A vertical lathe for processing a forged piece

Abstract

This invention discloses a vertical lathe for forging parts processing, comprising a mounting component and a cutting tool component. Bolted clamping mechanisms are provided at both ends of the mounting component, and a bolted control lifting component is provided at the top of the clamping mechanism. A threaded sliding cutting tool component is provided on the inner bottom of the control lifting component. The device utilizes the output power of a hydraulic cylinder mounted on a steel base to drive the output end. This, in turn, causes the hydraulic cylinder output end to drive a push rod to extend and retract, which in turn, in conjunction with the output power of a hydraulic hinge rod, drives the output end to extend and retract. This, combined with the gear clamp and fixed clamping plate, effectively fixes the complex-structured product material. The hinged transmission allows for flexible adjustment of the swing rod's orientation angle, thereby improving the equipment's adaptability to processing products with different configurations.

Description

Technical Field

[0001] This invention relates to the field of forging processing technology, and in particular to a vertical lathe for forging processing. Background Technology

[0002] Vertical lathes, also known as vertical machines, are mainly used for machining large and heavy workpieces with large diameters and short lengths, as well as workpieces that are difficult to clamp on horizontal lathes, provided the turning diameter is sufficient. However, heavy workpieces are difficult to clamp on horizontal lathes due to their own weight, which affects machining accuracy. Vertical lathes can solve these problems. Vertical lathes are generally divided into single-column and double-column types. Small vertical lathes are usually made as single-column, while large vertical lathes are made as double-column. The main structural feature of vertical lathes is that their spindle is in a vertical position. The main characteristics of vertical lathes are: the worktable is in a horizontal plane, making workpiece installation and adjustment more convenient; the worktable is supported by guide rails, providing good rigidity and smooth cutting.

[0003] Existing vertical lathes, such as the one disclosed in application number CN202222910046.X for forging processing, include a worktable, a vertical lathe body fixedly mounted on the upper surface of the worktable, a support box fixedly connected to the bottom surface of the worktable, two sliding holes on the upper surface of the worktable, sliding plates slidably connected inside the two sliding holes, two support plates fixedly connected to the upper surface of the worktable, and clamping plates hinged to the front of the two support plates via pivots, with through holes on the front of the two clamping plates, and a connecting plate fixedly connected to the side of the two sliding plates that are close to each other. However, in the above technology, the clamping plates are relatively flat, making it difficult to effectively position products with complex structures during clamping. Therefore, we propose a vertical lathe for forging processing to solve the above problems. Summary of the Invention

[0004] To address the aforementioned problems, this invention proposes a vertical lathe for forging parts processing. This vertical lathe primarily utilizes the output power of a hydraulic cylinder mounted on a steel base to drive the output end. This hydraulic cylinder output end then drives a push rod to extend and retract, which in turn, combined with the output power of a hydraulic hinge rod, drives the output end to extend and retract. This, in turn, allows the gear clamp and fixed clamp to effectively fix the raw material of the complex product structure. The hinged transmission allows for flexible adjustment of the swing rod's orientation angle, thereby improving the machine's adaptability to processing products with different configurations.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A vertical lathe for forging processing includes a mounting component and a cutting tool component. The mounting component has bolt-assembled clamping mechanisms at both ends, and the clamping mechanism has a bolt-assembled control lifting component at its top. The control lifting component has a threaded sliding connection cutting tool component on its bottom inner side.

[0007] As a further technical solution, the mounting component includes a steel base, an open steel pad, a shock absorber, an assembly plate, a rotating shaft, a mounting plate, a transmission housing, a pulley set, a meshing gear set, and an output motor. An open steel pad is provided on the top side of the steel base, and a shock absorber is provided above the inner end of the open steel pad.

