Numerical control lathe feeding device

Abstract

The utility model discloses a numerical control lathe feeding device which comprises a supporting bottom plate, one end of the supporting bottom plate is connected with a bottom supporting plate, a supporting sliding block is arranged on the supporting bottom plate in the axial direction of the supporting bottom plate, a translation sliding rail is connected to the supporting sliding block in a sliding mode, one end of the translation sliding rail penetrates through the bottom supporting plate, and the upper surface of the other end of the translation sliding rail is connected with a mounting plate. The end, away from the bottom supporting plate, of the mounting plate is connected with a material pushing-in mechanism, the end, close to the bottom supporting plate, of the mounting plate is connected with the piston end of a second air cylinder, the cylinder barrel end of the second air cylinder is connected with the supporting bottom plate in a sleeving mode, and a material supporting mechanism is arranged above the mounting plate. The feeding device disclosed by the utility model can replace manual feeding, so that the processing efficiency is greatly improved, and meanwhile, the labor cost is saved.

Description

Technical Field

[0001] This utility model belongs to the technical field of feeding devices, specifically relating to a feeding device for CNC lathes. Background Technology

[0002] A CNC lathe is a high-precision, high-efficiency automated machine tool that automatically processes parts according to a pre-programmed machining program. During the process, the machining process route, process parameters, tool movement trajectory, displacement, cutting parameters, and auxiliary functions are written into a machining program sheet according to the instruction codes and program format specified by the CNC machine tool. The contents of this program sheet are then recorded on a control medium and input into the CNC device of the CNC machine tool. CNC lathes are mainly used for cutting internal and external cylindrical surfaces, internal and external conical surfaces with arbitrary cone angles, complex rotating internal and external curved surfaces, and cylindrical and conical threads of shaft or disc-shaped parts. They can also perform various processes such as grooving, drilling, reaming, boring, and reaming. However, manual feeding is required during the cutting process of CNC machine tools, which affects processing efficiency and increases labor costs. Therefore, it is necessary to design a CNC lathe feeding device to replace manual feeding for automatic feeding, thereby improving processing efficiency and reducing labor costs. Utility Model Content

[0003] The purpose of this invention is to provide a feeding device for CNC lathes, which solves the problem of low processing efficiency and high labor costs caused by the need for manual feeding during the processing of CNC machine tools.

[0004] The technical solution adopted by this utility model is a CNC lathe feeding device, including a support base plate, one end of which is connected to a bottom support plate, a support slider is provided on the support base plate along its axial direction, a translation slide rail is slidably connected to the support slider, one end of the translation slide rail passes through the bottom support plate, and the upper surface of the other end of the translation slide rail is connected to a mounting plate, the end of the mounting plate away from the bottom support plate is connected to a material pushing mechanism, the end of the mounting plate near the bottom support plate is connected to the piston end of a second cylinder, the cylinder end of the second cylinder is sleeved with the support base plate, and a material support mechanism is provided above the mounting plate.

[0005] The feature of this utility model is that,

[0006] The material feeding mechanism includes a first tooling, one side of the top of the first tooling is connected to the end of the mounting plate, and a second tooling is embedded on the other side of the top of the first tooling. The second tooling is provided with an arc-shaped groove. A connecting plate is connected to the side wall of the first tooling. The connecting plate is sleeved with the cylinder of the first cylinder. A push head is connected to the piston end of the first cylinder. The push head is located in the arc-shaped groove.

[0007] The arc-shaped groove is set perpendicular to the axis of the translation slide rail.

[0008] The material support mechanism includes a slide base plate, a first side plate connected to one side of the slide base plate, a second side plate connected to the other side of the slide base plate, a slide upright plate connected to the end of the slide base plate near the material pushing mechanism, a first side upright plate connected to one side of the slide upright plate, a second side upright plate connected to the other side of the slide upright plate, the first side plate connected to the first side upright plate, the second side plate connected to the second side upright plate, the bottom end of the slide upright plate being located directly above the side of the arc groove near the mounting plate, the bottom of the slide base plate being connected to one end of a bottom support rod, the other end of the bottom support rod being connected to the bottom support plate, a first limiting strip being provided on the opposite sidewalls of the first side plate and the second side plate, a second limiting strip being provided on the opposite sidewalls of the first side upright plate and the second side upright plate, and the first limiting strip and the second limiting strip on the same side being connected.

