A slot milling device

Abstract

The utility model relates to a bicycle front fork processing technical field, concretely is a kind of grooving device, including processing table, support rod top is equipped with milling cutter drive assembly, the middle place of the rear end of processing table is equipped with first electric push rod, first ladder type groove is equipped with movable base plate for horizontal front and back movement above, limit rod is symmetrically equipped between two side plates, screw rod is equipped between the middle place of two side plates, front clamping assembly is equipped with in the left end of tray upper surface, rear clamping assembly that can horizontally move left and right is symmetrically equipped with in the right end of tray upper surface;The grooving device, set movable bottom is in the cooperation of first ladder type block and first ladder type groove, with the combination of first electric push rod, realize movable base plate and move on the upper surface of processing table front and back, tray is in the cooperation of screw rod and limit rod, horizontally move left and right between two side plates, tray upper surface cooperates front clamping assembly with rear clamping assembly, and in the cooperation of milling cutter drive assembly on support rod, it is milled to the cooperation of front fork.

Description

Technical Field

[0001] This utility model relates to the field of bicycle front fork processing technology, specifically a milling device. Background Technology

[0002] The bicycle fork is located at the front of the bicycle structure. Its upper end is connected to the handlebar assembly, the frame assembly mates with the head tube, and the lower end mates with the front axle assembly, forming the bicycle's guiding system. The fork includes the top tube and two fork arms, the bearings for mounting the headset, and the brake or shifter cables for fixing. It needs to be assembled and fitted by creating corresponding openings or grooves through milling. However, when milling grooves on bicycle front forks, it is inconvenient to stably clamp and fit front forks of different sizes. During the milling process, the front fork end cannot be stably clamped and is prone to shaking, which affects the precise machining of the marked milling groove position. The two front fork arms cannot be adjusted and fixed at the same horizontal plane. After the front fork is fixed, it cannot be adjusted and fitted under the milling cutter to achieve machining operations at different positions. Utility Model Content

[0003] The purpose of this invention is to provide a milling device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A milling device includes a machining table. A support rod is provided on the upper surface of the machining table near the rear end. A milling cutter drive assembly is provided on the top of the support rod. A first electric push rod is provided at the middle of the rear end of the machining table. A first trapezoidal groove is formed on the upper surface of the machining table. A movable base plate for horizontal forward and backward movement is provided above the first trapezoidal groove. Side plates are symmetrically provided on the upper surface of the movable base plate. A limiting rod is symmetrically provided between the two side plates. A screw is provided in the middle between the two side plates. A tray for horizontal left and right movement is provided on the screw. A front clamping assembly is provided at the left end of the upper surface of the tray. A rear clamping assembly that can move horizontally left and right is symmetrically provided at the right end of the upper surface of the tray. The lower surface of the movable base plate is provided with a first trapezoidal block, and the rear end face of the first trapezoidal block is connected to the telescopic arm of the first electric push rod; A second electric push rod is provided on the upper surface of the tray near the right end. A first threaded hole is provided on the tray corresponding to the screw. A limit hole is provided on the tray corresponding to the limit rod. The front clamping assembly includes a mounting base and a clamping plate that can be adjusted up and down above the mounting base. The upper surface of the mounting base is symmetrically provided with lead screws, and the lead screws are provided with first wing nuts. The upper surface of the clamping plate is symmetrically provided with through holes. The rear clamping assembly includes a positioning plate and two movable seats that slide back and forth on the upper surface of the positioning plate. The bottom of the positioning plate is symmetrically provided with sliders. The outer wall of the positioning plate is connected to the telescopic arm of the second electric push rod. Each movable seat has a support rod on its top side. The top of the support rod has a second threaded hole. The bottom of the movable seat has a second trapezoidal block. The upper surface of the positioning plate has a second trapezoidal groove. The front end face of the positioning plate has a through groove communicating with the second trapezoidal groove. The front end face of the second trapezoidal block has a limiting post. The limiting post has a second wing nut. An upper clamping plate is sleeved on the support rod. An adjusting rod is rotatably connected to the top center of the upper clamping plate.

