Three-axis servo feeding system of spring grinder

Abstract

The invention discloses a three-axis servo feeding system of a spring grinder. The three-axis servo feeding system comprises a material conveying channel, a material disc, a material receiving frame, a steering roller, a positioning rod, a locking mechanism and a three-axis moving mechanism. A spring is horizontally sent out through the material conveying channel, the material receiving frame achieves posture conversion and temporary storage of the spring through a steering roller and a positioning rod, the spring is fixed through the locking mechanism, and the three-axis moving mechanism accurately moves the spring to a material hole of the material disc and completes vertical placement. According to the spring feeding device, the technical effects of improving the automation degree and optimizing the feeding efficiency and stability are achieved, and meanwhile efficient conveying and accurate positioning of springs are achieved through the multi-stage structural design.

Description

Technical Field

[0001] The present application relates to the field of automatic feeding equipment for spring grinding machines, and in particular to a three-axis servo feeding system for spring grinding machines. Background Art

[0002] In the spring processing industry, spring grinding machines are key equipment responsible for precisely grinding spring end faces. With the advancement of industrial automation, efficiency and precision requirements in spring processing continue to increase, placing higher demands on the spring grinding machine's loading system. Traditional loading methods, which have long dominated the industry, rely on manual operation or simple mechanical feeding devices to complete the spring loading process. While these methods met basic production needs in the early stages, they gradually exposed numerous problems as market demands shifted.

[0003] To address the issue of low loading efficiency, the industry typically uses single-axis or dual-axis servo control systems for automated loading. For example, a single-axis servo mechanism coupled with a linear guide can transport the spring longitudinally, while a dual-axis servo mechanism can achieve both transverse and longitudinal transport. Additionally, some solutions utilize a vibrating plate combined with a pneumatic clamp to position and transport the spring.

[0004] The aforementioned existing technologies generally suffer from low transfer efficiency when processing springs. Specifically, single-axis or dual-axis servo systems struggle to simultaneously meet the requirements of spring posture adjustment, precise positioning, and multi-process connection. This results in insufficient flexibility during the loading process, which in turn limits overall production efficiency. Summary of the Invention

[0005] In order to improve the spring transfer efficiency, the present application provides a three-axis servo feeding system for a spring grinding machine.

[0006] The three-axis servo feeding system of a spring grinding machine provided in this application adopts the following technical solution: A three-axis servo feeding system for a spring grinding machine, comprising: The feeding channel is used to feed the spring to be ground longitudinally in a horizontal state; A material tray, the material tray being provided with a plurality of material holes for receiving the spring to be ground in a vertical state; A material receiving frame, wherein the material receiving frame is rotatably connected to a transverse steering roller and is provided with a steering drive member for driving the steering roller to rotate. The steering roller is provided with a plurality of positioning rods for spring sleeves along its own radial direction. The plurality of positioning rods are circumferentially distributed on the outer peripheral surface of the steering roller. When receiving materials, the positioning rod to be received is rotated to face the discharge end of the conveyor channel to receive the spring sent from the discharge end of the conveyor channel. The position switching between the positioning rod for the received material and the positioning rod for the received material is achieved by the rotation of the steering roller. A locking mechanism for independently controlling the fixing and unlocking actions of the springs at each positioning rod; The three-axis moving mechanism is used to drive the receiving rack to move longitudinally, transversely and vertically, so as to move the spring to be ground to the top of the material hole of the material tray and place it vertically. The position switching between the positioning rod of the material to be discharged and the positioning rod of the material to be discharged is realized by the rotation of the steering roller, so as to complete the lowering action of the springs at each positioning rod at the steering roller.

