A cutting device for frequency conversion cable production

Abstract

The application discloses a kind of cutting device for variable frequency cable production, it is related to cable cutting technical field, and its technical solution main points include rack, guide rod on guide rod, variable frequency cable, guide rod is provided with the fixed-length device of axial movement, fixed-length device is fixed variable frequency cable by its clamping portion, fixed-length device is used to control the cutting length of variable frequency cable, cable conveying device is provided on rack, cable conveying device is used to convey the end of variable frequency cable to the clamping portion of fixed-length device, the top of rack is provided with cutting device, cutting saw is provided on cutting device for cutting variable frequency cable. By peeling off insulating layer in advance, effectively solve the cutting flash problem, use air bag flexible clamping, improve the versatility of equipment and prevent cable surface damage.

Description

Technical Field

[0001] This invention relates to the field of cable cutting technology, specifically a cutting device for the production of frequency conversion cables. Background Technology

[0002] In the manufacturing process of frequency converter cables, fixed-length cutting is an indispensable step. In actual processing, especially for frequency converter cables with thick insulation layers and complex shielding structures, existing cable cutting devices mostly use sawing or shearing to cut the cables to a fixed length.

[0003] Although it can meet the basic length processing requirements, in actual applications, the intense friction between the cutting tool and the insulation layer generates heat, causing the insulation layer to melt and accumulate at the cut, forming burrs, which in turn affects the cutting quality of the cable port and subsequent installation and use.

[0004] The present invention disclosed in CN118080737B discloses a positioning fixture for cable processing, including a worktable, a movable plate, a movable component, a roller, a clamping component, a traction winding component, an up-down adjustment mechanism, a positioning component, a cutting component, a rotating clamping component, and a snap-fit ​​mechanism. The roller has several wire-carrying grooves evenly distributed on it, and a cutting groove is provided on the side of the two rollers that are far apart from each other. This solution can automatically wind the cable and can also collect multiple cut cables, improving work efficiency. However, the clamping and conveying mechanism mostly uses rigid clamps or simple mechanical pressing methods, which are difficult to adapt to cables of different wire diameters and specifications, resulting in poor versatility. Moreover, the cable surface is easily damaged due to improper pressure control during the clamping process. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a cutting device for the production of frequency conversion cables, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: a cutting device for producing frequency conversion cables, comprising a frame, a guide rod mounted on a guide rod, and a frequency conversion cable, wherein the guide rod is provided with an axially movable length fixing device, the length fixing device fixing the frequency conversion cable through a clamping part thereon, and the length fixing device being used to control the cutting length of the frequency conversion cable; The frame is equipped with a cable conveying device, which is used to convey the end of the frequency conversion cable to the clamping part of the fixed length device. The top of the frame is equipped with a cutting device, which is equipped with a cutting saw for cutting frequency conversion cables. The cutting device is used to control the cutting saw to move along the cutting path. The cable conveying device is equipped with an insulation stripping device at its end, which is used to cut the insulation layer of the frequency conversion cable. The cable conveying device includes a guide sleeve, which is slidably connected to the frame. An electrically controlled push rod is provided on one side of the guide sleeve, which is used to control the axial movement of the guide sleeve. The insulation stripping device includes a deflector rod and a tool holder. The deflector rod is fixedly connected to one end of the tool holder, and this end is hinged to the guide sleeve. The tool holder is equipped with a cutting blade for cutting frequency conversion cables, and a counterweight is provided at the end of the deflector rod away from the tool holder. A gear is provided on the outer side of the guide sleeve, and the gear is used to drive the guide sleeve to rotate axially. The gear drives the guide sleeve to rotate, causing the counterweight to contact the cutting blade with the surface of the frequency converter cable under the action of centrifugal force, and cut the insulation layer of the frequency converter cable.

