A cable copper wire twisting device

Abstract

The present invention relates to the technical field related to cable twisting, and discloses a cable copper wire twisting device, comprising a box body, a first clamping assembly is provided at the front end of the box body, a second clamping assembly is provided in the middle of the box body, and a driving assembly is provided on the lower side of the box body; the present invention can drive the second clamping assembly to rotate by the driving assembly while being able to move smoothly, so that it can move from the head end to the end of the cable stripping part, so as to gradually twist and twist longer copper wires together, thereby improving the quality of the copper wire twisting; and then the second clamping assembly moves to cooperate with the outer end of the push block to slide in contact with the inner end face of the first guide block, so that the second annular shell moves, and the force of the three second arc-shaped clamping plates on the copper wire is continuously increased, thereby avoiding the situation where the clamping force of the cable stripping part is insufficient.

Description

Technical Field

[0001] The invention relates to the technical field related to cable twisting, and in particular to a twisting device for cable copper wires. Background Art

[0002] Cables are usually rope-like cables twisted together by several or several groups of wires (at least two in each group). Copper wires are mostly made of copper. Each group of wires is insulated from each other and often twisted around a center. The entire outer layer is covered with a highly insulating covering layer. The cable has the characteristics of internal power supply and external insulation. Cables are usually measured in meters when leaving the factory. Due to their long length, they cannot meet people's various needs. Therefore, a wire stripping machine must be used to strip the cables of specified lengths. When the cable is stripped, the individual copper wires therein may be scattered. Generally, the cable needs to be soldered on the circuit board. The scattered copper wires may cause poor soldering. Therefore, a wire twisting device is used to twist the copper guide together. The wire twisting device of the cable copper wire in the prior art has the following defects:

[0003] 1. In the prior art, the twisting device of the cable copper wire needs to clamp and fix the unstripped part and the stripped part of the cable respectively, and then the clamping assembly of the cable stripping part needs to be rotated to twist the scattered copper wires together. However, the clamping assembly of the cable stripping part is usually clamped at the end of the cable stripping part for rotation. However, when the cable stripping part is long, the copper wires twisted by rotation cannot be twisted together step by step, and bending and deformation are likely to occur, thereby reducing the quality of the copper wire twisting;

[0004] 2. In the prior art, the twisting device of the cable copper wire clamps, rotates and twists the cable stripping part, and the clamping assembly moves while rotating and twisting, so as to gradually twist the copper wire together and improve the quality of the copper wire twisting. However, when the clamping assembly rotates and twists the end of the cable stripping part and moves, the contact area between the clamping assembly and the cable stripping part is continuously reduced, and it is easy for the clamping force of the clamping assembly to the cable stripping part to be insufficient, so that the end of the cable stripping part cannot be effectively rotated and twisted together;

[0005] 3. In the prior art, the twisting device of the cable copper wire needs to clamp and fix the unstripped part and the stripped part of the cable respectively. However, the clamping force of the unstripped part of the cable cannot be effectively adjusted. When the clamping force is too large, it is easy to cause the internal end face of the cable to be out of round. The wire core inside the cable is not round, which first affects the insulation resistance. The external sheath is not round, which affects the overall strength of the cable and reduces the protection of the wire core, thereby making the cable appearance uneven or bulging. And if the clamping force is too small, when the copper wire is rotated and twisted, the cable is likely to rotate together, thereby affecting the efficiency of rotating and twisting the copper wire. Summary of the invention

[0006] The object of the present invention is to provide a cable copper wire twisting device for overcoming the above-mentioned defects in the prior art.

[0007] The present invention is achieved through the following technical solutions.

