Fixed-length cutting device for insulator core rod

Abstract

The invention discloses a fixed-length cutting device for an insulator core rod, and relates to the technical field of cutting of insulator core rods, the fixed-length cutting device comprises a supporting guide rail frame, an equidistant telescopic mechanism and four cutting mechanisms, in the equidistant telescopic mechanism, a hydraulic oil cylinder is matched with a unique rhombic telescopic frame, when a piston rod of the hydraulic oil cylinder stretches out and draws back, the rhombic telescopic frame deforms, and the four cutting mechanisms are cut off. The distance between the limiting plate and the cutting mechanism supporting seat is constant, equal-distance adjustment of the four cutting mechanisms is accurately achieved, the defects of a traditional equal-distance cutting technology are overcome, and the cutting precision and stability are improved. The cutting mechanism comprises a transverse seat, a supporting seat, a lifting execution part, a clamping execution part and a reciprocating dragsaw execution part, the clamping execution part accurately clamps a core rod through a double-thread screw and the like, the lifting execution part and the reciprocating dragsaw execution part cooperatively control a saw blade to act, and all the mechanisms are connected with a main power source through a control box and achieve synchronous control. The cutting quality and efficiency of the insulator core rod are effectively improved, and the high-standard requirement of the electric power industry for core rod machining is met.

Description

Technical Field

[0001] The invention relates to the technical field of cutting an insulator core rod, and in particular to a device for cutting an insulator core rod to a fixed length. Background Art

[0002] As a key insulating component in the power system, the processing quality of insulator core rods plays a vital role in ensuring the safe and stable operation of power equipment; the cutting process is an important link in the processing of insulator core rods, and accurate fixed-length cutting can ensure that the core rods meet strict dimensional requirements in subsequent assembly and use; with the rapid development of the power industry, the demand for insulator core rods continues to rise, and at the same time, higher standards are also put forward for their cutting accuracy, efficiency and quality stability; therefore, the development of advanced insulator core rod cutting technology has become an urgent need in the industry, and traditional cutting technology has gradually exposed many shortcomings in this context.

[0003] Previous cutting devices mostly relied on relatively simple mechanical structures or complex electronic control systems to achieve equidistant cutting at multiple cutting points. The simple mechanical structure often finds it difficult to balance structural stability with high-precision equidistant cutting requirements. For example, a simple connecting rod or chain drive is used to adjust the cutting position, which is not only prone to cutting spacing deviation due to mechanical wear, but also causes serious structural deformation under long-term high-load operation, greatly affecting the cutting accuracy and product quality consistency. In view of this, this paper proposes a fixed-length cutting device for insulator core rods. Summary of the invention

[0004] The main purpose of the present invention is to provide a device for cutting insulator core rods to a fixed length, which can effectively solve the problems in the background technology.

[0005] To achieve the above object, the technical solution adopted by the present invention is: A fixed-length cutting device for an insulator core rod comprises a support rail frame, an equidistant telescopic mechanism and four equidistantly arranged cutting mechanisms, wherein the four cutting mechanisms are equidistantly telescopically and slidably mounted above the support rail frame through the equidistant telescopic mechanism; The support guide rail frame is mainly composed of a support leg frame and two straight rails parallel to each other, the two straight rails are respectively fixedly installed on both sides of the top of the support leg frame, a limit plate is vertically fixedly installed on the upper left side of the two straight rails in the support guide rail frame, a cylinder is fixedly installed below the limit plate, and the left end of the support leg frame in the support guide rail frame is fixedly connected to a cylinder connecting seat; The equidistant telescopic mechanism comprises a hydraulic cylinder and a diamond-shaped telescopic frame, wherein the diamond-shaped telescopic frame is composed of eight X-shaped folding rods and two V-shaped folding rods to form nine diamond-shaped structures connected in sequence, the outer cylinder in the hydraulic cylinder is fixedly installed in the cylinder connecting seat, the piston rod in the hydraulic cylinder is arranged to face left, and the left end of the piston rod in the hydraulic cylinder is connected to the left end of the diamond-shaped telescopic frame; The cutting mechanism includes a support seat, and the support seats in the four cutting mechanisms are equidistantly arranged on the diamond-shaped telescopic frame, and the support seats in the four cutting mechanisms are respectively rotatably installed on the rotating point in the middle of the third X-shaped folding rod from the left, the rotating point in the middle of the fifth X-shaped folding rod, the rotating point in the middle of the seventh X-shaped folding rod and the rotating point in the middle of the V-shaped folding rod on the right. A connecting column is coaxially rotatably connected below the rotating point in the middle of the V-shaped folding rod on the left, and the bottom of the connecting column is fixedly connected to the left end of the piston rod in the hydraulic cylinder.

