A fully automatic cable head making device

Abstract

This invention relates to the field of cable head manufacturing equipment technology, and in particular to a fully automatic cable head manufacturing device, including a frame and positioning clamping components. The frame has an annular channel extending in the left-right direction, and the annular channel is coaxial with the cable passing through it. There are multiple positioning clamping components arranged in multiple groups. This invention uses multiple groups of positioning clamping components arranged in a circumferentially staggered manner. Because the multiple groups of positioning clamping components are staggered circumferentially from left to right, they form at least three discontinuous spiral indentations at equal intervals on the cable surface. Compared to forming multiple straight indentations at equal intervals on the cable surface, the spiral indentations, due to their discontinuous distribution along the circumference of the cable, disperse sudden changes in resistance. This significantly reduces the amplitude of force fluctuations on the cutting tool during subsequent circumferential stripping of the cable's insulation.

Description

Technical Field

[0001] This invention relates to the field of cable head manufacturing equipment, and in particular to a fully automatic cable head manufacturing device. Background Technology

[0002] In power transmission, communication transmission, and other engineering projects, the fabrication of cable terminations is a crucial process to ensure the reliability and insulation of cable connections. The fabrication of cable terminations involves multiple steps, including stripping the outer sheath, treating the insulation layer, crimping terminals, and installing accessories.

[0003] In the automated manufacturing process of cable heads, a positioning and clamping process needs to be set up between the wire feeding process and the wire stripping process to correct the cable posture and ensure the coaxiality between the cable and the stripping assembly.

[0004] Existing positioning and clamping mechanisms include multiple clamping arms evenly spaced circumferentially around the cable's axis, and multiple clamping blocks located at the ends of the clamping arms. The length direction of the clamping blocks is aligned with the cable's axial direction. When clamping the cable, the multiple clamping arms synchronously approach the cable's axis radially until the clamping blocks press against the cable's exterior with a preset pressure.

[0005] However, the above-mentioned positioning and clamping mechanism has the following problems when clamping cables: the clamping block is prone to pressing a long indentation on the cable surface that extends along the cable axis, which leads to the formation of an inclined cut at the cut of the insulation when the insulation is circumferentially stripped on the cable surface, as well as the problem of local incomplete cutting or excessive cutting at the cut. Summary of the Invention

[0006] Research has revealed that when the clamping block presses a long indentation along the cable axis onto the cable surface, the cable material at the indentation is compressed and compacted. When the cutting tool enters the cable, the cutting resistance within the indentation groove is much lower than in the non-indentation area. This causes the cutting tool to cut deeper and faster at the indentation area, while cutting shallower and slower at the non-indentation area. Ultimately, this results in slanted cuts and problems such as incomplete or excessive cutting. Based on this, it is necessary to provide a fully automatic cable head manufacturing device to address the problems existing in current cable head manufacturing equipment. This device solves the problem that existing positioning and clamping mechanisms tend to press a long indentation along the cable axis onto the cable surface, leading to slanted cuts and incomplete or excessive cutting during subsequent cable circumferential cutting.

[0007] The above objectives are achieved through the following technical solutions:

[0008] A fully automatic cable head making device includes:

[0009] The frame has an internal annular channel extending in the left-right direction, and the annular channel is coaxial with the cable passing through it.

[0010] Multiple sets of positioning clamping components are spaced apart along the axis of the annular channel. Each set contains no less than three positioning clamping components. The positioning clamping components in each set are circumferentially spaced within the annular channel, and the positioning clamping components can move closer to or further away from the axis of the annular channel along the radial direction of the annular channel.

[0011] When the positioning clamping assembly clamps the cable, the positioning clamping assembly forms at least one clamping point with the cable in the circumferential direction of the cable.

[0012] Preferably, the positioning and clamping assembly includes a central rod, an elastic telescopic rod, and a positioning roller. The central rod is connected to the peripheral wall of the annular channel and can move radially along the annular channel. The fixed end of the elastic telescopic rod is connected to the central rod, and the positioning roller is rotatably mounted on the telescopic end of the elastic telescopic rod.

[0013] Preferably, the circumferential misalignment angle of the multiple positioning clamping components is adjustable, and the circumferential misalignment angle is configured to be positively correlated with the diameter of the cable.

[0014] Preferably, it further includes an arc-shaped plate and a first slider. There are at least three arc-shaped plates, and the multiple arc-shaped plates are distributed at equal intervals around the axis of the annular channel. The arc-shaped plates are coaxial with the annular channel and are slidably disposed in the annular channel. The arc-shaped plates can move radially along the annular channel. There are multiple first sliders, and the multiple first sliders correspond one-to-one with multiple central rods and are connected to the end of the central rod away from the elastic telescopic rod.

[0015] The first slider connected to the central rod of the multiple sets of positioning clamping components arranged at intervals along the axis of the annular channel is slidably connected to the inner side of the arc plate at the corresponding position, and the multiple first sliders slidably connected to the same arc plate are staggered from left to right along the axis of the annular channel.

