Auxiliary transformation square milling machine tool for electromagnetic pure iron parts

Abstract

The invention discloses an auxiliary transformation square milling machine tool for electromagnetic pure iron parts, and relates to the field of square milling of the electromagnetic pure iron parts, the auxiliary transformation square milling machine tool comprises a machine tool body and an electric milling cutter mounted on the inner side of the machine tool body, a part body is arranged on the outer side of the electric milling cutter, an annular box is arranged on the outer side of the part body, and three U-shaped seats are arranged on the inner side of the annular box; two mounting rods are rotationally mounted on the inner side of the U-shaped seat, and two pressing wheels are mounted on the outer sides of the mounting rods; the switching mechanism is used for switching the end part of the part body, is mounted on the inner side of the machine tool body, and is arranged on a turntable on the inner side of the machine tool body; through the conversion mechanism, the multiple pressing wheels can be made to synchronously get close to the outer side of a part body, the part body is clamped and positioned in the middle of the annular box, the two ends of the part body are exchanged through the rotating disc, square milling machining can be conveniently conducted on the two ends of the part body, and therefore the machining convenience of the part body is improved.

Description

Technical Field

[0001] This invention relates to the field of milling and squaring of parts, specifically to an auxiliary conversion milling and squaring machine tool for electromagnetic pure iron parts. Background Technology

[0002] Electromagnetic pure iron is an iron-based alloy with extremely low carbon content and excellent magnetic properties. It has high saturation magnetic induction and low coercivity. It is mainly used to manufacture electromagnetic relays, magnetic components, transformer cores, etc. It is also used as a raw material for precision instruments, electronic components and special alloys. It can be processed by hot rolling, cold rolling or forging, and annealing can eliminate internal stress and further improve magnetic properties. It is an indispensable basic material in the fields of power electronics and automation.

[0003] Milling machines are machining processes that use rotating multi-bladed cutting tools to cut workpieces. They can efficiently complete the machining of shapes such as planes, stepped surfaces, and grooves. To machine square-structured electromagnetic pure iron parts, it is usually necessary to use a milling machine. First, the electromagnetic pure iron part is installed on a triangular jaw chuck, and then the outer side and ends of the electromagnetic pure iron part are machined by an electric milling cutter. When milling the two ends of the part, one end of the part needs to be machined first, and then the part needs to be removed from the triangular jaw chuck and the square part replaced before it can be machined again. However, the temperature of the part after machining one end is relatively high, which reduces the hardness of the end. When the triangular jaw chuck clamps and presses the machined end, it will cause the end to be dented. In addition, the operation is relatively troublesome and affects the machining efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide an auxiliary conversion milling machine tool for electromagnetic pure iron parts, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: An auxiliary milling machine tool for electromagnetic pure iron parts includes: a machine tool body and an electric milling cutter mounted inside the machine tool body. A part body is disposed outside the electric milling cutter, and an annular box is disposed outside the part body. Three U-shaped seats are centrally symmetrically distributed inside the annular box. Two symmetrically distributed mounting rods are rotatably mounted inside the U-shaped seats, and two symmetrically distributed pressure rollers are fixedly mounted outside the mounting rods. The tool also includes: a changing mechanism for swapping the ends of the part body, the changing mechanism being mounted inside the machine tool body. A transformation mechanism is disposed on a turntable inside the machine tool body, the turntable being capable of rotating the part body; a pushing mechanism is used to push the bottom end of the part body, the pushing mechanism being installed inside the machine tool body, the pushing mechanism including a push plate disposed outside the annular box, the push plate being capable of pushing the part body toward the electric milling cutter; a fixed wheel mechanism is used to lock the pressure wheel, the fixed wheel mechanism being installed outside the mounting rod, the fixed wheel mechanism including a positioning ring fixedly installed outside the pressure wheel, the positioning ring being capable of locking and unlocking the pressure wheel.

