Layered chip milling cutter and chip milling equipment thereof

Abstract

The invention relates to the technical field of metal processing, in particular to a layered chip milling cutter and chip milling equipment thereof.The chip milling cutter comprises a cutter bar and four blades of regular triangle sheet structures, two first mounting grooves and two second mounting grooves are formed in the bottom end of the cutter bar and are annularly, alternately and evenly distributed, and the two first mounting grooves and the two second mounting grooves are formed in the bottom end of the cutter bar; the four blades are mounted in the corresponding mounting grooves I and the mounting grooves II through locking bolts respectively, so that the cutting edge utilization rate of the chip milling cutter is high, the service life is long, and the cost is low; the chip milling equipment comprises a base, a bearing table directly facing a layered chip milling tool is fixedly arranged at the top of the base, and a clamping mechanism for rapidly and stably clamping metal to be machined is arranged in the bearing table; according to the chip milling equipment, the clamping stability of a to-be-machined workpiece can be greatly improved in the mode that multi-directional clamping and negative pressure suction fixing are matched, multi-directional clamping and negative pressure suction fixing are achieved in one step, and the structural design is ingenious.

Description

Technical Field

[0001] The invention relates to the technical field of metal processing, in particular to a layered chip milling tool and a chip milling device thereof. Background Art

[0002] A milling cutter is a rotating tool with one or more teeth used for milling. When working, each tooth cuts off the excess of the workpiece intermittently in sequence. It is mainly used for processing planes, steps, grooves, forming surfaces and cutting off workpieces on milling machines.

[0003] The prior art discloses a Chinese patent with publication number CN 102756400 A: a wood chip forming milling device, and discloses a second slide and a clamp for clamping the upper end surface and the lower end surface of the wood chip to be processed. The wood chip is clamped by a clamping part formed by cantilevers extending from the upper half and the lower half of the clamp, and the wood chip is clamped by the extension and contraction of an inverted clamping cylinder.

[0004] However, the above-mentioned prior art still has certain defects, that is, during use, it is necessary to actively clamp the workpiece to be processed by means of the extension and contraction of the clamping cylinder, which generates energy consumption and requires irregular operation and maintenance of the clamping power source, which is inconvenient to use. Summary of the invention

[0005] The object of the present invention is to provide a layered milling tool and a milling device 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] A layered milling tool, comprising a tool bar and four blades, wherein the bottom end of the tool bar is provided with two first mounting grooves and two second mounting grooves, the first mounting grooves and the second mounting grooves are evenly distributed alternately in a ring shape, and the four blades are respectively installed in the corresponding first mounting grooves and the second mounting grooves through locking bolts;

[0008] The four blades are all arranged in a regular triangular sheet structure, and the four blades are all designed with a large arc with an 11° back angle, a 0° edge angle and a 15° front angle, and the cutting edges are sharp.

[0009] A layered milling device, which uses the above-mentioned layered milling tool for processing, comprises a base, a cross column is fixedly provided on the top of the base, a lifting platform is movably sleeved on the cross column, a hydraulic cylinder for driving the lifting platform to lift is fixedly installed on the outer side of the cross column, a slide seat and a feeding member for driving the slide seat to feed are installed at the bottom of the lifting platform, a driving motor is fixedly installed at the bottom of the slide seat, a shaft rod is fixedly connected to the end of the output shaft of the driving motor, and a tool rod is detachably installed at the end of the shaft rod;

[0010] A bearing platform facing the layered milling cutter is fixedly arranged on the top of the base, and a clamping mechanism for quickly and stably clamping the metal to be processed is arranged inside the bearing platform.

[0011] In a preferred embodiment, the support platform includes a seat frame fixed on the top of the base, a seat block is fixedly provided in the middle of the bottom of the inner cavity of the seat frame, a support frame is fixedly provided in the middle of the top of the seat block, slots are provided at the bottom ends of both sides of the support frame, and the clamping mechanism is installed on the inner side of the support frame.

[0012] In a preferred embodiment, the clamping mechanism includes a ring plate, four groups of square bars are fixedly connected between the outer side of the ring plate and the inner side of the support frame, two in each group, a lifting cylinder is provided in the form of a through-type movable sleeve inside the ring plate, a sealing gasket is fixedly provided on the top surface of the lifting cylinder, and an air hole is penetrated through the top surface of the lifting cylinder at a position inside the sealing gasket, a piston disk is provided in the movable sleeve inside the lifting cylinder, and a spring 2 is fixedly connected between the piston disk and the top surface of the inner side of the lifting cylinder.