[0016] A guide assembly is provided between the center rod and the frame. The guide assembly is configured such that when the center rod approaches the axis of the annular channel radially along the annular channel, the circumferential misalignment angle of the center rods corresponding to the multiple first sliders connected to the same arc plate is reduced.

[0017] Preferably, the guiding assembly includes a first guide disk, a second guide disk, and guide posts. The first guide disk is disposed within the annular channel and is coaxial with the annular channel. There are multiple second guide disks, which are spaced apart along the axis of the annular channel and located to the left of the first guide disk. The center rod corresponding to the rightmost set of positioning and clamping components is slidably disposed on the first guide disk along the radial direction of the annular channel. There are multiple guide posts, which correspond one-to-one with and are fixedly connected to the center rods of the positioning and clamping components other than the rightmost one. The guide posts are slidably disposed on the second guide disk. When the second guide disk is configured such that the guide posts are close to the axis of the annular channel along the radial direction of the annular channel, the circumferential misalignment angle of the center rods corresponding to the multiple first sliders connected to the same arc plate is reduced.

[0018] Preferably, the positioning and clamping assembly further includes side rods and auxiliary rollers. There are two side rods, which are respectively located on both sides of the central rod and are arranged at an angle to the central rod. The auxiliary rollers are located at the end of the side rods closest to the cable.

[0019] Preferably, the angle between the side rod and the center rod is adjustable, and the angle between the side rod and the center rod is positively correlated with the diameter of the cable.

[0020] Preferably, the angle between the axis of the auxiliary roller and the axis of the cable is adjustable;

[0021] In the initial state, the axis of the auxiliary roller is perpendicular to the axis of the cable;

[0022] In the clamping state, the axis of the auxiliary roller is parallel to the axis of the cable.

[0023] Preferably, it also includes a stripping component, located inside the frame, for circumferentially stripping the cable after it has been positioned and clamped.

[0024] Preferably, it also includes a terminal crimping assembly, located within the frame, for mounting terminals onto the stripped end of the cable.

[0025] The beneficial effects of this invention are:

[0026] This invention employs multiple sets of positioning and clamping components arranged in a circumferentially staggered manner. Because these components are staggered sequentially from left to right, they create at least three discontinuous spiral indentations at equal intervals along the circumference of the cable surface. Compared to multiple straight indentations at equal intervals, the spiral indentations, due to their discontinuous distribution along the cable's circumference, disperse sudden changes in resistance. This significantly reduces the amplitude of force fluctuations on the cutting tool during subsequent circumferential stripping of the cable's insulation. Furthermore, the spiral indentations, compared to straight indentations, help distribute the clamping force of the positioning and clamping components across the cable's circumference, resulting in a more uniform clamping force and preventing excessive local clamping force that could cause bending or other damage to the cable's internal core. Attached Figure Description

[0027] Figure 1 This is an overall schematic diagram of a fully automatic cable head manufacturing device according to the present invention;

[0028] Figure 2 This is a cross-sectional view of a fully automatic cable head manufacturing device according to the present invention;

[0029] Figure 3 for Figure 2 A magnified schematic diagram of the structure at point B in the middle;

[0030] Figure 4 This is a schematic diagram showing the cooperation between the guide component and the central rod in a fully automatic cable head manufacturing device of the present invention;

[0031] Figure 5 This is a schematic diagram of the guide assembly in a fully automatic cable head manufacturing device of the present invention;

[0032] Figure 6 This is a schematic diagram of the structure of the second guide plate in a fully automatic cable head manufacturing device of the present invention;

[0033] Figure 7 This is a schematic diagram showing the connection position of the central rod and the arc-shaped plate in a fully automatic cable head manufacturing device of the present invention;

[0034] Figure 8 This is a schematic diagram of the positioning and clamping assembly in a fully automatic cable head manufacturing device of the present invention;

[0035] Figure 9 This is a schematic diagram showing the initial position of the positioning and clamping component in a fully automatic cable head manufacturing device of the present invention;

[0036] Figure 10 This is an exploded view of the positioning and clamping assembly in a fully automatic cable head manufacturing device of the present invention;

[0037] Figure 11This is a schematic cross-sectional view of a double-ended cylinder in a fully automatic cable head manufacturing device of the present invention;

[0038] Figure 12 This is a schematic diagram showing the positional distribution of auxiliary rollers in states F1 and F2 in a fully automatic cable head manufacturing device of the present invention.

