A processing device for T-shaped bending and forming of armored heating cable
By designing a T-bend winding processing device for armored heating cables, the problems of low molding efficiency and high scrap rate in the prior art are solved, and efficient, symmetrical and consistent T-bend winding is achieved, reducing the scrap rate of the cable.
Patent Information
- Application Number
- CN202411106145.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-13
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2044-08-13
AI Technical Summary
In the prior art, the T-shaped bending efficiency of armored heating cables is low, manual operation leads to asymmetry and poor consistency, and is prone to damage the internal structure of the cable, resulting in high scrap rate.
Design a processing device for T-shaped bending of armored heating cables, including frames, bending forming devices, cylinders and control systems. T-shaped bending forming is realized through mechanical forming equipment to ensure that the bending deformation is controllable and avoid the problem of not centering of the extrusion spiral heating wire and core wire.
It greatly improves the production efficiency of armored heating cables, reduces the problems of asymmetry and poor consistency after forming, reduces the scrap rate, and ensures high-quality molding of the cable during the T-bending process.
Smart Images
Figure CN118952635B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of bending and winding of armored cables, and in particular to a processing device for T-shaped bending and winding of armored heating cables. Background Art
[0002] The T-shaped bent armored heating cable is used for the T-shaped hot knife in the thermal unlocking mechanism of spacecraft in the aerospace field. It achieves unlocking by locally heating and melting the connecting wire. The diameter of the armored heating cable is generally about 2mm, and it consists of three parts: core wire, insulation layer, and outer sleeve. Among them, the middle section of the core wire is the heating section of the spiral heating wire structure, and the two ends are non-heating sections. When the armored heating cable is bent and formed, if the bending deformation is too large, the spiral heating wire will be squeezed, causing abnormal resistance; or the core wire will not be centered, resulting in the insulation layer being too thin, causing the insulation performance of the armored heating cable to decrease, the electrical strength is unqualified, and other problems. And because the armored heating cable needs to be bent into a special "T"-shaped shape, the "T"-shaped structure has multiple bending angles, a complex shape, and is difficult to form.
[0003] In the prior art, one end of the armored heating cable is generally fixed, and then a lever and a limiter are used to manually bend the armored heating cable from the free end to the fixed end at various angles to form a T-shaped bend. This method is not only inefficient, taking an average of twenty minutes to complete one, making it difficult to achieve mass production, but is also greatly affected by manual operation. There are problems of asymmetry and poor consistency after forming, and it is easy to damage the internal structure of the armored heating cable, causing the electrical performance indicators to be unqualified and the overall scrap rate to be high. Summary of the invention
[0004] In view of the above-mentioned problems, the present invention provides a processing device for T-shaped bending and forming of armored heating cables, which can improve the forming efficiency of armored heating cables and reduce the scrap rate.
[0005] The technical solution of the present invention is: a processing device for T-shaped bending and forming of an armored heating cable, comprising a frame, a bending and forming device is arranged on the workbench of the frame, the bending and forming device comprises a lower mold mounting plate, an upper mold mounting plate, a cylinder mounting frame, and a cylinder, the cylinder mounting frame is supported above the workbench by four columns, the cylinder is mounted on the cylinder mounting frame, the piston rod of the cylinder extends downward and is fixedly connected to a movable plate, the movable plate is located between the four columns, the upper mold mounting plate is fixed to the lower end of the movable plate and extends downward, the lower mold mounting plate is fixed to the upper end of a fixed plate, the lower mold mounting plate extends upward, the fixed plate is located below the movable plate and is connected and fixed to the workbench, the fixed plate is symmetrically provided with two bending forming rods, the two bending forming rods The rod is located on both sides of the lower mold mounting plate, and the fixed end of the bending forming rod is hinged with the hinge seat arranged on the fixed plate, and the movable plate is symmetrically provided with two connecting rods, and the two connecting rods are located on both sides of the upper mold mounting plate, the upper end of the connecting rod is hinged with the hinge seat arranged on the movable plate, and the lower end is hinged with the free end of the bending forming rod, and the free end of the bending forming rod is provided with an extended pointed head, and the tip of the pointed head is a circular arc transition, a T-shaped bending upper mold is arranged on one side of the upper mold mounting plate, and a lower mold with a bending groove is arranged on one side of the lower mold mounting plate, and two horizontally extending guide pins are arranged above the lower mold, and a space for the T-shaped bending upper mold to pass through is reserved between the two guide pins, and an air compressor is arranged at the lower part of the frame, and the air compressor is electrically connected to the cylinder through an air pipe.