[0013] In a preferred embodiment, the clamping mechanism further comprises a through slot extending through the middle of the four sides of the support frame and a support seat fixed on the outer side of the lifting cylinder and arranged corresponding to the through slot, a top bar is movably provided inside each through slot, a dial plate is hingedly installed at the end of each support seat, a core shaft is fixedly provided between the two square bars of each group, a slot is extended through one side of each dial plate, and the core shaft is movably provided inside the corresponding slot;

[0014] Each of the shift plates has sliders fixed on both sides of one end away from the corresponding bracket, and four top strips are provided with grooves on one end extending to the inside of the bracket frame, and slide grooves are provided on both sides of the inner cavity of the groove. The end of the shift plate extends into the corresponding groove, and the sliders on both sides of the end of the shift plate are respectively slidably connected to the corresponding slide groove.

[0015] In a preferred embodiment, a negative pressure generating assembly is provided between the piston disc and two of the oppositely arranged shifting plates, the negative pressure generating assembly includes a through groove opened on the outer side of the shifting plate and connected to the corresponding strip groove, a ring block is provided on the outer movable sleeve of the core shaft corresponding to the through groove, ear seats are fixedly provided on the bottom end surface of the piston disc and the outer side of the ring block, guide wheels are installed at the positions corresponding to the two through grooves at the bottom of the lifting cylinder, and a pull rope wound around the corresponding guide wheel is fixedly connected between the two correspondingly arranged ear seats;

[0016] Vertical rods are fixedly provided at positions corresponding to two oppositely arranged brackets on the outside of the lifting cylinder. The bottom ends of the vertical rods are movable through the ring plate and the corresponding brackets in turn. A spring three is sleeved on the outside of the vertical rods to fix the ring plate and the corresponding brackets.

[0017] In a preferred embodiment, a sealing plate is hingedly mounted on the outer side of the seat frame, a filter plate arranged obliquely is fixedly mounted on the inner side of the sealing plate, a transition strip is fixedly mounted on the outer side of the seat block at a position corresponding to the sealing plate, and a side of the transition strip facing the corresponding sealing plate is arranged as a curved surface structure;

[0018] A transition pipe is fixedly arranged inside the seat frame, a plurality of nozzles are installed outside the transition pipe, a pipeline connecting the transition pipe and the inner cavity of the seat frame is arranged outside the seat frame, and a pump is installed at the liquid inlet end of the pipeline.

[0019] In a preferred embodiment, a stop assembly is provided between the seat frame and the sealing plate, and the stop assembly includes a round rod fixed to the outside of the seat frame and an L-shaped clip fixed to the outside of the sealing plate, and a swing bar is rotatably mounted on the outside of the round rod.

[0020] In a preferred embodiment, a connection mechanism is provided between the knife rod and the shaft rod, the connection mechanism comprising a threaded column fixedly connected to the bottom end of the shaft rod and a threaded sleeve threadedly sleeved on the outside of the threaded column, a disc is fixedly connected to the bottom end of the threaded column, two square grooves 1 and two square grooves 2 are provided on the outside of the disc, and the colinearly arranged square grooves 1 and 2 are connected at opposite ends thereof;

[0021] The connecting mechanism also includes two arc plates arranged opposite to each other, square columns are fixedly provided on the inner sides of the two arc plates, and limiting blocks are fixedly connected to the ends of the square columns. The two square columns are movably inserted into the corresponding square grooves 1, and the two limiting blocks are respectively slidably connected to the corresponding square grooves 2. Insert blocks are also provided on the inner sides of the two arc plates, and slots matching the insert blocks are provided on the outer sides of the tool rod. A limiting component for preventing the threaded sleeve from dislocating is provided between the arc plates and the shaft rod.

[0022] In a preferred embodiment, the limiting assembly includes two guide pillars fixed on the outside of the shaft and arc strips fixed on the outside of two arc plates. The outsides of the two guide pillars are movably sleeved with L-shaped clamps, and the outsides of the two guide pillars are sleeved with springs that fixedly connect the shaft and the corresponding clamps.

[0023] Beneficial effects of the present invention:

[0024] 1. The staggered layered installation of the four blades of the present invention enables different blades to contact the processing surface at different positions during the milling process, which can effectively reduce the wear of the blades. At the same time, a higher feed F value and a larger feed angle in the area can be obtained. In addition, a single blade can be replaced six times, which greatly improves the effective utilization rate of the blade edge and increases the service life of the blade, thereby achieving the purpose of reducing the cost of using the processing tool;

[0025] 2. The present invention utilizes the gravity of the workpiece to be processed to press down the lifting cylinder, thereby realizing multi-directional clamping and negative pressure suction in one step, without the need for external power supply. The structural design is ingenious, and the combination of multi-directional clamping and negative pressure suction can greatly improve the clamping stability of the workpiece to be processed;

[0026] 3. The present invention uses a threaded sleeve threadedly connected to the outside of the threaded column to cover the two arc plates that hold the tool rod, and uses a limit assembly to clamp the upper and lower ends of the threaded sleeve when the tool rod is installed, which can effectively prevent the tool from loosening during the milling process, and the tool can be disassembled and assembled conveniently and quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] 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.

