A cable conductor joint welding apparatus

Abstract

The application provides a cable conductor joint welding device, relates to the technical field of cable conductor welding, and comprises a welding mechanism, the welding mechanism comprises a welding part, a locking part and a cutting part; the cutting part comprises a driving assembly and two cutting assemblies; the cutting assembly comprises two semicircular grooves and two semicircular sleeves, the two semicircular grooves are respectively arranged in the interiors of a lower shell and an upper shell, and the two semicircular sleeves are respectively fixedly installed in the interiors of the lower shell and the upper shell; when the lower shell is connected with the upper shell, the two semicircular grooves form a circular groove. The application can avoid impurities, size errors and low efficiency caused by manual operation from the source, and can complete cable pretreatment and welding clamping through an integrated mechanical structure standardization, so that the conductive performance, mechanical strength and welding product qualification rate of the cable joint are improved, the application is suitable for field no-electricity construction environment, and the safety hazards of welding liquid leakage and high-temperature splashing are reduced through multiple locking and sealing structures.

Description

Technical Field

[0001] This invention relates to the field of cable conductor welding technology, and in particular to a cable conductor joint welding device. Background Technology

[0002] Exothermic welding, also known as fire mud welding or aluminothermic welding, is a process that uses the chemical reaction between aluminum and copper oxide to generate high-temperature molten copper to achieve metal bonding. The reaction temperature can reach 2537℃. This process is formed by graphite molds and does not require an external power source or heat source. The welding process only takes a few seconds and is suitable for various metal combinations such as copper, steel, and galvanized steel.

[0003] During cable laying, it is often necessary to connect the joints of two cable conductors on-site to form a single unit. Existing technology commonly uses exothermic welding to weld the two cable conductors together. However, this process requires workers to remove the protective layer at the cable conductor joint, separate the cores of the two conductors at the joint, and then place them into the exothermic welding mold for welding. This manual process of stripping and separating the cores at the cable conductor joint can easily lead to oil, dust, and other impurities adhering to the joint, affecting the strength and conductivity of the final welded cable connection. Furthermore, manual stripping and separating is not only inefficient but also prone to errors, impacting the weld quality after the cable conductor joint is connected. Summary of the Invention

[0004] To address the technical problem that manual stripping and core-connecting of cable conductor joints by existing workers is prone to errors and the adhesion of impurities such as oil and dust, which affect the connection strength and conductivity after subsequent welding, this invention provides a cable conductor joint welding device.

[0005] The technical solutions provided by the embodiments of the present invention are as follows: This invention provides a cable conductor joint welding device, comprising: a welding mechanism, wherein the welding mechanism includes a welding component, a locking component, and a cutting component; The cutting component includes a drive assembly and two cutting assemblies; The cutting assembly includes two semi-circular grooves and two semi-circular sleeves. The two semi-circular grooves are respectively formed inside the lower housing and the upper housing. The two semi-circular sleeves are respectively fixedly installed inside the lower housing and the upper housing. When the lower housing and the upper housing are connected, the two semi-circular grooves will form a circular groove, and the two semi-circular sleeves will form a support ring. The outer walls of the two semi-circular grooves are provided with arc-shaped grooves. The interiors of the two arc-shaped grooves are each inserted with a slider. One end of each slider is fixedly connected with a connector. The outer walls of the two connectors are slidably connected with semi-circular rings. The two semi-circular rings are respectively inserted into the interiors of the two semi-circular sleeves.

[0006] The cut-off assembly can circumferentially remove the protective sleeve at the cable conductor joint and spread out the exposed wire core, providing a foundation for the subsequent mating of two cable conductor joints and preventing dust, oil, and other impurities from adhering to the wire core, which would affect the conductivity after subsequent welding.

[0007] Optionally, an elastic piece is fixedly installed on the side of the connector away from the corresponding semicircular sleeve. The elastic piece abuts against the inner wall of the corresponding connector. A ring cutter is fixedly connected to the end of the connector away from the corresponding slider. The ring cutter is used to ring cut the cable conductor protective layer. A semicircular gear is provided on the outer wall of the semicircular ring. A rack meshes on the outer wall of the semicircular gear.