[0008] A cable copper wire twisting device of the present invention comprises a box body, a first clamping assembly is provided at the front end of the box body, a second clamping assembly is provided in the middle of the box body, and a driving assembly is provided on the lower side of the box body; the first clamping assembly comprises a first annular shell, the first annular shell is fixed to the front end of the box body, a plurality of first push rods are slidably provided in an internal circular array of the first annular shell, and a first arc clamping plate is fixedly provided at one end of each of the first push rods facing the center of the first annular shell; the second clamping assembly comprises a second annular shell, a plurality of push blocks are slidably provided in an internal circumferential array of the second annular shell, and each of the push blocks The cam is provided with a first spring, and the second spring is provided with a second arc clamping plate at one end of each of the second push rods facing the center of the second annular shell. One end of each of the second push rods is connected to the inside of the push block and is provided with a first spring. A cylinder is fixed to the rear side of the first annular shell, and a plurality of fixed plates are fixed to the outer circumferential array of the second annular shell, and the outer front end of each fixed plate is in contact with the inner thread of the cylinder. A partition is fixed to the inner rear side of the box body, and a first rotating ring is rotatably provided on the partition. A plurality of sliding grooves are provided in the inner circumferential array of the first rotating ring, and the outer rear end of each fixed plate is in sliding contact in the sliding groove.

[0009] According to a further technical solution, the driving assembly includes a motor, a first gear is sleeved on the outer side of the rear end of the first rotating ring, a second gear is sleeved on the outer side of the output end of the motor, and the first gear is meshed with the second gear.

[0010] According to a further technical solution, a second rotating ring is sleeved on the outer side of the front end of the first rotating ring, and the second rotating ring slides in a circular manner inside the partition.

[0011] According to a further technical solution, a plurality of first guide blocks are fixedly provided in an inner circumferential array of the first rotating ring, and an inner end face of each of the first guide blocks is inclined inward from a side toward the first annular shell to a side away from the first annular shell direction, and an outer end of each push block is in arc-shaped surface contact, and an outer end of each push block is in sliding contact with an inner end face of the first guide block.

[0012] According to a further technical solution, a first limiting ring is sleeved on the outer side of each push block, each of the first limiting rings is located inside the second annular shell, a second spring is connected between the outer side of each second arc-shaped clamping plate and the inner side of the second annular shell, and each of the second springs is located on the outer side of the second push rod.

[0013] According to a further technical solution, a first rubber plate is fixedly provided on the inner side of each of the second arc-shaped clamping plates, and a plurality of grooves are provided at intervals on the inner side of each of the first rubber plates.

[0014] According to a further technical solution, a second limiting ring is sleeved on the outer side of each of the first push rods, each of the second limiting rings is located inside the first annular shell, a third spring is connected between each of the second limiting rings and the interior of the first annular shell, and each of the third springs is located on the outer side of the first push rod.

[0015] A further technical solution is that an annular block is provided in an annular sliding manner on the inner outer side of the first annular shell, and a plurality of second guide blocks are fixedly provided in a circular array on the inner side of the annular block, the inner end face of each of the second guide blocks is an arc-shaped surface structure, the outer end of each of the first push rods is an arc-shaped surface structure, and the outer end of each of the first push rods is in sliding contact with the inner end face of the second guide block.

[0016] A further technical solution is that an operating rod is fixedly provided on one side of the annular block, and the operating rod slides in an arc shape on the first annular shell. An arc plate is fixedly provided on the outer side of the operating rod, and a bolt is provided on the upper threaded contact of the arc plate. A plurality of slots are provided at intervals at the front end of the first annular shell, and one end of the bolt slides in the slot.

[0017] According to a further technical solution, a second rubber plate is fixedly provided on the inner side of each of the first arc-shaped clamping plates, and a plurality of rubber protrusions are provided at intervals on the inner side of each of the second rubber plates.

[0018] Beneficial effects of the present invention:

[0019] A cable copper wire twisting device of the present invention is provided with a second clamping assembly, and the first spring and the second spring in the second clamping assembly exert elastic forces on the second arc-shaped clamping plate, so that the three second arc-shaped clamping plates move radially inward to clamp the head end of the cable stripping part; the three second arc-shaped clamping plates are then driven by the driving assembly to rotate and cooperate with the three first rubber plates and a plurality of grooves to rotate and twist the copper wire together; finally, the three push blocks are driven to move by the second annular shell to cooperate with the outer end of the push block to slide in contact with the inner end surface of the first guide block, so that the three push blocks and the three second arc-shaped clamping plates are moved radially inward through the inclined guiding and extruding action of the inner end surfaces of the three first guide blocks, so that the second annular shell is moved while the clamping force of the three second arc-shaped clamping plates on the copper wire is continuously increased, thereby avoiding the situation where the clamping force of the cable stripping part is insufficient;

