Chamfering tool rest with wire breaking function

Abstract

The chamfering tool rest with the wire breaking function comprises a tool handle, a tool bit, an inner angle tool apron, an outer angle tool apron and an end face tool apron, and the tool handle, the tool bit and the inner angle tool apron are sequentially arranged in the axial direction. Inner angle blades are axially locked on the two sides of the inner angle tool apron, and an included angle alpha is formed between the cutting edge of each inner angle blade and the axis of the tool bit; a pair of axially symmetrical mounting grooves are formed in the two sides of the tool bit, the external angle tool apron is detachably fixed in one mounting groove, the end face tool apron is detachably fixed in the other mounting groove, an external angle blade is locked and fixed on the external angle tool apron, an end face blade is locked and fixed on the end face tool apron, and the cutting surfaces of the external angle blade and the end face blade are on the same plane as the axis of the tool bit. The cutting edge of the external angle blade and the axis of the tool bit form an included angle beta, and the cutting edge of the end face blade is perpendicular to the axis of the tool bit. According to the tool bit structure, the three branch tool rests which are arranged in a scattered mode are combined to form the tool bit structure, and installation and replacement are convenient; the inner angle cutter adopts a double-cutter structure, so that the cutting thickness is reduced, and the smoothness of a cutting surface can be improved.

Description

Technical Field

[0001] The utility model relates to the field of tool manufacturing, in particular to a chamfering tool holder with a wire breaking function. Background Art

[0002] The existing quick chamfering tool holder is a special milling chamfering tool holder for round tubes designed and customized by chamfering machine manufacturers. Three customized split tool holders need to be installed on a rotating wheel surface. When advancing, the inner wall, end face, and outer wall of the round tube are cut simultaneously, and the processing of three parts is completed in one feed.

[0003] However, the existing technology still has the following defects and deficiencies:

[0004] 1. When feeding, the cutting part of the inner corner cutting edge and the thickness of the chip are fixed, and the chip is not easy to break and is easy to wind around the tool head;

[0005] 2. Three split tool holders are installed on a large rotating wheel surface, blocking the retreat path of the chip, and greatly increasing the probability of winding around the tool head;

[0006] 3. The chip winding around the tool head is very easy to scratch the inner wall of the steel pipe, causing abrasion of the air seal parts or failure of the air seal parts during product assembly, resulting in product scrapping. Content of the Utility Model

[0007] The purpose of the utility model is to provide a chamfering tool holder with a wire breaking function, which makes the chip of the inner corner tool into short wires, not easy to wind, and has an obvious space for the chip export direction, so that the chip can leave the tool holder.

[0008] To achieve the above purpose, the utility model provides a chamfering tool holder with a wire breaking function, which includes a tool shank, a tool head, an inner corner tool seat, an outer corner tool seat and an end face tool seat. The tool shank, the tool head and the inner corner tool seat are axially arranged in sequence; inner corner cutting blades are axially locked on both sides of the inner corner tool seat, and the cutting edge of the inner corner cutting blade forms an angle α with the axis of the tool head; a pair of axially symmetric mounting grooves are provided on both sides of the tool head, the outer corner tool seat is detachably fixed in one of the mounting grooves, the end face tool seat is detachably fixed in the other mounting groove, an outer corner cutting blade is locked on the outer corner tool seat, an end face cutting blade is locked on the end face tool seat, the cutting surfaces of the outer corner cutting blade and the end face cutting blade are in the same plane as the axis of the tool head, the cutting edge of the outer corner cutting blade forms an angle β with the axis of the tool head, and the cutting edge of the end face cutting blade is perpendicular to the axis of the tool head.

[0009] Furthermore, in the chamfering tool holder with a wire breaking function, a mounting cutting surface is provided on one side of the tool shank.

[0010] Further, in the chamfering tool holder with the function of wire breaking, the tool shank, the tool tip and the inner corner tool seat are integrally arranged.

[0011] Further, in the chamfering tool holder with the function of wire breaking, the inner corner cutting blade, the outer corner cutting blade and the end face cutting blade are all triangular cutting blades.

[0012] Further, in the chamfering tool holder with the function of wire breaking, a pair of axially symmetric inner corner tool grooves are provided on both sides of the inner corner tool seat, the inner corner cutting blade is locked in the inner corner tool groove, and a guiding cutting surface is provided at the notch of the inner corner tool groove.

[0013] Further, in the chamfering tool holder with the function of wire breaking, at least one locking hole is respectively provided on the outer corner tool seat and the end face tool seat, and the positions of the outer corner tool seat and the end face tool seat locked in the mounting grooves on both sides of the tool tip are adjusted by locking bolts matched with the locking holes.

[0014] Further, in the chamfering tool holder with the function of wire breaking, the included angle α is 14° - 16°.

