Complex conical surface machining and forming cutter

Abstract

The utility model discloses a complex conical surface machining and forming cutter which comprises a cutter body, a first cutter head is arranged at one end of the cutter body, a second cutter head is arranged at the other end of the first cutter head, the first cutter head is conical, the second cutter head is cylindrical, and the maximum outer diameter of the first cutter head is larger than the outer diameter of the second cutter head. A first blade is arranged on the outer conical surface of the first tool bit and is laid in the axial direction of the conical surface; a second blade and a guide strip are arranged on the outer circle face of the second tool bit, and the guide strip is laid in the axial direction of the outer circle face. The utility model solves the problems of processing cost increase and low efficiency caused by complex processing structure and long processing time of the special special-shaped curved surface of the new energy automobile part, meets the special requirement of the product surface, and meets the specific range of difficult processing and high requirement of the new energy automobile part.

Description

Technical Field

[0001] The utility model relates to a tool, in particular to a tool for machining and forming a complex cone surface. Background Art

[0002] The special irregular surface processing of new energy vehicle accessories requires a large diameter tool and deep cavity processing. It is required that there is no obvious tool mark, no tool chatter, and no obvious joint marks where the curves meet. The shape is irregular, and the large diameter 70 hole and the bottom 32 hole have transition bevels and arc surfaces, which are prone to tool chatter and tool joint marks, and the processing difficulty coefficient is high.

[0003] The existing cutting tools are spliced ​​cutting tools, which still vibrate during processing and the processing size is unstable. If the rough and fine cutting tools are spliced, the processing effect is very poor and the vibrating phenomenon cannot be improved. Utility Model Content

[0004] In order to solve the defects of the above-mentioned prior art, the utility model provides a complex conical surface processing and forming tool. The utility model solves the problems of complex structure and long processing time caused by the special special-shaped curved surface processing structure of new energy vehicle accessories and increased processing cost and low efficiency, meets the special requirements of the product surface, and meets the specific scope of difficult and high processing requirements of new energy vehicle accessories.

[0005] In order to achieve the above technical objectives, the utility model adopts the following technical solutions: a complex conical surface processing forming tool, comprising a tool body, a first tool head is arranged at one end of the tool body, a second tool head is arranged at the other end of the first tool head, the first tool head is conical, the second tool head is cylindrical, and the maximum outer diameter of the first tool head is greater than the outer diameter of the second tool head;

[0006] The outer conical surface of the first cutter head is provided with a first blade, and the first blade is laid along the axial direction of the conical surface; the outer cylindrical surface of the second cutter head is provided with a second blade and a guide bar, and the guide bar is laid along the axial direction of the outer cylindrical surface.

[0007] Furthermore, the outer conical surface of the first cutter head is provided with a first chip removal groove, and the outer cylindrical surface of the second cutter head is provided with a second chip removal groove.

[0008] Furthermore, the first blade is Z-shaped, and the Z-shape has a continuous first surface, a large bevel surface, and a second surface. The first surface is a working surface for processing large holes of products, the large bevel surface is a working surface for processing the inclined surface of products, and the second surface is a working surface for processing the connection between small holes and the inclined surface; the working surface of the second blade is used for processing small holes; the first blade and the second blade can work simultaneously.

[0009] Furthermore, the number of the first blades is 2, and the number of the second blades is 4.

[0010] Furthermore, the length of the guide bar is much greater than the length of the second blade, and the guide bar is located between the first blade and the second blade.

[0011] Furthermore, a conical shaft is provided at the other end of the cutter body.

[0012] In summary, the utility model has achieved the following technical effects:

[0013] The utility model adopts an integrated composite tool, all processing features are combined together, the length of the tool body is extended, the tool and the processed parts are not separated during the entire processing process, and the problems of tool letting and resonance are solved;

[0014] The utility model allows the processing of small holes at the same time as the processing of large holes, and the upper and lower parts of the processing tool are in contact with each other at the same time during processing, which can solve the resonance caused by the tool letting go and eliminate the processing vibration problem;

[0015] The utility model solves the processing problem and is implemented, and the processing beat is also improved. The original overall processing beat of 14'45" in the early stage is now completed in only 10'15 seconds. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of a complex cone surface processing tool provided by an embodiment of the utility model;

[0017] Figure 2 yes Figure 1 Schematic diagram from another angle;

[0018] Figure 3 yes Figure 1 Left view of

[0019] Figure 4 yes Figure 1 Left view of

[0020] Figure 5 It is a product schematic diagram;

[0021] Figure 6 This is a schematic diagram of the first step of processing;

[0022] Figure 7 This is a schematic diagram of the second step of processing;

[0023] Figure 8 This is a schematic diagram of the third step of processing. DETAILED DESCRIPTION

[0024] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0025] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0026] 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", "axial", "radial", "circumferential" 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.

[0027] 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.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0030] Example:

[0031] like Figure 1 As shown, a complex conical surface processing and forming tool includes a tool body 2, one end of the tool body 2 is provided with a first tool head 3, the other end of the tool body 2 is provided with a tapered shank 1 for connecting to the spindle part of the machining center, the other end of the first tool head 3 is provided with a second tool head 4, the first tool head 3 is conical, the second tool head 4 is cylindrical, and the maximum outer diameter of the first tool head 3 is greater than the outer diameter of the second tool head 4.