[0008] As a further technical solution, the inner side of the open steel pad is provided with a bolt-assembled assembly plate, and the top side of the assembly plate is provided with a rotating shaft, the top side of the rotating shaft is provided with a mounting plate, the inner bottom side of the open steel pad is provided with a bolt-assembled transmission housing, and the inside of the transmission housing is provided with a pulley group and a meshing gear group that are mutually connected for transmission, and one end of the transmission housing is provided with an output motor.

[0009] As a further technical solution, the clamping mechanism includes a bolt steel seat, a sleeve steel seat, a hydraulic cylinder, a push rod, a swing rod, a hydraulic hinge rod, a central block, a fixed clamping plate, an electric rotating bar, a cleaning bar, and a gear clamp. The bolt steel seat is located above both ends of the open steel pad. The sleeve steel seat is located above the bolt steel seat. The inner end of the sleeve steel seat is provided with a push rod that connects to the output end of the hydraulic cylinder. One end of the push rod is hinged to the swing rod of the gear clamp.

[0010] As a further technical solution, a hydraulic hinge rod is provided on the inner end of the swing rod, and a central block is provided on the inner end of the hydraulic hinge rod. A fixing plate is provided on the inner end of the central block, and an electric rotating bar is provided below the central block, and a cleaning bar is provided below the electric rotating bar.

[0011] As a further technical solution, the control hoisting component includes a lifting frame, side strips, a control panel, a top block, a slotted beam, a drive housing, a worm gear assembly, a worm gear block, a boom, a lower horizontal cabin, and a drive screw. The lifting frame is located on the top side of the mounting steel base. Bolted side strips are provided on the outer side of the lifting frame, and a control panel is located below one end of the side strips. A top block is provided on the top side of the lifting frame, and a slotted beam is provided on the top side of the top block.

[0012] As a further technical solution, a worm gear assembly connected to the output end of the drive housing is provided on the slotted beam. A worm block is threadedly connected to the slotted beam through the worm gear assembly. A boom is provided below the side of the worm block, and a lower horizontal compartment is provided on the bottom side of the boom. A drive screw is provided on the inner side of the lower horizontal compartment.

[0013] As a further technical solution, the tool component includes a moving arm, a hydraulic lifting beam, an electric rotary seat, a rotating arm, a robotic arm, a hinge block, a mounting block, a servo motor, and a cutting tool bar. The moving arm is threaded to the outside of the thread of the drive screw. A hydraulic lifting beam is provided below both ends of the moving arm. An electric rotary seat is provided at the output end of the hydraulic lifting beam, and a rotating arm is provided below the electric rotary seat. A robotic arm is provided below both ends of the rotating arm.

[0014] As a further technical solution, a hinge block is provided below the inner end of the robotic arm, and a fitting block is provided at the inner end of the hinge block. A servo motor is provided on the inner side of the fitting block, and a cutting tool bar is provided at the output end of the servo motor.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The invention's device primarily utilizes the output power of a hydraulic cylinder mounted on a steel base to drive the output end. This hydraulic cylinder output end then drives a push rod to extend and retract, which in turn, combined with the output power of a hydraulic hinge rod, drives the output end to extend and retract. This, in turn, allows the gear clamp and fixed clamp plate to work together to effectively fix the raw materials of products with complex structures. The transmission operation through the hinge connection allows for flexible adjustment of the orientation angle of the swing rod, thereby improving the equipment's adaptability to processing products with different configurations. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a vertical lathe for machining forgings;

[0018] Figure 2 This is a schematic diagram of the structure viewed from below in this invention;

[0019] Figure 3 This is a schematic diagram of the structure of the mounting component in this invention;

[0020] Figure 4 This is a schematic diagram of the clamping mechanism in this invention;

[0021] Figure 5 This is a schematic diagram of the tool component in this invention.

