Aluminum alloy rough milling cutter

Abstract

The utility model discloses an aluminum alloy rough milling cutter, which relates to the technical field of rough milling cutters and comprises a cutter head and a handle part, a cutter shoulder straight blade is arranged at the center of the front end of the cutter head, a plurality of polishing chip grooves are annularly arranged on the periphery of the front end of the cutter head, and a plurality of blade parts are arranged on the periphery of the front end of the cutter head. A plurality of arc-shaped tooth grooves are formed in the joint of every two adjacent blade parts; the clamping structure is installed between the tool bit and the handle part, and the clamping structure is used for achieving the purpose that the tool bit is rapidly disassembled and assembled on the handle part. According to the high-speed machining tool, the machining efficiency is improved while the arc-shaped tooth grooves, namely the arc chip breaker grooves, break long and thin aluminum chips in high-speed machining, and the machining efficiency is remarkably improved due to the special design for aluminum alloy materials; the polishing chip groove is polished by adopting a low-granularity grinding wheel, and the smooth chip groove reduces the friction coefficient of the surface of the chip groove, so that the aluminum chips are quickly discharged, and the blockage of the aluminum chips and the generation of built-up edges of the cutting edge are prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of rough milling cutters, in particular to an aluminum alloy rough milling cutter. Background Art

[0002] Aluminum alloy rough milling cutter is a tool used for machining aluminum alloy materials, usually used to remove the excess part of the material surface to obtain the desired shape and size. This kind of tool usually has a strong blade and appropriate tool geometry to ensure efficient cutting and processing quality. They are usually used on CNC milling machines and other processing equipment to process aluminum alloy parts and components. Aluminum alloy rough milling cutters are widely used in aerospace, automobile manufacturing, mechanical processing and other fields.

[0003] In the field of mechanical processing, customers have higher and higher requirements for processing efficiency, especially for rough processing with high removal rate, and aluminum alloy processing is one of the difficulties. The common tools commonly used on the market have smooth edges and no chip breaking ability, and the processing efficiency is average. The cutting resistance is large, the tool is easy to vibrate, the life is short, and the efficiency is low. For this reason, we have designed an aluminum alloy rough milling cutter to solve the above problems. Summary of the invention

[0004] The utility model aims to solve the shortcomings in the prior art and provides an aluminum alloy rough milling cutter.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An aluminum alloy rough milling cutter comprises a cutter head and a handle, wherein a shoulder straight edge is provided at the center of the front end of the cutter head, a plurality of circumferential polishing chip removal grooves are provided at the periphery of the front end of the cutter head, a plurality of blades are provided at the periphery of the front end of the cutter head, and a plurality of arc-shaped tooth grooves are provided at the connection between each two adjacent blades;

[0007] The clamping structure is installed between the cutter head and the handle, and is used to realize the rapid disassembly and assembly of the cutter head on the handle.

[0008] Preferably, the clamping structure includes two symmetrically arranged plug blocks fixed to one end of the cutter head facing the handle, the vertical cross-sections of the plug blocks are both I-shaped structures, the plug blocks are movably inserted in slots provided at one end of the handle facing the cutter head, and clamping rods are clamped in the clamping grooves provided at the opposite ends of the two plug blocks, the clamping ends of the clamping rods are both provided with inclined surfaces a, and the two clamping rods slide in the movable channels provided on the inner side of the handle.

[0009] Preferably, a spring b is connected between the opposite ends of the two clamping rods, and the spring b is located in the moving channel. A pressing channel is penetrated through the two clamping rods, and the vertical cross-section of the pressing channel is a right-angle trapezoidal structure.

[0010] Preferably, the same C-shaped block is movably overlapped on the inner inclined walls of the two pressing channels, and both ends of the C-shaped block away from the handle are provided with inclined surfaces b movably overlapped on the inclined walls, the C-shaped block slides in the movable cavity provided on the inner side of the handle, and the inner side of the handle is also provided with movable channels cooperating with the two ends of the C-shaped block.

[0011] Preferably, the side of the C-shaped clamping block facing away from the movable channel is connected to the inner wall of the movable cavity through two springs a, and a pressing rod fixed to the outer side of the C-shaped clamping block is provided between the two springs a. The end of the pressing rod facing away from the C-shaped clamping block movably extends into the groove provided at the tail end of the handle and is fixedly connected to a pressing block.

[0012] Preferably, a screw is threadedly connected to the edge of the pressing block, and one end of the screw, after being locked, presses against the inner wall of the groove.

