Portable semi-automatic slot milling machine

Abstract

The utility model provides a portable semi-automatic slot milling machine. The portable semi-automatic slot milling machine comprises a guide rail; the supporting frame is connected to the guide rail in a sliding mode, a milling cutter disc is arranged on the supporting frame, the milling cutter disc extends to the outer side of the supporting frame, a milling cutter blade is arranged on the milling cutter disc, a power system is further arranged on the supporting frame, and the power system is connected with the milling cutter disc; and the lifting system is arranged on the supporting frame and drives the power system and the milling cutter disc to lift up and down. According to the slot milling machine, a geometric frame of a stable structure is formed, and the power system provides power for the milling cutter disc to drive the milling cutter blades to rotate for slot milling; the supporting frame is slidably connected to the guide rail, a walking reference is generated, and the whole machine advances by means of manpower. The lifting system drives the power system and the milling cutter disc to move up and down, the needed height is adjusted according to the requirement for the groove milling depth, the groove milling machine can conduct overall construction after full-bridge assembly is completed, procedures are concentrated, and the production efficiency is high.

Description

Technical Field

[0001] This application relates to the technical field of steel structure bridge manufacturing, and particularly to a portable semi-automatic milling groove machine. Background Art

[0002] In order to ensure that the outer surfaces of the side beams and bottom plates of the bridge are not eroded by rainwater, drip grooves need to be provided on both sides of the bottom of the longitudinal lower flange of the bridge. The sizes vary according to design requirements. Its main function is to intercept the rainwater flowing down along the flange plate, making it form a water droplet tension and drip vertically, preventing the rainwater from eroding the entire outer bottom surface.

[0003] The patent with the application number 201620401944.4 discloses a bridge drip groove device, which includes: side beam flange plate, drip groove, mounting strip, steel nail, adjusting pipe structure, extension pipe structure and fixing frame structure. However, the construction method is not clearly defined for the single-item manufacturing of the drip groove. The currently relatively mature method for milling the drip groove on the market is: the part plate unit enters a fixed machining milling machine for milling the groove, and after the groove milling is completed, the bridge body is assembled. The problems of this method are that each part plate unit needs to be processed separately for milling the groove, and even the ultra-long plate unit parts cannot be processed, etc. The production process is scattered and complex, which is not conducive to efficient production. Utility Model Content

[0004] In view of this, the purpose of this application is to provide a portable semi-automatic milling groove machine to solve the problems in the prior art that each part plate unit needs to be processed separately for milling the groove, or cannot be processed, and the production process is scattered, which is not conducive to efficient production.

[0005] And the technical solution adopted by this application to solve the above technical problems is as follows:

[0006] This application provides a portable semi-automatic milling groove machine, including:

[0007] Guide rail;

[0008] Support frame, the support frame is slidably connected to the guide rail, a milling cutter head is arranged on the support frame, the milling cutter head extends to the outside of the support frame, milling cutter blades are arranged on the milling cutter head, and a power system is further arranged on the support frame, and the power system is connected to the milling cutter head;

[0009] Lifting system, the lifting system is arranged on the support frame and drives the power system and the milling cutter head to move up and down.

[0010] In some embodiments, the support frame includes two symmetrically arranged first frames, a second frame is symmetrically arranged on the upper part between the opposite side edges of the two first frames, and a third frame is symmetrically arranged on the lower part between the opposite side edges of the two first frames;

[0011] A lifting platform is movably connected between the first frames;

[0012] The power system includes an electrical box, a motor connected to the electrical box, the motor is fixed on the lifting platform, and the milling cutter head is connected to the motor through a locking bolt.

[0013] In some embodiments, a fixed chassis is fixedly connected between the first frames below the lifting platform;

[0014] A lifting screw guide rod is threadedly connected to the lifting platform, the lifting screw guide rod extends above the fixed chassis, and a first handle is provided at one end of the lifting screw guide rod away from the fixed chassis.

