Aluminum milling cutter with light-weight cutter body structure

Abstract

The utility model discloses a kind of aluminium milling cutter of lightweight tool body structure, including support seat, guide hole, supporting cylinder, aluminium milling cutter and reciprocating feed mechanism, guide hole is set in support seat top through penetration.This utility model has the beneficial effect that: in the utility model, through the linkage design of crankshaft, connecting rod and screw rod in adjusting unit, the change of the position of clamp block in adjusting rod is realized by the rotation of screw rod, and then the connecting point position between adjusting rod, push-pull rod is adjusted, the accurate adjustment of aluminium milling cutter reciprocating stroke is realized, this structure is adapted to different aluminium alloy workpiece thickness, optimizes cutting parameter matching, reduces burr generation and improves hole wall smoothness, and screw rod adjustment supports quick stroke switching, avoids frequent tool replacement or adjustment equipment parameter, this patent is coupled with crankshaft and screw rod coupling mechanism, dynamic stroke adjustment is combined with lightweight tool body for the first time, fills in the technical blank of self-adapting cutting in aluminium alloy precision machining field.

Description

Technical Field

[0001] This utility model relates to an aluminum end mill, specifically an aluminum end mill with a lightweight cutter body structure, belonging to the technical field of aluminum end mills. Background Technology

[0002] Aluminum end mills are cutting tools designed specifically for the characteristics of aluminum alloys. They are made of materials such as cemented carbide and diamond and are used for precision machining of planes, slots, and holes. Their lightweight design can adapt to high speed and large feed requirements, reducing cutting forces and the risk of thermal deformation. In the field of aluminum alloy machining, the lightweight cutter body structure of aluminum end mills aims to solve the machining limitations caused by the fixed reciprocating stroke of traditional end mills.

[0003] However, most existing aluminum end mills have various problems. For example, in the aluminum end mill disclosed in publication number CN218487293U, although it can reduce the fluctuations generated during cutting operations to improve the stability of cutting operations, and at the same time, it can also avoid chipping when cutting in a straight line, thus reducing the risk of chipping and improving the working efficiency and service life of the end mill, in this technical solution and most current aluminum end mills, in order to eliminate burrs and ensure surface smoothness during machining, a reciprocating structure is mostly used to drive the end mill to perform a fixed stroke reciprocating motion. However, due to the differences in wall thickness and complex geometric features of aluminum alloy workpieces, a single stroke cannot meet the diverse cutting needs, and when the stroke cannot be dynamically adjusted, frequent tool changes or parameter adjustments are required, increasing downtime and tool wear, which seriously affects work efficiency. Utility Model Content

[0004] This utility model provides a solution that is significantly different from existing technologies, addressing the problem that existing technologies are too simplistic. Specifically, the purpose of this utility model is to solve the aforementioned shortcomings of existing technologies by proposing a lightweight end mill for aluminum with a lightweight cutter body structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A lightweight end mill for aluminum includes a support base, a guide hole, a support cylinder, an aluminum end mill, and a reciprocating feed mechanism. The guide hole is disposed through the top of the support base, the support cylinder is slidably engaged in the guide hole, and the aluminum end mill is coaxially disposed on the support cylinder and protrudes from the support base.

[0007] The reciprocating feed mechanism is mounted on a support base and includes a crankshaft, connecting rod, push-pull rod, and adjustment unit. The crankshaft is rotatably connected to one side of the support base and is connected to an external drive device. One end of the connecting rod and the push-pull rod are rotatably connected to each other, the other end of the connecting rod is rotatably connected to the crankshaft, and the other end of the push-pull rod is rotatably connected to the bottom of the support cylinder. The adjustment unit is located between the connecting rod and the push-pull rod.

[0008] As a further embodiment of this utility model: the adjustment unit includes a limiting seat, an adjusting rod, and a locking block. The limiting seat, which has an arc-shaped structure, is fixed to one side of the support base, and an arc-shaped groove is provided through the limiting seat. The locking block is slidably engaged in the arc-shaped groove and rotatably connected to one end of the adjusting rod. The other end of the adjusting rod is rotatably connected to the connection between the connecting rod and the push-pull rod.

[0009] As a further embodiment of this utility model: the adjustment unit further includes a transmission rod, a drive bevel gear, and a support seat. The transmission rod is rotatably connected to one side of the top of the support seat, the drive bevel gear is coaxially fixed on the transmission rod, and one end of the support seat is rotatably connected to the transmission rod.

[0010] As a further embodiment of this utility model: the adjustment unit further includes a driven rod, a driven bevel gear, and a lead screw. The driven rod is rotatably connected to the support base. The driven bevel gear is coaxially fixed to one end of the driven rod and meshes with the driving bevel gear. The lead screw is coaxially fixed to the other end of the driven rod. The adjustment rod and the locking block are rotatably connected by a shaft. A threaded hole is provided through the shaft, and the lead screw is threaded into the threaded hole.