[0028] Figure 1 This is a schematic diagram of the overall structure of the milling tool of the present invention from a first viewing angle;

[0029] Figure 2 is a schematic diagram of the overall structure of the milling tool of the present invention from a second viewing angle;

[0030] Figure 3 It is a schematic diagram of the blade structure of the milling tool of the present invention;

[0031] Figure 4 It is a schematic diagram of the wear of the second and fourth blades during the use of the milling tool of the present invention;

[0032] Figure 5 It is a schematic diagram of the wear of the first and third blades during the use of the milling tool of the present invention;

[0033] Figure 6 It is an overall schematic diagram of the chip milling device of the present invention;

[0034] Figure 7 It is an overall cross-sectional schematic diagram of the chip milling device of the present invention;

[0035] Figure 8 It is a partial structural schematic diagram of the chip milling equipment of the present invention;

[0036] Fig. 9 The present invention Figure 8 Overall top view schematic diagram;

[0037] Fig.10 The present invention Fig. 9 Schematic diagram of the AA section structure;

[0038] Fig.11 The present invention Fig. 9 Schematic diagram of the cross-section structure along the BB axis;

[0039] Fig.12 It is a schematic diagram of the structure of the clamping mechanism of the milling device of the present invention;

[0040] Fig.13 It is an overall schematic diagram of the butt joint between the cutter bar and the shaft bar of the chip milling device of the present invention;

[0041] Fig.14 The present invention Fig.13 The expanded diagram in .

[0042] The reference numerals in the figure are as follows: 1, knife bar; 2, mounting groove 1; 3, mounting groove 2; 4, blade; 5, connecting mechanism; 51, threaded column; 52, threaded sleeve; 53, limit assembly; 531, guide column; 532, chuck; 533, spring 1; 534, arc bar; 54, disc; 55, slot; 56, arc plate; 57, plug block; 58, square column; 59, limit block; 510, square groove 1; 511, square groove 2; 6, bearing platform; 61, seat frame; 62, seat block; 63, support frame; 64, notch; 7, clamping mechanism; 71, ring plate; 72, square bar; 73, lifting cylinder; 74, air hole; 75. Sealing gasket; 76. Piston disc; 77. Spring 2; 78. Ear seat; 79. Guide wheel; 710. Pull rope; 711. Support seat; 712. Plate; 713. Mandrel; 714. Sink; 715. Strip groove; 716. Vertical rod; 717. Spring 3; 718. Top strip; 719. Through groove; 8. Base; 9. Cross column; 10. Lifting platform; 11. Hydraulic cylinder; 12. Slide; 13. Feed piece; 14. Shaft; 15. L-shaped clip; 16. Pipeline; 17. Transition pipe; 18. Nozzle; 19. Closing plate; 20. Filter plate; 21. Round rod; 22. Swing bar; 23. Transition bar. DETAILED DESCRIPTION

[0043] 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.

[0044] The layered milling tool of the present invention belongs to a type of tool used for metal milling processing and is used for rough milling processing of mold-type component cavities, deep step rapid rough milling processing, etc.

[0045] The layered chip milling device of the present invention belongs to a type of metal processing equipment, is a part of a turning processing equipment, and is used for milling the surface of a metal workpiece.

[0046] Refer to the instruction manual Figure 1-Figure 5 The present invention provides a layered milling tool, including a tool bar 1 and four blades 4. The bottom end of the tool bar 1 is provided with two mounting grooves 1 2 and two mounting grooves 2 3. The mounting grooves 1 2 and the mounting grooves 2 3 are evenly distributed alternately in a ring shape. The four blades 4 are respectively installed in the corresponding mounting grooves 1 2 and the mounting grooves 2 3 through locking bolts.

[0047] The four blades 4 are all arranged in a regular triangular sheet structure, and the four blades 4 are all designed with a large arc with an 11° back angle (i.e., the angle between the cutting edge of the blade 4 and the machined surface of the workpiece), a 0° edge angle (several angles of the cutting edge of the blade 4) and a 15° (the angle between the cutting edge of the blade 4 and the machined surface of the workpiece) front angle design, and the cutting edge is sharp. In the process of installing the blade 4, the blades 4 installed in the two mounting grooves 23 are respectively No. 1 and No. 3, so that the blade 4 faces the outer bottom angle with the sharp angle, and the blades 4 installed in the two mounting grooves 12 are respectively No. 2 and No. 4, so that the large arc edge of the blade 4 faces the bottom surface and is installed protruding 0.2 from the bottom surface, so that the four blades 4 are installed in a staggered and layered manner, so that different positions of different blades 4 will contact the machined surface during the milling process, which can effectively reduce the wear of the blade 4. At the same time, a higher feed F value and a larger feed angle in the area can be obtained during the processing.

