Embedded disc-shaped milling cutter assembly for four-axis linkage machining center

Abstract

The embedded disc-shaped milling cutter assembly for the four-axis linkage machining center comprises a disc-shaped milling cutter body, a cutter bar connecting hole used for being connected with a cutter bar is formed in the center of the milling cutter body, and a plurality of cutter mounting grooves are evenly formed in the milling cutter body. A replaceable base plate is installed on the surface of the inner side of each tool installation groove, a tool bit is arranged on the outer side of each base plate, a pressing plate is arranged on the outer side of each tool bit, and the pressing plates, the tool bits and the base plates are sequentially fixed into the tool installation grooves from outside to inside through fixing pieces. The replaceable base plate is arranged in the cutter mounting groove of the milling cutter main body, and the base plate with the corresponding thickness can be flexibly arranged according to the machining requirement, so that the position of the cutter head is adjusted, the flexibility of the four-axis linkage machining center for machining parts is improved, and the parts with different models or shapes can be machined. The front-back position of the tool bit can be adjusted, and after the cutting edge of the tool bit is abraded due to long-time work, the cutting edge can be moved outwards so as to meet the machining requirement.

Description

Technical Field

[0001] This utility model relates to the field of CNC machining technology, specifically to an inlaid disc milling cutter assembly for a four-axis linkage machining center. Background Technology

[0002] In four-axis machining centers, disc milling cutters are widely used in machining complex curved surfaces and multi-angle machining scenarios. However, traditional milling cutter assemblies often employ integral cutter heads or welded insert structures, resulting in fixed cutter head positions and limited flexibility. When machining workpieces of different sizes or shapes, it is necessary to change the cutter or cutter head, leading to decreased machining efficiency and increased tool management costs. For example, when machining deep-cavity parts, insufficient cutter head extension requires the use of a dedicated long-bladed cutter, while machining narrow grooves necessitates the use of a short-bladed cutter, demonstrating poor adaptability. Furthermore, once the cutting edge of the cutter head wears down, it is usually necessary to disassemble and replace the entire insert or cutter head, which is costly. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide an inlaid disc milling cutter assembly for a four-axis linkage machining center. By setting a replaceable shim in the tool mounting groove of the milling cutter body, the shim of the appropriate thickness can be flexibly set according to the processing needs, thereby adjusting the position of the cutter head, improving the flexibility of the four-axis linkage machining center in processing parts, and effectively solving the problems in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an inlaid disc milling cutter assembly for a four-axis linkage machining center, comprising a disc-shaped milling cutter body, wherein a tool shank connection hole for connecting with a tool shank is provided at the center of the milling cutter body, and a plurality of tool mounting slots are evenly provided on the milling cutter body, wherein a replaceable pad is installed on the inner surface of each tool mounting slot, a cutter head is provided on the outer side of the pad, and a pressure plate is attached to the outer side of the cutter head, wherein the pressure plate, cutter head and pad are fixed in the tool mounting slot from the outside to the inside by fasteners.

[0005] As a preferred embodiment of this utility model, the inner surface of the tool mounting groove is provided with a U-shaped slot, and the side surface of the pad is fixedly provided with a locking block corresponding to the slot.

[0006] As a preferred embodiment of this utility model, the side surface of the pad that contacts the cutter head is uniformly provided with a plurality of pad retaining teeth, and the side surface of the cutter head is uniformly provided with a plurality of cutter head retaining teeth that mesh with the pad retaining teeth.

[0007] As a preferred embodiment of this utility model, the fixing component is a bolt, the inner surface of the tool mounting groove is provided with a screw hole matching the bolt, the side surface of the pad and the side surface of the pressure plate are both provided with through holes corresponding to the screw holes, and the side surface of the tool head is provided with an elongated hole corresponding to the screw holes.

[0008] As a preferred technical solution of this utility model, the fixing component is a fixing pin. The inner surface of the tool mounting groove is provided with a pin hole that matches the fixing pin. The side surface of the pad and the side surface of the pressure plate are both provided with through holes corresponding to the pin holes. The side surface of the cutter head is provided with an elongated hole corresponding to the pin hole. The side surface of the fixing pin is provided with a screw hole, and the side surface of the milling cutter body is provided with a fixing screw hole corresponding to the screw hole of the fixing pin. A fixing bolt is connected to the internal thread of the fixing screw hole.