[0007] According to the above technical solution, the cutting blade is provided with an adjustment hole, and the position of the cutting blade is fixed by using a screw in conjunction with the adjustment hole; The position of the cutting blade is related to the thickness of the insulation layer of the frequency conversion cable; After the cutting blade cuts the insulation layer of the frequency converter cable, the counterweight pulls the cutting blade away from the frequency converter cable.

[0008] According to the above technical solution, an elastic band is provided at the end of the deflector rod away from the tool holder, and a torsion spring is provided at the axis of the hinge shaft of the deflector rod and the tool holder. The torsion spring and the elastic band are used to reset the deflector rod and the tool holder when the guide sleeve stops rotating.

[0009] According to the above technical solution, the cable conveying device is provided with a clamping device 1 at its shaft center, and a control device 1 for controlling the operation of the clamping device 1. The clamping device includes a clamping sleeve, a supporting airbag is provided on the axis of the clamping sleeve, a clamping strip is provided on the outer side of the supporting airbag, and a plurality of partition grooves are provided on the clamping strip. The clamping bar has a wedge-shaped cross-section. The inner ring of the clamping bar with the smallest diameter is provided with a rubber ring. The inner ring of the clamping bar with the smallest diameter is close to the cutting side of the frequency converter cable, and a V-shaped variable bar is bent on the clamping bar on this side.

[0010] According to the above technical solution, the clamping sleeve is provided with an annular channel groove, and an airbag connection hole is provided on one side of the annular channel groove. The annular channel groove is connected to the cavity of the supporting airbag through the airbag connection hole.

[0011] The control device includes a fixing ring and a pressurizing cylinder. An electromagnet is fixedly connected to the clamping sleeve near the cutting side of the frequency conversion cable. The pressurizing cylinder is fixedly connected to the clamping sleeve, the pressurizing cylinder is connected to the annular channel, and a piston rod is slidably connected to the side of the pressurizing cylinder away from the clamping sleeve. A permanent magnet is provided on the piston rod. The clamping sleeve is fixed inside the fixing ring, one end of the fixing ring is fixedly connected to the extension sleeve, and the extension sleeve is fixedly connected to the guide rod.

[0012] According to the above technical solution, a cable clamping frame is fixedly connected to the guide rod, and a clamping device two is also provided inside the cable clamping frame. The clamping device two includes a clamping sleeve two and an annular channel groove two. The clamping device one and the clamping device two on the cable clamping frame and the cable conveying device are located on both sides of the cutting saw, and the clamping device one and the clamping device two are mirror images of each other. The cable clamp is equipped with a second control device, which is used to control the operation of the clamping device. The second control device includes a pressure ring and a second fixing ring. The pressure ring is slidably connected to the second clamping sleeve of the second clamping device. The pressure ring is provided with a plurality of second permanent magnets. The pressure ring and the electromagnet are mutually compatible. The second pressurizing cylinder is fixedly connected to the second clamping sleeve, the second pressurizing cylinder is connected to the second annular channel, and a second piston rod is slidably connected to one side of the second pressurizing cylinder, the second piston rod is in contact with the second permanent magnet; The clamping sleeve two is fixedly connected inside the fixing ring two, and the fixing ring two is fixedly connected to the cable clamping frame.

[0013] This invention provides a cutting device for the production of frequency conversion cables. It has the following advantages: This invention utilizes a linkage structure of a sway bar, a tool holder, and a counterweight to enable the guide sleeve to rotate at high speed. Centrifugal force overcomes the resistance of the elastic element, forcing the counterweight to swing outward. This, in turn, drives the cutting blade to extend radially and contact the cable surface, completing the pre-cutting of the thick insulation layer during cable transport. By pre-peeling the insulation layer, it effectively avoids the formation of burrs due to high-temperature melting of the insulation material during the final cut of the cable. This significantly improves the cutting quality and aesthetics of the cable end. Furthermore, this structure utilizes centrifugal force for automatic blade feeding and automatically resets after stopping, requiring no additional drive control. The structure is ingenious and highly reliable. This invention utilizes a control device to drive a pressurizing cylinder to inflate a supporting airbag. The airbag expands and compresses the clamping bar, which in turn contracts its inner diameter due to elastic deformation, thus gripping the cable. This flexible clamping method not only adapts to frequency conversion cables of different diameters, solving the problem of poor versatility of traditional rigid clamps, but also avoids damage to the cable surface due to excessive clamping force through the buffering effect of the rubber ring and the airbag, achieving non-destructive and stable cable transport.

