Cutting wire follow-up guide device with straight shaft connecting rod transmission structure

Abstract

The utility model provides a cutting wire follow-up guide device with a straight shaft connecting rod transmission structure, which comprises an upper straight shaft transmission component, an upper follow-up wire guide component, a lower straight shaft transmission component, a lower follow-up wire guide component, a middle vertical shaft switching component, an upper connecting rod transmission component and a lower connecting rod transmission component, according to the cutting wire follow-up guide device, the upper follow-up wheel and the upper wire seat are arranged in the upper wire seat, so that a cutting wire between the upper wire nozzle and the upper follow-up wheel is kept in a constant state, and the lower follow-up wheel and the lower wire seat are arranged in the lower wire seat, so that the cutting wire between the lower wire nozzle and the lower follow-up wheel is kept in a constant state; the upper core shaft, the upper connector, the transmission upper rod and the upper screw seat enclose to form a parallelogram frame structure, and the lower core shaft, the lower connector, the transmission lower rod and the lower screw seat enclose to form a parallelogram frame structure, so that all the components move synchronously, the stability of the cutting process is guaranteed, and the cutting precision is improved.

Description

Technical Field

[0001] The utility model relates to wire electrical discharge machining equipment, in particular to a cutting wire follow-up guiding device with a straight-axis connecting rod transmission structure. Background Art

[0002] Patent document CN212264781U discloses a wire cutting equipment, which includes a base, a bidirectional sliding workbench, a wire feeding mechanism and a clamping mechanism. The wire feeding mechanism includes a supporting seat, an upper wire frame and a lower wire frame fixedly arranged on the base. A wire cylinder and a wire cylinder motor are arranged on the supporting seat. A cutting wire is wound around the wire cylinder. One end of the cutting wire is fixedly arranged on the wire cylinder, and the other end is wound around the wire cylinder for several turns and then passes through the upper wire frame and the lower wire frame and is fixedly arranged on the wire cylinder. The clamping mechanism includes a three-jaw chuck and a driving motor for driving the three-jaw chuck to rotate. The driving motor is fixedly arranged above the bidirectional sliding workbench through a bracket, and can firmly clamp the amorphous block on the positioning fixture, and can process the axially amorphous motor iron core with a complex shape. However, the cutting wire guiding structure adopted by this cutting equipment has poor flexibility and cannot be adaptively adjusted according to the change of the workpiece shape, so that the cutting accuracy cannot be guaranteed. Therefore, it is necessary to optimize its structure to overcome the above defects. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a cutting wire follow-up guiding device with a straight-axis connecting rod transmission structure to improve its processing flexibility and processing accuracy.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A cutting wire follow-up guiding device with a straight-axis connecting rod transmission structure, which includes:

[0006] An upper straight-axis transmission component, which is installed on the taper adjustment mechanism of the cutting machine tool and can move together with the taper adjustment mechanism;

[0007] An upper follow-up wire guiding component, which is installed on the upper straight-axis transmission component, can move together with the upper group of straight-axis transmission components, and can move independently in the upper straight-axis transmission component;

[0008] A lower straight-axis transmission component, which is installed on the wire feeding and bearing mechanism of the cutting machine tool and corresponds to the position of the upper straight-axis transmission component, and can move together with the wire feeding and bearing mechanism;

[0009] Lower follower wire guide assembly, which is installed on the lower direct-axis drive assembly and corresponds to the upper follower wire guide assembly in position. It can move together with the lower direct-axis drive assembly and can move independently within the lower direct-axis drive assembly. The lower follower wire guide assembly and the upper follower wire guide assembly guide the cutting wire;

[0010] Middle vertical-axis adapter assembly, which cooperates with the upper direct-axis drive assembly and the lower direct-axis drive assembly. The upper direct-axis drive assembly can drive the lower direct-axis drive assembly to move through the middle vertical-axis adapter assembly;

[0011] Upper connecting rod drive assembly, which cooperates with the middle vertical-axis adapter assembly and the upper follower wire guide assembly. When the middle vertical-axis adapter assembly moves, it drives the upper follower wire guide assembly to move through the upper connecting rod drive assembly;

[0012] Lower connecting rod drive assembly, which cooperates with the middle vertical-axis adapter assembly and the lower follower wire guide assembly. When the middle vertical-axis adapter assembly moves, it drives the lower follower wire guide assembly to move through the lower connecting rod drive assembly.