[0039] in:

[0040] 100. Frame; 110. Circular channel; 120. Positioning rod;

[0041] 200. Positioning and clamping assembly; 210. Center rod; 220. Elastic telescopic rod; 230. Positioning roller; 240. Side rod; 241. Second slider; 242. Double-ended cylinder; 2421. Second spiral groove; 243. Upper sliding rod; 244. Lower sliding rod; 245. Protrusion; 250. Auxiliary roller; 260. First hydraulic cylinder; 270. Second hydraulic cylinder;

[0042] 310. Arc-shaped plate; 320. First slider; 330. Guide assembly; 340. Cylinder; 350. Limiting sleeve; 360. Intermediate plate; 361. Arc-shaped guide groove;

[0043] 331. First guide plate; 332. Second guide plate; 333. Guide post; 334. First spiral groove; 335. Positioning hole; 336. Third guide plate;

[0044] 400. Peeling assembly;

[0045] 500. Terminal crimping assembly;

[0046] 600. Feed assembly;

[0047] 700. Automatic insulating tape wrapping machine;

[0048] 800. Cable. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0050] The component designations used in this document, such as "first" and "second," are merely for distinguishing the described objects and do not have any sequential or technical meaning. The terms "connection" and "linkage" used in this invention, unless otherwise specified, include both direct and indirect connections (linkages). It should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0051] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0052] like Figures 1 to 12 As shown, an automatic cable head manufacturing device includes a frame 100 and a positioning clamping assembly 200. The frame 100 has an annular channel 110 extending in the left-right direction, and the annular channel 110 is coaxial with the cable 800 passing through it. Multiple sets of positioning clamping assemblies 200 are arranged at intervals along the axis of the annular channel 110. Each set contains no less than three positioning clamping assemblies 200 (in this embodiment, the number of positioning clamping assemblies 200 in each set is three). The positioning clamping assemblies 200 in each set are circumferentially evenly spaced within the annular channel 110, and the positioning clamping assemblies 200 can move closer to or away from the axis of the annular channel 110 in the radial direction. When the positioning clamping assembly 200 clamps the cable 800, the positioning clamping assembly 200 forms at least one clamping point with the cable 800 in the circumferential direction.

[0053] In use, the operator inserts the cable 800 into the annular channel 110, causing the cable 800 to move uniformly from left to right within the annular channel 110. Simultaneously, multiple sets of positioning clamping components 200 synchronously approach the axis of the annular channel 110 radially. Since each set contains three positioning clamping components 200, and these three components are circumferentially spaced within the annular channel 110, and each positioning clamping component 200 forms at least one clamping point with the cable 800 circumferentially, when the three positioning clamping components 200 of the same set move radially along the annular channel 110 until they simultaneously abut against the outer circumferential surface of the cable 800, a three-point centered clamping of the cable 800 is achieved. Furthermore, since multiple sets of positioning clamping components 200 are spaced apart along the axis of the annular channel 110, and these multiple sets of positioning clamping components 200 move circumferentially from left to right... As the clamping points of the multiple sets of positioning clamping components 200 on the cable 800 are staggered from left to right along the axis of the cable 800, the clamping points of the multiple positioning clamping components 200 on the cable 800 form three discontinuous spiral indentations at equal intervals on the outer circumference of the cable 800. Compared with the straight indentations formed on the surface of the cable 800 when clamping the cable 800 in the prior art, the spiral indentations are distributed discontinuously along the circumference of the cable 800, thus dispersing the sudden change in resistance. When the insulation of the cable 800 is subsequently circumcised, the amplitude of the force fluctuation of the circumcision tool will be significantly reduced. In addition, compared with the straight indentations, the spiral indentations are more conducive to dispersing the clamping force of the positioning clamping components 200 on the cable 800 to the circumference of the cable 800, making the clamping force more uniform and avoiding excessive local clamping force of the positioning clamping components 200 on the cable 800, which could cause bending or other damage to the internal core of the cable 800.

[0054] In a further embodiment, such as Figure 2 As shown, the stripping assembly 400 includes a rotatable annular cutter and an axial feed module. The cutting depth can be adjusted by a precision lead screw to accommodate cable sheaths of different thicknesses. When the cutter rotates, it feeds along the axis of the cable 800 to complete the annular cutting and axial stripping of the sheath. The stripping length is precisely controlled by the control system.

[0055] In a further embodiment, the fully automatic cable head manufacturing device also includes a terminal crimping assembly 500, housed within the frame 100. The terminal crimping assembly 500 includes a crimping mold and a crimping actuator. The crimping mold is replaceable to accommodate cable terminals of different specifications. The crimping actuator is hydraulically or servo-driven to ensure stable and high-precision crimping force. The crimping position is precisely controlled by a displacement sensor. It has a clamping part, which can use a hydraulic cylinder to drive the first and second clamping blocks to close, pressing the terminal placed therein to ensure a tight connection with the cable 800. In some preferred embodiments, the clamping part of the terminal crimping assembly 500 can also be used to peel off a portion of the cut cable 800, achieving functional integration.

[0056] In other embodiments, the number of each group of positioning clamping components 200 may be increased to more than three or each positioning clamping component 200 may form at least two clamping points with the cable 800 to increase the density of the clamping points and increase the clamping stability of the positioning clamping components 200 on the cable 800.