[0048] It should be noted that the unique installation method of the four blades 4 in the present invention allows the three corners of the first and third blades 4 and the three arc edges of the second and fourth blades 4 to be used alternately. At the same time, after the three corners of the first and third blades 4 and the three arc edges of the second and fourth blades 4 are used, the first and third blades 4 can be replaced with the second and fourth blades 4 to obtain three new use angles and arc edges. In this way, six replacements of a single blade 4 can be achieved, which greatly improves the effective use rate of the cutting edge of the blade 4, increases the service life of the blade 4, and achieves the purpose of reducing the cost of using processing tools.

[0049] Example 1: Refer to the attached specification Figure 6-Figure 7The present invention provides a layered milling device, which uses the above-mentioned layered milling tool for processing. The layered milling device includes a base 8, a cross column 9 is fixedly provided on the top of the base 8, a lifting platform 10 is movably sleeved on the cross column 9, a hydraulic cylinder 11 for driving the lifting platform 10 to lift is fixedly installed on the outer side of the cross column 9, a slide 12 and a feeding member 13 for driving the slide 12 to feed are installed at the bottom of the lifting platform 10, a driving motor is fixedly installed at the bottom of the slide 12, and a shaft 14 is fixedly connected to the end of the output shaft of the driving motor, and the tool rod 1 is detachably installed at the end of the shaft 14, wherein the feeding member 13 adopts a feeding component in the prior art that drives the milling tool to perform multi-directional movement in the horizontal direction, which will not be described in detail here;

[0050] A support platform 6 facing the layered milling cutter is fixedly provided on the top of the base 8, and a clamping mechanism 7 for quickly and stably clamping the metal to be processed is provided inside the support platform 6.

[0051] It should be noted that the milling equipment of the present invention uses a clamping mechanism 7 to fix the workpiece to be processed inside the support platform 6, and uses the feeding member 13 and the hydraulic cylinder 11 to allow the high-speed rotating tool to perform rough milling on the surface of the workpiece to be processed.

[0052] Specifically, Figure 7-Figure 8 As shown, the support platform 6 includes a seat frame 61 fixed on the top of the base 8, a seat block 62 is fixedly provided at the middle of the bottom of the inner cavity of the seat frame 61, a support frame 63 is fixedly provided at the middle of the top of the seat block 62, and slots 64 are provided at the bottom ends of both sides of the support frame 63. The clamping mechanism 7 is installed on the inner side of the support frame 63, wherein the upper end surface of the support frame 63 is lower than the upper end surface of the seat frame 61, so that the clamped workpiece sinks into the seat frame 61, and the seat frame 61 is used to block the waste chips generated during the milling process. In addition, the upper end surface of the seat block 62 is set as an arc surface, which can guide the waste chips falling on it to slide to both sides.

[0053] It should be noted that the milling process of the present invention adopts a sinking process, which can effectively prevent waste chips from splashing during the processing and facilitate the subsequent cleaning of the waste chips.

[0054] Specifically, Figure 8-Figure 12As shown, the clamping mechanism 7 includes a ring plate 71, and four groups of square bars 72 are fixedly connected between the outer side of the ring plate 71 and the inner side of the supporting frame 63, each group of two, and a lifting cylinder 73 is provided in the ring plate 71 in a through-type movable sleeve. A sealing gasket 75 is fixedly provided on the top surface of the lifting cylinder 73, and an air hole 74 is penetrated and opened at the position of the top surface of the lifting cylinder 73 located inside the sealing gasket 75. A piston disk 76 is movably provided inside the lifting cylinder 73, and a spring 2 77 is fixedly connected between the piston disk 76 and the top surface of the inner side of the lifting cylinder 73. The setting of the sealing gasket 75 can form a closed cavity between the workpiece and the inner side of the sealing gasket 75 after the lifting cylinder 73 is pressed down, so that the cavity volume between the piston disk 76 moving downward and the workpiece is increased, and a negative pressure space is obtained (the negative pressure space is the pressure in the cavity between the piston disk 76 and the workpiece before the lifting cylinder 73 is not pressed down);

[0055] The clamping mechanism 7 also includes a through slot that runs through the middle of the four sides of the support frame 63 and a bracket 711 fixed on the outer side of the lifting cylinder 73 and arranged corresponding to the through slot. A top strip 718 is movably penetrated inside each through slot, wherein the upper end surface of the top strip 718 is set as an arc surface, which can reduce the accumulation of waste chips thereon. Furthermore, a cleaning brush strip can be added at the position corresponding to each through slot on the inner and outer sides of the support frame 63 to clean the waste chips remaining on the surface of the top strip 718 entering the corresponding through slot area, so as to avoid long-term blocking of the through slot and causing wear on the surface of the top strip 718 during movement. A dial plate 712 is hingedly installed at the end of each bracket 711, and a core shaft 713 is fixedly provided between the two square bars 72 of each group. A strip groove 715 is penetrated on one side of each dial plate 712, and the core shaft 713 is movably penetrated inside the corresponding strip groove 715.

