Aircraft model training cable cutting jig for communication engineering

Abstract

This invention provides a cable cutting fixture for communication engineering in aircraft training equipment, belonging to the field of cable processing technology. The fixture includes a worktable, a gantry frame, a guide support, a clamping structure, a sheath cutting mechanism, and a cutting assembly. The guide support is positioned opposite the gantry frame and supports and guides the movement of multiple communication cables. A laser measuring device is installed on the guide support for real-time monitoring of the cable movement length. The clamping structure includes a clamping drive and two opposing V-groove clamps for rolling clamping and guiding the cables. The sheath cutting mechanism is located between the guide support and the gantry frame, allowing it to penetrate the cable sheath from all sides and perform rotary cutting after making an incision. The cutting assembly is located on one of the V-groove clamps and can feed along the direction perpendicular to the cable's axial direction. This invention enables simultaneous fixed-length cutting of multiple cables and automatic stripping of the end sheaths, resulting in good processing consistency, no damage to the inner core, and high efficiency.

Description

Technical Field

[0001] This invention relates to the field of communication cable processing technology, and in particular to a cable cutting fixture for communication engineering in aircraft training equipment. Background Technology

[0002] Communication engineering in aircraft training equipment is a crucial component of aviation simulation training systems. The reliability of its communication links and the quality of signal transmission directly impact the realism and effectiveness of flight simulation training. During the assembly and maintenance of the communication system in aircraft training equipment, a large number of communication cables need to be cut to length and have their ends processed to expose a certain length of the inner core at the cable ends, facilitating subsequent crimping, soldering, or connection to other communication modules. With the increasing complexity of flight simulation training systems, the density and quantity of communication cables laid inside the equipment have significantly increased, placing higher demands on the efficiency, precision, and consistency of cable cutting and processing.

[0003] Currently, the cutting and stripping of communication cables to their required lengths largely rely on manual operation: operators first use measuring tools to measure the required length and then cut the cable with cutting tools, followed by stripping the outer sheath of each cable individually using wire strippers. This method has two drawbacks: First, for scenarios requiring the batch cutting of multiple cables of equal length, manual operation makes it difficult to ensure consistent cutting lengths each time, and it is inefficient, failing to meet the needs of large-scale assembly; second, the force and feed depth during manual stripping are difficult to control precisely, easily damaging the conductor or shielding layer of the cable core, resulting in decreased communication performance or even scrap, increasing material waste and rework costs. Summary of the Invention

[0004] The purpose of this invention is to provide a cable cutting fixture for communication engineering of aircraft training equipment, so as to solve the technical problems to be solved in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A cable cutting fixture for communication engineering in aircraft simulation training equipment includes a workbench, a gantry frame, a guide support, a clamping structure, a skin cutting mechanism, and a cutting assembly. The guide support and the gantry frame are both mounted on the upper surface of the workbench and are positioned opposite each other. The guide support supports multiple communication cables to be cut and guides the cables towards the gantry frame. A laser measuring device is mounted on the guide support to monitor the length of the communication cables passing through the guide support in real time. The clamping structure is mounted on the gantry frame to fix the communication cables to be cut and includes a clamping drive component and a... Two opposing V-groove clamping blocks are connected to a clamping drive unit for driving the two V-groove clamping blocks to move towards or away from each other. The cutting component is located on one of the V-groove clamping blocks and can feed relative to the V-groove clamping block in a direction perpendicular to the cable axis to cut the communication cable passing through the two V-groove clamping blocks. The sheath cutting mechanism is located between the guide support and the gantry frame. The communication cable passes through the sheath cutting mechanism, which can penetrate the outer sheath of the communication cable from all sides to cut an opening at the cut point on the surface. The sheath cutting mechanism then performs a rotary cut at the tail end of the opening.

[0007] Based on the above technical solutions, the present invention also provides the following optional technical solutions:

[0008] In one alternative embodiment: the sheath cutting mechanism includes a base module and multiple piercing and rotary cutting components. The base module is mounted on the upper surface of the workbench, and the multiple piercing and rotary cutting components are equally spaced on the base module. Each piercing and rotary cutting component includes a support, a rotary cutting drive unit, a rotary cutting ring, and multiple piercing parts with tips that penetrate the outer sheath of the communication cable. The support is fixed to the base module, the rotary cutting ring is rotatably mounted on the support and has a notch, and the rotary cutting drive unit is mounted on the support, which drives the rotary cutting ring to rotate around its own center. Multiple piercing parts are circumferentially distributed on the outer wall of the rotary cutting ring and are capable of radial movement. The rotary cutting ring is provided with an insertion drive unit, which is connected to the tail of the multiple piercing parts and is used to drive the multiple piercing parts to move radially.

[0009] In one alternative embodiment: each of the piercing portions is provided with a push rod at its tail end; the piercing drive unit includes an arc-shaped rotating plate and a piercing cylinder; the arc-shaped rotating plate is rotatably mounted on the outer wall of the rotary cutting ring and is provided with multiple arc-shaped drive slots; each push rod passes through a corresponding arc-shaped drive slot; the piercing cylinder is fixed to the side wall of the rotary cutting ring by a support, and its telescopic end is provided with a frame push rod; the outer wall of the arc-shaped rotating plate is also provided with an outer extension frame, and the frame push rod passes through the outer extension frame and can slide along its length.