[0005] Furthermore, the bottom of the support rod is fixed to the machining table by bolts, the milling cutter drive assembly is fixed to the support rod by bolts, and the milling cutter drive assembly is provided with a drive motor and a milling cutter connected to the output shaft of the drive motor.

[0006] In this invention, a support rod supports the milling cutter drive assembly, and an external control switch controls the start of the drive motor, enabling the milling cutter to rotate and perform slotting and fitting with the bicycle front fork below.

[0007] Specifically, the first electric push rod is fixedly connected to the processing table by screws, the telescopic arm of the first electric push rod extends into the first trapezoidal groove and is fixed to the first trapezoidal block by bolts, and the width of the outer wall of the first trapezoidal block is adapted to the width of the inner wall of the first trapezoidal groove.

[0008] In this utility model, the first electric push rod is electrically connected to an external power source through a wire. The control switch controls the first electric push rod to start, the telescopic arm to extend or shorten, and the first trapezoidal block and the first trapezoidal groove to slide together, so as to realize the horizontal movement of the movable base plate on the surface of the processing table.

[0009] Furthermore, the side plate and the movable base plate are integrally formed, the two ends of the limiting rod are fixedly connected to the side plate by bolts, the right end of the screw is rotatably connected to the side plate, and the left end of the screw is provided with a handwheel.

[0010] In this invention, the handwheel is fixedly connected to the screw rod by a screw, and the handwheel provides a point of force to facilitate the rotation of the screw rod. The right end of the screw rod is rotatably connected to the side plate by a bearing. The inner ring of the bearing is bonded and fixed to the screw rod, and the outer ring of the bearing is bonded and fixed to the side plate, which increases the flexibility of the screw rod rotation.

[0011] It should be noted that a limiting screw hole is provided at the top of the left side plate, and a limiting bolt is provided in the limiting screw hole. The bottom of the limiting bolt is close to the screw rod.

[0012] In this invention, the bottom of the limiting bolt is close to the screw, and the position of the screw rotation is fixed under the action of friction, thereby fixing the position of the movable base plate.

[0013] Furthermore, the inner diameter of the limiting hole is adapted to the outer diameter of the limiting rod, and the inner diameter of the first threaded hole is adapted to the diameter of the screw.

[0014] In this invention, the limiting rod and the limiting hole slide together to achieve stable horizontal movement of the movable base plate, and the screw is threadedly connected to the first threaded hole to facilitate horizontal left and right movement of the movable base plate.

[0015] It is worth adding that the bottom of the mounting base is welded and fixed to the top of the tray, the bottom of the lead screw is fixedly connected to the mounting base, the lead screw passes through the through hole and is threadedly connected to the first wing nut, and the mounting base and the clamping plate are provided with rubber pads on opposite sides.

[0016] In this invention, the lead screw and the through hole are connected to facilitate the corresponding combination and installation of the mounting base and the clamping plate. The installation of the first wing nut fixes the position of the clamping plate under the action of friction, so as to achieve stable clamping and engagement of the left end of bicycle front forks of different thicknesses. The rubber pad increases the friction, stabilizes the clamping and fixation, and reduces the damage to the front fork.

[0017] Furthermore, the slider and the positioning plate are integrally formed, the slider is slidably inserted into the groove, the second electric push rod is fixed to the tray by screws, the end of the telescopic arm of the second electric push rod is fixedly connected to the positioning plate, the movable seat and the second trapezoidal block are integrally formed, the second trapezoidal block is slidably inserted into the second trapezoidal groove, the limiting post protrudes from the through groove, and the second wing nut is threadedly connected to the limiting post.

