CN112570610B

CN112570610B - Manufacturing process of feed element

Info

Publication number: CN112570610B
Application number: CN202011279840.8A
Authority: CN
Inventors: 林晖
Original assignee: Foshan Yinxin Precious Metal Materials Co ltd
Current assignee: Foshan Yinxin Precious Metal Materials Co ltd
Priority date: 2020-11-16
Filing date: 2020-11-16
Publication date: 2021-11-23
Anticipated expiration: 2040-11-16
Also published as: CN112570610A

Abstract

The invention relates to the production field of communication equipment, in particular to a manufacturing process of a feed element, which adopts a process which is not lathe processing but a process scheme combining a cold heading process and a die assembly process, wherein the manufacturing process can be used for processing not only alloy but also pure metal with poor strength such as copper, and when copper is processed, rod-shaped raw materials of the feed element only receive the action of processing equipment at the end part, and other parts are clamped by a first strip-shaped clamping hole or a second strip-shaped clamping hole, so that the feed element is not deformed when the feed element axially receives the action of external force, thereby ensuring the processing precision of products; in addition, the shapes of the cold heading die head and the die closing die head can be designed or replaced according to product design or application requirements, more products are produced by utilizing the manufacturing process, and the product precision, quality and production efficiency are greatly improved.

Description

Manufacturing process of feed element

Technical Field

The invention relates to the field of communication equipment production, in particular to a manufacturing process of a feed element.

Background

The quality of a radiating unit product in the base station antenna industry is very important, and the feed element directly affects the quality of the radiating unit product, so the structural design of the feed column and the mounting structural design of the feed column and other mounting positions of the radiating unit are very important.

The prior art does not guarantee the product quality of the radiating element, and a person skilled in the art has made many technical developments, such as chinese patent with patent publication number CN110994179A, which discloses a feeding component and a radiating element; the radiation unit comprises two dipoles and two feed components which respectively feed the two dipoles, wherein the two feed components are positioned in the same polarization direction, one end of each feed component is electrically connected with the corresponding dipole, and the other end of each feed component is combined by the feed end of the radiation unit which is inherent and physical; the feed part adopts a coaxial line; the feed port is integrated in the balun structure, the feed port comprises a feed hole formed in a base of the balun structure and a feed component arranged in the feed hole, and the feed component comprises a feed column and a feed medium; the bottom of the balun structure is provided with a connecting terminal which extends along the circumferential direction of the feed hole and towards the direction far away from the dipole, the side wall of the connecting terminal is used as the side wall of the feed hole, and meanwhile, the length of the connecting terminal is matched with the length of the feed assembly. The connection terminal is used for connecting an outer conductor of an external cable with an outer conductor of the feeding component, the feeding column of the feeding component is used for connecting an inner conductor of the external cable with an inner conductor of the feeding component, and a feeding medium is sleeved outside the feeding column, so that capacitive coupling characteristics exist between two conductive elements corresponding to the feeding column and the connection terminal. Briefly, the function of the feed post in this patent is to conductively connect the inner conductor lines of the plurality of feed members with the inner conductor of the external cable.

Because of the shape and precision requirements of the feed post, the existing feed post is machined by a lathe, but the lathe machining freedom degree is limited, and the machining time cost is relatively high, so that the feed post can only be produced into a basic structure similar to a dumbbell shape by the lathe machining, as shown in fig. 3 of the Chinese patent with the patent application number of 201911422004.8, the feed post comprises a feed post body and wiring ends respectively arranged at two ends of the feed post body, wherein the radial size of the wiring ends is larger than that of the feed post body, and the wiring ends are regular cylindrical structures obtained by the lathe machining mode; because the feeding part is not only one, and the extending directions of the inner leads of the feeding parts on the terminals are not consistent, and included angles exist among the inner leads; the extending direction of the inner conductor of the feed part and the inner conductor of the external cable on the feed column wiring terminal is also provided with a specified included angle; if the end face of the wiring end of the feed column is of a plane structure, the welding structure of the inner conductor and the wiring end is difficult to ensure to be firm enough and the position accuracy is difficult to ensure; meanwhile, because the extension length of the inner conductor is limited, if the inner conductor cannot be welded on the wiring terminal accurately according to the inherent included angle between the feed component and the external cable, the inner conductor cannot be welded on the appointed wiring terminal accurately and firmly, even if a plurality of inner conductors are welded on the appointed wiring terminal forcibly under the action of external force, because a part of the inner conductors and the wiring terminal have a pulling effect, the inner conductors are easy to fall off or damage after a long time, and the actual assembly operation difficulty of the transmitting unit is greatly increased by the welding structure and the welding mode.