[0007] By adopting this technical solution, the conveyor can stably deliver springs in a horizontal position, ensuring continuous and stable spring delivery. The positioning rod design on the steering roller allows the springs to be precisely inserted and fixed. Multiple positioning rods are arranged on the reversing roller, allowing multiple springs to be loaded and unloaded simultaneously during a single material transfer, significantly improving material transfer efficiency. During the material receiving process, the reversing roller rotates to switch the position of the positioning rods for the received material with those for the material to be received, thereby efficiently completing the material receiving operation for multiple springs. During the material discharge process, the reversing roller similarly rotates to switch the position of the positioning rods for the discharged material with those for the material to be discharged. This not only orderly transitions the springs from a horizontal to a vertical position, but also ensures that the springs are accurately placed in the material holes of the material tray, significantly improving the operating efficiency and accuracy of the entire feeding system. In addition, the locking mechanism independently controls the spring fixation and unlocking of each positioning rod, ensuring smooth material receiving and discharge operations. The three-axis moving mechanism gives the material receiving frame the ability to move precisely in the longitudinal, transverse and vertical directions, so that the spring can be accurately transferred from the material conveyor to the designated material hole of the material tray. The whole process is highly automated, which significantly improves the efficiency and accuracy of the spring grinding machine feeding system.

[0008] Preferably, the locking mechanism includes a plurality of electromagnets arranged on the outer peripheral surface of the steering roller, and the plurality of electromagnets correspond one-to-one to a plurality of positioning rods. When the positioning rod performs the material receiving action, the corresponding electromagnet is energized to magnetically fix the spring; when the positioning rod performs the material discharging action, the corresponding electromagnet is de-energized to unlock the spring.

[0009] By adopting this technical solution, the electromagnet arrangement enables precise spring fixation and unlocking. During the loading process, the electromagnet is energized to generate magnetic force, firmly adhering the spring to the positioning rod. This ensures the spring's stability during transfer and prevents it from falling due to vibration or external forces. During the unloading process, the electromagnet is de-energized to eliminate the magnetic force, allowing the spring to smoothly detach from the positioning rod and complete the unlocking process. This solution effectively improves the automation and reliability of the spring loading process, while simplifying the operation process and reducing the risk of failure.

[0010] Preferably, a plurality of material receiving areas are divided on the outer peripheral surface of the steering roller, and the plurality of material receiving areas are spaced apart along the axial direction of the steering roller. The number of the material receiving areas is consistent with the number of the material conveying channels and corresponds one to one; there are no less than 2 positioning rods at each of the material receiving areas, and the plurality of positioning rods in the material receiving areas are equally spaced along the circumferential direction of the steering roller.

[0011] By employing this technical solution, 1. By dividing the outer circumference of the steering roller into several receiving zones, and aligning the number of receiving zones with the number of feeder tracks, the system effectively matches the loading needs of multiple feeder tracks, improving the overall loading efficiency and compatibility of the system. Each receiving zone contains at least two equally spaced positioning rods, ensuring that multiple springs can be accommodated within a single receiving zone. Combined with the steering roller's rotational function, the positioning rods can flexibly switch between received and unreceived material, achieving continuous and efficient loading.

[0012] Preferably, the angle between adjacent positioning rods in each of the material receiving areas is 90°.

[0013] By adopting this technical solution, the angle between adjacent positioning rods in each receiving area is set at 90°, ensuring that the positioning rods are evenly distributed during the rotation of the steering roller. This layout not only improves space utilization but also allows the steering roller to switch positioning rods between received and unreceived materials more smoothly and efficiently, thereby improving the operational stability of the entire feeding system and the feeding accuracy of the springs.

[0014] Preferably, the conveyor channel is divided into a detection area, and a limiting mechanism and a counting component are provided at the detection area. The counting component is used to count the number of springs passing through the detection area. When the number of springs passing through the detection area is equal to the number of positioning rods at the receiving area corresponding to the conveyor channel, the limiting mechanism blocks the conveyor channel to prevent the springs behind the conveyor channel from passing through the detection area.