[0018] In this invention, with the cooperation of the slider, the second electric push rod is electrically connected to an external power source through a wire. The control switch controls the extension or retraction of the telescopic arm, so that the positioning plate can move horizontally left and right on the tray. The movable seat slides between the second trapezoidal block and the second trapezoidal groove, so that the movable seat can move back and forth on the positioning plate. The second butterfly nut fixes the position of the second trapezoidal block on the positioning plate under the action of friction.

[0019] In addition, the support rod and the movable seat are integrally formed. The upper clamping plate has a connection hole corresponding to the support rod. The bottom of the adjusting rod is rotatably connected to the upper clamping plate through a turntable. The top of the adjusting rod is provided with a handle. The adjusting rod is threadedly connected to the second threaded hole. The upper clamping plate and the movable seat are provided with rubber pads on opposite sides.

[0020] In this invention, the upper clamp plate can be moved up and down within the sliding fit between the connecting hole and the support rod. By rotating the throttle, the distance between the upper clamp plate and the movable seat can be adjusted to clamp different sizes of front fork arms. By adjusting the distance between the two movable seats, the front fork arms can be stably clamped and fixed at different opening sizes. With the rubber pad, the friction with the front fork arms is increased, while reducing damage to the clamped front fork arms.

[0021] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model achieves the following by setting a movable bottom, which, in conjunction with the first trapezoidal block and the first trapezoidal groove, and the first electric push rod, enables the movable base plate to move back and forth on the upper surface of the processing table. The tray, in conjunction with the screw and the limiting rod, moves horizontally left and right between the two side plates. The upper surface of the tray is fitted with the front clamping assembly and the rear clamping assembly to tightly clamp bicycle forks of different sizes. In conjunction with the milling cutter drive assembly on the support rod, the forks are milled with grooves.

[0022] 2. This utility model achieves distance adjustment between the clamping plate and the mounting seat by setting a lead screw and a through hole in the clamping plate, and a first wing nut threadedly connected to the lead screw. The movable seat slides with the second trapezoidal groove on the positioning plate through the second trapezoidal block, and the second wing nut is threadedly connected to the limiting post. Under the action of friction, the distance between the movable seats is fixed. The front fork arm can be stably fixed regardless of the opening angle of the front fork arm. Rotating the adjusting rod can adjust the distance between the upper clamping plate and the movable seat, fixing front fork arms of different sizes and reducing the positional displacement caused by front fork wobbling during milling, which affects the processing. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure for adjusting the processing state of this utility model; Figure 3 This is a schematic diagram of the processing table structure of this utility model; Figure 4 This is a schematic diagram of the movable base plate and pallet combination structure of this utility model; Figure 5 This is a schematic diagram of the movable base plate structure of this utility model; Figure 6 This is a schematic diagram of the combined structure of the tray and the front clamping component of this utility model; Figure 7 This is a schematic diagram of the rear clamping assembly structure of this utility model.

[0024] The meanings of the labels in the diagram are as follows: 1. Machining table; 10. First electric linear actuator; 11. Support rod; 12. Milling cutter drive assembly; 13. First trapezoidal groove; 2. Movable base plate; 20. First trapezoidal block; 21. Side plate; 210. Limiting rod; 211. Screw; 2110. Handwheel; 212. Limiting screw hole; 213. Limiting bolt; 3. Tray; 30. Second electric push rod; 31. Slide groove; 32. First threaded hole; 33. Limiting hole; 4. Front clamping assembly; 40. Mounting base; 400. Lead screw; 41. Clamping plate; 410. Through hole; 42. First wing nut; 5. Rear clamping assembly; 50. Positioning plate; 500. Slider; 501. Second trapezoidal groove; 502. Through groove; 51. Movable seat; 510. Support rod; 5100. Second threaded hole; 511. Second trapezoidal block; 512. Limiting post; 513. Second wing nut; 52. Upper clamping plate; 520. Connecting hole; 53. Adjusting rod; 530. Rotary handle. Detailed Implementation

[0025] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-7 This embodiment provides a technical solution: A milling device includes a processing table 1. A support rod 11 is provided on the upper surface of the processing table 1 near the rear end. A milling cutter drive assembly 12 is provided on the top of the support rod 11. The bottom of the support rod 11 is fixed to the processing table 1 by bolts. The milling cutter drive assembly 12 is fixed to the support rod 11 by bolts. The milling cutter drive assembly 12 is provided with a drive motor and a milling cutter connected to the output shaft of the drive motor.

