An automatic feeding system for a numerical control machine tool

By designing an automatic feeding system for CNC machine tools, and utilizing components such as electric push rods, material handling mechanisms, and clamping mechanisms, automatic feeding and processing of CNC machine tools are achieved. This solves the problems of low production efficiency and high labor intensity, adapts to the needs of mass production, and reduces equipment costs.

CN119748189BActive Publication Date: 2026-02-10YUNNAN RUNLIN PRECISION MASCH MFG CO LTD
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202510016601.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-01-06
Publication Date
2026-02-10
Estimated Expiration
2045-01-06

AI Technical Summary

Technical Problem

CNC machine tools require operators to constantly stop and clamp materials during the machining process, resulting in low production efficiency and high labor intensity. This problem is particularly prominent in mass production, and the high price also hinders their widespread adoption.

Method used

An automatic feeding system for CNC machine tools was designed, including a frame, electric push rod, material picking mechanism, feeding mechanism, clamping mechanism and clamping cone, etc. The system achieves automatic feeding and clamping of raw materials through the coordinated work of mechanical structures, and realizes automatic processing by combining the control of motors and cylinders.

Benefits of technology

It enables automatic feeding and processing of CNC machine tools, improves production efficiency, reduces labor intensity, adapts to the needs of mass production, and reduces equipment costs.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119748189B_ABST
    Figure CN119748189B_ABST
Patent Text Reader

Abstract

The application discloses a numerical control machine tool automatic feeding system, which comprises a rack, characterized in that the rack is fixedly connected with an electric push rod, the rack is fixedly connected with a top guide rod, and the push rod of the electric push rod is fixedly connected with a material taking mechanism; the rack is fixedly connected with an inclined chute, and the rack is fixedly connected with a feeding mechanism corresponding to the inclined chute; the rack is fixedly connected with a machining table, the machining table is fixedly connected with a horizontal module, the sliding block of the horizontal module is fixedly connected with a vertical module, the sliding block of the vertical module is connected with a mounting block, the mounting block is fixedly connected with a power motor, and the output shaft of the power motor is fixedly connected with a cutter. The application relates to the technical field of numerical control, in particular to a numerical control machine tool automatic feeding system. The application aims to provide a numerical control machine tool automatic feeding system, so that automatic feeding is realized during the machining of the numerical control machine tool, and automatic machining of raw materials is realized.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of CNC technology, and more specifically, to an automatic feeding system for CNC machine tools. Background Technology

[0002] Numerical Control Machine Tools (NC machine tools) are automated machine tools equipped with a program control system. Currently, the machining process for turning workpieces requires operators to constantly stop the machine and clamp the workpiece, resulting in low production efficiency and high labor intensity. The larger the batch size of parts, the more pronounced these problems of low production efficiency and high labor intensity become, causing significant inconvenience to users. Furthermore, their high price hinders widespread adoption and application.

[0003] Currently, there is a lack of equipment that enables automatic feeding during CNC machine tool processing, thereby achieving automatic processing of raw materials. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an automatic feeding system for CNC machine tools, which realizes automatic feeding during CNC machine tool processing, thereby realizing automatic processing of raw materials.

[0005] The present invention achieves its objective by employing the following technical solution:

[0006] An automatic feeding system for a CNC machine tool includes a frame, characterized in that: an electric push rod is fixedly connected to the frame; a top guide rod is fixedly connected to the frame; the push rod of the electric push rod is fixedly connected to a material handling mechanism; a sloping groove is fixedly connected to the frame; a feeding mechanism is fixedly connected to the frame corresponding to the sloping groove; a machining table is fixedly connected to the frame; a horizontal module is fixedly connected to the machining table; a slider of the horizontal module is fixedly connected to a vertical module; a slider of the vertical module is connected to a vertical module; a mounting block is fixedly connected to the vertical module; a power motor is fixedly connected to the mounting block; and a cutting tool is fixedly connected to the output shaft of the power motor; an L-plate is fixedly connected to the machining table; a motor is fixedly connected to the L-plate; the output shaft of the motor passes through the L-plate; a screw is fixedly connected to the output shaft of the motor; a moving plate is threadedly connected to the screw; the moving plate contacts the L-plate; and a circular hole block is bearing-connected to the moving plate; a circular ring is fixedly connected to the L-plate; and a clamping mechanism is provided inside the circular ring.

