Three-blade spiral chip milling cutter and automatic chip milling machine thereof

Abstract

The invention relates to the technical field of metal material cutting, in particular to a three-blade spiral chip milling cutter and an automatic chip milling machine thereof.The three-blade spiral chip milling cutter comprises an operation box, moving grooves are formed in the two sides of the operation box, a filter plate is jointly placed in the moving grooves in the two sides, springs are jointly installed between the filter plate and the moving grooves, and through grooves formed in the operation box are formed in the two sides of the filter plate; a collecting bin detachably connected with the operation box is arranged outside the through groove, and the four walls of the operation box block metal scraps generated during workpiece cutting, so that the situation that the metal scraps generated during metal workpiece cutting splash is effectively avoided. The three-blade spiral chip milling cutter is simple in structure and convenient to use, metal scraps generated when a workpiece on the filter plate is cut can be collected through the collecting bin, meanwhile, the filter plate not only filters cooling liquid so that the cooling liquid can be recycled, the metal scraps and the cooling liquid can be automatically separated, and the three-blade spiral chip milling cutter can be rapidly replaced by disassembling the replacing ring.

Description

Technical Field

[0001] The invention relates to the technical field of metal material cutting, in particular to a three-blade spiral chip milling cutter and an automatic chip milling machine thereof. Background Art

[0002] A milling machine is a milling machine, which mainly refers to a machine tool that uses a milling cutter to process various surfaces of a workpiece. Usually, the rotation of the milling cutter is the main motion, and the movement of the workpiece and the milling cutter is the feed motion.

[0003] The prior art discloses a Chinese patent with application number CN202410579045.2, a multi-station milling machine and its use method, and discloses a dust collection mechanism that achieves the effect of adsorbing and collecting processing debris while performing sharp cutting on the workpiece, and a loading and unloading mechanism that achieves the effect of automatic loading and unloading.

[0004] The above-mentioned device can additionally adopt an external dust collection mechanism when collecting waste chips during processing, and is unable to separate waste liquid. It can only process cylindrical workpieces during processing, but cannot meet the processing requirements of plate-shaped workpieces. In addition, when the milling cutter is working, since the working object is a metal material, the milling cutter is often damaged, and the milling cutter will generate a high temperature during operation. If it is replaced directly, it is easy to cause burns to the staff. Therefore, there is an urgent need for a milling machine that can quickly and conveniently replace the milling cutter. Summary of the invention

[0005] The object of the present invention is to provide a three-edge spiral milling cutter and an automatic milling machine thereof to solve the problems raised in the above background technology.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] An automatic milling machine comprises a working box, wherein movable grooves are provided on both sides of the working box, filter plates are placed in the movable grooves on both sides, springs are installed between the filter plates and the movable grooves, through grooves are provided on both sides of the filter plates, a collecting bin detachably connected to the working box is provided outside the through grooves, a slide groove provided outside the working box is provided above the collecting bin, a slide groove is installed in the slide groove through an electric slider for sliding, a hydraulic rod is fixedly installed on the upper end surface of the slide, a connecting frame is fixedly installed on the top of the hydraulic rod, two guide rods arranged front and back are installed between the connecting frames on both sides, a movable frame is installed between the two guide rods through an electric slider for sliding, a center plate is rotatably installed in the middle of the movable frame, a mounting frame is rotatably installed on the lower end surface of the center plate through a motor, a replacement ring is detachably installed on the outside of the mounting frame, and a three-blade spiral milling cutter is detachably installed on the lower end surface of the replacement ring.

[0008] Furthermore, a steering wheel rotatably connected to the moving frame is provided on one side of the center plate, the circular axis in the center of the steering wheel passes through the moving frame and is fixedly connected to the center plate, an electric push rod fixedly connected to the moving frame is provided below the steering wheel, and a rack engaged with the steering wheel is fixedly installed at the telescopic end of the electric push rod.

[0009] Furthermore, a card plate penetrating the mounting frame is slidably installed in the middle of the mounting frame in an annular direction, and the adjacent side of the plurality of card plates is inclined, and a spring is commonly connected between the card plate and the mounting frame, and a conical frame penetrating and sliding on the mounting frame is provided between the plurality of card plates, and the upper part of the conical frame is always in contact with the card plate, and a driven wedge block is fixedly installed on the top of the conical frame, and a pressing rod is slidably installed on one side of the mounting frame, and a spring is provided on the outer sleeve of the pressing rod, and an active wedge block is fixedly installed on one end of the pressing rod penetrating the mounting frame.