[0015] In some embodiments, rectangular holes are symmetrically arranged on the left and right sides of the first frame, and wedge-shaped rotary support positioning structures are symmetrically arranged up and down in each hole;

[0016] Both ends of the lifting platform are rectangular parallelepiped structures, and each rectangular parallelepiped structure is respectively located between the wedge-shaped rotary support positioning structures in the holes.

[0017] In some embodiments, a counterweight is provided on the lifting platform.

[0018] In some embodiments, positioning baffles are respectively arranged on both sides of the fixed chassis, and the positioning baffles extend to the position where the lifting platform is located.

[0019] In some embodiments, a chip baffle is provided on the first frame on the side where the milling cutter head is located, and the chip baffle is arc-shaped and extends to the outside of the milling cutter head.

[0020] In some embodiments, the bottom of the chip baffle extends to the bottom of the first frame, and a first chip isolation brush is provided at the bottom of the chip baffle;

[0021] A second chip isolation brush is provided at the bottom of the first frame on the side of the chip baffle close to the milling cutter head;

[0022] A third chip isolation brush is provided at the bottom of the third frame at one end away from the second chip isolation brush.

[0023] In some embodiments, walking wheels are provided around the bottom of the support frame; and / or

[0024] A plurality of magnetic seats are provided on the track, each magnetic seat is fixed on a first bracket through a fixing bolt, the first bracket is fixed on the track through a connecting bolt, and a first switch and a magnet are further provided on the magnetic seat; and / or

[0025] A second support is provided at the bottom of the first frame close to the guide rail. A pin shaft is provided on the second support, and a guide wheel is connected to the lower end of the pin shaft. The guide wheel is slidably connected to the track.

[0026] In some embodiments, each of the first frames has a structure that is smaller at the top and larger at the bottom.

[0027] The milling slot machine of the present application forms a geometric frame with a stable structure. The power system provides power for the milling cutter head, driving the milling cutter blades to rotate for milling slots; by sliding the support frame on the guide rail to generate a walking reference, and the whole moves forward by manpower; the lifting system drives the milling cutter head of the power system to move up and down, and adjusts the required height according to the milling slot depth requirement. The milling slot machine of the present application can carry out overall construction after the overall assembly of the whole bridge is completed, with concentrated procedures and high production efficiency. In addition, the present application also avoids the displacement deviation of the drip groove between the beam segments caused by milling the slots of the unit parts and then assembling and welding them integrally. Therefore, the present application has the advantages of convenient construction, quality assurance, and the ability to adapt to multi-axis curved construction in the processing technology of the drip groove of the steel structure bridge, and has the technical breakthrough value for the processing of the drip groove of the bridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings described below only relate to some embodiments of the present application and do not limit the present application, where:

[0029] Figure 1 is a perspective view of a portable semi-automatic milling slot machine according to an embodiment of the present application;

[0030] Figure 2 is a perspective view of another angle of a portable semi-automatic milling slot machine according to an embodiment of the present application;

[0031] Figure 3 is a perspective view of another angle of a portable semi-automatic milling slot machine according to an embodiment of the present application;

[0032] Figure 4 is a perspective view of another angle of a portable semi-automatic milling slot machine according to an embodiment of the present application;

[0033] Figure 5 is a schematic structural diagram of a magnetic base according to an embodiment of the present application;

[0034] Figure 6 is a schematic structural diagram of a guide wheel, a pin shaft and a second support according to an embodiment of the present application;

[0035] Figure 7 is a bottom view of a portable semi-automatic milling slot machine according to an embodiment of the present application;

[0036] Figure 8This is a top view of a portable semi-automatic milling machine according to an embodiment of the present application.

