A layered chip milling tool and a chip milling apparatus thereof

Abstract

The present application relates to the technical field of metal processing, in particular to a layered milling chip cutter and a milling chip equipment thereof, the milling chip cutter comprises a cutter bar and four triangular blade pieces, two installation grooves one and two installation grooves two are arranged at the bottom end of the cutter bar, the installation grooves one and the installation grooves two are alternately and evenly distributed in a ring shape, and four blade pieces are respectively installed in the corresponding installation grooves one and installation grooves two through locking bolts, the cutting edge of the milling chip cutter has high utilization rate, long service life and low cost; the milling chip equipment comprises a base, a bearing table opposite to the layered milling chip cutter is fixedly arranged at the top of the base, and a clamping mechanism for quickly and stably clamping the metal to be processed is arranged in the bearing table, the milling chip equipment can realize the cooperation of multi-directional clamping and negative pressure solid suction, so that the clamping stability of the workpiece to be processed can be greatly improved, and the multi-directional clamping and negative pressure solid suction are one-step, which is a clever structure design.

Description

Technical Field

[0001] This invention relates to the field of metal processing technology, specifically to a layered milling tool and milling equipment. Background Technology

[0002] A milling cutter is a rotating cutting tool with one or more cutting teeth used for milling operations. During operation, each cutting tooth sequentially and intermittently removes the excess material from the workpiece. It is mainly used on milling machines to machine planes, steps, grooves, shaped surfaces, and cut off workpieces.

[0003] The prior art discloses Chinese Patent No. CN 102756400 A: a wood chip forming milling machine, which discloses a second slide and a clamp for clamping the upper and lower end faces of the wood chip to be processed. The wood chip is clamped by the clamping part formed by the upper half clamp and the cantilever extending from the lower half clamp of the clamp, and the wood chip is clamped by the extension and retraction of the inverted clamping cylinder.

[0004] However, the aforementioned existing technology still has certain drawbacks. In the process of use, it is necessary to actively clamp the workpiece to be processed by extending and retracting the clamping cylinder, which generates energy consumption. It is also necessary to perform maintenance on the power source of clamping from time to time, making it inconvenient to use. Summary of the Invention

[0005] The purpose of this invention is to provide a layered milling tool and a milling device thereof to solve the problems mentioned in the background art.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] A layered milling cutter includes a cutter shank and four inserts. The bottom end of the cutter shank has two mounting slots 1 and two mounting slots 2. The mounting slots 1 and 2 are evenly distributed in a ring alternation. The four inserts are respectively installed in the corresponding mounting slots 1 and 2 by locking bolts.

[0008] All four blades are designed as equilateral triangular blades, and all four blades are designed with a large arc combined with an 11° back angle, a 0° cutting edge angle and a 15° front angle, making the cutting edge sharp.

[0009] A layered milling device is provided, which uses the aforementioned layered milling cutter for machining. The layered milling device includes a base, a cross column fixedly mounted on the top of the base, a lifting platform movably sleeved on the cross column, a hydraulic cylinder for driving the lifting platform to move up and down fixedly mounted on the outside of the cross column, a slide and a feed member for driving the slide to feed are mounted on the bottom of the lifting platform, a drive motor is fixedly mounted on the bottom of the slide, a shaft is fixedly connected to the end of the output shaft of the drive motor, and a tool holder is detachably mounted on the end of the shaft.

[0010] The base is fixedly provided with a support platform that faces the layered milling cutter. The support platform is equipped with a clamping mechanism that can quickly and stably clamp the metal to be processed.

[0011] In a preferred embodiment, the support platform includes a seat frame fixed to the top of the base, a seat block fixed in the middle of the bottom of the seat frame cavity, a support frame fixed in the middle of the top of the seat block, and slots opened at the bottom ends of both sides of the support frame. A clamping mechanism is installed inside the support frame.

[0012] In a preferred embodiment, the clamping mechanism includes a ring plate, with four sets of two square bars fixedly connected between the outer side of the ring plate and the inner side of the support frame. A lifting cylinder is movably sleeved inside the ring plate, and a sealing gasket is fixedly provided on the top surface of the lifting cylinder. An air hole is opened through the top surface of the lifting cylinder at the position inside the sealing gasket. A piston disc is movably sleeved inside the lifting cylinder, and a spring is fixedly connected between the piston disc and the top surface of the inner side of the lifting cylinder.

