Wire stripping device, base module, blade box, calibration station, installation auxiliary device and system

Abstract

The invention discloses a wire stripping device which comprises a base module and a blade box. The blade box comprises a blade holder and a cutting blade used for cutting the insulating layer. The blade carrier and the first drive shaft of the base module comprise connection means for removably connecting the blade carrier to the first drive shaft. The cutting blade or the second driving shaft of the base module is provided with a guide groove used for being meshed with a first guide element arranged at the other end of the cutting blade and the second driving shaft. The cutting blade is pivotable towards or away from the axis of rotation by rotation of the second drive shaft relative to the first drive shaft and the blade carrier and thereby resulting movement of the first guide element along the guide slot relative to the blade carrier. Due to the adoption of the technical scheme, compared with the prior art, the shutdown time of the wire stripping device is shortened, and the productivity is improved.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This application claims priority to European patent application number EP23208854 filed on November 9, 2023, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The invention relates to a wire stripping device for stripping a cable, a base module for a wire stripping device, a blade box for a wire stripping device, a calibration station for the blade box, a system comprising a wire stripping device, a calibration station and a plug gauge, an installation auxiliary device for a wire stripping device and a system comprising a wire stripping device and the installation auxiliary device. Background Art

[0003] The cable ends are stripped and connected to the contact components to produce a cable plug connection. To do this, the insulation at the cable end is cut with a tool such as a blade and the cable core is stripped. In production systems, the stripping is usually done automatically with the aid of suitable stripping devices.

[0004] Typical wire stripping devices usually cut a portion of the cable insulation by two blades moving parallel to each other. In this way, the uncut portion that was torn when stripping the insulation is usually retained, which is acceptable in non-critical applications.

[0005] So-called profiled blades, designed for the desired cutting profile, offer an improvement. These profiled blades provide better cutting results but have a limited range of applications with regard to different cables and cutting depths.

[0006] A good cutting effect and a wider range of applications can be achieved by using a device with rotating blades. In such a device, the blades not only move towards each other, but also rotate around the circumference of the cable, as described in EP4102660A1 or EP3895267A1. Thus, it can be ensured that the cut on the cable is made completely around the circumference.

[0007] The prior art also discloses other stripping devices, such as DE202008017576U1, CN106607953A, CN110829288A, CN111063492A, CN212182984U, US2018 / 0090918A1, US2020 / 0076174A1 and WO2020 / 119916A1.

[0008] A disadvantage of the above-mentioned devices with rotating blades is that when using rotating blades, the additional rotational movement requires a more complex mechanism than a typical stripping device with a blade that only has a translational movement. This makes maintenance or conversion more complicated, for example due to long downtimes, which can have a negative impact on the productivity of the corresponding system. Summary of the invention

[0009] The present invention achieves the purpose of improving productivity by providing a wire stripping device for stripping cables, a base module for the wire stripping device, a blade box for the wire stripping device, a calibration station for the blade box, a system including the wire stripping device, the calibration station and a plug gauge, an installation auxiliary device for the wire stripping device and a system including the wire stripping device and the installation auxiliary device.

[0010] To achieve the above object, the present invention adopts the following technical solution.

[0011] In one aspect, a wire stripping device is provided, comprising: a base module having a housing, a first drive shaft and a second drive shaft, the two drive shafts being coaxially supported on the housing, extending toward each other and rotatable relative to the housing and to each other; and a blade cartridge including a blade holder removably connected to one end of the first drive shaft, and a cutting blade having a cutting edge oriented in the direction of the rotation axis for cutting the insulation layer and connected to the blade holder at a pivot point so as to be rotatable about a pivot axis parallel to the rotation axis; in The blade carrier and the first drive shaft have a connection means for removably connecting the blade carrier to the first drive shaft at a predetermined rotational position relative to the first drive shaft; The cutting blade or the second drive shaft has a guide groove for engaging with the first guide element corresponding to the position of the cutting blade and the second drive shaft, and By rotating the second drive shaft relative to the first drive shaft and the blade carrier and the resulting movement of the first guide element relative to the blade carrier along the guide slot, the cutting blade can be pivoted toward the rotation axis and also pivoted away from the rotation axis.

[0012] In some embodiments, the first drive shaft and the second drive shaft may also be rotatably supported on the housing when the blade cartridge is not connected to the base module, and / or The blade box is supported on the housing only through the first drive shaft and / or the second drive shaft.

[0013] In some embodiments, the first drive shaft and the second drive shaft support each other, and / or The blade bracket has an opening along the rotation axis for passing the cable.

[0014] In some embodiments, the blade holder or the first drive shaft has a mounting hole or a mounting slot for engaging a first drive pin mounted on the first drive shaft corresponding to the position of the blade holder and extending parallel to the rotation axis, and / or A first guide element provided on the cutting blade or the second drive shaft is configured as a first guide pin extending parallel to the rotation axis, and / or The guide channel is configured as a curved or straight slot.

[0015] In some embodiments, the blade box has a plurality of cutting blades; preferably, the cutting blades are two, three, four, six or eight cutting blades, and / or The blade bracket and the first drive shaft are each provided with a plurality of connecting devices.

[0016] In some embodiments, the blade cartridge may be secured to the first drive shaft of the base module via a central securing nut.