[0057] In a further embodiment, such as Figures 2-9 As shown, the positioning clamping assembly 200 includes a central rod 210, an elastic telescopic rod 220, and a positioning roller 230. The central rod 210 is connected to the peripheral wall of the annular channel 110 and can move radially along the annular channel 110. The fixed end of the elastic telescopic rod 220 is connected to the central rod 210. The positioning roller 230 is a rubber wheel to prevent the positioning roller 230 from damaging the cable 800. The positioning roller 230 is rotatably mounted on the telescopic end of the elastic telescopic rod 220, and the axis of the positioning roller 230 is perpendicular to the axis of the cable 800.

[0058] When clamping the cable 800, the operator makes multiple center rods 210 located around the circumference of the cable 800 simultaneously approach the axis of the annular channel 110. After the positioning roller 230 contacts the cable 800, as the center rods 210 continue to approach the axis of the annular channel 110, the elastic telescopic rod 220 is gradually compressed, and the positive pressure between the positioning roller 230 and the cable 800 gradually increases, so that the positioning roller 230 abuts against the cable 800, so that the cable 800 in the annular channel 110 remains coaxial with the annular channel 110.

[0059] It is understandable that for cables 800 of different diameters, their circumferences are different. If the circumferential misalignment angle of the multiple sets of positioning clamping components 200 distributed outside the small-diameter cable 800 is too large, the multiple discontinuous spiral indentations will overlap, potentially causing the multiple positioning rollers 230 to interfere with each other. Conversely, if the circumferential misalignment angle of the multiple sets of positioning clamping components 200 distributed outside the large-diameter cable 800 is too small, the circumferential dispersion of the clamping force will be limited. To solve this problem, in a further embodiment, such as... Figures 7-8 As shown, the circumferential misalignment angle of the multiple positioning clamping components 200 is adjustable, and the circumferential misalignment angle is configured to be positively correlated with the diameter of the cable 800.

[0060] When the diameter of the cable 800 is small, the circumferential misalignment angle of the multiple sets of positioning clamping components 200 is reduced to avoid overlapping of the intermittent spiral indentations formed by the multiple sets of positioning clamping components 200 on the surface of the cable 800. When the diameter of the cable 800 to be clamped is large, the circumferential misalignment angle of the multiple sets of positioning clamping components 200 is increased to increase the helix angle of the intermittent spiral indentations formed by the multiple sets of positioning clamping components 200 on the surface of the cable 800, so that the clamping force of the positioning clamping components 200 on the cable 800 can be fully distributed on the circumference of the cable 800.

[0061] In a further embodiment, such as Figures 3-7 As shown, the fully automatic cable head manufacturing device also includes an arc plate 310 and a first slider 320. There are at least three arc plates 310 (this embodiment uses three as an example, corresponding to three positioning clamping components 200 in each group). The multiple arc plates 310 are evenly distributed around the axis of the annular channel 110. The arc plates 310 are coaxial with the annular channel 110 and slide within the annular channel 110. The arc plates 310 can move radially along the annular channel 110. There are multiple first sliders 320, each corresponding to a central rod 210, and connected to the end of the central rod 210 away from the elastic telescopic rod 220. The first sliders 320 connected to the central rods 210 of the multiple sets of positioning and clamping assemblies 200 arranged at axial intervals along the annular channel 110 are slidably connected to the inner side surface of the arc plate 310 at the corresponding positions. The multiple first sliders 320 slidably connected to the same arc plate 310 are sequentially offset from left to right along the axis of the annular channel 110. A guide assembly 330 is provided between the central rod 210 and the frame 100. When the guide assembly 330 is configured such that the central rod 210 is close to the axis of the annular channel 110 along the radial direction of the annular channel 110, the circumferential offset angle of the central rods 210 corresponding to the multiple first sliders 320 connected to the same arc plate 310 is reduced.

[0062] Before the positioning roller 230 contacts the cable 800, the circumferential misalignment angle of the center rods 210 corresponding to the multiple first sliders 320 connected to the same arc plate 310 is at its maximum. When clamping the cable 800, the operator moves the arc plate 310 radially toward the axis of the annular channel 110. At the same time, under the guidance of the guide assembly 330, the circumferential misalignment angle of the center rods 210 corresponding to the multiple first sliders 320 connected to the same arc plate 310 gradually decreases. Since the positioning roller 230 is connected to the center rod 210 through the elastic telescopic rod 220, the circumferential misalignment angle of the clamping points of the positioning rollers 230 corresponding to the multiple sets of positioning clamping assemblies 200 gradually decreases. When the diameter of the cable 800 is large, the positioning roller 230 can be pressed against the cable 800 with a preset clamping force by a relatively short movement of the arc plate 310. On the cable 800, the circumferential misalignment angle of the center rods 210 corresponding to the multiple first sliders 320 connected to the same arc plate 310 is reduced less, that is, the helix angle of the intermittent spiral indentations formed by the multiple sets of positioning clamping components 200 on the surface of the cable 800 is larger. Therefore, the clamping force of the positioning clamping components 200 on the cable 800 can be fully distributed on the circumference of the cable 800. When the diameter of the cable 800 is large, the arc plate 310 needs to move a longer distance to make the positioning rollers 230 press on the cable 800 with a preset clamping force. At this time, the circumferential misalignment angle of the center rods 210 corresponding to the multiple positioning rollers 230 connected to the arc plate 310 is reduced more, that is, the helix angle of the intermittent spiral indentations formed by the multiple sets of positioning clamping components 200 on the surface of the cable 800 is smaller, thereby preventing the multiple intermittent spiral indentations on the surface of the cable 800 from overlapping.