[0010] In one alternative embodiment: a rotary cutting gear ring is further provided on the outer wall of the rotary cutting ring. The rotary cutting drive unit includes a rotary cutting motor and multiple rotary cutting shafts. The multiple rotary cutting shafts are arranged in two symmetrical sets on the support. The rotary cutting motor is located in the middle of the support. Its output end is connected to the multiple rotary cutting shafts through a rotary cutting belt transmission component to drive the multiple rotary cutting shafts to rotate synchronously. Each of the two symmetrical rotary cutting shafts is provided with a rotary cutting gear, and the two rotary cutting gears mesh with the rotary cutting gear ring.

[0011] In one alternative: the skin incision mechanism further includes at least one adjustable cylinder, the base module is slidably engaged with the upper surface of the worktable, one end of the adjustable cylinder is connected to the base module, and the other end is connected to the guide support.

[0012] In one alternative: the V-groove clamping block has multiple V-shaped clamping grooves on its clamping opposite surfaces, both surfaces of the V-shaped clamping grooves have inner grooves, and multiple guide clamping rollers are arranged inside the inner grooves along the axial direction of the communication cable, with the surface of the guide clamping rollers having a rubber layer.

[0013] In one alternative embodiment: the clamping drive component includes left and right rotating lead screws, a clamping motor, and a guide rod. The left and right rotating lead screws and the guide rod are respectively located at both ends of the V-groove clamping blocks and both pass through the two V-groove clamping blocks. The left and right rotating lead screws are helically engaged with the two V-groove clamping blocks, and the guide rod is axially slidingly engaged with the two V-groove clamping blocks. The clamping motor is located at the top of the gantry frame, and its output end is connected to one end of the left and right rotating lead screws.

[0014] In one alternative embodiment: the cutting assembly includes a tool holder, a cutting cylinder, and multiple tool modules. The tool holder is mounted on one of the V-groove clamping blocks, with one end extending to one end face of the V-groove clamping block. It is capable of moving relative to the V-groove clamping block in the same direction as the movement of the V-groove clamping block. The cutting cylinder is located on the top of the V-groove clamping block, and its telescopic end is connected to the tool holder. Multiple tool modules are mounted on the tool holder and correspond one-to-one with multiple V-grooves, with the center of each tool module coinciding with the centerline of the V-groove.

[0015] In one alternative: a cutting rack is provided near the end of the gantry frame, and the tool module includes a cutting shaft and a cutting blade. The cutting shaft is rotatably mounted on the tool holder, and the tool holder is also provided with a drive shaft and a cutting gear that meshes with the cutting rack. Cutting pulleys are provided on the drive shaft and multiple cutting shafts, and the multiple cutting pulleys are connected by a cutting transmission belt.

[0016] In one alternative embodiment: the two V-groove clamping blocks are respectively provided with a lower fixed V-shaped clamping block and an upper fixed V-shaped clamping block unit on the sides away from the tool module. The lower fixed V-shaped clamping block is fixedly connected to the tool module. The upper fixed V-shaped clamping block unit includes an upper fixed V-shaped clamping block and at least one upper guide rod. The upper fixed V-shaped clamping block slides in fit with the surface of the V-shaped clamping groove. Its surface opposite to the lower fixed V-shaped clamping block has a V-shaped fixed clamping groove. One end of the upper guide rod is fixedly connected to the upper fixed V-shaped clamping block and passes through the top of the tool holder body. The top of the upper guide rod is provided with a top plate portion, and the top plate portion is connected to the tool holder body by a downward compression spring.

[0017] By adopting the above technical solution, the present invention has the following beneficial effects:

[0018] This invention uses a laser measuring device installed on the guide support to monitor the moving length of the communication cable in real time. Combined with the automatic feed cutting of the cutting component, it realizes the synchronous fixed-length cutting of multiple communication cables. Compared with manual measurement and cutting methods, it significantly improves the consistency of cutting length and processing efficiency, and ensures the standardization requirements of subsequent engineering assembly.

[0019] In this invention, the sheath cutting mechanism can penetrate the outer sheath of the communication cable from all sides. As the cable moves, it cuts a strip-shaped opening in the sheath and performs a rotary cut at the tail end. When the cutting component cuts at the front end of the strip-shaped opening, the outer sheath at the rear strip-shaped opening can automatically fall off, realizing the automated exposure of the inner core at the end of the cable without the need for an additional stripping process. It also effectively avoids damage to the inner core conductor caused by manual stripping, ensuring the signal transmission quality of the communication cable.

[0020] The clamping structure of this invention uses two V-groove clamping blocks arranged opposite each other, which are driven to move in opposite directions or back to back by a clamping drive component. It can perform rolling clamping and guiding of communication cables of different diameters, taking into account both guiding stability and compatibility with different wire diameters. It has a wide range of applications and is easy to promote and apply in the construction and maintenance of communication engineering for aircraft training equipment. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the cable cutting fixture for communication engineering of aircraft training equipment in one embodiment of the present invention.

[0023] Figure 2This is a schematic diagram of another perspective of the cable cutting fixture for communication engineering of aircraft training equipment in one embodiment of the present invention.