[0009] The side wall of the first side plate away from the second side plate is connected to one end of the side support plate, and the other end of the side support plate is connected to the side wall of the supporting base plate.

[0010] The angle between the bottom plate of the slide and the horizontal plane is an acute angle.

[0011] The distance between the bottom of the slide rail plate and the mounting plate is less than the diameter of the material.

[0012] The distance between each first limiting strip and the bottom plate of the slide is no more than twice the diameter of the material, and the distance between each second limiting strip and the vertical plate of the slide is the same as the diameter of the material.

[0013] The curvature of the arc groove is equal to the curvature of the outer surface of the material.

[0014] The sliding rail passes through one end of the bottom support plate and is connected to a limit frame.

[0015] The beneficial effects of this utility model are:

[0016] (1) The CNC lathe feeding device of this utility model can accurately push the material into the feed port of the CNC lathe by setting a material pushing mechanism, eliminating the need for manual feeding mechanism, greatly improving the material processing efficiency, saving labor costs, and increasing safety.

[0017] (2) The CNC lathe feeding device of this utility model can limit the material by setting a material support mechanism, ensuring that the material can roll down one by one according to the number of times, and can avoid the material falling off. The material only needs to be put into the material support mechanism in sequence, and the material can roll down to the target position by itself. The operation is simple and greatly improves the work efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the CNC lathe feeding device of this utility model;

[0019] Figure 2This is a side view of the CNC lathe feeding device of this utility model;

[0020] Figure 3 for Figure 1 A magnified view of a portion of point A in the middle.

[0021] In the diagram, 1. Support base plate, 2. Support slider, 3. Translation slide rail, 4. Mounting plate, 5. First tooling, 6. Square protrusion, 7. Second tooling, 8. Connecting plate, 9. First cylinder, 10. Push head, 11. Bottom support plate, 12. Bottom support rod, 13. Slide rail base plate, 14. First side plate, 15. Second side plate, 16. First limiting strip, 17. Side support plate, 18. Second cylinder, 19. Connecting joint, 20. Limiting frame, 21. Arc groove, 22. Slide rail upright plate, 23. First side upright plate, 24. Second side upright plate, 25. Second limiting strip. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0023] Example 1

[0024] This utility model relates to a feeding device for CNC lathes, the structure of which is as follows: Figure 1 and Figure 2 As shown, the system includes a supporting base plate 1, one end of which is connected to a bottom support plate 11. The bottom support plate 11 is perpendicular to the supporting base plate 1. Multiple supporting sliders 2 are arranged on the supporting base plate 1 along its axial direction. Each supporting slider 2 is bolted to the supporting base plate 1. A translation slide rail 3 is slidably connected to each of the multiple supporting sliders 2, allowing the slide rail 3 to slide on the sliders 2. One end of the translation slide rail 3 passes through the bottom support plate 11, and a limit frame 20 is connected to the end of the translation slide rail 3 passing through the bottom support plate 11. When the translation slide rail 3 moves away from the bottom support plate 11, the limit frame 20 limits the end of the translation slide rail 3, preventing it from moving too far. The slide rail 3 stops moving. The other end of the slide rail 3 is connected to the mounting plate 4. The end of the mounting plate 4 away from the bottom support plate 11 is connected to the material feeding mechanism. The material feeding mechanism is used to accurately feed the material into the feed port of the CNC lathe for processing. The end of the mounting plate 4 near the bottom support plate 11 is connected to the piston end of the second cylinder 18. The cylinder end of the second cylinder 18 is sleeved with the bottom support plate 11, that is, the cylinder end of the second cylinder 18 passes through the bottom support plate 11. The cylinder of the second cylinder 18 is supported and fixed by the bottom support plate 11. A material support mechanism is provided above the mounting plate 4. The material support mechanism is used to transport the material to the material feeding mechanism.