Disclosure of Invention

In view of the above-mentioned drawbacks, an object of the present invention is to provide a manufacturing process of a feeding element.

In order to achieve the purpose, the invention adopts the following technical scheme:

a process for manufacturing a feed element, comprising the steps of:

(1) cold heading process

a. The cold heading telescopic driving device restores to the initial position, so that the telescopic driving end is contracted and far away from the cold heading base, the cold heading die head is installed to the end face of the telescopic driving end of the cold heading telescopic driving device, and the cold heading die head is arranged opposite to the end face of the first strip-shaped clamping hole;

b. inserting one end of a raw material into the first strip-shaped clamping hole, fixing and limiting the raw material in the first strip-shaped clamping hole, and enabling the raw material to extend out of an opening at one end close to the cold heading telescopic driving device by a set length;

c. starting the cold heading telescopic driving device to enable the telescopic driving end of the cold heading telescopic driving device to drive the cold heading die head to perform cold heading operation on one end of the raw material to form a first feed end;

d. the raw material is subjected to cold heading operation to obtain a semi-finished product, and the semi-finished product is taken out of the first strip-shaped hole;

(2) mold closing process

e. The mold closing telescopic driving device restores the initial position, so that the telescopic driving end is contracted and far away from the mold closing base, and the left sliding seat and the right sliding seat are far away from each other in a back-to-back manner; mounting the die closing die head to the end face of a telescopic driving end of the die closing telescopic driving device;

f. the left sliding seat and the right sliding seat slide oppositely until the left sliding seat and the right sliding seat are tightly attached, meanwhile, a semi-finished product is clamped into the first strip-shaped clamping hole formed by splicing the two strip-shaped clamping grooves, and the other end, opposite to the first feed end, of the semi-finished product extends out of an opening at one end close to the die assembly telescopic driving device by a set length;

g. opening the die assembly telescopic driving device to enable a telescopic driving end of the die assembly telescopic driving device to drive the die assembly die head to perform cold heading operation on one end of the finished product to form a second feed end;

h. and (5) completing the die assembly operation of the semi-finished product to obtain the feed element.

Preferably, in the step b, one end of the raw material is inserted into the first bar-shaped clamping hole, fixed and limited, and the raw material is extended out by a set length by the following operations: inserting the thimble element into a first strip-shaped clamping hole to block one end of the first strip-shaped clamping hole, and then inserting the raw material into the first clamping hole from the other end of the first clamping hole until the raw material is contacted with the thimble element; and then the thimble piece props against the raw material to extend towards the direction of the cold heading telescopic driving device until the extending distance is up to the set distance.

Preferably, the operation of taking out the semi-finished product from the first strip-shaped hole in the step d is as follows: and the telescopic driving end of the cold-heading telescopic driving device is contracted, the thimble device extends the thimble piece to the direction of the cold-heading telescopic driving device along the axis direction of the first strip-shaped hole according to a control instruction, and a semi-finished product is ejected out of the first strip-shaped hole.

Preferably, the cold heading process further comprises a preparation stage before the cold heading process: preparing a raw material of a rod-shaped conductive metal material according to the product requirement, and a cold heading die head and a die closing die head corresponding to the shape and structure required by the product.

Preferably, at least one side in the die cavity of the cold heading die head is of a planar structure, and at least one side of the first feed broken end obtained by processing the cold heading die head is provided with a positioning plane; in the step, after the die assembly die head is installed on the end face of the telescopic driving end of the die assembly telescopic driving device, the telescopic driving end of the die assembly telescopic driving device is rotated to rotate the die assembly die head to a corresponding position according to the requirement of an included angle between a first feed end and a second feed end in product design by taking the position of the positioning plane for horizontal downward clamping as a reference.