[0010] Furthermore, a rotating circle is rotatably installed on the lower end surface of the center plate through an electric slider, a rotating plate is rotatably installed on the inner side of the rotating circle, and a rotating protective frame is rotated at one end of the rotating plate away from the rotating circle. The protective frame is L-shaped and is slidably connected to the center plate.

[0011] Furthermore, a center rod penetrating the center plate is fixedly installed in the middle of the upper end surface of the mounting frame, a rectangular plate is fixedly installed on one side of the upper end surface of the center plate, a round rod is rotatably installed in the middle of the rectangular plate, one end of the round rod and the top of the center rod are fixedly installed with mutually meshing bevel gears, a cam is fixedly installed on the other end of the round rod, an air cylinder is fixedly installed at one end of the center plate, a piston rod is slidably installed in the middle of the air cylinder, an air blowing pipe is provided at the bottom of the air cylinder, a pressing frame is rotatably installed on one side of the cam, and a cylinder on one side of the pressing frame slides in the piston rod.

[0012] Furthermore, a liquid storage tank is fixedly installed on one side of the upper end surface of the center plate, and the liquid storage tank is used to store coolant. A nozzle rotatably connected to the center plate is provided on one side of the liquid storage tank, and a connecting pipe is commonly connected between the nozzle and the liquid storage tank.

[0013] Furthermore, grooves are provided on both sides of the filter plate, and fixing rods are detachably installed in the grooves. Interlaced rings are rotatably installed on the tops of the two fixing rods, and buckles are alternately provided between the two rings. Cylinders are fixedly installed in the middle of the two rings, and arc blocks are fixedly installed at the telescopic ends of the cylinders.

[0014] Furthermore, installation openings are provided at the four corners of the upper end surface of the working box, and side frames are provided on both sides of the upper end surface of the filter plate. Electric push plates arranged in an inverted L shape are fixedly installed on both sides of the side frames. The end of the electric push plate away from the side frame is placed in the installation opening, and two traction plates are jointly installed between the two side frames.

[0015] Furthermore, a threaded rod is installed on the middle part of the upper side of the side frame through the rotation of a motor, and an L-shaped movable groove is provided below the threaded rod and is opened on the side frame. An adjusting frame is threadedly installed on the threaded rod, and an upper frame is fixedly installed on one end of the adjusting frame. The upper frame is set at a right angle, and the four upper frames are all set diagonally. A sliding rod is slidably installed on one side of the upper frame, and a lower frame is fixedly installed on the bottom of the sliding rod. A spring is provided on the outer sleeve of the sliding rod and the spring is located between the upper frame and the lower frame.

[0016] Furthermore, the three-blade spiral milling cutter can be detachably installed on the lower end surface of the replacement ring. The three-blade spiral milling cutter includes a blade head, which has at least three blades. A shank is provided on the upper part of the blade head. The blade head and the shank are connected by bolts. The blade head is positioned and connected to the shank by a cross-shaped concave-convex groove.

[0017] Beneficial effects of the present invention:

[0018] 1. The present invention can enable the three-blade spiral milling cutter to press the filter plate with a spring to the bottom of the moving groove through the retraction of the hydraulic rod. At this time, the filter plate is located in the inner cavity of the working box. The four walls of the working box block the metal waste generated when the workpiece is cut, effectively avoiding the occurrence of metal waste splashing when the metal workpiece is cut, and the metal waste generated by the workpiece on the filter plate during cutting can be collected by the setting of the collecting bin. At the same time, the filter plate not only filters the coolant for recycling, but also can automatically separate the metal waste and the coolant. The slide frame slides in the slide groove and cooperates with the moving frame to slide on the guide rod, so that the milling cutter can be quickly displaced, and the center plate can be rotated left and right on the mounting frame, so that the side wall of the cylindrical workpiece can be cut. The three-blade spiral milling cutter can be quickly replaced by disassembling the replacement ring.

[0019] 2. The present invention drives the rack to move by the extension and retraction of the electric push rod, and the movement of the rack drives the steering wheel to rotate, thereby rotating the center plate. The rotation of the center plate can adjust the angle of the three-blade spiral milling cutter fixed on the mounting frame, thereby satisfying the adjustment of different cutting angles of the three-blade spiral milling cutter during cutting. Compared with the existing device, the present invention can cut different types of workpieces such as plates and columns. At the same time, the angle of the three-blade spiral milling cutter can be adjusted to achieve cutting of the workpiece at different angles, and the rotation of the center plate can also enable the three-blade spiral milling cutter to cut the side wall of the columnar workpiece.