[0013] Among them, the wire transporting and bearing mechanism is installed on the machine tool base through a horizontal slide rail and can move horizontally on the machine tool base. The taper adjusting mechanism is installed on the wire transporting and bearing mechanism through a vertical slide rail, can move horizontally together with the wire transporting and bearing mechanism, and can move independently vertically, horizontally and longitudinally on the wire transporting and bearing mechanism.

[0014] Specifically, the upper direct-axis drive assembly includes:

[0015] Upper branch pipe, which extends horizontally and is connected to the taper adjusting mechanism. The taper adjusting mechanism drives the upper branch pipe to adjust its position;

[0016] Upper mandrel, which is located inside the upper branch pipe. Its axis coincides with the axis of the upper branch pipe. Its two ends are respectively installed in the upper branch pipe through bearings and can deflect in the upper branch pipe.

[0017] The upper follower wire guide assembly includes:

[0018] Upper guide seat, which engages with the outer end of the upper mandrel and can deflect together with the upper mandrel;

[0019] Upper guide block, which is installed on the side wall of the upper guide seat through an adjusting bolt. Its cross-section is oval, and its major axis extends horizontally. The power supply system is electrically connected to the upper guide block through a wire;

[0020] Upper fixed pulley, which is installed in the upper guide seat through a rotating shaft and corresponds to the upper guide block in position;

[0021] The upper wire seat, the middle part of which is installed on the upper support plate through an axle rod, can be deflected on the upper support plate, the upper support plate is installed on the side wall of the upper guide seat, can be deflected with the upper guide seat, and a gap is formed between the upper wire seat and the upper guide seat, the deflection axes of the upper guide seat and the upper wire seat are perpendicular to each other, an upper follower wheel is set at the top of the upper wire seat through a rotating shaft, and an upper wire nozzle for cutting wire to pass through is provided at the bottom end, the upper wire nozzle and the upper follower wheel can be deflected with the upper wire seat, so that the cutting wire between the upper wire nozzle and the upper follower wheel remains in a constant state.

[0022] The lower direct shaft drive assembly includes:

[0023] A lower branch pipe, which extends in the transverse direction and is connected to the wire carrying mechanism, and the taper adjustment mechanism drives the lower branch pipe to adjust its position;

[0024] The lower mandrel is located inside the lower branch pipe, and its axis coincides with the axis of the lower branch pipe. Both ends of the lower mandrel are respectively installed in the lower branch pipe through bearings and can be deflected in the lower branch pipe.

[0025] The lower follower guidewire assembly includes:

[0026] A lower guide seat, which is engaged with the outer end of the lower mandrel and can deflect along with the lower mandrel;

[0027] A lower guide block, which is mounted on the side wall of the lower guide seat by means of an adjusting bolt, has an elliptical cross section, and has a major axis extending in the transverse direction, and a power supply system is electrically connected to the lower guide block through a line;

[0028] A lower fixed wheel, which is installed in the upper guide seat through a rotating shaft and corresponds to the position of the lower guide block;

[0029] The lower wire seat, the middle part of which is installed on the lower support plate through an axis rod, can be deflected on the lower support plate, the lower support plate is installed on the side wall of the lower guide seat, can be deflected with the lower guide seat, and a gap is formed between the lower wire seat and the lower guide seat, the deflection axes of the lower guide seat and the lower wire seat are perpendicular to each other, a lower follower wheel is set at the bottom end of the lower wire seat through a rotating shaft, and a lower wire nozzle for cutting wire to pass through is set at the top end, the lower wire nozzle and the lower follower wheel can be deflected with the lower wire seat, so that the cutting wire between the lower wire nozzle and the lower follower wheel remains in a constant state.

[0030] The middle vertical axis adapter assembly includes:

[0031] An upper joint, which is mounted on the inner end of the upper mandrel through a longitudinal rotating shaft and extends below the upper mandrel, and can deflect with the upper mandrel and can deflect independently on the upper mandrel;

[0032] Lower joint, which is installed at the inner end of the lower mandrel through a longitudinal rotating shaft and extends upward above the lower mandrel. It can deflect together with the lower mandrel and can deflect independently on the lower mandrel.

[0033] Adapter coupling, the top of which is in sliding sleeve fit with the upper joint, and its bottom is fixedly joined with the lower joint. When the upper branch pipe adjusts its position with the taper adjustment assembly, the lower joint and the lower mandrel are driven to adjust their positions through the upper joint and the adapter coupling.

