Continuous extrusion machine for producing tellurium-copper alloy contact of new energy automobile high-voltage relay

Abstract

This invention proposes a continuous extrusion press for producing tellurium copper alloy contacts for high-voltage relays in new energy vehicles. The press includes a continuous extrusion press body, a main shaft core fixed in the middle of the press body, and an extrusion die rotatably connected to the outside of the main shaft core. A cutting device is installed on a cutting support top frame directly above the continuous extrusion press body. A secondary extrusion die is located on one side of the extrusion die. After the wire enters the wire insertion hole at the top of the extrusion die, the cutting device cuts the wire to the required length, and the cut wire is inserted into the insertion hole. Under the operation of a shifting motor, the insertion hole containing the wire is rotated to the position of the secondary extrusion die, where the wire is extruded and formed. After forming, the rivet contact is ejected when it rotates to the bottom position of the extrusion die. The feeding, extrusion, and ejection processes can all be performed simultaneously, greatly improving production efficiency.

Description

Technical Field

[0001] This invention relates to the field of alloy contact production equipment technology, and in particular to a continuous extrusion press for producing tellurium copper alloy contacts for high-voltage relays in new energy vehicles. Background Technology

[0002] High-voltage DC relays are required between the battery system and motor controller of new energy vehicles. They serve as an isolation device when the system stops operating and a connection device when the system is operating. When the vehicle is turned off or a fault occurs, they can safely disconnect the energy storage system from the vehicle's electrical system, thus breaking the circuit. Therefore, high-voltage DC relays are key safety devices for new energy vehicles, and the contact material of high-voltage DC relays is even more critical.

[0003] The tellurium copper alloy contacts used in high-voltage relays for new energy vehicles are often riveted-type electrical contacts, which are manufactured by wire forging. For example, application number 202223261313.1 discloses a riveted silver contact processing mold. In this device, one side of the fixed block is closely attached to the support base, and the inside of the material groove is fitted with a top block. By placing the raw material into the material groove, the hydraulic press is started to drive the left pressure mold to squeeze the right mold. The raw material inside the material groove is blocked by the top block and pushed into the mold groove. The raw material is squeezed and deformed into a riveted silver contact by the top block. The design of four mold grooves can significantly improve processing efficiency. However, in actual production, this device needs to go through several processes such as feeding, extrusion molding, and unloading in sequence. It cannot achieve simultaneous feeding, extrusion molding, and unloading, so the production efficiency needs to be improved. In addition, when traditional wire forming dies extrude wire, for example, with... Figure 12 As shown, the die directly presses the wire. If the wire is not accurately aligned, the extruded wire is prone to forming shapes like the one shown. Figure 12 The rough edges shown at point a in the middle lead to a decrease in the product qualification rate. Summary of the Invention

[0004] To address the aforementioned problems, this invention proposes a continuous extrusion press for producing tellurium copper alloy contacts for high-voltage relays in new energy vehicles, thereby more precisely resolving the problems described above.

[0005] This invention is achieved through the following technical solution: This invention proposes a continuous extrusion press for producing tellurium copper alloy contacts for high-voltage relays in new energy vehicles. The press includes a continuous extrusion press body, a main shaft core fixed in the middle of the press body, and an extrusion die rotatably connected to the outside of the main shaft core. The outer surface of the extrusion die has four processing surfaces arranged in a circular array, with a row of equally spaced wire insertion holes on each processing surface. A cutting support top frame is located directly above the extrusion die on the continuous extrusion press body, and a cutting device is mounted on the cutting support top frame. A secondary extrusion top die is located on one side of the continuous extrusion press body, and a guide plate is located at the bottom of the continuous extrusion press body, below the extrusion die. The cutting device includes a pair of cutting shear frames located directly above the extrusion die. The pair of cutting shear frames are provided with cutting tools on one side close to each other. A pair of horizontal and outwardly extending guide rods are provided on the outer side of each of the two cutting shear frames. A guide rod support arm for sliding support with the guide rods is integrally formed on the cutting support top frame. The secondary extrusion die includes a first die and a second die. The first die has a row of pressing nozzles on the side near the extrusion bottom die. The pressing nozzles on the first die correspond one-to-one with the wire insertion holes on the extrusion bottom die. The ends of the wire insertion holes are provided with pressing grooves. The diameter of the pressing nozzles matches the diameter of the pressing grooves. The second die has a row of secondary top pressing rods fixed on the side near the first die. The row of secondary top pressing rods corresponds one-to-one with the pressing nozzles on the first die. The secondary top pressing rods slide through the first die and extend to the pressing nozzles.