[0006] Preferably, the cutting mechanism is mainly composed of a cross seat, a support seat, two side tables, two slides, a fine-toothed saw blade, a lifting actuator, a reciprocating saw actuator and a clamping actuator. The two side tables are symmetrically fixedly installed at the two ends of the cross seat, the two slides are fixedly installed at the bottom of the two side tables, the bottoms of the two slides are slidably installed on two straight rails, the support seat is fixedly installed at the middle end of the cross seat, the fine-toothed saw blade is installed on the top of the cross seat through the lifting actuator and the reciprocating saw actuator, and the clamping actuator is installed at the lower end of the cutting mechanism.

[0007] Preferably, the clamping actuator is mainly composed of two mutually parallel double-threaded screws, four sliders, a second reduction motor, two pulleys and a belt ring, the two double-threaded screws are respectively and symmetrically installed on both sides of the cross seat, the two sides of the double-threaded screw are symmetrically provided with external threads with opposite spiral forms, the four sliders are respectively threadedly installed on the four external threads on the two double-threaded screws, and the intersection of the oblique lines between the four sliders and the center point of the support seat are on the same vertical straight line, the two ends of the double-threaded screw are respectively rotatably connected to the two side platforms, the two pulleys are coaxially fixedly installed on one end of the two double-threaded screws, the inner rings of the belt rings are respectively extruded and meshed with the periphery of the two pulleys, the second reduction motor is fixedly connected to the outer end face of a side platform, the output shaft of the second reduction motor is coaxially fixedly connected to one end of a double-threaded screw through a coupling, the four sliders are respectively linearly slidably installed on both sides of the cross seat through a plurality of pulleys, and the four sliders are respectively fixedly installed with clamping rods in an inclined state, and the two clamping rods on the double-threaded screws are staggered.

[0008] Preferably, the lifting actuator is mainly composed of a fixed platform, an electric push cylinder, four first guide columns and a lifting frame, the fine-toothed saw blade is installed in parallel at the bottom of the lifting frame, the lower ends of the four first guide columns are respectively vertically fixedly installed on the two side platforms, the four corners below the fixed platform are respectively vertically fixedly installed on the top of the four first guide columns, the four corners of the lifting frame are respectively lifted and slidably installed on the four first guide columns, the outer shell in the electric push cylinder is vertically fixedly installed above the fixed platform, the push rod in the electric push cylinder is vertically downwardly arranged, and the end of the push rod in the electric push cylinder is fixedly installed with a connecting frame, and the bottom of the connecting frame is fixedly installed on the top of the lifting frame.

[0009] Preferably, the reciprocating saw actuator is mainly composed of a first reduction motor, a disc, a rotating rod, a pull rod and a saw blade connecting seat. The first reduction motor is fixedly connected to the lifting frame, and the output shaft of the first reduction motor is coaxially rotatably connected to one side of the disc through a coupling. One end of the rotating rod is rotatably connected to one side edge of the disc, and the other end of the rotating rod is rotatably connected to the head end of the pull rod. The pull rod passes through the inner cavity of the connecting frame, and the fine-toothed saw blade is fixedly installed under the saw blade connecting seat. A number of guide wheels are rotatably installed on both sides of the saw blade connecting seat, and the guide wheels are horizontally slidably installed on both sides of the lifting frame.

[0010] Preferably, the electric push cylinders and the first reduction motor in the four cutting mechanisms are connected to a control box via wires, and the control box is connected to a main power supply.

[0011] Preferably, an arc-shaped positioning groove for supporting and placing the insulator core rod is provided on the upper surface of the support seat, and a first rubber pad is fittedly mounted on the inner wall of the arc-shaped positioning groove at the top end of the support seat.

[0012] Preferably, a second rubber pad is fixedly mounted on the inclined surface below the clamping rod, and a triangular structure can be formed between the two clamping rods and the support seat on the double-threaded screw.

[0013] Preferably, a second guide column for guiding the reciprocating saw actuator is fixedly connected to one side of the side platform, and one side of the first reduction motor in the reciprocating saw actuator is lifted and slidably installed on the second guide column.

[0014] Preferably, a guide seat is fixedly installed on the upper side of one side of the lifting frame, and the outer wall of the pull rod slides through the guide seat.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. Innovative realization of equidistant cutting: Through the ingenious combination of the hydraulic cylinder and the diamond telescopic frame in the equidistant telescopic mechanism, the deformation characteristics of the diamond structure are utilized to realize the equidistant adjustment between the four cutting mechanisms; when the hydraulic cylinder piston rod is extended and retracted, it can accurately drive the diamond telescopic frame to deform, thereby ensuring that the distance between the limit plate and each support seat is always consistent, thereby smoothly realizing the equidistant adjustment between the four cutting mechanisms. This innovative mechanical structure design does not require the high cost investment and tedious debugging of complex electronic control systems, and overcomes the problem of poor cutting accuracy caused by easy wear and deformation of traditional simple mechanical structures. It greatly improves the cutting accuracy while ensuring structural stability, and effectively solves the technical difficulties of achieving equidistant synchronous adjustment of multiple cutting points under the premise of ensuring structural stability and cutting accuracy. It provides a solid guarantee for high-quality fixed-length cutting of insulator core rods and strongly promotes the advancement of industry technology.