[0013] Compared with the prior art, the utility model has the following beneficial effects: in the utility model, the arc-shaped tooth groove, i.e., the arc chip breaker groove, breaks the slender aluminum chips in high-speed processing while improving the processing efficiency, and is specially designed for aluminum alloy materials, which significantly improves the processing efficiency; the polished chip groove is polished by a low-grained grinding wheel, and the smooth chip groove reduces the friction coefficient of the chip groove surface, so that the aluminum chips are quickly discharged, and the aluminum chips are prevented from being blocked and the generation of built-up edge on the cutting edge;

[0014] The clamping structure can facilitate quick assembly and disassembly between the cutter head and the handle. Especially when the cutter head is damaged, there is no need to replace the rough milling cutter as a whole. Only the cutter head needs to be disassembled and replaced, which greatly reduces the cost of replacement. The structure is simple when disassembling or removing the cutter head, and it is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the partial development structure of the front end of an aluminum alloy rough milling cutter proposed by the utility model;

[0016] Figure 2 This is a schematic diagram of the front end planar structure of a cutter head of an aluminum alloy rough milling cutter proposed by the utility model;

[0017] Figure 3 This is a schematic diagram of the overall planar structure of a cutter head and a shank of an aluminum alloy rough milling cutter proposed by the utility model;

[0018] Figure 4 This is a schematic diagram of the enlarged structure of the aluminum alloy rough milling cutter at position A proposed by the utility model;

[0019] Figure 5 This is a schematic diagram of the vertical section of the insert block of an aluminum alloy rough milling cutter proposed by the utility model;

[0020] Figure 6This is a schematic diagram of the enlarged structure of position B of an aluminum alloy rough milling cutter proposed by the utility model.

[0021] In the figure: 1. straight blade shoulder; 2. arc-shaped tooth groove; 3. polishing chip groove; 4. blade; 41. cutter head; 42. insert block; 5. clamping structure; 51. C-type clamping block; 52. pressing rod; 521. pressing block; 522. screw; 523. groove; 53. spring a; 54. clamping rod; 541. pressure channel; 542. clamping groove; 55. movable channel; 56. spring b; 6. handle. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects of the utility model easy to understand, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments.

[0023] Example

[0024] The common cutting tools currently on the market have smooth cutting edges, no chip breaking ability, and average processing efficiency. They have large cutting resistance, are prone to tool vibration, have a short life span, and are inefficient.

[0025] Reference Figure 1-6 A rough milling cutter for aluminum alloy, comprising a cutter head 41 and a shank 6, a cutter shoulder straight edge 1 is provided at the center of the front end of the cutter head 41, a plurality of circumferential polishing chip removal grooves 3 are provided at the periphery of the front end of the cutter head 41, a plurality of blades 4 are provided at the periphery of the front end of the cutter head 41, and a plurality of arc-shaped tooth grooves 2 are provided at the connection between each two adjacent blades 4;

[0026] The clamping structure 5 is installed between the cutter head 41 and the handle 6 . The clamping structure 5 is used to realize the quick disassembly and assembly of the cutter head 41 on the handle 6 .

[0027] The width of the tooth tip formed between each two adjacent arc-shaped tooth grooves 2 is greater than the width of the arc-shaped tooth grooves 2, which greatly improves the blade strength and prevents chipping during high-speed processing; the rough milling cutter adopts a new coating as a whole, which significantly improves the tool life. The DLC diamond-like coating technology with high hardness, low friction coefficient, wear resistance and other characteristics can be used for dry processing of aluminum alloys, and it is not easy to produce chipping during processing.

[0028] In the present embodiment, in order to facilitate the assembly or disassembly between the cutter head 41 and the handle 6, a clamping structure 5 is provided, which includes two symmetrically arranged plug blocks 42 fixedly connected to one end of the cutter head 41 facing the handle 6. The vertical cross-sections of the plug blocks 42 are all I-shaped structures. The plug blocks 42 are all movably inserted in the slots provided at the end of the handle 6 facing the cutter head 41. The two plug blocks 42 are provided with clamping rods 54 in the clamping grooves 542 provided at the opposite ends of the two plug blocks 42. The clamping ends of the clamping rods 54 are provided with inclined surfaces a. The two clamping rods 54 slide in the moving channels provided on the inner side of the handle 6. A spring b56 is connected between the opposite ends of the two clamping rods 54. The spring b56 is located in the moving channel. A pressing channel 541 is provided through the clamping rod 54, and the vertical section of the pressing channel 541 is a right-angled trapezoidal structure. The same C-shaped clamping block 51 is movably overlapped on the inner inclined walls of the two pressing channels 541. Both ends of the C-shaped clamping block 51 away from the handle 6 are provided with inclined surfaces b movably overlapped on the inclined walls. The C-shaped clamping block 51 slides in the movable cavity provided on the inner side of the handle 6. The inner side of the handle 6 is also provided with movable channels 55 that cooperate with the two ends of the C-shaped clamping block 51. The side of the C-shaped clamping block 51 away from the movable channel 55 is connected to the inner wall of the movable cavity through two springs a53, and a pressing rod 52 fixed to the outer side of the C-shaped clamping block 51 is provided between the two springs a53.