[0014] In this invention, when the cutting operation begins, the electromagnet is energized to generate magnetic repulsion. On one hand, this directly pushes the piston rod to lock the cable on the conveying side. On the other hand, the magnetic repulsion simultaneously pushes the permanent magnet and piston rod at the far end, causing the clamping device on the other side of the cutting area to be simultaneously inflated and locked. This ensures that at the moment the cutting saw contacts the cable, both sides of the cutting point can be provided with a stable vertical axial compressive force, effectively offsetting the impact and vibration when the cutting saw cuts down. This prevents the outer shielding layer of the cable from tearing or misaligning due to uneven force or vibration, greatly ensuring the structural integrity and electrical performance stability of the finished frequency conversion cable. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram showing the overall structure of the present invention; Figure 3 This is a schematic diagram of the stepped cross-sectional structure of the overall cable conveying device of the present invention; Figure 4 This invention as a whole Figure 3 A structural diagram of area A; Figure 5 This is a half-sectional view of the overall cable clamping frame of the present invention; Figure 6 This invention as a whole Figure 4 A structural diagram of area B; Figure 7 This is a schematic diagram of the overall insulation layer stripping device of the present invention.

[0016] In the diagram: 1. Guide rod; 2. Length fixing device; 3. Cable conveying device; 301. Material guide sleeve; 302. Electrically controlled push rod; 303. Gear; 4. Cutting device; 5. Cable clamp; 6a. Clamping device 1; 601a. ​​Clamping bar 1; 602a. Dividing groove 1; 603a. V-shaped deformation bar 1; 604a. Rubber ring 1; 605a. Support airbag 1; 606a. Clamping sleeve 1; 607a. Annular channel groove 1; 608a. Airbag connecting hole 1; 6b. Clamping device two; 601b. Clamping bar two; 602b. Dividing groove two; 603b. V-shaped deformation bar two; 604b. Rubber ring two; 605b. Support airbag two; 606b. Clamping sleeve two; 607b. Annular channel groove two; 608b. Airbag connecting hole two; 7. Control device 1; 701. Electromagnet; 702. Pressurizing cylinder 1; 703. Piston rod 1; 704. Fixing ring 1; 705. Extension sleeve; 8. Insulation layer peeling device; 801. Bias rod; 802. Tool holder; 803. Cutting blade; 804. Adjustment hole; 805. Elastic band; 806. Counterweight; 807. Torsion spring; 9. Control device two; 901. Pressure ring; 902. Permanent magnet two; 903. Pressurized cylinder two; 904. Piston rod two; 905. Fixed ring two; 10. Cutting saw; 11. Frame; 12. Variable frequency cable. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0018] Please see Figure 1-7 A cutting device for producing frequency conversion cables includes a frame 11, a guide rod 1 mounted on a guide rod 1, and a frequency conversion cable 12. The guide rod 1 is provided with an axially movable length fixing device 2. The length fixing device 2 fixes the frequency conversion cable 12 through a clamping part thereon. The length fixing device 2 is used to control the cutting length of the frequency conversion cable 12. A cable conveying device 3 is provided on the frame 11. The cable conveying device 3 is used to convey the end of the frequency conversion cable 12 to the clamping part of the fixed length device 2. A cutting device 4 is provided on the top of the frame 11. A cutting saw 10 for cutting the frequency conversion cable 12 is provided on the cutting device 4. The cutting device 4 is used to control the cutting saw 10 to move along the cutting path. The cable conveying device 3 is equipped with an insulation stripping device 8 at its end, which is used to cut the insulation layer of the frequency conversion cable 12. The cable conveying device 3 includes a guide sleeve 301, which is slidably connected to the frame 11. An electrically controlled push rod 302 is provided on one side of the guide sleeve 301, which is used to control the axial movement of the guide sleeve 301. The insulation stripping device 8 includes a deflector rod 801 and a tool holder 802. The deflector rod 801 is fixedly connected to one end of the tool holder 802, and this end is hinged to the guide sleeve 301. The tool holder 802 is provided with a cutting blade 803 for cutting the frequency conversion cable 12. The end of the deflector rod 801 away from the tool holder 802 is provided with a counterweight 806. A gear 303 is provided on the outer side of the guide sleeve 301, and the gear 303 is used to drive the guide sleeve 301 to rotate axially. The gear 303 drives the guide sleeve 301 to rotate, so that the counterweight 806, under the action of centrifugal force, makes the cutting blade 803 contact the surface of the frequency converter cable 12 and cut the surface insulation layer of the frequency converter cable 12.