[0015] Further, in the chamfering tool holder with the function of wire breaking, the included angle β is 20°.

[0016] Compared with the prior art, the beneficial effects of the present utility model are mainly reflected in: combining three separate tool holders into a single tool tip structure, which is convenient for installation and replacement; the inner corner tool adopts a double - blade structure, reducing the cutting thickness and improving the smoothness of the cutting surface; and through the structural setting of the inner corner tool seat, the chip is easily broken and has a guiding space, avoiding the chip winding around the tool tip and preventing abrasion of the inner wall of the steel pipe, so as to avoid the occurrence of product air leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figures 1 to 2 is a schematic structural diagram of the chamfering tool holder with the function of wire breaking in the present utility model;

[0018] Figure 3 is a schematic structural diagram of the head end side of the chamfering tool holder with the function of wire breaking in the present utility model;

[0019] Figure 4 is Figure 3 the right - view structural diagram of the chamfering tool holder with the function of wire breaking in

[0020] Figure 5 is Figure 3 the left - view structural diagram of the chamfering tool holder with the function of wire breaking in

[0021] Figure 6 is Figure 3 the sectional structural diagram of A - A in the chamfering tool holder with the function of wire breaking in Detailed Implementation Modes

[0022] The chamfering tool holder with wire-breaking function of the present utility model will be described in more detail below in conjunction with the schematic diagrams, in which the preferred embodiments of the present utility model are shown. It should be understood that those skilled in the art can modify the present utility model described herein while still achieving the advantageous effects of the present utility model. Therefore, the following description should be understood as broad knowledge for those skilled in the art and not as a limitation to the present utility model.

[0023] In the description of the present utility model, it should be noted that for orientation terms, such as the terms "center", "horizontal", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the indicated orientation and position relationships are based on the orientation or position relationships shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present utility model.

[0024] In the present utility model, unless otherwise clearly specified and defined, for the terms "assembled", "connected", "joined", they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be a mechanical connection; it can be directly connected, or connected through an intermediate medium, and it can be the internal connection and communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] The present utility model will be described more specifically by way of example in the following paragraphs with reference to the drawings. According to the following description, the advantages and features of the present utility model will be clearer. It should be noted that the drawings are all in a very simplified form and use non-precise scales, only for the purpose of conveniently and clearly assisting in explaining the purpose of the embodiments of the present utility model.

[0026] As Figures 1 to 2As shown in the figure, the present utility model provides a chamfering tool holder with a wire-breaking function, which includes a tool shank 1, a tool tip 2, an internal angle tool seat 3, an external angle tool seat 41 and an end face tool seat 42. The tool shank 1, the tool tip 2 and the internal angle tool seat 3 are integrally arranged in sequence along the axis; on both sides of the internal angle tool seat 3, internal angle cutting blades 31 are axially locked, and the cutting edge of the internal angle cutting blade 31 forms an angle α with the axis of the tool tip 2; on both sides of the tool tip 2, there are a pair of axially symmetric mounting grooves 21. The external angle tool seat 41 is detachably fixed in one of the mounting grooves 21, and the end face tool seat 42 is detachably fixed in the other mounting groove 21. An external angle cutting blade 51 is locked on the external angle tool seat 41, and an end face cutting blade 52 is locked on the end face tool seat 42. The cutting surfaces of the external angle cutting blade 51 and the end face cutting blade 52 are in the same plane as the axis of the tool tip 2. The cutting edge of the external angle cutting blade 51 forms an angle β with the axis of the tool tip 2, and the cutting edge of the end face cutting blade 52 is perpendicular to the axis of the tool tip 2.

[0027] That is, the tool holder is divided into three parts: front, middle and rear. The rear part is the tool shank 1 serving as the mounting base, the middle part is the structure of the tool tip 2 which is a small stepped cylinder, and the front part is the tool bar structure of the internal angle tool. Moreover, the cylindrical surface grooves on both sides of the tool tip 2 serve as the mounting seats for the external angle tool bar and the end face tool bar, facilitating the chips to escape backward along the periphery of the cylindrical tool tip 2 and avoiding entanglement on the tool. Since the internal angle tool, the external angle tool and the end face tool are changed from the structure of three separate tool holders to a tool tip structure assembled together, based on the change in the form and installation method of the tool holder, the size of the mounting seat of each tool seat only needs to be half of the original, and the installation efficiency is improved, that is, the time for installing and replacing the tooling is less than 1 / 5 of the original.

[0028] Furthermore, as Figures 1 to 4 shown, on one side of the tool shank 1, there is a mounting cutting surface 11 for installing and fixing the entire tool holder structure.

[0029] Furthermore, as Figures 1 to 6 shown, the internal angle cutting blade 31, the external angle cutting blade 51 and the end face cutting blade 52 are all triangular cutting blades, which is convenient for replacing the cutting edge of the rotating blade and improving the service life of the blade.