Preferably, a pre-positioning step is further provided after the step e and before the step f:

e1. placing the semi-finished product in a pre-positioning groove, and ensuring that the positioning surface is attached to the bottom surface of the pre-positioning groove;

e2. the material clamping assembly is driven by the vertical telescopic driving device and the translation telescopic driving device to take the semi-finished product out of the pre-positioning groove and place the semi-finished product on a horizontal sliding surface of the fixed base in a translation mode;

e3. and the left sliding seat and the right sliding seat slide in opposite directions along the horizontal sliding surface until the left sliding seat and the right sliding seat are tightly attached under the driving of the lateral telescopic driving device, and the semi-finished product is clamped into a second strip-shaped clamping groove formed by splicing the two strip-shaped clamping grooves.

Preferably, the raw material is copper.

The invention provides a manufacturing process of a feed element, which adopts a process which is not lathe processing but a process scheme combining a cold heading process and a die assembly process, wherein the manufacturing process can be used for processing by using alloy and can also be used for processing pure metals with poor strength such as copper, and when copper is processed, rod-shaped raw materials only receive the action of processing equipment at the end part, and other parts are clamped by a first strip-shaped clamping hole or a second strip-shaped clamping hole, so that the technology axially receives the action of external force and cannot deform, thereby ensuring the processing precision of products; in addition, the shapes of the cold heading die head and the die closing die head can be designed or replaced according to product design or application requirements, more products are produced by utilizing the manufacturing process, and the product precision, quality and production efficiency are greatly improved.

Drawings

Fig. 1 is a schematic perspective view of the feeding element according to an embodiment of the present invention;

FIG. 2 is a schematic perspective view of the embodiment of FIG. 1 from another perspective;

FIG. 3 is a schematic structural view of an embodiment of the present invention assembled with the first and second inner conductors;

fig. 4 is a schematic perspective view of the cold heading device according to an embodiment of the present invention;

fig. 5 is a schematic perspective view of the cold heading device according to an embodiment of the present invention.

Wherein: the feeding element 100, the feeding column body 110, the first feeding end 120, the first limit groove 121, the second feeding end 130, the second limit groove 131, the positioning plane 132, the recessed welding part 140, the first inner conductor 151, the second inner conductor 152, the cold heading device 200, the cold heading base 210, the cold heading clamping base 220, the first strip clamping hole 221, the cold heading telescopic driving device 231, the cold heading die head 232, the telescopic driving body 241, the ejector pin 242, the die clamping device 300, the die clamping base 310, the left sliding base 321, the right sliding base 322, the strip clamping groove 323, the fixed base 324, the horizontal sliding surface 325, the die clamping telescopic driving device 331, the die clamping die head 332, the bottom sliding rail 341, the lateral telescopic driving device 342, the pre-positioning groove 350, the top sliding rail 361, the spring plate clamp 362 and the vertical telescopic driving device 363.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

As shown in fig. 1 to 3, a feeding element 100 includes: the feed column comprises a feed column body 110 and terminals which are respectively connected to two ends of the feed column body 110 and extend outwards along the axial direction of the feed column body; the terminal includes: a first feeding end 120 and a second feeding end 130; the outer end face of the first feeding end 120 is provided with at least two first limiting grooves 121, and the first limiting grooves 121 intersect; the outer end surface of the second feeding end 130 is provided with a second limiting groove 131.

The feeding element 100 is produced by the production equipment, the first limiting groove 121 and the second limiting groove 131 are respectively added on the outer end faces of the first feeding end 120 and the second feeding end 130, and the positions and angles of the first limiting groove 121 and the second limiting groove 131 relative to each other and the feeding column body 110 are accurately set according to the subsequent installation requirements; the first limiting groove 121 can accurately limit the first inner conductors 151 of the plurality of feeding components arranged on the corresponding outer end faces, and is convenient for subsequent welding and fixing; the second limiting groove 131 can accurately limit the second inner conductor 152 of the external cable placed on the corresponding outer end face, and meanwhile, the subsequent welding and fixing can be facilitated; the feed column is improved and optimized on the basis of the existing structure, so that the feed column is more convenient and firmer in subsequent practical application, and the product competitiveness and the application range of the feed column are greatly improved.