[0015] By adopting the above technical solution, by setting up a detection area at the material conveyor and combining it with a counting component to calculate the number of springs passing through the detection area, it is ensured that the positioning rods in each receiving area can accurately receive the corresponding number of springs, avoiding over-feeding or under-feeding, thereby improving the loading accuracy. When the number of springs passing through the detection area reaches the number of positioning rods in the receiving area, the limit mechanism promptly blocks the material conveyor to prevent subsequent springs from continuing to pass through the detection area, avoiding spring accumulation or confusion, and improving the stability of the entire loading system. This solution effectively coordinates the cooperation between the material conveyor and the receiving rack, ensuring that the springs are transferred from the material conveyor to the receiving rack in the predetermined order and quantity, providing a guarantee for the subsequent three-axis servo control of precise loading.

[0016] Preferably, the limiting mechanism includes a mounting bracket arranged at the middle position of the conveying channel and a limiting cylinder arranged at the mounting bracket. The limiting cylinder is located directly above the conveying channel and is arranged vertically downward. The limiting cylinder blocks the moving path of the spring by extending downward.

[0017] By adopting this technical solution, the limiter mechanism can precisely control the number of springs delivered. Specifically, the limiter cylinder extends downward to block the spring's path, ensuring that the number of springs in the feed channel at the detection area matches the number of positioning rods in the receiving area. This prevents too many or too few springs from entering subsequent processes, improving the accuracy and reliability of the feeding system.

[0018] Preferably, the three-axis moving mechanism includes: A support frame is provided on one side of the material tray, and a longitudinal slide rail is provided on the support frame, and a longitudinal sliding seat is slidably connected to the longitudinal slide rail; A longitudinal screw drive assembly is used to drive the longitudinal slide to move longitudinally, wherein the longitudinal slide is provided with a vertical slide rail, and the vertical slide rail is slidably connected to the vertical slide; A vertical screw drive assembly is used to drive the vertical movement slide to move vertically. The vertical movement slide is provided with a transverse slide rail. The transverse slide rail is slidably connected to the transverse slide. The transverse slide is fixedly connected to the material receiving rack. The transverse screw drive assembly is used to drive the transverse slide to move transversely.

[0019] By adopting the above technical solution, the axis moving mechanism realizes the precise movement of the material receiving rack in the longitudinal, vertical and horizontal directions. The support frame provides a stable installation foundation for the entire moving mechanism, ensuring the accuracy and stability during the movement. The longitudinal screw drive assembly drives the longitudinal slide to move along the longitudinal slide rail, realizing the longitudinal position adjustment of the material receiving rack; the vertical screw drive assembly drives the vertical slide to move along the vertical slide rail, realizing the vertical position adjustment of the material receiving rack; the transverse screw drive assembly drives the transverse slide to move along the transverse slide rail, realizing the transverse position adjustment of the material receiving rack. This three-axis linkage design can accurately move the spring to be ground to the top of the material hole of the material tray and place it vertically, improving the efficiency and accuracy of loading, while reducing the labor intensity of manual operation.

[0020] Preferably, the plurality of material holes on the material tray are circumferentially distributed at the outer edge of the material tray, and the material tray is rotatable.

[0021] By adopting this technical solution, the holes on the tray are distributed circumferentially along the outer edge of the tray, ensuring a uniform distribution of holes and improving the tray's space utilization. This also facilitates the three-axis motion mechanism to accurately position the springs into the corresponding holes. The tray's rotatable design allows for flexible adjustment of the hole positions, and in conjunction with the three-axis motion mechanism, it enables efficient spring loading, reduces idle travel in the robotic arm, and thus improves overall loading efficiency.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. The coordinated design of the steering roller and the positioning rod, combined with the precise drive of the three-axis moving mechanism, achieves the posture conversion and precise positioning of the spring from horizontal to vertical state, effectively solving the posture adjustment difficulty in traditional loading methods; 2. The locking mechanism uses an electromagnet to fix and unlock the spring, ensuring the stability of the spring during the material receiving and unloading process, and avoiding the risk of falling off due to vibration or posture changes; 3. The number of receiving areas corresponds to the number of feed channels, and the multi-position switching function of the steering roller can realize the simultaneous processing of multiple springs, which significantly improves the efficiency and automation level of the feeding system and meets the needs of complex spring processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of a three-axis servo feeding system for a spring grinding machine according to an embodiment of the present application.