[0016] 2. Efficient and precise coordination of clamping and cutting: The clamping actuator realizes stable and precise clamping of the insulator core rod by the four sliders driving the clamping rods through the cooperation of the opposite spiral external threads on both sides of the double-threaded screw and the slider, combined with the transmission of the pulley and the belt ring; and in the cutting process, it closely coordinates with the lifting actuator to control the saw blade height and the reciprocating saw actuator to drive the saw blade to reciprocate; this complex and orderly collaborative working mode between multiple components greatly improves the cutting efficiency and accuracy compared to the simple cutting and fixing methods in the prior art, and is a creative improvement to the insulator core rod cutting technology.

[0017] 3. Improve cutting accuracy and quality: Since the fixed-length cutting device of the insulator core rod can accurately set and maintain the equidistant cutting position, as well as stable clamping and precise saw blade movement control, the length of the insulator core rod after cutting is highly consistent, and the incision is flat and smooth, which effectively reduces the product defective rate caused by cutting errors, improves the overall quality of the product, and meets the strict requirements of high-precision cutting of insulator core rods in the power industry and other industries.

[0018] 4. Adapt to core rods of various specifications: The arc-shaped positioning groove on the support seat and the adjustable clamping mechanism design enable it to adapt to insulator core rods of different diameters; in actual production, there is no need to frequently replace or adjust the fixed-length cutting device of the insulator core rod. Only simple operation of the clamping actuator is required to achieve reliable fixation of core rods of various specifications, which greatly improves the versatility and practicality of the device and reduces the equipment procurement and maintenance costs of the enterprise.

[0019] 5. Convenient operation and efficient production: The operation process of the fixed-length cutting device for the insulator core rod is relatively simple. The control of the equidistant telescopic mechanism and the four cutting mechanisms is realized by connecting the control box to achieve synchronous start-up and coordinated work. The operator only needs to adjust the equidistant telescopic mechanism according to the set cutting length, place the core rod and start the clamping, cutting and other actions to realize the automated fixed-length cutting process. This not only reduces the complexity and labor intensity of manual operation, but also significantly improves production efficiency, which is conducive to the large-scale industrial production of insulator core rods. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the support guide rail frame in the present invention; Figure 3 It is a structural schematic diagram of the medium-distance telescopic mechanism of the present invention; Figure 4 The structure diagram of the cutting mechanism in the present invention is shown in FIG. Figure 1 ; Figure 5 The structure diagram of the cutting mechanism in the present invention is shown in FIG. Figure 2 ; Figure 6 The structure diagram of the cutting mechanism in the present invention is shown in FIG. Figure 3 ; Figure 7 It is a schematic diagram of the lower part structure of the present invention; Figure 8 It is a structural schematic diagram of the reciprocating saw actuator in the present invention.

[0021] In the figure: 1, support rail frame; 11, support leg frame; 12, straight rail; 13, oil cylinder connection seat; 14, limit plate; 15, cylinder; 2, equidistant telescopic mechanism; 21, hydraulic cylinder; 22, diamond telescopic frame; 221, V-shaped folding rod; 222, X-shaped folding rod; 23, connecting column; 3, cutting mechanism; 31, cross seat; 32, support seat; 33, side table; 34, slide seat; 35, fine-toothed saw blade; 36, lifting actuator; 361, fixed table; 362, electric push cylinder; 363, first guide 364, the second guide column; 365, the lifting frame; 366, the connecting frame; 37, the reciprocating saw actuator; 371, the first reduction motor; 372, the disc; 373, the pull rod; 374, the saw blade connecting seat; 375, the rotating rod; 376, the guide wheel; 377, the guide seat; 38, the clamping actuator; 381, the double-threaded screw; 382, ​​the slider; 383, the external thread; 384, the second reduction motor; 385, the clamping rod; 386, the pulley; 387, the belt loop; 39, the cutting seam. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0023] like Figure 1-Figure 8 As shown, a fixed-length cutting device for insulator core rods includes a support guide frame 1, an equidistant telescopic mechanism 2 and four equidistantly arranged cutting mechanisms 3. The four cutting mechanisms 3 are equidistantly telescopically and slidably installed above the support guide frame 1 through the equidistant telescopic mechanism 2.