[0019] Furthermore, the length-fixing device 2 is pulled and moved by a pulley group controlled by a stepper motor.

[0020] Furthermore, the cutting device 4 is equipped with a guide rail for controlling the axial movement of the cutting saw 10, and a motor for controlling the rotation of the cutting saw 10.

[0021] Furthermore, the length-fixing device 2 is equipped with upper and lower clamps, and the movement of the upper clamp is controlled by a cylinder to clamp the frequency conversion cable 12.

[0022] Furthermore, the electrically controlled push rod 302 is driven by an independent motor in conjunction with a gear mechanism.

[0023] In use, the rotation of the electrically controlled push rod 302 drives the guide sleeve 301 to rotate rapidly. At this time, the counterweight 806 at the end of the eccentric rod 801 on the guide sleeve 301 moves away from the axis of the guide sleeve 301 under the action of centrifugal force. At this time, the cutting blade 803 on the tool holder 802 approaches the frequency conversion cable 12 and makes contact. Since the frequency conversion cable 12 is a coil, it cannot rotate. At this time, the cutting edge on the cutting blade 803 cuts the insulation layer on the surface of the frequency conversion cable 12 under the action of centrifugal force, thereby achieving the purpose of pre-peeling the thicker insulation layer on the surface of the frequency conversion cable 12 and avoiding the problem of burrs caused by heat accumulation when the cutting saw 10 cuts.

[0024] The cutting blade 803 is provided with an adjustment hole 804, and the position of the cutting blade 803 is fixed by using a screw in conjunction with the adjustment hole 804; The position of the cutting blade 803 is related to the thickness of the insulation layer of the frequency conversion cable 12; After the cutting blade 803 has cut the insulation layer of the frequency converter cable 12, the counterweight 806 pulls the cutting blade 803 away from the frequency converter cable 12.

[0025] Furthermore, the cutting width of the adjustment hole 804 corresponds to the cutting blade width of the cutting saw 10.

[0026] Furthermore, when the guide sleeve 301 stops rotating, the deflector 801 is controlled by the laser detector to be on the side away from the cutting saw 10, so as to prevent the cutting saw 10 from contacting the cutting blade 803.

[0027] Furthermore, after the cutting blade 803 completes the cutting of the frequency converter cable 12, the cutting blade 803 continues to swing along the cutting direction under the action of the centrifugal force of the counterweight 806 and disengages from the frequency converter cable 12.

[0028] An elastic band 805 is provided at the end of the deflector 801 away from the tool holder 802. A torsion spring 807 is provided at the axis of the hinge shaft of the deflector 801 and the tool holder 802. The torsion spring 807 and the elastic band 805 are used to reset the deflector 801 and the tool holder 802 when the guide sleeve 301 stops rotating.