[0024] Figure 2 This is a schematic diagram of the state of a positioning rod receiving material in a three-axis servo feeding system of a spring grinding machine according to an embodiment of the present application.

[0025] Explanation of the accompanying symbols: 1. Material conveyor; 2. Three-axis moving mechanism; 20. Horizontal slide; 21. Vertical screw drive assembly; 22. Horizontal screw drive assembly; 23. Support frame; 24. Longitudinal screw drive assembly; 25. Vertical slide; 26. Vertical slide; 27. Longitudinal slide; 28. Longitudinal slide; 29. ​​Horizontal slide; 3. Material receiving rack; 31. Steering drive; 32. Steering roller; 33. Locking mechanism; 34. Positioning rod; 4. Spring; 5. Material receiving area; 6. Limiting mechanism; 61. Mounting frame; 62. Limiting cylinder; 7. Material tray; 71. Material hole. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1-2 This application is described in further detail.

[0027] The present application embodiment discloses a three-axis servo feeding system for a spring grinding machine, referring to Figure 1 and Figure 2, including a feed channel 1, a material tray 7, a material receiving rack 3, a locking mechanism 33 and a three-axis moving mechanism 2, wherein the feed channel 1 cooperates with the material receiving rack 3 to realize the posture adjustment and precise positioning of the spring 4, the three-axis moving mechanism 2 realizes the longitudinal, transverse and vertical movement of the material receiving rack 3, and the locking mechanism 33 is used to control the fixing and unlocking actions of the spring 4, thereby realizing an efficient and accurate feeding process.

[0028] Specifically, the conveyor 1 uses a conveyor belt mechanism at its base to power the springs 4, while side guard plates serve as guides to enhance the stability of the springs 4. The feed end of the conveyor 1 connects to a workbench, which feeds the finished springs 4 horizontally into the conveyor. The conveyor 1 extends longitudinally, bringing the discharge end of the conveyor 1 close to the material tray 7. Furthermore, the material tray 7 can rotate about its own axis. The upper surface of the material tray 7 is provided with a plurality of material holes 71, distributed circumferentially around the outer edge of the material tray 7, to accommodate the springs 4 to be ground in a vertical position.

[0029] The receiving frame 3 is specifically an inverted U-shaped structure, with a steering roller 32 rotatably connected inside it, and the rotation axis of the steering roller 32 is arranged horizontally. The steering drive 31 adopts a stepping motor and is installed on the outside of the receiving frame 3. The output shaft of the stepping motor is coaxially fixedly connected to the steering roller 32 to drive the steering roller 32 to rotate around its own axis. The steering roller 32 is provided with a plurality of positioning rods 34, which are arranged along the radial direction of the steering roller 32 and circumferentially distributed on the outer peripheral surface of the steering roller 32. The positioning rod 34 can be a cylindrical metal rod or a positioning pin with a specific anti-slip surface treatment. When receiving the material, the positioning rod 34 to be received is rotated to face the discharge end of the conveyor 1 to receive the spring 4 sent from the conveyor 1. The position switching between the positioning rod 34 that has received the material and the positioning rod 34 to be received is achieved by rotating the steering roller 32.

[0030] In this embodiment, the outer circumference of the steering roller 32 is equipped with several electromagnets, each corresponding to a positioning rod 34. The electromagnets can be made of a high-permeability material, such as an electromagnetic coil wound from silicon steel sheets. When the positioning rod 34 is receiving material, the corresponding electromagnet is energized, magnetically securing the spring 4. When the positioning rod 34 is unloading material, the corresponding electromagnet is de-energized, unlocking the spring 4. This design not only enables rapid securing and unlocking of the spring 4, but also improves the flexibility and reliability of the entire system.

[0031] The outer circumference of the steering roller 32 is divided into several material receiving areas 5, spaced apart along the axis of the steering roller 32. The number of material receiving areas 5 matches the number of material conveyor channels 1, and they correspond one-to-one. Furthermore, each material receiving area 5 has at least two positioning rods 34, and the positioning rods 34 within each material receiving area 5 are equally spaced along the circumference of the steering roller 32.

