A wire processing lathe

Abstract

The application provides a wire processing lathe, which comprises a base, a straightening device installed on the base and used for straightening coiled metal wires, the straightening device comprising a straightening roller which can rotate around its own axis and can reciprocate along the axis direction of the metal wire to perform a straightening action, a conveying device arranged on the base corresponding to the straightening device and used for clamping and conveying the straightened metal wire, a cutting device installed on the base and arranged on the side of the conveying device away from the straightening device, the conveying device being used for conveying the metal wire to the cutting device for processing, and a clamping device arranged on the side of the cutting device away from the conveying device and used for fixing the metal wire during processing of the cutting device.

Description

Technical Field

[0001] This invention relates to the field of wire processing technology, and more specifically, to a wire processing lathe. Background Technology

[0002] With the rapid development of industries such as precision machinery, medical devices, and electronic components, the requirements for the precision and efficiency of metal wire processing are constantly increasing. Metal wire is usually supplied in a coiled state. Before entering the lathe for turning, it needs to be straightened to eliminate the bending deformation caused by coiling and make it straight. However, existing straightening methods mostly use static straightening wheels, which correct deformation by applying pressure at one or more points to the wire. This static pressure method has a fixed direction of action, and for complex residual bending caused by coiling, multiple adjustments are often required to achieve the desired effect, resulting in low straightening efficiency.

[0003] The problem is: how to efficiently and thoroughly straighten the metal wire that has been coiled around the lathe during continuous feeding and processing on a lathe. Summary of the Invention

[0004] This invention solves the problem of how to efficiently and thoroughly straighten a coiled metal wire during continuous feeding and processing on a lathe.

[0005] To address the aforementioned problems, this invention provides a wire processing lathe, comprising: a base; a straightening device mounted on the base for straightening a coiled metal wire, the straightening device including a straightening roller capable of rotating around its own axis and reciprocating along the axial direction of the metal wire to perform a straightening action; a conveying device disposed on the base corresponding to the straightening device, the conveying device being used to clamp and convey the straightened metal wire; a cutting device mounted on the base and disposed on the side of the conveying device away from the straightening device, the conveying device being used to convey the metal wire to the cutting device for processing; and a clamping device disposed on the side of the cutting device away from the conveying device, for fixing the metal wire during processing by the cutting device.

[0006] Compared with existing technologies, the technical effects achieved by this solution are as follows: By setting up a straightening device including a straightening roller, which can rotate around its own axis and reciprocate along the axis of the metal wire, a straightening action can be performed on the metal wire wound around the coil. When the straightening roller rotates and retracts, it drives the internal straightening components to apply axial tensile force to the wire, eliminating residual bending deformation through plastic stretching. This fully releases residual stress within the wire, effectively preventing springback after straightening. Simultaneously, by setting up a conveying device to clamp and transport the straightened wire, the wire can move forward stably while maintaining its straightness, preventing deviation caused by fluctuations in traction force. By setting up a cutting device to receive the straight wire for processing, and a clamping device to fix the free end of the wire during processing, radial runout and axial movement can be limited. This fundamentally prevents the cumulative effects of original wire bending, feeding sway, and processing vibration on accuracy, thereby significantly improving turning consistency and finished product qualification rate.

[0007] In one possible design, the straightening device further includes: a drive mechanism mounted on the base; and a positioning mechanism located at one end of the straightening device near the conveying device, used to fix the metal wire as the straightening roller reciprocates; wherein the drive mechanism is used to drive the straightening roller to reciprocate and simultaneously drive the positioning mechanism to clamp or release.

[0008] Compared with existing technologies, the technical effects achieved by this solution are as follows: By setting up a drive mechanism and a positioning mechanism, and having the drive mechanism simultaneously drive the straightening roller to reciprocate and the positioning mechanism to clamp or release, the straightening action and the wire fixing action can be integrated into a single linkage process. In particular, the drive mechanism distributes the output of a single power source to both the axial movement of the straightening roller and the clamping action of the positioning mechanism, keeping the two actions synchronized in time. This prevents the timing deviation of the actions that may be caused by the difference in response of multiple power sources, simplifies the structural layout of the drive system, reduces the control complexity, and thus prevents wire slippage or straightening failure caused by mismatch between clamping and straightening actions.

[0009] In one possible design, a number of straightening components are installed inside the straightening roller. The straightening components are arranged at intervals along the axis, and each straightening component has a straightening hole through which the metal wire passes. The straightening holes of the straightening components together form a straightening channel. When the straightening roller rotates and moves along the axis, it drives at least one straightening component to apply a straightening force to the metal wire passing through the straightening channel.

[0010] Compared with existing technologies, the technical effects achieved by this solution are as follows: By arranging multiple straightening components at intervals along the axis of the straightening roller and making the straightening holes of each straightening component jointly form a straightening channel, multiple axially spaced constraint nodes can be constructed on the wire path; when the straightening roller rotates and moves along the axis, it drives at least one straightening component to apply an axial straightening force to the metal wire passing through the straightening channel. This straightening force can eliminate the bending deformation remaining after coiling of the wire through plastic stretching; and the combination of rotational motion and axial movement makes the tensile force act uniformly along the circumference of the wire, which significantly improves the thoroughness and stability of straightening.

[0011] In one possible design, the straightening device further includes a straightening drive assembly; the straightening assembly includes a fixed part and a movable part, the fixed part being fixedly installed on the inner wall of the straightening roller; the movable part is capable of moving radially along the straightening roller under the drive of the straightening drive assembly, so that the metal wire segment passing through the movable part is offset from the metal wire segment passing through the fixed part, so as to straighten the metal wire of the offset segment when the straightening roller moves along the axis.