Preferably, the plurality of first limiting grooves 121 are arranged along a radial direction of an outer end surface of the first feeding end 120; and a plurality of the first limiting grooves 121 intersect at the middle of the outer end surface of the first feeding end 120. The first limiting grooves 121 intersect at the middle of the outer end surface of the first feeding end 120 at the same time, so that the intersecting position of the first inner conductors 151 placed in the first limiting grooves 121 is ensured, and the positions welded to the first feeding end 120 together after being welded to each other are the middle positions of the corresponding end surfaces of the feeding element 100, so that even if a pulling force occurs between a plurality of first inner conductors 151 or between a plurality of first inner conductors 151 and the feeding element 100 in subsequent applications, the interaction between a plurality of first inner conductors 151 can counteract a certain degree of external force, and the stability of the overall structure can be ensured to a greater extent.

Preferably, the outer end surface of the first feeding end 120 and/or the outer end surface of the second feeding end 130 are provided with a recessed welding portion 140 at the middle portion. The concave welding part 140 is additionally arranged on the outer end face of the first feeding end 120, so that the plurality of first limiting grooves 121 are intersected at the concave welding part 140, welding materials can be added at the position for reinforcing and welding in the welding process, and the stability of a connection structure is improved; the concave welding part 140 is arranged in the middle of the second feeding end 130, and welding materials can be added for reinforcement welding in the welding process; the welding structure of the first inner conductor 151 and the second inner conductor 152 with the feeding element 100 is further improved, the subsequent application effect of the feeding column is improved, and the subsequent welding and assembling operation is also facilitated.

Preferably, the first limiting grooves 121 all penetrate from one side of the outer end surface of the first feeding end 120 to the other side; the second limiting grooves 131 penetrate from one side to the other side of the outer end surface of the second feeding end 130. The first limiting groove 121 and the second limiting groove 131 are both arranged in a through groove-shaped structure, so that the installation flexibility of the power feeding element 100 can be improved; for example, when the first inner conductor 151 or the second inner conductor 152 is too long or extends from different directions, the through slot-like structure can be well adapted to such a situation, and the first inner conductor 151 or the second inner conductor 152 can be precisely positioned and stably welded.

As shown in fig. 4 and 5, a production apparatus of a feeding element 100 for producing the feeding element 100 as described above; the production equipment comprises: a cold heading device 200 and a mold closing device 300; the cold heading device 200 includes: the cold heading base 210, the cold heading clamping seat 220 and the cold heading driving assembly; the cold heading clamping seat 220 is provided with a first strip-shaped clamping hole 221; the cold heading drive assembly includes: the cold heading telescopic driving device 231 and the cold heading die head 232 are arranged on the end face of the telescopic driving end of the cold heading telescopic driving device 231; the cold heading clamping seat 220 and the cold heading driving assembly are fixedly arranged above the cold heading base 210, the telescopic driving end of the cold heading telescopic driving device 231 and the strip-shaped clamping hole are coaxially arranged, and the cold heading die head 232 and the end face of the first strip-shaped clamping hole 221 are arranged oppositely; the mold clamping device 300 includes: the mold closing device comprises a mold closing base 310, a mold closing clamping component and a mold closing driving component; the compound die clamping subassembly includes: a die assembly clamping seat and a die assembly driving mechanism; the die assembling and clamping seat comprises a left sliding seat 321 and a right sliding seat 322 which are arranged oppositely, two opposite inner side surfaces of the seat sliding seat and the right sliding seat 322 are provided with strip-shaped clamping grooves 323, and the two strip-shaped clamping grooves 323 are arranged oppositely; the die assembly driving mechanism drives the left sliding seat and the right sliding seat to approach or depart from each other along a straight line, and when the left sliding seat and the right sliding seat approach and cling to each other, the two strip-shaped clamping grooves 323 are spliced into a second strip-shaped clamping hole; the matched mold drive assembly includes: a mold closing telescopic driving device 331 and a mold closing die head 332 provided on the end face of the telescopic driving end of the mold closing telescopic driving device 331; the die assembly clamping component and the die assembly driving component are fixedly arranged above the die assembly base 310, the telescopic driving end of the die assembly telescopic driving device 331 and the second strip-shaped clamping hole are arranged coaxially, and the die assembly die head 332 is arranged opposite to the end face of the second strip-shaped clamping hole.