[0022] In the diagram: 1. Mounting component; 101. Steel base; 102. Open steel pad; 103. Shock absorber; 104. Assembly plate; 105. Rotating shaft; 106. Mounting plate; 107. Transmission housing; 108. Pulley assembly; 109. Meshing gear set; 1010. Output motor; 2. Clamping mechanism; 201. Bolt steel seat; 202. Set steel seat; 203. Hydraulic cylinder; 204. Push rod; 205. Swing rod; 206. Hydraulic hinge rod; 207. Central block; 208. Fixed clamping plate; 209. Electric rotating bar; 2010. Cleaning bar; 2 011. Gear clamp; 3. Control hoisting components; 301. Lifting frame; 302. Side strip; 303. Control panel; 304. Top block; 305. Slotted beam; 306. Drive housing; 307. Worm gear assembly; 308. Worm gear block; 309. Boom; 3010. Lower transverse compartment; 3011. Drive screw; 4. Tooling components; 401. Moving arm; 402. Hydraulic lifting beam; 403. Electric rotating seat; 404. Rotating arm; 405. Mechanical arm; 406. Hinge block; 407. Set block; 408. Servo motor; 409. Lathe tool bar. Detailed Implementation

[0023] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0024] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] 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.

[0026] Please see Figure 1-5 In this embodiment of the invention, a vertical lathe for forging processing includes a mounting component 1 and a cutting tool component 4. The mounting component 1 is provided with a bolt-assembled clamping mechanism 2 at both ends, and the clamping mechanism 2 is provided with a bolt-assembled control lifting component 3 at the top. The cutting tool component 4 is provided with a threaded sliding connection on the bottom inner side of the control lifting component 3.

[0027] The mounting component 1 includes a steel base 101, an open steel pad 102, a shock absorber 103, an assembly plate 104, a rotating shaft 105, a mounting plate 106, a transmission housing 107, a pulley set 108, a meshing gear set 109, and an output motor 1010. An open steel pad 102 is provided on the top side of the steel base 101, and a shock absorber 103 is provided above the inner end of the open steel pad 102.

[0028] In the embodiments of the present invention, when in use, the open steel pad 102 is supported by the steel base 101 and placed at the processing location. The shock absorber 103 is used to effectively limit and fit the mounting plate 106 to achieve the effect of effectively preventing vibration. The clamping mechanism 2, the control and hoisting component 3, and the tool component 4 are assembled and spliced ​​through the open steel pad 102.

[0029] An assembly plate 104 for bolt assembly is provided on the inner side of the open steel pad 102, and a rotating shaft 105 is provided on the top side of the assembly plate 104. A mounting plate 106 is provided on the top side of the rotating shaft 105. A transmission housing 107 for bolt assembly is provided on the inner bottom side of the open steel pad 102, and a pulley set 108 and a meshing gear set 109 that are connected to each other are provided inside the transmission housing 107. An output motor 1010 is provided at one end of the transmission housing 107.

[0030] In an embodiment of the present invention, when processing is required, the output motor 1010 outputs power to drive the output end to run, thereby causing the output motor 1010 to drive the meshing gear set 109 inside the transmission housing 107 to mesh and drive. After the meshing gear set 109 meshes and drives, the pulley set 108 achieves output transmission. After the pulley set 108 achieves output transmission, the output end of the transmission housing 107 drives the mounting plate 106 on the top side of the rotating shaft 105 to run to a suitable angle position according to the processing requirements.

[0031] The clamping mechanism 2 includes a bolt steel seat 201, a sleeve steel seat 202, a hydraulic cylinder 203, a push rod 204, a swing rod 205, a hydraulic hinge rod 206, a central block 207, a fixed clamping plate 208, an electric rotating bar 209, a cleaning bar 2010, and a gear clamp 2011. The bolt steel seat 201 is located above both ends of the open steel pad 102. The sleeve steel seat 202 is located above the bolt steel seat 201. The inner end of the sleeve steel seat 202 is provided with a push rod 204 that connects to the output end of the hydraulic cylinder 203. One end of the push rod 204 is hinged to the swing rod 205 of the gear clamp 2011.