[0034] The upper link drive assembly includes:

[0035] Upper drive rod, one end of which is joined to the middle of the upper joint through a longitudinal rotating shaft, and the other end of which is joined to the bottom of the upper wire seat through a longitudinal rotating shaft. A parallelogram frame structure is formed by the upper mandrel, the upper joint, the upper drive rod and the upper wire seat, so that the upper wire seat can deflect synchronously with the upper joint.

[0036] The lower link drive assembly includes:

[0037] Lower drive rod, one end of which is joined to the middle of the lower joint through a longitudinal rotating shaft, and the other end of which is joined to the top of the lower wire seat through a longitudinal rotating shaft. A parallelogram frame structure is formed by the lower mandrel, the lower joint, the lower drive rod and the lower wire seat, so that the lower wire seat can deflect synchronously with the lower joint.

[0038] When the upper wire seat and the lower wire seat deflect, the cutting wire passing between the upper wire nozzle and the lower wire nozzle forms different tapers, which is convenient for cutting the workpiece.

[0039] The advantages of the present utility model are as follows:

[0040] In the cutting wire follow-up guiding device, an upper follow-up wheel and an upper wire seat are arranged in the upper wire seat. The upper wire nozzle and the upper follow-up wheel can deflect together with the upper wire seat, so that the cutting wire between the upper wire nozzle and the upper follow-up wheel remains in a constant state. A lower follow-up wheel and a lower wire seat are arranged in the lower wire seat. The lower wire nozzle and the lower follow-up wheel can deflect together with the lower wire seat, so that the cutting wire between the lower wire nozzle and the lower follow-up wheel remains in a constant state. The cutting wire between the upper wire nozzle and the lower wire nozzle cuts the workpiece. A parallelogram frame structure is formed by the upper mandrel, the upper joint, the upper drive rod and the upper wire seat, so that the upper wire seat can deflect synchronously with the upper joint. A parallelogram frame structure is formed by the lower mandrel, the lower joint, the lower drive rod and the lower wire seat, so that the lower wire seat can deflect synchronously with the lower joint, enabling the movements of all components to be synchronous, ensuring the stability of the cutting process, and being beneficial to improving the cutting accuracy. Description of the Drawings

[0041] Figure 1This is one of the structural schematic diagrams of the cutting wire follower guide device with a straight-axis connecting rod transmission structure proposed by the utility model;

[0042] Figure 2 This is the second structural schematic diagram of the follow-up guide device. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. The components of the embodiment of the utility model generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents the selected embodiment of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0044] like Figure 1 , Figure 2 As shown, the cutting wire following guide device with a straight-axis connecting rod transmission structure proposed by the utility model comprises an upper straight-axis transmission assembly, an upper following wire guide assembly, a lower straight-axis transmission assembly, a lower following wire guide assembly, a middle vertical axis adapter assembly, an upper connecting rod transmission assembly and a lower connecting rod transmission assembly. The upper straight-axis transmission assembly is installed on the taper adjustment mechanism of the cutting machine and can move with the taper adjustment mechanism. The upper following wire guide assembly is installed on the upper straight-axis transmission assembly and can move with the upper straight-axis transmission assembly and can move independently in the upper straight-axis transmission assembly. The lower straight-axis transmission assembly is installed on the wire carrying mechanism of the cutting machine and corresponds to the position of the upper straight-axis transmission assembly and can move with the wire carrying mechanism. The lower following wire guide assembly is installed on the lower straight-axis transmission assembly and corresponds to the position of the upper straight-axis transmission assembly. The position of the upper follower wire guide assembly corresponds to that of the lower straight shaft transmission assembly, which can move together with the lower straight shaft transmission assembly, and can move independently in the lower straight shaft transmission assembly, the lower follower wire guide assembly and the upper follower wire guide assembly guide the cutting wire, the middle vertical shaft adapter assembly cooperates with the upper straight shaft transmission assembly and the lower straight shaft transmission assembly, the upper straight shaft transmission assembly can drive the lower straight shaft transmission assembly to move through the middle vertical shaft adapter assembly, the upper connecting rod transmission assembly cooperates with the middle vertical shaft adapter assembly and the upper follower wire guide assembly, when the middle vertical shaft adapter assembly moves, the upper follower wire guide assembly is driven to move through the upper connecting rod transmission assembly, the lower connecting rod transmission assembly cooperates with the middle vertical shaft adapter assembly and the lower follower wire guide assembly, when the middle vertical shaft adapter assembly moves, the lower follower wire guide assembly is driven to move through the lower connecting rod transmission assembly.

