Micro-channel milling device

Abstract

The invention provides a micro-channel milling device, and relates to the technical field of circuit board milling, the micro-channel milling device comprises a main body external unit, and milling top seats are fixedly arranged at the tops of rear vertical plates on the two sides of the main body external unit; a transverse moving seat matched with the guide rail is transversely and slidably arranged at the bottom of the milling top seat; a main milling device is longitudinally and slidably arranged at the bottom of the transverse moving seat and matched with the guide rails; a main body of the main milling device is of a U-shaped structure, an electric cylinder A is fixedly arranged below the middle of the main milling device, and a rotary milling device is fixedly arranged at the telescopic end of the electric cylinder A; a combined all-directional milling function is provided, the positions of the rotary milling device and the vertical milling device can be flexibly controlled through three-axis adjustment, then combined milling is achieved, a straight runner is rapidly machined through rotary milling, then a bent part is machined in a vertical milling mode, automatic machining of the radial micro-runner can be achieved, and the machining efficiency is improved. And compared with a vertical milling mode adopted in the whole process, the vertical milling cutter is not prone to being damaged, and the vertical milling cutter does not need to be frequently replaced.

Description

Technical Field

[0001] The invention relates to the technical field of circuit board milling, and in particular to a micro-channel milling device. Background Art

[0002] When processing the microfluidic channels of circuit boards, a fine milling device is required. The edges of the microfluidic channels of the circuit boards converge radially and cannot be milled with a rotary milling cutter. Therefore, vertical milling cutters are often used for grooving. However, vertical milling cutters have slow milling efficiency and are easily damaged and broken, and are costly.

[0003] The milling devices currently used have the following disadvantages: 1. The single milling method has low milling efficiency, high consumption cost, lack of combined all-round milling function, and each processing takes a long time; 2. Lack of automatic positioning and unlocking functions, making it inconvenient to automatically position the circuit board according to the shape of the circuit board; 3. There is a lack of the function of combing and inspecting the milling grooves, which makes it inconvenient to quickly detect the microchannels of the circuit board when discharging. Summary of the invention

[0004] In view of this, the present invention provides a micro-channel milling device to address the deficiencies in the prior art.

[0005] The present invention provides a micro-channel milling device, which specifically comprises: a main body outer machine, wherein a milling top seat is fixedly arranged on the top of the vertical plates at the rear of both sides of the main body outer machine; a lateral shift seat is arranged at the bottom of the milling top seat in cooperation with a guide rail for horizontal sliding; a main milling device is arranged at the bottom of the lateral shift seat in cooperation with the guide rail for longitudinal sliding; the main body of the main milling device is a U-shaped structure, an electric cylinder A is fixedly arranged at the lower middle of the main milling device, a milling device is fixedly arranged at the telescopic end of the electric cylinder A, and a milling motor for driving the milling cutter in the milling device is arranged outside the milling device; a groove is provided at the front end of one side of the lateral shift seat, and an L-shaped frame is slidably arranged in the groove; the bottom of the L-shaped frame A through slot is provided on the part, an electric cylinder B is fixedly arranged in the middle of the through slot, a connecting piece is fixedly arranged on the telescopic end of the electric cylinder B, a vertical milling motor is arranged above the connecting piece, and a vertical milling device is arranged on the shaft end of the vertical milling motor through the connecting piece; a connecting plate is fixedly arranged on the front upper part of the main outer machine, and an electric cylinder C is fixedly arranged in the middle of the bottom of the connecting plate; a lifting rod is fixedly arranged on the telescopic end of the electric cylinder C, and a control frame is slidably installed on the rear end of the lifting rod through a T-shaped sliding rod; two groups of cross bars are fixedly arranged in the middle below the control frame, and cross slide blocks are slidably arranged outside the two groups of cross bars, and combing needles with round heads on the bottom are integrally arranged in the middle of the bottom of the cross slide blocks.