[0017] In some embodiments, the blade box further comprises a cover plate, the cover plate has an opening along the rotation axis for the cable to pass through; the cutting blade is located between the blade bracket and the cover plate, and / or The cover plate is fixed on the blade bracket; preferably, the cover plate is fixed on the blade bracket by screws.

[0018] Based on the same inventive concept, the present invention also provides a base module for the above-mentioned stripping device, comprising a housing, a first drive shaft and a second drive shaft, wherein the two drive shafts are coaxially supported on the housing, extend mutually and can rotate relative to the housing and each other, wherein The first drive shaft includes a first connection means for removably connecting the blade holder to one end of the first drive shaft at a predetermined rotational position relative to the first drive shaft, and The second drive shaft is provided with a guide groove or a first guide element for rotating the cutting blade of the blade box.

[0019] Based on the same inventive concept, the present invention also provides a blade box for the above-mentioned stripping device, comprising: a blade bracket detachably connected to one end of the first drive shaft of the base module of the stripping device, and a cutting blade having a cutting edge oriented in the direction of the axis of rotation for cutting the insulation layer and connected to the blade holder at a pivot point so as to be rotatable about a pivot axis parallel to the axis of rotation; in The blade carrier includes a second connection means for removably connecting the blade carrier to the first drive shaft at a predetermined rotational position relative to the first drive shaft; The cutting blade has a guide groove or a first guide element configured to engage with the first guide element or guide groove on the second drive shaft, and By rotating the second drive shaft relative to the first drive shaft and the blade carrier and the resulting movement of the first guide element relative to the blade carrier along the guide slot, the cutting blade can be pivoted toward the rotation axis and also pivoted away from the rotation axis.

[0020] Based on the same inventive concept, the present invention also provides a calibration station for the above-mentioned blade box, comprising: The connecting unit has a first shaft and a second shaft, the two shafts extend coaxially and can rotate relative to each other, wherein The first shaft includes a third connection device for detachably connecting the blade holder to one end of the first shaft at a predetermined rotational position of the first shaft relative to the first shaft, and The second shaft has a guide groove or a second guide element for rotating the cutting blade; and A scale indicating the rotational position of a second axis relative to the first axis.

[0021] Based on the same inventive concept, the present invention also provides a system, comprising the above-mentioned stripping device and a calibration station; and A plug gauge is configured to be inserted into the blade box along the rotating shaft in place of the cable and to contact the cutting edge of the cutting blade.

[0022] Based on the same inventive concept, the present invention also provides an auxiliary installation device for the above-mentioned stripping device, comprising: a center pin configured to be inserted into the opening in the blade cartridge along the axis of rotation and to contact the cutting edge of the cutting blade; and / or A positioning pin is configured to be inserted into the guide groove of the cutting blade and fix the cutting blade in a specific position.

[0023] In some embodiments, a magnet is further included to fix the mounting aid on the blade box.

[0024] In some embodiments, a quick connection mechanism is further included; preferably, the quick connection mechanism is an expansion mandrel or a bayonet buckle, which is used to fix the cover plate and the blade bracket together.

[0025] Based on the same inventive concept, the present invention also provides a system, comprising the above-mentioned stripping device and an auxiliary installation device.

[0026] The blade cassette can be prepared and mounted or removed from the base module or machine as a unit and can therefore be quickly replaced. The preparation of the blade cassette can be carried out with the aid of a calibration station, especially when the base module and / or the machine is already working on another production job with a different blade cassette.

[0027] The blade cartridge can be quickly and easily mounted on or removed from the base module. The base module does not need to be removed for mounting or removal of the blade cartridge. In particular, the blade cartridge can be mounted and removed without removing parts of the base module, such as the first and second drive shafts. The drive shafts and their support on the base module housing can remain unchanged during mounting and removal of the blade cartridge. When the blade cartridge is removed from the base module, the drive shaft preferably retains its support. This allows for quick and easy replacement of the blade cartridge, reducing downtime.

[0028] The first and second drive shafts may be supported on each other. For example, the first drive shaft may be supported directly on the housing of the base module, while the second drive shaft may be supported on the first drive shaft and thus indirectly on the housing. Alternatively, both drive shafts may be supported directly or indirectly on the housing. A through hole may be provided on the second drive shaft along the common rotation axis for passing the cable to be processed. The through hole may be coaxial with a through hole on the blade box, in particular a through hole on the blade holder and a through hole on the cover plate.

[0029] For example, the end of the first output shaft to which the blade carrier is detachably connected may be a plane and / or annular surface perpendicular to the axis of rotation. In particular, it may be an end face of the first output shaft. The end face may be formed on an outwardly extending flange. The drive pin may be mounted on the end face.

[0030] The second output shaft may have a planar end surface, which faces the blade holder and is perpendicular to the rotation axis. The guide pin may be mounted on this surface. The end surfaces of the first and second output shafts may be located in the same plane or in different planes parallel to each other.

[0031] The first and second drive shafts may pass through a portion of the base module housing, in particular through a portion supporting them. The drive means of the drive shafts may be arranged on a first side of this portion of the housing, and the portions of the first and second drive shafts for connecting to the blade box may be arranged on a second side of this portion of the housing opposite to the first side.

[0032] The blade box or blade holder is preferably supported only by the drive shaft, rather than directly supported on the housing of the base module. This design is simple and convenient, and the installation and removal of the blade box is also simple and quick.

