A sheath crimping device for an automotive wire harness and its crimping method

Abstract

The present invention discloses a sheath crimping device for an automotive wire harness and its crimping method, which relates to the technical field of sheath crimping devices. To solve the problem that the existing automotive wire harness terminal crimping device arranges the wire harness in a row and, under the action of external force, crimps the terminal onto the wire harness, thus improving efficiency. However, when crimping the wire harness, it is necessary to cut off the insulating sleeve wrapped outside the conductor at the crimping end, which consumes a large amount of time, and the cut-off ports are often poor in uniformity, resulting in poor sealing at the sheath installation position. It includes a horizontal platform, and a concave platform is arranged at the center position of the horizontal platform. The concave platform is integrally formed with the horizontal platform. A top support platform is arranged at the upper end of the horizontal platform, and the top support platform is integrally formed with the horizontal platform. It also includes: guiding sliding seats, which are arranged on both sides of the top support platform. The guiding sliding seats are integrally formed with the horizontal platform. There are two guiding sliding seats, and load-bearing support blocks are arranged at the upper ends of both guiding sliding seats.

Description

Technical Field

[0001] The present invention relates to the technical field of sheath crimping devices, and particularly to a sheath crimping device for automotive wire harnesses and a crimping method thereof. Background Art

[0002] When an automotive wire harness is docked, the copper sheath required for connection needs to be crimped. Crimping is a permanent connection method that causes deformation or changes in the geometry of the round tube on the wire harness conductor by applying pressure.

[0003] For example, the publication number is: CN113708185A (named an automotive wire harness terminal crimping device), which includes a base, a platform, a crimping device, a clamping device, and a terminal rack; the crimping device and the terminal rack are both installed on the base, and the terminal rack is located on one side of the crimping device and pulls the terminal into the crimping device. The platform is slidably connected to the top of the base, and the clamping device is installed on the platform. The wire harness is clamped by the clamping device, and the wire harness terminals are neatly placed on the terminal rack. A linear guide rail is provided at the top of the base, and the bottom of the platform is slidably connected to the base through the linear guide rail. The crimping device includes a fixed seat, a connecting seat, a seat plate, a cylinder, an upper crimping template, and a lower crimping template. The fixed seat is installed on the base, the connecting seat is installed on the fixed seat, the seat plate is slidably connected to the connecting seat, the upper crimping template is installed on the seat plate, and the lower crimping template is installed on the fixed seat directly below the upper crimping template. The cylinder is installed on the connecting seat, and the output shaft of the cylinder is connected to the upper crimping template.

[0004] The above-mentioned automotive wire harness terminal crimping device arranges the wire harnesses in a row and, under the action of external force, crimps the terminals onto the wire harnesses, thus improving efficiency. However, when crimping the wire harness, the insulating sleeve wrapped around the outside of the conductor at the crimping end needs to be removed. This process consumes a lot of time, and the cut ports are often poorly uniform, resulting in a poor sealing performance at the sheath installation position. Therefore, we provide a sheath crimping device for automotive wire harnesses and a crimping method thereof. Summary of the Invention

[0005] The purpose of the present invention is to provide a sheath crimping device for automotive wire harnesses and a crimping method thereof, so as to solve the problem proposed in the above background art that the existing automotive wire harness terminal crimping device arranges the wire harnesses in a row and, under the action of external force, crimps the terminals onto the wire harnesses, thus improving efficiency. However, when crimping the wire harness, the insulating sleeve wrapped around the outside of the conductor at the crimping end needs to be removed. This process consumes a lot of time, and the cut ports are often poorly uniform, resulting in a poor sealing performance at the sheath installation position.