[0007] As a further limitation of this technical solution, the rotary clamping mechanism includes a mounting block, which is disposed within a ring. The mounting block is fixedly connected to a set of outer rods, which are fixedly connected to an outer ring. The outer ring is fixedly connected to a set of outer limiting rods. The mounting block is fixedly connected to a servo motor. The output shaft of the servo motor is fixedly connected to an inner block. The inner block is fixedly connected to a set of inner rods, which are fixedly connected to an inner ring. The inner ring is connected to a set of inner power rods. The set of outer limiting rods are rotatably connected to slide grooves. Each inner power rod is disposed in a corresponding slide groove. Each slide groove is fixedly connected to a mounting thin rod. Each mounting thin rod is fixedly connected to a mounting round seat. Each mounting round seat is fixedly connected to a clamping cone.

[0008] As a further limitation of this technical solution, the circular ring is fixedly connected to the cross plate, the cross plate is fixedly connected to the rotary motor, and the output shaft of the rotary motor passes through the cross plate and is fixedly connected to the mounting block.

[0009] As a further limitation of this technical solution, the L-plate is fixedly connected to symmetrical mounting vertical rods, and the symmetrical mounting vertical rods are respectively fixedly connected to the first stepped ring. The movable plate is fixedly connected to the L-connecting plate, and the L-connecting plate is fixedly connected to the second stepped ring. The first stepped ring and the second stepped ring are of the same model and are both provided with a set of evenly distributed stepped circular holes to realize the placement of raw materials of different models.

[0010] As a further limitation of this technical solution, the feeding mechanism includes a feeding cylinder, the frame is fixedly connected to the feeding cylinder, the piston rod of the feeding cylinder is fixedly connected to the mounting horizontal plate, the mounting horizontal plate is fixedly connected to the mounting vertical plate, the mounting vertical plate is fixedly connected to the baffle, and the mounting vertical plate is fixedly connected to a set of V-groove material platforms.

[0011] As a further limitation of this technical solution, the frame is fixedly connected to symmetrical guide rail covers, and the two ends of the mounting vertical plate are respectively set inside the corresponding guide rail covers.

[0012] As a further limitation of this technical solution, the material picking mechanism includes a material picking frame, the push rod of the electric push rod is fixedly connected to the material picking frame, the material picking frame is fixedly connected to a vertical electric push rod, the push rod of the vertical electric push rod is fixedly connected to a mounting plate, the mounting plate is fixedly connected to a large servo motor, the output shaft of the large servo motor is fixedly connected to a cross plate, and the cross plate is fixedly connected to a set of evenly distributed finger cylinders.

[0013] As a further limitation of this technical solution, the top guide rod passes through the material handling frame.

[0014] As a further limitation of this technical solution, the mounting large circular plate is fixedly connected to symmetrical guide vertical rods, and the symmetrical guide vertical rods pass through the material picking frame respectively.

[0015] As a further limitation of this technical solution, the circular hole block abuts against the end of the raw material, and the contact surface is made of hard rubber, which is rough and wear-resistant.

[0016] Compared with the prior art, the advantages and positive effects of the present invention are:

[0017] 1. The moving plate of this device drives the L-connecting plate, the second-step circular ring, and the circular hole block to move, allowing one end of the raw material to enter the circular hole of the circular hole block and the other end to enter the clamping cone assembly area, thus realizing the material entry into the circular hole block. The conical part of the clamping cone has a smooth slope to facilitate the entry of the raw material into the clamping cone assembly area, while the cylindrical part of the clamping cone has a rough surface to facilitate clamping. The circular hole block abuts against the end of the raw material, and the contact surface is made of hard rubber, which is rough and wear-resistant.

[0018] 2. This device uses an inclined chute. In the initial state, the V-chute material platform rises, blocking the end of the inclined chute, causing the V-chute material platform and baffle to move downwards, allowing the bottom material to slide into the V-chute material platform. Then, the feeding cylinder is controlled to extend, causing the mounting plate to block the remaining material, allowing the material to enter the finger cylinder area, facilitating material gripping and subsequent transfer. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 .

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 .