[0037] Explanation of reference numerals:

[0038] 1 - Guide rail, 2 - First frame, 3 - Motor, 4 - Milling baffle, 5 - Locking bolt, 6 - Milling cutter head, 7 - Axle pin, 8 - Milling cutter blade, 9 - First milling isolation brush, 10 - Second frame, 11 - Counterweight, 12 - First handle, 13 - Lifting screw guide rod, 14 - Positioning baffle, 15 - Fixed chassis, 16 - Third frame, 17 - Bracket 1, 18 - Connecting bolt, 19 - First switch, 20 - Fixed bolt, 21 - Magnetic base, 22 - Magnet, 23 - First bracket, 24 - Pin shaft, 25 - Second bracket, 26 - Guide wheel, 27 - Second switch, 28 - Third switch, 29 - Emergency stop button, 30 - Fourth switch, 31 - Electrical box, 32 - Power cord, 33 - Traveling wheel, 34 - Bracket 2, 35 - Lifting platform, 36 - Wedge-shaped rotary support positioning structure, 37 - Second milling isolation brush, 38 - Third milling isolation brush, 39 - Second handle. Detailed implementation manners

[0039] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of the present application.

[0040] In the description of the present application, it should be understood that the orientation or positional relationships indicated by the terms "length", "width", "thickness", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a unique orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more such features. In the description of the present application, "a plurality" means two or more, unless otherwise specifically defined.

[0041] In the application, the term "exemplary" is used to mean "serving as an example, instance, or illustration". Any embodiment described as "exemplary" in this application is not necessarily to be construed as more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use this application. In the following description, details are set forth for purposes of explanation. It should be understood that those of ordinary skill in the art can recognize that this application can be implemented without these specific details. In other instances, well-known structures and processes are not elaborated in detail so as not to obscure the description of this application with unnecessary details. Therefore, this application is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles disclosed herein.

[0042] For ease of understanding the solution of this application, the spline curves and arrows used for the reference numerals in the drawings are described herein: For the components indicated by the spline curves without arrows, they are solid components, that is, components with a solid structure; for the components indicated by the spline curves with arrows, they are virtual components, that is, components without a solid structure.

[0043] Currently, the milling machine machining center cannot meet the requirements for opening arc-shaped grooves on larger-sized plate unit blocks;

[0044] There is a 30-mm spacing between the milling groove center and the main weld center, which will cause an increase in the welding deformation amount;

[0045] The milling groove position has a great influence on ultrasonic nondestructive testing due to interfering with ultrasonic wave emission.

[0046] Please refer to Figure 1-4 and Figure 7 and Figure 8 , a portable semi-automatic milling machine, comprising:

[0047] A guide rail 1;

[0048] A support frame, the support frame is slidably connected to the guide rail 1, a milling cutter disc 6 is arranged on the support frame, the milling cutter disc 6 extends to the outside of the support frame, milling cutter blades 8 are arranged on the milling cutter disc 6, and a power system is further arranged on the support frame, and the power system is connected to the milling cutter disc 6;

[0049] A lifting system, the lifting system is arranged on the support frame and drives the power system and the milling cutter disc 6 to move up and down.

[0050] It can be understood that according to the construction drawings of the steel structure bridge, the distribution position of the drip grooves is clarified, and the positioning line of the guide rail 1 is drawn on the surface of the milled groove solid component. Before drawing the line, it is necessary to calculate the distance between the guide rail 1 and the drip grooves. After obtaining the distance data, the position side line of the drip grooves (inside or outside the inner side of the milling cutter head 6) is drawn according to the construction drawings, and the positioning side line of the guide rail 1 parallel to the drip grooves is drawn with reference to the position side line of the drip grooves and the distance between the guide rail 1.

[0051] It can be understood that after the guide rail 1 is fixed, the protruding substances on the surface of the milled groove component within the milling machine area are cleaned, and the support frame is installed in matching with the guide rail 1 by means of hoisting and lowering, and is installed from top to bottom into the operation area with the guide rail 1 as the benchmark.

[0052] In some embodiments, the guide rail 1 is a linear guide rail 1. The support frame travels linearly along the guide rail 1 for milling the groove.

[0053] In some embodiments, the guide rail 1 is a curved guide rail 1, realizing a curved groove milling of the reciprocating axis (generating an arc along the X axis towards the Z axis and an arc towards the Y axis); it can adapt to multi-axis curve construction.