[0013] In a preferred embodiment, the clamping mechanism further includes through slots that pass through the middle of the four sides of the support frame and supports fixed on the outside of the lifting cylinder and corresponding to the through slots. A top bar is movably inserted inside each through slot, and a lever is hinged to the end of each support. A spindle is fixed between the two square bars in each group, and a slot is opened through one side of each lever, with the spindle movably inserted inside the corresponding slot.

[0014] Each of the aforementioned dial plates has a slider fixed on both sides of the end away from the corresponding support. The four top bars have a recessed groove at one end extending into the frame. The inner cavity of the recessed groove has a sliding groove on both sides. The end of the dial plate extends into the corresponding recessed groove, and the sliders on both sides of the end of the dial plate are slidably connected to the corresponding sliding groove.

[0015] In a preferred embodiment, a negative pressure generating component is provided between the piston disc and two opposing dial plates. The negative pressure generating component includes a through groove opened on the outside of the dial plate and connected to the corresponding slot. A ring block is movably sleeved on the outside of the spindle corresponding to the through groove. Ear seats are fixedly provided on the bottom end face of the piston disc and the outside of the ring block. Guide wheels are installed at the bottom of the lifting cylinder at the positions corresponding to the two through grooves. A pull rope wrapped around the corresponding guide wheel is fixedly connected between the two corresponding ear seats.

[0016] Vertical rods are fixedly installed on the outer side of the lifting cylinder at the positions of two oppositely arranged supports. The bottom end of the vertical rods moves through the ring plate and the corresponding support in sequence. Springs are sleeved on the outer side of the vertical rods to fix and connect the ring plate and the corresponding support.

[0017] In a preferred embodiment, a sealing plate is hinged to the outer side of the seat frame, and an inclined filter plate is fixedly provided on the inner side of the sealing plate. A transition strip is fixedly provided on the outer side of the seat block at the position corresponding to the sealing plate, and the side of the transition strip facing the corresponding sealing plate is set as an arc surface structure.

[0018] A transition pipe is fixedly installed on the inner side of the seat frame, and multiple nozzles are installed on the outer side of the transition pipe. A pipe connecting the transition pipe and the inner cavity of the seat frame is provided on the outer side of the seat frame, and a pump is installed at the liquid inlet end of the pipe.

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

[0020] In a preferred embodiment, a connecting mechanism is provided between the tool holder and the shaft. The connecting mechanism includes a threaded column fixedly connected to the bottom end of the shaft and a threaded sleeve threadedly sleeved to 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 opened on the outside of the disc, and the opposite ends of square grooves 1 and 2 are connected.

[0021] The connecting mechanism also includes two opposing arc plates, with square columns fixedly provided on the inner sides of both arc plates. A limiting block is fixedly connected to the end of the square column. The two square columns are movably inserted into the corresponding square groove one. The two limiting blocks are slidably connected to the corresponding square groove two. Insert blocks are also provided on the inner sides of the two arc plates. A slot adapted to the insert block is opened on the outer side of the tool bar. A limiting component for preventing the threaded sleeve from dislodging is provided between the arc plate and the shaft.

[0022] In a preferred embodiment, the limiting component includes two guide posts fixed to the outside of the shaft and an arc strip fixed to the outside of two arc plates. An L-shaped clamp is movably sleeved on the outside of each of the two guide posts, and a spring is sleeved on the outside of each of the two guide posts to fix and connect the shaft and the corresponding clamp.

[0023] The beneficial effects of this invention are:

[0024] 1. The staggered layered installation method of the four blades in this invention allows different blades to contact the machining surface at different positions during the milling process, which can effectively reduce the wear of the blades. At the same time, it can obtain a higher feed F value and a larger feed angle in the area. In addition, it can realize six repositioning of a single blade, which greatly improves the effective utilization rate of the blade edge and increases the service life of the blade, thereby achieving the goal of reducing the cost of using machining tools.

