Cross hole deburring structure

Abstract

The utility model discloses a deburring structure, belongs to the technical field of deburring tools, and particularly relates to a cross hole deburring structure which is composed of a flexible cutter handle and a deburring cutter. The deburring cutter is connected into the flexible cutter handle in a sleeved mode. The deburring tool is formed by combining and welding a flexible shaft, a tool bit and a disc. The deburring structure is a deburring tool capable of deburring cross holes in the machining process, the use mode of the deburring structure is the same as that of any cutting tool on a tool rest or a tool magazine of a milling machine, and the deburring structure is specially used for removing burrs at the intersection of the cross holes. In addition, the hole wall is not damaged, the deburring process is operated according to the requirements of customers, and irregular chamfers or mixed radius fillets with a small degree can be formed after deburring of the outline of the burrs is completed.

Description

Technical Field

[0001] The utility model discloses a deburring structure, belongs to the technical field of deburring tools, and specifically relates to a cross hole deburring structure. Background Art

[0002] Cross holes are a common hole type that can be used to connect different pipes or fluid systems. When processing cross holes, some special methods are usually required to ensure the accuracy and quality of the holes. First, choose the right processing tool. Usually, drills or milling cutters are used for processing, but for larger hole diameters or thicker materials, special equipment such as drilling machines or beds may be required. Secondly, reasonable clamping and positioning are required. The processing of cross holes usually requires multiple cuts, so the workpiece needs to be stably fixed on the processing table and positioned and clamped with appropriate fixtures to ensure the accuracy of the position and size of the holes; One of the most troublesome problems in the manufacturing industry is the removal of burrs generated during cross drilling. When drilling cross holes, burrs will always be generated at the internal intersection. Not to mention removing the burrs, it is also difficult to approach the burrs. Utility Model Content

[0003] Purpose of the utility model: to provide a cross hole deburring structure to solve the above-mentioned problems.

[0004] Technical solution: A cross hole deburring structure, consisting of a flexible tool holder and a deburring tool;

[0005] The deburring tool is sleeved in the flexible tool handle;

[0006] The deburring tool is welded together by a flexible shaft, a cutter head and a disc;

[0007] The cutter head is a hemispherical cutter head or a full-spherical cutter head.

[0008] In a further embodiment, when a hemispherical cutter head is used, the deburring tool is welded together by a flexible shaft, a hemispherical cutter head and a disc; one end of the flexible shaft is connected to the flexible tool handle, and the other end is welded to the end of the hemispherical cutter head, and the disc is welded to the tail of the hemispherical cutter head.

[0009] In a further embodiment, when a whole ball cutter head is used, the whole ball cutter head is composed of two hemispherical cutter heads; the deburring tool is welded together by a flexible shaft, an upper hemispherical cutter head, a lower hemispherical cutter head and a disc; one end of the flexible shaft is connected to the flexible tool handle, and the other end is welded to the end of the upper hemispherical cutter head; one end of the disc is welded to the tail of the upper hemispherical cutter head, and the other end is welded to the tail of the lower hemispherical cutter head.

[0010] In a further embodiment, the upper hemispherical cutter head and the lower hemispherical cutter head are arranged in a symmetrical manner with the disk as the center of symmetry.

[0011] In a further embodiment, the flexible shank is comprised of a clamping shaft, a first screw, a flexible shank, and a second screw;

[0012] One end of the clamping shaft is connected to the machine tool spindle, one end of the flexible handle is fixedly connected to the other end of the clamping shaft through a first screw, and the other end of the flexible handle is fixedly connected to one end of the flexible shaft through a second screw connection.

[0013] In a further embodiment, a plurality of curved cutting edges are evenly distributed on the spherical surface of the hemispherical cutter head and the full-ball cutter head.

[0014] The utility model has the following beneficial effects:

[0015] 1. The utility model can have better effect and quality.

[0016] 2. The utility model can increase production and shorten cycle time.

[0017] 3. The utility model can reduce the deburring cost.

[0018] 4. The utility model is mainly used for CNC lathes with movable tools, CNC milling machines and machining centers with spiral interpolation functions, and can also be used manually.