[0011] As a further embodiment of this utility model: the two sides of the card block are provided with protruding plates, which are combined as a whole to form an "I" shaped structure, and the card block is limited and engaged in the arc-shaped groove of the limiting seat by the protruding plates.

[0012] As a further improvement of this utility model, the aluminum milling cutter is made of lightweight material and has a cylindrical structure.

[0013] The beneficial effects of this utility model are:

[0014] This invention utilizes a linkage design between the crankshaft, connecting rod, and lead screw in the adjustment unit. The rotation of the lead screw alters the position of the locking block within the adjustment rod, which in turn adjusts the connection point between the connecting rod and the push-pull rod, enabling precise adjustment of the reciprocating stroke of the aluminum milling cutter. This structure adapts to different aluminum alloy workpiece thicknesses, optimizes cutting parameter matching, reduces burr formation, and improves hole wall smoothness. Furthermore, the lead screw adjustment supports rapid stroke switching, avoiding frequent tool changes or equipment parameter adjustments. This patent, through a crankshaft-lead screw coupling mechanism, is the first to combine dynamic stroke adjustment with a lightweight tool body, filling a technological gap in adaptive cutting within the field of precision aluminum alloy machining. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the reciprocating feed mechanism of this utility model;

[0017] Figure 3 This is a schematic diagram of the push-pull rod and its overall connection structure of the present invention;

[0018] Figure 4 This is a schematic diagram of the support connection structure of this utility model.

[0019] In the diagram: 1. Support base, 2. Guide hole, 3. Support cylinder, 4. Aluminum milling cutter, 5. Reciprocating feed mechanism, 51. Crankshaft, 52. Connecting rod, 53. Push-pull rod, 54. Limit seat, 55. Adjusting rod, 56. Locking block, 57. Transmission rod, 58. Drive bevel gear, 59. Support base, 510. Driven rod, 511. Driven bevel gear, 512. Lead screw. Detailed Implementation

[0020] 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. Example 1

[0021] like Figures 1 to 4 As shown, a lightweight end mill for aluminum includes a support base 1, a guide hole 2, a support cylinder 3, an aluminum end mill 4, and a reciprocating feed mechanism 5. The guide hole 2 is disposed through the top of the support base 1, the support cylinder 3 is slidably engaged in the guide hole 2, and the aluminum end mill 4 is coaxially disposed on the support cylinder 3 and protrudes from the support base 1.

[0022] The reciprocating feed mechanism 5 is mounted on the support base 1, and the reciprocating feed mechanism 5 includes a crankshaft 51, a connecting rod 52, a push-pull rod 53 and an adjustment unit. The crankshaft 51 is rotatably connected to one side of the support base 1 and is connected to an external drive device. One end of the connecting rod 52 and the push-pull rod 53 are rotatably connected to each other, the other end of the connecting rod 52 is rotatably connected to the crankshaft 51, and the other end of the push-pull rod 53 is rotatably connected to the bottom of the support cylinder 3. The adjustment unit is located between the connecting rod 52 and the push-pull rod 53.

[0023] The adjustment unit includes a limiting seat 54, an adjusting rod 55, and a locking block 56. The arc-shaped limiting seat 54 is fixed on one side of the support seat 1, and an arc-shaped slot is provided through the limiting seat 54. The locking block 56 is slidably engaged in the arc-shaped slot and rotatably connected to one end of the adjusting rod 55. The other end of the adjusting rod 55 is rotatably connected to the connection between the connecting rod 52 and the push-pull rod 53.

[0024] The adjustment unit also includes a transmission rod 57, a drive bevel gear 58, and a support 59. The transmission rod 57 is rotatably connected to one side of the top of the support 1, the drive bevel gear 58 is coaxially fixed on the transmission rod 57, and one end of the support 59 is rotatably connected to the transmission rod 57.

[0025] The adjustment unit also includes a driven rod 510, a driven bevel gear 511, and a lead screw 512. The driven rod 510 is rotatably connected to the support 59. The driven bevel gear 511 is coaxially fixed to one end of the driven rod 510 and meshes with the driving bevel gear 58. The lead screw 512 is coaxially fixed to the other end of the driven rod 510. The adjustment rod 55 and the locking block 56 are rotatably connected by a shaft. A threaded hole is provided through the shaft, and the lead screw 512 is threaded into the threaded hole.