[0006] Optionally, a material support seat is provided at the top of the main external machine for longitudinal sliding with the guide rail, a working support seat is fixedly provided on the top of the material support seat, and a flange for positioning is integrally provided on the top rear side of the working support seat; positioning pistons are fixedly provided on both sides of the top and the rear end of the working support seat, and positioning blocks for positioning the circuit board are fixedly provided at the telescopic ends of the positioning pistons.

[0007] Optionally, a trigger is fixedly provided on the upper front middle side of the main external machine, and the top front and rear side corners of the trigger are chamfered; an advance and retreat motor is fixedly provided on the upper rear side of the main external machine, and an advance and retreat screw is rotatably provided between the shaft end of the advance and retreat motor and the rear side of the trigger; the advance and retreat screw is threadedly connected to the support seat.

[0008] Optionally, the main body of the milling top seat is a square frame structure, a transverse axis screw is rotatably arranged in the middle of the milling top seat, a transverse axis motor is fixedly arranged outside the milling top seat, and the transverse axis motor is transmission-connected to the transverse axis screw; a through groove is opened at the bottom of the milling top seat, and the middle of the top of the transverse seat extends upward into the milling top seat, and the extended part is threadedly connected to the transverse axis screw.

[0009] Optionally, a first longitudinal axis screw is rotatably arranged at the upper middle portion of the transverse seat, a first longitudinal axis motor is fixedly arranged at the upper rear portion of the transverse seat, the first longitudinal axis motor is drivingly connected to the first longitudinal axis screw, and the first longitudinal axis screw is threadedly connected to the L-shaped frame; a second longitudinal axis screw is rotatably arranged at the lower middle portion of the transverse seat, a second longitudinal axis motor is fixedly arranged at the lower rear portion of the transverse seat, the second longitudinal axis motor is drivingly connected to the second longitudinal axis screw; the second longitudinal axis screw is threadedly connected to the main milling machine.

[0010] Optionally, a main control piston is fixedly arranged at the bottom of the support seat, the telescopic end of the main control piston faces backward, and a U-shaped frame is fixedly arranged at the telescopic end of the main control piston; a pipeline is arranged between the main control piston and the positioning piston, and a one-way valve and a button valve are also connected in the pipeline, and the one-way valve and the button valve are connected to different branches in the pipeline; the button below the button valve contracts when it contacts the trigger.

[0011] Optionally, hydraulic oil is filled between the positioning piston and the main control piston, and the positioning piston extends when the main control piston contracts; and a spring for extending the positioning piston is provided inside the positioning piston.

[0012] Optionally, a trigger baffle is fixedly provided at the front end of the main external unit, and two groups of trigger rods are fixedly provided at the rear side of the trigger baffle, and the trigger rods can contact the U-shaped frame.

[0013] Optionally, a pressure sensor is fixedly arranged in the lifting rod, and the pressure sensor contacts the control frame; two groups of guide rods are fixedly arranged on the top of the lifting rod, and the guide rods are slidably connected to the connecting plate.

[0014] The beneficial effects are as follows: 1. The present invention provides a combined all-round milling function. The positions of the rotary milling device and the vertical milling device can be flexibly controlled through three-axis adjustment to achieve combined milling. The straight channel is quickly processed by rotary milling, and the curved part is processed by vertical milling. The radial microchannel can be automatically processed and the processing efficiency is improved. Compared with the method of using vertical milling throughout the process, the vertical milling cutter is not easily damaged, the service life is increased, and there is no need to frequently replace the vertical milling cutter.

[0015] 2. The present invention adopts a working bracket to position the circuit board, which can achieve an automatically triggered positioning effect. When the button valve moves backward, it contacts the trigger and automatically closes. The positioning piston naturally extends through the internal spring to achieve automatic positioning. When the button valve moves forward, it contacts the trigger and automatically opens. The trigger rod contacts the U-shaped frame to open the main control piston. The main control piston extends to generate negative pressure, and the positioning piston contracts to achieve automatic positioning.