The cold heading device 200 arranged on the production equipment can obtain the second feed end 130 at one end of a rod-shaped raw material more accurately and rapidly through a cold heading process; the die assembly device 300 solves the problem that the irregular semi-finished product is not clamped and processed conveniently, and one end of the semi-finished product can be rapidly and accurately processed through a die assembly process to obtain the first feed end 120; the finally processed feed element 100 is more reasonable in structure, and the welding application structure is more accurate, stable and convenient; the production efficiency is high, the cost is low, and the product quality is obviously improved.

Preferably, the first strip-shaped clamping hole 221 is a through hole structure penetrating through two ends of the clamping seat; one end of the first strip clamping hole 221 is provided with the cold heading telescopic driving device 231, and the other end of the first strip clamping hole is provided with a thimble device; the thimble device comprises a telescopic driving body 241 and a thimble element 242 axially connected to the telescopic driving body 241 and capable of telescopic movement relative to the telescopic body; the extended end of the thimble member 242 is axially slidable within the first bar-shaped chucking hole 221. On the one hand, the ejector pin device can prop one end of the raw material in the axial direction to ensure that the other end of the raw material smoothly completes cold heading processing, on the other hand, the ejector pin device can quickly eject the semi-finished product in the first strip-shaped clamping hole 221 to realize quick discharging, and compared with other discharging modes, the ejector pin device is simpler to operate and can improve the processing efficiency.

Preferably, the clamping fixture further comprises a fixed base 324; a horizontal sliding surface 325 is arranged at the top of the fixed base 324; the left sliding seat 321 and the right sliding seat 322 are respectively located at two sides of the fixed base 324, and the bottom surface of one end of the left sliding seat 321 and the right sliding seat 322 extending in opposite directions clings to the horizontal sliding surface 325 of the fixed base 324 to slide; the strip-shaped clamping grooves 323 are respectively arranged at the lower edge of the inner side surface of the right sliding seat 322 of the left sliding seat 321. Add the fixing base can make on the one hand left side sliding seat 321 and right sliding seat 322 sliding construction is more stable, is difficult for taking place skew or the dead phenomenon of slip card under the external force promotes, on the other hand on left side sliding seat 321 and the right sliding seat 322 two bar clamping groove 323 all can be hugged closely horizontal slip face 325 slides to the semi-manufactured goods that will place on horizontal slip face 325 that is rapid accurate is pressed from both sides tightly to the clamp, thereby has guaranteed the clamping precision.

Preferably, the mold closing driving mechanism comprises two lateral telescopic driving devices 342 and a bottom sliding rail 341 which are arranged oppositely; the slide rail is laid on the top surface of the mold clamping base 310; the left sliding seat 321 and the right sliding seat 322 are slidably disposed above the sliding rail, and the two lateral driving devices are respectively in transmission connection with the left sliding seat 321 and the right sliding seat 322; and the two lateral driving devices are synchronously driven in opposite directions. The bottom sliding rail 341 makes the sliding motion of the left sliding seat and the right sliding seat smoother and more stable; by adopting the two driving devices and synchronous driving, on the basis of ensuring that the second strip-shaped clamping hole has enough external force to firmly clamp the semi-finished product, the synchronous driving design can also reduce the displacement of the semi-finished product pushed on the fixed base 324 in the clamping process as much as possible, and the smaller the displacement of the semi-finished product pushed, the higher the clamping precision; thereby further guaranteeing the clamping and processing precision in the die assembly process.