[0024] refer to Figure 2 It can be seen that the general structure and appearance of the support guide rail frame 1 are that the support guide rail frame 1 is mainly composed of a support leg frame 11 and two parallel straight rails 12. The straight rail 12 is made of high-strength aluminum alloy, with a length of 2000mm and a width of 50mm. The two straight rails 12 are respectively fixedly installed on both sides of the top of the support leg frame 11, and are mainly used to guide the four cutting mechanisms 3 on the two straight rails 12 to move linearly. A limit plate 14 is vertically fixedly installed on the upper left side of the two straight rails 12 in the support guide rail frame 1, and a cylinder 15 is fixedly installed below the limit plate 14, and the left end of the support leg frame 11 in the support guide rail frame 1 is fixedly connected to a cylinder connecting seat 13.

[0025] refer to Figure 3 It can be seen that the general structure and appearance of the equidistant telescopic mechanism 2 are that the equidistant telescopic mechanism 2 is mainly composed of a hydraulic cylinder 21 and a diamond-shaped telescopic frame 22. The diamond-shaped telescopic frame 22 is installed parallel to the top of the hydraulic cylinder 21. The outer cylinder in the hydraulic cylinder 21 is fixedly installed in the cylinder connecting seat 13. The piston rod in the hydraulic cylinder 21 is set to the left, and the left end of the piston rod in the hydraulic cylinder 21 is connected to the left end of the diamond-shaped telescopic frame 22. The support seats 32 in the four cutting mechanisms 3 are respectively and equidistantly arranged on the diamond-shaped telescopic frame 22.

[0026] refer to Figure 3It can be seen that the general structure and appearance of the diamond telescopic frame 22, the diamond telescopic frame 22 is mainly composed of eight X-shaped folding rods 222 and two V-shaped folding rods 221, wherein the X-shaped folding rods 222 and the V-shaped folding rods 221 are made of high-quality carbon structural steel, with a rod length of 300mm and a diameter of 20mm to ensure sufficient strength and stability, the two corners of the eight X-shaped folding rods 222 are arranged in a straight line in sequence, and the two corners of the two adjacent X-shaped folding rods 222 are rotatably connected, the two ends of the openings in the two V-shaped folding rods 221 are respectively connected to the remaining two corners of the two X-shaped folding rods 222 on the two sides, and the eight X-shaped folding rods 222 and the two V-shaped folding rods 221 are connected to the remaining two corners of the two X-shaped folding rods 222 on the two sides. Nine diamond structures connected in sequence are formed between 21, the cylinder 15 at the left end of the supporting guide frame 1 is rotatably installed on the rotating point in the middle of the first X-shaped folding rod 222 on the left, the supporting seats 32 in the four cutting mechanisms 3 are respectively rotatably installed on the rotating point in the middle of the third X-shaped folding rod 222 from the left, the rotating point in the middle of the fifth X-shaped folding rod 222, the rotating point in the middle of the seventh X-shaped folding rod 222 and the rotating point in the middle of the V-shaped folding rod 221 on the right, and a connecting column 23 is coaxially rotatably connected below the rotating point in the middle of the first V-shaped folding rod 221 on the left, and the lower part of the connecting column 23 is fixedly connected to the left end of the piston rod in the hydraulic cylinder 21.

[0027] It should be noted that the reference Figure 3 When the piston rod in the hydraulic cylinder 21 is extended and retracted, the piston rod in the hydraulic cylinder 21 can drive the left side of the first diamond structure on the left side of the diamond telescopic frame 22 to move closer to or away from the cylinder 15, and perform left and right telescopic deformation. The first telescopically deformed diamond structure is sequentially driven by eight X-shaped folding rods 222 to sequentially drive the remaining eight diamond structures and the first diamond structure to be extended and retracted simultaneously, so that the distance between the limit plate 14 and the first support seat 32 on the left and the distance between the four support seats 32 can always be kept consistent. The straight rail 12 and the slide seat 34 need to be cleaned and lubricated regularly, and the sealing and oil status of the hydraulic cylinder 21 need to be checked regularly, and the hydraulic oil should be replaced every 500 working hours.