[0006] Preferably, the distance between the two guide pins is equal to the width of the pressing head of the T-bending upper die, and the size of the bending groove of the lower die matches the size of the pressing head of the T-bending upper die.
[0007] Preferably, a limiting groove is provided on the guide pin, and the groove width of the limiting groove matches the diameter of the armored heating cable, so as to limit the armored heating cable.
[0008] Preferably, the pointed tip of the free end of the bending forming rod is in an arc transition, and a semicircular groove is provided on the arc transition.
[0009] Preferably, linear optical axes are provided on both sides of the cylinder, the linear optical axes are mounted on the cylinder mounting frame, and the two linear optical axes are fixedly connected to the upper end surface of the movable plate.
[0010] Preferably, a controller is arranged on the workbench of the frame, and the controller is electrically connected to the cylinder.
[0011] Preferably, the cylinder mounting frame comprises a first cross beam, a first longitudinal beam, and a second cross beam. Two second cross beams are provided, which are respectively fixedly connected to the upper ends of four columns. Two first longitudinal beams are provided, and the two first longitudinal beams are fixed to the upper ends of the two second cross beams. The first cross beam is fixed to the upper ends of the two first longitudinal beams, and the cylinder is installed on the first cross beam.
[0012] Preferably, a plurality of dampers are fixedly connected to each first longitudinal beam.
[0013] Preferably, universal wheels are provided at the bottom of the frame.
[0014] The beneficial effects of the present invention are as follows: the present invention completes the entire T-shaped bending and winding process of the armored heating cable through mechanical forming equipment, which greatly improves the production efficiency and avoids the problems of asymmetry and poor consistency after forming due to manual bending and winding, and ensures that the bending deformation of the armored heating cable during the T-shaped bending process is controllable, avoiding squeezing of the spiral heating wire to cause abnormal resistance; or making the core wire not centered, resulting in the insulation layer being too thin, causing the insulation performance of the armored heating cable to decrease, the electrical strength to be unqualified, and other problems, greatly reducing the scrap rate of the armored heating cable after forming. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a structural schematic diagram of the present invention;
[0016] Figure 2 It is a schematic structural diagram of the bending and forming device of the present invention;
[0017] Figure 3 It is a schematic structural diagram of the limit block of the present invention;
[0018] Figure 4 It is a structural schematic diagram of the shaping block of the present invention;
[0019] Figure 5 This is a schematic diagram of the first stage of T-shaped bending and forming of the armored heating cable of the present invention;
[0020] Figure 6 It is a schematic diagram of the second stage of T-shaped bending and forming of the armored heating cable of the present invention;
[0021] Figure 7 It is a schematic diagram of the third stage of T-shaped bending and forming of the armored heating cable of the present invention. DETAILED DESCRIPTION
[0022] See also Figures 1 to 7A processing device for T-shaped bending and forming of armored heating cables, comprising a frame 14, a universal wheel 16 is provided at the bottom of the frame 14 to facilitate the movement of the processing device, a bending and forming device is arranged on the workbench 12 of the frame 14, the bending and forming device comprises a lower mold mounting plate 17, an upper mold mounting plate 20, a cylinder mounting frame, and a cylinder 1, the cylinder mounting frame comprises a first cross beam 3, a first longitudinal beam 4, and a second cross beam 5, the second cross beam 5 is provided with two, and is respectively fixedly connected to the upper ends of four columns 9, the first longitudinal beam 4 is provided with two, the two first longitudinal beams 4 are fixed at the upper ends of the two second cross beams 5, and two dampers 41 are respectively fixedly connected to each first longitudinal beam 4, which are used for buffering and shock reduction when the processing equipment is reset after each bending of the T-armored heating cable, protecting various mechanical structures, and extending the service life of the processing equipment. The first cross beam 3 is fixed at the upper ends of the two first longitudinal beams 4, and the cylinder 1 is installed on the first cross beam 3. The cylinder mounting frame is supported above the workbench 12 by four columns 9, the cylinder 1 is mounted on the cylinder mounting frame, the piston rod of the cylinder 1 extends downward and is fixedly connected to a movable plate 6, linear optical axes 2 are provided on both sides of the cylinder 1, and the linear optical axes 2 are mounted on the cylinder mounting frame. Both linear optical axes 2 are fixedly connected to the upper end surface of the movable plate 6 to ensure that the movable plate 6 will not deviate when moving up and down, ensuring the T-shaped bending of the armored heating cable 19. The movable plate 6 is located between the four columns 9, the