[0020] 3. The present invention pushes the pressing rod to make the active wedge block squeeze the driven wedge block. At this time, the driven wedge block drives the conical frame to move downward. When the conical frame moves downward, the squeezing of multiple clamping plates is cancelled. At this time, the clamping plates move out of the clamping grooves on the inner wall of the replacement ring under the action of the spring, and then the replacement ring can be taken out from the mounting frame.

[0021] 4. The present invention drives the rotating ring to rotate by opening the electric slider, and the rotating ring rotates to synchronously drive multiple rotating plates to rotate. The rotating plates rotate and push the protective frame. At this time, the multiple protective frames approach each other until the installed replacement ring is placed. The setting of the protective frame can protect the replacement ring installed on the mounting frame to prevent the replacement ring from loosening when the milling cutter is working.

[0022] 5. When the motor is turned on to drive the milling cutter to work, the present invention simultaneously drives the center rod to rotate. When the center rod rotates, it drives the round rod to rotate through the bevel gear. When the round rod rotates, it simultaneously drives the cam to rotate. When the cam rotates, it drives the piston rod in the air cylinder to be compressed through the pressing frame. Finally, the compressed gas in the air cylinder cools the surface of the milling cutter through the blowing tube, thereby reducing the damage rate of the milling cutter.

[0023] 6. The present invention can spray the coolant in the liquid storage tank onto the surface of the milling cutter by opening the nozzle. On the one hand, it can cool the milling cutter, and on the other hand, it can lubricate the workpiece during cutting to avoid damage to the workpiece during cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the structure between the hydraulic rod and the mobile frame of the present invention;

[0027] Figure 3 It is a schematic diagram of the left structure between the mobile frame and the center plate of the present invention;

[0028] Figure 4 It is a schematic diagram of the right side structure between the mobile frame and the center plate of the present invention;

[0029] Figure 5 It is a schematic diagram of the structure between the replacement ring and the center plate of the present invention when viewed from above;

[0030] Figure 6 It is a schematic diagram of the front cross-section structure of the mounting frame of the present invention;

[0031] Figure 7 It is a schematic diagram of the inner cavity structure of the mounting frame of the present invention;

[0032] Figure 8 It is a schematic diagram of the structure between the side frame and the electric push plate of the present invention;

[0033] Fig. 9 It is a schematic diagram of the structure between the holding ring and the fixing rod of the present invention;

[0034] Fig.10 It is a partial cross-sectional structural schematic diagram of the working box of the present invention;

[0035] Fig.11 It is a schematic diagram of the structure of the replacement ring of the present invention;

[0036] Fig.12 It is a schematic diagram of the structure of a three-edged spiral chip milling cutter on an automatic chip milling machine of the present invention;

[0037] Fig.13 It is a schematic diagram of the structure of the blade head of the present invention.

[0038] The reference numerals in the figures are as follows:

[0039] 1. Operation box; 10. Filter plate; 11. Collection bin; 12. Slide; 21. Hydraulic rod; 22. Connecting frame; 23. Guide rod; 24. Moving frame; 241. Electric push rod; 242. Steering wheel; 25. Center plate; 26. Mounting frame; 260. Replacement ring; 261. Card plate; 262. Conical frame; 263. Driven wedge block; 264. Press rod; 265. Active wedge block; 27. Rotating circle; 271. Rotating plate ; 272, protective frame; 28, center rod; 281, round rod; 282, cam; 283, air cylinder; 284, piston rod; 285, pressing frame; 29, liquid storage tank; 291, nozzle; 31, fixing rod; 32, holding ring; 33, cylinder; 34, arc block; 41, side frame; 42, electric push plate; 43, traction plate; 44, threaded rod; 45, adjustment frame; 46, upper frame; 47, sliding rod; 48, lower frame. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] An automatic milling machine cuts a workpiece by using a tool used in a lathe. The tool used to process the workpiece in the invention is a three-blade spiral milling cutter. The invention processes a columnar or plate-shaped workpiece by using the three-blade spiral milling cutter, and the three-blade spiral milling cutter can be quickly disassembled.