[0045] Among them, the wire carrier mechanism is installed on the machine tool base through a horizontal slide rail and can move horizontally on the machine tool base. The taper adjustment mechanism is installed on the wire carrier mechanism through a vertical slide rail, can move horizontally together with the wire carrier mechanism, and can move independently vertically, horizontally, and longitudinally on the wire carrier mechanism.

[0046] In this embodiment, the upper straight shaft transmission assembly includes an upper branch pipe 110 and an upper core shaft 120. The upper branch pipe extends horizontally and is connected to the taper adjustment mechanism. The position of the upper branch pipe is adjusted by the taper adjustment mechanism. The upper core shaft is located inside the upper branch pipe, and its axis coincides with the axis of the upper branch pipe. Both ends of the upper core shaft are respectively installed in the upper branch pipe through bearings and can deflect in the upper branch pipe.

[0047] The upper follower wire guiding assembly includes an upper guide seat 210, an upper guide block 220, an upper fixed pulley 230, and an upper wire seat 240. The upper guide seat is joined to the outer end of the upper core shaft and can deflect together with the upper core shaft. The upper guide block is installed on the side wall of the upper guide seat through an adjusting bolt. Its cross-section is oval, and its major axis extends horizontally. The power supply system is electrically connected to the upper guide block through a wire. The upper fixed pulley is installed in the upper guide seat through a rotating shaft and corresponds to the position of the upper guide block. The middle of the upper wire seat is installed on the upper support plate 250 through a shaft rod and can deflect on the upper support plate. The upper support plate is installed on the side wall of the upper guide seat and can deflect together with the upper guide seat. A gap is formed between the upper wire seat and the upper guide seat. The deflection axes of the upper guide seat and the upper wire seat are perpendicular to each other. The top end of the upper wire seat is provided with an upper follower pulley 241 through a rotating shaft, and its bottom end is provided with an upper wire nozzle 242 for the cutting wire to pass through. The upper wire nozzle and the upper follower pulley can deflect together with the upper wire seat to keep the cutting wire between the upper wire nozzle and the upper follower pulley in a constant state.

[0048] The lower straight shaft transmission assembly includes a lower branch pipe 310 and a lower core shaft 320. The lower branch pipe extends horizontally and is connected to the wire carrier mechanism. The position of the lower branch pipe is adjusted by the taper adjustment mechanism. The lower core shaft is located inside the lower branch pipe, and its axis coincides with the axis of the lower branch pipe. Both ends of the lower core shaft are respectively installed in the lower branch pipe through bearings and can deflect in the lower branch pipe.

[0049] The lower follower wire guide assembly includes a lower guide seat 410, a lower guide block 420, a lower fixed wheel 430 and a lower wire seat 440. The lower guide seat is engaged with the outer end of the lower mandrel and can deflect with the lower mandrel. The lower guide block is installed on the side wall of the lower guide seat through an adjusting bolt. Its cross section is elliptical, and its long axis extends in the transverse direction. The power supply system is electrically connected to the lower guide block through a line. The lower fixed wheel is installed in the upper guide seat through a rotating shaft and corresponds to the position of the lower guide block. The middle part of the lower wire seat is installed on the lower guide seat through a shaft. The upper support plate 450 can be deflected on the lower support plate. The lower support plate is installed on the side wall of the lower guide seat and can be deflected with the lower guide seat to form a gap between the lower wire seat and the lower guide seat. The deflection axes of the lower guide seat and the lower wire seat are perpendicular to each other. A lower follower wheel 441 is set at the bottom end of the lower wire seat through a rotating shaft, and a lower wire nozzle 442 is set at the top end for the cutting wire to pass through. The lower wire nozzle and the lower follower wheel can be deflected with the lower wire seat, so that the cutting wire between the lower wire nozzle and the lower follower wheel remains in a constant state.