[0020] A cable copper wire twisting device of the present invention is provided with a driving assembly, and the first rotating ring in the driving assembly rotates to cooperate with the three fixed plates to slide in the three sliding grooves respectively, thereby driving the second annular shell and the three second arc-shaped clamping plates to rotate and twist the copper wire together; then, the outer sides of the front ends of the three fixed plates are in contact with the inner threads of the cylinder to cooperate with the three fixed plates to slide in the three sliding grooves respectively, so that the second annular shell rotates and moves to drive the three second arc-shaped clamping plates to rotate and move, so that it can move from the head end to the end of the cable stripping part, so as to gradually twist and twist the longer copper wires together, thereby improving the twisting quality of the copper wire;

[0021] A cable copper wire twisting device of the present invention is provided with a first clamping assembly, and the annular block in the first clamping assembly rotates clockwise in the first annular shell, thereby driving the three second guide blocks to rotate and cooperate with the inner end surface of the second guide block to slide and contact with the outer end of the first push rod, so as to simultaneously push the three first push rods and the first arc-shaped clamping plate to move radially inward to clamp and fix the end of the unstripped part of the cable; then, the three first arc-shaped clamping plates are moved radially inward to drive the three second rubber plates to move radially inward to cooperate with a plurality of rubber protrusions, thereby further clamping and fixing the cable; and then, the degree of arc-shaped sliding of the operating rod on the first annular shell is controlled to adjust the clamping force of the three first arc-shaped clamping plates on the end of the unstripped part of the cable; finally, one end of the bolt cooperates with the slot to limit and fix the operating rod, so as to avoid the first clamping assembly from loosening when the second clamping assembly moves. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0024] Figure 1 It is an isometric structural schematic diagram of the present invention;

[0025] Figure 2 It is an isometric structural schematic diagram of the first annular shell, the cylinder and the fixing plate in the present invention;

[0026] Figure 3 is an isometric structural schematic diagram of the second clamping assembly in the present invention;

[0027] Figure 4 It is an isometric structural schematic diagram of the driving assembly in the present invention;

[0028] Figure 5 It is a schematic diagram of the isometric structure of the second clamping assembly and the driving assembly in the present invention;

[0029] Figure 6 It is a front view structural schematic diagram of the present invention;

[0030] Figure 7 for Figure 6 Schematic diagram of the cross-sectional structure at AA in the middle;

[0031] Figure 8 for Figure 7 A schematic diagram of the structure of the local enlarged view at D in the middle;

[0032] Fig. 9 for Figure 7 Schematic diagram of the cross-sectional structure at the middle BB;

[0033] Fig.10 for Figure 7 Schematic diagram of the cross-section structure at CC in the middle;

[0034] In the figure, the box body 10, the first annular shell 11, the first arc-shaped clamping plate 12, the second rubber plate 13, the rubber protrusion 14, the first push rod 15, the annular block 16, the second guide block 17, the second limiting ring 18, the third spring 19, the operating rod 20, the arc-shaped plate 21, the bolt 22, the slot 23, the second annular shell 24, the push block 25, the second push rod 26, the first spring 27, the second arc-shaped clamping plate 28, the first rubber plate 29, the groove 30, the second spring 31, the first limiting ring 32, the fixing plate 33, the cylinder 34, the first rotating ring 35, the slide groove 36, the second rotating ring 37, the first gear 38, the first guide block 39, the motor 40, the second gear 41, and the partition 42. DETAILED DESCRIPTION

[0035] Combine the following Figure 1-10 The present invention is described in detail. For the convenience of description, the directions mentioned below are defined as follows: the up, down, left, right, front, and back directions mentioned below are the same as Figure 1 The up-down, left-right, front-back directions of the projection relationship itself are consistent.

