PCD (Poly Crystal Diamond) reticulated surface milling cutter

Abstract

The utility model discloses a PCD (Poly Crystal Diamond) reticulated surface milling cutter and belongs to the technical field of machining. The connecting PCD reticulated surface milling cutter comprises a cutter head, a connecting shaft and a cutter head assembly, a mounting hole is formed in the center of the front end of the cutter head, and a mounting cavity communicated with the mounting hole is formed in the center of the bottom end of the cutter head; the number of the tool bit assemblies is multiple. According to the PCD reticulated surface milling cutter, by arranging an adjusting seat in the cutter head assembly, when the roughness of a surface with a special requirement is machined, an adjusting bolt can be twisted to drive the adjusting seat to move inwards, and then an inclined surface at the top end of the adjusting seat extrudes an inclined surface at the bottom of a movable seat, so that the movable seat vertically moves upwards, and the height of a blade is adjusted; according to the adjustable tool bit assembly, automatic adjustment can be conducted according to requirements during use, the adjustable mechanism is convenient to use, and the problem that the tool bit assembly needs to be replaced repeatedly when different machining requirements are applied is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a PCD reticulated surface milling cutter. Background Art

[0002] A milling cutter is a rotary tool with one or more teeth used for milling. Each tooth cuts off the excess of the workpiece intermittently in sequence during operation. Milling cutters are mainly used to process planes, steps, grooves, forming surfaces and cut off workpieces on milling machines.

[0003] Most of the current PCD milling cutters use a fixed installation method to install the cutter head. However, each blade will inevitably have a slight error, and when multiple blades are used in combination, the error is large. It is difficult for the tool processing to achieve the specified roughness and the required reticulated appearance, and the life is also short. Therefore, in the long-term studio, the staff needs to repeatedly replace and adjust the blade error to improve the roughness.

[0004] For example, in a Chinese patent with publication number CN217832017U, a super-hard surface milling cutter with adjustable roughness and precision flatness is provided, comprising a cutter disc and a tool holder arranged at one end of the cutter disc, a plurality of PCD tool holder grooves distributed in annular shapes with equal spacing are provided on the outer wall surface of the cutter disc, a PCD tool holder is fixedly installed in the PCD tool holder groove by a tool holder locking screw, a cutting edge is provided at one end of the PCD tool holder, and the cutting edge comprises a mesh cutting edge and a finishing cutting edge, a plurality of axial adjustment holes distributed in annular shapes with equal spacing are provided on the outer wall surface of the cutter disc, a tool holder axial adjustment screw is inserted in the axial adjustment hole, a nut is moved up and down by twisting laterally with the tool holder axis as the center, and the PCD tool holder is pushed to move vertically, but when the adjustment screw is rotated, the staff needs to frequently insert the nut and push it to rotate it for a certain distance, and then insert it again to push it, which is more troublesome, and the adjustment range is small. When processing for different roughnesses, the problem of repeatedly replacing the tool head will arise. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a PCD reticulated surface milling cutter.

[0006] The technical solution of the utility model is: a PCD reticulated surface milling cutter, comprising a cutter disc, a connecting shaft and a cutter head assembly; a mounting hole is provided at the center of the front end of the cutter disc, a mounting cavity connected to the mounting hole is provided at the center of the bottom end of the cutter disc, the connecting shaft is arranged in the inner cavity of the mounting hole, and the bottom end of the connecting shaft extends inwardly into the mounting cavity; the cutter head assembly is provided with a plurality of cutter head assemblies, and the plurality of cutter head assemblies are arranged around the circumference of the front end face of the cutter disc, the cutter head assembly comprises a movable seat, a knife groove seat capable of discharging metal chips and an adjustment seat capable of adjusting the angle of the movable seat, and one end of the movable seat protrudes from the end face of the cutter disc, and the protruding portion of the movable seat is provided with a knife capable of cutting materials The top end of the adjusting seat is inclined, and the bottom end of the movable seat corresponds to the top end of the adjusting seat; a limiting bolt is provided on the surface of the movable seat, one end of the limiting bolt is provided with a threaded portion extending to the inside of the movable seat, and the inside of the movable seat is provided with a sliding groove for the movement of the threaded portion, and the movable seat is connected to the cutter disc through the limiting bolt; an adjusting bolt is provided inside the adjusting seat, and the inside of the cutter disc is provided with a mounting groove for the horizontal movement of the adjusting seat, the adjusting seat is connected to the cutter disc through the adjusting bolt, and the internal thread of the cutter groove seat is connected with a fixing bolt, and the cutter groove seat is connected to the cutter disc through the fixing bolt.

[0007] Furthermore, a water outlet is provided on the surface of the knife groove seat, and an upper cold water hole is provided on the end surface of the knife disc and located on one side of the knife groove seat inwardly recessed.