[0028] refer to Figure 4It can be seen that the general shape and structure of the cutting mechanism 3 are mainly composed of a horizontal seat 31, a support seat 32, two side platforms 33, two slide seats 34, a fine-toothed saw blade 35, a lifting actuator 36, a reciprocating saw actuator 37 and a clamping actuator 38. A cutting slit 39 is arranged in the middle of the support seat 32. The cutting slit 39 is arranged just below the fine-toothed saw blade 35 in the cutting mechanism 3, that is, the fine-toothed saw blade 35 can cut downward through the insulator core rod. The fine-toothed saw blade 35 is made of cemented carbide and has high hardness and wear resistance to ensure effective cutting of the insulator core rod. The fine-toothed saw blade 35 also needs to be regularly inspected and replaced in time according to the wear condition. Generally, when the saw blade tooth tip is worn by more than 20%, it should be replaced. The two side platforms 33 are symmetrically fixed and installed respectively. Installed at both ends of the cross seat 31, the two slides 34 are fixedly installed under the two side platforms 33 respectively, the lower parts of the two slides 34 are slidably installed on the two straight rails 12 respectively, the lower part of the cutting mechanism 3 is slidably installed on the two straight rails 12 on the support guide frame 1 through the two slides 34, the support seat 32 is fixedly installed on the middle end of the cross seat 31, and the upper surface of the support seat 32 is provided with an arc-shaped positioning groove for supporting the insulator core rod. The radius of the arc-shaped positioning groove is 25mm and the depth is 15mm. A first rubber pad is fitted on the inner wall of the arc-shaped positioning groove at the top of the support seat 32. The fine-toothed saw blade 35 is installed on the upper part of the cross seat 31 through the lifting actuator 36 and the reciprocating saw actuator 37, and the clamping actuator 38 is installed on the lower end of the cutting mechanism 3.

[0029] refer to Figure 4 , Figure 5 and Figure 6It can be seen that the general shape and structure of the clamping actuator 38 are that the clamping actuator 38 is mainly composed of two mutually parallel double-threaded screws 381, four sliders 382, ​​a second reduction motor 384, two pulleys 386 and a belt ring 387. The two double-threaded screws 381 are respectively and symmetrically installed on both sides of the cross seat 31, and the two sides of the double-threaded screw 381 are symmetrically provided with external threads 383 with opposite spiral modes. The four sliders 382 are respectively threadedly installed on the four external threads 383 on the two double-threaded screws 381, and the intersection of the oblique lines between the four sliders 382 and the center point of the support seat 32 are on the same vertical straight line. The two ends of the double-threaded screw 381 are respectively rotatably connected to the two side platforms 33, and the two pulleys 386 are coaxially fixedly installed on the two At one end of the double-threaded screw 381, the inner ring of the belt ring 387 is respectively squeezed and meshed with the periphery of the two pulleys 386, the second reduction motor 384 is fixedly connected to the outer end face of a side platform 33, the output shaft of the second reduction motor 384 is coaxially fixedly connected to one end of a double-threaded screw 381 through a coupling, the four sliders 382 are respectively installed on both sides of the cross seat 31 through a plurality of pulleys for linear sliding, and the four sliders 382 are respectively fixedly installed with a clamping rod 385 inclined at 45°, the two clamping rods 385 on the same double-threaded screw 381 are staggered with each other, and a second rubber pad is fixedly installed on the inclined surface below the clamping rod 385, and a triangular structure can be formed between the two clamping rods 385 on the double-threaded screw 381 and the support seat 32.

[0030] Further explanation is that, reference Figure 4 , Figure 5 and Figure 6 When the output shaft of the second reduction motor 384 rotates forward or reverse, the directly connected double-threaded screw 381 rotates, and then the two connected pulleys 386 and belt rings 387 are used to ensure that the two double-threaded screws 381 rotate simultaneously, thereby driving the left and right sliders 382 to move synchronously in the opposite direction along the side walls of the cross seat 31. If the complete insulator core rod is placed in the arc-shaped positioning groove at the top of the support seat 32, and the four sliders 382 on the left and right sides are gathered together close to the support seat 32 at the same time, so that the clamping rods 385 on the four sliders 382 cross each other, the four clamping rods 385 on both sides of the support seat 32 are respectively clamped and installed on the upper two sides of the insulator core rod. If the two sliders 382 on the double-threaded screw 381 move in the opposite direction at the same time and move away from each other, they are close to the two side platforms 33 on both sides, so that the top distance between the two clamping rods 385 on the double-threaded screw 381 can be greater than the diameter of the insulator core rod.

