Special equipment for milling arc groove of roll wreath head
By designing a special milling machine for arc grooves on the plum blossom head of a roll, which includes a moving plate, clamping assembly, shifting assembly, and cutting assembly, simultaneous processing of both ends of the roll is achieved. This solves the problems of separate clamping of rolls and low efficiency in existing equipment, and improves processing efficiency.
Patent Information
- Application Number
- CN202522457922.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-20
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-11-20
AI Technical Summary
Existing milling equipment for arc grooves on rolls with plum blossom heads can only clamp one roll at a time, making it impossible to process both ends of the roll simultaneously. Furthermore, the processing efficiency is low and the operation is difficult.
A special machine for milling arc grooves on the plum blossom head of a roll is designed, which includes a moving plate, a clamping assembly, a shifting assembly, and a cutting assembly. By setting two shifting assemblies and two cutting assemblies, the two ends of the roll can be processed simultaneously, and the continuous feeding of the roll can be achieved by moving the moving plate.
It improves the efficiency of roll processing, solves the problems of separate feeding and single-end processing, and realizes simultaneous processing and continuous operation at both ends of the roll.
Smart Images
Figure CN224927479U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of rolling mill processing technology, and in particular relates to a special equipment for milling arc grooves on rolling mill plum blossom heads. Background Technology
[0002] Rolls are the core components of rolling production. Their core function is to plastically deform metal billets through rotation and rolling, thereby achieving the forming and dimensional accuracy control of workpieces such as profiles, plates, and pipes. They are widely used in industries such as steel and non-ferrous metal processing. In order to achieve precise docking between the rolls and the transmission mechanism, the rolls need to be processed with a quincunx head. The irregular structure of the quincunx head can transmit torque, ensure stable power transmission, and at the same time avoid slippage or displacement during transmission, thereby improving rolling continuity and workpiece quality. Milling arc grooves with a plum blossom head requires the following steps: First, fix the roll using a tooling fixture, accurately position the plum blossom head reference surface, set the milling cutter speed and feed rate according to the groove size, and use a layered milling method to mill along the preset trajectory on the end face of the plum blossom head to ensure a smooth and continuous arc. During processing, monitor the groove width, arc radius, and depth in real time to avoid dimensional deviations, ultimately ensuring a perfect fit between the arc groove and the matching components to meet transmission and rolling requirements. However, currently, the mainstream roll plum blossom head milling equipment on the market still has the following problems when processing rolls: Conventional milling equipment for arc grooves on rolls has only one set of clamping components, which can only clamp and fix one roll at a time. After the roll is finished, it can only be clamped and fixed again after the roll is removed. Due to the large mass of the roll, it is not easy to operate when loading and unloading, and the time required is long, resulting in reduced work efficiency. Conventional milling machines for arc grooves on rolls typically only have one milling cutter. When milling arc grooves on rolls, one end must be processed before the other end can be processed, resulting in low work efficiency and making the operation of flipping the rolls quite difficult.
[0003] To address these issues, we provide a specialized machine for milling arc grooves on roll plum blossom heads. Utility Model Content
[0004] The purpose of this utility model is to provide a special equipment for milling arc grooves on the plum blossom head of a rolling mill. By setting up a moving plate, a clamping component, a shifting component, and a cutting component, it solves the problem that existing special equipment for milling arc grooves on the plum blossom head of a rolling mill must remove the already processed rolling mill before loading a new rolling mill, and cannot process both ends of the rolling mill at the same time.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a special equipment for milling arc grooves on a rolling mill plum blossom head, comprising a base, a clamping assembly, a shifting assembly, and a cutting assembly. A movable plate is provided at the top of the base near its center. Clamping assemblies are provided at the top of the movable plate near its four corners. Two shifting assemblies are symmetrically arranged on both sides of the center of the top of the base. Each shifting assembly includes a U-shaped transverse movable seat fixedly connected to the base. A movable block is provided at the top of the horizontal part of the transverse movable seat. A vertically arranged U-shaped vertical movable seat is fixedly connected to the top of the movable block. The opening of the vertical movable seat points towards the center of the base. A transversely arranged U-shaped longitudinal movable seat is provided on the side of the vertical part of the vertical movable seat near the center of the base. The opening of the longitudinal movable seat also points towards the center of the base. The cutting assembly includes a movable frame located within the opening of the longitudinal movable seat. A tool holder is rotatably connected to the outer side of the movable frame away from the longitudinal movable seat. A milling cutter is fixedly connected to the end of the tool holder away from the movable frame. Initially, the two clamping components located at the same end of the moving plate clamp the two ends of the roll respectively. Then, the moving plate is moved so that the roll is above the center position of the base. The milling cutter rotates, the vertical moving seat moves laterally on the horizontal moving seat, driving the milling cutter to move laterally, the longitudinal moving seat moves vertically on the vertical moving seat, driving the milling cutter to move vertically, and the moving frame moves longitudinally on the longitudinal moving seat, driving the milling cutter to move longitudinally. This allows the milling cutter to move in all directions to process the arc groove of the roll with a quincunx head. Due to the symmetrical arrangement of the two moving components and the two cutting components, both ends of the roll can be processed simultaneously. When processing the roll, the two clamping components located at the other end of the moving plate can clamp the two ends of the next roll respectively. After the roll is processed, the moving plate continues to move so that the next roll is above the center position of the base, and the next roll can be processed. At the same time, the processed roll can be removed and replaced with a new unprocessed roll.