[0019] 5. The utility model can be flexibly combined and selected according to the existing tool handle of the user. The deburring tool can be used alone without the flexible tool handle.

[0020] 6. When deburring, the utility model only removes burrs on the edge of the workpiece with burrs, and will not damage the hole wall of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an axonometric drawing of the utility model.

[0022] Figure 2 It is a front view of the deburring structure of the whole ball cutter head of the utility model.

[0023] Figure 3 It is a front view of the deburring structure of the hemispherical cutter head of the utility model.

[0024] Figure 4 It is a schematic diagram of the utility model.

[0025] Figure numerals: flexible tool handle 1, deburring tool 2, flexible shaft 2.1, disc 2.3, upper hemispherical cutter head 2.2, lower hemispherical cutter head 2.4, clamping shaft 1.1, first screw 1.2, flexible handle 1.3, second screw 1.4, hemispherical cutter head 2.5, full ball cutter head 2.6. DETAILED DESCRIPTION

[0026] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0027] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention 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 therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0029] A cross hole deburring structure comprises: a flexible tool handle 1 and a deburring tool 2.

[0030] In one embodiment, Figures 1 to 4 As shown, the deburring tool 2 is sleeved in the flexible tool handle 1;

[0031] The deburring tool 2 is welded together by a flexible shaft 2.1, a cutter head and a disc 2.3; the length of the flexible shaft 2.1 determines the cutting pressure (i.e., preload force) applied by the tool to the edge of the workpiece, and a shorter shaft length will increase the cutting pressure and increase the cutting amount; the disc 2.3 protects the hole wall from being scratched when the cutter head of the deburring tool 2 passes through the hole, and at the same time prevents burrs from damaging the hole wall of the workpiece.

[0032] The cutter head is a hemispherical cutter head 2.5 or a full-ball cutter head 2.6; the hemispherical cutter head 2.5 is suitable for T-shaped cross holes, and the full-ball cutter head 2.6 is suitable for cross holes.

[0033] In one embodiment, Figures 1 to 4 As shown, when a hemispherical cutter head 2.5 is used, the deburring tool 2 is welded together by a flexible shaft 2.1, a hemispherical cutter head 2.5 and a disc 2.3; one end of the flexible shaft 2.1 is connected to the flexible tool handle 1, and the other end is welded to the end of the hemispherical cutter head 2.5, and the disc 2.3 is welded to the tail of the hemispherical cutter head 2.5.

[0034] In one embodiment, Figures 1 to 4 As shown, when a whole ball cutter head 2.6 is used, the whole ball cutter head 2.6 is composed of two hemispherical cutter heads 2.5; the deburring tool 2 is welded together by a flexible shaft 2.1, an upper hemispherical cutter head 2.2, a lower hemispherical cutter head 2.4 and a disc 2.3; one end of the flexible shaft 2.1 is connected to the flexible tool handle 1, and the other end is welded to the end of the upper hemispherical cutter head 2.2; one end of the disc 2.3 is welded to the tail of the upper hemispherical cutter head 2.2, and the other end is welded to the tail of the lower hemispherical cutter head 2.4.

[0035] In one embodiment, Figures 1 to 4 As shown, the upper hemispherical cutter head 2.2 and the lower hemispherical cutter head 2.4 are arranged symmetrically with the disc 2.3 as the symmetry center.

[0036] In one embodiment, Figures 1 to 4 As shown, the flexible tool handle 1 is composed of a clamping shaft 1.1, a first screw 1.2, a flexible handle 1.3 and a second screw 1.4; the flexible handle 1.3 uses its own stress deformation characteristics to provide a partial preload force to the deburring tool 2, so that the deburring tool 2 can be bent at a larger angle, thereby improving the application scope and processing efficiency of the utility model;

[0037] One end of the clamping shaft 1.1 is connected to the machine tool spindle, one end of the flexible handle 1.3 is fixedly connected to the other end of the clamping shaft 1.1 through a first screw 1.2, and the other end of the flexible handle 1.3 is fixedly connected to one end of the flexible shaft 2.1 through a second screw connection.

[0038] In one embodiment, Figures 1 to 4 As shown, a plurality of curved cutting edges are evenly distributed on the spherical surfaces of the hemispherical cutter head 2.5 and the full-ball cutter head 2.6, and burrs are removed by using these cutting edges.