[0036] Combined with Figure 1-10A cable copper wire twisting device comprises a box body 10, a first clamping assembly is arranged at the front end of the box body 10, a second clamping assembly is arranged in the middle of the box body 10, and a driving assembly is arranged at the lower side of the box body 10; the first clamping assembly comprises a first annular shell 11, the first annular shell 11 is fixed to the front end of the box body 10, a plurality of first push rods 15 are slidably arranged in an inner circumferential array of the first annular shell 11, and a first arc-shaped clamping plate 12 is fixedly arranged at one end of each first push rod 15 facing the center direction of the first annular shell 11; the second clamping assembly comprises a second annular shell 24, a plurality of push blocks 25 are slidably arranged in an inner circumferential array of the second annular shell 24, and a first arc-shaped clamping plate 12 is fixedly arranged in an inner circumferential array of each push block 25 Two push rods 26, each second push rod 26 is fixedly provided with a second arc clamping plate 28 at one end facing the center of the second annular shell 24, one end of each second push rod 26 is connected to the inside of the push block 25 and is provided with a first spring 27, a cylinder 34 is fixedly provided on the rear side of the first annular shell 11, a plurality of fixed plates 33 are fixedly provided on the outer circumferential array of the second annular shell 24, the front end outer side of each fixed plate 33 is in contact with the inner thread of the cylinder 34, a partition plate 42 is fixedly provided on the inner rear side of the box body 10, a first rotating ring 35 is rotatably provided on the partition plate 42, a plurality of sliding grooves 36 are provided on the inner circumferential array of the first rotating ring 35, and the rear end outer side of each fixed plate 33 is in sliding contact in the sliding groove 36.

[0037] Preferably, the driving assembly includes a motor 40 , a first gear 38 is sleeved on the outer side of the rear end of the first rotating ring 35 , a second gear 41 is sleeved on the outer side of the output end of the motor 40 , and the first gear 38 meshes with the second gear 41 .

[0038] Preferably, a second rotating ring 37 is sleeved on the outer side of the front end of the first rotating ring 35 , and the second rotating ring 37 slides in a circular manner inside the partition 42 .

[0039] Preferably, a plurality of first guide blocks 39 are fixedly provided in an inner circumferential array of the first rotating ring 35, and the inner end face of each first guide block 39 is a structure inclined inward from the side toward the first annular shell 11 to the side away from the first annular shell 11, and the outer end of each push block 25 is in arc surface contact, and the outer end of each push block 25 is in sliding contact with the inner end face of the first guide block 39.

[0040] Preferably, a first limiting ring 32 is sleeved on the outer side of each push block 25, each first limiting ring 32 is located inside the second annular shell 24, a second spring 31 is connected between the outer side of each second arc-shaped clamping plate 28 and the inner side of the second annular shell 24, and each second spring 31 is located on the outer side of the second push rod 26.

[0041] Preferably, a first rubber plate 29 is fixedly provided on the inner side of each second arc-shaped clamping plate 28 , and a plurality of grooves 30 are provided at intervals on the inner side of each first rubber plate 29 .

[0042] Preferably, a second limiting ring 18 is sleeved on the outer side of each first push rod 15 , and each second limiting ring 18 is located inside the first annular shell 11 . A third spring 19 is connected between each second limiting ring 18 and the inside of the first annular shell 11 , and each third spring 19 is located on the outer side of the first push rod 15 .

[0043] Preferably, an annular block 16 is provided in an annular sliding manner on the inner and outer sides of the first annular shell 11, and a plurality of second guide blocks 17 are fixedly provided in an inner circumferential array of the annular block 16. The inner end face of each second guide block 17 is an arc-shaped surface structure, and the outer end of each first push rod 15 is an arc-shaped surface structure, and the outer end of each first push rod 15 is in sliding contact with the inner end face of the second guide block 17.

[0044] Preferably, an operating rod 20 is fixedly provided on one side of the annular block 16, and the operating rod 20 slides in an arc shape on the first annular shell 11. An arc plate 21 is fixedly provided on the outer side of the operating rod 20, and a bolt 22 is provided on the upper threaded contact of the arc plate 21. A plurality of slots 23 are provided at intervals at the front end of the first annular shell 11, and one end of the bolt 22 slides in the slot 23.

[0045] Preferably, a second rubber plate 13 is fixedly disposed on the inner side of each first arc-shaped clamping plate 12 , and a plurality of rubber protrusions 14 are disposed at intervals on the inner side of each second rubber plate 13 .

[0046] In the initial state, the first spring 27 and the second spring 31 are in a compressed state, and the third spring 19 is in a normal state.