[0021] Figure 3 This is a partial three-dimensional structural diagram of the present invention. Figure 1 .

[0022] Figure 4 This is a partial three-dimensional structural diagram of the present invention. Figure 2 .

[0023] Figure 5 This is a partial three-dimensional structural diagram of the present invention. Figure 3 .

[0024] Figure 6 This is a partial three-dimensional structural diagram of the present invention. Figure 4 .

[0025] Figure 7 This is a partial three-dimensional structural diagram of the present invention. Figure 5 .

[0026] Figure 8 This is a partial three-dimensional structural diagram of the present invention. Figure 6 .

[0027] Figure 9 This is a partial three-dimensional structural diagram of the present invention. Figure 7 .

[0028] Figure 10 This is a partial three-dimensional structural diagram of the present invention. Figure 8 .

[0029] In the diagram: 1. Frame, 2. Material handling rack, 3. Vertical electric push rod, 4. Top guide rod, 5. Mounting large circular plate, 6. Electric push rod, 7. Power motor, 8. Cutting tool, 9. Vertical module, 10. Longitudinal module, 11. Mounting block, 12. Horizontal module, 13. Processing table, 15. Large servo motor, 16. Guide vertical rod, 17. Cross plate, 18. Finger cylinder, 19. Baffle, 20. V-groove material platform, 21. Mounting vertical plate, 22. Inclined groove, 24. Mounting horizontal plate, 25. Feeding cylinder, 26. Guide rail cover, 27. Rotary motor, 28. Cross plate, 29. Ring, 30. Mounting block, 31. First-step ring, 32. Mounting vertical rod, 33. Second-step ring, 34. L-connecting plate, 35. Circular hole block, 36. Moving plate, 37. Screw, 38. L-plate, 39. Motor, 41. Outer rod, 42. Outer ring, 43. Outer limit rod, 44. Clamping cone, 45. Mounting seat, 46. Mounting thin rod, 47. Inner ring, 48. Inner power rod, 49. Inner rod, 50. Inner block, 51. Servo, 52. Slide groove. Detailed Implementation

[0030] The following detailed description of a specific embodiment of the present invention is provided in conjunction with the accompanying drawings. However, it should be understood that the scope of protection of the present invention is not limited to the specific embodiment.

[0031] Example 1: The present invention includes a frame 7, a frame 1 fixedly connected to an electric push rod 6, a top guide rod 4 fixedly connected to the frame 1, and a material handling mechanism fixedly connected to the push rod of the electric push rod 6; a sloping groove 22 fixedly connected to the frame 1, and a feeding mechanism fixedly connected to the frame 1 corresponding to the sloping groove 22; a processing table 13 fixedly connected to the frame 1, a horizontal module 12 fixedly connected to the processing table 13, a slider of the horizontal module 12 fixedly connected to a vertical module 10, a slider of the vertical module 10 connected to a vertical module 9, and a slider of the vertical module 9 connected to a mounting plate. Block 11, the mounting block 11 is fixedly connected to the power motor 7, the output shaft of the power motor 7 is fixedly connected to the cutting tool 8; the processing table 13 is fixedly connected to the L plate 38, the L plate 38 is fixedly connected to the motor 39, the output shaft of the motor 39 passes through the L plate 38, the output shaft of the motor 39 is fixedly connected to the screw 37, the screw 37 is threadedly connected to the moving plate 36, the moving plate 36 contacts the L plate 38, the moving plate 36 is bearing connected to the circular hole block 35; the L plate 38 is fixedly connected to the ring 29, the ring 29 is provided with a rotary clamping mechanism.

[0032] The clamping mechanism includes a mounting block 30, which is disposed within the ring 29. The mounting block 30 is fixedly connected to a set of outer rods 41, which is fixedly connected to an outer ring 42. The outer ring 42 is fixedly connected to a set of outer limiting rods 43. The mounting block 30 is fixedly connected to a servo motor 51. The output shaft of the servo motor 51 is fixedly connected to an inner block 50. The inner block 50 is fixedly connected to a set of inner rods 49, which is fixedly connected to an inner ring 47. The inner ring 47 is connected to a set of inner power rods 48. The set of outer limiting rods 43 are rotatably connected to slide grooves 52. Each inner power rod 48 is disposed in a corresponding slide groove 52. Each slide groove 52 is fixedly connected to a mounting thin rod 46. Each mounting thin rod 46 is fixedly connected to a mounting seat 45. Each mounting seat 45 is fixedly connected to a clamping cone 44.