[0033] In order to adjust the pivot position of the cutting blade, the first and second drive shafts can be rotated relative to each other. Depending on the direction of relative rotation, the cutting blade is rotated towards the through hole in the blade box, i.e. towards the cutting position, or away from the blade box, i.e. towards the initial position. In order to rotate the blade box without changing the position of the cutting blade, the first and second drive shafts rotate synchronously at the same speed and in the same direction. Relative rotation can also occur during the rotation of the two drive shafts, i.e. one drive shaft rotates at a different speed than the other drive shaft, so that during the cutting process, i.e. during the rotation of the blade box around the cable to be processed, the position of the cutting blade or the cutting depth changes. After the cutting process is completed, the cutting blade can remain in the cutting position when the cable is pulled out of the through hole of the blade box so that the insulation part of the cable core is removed by means of the cutting blade. The cutting blade can then be rotated back to the initial position for a new stripping process.

[0034] The drive pin securely fixes the blade cassette to the base module. The drive pin ensures that the blade cassette is correctly positioned and rotated around the cable to be processed. The drive pin allows the blade cassette to be quickly and easily installed or removed from the end of the first drive shaft. The blade cassette has a disc-shaped blade holder and a disc-shaped cover plate, which makes it compact and easy to handle and store. The cutting blade is located between the blade holder and the cover plate and is therefore protected.

[0035] The configuration of the blade box with cutting blades, i.e. the number and / or position of the cutting blades supported by the blade holder, can vary depending on the cable to be processed. The same blade holder can be equipped with different numbers and / or positions of cutting blades. For fine cutting, it is better to use fewer cutting blades, such as two or three, so that more cutting edges can be engaged. When cutting, especially when subsequently stripping thicker cable sections with strong adhesion, it is better to use a larger number of cutting blades, so that the service life of the cutting blades is extended, and multiple contact points prevent sliding of the cable section to be stripped and excessive stress on the cutting blades during stripping.

[0036] The mounting aid can fix the cutting blade in the initial position by means of its center pin, thereby facilitating assembly and minimizing the complexity of the blade box mechanism, without requiring a return spring. In addition, the cutting blade can also be pre-stretched by means of a return spring or other elastic means, for example, in the direction of the initial position.

[0037] With the help of the calibration station, it can be ensured that the cutting blade reliably reaches and does not exceed the required cutting depth. In particular, with the calibration station, the calibration of the blade cassette can be carried out independently of the base module.

[0038] The present invention has at least the following technical effects or advantages: shortening the downtime of the wire stripping device and improving productivity. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1a , Figure 1b and Figure 1c Perspective views of the stripping device, calibration station and plug gauge, respectively; Figure 2 is a perspective exploded view of the stripping device; Figure 3 A perspective view of the blade box and plug gauge installed on the calibration station; Figure 4 A perspective exploded view of the calibration station, blade box, and plug gauge; Figure 5a and Figure 5b They are front views of blade brackets with three and six cutting blades installed respectively; Figure 6a and Figure 6b They are front views of blade brackets with two and four cutting blades installed respectively; Figure 7 for Figure 1a and Figure 2 A perspective exploded view of a first deformation structure of the mounting auxiliary device of the stripping device; Figure 8 for Figure 1a and Figure 2 A perspective exploded view of a second deformation structure of the mounting auxiliary device of the stripping device; Fig. 9 for Figure 1a and Figure 2 A perspective exploded view of a third deformation structure of the mounting auxiliary device of the stripping device; Fig.10 for Fig. 9 A schematic diagram of a state in which the mounting auxiliary device is mounted on the stripping device; Fig.11a for Fig. 9 and Fig.10 A schematic diagram of a state in which the installation auxiliary device is in a non-expanded state; Fig.11b for Fig. 9 and Fig.10 Schematic diagram of the installation auxiliary device in the expanded state. DETAILED DESCRIPTION

[0040] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0041] An embodiment will be described below with reference to the drawings. In all drawings, the same features are represented by the same reference symbols, but for the sake of clarity, not all reference symbols are used in all drawings.

[0042] Figure 1a , Figure 1b and Figure 1c 1 and 2. Perspective views of the stripping device 1, the calibration station 40 and the plug gauge 42, respectively. Figure 2 : is a perspective exploded view of the stripping device 1. The stripping device 1 includes a base module 10, the base module 10 has a housing 7 and a first drive shaft 8 and a second drive shaft 9 supported on the housing 7, and a blade box 20. The first drive shaft 8 and the second drive shaft 9 extend to each other. More specifically, the second drive shaft 9 extends to the inside of the first drive shaft 8. The first drive shaft 8 and the second drive shaft 9 are respectively configured as hollow shafts. In addition, the second drive shaft 9 can also be configured as a solid shaft, that is, there is no central through hole. The first drive shaft 8 and the second drive shaft 9 extend coaxially. The first drive shaft 8 and the second drive shaft 9 can rotate around a common rotation axis x. The stripping device 1 includes two drive motors 5. The first drive shaft 8 and the second drive shaft 9 can be rotated by one of the two drive motors 5 through a transmission belt 6.

[0043] The first drive shaft 8 and the second drive shaft 9 each have a flat end face at one end. The end faces are perpendicular to the rotation axis x and point in the same direction. On the end face of the first drive shaft 8, a first connecting device extending from the end face of the first drive shaft 8 and parallel to the rotation axis x is provided. There are three threaded holes 13 on the end face of the first drive shaft 8. On the end face of the second drive shaft 9, a first guide element is provided, which extends from the end face of the second drive shaft 9 in a direction parallel to the rotation axis x.