[0039] Path description of the utility model:

[0040] 1. Move the deburring tool to the center line of the deburring hole (upper plane).

[0041] 2. Move the deburring tool tip into the hole so that it is within a certain range of the intersection of the cross holes.

[0042] 3. Move the flexible shaft 2.1 of the deburring tool to a position close to the hole wall, with a suitable gap between the flexible shaft 2.1 and the hole wall, so that the flexible handle 1.3 and the flexible shaft 2.1 are bent and deformed to achieve preloading of the tool.

[0043] 4. The workpiece rotates and the tool rotates in a clockwise direction (from the spindle to the part).

[0044] 5. Slowly insert the deburring tool into the hole until the entire blade of the tool completely exceeds the intersection line of the hole.

[0045] 6. Stop the rotation of the deburring tool and workpiece. Move the tool back to the center of the hole.

[0046] 7. Retract the tool along the center of the hole. The single hemisphere deburring tool ends processing at this step, but the double hemisphere deburring tool does not need this step, and the next step is required to remove the burrs at the intersection of the cross holes at the other end.

[0047] 8. After moving the tool back to the center of the hole, continue to move along the center line of the hole until it passes a certain distance from the intersection of the cross holes.

[0048] 9. Repeat paths 3 and 4.

[0049] 10. Slowly withdraw the double hemisphere deburring tool from the hole until the entire cutter head of the tool completely passes the intersection line of the hole.

[0050] 11. Return the tool along the hole center. The processing is completed.

[0051] Working principle: When the deburring tool rotates and advances slowly (preloaded) before the intersection of the cross holes, the disc 2.3 moves and rubs against the hole wall of the workpiece, and the disc 2.3 is pressed down. The hemispherical cutter head 2.5 or the whole ball cutter head 2.6 has not yet touched the hole wall. At this time, because there is no cutting, the hole wall will not be damaged. Until the disc 2.3 is located on the edge of the workpiece where the burr is located, the preload force presses the disc 2.3 down, and the hemispherical cutter head 2.5 or the whole ball cutter head 2.6 reaches the edge of the workpiece to perform deburring.

[0052] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A cross hole deburring structure, characterized in that: The deburring structure is composed of a flexible tool handle and a deburring tool; The deburring tool is sleeved in the flexible tool handle; The deburring tool is welded together by a flexible shaft, a cutter head and a disc; The cutter head is a hemispherical cutter head or a full-spherical cutter head.

2. A cross hole deburring structure according to claim 1, characterized in that: When a hemispherical cutter head is used, the deburring tool is welded together by a flexible shaft, a hemispherical cutter head and a disc; one end of the flexible shaft is connected to the flexible tool handle, and the other end is welded to the end of the hemispherical cutter head, and the disc is welded to the tail of the hemispherical cutter head.

3. A cross hole deburring structure according to claim 1, characterized in that: When a whole ball cutter head is used, the whole ball cutter head is composed of two hemispherical cutter heads; the deburring tool is welded together by a flexible shaft, an upper hemispherical cutter head, a lower hemispherical cutter head and a disc; one end of the flexible shaft is connected to the flexible tool handle, and the other end is welded to the end of the upper hemispherical cutter head; one end of the disc is welded to the tail of the upper hemispherical cutter head, and the other end is welded to the tail of the lower hemispherical cutter head.

4. A cross hole deburring structure according to claim 3, characterized in that: The upper hemispherical cutter head and the lower hemispherical cutter head are arranged in a symmetrical manner with the disk as the symmetry center.

5. The cross hole deburring structure according to claim 1, characterized in that: The flexible tool handle is composed of a clamping shaft, a first screw, a flexible handle and a second screw; One end of the clamping shaft is connected to the machine tool spindle, one end of the flexible handle is fixedly connected to the other end of the clamping shaft through a first screw, and the other end of the flexible handle is fixedly connected to one end of the flexible shaft through a second screw connection.

6. The cross hole deburring structure according to claim 1, characterized in that: A plurality of curved cutting edges are evenly distributed on the spherical surfaces of the hemispherical cutter head and the full-ball cutter head.

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