[0006] Furthermore, a gear ring is provided on the outer ring of one end of the extrusion die, and a shifting motor is provided on the outer wall of the continuous extrusion machine body on the same side as the gear ring. The output shaft end of the shifting motor is provided with a shifting drive gear, and the shifting drive gear is engaged with the gear ring provided on the extrusion die.

[0007] Furthermore, both ends of the two cutting shear frames are integrally formed with cutting drive racks. The cutting drive racks on the same side of the two cutting shear frames are arranged in parallel and staggered positions, and the cutting drive racks on the same side of the two cutting shear frames are equipped with cutting drive gears for meshing transmission. A cutting motor is provided on the top of the cutting support top frame, and the output shaft end of the cutting motor is connected to one of the cutting drive gears for transmission. Furthermore, the bottom of the cutting frame and the position corresponding to each wire insertion hole are integrally formed with a wire straightening part, which is a semi-circular ring structure.

[0008] Furthermore, the inner wall of the continuous extrusion machine body is provided with horizontally oriented guide rails on both sides of the first mold, and extrusion guide slides are provided on both sides of the first mold, and the extrusion guide slides on both sides of the first mold are slidably connected to the guide rails on both sides respectively.

[0009] Furthermore, a first electro-hydraulic telescopic component is provided on the side wall of the continuous extrusion machine body away from the extrusion bottom die. The telescopic rod of the first electro-hydraulic telescopic component is connected to the extrusion guide slide, and the telescopic guidance of the first electro-hydraulic telescopic component is consistent with the guidance of the guide rail.

[0010] Furthermore, a second electro-hydraulic telescopic component is fixed to the bottom of the second mold, and the telescopic rod end of the second electro-hydraulic telescopic component is connected to the bottom of the first mold.

[0011] Furthermore, a first pneumatic sliding cavity is provided inside the main shaft core and on the side near the secondary extrusion die. A first airtight sliding strip is slidably connected inside the first pneumatic sliding cavity. The first airtight sliding strip is provided with a support pin that corresponds one-to-one with the wire insertion hole provided on the extrusion die, and the diameter of the support pin matches the diameter of the wire insertion hole.

[0012] Furthermore, a main air supply channel is provided at the axial position of the main shaft core, which is connected to the air chamber of the first air pressure sliding chamber, and the main air supply channel is connected to an air inlet pipe extending to the outside of the continuous extrusion machine body.

[0013] Furthermore, a second pneumatic sliding cavity is provided inside the main shaft core and at the bottom position. A second airtight sliding strip is slidably connected in the second pneumatic sliding cavity. The bottom of the second airtight sliding strip is provided with a stripping pin that corresponds one-to-one with the wire insertion hole provided in the extrusion die. The air chamber of the second pneumatic sliding cavity is connected to the main air supply channel.