[0006] To achieve the above object, the present invention provides the following technical solution: A sheath crimping device for an automotive wire harness, including a horizontal platform, a concave platform is arranged at the central position of the horizontal platform, the concave platform is integrally formed with the horizontal platform, a top support platform is arranged at the upper end of the horizontal platform, and the top support platform is integrally formed with the horizontal platform;

[0007] It further includes:

[0008] Guide sliding seats, which are arranged on both sides of the top support platform, the guide sliding seats are integrally formed with the horizontal platform, there are two guide sliding seats, and load-bearing support blocks are arranged at the upper ends of both guide sliding seats, an end position block is arranged at one end of the guide sliding seat, and the end position block is integrally formed with the guide sliding seat;

[0009] A first hydraulic cylinder, which is arranged at the upper end of the concave platform, and a crimping platform is arranged on the piston rod of the first hydraulic cylinder;

[0010] A second hydraulic cylinder, which is arranged at the upper end of the top support platform, and a movable pressing plate is arranged on the piston rod of the second hydraulic cylinder;

[0011] Support seats, which are respectively arranged on the crimping platform and the movable pressing plate, the support seats are integrally formed with the crimping platform and the movable pressing plate, and two semi-circular seats are arranged at the upper ends of the support seats, the semi-circular seats are integrally formed with the support seats, and crimping teeth are arranged on the inner walls of the semi-circular seats, and the crimping teeth are integrally formed with the semi-circular seats;

[0012] A cutting groove, which is arranged inside the end position block, the cutting groove is integrally formed with the end position block, and a cutter dropping seat is arranged inside the cutting groove, the cutter dropping seat is integrally formed with the cutting groove, and a tangent cutter is arranged above the cutter dropping seat.

[0013] Preferably, an internal connecting slider is arranged at the bottom of the load-bearing support block, the internal connecting slider is integrally formed with the load-bearing support block, an auxiliary roller is arranged in the bottom groove of the internal connecting slider, the auxiliary roller is movably connected with the internal connecting slider through a bearing and a connecting shaft, and the internal connecting slider is in rolling connection with the guide sliding seat through the auxiliary roller.

[0014] Preferably, limiting sliding grooves are arranged on the inner walls on both sides of the guide sliding seat, the limiting sliding grooves are integrally formed with the guide sliding seat, and anti-detachment edge plates are arranged inside the limiting sliding grooves, and the anti-detachment edge plates are integrally formed with the internal connecting slider.

[0015] Preferably, an internal connecting bearing is arranged inside the load-bearing support block, the internal connecting bearing is fixedly connected with the inner circular hole of the load-bearing support block through a screw, and a wire threading sleeve is arranged inside the internal connecting bearing, and the wire threading sleeve is movably connected with the load-bearing support block through the internal connecting bearing.

[0016] Preferably, a cutting tool slot is provided at the connection position between the tangent cutter and the end position block. The cutting tool slot is internally communicated with the cutting slot. A handle rod is provided at the upper end of the tangent cutter, and the handle rod is integrally formed with the tangent cutter.

[0017] Preferably, the crimping platform is fixedly connected to the piston rod of the first hydraulic cylinder by screws, and the movable pressing plate is fixedly connected to the piston rod of the second hydraulic cylinder by screws.

[0018] Preferably, two support plates are provided at the lower end of the horizontal platform, and the support plates are integrally formed with the horizontal platform.

[0019] Preferably, a copper pipe sheath is placed on the upper end of one of the semi-circular seats, and the copper pipe sheath is formed by crimping through the crimping teeth inside the two semi-circular seats.

[0020] Preferably, a handle plate is provided at the upper end of the bearing support block, and the handle plate is integrally formed with the bearing support block.

[0021] Preferably, a crimping method for a sheath crimping device for automotive wire harnesses includes the following steps:

[0022] Step 1: Insert two automotive wire harnesses to be butt-jointed into the wire threading sleeves inside the two bearing support blocks respectively, and make the part where the sheath needs to be removed extend out of the other end of the bearing support block;

[0023] Step 2: Move the auxiliary roller inside the guiding sliding seat, pull the handle plate to drive the bearing support block to move to the position in contact with the end position block, and make the extended automotive wire harness pass through the cutting slot inside the end position block;

[0024] Step 3: Then grasp the handle rod and operate the tangent cutter to cut the sheath of the extended end of the automotive wire harness. During the cutting process, rotate the automotive wire harness through the movable connection between the wire threading sleeve and the bearing support block, and perform a 360-degree rotary cutting;

[0025] Step 4: After the sheath is cut, place a copper pipe sheath required for crimping on the two semi-circular seats on the crimping platform, and then drive the crimping platform to move to the horizontal height position of the two horizontal platforms through the first hydraulic cylinder;

[0026] Step 5: Insert the two wire conductors of the automotive wire harness with the sheath removed into the two ends of the copper pipe sheath respectively, and make the two wire conductors overlap and contact inside the copper pipe sheath;

[0027] Step 6: Drive the movable pressing plate to press down through the second hydraulic cylinder, so that the semi-circular seat on the movable pressing plate moves to the upper end of the copper pipe sheath, and the four semi-circular seats perform a crimping process on the copper pipe sheath and the inserted wire conductors through the crimping teeth.