[0032] In this embodiment, there are four positioning rods 34 in each material receiving area 5, and the angle between adjacent positioning rods 34 can be 90°, ensuring uniform distribution and efficient switching during the material receiving process.

[0033] In this embodiment, a detection area is divided at the conveyor channel 1, and a limiting mechanism 6 and a counting component are provided in the detection area. The counting component can be a photoelectric sensor, which is used to count the number of springs 4 passing through the detection area. When the number of springs 4 passing through the detection area is equal to the number of positioning rods 34 at the receiving area 5 corresponding to the conveyor channel 1, the limiting mechanism 6 blocks the conveyor channel 1, preventing the springs 4 behind the conveyor channel 1 from passing through the detection area. Among them, the limiting mechanism 6 includes a mounting bracket 61 arranged at the middle position of the conveyor channel 1 and a limiting cylinder 62 arranged at the mounting bracket 61. The limiting cylinder 62 is located directly above the conveyor channel 1 and is arranged vertically downward, blocking the moving path of the spring 4 by extending downward.

[0034] The three-axis moving mechanism 2 includes a support frame 23, a longitudinal slide 27, a longitudinal movement slide 28, a longitudinal screw drive assembly 24, a vertical slide 25, a vertical movement slide 26, a vertical screw drive assembly 21, a transverse slide, a transverse movement slide 29, and a transverse screw drive assembly 22. The support frame 23 is arranged on one side of the material tray 7. The longitudinal slide 27 is fixed to the support frame 23, and the longitudinal movement slide 28 is slidably connected to the longitudinal slide 27. The longitudinal screw drive assembly 24 includes a motor and a screw to drive the longitudinal movement slide 28 to move longitudinally. The longitudinal movement slide 28 is provided with a vertical slide 25, and the vertical movement slide 26 is slidably connected to the vertical slide 25. The vertical screw drive assembly 21 includes a motor and a screw to drive the vertical movement slide 26 to move vertically. The vertical movement slide 26 is provided with a transverse slide 20, and the transverse slide 20 is slidably connected to the transverse slide 29. The transverse slide 29 is fixedly connected to the material receiving rack 3. The transverse screw drive assembly 22 includes a motor and a screw, and is used to drive the transverse slide 29 to move transversely.

[0035] The tray 7 has a plurality of holes 71 circumferentially distributed along the outer edge of the tray 7, and the tray 7 is rotatable. For example, the tray 7 can be driven by a stepper motor to ensure that the holes 71 can be adjusted as needed, and the three-axis movement mechanism 2 can be used to accurately place the spring 4.

[0036] The implementation principle of this embodiment is as follows: the spring 4 to be ground is fed longitudinally in a horizontal state through the feed channel 1. The positioning rods 34 on the receiving rack 3 are precisely docked with the feed channel 1 through the rotation of the steering roller 32, completing the material receiving action of the spring 4. In addition, the locking mechanism 33 fixes the spring 4 by energizing the electromagnet to ensure the stability of the material receiving. After all the positioning rods 34 at the steering roller 32 are connected with the spring 4, the three-axis moving mechanism 2 accurately moves the spring 4 to the top of the material hole 71 of the feeding tray 7 through longitudinal, transverse and vertical movement and inserts it vertically. Among them, the locking mechanism 33 unlocks the spring 4 by de-energizing the electromagnet, ensuring that the spring 4 is smoothly placed into the material hole 71, completing the entire feeding process. This system not only improves feeding efficiency and accuracy, but also reduces labor intensity, providing strong support for automated production in the spring 4 processing industry.

[0037] Example 2 The difference between this embodiment and the above embodiments is that specific loading method steps are added to further optimize the loading process.

[0038] The specific steps are as follows: S1, start the conveyor 1, and send the spring 4 to be ground longitudinally in a horizontal state. When it passes through the detection area, the counting component starts counting.