[0014] The beneficial effects of this invention are: 1. In this invention, after the wire enters the wire insertion hole at the top of the extrusion die, the wire is cut to the required length by a cutting device, and the cut wire is inserted into the wire insertion hole. Under the operation of the shifting motor, the wire insertion hole containing the wire is rotated to the position of the secondary extrusion die, and the secondary extrusion die extrudes and forms the wire. After forming, the rivet contact parts are ejected and discharged when the extrusion die is rotated to the bottom position. The three processes of feeding, extrusion and ejection can be carried out simultaneously, which greatly improves production efficiency. 2. When the cutting tool cuts the wire, the two cutting tool frames close so that the wire straightening part on the cutting tool frame can clamp the wire. This can ensure the stability of the wire cutting process and prevent the wire from being pulled out of the wire insertion hole. At the same time, the wire is shaped to prevent the wire from bending and affecting the quality of the pressure forming. 3. The present invention sets up a two-stage extrusion process. In the first pressing stage, a seamless contact rivet head cavity is formed between the pressing nozzle and the pressing groove. Then, in the second forming stage, the wire is formed in the cavity formed between the pressing nozzle and the pressing groove, so that the formed contact workpiece is free of burrs, which greatly improves the yield. 4. In this invention, under the air supply of the air pump equipment, the second air pressure sliding cavity is filled with air. At this time, the second airtight sliding strip slides to insert the stripping pin into the corresponding wire insertion hole, pushing out the formed rivet contact piece in the wire insertion hole, thereby making stripping quick and effective. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a partial cross-sectional view of the first three-dimensional structure of the present invention; Figure 3 This is a partial top sectional view of the structure of the present invention; Figure 4 This is a partial cross-sectional view of the second three-dimensional structure of the present invention; Figure 5 This is a partial cross-sectional view of the third three-dimensional structure of the present invention; Figure 6 This is a front sectional view of the present invention; Figure 7 for Figure 6 Sectional view at point AA; Figure 8 This is a front sectional view of the first pressing stage of the present invention; Figure 9 for Figure 8 Enlarged view of point B in the middle; Figure 10 This is a schematic diagram of the structure of the second molding stage of the present invention; Figure 11 This is a cross-sectional view of the spindle core in this invention; Figure 12 This is a structural diagram of the traditional contact extrusion molding process.

[0016] In the diagram: 1. Continuous extrusion machine body; 101. Main shaft core; 1011. Main air supply channel; 1012. First air pressure slide chamber; 1013. First airtight slide bar; 1014. Support pin; 1015. Second air pressure slide chamber; 1016. Second airtight slide bar; 1017. Stripping pin; 1018. Air inlet pipe; 102. Extrusion bottom die; 1021. Wire insertion hole; 1022. Pressing groove; 1023. Gear ring; 103. Cutting support top frame; 1031. Guide rod support arm; 104. Guide bottom plate; 2. Transposition electric... Machine; 201, Shifting drive gear; 3, Cutting device; 301, Cutting shear frame; 3011, Guide rod; 3012, Cutting transmission rack; 3013, Wire straightening part; 302, Cutting shears; 4, Secondary extrusion die; 401, First die; 4011, Pressing nozzle; 4012, Extrusion guide slide; 402, Second die; 4021, Secondary top pressure rod; 403, First electro-hydraulic telescopic component; 404, Second electro-hydraulic telescopic component; 405, Guide rail; 5, Cutting motor; 501, Cutting transmission gear. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Example 1 A continuous extrusion press for producing tellurium copper alloy contacts for high-voltage relays in new energy vehicles includes a continuous extrusion press body 1. A main shaft core 101 is fixed in the middle of the continuous extrusion press body 1. An extrusion die 102 is rotatably connected to the outside of the main shaft core 101. The outer surface of the extrusion die 102 has four processing surfaces arranged in a ring array. A row of equally spaced wire insertion holes 1021 are opened on the processing surfaces. A cutting support top frame 103 is provided on the continuous extrusion press body 1 directly above the extrusion die 102. A cutting device 3 is provided on the cutting support top frame 103. An opening for wire trough entry is opened in the middle of the cutting support top frame 103. After the wire trough enters the wire insertion hole 1021 on the top of the extrusion die 102 through the conveying equipment, the cutting device 3 cuts the wire to the required length, and the cut wire is inserted into the wire insertion hole 1021.