[0006] Preferably, the conversion mechanism further includes a mounting box fixedly installed inside the machine tool body. A first motor is fixedly installed on the bottom inner wall of the mounting box. The output end of the first motor is fixedly connected to the top of the turntable. The top of the turntable contacts the top of the inner wall of the mounting box. The top of the mounting box has an opening corresponding to the turntable. Two symmetrically distributed support rods are fixedly installed between the top of the turntable and the bottom of the annular box. Two symmetrically distributed rotating rings are rotatably installed on the inner side of the annular box. A spiral strip is fixedly installed on the opposite side of the two rotating rings. Two symmetrically distributed moving blocks are fixedly installed on the side of the U-shaped seat away from the pressure roller. The moving blocks are threaded onto the outer side of the adjacent spiral strips. A sliding groove for limiting the sliding of the moving blocks is opened on the inner side of the annular box. A gear ring is fixedly installed between the two rotating rings. A first gear that cooperates with the gear ring is rotatably installed on the inner side of the annular box. A second motor is installed on the outer side of the annular box, and the output end of the second motor is fixedly connected to the first gear.

[0007] Preferably, the pushing mechanism further includes a driven rod rotatably mounted on the top of the inner wall of the mounting box. A second gear is fixedly mounted on the outer side of the driven rod and the bottom of the turntable. The two second gears mesh with each other, and the number of teeth on the second gear at the bottom of the turntable is twice the number of teeth on the driven rod. A rotating plate is fixedly mounted at the bottom of the driven rod, and a connecting rod is rotatably mounted on one end of the rotating plate. A pull rod is rotatably mounted on the end of the connecting rod away from the rotating plate. A mounting seat is fixedly mounted on the top of the pull rod. A mounting bracket is fixedly mounted on the side of the push plate away from the part body, and the mounting bracket is mounted inside the mounting seat. Two symmetrically distributed positioning plates are fixedly mounted on the top of the mounting box. Multiple equidistant limiting rods are fixedly mounted between the two positioning plates, and the limiting rods penetrate the pull rod.

[0008] Preferably, the fixed wheel mechanism further includes an arc-shaped strip disposed on the outer side of the positioning ring, with both ends of the arc-shaped strip being far away from the part body. An insert is fixedly installed on the inner side of the arc-shaped strip, and multiple slots are centrally symmetrically distributed on the outer side of the positioning ring. The end of the insert away from the arc-shaped strip has an arc-shaped structure, and the opening of the slot has a symmetrical inclined structure. Two symmetrically distributed carriages are disposed on the outer side of the arc-shaped strip, and two symmetrically distributed sleeve blocks are fixedly installed on the outer side of the arc-shaped strip. The two sleeve blocks are respectively sleeved on the outer side of the carriage. A spring is fixedly installed between the sleeve block and the inner side of the carriage. A positioning frame is fixedly installed between two adjacent carriages, and the positioning frame is fixedly installed on the inner side of the annular box.

[0009] Preferably, a rubber pad ring is fixedly installed on the outer side of the pressure roller, and a protective groove is provided on the outer side of the rubber pad ring.

[0010] Preferably, a positioning plate is fixedly installed on the top of the inner wall of the mounting box, and the turntable is rotatably installed on the inner side of the positioning plate.

[0011] Preferably, a support plate is fixedly installed on the inner side of the mounting box, and both second gears are in contact with the top of the support plate, and the driven rod is rotatably installed on the inner side of the support plate.

[0012] Preferably, an adjusting screw is rotatably mounted on the inner side of the mounting bracket, and the mounting seat is threaded onto the outer side of the adjusting screw, with the mounting seat sleeved on the outer side of the mounting bracket.

[0013] Preferably, a support tube is sleeved on the outer side of the limiting rod, and the support tube is fixedly installed on the outer side of the pull rod.

[0014] Preferably, two limiting blocks are fixedly installed at the top of the driven rod, and the two limiting blocks are respectively in contact with the top of the mounting box and the top of the inner wall.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. The present invention, through a switching mechanism, enables multiple pressure rollers to synchronously approach the outer side of the part body, clamping and positioning the part body in the middle position of the annular box, and swapping the two ends of the part body through a turntable, which facilitates milling and squaring of the two ends of the part body, thereby improving the convenience of part body processing.

