, and allows the metal flat tube to be processed to be sleeved on On the core;

    At least two extrusion stations, each of the extrusion stations being provided with at least one cavity;

    a transmission mechanism for driving the support platform between different extrusion stations, so that the core and the cavity of different extrusion stations cooperate to press the metal flat tube, and then the metal flat tube The metal pipe segments corresponding to the respective core segments are respectively extruded in the axial direction of the core.
11. The apparatus according to claim 10, wherein said at least two extrusion stations comprise: a expansion tube station for expanding a sectional size of said metal flat tube, and a reduction of said metal flat tube A shrinkage station of cross-sectional dimensions and at least one or combination of expansion or shrinkage forming stations for forming the enlarged or reduced metal flat tube.
12. The apparatus according to claim 10, wherein said core comprises a first core segment, a second core segment and a third core segment sequentially connected in the axial direction of said core, wherein said core a cross-sectional dimension of the first core segment in at least one dimension perpendicular to an axial direction of the core is greater than the third core segment, and a cross-sectional dimension of the second core segment in the at least one dimension is Gradually increasing from the third core segment to the first core segment, the metal flat tube is sleeved on the third core segment, wherein the metal flat tube is at least The cross-sectional dimension in one dimension is smaller than the first core segment, the at least two extrusion stations are provided with a expansion tube station, and the expansion tube station is provided with a first cavity, the first cavity The metal flat tube is pressed in cooperation with the core to expand the metal flat tube on the first core portion through the action of the second core portion.
13. The apparatus according to claim 12, wherein said at least two extrusion stations comprise a first expansion molding station, said first expansion molding station being provided with a second cavity, said a two-cavity and a core are sleeved and sleeved on an outer surface of the first metal pipe section of the first core segment to make an inner surface of the first metal pipe segment and the first core segment The outer surfaces fit together.
14. The apparatus according to claim 13, wherein said at least two extrusion stations comprise a second expansion tube forming station, and said second expansion tube forming station is provided with a third cavity, said a three-cavity and a core are sleeved and sleeved on an outer surface of the second metal pipe section of the second core segment to make an inner surface of the second metal pipe segment and the second core segment The outer surfaces fit together.
15. The apparatus according to claim 14, wherein said at least two extrusion stations comprise a third expansion tube forming station, and said third expansion tube forming station is provided with a fourth cavity, said Forming a four-cavity with the core and extruding the outer surface of the third metal pipe section of the third core segment to make the inner surface of the third metal pipe segment and the third core segment The outer surfaces fit together.
16. The apparatus according to claim 15, wherein said core further comprises a fourth core segment connected to an end of said third core segment away from said second core segment, said fourth type The cross-sectional dimension of the core segment is gradually reduced in a direction away from the third core segment, the at least two extrusion stations including a shrink tube station, and the shrink tube station is provided with a fifth cavity, utilizing The fifth cavity is sleeved with the core and sleeved on the outer surface of the fourth metal pipe section of the fourth core segment to make the inner surface of the fourth metal pipe segment and the fourth core segment The outer surfaces of each other fit together.
17. The apparatus of claim 16 wherein said shrink tube station is located between said expansion tube station and said first tube forming station.
18. The apparatus according to claim 10, wherein said apparatus further comprises a loading station and a blanking station, said loading station for arranging said metal flat tube to be processed On the core, the blanking station is used to remove the processed metal flat tube from the core.
19. The apparatus according to claim 10, wherein said transmission mechanism is an indexing disk, and said at least two pressing stations are circumferentially spaced apart from said indexing disk to be disposed on said indexing disk The support platform is disposed on the indexing plate and is driven between the at least two pressing stations by the indexing disk rotation.
20. A metal casing of a data interface, characterized in that the metal casing is formed of a metal flat pipe without joint seams, wherein the metal casing comprises at least two different cross-sectional dimensions disposed along an axial direction of the metal flat pipe Metal pipe section.
21. The metal casing according to claim 20, wherein the metal casing comprises a first metal pipe section, a second metal pipe section and a third metal pipe section sequentially connected along an axial direction of the metal flat pipe, wherein the a cross-sectional dimension of a metal pipe section in at least one dimension perpendicular to an axial direction of the metal flat pipe is greater than the third metal pipe section, and a cross-sectional dimension of the second metal pipe section in at least one dimension is from the third The metal pipe section gradually becomes larger during the process of the first metal pipe section.
22. The metal casing according to claim 21, wherein said metal casing further comprises a fourth metal pipe section connected to an end of said third metal pipe section away from said second metal pipe section, said fourth metal pipe section The cross-sectional dimension tapers in a direction away from the third metal pipe section.
23. The metal casing according to claim 22, wherein the outer surface of the fourth metal pipe section is in a rounded shape.
24. The metal casing according to claim 21, wherein the outer surface of the second metal pipe section is curved inwardly from the first metal pipe section to the third metal pipe section.
25. The metal casing according to claim 20, wherein the material of the metal casing comprises at least one of spring steel, tool steel, and high manganese steel.
26. A metal casing according to any one of claims 20-25, wherein the data interface is a USB data interface.