[0027] In this invention, the support rod 11 supports the milling cutter drive assembly 12, and the external control switch controls the start of the drive motor to realize the rotation of the milling cutter to open and slot the bicycle front fork below.

[0028] Furthermore, a first electric push rod 10 is provided at the middle of the rear end of the processing table 1, a first trapezoidal groove 13 is provided on the upper surface of the processing table 1, and a movable base plate 2 for horizontal back-and-forth movement is provided above the first trapezoidal groove 13. The first electric push rod 10 is fixedly connected to the processing table 1 by screws, and the telescopic arm of the first electric push rod 10 extends into the first trapezoidal groove 13 and is fixed to the first trapezoidal block 20 by bolts. The width of the outer wall of the first trapezoidal block 20 is adapted to the width of the inner wall of the first trapezoidal groove 13.

[0029] In this utility model, the first electric push rod 10 is electrically connected to an external power source through a wire. The control switch controls the first electric push rod 10 to start, the telescopic arm to extend or shorten, and the first trapezoidal block 20 and the first trapezoidal groove 13 to slide together, so as to realize the horizontal movement of the movable base plate 2 on the upper surface of the processing table 1.

[0030] Specifically, the upper surface of the movable base plate 2 is symmetrically provided with side plates 21, and the two side plates 21 are symmetrically provided with limiting rods 210 between them. A screw 211 is provided in the middle between the two side plates 21. The side plates 21 and the movable base plate 2 are integrally formed. The two ends of the limiting rods 210 are fixedly connected to the side plates 21 by bolts. The right end of the screw 211 is rotatably connected to the side plates 21, and the left end of the screw 211 is provided with a handwheel 2110.

[0031] In this utility model, the handwheel 2110 is fixedly connected to the screw 211 by screws. The handwheel 2110 provides a force point to facilitate the rotation of the screw 211. The right end of the screw 211 is rotatably connected to the side plate 21 by a bearing. The inner ring of the bearing is bonded and fixed to the screw 211, and the outer ring of the bearing is bonded and fixed to the side plate 21, which increases the flexibility of the screw 211 rotation.

[0032] It should be noted that a limiting screw hole 212 is provided at the top of the left side plate 21, and a limiting bolt 213 is provided in the limiting screw hole 212. The bottom of the limiting bolt 213 is close to the screw rod 211.

[0033] In this utility model, the bottom of the limiting bolt 213 is close to the screw 211, and the position of the screw 211 is fixed under the action of friction, thereby fixing the position of the movable base plate 2.

[0034] Furthermore, the screw 211 is provided with a tray 3 for horizontal left and right movement, the left end of the upper surface of the tray 3 is provided with a front clamping component 4, and the right end of the upper surface of the tray 3 is symmetrically provided with a rear clamping component 5 that can move horizontally left and right. Specifically, the lower surface of the movable base plate 2 is provided with a first trapezoidal block 20, and the rear end face of the first trapezoidal block 20 is connected to the telescopic arm of the first electric push rod 10; Among them, a second electric push rod 30 is provided on the upper surface of the tray 3 near the right end, a first threaded hole 32 is provided on the tray 3 corresponding to the screw 211, and a limit hole 33 is provided on the tray 3 corresponding to the limit rod 210. Furthermore, the inner diameter of the limiting hole 33 is adapted to the outer diameter of the limiting rod 210, and the inner diameter of the first threaded hole 32 is adapted to the diameter of the screw 211.