[0012] Compared with existing technologies, the technical effects achieved by this solution are as follows: By setting the straightening component as a fixed-installation shaping component and a radially movable moving component, and by setting a straightening drive component to drive the moving component to move, a local offset segment of the wire can be actively created within the straightening channel. Specifically, the moving component causes the metal wire segment passing through its straightening hole to deviate from the axial direction defined by the shaping component, which can cause the metal wire segment to bend and deviate in advance. When the straightening roller moves along the axis, the offset segment is stretched axially. This stretching process changes the wire from a bent state to a tensile state, and the bending deformation is completely eliminated through plastic stretching. This can change the stress state of the wire from bending stress to principal tensile stress, effectively dissipating the residual stress remaining after coiling, thereby improving the thoroughness of straightening.

[0013] In one possible design, the straightening drive assembly includes: an axial push rod, which is arranged along the axial direction of the straightening roller, with one end of the axial push rod passing through the end of the straightening roller; a force transmission component, which is connected to the other end of the axial push rod; a stop portion provided on the moving part, with the force transmission component abutting against the stop portion to push the moving part to move radially when the axial push rod moves; a rotation limit component, which is disposed on the straightening roller corresponding to the force transmission component, and is used to constrain the range of motion of the force transmission component; and an axial movable disc, which is disposed outside the straightening roller, with the axial push rod passing through the end of the straightening roller and connected to the axial movable disc; wherein, when the axial movable disc moves along the axial direction of the straightening roller, it drives the axial push rod to move synchronously; after the straightening drive assembly releases the clamping force on the moving part, the moving part can be reset under the action of the centrifugal force generated by the rotation of the straightening roller.

[0014] Compared with existing technologies, the technical effects achieved by this solution are as follows: By setting an axial push rod, a force transmission component, a rotation limiter, and an axial movable disc, and placing the axial movable disc outside the straightening drum, the external linear drive can be smoothly transmitted to the interior of the rotating straightening drum, thereby driving the moving part to move radially. The axial movement of the axial movable disc drives the axial push rod to move synchronously, which in turn pushes the moving part to deflect through the contact between the force transmission component and the stop. The rotation limiter restricts the range of motion of the force transmission component, ensuring that the driving force is accurately transmitted to the moving part along a preset path, preventing the force transmission component from deflecting or wobbling during rotation. Furthermore, the resetting of the moving part does not rely on a reset spring or additional drive components, but is automatically completed using the centrifugal force generated by the rotation of the straightening drum. When the straightening drive assembly releases the clamping force, the moving part resets itself under the action of centrifugal force, making the resetting action naturally synchronized with the drum's rotation state. This avoids the introduction of an additional reset drive structure and simplifies the structural complexity of the straightening drive assembly.

[0015] In one possible design, the conveying device includes: a conveying drive assembly; an active conveying wheel and a driven conveying wheel, the conveying drive assembly being used to drive the active conveying wheel and / or the driven conveying wheel to rotate; wherein the metal wire is clamped between the active conveying wheel and the driven conveying wheel; and a clamping force adjusting mechanism, the clamping force adjusting mechanism being used to adjust the clamping force of the active conveying wheel and the driven conveying wheel on the metal wire to accommodate metal wires of different diameters.

[0016] Compared with existing technologies, the technical effects achieved by this solution are as follows: By setting up a conveyor drive assembly, an active conveyor wheel, and a driven conveyor wheel, and configuring a clamping force adjustment mechanism, it is possible to achieve adaptive clamping and stable conveying of metal wires of different diameters; the clamping force adjustment mechanism changes the clamping force of the two wheels on the wire from a fixed value to an adjustable value, so that the clamping force can be precisely set according to the wire diameter, rather than applying a uniform clamping pressure to all specifications; this avoids surface indentation and deformation of the wire caused by excessive clamping force, as well as conveying slippage and feed deviation caused by insufficient clamping force, thereby improving the stability of the conveying process and the feeding accuracy.

[0017] In one possible design, the clamping force adjustment mechanism includes an operating handle and a resilient holding unit. The operating handle applies an adjustable clamping force to the driven conveyor wheel via the resilient holding unit to adjust the clamping force of the driven conveyor wheel on the metal wire.

[0018] Compared with existing technologies, the technical effects achieved by this technical solution are as follows: by setting a clamping force adjustment mechanism including an operating handle and an elastic holding unit, the clamping force of the driven conveying wheel can be adjusted and controlled; the operating handle transforms manual operation into changes in elastic clamping force through the elastic holding unit, so that the clamping force can be flexibly set as needed, rather than a fixed rigid clamping, which significantly improves the adaptability of the conveying device to different specifications of wire and the feeding stability.

[0019] In one possible design, the cutting device includes: a rotary spindle having a central guide hole for guiding a metal wire; at least one tool mount pivotally mounted on the rotary spindle; and a tool feed controller including a feed drive assembly, a motion conversion mechanism, and an axial drive member, wherein the feed drive assembly drives the axial drive member to reciprocate along the axis of the rotary spindle via the motion conversion mechanism; wherein the axial movement of the axial drive member forces the tool mount to pivot about its pivot axis to perform a tool feed or retraction action.

[0020] Compared with existing technologies, the technical effects achieved by this solution are as follows: By setting a rotary spindle with an internal central guide hole and mounting the tool mount on it in a swingable manner, and configuring a tool feed controller consisting of a feed drive assembly, a motion conversion mechanism, and an axial drive component, bidirectional active control of the tool mount's feed action can be achieved; the feed drive assembly converts the rotary output into the reciprocating linear motion of the axial drive component through the motion conversion mechanism, so that the tool mount's feed and retraction are both controlled by the feed drive assembly, rather than relying on the unidirectional reset of the elastic element; this eliminates reset gaps and response hysteresis, allowing the tool mount to swing precisely with CNC commands, thereby significantly improving cutting response speed and radial feed accuracy.

[0021] In one possible design, a drive block is fixedly connected to the swing shaft of the tool mount, and a transmission mating surface is formed on the drive block; the axial drive component includes a push-pull rod and a thrust bushing, the thrust bushing is coaxially disposed in the rotary spindle and remains in a non-rotating state relative to the rotary spindle, and the thrust bushing is connected to the push-pull rod; a rotating body is also disposed in the rotary spindle, the rotating body is connected to the thrust bushing through a bearing, and one end of the rotating body abuts against the transmission mating surface; wherein, when the push-pull rod drives the thrust bushing to move axially, the rotating body moves synchronously with the thrust bushing, and forces the tool mount to swing around its swing shaft through the transmission mating surface.