[0028] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0029] 1. The present invention grabs the handle rod to operate the tangent knife to cut the sheath of the extension end of the automotive wire harness. The two wires of the automotive wire harness with the sheath removed are respectively inserted into both ends of the copper tube sheath, and the two wires overlap and contact inside the copper tube sheath. The second hydraulic cylinder drives the movable pressing plate to press down, so that the semi-circular seat on the movable pressing plate moves to the upper end of the copper tube sheath. The four semi-circular seats perform a crimping process on the copper tube sheath and the inserted wires, achieving the purpose of integrating tangent and crimping, improving the overall efficiency in the crimping process of the automotive wire harness, and overcoming the problem that the existing automotive wire harness terminal crimping device arranges the wire harness in a row and crimps the terminal on the wire harness under the action of external force to improve efficiency, but the insulating sleeve wrapped outside the conductor at the crimping end needs to be removed during the crimping of the wire harness, and this process consumes a lot of time.

[0030] 2. The auxiliary roller moves inside the guiding sliding seat, pulls the handle plate to drive the bearing support block to move to the position in contact with the end block, and makes the extended automotive wire harness pass through the cutting groove inside the end block. During the cutting process, the automotive wire harness is rotated through the movable connection between the wire threading sleeve and the bearing support block, and a 360-degree rotary cutting is performed, improving the sheath cutting and overcoming the problem that the cut port is often less uniform, resulting in a poor sealing performance at the sheath installation position. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a schematic diagram of the overall structure of the sheath crimping device for automotive wire harnesses of the present invention;

[0032] Figure 2 is a schematic diagram of the connection structure between the bearing support block and the guiding sliding seat of the present invention;

[0033] Figure 3 is a schematic diagram of the internal structure of the end block of the present invention;

[0034] Figure 4 is a schematic diagram of the structure of the crimping platform of the present invention;

[0035] Figure 5 is a schematic diagram of the copper tube sheath crimping structure of the present invention;

[0036] In the figure: 1. Horizontal platform; 2. Support frame plate; 3. Concave platform; 4. Top frame platform; 5. Guide sliding seat; 6. Bearing support block; 7. Handle plate; 8. End position block; 9. First hydraulic cylinder; 10. Crimping platform; 11. Second hydraulic cylinder; 12. Movable pressure plate; 13. Support seat; 14. Semi-circular seat; 15. Inner bearing; 16. Threading sleeve; 17. Limit sliding groove; 18. Inner sliding block; 19. Anti-detachment edge plate; 20. Auxiliary roller; 21. Cutting groove; 22. Knife-drop through groove; 23. Tangent knife; 24. Handle rod; 25. Knife-drop seat; 26. Crimping teeth; 27. Copper pipe sheath. Detailed implementation mode

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0038] Please refer to Figures 1-5 , an embodiment provided by the present invention: A sheath crimping device for automotive wire harnesses, including a horizontal platform 1, a concave platform 3 is arranged at the central position of the horizontal platform 1, the concave platform 3 is integrally formed with the horizontal platform 1, a top frame platform 4 is arranged at the upper end of the horizontal platform 1, and the top frame platform 4 is integrally formed with the horizontal platform 1;

[0039] It also includes:

[0040] Guide sliding seats 5, which are arranged on both sides of the top frame platform 4, the guide sliding seats 5 are integrally formed with the horizontal platform 1, there are two guide sliding seats 5, and bearing support blocks 6 are arranged at the upper ends of both guide sliding seats 5, and an end position block 8 is arranged at one end of the guide sliding seat 5, and the end position block 8 is integrally formed with the guide sliding seat 5;

[0041] The first hydraulic cylinder 9 is arranged at the upper end of the concave platform 3, and a crimping platform 10 is arranged on the piston rod of the first hydraulic cylinder 9;