[0054] In some embodiments, the material of the guide rail 1 is flexible magnesium alloy.

[0055] It can be understood that the support frame is a hollow three-dimensional structure and is the main body of the milling machine. A milling cutter head 6 is arranged on the support frame, and milling cutters 8 are installed on the milling cutter head 6. The power system provides power for the milling cutters 8 to realize rotary groove milling.

[0056] It can be understood that the lifting system drives the power system and the milling cutter head 6 to move up and down, aiming to adjust the required height in combination with the groove milling depth requirement.

[0057] It can be understood that since the main body of the milling machine is in a mobile operation state, according to the conventional acting force of the milling cutter rotation and the traveling (during the cutting moment, an up-and-down (Z axis) thrust is formed between the milling machine and the milled component, which is not conducive to the close fitting of the blade and the component during the groove milling process of the milling machine, thus directly affecting the traveling stability and the cutting stability. Therefore, the rotation direction of the milling cutter 8 in this application is set to counterclockwise cutting, forming a restraining acting force among the traveling direction, the cutting direction of the milling cutter head 6, the gravity of the milling machine, and the milled groove component. While manually pushing, it ensures the real-time grasping of the milling machine and the milled groove component during the continuous cutting and traveling process, ensuring the smooth traveling during the groove milling operation.

[0058] In the technical solution of this application, the milling machine of this application forms a geometric framework with a stable structure. The power system provides power for the milling cutter head 6 to drive the milling cutter blade 8 to rotate and mill the groove. It is slidably connected to the guide rail 1 through the support frame to generate a walking reference, and the whole moves forward by manpower. The lifting system drives the power system and the milling cutter head 6 to move up and down, and adjusts the required height according to the groove milling depth requirement. The milling machine of this application can carry out overall construction after the overall assembly of the whole bridge is completed. The procedures are centralized and the production efficiency is high. In addition, this application also avoids the displacement deviation of the drip groove between the beam segments caused by milling the grooves of the unit parts and then assembling and welding them as a whole. Therefore, this application has the advantages of convenient construction, quality assurance, and the ability and effect to adapt to multi-axis curved construction in the processing technology of the drip groove of steel structure bridges, and has the technical breakthrough value for the processing of the drip groove of bridges.

[0059] In some embodiments, the support frame includes two symmetrically arranged first frames 2. The upper parts between the opposite side edges of the two first frames 2 are symmetrically provided with second frames 10, and the lower parts between the opposite side edges of the two first frames 2 are symmetrically provided with third frames 16.

[0060] There is a lifting platform 35 movably connected between the first frames 2.

[0061] The power system includes an electrical box 31, a motor 3 connected to the electrical box 31. The motor 3 is fixed on the lifting platform 35, and the milling cutter head 6 is connected to the motor 3 through a locking bolt 5.

[0062] It can be understood that the two first frames 2 are symmetrically arranged. There are two second frames 10, symmetrically located at the upper parts between the side edges of adjacent first frames 2. There are two third frames 16, symmetrically located at the lower parts between the side edges of adjacent first frames 2. In this way, the two first frames 2, the two second frames 10 and the two third frames 16 enclose a hollow geometric framework with a stable structure, and other components are distributed and fixed relying on this geometric framework. It can also be understood that the two first frames 2 are square plates, symmetrically arranged left and right. The upper parts of the two sides of the openings of the two square plates are blocked by the two second frames 10, and the lower parts of the two sides of the openings of the two square plates are blocked by the two third frames 16 to enclose a hollow geometric framework. There is a gap between the second frame 10 and the third frame 16 on the same side, which is convenient for installing other components and reduces the overall weight of the milling machine. Both the second frame 10 and the third frame 16 are plate-shaped.

[0063] In some embodiments, the support frame is a regular shape, such as a cuboid shape, a cube shape, a trapezoid shape or a pyramid shape. It can be understood that the support frame can also be an irregular shape, and this application is not limited thereto.

[0064] In some embodiments, the materials of the first frame 2, the second frame 10 and the third frame 16 are all carbon steel.