[0008] Optionally, a connecting plate is fixedly connected to the top of the rack, the connecting plate is slidably connected to the inside of the upper housing, and a separator and a cutter are fixedly installed at the bottom of the connecting plate. The separator is a "V" shaped structure composed of multiple separator pieces, and the cutter is used to remove the cable conductor protective layer that has been circumcised by the circumcised cutter.

[0009] Optionally, the drive assembly includes a square frame, which is fixedly connected to the connecting plates of the two cutting assemblies. The square frame is slidably connected inside the upper housing and the second weight-reducing groove. A threaded knob is threadedly connected inside the square frame. The end of the threaded knob near the square frame abuts against the connecting plate. The connecting plate is slidably connected inside the second weight-reducing groove. A triangular insert is fixedly installed on the bottom outer wall of the connecting plate away from the threaded knob. The outer walls of the lower mold and the upper mold are provided with triangular slots corresponding to the triangular inserts. The triangular inserts are used to insert into the interior of the triangular slots to strengthen the locking of the lower mold and the upper mold.

[0010] Optionally, two support members are symmetrically installed inside the lower housing, and each of the two support members is rotatably connected to a support rod at its top. The support rod is used to support and limit the cable conductor.

[0011] The beneficial effects of the technical solutions provided in the embodiments of the present invention include at least the following: 1. By cutting the protective sleeve of the cable conductor joint through the cutting component, the exposed wire core is spread out and the wire core of the cable conductor joint is divided into rows. This provides a basis for the subsequent connection of two cable conductor joints, avoids the wire core from adhering to dust, oil and other impurities, eliminates welding defects caused by impurities, and stabilizes the conductivity and mechanical connection strength of the joint. 2. The integrated cable circumferential stripping, sheath stripping, core separation, mold locking, and exothermic welding functions are integrated into one unit, eliminating the need to replace multiple sets of independent tools; the machine completes stripping and core separation in one go, replacing manual stripping, wire separation, and splicing, shortening on-site construction time and improving the efficiency of welding cable conductor joints. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of a cable conductor joint welding device provided in an embodiment of the present invention.

[0014] Figure 2 This is a cross-sectional view of the welding mechanism structure of a cable conductor joint welding equipment provided in an embodiment of the present invention.

[0015] Figure 3 A cable conductor joint welding device provided in an embodiment of the present invention Figure 2 Enlarged view of the structure of part A.

[0016] Figure 4 This is a schematic diagram of the welding mechanism of a cable conductor joint welding device provided in an embodiment of the present invention from another perspective.

[0017] Figure 5 This is a cross-sectional view of the cut-off component structure of a cable conductor joint welding device provided in an embodiment of the present invention.

[0018] Figure 6 A cable conductor joint welding device provided in an embodiment of the present invention Figure 5 Enlarged view of the structure of part B.

[0019] Figure label: 101. Lower housing; 102. Upper housing; 103. Lower mold; 104. Upper mold; 105. Sealing cover; 106. Placement cavity; 107. Partition; 108. Locking cavity; 109. First weight-reducing groove; 110. Second weight-reducing groove; 201. First threaded connecting rod; 202. Second threaded connecting rod; 203. Connecting block; 204. Locking rod; 205. Rotating wheel; 301. Semicircular groove; 302. Arc groove; 303. Slider; 304. Connector; 305. Elastic sheet; 306. Ring cutter; 307. Semicircular ring; 308. Semicircular gear; 309. Semicircular sleeve; 310. Rack; 311. Connecting plate; 312. Divider; 313. Cutting knife; 314. Support; 315. Support rod; 316. Square frame; 317. Threaded knob; 318. Connecting plate; 319. Triangular insert; 320. Triangular slot.