[0025] The working principle of this embodiment is as follows:

[0026] The materials are sequentially placed into the material support mechanism and rolled into the material feeding mechanism. At this time, the second cylinder 18 is activated, pushing the mounting plate 4 to move. The mounting plate 4 then moves the translation slide rail 3 together until the limit frame 20 contacts the side wall of the bottom support plate 11, at which point the translation slide rail 3 is stopped. At this point, the material feeding mechanism is aligned with the feed port of the CNC machine tool. The material feeding mechanism is then activated to feed the materials into the feed port of the CNC machine tool. As the first material is fed into the CNC lathe, the second material rolls onto the upper surface of the mounting plate 4, and the feeding of the first material is completed. Then, the second cylinder 18 is retracted, causing the mounting plate 4 to move in the opposite direction. The mounting plate 4 then moves the material pushing mechanism and the translation slide rail 3 in the opposite direction. The translation slide rail 3 continuously passes through the bottom support plate 11, and the limit frame 20 moves away from the bottom support plate 11. When the end of the material pushing mechanism contacts the end of the support base plate 1, the material pushing mechanism is limited and stops moving. At this time, the second material falls into the material pushing mechanism. The feeding process of the first material is repeated, and the feeding of the second material is completed. This process is repeated until all materials are fed.

[0027] Example 2

[0028] This utility model relates to a feeding device for CNC lathes, the structure of which is as follows: Figure 1 and Figure 2 As shown, it includes a support base plate 1, one end of which is connected to a bottom support plate 11. The bottom support plate 11 is perpendicular to the support base plate 1. Multiple support sliders 2 are arranged on the support base plate 1 along its axial direction. Translation slide rails 3 are slidably connected to the multiple support sliders 2. The translation slide rails 3 can slide on the multiple sliders 2. One end of the translation slide rail 3 passes through the bottom support plate 11 and is connected to a limit frame 20. The upper surface of the other end of the translation slide rail 3 is connected to a mounting plate 4. The end of the mounting plate 4 away from the bottom support plate 11 is connected to a material pushing mechanism. The end of the mounting plate 4 near the bottom support plate 11 is connected to the piston end of the second cylinder 18. The cylinder end of the second cylinder 18 is sleeved with the bottom support plate 11, that is, the cylinder of the second cylinder 18 is supported and fixed by the bottom support plate 11. A material support mechanism is arranged above the support mounting plate 4.

[0029] Furthermore, the material feeding mechanism includes a first fixture 5, the top side of which is bolted to the end of the mounting plate 4. A second fixture 7 is embedded on the other side of the top of the first fixture 5. An arc-shaped groove 21 is provided on the second fixture 7 along its axis. The arc-shaped groove 21 is perpendicular to the axis of the translation slide rail 3. The arc-shaped groove 21 is used to hold material. The movement of the translation slide rail 3 and the mounting plate 4 drives the second fixture 7 to move, thereby moving the material to a position corresponding to the feed inlet of the CNC lathe. Figure 3As shown, the side wall of the first tooling 5 is connected to a connecting plate 8, which is sleeved with the cylinder of the first cylinder 9. The piston end of the first cylinder 9 is connected to a pusher head 10, which is located in the arc-shaped groove 21.

[0030] The working principle of this embodiment is as follows:

[0031] Initially, the end of the first tooling 5 contacts the support base plate 1. At this time, the bottom end of the material support mechanism corresponds to the arc-shaped groove 21, allowing the material to roll into the arc-shaped groove 21. After the material falls into the arc-shaped groove 21, the second cylinder 18 is activated, pushing the mounting plate 4 to move. The mounting plate 4 then moves the translation slide rail 3 together until the limit frame 20 contacts the side wall of the bottom support plate 11. The translation slide rail 3 is then stopped moving. At this time, the arc-shaped groove 21 is aligned with the feed port of the CNC machine tool, and the material is aligned with the feed port of the CNC machine tool. Then, the first cylinder 9 is activated, driving the push head 10 to push the material along the arc-shaped groove 21 into the feed port of the CNC lathe, thus completing the feeding of the first material. The feeding of the first material is now complete. Then, the second cylinder 18 is retracted, causing the mounting plate 4 to move in the opposite direction. The mounting plate 4 then moves the first tooling 5 and the translation slide rail 3 in the opposite direction. The first tooling 5 moves the second tooling 7. During the movement, the translation slide rail 3 continuously passes through the bottom support plate 11, and the limit frame 20 moves away from the bottom support plate 11. When the end of the first tooling 5 contacts the end of the support base plate 1, the position of the first tooling 5 is limited, and the movement stops. During the process of the first material being fed into the CNC lathe, the second material has rolled onto the upper surface of the mounting plate 4 and is waiting. At this time, the second material falls into the arc groove 21. The feeding process of the first material is repeated, and the feeding of the second material is completed. This process is repeated until all materials are fed.