[0008] Furthermore, a lower cold water hole is provided inwardly recessed inside the cutter disc and on one side of the movable seat, and a connecting hole connected to the water outlet is provided on one side of the top end of the upper cold water hole.

[0009] Furthermore, the bottom end of the upper cold water hole is connected to the inner cavity of the lower cold water hole, one end of the lower cold water hole extends inward and is connected to the installation cavity, the outer end of the lower cold water hole is provided with a first sealing head, and the outer end of the upper cold water hole is provided with a second sealing head.

[0010] Furthermore, through grooves are provided at the bottom end of the cutter disc and on both sides of the connecting shaft, and the cross-section of the through grooves is U-shaped.

[0011] Furthermore, the top end of the connecting shaft is recessed inwardly to form a hexagonal groove, the bottom end of the connecting shaft is recessed inwardly to form an assembly groove, and the cutter disc is mounted on the milling machine through the connecting shaft.

[0012] Furthermore, a movable groove for allowing the knife groove seat to move vertically is provided on one side of the movable seat.

[0013] Furthermore, a heat dissipation hole capable of increasing the contact area with air is provided on the annular surface of the cutter disc and on one side of the adjustment seat.

[0014] Furthermore, an upper threaded connection groove matched with the threaded portion is provided inside the cutter disc, and a lower threaded connection groove matched with the adjusting bolt is provided inside the cutter disc.

[0015] The beneficial technical effect of the utility model is as follows: by setting an adjustment seat in the cutter head assembly, when processing a surface with special requirements for roughness, the adjusting bolt can be twisted to drive the adjusting seat to move inward, and then the inclined surface at the top of the adjustment seat will squeeze the inclined surface at the bottom of the movable seat, and then the movable seat is limited by the limiting bolt, so that the movable seat moves vertically upward, and one side of the movable seat slides and fits the surface of the knife groove seat, so that the normal use function of the blade is not affected when the height is adjusted, thereby adjusting the height of the blade, and then adjusting the roughness of the processed surface, realizing self-adjustment according to needs during use, and the adjustable mechanism is easy to use, without the need to disassemble the cutter head assembly separately, and has a large adjustment range, avoiding the problem of repeatedly replacing the cutter head assembly when applying different processing requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a schematic side view of the structure of the utility model;

[0018] Figure 3 It is a front view cross-sectional schematic diagram of the structure of the upper threaded connection groove and the movable seat of the utility model;

[0019] Figure 4 It is a front view cross-sectional schematic diagram of the heat dissipation hole and the lower threaded connection groove of the utility model;

[0020] Figure 5 It is a schematic diagram of a side cross-section of the structure of the utility model;

[0021] Figure 6 It is a front view cross-sectional schematic diagram of the lower cold water hole and the movable seat of the utility model;

[0022] Figure 7 It is a top view cross-sectional schematic diagram of the blade and the blade groove seat of the utility model;

[0023] Figure 8 It is a side cross-sectional schematic diagram of the fixing bolt and the knife groove seat of the utility model.

[0024] The numbers and letters in the figure represent the corresponding component names:

[0025] 1. Cutter disc; 11. Mounting cavity; 12. Heat dissipation hole; 13. Lower threaded connection groove; 14. Upper threaded connection groove; 15. Upper cold water hole; 16. Lower cold water hole; 17. Through groove; 18. Mounting hole; 2. Fixing bolt; 3. Cutter head assembly; 31. Adjustment seat; 32. Movable seat; 321. Blade; 33. Cutter groove seat; 4. First sealing head; 5. Connecting shaft; 51. Assembly groove; 6. Adjustment bolt; 7. Limit bolt; 71. Threaded portion; 8. Second sealing head. DETAILED DESCRIPTION

[0026] In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the specific implementation methods of the utility model are further described in detail below in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0027] See attached Figure 1-6 As shown, the PCD textured surface milling cutter of the first embodiment includes a cutter disc 1, a connecting shaft 5 and a cutter head assembly 3; a mounting hole 18 is provided at the center of the front end of the cutter disc 1, a mounting cavity 11 connected to the mounting hole 18 is provided at the center of the bottom end of the cutter disc 1, through grooves 17 are provided at the bottom end of the cutter disc 1 and on both sides of the connecting shaft 5, and the cross-section of the through groove 17 is U-shaped, the connecting shaft 5 is arranged in the inner cavity of the mounting hole 18, and the bottom end of the connecting shaft 5 extends inwardly into the mounting cavity 11, the top end of the connecting shaft 5 is recessed inwardly with a hexagonal groove, and the bottom end of the connecting shaft 5 is recessed inwardly with an assembly groove 51, and the cutter disc 1 is mounted on a milling machine through the connecting shaft 5.