[0035] In this utility model, the limiting rod 210 and the limiting hole 33 slide together to achieve stable horizontal movement of the movable base plate 2, and the screw 211 is threadedly connected to the first threaded hole 32 to facilitate horizontal left and right movement of the movable base plate 2.

[0036] It is worth adding that the front clamping assembly 4 includes a mounting base 40 and a clamping plate 41 that can be adjusted up and down above the mounting base 40. The upper surface of the mounting base 40 is symmetrically provided with a lead screw 400, and the lead screw 400 is provided with a first wing nut 42. The upper surface of the clamping plate 41 is symmetrically provided with through holes 410. Furthermore, the bottom of the mounting base 40 is welded and fixed to the top of the tray 3, the bottom of the screw 400 is fixedly connected to the mounting base 40, the screw 400 passes through the through hole 410 and is threadedly connected to the first wing nut 42, and the mounting base 40 and the clamping plate 41 are provided with rubber pads on opposite sides.

[0037] In this utility model, the lead screw 400 and the through hole 410 are inserted and matched to facilitate the corresponding combination and installation of the mounting base 40 and the clamping plate 41. The installation of the first wing nut 42 fixes the position of the clamping plate 41 under the action of friction, so as to achieve stable clamping and matching of the left end of bicycle front forks of different thicknesses. The rubber pad increases the friction, stabilizes the clamping and fixing, and reduces the damage to the front fork clamping.

[0038] In addition, the rear clamping assembly 5 includes a positioning plate 50 and two movable seats 51 that slide back and forth on the upper surface of the positioning plate 50. The bottom of the positioning plate 50 is symmetrically provided with sliders 500. The outer wall of the positioning plate 50 is connected to the telescopic arm of the second electric push rod 30. The top side of the movable seats 51 is provided with support rods 510. The top of the support rods 510 is provided with a second threaded hole 5100. The bottom of the movable seats 51 is provided with a second trapezoidal block 511. The upper surface of the positioning plate 50 is provided with a second trapezoidal groove 501. The front end face of the positioning plate 50 is provided with a through groove 502 that communicates with the second trapezoidal groove 501. The front end face of the second trapezoidal block 511 is provided with a limiting post 512. The limiting post 512 is provided with a second wing nut 513. The support rod 510 is fitted with an upper clamping plate 52. The top middle of the upper clamping plate 52 is rotatably connected to an adjusting rod 53.

[0039] Furthermore, the slider 500 and the positioning plate 50 are integrally formed, the slider 500 is slidably inserted into the slide groove 31, the second electric push rod 30 is fixed to the tray 3 by screws, the end of the telescopic arm of the second electric push rod 30 is fixedly connected to the positioning plate 50, the movable seat 51 and the second trapezoidal block 511 are integrally formed, the second trapezoidal block 511 is slidably inserted into the second trapezoidal groove 501, the limiting post 512 passes through the through groove 502, and the second wing nut 513 is threadedly connected to the limiting post 512.

[0040] In this invention, with the cooperation of the slider 500, the second electric push rod 30 is electrically connected to an external power source through a wire. The control switch controls the extension or retraction of the telescopic arm, so that the positioning plate 50 can move horizontally left and right on the tray 3. The movable seat 51 slides between the second trapezoidal block 511 and the second trapezoidal groove 501, so that the movable seat 51 can move back and forth on the positioning plate 50. The second wing nut 513 fixes the position of the second trapezoidal block 511 on the positioning plate 50 under the action of friction.

[0041] Specifically, the support rod 510 and the movable seat 51 are integrally formed. The upper clamping plate 52 has a connection hole 520 corresponding to the support rod 510. The bottom of the adjusting rod 53 is rotatably connected to the upper clamping plate 52 through a turntable. The top of the adjusting rod 53 is provided with a handle 530. The adjusting rod 53 is threadedly connected to the second threaded hole 5100. The upper clamping plate 52 and the movable seat 51 are provided with rubber pads on opposite sides.