[0022] Compared with existing technologies, the technical effects achieved by this solution are as follows: By setting a drive block with a transmission mating surface and fixing it to the swing shaft of the tool mount, and configuring the axial drive component as a combination of a push-pull rod and a thrust bushing, the external linear drive can be reliably transmitted to the high-speed rotating tool mount system. The thrust bushing remains in a non-rotating state relative to the rotating spindle, and is connected to and pushes the rotating body through a bearing, converting the reciprocating linear motion of the non-rotating push-pull rod into the synchronous axial movement of the rotating body. Then, the rotating body forces the drive block to swing the tool mount around the swing shaft through the transmission mating surface, so that the force transmission is smoothly transitioned between the moving and stationary interfaces, rather than allowing the external drive force to act directly on the rotating components. This isolates the interference between the rotational motion and the linear drive, thereby improving the rigidity and motion accuracy of the feed transmission chain.

[0023] In one possible design, the clamping device includes a clamping sleeve and a clamping control mechanism, with the clamping control mechanism sleeved on the outside of the clamping kit; wherein, the clamping sleeve has a clamping cavity in the middle, and the metal wire can be installed in the clamping cavity; the clamping control mechanism is relatively close to or far from the clamping sleeve, and can drive the clamping sleeve to clamp or release the metal wire.

[0024] Compared with existing technologies, the technical effects achieved by this technical solution are as follows: by setting a clamping sleeve and a clamping control mechanism sleeved on its outside, the external drive can be converted into axial clamping control of the metal wire; wherein, the clamping control mechanism moves axially in the direction close to or away from the cutting device, driving the clamping cavity of the clamping sleeve to contract or expand, thereby realizing the clamping or release of the metal wire; this clamping method converts the axial displacement of the control end into the radial clamping force of the clamping end, so that the clamping action can be completed by axial traction, simplifying the structural layout of the clamping device on the discharge side of the cutting device. Attached Figure Description

[0025] Figure 1 A schematic diagram of the structure of the wire processing lathe provided in an embodiment of the present invention. Figure 1 ; Figure 2 A schematic diagram of the structure of the wire processing lathe provided in an embodiment of the present invention. Figure 2 ; Figure 3 Schematic diagram of the straightening device provided in the embodiments of the present invention Figure 1 ; Figure 4 Schematic diagram of the straightening device provided in the embodiments of the present invention Figure 2 ; Figure 5 Schematic diagram of the straightening device provided in the embodiments of the present invention Figure 3 ; Figure 6Schematic diagram of the straightening device provided in the embodiments of the present invention Figure 4 ; Figure 7 A schematic diagram of the cutting device provided in an embodiment of the present invention. Figure 1 ; Figure 8 A schematic diagram of the cutting device provided in an embodiment of the present invention. Figure 2 ; Figure 9 A schematic diagram of the cutting device provided in an embodiment of the present invention. Figure 3 ; Figure 10 This is a schematic diagram of the cutting device and conveying device provided in an embodiment of the present invention; Figure 11 A schematic diagram of the clamping device provided in an embodiment of the present invention. Figure 1 ; Figure 12 A schematic diagram of the clamping sleeve provided in an embodiment of the present invention. Figure 1 ; Figure 13 A schematic diagram of the clamping sleeve provided in an embodiment of the present invention. Figure 2 ; Figure 14 A schematic diagram of the clamping device provided in an embodiment of the present invention. Figure 2 .

[0026] Explanation of reference numerals in the attached figures: 11-Base; 12-Straightening device; 13-Straightening roller; 14-Conveying device; 15-Cutting device; 16-Clamping device; 17-Drive mechanism; 18-Positioning mechanism; 19-Straightening assembly; 20-Straightening drive assembly; 21-Shaping component; 22-Moving component; 23-Axial push rod; 24-Force transmission component; 25-Stop; 26-Rotation limit component; 27-Axial movable disc; 28-Conveying drive assembly; 29-Driven conveyor wheel; 30-Driven conveyor wheel; 31-Clamping force adjustment mechanism; 32-Operating handle; 33-Rotary spindle; 34-Tool mounting base; 35-Feed drive assembly; 36-Motion conversion mechanism; 37 - Axial drive component; 38- Drive block; 39- Transmission mating surface; 40- Push-pull rod; 41- Thrust bushing; 43- Rotating body; 44- Clamping sleeve; 45- Clamping control mechanism; 46- Straightening mounting base; 47- Straightening motor; 48- Hardened push component; 49- Path control wheel; 50- Moving link; 51- Positioning link; 52- Moving path; 54- Rotating part; 55- Fixed part; 56- Prying link; 57- Cam; 58- Elastic adjustment component; 59- Fixing component; 60- Follower component; 61- Swing shaft; 62- Fixed position; 63- Adjusting component; 64- Clamping positioning bushing; 65- Pneumatic push rod; 66- Pneumatic skid. Detailed Implementation

[0027] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0028] See Figures 1 to 14 This invention provides a wire processing lathe, comprising: a base 11; a straightening device 12, which is mounted on the base 11 and used to straighten a coiled metal wire, the straightening device 12 including a straightening roller 13, the straightening roller 13 being rotatable about its own axis and capable of reciprocating along the axial direction of the metal wire to perform a straightening action; a conveying device 14, which is disposed on the base 11 corresponding to the straightening device 12 and is used to clamp and convey the straightened metal wire; a cutting device 15, which is mounted on the base 11 and disposed on the side of the conveying device 14 away from the straightening device 12, and is used to convey the metal wire to the cutting device 15 for processing; and a clamping device 16, which is disposed on the side of the cutting device 15 away from the conveying device 14 and is used to fix the metal wire during processing by the cutting device 15.