[0028] A heat dissipation hole 12 is provided on the annular surface of the cutter disc 1 and on one side of the adjustment seat 31 to increase the contact area with the air. The heat dissipation hole 12 can be used for heat dissipation of the milling cutter.

[0029] The end face of the cutter disc 1 is provided with a threaded hole adapted to the connecting shaft 5, and a threaded hole adapted to the connecting shaft 5 is opened inside the end face of the cutter disc 1, so that the connecting shaft 5 can be inserted into the hexagonal groove by a tool to rotate the connecting shaft 5, so that the connecting shaft 5 is installed in the center of the cutter disc 1.

[0030] There are multiple cutter head assemblies 3, and the multiple cutter head assemblies 3 are arranged along the annular surface of the cutter disc 1 and around the connecting shaft 5 as the center. Preferably, ten cutter head assemblies 3 are arranged.

[0031] The cutter head assembly 3 includes a movable seat 32, a knife groove seat 33 capable of discharging metal chips, and an adjustment seat 31 capable of adjusting the angle of the movable seat 32. A water outlet is provided on the surface of the knife groove seat 33, an upper cold water hole 15 is provided on the end surface of the cutter disc 1 and on one side of the knife groove seat 33 inwardly recessed, a lower cold water hole 16 is provided inwardly recessed on the inside of the cutter disc 1 and on one side of the movable seat 32, a connecting hole connected to the water outlet is provided on one side of the top of the upper cold water hole 15, the bottom end of the upper cold water hole 15 is connected to the inner cavity of the lower cold water hole 16, one end of the lower cold water hole 16 extends inwardly and is connected to the installation cavity 11, a first sealing head 4 is provided at the outer end of the lower cold water hole 16, and a second sealing head 8 is provided at the outer end of the upper cold water hole 15.

[0032] The upper cold water hole 15 and the lower cold water hole 16 serve as cold water pipes. When the cutter disc 1 is working, cold water enters the installation cavity 11 through the equipment on the milling machine, and enters the interior of the upper cold water hole 15 through the lower cold water hole 16. Subsequently, the cooling water enters the connecting hole through the upper cold water hole 15, and is discharged through the water outlet. The cooling water can be reduced when the milling cutter is working. By setting the second sealing head 8 and the first sealing head 4, the outer ends of the lower cold water hole 16 and the upper cold water hole 15 can be sealed to ensure the one-way flow of cooling water. When the interior of the upper cold water hole 15 and the lower cold water hole 16 needs to be cleaned, the corresponding second sealing head 8 or the first sealing head 4 can be removed.

[0033] See attached Figure 7-8 As shown, one end of the movable seat 32 protrudes from the end face of the cutter disc 1, and the protruding portion of the movable seat 32 is provided with a blade 321 capable of cutting the material, the cross-section of the top end of the adjustment seat 31 is inclined, the bottom end of the movable seat 32 corresponds to the top end of the adjustment seat 31, and a movable groove for the vertical movement of the knife groove seat 33 is provided on one side of the movable seat 32.

[0034] By making the cross-section of the top of the adjustment seat 31 inclined, and matching the bottom of the movable seat 32 with the top of the adjustment seat 31, when the adjustment seat 31 approaches the cutter disc 1, the top of the adjustment seat 31 will gradually squeeze the bottom of the movable seat 32, causing the movable seat 32 to slide upward, thereby driving the height of the blade 321 to be adjusted, so that the user can adjust the height of the blade 321 as needed, reducing the error between each blade 321, thereby avoiding the problem of poor surface roughness caused by the error of each blade 321 itself due to the inability to adjust the PCD milling cutter.

[0035] A limiting bolt 7 is provided on the surface of the movable seat 32, and one end of the limiting bolt 7 is provided with a threaded portion 71 extending into the interior of the movable seat 32, and a sliding groove is provided inside the movable seat 32 for the threaded portion 71 to move. When the movable seat 32 moves up and down, the movable seat 32 can slide vertically through the cooperation of the sliding groove and the threaded portion 71.

[0036] The movable seat 32 is connected to the cutter disc 1 through a limit bolt 7; an adjusting bolt 6 is arranged inside the adjusting seat 31, and a mounting groove for horizontal movement of the adjusting seat 31 is provided inside the cutter disc 1. The adjusting seat 31 is connected to the cutter disc 1 through the adjusting bolt 6, and the internal thread of the knife groove seat 33 is connected with a fixing bolt 2, and the knife groove seat 33 is connected to the cutter disc 1 through the fixing bolt 2.