[0016] 3. The present invention is provided with a combing needle, which can automatically detect the microchannel. When the combing needle is aligned with the microchannel, the support seat is moved forward, and the combing needle enters the front microchannel. Following the diffusion of the microchannel, each group of combing needles will automatically separate to achieve adaptation and detect the smoothness of the microchannel. If the microchannel is not milled correctly, it will block the movement of the combing needle. The combing needle transmits the pressure to the control frame, which is then fed back to the pressure sensor and fed back to the verification program to issue a warning. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the placement state structure of an embodiment of the present invention is shown; Figure 2 A schematic diagram of the working state structure of an embodiment of the present invention is shown; Figure 3 A schematic diagram of a three-dimensional cross-sectional structure of an embodiment of the present invention is shown; Figure 4 A schematic diagram of a side elevation cross-sectional structure of an embodiment of the present invention is shown; Figure 5 A schematic diagram of a side cross-sectional structure of an embodiment of the present invention is shown; Figure 6 A schematic diagram of the assembly structure of the milling top seat in the embodiment of the present invention is shown; Figure 7 The embodiment of the present invention is shown Figure 6 A side view structural schematic diagram of; Figure 8 A schematic diagram of the bottom structure of a material support seat in an embodiment of the present invention is shown; Fig. 9 The embodiment of the present invention is shown Figure 4 Schematic diagram of the local enlarged structure at A in the figure.

[0018] Reference numerals list 1. Main external machine; 101. Trigger; 102. Advance and retraction motor; 103. Advance and retraction screw; 2. Milling top seat; 201. Horizontal axis screw; 202. Horizontal axis motor; 3. Transverse seat; 301. First longitudinal axis screw; 302. First longitudinal axis motor; 303. Second longitudinal axis screw; 304. Second longitudinal axis motor; 4. Main milling device; 401. Electric cylinder A; 402. Milling device; 403. Milling motor; 5. L-shaped frame; 501. Electric cylinder B; 502. Connector; 5 03, vertical milling motor; 504, vertical milling machine; 6, support seat; 601, working support seat; 602, positioning piston; 603, positioning block; 604, main control piston; 605, U-shaped frame; 606, one-way valve; 607, button valve; 7, trigger baffle; 701, trigger rod; 8, connecting plate; 801, electric cylinder C; 802, lifting rod; 803, pressure sensor; 804, guide rod; 9, control frame; 901, cross bar; 902, cross slide; 903, combing needle. DETAILED DESCRIPTION

[0019] In order to make the purpose, scheme and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of specific embodiments of the present invention.

[0020] Example 1: Please refer to the attached drawings in the specification. Figures 1 to 9 As shown: The present invention proposes a micro-channel milling device, comprising: a main body outer machine 1, a milling top seat 2 is fixedly arranged on the top of the vertical plates at the rear of both sides of the main body outer machine 1; a lateral displacement seat 3 is arranged at the bottom of the milling top seat 2 to slide horizontally in cooperation with a guide rail; a main milling device 4 is arranged at the bottom of the lateral displacement seat 3 to slide longitudinally in cooperation with the guide rail; the main body of the main milling device 4 is a U-shaped structure, an electric cylinder A401 is fixedly arranged at the lower middle of the main milling device 4, a milling device 402 is fixedly arranged at the telescopic end of the electric cylinder A401, and a milling motor 403 for driving the milling cutter in the milling device 402 is arranged outside the milling device 402; a groove is provided at the front end of one side of the lateral displacement seat 3, an L-shaped frame 5 is slidably arranged in the groove; a through groove is provided at the bottom of the L-shaped frame 5, and a through groove is fixedly arranged in the middle of the through groove There is an electric cylinder B501, a connecting piece 502 is fixedly provided at the telescopic end of the electric cylinder B501, a vertical milling motor 503 is provided above the connecting piece 502, and a vertical milling device 504 is provided on the shaft end of the vertical milling motor 503 through the connecting piece 502; a connecting plate 8 is fixedly provided on the front upper side of the main outer machine 1, and an electric cylinder C801 is fixedly provided in the middle of the bottom of the connecting plate 8; a lifting rod 802 is fixedly provided at the telescopic end of the electric cylinder C801, and a control frame 9 is slidably installed on the rear end of the lifting rod 802 through a T-shaped sliding rod; two groups of cross bars 901 are fixedly provided in the middle below the control frame 9, and a horizontal slider 902 is slidably provided outside the two groups of cross bars 901, and a combing needle 903 with a round bottom is integrally provided in the middle of the bottom of the horizontal slider 902.