[0029] Specifically, in this embodiment, the straightening device 12, conveying device 14, cutting device 15, and clamping device 16 are arranged sequentially on the base 11 along the wire routing direction, forming a complete automated processing line. When the lathe is working, the coiled wire passes through the straightening roller 13 of the straightening device 12. The straightening roller 13 drives the internal straightening assembly 19 to rotate, and through the radial movement of the shaping component 21 and the axial movement of the straightening roller 13, the residual bending deformation of the wire is gradually eliminated. The straightened wire is clamped by the active conveying wheel 29 and the driven conveying wheel 30 and fed towards the cutting device 15. After receiving the straight wire, the cutting device 15 rotates the spindle 33 to drive the tool mounting seat 34 to rotate. The tool feed controller synchronously drives the two push-pull rods 40 according to the CNC program, respectively controlling the tools in the two tool mounting seats 34 to perform turning or cutting processing on the ends of the wire. Meanwhile, the clamping device 16, located on the exit side of the cutting device 15, radially limits the free end of the wire through the clamping sleeve 44, and is clamped and fixed by the clamping control mechanism 45, forming a two-end support with the cutting device 15. The coordinated operation of all devices in the lathe ensures that the entire process of straightening, feeding, cutting, and clamping of the metal wire wound around the disc can be completed continuously and stably.

[0030] It should be noted that the wire processing lathe provided in this application can continuously straighten and process metal wires in the form of coiled stock, eliminating the need to pre-cut the coiled wire into fixed-length segments for clamping and straightening, thus significantly reducing material changeover and auxiliary operation time, and improving the continuous processing capacity and overall production efficiency of the equipment. Due to the continuous feeding method, the entire coil of wire only generates end allowance once during initial threading and final tailing, avoiding the unusable excess material generated at both ends of each wire segment due to clamping requirements in traditional segmented straightening, greatly reducing material waste. Simultaneously, this application uses a conveying device located downstream of the straightening device to pull and transport the wire, which, compared to the feeding method of pushing in from the rear end of the wire, effectively avoids the problem of slender wires becoming unstable under axial thrust due to pressure bending. This allows even finer metal wires to be directly and stably transported and processed without the need to first turn coarse-diameter wire to fine-diameter wire, further reducing material consumption and processing costs. This application effectively shortens the single-piece processing cycle and improves material utilization and equipment production efficiency through continuous coil straightening, front-end pull-out conveying, and stable clamping during processing.

[0031] In one embodiment of this application, the straightening device 12 further includes: a drive mechanism 17, which is mounted on the base 11; and a positioning mechanism 18, which is disposed at one end of the straightening device 12 near the conveying device 14 and is used to fix the metal wire when the straightening roller 13 reciprocates; wherein the drive mechanism 17 is used to drive the straightening roller 13 to reciprocate and simultaneously drive the positioning mechanism 18 to clamp or release.

[0032] Specifically, in this embodiment, the straightening device 12 includes a straightening mounting base 46, and the straightening roller 13 is rotatably supported on the straightening mounting base 46; the straightening roller 13 can be driven by a drive motor (not shown) through a conveyor belt, thereby causing the straightening roller 13 to rotate at high speed around its own axis; at the same time, two slide rods are provided on the base 11, and the straightening mounting base 46 is slidably mounted on the two slide rods; the drive mechanism 17 includes a straightening motor 47, a path control wheel 49, a moving link 50 and a positioning link 51, the path control wheel 49 has a preset active path 52, and the ends of the link and the positioning link 51 are movably set in the active path 52 of the path control wheel 49 through bearings. The active path 52 was designed after experimental verification. When the path control wheel 49 rotates, it first drives the positioning link 51 to press the positioning mechanism 18, causing the positioning mechanism 18 to clamp and fix the metal wire. As the path control wheel 49 continues to rotate, it drives the moving link 50 to rotate. The other end of the moving link 50 is movably connected to the straightening mounting base 46. As the moving link 50 rotates, it can drive the straightening roller 13 to move. By controlling the reciprocating rotation of the path control wheel 49 through the straightening motor 47, the straightening roller 13 can be controlled to move back and forth along its axial direction. The positioning mechanism 18 clamps and fixes the metal wire to prevent the metal wire from retracting when the straightening roller 13 moves backward axially.

[0033] In one embodiment of this application, a plurality of straightening components 19 are installed inside the straightening roller 13. The plurality of straightening components 19 are arranged at intervals along the axis. Each straightening component 19 has a straightening hole for the metal wire to pass through. The straightening holes of the straightening components 19 together form a straightening channel. When the straightening roller 13 rotates and moves along the axis, it drives at least one straightening component 19 to apply a straightening force to the metal wire passing through the straightening channel.

[0034] Specifically, inside the straightening roller 13, multiple straightening components 19 are installed alternately along the axial direction. Each straightening component 19 has a straightening hole for the metal wire to pass through. A bearing is installed in the straightening hole, and the center of the bearing is for the metal wire to pass through. Different types of bearings can be replaced according to the diameter of the metal wire.

[0035] In one embodiment of this application, the straightening device 12 further includes a straightening drive assembly 20; the straightening assembly 19 includes a shaping member 21 and a moving member 22, the shaping member 21 is fixedly installed on the inner wall of the straightening roller 13; the moving member 22 can move radially along the straightening roller 13 under the drive of the straightening drive assembly 20, so that the metal wire segment passing through the moving member 22 is offset from the metal wire segment passing through the shaping member 21, so that the metal wire of the offset segment is straightened when the straightening roller 13 moves along the axis.

[0036] Specifically, in this embodiment, five straightening components 19 are installed inside the straightening roller 13, four of which are fixed components 21 and one is a movable component 22. Two fixed components 21 are respectively arranged on both sides of the movable component 22 along the axial direction of the straightening roller 13. The fixed components 21 are fastened to the inner wall of the straightening roller 13 by insertion or other fixing methods, while the movable component 22 is movably disposed on the inner wall of the straightening roller 13 and can move radially towards or away from the inner wall of the straightening roller 13. The movable component 22 is located in the middle. When the straightening drive component 20 drives the movable component 22 to squeeze the metal wire, the metal wire segment passing through the movable component 22 will be offset from the metal wire segment passing through the fixed component 21. Then, by axially moving the straightening roller 13, the offset metal wire segment can be straightened. After straightening is completed, the conveying device 14 will transport the straightened metal wire to processing, and the straightening roller 13 will also move axially back to its original position, waiting for the next straightening action.