[0039] S2: When the count reaches the set value, the limit mechanism 6 is activated, and the limit cylinder 62 extends downward, blocking the movement path of the spring 4 of the conveyor 1, thereby preventing the rear spring 4 from passing through the detection area. At this time, the receiving frame 3 and the positioning rod 34 are in the initial position, and the positioning rod 34 is in a horizontal state, waiting for the spring 4 to approach at the discharge end of the conveyor 1.

[0040] S3. In the present application, a proximity switch is installed at the end of each positioning rod 34. When the proximity switch detects a proximity signal, it can be determined that the spring 4 has been partially inserted into the positioning rod 34. When the spring 4 enters the positioning rod 34, the proximity switch sends a signal to the controller of the device. The controller sends a working instruction to the locking mechanism 33, which starts the locking mechanism 33, energizes the electromagnet, and attracts the spring 4. Under its attraction, the end of the spring 4 quickly reaches the electromagnet on the surface of the steering roller 32, and the spring 4 is magnetically fixed. Then, the steering drive 31 is started and rotated to switch the position between the positioning rod 34 that has received the material (with the spring 4) and the positioning rod 34 to be received (without the spring 4), so that the positioning rod 34 to be received is aligned with the discharge end of the conveyor 1. The above positioning rod 34 material receiving action and the electromagnet attraction and fixing action are repeated until all the positioning rods 34 on the steering roller 32 are covered with the spring 4.

[0041] S4, the three-axis moving mechanism 2 drives the receiving rack 3 to move above the material tray 7, and through the rotation of the steering roller 32, the positioning rod 34 of the material to be discharged (with a spring 4) is adjusted to be just above the material hole 71 of the material tray 7.

[0042] S5, the locking mechanism 33 stops working, the electromagnet is powered off, and the spring 4 falls into the material hole 71 of the material tray 7.

[0043] S6, through the rotation of the steering roller 32 to achieve the position switching between the positioning rod 34 of the material that has been discharged (not covered with the spring 4) and the positioning rod 34 to be discharged (covered with the spring 4), so that the positioning rod 34 to be discharged (covered with the spring 4) is cut to the vertical downward state, and then the material tray 7 is rotated so that the next material hole 71 is transferred to; the discharge area of ​​the material tray 7, that is, the material hole 71 is opposite to the positioning rod 34 to be discharged (covered with the spring 4), and then the discharging action of the positioning rod 34 and the locking mechanism 33 is continued to achieve the purpose of discharging the next spring 4. When the springs 4 at all the positioning rods 34 on the steering roller 32 are lowered, the material receiving frame 3 is transferred to the initial state through the three-axis moving mechanism 2, and waits for the spring 4 to approach at the discharge end position of the conveyor channel 1. At this time, the limit mechanism 6 opens the conveyor channel 1, the counting component data is reset, and counting starts from zero to complete the subsequent material receiving action of all the positioning rods 34 at the steering roller 32.

[0044] S8, repeat the above steps until all springs 4 are loaded.

[0045] The implementation principle of this embodiment is: through specific loading method steps, the loading process is further clarified, the loading efficiency and accuracy are improved, and the stability and reliability of the system are ensured.

[0046] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A three-axis servo feeding system for a spring grinding machine, characterized in that: include: A feeding channel (1) is used to feed the spring (4) to be ground longitudinally in a horizontal state; A material tray (7), wherein the material tray (7) is provided with a plurality of material holes (71) for receiving the spring (4) to be ground in a vertical state; A material receiving frame (3), wherein the material receiving frame (3) is rotatably connected to a transverse steering roller (32) and is provided with a steering drive member (31) for driving the steering roller (32) to rotate, wherein the steering roller (32) is provided with a plurality of positioning rods (34) along its own radial direction for the spring (4) to be sleeved, wherein the plurality of positioning rods (34) are circumferentially distributed on the outer peripheral surface of the steering roller (32), and when receiving materials, the positioning rod (34) to be received is rotated to face the discharge end of the conveying channel (1) to receive the spring (4) sent out from the discharge end of the conveying channel (1), and the position switching between the positioning rod (34) to be received and the positioning rod (34) to be received is achieved by rotating the steering roller (32); A locking mechanism (33) for independently controlling the fixing and unlocking actions of the spring (4) at each positioning rod (34); The three-axis moving mechanism (2) is used to drive the receiving frame (3) to move longitudinally, transversely and vertically, so as to move the spring (4) to be ground to the top of the material hole (71) of the material tray (7) and vertically place it, and realize the position switching between the positioning rod (34) of the material to be discharged and the positioning rod (34) of the material to be discharged by the rotation of the steering roller (32), so as to complete the lowering action of the spring (4) at each positioning rod (34) at the steering roller (32).