[0032] Example 3

[0033] This utility model relates to a feeding device for CNC lathes, the structure of which is as follows: Figure 1 and Figure 2As shown, it includes a support base plate 1, one end of which is connected to a bottom support plate 11. The bottom support plate 11 is perpendicular to the support base plate 1. Multiple support sliders 2 are arranged on the support base plate 1 along its axial direction. Translation slide rails 3 are slidably connected to the multiple support sliders 2. The translation slide rails 3 can slide on the multiple sliders 2. One end of the translation slide rail 3 passes through the bottom support plate 11 and is connected to a limit frame 20. The other end of the translation slide rail 3 is connected to an mounting plate 4. The end of the mounting plate 4 away from the bottom support plate 11 is connected to a material pushing mechanism. The end of the mounting plate 4 near the bottom support plate 11 is connected to one end of a connector 19. The other end of the connector 19 is connected to the piston end of a second cylinder 18. The cylinder end of the second cylinder 18 is sleeved with the bottom support plate 11, that is, the cylinder of the second cylinder 18 is supported and fixed by the bottom support plate 11. A material support mechanism is arranged above the support mounting plate 4.

[0034] Furthermore, the material feeding mechanism includes a first tooling 5, the top side of which is bolted to the end of the mounting plate 4. A rectangular groove is provided on the lower surface of the mounting plate 4, and a rectangular protrusion 6 is provided on the upper surface of the connection between the first tooling and the mounting plate 4. The rectangular protrusion 6 is embedded in the rectangular groove, thereby further limiting the positioning of the mounting plate 4 and the first tooling 5. A second tooling 7 is embedded on the other side of the top of the first tooling 5. An arc-shaped groove 21 is provided on the second tooling 7 along its axis. The arc-shaped groove 21 is perpendicular to the axis of the translation slide rail 3 and is used to hold material. The movement of the translation slide rail 3 and the mounting plate 4 drives the second tooling 7 to move, thereby moving the material to a position corresponding to the feed inlet of the CNC lathe. Figure 3 As shown, the side wall of the first tooling 5 is connected to a connecting plate 8, which is sleeved with the cylinder of the first cylinder 9. The piston end of the first cylinder 9 is connected to a pusher head 10, which is located in the arc-shaped groove 21.

[0035] Furthermore, the material support mechanism includes a slide base plate 13, with a first side plate 14 connected to one side of the slide base plate 13, the first side plate 14 being perpendicularly connected to the slide base plate 13. A second side plate 15 is connected to the other side of the slide base plate 13, the second side plate 15 being perpendicularly connected to the slide base plate 13. A slide upright plate 22 is connected to one end of the slide base plate 13 near the material pushing mechanism. The slide upright plate 22 is vertically arranged, that is, perpendicular to the mounting plate 4. A first side upright plate 23 is connected to one side of the slide upright plate 22. The side upright plate 23 is perpendicularly connected to the slide rail upright plate 22. A second side upright plate 24 is connected to the other side of the slide rail upright plate 22. The second side upright plate 24 is perpendicularly connected to the slide rail upright plate 22. The first side plate 14 is connected to the first side upright plate 23, and the second side plate 15 is connected to the second side upright plate 24. When the end of the first tooling 5 contacts the end of the supporting base plate 1, the bottom end of the slide rail upright plate 22 is positioned directly above the side of the arc-shaped groove 21 near the mounting plate 4, ensuring that the material falls precisely into the arc-shaped groove 21. When the mounting plate 4 is... When the limit frame 20 is pushed to contact the bottom support plate 11, the bottom end of the slide rail upright plate 22 is above the mounting plate 4. The bottom of the slide rail bottom plate 13 is connected to one end of the bottom support rod 12, and the other end of the bottom support rod 12 is connected to the bottom support plate 11. The bottom support rod 12 is used to support and fix the slide rail bottom plate. The first side plate 14 and the second side plate 15 are each provided with a first limit strip 16, and the two first limit strips 16 are symmetrically arranged. The first side upright plate 23 and the second side upright plate 24 are each provided with a second limit strip. The first limiting bar 16 and the second limiting bar 25 are symmetrically arranged. The first limiting bar 16 and the second limiting bar 25 on the same side are connected. The first limiting bar 16 and the second limiting bar 25 are used to limit the material to ensure that it rolls down one by one in sequence and can roll down into the arc groove 21. At the same time, the second limiting bar 25 can ensure that the next material can fall onto the mounting plate 4 during the feeding of the previous material and ensure that the material does not move, so as to limit the material and facilitate the material to enter the arc groove 21.