[0025] 2. This invention utilizes the gravity of the workpiece itself to press down the lifting cylinder, achieving multi-directional clamping and negative pressure suction in one step without the need for external power supply. The structure is ingeniously designed, and the combination of multi-directional clamping and negative pressure suction can greatly improve the clamping stability of the workpiece.

[0026] 3. This invention uses a threaded sleeve connected to the outside of the threaded column to cover the two arc plates that hold the tool holder, and uses a limiting component to lock the upper and lower ends of the threaded sleeve when the tool holder is installed. This can effectively prevent the tool from loosening during milling, and the tool can be easily and quickly disassembled and assembled. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a first-view overall structural schematic diagram of the milling tool of the present invention;

[0029] Figure 2 This is a second-view overall structural schematic diagram of the milling tool of the present invention;

[0030] Figure 3 This is a schematic diagram of the insert structure of the milling cutter of the present invention;

[0031] Figure 4 This is a schematic diagram of the wear of inserts No. 2 and No. 4 during the use of the milling cutter of this invention;

[0032] Figure 5 This is a schematic diagram showing the wear of inserts No. 1 and No. 3 during the use of the milling cutter of this invention;

[0033] Figure 6 This is an overall schematic diagram of the milling equipment of the present invention;

[0034] Figure 7 This is a schematic cross-sectional view of the milling equipment of the present invention;

[0035] Figure 8 This is a partial structural schematic diagram of the milling device of the present invention;

[0036] Figure 9 This is the present invention. Figure 8 Overall top view diagram;

[0037] Figure 10 This is the present invention. Figure 9 Schematic diagram of the cross-sectional structure along the AA direction;

[0038] Figure 11 This is the present invention. Figure 9 Schematic diagram of the cross-sectional structure along the BB direction;

[0039] Figure 12 This is a schematic diagram of the clamping mechanism of the milling device of the present invention;

[0040] Figure 13 This is a schematic diagram of the overall connection between the tool holder and the shaft of the milling device of the present invention;

[0041] Figure 14 This is the present invention. Figure 13 The diagram shows the unfolded shape.

[0042] The attached figures are labeled as follows: 1. Tool holder; 2. Mounting slot one; 3. Mounting slot two; 4. Blade; 5. Connecting mechanism; 51. Threaded post; 52. Threaded sleeve; 53. Limiting assembly; 531. Guide post; 532. Chuck; 533. Spring one; 534. Arc strip; 54. Disc; 55. Slot; 56. Arc plate; 57. Insert block; 58. Square post; 59. Limiting block; 510. Square slot one; 511. Square slot two; 6. Support platform; 61. Seat frame; 62. Seat block; 63. Support frame; 64. Groove; 7. Clamping mechanism; 71. Ring plate; 72. Square strip; 73. Lifting cylinder; 74. Air hole; 75. Sealing gasket; 76. Piston disc; 77. Spring II; 78. Ear seat; 79. Guide wheel; 710. Pull rope; 711. Support; 712. Dial plate; 713. Mandrel; 714. Settling groove; 715. Groove; 716. Vertical rod; 717. Spring III; 718. Top bar; 719. Through groove; 8. Base; 9. Cross column; 10. Lifting platform; 11. Hydraulic cylinder; 12. Slide; 13. Feeding component; 14. Shaft; 15. L-shaped retaining strip; 16. Pipe; 17. Transition pipe; 18. Nozzle; 19. Sealing plate; 20. Filter plate; 21. Round rod; 22. Swing bar; 23. Transition bar. Detailed Implementation

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] The layered milling tool of the present invention belongs to the category of tools for metal milling, and is used for rough milling of cavities of mold-type parts, rapid rough milling of deep steps, etc.

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

[0046] Refer to the instruction manual appendix Figures 1-5 The present invention provides a layered milling tool, including a tool holder 1 and four inserts 4. The bottom end of the tool holder 1 has two mounting slots 1 2 and two mounting slots 2 3. The mounting slots 1 2 and the mounting slots 2 3 are evenly distributed in a ring. The four inserts 4 are respectively installed in the corresponding mounting slots 1 2 and mounting slots 2 3 by locking bolts.