[0042] like Figure 1-Figure 13As shown, it includes a work box 1, and movable grooves are opened on both sides of the work box 1. Filter plates 10 are placed in the movable grooves on both sides, and springs are installed between the filter plates 10 and the movable grooves. Through grooves are opened on the work box 1 on both sides of the filter plate 10, and a collecting bin 11 detachably connected to the work box 1 is arranged outside the through groove, and a slide groove opened outside the work box 1 is arranged above the collecting bin 11. A slide 12 is slidably installed in the slide groove through an electric slider, and a hydraulic rod 21 is fixedly installed on the upper end surface of the slide 12, and a connecting frame 22 is fixedly installed on the top of the hydraulic rod 21. Two guide rods 23 arranged front and back are installed between the connecting frames 22 on both sides, and a movable frame 24 is slidably installed between the two guide rods 23 through an electric slider, a center plate 25 is rotatably installed in the middle of the movable frame 24, and a mounting frame 26 is installed on the lower end surface of the center plate 25 by rotating a motor, and a replacement ring 260 is detachably installed on the outside of the mounting frame 26, and a three-blade spiral milling cutter is detachably installed on the lower end surface of the replacement ring 260.

[0043] When cutting the workpiece, the hydraulic rod 21 is retracted to enable the three-blade spiral milling cutter to press the filter plate 10 to the bottom of the moving groove. At this time, the filter plate 10 is located in the inner cavity of the working box 1. The four walls of the working box 1 block the metal waste generated when the workpiece is cut, effectively avoiding the metal waste splashing when the metal workpiece is cut. In addition, the setting of the collecting bin 11 can collect the metal waste generated when the workpiece on the filter plate 10 is cut. At the same time, the filter plate 2 not only filters the coolant for recycling. It can also automatically separate metal waste and coolant. The slide 12 slides in the slide groove and cooperates with the movable frame 24 to slide on the guide rod 23, so that the milling cutter can be quickly displaced and rotated left and right on the mounting frame 26 through the center plate 25. It can also meet the cutting requirements of the side wall of the cylindrical workpiece. The three-blade spiral milling cutter can be quickly replaced by disassembling the replacement ring 260, which solves the problem that the three-blade spiral milling cutter is damaged during operation and cannot be easily replaced due to the high temperature of the three-blade spiral milling cutter.

[0044] A steering wheel 242 is provided on one side of the center plate 25 and is rotatably connected to the moving frame 24. The circular axis at the center of the steering wheel 242 passes through the moving frame 24 and is fixedly connected to the center plate 25. An electric push rod 241 is provided below the steering wheel 242 and is fixedly connected to the moving frame 24. A rack that engages with the steering wheel 242 is fixedly installed at the telescopic end of the electric push rod 241.

[0045] The motor is turned on to drive the mounting frame 26 to rotate, so that the three-blade spiral milling cutter rotates, thereby cutting the surface of the fixed workpiece, and the rack is moved by the extension and retraction of the electric push rod 241. When the rack moves, it drives the steering wheel 242 to rotate, so that the center plate 25 is rotated. The rotation of the center plate 25 can adjust the angle of the three-blade spiral milling cutter fixed on the mounting frame 26, thereby meeting the adjustment of different cutting angles of the three-blade spiral milling cutter during cutting. Compared with the existing device, the present invention can cut different types of workpieces such as plates and columns. At the same time, the angle of the three-blade spiral milling cutter can be adjusted to achieve cutting of different angles of the workpiece, and the rotation of the center plate 25 can also enable the three-blade spiral milling cutter to cut the side wall of the columnar workpiece, so that the entire milling machine has a wider range of uses.

[0046] A card plate 261 that passes through the mounting frame 26 is slidably installed in the middle part of the mounting frame 26 in an annular direction. The adjacent sides of the multiple card plates 261 are inclined, and a spring is commonly connected between the card plates 261 and the mounting frame 26. A conical frame 262 that passes through and slides on the mounting frame 26 is provided between the multiple card plates 261. The upper part of the conical frame 262 is always in contact with the card plate 261, and a driven wedge block 263 is fixedly installed on the top of the conical frame 262. A pressing rod 264 is slidably installed on one side of the mounting frame 26. The outer sleeve of the pressing rod 264 is provided with a spring, and an active wedge block 265 is fixedly installed on one end of the pressing rod 264 that passes through the mounting frame 26.

[0047] Since the three-blade spiral milling cutter has a high temperature during operation, when the milling cutter is replaced after being damaged, direct contact with the milling cutter may easily cause harm to the staff. Compared with the existing device, the present invention installs the milling cutter on the replacement ring 260, and the milling cutter can be quickly replaced by disassembling the replacement ring 260. The staff does not need to contact the high-temperature milling cutter, thereby avoiding burns to the staff by the high-temperature milling cutter.

[0048] When the replacement ring 260 is disassembled, the pressing rod 264 is pushed to make the active wedge block 265 squeeze the driven wedge block 263. At this time, the driven wedge block 263 drives the conical frame 262 to move downward. When the conical frame 262 moves downward, the squeezing of the multiple clamping plates 261 is cancelled. At this time, the clamping plates 261 are moved out of the grooves on the inner wall of the replacement ring 260 under the action of the spring, and then the replacement ring 260 can be taken out from the mounting frame 26.