[0006] Furthermore, the top of the base is provided with an inverted T-shaped groove, and a threaded rod rotatably connected to the base is provided inside the groove. An inverted T-shaped slider is also slidably connected inside the groove and threadedly connected to the threaded rod. The top of the vertical part of the slider is fixedly connected to the moving plate. A conveying motor is fixedly connected to one end of the base, and the output shaft of the conveying motor is connected to the threaded rod end nearby. When the conveyor motor is started, the output shaft of the conveyor motor rotates, which drives the threaded rod to rotate, thus moving the slider in the groove, realizing the movement of the moving plate, and in turn, the movement of the roller.
[0007] Furthermore, the clamping assembly includes a card holder fixedly connected to the movable plate. A V-shaped groove is provided at the center of the top of the card holder. A card plate is provided above the card holder. An inverted V-shaped groove is provided at the center of the bottom of the card plate. Studs are fixedly connected to both ends of the top of the card holder. The studs pass through the card plate upward and are screwed with nuts. Remove the nut to remove the clamping plate from the stud. After the end of the roll is placed in the V-shaped groove on the clamping seat, reinstall the clamping plate and screw the nut in place to complete the roll fixing work.
[0008] Furthermore, a transverse screw and a transverse limiting rod are rotatably connected between the two vertical parts of the transverse moving seat. The transverse screw is threadedly connected to the moving block, and the transverse limiting rod is slidably connected to the moving block. A drive motor is fixedly connected to the outer side of the vertical part of the transverse moving seat away from the moving block. The output shaft of the drive motor is connected to the end of the transverse screw near it. Start drive motor one. The output shaft of drive motor one rotates, which drives the horizontal screw to rotate. The moving block moves laterally along the horizontal limit rod, thus realizing the lateral movement of the milling cutter.
[0009] Furthermore, a vertical screw and a vertical limiting rod are arranged side by side in the opening of the vertical moving seat and are rotatably connected to the vertical moving seat. The vertical screw is threadedly connected to the longitudinal moving seat, and the vertical limiting rod is slidably connected to the longitudinal moving seat. A second drive motor is fixedly connected to the top of the vertical moving seat, and the output shaft of the second drive motor is connected to the end of the vertical screw near it. Start the second drive motor. The output shaft of the second drive motor rotates, which drives the vertical screw to rotate. The longitudinal moving seat moves along the vertical limit rod, thus realizing the vertical movement of the milling cutter.
[0010] Furthermore, a longitudinal screw and a longitudinal limiting rod are arranged side by side in the opening of the longitudinal moving seat and are rotatably connected to the longitudinal moving seat. The longitudinal screw is threadedly connected to the side frame of the moving frame near the longitudinal moving seat. The longitudinal limiting rod is slidably connected to the side frame of the moving frame near the longitudinal moving seat. A drive motor is fixedly connected to the outer side of one end of the longitudinal moving seat. The output shaft of the drive motor is connected to the end of the longitudinal screw near it. Start the third drive motor. The output shaft of the third drive motor rotates, which drives the longitudinal screw to rotate. The moving frame moves along the longitudinal limit rod, thus realizing the longitudinal movement of the milling cutter.