[0047] All four inserts 4 are designed as equilateral triangular blades. Each insert 4 features a large arc combined with an 11° clearance angle (the angle between the cutting edge of the insert 4 and the machined surface of the workpiece), a 0° cutting edge angle (one of the angles of the cutting edge of the insert 4), and a 15° rake angle (the angle between the cutting edge of the insert 4 and the machined surface of the workpiece), ensuring a sharp cutting edge. During insert installation, inserts 4 are designated as No. 1 and No. 3 in the two mounting slots 2 and 3, with the sharp corners facing the outer bottom corners. Inserts 4 are designated as No. 2 and No. 4 in the two mounting slots 1 and 2, with the large arc edge of the insert 4 facing the bottom surface and protruding 0.2 mm from the bottom surface. This staggered, layered installation of the four inserts 4 ensures that different positions of the inserts 4 contact the machined surface during milling, effectively reducing insert wear. Furthermore, it allows for higher feed F values ​​and a larger feed angle within a wider area during machining.

[0048] It should be noted that the unique installation method of the four blades 4 in this invention allows the three corners of blades 1 and 3 and the three arc edges of blades 2 and 4 to be used alternately. At the same time, after the three corners of blades 1 and 3 and the three arc edges of blades 2 and 4 have been used, blades 1 and 3 can be swapped with blades 2 and 4 to obtain three new usable corners and arc edges. In this way, a single blade 4 can be swapped six times, which greatly improves the effective utilization rate of the cutting edge of the blade 4 and increases the service life of the blade 4, thereby reducing the cost of using machining tools.

[0049] Example 1: Refer to the appendix of the instruction manual. Figures 6-7This invention provides a layered milling device that uses the aforementioned layered milling cutter for machining. The layered milling device includes a base 8, a cross column 9 fixedly mounted on the top of the base 8, a lifting platform 10 movably sleeved on the cross column 9, a hydraulic cylinder 11 fixedly mounted on the outside of the cross column 9 for driving the lifting platform 10 to move up and down, a slide 12 and a feed component 13 for driving the slide 12 to feed are mounted on the bottom of the lifting platform 10, a drive motor is fixedly mounted on the bottom of the slide 12, and a shaft 14 is fixedly connected to the end of the output shaft of the drive motor. The cutter bar 1 is detachably mounted on the end of the shaft 14. The feed component 13 is a feed component that drives the milling cutter to move in multiple directions in the horizontal direction in the prior art, which will not be described in detail here.

[0050] The base 8 is fixedly provided with a support platform 6 facing the layered milling cutter. The support platform 6 is provided with a clamping mechanism 7 that is used to quickly and stably clamp the metal to be processed.

[0051] It should be noted that the milling equipment of the present invention uses the clamping mechanism 7 to fix the workpiece to be processed inside the bearing table 6, and uses the cooperation of the feed 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, such as Figures 7-8 As shown, the support platform 6 includes a seat frame 61 fixed to 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, and a support frame 63 is fixedly provided in the middle of the top of the seat block 62. Slots 64 are provided at the bottom ends of both sides of the support frame 63. The clamping mechanism 7 is installed inside the support frame 63. 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. 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 processing method, which can effectively prevent the splashing of waste chips during the processing and facilitate the subsequent cleaning of waste chips.

[0054] Specifically, such as Figures 8-12As shown, the clamping mechanism 7 includes a ring plate 71. Four sets of square bars 72, two in each set, are fixedly connected between the outer side of the ring plate 71 and the inner side of the support frame 63. A lifting cylinder 73 is movably sleeved inside the ring plate 71. A sealing gasket 75 is fixedly provided on the top surface of the lifting cylinder 73, and an air hole 74 is opened through the top surface of the lifting cylinder 73 at the position inside the sealing gasket 75. A piston disc 76 is movably sleeved inside the lifting cylinder 73. A spring 77 is fixedly connected between the piston disc 76 and the inner top surface of the lifting cylinder 73. The sealing gasket 75 allows the area between the workpiece and the inner side of the sealing gasket 75 to form a sealed cavity after the lifting cylinder 73 is pressed down. This increases the volume of the cavity between the piston disc 76 and the workpiece as it moves downward, resulting in a negative pressure space (this negative pressure space is the pressure in the cavity between the piston disc 76 and the workpiece compared to before the lifting cylinder 73 is pressed down).