[0036] The working principle of this embodiment is as follows:

[0037] Initially, the end of the first tooling 5 contacts the supporting base plate 1. At this time, the bottom end of the slide rail upright plate 22 corresponds to the side of the arc groove 21 near the bottom support plate 11. The material is placed from the end of the slide rail base plate 13 away from the material pushing mechanism between the slide rail base plate 13 and the first limiting strip 16. The material can then roll down along the slide rail base plate 13 and the slide rail upright plate 22. The limiting strip 25 allows the material to roll into the arc groove 21. When the material falls into the arc groove 21... After the material enters the arc-shaped groove 21, the second cylinder 18 is activated, pushing the mounting plate 4 to move. The mounting plate 4 then moves the translation slide rail 3 together until it contacts the side wall of the limit frame 20 and the bottom support plate 11. The translation slide rail 3 is then stopped moving. At this time, the arc-shaped groove 21 is aligned with the feed port of the CNC machine tool, and the material is aligned with the feed port of the CNC machine tool. Then, the first cylinder 9 is activated, driving the push head 10 to push the material along the arc-shaped groove 21 to the feed port of the CNC lathe. Once the first material is fed into the machine tool, the second cylinder 18 retracts, causing the mounting plate 4 to move in the opposite direction. The mounting plate 4 then moves the first tooling 5 and the translation slide rail 3 in the opposite direction. The first tooling 5 moves the second tooling 7. During the movement, the translation slide rail 3 continuously passes through the bottom support plate 11, and the limit frame 20 moves away from the bottom support plate 11. When the end of the first tooling 5 contacts the end of the support base plate 1, the position of the first tooling 5 is limited, and the movement stops. Since the second material has already rolled down along the slide rail base plate 13 and slide rail upright plate 22 to the upper surface of the mounting plate 4 while the first material is being fed into the CNC lathe, the second material can roll into the arc groove 21 when the end of the first tooling 5 contacts the end of the support base plate 1. The feeding process of the first material is repeated to complete the feeding of the second material. This process is repeated in sequence to complete the feeding of all materials.

[0038] Example 4

[0039] Based on embodiment 3, the side wall of the first side plate 14 away from the second side plate 15 is connected to one end of the side support plate 17, and the other end of the side support plate 17 is connected to the side wall of the support base plate 1. By setting the side support plate 17, the material support mechanism can be further fixed to improve the stability of the material support mechanism and prevent the end of the material support mechanism near the first tooling 5 from shaking, thereby ensuring that the material rolls smoothly into the arc groove 21.

[0040] Example 5

[0041] Based on embodiment 4, the angle between the slide base plate 13 and the horizontal plane is an acute angle. This setting ensures that the material placed in the slide base plate 13 and the first limiting strip 16 can roll down. This setting does not require external force to make the material roll down, making it easy to operate.

[0042] Example 6

[0043] Based on embodiment 5, the distance between the bottom end of the slide rail plate 22 and the mounting plate 4 is less than the diameter of the material, so as to prevent the material from rolling down to other positions through the gap between the slide rail plate 22 and the mounting plate 4. This setting can ensure the limiting of the material, so that the material waits at the limited position for the arc groove 21 to move to its lower position and roll down into the arc groove 21.

[0044] The distance between each first limiting strip 16 and the slide bottom plate 13 is no more than twice the diameter of the material. This setting can prevent materials located at a higher position from rolling onto materials located at a lower position, i.e., the materials overlap, thereby ensuring that the materials can be arranged one by one and roll down in sequence.

[0045] The distance between each second limiting bar 25 and the slide rail plate 22 is the same as the diameter of the material, that is, the material can just roll down between the second limiting bar 25 and the slide rail plate 22, while avoiding the material from moving, thereby ensuring that the material can fall accurately into the arc groove 21.

[0046] Meanwhile, the distance between the bottom of each second limiting bar 25 and the deepest part of the arc groove 21 is greater than the diameter of the material, and the distance between the bottom of each second limiting bar 25 and the mounting plate 4 is less than the diameter of the material. This setting can ensure that the material is limited when it rolls onto the mounting plate 4 to prevent it from rolling to other positions. At the same time, when the material is in the arc groove 21 and is fed into the CNC lathe, the second limiting bar 25 is prevented from blocking the material, thus ensuring that the material can pass through normally.