[0037] In one embodiment of this application, the straightening drive assembly 20 includes: an axial push rod 23, which is arranged along the axial direction of the straightening roller 13, and one end of the axial push rod 23 passes through the end of the straightening roller 13; a force transmission component 24, which is connected to the other end of the axial push rod 23; a stop portion 25 is provided on the moving member 22, and the force transmission component 24 abuts against the stop portion 25 to push the moving member 22 to move radially when the axial push rod 23 moves; and a rotation limit member 26, which corresponds to the force transmission component 23. Component 24 is disposed on the straightening roller 13 and is used to constrain the range of motion of the force transmission component 24; axial movable disk 27 is disposed outside the straightening roller 13, and axial push rod 23 passes through the end of the straightening roller 13 and is connected to the axial movable disk 27; wherein, when the axial movable disk 27 moves along the axial direction of the straightening roller 13, it drives the axial push rod 23 to move synchronously; after the straightening drive assembly 20 releases the clamping force on the moving part 22, the moving part 22 can be reset under the action of the centrifugal force generated by the rotation of the straightening roller 13.

[0038] Specifically, the straightening device 12 is equipped with a straightening drive assembly 20, which includes a pair of axial push rods 23, which are symmetrically arranged on both radial sides of the straightening roller 13 and extend along the axial direction of the straightening roller 13. One end of each axial push rod 23 passes through the end of the straightening roller 13 and is connected to the axial movable disk 27, and the other end is connected to a force transmission component 24. The moving part 22 is provided with a stop part 25 corresponding to the two force transmission components 24. The stop part 25 can be a flange or step protruding from the side of the moving part 22 body, or it can be a baffle installed on the moving part 22. The force transmission component 24 abuts against the stop part 25 on the same side, and the two force transmission components 24 are connected together by a connecting shaft so that they can move synchronously. A rotation limiter 26 is also fixed on the straightening roller 13 at the position corresponding to the force transmission component 24. The protrusion on the force transmission component 24 is embedded in the rotation limiter 26, thereby restricting the movement of the force transmission component 24. The axially movable disk 27 includes a rotating part 54 and a fixed part 55, which are connected by bearings. A prying rod 56 is connected to the bottom of the fixed part 55. A cam 57 is also connected to the drive shaft of the straightening motor 47. After the cam 57 rotates to a certain angle, it will push up the prying rod 56, thereby causing the axially movable disk 27 to move away from the straightening roller 13, thus driving the moving part 22 to squeeze the metal wire. The reciprocating rotation of the cam 57 can drive the axially movable disk 27 to move closer to or away from the straightening roller 13. It should be noted that in this application, the cam 57 and the wheel control wheel are synchronously controlled by the drive shaft of the straightening motor 47. Therefore, the axial movement of the straightening roller 13, the movement of the moving part 22, and the clamping of the positioning mechanism 18 are all executed synchronously. They work together to straighten the metal wire.

[0039] In one embodiment of this application, the conveying device 14 includes: a conveying drive assembly 28; an active conveying wheel 29 and a driven conveying wheel 30, wherein the conveying drive assembly 28 is used to drive the active conveying wheel 29 and / or the driven conveying wheel 30 to rotate; wherein the metal wire is clamped between the active conveying wheel 29 and the driven conveying wheel 30; and a clamping force adjusting mechanism 31, which is used to adjust the clamping force of the active conveying wheel 29 and the driven conveying wheel 30 on the metal wire to adapt to metal wires of different diameters.

[0040] Furthermore, the clamping force adjustment mechanism 31 includes an operating handle 32 and an elastic holding unit. The operating handle 32 applies an adjustable clamping force to the driven conveying wheel 30 through the elastic holding unit to adjust the clamping force of the driven conveying wheel 30 on the metal wire.

[0041] Specifically, the conveying device 14 includes a conveying drive assembly 28 and a driving conveying wheel 29 and a driven conveying wheel 30 arranged opposite each other. The conveying drive assembly 28 may be, for example, a servo motor connected to a reducer, used to drive the driving conveying wheel 29 to rotate. The driven conveying wheel 30 is mounted on a swingable bracket and can move closer to or further away from the driving conveying wheel 29. The metal wire is clamped between the circumferential surfaces of the two wheels and is fed out by friction. Semi-circular grooves matching the metal wire can be formed on the circumferential surfaces of the two wheels to increase the contact area. The conveying device 14 is also equipped with a clamping force adjustment mechanism 31, which includes an operating handle 32 and an elastic holding unit. The elastic holding unit may include a compression spring, one end of which abuts against the bracket of the driven conveying wheel 30, and the other end abuts against the adjusting screw of the operating handle 32. By moving or rotating the operating handle 32, the position of the driven conveying wheel 30 can be changed, so that the driven conveying wheel 30 moves closer to or further away from the driving conveying wheel 29, thereby moving the driven conveying wheel 30 parallel to its bracket to change the clamping distance between the driving conveying wheel 29 and the driven conveying wheel 30. The elastic holding unit is also equipped with an elastic adjustment component 58. Rotating the elastic adjustment component 58 can adjust the compression amount of the compression spring, thereby realizing flexible adjustment of the clamping force for wires of different diameters, which not only ensures the feeding friction but also avoids damage to the surface of the wires caused by rigid clamping.

[0042] In one embodiment of this application, the cutting device 15 includes: a rotary spindle 33 having a central guide hole for guiding metal wire; at least one tool mount 34 oscillatingly mounted on the rotary spindle 33; and a tool feed controller, which includes a feed drive assembly 35, a motion conversion mechanism 36, and an axial drive member 37. The feed drive assembly 35 drives the axial drive member 37 to reciprocate along the axial direction of the rotary spindle 33 via the motion conversion mechanism 36. The axial movement of the axial drive member 37 forces the tool mount 34 to oscillate around its swing axis 61 to perform a tool feed or retraction action.