[0019] A continuous extrusion press body 1 is provided with a secondary extrusion top die 4 on one side of the extrusion bottom die 102. A gear ring 1023 is provided on the outer ring of one end of the extrusion bottom die 102. A shifting motor 2 is provided on the outer wall of the continuous extrusion press body 1 on the same side as the gear ring 1023. A shifting drive gear 201 is provided at the output shaft end of the shifting motor 2, and the shifting drive gear 201 meshes with the gear ring 1023 on the extrusion bottom die 102. A guide plate 104 is provided at the bottom of the continuous extrusion press body 1 and below the extrusion bottom die 102. Under the operation of the shifting motor 2, the shifting drive gear 201 is driven to mesh with the gear ring 1023 on one end of the extrusion bottom die 102, so that the wire insertion hole 1021 containing the wire rotates to the position of the secondary extrusion top die 4, and the secondary extrusion top die 4 extrudes and shapes the wire.

[0020] The technical solutions in the above embodiments of this application have at least the following technical effects or advantages: After the wire enters the wire insertion hole 1021 provided at the top of the extrusion die 102, the wire is cut to the required length by the cutting device 3, and the cut wire is inserted into the wire insertion hole 1021. Under the operation of the shifting motor 2, the wire insertion hole 1021 containing the wire is rotated to the position of the secondary extrusion die 4, and the secondary extrusion die 4 extrudes and forms the wire. After forming, the rivet contact parts are ejected and discharged when rotated to the bottom position of the extrusion die 102. The three processes of feeding, extrusion and ejection can be carried out simultaneously, which greatly improves the production efficiency.

[0021] Example 2 Combination Figure 1 , Figure 2 and Figure 6 As shown, the cutting device 3 includes a pair of cutting shear frames 301 located directly above the extrusion die 102. Cutting shear tools 302 are provided on the side of the pair of cutting shear frames 301 that are close to each other. A pair of horizontally extending guide rods 3011 are provided on the outer sides of each of the two cutting shear frames 301. A guide rod support arm 1031 is integrally formed on the cutting support top frame 103 for sliding support with the guide rods 3011, and for guiding the opening and closing of the two cutting shear frames 301. Cutting transmission racks 3012 are integrally formed at both ends of each of the two cutting shear frames 301. The two cutting shear frames 301 are... The cutting transmission racks 3012 on the side are arranged in parallel and staggered positions, and the cutting transmission racks 3012 on the same side of the two cutting scissor frames 301 are equipped with cutting transmission gears 501 for meshing and transmission. The top of the cutting support top frame 103 is equipped with a cutting motor 5, and the output shaft end of the cutting motor 5 is connected to one of the cutting transmission gears 501 for transmission. Under the operation of the cutting motor 5, the cutting transmission gear 501 is controlled to rotate forward and backward. The cutting transmission gear 501 pulls the cutting transmission racks 3012 of the two cutting scissor frames 301, thereby controlling the cutting opening and closing of the cutting tool 302.

[0022] It is worth mentioning that a wire straightening part 3013 is integrally formed at the bottom of the cutting scissors 301 and at the position corresponding to each wire insertion hole 1021. The wire straightening part 3013 is a semi-circular ring structure that matches the wire diameter. When the two cutting scissors 301 are closed, the wire straightening part 3013 provided on the two cutting scissors 301 can clamp and fix the wire.

[0023] The technical solutions in the above embodiments of this application have at least the following technical effects or advantages: When the cutting tool 302 cuts the wire, the two cutting tool frames 301 close so that the wire straightening part 3013 provided on the cutting tool frame 301 can clamp the wire, which can ensure the stability of the wire cutting process and prevent the wire from being pulled outward from the wire insertion hole 1021. At the same time, the wire is shaped to prevent the wire from bending and affecting the quality of pressure forming.

