Chip-proof chamfering cutter

Abstract

The utility model relates to the field of pipe fitting processing equipment, in particular to an anti-chip chamfering cutter, which comprises a cutter handle, a cutter head and three blade groups detachably mounted on the cutter head, and further comprises an anti-chip component, and the blade groups comprise an inner angle chamfering cutter, an outer angle chamfering cutter and a flat end face cutter. The chip prevention assembly comprises a mounting frame coaxially mounted at the front end of the tool bit and a plurality of sets of cleaning mechanisms distributed in the mounting frame in a circumferential array mode and arranged in the radial direction of the tool bit in a sliding mode. The multiple sets of cleaning mechanisms move outwards under the action of centrifugal force and make contact with the inner wall of the pipe fitting to form a blocking layer for preventing flying chips from entering the pipe fitting, and the technical problem that in the prior art, during chamfering, waste chips splash into the pipe fitting is solved.

Description

Technical Field

[0001] The utility model relates to the field of pipe processing equipment, in particular to a chip-proof chamfering cutter. Background Art

[0002] Chamfering tools come in many forms and are used to process different workpieces. When processing flash, burrs or chamfers on the end faces and inner holes of hollow cylindrical workpieces such as casings, three tools for inner corners, outer corners and end faces can be installed on the tool head at the same time to perform chamfering. However, during the chamfering process, the waste chips generated by the inner corner chamfering easily enter the pipe, resulting in the need to clean the waste chips inside the pipe later.

[0003] The invention patent with Chinese patent application number CN201822253026.3 discloses a pipe feeding device, including a handle and a cutter head fixedly connected to one end of the handle, a blade group detachably mounted on the cutter head, and the blade group includes five blades, namely an inner chamfering blade, an outer chamfering blade, a first boring blade, a second boring blade and an end face chamfering blade, a coolant channel is provided in the handle, and a plurality of cooling holes connected to the coolant channel are provided on the cutter head, and the coolant cools the blade group through the coolant channel and the cooling holes. The utility model can realize one-time processing and forming of boring, chamfering inner corners, chamfering outer corners and flat end faces, improves processing efficiency, and also improves the processing accuracy of boring, and the blade can be disassembled, which is convenient for tool change and maintenance.

[0004] However, in the utility model, when chamfering the inner corner, the waste chips generated during the chamfering of the inner corner still cannot be discharged from the inside of the pipe fitting, and the inside of the pipe fitting needs to be cleaned separately. Utility Model Content

[0005] In view of the above problems, the utility model provides a chip-proof chamfering tool, in which a mounting frame is arranged on the front side of the cutter head, and a plurality of groups of movable seats are distributed in a circular array in the inner circumference of the mounting frame. A brush body is correspondingly arranged on the movable seat. When the cutter head rotates, the movable seat moves outward under the action of centrifugal force, and the brush body collides with the inner wall of the pipe fitting. After the chamfering is completed, the cutter head rotates and withdraws, and the brush body cleans the inside of the pipe end, thereby solving the technical problem of waste chips splashing into the inside of the pipe fitting during chamfering in the prior art.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A chip-proof chamfering tool comprises a tool handle, a tool head and a blade group detachably mounted on the tool head, the blade group comprising three groups, namely an inner angle chamfering tool, an outer angle chamfering tool and a flat end face tool, and also comprises a chip-proof component, the chip-proof component comprising a mounting frame coaxially mounted on the front end of the tool head, and a plurality of cleaning mechanisms distributed in a circular array in the mounting frame and radially slidingly arranged along the tool head. During chamfering, the tool handle and the tool head rotate, and the plurality of cleaning mechanisms move outward under the action of centrifugal force and contact the inner wall of a pipe fitting to form a barrier layer to prevent flying chips from entering the interior of the pipe fitting.

[0008] As an improvement, the mounting frame includes a connecting rod detachably arranged on the front side of the cutter head, a mounting plate coaxially fixedly mounted on the free end of the connecting rod, a plurality of groups of vertical rods circumferentially spaced at the edge of the mounting plate, a fixing rod fixedly mounted in the middle position of the mounting plate, and a sealing plate fixedly mounted on the fixing rod, the sealing plate, the mounting plate and the plurality of groups of vertical rods forming a storage space for accommodating a plurality of groups of cleaning mechanisms.

[0009] As an improvement, the cleaning mechanism includes a movable seat, a brush body arranged on the movable seat, and a guide assembly for guiding the movement of the movable seat, and the bristles of the brush body are extended from between two adjacent groups of the vertical rods.

[0010] As an improvement, the relative positions of two adjacent groups of vertical rods are arranged in a sawtooth shape.

[0011] As an improvement, the bristle ends of the brush body are always located outside the accommodating space.