[0016] 2. The present invention, through a pushing mechanism, enables the push plate to move away from the part body and then closer to the end of the part body when the two ends of the part body are swapped, which facilitates pushing the unprocessed part body towards the electric milling cutter, thereby improving the processing efficiency of the part body.

[0017] 3. The present invention, through the fixed wheel mechanism, can release the pressure wheel from the part body before the push plate pushes the part body, and move the slot on the positioning ring away from the insert bar, thereby unlocking the pressure wheel, which facilitates the push plate to push the part body. When the insert bar is inserted into the slot of the positioning ring, the pressure wheel is locked, ensuring the firmness of the pressure wheel in clamping and positioning the part body, thereby improving the convenience of changing the part body. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the annular box and pressure roller structure in this invention; Figure 3 This is a partial cross-sectional view of the mounting box and tie rod in this invention; Figure 4 This is a partial cross-sectional view of the turntable and mounting frame in this invention. Figure 5 This is a schematic diagram of a partial cross-sectional structure of the rotating ring and vortex strip in this invention; Figure 6 This is a schematic diagram of the toothed ring and moving block structure in this invention; Figure 7 This is a schematic diagram of the sleeve block and arc-shaped strip structure in this invention; Figure 8 This is a partial cross-sectional view of the positioning ring and insert in this invention; Figure 9 A schematic diagram of the transfer plate and driven rod structure for the invention; Figure 10 This is a schematic diagram of the U-shaped seat and positioning frame structure in the invention.

[0019] In the diagram: 1. Machine tool body; 2. Electric milling cutter; 3. Part body; 4. Ring box; 5. U-shaped seat; 6. Mounting rod; 7. Pressure roller; 8. Turntable; 9. Push plate; 10. Positioning ring; 11. Mounting box; 12. First motor; 13. Support rod; 14. Rotary ring; 15. Spiral bar; 16. Moving block; 17. Gear ring; 18. First gear; 19. Second motor; 20. Driven rod; 21. Second gear; 22. Turning plate; 23. Connecting rod; 24. Pull rod; 25. Mounting seat; 26. Mounting bracket; 27. Positioning plate; 28. Limiting rod; 29. ​​Arc bar; 30. Insert bar; 31. Slide; 32. Sleeve block; 33. Spring; 34. Positioning frame; 35. Rubber washer ring; 36. Positioning disc; 37. Support plate; 38. Adjusting screw; 39. Support tube; 40. Limiting block. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1: Please refer to Figures 1-10 The auxiliary milling machine tool for electromagnetic pure iron parts shown in the figure includes a machine body 1 and an electric milling cutter 2 installed inside the machine body 1. A part body 3 is set outside the electric milling cutter 2. An annular box 4 is set outside the part body 3. Three U-shaped seats 5 are centrally symmetrically distributed inside the annular box 4. Two symmetrically distributed mounting rods 6 are rotatably mounted inside the U-shaped seats 5. Two symmetrically distributed pressure rollers 7 are fixedly mounted outside the mounting rods 6. The pressure rollers 7 on the U-shaped seats 5 clamp and position the outer side of the part body 3 at multiple points, so that the electric milling cutter 2 can perform milling and square machining on the end of the part body 3.