[0063] Furthermore, in order to enable the first slider 320 to slide on the inner side of the arc plate 310 at the corresponding position, multiple arc grooves are provided on the inner side of the arc plate 310. The multiple arc grooves are arranged at intervals along the axial direction of the arc plate 310, and each arc groove extends along the curved surface of the arc plate 310. The first slider 320 is arc-shaped, and multiple first sliders 320 are slidably connected in the corresponding arc grooves.

[0064] Furthermore, to enable the arc-shaped plate 310 to move radially along the annular channel 110, at least three cylinders 340 are circumferentially spaced at equal intervals on the inner circumferential wall of the annular channel 110. The number of cylinders 340 is the same as the number of arc-shaped plates 310. The axis of the cylinders 340 is perpendicular to the axis of the annular channel 110, and the center position of the outer side of the arc-shaped plate 310 is located on the extension end of the cylinder 340. When it is necessary for the arc-shaped plate 310 to move radially along the annular channel 110, activating the cylinders 340 will drive the arc-shaped plate 310 to move radially along the annular channel 110.

[0065] Furthermore, in order to limit the degree of freedom of the arc plate 310 and prevent the arc plate 310 from rotating around the axis of the cylinder 340, a limiting sleeve 350 is provided between the arc plate 310 and the annular channel 110, and the axis of the limiting sleeve 350 is perpendicular to the axis of the annular channel 110.

[0066] In a further embodiment, such as Figures 4-7 As shown, the guide assembly 330 includes a first guide disk 331, a second guide disk 332, and guide posts 333. The first guide disk 331 is disposed within the annular channel 110 and is coaxial with the annular channel 110. Multiple second guide disks 332 are spaced apart along the axis of the annular channel 110, with the second guide disks 332 located to the left of the first guide disk 331. The rightmost set of positioning and clamping assemblies 200... The corresponding center rod 210 is slidably mounted on the first guide plate 331 along the radial direction of the annular channel 110. There are multiple guide posts 333. Each guide post 333 corresponds to and is fixedly connected to the center rod 210 of the non-rightmost positioning clamping assembly 200. The guide posts 333 are slidably mounted on the second guide plate 332. When the second guide plate 332 is configured such that the guide posts 333 are close to the axis of the annular channel 110, the circumferential misalignment angle of the center rods 210 corresponding to the multiple guide posts 333 is reduced.

[0067] Before the positioning roller 230 contacts the cable 800, the maximum value of the circumferential misalignment angle of the center rods 210 corresponding to the multiple first sliders 320 connected to the same arc plate 310, when clamping the cable 800, causes the three arc plates 310 to move synchronously along the radial direction of the annular channel 110 towards the position of the axis of the annular channel 110. Since the guide post 333 on the center rod 210 corresponding to the non-rightmost positioning clamping assembly 200 is slidably connected to the second guide disk 332, and the second guide disk 332 is configured such that the guide post 333 is close to the annular channel 110. When the axis is aligned, the circumferential misalignment angle of the central rod 210 corresponding to the multiple guide posts 333 decreases. Therefore, when the multiple central rods 210 synchronously approach the axis of the annular channel 110, under the guidance of the second guide plate 332, the circumferential misalignment angle of the central rod 210 corresponding to the multiple guide posts 333 decreases. Since the positioning roller 230 is connected to the central rod 210 through the elastic telescopic rod 220, the circumferential misalignment angle of the positioning roller 230 corresponding to the multiple central rods 210 decreases, that is, the helix angle of the intermittent spiral indentation formed on the surface of the cable 800 decreases.

[0068] Specifically, in order to reduce the circumferential misalignment angle of the center rods 210 corresponding to the multiple guide posts 333 when the second guide disk 332 is configured such that the guide posts 333 are close to the axis of the annular channel 110, a first spiral groove 334 is provided on the side of the second guide disk 332, and the spiral slope of the first spiral groove 334 provided on the side of each second guide disk 332 arranged at intervals from right to left increases. The guide posts 333 corresponding to the multiple center rods 210 arranged at intervals along the axis of the cable 800 are slidably connected in the corresponding first spiral groove 334.