[0020] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0021] The technical solutions of the present invention will now be described with reference to the accompanying drawings. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some well-known technologies. Furthermore, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0022] like Figures 1 to 6 As shown, an embodiment of the present invention provides a cable conductor joint welding device, including: a welding mechanism, the welding mechanism including a welding component, a locking component and a cutting component; The cut-off component includes a drive assembly and two cut-off assemblies; The cutting assembly includes two semi-circular grooves 301 and two semi-circular sleeves 309. The two semi-circular grooves 301 are respectively opened inside the lower housing 101 and the upper housing 102. The two semi-circular sleeves 309 are respectively fixedly installed inside the lower housing 101 and the upper housing 102. When the lower housing 101 and the upper housing 102 are docked, the two semi-circular grooves 301 will form a circular groove, and the two semi-circular sleeves 309 will form a support ring. The outer walls of the two semi-circular grooves 301 are each provided with an arc-shaped groove 302. The inner walls of the two arc-shaped grooves 302 are each inserted with a slider 303. One end of the two sliders 303 is fixedly connected with a connector 304. The outer walls of the two connectors 304 are each slidably connected with a semi-circular ring 307. The two semi-circular rings 307 are respectively inserted into the inner walls of the two semi-circular sleeves 309.

[0023] It should be noted that the present invention can remove the protective sleeve of the cable conductor joint by cutting the component and spread out the exposed wire cores, dividing the wire cores of the cable conductor joint into rows, providing a basis for the subsequent connection of two cable conductor joints, and avoiding the adhesion of dust, oil and other impurities to the wire cores, which would affect the conductivity after subsequent welding.

[0024] Furthermore, an elastic piece 305 is fixedly installed on the side of the connector 304 away from the corresponding semicircular sleeve 309. The elastic piece 305 abuts against the inner wall of the corresponding connector 304. A ring cutter 306 is fixedly connected to the end of the connector 304 away from the corresponding slider 303. The ring cutter 306 is used to ring cut the cable conductor protective layer. A semicircular gear 308 is opened on the outer wall of the semicircular ring 307. A rack 310 meshes on the outer wall of the semicircular gear 308. A connecting plate 311 is fixedly connected to the top of the rack 310. The connecting plate 311 is slidably connected to the inside of the upper housing 102. A separator 312 and a cutter 313 are fixedly installed at the bottom of the connecting plate 311. The separator 312 is a "V" shaped structure composed of multiple separator pieces. The cutter 313 is used to remove the cable conductor protective layer ring cut by the ring cutter 306. It should be noted that the "V" shaped gaps formed by the separators 312 of the two cutting components are staggered, so that after the two cutting components disperse the wire cores into rows, the wire cores at the joints of the two cable conductors can be inserted into each other, increasing the contact area at the joints of the two cable conductors, thereby improving the connection strength and conductivity of the subsequent welding.

[0025] The drive assembly includes a square frame 316, which is fixedly connected to the connecting plates 311 of the two cutting components. The square frame 316 is slidably connected inside the upper housing 102 and the second weight reduction groove 110. A threaded knob 317 is threadedly connected inside the square frame 316. A connecting plate 318 is abutted at one end of the threaded knob 317 near the square frame 316. The connecting plate 318 is slidably connected inside the second weight reduction groove 110. A triangular insert 319 is fixedly installed on the side of the bottom outer wall of the connecting plate 318 away from the threaded knob 317. Triangular slots 320 corresponding to the triangular insert 319 are opened on the outer walls of the lower mold 103 and the upper mold 104. The triangular insert 319 is used to insert into the interior of the triangular slot 320 to strengthen the locking of the lower mold 103 and the upper mold 104. Two support members 314 are symmetrically installed inside the lower housing 101. A support rod 315 is rotatably connected to the top of each of the two support members 314. The support rod 315 is used to support and limit the cable conductor.

[0026] It should be noted that the present invention can drive and lock the two cutting components through the driving component, so that the driving component can remove the protective layer of the cable conductor joint and spread out the wire core. When spreading out the cutting components, the locking of the lower mold 103 and the upper mold 104 can be strengthened to avoid gaps between the lower mold 103 and the upper mold 104, which would cause copper liquid to leak and affect the connection strength of the cable conductor joint.