[0024] Example 3 Combination Figure 4 Figure 5 and Figure 6 As shown, the secondary extrusion die 4 includes a first die 401 and a second die 402. The first die 401 has a row of pressing nozzles 4011 on one side near the extrusion die 102. The pressing nozzles 4011 on the first die 401 correspond one-to-one with the wire insertion holes 1021 on the extrusion die 102. A pressing groove 1022 is provided at the end of the wire insertion hole 1021. The diameter of the pressing nozzles 4011 matches the diameter of the pressing groove 1022. The inner wall of the continuous extrusion machine body 1 and located on both sides of the first die 401... A horizontally oriented guide rail 405 is provided. Extrusion guide slides 4012 are provided on both sides of the first mold 401, and the extrusion guide slides 4012 on both sides of the first mold 401 are slidably connected to the guide rails 405 on both sides. A first electro-hydraulic telescopic component 403 is provided on the side wall of the continuous extrusion machine body 1 away from the extrusion bottom mold 102. The telescopic rod of the first electro-hydraulic telescopic component 403 is connected to the extrusion guide slides 4012, and the telescopic guidance of the first electro-hydraulic telescopic component 403 is consistent with the guidance of the guide rail 405. When extruding the wire, the first mold 401 is pulled by controlling the first electro-hydraulic telescopic component 403. Under the guidance of the guide rail 405, the pressing nozzle 4011 of the first mold 401 is inserted into the pressing groove 1022 at the end of the wire insertion hole 1021. Figure 9 As shown, this stage is the first pressing state stage, where a cavity for the contact rivet head is formed between the pressing nozzle 4011 and the pressing groove 1022, and the cavity has no gaps.

[0025] A row of secondary pressure rods 4021 is fixed on the side of the second mold 402 near the first mold 401. Each row of secondary pressure rods 4021 corresponds one-to-one with a pressing nozzle 4011 on the first mold 401. The secondary pressure rods 4021 slide and insert into the first mold 401, extending to the pressing nozzle 4011. A second electro-hydraulic telescopic component 404 is fixed to the bottom of the second mold 402, and the telescopic rod end of the second electro-hydraulic telescopic component 404 is connected to the bottom of the first mold 401. The telescopic rod guide of the second electro-hydraulic telescopic component 404 is consistent with the guide rail 405. After the first pressing stage is completed, the second mold 402 is pulled by controlling the second electro-hydraulic telescopic component 404, causing the secondary pressure rods 4021 on the second mold 402 to compress the wire. Figure 10 As shown, this stage is the second pressing stage, in which the wire is formed in the cavity between the pressing nozzle 4011 and the pressing groove 1022.

[0026] The technical solutions in the above embodiments of this application have at least the following technical effects or advantages: By setting a two-stage extrusion process, the present invention forms a seamless contact rivet head cavity between the pressing nozzle 4011 and the pressing groove 1022 in the first pressing state stage, and then forms the wire in the cavity between the pressing nozzle 4011 and the pressing groove 1022 in the second pressing state stage, so that the formed contact workpiece has no burrs and greatly improves the yield.

[0027] Example 4 like Figure 11 As shown, a first pneumatic slide cavity 1012 is provided inside the main shaft core 101 and on the side near the secondary extrusion die 4. A first airtight slide strip 1013 is slidably connected inside the first pneumatic slide cavity 1012. The first airtight slide strip 1013 is provided with a support pin 1014 that corresponds one-to-one with the wire insertion hole 1021 provided on the extrusion die 102. The diameter of the support pin 1014 matches the diameter of the wire insertion hole 1021. A main air supply channel 1011 is provided at the axial position of the main shaft core 101. The main air supply channel 1011 is connected to the air chamber of the first pneumatic slide cavity 1012. The main air supply channel 1011 is connected to an air inlet pipe 1018 that extends to the outside of the continuous extrusion machine body 1 for connecting an external air pump device. Under the air supply of the air pump, the first air pressure sliding chamber 1012 is filled with air. At this time, the first airtight sliding strip 1013 slides to insert the support pin 1014 into the corresponding wire insertion hole 1021 to support the inner end of the wire. After the molding is completed, the air pump is pumped out to retract the support pin 1014 without affecting the rotation of the extrusion die 102.