[0029] Furthermore, the mating surfaces of the sway bar 801 and the guide sleeve 301 are provided with pins for limiting the sway angle of the sway bar 801, thereby improving the stability and safety of the sway bar 801 during operation.

[0030] When in use, when the guide sleeve 301 starts to rotate, the counterweight 806, under the action of centrifugal force, overcomes the force of the torsion spring 807 and the elastic band 805, causing the hinge shaft of the eccentric rod 801 and the tool holder 802 to rotate, and causing the cutting blade 803 to approach the frequency conversion cable 12 and cut the insulation layer on the outer surface of the frequency conversion cable 12. At this time, the torsion spring 807 and the elastic band 805 continue to store energy. When the guide sleeve 301 stops working, the eccentric rod 801 returns to its original position under the torsional force and tension of the torsion spring 807 and the elastic band 805.

[0031] The cable conveying device 3 has a clamping device 6a on its shaft and a control device 7 for controlling the operation of the clamping device 6a. The clamping device 6a includes a clamping sleeve 606a, a support airbag 605a is provided on the axis of the clamping sleeve 606a, a clamping strip 601a is provided on the outer side of the support airbag 605a, and a plurality of partition grooves 602a are provided on the clamping strip 601a. The clamping bar 601a has a wedge-shaped cross section. The inner ring of the clamping bar 601a with the smallest diameter is provided with a rubber ring 604a. The inner ring of the clamping bar 601a with the smallest diameter is close to the cutting side of the frequency converter cable 12, and a V-shaped variable bar 603a is bent on the clamping bar 601a on this side.

[0032] Furthermore, the inner ring of the clamping bar 601a near the cutting side of the cutting saw 10 with a small angle of inclination is also provided to facilitate the insertion of the frequency conversion cable 12.

[0033] Furthermore, the inner ring of the clamping bar 601a with the smallest diameter is used to clamp the frequency conversion cable 12.

[0034] Furthermore, the partition groove 602a provided between the clamping bars 601a, and the V-shaped deformation bar 603a on the side of the clamping bar 601a, allow the diameter of the inner ring of the clamping bar 601a with the smallest diameter to fluctuate by a certain value, thereby enabling the processing of frequency conversion cables 12 of various sizes.

[0035] The clamping sleeve 606a is provided with an annular channel groove 607a. An airbag connection hole 608a is provided on one side of the annular channel groove 607a. The annular channel groove 607a is connected to the cavity of the supporting airbag 605a through the airbag connection hole 608a.

[0036] Furthermore, the support airbag 605a, the airbag connecting hole 608a, and the annular channel groove 607a are connected and sealed.

[0037] The control device 7 includes a fixing ring 704, a pressurizing cylinder 702, and an electromagnet 701 fixedly connected to the clamping sleeve 606a near the cutting side of the frequency conversion cable 12. The pressurizing cylinder 702 is fixedly connected to the clamping sleeve 606a. The pressurizing cylinder 702 is connected to the annular channel groove 607a. The side of the pressurizing cylinder 702 away from the clamping sleeve 606a is slidably connected to the piston rod 703. A permanent magnet is provided on the piston rod 703. The clamping sleeve 606a is fixed inside the fixing ring 704. One end of the fixing ring 704 is fixedly connected to the extension sleeve 705. The extension sleeve 705 is fixedly connected to the guide rod 1. Furthermore, a spring can be fitted on the outside of the piston rod 703 to assist the piston rod 703 in resetting.