[0042] The second hydraulic cylinder 11 is arranged at the upper end of the top frame platform 4, and a movable pressure plate 12 is arranged on the piston rod of the second hydraulic cylinder 11;

[0043] Support seats 13 are respectively arranged on the crimping platform 10 and the movable pressure plate 12, the support seats 13 are integrally formed with the crimping platform 10 and the movable pressure plate 12, and two semi-circular seats 14 are arranged at the upper ends of the support seats 13, the semi-circular seats 14 are integrally formed with the support seats 13, and crimping teeth 26 are arranged on the inner walls of the semi-circular seats 14, and the crimping teeth 26 are integrally formed with the semi-circular seats 14;

[0044] A cutting groove 21 is provided inside the end position block 8. The cutting groove 21 is integrally formed with the end position block 8, and a tool dropping seat 25 is arranged inside the cutting groove 21. The tool dropping seat 25 is integrally formed with the cutting groove 21, and a tangent cutter 23 is arranged above the tool dropping seat 25.

[0045] Please refer to Figure 2 , an internal connecting slider 18 is arranged at the bottom of the bearing support block 6. The internal connecting slider 18 is integrally formed with the bearing support block 6. An auxiliary roller 20 is arranged in the bottom groove of the internal connecting slider 18. The auxiliary roller 20 is movably connected to the internal connecting slider 18 through a bearing and a connecting shaft. The internal connecting slider 18 is in rolling connection with the guiding slide base 5 through the auxiliary roller 20. The internal connecting slider 18 arranged at the bottom of the bearing support block 6 serves to assist the movement of the bearing support block 6.

[0046] Please refer to Figure 2 , limiting sliding grooves 17 are arranged on the inner walls on both sides of the guiding slide base 5. The limiting sliding grooves 17 are integrally formed with the guiding slide base 5. An anti - detachment edge plate 19 is arranged inside the limiting sliding grooves 17. The anti - detachment edge plate 19 is integrally formed with the internal connecting slider 18. The limiting sliding grooves 17 arranged on the inner walls on both sides of the guiding slide base 5 serve to limit the anti - detachment edge plate 19.

[0047] Please refer to Figure 2 , an internal connecting bearing 15 is arranged inside the bearing support block 6. The internal connecting bearing 15 is fixedly connected to the inner circular hole of the bearing support block 6 through screws. A wire threading sleeve 16 is arranged inside the internal connecting bearing 15. The wire threading sleeve 16 is movably connected to the bearing support block 6 through the internal connecting bearing 15. The internal connecting bearing 15 arranged inside the bearing support block 6 serves to assist the rotation of the wire threading sleeve 16.

[0048] Please refer to Figure 3 , a tool dropping through - slot 22 is arranged at the connection position between the tangent cutter 23 and the end position block 8. The tool dropping through - slot 22 is in internal communication with the cutting groove 21. A handle rod 24 is arranged at the upper end of the tangent cutter 23. The handle rod 24 is integrally formed with the tangent cutter 23. The tool dropping through - slot 22 arranged at the connection position between the tangent cutter 23 and the end position block 8 serves to assist the movement of the tangent cutter 23.

[0049] Please refer to Figure 1 , the crimping platform 10 is fixedly connected to the piston rod of the first hydraulic cylinder 9 through screws, and the movable pressing plate 12 is fixedly connected to the piston rod of the second hydraulic cylinder 11 through screws.

[0050] Please refer to Figure 1 , two support frame plates 2 are arranged at the lower end of the horizontal platform 1. The support frame plates 2 are integrally formed with the horizontal platform 1. The two support frame plates 2 arranged at the lower end of the horizontal platform 1 serve to support the horizontal platform 1.

[0051] Please refer to Figure 5, a copper pipe sheath 27 is placed on the upper end of a semi-circular seat 14. The copper pipe sheath 27 is formed by crimping through the crimping teeth 26 inside the two semi-circular seats 14. The copper pipe sheath 27 placed on the upper end of a semi-circular seat 14 serves to sleeve two automotive wiring harness wires.