[0069] When the three arc-shaped plates 310 move synchronously along the radial direction of the annular channel 110 towards the axis of the annular channel 110, the center rod 210 corresponding to the rightmost positioning clamping assembly 200 is restricted by the first guide disk 331 to move only along the radial direction of the first guide disk 331. Since the guide posts 333 on the center rods 210 corresponding to the multiple positioning clamping assemblies 200 that are not on the rightmost side are slidably connected in the first spiral groove 334 of the corresponding second guide disk 332, and the slope of the first spiral groove 334 opened on the side of the multiple second guide disks 332 arranged from right to left increases, as the multiple center rods 210 move towards the axis of the annular channel 110, under the spiral guidance of the guide posts 333 and the corresponding first spiral grooves 334, the circumferential misalignment angle of the center rods 210 corresponding to the multiple guide posts 333 gradually decreases.

[0070] Furthermore, to prevent the guide post 333 connected in the first spiral groove 334 of the leftmost second guide disk 332 from coming out of the first spiral groove 334, a third guide disk 336 is provided on the left side of the leftmost second guide disk 332, and the circumferential distance between the third guide disk 336 and the second guide disk 332 is the same as the circumferential distance between the two second guide disks 332.

[0071] Furthermore, in order to fix the first guide plate 331 and the multiple second guide plates 332, multiple positioning holes 335 are provided circumferentially at equal intervals on the end faces of the first guide plate 331 and the second guide plates 332. Multiple positioning rods 120 are provided at intervals around the axis of the annular channel 110, and the positioning rods 120 are fixedly connected in the positioning holes 335.

[0072] In a further embodiment, such as Figures 8-11 As shown, the positioning and clamping assembly 200 also includes a side rod 240 and an auxiliary roller 250. There are two side rods 240, which are respectively located on both sides of the central rod 210, and the side rods 240 and the central rod 210 are arranged at an angle. The auxiliary roller 250 is located at the end of the side rod 240 near the cable 800.

[0073] This configuration ensures that when the positioning clamping assembly 200 centers and clamps the cable 800, both the positioning roller 230 and the auxiliary roller 250 are in contact with the outer circumferential surface of the cable 800, thereby increasing the number of centering clamping points in the circumferential direction of the cable 800 and increasing the clamping stability of the positioning clamping assembly 200 on the cable 800.

[0074] Furthermore, such as Figure 8 and Figure 9 As shown, in order to facilitate the connection of the side rod 240 to the center rod 210, and the side rod 240 and the center rod 210 are configured at an angle, a middle plate 360 ​​is provided at the end of the center rod 210 connected to the elastic telescopic rod 220. The middle plate 360 ​​is arc-shaped, and the two side rods 240 are respectively connected to the two ends of the middle plate 360.

[0075] Furthermore, to ensure that the auxiliary roller 250 can also be elastically pressed against the outside of the cable 800, such as... Figure 8 and Figure 9 As shown, in order to make the side rod 240 elastically extendable, the side rod 240 includes a second slider 241, a double-headed cylinder 242, an upper sliding rod 243 and a lower sliding rod 244. The second slider 241 is connected to the middle plate 360, the upper sliding rod 243 is fixedly connected to the second slider 241, one end of the double-headed cylinder 242 is coaxially elastically connected to the upper sliding rod 243, and the other end of the double-headed cylinder 242 is coaxially elastically connected to the lower sliding rod 244. The auxiliary roller 250 is rotatably mounted on the lower sliding rod 244.

[0076] Understandably, the insulation sheath of a cable is typically covered with an armor layer formed by spirally winding aluminum tape. To ensure sealing, a certain width of overlap is formed between adjacent turns of aluminum tape. Because the aluminum tape in the overlap area is relatively thick, the circumferential cutter cannot cut through the overlap area in one go during the circumferential cutting process. Furthermore, since the circumferential cutter rotates around the axis of the annular channel 110 and feeds radially inward along the annular channel 110, as the circumferential cutter gradually feeds inward along the radial direction of the annular channel 110, the circumferential cutter will apply pressure to the cable 80 through the aluminum tape. The innermost battery cell is under a certain pressure, and the cable 800 is centered by multiple positioning rollers 230 and auxiliary rollers 250. Therefore, under the pressure of the ring cutter, the pressure between the cable 800 and the positioning rollers 230 or auxiliary rollers 250 facing the force direction of the ring cutter will increase significantly, easily causing local deformation of the battery cell surface. Especially for cables with smaller diameters, since the aluminum strip of its armor layer is thinner than that of cables with larger diameters, the degree of deformation caused by pressure on the battery cell will be more significant. To solve this problem, in a further embodiment, such as Figures 8-12As shown, the angle between the side rod 240 and the center rod 210 is adjustable, and the angle between the side rod 240 and the center rod 210 is positively correlated with the diameter of the cable 800.

[0077] Furthermore, to make the included angle between the side rod 240 and the center rod 210 adjustable, an arc-shaped guide groove 361 is provided on the inner arc surface of the intermediate plate 360. The second slider 241 is slidably connected in the arc-shaped guide groove 361. A second hydraulic cylinder 270 is hinged between the fixed end of the double-headed cylinder 242 and the fixed end of the elastic telescopic rod 220. A first hydraulic cylinder 260 is provided between the fixed end of the second hydraulic cylinder 270 and the fixed end of the elastic telescopic rod 220. The first hydraulic cylinder 260 is arc-shaped, and the cylinder cavity of the first hydraulic cylinder 260 is connected to the cylinder cavity of the second hydraulic cylinder 270. In the initial state, the distance between the auxiliary roller 250 and the axis of the annular channel 110 is less than the distance between the positioning roller 230 and the axis of the annular channel 110.