[0049] When the replacement ring 260 is installed on the mounting frame 26, after the replacement ring 260 and the mounting frame 26 are aligned with the same axis, the replacement ring 260 is moved upward. When the replacement ring 260 moves upward, the conical frame 262 is simultaneously squeezed upward. After the conical frame 262 moves upward, multiple clamping plates 261 are pushed until the clamping plates 261 move into the clamping grooves on the inner wall of the replacement ring 260, thereby realizing the rapid installation of the replacement ring 260 and the milling cutter.

[0050] A rotating circle 27 is rotatably installed on the lower end surface of the center plate 25 through an electric slider, and a rotating plate 271 is circumferentially installed on the inner side of the rotating circle 27. The rotating plate 271 rotates on one end away from the rotating circle 27 to rotate the protective frame 272. The protective frame 272 is L-shaped and is slidably connected to the center plate 25.

[0051] The electric slider is opened to drive the rotating circle 27 to rotate, and the rotating circle 27 rotates, and the multiple rotating plates 271 are synchronously driven to rotate. The rotating plates 271 rotate and push the protective frame 272. At this time, the multiple protective frames 272 approach each other until the installed replacement ring 260 is placed. The setting of the protective frame 272 can protect the replacement ring 260 installed on the mounting frame 26 to prevent the replacement ring 260 from loosening when the milling cutter is working.

[0052] A center rod 28 that passes through the center plate 25 is fixedly installed in the middle of the upper end surface of the mounting frame 26, a rectangular plate is fixedly installed on one side of the upper end surface of the center plate 25, a round rod 281 is rotatably installed in the middle of the rectangular plate, one end of the round rod 281 and the top of the center rod 28 are fixedly installed with bevel gears that mesh with each other, and a cam 282 is fixedly installed on the other end of the round rod 281, an air cylinder 283 is fixedly installed at one end of the center plate 25, a piston rod 284 is slidably installed in the middle of the air cylinder 283, and an air blowing pipe is provided at the bottom of the air cylinder 283, a pressing frame 285 is rotatably installed on one side of the cam 282, and a cylinder on one side of the pressing frame 285 slides in the piston rod 284.

[0053] When the motor is turned on to drive the milling cutter to work, it also drives the center rod 28 to rotate synchronously. When the center rod 28 rotates, it drives the round rod 281 to rotate through the bevel gear. When the round rod 281 rotates, it also drives the cam 282 to rotate synchronously. When the cam 282 rotates, it drives the piston rod 284 to be compressed in the air cylinder 283 through the pressing frame 285. Finally, the compressed gas in the air cylinder 283 cools the surface of the milling cutter through the blowing tube, thereby reducing the damage rate of the milling cutter.

[0054] A liquid storage tank 29 is fixedly installed on one side of the upper end surface of the center plate 25. The liquid storage tank 29 is used to store coolant. A nozzle 291 rotatably connected to the center plate 25 is provided on one side of the liquid storage tank 29. A connecting pipe is commonly connected between the nozzle 291 and the liquid storage tank 29.

[0055] By opening the nozzle 291, the coolant in the liquid storage tank 29 can be sprayed onto the surface of the milling cutter. On the one hand, it can cool the milling cutter, and on the other hand, it can lubricate the workpiece during cutting to avoid damage to the workpiece during cutting.

[0056] Grooves are provided on both sides of the filter plate 10, and fixing rods 31 are detachably installed in the grooves. Interlaced holding rings 32 are rotatably installed on the tops of the two fixing rods 31, and buckles are alternately provided between the two holding rings 32. Cylinders 33 are fixedly installed in the middle of the two holding rings 32, and arc blocks 34 are fixedly installed at the telescopic ends of the cylinders 33.

[0057] When fixing a cylindrical workpiece before cutting, first install the fixing rods 31 in the grooves on the filter plate 10, then rotate the rings 32 on the fixing rods 31, and when the two rings 32 form a circle, lock the two rings 32 in sequence by buckles, then place the cylindrical workpiece to be cut in the middle of the circle, and then open the cylinder 33 to push forward until the arc blocks 34 on both sides lock the cylindrical workpiece.

[0058] Mounting openings are provided at the four corners of the upper end surface of the working box 1, and side frames 41 are provided on both sides of the upper end surface of the filter plate 10. Electric push plates 42 arranged in an inverted L shape are fixedly installed on both sides of the side frames 41. The end of the electric push plate 42 away from the side frame 41 is placed in the mounting opening, and two traction plates 43 are installed between the two side frames 41.