[0011] Furthermore, a power motor is fixedly connected to the inner side of the side frame away from the longitudinal moving seat of the moving frame, and the output shaft of the power motor is connected to the end of the tool holder nearby in a transmission connection. Start the power motor, and the output shaft of the power motor will rotate, which will drive the tool holder to rotate, thus enabling the milling cutter to rotate and process the roll.
[0012] This utility model has the following beneficial effects: This invention solves the problem of having to remove a pre-processed roll before loading a new roll by setting up a moving plate and clamping components. In the initial state, the clamping plate is removed, and the two ends of the roll are respectively mounted on two clamping seats. Then, the roll is fixed with the clamping plate. The moving plate is moved so that the roll is located between two cutting components for processing. During processing, another roll can be loaded. After the roll is processed, the moving plate continues to move so that the unprocessed roll is located between two clamping components for processing. At this time, the processed roll can be removed and replaced with a new roll, thereby improving work efficiency.
[0013] This invention solves the problem of not being able to process both ends of a roll simultaneously by setting up two transfer components and two cutting components. When the roll is moved between the two cutting components, the vertical moving seat moves laterally on the horizontal moving seat to achieve the lateral movement of the vertical moving seat and the cutting components. The vertical moving seat moves vertically on the vertical moving seat to achieve the vertical movement of the cutting components. The cutting components can move longitudinally on the vertical moving seat. The milling cutter can move in all directions to process the plum blossom-shaped arc groove at the end of the roll. Due to the symmetrical arrangement of the two transfer components and the two cutting components, both ends of the roll can be cut simultaneously, improving work efficiency.
[0014] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 A schematic diagram of a special equipment for milling arc grooves on the plum blossom head of a rolling mill. Figure 2 for Figure 1 A schematic diagram of the working status; Figure 3 This is a schematic diagram of the connection structure between the split base and the movable plate. Figure 4 This is a schematic diagram of the clamping assembly. Figure 5 This is a structural diagram of the relocation component; Figure 6 This is a schematic diagram of the cutting assembly.
[0017] The attached diagram lists the components represented by each number as follows: 1. Base; 101. Slide groove; 102. Threaded rod; 103. Moving plate; 104. Slider; 105. Conveyor motor; 2. Clamping assembly; 201. Card holder; 202. Stud; 203. Card plate; 204. Nut; 3. Transfer assembly; 301. Lateral moving seat; 3011. Lateral screw; 3012. Lateral limit rod; 302. Drive motor one; 303. Moving block; 304. Vertical moving seat; 3041. Vertical screw; 3042. Vertical limit rod; 305. Drive motor two; 306. Longitudinal moving seat; 3061. Longitudinal screw; 3062. Longitudinal limit rod; 307. Drive motor three; 4. Cutting assembly; 401. Moving frame; 402. Tool holder; 403. Milling cutter; 404. Power motor. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Specific Implementation Example 1
[0019] Please see Figure 1-6 This utility model relates to a special equipment for milling arc grooves on a rolling mill plum blossom head, comprising a base 1, a clamping assembly 2, a shifting assembly 3, and a cutting assembly 4. A moving plate 103 is provided near the center of the top of the base 1, and clamping assemblies 2 are provided near the four corners of the top of the moving plate 103. Two shifting assemblies 3 are symmetrically arranged on both sides of the center of the top of the base 1. Each shifting assembly 3 includes a U-shaped transverse moving seat 301 fixedly connected to the base 1. A moving block 303 is provided at the top of the horizontal part of the transverse moving seat 301, and a vertically oriented... The U-shaped vertical moving seat 304 is positioned with its opening pointing towards the center of the base 1. A U-shaped longitudinal moving seat 306 is provided on the side of the vertical part of the vertical moving seat 304 near the center of the base 1. The opening of the longitudinal moving seat 306 points towards the center of the base 1. The cutting assembly 4 includes a moving frame 401 located inside the opening of the longitudinal moving seat 306. A tool holder 402 is rotatably connected to the outer side of the moving frame 401 away from the longitudinal moving seat 306. A milling cutter 403 