[0078] By making the included angle between the side rod 240 and the center rod 210 adjustable, the distance between the two auxiliary rollers 250 and the positioning roller 230 mounted on the same intermediate plate 360 ​​can be adaptively changed to reduce the force from the ring cutter on each positioning roller 230 and the auxiliary roller 250, thereby preventing the battery cell from being excessively deformed due to the excessive force between it and a certain positioning roller 230 or auxiliary roller 250.

[0079] For details on its working principle, please refer to [link / reference]. Figure 12 When circumferentially cutting a cable 800 with a smaller diameter and applying a radial force F1 to the overlapping area of ​​the aluminum strip, reducing the angle between the side rod 240 and the center rod 210 reduces the circumferential distance between the two auxiliary rollers 250 and the corresponding positioning rollers 230. This allows more positioning rollers 230 and auxiliary rollers 250 to share the pressure on the semicircular side opposite to the direction of F1, preventing excessive pressure increase between the positioning rollers 230 and auxiliary rollers 250 and the cable 800 on the corresponding side, thus preventing excessive deformation of the battery cell. When the radial force applied by the circumferential cutter to the overlapping area of ​​the aluminum strip is F2 (F2 is opposite to F1), reducing the circumferential distance between the two auxiliary rollers 250 and the corresponding positioning rollers 230 allows the two positioning rollers 230 on the side opposite to the direction of F1 to bear more of the force, thus preventing excessive pressure between the positioning rollers 230 on the corresponding side and the cable 800, which could damage the battery cell inside the cable 800.

[0080] When the radial direction of the annular channel 110 of the positioning clamping assembly 200 approaches the axis of the annular channel 110, the auxiliary roller 250 first contacts the outside of the cable 800. As the positioning clamping assembly 200 continues to approach the axis of the annular channel 110, the upper sliding rod 243 is shortened by force. At this time, the length of the second hydraulic cylinder 270 is shortened, and the hydraulic oil in the cylinder cavity of the second hydraulic cylinder 270 is squeezed into the first hydraulic cylinder 260, causing the piston of the first hydraulic cylinder 260 to extend outward. At the same time, since the second slider 241 is slidably connected in the arc-shaped guide groove 361, and since the cylinder wall of the first hydraulic cylinder 260 is arc-shaped, the second slider 241 moves towards the middle position along the arc-shaped guide groove 361. Meanwhile, the piston rod of the first hydraulic cylinder 260 drives the cylinder end of the second hydraulic cylinder 270 to rotate towards the position close to the elastic telescopic rod 220, so that the included angle between the side rod 240 and the elastic telescopic rod 220 is reduced, that is, the circumferential distance between the positioning roller 230 and the auxiliary roller 250 is reduced.

[0081] In a further embodiment, the angle between the axis of the auxiliary roller 250 and the cable axis is adjustable. Specifically, a protrusion 245 is provided on the lower sliding rod 244. The protrusion 245 is hemispherical. A second spiral groove 2421 is provided on the inner peripheral wall of the double-headed cylinder 242. The protrusion 245 is slidably connected in the second spiral groove 2421. In the initial state, the axis of the auxiliary roller 250 and the cable axis are perpendicular to each other. In the clamping state, the axis of the auxiliary roller 250 and the cable axis are parallel to each other.

[0082] In the initial state, such as Figure 9 As shown, the axis of the auxiliary roller 250 is parallel to the axis of the cable 800. When the clamping force between the auxiliary roller 250 and the cable 800 increases to a level greater than the spring force between the lower sliding rod 244 and the double-ended cylinder 242, the lower sliding rod 244 gradually drives the auxiliary roller 250 to rotate under the guidance of the protrusion 245 and the second spiral groove 2421. After clamping, the auxiliary roller 250 rotates until its axis is perpendicular to the axis of the cable 800, thus avoiding excessive frictional resistance between the auxiliary roller 250 and the cable 800 during cable transportation and maintaining cable transportation.

[0083] It should be noted that the spring stiffness coefficient between the lower sliding rod 244 and the double-ended cylinder 242 is greater than that between the upper sliding rod 243 and the double-ended cylinder 242.

[0084] In a further embodiment, such as Figure 2 As shown, the feed assembly 600 includes a plurality of feed drive wheels axially and equally spaced around the annular channel 110. The feed drive wheels are mounted on the annular channel 110 via a rotating arm, which can rotate to accommodate cables 800 of different diameters.