[0055] The clamping mechanism 7 also includes through slots that pass through the center of the four sides of the support frame 63 and supports 711 fixed on the outside of the lifting cylinder 73 and corresponding to the through slots. Each through slot has a top bar 718 that is movably inserted inside. The upper end face of the top bar 718 is made into an arc surface to reduce the accumulation of waste on it. Furthermore, cleaning brushes can be added at the positions of each through slot on the inner and outer sides of the support frame 63 to clean the waste residue on the surface of the top bar 718 entering the corresponding through slot, so as to avoid the wear of the surface of the top bar 718 during the movement caused by the long-term blockage of the through slot. Each support 711 has a lever plate 712 hinged at its end. A spindle 713 is fixed between the two square bars 72 in each group. Each lever plate 712 has a slot 715 that passes through one side, and the spindle 713 is movably inserted inside the corresponding slot 715.

[0056] Each lever 712 has a slider fixed on both sides of the end away from the corresponding support 711. The four top bars 718 have a recessed groove 714 at the end extending into the frame 63. The recessed groove 714 allows the lever 712 to not obstruct the clamping action of the corresponding top bar 718 when the top bar 718 is clamping the workpiece to be processed. The recessed groove 714 has a sliding groove on both sides of the inner cavity. The end of the lever 712 extends into the corresponding recessed groove 714, and the sliders on both sides of the end of the lever 712 are slidably connected to the corresponding sliding groove to limit the top bar 718 so that it will not disengage from the corresponding through groove when not in use.

[0057] A negative pressure generating component is provided between the piston disc 76 and two opposing deflector plates 712. The negative pressure generating component includes a through groove 719 opened on the outside of the deflector plate 712 and connected to the corresponding groove 715. A ring block is movably sleeved on the outside of the spindle 713 corresponding to the through groove 719. Ear seats 78 are fixedly provided on the bottom end face of the piston disc 76 and the outside of the ring block. The ear seats 78 connected to the outside of the ring block are in a state of moving through the corresponding through groove 719, so that the ring block will not move axially along the spindle 713. Guide wheels 79 are installed at the bottom of the lifting cylinder 73 at the positions corresponding to the two through grooves 719. 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 installed on the outer side of the lifting cylinder 73 at positions corresponding to two oppositely arranged supports 711. The bottom ends of the vertical rods 716 sequentially penetrate the ring plate 71 and the corresponding supports 711. A spring 717 is fitted on the outer side of the vertical rods 716 to fix and connect the ring plate 71 and the corresponding supports 711. During the deformation of the spring 717, the bottom ends of the vertical rods 716 always maintain the state of sequentially penetrating the ring plate 71 and the corresponding supports 711. The setting of this elastic component ensures that the lifting cylinder 73 will not exhibit the following behavior in its natural state: Figure 11 The state of contact between the workpiece and the ring plate 71, as shown, affects the placement of the workpiece to be processed.

[0059] It should be noted that during the clamping process of the workpiece to be processed, after the workpiece is placed on the top of the lifting cylinder 73, the workpiece will press down on the lifting cylinder 73 with its own pressure. During this process, as the lifting cylinder 73 moves downward passively, the spring 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. During this process, since the lever 712 is restricted by the spindle 713 that passes through the groove 715 at the corresponding position, the downward movement of the lifting cylinder 73 will drive the lever 712 to move downward, and at the same time, it will also drive the end of the lever 712 away from the corresponding ear seat 78 to deflect upward. Thus, the deflected lever 712 will drive the top bar 718 at the corresponding position to move closer to the workpiece along the through groove at the position. This realizes the use of four opposing top bars 718 to clamp the workpiece to be processed, 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 to the lug 78 on the ring block, the lifting cylinder 73 moves downward, which simultaneously drives the guide wheel 79 to move downward. This causes the other end of the pull rope 710 to pull the piston disc 76 downward and stretch the spring 77, increasing the volume of the cavity formed between the piston disc 76 and the workpiece when the workpiece initially contacts the lifting cylinder 73. This creates a negative pressure space (the negative pressure space is the pressure in the cavity between the piston disc 76 and the workpiece compared to before the lifting cylinder 73 is pressed down), allowing the workpiece to be firmly attached to the top surface of the lifting cylinder 73.