[0059] A threaded rod 44 is installed on the middle part of the upper side of the side frame 41 through motor rotation, and an L-shaped movable groove is provided below the threaded rod 44 and is opened on the side frame 41. An adjusting frame 45 is threadedly installed on the threaded rod 44, and an upper frame 46 is fixedly installed on one end of the adjusting frame 45. The upper frames 46 are arranged at a right angle, and the four upper frames 46 are all arranged diagonally. A sliding rod 47 is slidably installed on one side of the upper frame 46, and a lower frame 48 is fixedly installed on the bottom of the sliding rod 47. A spring is sleeved on the outside of the sliding rod 47 and the spring is located between the upper frame 46 and the lower frame 48.

[0060] When cutting a plate-shaped workpiece, first place the electric push plate 42 in the installation port at the upper end of the workbox 1, turn on the electric push plate 42 to adjust the distance between the two side frames 41, so that the upper frames 46 and the lower frames 48 on both sides clamp the width of the plate-shaped workpiece, and then turn on the motor to drive the threaded rod 44 to rotate. When the threaded rod 44 rotates, the two upper frames 46 and the lower frames 48 on the side frames 41 clamp the length of the plate-shaped workpiece, finally satisfying the four-corner clamping before cutting the plate-shaped workpiece.

[0061] Since the milling cutter will move the filter plate 10 down to the bottom of the movable groove when cutting the workpiece, the workpiece placed on the filter plate 10 will also move down with the filter plate 10. Through the setting of the slide rod 47 and the lower frame 48, when the filter plate 10 drives the workpiece to move downward, the lower frames 48 at the four corners can keep moving downward synchronously under the action of the slide rod 47 and the spring, so that multiple lower frames 48 always clamp the workpiece.

[0062] The three-blade spiral milling cutter can be detachably installed on the lower end surface of the replacement ring 260. The three-blade spiral milling cutter includes a blade head, which has at least three blades. A tool rod is provided on the upper part of the blade head. The blade head and the tool rod are connected by bolts. The blade head is positioned and connected to the tool rod by a cross-shaped concave-convex groove.

[0063] The tool adopts a replaceable tool head design. The weight of the tool head is much lower than that of a solid tungsten steel tool. It adopts 6-axis powder pressing, with less roughness and a short fine grinding cycle. The overall cost is much lower than that of a solid tungsten steel tool with the same purpose.

[0064] The product has the advantage of milling chip processing accuracy. It adopts a five-axis precision-ground cutter head, and the tool rod connection adopts a cross-convex groove for precise positioning. Its rotary tool jump accuracy and rotary diameter accuracy are much higher than the existing convertible tools on the market.

[0065] The advantage of processing efficiency is that this product uses a finely ground spiral cutting edge with less processing resistance than traditional small-diameter convertible blades. The 8mm diameter tool of this product uses a 3-cutting edge design for more balanced processing force. Compared with traditional convertible tools with small diameters that can only have a single cutting edge, this product can obtain a larger cutting depth and a higher F value.

[0066] When the present invention is in use, firstly, the fixing rod 31 or the electric push plate 42 is selectively installed according to the shape of the workpiece to be processed. When cutting the workpiece, the hydraulic rod 21 is retracted to enable the three-blade spiral milling cutter to press the filter plate 10 to the bottom of the moving groove. At this time, the filter plate 10 is located in the inner cavity of the working box 1. The four walls of the working box 1 block the metal waste generated when the workpiece is cut, effectively avoiding the metal waste generated by the metal workpiece when it is cut. The slide 12 slides in the slide groove and cooperates with the moving frame 24 to slide on the guide rod 23, so that the milling cutter can be quickly displaced, and the center plate 25 is rotated left and right on the mounting frame 26, and the side wall of the cylindrical workpiece can also be cut. The three-blade spiral milling cutter can be quickly replaced by disassembling the replacement ring 260, which solves the problem that the three-blade spiral milling cutter is damaged during operation and cannot be easily replaced due to the high temperature of the three-blade spiral milling cutter.