[0056] Slide blocks are fixedly provided on both sides of one end of each pick plate 712 away from the corresponding bracket 711, and a sink groove 714 is provided on one end of the four top bars 718 extending to the inside of the bracket frame 63. The setting of the sink groove 714 can ensure that the pick plate 712 will not hinder the clamping action of the corresponding top bar 718 when the top bar 718 is used to press the workpiece to be processed. Slide grooves are provided on both sides of the inner cavity of the sink groove 714, and the end of the pick plate 712 extends into the corresponding sink groove 714. The slide blocks on both sides of the end of the pick plate 712 are respectively slidably connected to the inside of the corresponding slide groove, which is used to limit the top bar 718 so that it will not fall out of the corresponding through groove when not in use.

[0057] A negative pressure generating assembly is provided between the piston disc 76 and two of the oppositely arranged dial plates 712. The negative pressure generating assembly includes a through groove 719 provided on the outer side of the dial plate 712 and connected to the corresponding strip groove 715. A ring block is movably sleeved on the outer side of the core shaft 713 corresponding to the through groove 719. Ear seats 78 are fixedly provided on the bottom end surface of the piston disc 76 and the outer side of the ring block. The ear seats 78 connected to the outer side of the ring block are in a state of movably penetrating the corresponding through groove 719, so that the ring block will not move axially along the core shaft 713. Guide wheels 79 are installed at the positions corresponding to the two through grooves 719 at the bottom of the lifting cylinder 73. A pull rope 710 wound around the corresponding guide wheel 79 is fixedly connected between the two corresponding ear seats 78.

[0058] Vertical rods 716 are fixedly arranged at the positions of two oppositely arranged brackets 711 on the outside of the lifting cylinder 73, and the bottom ends of the vertical rods 716 are movably penetrated through the ring plate 71 and the corresponding brackets 711 in sequence. A spring 3 717 is sleeved on the outside of the vertical rods 716 to fix the ring plate 71 and the corresponding brackets 711. In the process of deformation of the spring 3 717, the bottom end of the vertical rod 716 always keeps the state of sequentially penetrating the ring plate 71 and the corresponding brackets 711, and the setting of the elastic component can ensure that the lifting cylinder 73 will not show such a state in the natural state. Fig.11 The state of contact with the ring plate 71 shown further affects the placement of the workpiece to be processed.

[0059] When the workpiece is clamped, the workpiece will be pressed downward by its own pressure after the workpiece is placed on the top of the lifting cylinder 73. During this period, as the lifting cylinder 73 moves downward passively, the spring three 717 will be gradually stretched. At the same time, the downward movement of the lifting cylinder 73 will synchronously drive the ear seat 78 to move downward. In this process, since the pick plate 712 is restricted by the core shaft 713 penetrated by the corresponding position inside the strip groove 715, the lifting cylinder 73 moves downward and drives the pick plate 712 to move downward. At the same time, it also drives the end of the pick plate 712 away from the corresponding ear seat 78 to deflect upward, so that the deflected pick plate 712 is used to drive the top strip 718 at the corresponding position to move along the through slot at the position to the direction of the workpiece, so that the four top strips 718 moving in opposite directions are used to clamp the workpiece to be processed, thereby completing the automatic clamping action of the workpiece to be processed.

[0060] Furthermore, during the downward movement of the lifting cylinder 73, since one end of the pull rope 710 is fixed on the ear seat 78 on the ring block, when the lifting cylinder 73 moves downward, it will synchronously drive the guide wheel 79 to move downward, so that the other end of the pull rope 710 will pull the piston plate 76 to move downward and stretch the spring 2 77, so that the volume of the cavity formed between the piston plate 76 and the workpiece when the workpiece initially contacts the lifting cylinder 73 becomes larger, and a negative pressure space is obtained (the negative pressure space is the pressure in the cavity between the piston plate 76 and the workpiece before the lifting cylinder 73 is not pressed down), so that the workpiece is firmly adsorbed on the top surface of the lifting cylinder 73;

[0061] On the contrary, after the processing is completed, as the workpiece is gradually lifted upward, the negative pressure space will gradually return to normal, releasing the negative pressure fixation state of the workpiece. At the same time, the plurality of top bars 718 will also move away from the workpiece while the corresponding paddle 712 is deflected, releasing the clamping state of the workpiece.

[0062] The clamping mechanism 7 adopts a multi-directional clamping and negative pressure solid suction mode to greatly improve the clamping stability of the workpiece to be processed, and the structural design is ingenious.