[0043] Specifically, the core of the cutting device 15 is a rotary spindle 33 driven by a spindle motor. A central guide hole is machined along the axis inside the spindle to guide the wire and make it extend from the end of the rotary spindle 33 away from the conveying device 14. Two swingable tool mounts 34 are installed at the end of the rotary spindle 33 away from the conveying device 14. Each tool mount 34 is installed on the rotary spindle 33 via a swing shaft 61. The swing shaft 61 controls the tool mount 34 to move towards or away from the metal wire. To achieve radial feed and retraction of the tool in the tool mount 34, the cutting device 15 is equipped with a tool feed controller. The tool feed controller includes a feed drive assembly 35, a motion conversion mechanism 36, and an axial drive component 37. The feed drive assembly 35 includes a CNC motor connected to a drive shaft via a reducer. The motion conversion mechanism 36 includes a fixed component 59 and a follower component 60. When the fixed component 59 reciprocates with the drive shaft, it can drive the follower component 60 to reciprocate. The motion conversion mechanism 36 can drive the axial drive component 37 to reciprocate along the axis of the rotary spindle 33. The axial displacement of the axial drive component 37 ultimately forces the tool mount 34 to swing around its swing axis 61, performing the feed or retraction action.

[0044] In one embodiment of this application, a drive block 38 is fixedly connected to the swing shaft 61 of the tool mounting base 34, and a transmission mating surface 39 is formed on the drive block 38; the axial drive member 37 includes a push-pull rod 40 and a thrust bushing 41, the thrust bushing 41 is coaxially disposed in the rotary spindle 33 and maintains a non-rotating state relative to the rotary spindle 33, and the thrust bushing 41 is connected to the push-pull rod 40; a rotating body 43 is also disposed in the rotary spindle 33, the rotating body 43 is connected to the thrust bushing 41 through a bearing, and one end of the rotating body 43 abuts against the transmission mating surface 39; wherein, when the push-pull rod 40 drives the thrust bushing 41 to move axially, the rotating body 43 moves synchronously with the thrust bushing 41, and forces the tool mounting base 34 to swing around its swing shaft 61 through the transmission mating surface 39.

[0045] Specifically, the tool mounting base 34 and the drive block 38 are connected by a pivot shaft; in this embodiment, the axial drive component 37 includes a push-pull rod 40 and a thrust bushing 41; the thrust bushing 41 is disposed in the rotary spindle 33 and does not rotate with the rotation of the rotary spindle 33, but can slide axially. The rear end of the push-pull rod 40 is connected to the output end of the motion conversion mechanism 36, that is, connected to the follower 60, while the front end is fixedly connected to the thrust bushing 41. A rotating body 43 is also installed inside the rotary spindle 33. The rotating body 43 is connected to the thrust bushing 41 through a rolling bearing. A hard abutment 48 is provided on the rotating body 43 at the position corresponding to the transmission mating surface 39. The hard abutment 48 is used to abut against the transmission mating surface 39. The transmission mating surface 39 can be a spiral guide surface or an inclined surface. When the feed drive assembly 35 drives the push-pull rod 40 to move closer to the drive block 38 through the motion conversion mechanism 36, the thrust bushing 41 and the rotating body 43 push forward synchronously. The hard abutment 48 at the front end of the rotating body 43 pushes against the transmission mating surface 39 of the drive block 38, forcing the drive block 38 to drive the tool mounting seat 34 to swing around the swing axis 61 to realize the tool feed. When the push-pull rod 40 moves backward, the tool retraction is realized. Of course, when the feed drive assembly 35 drives the push-pull rod 40 to move closer to the drive block 38 via the motion conversion mechanism 36, the thrust bushing 41 and the rotating body 43 push forward synchronously. The metal ring at the front end of the rotating body 43 pushes against the transmission mating surface 39 of the drive block 38, forcing the drive block 38 to drive the tool mounting seat 34 to swing around the swing axis 61, thus achieving tool retraction; when the push-pull rod 40 moves backward, it achieves tool infeed. In this embodiment, two push-pull rods 40 are provided, which are symmetrically arranged on both sides of the rotary spindle 33, respectively controlling the two tool mounting seats 34; the tool infeed and retraction methods of the two tool mounting seats 34 can be changed according to the different arrangements of the transmission mating surface 39.

[0046] In this embodiment, there are two tool mounts 34, symmetrically arranged on the front end face of the rotary spindle 33; the two tool mounts 34 are arranged on both sides of the central guide tube; the tool feed controller includes two push-pull rods 40, each push-pull rod 40 is connected to and drives one tool mount 34 to swing. The drive block 38 includes a first drive block 38 and a second drive block 38. One of the two tool mounts 34 is connected to the first drive block 38, and the other is connected to the second drive block 38. The transmission mating surface 39 of the first drive block 38 gradually moves towards the central guide tube in the direction away from the push-pull rod 40. The transmission mating surface 39 of the second drive block 38 gradually moves towards the central guide tube in the direction close to the push-pull rod 40. This means that the inclination directions of the transmission mating surfaces 39 of the two drive blocks 38 are opposite. When the push-pull rod 40 pushes the thrust bushing 41 and the rotating body 43 to move axially towards the tool mount 34, the thrust applied by the rotating body 43 to the first drive block 38 will force the first tool mount 34 to swing towards the central guide tube, i.e., perform the feed action. At the same time, the thrust applied by the rotating body 43 to the second drive block 38 will force the second tool mount 34 to swing away from the central guide tube, i.e., perform the retraction action. Conversely, when the push-pull rod 40 moves in the opposite direction, the first tool mount 34 retracts while the second tool mount 34 advances. This ensures that the movement direction of the two tool mounts 34 remains the same at any given time; that is, one advances while the other retracts, guaranteeing that only one tool mount 34 participates in cutting during the machining process, avoiding interference or overcutting that may be caused by the simultaneous cutting of the two tool mounts 34. Of course, in other embodiments, the inclination direction of the transmission mating surface 39 can be changed to allow the two tool mounts 34 to advance simultaneously towards the metal wire.