[0033] The L-plate 38 is fixedly connected to symmetrical mounting rods 32, and the symmetrical mounting rods 32 are respectively fixedly connected to the first stepped ring 31. The movable plate 36 is fixedly connected to the L-connecting plate 34, and the L-connecting plate 34 is fixedly connected to the second stepped ring 33. The first stepped ring 31 and the second stepped ring 33 are of the same model and are both provided with a set of evenly distributed stepped circular holes to realize the placement of raw materials of different models.

[0034] The feeding mechanism includes a feeding cylinder 25, which is fixedly connected to the frame 1. The piston rod of the feeding cylinder 25 is fixedly connected to the mounting horizontal plate 24, which is fixedly connected to the mounting vertical plate 21. The mounting vertical plate 21 is fixedly connected to the baffle 19, and the mounting vertical plate 21 is fixedly connected to a set of V-groove material platforms 20.

[0035] The material handling mechanism includes a material handling frame 2, the push rod of the electric push rod 6 is fixedly connected to the material handling frame 2, the material handling frame 2 is fixedly connected to a vertical electric push rod 3, the push rod of the vertical electric push rod 3 is fixedly connected to a mounting large circular plate 5, the mounting large circular plate 5 is fixedly connected to a large servo motor 15, the output shaft of the large servo motor 15 is fixedly connected to a cross plate 17, and the cross plate 17 is fixedly connected to a set of evenly distributed finger cylinders 18.

[0036] The top guide rod 4 passes through the material handling frame 2.

[0037] The circular hole block 35 abuts against the end of the raw material, and the contact surface is made of hard rubber, which is rough and wear-resistant.

[0038] The workflow of this embodiment is as follows:

[0039] In this embodiment, the mounting block 30 is fixedly connected to the ring 29.

[0040] In the initial state, the V-groove platform 20 rises up, blocking the end of the inclined groove 22.

[0041] The raw materials are placed sequentially on the inclined chute 22. The feeding cylinder 25 is controlled to retract, causing the mounting horizontal plate 24 to move the mounting vertical plate 21. The mounting vertical plate 21 then moves the V-trough material platform 20 and the baffle 19, causing the V-trough material platform 20 and the baffle 19 to move downwards, allowing the bottommost raw material to slide into the V-trough material platform 20. Then, the feeding cylinder 25 is controlled to extend, causing the mounting vertical plate 21 to block the remaining raw materials.

[0042] The vertical electric push rod 3 is extended, and the vertical electric push rod 3 drives the large circular plate 5, the large servo motor 15, the cross plate 17 and the finger cylinder 18 to move downward, so that the raw material enters the area of ​​the finger cylinder 18 and controls the raw material of the finger cylinder 18.

[0043] Control the retraction of the feeding cylinder 25 to allow the next raw material to enter the V-groove material platform 20.

[0044] Control the large servo motor 15 to rotate 90° and remove a raw material.

[0045] The electric push rod 6 is retracted, causing the entire material handling mechanism to move. This moves the material handling frame 2 along the top guide rod 4, positioning the material above the first stepped ring 31 and the second stepped ring 33. The vertical electric push rod 3 is then extended, activating the finger cylinder 18 to lower the material into contact with the first stepped ring 31 and the second stepped ring 33. The vertical electric push rod 3 is then retracted, and the electric push rod 6 is extended, resetting the material handling mechanism.