[0044] The blade box 20 includes a blade holder 21 , a cutting blade 23 rotatably connected to the blade holder 21 , and a cover plate 27 . Figure 5a and Figure 5b They are front views of the blade bracket 21, wherein only three of the six cutting blades 23 are Figure 5aThe configuration shown is connected to the blade holder 21. That is, the blade holder 21 can be configured with different numbers and / or positions of cutting blades 23. The blade holder 21 is essentially a disc. The blade holder 21 has a central through hole 21a for passing the cable to be processed. The blade holder 21 has a bearing pin 22 for rotatably supporting the cutting blade 23. The bearing pin 22 extends in a direction parallel to the rotation axis x of the blade holder 21. The blade holder 21 has a groove, and the cutting blade 23 is installed in the groove. The blade holder 21 has a second connecting device. The mounting hole 28 is used to receive the first drive pin 12 so as to mount the blade holder 21 to a specific rotational position on the first drive shaft 8 of the base module 10. The blade holder 21 has a slot 29. The slot 29 is configured in such a way that, when the blade holder 21 is connected to the first drive shaft 8, the first guide pin 11 passes through the slot 29 and can move along the slot 29, so that the blade holder 21 can rotate relative to the second drive shaft 9 of the base module 10 within the range defined by the slot 29, and the first guide pin 11 is mounted on the second drive shaft 9. Preferably, the slot 29 is curved and extends along a circle around the rotation axis x. The blade holder 21 has a threaded hole 34. The blade holder 21 has a through hole 38.

[0045] The cutting blades 23 are essentially of the same design, which is why one of the cutting blades 23 will be described below by way of example. The cutting blade 23 is essentially an elongated plate-like shape. A hole 25 is provided at one end of the cutting blade 23 in the longitudinal direction. The hole 25 is used to receive a bearing pin 22 on the blade holder 21, so that the cutting blade 23 can be rotatably supported on the blade holder 21 about a pivot axis v relative to the blade holder 21 on a plane perpendicular to the rotation axis x. In other words, the hole 25 and the bearing pin 22 define a pivot point, and the cutting blade 23 is rotatably mounted on the blade holder 21 at this pivot point. The cutting blade 23 has a slot 26. The slot 26 is used to receive one of the first guide pins 11. The first guide pin 11 can move along the slot 26. The slot 26 can be straight or curved. When the cutting blade 23 is mounted on the blade holder 21, a portion of the slot 26 on the cutting blade 23 overlaps a portion of the bottom slot 29 on the blade holder 21. In particular, the slot 26 may have a different curvature and / or direction than the slot 29 on the blade holder 21. The cutting blade 23 has a cutting edge 24. When mounted on the blade holder 21, the cutting edge 24 is located on the side of the blade holder 21 facing the through hole 21a, i.e., the side facing the rotation axis x.

[0046] The blade holder 21 can be rigidly fixed to the first drive shaft 8, i.e., in a fixed, predetermined rotational position, by means of the first drive pin 12 and the connecting hole 28. When the blade holder 21 is connected to the first drive shaft 8, the first guide pin 11 on the second drive shaft 9 passes through the slot 29 on the blade holder 21 and is inserted into the slot 26 of the cutting blade 23 mounted on the blade holder 21. When the second drive shaft 9 rotates relative to the first drive shaft 8, the first guide pin 11 moves in the slot 29 relative to the blade holder 21. Due to the above movement, the first guide pin 11 moves in the slot 26 of the cutting blade 23 and causes each cutting blade 23 to rotate around its own pivot axis v. Therefore, by the relative rotation of the second drive shaft 9 relative to the first drive shaft 8, the cutting edge 24 of the cutting blade 23 can move in the direction toward or away from the through hole 21a / rotation axis x, depending on the direction of the relative rotation. During the process of the second drive shaft 9 rotating relative to the first drive shaft 8 in a first direction and turning to the through hole 21a / rotation axis x, the cutting blade 23 is turned to a cutting position, at which the cutting edge 24 of the cutting blade 23 can cut the insulation layer of the cable inserted into the through hole 21a. As the first drive shaft 8 and the second drive shaft 9 rotate around the rotation axis x successively or simultaneously, the cutting blade 24 can evenly cut the cable insulation layer around the cable core. The cut insulation layer can then be removed from the cable, such as stripped, so that the cable moves relative to the stripping device 1 along the rotation axis x. By rotating the second drive shaft 9 relative to the first drive shaft 8 in a second direction opposite to the first direction, the cutting blade 23 can be moved away from the through hole 21a / rotation axis x, or the cable can be turned back to the initial position after the cutting process is completed, so that the processed cable can be removed from the through hole 21a and a new cable can be inserted.

[0047] The number of cutting blades 23 can be selected according to the application, in particular the cables to be processed. Figure 5a and 5b Shown, one to six cutting blades 23 can be installed on the blade bracket 21. Here, the cutting blade 23 preferably adopts a rotationally symmetrical arrangement, namely two or three or six cutting blades 23 are arranged.