Preferably, a pre-positioning groove 350 is arranged above the die assembly base 310; the prepositioning part is provided with a top slide rail 361; the top sliding rail 361 is slidably provided with a clamping component, and the clamping component can slide to the position right above the pre-positioning groove 350 and the position right above the fixing base 324 along the top sliding rail 361; the material clamping assembly comprises: a clip 362 and a vertical telescopic drive 363; the elastic sheet clamp 362 comprises two elastic sheets which are arranged oppositely, the upper ends of the two elastic sheets are connected in a clinging manner, and the lower ends of the elastic sheets are of splayed expansion structures; the upper end of the vertical telescopic driving device 363 is slidably connected to the top sliding rail 361, and the lower sheet of the vertical telescopic driving device 363 is connected with the upper end of the elastic sheet clamp 362; one end of the top sliding rail 361 is provided with a translation telescopic driving device, and the material clamping assembly is in transmission connection with a telescopic driving end of the translation telescopic driving device. The semi-finished product obtained by processing in the cold heading device 200 is firstly placed in the pre-positioning groove 350 to quickly complete pre-positioning, and then the clamping assembly clamps and places the material on the fixing seat, and finally the material is clamped in the second strip-shaped clamping hole, and then the subsequent processing is continuously completed, so that the positioning clamping connection of the two processing procedures is more accurate and smooth; in addition, the clamping assembly is ingenious and simple in structure, the occupied space is smaller, the clamping assembly is more suitable for application of the mold closing device 300, the extrusion degree of the spring piece clamp 362 and the corresponding surface can be changed by controlling the telescopic displacement of the vertical telescopic driving device 363, so that the width between the two spring pieces is changed, a rod-shaped semi-finished product can be clamped or put down, and a protruding structure or a rough surface can be arranged on the inner side surface of each spring piece in order to increase the friction force between the inner side of each spring piece and the surface of the semi-finished product.

Preferably, the cold heading telescopic driving device 231 and the die assembly telescopic driving device 331 are telescopic air cylinders or hydraulic cylinders, and the telescopic driving ends can rotate around the axes of the telescopic driving ends. Specifically, the ejector pin device, the lateral telescopic driving device 342, and the vertical telescopic driving device 363 may also be telescopic cylinders or hydraulic cylinders. The cold heading telescopic driving device 231 and the die assembly telescopic driving device 331 require that the telescopic driving ends can rotate around the axes of the telescopic driving ends, so that the cold heading die head 232 and the die assembly die head 332 arranged on the corresponding telescopic driving ends can rotate; because the feeding elements 100 have various specifications and types, the shapes of the first feeding end 120 and the second feeding end 130 may not be changed under different requirements, but the structural angles between the two feeding ends may be different, so that when the cold heading die head 232 or the matched die head 332 can rotate, the single angle in the machining process can be adjusted more quickly and conveniently, so as to improve the machining precision. In addition, the cold heading die head 232 and the matched die head 332 can be detached and replaced, so that the processing requirements of different structures of the power feeding element 100 can be further met.

The manufacturing process of the feeding element 100 includes the following steps:

(1) cold heading process

a. The cold heading telescopic driving device 231 restores to the initial position, so that the telescopic driving end is contracted and far away from the cold heading base 210, the cold heading die head 232 is installed on the end face of the telescopic driving end of the cold heading telescopic driving device 231, and the cold heading die head 232 is opposite to the end face of the first strip-shaped clamping hole 221;

b. inserting and fixing one end of the raw material into the first bar-shaped clamping hole 221, and enabling the raw material to extend out of an opening close to one end of the cold heading telescopic driving device 231 by a set length;

c. the cold heading telescopic driving device 231 is started, so that the telescopic driving end of the cold heading telescopic driving device drives the cold heading die head 232 to perform cold heading operation on one end of the raw material to form a first feeding end 120;

(2) mold closing process

e. The mold clamping telescopic driving device 331 returns to the initial position, so that the telescopic driving end is contracted and away from the mold clamping base 310, and the left sliding seat 321 and the right sliding seat 322 are away from each other; the mold closing die head 332 is mounted to the end face of the telescopic driving end of the mold closing telescopic driving device 331;

f. sliding the left sliding seat 321 and the right sliding seat 322 in opposite directions until the sliding seats are tightly attached, and simultaneously clamping the semi-finished product into the first strip-shaped clamping hole 221 formed by splicing the two strip-shaped clamping grooves 323, so that the other end of the semi-finished product, which is opposite to the first feeding end 120, extends out of an opening at one end close to the mold closing telescopic driving device 331 by a set length;

g. the die assembly telescopic driving device 331 is started, so that the telescopic driving end of the die assembly telescopic driving device drives the die assembly die head 332 to perform cold heading operation on one end of the finished product to form a second feeding end 130;

h. the feeding element 100 is obtained after the semi-finished product is subjected to mold assembly operation.