[0052] Please refer to Figure 1 , a handle plate 7 is provided at the upper end of the bearing support block 6. The handle plate 7 is integrally formed with the bearing support block 6. The handle plate 7 provided at the upper end of the bearing support block 6 serves to facilitate the grasping and moving of the bearing support block 6.

[0053] Please refer to Figures 1-5 , a crimping method for a sheath crimping device for automotive wiring harnesses, comprising the following steps:

[0054] Step 1: Insert two automotive wiring harnesses to be butt-jointed into the wire threading sleeves 16 inside the two bearing support blocks 6 respectively, and make the part where the sheath needs to be removed extend out of the other end of the bearing support block 6;

[0055] Step 2: Move the auxiliary roller 20 inside the guiding sliding seat 5, pull the handle plate 7 to drive the bearing support block 6 to move to a position in contact with the end block 8, and make the extended automotive wiring harness pass through the cutting groove 21 inside the end block 8;

[0056] Step 3: Then grasp the handle rod 24 and operate the tangent knife 23 to cut the sheath of the extended end of the automotive wiring harness. During the cutting process, rotate the automotive wiring harness through the movable connection between the wire threading sleeve 16 and the bearing support block 6 for a 360-degree rotary cutting;

[0057] Step 4: After the sheath is cut, place a copper pipe sheath 27 required for crimping on the two semi-circular seats 14 on the crimping platform 10, and then drive the crimping platform 10 to move to the horizontal height position of the two horizontal platforms 1 through the first hydraulic cylinder 9;

[0058] Step 5: Insert the two automotive wiring harness wires with the sheath removed into the two ends of the copper pipe sheath 27 respectively, and make the two wires overlap and contact inside the copper pipe sheath 27;

[0059] Step 6: Drive the movable pressure plate 12 to press down through the second hydraulic cylinder 11, so that the semi-circular seat 14 on the movable pressure plate 12 moves to the upper end of the copper pipe sheath 27, and the four semi-circular seats 14 crimp the copper pipe sheath 27 and the inserted wires through the crimping teeth 26.

[0060] It is obvious to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Thus, all changes that fall within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A sheath crimping device for an automotive wire harness, comprising a horizontal platform (1), a concave platform (3) is arranged at the central position of the horizontal platform (1), the concave platform (3) is integrally formed with the horizontal platform (1), a top support platform (4) is arranged at the upper end of the horizontal platform (1), and the top support platform (4) is integrally formed with the horizontal platform (1); It is characterized in that: It further includes: Guide sliders (5), which are arranged on both sides of the top support platform (4), the guide sliders (5) are integrally formed with the horizontal platform (1), there are two guide sliders (5), and load-bearing support blocks (6) are arranged at the upper ends of both guide sliders (5), an end position block (8) is arranged at one end position of the guide slider (5), and the end position block (8) is integrally formed with the guide slider (5); A first hydraulic cylinder (9), which is arranged at the upper end position of the concave platform (3), and a crimping platform (10) is arranged on the piston rod of the first hydraulic cylinder (9); A second hydraulic cylinder (11), which is arranged at the upper end position of the top support platform (4), and a movable pressing plate (12) is arranged on the piston rod of the second hydraulic cylinder (11); Two supporting seats (13), which are respectively arranged on the crimping platform (10) and the movable pressing plate (12), the two supporting seats (13) are respectively in one-to-one correspondence and integrally formed with the crimping platform (10) and the movable pressing plate (12), and two semi-circular seats (14) are arranged at the upper ends of the supporting seats (13), the semi-circular seats (14) are integrally formed with the supporting seats (13), and crimping teeth (26) are arranged on the inner walls of the semi-circular seats (14), and the crimping teeth (26) are integrally formed with the semi-circular seats (14); A cutting groove (21), which is arranged inside the end position block (8), the cutting groove (21) is integrally formed with the end position block (8), and a cutter dropping seat (25) is arranged inside the cutting groove (21), the cutter dropping seat (25) is integrally formed with the cutting groove (21), and a tangent cutter (23) is arranged above the cutter dropping seat (25).