[0009] As a preferred embodiment of this utility model, the end of the fixing bolt is provided with a rounded corner.

[0010] As a preferred embodiment of this utility model, the inner side of the tool mounting groove, opposite to the surface where the tool head is located, is provided with a secondary tool head and a pressure plate, a pad, and a fixing member for fixing the secondary tool head.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting a replaceable shim in the tool mounting groove of the milling cutter body, the shim of appropriate thickness can be flexibly set according to the processing needs, thereby adjusting the position of the cutter head, improving the flexibility of the four-axis linkage machining center in processing parts, and enabling the processing of parts of different models or shapes. The cutter head can also adjust its front and rear position. After the cutting edge of the cutter head wears down due to long-term operation, it can be moved outward to meet processing needs. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a top view of the structure of this utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the pad of this utility model;

[0015] Figure 4 This is a schematic diagram of the structure of the cutter head of this utility model;

[0016] Figure 5 This is a schematic diagram of another embodiment of the present invention.

[0017] In the diagram: 1. Milling cutter body, 2. Tool holder connecting hole, 3. Slot, 4. Backing plate, 41. Clamping block, 42. Backing plate clamping tooth, 5. Cutting head, 51. Cutting head clamping tooth, 6. Pressure plate, 7. Fixing component, 8. Through hole, 9. Long oval hole, 10. Secondary cutting head, 11. Fixing bolt. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-4 This utility model provides a technical solution: an inlaid disc milling cutter assembly for a four-axis linkage machining center, comprising a disc-shaped milling cutter body 1. A tool shank connection hole 2 for connecting to a tool shank is provided at the center of the milling cutter body 1. Several tool mounting slots are evenly distributed on the milling cutter body 1. A replaceable pad 4 is installed on the inner surface of each tool mounting slot. A cutter head 5 is disposed on the outer side of the pad 4, and a pressure plate 6 is disposed on the outer side of the cutter head 5. The pressure plate 6, cutter head 5, and pad 4 are sequentially fixed in the tool mounting slot from the outside to the inside by fasteners 7. By providing replaceable pads 4 in the tool mounting slots of the milling cutter body 1, pads 4 of appropriate thickness can be flexibly set according to machining needs, thereby adjusting the position of the cutter head 5. This improves the flexibility of the four-axis linkage machining center in machining parts, enabling the machining of parts of different models or shapes. By replacing pads 4 of different thicknesses, the position and radial extension of the cutter head 5 on the milling cutter body 1 can be controlled, adapting to differentiated machining requirements such as deep cavities and narrow grooves.

[0020] In a preferred embodiment, the inner surface of the tool mounting slot is provided with a U-shaped groove 3, and the side surface of the pad 4 is fixedly provided with a locking block 41 corresponding to the groove 3. The cooperation between the groove 3 and the locking block 41 provides precise positioning for the installation of the pad 4 in the tool mounting slot. During assembly, the locking block 41 can smoothly embed into the groove 3, ensuring that the pad 4 is accurately positioned according to the predetermined position, thereby avoiding errors in the installation angle and position of the tool head 5 due to the deviation of the pad position, thus ensuring the overall machining accuracy of the tool assembly and helping to improve the quality and dimensional consistency of the machined workpiece.

[0021] Meanwhile, the interlocking of the slot 3 and the locking block 41 increases the connection strength and stability between the backing plate 4 and the tool mounting slot. During milling, the cutting force on the tool head 5 is large and varies in direction. The interlocking of the slot 3 and the locking block 41 can effectively prevent the backing plate 4 from shifting or shaking in the axial and radial directions, ensuring the stable installation of the tool throughout the machining process. This reduces problems such as tool vibration, accelerated wear, and machining errors caused by loosening of the backing plate, thereby improving the tool's service life and machining reliability.