[0061] Conversely, after processing, as the workpiece is gradually lifted upwards, the negative pressure space will gradually return to normal, releasing the negative pressure suction state on the workpiece. At the same time, multiple top bars 718 will also move away from the workpiece while the corresponding lever plate 712 swings, releasing the clamping state on the workpiece.

[0062] The clamping mechanism 7 uses a combination of multi-directional clamping and negative pressure suction to greatly improve the clamping stability of the workpiece to be processed, and the structure is ingeniously designed.

[0063] Specifically, such as Figures 7-8 As shown, a sealing plate 19 is hinged to the outer side of the seat frame 61. An inclined filter plate 20 is fixedly installed on the inner side of the sealing plate 19. A transition strip 23 is fixedly installed on the outer side of the seat block 62 at a position corresponding to the sealing plate 19. The side of the transition strip 23 facing the sealing plate 19 is designed with an arc surface structure. When the sealing plate 19 is in the position shown... Figure 6 When the filter plate 20 is 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 down 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 is matched with part of the motion trajectory of the filter plate 20 when it deflects synchronously with the sealing plate 19.

[0064] A transition pipe 17 is fixedly provided on the inner side of the seat frame 61, and multiple nozzles 18 are installed on the outer side of the transition pipe 17. The water spraying direction of the nozzles 18 is towards the area between the contact surface of the tool and the workpiece. This not only achieves the purpose of cooling the workpiece and the tool, but also, to a certain extent, uses the sprayed water flow to block the upward splashing of waste chips. A pipe 16 is provided on the outer side of the seat frame 61 to connect the transition pipe 17 and the inner cavity of the seat frame 61. A pump is installed at the liquid inlet end of the pipe 16.

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

[0066] It should be noted that during the milling process of the clamped workpiece, most of the sprayed coolant and splashed debris will fall onto the filter plate 20, and a small portion will fall onto the arc area of ​​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 debris, realizing the recycling of the coolant. The debris trapped on the filter plate 20 will be removed after the machining is completed by moving the swing bar 22 away from the area where the L-shaped retaining 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, allowing the debris to roll out of the seat frame 61. Some of the debris remaining on the filter plate 20 can be cleaned with the help of a cleaning brush.

[0067] Example 2: Refer to the appendix of the instruction manual. Figures 13-14 The present invention also provides a layered milling device, wherein a connecting mechanism 5 is provided between the tool holder 1 and the shaft 14. The connecting mechanism 5 includes a threaded post 51 fixedly connected to the bottom end of the shaft 14 and a threaded sleeve 52 threadedly sleeved to the outside of the threaded post 51. A disc 54 is fixedly connected to the bottom end of the threaded post 51. Two square grooves 510 and two square grooves 511 are opened on the outside of the disc 54, and the opposite ends of the square grooves 510 and the square grooves 511 are connected.

[0068] The connecting mechanism 5 also includes two opposing arc plates 56. A square post 58 is fixedly mounted on the inner side of each arc plate 56. A limiting block 59 is fixedly connected to the end of each square post 58. The two square posts 58 movably pass through the interior of corresponding square groove 1 510. The two limiting blocks 59 are slidably connected to the interior of corresponding square groove 2 511. The length of the square post 58 is greater than the length of the corresponding square groove 1 510, while the sum of the lengths of the square post 58 and the corresponding limiting block 59 is less than the lengths of the square groove 1 510 and the square groove 2 511 at their respective locations. The sum of the lengths of 511, and the setting of the limiting block 59 can prevent the corresponding square column 58 from completely disengaging from the square slot 510 at its position. The inner sides of the two arc plates 56 are also provided with insert blocks 57. The outer side of the tool bar 1 is provided with a slot 55 that matches the insert block 57. The upper and lower sides of the insert block 57 and the slot 55 are both set with an flared structure to facilitate quick alignment and insertion between the insert block 57 and the corresponding slot 55. A limiting component 53 is provided between the arc plate 56 and the shaft 14 to prevent the threaded sleeve 52 from dislodging.