[0032] Figure 2 yes Figure 1 Another angle diagram, Figure 3 yes Figure 1 The left view of Figure 4 yes Figure 1 As shown in the left view, the outer conical surface of the first cutter head 3 is provided with a first blade 5, the outer cylindrical surface of the second cutter head 4 is provided with a second blade 7 and a guide bar 8, and the guide bar 8 is laid along the axial direction of the outer cylindrical surface. Figure 5 This is a schematic diagram of the product. What needs to be processed are the large hole with a diameter of L2, the small hole with a diameter of L3, and the inclined surface between the large hole and the small hole.

[0033] The first blade 5 is laid along the axial direction of the cone surface. The first blade 5 is Z-shaped. The Z-shaped surface has a continuous first surface, a large inclined surface, and a second surface. The first surface is a working surface for processing large holes of products, the large inclined surface is a working surface for processing the inclined surface of products, and the second surface is a working surface for processing the connection between small holes and the inclined surface; the working surface of the second blade 7 is used to process small holes; the first surface of the first blade 5 contacts the large hole, and at the same time, the working surface of the second blade 7 contacts the small hole. The first blade 5 and the second blade 7 can work at the same time, so that the large hole and the small hole are processed at the same time, solving the resonance caused by the tool letting go and eliminating the problem of processing vibration. During the entire processing process, the tool and the processed part do not separate, solving the problem of tool letting go and resonance.

[0034] The outer conical surface of the first cutter head 3 is provided with a first chip removal groove 6, and the outer cylindrical surface of the second cutter head 4 is provided with a second chip removal groove 9. The first chip removal groove 6 and the second chip removal groove 9 are used for chip removal.

[0035] The number of the first blades 5 is 2 and they are evenly distributed, and the number of the second blades 7 is 4 and they are evenly distributed. The first blade 5 is a cutting edge used for processing large holes and bevel positions, which is also the position where the tool chattering occurs. Currently, PCD material is used, and the overall contour structure is made according to the shape of the part. The second blade 7 is a cutting edge used for processing small holes.

[0036] The length of the guide bar 8 is much greater than that of the second blade 7. The guide bar 8 is located between the first blade 5 and the second blade 7 and is used to support the hole wall to eliminate vibration. The guide bar 8 plays a supporting role to prevent the blade from slipping.

[0037] like Figure 6 , Figure 7 , Figure 8 The processing steps are shown:

[0038] When the large hole L2 is processed, the small hole L3 at the bottom is processed at the same time. When processing, the upper and lower parts are in contact with the processing tool at the same time, which can solve the resonance caused by the tool letting and eliminate the problem of processing vibration: in this embodiment, the large hole L2 is the mouth D70 hole, and the small hole L3 is the bottom 31.5 hole;

[0039] Step 1: The D70 hole at the mouth and the 31.5 hole at the bottom are in contact with each other at the same time;

[0040] Step 2: The processing depth continues to decrease. With the support of the guide bar, there will be no tool vibration when processing the upper and lower holes;

[0041] Step 3: When the tool's large bevel is processed onto the inclined surface of the workpiece, the resistance and torque reach their maximum, which will produce huge vibrations. However, because the D31.5 size of the tool is lengthened and supported by guide strips, the vibrations are eliminated, solving the problem of tool vibrations.

[0042] The above description is only a preferred implementation mode of the present invention, and does not limit the present invention in any form. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are within the scope of the technical solution of the present invention.

Claims

1. A complex conical surface machining tool, comprising a tool body (2), characterized in that: A first cutter head (3) is arranged at one end of the cutter body (2), and a second cutter head (4) is arranged at the other end of the first cutter head (3); the first cutter head (3) is conical, the second cutter head (4) is cylindrical, and the maximum outer diameter of the first cutter head (3) is greater than the outer diameter of the second cutter head (4); The outer conical surface of the first cutter head (3) is provided with a first blade (5), and the first blade (5) is laid along the axial direction of the conical surface; the outer cylindrical surface of the second cutter head (4) is provided with a second blade (7) and a guide bar (8), and the guide bar (8) is laid along the axial direction of the outer cylindrical surface.

2. A complex conical surface machining tool according to claim 1, characterized in that: The outer conical surface of the first cutter head (3) is provided with a first chip removal groove (6), and the outer cylindrical surface of the second cutter head (4) is provided with a second chip removal groove (9).

3. A complex conical surface machining tool according to claim 1, characterized in that: The first blade (5) is Z-shaped, and the Z-shape has a continuous first surface, a large inclined surface, and a second surface. The first surface is a working surface used for processing large holes of products, the large inclined surface is a working surface used for processing the inclined surface of products, and the second surface is a working surface used for processing the connection between small holes and the inclined surface; the working surface of the second blade (7) is used for processing small holes; the first blade (5) and the second blade (7) can work simultaneously.

4. A complex conical surface machining tool according to claim 1, characterized in that: The number of the first blades (5) is 2, and the number of the second blades (7) is 4.

5. The complex conical surface machining tool according to claim 1, characterized in that: The length of the guide bar (8) is much greater than the length of the second blade (7), and the guide bar (8) is located between the first blade (5) and the second blade (7).

6. A complex conical surface machining tool according to claim 1, characterized in that: The other end of the cutter body (2) is provided with a conical shaft (1).

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