[0022] The transformation mechanism is located on a turntable 8 inside the machine tool body 1. The turntable 8 can rotate the part body 3. The transformation mechanism also includes a mounting box 11 fixedly installed inside the machine tool body 1. A first motor 12 is fixedly installed on the bottom inner wall of the mounting box 11. The output end of the first motor 12 is fixedly connected to the top of the turntable 8. The top of the turntable 8 is in contact with the top of the inner wall of the mounting box 11. The top of the mounting box 11 has an opening corresponding to the turntable 8. Two symmetrically distributed support rods 13 are fixedly installed between the top of the turntable 8 and the bottom of the annular box 4, so that the first motor 12... During operation, the turntable 8 rotates half a turn, and the turntable 8, through the support rod 13, drives the annular box 4 to rotate half a turn, causing the part body 3 located on the inner ring of the annular box 4 to rotate half a turn, thereby realizing the interchange of the positions of the two ends of the part body 3. Two symmetrically distributed rotating rings 14 are rotatably installed on the inner side of the annular box 4. Scroll bars 15 are fixedly installed on opposite sides of the two rotating rings 14. Two symmetrically distributed moving blocks 16 are fixedly installed on the side of the U-shaped seat 5 away from the pressure roller 7. The moving blocks 16 are threaded onto the outer side of the adjacent scroll bars 15, and the inner side of the annular box 4 has openings for limiting the moving blocks 16. The sliding groove allows the rotating ring 14 to rotate, driving the moving block 16 along the groove on the annular box 4 via the vortex bar 15. This moving block 16 then pushes the U-shaped seat 5, and the pressure roller 7 on the U-shaped seat 5 clamps and positions the part body 3, facilitating milling of the end of the part body 3 by the electric milling cutter 2. A gear ring 17 is fixedly installed between the two rotating rings 14. A first gear 18, which meshes with the gear ring 17, is rotatably mounted on the inner side of the annular box 4. A second motor 19 is mounted on the outer side of the annular box 4, and the output end of the second motor 19 is fixedly connected to the first gear 18. A fixed connection is established so that the second motor 19 can drive the gear ring 17 to rotate through the first gear 18, and the gear ring 17 can drive the two rotating rings 14 to rotate. A rubber pad ring 35 is fixedly installed on the outer side of the pressure roller 7, and a protective groove is opened on the outer side of the rubber pad ring 35, so that the pressure roller 7 can elastically clamp the part body 3 through the rubber pad ring 35, avoiding excessive pressure on the part body 3. A positioning plate 36 is fixedly installed on the top of the inner wall of the mounting box 11, and the turntable 8 is rotatably installed on the inner side of the positioning plate 36, so that the positioning plate 36 provides support and positioning for the turntable 8, thereby improving the load-bearing capacity of the turntable 8.

[0023] Example 2: Please refer to Figures 2-4This embodiment further explains Example 1. The pushing mechanism shown in the figure includes a push plate 9 disposed on the outside of the annular box 4. The push plate 9 can push the part body 3 toward the electric milling cutter 2. The pushing mechanism also includes a driven rod 20 rotatably mounted on the top of the inner wall of the mounting box 11. A second gear 21 is fixedly mounted on the outside of the driven rod 20 and the bottom of the turntable 8. The two second gears 21 mesh with each other, and the number of teeth on the second gear 21 at the bottom of the turntable 8 is twice the number of teeth on the driven rod 20. When the turntable 8 rotates, it can drive the second gear 21 on the driven rod 20 to rotate through the second gear 21 at its bottom, so that the second gear 21 drives the driven rod 20 to rotate. When the turntable 8 rotates half a turn, the driven rod 20 rotates one turn. A rotating plate 22 is fixedly installed at the bottom of the mounting box 11. A connecting rod 23 is rotatably installed at one end of the rotating plate 22. A pull rod 24 is rotatably installed at the end of the connecting rod 23 away from the rotating plate 22. A mounting base 25 is fixedly installed at the top of the pull rod 24. A mounting bracket 26 is fixedly installed on the side of the push plate 9 away from the part body 3, and the mounting bracket 26 is installed inside the mounting base 25. Two symmetrically distributed positioning plates 27 are fixedly installed on the top of the mounting box 11. Multiple equidistant limiting rods 28 are fixedly installed between the two positioning plates 27, and the limiting rods 28 pass through the pull rod 24. When the driven rod 20 rotates, the driven rod 20 can drive the rotating plate 22 to rotate. The end of the rotating plate 22 away from the driven rod 20 drives the connecting rod 23 to perform a circular motion, and the connecting rod 23 drives the pull rod 24 synchronously. The movement is facilitated by multiple limiting rods 28 passing through the pull rod 24, providing a limit for the pull rod 24. This allows the connecting rod 23 to drive the pull rod 24 to move horizontally along the outer side of the multiple limiting rods 28. The pull rod 24, in turn, drives the push plate 9 to move through the mounting base 25 and the mounting bracket 26. This allows the push plate 9 to move away from the part body 3 and then closer to the end of the part body 3 during the process of changing the two ends of the part body 3, pushing the part body 3 along the multiple pressure rollers 7. This facilitates pushing the unprocessed end of the part body 3 towards the electric milling cutter 2. A support plate 37 is fixedly installed on the inner side of the mounting box 11, and both second gears 21 are in contact with the top of the support plate 37. The driven rod 20 is rotatably installed on the inner side of the support plate 37, making the support plate 37 a pair of second gears. Wheel 21 and driven rod 20 provide support. An adjusting screw 38 is rotatably mounted on the inner side of mounting bracket 26, and mounting seat 25 is threaded onto the outer side of adjusting screw 38. Mounting seat 25 is sleeved on the outer side of mounting bracket 26, allowing mounting bracket 26 to move along the inner side of mounting seat 25 by rotating adjusting screw 38, thus moving push plate 9. This facilitates adjustment of the push plate 9's position according to the length of part body 3. A support tube 39 is sleeved on the outer side of limiting rod 28 and fixedly mounted on the outer side of pull rod 24, allowing pull rod 24 to move along the outer side of limiting rod 28 via support tube 39, preventing tilting of pull rod 24 during movement. Two limiting blocks 40 are fixedly mounted on the top of driven rod 20.Furthermore, the two limiting blocks 40 respectively contact the top of the mounting box 11 and the top of its inner wall, positioning the driven rod 20 at the top of the mounting box 11 and improving the smoothness of the driven rod 20's rotation.