[0038] When in use, the electromagnet 701 is energized, causing the permanent magnet on the piston rod 703 to be repulsed, which compresses the air in the pressurizing cylinder 702 and delivers the air through the annular channel 607a and the airbag connection hole 608a to the support airbag 605a, thereby increasing the air pressure in the support airbag 605a and causing the clamping bar 601a to expand to a certain extent, thereby clamping the frequency conversion cable 12. When the electromagnet 701 is de-energized, the high voltage in the support airbag 605a is guided by the annular channel 607a, the airbag connection hole 608a, and the pressurizing cylinder 702 to apply a reaction force to the piston rod 703. At the same time, under the action of the spring force, the piston rod 703 moves in the opposite direction and resets. After the cutting saw 10 cuts the variable frequency cable 12 at the end of the guide sleeve 301, the guide sleeve 301 is pulled by the electric control push rod 302 to move away from the length fixing device 2. At this time, the electromagnet 701 does not work, and the clamping device 6a does not apply force to the variable frequency cable 12 on the axis. At this time, the variable frequency cable 12 and the guide sleeve 301 move relative to each other. When the electric control push rod 302 moves to the end, it controls the guide sleeve 301 to move in the opposite direction. At this time, the electromagnet 701 starts to work, so that the clamping device 6a clamps the variable frequency cable 12 and conveys the variable frequency cable 12 toward the clamping part of the length fixing device 2 until the length fixing device 2 is clamped and fixed by the variable frequency cable 12. At this time, the electromagnet 701 stops working. Then, the cutting saw 10 is pulled by the length fixing device 2 until the cutting saw 10 reaches the required length. At this time, the cutting device 4 controls the cutting saw 10 to cut the variable frequency cable 12.

[0039] A cable clamping frame 5 is fixedly connected to the guide rod 1. A clamping device 6b is also provided inside the cable clamping frame 5. The clamping device 6b includes a clamping sleeve 606b and an annular channel groove 607b. The clamping devices 6a and 6b on the cable clamping frame 5 and the cable conveying device 3 are located on both sides of the cutting saw 10, and the clamping devices 6a and 6b are mirror images of each other. The cable clamp 5 is equipped with a control device 2 9, which is used to control the operation of the clamping device 2 6b. Control device 2 9 includes a pressure ring 901 and a fixing ring 2 905. The pressure ring 901 is slidably connected to the clamping sleeve 2 606b of the clamping device 2 6b. Multiple permanent magnets 2 902 are provided on the pressure ring 901. The pressure ring 901 and the electromagnet 701 are mutually compatible. The second pressurizing cylinder 903 is fixedly connected to the second clamping sleeve 606b. The second pressurizing cylinder 903 is connected to the second annular channel groove 607b. The second piston rod 904 is slidably connected to one side of the second pressurizing cylinder 903. The second piston rod 904 is in contact with the second permanent magnet 902. The clamping sleeve 606b is fixedly connected inside the fixing ring 905, and the fixing ring 905 is fixedly connected to the cable clamping frame 5.

[0040] Furthermore, clamping device 6a and clamping device 6b have the same structure and function.

[0041] When in use, when the cutting saw 10 cuts the frequency conversion cable 12, the electromagnet 701 is energized. Under the repulsive force of the permanent magnet on the piston rod 703, the air in the pressurizing cylinder 702 is squeezed, thereby increasing the air pressure in the support airbag 605a, squeezing the clamping bar 601a, and making the clamping bar 601a clamp the frequency conversion cable 12. At the same time, the permanent magnet 2902 is also subjected to the repulsive force of the electromagnet 701. At this time, the permanent magnet 2902 squeezes the piston rod 2904, and forces the air in the pressurizing cylinder 2903 into the supporting airbag 2605b through the annular channel groove 2607b and the airbag connecting hole 2608b, so that the air pressure of the supporting airbag 2605b increases, and the frequency conversion cable 12 is clamped by the clamping bar 2601b. Therefore, a vertical axial compressive force is applied to the variable frequency cable 12 on both sides of the cutting area of ​​the variable frequency cable 12 to prevent the shielding layer of the outer ring of the variable frequency cable 12 from being torn by the impact of the cutting saw 10 during operation.