[0022] In a preferred embodiment, the side surface of the pad 4 that contacts the cutter head 5 is uniformly provided with a plurality of pad retaining teeth 42, and the side surface of the cutter head 5 is uniformly provided with a plurality of cutter head retaining teeth 51 that mesh with the pad retaining teeth 42. The meshing of the pad retaining teeth 42 and the cutter head retaining teeth 51 provides precise positioning for the installation of the cutter head 5 on the pad 4. During assembly, the cutter head retaining teeth 51 can tightly engage with the pad retaining teeth 42, ensuring that the cutter head 5 is accurately installed on the pad 4 according to the predetermined position and angle, avoiding cutter head skew or positional deviation, thereby ensuring the overall machining accuracy of the tool assembly and improving the dimensional accuracy and surface quality of the machined workpiece. When it is necessary to adjust the position (radial extension) of the cutter head 5, it can be slightly moved to engage the pad retaining teeth 42 at different positions through the cutter head retaining teeth 51, and its position can be precisely adjusted by moving different numbers of retaining teeth.

[0023] In a preferred embodiment, the fixing element 7 is a bolt. The inner surface of the tool mounting groove has a threaded hole matching the bolt. The side surfaces of the pad 4 and the pressure plate 6 both have through holes 8 corresponding to the threaded holes. The side surface of the cutter head 5 has an elongated hole 9 corresponding to the threaded hole. The bolt, as the fixing element 7, mates with the threaded holes on the inner surface of the tool mounting groove, the through holes 8 on the pad 4 and pressure plate 6, and the elongated hole 9 on the cutter head 5, making the installation process more convenient and efficient. During assembly, simply pass the bolt through the through holes and elongated holes on the pressure plate 6, cutter head 5, and pad 4 in sequence, and finally screw it into the threaded hole. A simple tightening operation can secure the pressure plate 6, cutter head 5, and pad 4 together, eliminating the need for complex assembly processes and tools. This improves the assembly efficiency of the tool assembly, shortens the downtime of the machining center due to tool replacement, and helps improve production efficiency.

[0024] Furthermore, the elongated hole 9 on the cutter head 5 provides space for position adjustment within a certain range. In actual machining, different machining tasks have different requirements for the cutting angle, cutting depth, or radial position of the cutter head. The design of the elongated hole 9 allows the cutter head 5 to be adjusted in position after installation by appropriate movement to meet specific machining needs. After adjustment, the cutter head can be fixed in the new position by tightening the bolt. This adjustability enhances the versatility and flexibility of the tool assembly, enabling it to adapt to various machining scenarios and improving the applicability of the machining center. At the same time, after the cutting edge of the cutter head 5 wears, its cutting edge position can be adjusted through the elongated hole 9, moving it outward to meet machining needs, resulting in a longer tool life and lower machining costs.

[0025] Optionally, a secondary cutter head 10 and a pressure plate 6, a pad 4, and a fixing element 7 for fixing the secondary cutter head 10 are provided on the opposite side of the inner side of the tool mounting groove, opposite to the surface where the cutter head 5 is located. With the cutter head 5 and the secondary cutter head 10 respectively on both sides of the tool mounting groove, it is equivalent to using two cutter heads simultaneously for cutting operations in a single clamping and machining process. This allows the machining center to complete more machining operations in a single pass when milling a workpiece, reducing the number of tool changes and the switching time between machining processes, thereby significantly improving machining efficiency and shortening the workpiece machining cycle. This advantage is particularly pronounced when multi-faceted or complex contour machining of the workpiece is required.

[0026] Meanwhile, the secondary cutting head 10 provides the machining center with more machining options and flexibility. Depending on different machining tasks and workpiece shapes, the main cutting head 5 and the secondary cutting head 10 can be used separately or simultaneously for cutting. For example, the main cutting head 5 can be used for roughing, and the secondary cutting head 10 can be used for finishing; or the main cutting head 5 can machine the outer surface of the workpiece, and the secondary cutting head 10 can machine hard-to-reach areas such as internal holes or grooves, thereby enabling the tool assembly to adapt to more diverse machining needs and improving the versatility and applicability of the machining center.