[0063] Specifically, Figure 7-Figure 8 As shown, a sealing plate 19 is hingedly mounted on the outer side of the seat frame 61, and a filter plate 20 arranged in an inclined manner is fixedly arranged on the inner side of the sealing plate 19. A transition strip 23 is fixedly arranged on the outer side of the seat block 62 at a position corresponding to the sealing plate 19, and a side of the transition strip 23 facing the corresponding sealing plate 19 is arranged as a curved surface structure. When the sealing plate 19 is in a position as shown in FIG. Figure 6 In the closed state shown, the end of the filter plate 20 is hidden inside the arc surface structure on the transition strip 23, which can ensure that the waste debris sliding along the arc surface on the seat block 62 will not fall into the gap between the end of the filter plate 20 and the seat block 62, and the arc surface structure fits the partial motion trajectory of the filter plate 20 when it deflects synchronously with the sealing plate 19;

[0064] A transition pipe 17 is fixedly arranged inside the seat frame 61, and a plurality of nozzles 18 are installed outside the transition pipe 17, wherein the water spraying direction of the nozzles 18 is toward the area between the contact surfaces of the tool and the workpiece, which can not only achieve the purpose of cooling the workpiece and the tool, but also can use the sprayed water flow to a certain extent to prevent waste chips from splashing upwards. A pipe 16 connecting the transition pipe 17 and the inner cavity of the seat frame 61 is arranged outside the seat frame 61, and a pump is installed at the liquid inlet end of the pipe 16;

[0065] The stop assembly between the seat frame 61 and the sealing plate 19 includes a round rod 21 fixed to the outside of the seat frame 61 and an L-shaped clamping strip 15 fixed to the outside of the sealing plate 19 , and a swing bar 22 is rotatably mounted on the outside of the round rod 21 .

[0066] It should be noted that, in the process of milling the clamped workpiece, most of the sprayed coolant and splashed waste chips will fall onto the top of the filter plate 20, and a small part will fall on the curved area on the seat block 62, and then slide onto the filter plate 20. The filter plate 20 can be used to separate the coolant from the waste chips to achieve the recycling of the coolant. After the processing is completed, the waste chips trapped on the filter plate 20 are moved by moving the swing bar 22 out of the area where the L-shaped card bar 15 is located, releasing the locking state of the sealing plate 19, and then pulling the sealing plate 19 to drive the filter plate 20 to reverse, so that the waste chips roll out of the seat frame 61, and some of the waste chips remaining on the filter plate 20 can be cleaned with the help of a cleaning brush.

[0067] Example 2: Refer to the attached specification Figure 13-14 The present invention also provides a layered milling device, wherein a connection mechanism 5 is provided between the cutter bar 1 and the shaft bar 14, the connection mechanism 5 comprises a threaded column 51 fixedly connected to the bottom end of the shaft bar 14 and a threaded sleeve 52 threadedly sleeved on the outside of the threaded column 51, a disc 54 is fixedly connected to the bottom end of the threaded column 51, two square grooves 1 510 and two square grooves 2 511 are provided on the outside of the disc 54, and the square grooves 1 510 and 511 are arranged in a colinear manner and are connected at opposite ends thereof;

[0068] The connecting mechanism 5 also includes two arc plates 56 arranged opposite to each other, square columns 58 are fixedly provided on the inner sides of the two arc plates 56, and limiting blocks 59 are fixedly connected to the ends of the square columns 58. The two square columns 58 are movably arranged in the corresponding square grooves 1 510, and the two limiting blocks 59 are respectively slidably connected to the corresponding square grooves 2 511, wherein the length of the square column 58 is greater than the length of the corresponding square groove 1 510, and the sum of the lengths of the square column 58 and the corresponding limiting blocks 59 is less than the length of the square grooves 1 510 and 2 at the position. 511, and the setting of the limiting block 59 can prevent the corresponding square column 58 from completely disengaging from the square groove 510 at its position. An insert block 57 is also provided on the inner side of the two arc plates 56, and a slot 55 adapted to the insert block 57 is provided on the outer side of the knife rod 1, wherein the insert block 57 and the upper and lower sides of the slot 55 are both arranged in a flared structure, which is convenient for the quick alignment and plug-in between the insert block 57 and the corresponding slot 55, and a limit assembly 53 for preventing the threaded sleeve 52 from being dislocated is provided between the arc plate 56 and the shaft rod 14.

[0069] It should be noted that, in the process of installing the aforementioned layered milling tool, the threaded sleeve 52 is turned to move it toward the direction of the shaft 14 until the restriction between the two arc plates 56 is completely released, and then the two arc plates 56 are pulled to move away from each other and open, and then the area where the slot 55 on the tool rod 1 is located is placed between the two arc plates 56, and then the two arc plates 56 are moved toward each other until they are in contact with the outer side of the tool rod 1, and then the threaded sleeve 52 is turned to move it downward to cover the closed arc plate 56, and finally the position of the threaded sleeve 52 is limited by the limit assembly 53 to prevent the tool from loosening during the milling process.