[0047] The specific method of using the present invention is as follows: the staff extends one end of the cable into the box body 10 through the inner side of the first annular shell 11, so that the end of the unstripped portion of the cable is located in the first clamping assembly, and the head end of the stripped portion of the cable is located in the second clamping assembly. The two sides near the junction of the unstripped portion of the cable and the stripped portion of the cable are respectively called the end of the unstripped portion of the cable or the head end of the stripped portion of the cable, and the end of the stripped portion of the cable is called the end of the stripped portion of the cable.

[0048] Next, the staff drives the annular block 16 to rotate clockwise in the first annular shell 11 through the operating rod 20. The rotation of the first annular shell 11 drives the three second guide blocks 17 to rotate and cooperate with the inner end surface of the second guide block 17 to slide in contact with the outer end of the first push rod 15, so as to simultaneously push the three first push rods 15 and the first arc-shaped clamping plate 12 to move radially inward to clamp and fix the end of the unstripped part of the cable; and then adjust the clamping force of the three first arc-shaped clamping plates 12 on the end of the unstripped part of the cable by controlling the degree of arc sliding of the operating rod 20 on the first annular shell 11. When the operating rod 20 slides in an arc shape on the first annular shell 11 for a short distance, the annular block 16 rotates to drive the three second guide blocks 17 to rotate for a short distance, so that the second guide block 17 squeezes and pushes the first push rod 15 and the first arc clamping plate 12 for a short distance, and the three first arc clamping plates 12 have a small force on the cable clamping; when the operating rod 20 slides in an arc shape on the first annular shell 11 for a long distance, the annular block 16 rotates to drive the three second guide blocks 17 to rotate for a long distance, so that the second guide block 17 squeezes and pushes the first push rod 15 and the first arc clamping plate 12 for a long distance, and the three first arc clamping plates 12 have a large force on the cable clamping. The movement of the first push rod 15 drives the movement of the second limit ring 18, and the movement of the second limit ring 18 compresses the third spring 19 to generate elastic force, and the elastic force of the third spring 19 acts on the second limit ring 18, which is conducive to the subsequent movement and reset of the first push rod 15.

[0049] The radial inward movement of the three first arc-shaped clamping plates 12 drives the radial inward movement of the three second rubber plates 13 to cooperate with the plurality of rubber protrusions 14, thereby further clamping and fixing the cable; when the first clamping assembly fully clamps and fixes the cable, the staff rotates the bolt 22 so that one end of the bolt 22 enters the corresponding slot 23, thereby limiting and fixing the operating rod 20 through the cooperation of one end of the bolt 22 and the slot 23, thereby preventing the first clamping assembly from loosening when the second clamping assembly moves.

[0050] At this time, the head end of the cable stripping part is located in the second clamping assembly. The elastic force of the first spring 27 on the second push rod 26 pushes the second push rod 26 to move. The movement of the second push rod 26 drives the second arc clamping plate 28 to perform a preliminary clamping effect on the head end of the cable stripping part. Then, the elastic force of the second spring 31 acts on the second arc clamping plate 28, thereby further pushing the second arc clamping plate 28 to move and clamp the head end of the cable stripping part. At the same time, the radial inner sides of the three second arc clamping plates 28 move radially inwardly and respectively drive the three first rubber plates 29 to move radially inwardly to cooperate with the plurality of grooves 30, thereby further clamping the head end of the cable stripping part, and the friction between the inner side of the first rubber plate 29 and the copper wire is increased by the plurality of grooves 30.

[0051] Finally, the staff starts the driving assembly, the motor 40 starts to engage with the first gear 38 through the second gear 41 to drive the first rotating ring 35 to rotate, the first rotating ring 35 rotates through the three fixed plates 33 to slide in the three slide grooves 36 respectively, thereby driving the second annular shell 24 to rotate, the second annular shell 24 rotates to drive the three second arc-shaped clamping plates 28 to rotate, the three second arc-shaped clamping plates 28 rotate to cooperate with the three first rubber plates 29 and a plurality of grooves 30 to rotate and twist the copper wire together; then the three fixed plates 33 slide in the three slide grooves 36 respectively through the outer side of the front end of the three fixed plates 33 contacting with the inner side thread of the cylinder 34, so that the second annular shell 24 rotates and moves to drive the three second arc-shaped clamping plates 28 to rotate and move, so that it can move from the head end to the end of the cable stripping part, so as to gradually twist the longer copper wires together, thereby improving the quality of the copper wire twisting. At the same time, the movement of the second annular shell 24 drives the three push blocks 25 to move, and the outer ends of the push blocks 25 are in sliding contact with the inner end faces of the first guide blocks 39, so that the three push blocks 25 move radially inward through the inclined guiding and extruding action of the inner end faces of the three first guide blocks 39, so that the second annular shell 24 moves while the clamping force of the three second arc-shaped clamping plates 28 on the copper wire is continuously increased, thereby avoiding the situation where the second clamping assembly has insufficient clamping force on the cable stripping part.