[0024] Example 3: Please refer to Figures 2-8 This embodiment further illustrates other embodiments. The fixed wheel mechanism shown in the figure includes a positioning ring 10 fixedly installed on the outside of the pressure wheel 7. The positioning ring 10 can provide locking and unlocking for the pressure wheel 7. The fixed wheel mechanism also includes an arc-shaped strip 29 disposed on the outside of the positioning ring 10, and both ends of the arc-shaped strip 29 are far away from the part body 3. An insert 30 is fixedly installed on the inner side of the arc-shaped strip 29, and multiple slots are centrally symmetrically distributed on the outer side of the positioning ring 10. The end of the insert 30 away from the arc-shaped strip 29 has an arc-shaped structure, and the opening of the slot has a symmetrical inclined structure. When the pressure wheel 7 is close to the inner side of the annular box 4, the slot of the positioning ring 10 can move away from the insert 30 of the arc-shaped strip 29, thereby unlocking the pressure wheel 7. This facilitates the push plate 9 to push the part body 3 to move, and when the insert 30 is inserted into the slot, it can unlock the pressure wheel 7. The locking of the pressure roller 7 improves the stability of the pressure roller 7 in clamping and positioning the part body 3. Two symmetrically distributed slides 31 are provided on the outer side of the arc-shaped strip 29. Two symmetrically distributed sleeves 32 are fixedly installed on the outer side of the arc-shaped strip 29, and the two sleeves 32 are respectively sleeved on the outer side of the slides 31. A spring 33 is fixedly installed between the sleeves 32 and the inner side of the slides 31. When the pressure roller 7 clamps and positions the part body 3, the pressure roller 7 drives the positioning ring 10 to move synchronously, so that the positioning ring 10 pushes the arc-shaped strip 29 to move. The arc-shaped strip 29 drives the two sleeves 32 to move along the inner side of the slides 31 and compresses the spring 33 to ensure that the insert 30 locks the positioning ring 10. A positioning frame 34 is fixedly installed between two adjacent slides 31, and the positioning frame 34 is fixedly installed on the inner side of the annular box 4.