In the present embodiment, a manufacturing process of the feeding element 100 is provided, which adopts a process combining a cold heading process and a die assembly process instead of lathe processing, and the manufacturing process can use not only alloy processing, but also pure metal processing with poor strength, such as copper, etc., for example, when copper is processed, the rod-shaped raw material only receives the processing equipment action at the end, and the other parts are clamped by the first strip-shaped clamping hole 221 or the second strip-shaped clamping hole, so that the technology axially receives the external force action and does not deform, thereby ensuring the processing precision of the product; in addition, the shapes of the cold heading die head 232 and the die closing die head 332 can be designed or replaced according to product design or application requirements, more products can be produced by utilizing the manufacturing process, and the product precision, the product quality and the production efficiency are greatly improved.

Preferably, in the step b, one end of the raw material is inserted into and fixed and limited in the first strip-shaped clamping hole 221, and the operation of extending the raw material by a set length is as follows: inserting the thimble member 242 into the first bar-shaped clamping hole 221 to block one end of the first bar-shaped clamping hole 221, and then inserting the raw material into the first clamping hole from the other end of the first clamping hole until the raw material contacts the thimble member 242; then, the thimble member 242 is extended toward the cold heading expansion and contraction driving device 231 against the raw material until the extended distance is reached to the set distance. The set distance of the ejector pin for ejecting the raw material to extend in the step is substantially equal to the set length in the step f, the length of the raw material which is clamped and extended is controlled by using the mechanical precision, and the measurement is more accurate and faster than the thought measurement.

Preferably, the operation of taking out the semi-finished product from the first strip-shaped hole in the step d is as follows: and the telescopic driving end of the cold-heading telescopic driving device 231 is contracted, the thimble device extends the thimble piece 242 to the direction of the cold-heading telescopic driving device 231 along the axis direction of the first strip-shaped hole according to a control instruction, and a semi-finished product is ejected out of the first strip-shaped hole. The semi-finished product is more quickly and conveniently unloaded, and the cold heading forming structure cannot be damaged by the ejection unloading mode.

Preferably, the cold heading process further comprises a preparation stage before the cold heading process: a raw material of a rod-shaped conductive metal material is prepared according to the product requirement, and a cold heading die head 232 and a die closing die head 332 which correspond to the shape and structure required by the product are prepared.

Preferably, at least one side in the die cavity of the cold heading die head 232 is of a planar structure, and at least one side of the first feed broken end obtained by processing the cold heading die head 232 is provided with a positioning plane 132; in the step, after the die closing die head 332 is mounted on the end face of the telescopic driving end of the die closing telescopic driving device 331, the telescopic driving end of the die closing telescopic driving device 331 is rotated to rotate the die closing die head 332 to a corresponding position according to the requirement of an included angle between the first feeding end 120 and the second feeding end in product design by taking the position where the positioning plane 132 is horizontally clamped downwards as a reference.

The pre-positioning step skillfully utilizes the positioning surface, so that an accurate reference is provided for initial clamping and positioning of the cold heading process.

e1. placing the semi-finished product in the pre-positioning groove 350, and ensuring that the positioning surface is attached to the bottom surface of the pre-positioning groove 350;

e2. the material clamping assembly is driven by the vertical telescopic driving device 363 and the translational telescopic driving device to take the semi-finished product out of the pre-positioning groove 350 and place the semi-finished product on the horizontal sliding surface 325 of the fixed base 324 in a translational manner;

e3. the left sliding seat 321 and the right sliding seat 322 slide along the horizontal sliding surface 325 until being tightly attached under the driving of the lateral telescopic driving device 342, and clamp the semi-finished product into a second strip-shaped clamping groove 323 formed by splicing the two strip-shaped clamping grooves 323.

The pre-positioning step skillfully utilizes the positioning surface, so that an accurate reference is provided for clamping and positioning of a die assembly process, and the positioning surface is of a planar structure and can further ensure that a semi-finished product is clamped in the second strip-shaped clamping hole more stably; after the pre-positioning step is added, the processing efficiency and the processing precision of the manufacturing process can be greatly improved.