[0052] A cable copper wire twisting device of the present invention is provided with a first clamping assembly, and the annular block 16 in the first clamping assembly rotates clockwise in the first annular shell 11, thereby driving the three second guide blocks 17 to rotate and cooperate with the inner end surface of the second guide block 17 to slide and contact with the outer end of the first push rod 15, so as to simultaneously push the three first push rods 15 and the first arc-shaped clamping plate 12 to move radially inwardly to clamp and fix the end of the unstripped part of the cable; then, the three first arc-shaped clamping plates 12 move radially inwardly to drive the three second rubber plates 13 to move radially inwardly to cooperate with a plurality of rubber protrusions 14, thereby further clamping and fixing the cable; and then, by controlling the degree of arc-shaped sliding of the operating rod 20 on the first annular shell 11, the clamping force of the three first arc-shaped clamping plates 12 on the end of the unstripped part of the cable is adjusted; finally, one end of the bolt 22 cooperates with the slot 23 to limit and fix the operating rod 20, so as to avoid the first clamping assembly from loosening when the second clamping assembly moves.

[0053] A cable copper wire twisting device of the present invention is provided with a second clamping assembly, and the first spring 27 and the second spring 31 in the second clamping assembly exert elastic forces on the second arc-shaped clamping plates 28, so that the three second arc-shaped clamping plates 28 move radially inward to clamp the head end of the cable stripping part; the three second arc-shaped clamping plates 28 are then driven by the driving assembly to rotate and cooperate with the three first rubber plates 29 and a plurality of grooves 30 to rotate and twist the copper wire together; finally, the three push blocks 25 are driven to move by the second annular shell 24 to cooperate with the outer end of the push block 25 to slide in contact with the inner end surface of the first guide block 39, so that the three push blocks 25 and the three second arc-shaped clamping plates 28 move radially inward through the inclined guiding and extruding action of the inner end surfaces of the three first guide blocks 39, so that the second annular shell 24 is moved while the clamping force of the three second arc-shaped clamping plates 28 on the copper wire is continuously increased, thereby avoiding the situation where the clamping force of the cable stripping part is insufficient.

[0054] A cable copper wire twisting device of the present invention is provided with a driving component, and the first rotating ring 35 in the driving component rotates to cooperate with the three fixed plates 33 to slide in the three slide grooves 36 respectively, thereby driving the second annular shell 24 and the three second arc-shaped clamping plates 28 to rotate and twist the copper wire together; then, the outer sides of the front ends of the three fixed plates 33 are in contact with the inner threads of the cylinder 34 and cooperate with the three fixed plates 33 to slide in the three slide grooves 36 respectively, so that the second annular shell 24 rotates and moves, driving the three second arc-shaped clamping plates 28 to rotate and move, so that it can move from the head end to the end of the cable stripping part, so as to gradually twist and twist the longer copper wires together, thereby improving the quality of the copper wire twisting.