[0065] It can be understood that the lifting platform 35 drives the power system and the milling cutter head 6 to move up and down.

[0066] In some embodiments, a second switch 27, a third switch 28, a fourth switch 30 and an emergency stop button 29 are provided on the electrical box 31; an input inlet is also provided on the electrical box 31, and a power cord 32 is connected in the input inlet.

[0067] It can be understood that the second switch 27 is an overload protection switch, which can automatically cut off the faulty circuit when serious overload, short circuit or voltage loss faults occur in the circuit, effectively protecting electrical equipment; the third switch 28 is a convenient off button, which ensures convenient and fast operation when stopping in time; the fourth switch 30 is a convenient on button, which ensures convenient and fast operation when starting up in time; the emergency stop button 29 ensures that all power supplies can be instantly pressed to shut down during an emergency, ensuring safety.

[0068] In some embodiments, a large current contactor is provided inside the electrical box 31, which can frequently switch on and off the large current power supply, and at the same time has the function of power loss release protection, ensuring that the milling slot machine automatically stops when the power supply loses voltage.

[0069] In some embodiments, according to the requirements of the milling cutter blade 8 for torque and rotational speed, a 380V \ 1.5KW asynchronous motor is equipped, and the front motor installation method is matched to ensure the balance of the self-weight of the milling slot machine.

[0070] In some embodiments, a fixed chassis 15 is fixedly connected between the first frames 2 below the lifting platform 35;

[0071] A lifting screw guide rod 13 is threadedly connected to the lifting platform 35, the lifting screw guide rod 13 extends above the fixed chassis 15, and a first handle 12 is provided at one end of the lifting screw guide rod 13 away from the fixed chassis 15;

[0072] Rectangular holes are symmetrically arranged on the left and right of the first frame 2, and wedge-shaped rotary support positioning structures 36 are symmetrically arranged up and down in each hole;

[0073] Both ends of the lifting platform 35 are rectangular structures, and each rectangular structure is respectively located between the wedge-shaped rotary support positioning structures 36 in the holes.

[0074] It can be understood that there is a certain distance between the lifting platform 35 and the fixed chassis 15, and the lifting screw guide rod 13 is not connected to the fixed chassis 15.

[0075] It can be understood that the lifting platform 35, the motor 3 fixed on the lifting platform 35, and the milling cutter disc 6 fixedly connected to the motor 3 rotate slightly up and down in a fan shape with the connection line of two cuboid-shaped structures as the axis, that is, they move up and down in a fan shape.

[0076] In some embodiments, a first perforation hole position is provided on the first frame 2 corresponding to the milling cutter disc 6. The milling cutter disc 6 passes through the first perforation hole position and extends to the outside. The space of the first perforation hole position is larger than the volume of the milling cutter disc 6 located within the first perforation hole position; a second perforation hole position is provided on the first frame 2 corresponding to the motor 3. One end of the motor 3 extends to the outside of the second perforation hole position. The space of the second perforation hole position is larger than the volume of the motor 3 located within the second perforation hole position. In this way, when the lifting platform 35 moves up and down, the motor 3 and the milling cutter disc 6 can move up and down smoothly.

[0077] Furthermore, the motor 3 extending to the outside of the support frame and the milling cutter disc 6 are on the same side of the support frame.

[0078] In some embodiments, the first handle 12 is circular, square, triangular or parallelogram-shaped. It can be understood that the first handle 12 can also be an irregular shape, and the present application is not limited thereto.

[0079] In some embodiments, a counterweight 11 is provided on the lifting platform 35.

[0080] It can be understood that when the first handle 12 is rotated clockwise until the bottom of the lifting screw guide rod 13 generates a mutual thrust with the fixed chassis 15, and then the first handle 12 is continuously rotated clockwise, the lifting platform 35, the motor 3 on the lifting platform 35, the milling cutter disc 6 connected to the motor 3, and the counterweight 11 all rise in a fan shape; when the first handle 12 is rotated counterclockwise, the lifting platform 35, the motor 3 on the lifting platform 35, the milling cutter disc 6 connected to the motor 3, and the counterweight 11 descend in a fan shape under the action of gravity. It can also be understood that during the height adjustment, mainly based on the lowest position of the milling cutter blade 8 as a reference point, the required height is adjusted in combination with the milling groove depth requirement.