[0031] refer to Figure 4 and Figure 8It can be seen that the general structure and appearance of the lifting actuator 36 are that the lifting actuator 36 is mainly composed of a fixed platform 361, an electric push cylinder 362, four first guide columns 363 and a lifting frame 365. The fine-toothed saw blade 35 is installed in parallel below the lifting frame 365. The lower ends of the four first guide columns 363 are respectively and vertically fixedly installed on the two side platforms 33. The four corners below the fixed platform 361 are respectively and vertically fixedly installed on the tops of the four first guide columns 363. The four corners of the lifting frame 365 are respectively and liftingly slidably installed on the four first guide columns 363. The shell of the electric push cylinder 362 is vertically fixedly installed above the fixed platform 361. The push rod in the electric push cylinder 362 is vertically arranged downward. , and a connecting frame 366 is fixedly installed at the end of the push rod in the electric push cylinder 362, and the bottom of the connecting frame 366 is fixedly installed on the top of the lifting frame 365. It can be seen that when the push rod in the electric push cylinder 362 is vertically extended and retracted, the connecting frame 366 is used to drive the fine-toothed saw blade 35 below the lifting frame 365 to move up and down, approaching or moving away from the insulator core rod placed on the support seat 32. One side of the side platform 33 is also fixedly connected to a second guide column 364 for guiding the reciprocating saw actuator 37. One side of the first reduction motor 371 in the reciprocating saw actuator 37 is lifted and slidably installed on the second guide column 364, and the first reduction motor 371 and the lifting frame 365 are fixedly connected.

[0032] refer to Figure 5 and Figure 8 It can be seen that the general structure and appearance of the reciprocating saw actuator 37 are mainly composed of a first reduction motor 371, a disc 372, a rotating rod 375, a pull rod 373 and a saw blade connecting seat 374. The output shaft of the first reduction motor 371 is coaxially connected to one side of the disc 372 through a coupling, one end of the rotating rod 375 is connected to the edge of one side of the disc 372, and the other end of the rotating rod 375 is connected to the head end of the pull rod 373. A guide seat 377 is fixedly installed on the upper side of the lifting frame 365, and the outer wall of the pull rod 373 slides through the guide seat 377. The pull rod 373 passes through the inner cavity of the connecting frame 366, and the fine-toothed saw blade 35 It is fixedly installed below the saw blade connecting seat 374, and a number of guide wheels 376 are rotatably installed on both sides of the saw blade connecting seat 374. The guide wheels 376 are horizontally slidably installed on both sides of the lifting frame 365. It can be seen from the above that the reciprocating saw actuator 37 is synchronously lifted and lowered following the lifting frame 365 in the lifting actuator 36. When the output shaft in the first reduction motor 371 rotates, the output shaft of the first reduction motor 371 will drive the disc 372 to rotate rapidly, and then the rotating rod 375 drives the pull rod 373 to reciprocate along the guide seat 377, which is used to pull the fine-toothed saw blade 35 below the saw blade connecting seat 374 back and forth to cut the insulator core rod.

[0033] It should be added that the electric push cylinder 362, the first reduction motor 371 and the second reduction motor 384 in the four cutting mechanisms 3 are connected to a control box through wires, the control box is connected to a main power supply, and the four electric push cylinders 362, the first reduction motor 371 or the second reduction motor 384 in the four cutting mechanisms 3 are started synchronously. A programmable logic controller is arranged in the control box, and the operator can input the required cutting parameters, such as cutting length, cutting speed and other information, through the human-computer interaction interface on the control box. After the cutting length parameter is input, the programmable logic controller will calculate the piston rod extension stroke of the hydraulic cylinder 21 in the equidistant telescopic mechanism 2 according to the preset program, and then control the movement of the hydraulic cylinder 21, accurately adjust the shape of the diamond telescopic frame 22, so that the four cutting mechanisms 3 are in the predetermined equidistant cutting position. When starting the cutting operation, the operator clicks the start button on the human-computer interaction interface, and the programmable logic controller will simultaneously send to the electric push cylinders 362 of the four cutting mechanisms 3 The signal causes its push rod to extend at the set speed and stroke, driving the fine-toothed saw blade 35 under the lifting frame 365 to descend to a suitable cutting height. Subsequently, the programmable logic controller synchronously starts the first reduction motor 371 of the four cutting mechanisms 3. The first reduction motor 371 drives the disc 372 to rotate, and drives the fine-toothed saw blade 35 under the saw blade connecting seat 374 to reciprocate along the guide seat 377 through the rotating rod 375 and the pulling rod 373 to cut the insulator core rod. In addition, when the insulator core rod is placed and prepared for clamping, the programmable logic controller can also synchronously control the second reduction motor 384 of the clamping actuator 38 in the four cutting mechanisms 3 to move, so that the double-threaded screw 381 rotates, and the four sliders 382 drive the clamping rod 385 to accurately clamp the insulator core rod through the transmission of the pulley 386 and the belt ring 387. Through this centralized control and synchronous coordination method, it is ensured that the entire cutting device can efficiently and accurately complete the fixed-length cutting task of the insulator core rod.

[0034] The process of equidistant cutting of the insulator core rod according to the present invention is as follows: First, according to the required cutting length, the hydraulic cylinder 21 of the equidistant telescopic mechanism 2 is started, and the piston rod of the hydraulic cylinder 21 is extended and retracted to drive the diamond-shaped telescopic frame 22 to perform telescopic deformation. Due to the structural characteristics of the diamond-shaped telescopic frame 22, the distance between the limit plate 14 and the first support seat 32 on the left and the distance between the four support seats 32 are adjusted to a predetermined equidistant state to determine the cutting position of the insulator core rod.