[0024] Figure 3 This is a schematic diagram of the skin incision mechanism in one embodiment of the present invention.

[0025] Figure 4 This is a schematic diagram of one perspective of the piercing and cutting assembly in one embodiment of the present invention.

[0026] Figure 5 This is a schematic diagram of the piercing and cutting assembly from another perspective in one embodiment of the present invention.

[0027] Figure 6 This is a schematic diagram of a rotary-cut ring structure in one embodiment of the present invention.

[0028] Figure 7 This is a schematic diagram of one perspective structure of the cutting component in one embodiment of the present invention.

[0029] Figure 8 This is a schematic diagram of the cutting component from another perspective in one embodiment of the present invention.

[0030] Figure 9 This is a schematic diagram of the tool module structure in one embodiment of the present invention.

[0031] Figure reference numerals: Workbench 100, Gantry frame 200, Cutting rack 210, Guide support 300, V-groove clamp 400, V-groove 410, Inner groove 420, Guide roller 430, Lower fixed V-groove clamp 440, Skin cutting mechanism 500, Base frame module 510, Adjustable cylinder 520, Piercing and veneer assembly 530, Support 531, Veneer ring 532, Veneer gear ring 5321, Piercing part 533, Push rod 5331, Veneer drive unit 534, Veneer motor 5341, Veneer shaft 5342, Veneer gear 5343, Veneer belt drive component 5344, Arc-shaped rotating plate 5 35. Arc-shaped drive channel 536. Outer extension frame 537. Puncture cylinder 538. Frame push rod 5381. Cutting assembly 600. Tool module 610. Cutting shaft 611. Cutting tool blade 612. Cutting pulley 613. Cutting transmission belt 614. Drive shaft 615. Cutting gear 616. Tool holder 620. Cutting cylinder 630. Upper fixed V-shaped clamping block unit 640. Upper fixed V-shaped clamping block 641. Upper guide rod 642. Top plate 643. Lower pressure spring 644. Communication cable 700. Clamping drive component 800. Left and right rotating screw 810. Clamping motor 820. Guide rod 830. Detailed Implementation

[0032] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] The left, right, up, and down positions of the various components shown in the attached diagram are just one arrangement method; the specific positions should be set according to specific needs.

[0034] In one embodiment, such as Figures 1-3 As shown, a cable cutting fixture for communication engineering in aircraft training equipment includes a workbench 100, a gantry frame 200, a guide support 300, a clamping structure, a skin cutting mechanism 500, and a cutting assembly 600. The guide support 300 and the gantry frame 200 are both located on the upper surface of the workbench 100 and are positioned opposite each other. The guide support 300 supports multiple communication cables 700 to be cut and guides the communication cables 700 to move towards the gantry frame 200. A laser measuring device is installed on the guide support 300 to monitor the length of the communication cable 700 passing through the guide support 300 in real time. The clamping structure is installed on the gantry frame 200 to fix the communication cables to be cut, and includes a clamping drive component 800 and... Two opposing V-groove clamping blocks 400 are connected to a clamping drive 800, which drives the two V-groove clamping blocks 400 to move towards or away from each other. The cutting component 600 is disposed on one of the V-groove clamping blocks 400 and can feed relative to the V-groove clamping block 400 in a direction perpendicular to the cable axis to cut the communication cable 700 passing through the two V-groove clamping blocks 400. The sheath cutting mechanism 500 is disposed between the guide support 300 and the gantry frame 200. The communication cable 700 passes through the sheath cutting mechanism 500, which can penetrate the outer sheath of the communication cable 700 from all sides to cut an opening at the cut point on the surface. The sheath cutting mechanism 500 then performs a rotary cut at the tail end of the opening.

[0035] In this embodiment of the invention, the communication cable 700 is supported by the guide support 300 and connected to the conveying device at one end. Under the action of the conveying device, multiple communication cables 700 move synchronously toward the clamping structure. The communication cable 700 passes between the skin cutting mechanism 500 and two V-groove clamps 400. The two V-groove clamps 400 approach each other under the action of the clamping drive 800 and roll to clamp the communication cable 700, thereby guiding the movement of the communication cable 700. The laser measuring device on the guide support 300 monitors the length of the communication cable 700 in real time. The length of the communication cable 700 when it passes through the gantry frame 200 is measured. Before reaching the preset length, the sheath cutting mechanism 500 pierces the outer sheath of the communication cable 700 from all sides. As the communication cable 700 moves, the sheath cutting mechanism 500 can cut several strip-shaped slits in the outer sheath of the communication cable 700 and perform rotary cutting at the tail end of the strip-shaped slits. When the front end of the strip-shaped slits moves to the underside of the cutting component 600, the cutting component 600 feeds in a direction perpendicular to the cable axis to cut at the front end of the strip-shaped slits. The cut front part forms a cable product segment, and the outer sheath at the strip-shaped slits of the rear part can automatically fall off, thus exposing the inner core of the front end of the cable product segment to the outside, which facilitates subsequent communication engineering construction and cable connection operations.