[0081] It can also be understood that first, rotate the first handle 12 clockwise. The lifting platform 35, the milling cutter head 6, the milling cutter blades 8, as well as the locking bolts 5, the motor 3, and the counterweight 11 rise, so that the lowest point of the milling cutter blades 8 leaves the surface of the component to be milled. After checking that the operating position is correct, start the fourth switch 30 (convenient start button) on the electrical control box 31. After starting up, the locking bolts 5, the milling cutter head 6, and the milling cutter blades 8 start to rotate counterclockwise at a low speed of 700 revolutions per minute. At this time, rotate the first handle 12 counterclockwise, and together with the lifting platform 35, the milling cutter head 6, the milling cutter blades 8, as well as the locking bolts 5, the motor 3, and the counterweight 11, synchronously descend at a speed of 0.5 mm per second to the required height. Subsequently, the operator tightly holds the top of the milling slot machine frame with both arms, and the advancing speed mainly depends on the resistance generated by the depth of the milling slot operation and the forward movement (the counteracting thrust is about 5 kg) to move forward for milling.

[0082] In some embodiments, second handles 39 are provided at the tops of the first frames 2. It can be understood that the second handles 39 can be U-shaped, annular, or T-shaped, and can also be irregular shapes. The present application is not limited thereto.

[0083] In some embodiments, positioning baffles 14 are respectively provided on both sides of the fixed chassis 15, and the positioning baffles 14 extend to the position where the lifting platform 35 is located.

[0084] It can be understood that the positioning baffles 14 block the opening between the fixed chassis 15 and the lifting platform 35, preventing broken iron shavings from entering the gap between the fixed chassis 15 and the lifting platform 35.

[0085] In some embodiments, a shaving baffle 4 is provided on the first frame 2 on the side where the milling cutter head 6 is located. The shaving baffle 4 is arc-shaped and extends to the outside of the milling cutter head 6;

[0086] The bottom of the shaving baffle 4 extends to the bottom of the first frame 2, and a first shaving isolation brush 9 is provided at the bottom of the shaving baffle 4;

[0087] A second shaving isolation brush 37 is provided at the bottom of the first frame 2 on the side of the shaving baffle 4 close to the milling cutter head 6;

[0088] A third shaving isolation brush 38 is provided at the bottom of the third frame 16 away from one end of the second shaving isolation brush 37.

[0089] It can be understood that the shaving baffle 4 is located outside the advancing direction of the milling cutter head 6 and is arc-shaped.

[0090] It can be understood that the settings of the shaving baffle 4, the first shaving isolation brush 9, the second shaving isolation brush 37, and the third shaving isolation brush 38 prevent iron shavings from splashing out to the working surface in the advancing direction of the milling slot machine during the milling slot construction process, thereby affecting the stable advancement of the milling slot machine.

[0091] Please refer to Figure 7 , in which, walking wheels 33 are provided around the bottom of the support frame. It can be understood that the walking wheels 33 are connected to the bottom of the support frame through the first bracket 17, the second bracket 34 and the pin 7.

[0092] It can be understood that since the processing of the milling slot machine in this application is precision processing and must travel stably, in order to ensure the absolute dimensional relationship between the walking wheels 33 and the channel steel members to be milled, the bottom walking wheels 33 are designed with carbide wheel surfaces to form a hard connection relationship with the channel steel members to be milled. To avoid the walking wheels 33 affecting the traveling stability due to excessive vibration during the operation process.