is fixedly connected to the end of the tool holder 402 away from the moving frame 401. The base 1 provides a working environment for the processing of the roll. In the initial state, the two clamping components 2 located at the same end of the moving plate 103 clamp the two ends of the roll respectively. Then, the moving plate 103 is moved so that the roll is above the center position of the base 1. The milling cutter 403 rotates, the vertical moving seat 304 moves laterally on the horizontal moving seat 301, driving the milling cutter 403 to move laterally, the longitudinal moving seat 306 moves vertically on the vertical moving seat 304, driving the milling cutter 403 to move vertically, and the moving frame 401 moves longitudinally on the longitudinal moving seat 306, driving the milling cutter 403 to move longitudinally. This allows the milling cutter 403 to move in all directions to process the arc groove of the roll with a quincunx head. Due to the symmetrical arrangement of the two moving components 3 and the two cutting components 4, the roll can be processed simultaneously. The two ends of the roller are cut. When processing the first roller, the two clamping components 2 located at the other end of the moving plate 103 can be used to clamp the two ends of the second roller respectively. After the first roller is processed, the moving plate 103 continues to move so that the second roller is above the center position of the base 1, and the second roller can be processed. At the same time, the processed first roller can be removed and the unprocessed third roller can be replaced and fixed. After the second roller is processed, the moving plate 103 moves in the opposite direction so that the third roller is above the center position of the base 1, and the third roller can be processed. At this time, the second roller can be removed and the unprocessed fourth roller can be replaced and fixed. This cycle is repeated to perform continuous roller processing.
[0020] Among them, such as Figure 3 As shown, the top of the base 1 is provided with an inverted T-shaped groove 101. A threaded rod 102 rotatably connected to the base 1 is provided inside the groove 101. An inverted T-shaped slider 104 that is threaded through the threaded rod 102 is also slidably connected inside the groove 101. The top of the vertical part of the slider 104 is fixedly connected to the moving plate 103. A conveying motor 105 is fixedly connected to one end of the base 1. The output shaft of the conveying motor 105 is connected to the end of the threaded rod 102 nearby. When the conveyor motor 105 is started, the output shaft of the conveyor motor 105 rotates, which drives the threaded rod 102 to rotate, so that the slider 104 can move horizontally in the slide groove 101, thereby realizing the movement of the moving plate 103 and thus realizing the conveying and moving operation of the roller.
[0021] Among them, such as Figure 4 As shown, the clamping assembly 2 includes a card holder 201 fixedly connected to the movable plate 103. A V-shaped groove is provided at the center of the top of the card holder 201. A card plate 203 is provided above the card holder 201. An inverted V-shaped groove is provided at the center of the bottom of the card plate 203. A stud 202 is fixedly connected to the top of the card holder 201 near both ends. The stud 202 passes through the card plate 203 and is screwed with a nut 204. The holder 201 provides support for the roll. After removing the nut 204, the holder plate 203 can be removed from the stud 202. After the end of the roll is placed in the V-shaped groove on the holder 201, the holder plate 203 is reinstalled and screwed on with the nut 204 to fix it, thus completing the roll fixing work. At this time, the moving plate 103 can move to drive the roll to move.
[0022] Among them, such as Figure 5 As shown, a transverse screw 3011 and a transverse limiting rod 3012 are rotatably connected between the two vertical parts of the transverse moving seat 301. The transverse screw 3011 is threadedly connected to the moving block 303, and the transverse limiting rod 3012 is slidably connected to the moving block 303. A drive motor 302 is fixedly connected to the outer side of the vertical part of the transverse moving seat 301 away from the moving block 303. The output shaft of the drive motor 302 is connected to the end of the transverse screw 3011 near it. The transverse limiting rod 3012 limits the movement direction of the moving block 303. When the drive motor 302 is started, the output shaft of the drive motor 302 rotates, driving the transverse screw 3011 to rotate. The moving block 303 moves laterally along the transverse limiting rod 3012, thereby realizing the transverse movement of the milling cutter 403 and changing the cutting depth.