[0046] When raw material is placed in, it slides under the action of the ramps of the clamping cones 44 on both sides until it reaches the matching diameter of the first stepped ring 31 and the second stepped ring 33. The control motor 39 rotates, driving the screw 37 to rotate. The screw 37 drives the moving plate 36 to move, which in turn drives the L-connecting plate 34, the second stepped ring 33, and the circular hole block 35 to move. This allows one end of the raw material to enter the circular hole of the circular hole block 35, and the other end to enter the area formed by the clamping cones 44, thus accommodating the raw material in the circular hole block 35. The ramps of the conical part of the clamping cones 44 are smooth, while the cylindrical part is rough for easy clamping. The servo motor 51 is controlled to rotate, which in turn drives the inner block 50 to rotate. The inner block 50 drives the inner rod 49 and the inner ring 47 to rotate. The inner ring 47 drives the inner power rod 48 to swing within the slide groove 52. The inner power rod 48 drives the slide groove 52 to swing. The slide groove 52 drives the mounting rod 46, the mounting seat 45, and the clamping cone 44 to swing, so that the raw material contacts the mounting seat 45. The motor 39 is turned off, and the servo motor 51 is controlled to rotate in the opposite direction so that the clamping cone 44 clamps the raw material.

[0047] The vertical module 9, longitudinal module 10, and transverse module 12 are operated to control the rotation of the power motor 7, thereby enabling the cutting tool 8 to process the raw material.

[0048] Example 2: The ring 29 is fixedly connected to the cross plate 28, the cross plate 28 is fixedly connected to the rotary motor 27, and the output shaft of the rotary motor 27 passes through the cross plate 28 and is fixedly connected to the mounting block 30.

[0049] The workflow of this embodiment is as follows:

[0050] The rotary motor 27 is controlled to rotate, which drives the clamping mechanism to rotate, causing the clamping cone 44 to rotate the raw material. The raw material then drives the round hole block 35 to rotate, facilitating the processing of the raw material.

[0051] Example 3: The frame 1 is fixedly connected to symmetrical guide rail covers 26, and the two ends of the mounting vertical plate 21 are respectively set in the corresponding guide rail covers 26.

[0052] The workflow of this embodiment is as follows:

[0053] When the feeding cylinder 25 extends or retracts, the mounting plate 21 moves along the guide rail cover 26.

[0054] Example 4: The mounting large circular plate 5 is fixedly connected to symmetrical guide vertical rods 16, and the symmetrical guide vertical rods 16 pass through the material pick-up rack 2 respectively.

[0055] The workflow of this embodiment is as follows:

[0056] When the vertical electric push rod 3 extends or retracts, the guide rod 16 moves along the material handling frame 2.

[0057] The moving plate 36 of this device drives the L-connecting plate 34, the second-step circular ring 33, and the circular hole block 35 to move, so that one end of the raw material enters the circular hole of the circular hole block 35, and the other end enters the area formed by the clamping cone 44, thus realizing the material entry of the circular hole block 35. The conical part of the clamping cone 44 has a smooth slope, which facilitates the entry of the raw material into the area formed by the clamping cone 44. The cylindrical part of the clamping cone 44 is suitable for clamping rough raw materials. The circular hole block 35 abuts against the end of the raw material, and the contact surface is made of hard rubber, which is rough and wear-resistant.

[0058] This device employs an inclined chute 22. In the initial state, the V-groove material platform 20 rises, blocking the end of the inclined chute 22, causing the V-groove material platform 20 and the baffle 19 to move downwards, allowing the bottom material to slide into the V-groove material platform 20. Then, the feeding cylinder 25 is extended, causing the mounting plate 21 to block the remaining material, allowing the material to enter the area of ​​the finger cylinder 18, facilitating material gripping and subsequent transfer.