[0036] In one embodiment, such as Figures 1-6As shown, the skin incision mechanism 500 includes a base module 510 and multiple piercing and rotary cutting components 530. The base module 510 is disposed on the upper surface of the workbench 100, and the multiple piercing and rotary cutting components 530 are equally spaced on the base module 510. Each piercing and rotary cutting component 530 includes a support 531, a rotary cutting drive unit 534, a rotary cutting ring 532, and multiple piercing parts 533 with pointed ends that pierce the outer sheath of the communication cable 700. The support 531 is fixed to... On the base module 510, a rotary cutting ring 532 is rotatably mounted on a support 531 with a notch. A rotary cutting drive unit 534 is mounted on the support 531 and drives the rotary cutting ring 532 to rotate around its own center. Multiple piercing portions 533 are circumferentially distributed on the outer wall of the rotary cutting ring 532 and can move radially. The rotary cutting ring 532 is equipped with an insertion drive unit, which is connected to the tail of the multiple piercing portions 533 and is used to drive the multiple piercing portions 533. 33. Radial movement; In this embodiment of the invention, since the rotary cutting ring 532 has a notch, the communication cable 700 can be inserted into the rotary cutting ring 532 through the notch. The insertion drive unit drives multiple piercing parts 533 to move radially, with their tips moving away from or near the center of the rotary cutting ring 532. The tips of the multiple piercing parts 533 pierce the outer sheath of the communication cable 700. During the movement of the communication cable 700, the multiple piercing parts 533 cut multiple strip-shaped slits along the axial direction of the communication cable 700. The rotary cutting drive unit 534 drives the rotary cutting ring 532 to rotate, and multiple piercing parts 533 follow the rotary cutting ring 532 to rotate, thereby circumferentially cutting the outer sheath of the communication cable 700. The tip of the piercing part 533 is a cross-shaped tip and penetrates the outer sheath of the communication cable 700. When the piercing part 533 rotates, it can circumferentially cut the outer sheath of the communication cable 700. When the piercing part 533 moves axially, the tip of the piercing part 533 axially cuts the outer sheath of the communication cable 700.

[0037] In one embodiment, such as Figures 1-6As shown, each of the piercing portions 533 is provided with a push rod 5331 at its tail. The piercing drive unit includes an arc-shaped rotating plate 535 and a piercing cylinder 538. The arc-shaped rotating plate 535 is rotatably mounted on the outer wall of the rotary cutting ring 532 and is provided with multiple arc-shaped drive slots 536. Each push rod 5331 passes through the corresponding arc-shaped drive slot 536. The piercing cylinder 538 is fixed to the side wall of the rotary cutting ring 532 by a support, and its telescopic end is provided with a frame push rod 5381. The outer wall of the arc-shaped rotating plate 535 is also provided with... An outer extension frame 537 is provided, through which a frame push rod 5381 passes and can slide along its length. In this embodiment of the invention, the extension and retraction of the piercing cylinder 538 is acted on the outer extension frame 537 by the frame push rod 5381. The outer extension frame 537 and the arc-shaped rotating plate 535 rotate around the center of the rotary cutting ring 532. The arc-shaped rotating plate 535, through the cooperation of the arc-shaped drive through groove 536 and the push rod 5331, causes multiple piercing parts 533 to move radially to detach from and pierce the outer sheath of the communication cable 700.

[0038] In one embodiment, such as Figures 1-6 As shown, a rotary cutting gear ring 5321 is also provided on the outer wall of the rotary cutting ring 532. The rotary cutting drive unit 534 includes a rotary cutting motor 5341 and multiple rotary cutting shafts 5342. The multiple rotary cutting shafts 5342 are arranged in two symmetrical sets on the support 531. The rotary cutting motor 5341 is located in the middle of the support 531, and its output end is connected to the multiple rotary cutting shafts 5342 through a rotary cutting belt transmission component 5344 to drive the multiple rotary cutting shafts 5342 to rotate synchronously. The two symmetrical rotary cutting shafts 5342 are arranged in two sets. Both of the components are equipped with rotary cutting gears 5343, and the two rotary cutting gears 5343 mesh with the rotary cutting gear ring 5321. In this embodiment of the invention, the rotary cutting motor 5341 drives multiple rotary cutting shafts 5342 to rotate through the rotary cutting belt transmission component 5344. The rotary cutting shafts 5342 drive the rotary cutting gears 5343 to rotate. The rotary cutting gears 5343 mesh with the rotary cutting gear ring 5321 to make the rotary cutting ring 532 rotate. As a result, multiple piercing parts 533 follow the rotary cutting ring 532 to rotate, so as to circumferentially cut the outer sheath of the communication cable 700.

[0039] In one embodiment, such as Figures 1-6 As shown, the skin cutting mechanism 500 also includes at least one adjustable cylinder 520. The base module 510 is slidably engaged with the upper surface of the worktable 100. One end of the adjustable cylinder 520 is connected to the base module 510, and the other end is connected to the guide support 300. In this embodiment of the invention, the adjustable cylinder 520 adjusts the position of the base module 510 and the piercing and rotary cutting component 530 through its own telescopic movement, thereby adjusting the length of the axial cut of the communication cable 700, that is, adjusting the length of the strip cut.