[0093] It can also be understood that the lifting platform 35, the motor 3 on the lifting platform 35, the milling cutter head 6 connected to the motor 3 and the counterweight 11 form a soft connection relationship with the main body support frame. The vibration generated during the operation process is mainly transmitted to the lifting platform 35. Since the motor 3 carried by the lifting platform 35, the milling cutter head 6 connected to the motor 3 and the counterweight 11 form a vibration quantity confrontation relationship, the effect of reducing the vibration quantity is achieved, and the overall resonance phenomenon of the milling slot machine is effectively avoided. Keep the walking wheels 33 continuously fit and travel with the channel steel members during the dynamic operation process.

[0094] Please refer to Figure 5 , in some embodiments, a plurality of magnetic bases 21 are provided on the track. Each magnetic base 21 is fixed on the first bracket 23 through a fixing bolt 20. The first bracket 23 is fixed on the track through a connecting bolt 18. A first switch 19 and a magnet 22 are further provided on the magnetic base 21.

[0095] It can be understood that according to the above positioning line of the guide rail 1, use an angle gauge to assist in corresponding the inner side of the track to the positioning line position. Rotate the knob of the magnetic base 21 of the guide rail 1 clockwise by 90°. Principle of opening and closing the magnetic base 21: When the knob is rotated clockwise by 90°, when the magnet 22 approaches the internal contact, the magnetic material near the contact will be attracted by the magnet 22, thereby generating magnetization and adsorbing on the surface of the channel steel member to be milled, so that the magnetic base 21 and the channel steel member to be milled generate a magnetic adsorption effect, playing a role of positioning and fastening. When the knob is rotated counterclockwise by 90°, the internal contact of the magnet 22 is disconnected, the magnetic material near the contact loses magnetization, and the magnetic base 21 is disconnected. At this time, the guide rail 1 is fixed in sequence according to the positioning line, and the track laying work is completed.

[0096] Please refer to Figure 6 , in some embodiments, a second bracket 25 is provided at the bottom of the first frame 2 close to the guide rail 1. A pin shaft 24 is provided on the second bracket 25. The lower end of the pin shaft 24 is connected to a guide wheel 26. The guide wheel 26 is slidably connected to the track.

[0097] It can be understood that the pin shaft 24 with the guide wheel 26, the second bracket 25, and the side surface of the first frame 2 close to the guide rail 1 form an inverted U-shaped structure to cooperate with the guide rail 1 and slide on the guide rail 1.

[0098] It can be understood that after the guide rail 1 is fixed, the surface protrusions of the grooved member in the milling machine area are cleaned. The support frame is installed in matching with the guide rail 1 by means of hoisting and lowering. It is installed from top to bottom to the working area with the guide rail 1 and the guide wheel as the reference, and the normal operation travels with the contact surface between the guide wheel and the guide rail 1 as the reference.

[0099] In some embodiments, each of the first frames 2 has a structure that is smaller at the top and larger at the bottom.

[0100] Exemplarily, the first frame 2 is a trapezoidal structure that is smaller at the top and larger at the bottom. In this way, the entire milling machine is a stable pyramid-shaped structure with a smaller top and a larger bottom. The main purpose is to increase the bottom weight, and under the action of the pyramid-shaped structure, the vibration is conducted and offset inward to provide the stability of walking.

[0101] Due to the portable design of the milling machine of the present application, combined with the auxiliary condition that the track can be arranged in a curve, the portable construction of the drip groove after the overall assembly and forming of a relatively large steel structure bridge (steel box girder) is realized. First, the milling machine of the present application replaces the current situation of processing the drip groove only through a traditional fixed milling machine; second, the track used by the milling machine of the present application can be arranged in a curve, and can mill a curve that can go back and forth along the axis (generate an arc in the direction from the X axis to the Z axis and an arc in the direction to the Y axis), adapting to multi-axis curve-shaped construction; third, the milling machine of the present application can carry out overall construction after the overall assembly of the whole bridge is completed, so it avoids the displacement deviation of the drip groove between beam segments caused by milling the unit parts and then assembling and welding them integrally.