[0035] Then, the insulator core rod is placed in the arc-shaped positioning groove at the top of the four support seats 32 in the four cutting mechanisms 3, and one end of the insulator core rod is placed against the limit plate 14 on the support guide frame 1, and then the second reduction motor 384 of the clamping actuator 38 in the four cutting mechanisms 3 is started at the same time. The second reduction motor 384 drives the double-threaded screw 381 to rotate, and the two double-threaded screws 381 are rotated at the same time through the transmission of the pulley 386 and the belt ring 387, thereby driving the four sliders 382 to move synchronously in the opposite direction along the side wall of the cross seat 31, so that the clamping rods 385 on the four sliders 382 cross each other and the four clamping rods 385 on both sides of the support seat 32 respectively clamp the upper sides of the insulator core rod.

[0036] Next, the electric push cylinder 362 of the cutting mechanism 3 is started, and the push rod of the electric push cylinder 362 drives the fine-toothed saw blade 35 below the lifting frame 365 to descend through the connecting frame 366 and approach the insulator core rod to a suitable cutting height.

[0037] Finally, the first reduction motor 371 of the reciprocating saw actuator 37 is started. The first reduction motor 371 drives the disc 372 to rotate. The disc 372 drives the fine-toothed saw blade 35 under the saw blade connecting seat 374 to reciprocate along the guide seat 377 through the rotating rod 375 and the pull rod 373 to cut the insulator core rod. The four cutting mechanisms 3 work synchronously to achieve equidistant cutting of the insulator core rod.

[0038] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A device for cutting insulator core rods to a fixed length, characterized in that: It comprises a support rail frame (1), an equidistant telescopic mechanism (2), and four equidistantly arranged cutting mechanisms (3), wherein the four cutting mechanisms (3) are equidistantly telescopically and slidably mounted above the support rail frame (1) through the equidistant telescopic mechanism (2); The support guide rail frame (1) is mainly composed of a support leg frame (11) and two mutually parallel straight rails (12), the two straight rails (12) are respectively fixedly mounted on both sides of the top of the support leg frame (11), a limit plate (14) is vertically fixedly mounted above the left side of the two straight rails (12) in the support guide rail frame (1), a cylinder (15) is fixedly mounted below the limit plate (14), and the left end of the support leg frame (11) in the support guide rail frame (1) is fixedly connected to a cylinder connecting seat (13); The equidistant telescopic mechanism (2) comprises a hydraulic cylinder (21) and a rhombus-shaped telescopic frame (22); the rhombus-shaped telescopic frame (22) comprises eight X-shaped folding rods (222) and two V-shaped folding rods (221) forming nine rhombus-shaped structures connected in sequence; the outer cylinder in the hydraulic cylinder (21) is fixedly mounted in the cylinder connecting seat (13); the piston rod in the hydraulic cylinder (21) is arranged to face left, and the left end of the piston rod in the hydraulic cylinder (21) is connected to the left end of the rhombus-shaped telescopic frame (22); The cutting mechanism (3) comprises a support seat (32), the support seats (32) in the four cutting mechanisms (3) are respectively arranged on the rhombus telescopic frame (22) at equal distances, and the support seats (32) in the four cutting mechanisms (3) are respectively rotatably mounted on the middle rotation point of the third X-shaped folding rod (222) from the left, the middle rotation point of the fifth X-shaped folding rod (222), the middle rotation point of the seventh X-shaped folding rod (222) and the middle rotation point of the right V-shaped folding rod (221), and a connecting column (23) is coaxially rotatably connected below the middle rotation point of the left V-shaped folding rod (221), and the lower part of the connecting column (23) is fixedly connected to the left end of the piston rod in the hydraulic cylinder (21).

2. The device for cutting insulator core rods to fixed length according to claim 1, characterized in that: The cutting mechanism (3) is mainly composed of a cross seat (31), a support seat (32), two side platforms (33), two slide seats (34), a fine-toothed saw blade (35), a lifting actuator (36), a reciprocating saw actuator (37) and a clamping actuator (38). The two side platforms (33) are symmetrically fixedly installed at the two ends of the cross seat (31), the two slide seats (34) are fixedly installed at the bottom of the two side platforms (33), the bottoms of the two slide seats (34) are slidably installed on two straight rails (12), the support seat (32) is fixedly installed at the middle end of the cross seat (31), the fine-toothed saw blade (35) is installed on the top of the cross seat (31) through the lifting actuator (36) and the reciprocating saw actuator (37), and the clamping actuator (38) is installed at the lower end of the cutting mechanism (3).