[0042] In this invention, with the connecting hole 520 and the support rod 510 slidingly engaged, the upper clamping plate 52 can move up and down within a certain range. By rotating the throttle 530, the distance between the upper clamping plate 52 and the movable seat 51 can be adjusted to clamp different sizes of front fork arms. By adjusting the distance between the two movable seats 51, the front fork arms can be stably clamped and fixed at different opening sizes. With the rubber pad, the friction with the front fork arms is increased, while reducing damage to the clamping of the front fork arms.

[0043] In this embodiment, when the milling device is in use, the support rod 11 with the milling cutter drive assembly 12 is first combined and fixed with the processing table 1 with the first electric push rod 10. Then, the tray 3 with the second electric push rod 30 is combined and connected with the limiting rod 210 and the screw 211 between the two side plates 21. The handwheel 2110 is combined and fixed with the screw 211. The mounting seat 40 with the clamping plate 41 is combined with the tray 3. The positioning plate 50 is slidably connected to the movable base plate 2 through the slider 500. Then, the movable seat 51 with the upper clamping plate 52 is slidably connected to the second trapezoidal groove 501 through the second trapezoidal block 511. The adjusting rod 53 with the throttle 530 is threadedly connected to the support rod 510, and the bottom of the adjusting rod 53 is rotatably connected to the upper clamping plate 52. When milling grooves on bicycle forks of different sizes is required, place the left end of the fork on the mounting base 40, and place the two fork arms between the movable base 51 and the upper clamping plate 52. Rotate the first wing nut 42 to fix the position of the clamping plate 41. Rotate the throttle 530 to make the upper clamping plate 52 fit tightly with the movable base 51 and fix both ends of the fork. According to the position to be processed, control the extension or retraction of the first electric push rod 10 to make the milling cutter in the milling cutter drive assembly 12 aligned with the position of the fork to be processed. Then rotate the handwheel 2110 to make the movable base plate 2 move horizontally left and right to adjust the position of the fork to be processed to correspond with the milling cutter.

Claims

1. A milling device, comprising a machining table (1), characterized in that: The processing table (1) has a support rod (11) near the rear end on its upper surface. The support rod (11) has a milling cutter drive assembly (12) on its top. The processing table (1) has a first electric push rod (10) in the middle of its rear end. The processing table (1) has a first trapezoidal groove (13) on its upper surface. The first trapezoidal groove (13) has a movable base plate (2) for horizontal forward and backward movement above it. The movable base plate (2) has side plates (21) symmetrically arranged on its upper surface. The two side plates (21) have a limit rod (210) symmetrically arranged between them. The two side plates (21) have a screw (211) in the middle between them. The screw (211) has a tray (3) for horizontal left and right movement on it. The tray (3) has a front clamping assembly (4) on the left end of its upper surface. The tray (3) has a rear clamping assembly (5) symmetrically arranged on the right end of its upper surface that can move horizontally left and right. The lower surface of the movable base plate (2) is provided with a first trapezoidal block (20), and the rear end face of the first trapezoidal block (20) is connected to the telescopic arm of the first electric push rod (10); A second electric push rod (30) is provided on the upper surface of the tray (3) near the right end. A first threaded hole (32) is provided on the tray (3) corresponding to the screw (211). A limit hole (33) is provided on the tray (3) corresponding to the limit rod (210). The front clamping assembly (4) includes a mounting base (40) and a clamping plate (41) that can be adjusted up and down above the mounting base (40). The upper surface of the mounting base (40) is symmetrically provided with a lead screw (400), and the lead screw (400) is provided with a first wing nut (42). The upper surface of the clamping plate (41) is symmetrically provided with through holes (410). The rear clamping assembly (5) includes a positioning plate (50) and two movable seats (51) that slide back and forth on the upper surface of the positioning plate (50). The bottom of the positioning plate (50) is symmetrically provided with sliders (500). The outer wall of the positioning plate (50) is connected to the telescopic arm of the second electric push rod (30). Each movable seat (51) has a support rod (510) on its top side. The top of each support rod (510) has a second threaded hole (5100). The bottom of each movable seat (51) has a second trapezoidal block (5100). 11) A second trapezoidal groove (501) is provided on the upper surface of the positioning plate (50), and a through groove (502) communicating with the second trapezoidal groove (501) is provided on the front end face of the positioning plate (50). A limiting post (512) is provided on the front end face of the second trapezoidal block (511), and a second wing nut (513) is provided on the limiting post (512). An upper clamping plate (52) is sleeved on the support rod (510), and an adjusting rod (53) is rotatably connected to the top center of the upper clamping plate (52).