[0025] Working principle: First, the operator inserts the workpiece body 3 into the inner ring of the annular box 4 and starts the second motor 19. The second motor 19 drives the first gear 18 to rotate, which in turn drives the two rotating rings 14 to rotate synchronously through the gear ring 17. The spiral strip 15 on the outer side of the rotating ring 14 drives the corresponding three moving blocks 16 to move along the sliding groove on the annular box 4 towards the workpiece body 3. The moving blocks 16 drive the U-shaped seat 5 to move, and the U-shaped seat 5 drives the pressure roller 7 to move through the mounting rod 6. The positioning ring 10 on the outer side of the pressure roller 7 comes into close contact with the arc strip 29, so that the insert 30 on the arc strip 29 is inserted into the positioning ring. Within the slot of part 10, the insert 30 locks the pressure roller 7 via the positioning ring 10. As the moving block 16 moves, the pressure rollers 7 on the three U-shaped seats 5 contact the outer side of the part body 3, achieving clamping and positioning of the part body 3. This allows the electric milling cutter 2 to mill one end of the part body 3. Then, the operator starts the first motor 12, causing the first motor 12 to drive the turntable 8 to rotate half a turn. The turntable 8, through the support rod 13, drives the annular box 4 to rotate half a turn, achieving replacement at both ends of the part body 3. Simultaneously, the second gear 21 at the bottom of the turntable 8 drives the second gear 21 on the driven rod 20 to rotate. The second gear 21 on the 20 can drive the driven rod 20 to rotate, and the driven rod 20 drives the rotating plate 22 to rotate, so that the rotating plate 22 pulls the pull rod 24 horizontally along the outside of the limit rod 28 through the connecting rod 23. The pull rod 24 can then pull the adjusting screw 38 through the mounting base 25 to move, and the adjusting screw 38 pulls the push plate 9 through the mounting bracket 26 to move. Since the number of teeth of the second gear 21 at the bottom of the turntable 8 is twice the number of teeth of the second gear 21 on the driven rod 20, the driven rod 20 rotates one revolution, causing the push plate 9 to first move away from the part body 3, and then move closer to the end of the part body 3, pushing the part. The main body 3 moves between multiple pressure rollers 7, facilitating the pushing of the unprocessed end of the part body 3 towards the electric milling cutter 2. Simultaneously, the second motor 19 drives the gear ring 17 to rotate in the opposite direction via the first gear 18, causing the moving block 16 to move away from the part body 3. The pressure rollers 7 can then release the part body 3. Furthermore, the slot of the positioning ring 10 can move away from the insert 30 of the arc-shaped strip 29, thereby unlocking the pressure rollers 7 and facilitating the push plate 9 to push the part body 3 to move. Finally, the pressure rollers 7 clamp and position the part body 3 again, achieving smooth milling of both ends of the part body 3, thus improving the convenience of milling the part body 3.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An auxiliary milling machine tool for electromagnetic pure iron parts, characterized in that, include: The machine tool body (1) and the electric milling cutter (2) installed inside the machine tool body (1) are provided. The electric milling cutter (2) is provided with a part body (3) on the outside. The part body (3) is provided with an annular box (4) on the outside. The annular box (4) is provided with three U-shaped seats (5) on the inside. Two mounting rods (6) are rotatably installed on the inside of the U-shaped seats (5). Two pressure rollers (7) are installed on the outside of the mounting rods (6). Also includes: A changing mechanism is used to change the end of the part body (3). The changing mechanism is installed on the inner side of the machine tool body (1). The changing mechanism is set on the turntable (8) inside the machine tool body (1). The turntable (8) can rotate the part body (3). A pushing mechanism is used to push the bottom end of the part body (3). The pushing mechanism is installed on the inner side of the machine tool body (1). The pushing mechanism includes a push plate (9) disposed on the outer side of the annular box (4). The push plate (9) can push the part body (3) toward the electric milling cutter (2). A fixed wheel mechanism is used to lock the pressure wheel (7). The fixed wheel mechanism is installed on the outside of the mounting rod (6). The fixed wheel mechanism includes a positioning ring (10) fixedly installed on the outside of the pressure wheel (7). The positioning ring (10) can lock and unlock the pressure wheel (7).