3. The device for cutting insulator core rods to fixed length according to claim 2, characterized in that: The clamping actuator (38) is mainly composed of two mutually parallel double-threaded screws (381), four sliders (382), a second reduction motor (384), two pulleys (386) and a belt ring (387). The two double-threaded screws (381) are respectively and symmetrically installed on the two sides of the cross seat (31). The two sides of the double-threaded screw (381) are symmetrically provided with external threads (383) with opposite spiral patterns. The four sliders (382) are respectively threadedly installed on the four external threads (383) on the two double-threaded screws (381), and the intersection of the oblique lines between the four sliders (382) and the center point of the support seat (32) are on the same vertical straight line. The two ends of the double-threaded screw (381) are respectively connected to the two side platforms (3 3) Rotational connection, the two pulleys (386) are coaxially fixedly installed on one end of the two double-threaded screws (381), the inner rings of the belt rings (387) are respectively squeezed and meshed with the outer peripheries of the two pulleys (386), the second reduction motor (384) is fixedly connected to the outer end surface of a side platform (33), the output shaft of the second reduction motor (384) is coaxially fixedly connected to one end of a double-threaded screw (381) through a coupling, the four sliders (382) are respectively linearly slidably installed on both sides of the cross seat (31) through a plurality of pulleys, and the four sliders (382) are respectively fixedly installed with clamping rods (385) in an inclined state, and the two clamping rods (385) on the double-threaded screw (381) are staggered with each other.

4. The device for cutting insulator core rods to fixed length according to claim 2, characterized in that: The lifting actuator (36) is mainly composed of a fixed platform (361), an electric push cylinder (362), four first guide columns (363) and a lifting frame (365); the fine-toothed saw blade (35) is installed in parallel below the lifting frame (365); the lower ends of the four first guide columns (363) are respectively vertically fixedly installed on the two side platforms (33); the four corners below the fixed platform (361) are respectively vertically fixedly installed on the top ends of the four first guide columns (363); the four corners of the lifting frame (365) are respectively lifted and slidably installed on the four first guide columns (363); the shell in the electric push cylinder (362) is vertically fixedly installed above the fixed platform (361); the push rod in the electric push cylinder (362) is vertically arranged downward; and a connecting frame (366) is fixedly installed at the end of the push rod in the electric push cylinder (362); and the bottom of the connecting frame (366) is fixedly installed on the top end of the lifting frame (365).

5. The device for cutting insulator core rods to fixed length according to claim 4, characterized in that: The reciprocating saw actuator (37) is mainly composed of a first reduction motor (371), a disc (372), a rotating rod (375), a pull rod (373) and a saw blade connecting seat (374). The first reduction motor (371) is fixedly connected to the lifting frame (365). The output shaft of the first reduction motor (371) is coaxially connected to one side of the disc (372) through a coupling. One end of the rotating rod (375) is connected to the edge of one side of the disc (372). The other end of the rotating rod (375) is connected to the head end of the pull rod (373). The pull rod (373) passes through the inner cavity of the connecting frame (366). The fine-toothed saw blade (35) is fixedly installed below the saw blade connecting seat (374). A plurality of guide wheels (376) are rotatably installed on both sides of the saw blade connecting seat (374). The plurality of guide wheels (376) are horizontally slidably installed on both sides of the lifting frame (365).

6. The device for cutting insulator core rods to fixed length according to claim 5, characterized in that: The electric push cylinders (362) and the first reduction motor (371) in the four cutting mechanisms (3) are connected to a control box via wires, and the control box is connected to a main power supply.

7. The device for cutting insulator core rods to fixed length according to claim 2, characterized in that: The upper surface of the support seat (32) is provided with an arc-shaped positioning groove for supporting and placing an insulator core rod, and a first rubber pad is fittedly mounted on the inner wall of the arc-shaped positioning groove at the top end of the support seat (32).

8. The device for cutting insulator core rods to fixed length according to claim 3, characterized in that: A second rubber pad is fixedly mounted on the inclined surface below the clamping rod (385), and a triangular structure can be formed between the two clamping rods (385) on the double-threaded screw (381) and the support seat (32).

9. The device for cutting insulator core rods to fixed length according to claim 5, characterized in that: A second guide column (364) for guiding a reciprocating saw actuator (37) is also fixedly connected to one side of the side platform (33), and one side of a first reduction motor (371) in the reciprocating saw actuator (37) is lifted and slidably mounted on the second guide column (364).

10. The device for cutting insulator core rods to fixed length according to claim 5, characterized in that: A guide seat (377) is fixedly mounted on the upper side of one side of the lifting frame (365), and the outer wall of the pull rod (373) slides through the guide seat (377).

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