[0021] Among them, a material support seat 6 is provided at the top of the main external machine 1 for longitudinal sliding with the guide rail, a working support seat 6 is fixedly provided on the top of the material support seat 6, and a flange for positioning is integrally provided on the top rear side of the working support seat 601; positioning pistons 602 are fixedly provided on both sides of the top and the rear end of the working support seat 601, and positioning blocks 603 for positioning the circuit board are fixedly provided at the telescopic ends of the positioning pistons 602.

[0022] Among them, a trigger 101 is fixedly arranged on the upper front middle side of the main external machine 1, and the top front and rear side corners of the trigger 101 are chamfered; an advance and retreat motor 102 is fixedly arranged on the upper rear side of the main external machine 1, and an advance and retreat screw 103 is rotatably arranged between the shaft end of the advance and retreat motor 102 and the rear side of the trigger 101; the advance and retreat screw 103 is threadedly connected to the support seat 6.

[0023] Among them, the main body of the milling top seat 2 is a square frame structure, a horizontal axis screw 201 is rotatably arranged in the middle of the milling top seat 2, a horizontal axis motor 202 is fixedly arranged outside the milling top seat 2, and the horizontal axis motor 202 is transmission-connected with the horizontal axis screw 201; a through groove is opened at the bottom of the milling top seat 2, and the middle of the top of the transverse displacement seat 3 extends upward into the milling top seat 2, and the extension is threadedly connected with the horizontal axis screw 201.

[0024] Among them, a first longitudinal axis screw 301 is rotatably arranged at the middle and upper part of the transverse movement seat 3, a first longitudinal axis motor 302 is fixedly arranged at the rear and upper part of the transverse movement seat 3, the first longitudinal axis motor 302 is transmission-connected to the first longitudinal axis screw 301, and the first longitudinal axis screw 301 is threadedly connected to the L-shaped frame 5; a second longitudinal axis screw 303 is rotatably arranged at the middle and lower part of the transverse movement seat 3, a second longitudinal axis motor 304 is fixedly arranged at the rear and lower part of the transverse movement seat 3, the second longitudinal axis motor 304 is transmission-connected to the second longitudinal axis screw 303; the second longitudinal axis screw 303 is threadedly connected to the main milling device 4.

[0025] Among them, a main control piston 604 is fixedly arranged at the bottom of the support seat 6, the telescopic end of the main control piston 604 faces backward, and a U-shaped frame 605 is fixedly arranged at the telescopic end of the main control piston 604; a pipeline is arranged between the main control piston 604 and the positioning piston 602, and a one-way valve 606 and a button valve 607 are also connected in the pipeline, and the one-way valve 606 and the button valve 607 are connected to different branches in the pipeline; when the button below the button valve 607 contacts the trigger 101, it contracts and triggers the button valve 607, and the button valve 607 adopts a self-locking button, which is closed when pressed once and opened when pressed again.

[0026] The space between the positioning piston 602 and the main control piston 604 is filled with hydraulic oil, and the positioning piston 602 extends when the main control piston 604 contracts; a spring for extending the positioning piston 602 is provided inside the positioning piston 602 .

[0027] A trigger baffle 7 is fixedly disposed at the front end of the main external unit 1 , and two sets of trigger rods 701 are fixedly disposed at the rear side of the trigger baffle 7 . The trigger rods 701 can contact the U-shaped frame 605 .

[0028] Among them, a pressure sensor 803 is fixedly arranged in the lifting rod 802, and the pressure sensor 803 contacts the control frame 9; two groups of guide rods 804 are fixedly arranged on the top of the lifting rod 802, and the guide rods 804 are slidably connected with the connecting plate 8.