[0048] The blade holder 21 may have another design, for example Figure 6a and 6b shown. Figure 6a and 6b One to four cutting blades 23 can be mounted on the blade bracket 21 shown. Similarly, the rotationally symmetrical arrangement of the cutting blades 23 is preferably two or four cutting blades 23. Figure 6a and Figure 6bWhen the blade holder 21 shown in FIG. 1 is used, the number and / or position of the first drive pins 12 and the first guide pins 11 must be adapted to the number and / or position of the mounting holes 28 on the blade holder 21 or the number and / or position of the slots 26 and 29. The number and / or position of the threaded holes 13 must be adapted to the number and / or position of the through holes 38.

[0049] The cover plate 27 is substantially a disk. The cover plate 27 has a central through hole 27a for the cable to pass through. The cover plate 27 has a through hole 39. The cover plate 27 is fixed to the blade bracket 21 by a screw 35. The screw 35 is inserted into the through hole 39 and screwed into the threaded hole 34 of the blade bracket 21. The cutting blade 23 is located between the blade bracket 21 and the cover plate 27. The cover plate 27 has a through hole 37a. The position of the through hole 37a corresponds to the through hole 38 of the blade bracket 21 and the threaded hole 13 of the first drive shaft 8 of the base module 10. The blade box 20 is fixed to the first drive shaft 8 by the screw 37. The screw 37 passes through the through holes 37a and 38 and is screwed into the threaded hole 13.

[0050] Figure 1a The state when the mounting auxiliary device 30 is connected to the blade box 20 is shown. The pin 31 of the mounting auxiliary device 30 is inserted into the through hole 27a of the cover plate 27, the space formed between the cutting edge 24 of the cutting blade 23 and the through hole 21a of the blade bracket 21 along the rotation axis x. The blade box 20 can be removed from the base module 10 by the mounting auxiliary device 30 connected to the blade box 20, while the cutting blade 23 is fixed in its position, such as the initial position, by the pin 31. The mounting auxiliary device 30 can be fixed on the blade box 20, in particular on the cover plate 27, by two magnets 32, for example.

[0051] like Figure 3 As shown, before the blade box 20 is removed from the base module 10 or installed to the base module 10, the blade box 20 can be installed on the calibration station 40 for calibration. Figure 4 The corresponding exploded diagram is shown in Figure 2.

[0052] The calibration station 40 has a first shaft 48 and a second shaft 49, similar to the first drive shaft 8 and the second drive shaft 9 of the base module 10. The second shaft 49 extends into the interior of the first shaft 48. The first shaft 48 is configured as a hollow shaft. The first shaft 48 can be part of the housing of the calibration station 40 or be integral with the housing of the calibration station 40. The first shaft 48 can be integrally formed with the upper housing portion of the calibration station 40, and / or the second shaft 49 can be integrally formed with the lower housing portion of the calibration station 40. The first shaft 48 and the second shaft 49 are coaxially aligned and can rotate relative to each other. Similar to the first drive shaft 8 of the base module 10, the first shaft 48 has a third connecting device, which in this embodiment is two second drive pins 121. Similar to the second drive shaft 9, the second shaft 49 has a second guide element, which in this embodiment is six second guide pins 111. The calibration station 40 includes a scale 41 for displaying the rotational position of the second shaft 49 relative to the first shaft 48.

[0053] like Figure 3 As shown, the plug gauge 42 is inserted into the blade box 20 connected to the calibration station 40. Specifically, the rod-shaped portion 42a of the plug gauge 42 is inserted into the through hole 27a of the cover plate 27, the space formed between the cutting edge 24 of the cutting blade 23 and the through hole 21a of the blade bracket 21, and the rod-shaped portion 42a has a circular cross-section similar to the pin 31 of the installation auxiliary device 30. The diameter of the rod-shaped portion 42a is the same or similar to the diameter of the cable core to be processed. By relatively rotating the first shaft 48 and the second shaft 49, the cutting blade 23 of the blade box 20 connected to the calibration station 40 can be rotated toward the rod-shaped portion 42a along the cutting position direction until the cutting blade 24 contacts the rod-shaped portion 42a. In this state, the rotational position of the second shaft 49 relative to the first shaft 48 can be read from the scale 41 and stored as a calibration value or parameter in the control device of the base module 10 or the upper machine or system. In this way, the blade box 20 can be quickly and conveniently calibrated before being installed on the base module 10.

[0054] Depending on the application and blade profile, one plug gauge 42 may be used, or several plug gauges 42 having rod-shaped portions 42a of different diameters may be used.

[0055] The blade cartridge 20 can be calibrated independently of the base module 10. In particular, the blade cartridge 20 can be calibrated while the base module 10 is in operation with a second blade cartridge that is currently connected. For example, the second blade cartridge can be removed from the base module 10 using the second mounting aid. Subsequently, the blade cartridge 20 that has been calibrated and removed from the calibration station 40 is mounted on the base module 10 using the mounting aid 30. After the determined calibration values ​​have been transmitted to the control unit, production can continue using the blade cartridge 20 while the second blade cartridge is being repaired and / or recalibrated. As a result, downtimes can be reduced.

[0056] In the embodiment shown, the cover plate 27 is fixed to the blade holder 21 by means of screws 35. It is also possible to use two or more screws 35. In addition, other fastening methods can also be used.