[0042] Working principle: The electric control push rod 302 of the cable conveying device 3 drives the guide sleeve 301 to move along the frame axis, conveying the frequency conversion cable 12 towards the fixed length device 2. During the conveying process, the gear 303 drives the guide sleeve 301 to rotate at high speed. The centrifugal force causes the counterweight 806 of the insulation peeling device 8 to swing outward, thereby driving the cutting blade 803 to contact and pre-cut the thicker insulation layer on the outer surface of the cable to avoid the formation of burrs due to heat accumulation during subsequent cutting. When the sleeve stops rotating, the torsion spring 807 and the elastic band 805 cause the sway bar 801 to automatically reset, causing the cutting blade to disengage from the cable. Once the cable is delivered to the set position, the control device 7 is activated, and the electromagnet 701 is energized to generate magnetic repulsion, which pushes the piston rod 703 to compress the air in the pressurizing cylinder 702. The high-pressure air enters the support airbag 605a through the annular channel groove 607a and the airbag connection hole 608a, causing it to expand and compress the clamping bar 601a, thereby achieving a stable and adaptive clamping of the cable. Subsequently, the length-fixing device 2 pulls the cable to the required length, and the cutting device 4 controls the cutting saw 10 to move along the guide rail and complete the cut.

[0043] When the cutting saw 10 is cutting, the repulsive force of the electromagnet 701 acts simultaneously on the permanent magnet 902 of the control device 29. This repulsive force pushes the piston rod 2904, which forces the air in the pressurizing cylinder 2903 into the support airbag 2605b of the clamping device 26b. This causes the clamping bar 2601b on the other side of the cutting area to expand synchronously and clamp the cable. The double-sided airbag clamping device applies a vertical axial compressive force to the cable, effectively preventing the impact force generated during the operation of the cutting saw from tearing the outer shielding layer of the cable and ensuring the cutting quality.

[0044] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A cutting device for producing variable frequency cables, comprising a frame (11), a guide rod (1) mounted on a guide rod (1), and a variable frequency cable (12), characterized in that: The guide rod (1) is provided with an axially movable length fixing device (2), which fixes the frequency conversion cable (12) through the clamping part thereon, and the length fixing device (2) is used to control the cutting length of the frequency conversion cable (12). The frame (11) is provided with a cable conveying device (3), which is used to convey the end of the frequency conversion cable (12) to the clamping part of the fixed length device (2); The top of the frame (11) is provided with a cutting device (4), and the cutting device (4) is provided with a cutting saw (10) for cutting the frequency conversion cable (12). The cutting device (4) is used to control the cutting saw (10) to move along the cutting path. The cable conveying device (3) is provided with an insulation stripping device (8) at its end, which is used to cut the insulation layer of the frequency conversion cable (12). The cable conveying device (3) includes a guide sleeve (301), which is slidably connected to the frame (11). An electrically controlled push rod (302) is provided on one side of the guide sleeve (301), which is used to control the axial movement of the guide sleeve (301). The insulation stripping device (8) includes a deflector rod (801) and a tool holder (802). The deflector rod (801) is fixedly connected to one end of the tool holder (802), and this end is hinged to the guide sleeve (301). The tool holder (802) is provided with a cutting blade (803) for cutting the frequency conversion cable (12). A counterweight (806) is provided at the end of the deflector rod (801) away from the tool holder (802). A gear (303) is provided on the outer side of the guide sleeve (301), and the gear (303) is used to drive the guide sleeve (301) to rotate axially. The gear (303) drives the guide sleeve (301) to rotate, so that the counterweight (806) makes the cutting blade (803) contact the outer surface of the frequency converter cable (12) under the action of centrifugal force, and cuts the outer insulation layer of the frequency converter cable (12).

2. The cutting device for frequency conversion cable production according to claim 1, characterized in that: The cutting blade (803) is provided with an adjustment hole (804), and the position of the cutting blade (803) is fixed by using a screw in conjunction with the adjustment hole (804); The position of the cutting blade (803) is related to the thickness of the insulation layer of the frequency conversion cable (12); After the cutting blade (803) cuts the insulation layer of the frequency converter cable (12), the counterweight (806) pulls the cutting blade (803) away from the frequency converter cable (12).