[0029] like Figure 1-7 As shown, starting the horizontal axis motor 202 drives the horizontal axis lead screw 201 to rotate, which can control the horizontal movement of the horizontal shift seat 3; The first longitudinal axis motor 302 drives the first longitudinal axis screw 301 to rotate, and the first longitudinal axis screw 301 can drive the L-shaped frame 5 to move forward and backward; The second longitudinal axis motor 304 drives the second longitudinal axis lead screw 303 to rotate, and the second longitudinal axis lead screw 303 can drive the main milling device 4 to move forward and backward; The control program is set. When milling, the electric cylinder A401 is used to lower the milling device 402, and the milling motor 403 drives the milling device 402 to work, and then the main milling device 4 is moved to perform longitudinal grooving. After completing the longitudinal grooving, the position of the main milling machine 4 is reset, and the electric cylinder B501 is started to lower the vertical milling motor 503 and the vertical milling machine 504, so that the milling of the curved path can be carried out. By combining the two milling methods in sequence, automated milling can be achieved.

[0030] Embodiment 2: Based on embodiment 1, Figure 8 As shown, the unprocessed circuit board is placed on the top of the working support 601, and then the advance and retreat motor 102 is started to drive the advance and retreat screw 103 to rotate, and the support 6 is moved backward through the thread transmission. During this period, the button valve 607 contacts the trigger 101 and automatically closes. The positioning piston 602 is naturally extended by the internal spring, and the hydraulic oil in the main control piston 604 is drawn out to make the main control piston 604 contract. The hydraulic oil in the main control piston 604 passes through the one-way valve 606 and enters the positioning piston 602, adaptively locking the circuit board; On the contrary, when removing the circuit board, the reverse forward and backward motor 102 moves the support seat 6 forward. During this period, the button valve 607 contacts the trigger 101 and automatically opens. The support seat 6 continues to move forward, and the trigger rod 701 contacts the U-shaped frame 605 to open the main control piston 604. The main control piston 604 stretches to generate negative pressure, which completely contracts the positioning piston 602. The hydraulic oil in the positioning piston 602 passes through the button valve 607 and enters the positioning piston 602 to complete the unlocking.

[0031] Embodiment 3: Based on embodiment 1, Fig. 9 As shown, before the circuit board moves forward, the electric cylinder C801 is started to lower the lifting rod 802, and the control frame 9 is synchronously lowered to align the combing needle 903 with the microchannel of the circuit board, and then the support seat 6 is moved forward, and the combing needle 903 enters the front microchannel. Following the diffusion of the microchannel, each group of combing needles 903 will automatically separate and adapt to each other. If there is milling slag in the microchannel, it will be removed. If the microchannel is not milled correctly, it will block the movement of the combing needle 903. The combing needle 903 transmits the pressure to the control frame 9, which is then fed back to the pressure sensor 803, and then fed back to the verification program to issue a warning, and the control frame 9 is raised to move the circuit board forward.