[0057] As Figure 2 As an alternative or further solution to the mounting auxiliary device 30 with the pin 31 and the handle shown in the figure, the mounting auxiliary device 30 can be configured as another quick connection mechanism, such as a bayonet (snap), a central bolt, an expansion mandrel or other similar quick connection mechanism, for fixing the cover plate 27 and the blade bracket 21 and the cutting blade 23 placed therebetween. In the case of adopting these modified structures, it is not necessary to use the screws 35 to tighten the cover plate 27 to the blade bracket 21, and the screws 35 can also be omitted in the case of adopting certain modified structures. In the state connected to the base module 10, the cover plate 27 is also fixed to the blade bracket 21 by the screws 37 in the above embodiment.

[0058] like Figure 7 As shown, the installation auxiliary device 30 is configured as a bayonet installation structure. Figure 7 In the illustrated embodiment, the first drive shaft 8 is configured as a bayonet male end, which is cylindrical in shape and has one or more radially extending pins 8a (three in this embodiment). The annular female head receiving member 50 has an equal number of L-shaped slots 51 (i.e., three in this embodiment). In order to detachably mount the female head receiving member 50 on the first drive shaft 8, the pins 8a are aligned with the openings of the L-shaped slots 51, respectively, and the female head receiving member 50 is pushed toward the first drive shaft 8, and then the female head receiving member 50 is fixed on the first drive shaft 8 by rotating it clockwise. Figure 7 The mounting aid 30 shown in FIG. 1 and FIG. Figure 2 The mounting aid 30 shown is used in combination. The screws 37 can be omitted.

[0059] like Figure 8 As shown, the mounting aid 30 is configured as a central fixing nut 52. Figure 8 In the illustrated embodiment, the first drive shaft 8 has an external thread on its outer circumferential surface. The central fixing nut 52 has an internal thread on its inner circumferential surface and is mounted on the first drive shaft 8 by screwing the internal thread onto the corresponding external thread. Figure 8 The mounting aid 30 shown in FIG. 1 and FIG. Figure 2 The mounting aid 30 shown is used in combination. The screws 37 can be omitted.

[0060] like Fig. 9 , 10, 11a and 11b, the mounting aid 30 is configured as an expansion mandrel. In the embodiment shown in these figures, the blade box 20 is screwed to the first drive shaft 8 with a screw 37. The expansion mandrel includes a barrel 53, on which is provided an annular stop (flange) 54 that abuts against the cover plate 27. A rotatable shaft 55 is arranged in the barrel 53 so as to move linearly in the barrel 53. A knob 56 is fixed to one end of the shaft 55 and can be grasped to push / pull so that the shaft 55 moves in the barrel 53 (relatively). A compression spring 57 is close to a collar 58 fixed to the shaft 55 and pushes (biases) the knob 56 in a direction away from the cover plate 27.

[0061] like Fig.11a As shown, the shaft 55 has a flared mouth 55a at the longitudinal end opposite to the knob 56. Fig.11a As shown, when the shaft 55 is pushed toward the cover plate 27, the flared end 55a is spaced apart from the expandable mandrel (expandable radial flange) 59, so that the outer diameter of the expandable mandrel 59 is minimized. Fig.11b In the state shown where the shaft 55 is pushed away from the cover plate 27 (by compressing the spring 57 ), the bell mouth 55 a is disposed within the expandable mandrel 59 such that the expandable mandrel 59 has a maximum outer diameter.

[0062] Thus, in the state where the mounting aid 30 of the present modified structure is attached to the cover plate 27, the shaft 55 and the expandable mandrel 59 are inserted along the rotation axis x into the through hole 27a of the cover plate 27, into the space formed between the cutting edges 24 of the cutting blade 23, and into the through hole 21a of the blade carrier 21. In this state, the compression spring 57 pushes the knob 56 in a direction away from the cover plate 27, so that the bell mouth 55a is arranged in the expandable mandrel 59, thereby expanding the expandable mandrel 59. Therefore, the blade box 20 can be removed from the base module 10 using the mounting aid 30 attached to the blade box 20, while keeping the cutting blade 23 in its position, for example, by keeping the cutting blade 23 in the initial position by the expandable mandrel 59. In order to remove the blade box 20 from the mounting aid 30, the knob 56 is pushed toward the cover plate 27, thereby pushing the bell mouth 55a out of the expandable mandrel 59. In this state, the (now smaller) expandable mandrel 59 can be pulled out of the blade box 20 so that the blade box 20 can be repaired.

[0063] The cover plate 27 is not absolutely necessary and can be omitted. The cutting blade 23 can be directly fixed on the blade holder 21 , and the blade holder 21 can be directly fixed on the base module 10 .

[0064] The blade box 20 does not have to be connected to the base module 10 by means of screws 37. For example, the first drive pin 12 can pass through the hole in the cover plate 27, and the two ends of the first drive pin 12 can be threaded, and nuts are screwed on the threads. The same applies to the second drive pin 121.

[0065] The number of screws 37, through holes 37a, 38 and threaded holes 13 is not limited to three. The number of screws 35, through holes 39 and threaded holes 34 is not limited to one. The number of first drive pins 12 and mounting holes 28 is not limited to two. The same applies to the second drive pin 121.

[0066] In the illustrated embodiment, the mounting aid 30 has a pin 31 for positioning the cutting blade 23 in the initial position. In addition, the mounting aid 30 may also have one or more positioning pins 33 that pass through the cover plate 27 and engage with the slot 26 of the cutting blade 23, particularly at the other end of the slot 26, rather than on the first guide pin 11 in the initial position. In this way, there will be no problem in the use of the cutting blade 23, because the cutting blade 23 will become smaller due to repeated grinding. In addition, the positioning pins 33 of the mounting aid 30 can fix the cutting blade 23 in an ideal position at another non-critical point.