[0040] In one embodiment, such as Figure 1 , Figure 2 , Figure 3 , Figure 7 and Figure 8 As shown, the V-groove clamping block 400 has multiple V-shaped clamping grooves 410 on its clamping opposite surface. Both surfaces of the V-shaped clamping groove 410 have inner grooves 420, and multiple guide clamping rollers 430 are arranged inside the inner grooves 420 along the axial direction of the communication cable 700. The surface of the guide clamping rollers 430 has a rubber layer. In this embodiment of the invention, the multiple V-shaped clamping grooves 410 in the two V-groove clamping blocks 400 correspond one-to-one to achieve a centered clamping design. Its clamping center coincides with the center of the piercing and cutting assembly 530, ensuring that the cable is subjected to uniform force and accurate positioning, and adapting to the clamping of communication cables of different diameters. Due to the rotational setting of the guide clamping rollers 430, the axial movement of the communication cable 700 will not be affected.

[0041] In one embodiment, such as Figure 1 , Figure 2 , Figure 3 , Figure 7 and Figure 8 As shown, the 800 includes a left and right rotating lead screw 810, a clamping motor 820, and a guide rod 830. The left and right rotating lead screw 810 and the guide rod 830 are respectively located at both ends of the V-groove clamping block 400 and both pass through the two V-groove clamping blocks 400. The left and right rotating lead screw 810 is helically engaged with the two V-groove clamping blocks 400, and the guide rod 830 is axially slidingly engaged with the two V-groove clamping blocks 400. The clamping motor 820 is located at the top of the gantry frame 200, and its output end is connected to one end of the left and right rotating lead screw 810. In this embodiment of the invention, the end of the left and right rotating lead screw 810 is rotatably connected to the upper surface of the workbench 100 and the gantry frame 200. The clamping motor 820 drives the left and right rotating lead screw 810 to rotate. The left and right rotating lead screw 810 drives the two V-groove clamping blocks 400 to move in a direction perpendicular to the cable axis through helical engagement with the two V-groove clamping blocks 400, thereby clamping and separating the communication cable 700.

[0042] In one embodiment, such as Figure 1 , Figure 2 , Figure 3 , Figure 7 and Figure 8As shown, the cutting assembly 600 includes a tool holder 620, a cutting cylinder 630, and multiple tool modules 610. The tool holder 620 is mounted on one of the V-groove clamps 400, with one end extending to one end face of the V-groove clamp 400. It can move in the same direction as the V-groove clamp 400. The cutting cylinder 630 is located on the top of the V-groove clamp 400, and its telescopic end is connected to the tool holder 620. The multiple tool modules 610 are all mounted on the tool holder 620 and correspond one-to-one with the multiple V-grooves 410. The center of the tool module 610 coincides with the centerline of the V-groove 410. In this embodiment of the invention, the cutting cylinder 630 drives the tool holder 620 to move vertically relative to the V-groove clamp 400 through its telescopic movement. The tool modules 610 follow the movement of the tool holder 620 and cut the communication cable 700 below during the downward movement.

[0043] In one embodiment, such as Figure 1 , Figure 2 , Figure 3 , Figure 7 , Figure 8 and Figure 9 As shown, a cutting rack 210 is provided near the end of the gantry frame 200. The tool module 610 includes a cutting shaft 611 and a cutting blade 612. The cutting shaft 611 is rotatably mounted on the tool holder 620. The tool holder 620 is also provided with a drive shaft 615, and the drive shaft 615 is provided with a cutting gear 616 that meshes with the cutting rack 210. Cutting pulleys 613 are provided on the drive shaft 615 and the multiple cutting shafts 611. The two are connected by a cutting transmission belt 614. In this embodiment of the invention, when the active rotating shaft 615 and multiple cutting rotating shafts 611 move vertically with the tool holder 620, the cutting rack 210 drives the active rotating shaft 615 to rotate through the meshing state with the cutting gear 616. Then, under the motion transmission of the cutting pulley 613 and the cutting transmission belt 614, the multiple cutting rotating shafts 611 rotate synchronously. The cutting blade 612 rotates with the cutting rotating shaft 611 and cuts the communication cable 700 below during the downward movement.

[0044] In one embodiment, such as Figure 1 , Figure 2 , Figure 3 , Figure 7 , Figure 8 and Figure 9As shown, the two V-groove clamping blocks 400 have a lower fixed V-shaped clamping block 440 and an upper fixed V-shaped clamping block unit 640 respectively on their sides away from the tool module 610. The lower fixed V-shaped clamping block 440 is fixedly connected to the tool module 610. The upper fixed V-shaped clamping block unit 640 includes an upper fixed V-shaped clamping block 641 and at least one upper guide rod 642. The upper fixed V-shaped clamping block 641 slides with the surface of the V-shaped clamping groove 410, and its surface opposite to the lower fixed V-shaped clamping block 440 has a V-shaped fixing clamping groove. One end of the upper guide rod 642 is fixedly connected to the upper fixed V-shaped clamping block 641 and passes through the top of the tool holder body 620. The top of the upper guide rod 642 is provided with a top plate portion 643, and the top plate portion 643 is connected to the tool holder body 620 through the lower fixed V-shaped clamping block 641. The compression spring 644 is connected to the V-shaped fixing groove. In this embodiment of the invention, the V-shaped fixing groove has a rubber elastic layer inside. In the initial state, the V-shaped fixing groove corresponds to the V-shaped clamping groove 410. It moves with the V-shaped clamping groove 410 and contacts the surface of the communication cable 700 without affecting the axial movement of the communication cable 700. During the process of the cutter module 610 moving down to cut the communication cable 700, the upper fixed V-shaped clamping block 641 moves relative to the V-shaped clamping groove 410 and applies downward pressure to the surface of the communication cable 700 under the elastic force of the lower compression spring 644. This can effectively compress the communication cable 700 to limit the axial movement of the communication cable 700 and prevent the communication cable 700 from moving during cutting, thus avoiding skewed cuts, dimensional deviations, or even damage to the core wire.