[0032] Specific usage and function of this embodiment: In the present invention, if Figure 1 The unprocessed circuit board is placed on the top of the working support 601, and then the advance and retreat motor 102 is started to drive the advance and retreat screw 103 to rotate, and the support 6 is moved backward through the thread transmission. During this period, the button valve 607 contacts the trigger 101 and automatically closes. The positioning piston 602 is naturally extended by the internal spring, and the hydraulic oil in the main control piston 604 is drawn out to make the main control piston 604 contract. The hydraulic oil in the main control piston 604 passes through the one-way valve 606 and enters the positioning piston 602, adaptively locking the circuit board; On the contrary, when removing the circuit board, the reverse forward and backward motor 102 moves the support seat 6 forward, during which the button valve 607 contacts the trigger 101 and automatically opens, the support seat 6 continues to move forward, the trigger rod 701 contacts the U-shaped frame 605 to open the main control piston 604, the main control piston 604 stretches to generate negative pressure, and the positioning piston 602 is completely retracted, and the hydraulic oil in the positioning piston 602 passes through the button valve 607 and enters the positioning piston 602 to complete unlocking; The horizontal axis motor 202 is started to drive the horizontal axis lead screw 201 to rotate, so as to control the horizontal movement of the lateral displacement seat 3; the first longitudinal axis lead screw 301 is driven to rotate by the first longitudinal axis motor 302, so that the first longitudinal axis lead screw 301 can drive the L-shaped frame 5 to move forward and backward; the second longitudinal axis lead screw 303 is driven to rotate by the second longitudinal axis motor 304, so that the second longitudinal axis lead screw 303 can drive the main milling device 4 to move forward and backward; The control program is set. When milling, the electric cylinder A401 is used to lower the rotary milling device 402, and the rotary milling device 402 is driven to work by the rotary milling motor 403, and then the main milling device 4 is moved to perform longitudinal grooving. After the longitudinal grooving is completed, the position of the main milling device 4 is reset, and the electric cylinder B501 is started to lower the vertical milling motor 503 and the vertical milling device 504, so that the milling of the curved path can be performed. By combining the two milling methods in sequence, automatic milling can be realized; Before the circuit board moves forward, the electric cylinder C801 is started to lower the lifting rod 802, and the control frame 9 is synchronously lowered to align the combing needles 903 with the microchannels of the circuit board, and then the support seat 6 is moved forward, and the combing needles 903 enter the front microchannels. Following the diffusion of the microchannels, each group of combing needles 903 will automatically separate to achieve adaptation. If there is milling slag in the microchannel, it will be removed. If the microchannel is not milled correctly, it will block the movement of the combing needles 903. The combing needles 903 transmit the pressure to the control frame 9, which is then fed back to the pressure sensor 803, and then fed back to the verification program to issue a warning, and the control frame 9 is raised to move the circuit board forward; If the combing needles 903 pass through the microchannel smoothly, the dispersed combing needles 903 and the horizontal slider 902 are automatically reset by the spring outside the horizontal bar 901; The milling work can be completed by subsequently replacing the circuit board and sweeping away the milling slag.

Claims

1. A microchannel milling device, characterized in that: include: A main body outer machine (1), wherein a milling top seat (2) is fixedly arranged on the top of the vertical plates at the rear of both sides of the main body outer machine (1); a transverse seat (3) is arranged at the bottom of the milling top seat (2) in cooperation with a guide rail for horizontal sliding; a main milling device (4) is arranged at the bottom of the transverse seat (3) in cooperation with the guide rail for longitudinal sliding; the main body of the main milling device (4) is a U-shaped structure, an electric cylinder A (401) is fixedly arranged at the middle of the main milling device (4), a milling device (402) is fixedly arranged at the telescopic end of the electric cylinder A (401), and a milling motor (403) for driving the milling cutter in the milling device (402) is arranged outside the milling device (402); a groove is provided at the front end of one side of the transverse seat (3), and an L-shaped frame (5) is slidably arranged in the groove; a through groove is provided at the bottom of the L-shaped frame (5), and an electric cylinder B (501) is fixedly arranged in the middle of the through groove, and the electric cylinder B (501) is fixedly arranged in the middle of the through groove. A connecting piece (502) is fixedly provided at the telescopic end of the movable cylinder B (501), a vertical milling motor (503) is provided above the connecting piece (502), and a vertical milling device (504) is provided at the shaft end of the vertical milling motor (503) through the connecting piece (502); a connecting plate (8) is fixedly provided at the front upper part of the main body outer machine (1), and an electric cylinder C (801) is fixedly provided at the middle of the bottom of the connecting plate (8); a lifting rod (802) is fixedly provided at the telescopic end of the electric cylinder C (801), and a control frame (9) is slidably mounted at the rear end of the lifting rod (802) via a T-shaped sliding rod; two groups of cross bars (901) are fixedly provided at the middle of the bottom of the control frame (9), and a horizontal slider (902) is slidably provided outside the two groups of cross bars (901), and a combing needle (903) with a round bottom is integrally provided at the middle of the bottom of the horizontal slider (902).