[0012] As an improvement, the guide assembly includes two groups of guide grooves respectively opened on the mounting plate and the sealing plate and extending radially, and guide grooves arranged on both sides of the movable seat and correspondingly slidably arranged in the guide grooves.

[0013] As an improvement, the anti-chip assembly also includes a power mechanism, which includes a magnet a arranged on the other side of the movable seat relative to the brush body and a magnet b arranged around the fixed rod and attracted to the magnet a.

[0014] The beneficial effects of the utility model are:

[0015] (1) In the utility model, a plurality of groups of movable seats are arranged in an array on the inner circumference of the mounting frame, and a brush body is correspondingly arranged on the movable seat. When chamfering, the mounting frame extends into the interior of the pipe, and the plurality of groups of movable seats move outward under the action of centrifugal force, and the brush body contacts the inner wall of the pipe. After the chamfering is completed, the chamfering knife is still rotating, and the brush body takes the waste chips out of the pipe, thereby completing the cleaning of the interior of the pipe;

[0016] (2) In the present invention, after the chamfering cutter head stops rotating, under the action of magnets a and b, several groups of moving seats and the bristle body move inward, and the bristle body retreats. Under the action of the vertical rod, the waste chips remaining on the bristle body can be scraped off, ensuring that the bristle body will not bring the waste chips into the interior of the pipe;

[0017] (3) The relative positions of two adjacent groups of vertical rods in the utility model are set in a sawtooth shape, which can improve the cleaning efficiency of waste debris in the bristle body.

[0018] In summary, the utility model has the advantages of simple structure, convenient use and good waste chip treatment effect, and is particularly suitable for the field of pipe processing equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the anti-chip component mechanism;

[0021] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0022] Figure 4 Internal cross-sectional view of the mounting bracket Figure 1 ;

[0023] Figure 5 Internal cross-sectional view of the mounting bracket Figure 2 . DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] 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.

[0026] 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.

[0027] Example:

[0028] like Figure 1 and Figure 2 As shown, a chip-proof chamfering tool comprises a tool handle 1, a tool head 2 and a blade group 3 detachably mounted on the tool head 2, wherein the blade group 3 comprises three groups of inner angle chamfering knives 31, outer angle chamfering knives 32 and flat end face knives 33, and also comprises a chip-proof component 4, wherein the chip-proof component 4 comprises a mounting frame 41 coaxially mounted on the front end of the tool head 2, and a plurality of cleaning mechanisms 42 distributed in a circular array in the mounting frame 41 and radially slidingly arranged along the tool head 2. During chamfering, the tool handle 1 and the tool head 2 rotate, and a plurality of cleaning mechanisms 42 move outward under the action of centrifugal force and contact the inner wall of the pipe fitting to form a barrier layer to prevent flying chips from entering the interior of the pipe fitting.

[0029] It should be noted that the tool handle 1, the tool head 2, the inner corner chamfering tool 31, the outer corner chamfering tool 32 and the flat end face tool 33 are all prior arts, and this specification will not elaborate on them in detail.

[0030] Further, such as Figure 4 and Figure 5 As shown, the mounting frame 41 includes a connecting rod 411 detachably arranged on the front side of the cutter head 2, a mounting plate 412 coaxially fixedly mounted on the free end of the connecting rod 411, a plurality of groups of vertical rods 413 circumferentially spaced at the edge of the mounting plate 412, a fixing rod 414 fixedly mounted at the middle position of the mounting plate 412, and a sealing plate 415 fixedly mounted on the fixing rod 414. The sealing plate 415, the mounting plate 412, and the plurality of groups of vertical rods 413 form a receiving space 410 for receiving a plurality of groups of cleaning mechanisms 42.

[0031] Furthermore, the cleaning mechanism 42 includes a movable seat 421 , a brush body 422 disposed on the movable seat 421 , and a guide assembly 423 for guiding the movable seat 421 to move. The bristles of the brush body 422 extend from between two adjacent groups of the vertical rods 413 .

[0032] Furthermore, the guide assembly 423 includes two groups of guide grooves 4231 respectively opened on the mounting plate 412 and the sealing plate 415 and extending radially, and guide grooves 4232 arranged on both sides of the movable seat 421 and correspondingly slidably arranged in the guide grooves 4231 .

[0033] Further, such as Figure 4 and Figure 5 As shown, the anti-chip component 4 also includes a power mechanism 43, which includes a magnet a431 arranged on the other side of the movable seat 421 relative to the brush body 422 and a magnet b432 arranged around the fixed rod 414 and attracted to the magnet a431.

[0034] It should be noted that when the cutter head 2 rotates, the centrifugal force of the movable seat 421 is greater than the attractive force between the magnet a431 and the magnet b432.