[0026] In this invention, the linkage design of crankshaft 51, connecting rod 52 and lead screw 512 in the adjustment unit changes the position of the locking block 56 within the adjustment rod 55 by rotating the lead screw 512. This, in turn, adjusts the connection point between connecting rod 52 and push-pull rod 53 via the adjustment rod 55, achieving precise adjustment of the reciprocating stroke of the aluminum milling cutter 4. This structure is adaptable to different aluminum alloy workpiece thicknesses, optimizes cutting parameter matching, reduces burr generation, and improves hole wall smoothness. Furthermore, the lead screw 512 adjustment supports rapid stroke switching, avoiding frequent tool changes or equipment parameter adjustments. This patent, through the crankshaft and lead screw coupling mechanism, is the first to combine dynamic stroke adjustment with a lightweight tool body, filling the technological gap in adaptive cutting in the field of precision aluminum alloy machining. Example 2

[0027] like Figures 1 to 4 As shown, in addition to all the technical features included in Embodiment 1, this embodiment also includes:

[0028] The two sides of the locking block 56 are provided with protruding plates, which are combined to form an "I" shaped structure. The locking block 56 is locked in the arc-shaped groove of the limiting seat 54 by the protruding plates. The protruding plates limit the locking block 56 and prevent it from slipping out.

[0029] The aluminum milling cutter 4 is made of lightweight materials and has a cylindrical structure. The lightweight design reduces the moment of inertia, reduces stress concentration caused by vibration, and improves the machining stability of thin-walled parts.

[0030] Working principle: When using this aluminum milling cutter, the crankshaft 51 is driven by an external drive device, and the support cylinder 3 and the aluminum milling cutter 4 are driven by the connecting rod 52 and the push-pull rod 53 to perform reciprocating feed motion, so as to realize the milling operation of the workpiece. When it is necessary to adjust the reciprocating stroke, the transmission rod 57 is rotated to drive the drive bevel gear 58 to rotate. At this time, the driven bevel gear 511 is engaged and linked, and the lead screw 512 is driven by the driven rod 510 to drive the threaded linkage, so that the shaft of the locking block 56 is threaded and linked, thereby driving the locking block 56 to slide in the arc-shaped groove of the limit seat 54. The position of the connection between the connecting rod 52 and the push-pull rod 53 can be adjusted by the adjusting rod 55.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A lightweight end mill for aluminum, comprising a support base (1), a guide hole (2), a support cylinder (3), an aluminum end mill (4), and a reciprocating feed mechanism (5), characterized in that, The guide hole (2) is provided through the top of the support base (1), the support cylinder (3) is slidably engaged in the guide hole (2), and the aluminum milling cutter (4) is coaxially provided on the support cylinder (3) and protrudes from the support base (1). The reciprocating feed mechanism (5) is mounted on the support base (1), and the reciprocating feed mechanism (5) includes a crankshaft (51), a connecting rod (52), a push-pull rod (53) and an adjustment unit. The crankshaft (51) is rotatably connected to one side of the support base (1), and the crankshaft (51) is connected to an external drive device. One end of the connecting rod (52) and the push-pull rod (53) are rotatably connected to each other. The other end of the connecting rod (52) is rotatably connected to the crankshaft (51). The other end of the push-pull rod (53) is rotatably connected to the bottom of the support cylinder (3). The adjustment unit is located between the connecting rod (52) and the push-pull rod (53).

2. The lightweight end mill for aluminum according to claim 1, characterized in that: The adjustment unit includes a limiting seat (54), an adjusting rod (55), and a locking block (56). The limiting seat (54) with an arc-shaped structure is fixed on one side of the support base (1), and an arc-shaped slot is provided through the limiting seat (54). The locking block (56) is slidably locked in the arc-shaped slot and rotatably connected to one end of the adjusting rod (55). The other end of the adjusting rod (55) is rotatably connected to the connection between the connecting rod (52) and the push-pull rod (53).

3. The lightweight end mill for aluminum according to claim 2, characterized in that: The adjustment unit also includes a transmission rod (57), an active bevel gear (58), and a support (59). The transmission rod (57) is rotatably connected to one side of the top of the support (1). The active bevel gear (58) is coaxially fixed on the transmission rod (57). One end of the support (59) is rotatably connected to the transmission rod (57).

4. The lightweight end mill for aluminum with a specific cutter body structure according to claim 3, characterized in that: The adjustment unit also includes a driven rod (510), a driven bevel gear (511), and a lead screw (512). The driven rod (510) is rotatably connected to the support (59). The driven bevel gear (511) is coaxially fixed to one end of the driven rod (510) and meshes with the driving bevel gear (58). The lead screw (512) is coaxially fixed to the other end of the driven rod (510). The adjustment rod (55) and the locking block (56) are rotatably connected by a shaft. A threaded hole is provided through the shaft, and the lead screw (512) is threaded into the threaded hole.

5. The lightweight end mill for aluminum according to claim 4, characterized in that: The card block (56) has protruding plates on both sides, which are combined to form an "I" shaped structure. The card block (56) is limited and locked in the arc-shaped groove of the limiting seat (54) by the protruding plates.

6. The lightweight end mill for aluminum according to claim 1, characterized in that: The aluminum milling cutter (4) is made of lightweight material and has a cylindrical structure.

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