[0102] The basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only an example and does not constitute a limitation to the present application. Although not explicitly stated here, those skilled in the art may make various modifications, improvements, and corrections to the present application. Such modifications, improvements, and corrections are proposed in the present application, so such modifications, improvements, and corrections still belong to the spirit and scope of the exemplary embodiments of the present application.

[0103] Meanwhile, this application uses specific terms to describe the embodiments of this application. For example, "an embodiment", "one embodiment", and / or "some embodiments" mean a certain feature, structure, or characteristic related to at least one embodiment of this application. Therefore, it should be emphasized and noted that "an embodiment" or "one embodiment" or "an alternative embodiment" mentioned twice or more at different positions in this specification does not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of this application can be appropriately combined.

Claims

1. A portable semi-automatic milling slot machine, characterized in that, Comprising: Guide rail; Support frame, the support frame is slidably connected to the guide rail, a milling cutter disc is arranged on the support frame, the milling cutter disc extends to the outside of the support frame, milling cutter blades are arranged on the milling cutter disc, a power system is further arranged on the support frame, and the power system is connected to the milling cutter disc; Lifting system, the lifting system is arranged on the support frame and drives the power system and the milling cutter disc to move up and down.

2. The portable semi-automatic milling slot machine according to claim 1, wherein The support frame includes two symmetrically arranged first frames, second frames are symmetrically arranged at the upper part between the opposite side edges of the two first frames, and third frames are symmetrically arranged at the lower part between the opposite side edges of the two first frames; A lifting platform is movably connected between the first frames; The power system includes an electrical box, a motor connected to the electrical box, the motor is fixed on the lifting platform, and the milling cutter disc is connected to the motor through a locking bolt.

3. The portable semi-automatic milling slot machine according to claim 2, wherein A fixed chassis is fixedly connected between the first frames below the lifting platform; A lifting screw guide rod is threadedly connected to the lifting platform, the lifting screw guide rod extends above the fixed chassis, and a first handle is arranged at one end of the lifting screw guide rod away from the fixed chassis.

4. The portable semi-automatic milling slot machine according to claim 2, wherein Rectangular holes are symmetrically arranged left and right on the first frame, and wedge-shaped rotary support positioning structures are symmetrically arranged up and down in each hole; Both ends of the lifting platform are rectangular structures, and each rectangular structure is respectively located between the wedge-shaped rotary support positioning structures in the holes.

5. The portable semi-automatic milling slot machine according to claim 2, wherein, A counterweight is arranged on the lifting platform.

6. The portable semi-automatic milling slot machine according to claim 3, characterized in that, Positioning baffles are respectively arranged on both sides of the fixed chassis, and the positioning baffles extend to the position where the lifting platform is located.

7. The portable semi-automatic milling slot machine according to claim 2, characterized in that, A chip baffle is arranged on the first frame on the side where the milling cutter disc is located, and the chip baffle is arc-shaped and extends to the outside of the milling cutter disc.

8. The portable semi-automatic milling slot machine according to claim 7, wherein, The bottom of the chip baffle extends to the bottom of the first frame, and a first chip isolation brush is arranged at the bottom of the chip baffle; A second chip isolation brush is arranged at the bottom of the first frame on the side of the chip baffle close to the milling cutter disc; A third chip isolation brush is arranged at the bottom of the third frame at one end away from the second chip isolation brush.

9. The portable semi-automatic milling slot machine according to claim 2, wherein Traveling wheels are arranged around the bottom of the support frame; and / or A plurality of magnetic seats are arranged on the guide rail, each magnetic seat is fixed on a first bracket through a fixing bolt, the first bracket is fixed on the guide rail through a connecting bolt, and a first switch and a magnet are further arranged on the magnetic seat; and / or A second bracket is arranged at the bottom of the first frame close to the guide rail, a pin shaft is arranged on the second bracket, a guide wheel is connected to the lower end of the pin shaft, and the guide wheel is slidably connected to the guide rail.

10. The portable semi-automatic milling slot machine according to claim 2, characterized in that, Each first frame has a structure that is smaller at the top and larger at the bottom.

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