upper die mounting plate 20 is fixed to the lower end of the movable plate 6 and extends downward, the lower die mounting plate 17 is fixed to the upper end of a fixed plate 10, the lower die mounting plate 17 extends upward, the fixed plate 10 is located below the movable plate 6 and is connected and fixed to the workbench 12, the fixed plate 10 is symmetrically provided with two bending forming rods 8, the two bending forming rods 8 are located on both sides of the lower die mounting plate 17, the fixed ends of the bending forming rods 8 are hinged to the hinge seats provided on the fixed plate 10, the movable plate 6 is symmetrically provided with two connecting rods 7, the two connecting rods 7 are located on the upper die mounting plate On both sides of the mounting plate 20, the upper end of the connecting rod 7 is hinged to the hinge seat arranged on the movable plate 6, and the lower end is hinged to the free end of the bending forming rod 8. The free end of the bending forming rod 8 is provided with an extended pointed head 81, and the tip of the pointed head 81 is a circular arc transition. A semicircular groove is provided on the circular arc transition. The semicircular groove is used to increase the contact area with the armored heating cable 19 and reduce the deformation of the cross-sectional area of the armored heating cable 19 after bending, ensuring that the internal structure of the armored heating cable 19 is not damaged. At the same time, the armored heating cable 19 can be limited to prevent the armored heating cable 19 from shifting. A T-shaped bending upper die 21 is arranged on one side of the upper die mounting plate 20, and a lower die 172 with a bending groove is arranged on one side of the lower die mounting plate 17. The size of the bending groove of the lower die 172 matches the size of the pressure head 211 of the T-shaped bending upper die 21, ensuring that the armored heating cable 19 can fit tightly against the T-shaped bending upper die 21, so that the bent and formed armored heating cable 19 is more symmetrical and has better consistency.Two horizontally extending guide pins 171 are arranged above the lower die 172. The distance between the two guide pins 171 is slightly larger than the width of the pressure head 211 of the T-bending upper die 21, so as to ensure that the T-bending upper die 21 can pass through the space between the two guide pins 171. The guide pins 171 are provided with a limiting groove, and the groove width of the limiting groove matches the diameter of the armored heating cable 19, so as to limit the armored heating cable 19. A mounting bracket 15 is arranged at the lower part of the frame 14, and an air compressor 13 is installed on the mounting bracket 15. The air compressor 13 is electrically connected to the cylinder 1 through the air pipe 18, so as to drive the cylinder 1. A controller 11 is arranged on the workbench 12 of the frame 14, and the controller 11 is electrically connected to the cylinder 1.
[0023] The working principle of the present invention is: first, the processing device is moved to a suitable position, and the armored heating cable 19 is placed in the limiting grooves of the two guide pins 171 of the lower mold 172. Then, the air compressor 13 is started, and the switch of the controller 11 is pressed to drive the piston rod of the cylinder 1 to extend downward, driving the movable plate 6 to move downward, so that the two connecting rods 7 on the movable plate 6 drive the free end of the bending forming rod 8 on the fixed plate 9 to move closer to the middle lower mold mounting plate 17, and at the same time, the upper mold mounting plate 20 set on the movable plate 6 also moves closer to the lower mold mounting plate 17, so that the pressure head 211 of the T-shaped bending upper mold 21 set on the upper mold mounting plate 20 presses the armored heating cable 19. Figure 5 , forming the first stage of the T-shaped bending of the armored heating cable; then, continue to drive the piston rod of the cylinder 1 to extend downward, drive the movable plate 6 to press downward, so that the pressure head 211 of the T-shaped bending upper die 21 passes through the space between the two guide pins 171 of the lower die 172, such as Figure 6 , forming the second stage of the T-shaped bending and forming of the armored heating cable; then, continue to drive the piston rod of the cylinder 1 to extend downward, drive the movable plate 6 to press downward, so that the pressure head 211 of the T-shaped bending upper die 21 enters the bending groove of the lower die 172, and at the same time, the semicircular groove set on the tip 81 of the free end of the bending forming rod 8 on the fixed plate 9 squeezes the armored heating cable 19 toward the middle, so that the armored heating cable 19 is close to the T-shaped bending upper die 21, and finally the armored heating cable 19 is bent and formed into a T-shaped ring to complete the processing. Finally, press the controller 11 switch again to drive the piston rod of the cylinder 1 to contract, drive the movable plate 6 to move upward, and reset the processing device. In this process, the damper 41 fixedly connected to the first longitudinal beam 4 will support the movable plate 6 in the final stage of the processing device reset, buffering and shock absorption. After the processing device is reset, the bent and formed armored heating cable T-shaped ring can be taken out.