[0032] In an embodiment of the present invention, the product is then placed on the mounting plate 106 using a hoisting device. After the hydraulic cylinder 203 on one side of the steel base 202 outputs power to drive the output end to run, the hydraulic cylinder 203 outputs power to drive the push rod 204 to run. After the push rod 204 runs, the swing rod 205 and the gear clamp 2011 cooperate to clamp and fix the product in a suitable position.

[0033] A hydraulic hinge rod 206 is provided on the inner end of the swing arm 205, and a middle block 207 is provided on the inner end of the hydraulic hinge rod 206. A fixing clamp 208 is provided on the inner end of the middle block 207, and an electric rotating bar 209 is provided below the middle block 207. A cleaning bar 2010 is provided below the electric rotating bar 209.

[0034] In an embodiment of the present invention, after the cutting tool component 4 processes the product, the hydraulic hinge rod 206 outputs power to drive the output end to perform hinge transmission. When the hydraulic hinge rod 206 outputs power to extend and retract, the middle block 207, together with the lower fixed clamping plate 208, can effectively protect the product. With the cooperation of the electric rotating bar 209 and the cleaning bar 2010, the waste material is discharged from the equipment through the open steel pad 102 to achieve the cleaning effect.

[0035] The control hoisting component 3 includes a lifting frame 301, side strips 302, control panel 303, top block 304, slotted beam 305, drive housing 306, worm gear assembly 307, worm gear block 308, boom 309, lower transverse cabin 3010, and drive screw 3011. The lifting frame 301 is located on the top side of the mounting steel base 202. The outer side of the lifting frame 301 is provided with bolted side strips 302, and the control panel 303 is located below one end of the side strips 302. The top side of the lifting frame 301 is provided with a top block 304, and the top side of the top block 304 is provided with a slotted beam 305.

[0036] In the embodiments of the present invention, when the product is moved to a suitable processing position, the control panel 303 below one end of the side strip 302 is used to effectively control the equipment. Since the lifting frame 301, the top block 304, and the slotted beam 305 are all bolted together, they can effectively provide support and facilitate quick assembly, splicing, and disassembly by the user.

[0037] A worm gear assembly 307 is provided on the slotted beam 305 to connect to the output end of the drive housing 306. A worm block 308 is threadedly connected to the slotted beam 305 through the worm gear assembly 307. A boom 309 is provided on the lower side of the worm block 308, and a lower transverse chamber 3010 is provided on the bottom side of the boom 309. A drive screw 3011 is provided on the inner side of the lower transverse chamber 3010.

[0038] In an embodiment of the present invention, when processing is required, the output power of the drive housing 306 is used to drive the output power of the drive housing 306 to run, which enables the worm gear assembly 307 on the slotted beam 305 to run, and the worm block 308 to run to a suitable position. When the worm block 308 runs to a suitable position, the output power of the lower transverse chamber 3010 is used to drive the lead screw 3011 to run the tool component 4 to a suitable position.

[0039] The tool component 4 includes a movable arm 401, a hydraulic lifting beam 402, an electric rotary seat 403, a rotating arm 404, a robotic arm 405, a hinge block 406, a mounting block 407, a servo motor 408, and a cutting tool bar 409. The movable arm 401 is threaded to the outside of the thread of the drive screw 3011. The hydraulic lifting beam 402 is provided below both ends of the movable arm 401. The electric rotary seat 403 is provided at the output end of the hydraulic lifting beam 402. The rotating arm 404 is provided below the electric rotary seat 403. The robotic arm 405 is provided below both ends of the rotating arm 404.

[0040] In an embodiment of the present invention, after the tool component 4 moves to a suitable position, the hydraulic lifting beam 402 below both ends of the movable arm 401 outputs power to drive the output end to extend and retract. The hydraulic lifting beam 402 outputs power to make the electric rotary seat 403 move to a suitable processing height. With the cooperation of the electric rotary seat 403 and the rotating arm 404, the robotic arm 405 moves to a suitable processing angle.