[0069] It should be noted that during the installation of the aforementioned layered milling cutter, the threaded sleeve 52 is screwed in so that it moves toward the shaft 14 until it completely releases the restriction between the two arc plates 56. Then, the two arc plates 56 are pulled apart to move in opposite directions. The area where the slot 55 on the tool holder 1 is located is then placed between the two arc plates 56. Subsequently, the two arc plates 56 are moved toward each other until they are in contact with the outside of the tool holder 1. Then, the threaded sleeve 52 is screwed in so that it moves downward to cover the closed arc plates 56. Finally, the position of the threaded sleeve 52 is limited by the limiting component 53 to prevent the tool from coming loose during the milling process.

[0070] Specifically, such as Figure 14 As shown, the limiting assembly 53 includes two guide posts 531 fixed to the outside of the shaft 14 and an arc strip 534 fixed to the outside of the two arc plates 56. L-shaped clamps 532 are movably sleeved on the outside of the two guide posts 531, and springs 533 are sleeved on the outside of the two guide posts 531 to fix and connect the shaft 14 and the corresponding clamps 532. The distance between the opposite ends of the two guide posts 531 is less than the inner diameter of the threaded sleeve 52, and when the springs 533 are in their 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 face of the arc strip 534 and the lower end face of the L-shaped chuck 532 is equal to the height of the threaded sleeve 52. During the process of limiting the upper and lower ends of the threaded sleeve 52 using the limiting component 53, after the arc plate 56 holds the tool bar 1, the threaded sleeve 52 is twisted so that its lower end moves downward to a state of contact with the arc strip 534 on the arc plate 56. At this time, the chuck, having lost the obstruction of the threaded sleeve 52, is reset under the restoring force of the spring 533. Thus, the two L-shaped chucks 532, after being reset, use their opposite ends to stop the upper end face of the threaded sleeve 52, thereby completing the limitation of the threaded sleeve 52.

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

[0073] The foregoing has shown and described 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. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A layered milling device, characterized in that: The layered milling cutter includes a cutter bar (1) and four inserts (4). The bottom end of the cutter bar (1) has two mounting slots (2) and two mounting slots (3). The mounting slots (2) and the mounting slots (3) are evenly distributed in a ring. The four inserts (4) are installed in the corresponding mounting slots (2) and mounting slots (3) respectively by locking bolts. All four blades (4) are set as equilateral triangular sheet structures, and all four blades (4) are designed with a large arc combined with an 11° back angle, a 0° cutting angle and a 15° front angle, making the cutting edge sharp; The layered milling equipment uses the layered milling cutter for processing. The layered milling equipment 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 outside of the cross column (9), a slide (12) and a feed member (13) for driving the slide (12) to feed are installed at the bottom of the lifting platform (10), a drive motor is fixedly installed at the bottom of the slide (12), a shaft (14) is fixedly connected to the end of the output shaft of the drive motor, and a tool bar (1) is detachably installed at the end of the shaft (14). The base (8) is fixedly provided with a support platform (6) facing the layered milling cutter. The support platform (6) is provided with a clamping mechanism (7) for quickly and stably clamping the metal to be processed. The support platform (6) includes a seat frame (61) fixed to the top of the base (8), a seat block (62) fixed in the middle of the bottom of the inner cavity of the seat frame (61), a support frame (63) fixed in the middle of the top of the seat block (62), and slots (64) are opened at the bottom of both sides of the support frame (63). The clamping mechanism (7) is installed on the inner side of the support frame (63). The clamping mechanism (7) includes a ring plate (71), and four sets 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 set. The ring plate (71) is fitted with a lifting cylinder (73) in a through-type movement. A sealing gasket (75) is fixedly provided on the top surface of the lifting cylinder (73), and an air hole (74) is opened through the top surface of the lifting cylinder (73) at the position inside the sealing gasket (75). A piston plate (76) is fitted inside the lifting cylinder (73), and a spring (77) is fixedly connected between the piston plate (76) and the top surface of the inner side of the lifting cylinder (73). The clamping mechanism (7) further includes through slots that are opened in the middle of the four sides of the support frame (63) and support seats (711) that are fixed on the outside of the lifting cylinder (73) and are arranged in a corresponding manner with the through slots. A top bar (718) is movably inserted inside each through slot. A lever plate (712) is hinged to the end of each support seat (711). A spindle (713) is fixed between the two square bars (72) in each group. A groove (715) is opened through one side of each lever plate (712). The spindle (713) is movably inserted inside the corresponding groove (715). Each of the dial plates (712) has a slider fixed on both sides of the end away from the corresponding support (711). The four top strips (718) have a groove (714) at one end extending into the frame (63). The inner cavity of the groove (714) has a sliding groove on both sides. The end of the dial plate (712) extends into the corresponding groove (714), and the sliders on both sides of the end of the dial plate (712) are slidably connected to the corresponding sliding groove. A negative pressure generating assembly is provided between the piston disc (76) and two opposing dial plates (712). The negative pressure generating assembly includes a through groove (719) opened on the outside of the dial plate (712) and connected to the corresponding groove (715). A ring block is movably sleeved on the outside of the spindle (713) corresponding to the through groove (719). Ear seats (78) are fixedly provided on the bottom end face of the piston disc (76) and the outside of the ring block. Guide wheels (79) are installed at the bottom of the lifting cylinder (73) at the positions corresponding to the two through grooves (719). A pull rope (710) is fixedly connected between the two corresponding ear seats (78) and wound around the corresponding guide wheel (79). A vertical rod (716) is fixedly provided on the outside of the lifting cylinder (73) at the position of two oppositely arranged supports (711). The bottom end of the vertical rod (716) passes through the ring plate (71) and the corresponding support (711) in sequence. A spring three (717) is sleeved on the outside of the vertical rod (716) to fix and connect the ring plate (71) and the corresponding support (711).