[0045] The above embodiment provides a cable cutting fixture for communication engineering in aircraft training equipment, and its working principle is as follows:

[0046] I. Cable support, transport, and length measurement

[0047] Multiple communication cables 700 to be cut are supported by a guide support 300, one end of which is connected to an external conveying device. Under the traction drive of the conveying device, the multiple communication cables 700 move horizontally towards the gantry frame 200 simultaneously. During this process, the communication cables 700 pass sequentially through each piercing and rotary cutting component 530 in the skin cutting mechanism 500, and between two opposing V-groove clamps 400 on the gantry frame 200.

[0048] During the movement of the communication cable 700, a laser measuring device (not shown in the figure) installed on the guide support 300 monitors the length of the communication cable 700 passing through its detection area in real time and with high precision. This length data is fed back to the control unit in real time, providing a precise length determination basis for the subsequent cutting process, ensuring that each cut cable segment is of consistent length, and meeting the stringent accuracy requirements for cable length of aircraft training equipment.

[0049] II. Cable Guiding and Pre-clamping

[0050] When the communication cable 700 passes between the two V-groove clamps 400, the clamping drive unit 800 is activated. The specific transmission principle is as follows: the clamping motor 820 drives the left and right rotating screws 810 to rotate. The left and right rotating screws 810, through their helical engagement with the two V-groove clamps 400 and the guiding action of the guide rod 830, drive the two V-groove clamps 400 to move synchronously towards each other in a direction perpendicular to the cable axis.

[0051] As the two V-groove clamps 400 approach each other, the communication cables 700 enter the space defined by the two opposing V-grooves 410. The V-grooves 410 are designed with a centering function, allowing the axes of communication cables 700 of different diameters to automatically align with the center of the piercing and cutting assembly 530, ensuring the accuracy of the subsequent sheath cutting position. Multiple guide rollers 430 arranged within the V-grooves 410 contact the surface of the communication cables 700. The rubber layer on the surface of the guide rollers 430 provides sufficient friction to prevent axial movement of the cable during cutting, while its rotatable nature does not hinder the normal axial movement of the communication cable 700 under traction, thus providing good guidance and stable support.

[0052] III. Cutting and peeling of the cable sheath

[0053] As the communication cable 700 continues to move towards the gantry frame 200, when its length extending from the gantry frame 200 is about to reach the preset length (i.e., before reaching the preset length), the outer sheath cutting mechanism 500 is triggered to begin pre-processing the outer sheath:

[0054] Radial insertion of the piercing parts: The piercing cylinder 538 is activated, and the frame push rod 5381 at its telescopic end pushes the outer extension frame 537, thereby driving the arc-shaped rotating plate 535 to rotate around the center of the rotary cutting ring 532. The arc-shaped drive through groove 536 on the arc-shaped rotating plate 535, through cooperation with the push rod 5331, converts the rotational motion into the radial movement of the push rod 5331, thereby driving multiple circumferentially distributed piercing parts 533 to move radially towards the center of the rotary cutting ring 532 simultaneously. The tips (cross-shaped tips) of the piercing parts 533 pierce the outer sheath in the radial direction of the communication cable 700, and the piercing depth is precisely controlled to cut through the outer sheath without damaging the internal core wires.

[0055] Axial slicing to form strip-shaped cuts: While the piercing part 533 remains in the piercing state, the communication cable 700 continues to move axially under the action of the conveying device. At this time, the tip of the piercing part 533 slides along the axial direction of the communication cable 700, slicing multiple parallel strip-shaped cuts on the cable sheath, providing conditions for subsequent overall circumferential cutting of the sheath.

[0056] Circumferential rotary cutting at the tail end of the strip-shaped cut: When the axial cutting reaches the preset cut length (this length is controlled by the adjusting cylinder 520 through adjusting the position of the base module 510), the barbed part 533 needs to perform circumferential rotary cutting at the tail end of the strip-shaped cut. At this time, the rotary cutting drive unit 534 is activated: the rotary cutting motor 5341 drives multiple rotary cutting shafts 5342 to rotate synchronously through the rotary cutting belt transmission component 5344. The rotary cutting gears 5343 on the rotary cutting shafts 5342 drive the rotary cutting ring body 532 to rotate around its own center by meshing with the rotary cutting gear ring 5321. The barbed part 533 fixed on the rotary cutting ring body 532 rotates accordingly, and its tip circumferentially cuts through the outer sheath of the communication cable 700, thereby forming a closed rotary cutting trajectory at the tail end of the strip-shaped cut.