[0070] Specifically, Fig.14 As shown, the limit assembly 53 includes two guide columns 531 fixed on the outside of the shaft 14 and an arc strip 534 fixed on the outside of the two arc plates 56, and the outsides of the two guide columns 531 are movably sleeved with an L-shaped clamp 532, and the outsides of the two guide columns 531 are sleeved with a spring 533 fixedly connecting the shaft 14 and the corresponding clamp 532, wherein the distance between the opposite ends of the two guide columns 531 is smaller than the inner diameter of the threaded sleeve 52, and when the spring 533 is in a natural state, the maximum distance between the two L-shaped clamps 532 is greater than the inner diameter of the threaded sleeve 52.

[0071] It should be noted that the distance between the upper end surface of the arc strip 534 and the lower end surface of the L-shaped structure of the clamping head 532 is equal to the height of the threaded sleeve 52. In the process of limiting the upper and lower ends of the threaded sleeve 52 by using the limiting assembly 53, after the arc plate 56 clamps the tool rod 1, the threaded sleeve 52 is twisted to make its lower end move downward to a state where it is in contact with the arc strip 534 on the arc plate 56. At this time, the clamping head loses the obstruction of the threaded sleeve 52 and is reset under the action of the restoring force of the spring 533, so that the upper end surface of the threaded sleeve 52 is stopped by the opposite ends of the two L-shaped structure clamping heads 532 after the reset, thereby completing the limiting of the threaded sleeve 52.

[0072] In the above technical scheme, the hydraulic cylinder 11 mentioned adopts the HSG series hydraulic cylinder, and the specific model is selected according to actual production needs; the drive motor mentioned adopts the A-type motor, and the specific model is selected according to actual production; the pump mentioned adopts the coolant circulation pump of model DL-1020.

[0073] 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. A layered milling tool, comprising a tool bar (1) and four blades (4), characterized in that: The bottom end of the knife rod (1) is provided with two mounting grooves 1 (2) and two mounting grooves 2 (3), the mounting grooves 1 (2) and the mounting grooves 2 (3) are evenly and alternately distributed in a ring shape, and the four blades (4) are respectively installed in the corresponding mounting grooves 1 (2) and the mounting grooves 2 (3) by means of locking bolts; The four blades (4) are all arranged in a regular triangular sheet structure, and the four blades (4) are all designed with a large arc, an 11° back angle, a 0° edge angle and a 15° front angle, and the cutting edges are sharp.

2. A layered milling device, which is processed by using the layered milling tool as claimed in claim 1, and the layered milling device comprises a base (8), a cross column (9) is fixedly provided on the top of the base (8), a lifting platform (10) is movably sleeved on the cross column (9), a hydraulic cylinder (11) for driving the lifting platform (10) to lift is fixedly installed on the outer side of the cross column (9), a slide seat (12) and a feeding member (13) for driving the slide seat (12) to feed are installed at the bottom of the lifting platform (10), characterized in that: A driving motor is fixedly mounted on the bottom of the slide seat (12); the end of the output shaft of the driving motor is fixedly connected to a shaft rod (14); and the knife rod (1) is detachably mounted on the end of the shaft rod (14); A support platform (6) facing the layered milling cutter is fixedly provided on the top of the base (8), and a clamping mechanism (7) for quickly and stably clamping the metal to be processed is provided inside the support platform (6).

3. A layered milling device according to claim 2, characterized in that: The support platform (6) comprises a seat frame (61) fixed on the top of the base (8), a seat block (62) is fixedly provided in the middle of the bottom of the inner cavity of the seat frame (61), a support frame (63) is fixedly provided in the middle of the top of the seat block (62), notches (64) are provided at the bottom ends of both sides of the support frame (63), and the clamping mechanism (7) is installed on the inner side of the support frame (63).

4. A layered milling device according to claim 3, characterized in that: The clamping mechanism (7) comprises a ring plate (71), four groups of square bars (72) are fixedly connected between the outer side of the ring plate (71) and the inner side of the support frame (63), two in each group, a lifting cylinder (73) is provided in the ring plate (71) in a through-type movable sleeve, a sealing gasket (75) is fixedly provided on the top surface of the lifting cylinder (73), and an air hole (74) is provided through the top surface of the lifting cylinder (73) at a position inside the sealing gasket (75), a piston disk (76) is provided in the lifting cylinder (73) in a movable sleeve, and a second spring (77) is fixedly connected between the piston disk (76) and the inner top surface of the lifting cylinder (73).