[0041] A hinge block 406 is provided at the lower inner end of the robotic arm 405, and a fitting block 407 is provided at the inner end of the hinge block 406. A servo motor 408 is provided on the inner side of the fitting block 407, and a cutting tool bar 409 is provided at the output end of the servo motor 408.

[0042] In an embodiment of the present invention, when the robotic arm 405 moves to a suitable processing angle, the hinge transmission of the robotic arm 405 is activated, causing the output end of the mounting block 407 and the servo motor 408 to output power to drive the output end. In this way, the cutting tool bar 409 set at the output end of the servo motor 408 can achieve effective processing operation on the product mounted on the mounting plate 106.

[0043] The working principle of this invention is as follows: In use, the open steel pad 102 is supported by the steel base 101 and placed at the processing location. The shock absorber 103 effectively limits and fits the mounting plate 106 to prevent vibration. The clamping mechanism 2, the control and lifting component 3, and the tool component 4 are assembled and connected through the open steel pad 102. Then, the product is placed on the mounting plate 106 using lifting equipment. The hydraulic cylinder 203 on one side of the steel base 202 outputs power to drive the output end, which in turn drives the push rod 204. After the push rod 204 moves, the swing rod 205 and the gear clamp 2011 cooperate to clamp and fix the product in a suitable position. Once the product is positioned for processing, the control panel 303 located below one end of the side bar 302 allows for effective control of the equipment. Since the lifting frame 301, top block 304, and slotted beam 305 are all bolted connections, they provide effective support and facilitate quick assembly and disassembly. When processing is required, the output motor 1010 drives the output end, which in turn drives the meshing gear set 109 inside the transmission housing 107. Once the meshing gear set 109 is engaged, the pulley set 108 achieves output transmission. The output end of the transmission housing 107 drives the mounting plate 106 on the top side of the rotating shaft 105 to move to a suitable angle position according to the processing requirements. When processing is required, the output end of the drive housing 306 outputs power to drive the output end of the drive housing 306 to move, which in turn drives the worm gear assembly 307 on the slotted beam 305 to move the worm block 308 to a suitable position. When the worm block 308 moves to a suitable position, the output end of the lower transverse chamber 3010 outputs power to drive the lead screw 3011 to move the tool component 4 to a suitable position. After the tool component 4 moves to a suitable position, the hydraulic lifting beams 402 below both ends of the moving arm 401 output power to drive the output end to extend and retract. The output power of the lifting beam 402 enables the electric rotary seat 403 to move to a suitable machining height. Through the cooperation of the electric rotary seat 403 and the rotating arm 404, the robotic arm 405 moves to a suitable machining angle. Once the robotic arm 405 reaches the appropriate machining angle, its hinge transmission operates, causing the output end of the mounting block 407 and the servo motor 408 to output power and drive the output end. This allows the cutting tool bar 409, located at the output end of the servo motor 408, to effectively machine the product mounted on the mounting plate 106. After the tool component 4 has machined the product, the hydraulic articulation rod 206 outputs power to drive the output end through hinge transmission. When the hydraulic articulation rod 206 extends or retracts,...In this way, the central block 207, together with the lower fixed clamping plate 208, can effectively protect the product, and the coordinated action of the electric rotating strip 209 and the cleaning strip 2010 allows waste to be discharged from the equipment through the open steel pad 102, thus achieving a cleaning effect.