[0050] The middle vertical axis adapter assembly includes an upper joint 510, a lower joint 520 and an adapter coupling 530. The upper joint is installed at the inner end of the upper core shaft through a longitudinal rotating shaft and extends to the bottom of the upper core shaft. It can deflect together with the upper core shaft and can deflect independently on the upper core shaft. The lower joint is installed at the inner end of the lower core shaft through a longitudinal rotating shaft and extends above the lower core shaft. It can deflect together with the lower core shaft and can deflect independently on the lower core shaft. The top of the adapter coupling cooperates with the upper joint through a sliding sleeve, and its bottom is fixedly engaged with the lower joint. When the upper branch pipe adjusts its position along with the taper adjustment assembly, the lower joint and the lower core shaft are driven to adjust their position through the upper joint and the adapter coupling.

[0051] The upper connecting rod transmission assembly includes a transmission upper rod 600, one end of the transmission upper rod is connected to the middle of the upper joint through a longitudinal rotating shaft, and the other end is connected to the bottom of the upper wire seat through the longitudinal rotating shaft. The upper core shaft, the upper joint, the transmission upper rod and the upper wire seat form a parallelogram frame structure, so that the upper wire seat can deflect synchronously with the upper joint.

[0052] The lower connecting rod transmission assembly includes a transmission lower rod 700, one end of the transmission lower rod is connected to the middle of the lower joint through a longitudinal rotating shaft, and the other end is connected to the top of the lower wire seat through the longitudinal rotating shaft. The lower core shaft, the lower joint, the transmission lower rod and the lower wire seat form a parallelogram frame structure, so that the lower wire seat can deflect synchronously with the lower joint.

[0053] When the upper wire seat and the lower wire seat are deflected, the cutting wire passing between the upper wire nozzle and the lower wire nozzle forms different tapers, which is convenient for cutting the workpiece.

[0054] In the description of the present utility model, it should be noted that when terms indicating orientation or positional relationship such as "upper", "lower", "inner", "outer", "left", "right", etc. appear, they should be understood as based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present utility model. In addition, when terms such as "first", "second", etc. appear, they are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance. In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, terms such as "installation", "setting", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

Claims

1. A cutting wire follower guide device with a straight shaft connecting rod transmission structure, characterized in that: include: An upper straight shaft transmission assembly, which is mounted on the taper adjustment mechanism of the cutting machine and can move with the taper adjustment mechanism; An upper follower guide wire assembly, which is mounted on the upper straight shaft transmission assembly and can move together with the upper straight shaft transmission assembly and can move independently in the upper straight shaft transmission assembly; A lower straight shaft transmission assembly, which is installed on the wire carrying mechanism of the cutting machine and corresponds to the position of the upper straight shaft transmission assembly and can move with the wire carrying mechanism; The lower follower wire guide assembly is installed on the lower straight shaft transmission assembly and corresponds to the position of the upper follower wire guide assembly. The lower follower wire guide assembly can move together with the lower straight shaft transmission assembly and can move independently in the lower straight shaft transmission assembly. The lower follower wire guide assembly and the upper follower wire guide assembly guide the cutting wire; A middle vertical shaft transfer assembly, which cooperates with the upper straight shaft transmission assembly and the lower straight shaft transmission assembly, and the upper straight shaft transmission assembly can drive the lower straight shaft transmission assembly to move through the middle vertical shaft transfer assembly; An upper connecting rod transmission assembly, which cooperates with the middle vertical shaft adapter assembly and the upper follower guide wire assembly. When the middle vertical shaft adapter assembly moves, the upper follower guide wire assembly is driven to move through the upper connecting rod transmission assembly; The lower connecting rod transmission assembly cooperates with the middle vertical axis adapter assembly and the lower follower guide wire assembly. When the middle vertical axis adapter assembly moves, the lower follower guide wire assembly is driven to move through the lower connecting rod transmission assembly.

2. The cutting wire follower guide device with a straight-axis connecting rod transmission structure according to claim 1, characterized in that: The upper direct shaft drive assembly includes: An upper branch pipe, which extends in the transverse direction and is connected to a taper adjustment mechanism, and the taper adjustment mechanism drives the upper branch pipe to adjust its position; The upper core shaft is located inside the upper branch pipe, the axis of the upper core shaft coincides with the axis of the upper branch pipe, and both ends of the upper core shaft are respectively installed in the upper branch pipe through bearings and can be deflected in the upper branch pipe.