[0035] Further, such as Figure 3 As shown, the relative positions of two adjacent groups of vertical rods 413 are arranged in a sawtooth shape.

[0036] It should be noted that, under the action of the magnet a431 and the magnet b432, several groups of the movable seats 421 move closer to the middle position. Since the side surface of the vertical rod 413 is set to be serrated, it is convenient to remove waste from the brush body 422.

[0037] It is more necessary to explain that, since the utility model adopts magnets, the utility model is more suitable for chamfering copper tubes, aluminum tubes or stainless steel tubes.

[0038] Further, such as Figure 5 As shown, the bristle ends of the brush body 422 are always located outside the accommodating space 410 .

[0039] It should be noted that the bristle end of the brush body 422 is always located outside the accommodating space 410 to ensure that when the movable seat 421 moves outward, the vertical rod 413 will not interfere with the extension process of the brush body 422.

[0040] It is further necessary to explain that, during the outward movement of the brush body 422 , due to its material properties, the brush body 422 will spread out and completely cover the cross section of the pipe.

[0041] Working process:

[0042] When the cutter head 2 chamfers the pipe, the mounting bracket 41 extends into the pipe. As the cutter head 2 rotates, several groups of the movable seats 421 move outward under the action of centrifugal force, and the bristle body 422 extends outward to prevent waste chips from entering the pipe. After the chamfering is completed, the cutter head 2 continues to rotate, and the bristle body 422 remains in an extended state. During the process of pushing the cutter head 2 out, the bristle body 422 brings the waste chips out of the pipe. After the mounting bracket 41 is completely pushed out of the pipe, the cutter head 2 stops rotating, and under the action of the magnet a431 and the magnet b432, the movable seat 421 is reset. During the resetting process, the bristle body 422 is cleaned out of the waste chips inside under the action of the vertical rod 413.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A chip-proof chamfering knife, comprising a knife handle (1), a knife head (2), and a blade set (3) detachably mounted on the knife head (2), the blade set (3) comprising three sets of inner corner chamfering knives (31), outer corner chamfering knives (32), and flat end face knives (33), characterized in that: The tool further comprises a chip prevention assembly (4), the chip prevention assembly (4) comprising a mounting frame (41) coaxially mounted on the front end of the cutter head (2), and a plurality of cleaning mechanisms (42) distributed in a circumferential array in the mounting frame (41) and radially slidingly arranged along the cutter head (2); when chamfering, the tool handle (1) and the cutter head (2) rotate, and the plurality of cleaning mechanisms (42) move outward under the action of centrifugal force and contact the inner wall of the pipe to form a barrier layer that blocks flying chips from entering the interior of the pipe.

2. The chip-proof chamfering tool according to claim 1, characterized in that: The mounting frame (41) comprises a connecting rod (411) detachably arranged on the front side of the cutter head (2), a mounting plate (412) coaxially fixedly mounted on the free end of the connecting rod (411), a plurality of groups of vertical rods (413) circumferentially spaced and arranged at the edge of the mounting plate (412), a fixing rod (414) fixedly mounted at a middle position of the mounting plate (412), and a sealing plate (415) fixedly mounted on the fixing rod (414); the sealing plate (415), the mounting plate (412), and the plurality of groups of vertical rods (413) form a receiving space (410) for receiving a plurality of groups of the cleaning mechanisms (42).

3. The chip-proof chamfering tool according to claim 2, characterized in that: The cleaning mechanism (42) comprises a movable seat (421), a brush body (422) arranged on the movable seat (421), and a guide assembly (423) for guiding the movable seat (421) to move, and the bristles of the brush body (422) extend out from between two adjacent groups of vertical rods (413).

4. The chip-proof chamfering tool according to claim 3, characterized in that: The relative positions of two adjacent groups of vertical rods (413) are arranged in a sawtooth shape.

5. The chip-proof chamfering tool according to claim 3, characterized in that: The bristle ends of the brush body (422) are always located outside the accommodating space (410).

6. The chip-proof chamfering tool according to claim 3, characterized in that: The guide assembly (423) comprises two groups of guide grooves respectively provided on the mounting plate (412) and the sealing plate (415) and extending in the radial direction, and guide grooves (4232) provided on both sides of the movable seat (421) and correspondingly slidably provided in the guide grooves.

7. The chip-proof chamfering tool according to claim 3, characterized in that: The anti-chip assembly (4) further comprises a power mechanism (43), the power mechanism (43) comprising a magnet a (431) arranged on the other side of the movable seat (421) relative to the brush body (422), and a magnet b (432) arranged around the fixed rod (414) and mutually attracted to the magnet a (431).

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