Preferably, the raw material is copper. In the prior art, since lathe machining is adopted, in order to avoid deformation in the machining process, certain requirements are required on the strength of raw materials, so that the feed element 100 in the prior art is mostly made of alloys such as copper alloy, aluminum alloy and the like; although the alloy material can well meet the requirement of lathe processing, the electrical conductivity of the alloy material is poor due to low purity, so that the effect of the power feeding element 100 made of the alloy material in practical application is not ideal; therefore, in order to solve the contradiction between the machining process and the practical application, the process adopted in the embodiment is not lathe machining, but is a process scheme combining a cold heading process and a die assembly process, the manufacturing process can be used for machining by using alloy, copper and other pure metals with poor strength, for example, when copper is machined, rod-shaped raw materials only receive the action of machining equipment at the end part, and the other parts are clamped by the first strip-shaped clamping hole 221 or the second strip-shaped clamping hole, so that the technology does not deform under the action of external force in the axial direction, the machining precision of a product is ensured, the subsequent application effect of the product is also improved, and the preferable copper can be specifically pure copper.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.

Claims

1. A process for manufacturing a feeding element, for producing a feeding element, the feeding element comprising: the feed column comprises a feed column body and wiring ends which are respectively connected to two ends of the feed column body and extend outwards along the axial direction of the feed column body; the terminal includes: a first feed end and a second feed end; the outer end face of the first feed end is provided with at least two first limiting grooves, and the first limiting grooves are intersected; a second limiting groove is formed in the outer end face of the second feed end;

the manufacturing process comprises the following steps:

(1) cold heading process

d. the raw material is subjected to cold heading operation to obtain a semi-finished product, and the semi-finished product is taken out from the first strip-shaped clamping hole;

(2) mold closing process

f. the left sliding seat and the right sliding seat slide oppositely until the left sliding seat and the right sliding seat are tightly attached, meanwhile, a semi-finished product is clamped into a second strip-shaped clamping hole formed by splicing two strip-shaped clamping grooves, and the other end, opposite to the first feed end, of the semi-finished product extends out of an opening at one end close to the die assembly telescopic driving device by a set length;

h. after the semi-finished product is subjected to die assembly operation, a feed element can be obtained;

at least one side in a die cavity of the cold heading die head is of a planar structure, and at least one side of the first feed end obtained by processing the cold heading die head is provided with a positioning plane; after the die assembly die head is installed on the end face of the telescopic driving end of the die assembly telescopic driving device, the telescopic driving end of the die assembly telescopic driving device is rotated to rotate the die assembly die head to a corresponding position according to the requirement of an included angle between a first feed end and a second feed end in product design by taking the position of the positioning plane for horizontal downward clamping as a reference;

a pre-positioning step is further arranged after the step e and before the step f:

e1. placing the semi-finished product in a pre-positioning groove, and ensuring that the positioning plane is attached to the bottom surface of the pre-positioning groove;

e3. and the left sliding seat and the right sliding seat slide in opposite directions along the horizontal sliding surface until the left sliding seat and the right sliding seat are tightly attached under the driving of the lateral telescopic driving device, and the semi-finished product is clamped into a second strip-shaped clamping hole formed by splicing the two strip-shaped clamping grooves.

2. The manufacturing process of a feeding element according to claim 1, wherein in the step b, one end of the raw material is inserted into and fixedly limited in the first bar-shaped clamping hole, and the operation of extending the raw material by a set length is as follows: inserting a thimble element into a first strip-shaped clamping hole to block one end of the first strip-shaped clamping hole, and then inserting a raw material into the first strip-shaped clamping hole from the other end of the first strip-shaped clamping hole until the raw material is contacted with the thimble element; and then the thimble piece props against the raw material to extend towards the direction of the cold heading telescopic driving device until the extension distance reaches a set distance.

3. A process for manufacturing a feeding element according to claim 2, wherein the step d comprises the following operation of taking the semi-finished product out of the first bar-shaped clamping hole: and the telescopic driving end of the cold-heading telescopic driving device is contracted, the thimble device extends the thimble piece to the direction of the cold-heading telescopic driving device along the axis direction of the first strip-shaped hole according to a control instruction, and a semi-finished product is ejected out of the first strip-shaped hole.

4. The manufacturing process of a feeding element as claimed in claim 2, further comprising a preparation stage before the cold heading process: preparing a raw material of a rod-shaped conductive metal material according to the product requirement, and a cold heading die head and a die closing die head corresponding to the shape and structure required by the product.

5. The manufacturing process of the feeding element as claimed in claim 4, wherein the material is copper.