[0023] Among them, such as Figure 5 As shown, a vertical screw 3041 and a vertical limiting rod 3042 are arranged side by side in the opening of the vertical moving seat 304 and are rotatably connected to the vertical moving seat 304. The vertical screw 3041 is threadedly connected to the longitudinal moving seat 306, and the vertical limiting rod 3042 is slidably connected to the longitudinal moving seat 306. A second drive motor 305 is fixedly connected to the top of the vertical moving seat 304. The output shaft of the second drive motor 305 is connected to the end of the vertical screw 3041 nearby. The vertical limiting rod 3042 limits the movement direction of the longitudinal moving seat 306. When the drive motor 305 is started, the output shaft of the drive motor 305 rotates, driving the vertical screw 3041 to rotate. The longitudinal moving seat 306 moves along the vertical limiting rod 3042, thereby realizing the vertical movement of the milling cutter 403 and changing the cutting height.
[0024] Among them, such as Figure 5As shown, a longitudinal screw 3061 and a longitudinal limiting rod 3062 are arranged side by side in the opening of the longitudinal moving seat 306 and are rotatably connected to the longitudinal moving seat 306. The longitudinal screw 3061 is threadedly connected to the side frame of the moving frame 401 near the longitudinal moving seat 306. The longitudinal limiting rod 3062 is slidably connected to the side frame of the moving frame 401 near the longitudinal moving seat 306. A drive motor 307 is fixedly connected to the outer side of one end of the longitudinal moving seat 306. The output shaft of the drive motor 307 is connected to the end of the longitudinal screw 3061 near it. The longitudinal limiting rod 3062 limits the movement direction of the moving frame 401. When the drive motor 307 is started, the output shaft of the drive motor 307 rotates, driving the longitudinal screw 3061 to rotate. The moving frame 401 moves along the longitudinal limiting rod 3062, thereby realizing the longitudinal movement of the milling cutter 403 and changing the horizontal position of the cutting.
[0025] Among them, such as Figure 6 As shown, a power motor 404 is fixedly connected to the inner side of the side frame of the movable frame 401 away from the longitudinal movable seat 306, and the output shaft of the power motor 404 is connected to the end of the tool holder 402 near it. The movable frame 401 provides support for the tool holder 402 and the milling cutter 403. When the power motor 404 is started, the output shaft of the power motor 404 rotates, which drives the tool holder 402 to rotate, so that the milling cutter 403 can rotate to process the roll.
[0026] The working principle of this embodiment is as follows: In the initial state, first remove the nuts 204 and clamping plates 203 from the two clamping components 2 located at the same end of the moving plate 103. Place the two ends of the first unprocessed roll into the V-shaped grooves on the two clamping seats 201, reinstall the clamping plates 203, and screw them in with nuts 204 to complete the fixing of the first roll. After fixing, start the conveyor motor 105. The output shaft of the conveyor motor 105 rotates, driving the threaded rod 102 to rotate, which allows the slider 104 to move horizontally in the slide groove 101, realizing the movement of the moving plate 103. Move the moving plate 103 so that the roll is located above the center position of the base 1. Start the power motor 404. The output shaft of the power motor 404 rotates, driving the tool holder 402 and the milling cutter 403 to rotate. Under the control of the CNC equipment, start the drive motor 302, drive motor 305, and drive motor 307, causing the transverse screw 3011, vertical screw 3041, and longitudinal screw 3061 to rotate. By rotating the milling cutter 403 and changing its cutting depth, height, and horizontal position, the end of the roll can be machined with a quincunx milling cutter. Due to the symmetrical arrangement of the two moving components 3 and the two cutting components 4, both ends of the roll can be cut simultaneously. When machining the first roll, the two clamping components 2 located at the other end of the moving plate 103 can be used to clamp the two ends of the second roll respectively. After the first roll is machined, the moving plate 103 continues to move so that the second roll is above the center position of the base 1, and the second roll can be machined. At the same time, the machined first roll is removed and the unmachined third roll is replaced and fixed. After the second roll is machined, the moving plate 103 moves in the opposite direction so that the third roll is above the center position of the base 1, and the third roll can be machined. At this time, the second roll can be removed and the unmachined fourth roll is replaced and fixed. This cycle is repeated to continuously machine the rolls.
[0027] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications, equivalent substitutions, or improvements made to the technical solutions described in the foregoing embodiments, or to some of the technical features, shall fall within the protection scope of the present utility model.