[0024] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification made to the present invention by those skilled in the art without departing from the spirit of the present invention shall fall within the protection scope of the present invention.
Claims
1. A processing device for T-shaped bending of an armored heating cable, comprising a frame (14), characterized in that: A bending and forming device is arranged on the workbench (12) of the frame (14), and the bending and forming device comprises a lower die mounting plate (17), an upper die mounting plate (20), a cylinder mounting frame, and a cylinder (1). The cylinder mounting frame is supported above the workbench (12) by four columns (9). The cylinder (1) is mounted on the cylinder mounting frame. The piston rod of the cylinder (1) extends downward and is fixedly connected to a movable plate (6). The movable plate (6) is located between the four columns (9). The upper die mounting plate (20) is fixed to the lower end of the movable plate (6) and extends downward. The lower die mounting plate (17) is fixed to the upper end of a fixed plate (10). The lower die mounting plate (17) extends upward. The fixed plate (10) is located below the movable plate (6) and is connected and fixed to the workbench (12). The fixed plate (10) is symmetrically provided with two bending and forming rods (8). The two bending and forming rods (8) are located on both sides of the lower die mounting plate (17). The fixed ends of the bending and forming rods (8) The movable plate (6) is hinged to a hinge seat provided on the fixed plate (10); the movable plate (6) is symmetrically provided with two connecting rods (7); the two connecting rods (7) are located on both sides of the upper die mounting plate (20); the upper end of the connecting rod (7) is hinged to the hinge seat provided on the movable plate (6); the lower end is hinged to the free end of the bending forming rod (8); the free end of the bending forming rod (8) is provided with an extended pointed head (81); the tip of the pointed head (81) is in the form of an arc transition; the upper die mounting plate (20) A T-shaped bending upper die (21) is arranged on one side, a lower die (172) provided with a bending groove is arranged on one side of the lower die mounting plate (17), two horizontally extending guide pins (171) are arranged above the lower die (172), and a space for the T-shaped bending upper die (21) to pass through is reserved between the two guide pins (171), and an air compressor (13) is arranged at the lower part of the frame (14), and the air compressor (13) is electrically connected to the cylinder (1) through an air pipe (18).
2. According to claim 1, a processing device for T-shaped bending of an armored heating cable is characterized in that: The distance between the two guide pins (171) is equal to the width of the pressure head (211) of the T-shaped bending upper die (21), and the size of the bending groove of the lower die (172) matches the size of the pressure head (211) of the T-shaped bending upper die (21).
3. A processing device for T-shaped bending of an armored heating cable according to claim 1 or 2, characterized in that: The guide pin (171) is provided with a limiting groove, the groove width of the limiting groove matches the diameter of the armored heating cable (19), and is used to limit the position of the armored heating cable (19).
4. The processing device for T-bending and forming an armored heating cable according to claim 1 is characterized in that: The tip of the pointed head (81) at the free end of the bending and forming rod (8) is in the form of an arc transition, and a semicircular groove is provided on the arc transition.
5. The processing device for T-shaped bending of armored heating cables according to claim 1 is characterized in that: Linear optical axes (2) are provided on both sides of the cylinder (1), and the linear optical axes (2) are mounted on a cylinder mounting frame. Both linear optical axes (2) are fixedly connected to the upper end surface of the movable plate (6).
6. The processing device for T-bending and forming an armored heating cable according to claim 1 is characterized in that: A controller (11) is arranged on the workbench (12) of the frame (14), and the controller (11) is electrically connected to the cylinder (1).
7. The processing device for T-bending and forming an armored heating cable according to claim 1 is characterized in that: The cylinder mounting frame comprises a first cross beam (3), a first longitudinal beam (4), and a second cross beam (5); two second cross beams (5) are provided and are respectively fixedly connected to the upper ends of four columns (9); two first longitudinal beams (4) are provided, and the two first longitudinal beams (4) are fixed to the upper ends of the two second cross beams (5); the first cross beam (3) is fixed to the upper ends of the two first longitudinal beams (4); and the cylinder (1) is mounted on the first cross beam (3).
8. The processing device for T-bending and forming an armored heating cable according to claim 7, characterized in that: A plurality of dampers (41) are respectively fixedly connected to each first longitudinal beam (4).
9. The processing device for T-shaped bending of armored heating cables according to claim 1 is characterized in that: Universal wheels (16) are provided at the bottom of the frame (14).
Citation Information
Patent Citations
Spiral armored cable and production method thereof
CN106205830A
Bottom wrapping machine forming assembly
CN209273956U