[0028] Inside the main spindle core 101 and at the bottom position, there is a second pneumatic slide cavity 1015. A second airtight slide strip 1016 is slidably connected in the second pneumatic slide cavity 1015. The bottom of the second airtight slide strip 1016 is provided with a stripping pin 1017 corresponding to the wire insertion hole 1021 provided in the extrusion die 102. The air chamber of the second pneumatic slide cavity 1015 is connected to the main air supply channel 1011. Under the air supply of the air pump equipment, the second pneumatic slide cavity 1015 is filled with air. At this time, the second airtight slide strip 1016 slides to insert the stripping pin 1017 into the corresponding wire insertion hole 1021, and push out the formed rivet contact piece in the wire insertion hole 1021.

[0029] The technical solutions in the above embodiments of this application have at least the following technical effects or advantages: When the air is supplied by the air pump, the second air pressure sliding cavity 1015 is filled with air. At this time, the second airtight sliding strip 1016 slides to insert the stripping pin 1017 into the corresponding wire insertion hole 1021, thereby pushing out the formed rivet contact piece in the wire insertion hole 1021, so that the stripping is quick and effective.

[0030] Of course, the present invention may have many other embodiments. Based on this embodiment, other embodiments obtained by those skilled in the art without any creative effort are all within the scope of protection of the present invention.

Claims

1. A continuous extrusion press for producing tellurium copper alloy contacts for high-voltage relays in new energy vehicles, comprising a continuous extrusion press body (1), characterized in that, The continuous extrusion machine body (1) has a main shaft core (101) fixed in the middle. The main shaft core (101) is rotatably connected to the extrusion bottom die (102). The outer surface of the extrusion bottom die (102) is provided with four processing surfaces arranged in a ring array. A row of wire insertion holes (1021) are opened on the processing surfaces at equal intervals. The continuous extrusion machine body (1) is provided with a cutting support top frame (103) located directly above the extrusion bottom die (102). A cutting device (3) is provided on the cutting support top frame (103). The continuous extrusion machine body (1) is provided with a secondary extrusion top die (4) located on one side of the extrusion bottom die (102). The bottom of the continuous extrusion machine body (1) is provided with a guide plate (104) located below the extrusion bottom die (102). The cutting device (3) includes a pair of cutting shears (301) located directly above the extrusion die (102). The pair of cutting shears (301) are provided with cutting tools (302) on one side close to each other. The outer sides of the two cutting shears (301) are provided with a pair of horizontal and outwardly extending guide rods (3011). The cutting support top frame (103) is integrally formed with a guide rod support arm (1031) for sliding support with the guide rods (3011). The secondary extrusion die (4) includes a first die (401) and a second die (402). The first die (401) has a row of pressing nozzles (4011) on the side near the extrusion die (102). The pressing nozzles (4011) on the first die (401) correspond one-to-one with the wire insertion holes (1021) on the extrusion die (1022). The ends of the wire insertion holes (1021) are provided with pressing grooves (1022). The diameter of the 011) matches the diameter of the pressing groove (1022). A row of secondary pressing rods (4021) is fixed on the side of the second mold (402) near the first mold (401). The row of secondary pressing rods (4021) corresponds one-to-one with the pressing nozzle (4011) provided on the first mold (401). The secondary pressing rods (4021) slide through the first mold (401) and extend to the pressing nozzle (4011).

2. The continuous extrusion press for producing tellurium copper alloy contacts for high-voltage relays in new energy vehicles according to claim 1, characterized in that, The outer ring of one end of the extrusion die (102) is provided with a gear ring (1023). The continuous extrusion machine body (1) is provided with a shift motor (2) on the same side of the outer wall as the gear ring (1023). The output shaft end of the shift motor (2) is provided with a shift drive gear (201), and the shift drive gear (201) is engaged with the gear ring (1023) provided on the extrusion die (102).