[0037] When the adjusting bolt 6 is threadedly rotated, the adjusting bolt 6 drives the adjusting seat 31 to move inward, so that the top of the adjusting seat 31 pushes the bottom of the movable seat 32, so that the movable seat 32 moves upward while the limiting bolt 7 and the threaded portion 71 are limited, ensuring that the movable seat 32 can move vertically while the movable seat 32 will not fall off.

[0038] Furthermore, an upper threaded connection groove 14 adapted to the threaded portion 71 is provided inside the cutter disc 1 , and a lower threaded connection groove 13 adapted to the adjusting bolt 6 is provided inside the cutter disc 1 .

[0039] By providing the lower thread connection groove 13 and the upper thread connection groove 14 , the threaded portion 71 and the adjusting bolt 6 can be installed by threads.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as within the protection scope of the present invention.

Claims

1. A PCD reticulated face milling cutter, characterized in that: include: A cutter disc (1), a connecting shaft (5) and a cutter head assembly (3); A mounting hole (18) is provided at the center of the front end of the cutter disc (1), a mounting cavity (11) connected to the mounting hole (18) is provided at the center of the bottom end of the cutter disc (1), the connecting shaft (5) is arranged in the inner cavity of the mounting hole (18), and the bottom end of the connecting shaft (5) extends inwardly into the mounting cavity (11); The cutter head assembly (3) is provided in plurality, and the plurality of cutter head assemblies (3) are arranged around the circumference of the front end surface of the cutter disc (1), the cutter head assembly (3) comprises a movable seat (32), a knife groove seat (33) capable of discharging metal chips, and an adjustment seat (31) capable of adjusting the angle of the movable seat (32), one end of the movable seat (32) protrudes from the end surface of the cutter disc (1), and a blade (321) capable of cutting materials is provided on the protruding portion of the movable seat (32), the cross section of the top end of the adjustment seat (31) is inclined, and the bottom end of the movable seat (32) corresponds to the top end of the adjustment seat (31); A limiting bolt (7) is provided on the surface of the movable seat (32); one end of the limiting bolt (7) is provided with a threaded portion (71) extending into the interior of the movable seat (32); and a sliding groove for allowing the threaded portion (71) to move is provided inside the movable seat (32); the movable seat (32) is connected to the cutter disc (1) via the limiting bolt (7); An adjusting bolt (6) is arranged inside the adjusting seat (31); a mounting groove for allowing the adjusting seat (31) to move horizontally is provided inside the cutter disc (1); the adjusting seat (31) is connected to the cutter disc (1) via the adjusting bolt (6); a fixing bolt (2) is threadedly connected to the interior of the cutter groove seat (33); and the cutter groove seat (33) is connected to the cutter disc (1) via the fixing bolt (2).

2. The PCD reticulated face milling cutter according to claim 1, characterized in that: A water outlet is provided on the surface of the knife groove seat (33), and an upper cold water hole (15) is provided on the end surface of the knife disc (1) and located on one side of the knife groove seat (33) inwardly recessed.

3. The PCD textured face milling cutter according to claim 2, characterized in that: A lower cold water hole (16) is provided inwardly recessed inside the blade disc (1) and on one side of the movable seat (32), and a connecting hole connected to the water outlet is provided on one side of the top end of the upper cold water hole (15).

4. The PCD textured face milling cutter according to claim 3, characterized in that: The bottom end of the upper cold water hole (15) is connected to the inner cavity of the lower cold water hole (16), one end of the lower cold water hole (16) extends inwardly and communicates with the installation cavity (11), the outer end of the lower cold water hole (16) is provided with a first sealing head (4), and the outer end of the upper cold water hole (15) is provided with a second sealing head (8).

5. The PCD textured face milling cutter according to claim 1, characterized in that: A through groove (17) is provided at the bottom end of the cutter disc (1) and on both sides of the connecting shaft (5); the cross section of the through groove (17) is U-shaped.

6. The PCD reticulated face milling cutter according to claim 1, characterized in that: The top end of the connecting shaft (5) is recessed inwardly to form a hexagonal groove, and the bottom end of the connecting shaft (5) is recessed inwardly to form an assembly groove (51); the cutter head (1) is mounted on a milling machine via the connecting shaft (5).

7. The PCD textured face milling cutter according to claim 1, characterized in that: A movable groove for allowing the knife groove seat (33) to move vertically is provided on one side of the movable seat (32).

8. The PCD reticulated face milling cutter according to claim 1, characterized in that: A heat dissipation hole (12) capable of increasing the contact area with air is provided on the annular surface of the blade disc (1) and located on one side of the adjustment seat (31).

9. The PCD reticulated face milling cutter according to claim 1, characterized in that: An upper threaded connection groove (14) adapted to the threaded portion (71) is provided inside the cutter disc (1), and a lower threaded connection groove (13) adapted to the adjusting bolt (6) is provided inside the cutter disc (1).

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