[0067] The motor is turned on to drive the mounting frame 26 to rotate, so that the three-blade spiral milling cutter rotates, thereby cutting the surface of the fixed workpiece, and the rack is moved by the extension and retraction of the electric push rod 241. When the rack moves, it drives the steering wheel 242 to rotate, so that the center plate 25 is rotated. The angle of the three-blade spiral milling cutter fixed on the mounting frame 26 can be adjusted by the rotation of the center plate 25, thereby meeting the adjustment of different cutting angles when the three-blade spiral milling cutter is cutting. Compared with the existing device, the present invention can cut different types of workpieces such as plates and columns. At the same time, the angle of the three-blade spiral milling cutter can be adjusted to achieve cutting of different angles of the workpiece, and the rotation of the center plate 25 can also make the three-blade spiral milling cutter cut the side wall of the columnar workpiece, so that the use range of the entire milling machine is more extensive;

[0068] Since the three-blade spiral milling cutter has a high temperature during operation, when the milling cutter is replaced after being damaged, direct contact with the milling cutter may easily cause harm to the staff. Compared with the existing device, the present invention installs the milling cutter on the replacement ring 260, and the milling cutter can be quickly replaced by disassembling the replacement ring 260, and the staff does not need to contact the high-temperature milling cutter, thereby avoiding burns to the staff by the high-temperature milling cutter. When disassembling the replacement ring 260, the pressing rod 264 is pushed to make the active wedge block 265 squeeze the driven wedge block 263. At this time, the driven wedge block 263 drives the conical frame 262 to move downward, and the conical frame When the replacement ring 260 is installed on the mounting frame 26, the replacement ring 260 is aligned with the mounting frame 26 and the cone frame 262 is pressed upward. When the replacement ring 260 is moved upward, the cone frame 262 is pressed upward. After the cone frame 262 is moved upward, the multiple clamping plates 261 are pushed until the clamping plates 261 are moved into the clamping grooves on the inner wall of the replacement ring 260, thereby realizing the rapid installation of the replacement ring 260 and the milling cutter.

[0069] The electric slider is turned on to drive the rotating circle 27 to rotate, and when the rotating circle 27 rotates, it synchronously drives the multiple rotating plates 271 to rotate. When the rotating plates 271 rotate, they push the protective frame 272. At this time, the multiple protective frames 272 approach each other until the installed replacement ring 260 is placed. The setting of the protective frame 272 can protect the replacement ring 260 installed on the mounting frame 26 to prevent the replacement ring 260 from loosening when the milling cutter is working. When the motor is turned on to drive the milling cutter to work, it synchronously drives the center rod 28 to rotate. When the center rod 28 rotates, it is driven by the bevel gear The round rod 281 is driven to rotate, and when the round rod 281 rotates, the cam 282 is driven to rotate synchronously. When the cam 282 rotates, the piston rod 284 is driven to be compressed in the air cylinder 283 through the pressing frame 285. Finally, the compressed gas in the air cylinder 283 cools down the surface of the milling cutter through the blowing tube, thereby reducing the damage rate of the milling cutter. When the nozzle 291 is opened, the coolant in the liquid storage tank 29 can be sprayed on the surface of the milling cutter. On the one hand, it can cool the milling cutter, and on the other hand, it can also lubricate the workpiece during cutting to avoid damage to the workpiece during cutting.

[0070] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. An automatic chip milling machine, comprising a working box (1), characterized in that: The working box (1) is provided with movable grooves on both sides, filter plates (10) are placed in the movable grooves on both sides, springs are installed between the filter plates (10) and the movable grooves, through grooves are provided on both sides of the filter plates (10) and are provided on the working box (1), and a collecting bin (11) detachably connected to the working box (1) is provided outside the through grooves, and a sliding groove is provided above the collecting bin (11) and is provided outside the working box (1), and a slide frame (12) is installed in the slide frame via an electric slider, and the upper end surface of the slide frame (12) is fixed. A hydraulic rod (21) is installed, a connecting frame (22) is fixedly installed on the top of the hydraulic rod (21), two guide rods (23) arranged front and back are installed between the connecting frames (22) on both sides, a moving frame (24) is slidably installed between the two guide rods (23) through an electric slider, a center plate (25) is rotatably installed in the middle of the moving frame (24), a mounting frame (26) is rotatably installed on the lower end surface of the center plate (25) through a motor, and a replacement ring (260) is detachably installed on the outside of the mounting frame (26).

2. The automatic chip milling machine according to claim 1, characterized in that: A steering wheel (242) rotatably connected to the moving frame (24) is provided on one side of the center plate (25); a circular shaft at the center of the steering wheel (242) penetrates the moving frame (24) and is fixedly connected to the center plate (25); an electric push rod (241) fixedly connected to the moving frame (24) is provided below the steering wheel (242); a rack meshing with the steering wheel (242) is fixedly mounted on the telescopic end of the electric push rod (241).