2. The layered milling device according to claim 1, characterized in that: A sealing plate (19) is hinged to the outside of the seat frame (61). A filter plate (20) is fixedly installed on the inside of the sealing plate (19) and is inclined. A transition strip (23) is fixedly installed on the outside of the seat block (62) at the position corresponding to the sealing plate (19), and the side of the transition strip (23) facing the corresponding sealing plate (19) is set as an arc surface structure. The inner side of the seat frame (61) is fixedly provided with a transition pipe (17), and multiple nozzles (18) are installed on the outer side of the transition pipe (17). The outer side of the seat frame (61) is provided with a pipe (16) that connects the transition pipe (17) and the inner cavity of the seat frame (61). A pump is installed at the liquid inlet end of the pipe (16).

3. The layered milling device according to claim 2, characterized in that: 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 clip (15) fixed to the outside of the sealing plate (19). A swing bar (22) is rotatably installed on the outside of the round rod (21).

4. The layered milling device according to claim 1, characterized in that: A connecting mechanism (5) is provided between the tool holder (1) and the shaft (14). The connecting mechanism (5) includes a threaded column (51) fixedly connected to the bottom end of the shaft (14) and a threaded sleeve (52) threadedly sleeved to 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 (510) and two square grooves (511) are opened on the outside of the disc (54). The square grooves (510) and the square grooves (511) are collinear and their opposite ends are connected. The connecting mechanism (5) also includes two arc plates (56) arranged opposite to each other. Square columns (58) are 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). The two limiting blocks (59) are slidably connected to the corresponding square groove two (511). Insert blocks (57) are also provided on the inner side of the two arc plates (56). A slot (55) adapted to the insert block (57) is opened on the outer side of the tool bar (1). A limiting component (53) for preventing the threaded sleeve (52) from dislodging is provided between the arc plate (56) and the shaft (14).

5. A layered milling device according to claim 4, characterized in that: The limiting component (53) includes two guide posts (531) fixed on the outside of the shaft (14) and an arc strip (534) fixed on the outside of the two arc plates (56). The two guide posts (531) are movably sleeved with L-shaped clamps (532), and the two guide posts (531) are sleeved with springs (533) that fix and connect the shaft (14) and the corresponding clamps (532).

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