5. A layered milling device according to claim 4, characterized in that: The clamping mechanism (7) further comprises a through slot extending through the middle of the four sides of the support frame (63) and a support seat (711) fixed on the outer side of the lifting cylinder (73) and arranged corresponding to the through slot, a top bar (718) is movably provided inside each through slot, a shift plate (712) is hingedly installed at the end of each support seat (711), a core shaft (713) is fixedly provided between the two square bars (72) of each group, a bar groove (715) is provided through one side of each shift plate (712), and the core shaft (713) is movably provided inside the corresponding bar groove (715); Each of the paddle plates (712) has sliders fixedly disposed on both sides of one end away from the corresponding bracket (711); one end of the four top bars (718) extending to the inside of the bracket frame (63) is provided with a sink groove (714); both sides of the inner cavity of the sink groove (714) are provided with slide grooves; the end of the paddle plate (712) extends to the inside of the corresponding sink groove (714), and the sliders on both sides of the end of the paddle plate (712) are slidably connected to the inside of the corresponding slide groove.

6. A layered milling device according to claim 5, characterized in that: A negative pressure generating assembly is provided between the piston disc (76) and two of the oppositely arranged shifting plates (712), the negative pressure generating assembly comprising a through groove (719) provided on the outer side of the shifting plate (712) and communicating with the corresponding strip groove (715), a ring block is movably sleeved on the outer side of the core shaft (713) corresponding to the through groove (719), an ear seat (78) is fixedly provided on the bottom end surface of the piston disc (76) and the outer side of the ring block, guide wheels (79) are installed at positions corresponding to the two through grooves (719) at the bottom of the lifting cylinder (73), and a pull rope (710) wound around the corresponding guide wheel (79) is fixedly connected between the two correspondingly arranged ear seats (78); Vertical rods (716) are fixedly provided at positions corresponding to two of the brackets (711) arranged opposite to each other on the outside of the lifting cylinder (73); the bottom ends of the vertical rods (716) are movably inserted through the ring plate (71) and the corresponding brackets (711) in sequence; and springs (717) are sleeved on the outside of the vertical rods (716) for fixedly connecting the ring plate (71) and the corresponding brackets (711).

7. The layered milling device according to claim 3, characterized in that: A sealing plate (19) is hingedly mounted on the outer side of the seat frame (61), a filter plate (20) arranged in an inclined manner is fixedly arranged on the inner side of the sealing plate (19), a transition strip (23) is fixedly arranged on the outer side of the seat block (62) at a position corresponding to the sealing plate (19), and a side of the transition strip (23) facing the corresponding sealing plate (19) is arranged as a curved surface structure; A transition pipe (17) is fixedly arranged on the inner side of the seat frame (61), a plurality of nozzles (18) are installed on the outer side of the transition pipe (17), a pipe (16) connecting the transition pipe (17) and the inner cavity of the seat frame (61) is arranged on the outer side of the seat frame (61), and a pump is installed at the liquid inlet end of the pipe (16).

8. The layered milling device according to claim 7, characterized in that: A stopper assembly is provided between the seat frame (61) and the sealing plate (19), the stopper assembly comprising a round rod (21) fixed on the outside of the seat frame (61) and an L-shaped clamping strip (15) fixed on the outside of the sealing plate (19), and a swing bar (22) is rotatably mounted on the outside of the round rod (21).

9. The layered milling device according to claim 2, characterized in that: A connecting mechanism (5) is provided between the knife rod (1) and the shaft rod (14), the connecting mechanism (5) comprising a threaded column (51) fixedly connected to the bottom end of the shaft rod (14) and a threaded sleeve (52) threadedly sleeved on the outside of the threaded column (51), a circular disc (54) is fixedly connected to the bottom end of the threaded column (51), two square grooves 1 (510) and two square grooves 2 (511) are provided on the outside of the circular disc (54), and the opposite ends of the square grooves 1 (510) and 2 (511) arranged in a colinear manner are connected; The connecting mechanism (5) also includes two arc plates (56) arranged opposite to each other, a square column (58) is fixedly provided on the inner side of the two arc plates (56), a limiting block (59) is fixedly connected to the end of the square column (58), the two square columns (58) are movably inserted into the corresponding square groove one (510), and the two limiting blocks (59) are respectively slidably connected to the corresponding square groove two (511), and an insert block (57) is also provided on the inner side of the two arc plates (56), and a slot (55) adapted to the insert block (57) is provided on the outer side of the knife rod (1), and a limiting component (53) for preventing the threaded sleeve (52) from dislocating is provided between the arc plate (56) and the shaft rod (14).

10. The layered milling device according to claim 9, characterized in that: The limit assembly (53) comprises two guide pillars (531) fixed on the outside of the shaft (14) and arc strips (534) fixed on the outside of two arc plates (56); the outsides of the two guide pillars (531) are both movably sleeved with L-shaped clamps (532); and the outsides of the two guide pillars (531) are both sleeved with springs (533) that fix the shaft (14) and the corresponding clamps (532).

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