3. The continuous extrusion press for producing tellurium copper alloy contacts for high-voltage relays in new energy vehicles according to claim 1, characterized in that, Both ends of the two cutting shear frames (301) are integrally formed with cutting transmission racks (3012). The cutting transmission racks (3012) on the same side of the two cutting shear frames (301) are arranged in parallel and staggered. The cutting transmission racks (3012) on the same side of the two cutting shear frames (301) are equipped with cutting transmission gears (501) for meshing transmission. The top of the cutting support top frame (103) is equipped with a cutting motor (5), and the output shaft end of the cutting motor (5) is connected to one of the cutting transmission gears (501) for transmission.

4. The continuous extrusion press for producing tellurium copper alloy contacts for high-voltage relays in new energy vehicles according to claim 1, characterized in that, The bottom of the cutting scissor frame (301) and the position corresponding to each wire insertion hole (1021) are integrally formed with a wire straightening part (3013), which is a semi-circular ring structure.

5. A continuous extrusion press for producing tellurium copper alloy contacts for high-voltage relays in new energy vehicles according to claim 1, characterized in that, The inner wall of the continuous extrusion machine body (1) and both sides of the first mold (401) are provided with horizontally lateral guide rails (405). The first mold (401) is provided with extrusion guide slides (4012) on both sides, and the extrusion guide slides (4012) provided on both sides of the first mold (401) are slidably connected to the guide rails (405) on both sides respectively.

6. The continuous extrusion press for producing tellurium copper alloy contacts for high-voltage relays in new energy vehicles according to claim 5, characterized in that, The continuous extrusion machine body (1) is provided with a first electro-hydraulic telescopic component (403) on the side wall away from the extrusion bottom die (102). The telescopic rod of the first electro-hydraulic telescopic component (403) is connected to the extrusion guide slide (4012), and the telescopic guide of the first electro-hydraulic telescopic component (403) is consistent with the guide of the guide rail (405).

7. The continuous extrusion press for producing tellurium copper alloy contacts for high-voltage relays in new energy vehicles according to claim 1, characterized in that, The bottom of the second mold (402) is fixed with a second electro-hydraulic telescopic component (404), and the telescopic rod end of the second electro-hydraulic telescopic component (404) is connected to the bottom of the first mold (401).

8. The continuous extrusion press for producing tellurium copper alloy contacts for high-voltage relays in new energy vehicles according to claim 1, characterized in that, The main spindle core (101) has a first pneumatic slide cavity (1012) inside and near the secondary extrusion die (4). The first pneumatic slide cavity (1012) is sealed and slidably connected with a first airtight slide strip (1013). The first airtight slide strip (1013) is provided with a support pin (1014) that corresponds one-to-one with the wire insertion hole (1021) provided on the extrusion die (102). The diameter of the support pin (1014) matches the diameter of the wire insertion hole (1021).

9. The continuous extrusion press for producing tellurium copper alloy contacts for high-voltage relays in new energy vehicles according to claim 8, characterized in that, The main shaft core (101) has a main air supply channel (1011) at its axial position. The main air supply channel (1011) is connected to the air chamber of the first air pressure sliding chamber (1012). The main air supply channel (1011) is connected to an air inlet pipe (1018) that extends to the outside of the continuous extrusion machine body (1).

10. The continuous extrusion press for producing tellurium copper alloy contacts for high-voltage relays in new energy vehicles according to claim 9, characterized in that, The main spindle core (101) is provided with a second pneumatic slide cavity (1015) at the bottom. A second airtight slide strip (1016) is slidably connected in the second pneumatic slide cavity (1015). The bottom of the second airtight slide strip (1016) is provided with a stripping pin (1017) that corresponds one-to-one with the wire insertion hole (1021) provided on the extrusion die (102). The air chamber of the second pneumatic slide cavity (1015) is connected to the main air supply channel (1011).

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