[0057] Through the combined action of "axial slicing + tail-end rotary cutting", multiple strip-shaped pre-cut structures with one end closed and the other end open along the axis are processed on the outer sheath of the communication cable 700. Subsequently, the piercing cylinder 538 reverses its action, causing the piercing part 533 to radially withdraw from the cable outer sheath, completing the outer sheath pretreatment process.

[0058] IV. Fixed-length cutting of cables

[0059] The pre-cut communication cable 700 continues to move forward until the preset product section length passes through the gantry frame 200. At this point, the cutting assembly 600 performs the final cutting action.

[0060] Cable re-clamping: To ensure cutting accuracy, the auxiliary clamping structure on the V-groove clamp 400 plays a role. In the upper fixed V-shaped clamp unit 640, the lower pressure spring 644 always applies a downward elastic force to the upper fixed V-shaped clamp 641, so that the upper fixed V-shaped clamp 641 and the lower fixed V-shaped clamp 440 cooperate to firmly clamp the communication cable 700 near the position where it is about to be cut, effectively limiting any axial displacement of the communication cable 700 at the moment of cutting, and avoiding skewed cuts or damage to the core wires.

[0061] Rotary cutting: The cutting cylinder 630 drives the tool holder 620 to move downwards relative to the V-groove clamp 400 along the axial direction perpendicular to the cable. Multiple tool modules 610 mounted on the tool holder 620 move downwards synchronously. During this downward movement, the cutting gear 616 on the tool holder 620 meshes with the cutting rack 210 fixed on the gantry frame 200, converting linear motion into rotational motion of the drive shaft 615. The drive shaft 615, through the cutting pulley 613 and the cutting transmission belt 614, drives all the cutting shafts 611 and the cutting blades 612 mounted on them to rotate synchronously at high speed.

[0062] Cutting Completed: During its downward feed, the high-speed rotating cutting blade 612 cuts the communication cable 700 located below it using a rotary cutting method. The cutting position is precisely controlled at the front end of the pre-cut strip (i.e., the end closest to the gantry frame 200). After cutting, the portion in front of the gantry frame 200 becomes the cable product segment meeting the length requirements. Its front-end outer sheath has been pre-treated in the previous process and automatically detaches after cutting, exposing the core wires for subsequent communication engineering construction and cable connection operations. The communication cable 700 segment to be processed, located behind the V-groove clamp 400, still retains the pre-cut strip on its outer sheath. During the next feeding and cutting cycle, the outer sheath of this segment will automatically detach when the product segment separates, eliminating the need for repeated processing.

[0063] V. Reset and Cycling

[0064] After one work cycle is completed, each mechanism resets in sequence: the cutting cylinder 630 drives the tool holder 620 and tool module 610 to rise and reset; the clamping drive 800 drives the two V-groove clamps 400 to move in opposite directions, releasing the clamp on the communication cable 700; the conveying device continues to pull the communication cable 700 forward, starting the next cable processing cycle. The adjustable cylinder 520 can adjust the position of the piercing and rotary cutting assembly 530 in a timely manner according to the requirements of the outer sheath stripping length of different cable models, so as to change the axial cutting length and flexibly adapt to different processing needs.

[0065] In summary, this cable cutting fixture achieves automated, high-precision fixed-length cutting and outer sheath pretreatment of communication cables 700 through the precise coordination of multiple functions, including laser measuring device for accurate length measurement, axial slicing and circumferential rotary cutting of the sheath cutting mechanism 500, rotary cutting of the cutting component 600, and guidance and auxiliary clamping of the V-groove clamping block 400. This effectively improves the efficiency and quality of cable preparation in communication engineering for aircraft training equipment.

[0066] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and 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. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

Claims

1. A cable cutting fixture for communication engineering in aircraft training equipment, comprising a workbench, a gantry frame, a guide support, a clamping structure, a skin cutting mechanism, and a cutting assembly, characterized in that, Both the guide support and the gantry frame are set on the upper surface of the workbench and are arranged opposite to each other. The guide support is used to support multiple communication cables to be cut and to guide the communication cables to move towards the gantry frame. A laser measuring device is set on the guide support, which is used to monitor the length of the communication cable passing through the guide support in real time. The clamping structure is installed on the gantry frame and is used to fix the communication cable to be cut. It includes a clamping drive and two opposing V-groove clamps. The clamping drive is connected to the two V-groove clamps and is used to drive the two V-groove clamps to move towards or away from each other. The cutting component is mounted on one of the V-groove clamps and can be fed relative to the V-groove clamp in a direction perpendicular to the cable axis to cut the communication cable passing through the two V-groove clamps. The sheath cutting mechanism is located between the guide support and the gantry frame. The communication cable passes through the sheath cutting mechanism, which can penetrate the outer sheath of the communication cable from all sides to cut an opening at the cut point on the surface. The sheath cutting mechanism then performs a rotary cut at the tail end of the opening.