[0059] The above-disclosed embodiments are merely specific examples of the present invention. However, the present invention is not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. An automatic feeding system for a CNC machine tool, comprising a frame (1), characterized in that: The frame (1) is fixedly connected to the electric push rod (6), the frame (1) is fixedly connected to the top guide rod (4), and the push rod of the electric push rod (6) is fixedly connected to the material picking mechanism. The frame (1) is fixedly connected to the inclined groove (22), and the frame (1) is fixedly connected to the feeding mechanism corresponding to the inclined groove (22); The frame (1) is fixedly connected to the processing table (13), the processing table (13) is fixedly connected to the horizontal module (12), the slider of the horizontal module (12) is fixedly connected to the vertical module (10), the slider of the vertical module (10) is connected to the vertical module (9), the slider of the vertical module (9) is connected to the mounting block (11), the mounting block (11) is fixedly connected to the power motor (7), and the output shaft of the power motor (7) is fixedly connected to the cutting tool (8). The processing table (13) is fixedly connected to the L plate (38), the L plate (38) is fixedly connected to the motor (39), the output shaft of the motor (39) passes through the L plate (38), the output shaft of the motor (39) is fixedly connected to the screw (37), the screw (37) is threadedly connected to the moving plate (36), the moving plate (36) contacts the L plate (38), and the moving plate (36) is connected to the round hole block (35) by a bearing. The L-plate (38) is fixedly connected to the ring (29), and a rotating clamping mechanism is provided inside the ring (29); The rotating clamping mechanism includes a mounting block (30), which is disposed inside the ring (29). The mounting block (30) is fixedly connected to a set of outer rods (41), which is fixedly connected to an outer ring (42). The outer ring (42) is fixedly connected to a set of outer limiting rods (43). The mounting block (30) is fixedly connected to a servo motor (51). The output shaft of the servo motor (51) is fixedly connected to an inner block (50), which is fixedly connected to a set of inner rods (49). A set of inner circular rods (49) are fixedly connected to an inner circular ring (47), the inner circular ring (47) is connected to a set of inner power rods (48), a set of outer limit rods (43) are rotatably connected to slide grooves (52), each inner power rod (48) is respectively set in the corresponding slide groove (52), each slide groove (52) is fixedly connected to an installation thin rod (46), each installation thin rod (46) is fixedly connected to an installation round seat (45), and each installation round seat (45) is fixedly connected to a clamping cone (44). The material handling mechanism includes a material handling frame (2), the push rod of the electric push rod (6) is fixedly connected to the material handling frame (2), the material handling frame (2) is fixedly connected to a vertical electric push rod (3), the push rod of the vertical electric push rod (3) is fixedly connected to a mounting plate (5), the mounting plate (5) is fixedly connected to a large servo motor (15), the output shaft of the large servo motor (15) is fixedly connected to a cross plate (17), and the cross plate (17) is fixedly connected to a set of evenly distributed finger cylinders (18).

2. The automatic feeding system for CNC machine tools according to claim 1, characterized in that: The ring (29) is fixedly connected to the cross plate (28), the cross plate (28) is fixedly connected to the rotary motor (27), and the output shaft of the rotary motor (27) passes through the cross plate (28) and is fixedly connected to the mounting block (30).

3. The automatic feeding system for CNC machine tools according to claim 2, characterized in that: The L plate (38) is fixedly connected to symmetrical mounting rods (32), and the symmetrical mounting rods (32) are respectively fixedly connected to the first stepped ring (31). The moving plate (36) is fixedly connected to the L connecting plate (34), and the L connecting plate (34) is fixedly connected to the second stepped ring (33). The first stepped ring (31) and the second stepped ring (33) are of the same type and are both provided with a set of evenly distributed stepped circular holes to realize the placement of raw materials of different types.

4. The automatic feeding system for CNC machine tools according to claim 1, characterized in that: The feeding mechanism includes a feeding cylinder (25), the frame (1) is fixedly connected to the feeding cylinder (25), the piston rod of the feeding cylinder (25) is fixedly connected to the mounting horizontal plate (24), the mounting horizontal plate (24) is fixedly connected to the mounting vertical plate (21), the mounting vertical plate (21) is fixedly connected to the baffle (19), and the mounting vertical plate (21) is fixedly connected to a set of V-groove material platforms (20).

5. The automatic feeding system for CNC machine tools according to claim 4, characterized in that: The frame (1) is fixedly connected to symmetrical guide rail covers (26), and the two ends of the mounting plate (21) are respectively set in the corresponding guide rail covers (26).

6. The automatic feeding system for CNC machine tools according to claim 1, characterized in that: The top guide rod (4) passes through the material picker (2).

7. The automatic feeding system for CNC machine tools according to claim 1, characterized in that: The mounting plate (5) is fixedly connected to symmetrical guide rods (16), and the symmetrical guide rods (16) pass through the material picker (2) respectively.

8. The automatic feeding system for CNC machine tools according to claim 1, characterized in that: The circular hole block (35) abuts against the end of the raw material, and the contact surface is made of hard rubber, which is rough and wear-resistant.

Citation Information

Patent Citations

  • Clamping, moving and feeding mechanism for motor rotor machining

    CN111941133A

  • Automatic feeding device of numerical control machine tool

    CN114473594A