[0047] In one embodiment of this application, the drive block 38 is also connected to a counterweight block. The drive block 38 and the counterweight block are integrally formed, and the swing shaft 61 is inserted between the drive block 38 and the counterweight block. When the rotary spindle 33 rotates under the drive of the motor, the counterweight block will swing away from the axis of the rotary spindle 33 due to centrifugal force. This will force the transmission mating surface 39 of the drive block 38 to be in close contact with the hard pusher 48 of the rotating body 43.

[0048] The tool mounting base 34 is movable towards or away from the surface of the rotary spindle 33. A fixed position 62 and an adjusting member 63 are provided on the side of the rotary spindle 33. The fixed position 62 restricts the movement of the swing shaft 61, and the adjusting member 63 drives the swing shaft 61, causing the tool mounting base 34 to move relative to the surface of the rotary spindle 33. Specifically, a fastener is provided in the fixed position 62, and tightening the fastener allows it to press against the swing shaft 61. Simultaneously, the adjusting member 63 is provided on the side of the rotary spindle 33, and tightening the adjusting member 63 drives the swing shaft 61 to extend or retract from the rotary spindle 33, thereby moving the tool mounting base 34 towards or away from the surface of the rotary spindle 33 to adjust the tool's position on the metal wire. Two fasteners are provided on the side of the tool mounting base 34. By tightening the two fasteners, the two fasteners can be pressed against the tool. At the same time, an adjustment component is provided at the end of the tool mounting base 34. By tightening the adjustment component, the tool can be driven to move closer to the axis of the rotary spindle 33. It should be noted that if the tool is to be moved away from the axis of the rotary spindle 33, manual adjustment is required.

[0049] In one embodiment of this application, the clamping device 16 includes a clamping sleeve 44 and a clamping control mechanism 45, the clamping control mechanism 45 being sleeved on the outside of the clamping kit; wherein, the clamping sleeve 44 is provided with a clamping cavity in the middle, and the metal wire can be installed in the clamping cavity; the clamping control mechanism 45 is relatively close to or far away from the clamping sleeve 44, and can drive the clamping sleeve 44 to clamp or release the metal wire.

[0050] Specifically, in this embodiment, the clamping device 16 is disposed on the side of the cutting device 15 away from the conveying device 14, and is used to fix the wire from the end during the turning or cutting process; the clamping device 16 includes a clamping sleeve 44 and a clamping control mechanism 45, the clamping control mechanism 45 being sleeved on the outside of the clamping sleeve 44. The front end of the clamping sleeve 44 has multiple axial grooves along its circumference, forming multiple radially elastically deformable jaws at the front end of the clamping sleeve 44; a clamping cavity is formed inside the clamping sleeve 44, through which the metal wire can pass. The outer wall of the front end of the clamping sleeve 44 is provided with an outer conical surface, and the inner wall of the clamping control mechanism 45 is provided with an inner conical surface that matches the outer conical surface. The clamping control mechanism 45 is connected to an air pump, which can drive the clamping control mechanism 45 to reciprocate along the axial direction of the clamping sleeve 44 in the direction of approaching or moving away from the cutting device 15. When the clamping control mechanism 45 moves towards the cutting device 15, the inner conical surface presses against the outer conical surface, causing the jaws at the front end of the clamping sleeve 44 to contract radially, and the clamping cavity to close, thereby clamping the metal wire. When the clamping control mechanism 45 moves away from the cutting device 15, the pressure between the inner and outer conical surfaces is released, the jaws open radially under their own elasticity, the clamping cavity opens, and the metal wire is released. It should be noted that in this embodiment, the clamping control mechanism 45 is the movable party and the clamping sleeve 44 is the fixed party. The axial movement of the clamping control mechanism 45 can drive the clamping sleeve 44 to clamp or release the metal wire. In other embodiments, the clamping control mechanism 45 can also be the fixed party and the clamping sleeve 44 can be the movable party. The axial movement of the clamping sleeve 44 can drive the clamping sleeve 44 to clamp or release the metal wire itself.

[0051] In this embodiment, a clamping positioning bushing 64 is also provided on the outside of the clamping control mechanism 45, and the clamping positioning bushing 64 is fixedly installed on the base of the clamping device 16. Thus, the clamping positioning bushing 64, the clamping control mechanism 45, and the clamping sleeve 44 together form a three-layer structure, wherein the clamping sleeve 44 is disposed in the inner layer, the clamping control mechanism 45 is disposed in the middle layer, and the clamping positioning bushing 64 is disposed in the outer layer. The three layers work together to complete the clamping action of the metal wire. In this embodiment, the clamping positioning bushing 64 and the clamping sleeve 44 are fixed, and the clamping control mechanism 45, driven by the pneumatic drive mechanism, can move relative to the clamping positioning bushing 64 and the clamping sleeve 44 in a direction closer to or farther away from the cutting device 15, thereby squeezing or releasing the clamping sleeve 44. The clamping device 16 also includes a pneumatic push rod 65 and a pneumatic skid 66. In this embodiment, the pneumatic push rod 65 is installed on the base of the clamping device 16, and one end of the pneumatic skid 66 is connected to the end of the pneumatic push rod 65. When the pneumatic drive mechanism is working, it can drive the pneumatic push rod 65 to move, thereby moving the pneumatic skid 66 and changing the extension and retraction state of the clamping control mechanism 45.

[0052] The wire processing lathe can also be equipped with a track conveyor, which has a gripper mechanism for picking up the processed finished product. Furthermore, the wire processing lathe is also equipped with a drilling device for drilling holes in the metal wire.