[0027] Please see Figure 5 This utility model also provides another embodiment, which is largely the same as the aforementioned embodiment, except that: the fixing member 7 adopts a fixing pin, the inner surface of the tool mounting groove is provided with a pin hole matching the fixing pin, the side surface of the pad plate 4 and the side surface of the pressure plate 6 are both provided with through holes 8 corresponding to the pin holes, the side surface of the cutter head 5 is provided with an elongated hole 9 corresponding to the pin holes, the side surface of the fixing pin is provided with a screw hole, and the side surface of the milling cutter body 1 is provided with a fixing screw hole corresponding to the fixing pin screw hole, and a fixing bolt 11 is connected to the fixing screw hole by an internal thread. When using the fixing component 7 in this embodiment, the pressure plate 6, the cutter head 5, and the pad 4 are fixed to the inside of the tool mounting groove at one time by the fixing pin. Then, the fixing bolts 11 are screwed into the fixing screw holes on the upper or lower side of the milling cutter body 1 and into the screw holes on the fixing pin, thus completing the fixing of the fixing pin, the pressure plate 6, the cutter head 5, and the pad 4. After the pressure plate 6, the cutter head 5, and the pad 4 are fixed in advance by the fixing pin, multiple milling cutter components can be fixed by simultaneously tightening multiple fixing bolts 11 with several evenly distributed electric screwdrivers in a ring. The fixing is faster and more convenient, improving work efficiency.

[0028] In a preferred embodiment, the end of the fixing bolt 11 is rounded to facilitate quick positioning and insertion of the fixing bolt 11 into the screw hole of the fixing pin.

[0029] The parts not disclosed in this utility model are all prior art, and their specific structures, materials, and working principles will not be described in detail. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An inlaid disc milling cutter assembly for a four-axis linkage machining center, comprising a disc-shaped milling cutter body (1), characterized in that: The milling cutter body (1) has a tool shank connection hole (2) at its center for connecting with the tool shank. Several tool mounting slots are evenly provided on the milling cutter body (1). A replaceable pad (4) is installed on the inner surface of each tool mounting slot. A cutter head (5) is provided on the outer side of the pad (4). A pressure plate (6) is attached to the outer side of the cutter head (5). The pressure plate (6), the cutter head (5) and the pad (4) are fixed in the tool mounting slot from the outside to the inside by a fastener (7).

2. The embedded disc milling cutter assembly for a four-axis linkage machining center according to claim 1, characterized in that: The inner surface of the tool mounting slot is provided with a U-shaped slot (3), and the side surface of the pad (4) is fixedly provided with a locking block (41) corresponding to the slot (3).

3. The embedded disc milling cutter assembly for a four-axis linkage machining center according to claim 1, characterized in that: The side surface of the pad (4) that contacts the cutter head (5) is uniformly provided with a number of pad teeth (42), and the side surface of the cutter head (5) is uniformly provided with a number of cutter head teeth (51) that mesh with the pad teeth (42).

4. The inlaid disc milling cutter assembly for a four-axis linkage machining center according to claim 1, characterized in that: The fastener (7) is a bolt. The inner surface of the tool mounting groove is provided with a screw hole that matches the bolt. The side surface of the pad (4) and the side surface of the pressure plate (6) are provided with through holes (8) corresponding to the screw holes. The side surface of the tool head (5) is provided with an elongated hole (9) corresponding to the screw holes.

5. The inlaid disc milling cutter assembly for a four-axis linkage machining center according to claim 1, characterized in that: The fixing component (7) is a fixing pin. The inner surface of the tool mounting groove is provided with a pin hole that matches the fixing pin. The side surface of the pad (4) and the side surface of the pressure plate (6) are provided with through holes (8) corresponding to the pin holes. The side surface of the cutter head (5) is provided with an elongated hole (9) corresponding to the pin holes. The side surface of the fixing pin is provided with a screw hole, and the side surface of the milling cutter body (1) is provided with a fixing screw hole corresponding to the fixing pin screw hole. The fixing screw hole is internally threaded with a fixing bolt (11).

6. The embedded disc milling cutter assembly for a four-axis linkage machining center according to claim 5, characterized in that: The end of the fixing bolt (11) is rounded.

7. An inlaid disc milling cutter assembly for a four-axis linkage machining center according to any one of claims 1-6, characterized in that: The inner side of the tool mounting groove, opposite to the surface where the tool head (5) is located, is provided with a secondary tool head (10) and a pressure plate (6), a pad (4) and a fixing member (7) for fixing the secondary tool head (10).

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