2. A microchannel milling device as claimed in claim 1, characterized in that: A material support seat (6) is provided on the top of the main external machine (1) for longitudinal sliding in cooperation with the guide rail; a working support seat (601) is fixedly provided on the top of the material support seat (6); a flange for positioning is integrally provided on the top rear side of the working support seat (601); positioning pistons (602) are fixedly provided on both sides of the top and the rear end of the working support seat (601); and positioning blocks (603) for positioning the circuit board are fixedly provided on the telescopic ends of the positioning pistons (602).

3. A microchannel milling device as claimed in claim 2, characterized in that: A trigger (101) is fixedly arranged on the front middle side of the upper part of the main body external machine (1), and the top front and rear side corners of the trigger (101) are chamfered; an advance / retract motor (102) is fixedly arranged on the upper rear side of the main body external machine (1), and an advance / retract screw (103) is rotatably arranged between the shaft end of the advance / retract motor (102) and the rear side of the trigger (101); the advance / retract screw (103) is threadedly connected to the support seat (6).

4. A microchannel milling device as claimed in claim 1, characterized in that: The main body of the milling top seat (2) is a square frame structure, a horizontal axis lead screw (201) is rotatably arranged in the middle of the milling top seat (2), a horizontal axis motor (202) is fixedly arranged outside the milling top seat (2), and the horizontal axis motor (202) is transmission-connected to the horizontal axis lead screw (201); a through groove is provided at the bottom of the milling top seat (2), and the middle of the top of the transverse seat (3) extends upward into the milling top seat (2), and the extension is threadedly connected to the horizontal axis lead screw (201).

5. A microchannel milling device as claimed in claim 1, characterized in that: A first longitudinal axis lead screw (301) is rotatably arranged at the middle upper part of the transverse seat (3); a first longitudinal axis motor (302) is fixedly arranged at the rear upper part of the transverse seat (3); the first longitudinal axis motor (302) is transmission-connected to the first longitudinal axis lead screw (301); and the first longitudinal axis lead screw (301) is threadedly connected to the L-shaped frame (5); a second longitudinal axis lead screw (303) is rotatably arranged at the middle lower part of the transverse seat (3); a second longitudinal axis motor (304) is fixedly arranged at the rear lower part of the transverse seat (3); the second longitudinal axis motor (304) is transmission-connected to the second longitudinal axis lead screw (303); and the second longitudinal axis lead screw (303) is threadedly connected to the main milling device (4).

6. A micro-channel milling device as claimed in claim 3, characterized in that: A main control piston (604) is fixedly arranged at the bottom of the support seat (6), the telescopic end of the main control piston (604) faces backward, and a U-shaped frame (605) is fixedly arranged at the telescopic end of the main control piston (604); a pipeline is arranged between the main control piston (604) and the positioning piston (602) to communicate, and a one-way valve (606) and a button valve (607) are also connected in the pipeline, and the one-way valve (606) and the button valve (607) are connected to different branches in the pipeline; when the button below the button valve (607) contacts the trigger (101), it contracts.

7. A micro-channel milling device as claimed in claim 6, characterized in that: Hydraulic oil is filled between the positioning piston (602) and the main control piston (604), and the positioning piston (602) extends when the main control piston (604) contracts; a spring for extending the positioning piston (602) is provided inside the positioning piston (602).

8. A micro-channel milling device as claimed in claim 6, characterized in that: A trigger baffle (7) is fixedly provided at the front end of the main external unit (1), and two groups of trigger rods (701) are fixedly provided at the rear side of the trigger baffle (7), and the trigger rods (701) are capable of contacting the U-shaped frame (605).

9. A microchannel milling device as claimed in claim 1, characterized in that: A pressure sensor (803) is fixedly arranged in the lifting rod (802), and the pressure sensor (803) contacts the control frame (9); two groups of guide rods (804) are fixedly arranged on the top of the lifting rod (802), and the guide rods (804) are slidably connected to the connecting plate (8).

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