[0027] In one possible implementation, the welding component includes a lower housing 101 and an upper housing 102. A lower mold 103 is slidably inserted into the interior of the lower housing 101, and an upper mold 104 is slidably inserted into the interior of the upper housing 102. The upper mold 104 has a first weight-reducing groove 109 and a second weight-reducing groove 110 inside. A sealing cover 105 is hinged to the end of the upper mold 104 away from the lower mold 103. An opening is opened on the side of the sealing cover 105 that is not hinged. A placement cavity 106 is opened inside the upper mold 104. A partition 107 is inserted into the placement cavity 106. The sealing cover 105 is used to seal the placement cavity 106, so that the placement cavity 106 is connected to the outside only through the opening of the sealing cover 105. Locking cavities 108 are opened on the sides of the lower mold 103 and the upper mold 104 that are close to each other. The two locking cavities 108 cooperate to form a cavity for storing cable conductor joints.

[0028] It should be noted that the present invention can use welding components to enclose and seal the joint of the two cable conductors after they have been joined, and then perform exothermic welding to fix the two cable conductors together through the joint.

[0029] In one possible implementation, the locking component includes a first threaded connecting rod 201 and a second threaded connecting rod 202. The first threaded connecting rod 201 is rotatably connected to the interior of the lower housing 101, and the second threaded connecting rod 202 is rotatably connected to the interior of the upper housing 102. The first threaded connecting rod 201 and the upper housing 102 are hinged together. Connecting blocks 203 are threadedly connected to the outer walls of both the first threaded connecting rod 201 and the second threaded connecting rod 202. The connecting blocks 203 on the first threaded connecting rod 201 are slidably connected to the interior of the lower housing 101 and to the lower mold 103. The connecting block 203 on the second threaded connecting rod 202 is slidably connected to the inside of the upper housing 102 and fixedly connected to the upper mold 104. A locking rod 204 is fixedly connected to the side of the connecting block 203 on the first threaded connecting rod 201 near the upper housing 102. The locking rod 204 is slidably connected to the inside of the lower housing 101. The locking rod 204 is used to insert into the inside of the upper housing 102 to lock and fix the lower housing 101 and the upper housing 102. A rotating wheel 205 is fixedly connected to the end of the second threaded connecting rod 202 away from the first threaded connecting rod 201.

[0030] It should be noted that the present invention can lock and fix the welding components through the locking component, so as to avoid the welding components from deforming and creating gaps during the exothermic welding process, which would affect the welding and fixing of the cable conductor joint.