2. The three-axis servo feeding system for a spring grinding machine according to claim 1, characterized in that: The locking mechanism (33) includes a plurality of electromagnets arranged on the outer peripheral surface of the steering roller (32), and the plurality of electromagnets correspond to the plurality of positioning rods (34) one by one. When the positioning rods (34) are in a material receiving action, the corresponding electromagnets are energized to magnetically fix the spring (4); when the positioning rods (34) are in a material discharging action, the corresponding electromagnets are de-energized to unlock the spring (4).

3. The three-axis servo feeding system for a spring grinding machine according to claim 1, characterized in that: A plurality of material receiving areas (5) are divided on the outer peripheral surface of the steering roller (32), and the plurality of material receiving areas (5) are distributed at intervals along the axial direction of the steering roller (32). The number of the material receiving areas (5) is consistent with the number of the material conveying channels (1) and corresponds one to one. There are no less than two positioning rods (34) at each of the material receiving areas (5), and the plurality of positioning rods (34) in the material receiving areas (5) are distributed at equal intervals along the circumferential direction of the steering roller (32).

4. The three-axis servo feeding system for a spring grinding machine according to claim 3, characterized in that: The included angle between adjacent positioning rods (34) in each material receiving area (5) is 90°.

5. The three-axis servo feeding system for a spring grinding machine according to claim 3, characterized in that: The conveyor channel (1) is divided into a detection area, and a limit mechanism (6) and a counting component are provided at the detection area. The counting component is used to count the number of springs (4) passing through the detection area. When the number of springs (4) passing through the detection area is equal to the number of positioning rods (34) at the receiving area (5) corresponding to the conveyor channel (1), the limit mechanism (6) blocks the conveyor channel (1) to prevent the springs (4) behind the conveyor channel (1) from passing through the detection area.

6. The three-axis servo feeding system for a spring grinding machine according to claim 5, characterized in that: The limiting mechanism (6) comprises a mounting frame (61) arranged at a middle position of the conveying channel (1) and a limiting cylinder (62) arranged at the mounting frame (61); the limiting cylinder (62) is located directly above the conveying channel (1) and is arranged vertically downward; the limiting cylinder (62) blocks the moving path of the spring (4) by extending downward.

7. The three-axis servo feeding system for a spring grinding machine according to claim 1, characterized in that: The three-axis moving mechanism (2) comprises: A support frame (23), the support frame (23) is arranged on one side of the material tray (7), a longitudinal slide rail (27) is provided on the support frame (23), and a longitudinal sliding seat (28) is slidably connected to the longitudinal slide rail (27); A longitudinal screw drive assembly (24) is used to drive a longitudinal sliding seat (28) to move longitudinally, wherein the longitudinal sliding seat (28) is provided with a vertical slide rail (25), and a vertical sliding seat (26) is slidably connected to the vertical slide rail (25); The vertical screw drive assembly (21) is used to drive the vertical sliding seat (26) to move vertically. The vertical sliding seat (26) is provided with a transverse slide rail (20). The transverse slide rail (20) is slidably connected to a transverse sliding seat (29). The transverse sliding seat (29) is fixedly connected to the material receiving frame (3).

8. Transverse screw drive assembly (22), used to drive the transverse slide (29) to move transversely.

9. The three-axis servo feeding system for a spring grinding machine according to claim 1, characterized in that: The plurality of material holes on the material tray are circumferentially distributed at the outer edge of the material tray, and the material tray is rotatable.

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