[0067] The magnet 32 ​​is not absolutely necessary for the installation auxiliary device 30 to be fixed to the blade box 20. In addition, other fastening means, such as one or more screws, can also be used. The connection of the installation auxiliary device 30 with the blade box 20 can use the above-mentioned bayonet, central fixing bolt or expansion mandrel.

[0068] The positions of the first drive pin 12 and the mounting hole 28 can be interchanged. For example, the first drive pin 12 can be arranged on the surface of the blade bracket 21 facing the first drive shaft 8 and extend in the direction of the first drive shaft 8 parallel to the rotation axis x, and the mounting hole 28 can be formed on the surface of the first drive shaft 8 facing the blade bracket 21.

[0069] The first drive pin 12 and the mounting hole 28 can be omitted. In this case, the blade box 20 can be fixed on the first output shaft 8 by the screw 37, the through holes 37a, 38 and the threaded hole 13.

[0070] In addition to the first drive pin 12, other fixing means, such as a protrusion, may also be used. The same applies to the first guide pin 11.

[0071] The positions of the first guide pin 11 and the slot 26 can be interchanged. For example, the first guide pin 11 can be arranged on the surface of the cutting blade 23 facing the blade bracket 21 or the second drive shaft 9, and extend in the direction of the second drive shaft 9 parallel to the rotation axis x through the slot 29 on the blade bracket 21, and the slot 26 can be formed on the surface of the second drive shaft 9 facing the blade bracket 21.

[0072] The slot 26 may be configured as a straight or curved guide.

[0073] The positions of the bearing pin 22 and the hole 25 can be interchanged. For example, the bearing pin 22 can be arranged on the surface of the cutting blade 23 facing the blade bracket 21, and the hole 25 can be formed on the surface of the blade bracket 21 facing the cutting blade 23.

[0074] The positions of the first drive shaft 8 and the second drive shaft 9 can be interchanged. The first drive shaft 8 can extend to the inside of the second drive shaft 9. In this case, the positions of the mounting hole 28, the through hole 38, the slotted holes 26, 29, the bearing pin 22 and the hole 25 may need to be adjusted accordingly. For example, the hole 25 can be set in the central area of ​​the cutting blade 23 along the respective longitudinal extension direction, and the bearing pin 22 can be set at the corresponding position. The slotted hole 29 can be located in the radial outer area of ​​the blade bracket 21, and the slotted hole 26 can be arranged at the corresponding position of the cutting blade 23. The mounting hole 28 and the through hole 38 can be located on the radial inner side of the slotted hole 29.

[0075] For example, the mounting hole 28 can be configured as a through hole or a blind hole. If the mounting hole 28 is configured as a through hole on the blade bracket 21, a hole can also be formed on the cover plate 27 at a position corresponding to the mounting hole 28 for receiving the first driving pin 12.

[0076] For example, the blade holder 21 may rotatably support two or more, in particular three, four, six or eight, cutting blades 23 .

[0077] The driving of the first drive shaft 8 and the second drive shaft 9 does not need to be performed by the belt 6, for example, it can be performed by gears. The housing 7 is not necessarily Figure 2 The plate shape shown may also be a different shape so as to be able to properly support the first drive shaft 8 and the second drive shaft 9 .

[0078] As an alternative to an embodiment having two drive motors 5, the first drive shaft 8 and the second drive shaft 9 can be driven by one drive motor, similar to the technology disclosed in WO2020 / 119916A1, wherein one servo motor provides drive for relative rotation of the first drive shaft 8 and the second drive shaft 9.

[0079] It is hereby expressly pointed out that all features disclosed in the description and / or claims, no matter how they are combined in the embodiments and / or claims, are disclosed separately and independently for the purpose of original disclosure and for the purpose of limiting the invention. It is expressly pointed out that all indications of value ranges or groups of objects disclose every possible intermediate value or every possible object between them, both for the purpose of original disclosure and for the purpose of limiting the claimed invention, in particular for determining the limits of the value ranges.

Claims

1. A wire stripping device, comprising: a base module having a housing, a first drive shaft and a second drive shaft, the two drive shafts being coaxially supported on the housing, extending toward each other and rotatable relative to the housing and to each other; and Blade box, including a blade bracket (21) detachably connected to one end of the first drive shaft base module, and a cutting blade (23) having a cutting edge (24) oriented in the direction of the rotation axis (x) for cutting the insulating layer and connected to the blade holder (21) at a pivot point so as to be rotatable about a pivot axis (v) parallel to the rotation axis (x); Features: The blade holder (21) and the first drive shaft (8) have a connecting device for detachably connecting the blade holder (21) to the first drive shaft (8) at a predetermined rotational position relative to the first drive shaft (8); The cutting blade (23) or the second drive shaft (9) has a guide groove (26) for engaging with a first guide element corresponding to the position of the cutting blade (23) and the second drive shaft (9); and By rotating the second drive shaft (9) relative to the first drive shaft (8) and the blade holder (21), and thereby moving the first guide element relative to the blade holder (21) along the guide groove (26), the cutting blade (23) can be pivoted toward the rotation axis (x) or away from the rotation axis (x).