[0053] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A wire processing lathe, characterized in that, include: Base (11); A straightening device (12) is installed on the base (11) for straightening the metal wire wound around the coil. The straightening device (12) includes a straightening roller (13), which can rotate around its own axis and can reciprocate along the axis of the metal wire to perform a straightening action. A conveying device (14) is disposed on the base (11) corresponding to the straightening device (12). The conveying device (14) is used to clamp and convey the straightened metal wire. A cutting device (15) is mounted on the base (11) and located on the side of the conveying device (14) away from the straightening device (12). The conveying device (14) is used to convey metal wire to the cutting device (15) for processing. A clamping device (16) is provided on the side of the cutting device (15) away from the conveying device (14) for fixing the metal wire during the cutting device (15) processing.

2. The wire processing lathe according to claim 1, characterized in that, The straightening device (12) further includes: A drive mechanism (17) is mounted on the base (11). Positioning mechanism (18) is provided at one end of the straightening device (12) near the conveying device (14) for fixing the metal wire when the straightening roller (13) moves back and forth; The driving mechanism (17) is used to drive the straightening roller (13) to reciprocate and simultaneously drive the positioning mechanism (18) to clamp or release.

3. The wire processing lathe according to claim 1, characterized in that, The straightening roller (13) is equipped with a plurality of straightening components (19), which are arranged at intervals along the axis. Each straightening component (19) has a straightening hole for the metal wire to pass through, and the straightening holes of each straightening component (19) together form a straightening channel. When the straightening roller (13) rotates and moves along the axis, it drives at least one of the straightening components (19) to apply a straightening force to the metal wire passing through the straightening channel.

4. The wire processing lathe according to claim 3, characterized in that, The straightening device (12) further includes a straightening drive assembly (20); the straightening assembly (19) includes a shaping member (21) and a moving member (22), the shaping member (21) is fixedly installed on the inner wall of the straightening roller (13); the moving member (22) can move radially along the straightening roller (13) under the drive of the straightening drive assembly (20) so that the metal wire segment passing through the moving member (22) is offset from the metal wire segment passing through the shaping member (21) so that the metal wire of the offset segment is straightened when the straightening roller (13) moves along the axis.

5. The wire processing lathe according to claim 4, characterized in that, The straightening drive assembly (20) includes: An axial push rod (23) is provided along the axial direction of the straightening roller (13), and one end of the axial push rod (23) passes through the end of the straightening roller (13). Force transmission component (24), which is connected to the other end of the axial push rod (23); The moving part (22) is provided with a stop (25), and the force transmission component (24) abuts against the stop (25) to push the moving part (22) to move radially when the axial push rod (23) moves; A rotation limiter (26) is provided on the straightening roller (13) corresponding to the force transmission component (24) to constrain the range of motion of the force transmission component (24); An axial movable disk (27) is disposed outside the straightening roller (13), and the axial push rod (23) passes through the end of the straightening roller (13) and is connected to the axial movable disk (27). When the axial movable disk (27) moves along the axial direction of the straightening roller (13), it drives the axial push rod (23) to move synchronously; after the straightening drive assembly (20) releases the clamping force on the moving part (22), the moving part (22) can be reset under the action of the centrifugal force generated by the rotation of the straightening roller (13).

6. The wire processing lathe according to claim 1, characterized in that, The conveying device (14) includes: Conveyor drive assembly (28); An active conveyor wheel (29) and a driven conveyor wheel (30) are provided, wherein the conveying drive assembly (28) is used to drive the active conveyor wheel (29) and / or the driven conveyor wheel (30) to rotate; wherein a metal wire is sandwiched between the active conveyor wheel (29) and the driven conveyor wheel (30); The clamping force adjustment mechanism (31) is used to adjust the clamping force of the active conveying wheel (29) and the driven conveying wheel (30) on the metal wire to adapt to metal wires of different diameters.

7. The wire processing lathe according to claim 6, characterized in that, The clamping force adjustment mechanism (31) includes an operating handle and an elastic holding unit. The operating handle applies an adjustable clamping force to the driven conveying wheel (30) through the elastic holding unit to adjust the clamping force of the driven conveying wheel (30) on the metal wire.

8. The wire processing lathe according to claim 1, characterized in that, The cutting device (15) includes: The rotary spindle (33) has a central guide hole inside for guiding the metal wire; At least one tool mount (34) is pivotally mounted on the rotary spindle (33); The tool feed controller includes a feed drive assembly (35), a motion conversion mechanism (36), and an axial drive (37). The feed drive assembly (35) drives the axial drive (37) to reciprocate along the axis of the rotary spindle (33) via the motion conversion mechanism (36). The axial movement of the axial drive (37) forces the tool mount (34) to swing around its swing axis (61) to perform tool feed or retraction actions.

9. The wire processing lathe according to claim 8, characterized in that, A drive block (38) is fixedly connected to the swing shaft (61) of the tool mounting base (34), and a transmission mating surface (39) is formed on the drive block (38); the axial drive component (37) includes a push-pull rod (40) and a thrust bushing (41), the thrust bushing (41) is coaxially disposed in the rotary spindle (33) and maintains a non-rotating state relative to the rotary spindle (33), and the thrust bushing (41) is connected to the push-pull rod (40); The rotary spindle (33) is also provided with a rotating body (43), which is connected to the thrust bushing (41) through a bearing, and one end of the rotating body (43) abuts against the transmission mating surface (39); When the push-pull rod (40) drives the thrust bushing (41) to move axially, the rotating body (43) moves synchronously with the thrust bushing (41) and forces the tool mounting seat (34) to swing around its swing axis (61) through the transmission mating surface (39).

10. The wire processing lathe according to any one of claims 1 to 9, characterized in that, The clamping device (16) includes a clamping sleeve (44) and a clamping control mechanism (45), the clamping control mechanism (45) being sleeved on the outside of the clamping kit; The clamping sleeve (44) has a clamping cavity in the middle, and the metal wire can be installed in the clamping cavity; the clamping control mechanism (45) is relatively close to or far away from the clamping sleeve (44), and can drive the clamping sleeve (44) to clamp or release the metal wire.

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