[0030] Furthermore, as Figures 3 to 6 shown, in this embodiment, on both sides of the internal angle tool seat 3, there are a pair of axially symmetric internal angle tool grooves 32. The internal angle cutting blades 31 are locked in the internal angle tool grooves, and at the notch of the internal angle tool grooves, there are outwardly inclined guiding cutting surfaces 32. Since the internal angle tool seat 3 is designed into two symmetric structures on the left and right, symmetric cutting can be carried out. There will be a step every half turn of cutting, making the chips easy to break. Since the cutting amount of the internal angle tool is the largest, after adopting the double-blade structure for the internal angle tool, the cutting thickness can be reduced, and the smoothness of the cutting surface can be effectively improved.

[0031] Furthermore, as Figures 1 to 2 shown, in this embodiment, at least one locking hole 43 is respectively provided on the outer corner tool holder 41 and the end face tool holder 42, and the positions of the outer corner tool holder 41 and the end face tool holder 42 locked in the mounting grooves 21 on both sides of the tool head 2 are adjusted by locking bolts cooperating with the locking holes 43.

[0032] Furthermore, as Figures 4 to 6 shown, in this embodiment, the included angle α is 14°-16°, and the included angle β is 20°.

[0033] In summary, in this embodiment, the chamfering tool holder with a wire-breaking function is proposed, which combines three separately arranged sub-tool holders into one tool head structure, facilitating installation and replacement; the inner corner tool adopts a double-tool structure, reducing the cutting thickness and improving the smoothness of the cutting surface; and through the structural settings of each tool holder, the chips are easily broken and there is a space for guiding, avoiding the chips from winding around the tool head and preventing abrasion of the inner wall of the steel pipe, so as to avoid the occurrence of air leakage of the product.

[0034] The above is only the preferred embodiment of the present invention and does not impose any limitation on the present invention. Any person skilled in the art, without departing from the technical solution of the present invention, makes any form of equivalent substitution or modification and other changes to the technical solution and technical content disclosed by the present invention, which are all within the content of the technical solution of the present invention and still fall within the protection scope of the present invention.

Claims

1. A chamfering tool holder with wire breaking function, characterized in that: The invention comprises a tool handle (1), a tool head (2), an inner corner tool seat (3), an outer corner tool seat (41) and an end face tool seat (42), wherein the tool handle (1), the tool head (2) and the inner corner tool seat (3) are axially arranged in sequence; inner corner blades (31) are axially locked on both sides of the inner corner tool seat (3), and the cutting edge of the inner corner blade (31) forms an angle α with the axis of the tool head (2); a pair of axially symmetrical mounting grooves (21) are provided on both sides of the tool head (2), and the outer corner tool seat (41) is detachably fixed in one of the mounting grooves (21). ), the end face tool holder (42) is detachably fixed in another mounting groove (21), the outer angle tool holder (41) is locked with a built-in outer angle blade (51), and the end face tool holder (42) is locked with a built-in end face blade (52), the cutting surfaces of the outer angle blade (51) and the end face blade (52) are in the same plane as the axis of the tool head (2), the cutting edge of the outer angle blade (51) forms an angle β with the axis of the tool head (2), and the cutting edge of the end face blade (52) is perpendicular to the axis of the tool head (2).

2. The chamfering tool holder with wire cutting function according to claim 1, characterized in that: A mounting cut surface (11) is provided on one side of the knife handle (1).

3. The chamfering tool holder with wire breaking function according to claim 1, characterized in that: The knife handle (1), the knife head (2) and the inner corner knife seat (3) are an integrally arranged structure.

4. The chamfering tool holder with wire cutting function according to claim 1, characterized in that: The inner angle blade (31), the outer angle blade (51) and the end face blade (52) are all triangular blades.

5. The chamfering tool holder with wire cutting function according to claim 1, characterized in that: A pair of axially symmetrical inner corner tool grooves (32) are provided on both sides of the inner corner tool seat (3), the inner corner blade (31) is locked in the inner corner tool groove (32), and a guide cut surface (33) is provided at the notch of the inner corner tool groove (32).

6. The chamfering tool holder with wire cutting function according to claim 1, characterized in that: At least one locking hole (43) is respectively provided on the outer corner tool holder (41) and the end face tool holder (42), and the positions of the outer corner tool holder (41) and the end face tool holder (42) respectively locked in the mounting grooves (21) on both sides of the tool head (2) are adjusted by locking bolts matched with the locking holes (43).

7. The chamfering tool holder with wire cutting function according to claim 1, characterized in that: The angle α is 14°-16°.

8. The chamfering tool holder with wire cutting function according to claim 1, characterized in that: The angle β is 20°.

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