[0031] Working principle: When welding cable conductors, the cable conductor joint is first inserted between the lower housing 101 and the upper housing 102. Then, the threaded knob 317 is pulled, causing the threaded knob 317 to pull the connecting plate 311 down through the square frame 316. This causes the connecting plate 311 to drive the rack 310, the separator 312, and the cutter 313 down. During this process, the rack 310 first drives the gear formed by the semi-circular gears 308 on the two semi-circular rings 307 to rotate, causing the semi-circular rings 307 to drive the connecting piece 304 to rotate together. This, in turn, causes the connecting piece 304 to drive the ring cutter 306 and the sliding blade. Block 303 rotates together, causing slider 303 to disengage from the inside of arc-shaped groove 302 and enter the inside of semi-circular groove 301. Slider 303, through connector 304, compresses elastic sheet 305, causing it to deform and store force. Connector 304 then drives the ring cutter 306 towards the cable conductor, allowing the ring cutter 306 to spiral into the cable conductor's protective layer in an arc shape and perform a ring cut. After the protective layer is ring cut, rack 310 separates from semi-circular gear 308. At this point, cutter 313 begins to cut the ring-cut protective layer, slicing it open from the top. Meanwhile, support rod 315... The cable conductor is supported to prevent deformation during the cutting of the protective layer, which would affect its subsequent entry into the lower mold 103 and upper mold 104. Simultaneously, when the cutter 313 cuts to the bottom of the conductor, it pushes the cut protective layer, causing it to detach along the outer wall of the conductor. This causes the protective layer to rotate with the support roller 315 and exit from the bottom of the lower housing 101. Finally, the separator 312 begins to disperse the conductor with the protective layer removed. The conductor is dispersed through "V"-shaped separators on the separator 312. In the row-by-row state, the worker can pull the threaded knob 317 to reset, so that the threaded knob 317 drives the connecting plate 311 to reset through the square frame 316. The connecting plate 311 drives the separator 312, the cutter 313 and the rack 310 to reset. During the reset process of the rack 310, it will drive the semi-circular ring 307 and the semi-circular gear 308 to reverse and reset. The connecting piece 304 inside the semi-circular ring 307 drives the slider 303 to re-enter the arc groove 302 under the pushing force of the elastic piece 305 along the semi-circular groove 301, so that the ring cutter 306 stops contacting the cable conductor. Furthermore, after the cut-off component is fully reset, the operator continues to move the cable conductors, allowing the two cable conductors to align between the lower mold 103 and the upper mold 104. This allows the rows of wire cores to interlock, increasing the contact area of ​​the wire cores and thus improving the connection strength and conductivity of the subsequent welding. Then, the operator can place the spacer 107 inside the placement cavity 106 and pour the welding flux onto the spacer 107 inside the placement cavity 106. The ignition charge is then placed at the opening between the welding flux and the sealing cap 105. Finally, the rotating wheel 205 is rotated to... Wheel 205 drives the second threaded connecting rod 202 and the first threaded connecting rod 201 to rotate, thereby causing the second threaded connecting rod 202 and the first threaded connecting rod 201 to drive the corresponding connecting blocks 203 to move closer to each other through the threads. This causes the two connecting blocks 203 to drive the corresponding lower mold 103 and upper mold 104 to move closer together and fix them together, clamping and fixing the cable conductor joint connection part inside the locking cavity 108. One of the connecting blocks 203 drives the locking rod 204 to insert into the interior of the upper housing 102, limiting and fixing the rotation of the lower housing 101 and the upper housing 102. The upper mold 104 lowers the sealing cover 105, causing the portion of the sealing cover 105 protruding from the upper mold 104 to be blocked and limited by the upper housing 102, preventing the sealing cover 105 from opening. Then, the threaded knob 317 is rotated, causing the threaded knob 317 to push the connecting plate 318 to slide along the inside of the second weight-reducing groove 110. This allows the connecting plate 318 to drive the triangular insert 319 to insert into the triangular slot 320 of the lower mold 103 and upper mold 104 after docking, thus limiting the lower mold 103 and upper mold 104 from moving away from the connecting block 203, preventing the lower mold 103 and upper mold 104 from moving away from the connecting block 203. One side of the connector 203 wobbles during the exothermic welding process, affecting the welding quality of the cable conductor joint. Finally, the worker uses an ignition gun to ignite the igniter and welding flux inside the placement cavity 106 at the opening of the sealing cover 105. This allows the welding flux to react and generate high temperature, and the molten copper is discharged through the placement cavity 106 into the locking cavity 108 to weld the cable conductor joint. After welding, the worker can reverse the threaded knob 317 and the wheel 205 (avoiding burns) to return the welding mechanism to a loose state, making it easier to remove the welded cable conductor.

[0032] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the preferred embodiments, while those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0033] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A cable conductor joint welding device, characterized in that, include: A welding mechanism, comprising a welding component, a locking component, and a cutting component; The cutting component includes a drive assembly and two cutting assemblies; The cutting assembly includes two semi-circular grooves (301) and two semi-circular sleeves (309). The two semi-circular grooves (301) are respectively opened inside the lower housing (101) and the upper housing (102). The two semi-circular sleeves (309) are respectively fixedly installed inside the lower housing (101) and the upper housing (102). When the lower housing (101) and the upper housing (102) are connected, the two semi-circular grooves (301) will form a circular groove, and the two semi-circular sleeves (309) will form a support ring. The outer walls of the two semi-circular grooves (301) are provided with arc-shaped grooves (302). The interiors of the two arc-shaped grooves (302) are each inserted with a slider (303). One end of the two sliders (303) is fixedly connected with a connector (304). The outer walls of the two connectors (304) are slidably connected with semi-circular rings (307). The two semi-circular rings (307) are respectively inserted into the interiors of the two semi-circular sleeves (309).

2. The cable conductor joint welding equipment according to claim 1, characterized in that, The welding component includes a lower shell (101) and an upper shell (102). A lower mold (103) is slidably inserted into the interior of the lower shell (101), and an upper mold (104) is slidably inserted into the interior of the upper shell (102). A first weight-reducing groove (109) and a second weight-reducing groove (110) are provided inside the upper mold (104).