[0044] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0045] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A vertical lathe for forging, comprising a mounting component (1) and a cutting tool component (4), characterized in that: The mounting component (1) is provided with bolt-assembled clamping mechanism (2) above both ends, and the top of the clamping mechanism (2) is provided with bolt-assembled control hoisting component (3), and the bottom inner side of the control hoisting component (3) is provided with threaded sliding connected tool component (4). The mounting component (1) includes a steel base (101), an open steel pad (102), a shock absorber (103), an assembly plate (104), a rotating shaft (105), a mounting plate (106), a transmission housing (107), a pulley assembly (108), a meshing gear assembly (109), and an output motor (1010). An open steel pad (102) is provided on the top side of the steel base (101), and a shock absorber (103) is provided above the inner end of the open steel pad (102). The inner edge of the open steel pad (102)... A bolt-assembled assembly plate (104) is provided on the side, and a rotating shaft (105) is provided on the top side of the assembly plate (104). A mounting plate (106) is provided on the top side of the rotating shaft (105). A bolt-assembled transmission housing (107) is provided on the inner bottom side of the open steel pad (102). A belt pulley group (108) and a meshing gear group (109) that are connected to each other are provided inside the transmission housing (107). An output motor (1010) is provided at one end of the transmission housing (107). The clamping mechanism (2) includes a bolt steel seat (201), a sleeve steel seat (202), a hydraulic cylinder (203), a push rod (204), a swing rod (205), a hydraulic hinge rod (206), a central block (207), a fixed clamping plate (208), an electric rotating bar (209), a cleaning bar (2010), and a gear clamp (2011). The bolt steel seat (201) is located above both ends of the open steel pad (102). The sleeve steel seat (202) is located above the bolt steel seat (201). The inner end of the sleeve steel seat (202) is provided with a connecting... The push rod (204) at the output end of the hydraulic cylinder (203) is hinged to the swing rod (205) of the gear clamp (2011) at one end. The swing rod (205) is provided with a hydraulic hinge rod (206) at the inner end. The hydraulic hinge rod (206) is provided with a middle block (207) at the inner end. The middle block (207) is provided with a fixed clamping plate (208) at the inner end. The middle block (207) is provided with an electric rotating bar (209) below it. The electric rotating bar (209) is provided with a cleaning bar (2010) below it.

2. The vertical lathe for forging parts according to claim 1, characterized in that: The control hoisting component (3) includes a lifting frame (301), side strips (302), control panel (303), top block (304), slotted beam (305), drive housing (306), worm gear assembly (307), worm gear block (308), boom (309), lower transverse cabin (3010), and drive screw (3011). The lifting frame (301) is located on the top side of the mounting steel base (202). The outer side of the lifting frame (301) is provided with bolted side strips (302), and a control panel (303) is located below one end of the side strips (302). The top side of the lifting frame (301) is provided with a top block (304), and the top side of the top block (304) is provided with a slotted beam (305).

3. A vertical lathe for forging parts according to claim 2, characterized in that: The slotted beam (305) is provided with a worm gear assembly (307) that connects to the output end of the drive housing (306). The slotted beam (305) is threadedly connected to a worm block (308) through the worm gear assembly (307). A boom (309) is provided below the side of the worm block (308), and a lower horizontal compartment (3010) is provided on the bottom side of the boom (309). A drive screw (3011) is provided on the inner side of the lower horizontal compartment (3010).

4. A vertical lathe for forging parts according to claim 3, characterized in that: The cutting tool component (4) includes a movable arm (401), a hydraulic lifting beam (402), an electric rotary seat (403), a rotating arm (404), a robotic arm (405), a hinge block (406), a mounting block (407), a servo motor (408), and a cutting tool bar (409). The movable arm (401) is threaded to the outside of the thread of the drive screw (3011). The hydraulic lifting beam (402) is provided below both ends of the movable arm (401). The output end of the hydraulic lifting beam (402) is provided with an electric rotary seat (403), and the rotating arm (404) is provided below the electric rotary seat (403). The robotic arm (405) is provided below both ends of the rotating arm (404).

5. A vertical lathe for forging parts according to claim 4, characterized in that: A hinge block (406) is provided below the inner end of the robotic arm (405), and a fitting block (407) is provided at the inner end of the hinge block (406). A servo motor (408) is provided on the inner side of the fitting block (407), and a cutting tool bar (409) is provided at the output end of the servo motor (408).

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