3. The cutting wire follower guide device with a straight-axis connecting rod transmission structure according to claim 2, characterized in that: The upper follower guidewire assembly includes: An upper guide seat, which is engaged with the outer end of the upper mandrel and can deflect along with the upper mandrel; An upper guide block, which is mounted on the side wall of the upper guide seat by means of an adjusting bolt, has an elliptical cross section, and has a major axis extending in the transverse direction, and a power supply system is electrically connected to the upper guide block through a line; An upper fixed wheel, which is installed in the upper guide seat through a rotating shaft and corresponds to the position of the upper guide block; The upper wire seat, the middle part of which is installed on the upper support plate through an axle rod, can be deflected on the upper support plate, the upper support plate is installed on the side wall of the upper guide seat, can be deflected together with the upper guide seat, and a gap is formed between the upper wire seat and the upper guide seat, the deflection axes of the upper guide seat and the upper wire seat are perpendicular to each other, an upper follower wheel is set at the top of the upper wire seat through a rotating shaft, and an upper wire nozzle for cutting wire to pass through is provided at the bottom end, and the upper wire nozzle and the upper follower wheel can be deflected together with the upper wire seat.

4. The cutting wire follower guide device with a straight-axis connecting rod transmission structure according to claim 1, characterized in that: The lower direct shaft drive assembly includes: A lower branch pipe, which extends in the transverse direction and is connected to the wire carrying mechanism, and the taper adjustment mechanism drives the lower branch pipe to adjust its position; The lower mandrel is located inside the lower branch pipe, and its axis coincides with the axis of the lower branch pipe. Both ends of the lower mandrel are respectively installed in the lower branch pipe through bearings and can be deflected in the lower branch pipe.

5. The cutting wire follower guide device with a straight-axis connecting rod transmission structure according to claim 4, characterized in that: The lower follower guidewire assembly includes: A lower guide seat, which is engaged with the outer end of the lower mandrel and can deflect along with the lower mandrel; A lower guide block, which is mounted on the side wall of the lower guide seat by means of an adjusting bolt, has an elliptical cross section, and has a major axis extending in the transverse direction, and a power supply system is electrically connected to the lower guide block through a line; A lower fixed wheel, which is installed in the upper guide seat through a rotating shaft and corresponds to the position of the lower guide block; The lower wire seat, the middle part of which is installed on the lower support plate through an axis rod, can be deflected on the lower support plate, the lower support plate is installed on the side wall of the lower guide seat, can be deflected with the lower guide seat, and a gap is formed between the lower wire seat and the lower guide seat, the deflection axes of the lower guide seat and the lower wire seat are perpendicular to each other, a lower follower wheel is set at the bottom end of the lower wire seat through a rotating shaft, and a lower wire nozzle for cutting wire to pass through is provided at the top, and the lower wire nozzle and the lower follower wheel can be deflected with the lower wire seat.

6. A cutting wire follower guide device with a straight-axis connecting rod transmission structure according to claim 2 or 4, characterized in that: The middle vertical axis adapter assembly includes: An upper joint, which is mounted on the inner end of the upper mandrel through a longitudinal rotating shaft and extends below the upper mandrel, and can deflect with the upper mandrel and can deflect independently on the upper mandrel; A lower joint, which is mounted on the inner end of the lower mandrel through a longitudinal rotating shaft and extends above the lower mandrel, and can deflect with the lower mandrel and can deflect independently on the lower mandrel; The top of the adapter coupling is matched with the upper joint through a sliding sleeve, and the bottom is fixedly engaged with the lower joint. When the upper branch pipe is adjusted along with the taper adjustment component, the lower joint and the lower core shaft are driven to adjust their positions through the upper joint and the adapter coupling.

7. The cutting wire follower guide device with a straight-axis connecting rod transmission structure according to claim 6, characterized in that: The upper link drive assembly includes: A transmission upper rod, one end of which is connected to the middle of the upper joint through a longitudinal rotating shaft, and the other end of which is connected to the bottom of the upper wire seat through the longitudinal rotating shaft. A parallelogram frame structure is formed by the upper core shaft, the upper joint, the transmission upper rod and the upper wire seat, so that the upper wire seat can deflect synchronously with the upper joint.

8. The cutting wire follower guide device with a straight-axis connecting rod transmission structure according to claim 6, characterized in that: The lower link drive assembly includes: A transmission lower rod, one end of which is connected to the middle of the lower joint through a longitudinal rotating shaft, and the other end of which is connected to the top of the lower wire seat through the longitudinal rotating shaft. A parallelogram frame structure is formed by the lower core shaft, the lower joint, the transmission lower rod and the lower wire seat, so that the lower wire seat can deflect synchronously with the lower joint.

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