2. The sheath crimping device for an automotive wiring harness according to claim 1, wherein: An internal connecting slider (18) is arranged at the bottom of the load-bearing support block (6), the internal connecting slider (18) is integrally formed with the load-bearing support block (6), an auxiliary roller (20) is arranged in the bottom groove of the internal connecting slider (18), the auxiliary roller (20) is movably connected with the internal connecting slider (18) through a bearing and a connecting shaft, and the internal connecting slider (18) is in rolling connection with the guide slider (5) through the auxiliary roller (20).

3. The sheath crimping device for automotive wire harness according to claim 2, characterized in that: Limiting sliding grooves (17) are arranged on the inner walls on both sides of the guide slider (5), the limiting sliding grooves (17) are integrally formed with the guide slider (5), and anti-detachment edge plates (19) are arranged inside the limiting sliding grooves (17), and the anti-detachment edge plates (19) are integrally formed with the internal connecting slider (18).

4. The sheath crimping device for an automotive wire harness according to claim 3, wherein: An internal connecting bearing (15) is arranged inside the load-bearing support block (6), the internal connecting bearing (15) is fixedly connected with the internal circular hole of the load-bearing support block (6) through a screw, and a wire threading sleeve (16) is arranged inside the internal connecting bearing (15), and the wire threading sleeve (16) is movably connected with the load-bearing support block (6) through the internal connecting bearing (15).

5. A sheathing crimping device for an automotive wire harness according to claim 4, characterized in that: A knife slot (22) is provided at the connection position between the tangent knife (23) and the end position block (8). The knife slot (22) is internally communicated with the cutting slot (21). A handle rod (24) is provided at the upper end of the tangent knife (23), and the handle rod (24) and the tangent knife (23) are integrally formed.

6. The sheath crimping device for an automotive wire harness according to claim 5, characterized in that: The crimping platform (10) is fixedly connected to the piston rod of the first hydraulic cylinder (9) by screws, and the movable pressing plate (12) is fixedly connected to the piston rod of the second hydraulic cylinder (11) by screws.

7. A sheathing crimping device for an automotive wiring harness according to claim 6, characterized in that: Two support plates (2) are provided at the lower end of the horizontal platform (1), and the support plates (2) and the horizontal platform (1) are integrally formed.

8. A sheath crimping device for an automotive wire harness according to claim 7, characterized in that: A copper pipe sheath (27) is placed on the upper end of one of the semi-circular seats (14), and the copper pipe sheath (27) is crimped by the crimping teeth (26) inside the two semi-circular seats (14).

9. The sheath crimping device for an automotive wire harness according to claim 8, characterized in that: A handle plate (7) is provided at the upper end of the bearing support block (6), and the handle plate (7) and the bearing support block (6) are integrally formed.

10. The crimping method of a crimping device for an automotive wire harness according to claim 9, characterized in that: Including the following steps: Step 1: Insert the two automotive wire harnesses to be butt-jointed into the wire threading sleeves (16) inside the two bearing support blocks (6) respectively, and make the part where the sheath needs to be removed extend out of the other end of the bearing support block (6); Step 2: Move the auxiliary roller (20) inside the guiding sliding seat (5) to drive the handle plate (7) to drive the bearing support block (6) to move to the position in contact with the end position block (8), and make the extended automotive wire harness pass through the cutting slot (21) inside the end position block (8); Step 3: Then grasp the handle rod (24) to operate the tangent knife (23) to cut the sheath of the extended end of the automotive wire harness. During the cutting process, the automotive wire harness is rotated through the movable connection between the wire threading sleeve (16) and the bearing support block (6) for a 360-degree rotary cutting; Step 4: After the sheath is cut, place a copper pipe sheath (27) required for crimping on the two semi-circular seats (14) on the crimping platform (10), and then drive the crimping platform (10) by the first hydraulic cylinder (9) to move to the horizontal height position of the two horizontal platforms (1); Step 5: Insert the two conductors of the automotive wire harness with the sheath removed into the two ends of the copper pipe sheath (27) respectively, and make the two conductors overlap and contact inside the copper pipe sheath (27); Step 6: Drive the movable pressing plate (12) to press down by the second hydraulic cylinder (11), so that the semi-circular seat (14) on the movable pressing plate (12) moves to the upper end of the copper pipe sheath (27), and the four semi-circular seats (14) crimp the copper pipe sheath (27) and the inserted conductors through the crimping teeth (26).

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