2. The stripping device according to claim 1, characterized in that: The first drive shaft (8) and the second drive shaft (9) are also rotatably supported on the housing (10) when the blade box (20) is not connected to the base module (10), and / or The blade box (20) is supported on the housing (7) only through the first drive shaft (8) and / or the second drive shaft (9).

3. The stripping device according to claim 1 or 2, characterized in that: The first drive shaft (8) and the second drive shaft (9) support each other, and / or The blade bracket (21) has an opening (21a) along the rotation axis (x) for passing the cable.

4. The stripping device according to any one of claims 1 to 3, characterized in that: The blade bracket (21) or the first drive shaft (8) has a mounting hole (28) or a mounting groove for engaging with a first drive pin (12) mounted on the first drive shaft (8) corresponding to the position of the blade bracket (21) and extending parallel to the rotation axis (x), and / or A first guide element arranged on the cutting blade (23) or the second drive shaft (9) is configured as a first guide pin (11) extending parallel to the rotation axis (x), and / or The guide groove (26) is configured as a curved or straight slot.

5. The stripping device according to any one of claims 1 to 4, characterized in that: The blade box (20) has a plurality of cutting blades (23); preferably, the cutting blades (23) are two, three, four, six or eight cutting blades (23), and / or The blade bracket (21) and the first drive shaft (8) are each provided with a plurality of connecting devices.

6. The stripping device according to any one of claims 1 to 5, characterized in that: The blade box (20) can be fixed on the first drive shaft (8) of the base module (10) via a central fixing nut (50).

7. The stripping device according to any one of claims 1 to 6, characterized in that: The blade box (20) further comprises a cover plate (27), wherein the cover plate (27) has an opening (27a) along the rotation axis (x) for the cable to pass through; The cutting blade (23) is located between the blade bracket (21) and the cover plate (27), and / or The cover plate (27) is fixed on the blade bracket (21); Preferably, the cover plate (27) is fixed to the blade bracket (21) by means of screws.

8. A base module, used for the stripping device according to any one of claims 1 to 7, comprising a housing (7), a first drive shaft (8) and a second drive shaft (9), wherein the two drive shafts are coaxially supported on the housing (7), extend mutually and can rotate relative to the housing (7) and relative to each other; characterized in that: The first drive shaft (8) comprises a first connection device for detachably connecting the blade holder (21) to one end of the first drive shaft (8) at a predetermined rotational position relative to the first drive shaft (8), and The second drive shaft (9) is provided with a guide groove (26) or a first guide element for rotating the cutting blade (23) of the blade box (20).

9. A blade box for use in the stripping device according to any one of claims 1 to 7, comprising a blade bracket (21) detachably connected to one end of a first drive shaft (8) of a base module (10) of a stripping device (1), and a cutting blade (23) having a cutting edge (24) facing in the direction of the rotation axis (x), for cutting the insulating layer, and connected to the blade holder (21) at a pivot point so as to be rotatable about a pivot axis (v) parallel to the rotation axis (x); Features: The blade holder (21) comprises a second connection means for detachably connecting the blade holder (21) to the first drive shaft (8) at a predetermined rotational position relative to the first drive shaft (8); The cutting blade (23) has a guide groove (26) or a first guide element, configured to engage with the first guide element or guide groove (26) on the second drive shaft (9), and By rotating the second drive shaft (9) relative to the first drive shaft (8) and the blade holder (21), and thereby moving the first guide element relative to the blade holder (21) along the guide groove (26), the cutting blade (23) can be pivoted toward the rotation axis (x) or away from the rotation axis (x).

10. A calibration station for the blade box according to claim 9, characterized in that: include A connecting unit is provided with a first shaft (48) and a second shaft (49), the two shafts extending coaxially and being rotatable relative to each other, wherein The first shaft (48) includes a third connection means for releasably connecting the blade holder (21) to one end of the first shaft (48) at a predetermined rotational position of the first shaft (48) relative to the first shaft (48), and The second shaft (49) has a guide groove (26) or a second guide element for rotating the cutting blade (23); and A scale (41) is used to indicate the rotational position of the second axis (49) relative to the first axis (48).

11. A system, characterized in that: include The stripping device according to any one of claims 1 to 7; The calibration station of claim 10; and A plug gauge (42) is configured to be inserted into the blade box (20) along the rotation axis (x) instead of the cable and to contact the cutting edge (24) of the cutting blade (23).

12. An auxiliary installation device for use with the stripping device according to any one of claims 1 to 7, characterized in that: include a center pin (31) configured to be inserted into the opening (21a) in the blade box (20) along the rotation axis (x) and to contact the cutting edge (24) of the cutting blade (23); and / or The positioning pin (33) is configured to be inserted into the guide groove (26) of the cutting blade (23) and fix the cutting blade (23) at a specific position.

13. The installation auxiliary device according to claim 12, characterized in that: It also includes a magnet (32) for fixing the mounting auxiliary device (30) on the blade box (20).

14. The mounting auxiliary device according to claim 12 or 13, used in the stripping device according to claim 7, characterized in that: It further comprises a quick connection mechanism; preferably, the quick connection mechanism is an expansion mandrel or a bayonet buckle, which is used to fix the cover plate (27) and the blade bracket (21) together.

15. A system, characterized in that: The invention comprises the stripping device according to any one of claims 1 to 7 and the installation auxiliary device according to any one of claims 12 to 14.

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