Claims
1. A special equipment for milling arc grooves on a rolling mill plum blossom head, comprising a base (1), a clamping assembly (2), a moving assembly (3), and a cutting assembly (4); characterized in that: A movable plate (103) is provided at the top of the base (1) near the center. Clamping components (2) are provided at the top of the movable plate (103) near each of the four corners. Two shifting components (3) are symmetrically arranged on both sides of the center of the top of the base (1). Each shifting component (3) includes a U-shaped horizontal moving seat (301) fixedly connected to the base (1). A moving block (303) is provided at the top of the horizontal part of the horizontal moving seat (301). A vertically arranged U-shaped vertical moving seat (304) is fixedly connected to the top of the moving block (303). The vertical moving seat (304)... The opening points to the center of the base (1). A U-shaped longitudinal moving seat (306) is provided on the side of the vertical part of the vertical moving seat (304) near the center of the base (1). The opening of the longitudinal moving seat (306) points to the center of the base (1). The cutting assembly (4) includes a moving frame (401) located in the opening of the longitudinal moving seat (306). A tool holder (402) is rotatably connected to the outside of the side frame of the moving frame (401) away from the longitudinal moving seat (306). A milling cutter (403) is fixedly connected to one end of the tool holder (402) away from the moving frame (401).
2. The special equipment for milling arc grooves on a rolling mill plum blossom head according to claim 1, characterized in that: The base (1) has an inverted T-shaped groove (101) at its top. The groove (101) is provided with a threaded rod (102) that is rotatably connected to the base (1). The groove (101) is also slidably connected with an inverted T-shaped slider (104) that is threaded through the threaded rod (102). The top of the vertical part of the slider (104) is fixedly connected to the moving plate (103). One end of the base (1) is fixedly connected to a conveying motor (105). The output shaft of the conveying motor (105) is connected to the end of the threaded rod (102) near it.
3. The special equipment for milling arc grooves on a rolling mill plum blossom head according to claim 1, characterized in that: The clamping assembly (2) includes a card holder (201) fixedly connected to the movable plate (103). A V-shaped groove is provided at the center of the top of the card holder (201). A card plate (203) is provided above the card holder (201). An inverted V-shaped groove is provided at the center of the bottom of the card plate (203). Studs (202) are fixedly connected to both ends of the top of the card holder (201). The studs (202) pass through the card plate (203) and are screwed with nuts (204).
4. The special equipment for milling arc grooves on a rolling mill plum blossom head according to claim 1, characterized in that: A horizontal screw (3011) and a horizontal limiting rod (3012) are rotatably connected between the two vertical parts of the horizontal moving seat (301). The horizontal screw (3011) is threadedly connected to the moving block (303), and the horizontal limiting rod (3012) is slidably connected to the moving block (303). A drive motor (302) is fixedly connected to the outside of the vertical part of the horizontal moving seat (301) away from the moving block (303). The output shaft of the drive motor (302) is connected to the end of the horizontal screw (3011) near it.
5. The special equipment for milling arc grooves on a rolling mill plum blossom head according to claim 1, characterized in that: The vertical moving seat (304) has a vertical screw (3041) and a vertical limiting rod (3042) arranged side by side in the opening. The vertical screw (3041) is threadedly connected to the longitudinal moving seat (306), and the vertical limiting rod (3042) is slidably connected to the longitudinal moving seat (306). The top of the vertical moving seat (304) is fixedly connected to a second drive motor (305), and the output shaft of the second drive motor (305) is connected to the end of the vertical screw (3041) nearby.
6. The special equipment for milling arc grooves on a rolling mill plum blossom head according to claim 1, characterized in that: The longitudinal moving seat (306) has a longitudinal screw (3061) and a longitudinal limiting rod (3062) arranged side by side in the opening. The longitudinal screw (3061) is threaded through to the side frame of the moving frame (401) near the longitudinal moving seat (306). The longitudinal limiting rod (3062) is slidably connected through to the side frame of the moving frame (401) near the longitudinal moving seat (306). A drive motor (307) is fixedly connected to the outer side of one end of the longitudinal moving seat (306). The output shaft of the drive motor (307) is connected to the end of the longitudinal screw (3061) near it.
7. The special equipment for milling arc grooves on a rolling mill plum blossom head according to claim 1, characterized in that: A power motor (404) is fixedly connected to the inner side of the side frame away from the longitudinal moving seat (306) of the movable frame (401). The output shaft of the power motor (404) is connected to the end of the tool holder (402) near it.