2. The cable cutting fixture for communication engineering of aircraft training equipment according to claim 1, characterized in that, The dermal incision mechanism includes a base frame module and multiple puncture and rotary cutting components. The base frame module is set on the upper surface of the workbench, and the multiple puncture and rotary cutting components are equally spaced on the base frame module. The piercing and cutting assembly includes a support, a cutting drive unit, a cutting ring, and multiple piercing parts with pointed tips that penetrate the outer sheath of the communication cable. The support is fixed on the base frame module, the rotary cutting ring is rotatably mounted on the support with a notch, and the rotary cutting drive unit is mounted on the support, which drives the rotary cutting ring to rotate around its own center. Multiple puncture points are circumferentially distributed on the outer wall of the rotary cutting ring and are capable of radial movement. The rotary cutting ring is provided with an insertion drive unit, which is connected to the tail of the multiple puncture points and is used to drive the multiple puncture points to move radially.

3. The cable cutting fixture for communication engineering of aircraft training equipment according to claim 2, characterized in that, Each of the aforementioned piercing portions is provided with a push rod at its tail end, and the piercing drive unit includes an arc-shaped rotating plate and a piercing cylinder; The arc-shaped rotating plate is rotatably mounted on the outer wall of the rotary cutting ring, and has multiple arc-shaped drive slots on it. Each push rod passes through the corresponding arc-shaped drive slot. The puncture cylinder is fixed to the side wall of the rotary cutting ring by a support. A frame push rod is provided at its telescopic end. An outer extension frame is also provided on the outer wall of the arc-shaped rotating plate. The frame push rod passes through the outer extension frame and can slide along its length.

4. The cable cutting fixture for communication engineering of aircraft training equipment according to claim 3, characterized in that, The outer wall of the rotary cutting ring is also provided with a rotary cutting tooth ring, and the rotary cutting drive unit includes a rotary cutting motor and multiple rotary cutting shafts; Multiple rotary cutting shafts are arranged in two symmetrical sets on the support. The rotary cutting motor is located in the middle of the support. Its output end is connected to the multiple rotary cutting shafts through a rotary cutting belt drive to drive the multiple rotary cutting shafts to rotate synchronously. Each of the two symmetrical rotary cutting shafts is equipped with a rotary cutting gear, and the two rotary cutting gears mesh with a rotary cutting gear ring.

5. The cable cutting fixture for communication engineering of aircraft training equipment according to claim 2, characterized in that, The skin incision mechanism also includes at least one adjustable cylinder. The base frame module is slidably engaged with the upper surface of the worktable. One end of the adjustable cylinder is connected to the base frame module, and the other end is connected to the guide support.

6. The cable cutting fixture for communication engineering in aircraft training equipment according to claim 1, characterized in that, The V-groove clamping block has multiple V-shaped clamping grooves on its clamping opposite surfaces. Both surfaces of the V-shaped clamping grooves have inner grooves, and multiple guide clamping rollers are arranged inside the inner grooves along the axial direction of the communication cable. The surfaces of the guide clamping rollers have a rubber layer.

7. The cable cutting fixture for communication engineering of aircraft training equipment according to claim 6, characterized in that, The clamping drive includes left and right spiral screws, a clamping motor, and a guide rod. The left and right spiral screws and the guide rod are respectively located at both ends of the V-groove clamping blocks and both pass through the two V-groove clamping blocks. The left and right spiral screws are helically engaged with the two V-groove clamping blocks, and the guide rods are axially slidingly engaged with the two V-groove clamping blocks. The clamping motor is located at the top of the gantry frame, and its output end is connected to one end of the left and right spiral screws.

8. The cable cutting fixture for communication engineering of aircraft training equipment according to claim 7, characterized in that, The cutting assembly includes a tool holder, a cutting cylinder, and multiple tool modules; The tool holder is mounted on one of the V-groove clamping blocks, with one end extending to one end face of the V-groove clamping block. It can move in the same direction as the V-groove clamping block. The cutting cylinder is mounted on the top of the V-groove clamping block, and its telescopic end is connected to the tool holder. Multiple tool modules are mounted on the tool holder and correspond one-to-one with multiple V-grooves. The center of the tool module coincides with the center line of the V-groove.

9. The cable cutting fixture for communication engineering of aircraft training equipment according to claim 8, characterized in that, A cutting rack is provided near the end of the gantry frame. The tool module includes a cutting shaft and a cutting blade. The cutting shaft is rotatably mounted on the tool holder. The tool holder is also provided with a drive shaft and a cutting gear that meshes with the cutting rack. Cutting pulleys are provided on the drive shaft and multiple cutting shafts. The multiple cutting pulleys are connected by a cutting transmission belt.

10. The cable cutting fixture for communication engineering of aircraft training equipment according to claim 9, characterized in that, The two V-groove clamping blocks are respectively provided with a lower fixed V-shaped clamping block and an upper fixed V-shaped clamping block unit on the sides away from the tool module; The lower fixed V-shaped clamping block is fixedly connected to the tool module. The upper fixed V-shaped clamping block unit includes an upper fixed V-shaped clamping block and at least one upper guide rod. The upper fixed V-shaped clamping block slides in fit with the V-shaped clamping groove surface. The surfaces of the upper fixed V-shaped clamping block opposite to the lower fixed V-shaped clamping block all have V-shaped fixed clamping grooves. One end of the upper guide rod is fixedly connected to the upper fixed V-shaped clamp and passes through the top of the tool holder. The top of the upper guide rod is provided with a top plate, and the top plate is connected to the tool holder by a downward compression spring.

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