3. The automatic chip milling machine according to claim 1, characterized in that: A card plate (261) penetrating the mounting frame (26) is slidably mounted in the middle of the mounting frame (26), a plurality of card plates (261) are close to each other and form an inclined surface, and a spring is commonly connected between the card plates (261) and the mounting frame (26), a conical frame (262) penetrating and sliding on the mounting frame (26) is arranged between the plurality of card plates (261), the upper portion of the conical frame (262) is always in contact with the card plate (261), a driven wedge block (263) is fixedly mounted on the top of the conical frame (262), a pressing rod (264) is slidably mounted on one side of the mounting frame (26), a spring is sleeved on the outside of the pressing rod (264), and an active wedge block (265) is fixedly mounted on one end of the pressing rod (264) penetrating the mounting frame (26).

4. The automatic chip milling machine according to claim 1, characterized in that: A rotating circle (27) is rotatably mounted on the lower end surface of the center plate (25) via an electric slider, a rotating plate (271) is rotatably mounted on the inner side of the rotating circle (27), and a protective frame (272) is rotated at one end of the rotating plate (271) away from the rotating circle (27), the protective frame (272) is L-shaped and is slidably connected to the center plate (25).

5. The automatic chip milling machine according to claim 1, characterized in that: A center rod (28) penetrating the center plate (25) is fixedly mounted on the middle of the upper end surface of the mounting frame (26); a rectangular plate is fixedly mounted on one side of the upper end surface of the center plate (25); a round rod (281) is rotatably mounted on the middle of the rectangular plate; bevel gears meshing with each other are fixedly mounted on one end of the round rod (281) and the top of the center rod (28); a cam (282) is fixedly mounted on the other end of the round rod (281); an air cylinder (283) is fixedly mounted on one end of the center plate (25); a piston rod (284) is slidably mounted on the middle of the air cylinder (283); an air blowing pipe is provided at the bottom of the air cylinder (283); a pressing frame (285) is rotatably mounted on one side of the cam (282); a cylinder on one side of the pressing frame (285) is located in the piston rod (284) and slides.

6. The automatic chip milling machine according to claim 5, characterized in that: A liquid storage tank (29) is fixedly mounted on one side of the upper end surface of the center plate (25). The liquid storage tank (29) is used to store cooling liquid. A nozzle (291) rotatably connected to the center plate (25) is provided on one side of the liquid storage tank (29). A connecting pipe is commonly connected between the nozzle (291) and the liquid storage tank (29).

7. The automatic chip milling machine according to claim 6, characterized in that: The filter plate (10) is provided with grooves on both sides, and fixing rods (31) are detachably installed in the grooves. Interlaced holding rings (32) are rotatably installed on the tops of the two fixing rods (31), and buckles are alternately provided between the two holding rings (32). Cylinders (33) are fixedly installed in the middle of the two holding rings (32), and arc blocks (34) are fixedly installed at the telescopic ends of the cylinders (33).

8. The automatic chip milling machine according to claim 1, characterized in that: The upper end surface of the working box (1) is provided with mounting openings at four corners, and the upper end surface of the filter plate (10) is provided with side frames (41) on both sides, and electric push plates (42) arranged in an inverted L shape are fixedly installed on both sides of the side frames (41), and one end of the electric push plate (42) away from the side frame (41) is placed in the mounting opening, and two traction plates (43) are installed between the two side frames (41).

9. The automatic chip milling machine according to claim 8, characterized in that: A threaded rod (44) is installed on the middle part of the upper side of the side frame (41) through the rotation of a motor, and an L-shaped moving groove is provided below the threaded rod (44) and is opened on the side frame (41). An adjusting frame (45) is installed on the threaded rod (44) through the rotation of a thread, and an upper frame (46) is fixedly installed on one end of the adjusting frame (45). The upper frame (46) is arranged at a right angle, and the four upper frames (46) are all arranged diagonally. A sliding rod (47) is slidably installed on one side of the upper frame (46), and a lower frame (48) is fixedly installed at the bottom of the sliding rod (47). A spring is sleeved on the outside of the sliding rod (47) and the spring is located between the upper frame (46) and the lower frame (48).

10. The three-edge spiral milling cutter of the automatic milling machine according to claim 9, characterized in that: The three-blade spiral milling cutter can be detachably mounted on the lower end surface of the replacement ring (260), and comprises a blade head, the blade head has at least three blades, a tool rod is arranged on the upper part of the blade head, the blade head and the tool rod are connected by bolts, and the blade head is positioned and connected to the tool rod by a cross-shaped concave-convex groove.

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