3. The cable conductor joint welding equipment according to claim 2, characterized in that, The upper mold (104) is hinged to a sealing cap (105) at the end away from the lower mold (103). The sealing cap (105) has an opening on the side where it is not hinged. The upper mold (104) has a placement cavity (106) inside. A partition (107) is inserted into the placement cavity (106). The sealing cap (105) is used to seal the placement cavity (106), so that the placement cavity (106) is connected to the outside only through the opening of the sealing cap (105). The lower mold (103) and the upper mold (104) are both provided with locking cavities (108) on the side that are close to each other. The two locking cavities (108) are fitted together to form a cavity for storing cable conductor joints.

4. The cable conductor joint welding equipment according to claim 3, characterized in that, The locking component includes a first threaded connecting rod (201) and a second threaded connecting rod (202). The first threaded connecting rod (201) is rotatably connected to the inside of the lower housing (101), and the second threaded connecting rod (202) is rotatably connected to the inside of the upper housing (102). The first threaded connecting rod (201) and the upper housing (102) are hinged. Connecting blocks (203) are threadedly connected to the outer walls of both the first threaded connecting rod (201) and the second threaded connecting rod (202). The connecting block (203) on the first threaded connecting rod (201) is slidably connected to the inside of the lower housing (101) and fixedly connected to the lower mold (103). The connecting block (203) on the second threaded connecting rod (202) is slidably connected to the inside of the upper housing (102) and fixedly connected to the upper mold (104). The connecting block (203) on the first threaded connecting rod (201) is fixedly connected to a locking rod (204) on the side near the upper housing (102). The locking rod (204) is slidably connected to the inside of the lower housing (101). The locking rod (204) is used to insert into the inside of the upper housing (102) to lock and fix the lower housing (101) and the upper housing (102). The end of the second threaded connecting rod (202) away from the first threaded connecting rod (201) is fixedly connected to a rotating wheel (205).

5. The cable conductor joint welding equipment according to claim 1, characterized in that, An elastic piece (305) is fixedly installed on the side of the connector (304) away from the corresponding semicircular sleeve (309). The elastic piece (305) abuts against the inner wall of the corresponding connector (304). A ring cutter (306) is fixedly connected to the end of the connector (304) away from the corresponding slider (303). The ring cutter (306) is used to ring cut the cable conductor protective layer. A semicircular gear (308) is provided on the outer wall of the semicircular ring (307). A rack (310) meshes with the outer wall of the semicircular gear (308).

6. The cable conductor joint welding equipment according to claim 5, characterized in that, A connecting plate (311) is fixedly connected to the top of the rack (310). The connecting plate (311) is slidably connected to the inside of the upper housing (102). A separator (312) and a cutter (313) are fixedly installed at the bottom of the connecting plate (311). The separator (312) is a "V" shaped structure composed of multiple separator pieces. The cutter (313) is used to remove the cable conductor protective layer that has been circumcised by the circumcised cutter (306).

7. The cable conductor joint welding equipment according to claim 6, characterized in that, The drive assembly includes a square frame (316), which is fixedly connected to the connecting plates (311) of the two cutting assemblies. The square frame (316) is slidably connected inside the upper housing (102) and the second weight reduction groove (110). A threaded knob (317) is threadedly connected inside the square frame (316). The end of the threaded knob (317) near the square frame (316) abuts against a connecting plate (318). The connecting plate (318) is slidably connected inside the second weight reduction groove (110). A triangular insert (319) is fixedly installed on the side of the bottom outer wall of the connecting plate (318) away from the threaded knob (317). The outer walls of the lower mold (103) and the upper mold (104) are provided with triangular slots (320) corresponding to the triangular insert (319). The triangular insert (319) is used to insert into the interior of the triangular slot (320) to strengthen the locking of the lower mold (103) and the upper mold (104).

8. The cable conductor joint welding equipment according to claim 1, characterized in that, The lower housing (101) has two symmetrically installed support members (314) inside. The top of each of the two support members (314) is rotatably connected to a support rod (315), which is used to support and limit the cable conductor.

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