[0085] In a further embodiment, the fully automated cable head manufacturing device also includes an insulation layer processing mechanism, comprising an insulation layer grinding component, a cleaning component, and an automatic insulating tape wrapping machine 700. The grinding component uses a fine grinding wheel or polishing wheel to finely process the surface of the insulation layer and remove burrs. The cleaning component uses a brush and a dust suction device to remove debris generated during the processing. After the terminal crimping is completed, the automatic insulating tape wrapping machine 700 automatically and evenly wraps insulating tape around the terminal. It mainly includes a rotating ring, a drive device (such as a motor and gear set) that drives the rotating ring to rotate, a reciprocating screw fixed on the rotating ring, and a mating sleeve sleeved on the reciprocating screw. The insulating tape is installed on the mating sleeve. When the rotating ring rotates, it drives the reciprocating screw to rotate around the terminal axis. Under the action of the reciprocating screw and the damping device (such as a rubber sleeve), the mating sleeve rotates and reciprocates along the axial direction, thereby evenly and tightly wrapping the insulating tape around the terminal.

[0086] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0087] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A fully automatic cable head manufacturing device, characterized in that, include: The frame has an internal annular channel extending in the left-right direction, and the annular channel is coaxial with the cable passing through it. Multiple sets of positioning clamping components are spaced apart along the axis of the annular channel. Each set contains no less than three positioning clamping components. The positioning clamping components in each set are circumferentially spaced within the annular channel, and the positioning clamping components can move closer to or further away from the axis of the annular channel along the radial direction of the annular channel. When the positioning clamping assembly clamps the cable, the positioning clamping assembly forms at least one clamping point with the cable in the circumferential direction of the cable; The fully automatic cable head making device also includes an arc plate and a first slider. There are at least three arc plates, and the multiple arc plates are distributed at equal intervals around the axis of the annular channel. The arc plates are coaxial with the annular channel and slide within the annular channel. The arc plates can move radially along the annular channel. There are multiple first sliders, and the multiple first sliders correspond one-to-one with multiple central rods and are connected to the end of the central rod away from the elastic telescopic rod. The first slider connected to the central rod of the multiple sets of positioning clamping components arranged at intervals along the axis of the annular channel is slidably connected to the inner side of the arc plate at the corresponding position, and the multiple first sliders slidably connected to the same arc plate are staggered from left to right along the axis of the annular channel. A guide assembly is provided between the center rod and the frame. The guide assembly is configured such that when the center rod approaches the axis of the annular channel radially along the annular channel, the circumferential misalignment angle of the center rods corresponding to the multiple first sliders connected to the same arc plate is reduced.

2. The fully automatic cable head making device according to claim 1, characterized in that, The positioning and clamping assembly includes a central rod, an elastic telescopic rod, and a positioning roller. The central rod is connected to the peripheral wall of the annular channel and can move radially along the annular channel. The fixed end of the elastic telescopic rod is connected to the central rod, and the positioning roller is rotatably mounted on the telescopic end of the elastic telescopic rod.

3. The fully automatic cable head making device according to claim 2, characterized in that, The circumferential misalignment angle of multiple positioning clamping components is adjustable, and the circumferential misalignment angle is configured to be positively correlated with the diameter of the cable.

4. The fully automatic cable head making device according to claim 1, characterized in that, The guiding assembly includes a first guide disk, a second guide disk, and guide posts. The first guide disk is located within an annular channel and is coaxial with the annular channel. There are multiple second guide disks, which are spaced apart along the axis of the annular channel and located to the left of the first guide disk. The center rod corresponding to the rightmost set of positioning and clamping components is slidably mounted on the first guide disk along the radial direction of the annular channel. There are multiple guide posts, which correspond one-to-one with and are fixedly connected to the center rods of the positioning and clamping components other than the rightmost one. The guide posts are slidably mounted on the second guide disk. When the second guide disk is configured such that the guide posts are close to the axis of the annular channel along the radial direction of the annular channel, the circumferential misalignment angle of the center rods corresponding to the multiple first sliders connected to the same arc plate is reduced.

5. The fully automatic cable head making device according to claim 4, characterized in that, The positioning and clamping assembly also includes side rods and auxiliary rollers. There are two side rods, which are respectively located on both sides of the central rod and are arranged at an angle to the central rod. The auxiliary rollers are located at the end of the side rods closest to the cable.

6. The fully automatic cable head making device according to claim 5, characterized in that, The angle between the side rod and the center rod is adjustable, and the angle between the side rod and the center rod is positively correlated with the diameter of the cable.

7. The fully automatic cable head making device according to claim 5, characterized in that, The angle between the axis of the auxiliary roller and the axis of the cable is adjustable; In the initial state, the axis of the auxiliary roller is perpendicular to the axis of the cable; In the clamping state, the axis of the auxiliary roller is parallel to the axis of the cable.

8. The fully automatic cable head making device according to claim 1, characterized in that, It also includes a stripping assembly, located inside the frame, for circumferentially stripping the cable after it has been positioned and clamped.

9. The fully automatic cable head making device according to claim 8, characterized in that, It also includes a terminal crimping assembly, located within the frame, for mounting terminals onto the stripped ends of cables.

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