2. The milling device according to claim 1, characterized in that: The bottom of the support rod (11) is fixed to the processing table (1) by bolts, and the milling cutter drive assembly (12) is fixed to the support rod (11) by bolts. The milling cutter drive assembly (12) is provided with a drive motor and a milling cutter connected to the output shaft of the drive motor.

3. The milling device according to claim 1, characterized in that: The first electric push rod (10) is fixedly connected to the processing table (1) by screws. The telescopic arm of the first electric push rod (10) extends into the first trapezoidal groove (13) and is fixed to the first trapezoidal block (20) by bolts. The width of the outer wall of the first trapezoidal block (20) is adapted to the width of the inner wall of the first trapezoidal groove (13).

4. The milling device according to claim 1, characterized in that: The side plate (21) and the movable base plate (2) are integrally formed. The two ends of the limiting rod (210) are fixedly connected to the side plate (21) by bolts. The right end of the screw (211) is rotatably connected to the side plate (21). The left end of the screw (211) is provided with a handwheel (2110).

5. The milling device according to claim 1, characterized in that: The left-side side plate (21) has a limiting screw hole (212) at the top, and a limiting bolt (213) is provided in the limiting screw hole (212). The bottom of the limiting bolt (213) is close to the screw rod (211).

6. The milling device according to claim 1, characterized in that: The inner diameter of the limiting hole (33) is adapted to the outer diameter of the limiting rod (210), and the inner diameter of the first threaded hole (32) is adapted to the diameter of the screw (211).

7. The milling device according to claim 1, characterized in that: The bottom of the mounting base (40) is welded and fixed to the top of the tray (3). The bottom of the screw (400) is fixedly connected to the mounting base (40). The screw (400) passes through the through hole (410) and is threadedly connected to the first wing nut (42). The mounting base (40) and the clamp (41) are provided with rubber pads on opposite sides.

8. The milling device according to claim 1, characterized in that: The slider (500) and the positioning plate (50) are integrally formed. The slider (500) and the slide groove (31) are slidably inserted. The second electric push rod (30) is fixed to the tray (3) by screws. The end of the telescopic arm of the second electric push rod (30) is fixedly connected to the positioning plate (50). The movable seat (51) and the second trapezoidal block (511) are integrally formed. The second trapezoidal block (511) and the second trapezoidal groove (501) are slidably inserted. The limiting post (512) passes through the through groove (502). The second wing nut (513) is threadedly connected to the limiting post (512).

9. The milling device according to claim 8, characterized in that: The support rod (510) and the movable seat (51) are integrally formed. The upper clamping plate (52) has a connecting hole (520) corresponding to the support rod (510). The bottom of the adjusting rod (53) is rotatably connected to the upper clamping plate (52) through a turntable. The top of the adjusting rod (53) is provided with a handle (530). The adjusting rod (53) is threadedly connected to the second threaded hole (5100). The upper clamping plate (52) and the movable seat (51) are both provided with rubber pads on opposite sides.

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