3. The cutting device for frequency conversion cable production according to claim 2, characterized in that: An elastic band (805) is provided at the end of the sway bar (801) away from the tool holder (802). A torsion spring (807) is provided at the axis of the hinge shaft of the sway bar (801) and the tool holder (802). The torsion spring (807) and the elastic band (805) are used to reset the sway bar (801) and the tool holder (802) when the guide sleeve (301) stops rotating.

4. The cutting device for frequency conversion cable production according to claim 1, characterized in that: The cable conveying device (3) is provided with a clamping device (6a) at its axis and a control device (7) for controlling the operation of the clamping device (6a). The clamping device 1 (6a) includes a clamping sleeve 1 (606a), a support airbag 1 (605a) is provided on the axis of the clamping sleeve 1 (606a), a clamping strip 1 (601a) is provided on the outside of the support airbag 1 (605a), and a plurality of partition grooves 1 (602a) are provided on the clamping strip 1 (601a). The clamping bar (601a) has a wedge-shaped cross section. The inner ring of the clamping bar (601a) with the smallest diameter is provided with a rubber ring (604a). The inner ring of the clamping bar (601a) with the smallest diameter is close to the cutting side of the frequency conversion cable (12), and a V-shaped variable bar (603a) is bent on the clamping bar (601a) on this side.

5. The cutting device for frequency conversion cable production according to claim 4, characterized in that: The clamping sleeve (606a) is provided with an annular channel groove (607a), and an airbag connection hole (608a) is provided on one side of the annular channel groove (607a). The annular channel groove (607a) is connected to the cavity of the supporting airbag (605a) through the airbag connection hole (608a).

6. The cutting device for frequency conversion cable production according to claim 5, characterized in that: The control device 1 (7) includes a fixing ring 1 (704) and a pressurizing cylinder 1 (702). An electromagnet (701) is fixedly connected to the clamping sleeve 1 (606a) near the cutting side of the frequency conversion cable (12). The pressurizing cylinder (702) is fixedly connected to the clamping sleeve (606a), the pressurizing cylinder (702) is connected to the annular channel groove (607a), and a piston rod (703) is slidably connected to the side of the pressurizing cylinder (702) away from the clamping sleeve (606a). A permanent magnet is provided on the piston rod (703). The clamping sleeve (606a) is fixed inside the fixing ring (704), one end of the fixing ring (704) is fixedly connected to the extension sleeve (705), and the extension sleeve (705) is fixedly connected to the guide rod (1).

7. The cutting device for frequency conversion cable production according to claim 6, characterized in that: A cable clamping frame (5) is fixedly connected to the guide rod (1). A clamping device two (6b) is also provided inside the cable clamping frame (5). The clamping device two (6b) includes a clamping sleeve two (606b) and an annular channel groove two (607b). The clamping device one (6a) and clamping device two (6b) on the cable clamping frame (5) and the cable conveying device (3) are located on both sides of the cutting saw (10), and the clamping device one (6a) and clamping device two (6b) are mirror images of each other. The cable clamp (5) is equipped with a control device two (9), which is used to control the operation of the clamping device two (6b); The second control device (9) includes a pressure ring (901) and a second fixing ring (905). The pressure ring (901) is slidably connected to the second clamping sleeve (606b) of the second clamping device (6b). The pressure ring (901) is provided with a plurality of second permanent magnets (902). The pressure ring (901) is compatible with the electromagnet (701). The second pressurizing cylinder (903) is fixedly connected to the second clamping sleeve (606b), the second pressurizing cylinder (903) is connected to the second annular channel groove (607b), and a second piston rod (904) is slidably connected to one side of the second pressurizing cylinder (903), and the second piston rod (904) is in contact with the second permanent magnet (902). The clamping sleeve two (606b) is fixedly connected inside the fixing ring two (905), and the fixing ring two (905) is fixedly connected to the cable clamping frame (5).

Images