[0029] Among them, the function of the inclined surface b is to manually press the pressing rod 52, so that the two inclined surfaces b of the C-shaped block 51 respectively press against the inner inclined walls of the two pressing channels 541, so that the two clamping rods 54 move relative to each other, causing the spring b56 to be compressed, and the ends of the inclined surfaces a of the two clamping rods 54 that are away from each other can respectively disengage from the clamping grooves 542 on their plug-in blocks 42.

[0030] In this embodiment, the end of the pressing rod 52 away from the C-shaped block 51 is movably extended to the groove 523 provided at the tail end of the handle 6, and is fixedly connected to the pressing block 521. A screw 522 is threadedly penetrated at the edge of the pressing block 521, and one end of the screw 522 after being locked is pressed against the inner wall of the groove 523.

[0031] The purpose of locking the screw 522 is to prevent the pressing block 521 from pressing the pressing rod 52 and thus prevent the blade head 41 from loosening.

[0032] Embodiment: When the aluminum alloy rough milling cutter is used, the arc tooth groove 2, i.e., the arc chip breaker groove, breaks the slender aluminum chips in high-speed machining while improving the machining efficiency. The special design for aluminum alloy material significantly improves the machining efficiency. The polished chip groove 3 is polished by a low-grained grinding wheel. The smooth chip groove reduces the friction coefficient of the chip groove surface, allowing the aluminum chips to be discharged quickly, preventing aluminum chips from clogging and the generation of built-up edge. When the damaged cutter head 41 needs to be replaced, the screw 522 can be loosened and the pressing block 52 can be manually pressed. 1 is manually pressed into the groove 523, and at the same time, the two springs a53 are stretched, and the two inclined surfaces b of the C-shaped clamping block 51 are urged to press against the inner inclined walls of the two pressing channels 541 respectively, so that the two clamping rods 54 move toward each other, and the spring b56 is compressed, so that the inclined surfaces a of the two clamping rods 54 that are separated from each other can be separated from the clamping grooves 542 on the inserting blocks 42 respectively, so that the two inserting blocks 42 on the cutter head 41 can be pulled out of the slots respectively, so as to achieve the purpose of facilitating the removal of the cutter head 41 for replacement.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0035] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above embodiments. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of protection claimed by the utility model. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An aluminum alloy rough milling cutter, comprising a cutter head (41) and a shank (6), characterized in that: A shoulder straight blade (1) is provided at the center of the front end of the cutter head (41); a plurality of circumferential polishing chip removal grooves (3) are provided at the periphery of the front end of the cutter head (41); a plurality of blade portions (4) are provided at the periphery of the front end of the cutter head (41); and a plurality of arc-shaped tooth grooves (2) are provided at the connection between each two adjacent blade portions (4); The clamping structure (5) is installed between the cutter head (41) and the handle (6), and the clamping structure (5) is used to realize the rapid disassembly and assembly of the cutter head (41) on the handle (6).

2. The aluminum alloy rough milling cutter according to claim 1, characterized in that: The clamping structure (5) comprises two symmetrically arranged plug blocks (42) fixedly connected to one end of the cutter head (41) facing the handle (6), the vertical cross-sections of the plug blocks (42) are both I-shaped structures, the plug blocks (42) are both movably inserted into slots provided at one end of the handle (6) facing the cutter head (41), the clamping grooves (542) provided at the opposite ends of the two plug blocks (42) are both clamped with clamping rods (54), the clamping ends of the clamping rods (54) are both provided with inclined surfaces a, and the two clamping rods (54) are both slidable in the moving channels provided on the inner side of the handle (6).

3. The aluminum alloy rough milling cutter according to claim 2, characterized in that: A spring b (56) is connected between the opposite ends of the two clamping rods (54), and the spring b (56) is located in the moving channel. A pressing channel (541) is provided through the two clamping rods (54), and the vertical cross-section of the pressing channel (541) is a right-angle trapezoidal structure.

4. The aluminum alloy rough milling cutter according to claim 3, characterized in that: The inner inclined walls of the two pressing channels (541) are both movably overlapped with the same C-shaped clamping block (51), and both ends of the C-shaped clamping block (51) away from the handle (6) are provided with inclined surfaces b movably overlapped with the inclined walls. The C-shaped clamping block (51) slides in a movable cavity provided on the inner side of the handle (6), and the inner side of the handle (6) is also provided with movable channels (55) cooperating with the two ends of the C-shaped clamping block (51).

5. The aluminum alloy rough milling cutter according to claim 4, characterized in that: The side of the C-shaped clamping block (51) facing away from the movable channel (55) is connected to the inner wall of the movable cavity via two springs a (53); a pressing rod (52) fixedly connected to the outer side of the C-shaped clamping block (51) is provided between the two springs a (53); one end of the pressing rod (52) facing away from the C-shaped clamping block (51) movably extends into a groove (523) provided at the rear end of the handle (6) and is fixedly connected to the pressing block (521).

6. The aluminum alloy rough milling cutter according to claim 5, characterized in that: A screw (522) is threadedly connected to the edge of the pressing block (521), and one end of the screw (522) is pressed against the inner wall of the groove (523) after being locked.

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