2. The auxiliary milling machine tool for electromagnetic pure iron parts according to claim 1, characterized in that: The conversion mechanism also includes a mounting box (11) installed inside the machine tool body (1). A first motor (12) is installed on the bottom inner wall of the mounting box (11). The output end of the first motor (12) is fixedly connected to the top of the turntable (8). Two support rods (13) are fixedly installed between the top of the turntable (8) and the bottom of the annular box (4). Two rotating rings (14) are rotatably installed on the inner side of the annular box (4). A spiral strip (15) is fixedly installed on the opposite side of the two rotating rings (14). The U-shaped seat (5) is away from the pressure roller (7). Two movable blocks (16) are installed on one side of the ring (4). The movable blocks (16) are threaded onto the outer side of the adjacent spiral strip (15). The inner side of the ring box (4) is provided with a sliding groove for the movable blocks (16) to be limited and slid. A toothed ring (17) is fixedly installed between the two rotating rings (14). A first gear (18) that cooperates with the toothed ring (17) is rotatably installed on the inner side of the ring box (4). A second motor (19) is installed on the outer side of the ring box (4), and the output end of the second motor (19) is fixedly connected to the first gear (18).

3. The auxiliary milling machine tool for electromagnetic pure iron parts according to claim 2, characterized in that: The pushing mechanism also includes a driven rod (20) rotatably mounted on the top of the inner wall of the mounting box (11). The outer side of the driven rod (20) and the bottom of the turntable (8) are both fixedly mounted with second gears (21). The two second gears (21) mesh with each other, and the number of teeth on the second gears (21) at the bottom of the turntable (8) is twice the number of teeth on the driven rod (20). A rotating plate (22) is fixedly mounted on the bottom end of the driven rod (20), and one end of the rotating plate (22) rotates. A connecting rod (23) is installed, and a pull rod (24) is rotatably installed at one end of the connecting rod (23). A mounting base (25) is installed on the top of the pull rod (24). A mounting bracket (26) is installed on one side of the push plate (9), and the mounting bracket (26) is installed inside the mounting base (25). Two positioning plates (27) are installed on the top of the mounting box (11). Multiple limiting rods (28) are installed between the two positioning plates (27), and the limiting rods (28) pass through the pull rod (24).

4. The auxiliary milling machine tool for electromagnetic pure iron parts according to claim 3, characterized in that: The fixed wheel mechanism also includes an arc-shaped strip (29) disposed on the outside of the positioning ring (10). An insert (30) is fixedly installed on the inner side of the arc-shaped strip (29), and multiple slots are centrally symmetrically distributed on the outer side of the positioning ring (10). Two slides (31) are disposed on the outer side of the arc-shaped strip (29). Two sleeves (32) are fixedly installed on the outer side of the arc-shaped strip (29), and the two sleeves (32) are respectively sleeved on the outer side of the slides (31). A spring (33) is installed between the sleeve (32) and the inner side of the slides (31). A positioning frame (34) is installed between two adjacent slides (31), and the positioning frame (34) is installed on the inner side of the annular box (4).

5. The auxiliary milling machine tool for electromagnetic pure iron parts according to claim 2, characterized in that: A rubber pad ring (35) is installed on the outer side of the pressure roller (7), and a protective groove is provided on the outer side of the rubber pad ring (35).

6. The auxiliary milling machine tool for electromagnetic pure iron parts according to claim 2, characterized in that: The top of the inner wall of the mounting box (11) is equipped with a positioning plate (36), and the turntable (8) is rotatably mounted on the inner side of the positioning plate (36).

7. The auxiliary milling machine tool for electromagnetic pure iron parts according to claim 3, characterized in that: A support plate (37) is installed on the inner side of the mounting box (11), and the two second gears (21) are in contact with the top of the support plate (37), and the driven rod (20) is rotatably installed on the inner side of the support plate (37).

8. The auxiliary milling machine tool for electromagnetic pure iron parts according to claim 3, characterized in that: An adjusting screw (38) is rotatably mounted on the inner side of the mounting bracket (26), and the mounting seat (25) is threaded onto the outer side of the adjusting screw (38), and the mounting seat (25) is sleeved on the outer side of the mounting bracket (26).

9. The auxiliary milling machine tool for electromagnetic pure iron parts according to claim 3, characterized in that: The limiting rod (28) is fitted with a support tube (39) on its outer side, and the support tube (39) is installed on the outer side of the pull rod (24).

10. The auxiliary milling machine tool for electromagnetic pure iron parts according to claim 3, characterized in that: Two limiting blocks (40) are installed at the top of the driven rod (20), and the two limiting blocks (40) are respectively in contact with the top of the mounting box (11) and the top of the inner wall.

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