[0047] The internal width of the slide base plate 13 and the slide upright plate 22 is consistent with the length of the material, which can prevent the material from tilting.

[0048] The arc of the arc groove 21 is equal to the arc of the outer circle of the material, that is, the wall of the arc groove 21 fits the outer circle of the material, which can prevent deviation during the pushing process and thus ensure accurate feeding into the feed port of the CNC lathe.

Claims

1. A feeding device for a CNC lathe, characterized in that, The system includes a support base plate (1), one end of which is connected to a bottom support plate (11). A support slider (2) is provided on the support base plate (1) along its axial direction. A translation slide rail (3) is slidably connected to the support slider (2). One end of the translation slide rail (3) passes through the bottom support plate (11). An installation plate (4) is connected to the upper surface of the other end of the translation slide rail (3). A material pushing mechanism is connected to the end of the installation plate (4) away from the bottom support plate (11). The end of the installation plate (4) near the bottom support plate (11) is connected to the piston end of a second cylinder (18). The cylinder end of the second cylinder (18) is sleeved with the support base plate (1). A material support mechanism is provided above the installation plate (4).

2. The CNC lathe feeding device according to claim 1, characterized in that, The material feeding mechanism includes a first tooling (5), one side of the top of the first tooling (5) is connected to the end of the mounting plate (4), and a second tooling (7) is embedded on the other side of the top of the first tooling (5). The second tooling (7) is provided with an arc groove (21). A connecting plate (8) is connected to the side wall of the first tooling (5). The connecting plate (8) is sleeved with the cylinder of the first cylinder (9). The piston end of the first cylinder (9) is connected to a push head (10), and the push head (10) is disposed in the arc groove (21).

3. The CNC lathe feeding device according to claim 2, characterized in that, The arc-shaped groove (21) is set perpendicular to the axis of the translation slide rail (3).

4. The CNC lathe feeding device according to claim 2, characterized in that, The material support mechanism includes a slide base plate (13), a first side plate (14) connected to one side of the slide base plate (13), a second side plate (15) connected to the other side of the slide base plate (13), a slide upright plate (22) connected to one end of the slide base plate (13) near the material pushing mechanism, a first side upright plate (23) connected to one side of the slide upright plate (22), a second side upright plate (24) connected to the other side of the slide upright plate (22), the first side plate (14) connected to the first side upright plate (23), and the second side plate (15) connected to the second side upright plate (24). The bottom end of the slide rail upright plate (22) is located directly above the side of the arc groove (21) near the mounting plate (4). The bottom of the slide rail bottom plate (13) is connected to one end of the bottom support rod (12), and the other end of the bottom support rod (12) is connected to the bottom support plate (11). The first side plate (14) and the second side plate (15) are each provided with a first limiting strip (16) on their opposite sidewalls. The first side upright plate (23) and the second side upright plate (24) are each provided with a second limiting strip (25) on their opposite sidewalls. The first limiting strip (16) and the second limiting strip (25) on the same side are connected.

5. The CNC lathe feeding device according to claim 4, characterized in that, The side wall of the first side plate (14) away from the second side plate (15) is connected to one end of the side support plate (17), and the other end of the side support plate (17) is connected to the side wall of the supporting base plate (1).

6. The CNC lathe feeding device according to claim 4, characterized in that, The angle between the slide bottom plate (13) and the horizontal plane is an acute angle.

7. The CNC lathe feeding device according to claim 4, characterized in that, The distance between the bottom end of the slide rail plate (22) and the mounting plate (4) is less than the diameter of the material.

8. The CNC lathe feeding device according to claim 4, characterized in that, The distance between each of the first limiting strips (16) and the slide bottom plate (13) is no greater than twice the diameter of the material, and the distance between each of the second limiting strips (25) and the slide vertical plate (22) is the same as the diameter of the material.

9. The CNC lathe feeding device according to claim 2, characterized in that, The arc of the arc groove (21) is equal to the arc of the outer surface of the material.

10. The CNC lathe feeding device according to claim 1, characterized in that, The translation slide rail (3) passes through one end of the bottom support plate (11) and is connected to the limit frame (20).

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