[0055] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology in this field to understand the content of the present invention and implement it, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A cable copper wire twisting device, characterized in that: The invention comprises a box body (10), wherein a first clamping assembly is provided at the front end of the box body (10), a second clamping assembly is provided in the middle of the box body (10), and a driving assembly is provided on the lower side of the box body (10); the first clamping assembly comprises a first annular shell (11), the first annular shell (11) is fixed on the front end of the box body (10), a plurality of first push rods (15) are slidably provided in a circular array inside the first annular shell (11), and a first arc-shaped clamping plate (12) is fixedly provided at one end of each of the first push rods (15) facing the center of the first annular shell (11); the second clamping assembly comprises a second annular shell (24), a plurality of push blocks (25) are slidably provided in a circular array inside the second annular shell (24), a second push rod (26) is slidably provided inside each of the push blocks (25), and each A second arc-shaped clamping plate (28) is fixedly provided at one end of the second push rod (26) facing the center of the second annular shell (24); one end of each of the second push rods (26) is connected to the inside of the push block (25) and is provided with a first spring (27); a cylinder (34) is fixedly provided on the rear side of the first annular shell (11); a plurality of fixed plates (33) are fixedly provided in an outer circumferential array on the outer side of the second annular shell (24); the outer front end of each fixed plate (33) is in contact with the inner thread of the cylinder (34); a partition (42) is fixedly provided on the inner rear side of the box body (10); a first rotating ring (35) is rotatably provided on the partition (42); a plurality of sliding grooves (36) are provided in an inner circumferential array of the first rotating ring (35); the outer rear end of each fixed plate (33) is in sliding contact in the sliding groove (36).

2. A cable copper wire twisting device according to claim 1, characterized in that: The driving assembly comprises a motor (40), a first gear (38) is sleeved on the outer side of the rear end of the first rotating ring (35), a second gear (41) is sleeved on the outer side of the output end of the motor (40), and the first gear (38) is meshed with the second gear (41).

3. A cable copper wire twisting device according to claim 2, characterized in that: A second rotating ring (37) is sleeved on the outer side of the front end of the first rotating ring (35), and the second rotating ring (37) slides in a circular shape inside the partition (42).

4. A cable copper wire twisting device according to claim 3, characterized in that: A plurality of first guide blocks (39) are fixedly arranged in an array on the inner circumference of the first rotating ring (35), and the inner end surface of each of the first guide blocks (39) is inclined inward from a side facing the first annular shell (11) to a side deviating from the first annular shell (11), and the outer end of each of the push blocks (25) is in arc-shaped surface contact, and the outer end of each of the push blocks (25) is in sliding contact with the inner end surface of the first guide block (39).

5. A cable copper wire twisting device according to claim 1, characterized in that: A first limiting ring (32) is sleeved on the outer side of each push block (25), and each first limiting ring (32) is located inside the second annular shell (24). A second spring (31) is connected between the outer side of each second arc-shaped clamping plate (28) and the inner side of the second annular shell (24), and each second spring (31) is located on the outer side of the second push rod (26).

6. A cable copper wire twisting device according to claim 5, characterized in that: A first rubber plate (29) is fixedly provided on the inner side of each of the second arc-shaped clamping plates (28), and a plurality of grooves (30) are provided at intervals on the inner side of each of the first rubber plates (29).

7. A cable copper wire twisting device according to claim 1, characterized in that: A second limiting ring (18) is sleeved on the outer side of each first push rod (15), and each second limiting ring (18) is located inside the first annular shell (11). A third spring (19) is connected between each second limiting ring (18) and the inside of the first annular shell (11), and each third spring (19) is located on the outer side of the first push rod (15).

8. A cable copper wire twisting device according to claim 7, characterized in that: An annular block (16) is provided in an annular sliding manner on the inner outer side of the first annular shell (11), and a plurality of second guide blocks (17) are fixedly provided in a circular array on the inner side of the annular block (16). The inner end surface of each second guide block (17) is an arc-shaped surface structure, and the outer end of each first push rod (15) is an arc-shaped surface structure. The outer end of each first push rod (15) is in sliding contact with the inner end surface of the second guide block (17).

9. A cable copper wire twisting device according to claim 8, characterized in that: An operating rod (20) is fixedly provided on one side of the annular block (16), and the operating rod (20) slides in an arc shape on the first annular shell (11). An arc plate (21) is fixedly provided on the outer side of the operating rod (20), and a bolt (22) is provided on the upper thread contact of the arc plate (21). A plurality of slots (23) are provided at intervals at the front end of the first annular shell (11), and one end of the bolt (22) slides in the slot (23).

10. A cable copper wire twisting device according to claim 1, characterized in that: A second rubber plate (13) is fixedly provided on the inner side of each of the first arc-shaped clamping plates (12), and a plurality of rubber protrusions (14) are provided at intervals on the inner side of each of the second rubber plates (13).

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