Combined compression type bidirectional chamfering tool

Abstract

The utility model discloses a combined compression type two-way chamfering cutter which comprises a lower chamfering cutter part, an upper chamfering cutter part, a compression bearing, a width adjusting gasket, a centering gasket, a tensioning screw and a locking nut, and the tensioning screw sequentially penetrates through the centering gasket, the lower chamfering cutter part, the width adjusting gasket, the compression bearing and the upper chamfering cutter part and is assembled through the locking nut. When the cutter is used for machining a workpiece, the pressing bearing plays a role in pressing the workpiece, the pressing force is perpendicular to the clamping force for clamping the workpiece, vibration generated during workpiece machining can be effectively reduced, vibration marks are restrained, and the quality of the surface of the machined workpiece is improved; by designing the upper chamfering cutter part and the lower chamfering cutter part, an upper chamfer and a lower chamfer can be independently machined, the distance between the upper chamfer and the lower chamfer can be adjusted to be suitable for the thickness of a workpiece, then the upper chamfer and the lower chamfer are machined at the same time, the application range is wider, meanwhile, due to the design changing characteristic, one cutter has multiple purposes through programming of machine tool equipment, the cutter changing time is shortened, and the machining efficiency is improved. The circulation time is shortened, and the machining efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cutters, in particular to a combined clamping type bidirectional chamfering cutter. Background Art

[0002] In the processing of electronic components, we often encounter some workpieces that need to be chamfered around the periphery, such as the need to chamfer both sides of the flange. The traditional processing method is to use a chamfering cutter to perform chamfering on a CNC milling machine, but it can only process the chamfer of one side of the flange. The chamfer of the other side requires the workpiece to be turned around and clamped, and the tool and machine are re-calibrated to complete the processing. This will not only increase the vibration generated during processing and thus affect the processing quality, but also lengthen the production line, increase the tool change time, and reduce production efficiency. The workpiece will be repeatedly positioned and clamped, which will reduce the processing quality of the workpiece, and even the chamfering of the other side cannot be performed because the workpiece cannot be turned around and clamped. Utility Model Content

[0003] In order to solve the above-mentioned technical problems, the utility model provides a combined clamping type bidirectional chamfering tool.

[0004] The technical solution of the utility model is achieved in this way:

[0005] A combined clamping bidirectional chamfering tool comprises a lower chamfering tool portion, an upper chamfering tool portion, a clamping bearing, a width adjustment washer, a centering washer, a tightening screw and a locking nut, wherein the lower chamfering tool portion is provided with a first through hole along the center axis, a first tapered hole is provided at one end of the first through hole, a first cylinder is provided at the end of the lower chamfering tool portion away from the first tapered hole, the first cylinder cooperates with the inner hole of the clamping bearing, four evenly distributed first cutting teeth are provided on the periphery of the lower chamfering tool portion, a first front cutting edge is formed on the side of the first cutting tooth, a first back cutting edge and a second back cutting edge are provided on the back of the first cutting tooth, the first back cutting edge and the first front cutting edge form four evenly distributed first cutting edges, and an angle α is formed between each of the first cutting edges.

[0006] Preferably, the upper chamfering blade portion is provided with a second through hole along the center axis, a shank portion is provided at one end of the upper chamfering blade portion, a second tapered hole is provided on the end face of the shank portion, a second cylinder is provided at the end of the upper chamfering blade portion away from the second tapered hole, the second cylinder cooperates with the inner hole of the clamping bearing, four evenly distributed second teeth are provided on the periphery of the upper chamfering blade portion, a second front cutting edge surface is formed on the side of the second tooth, a third back cutting edge surface and a fourth back cutting edge surface are provided on the back of the second tooth, the third back cutting edge surface and the second front cutting edge surface form four evenly distributed second cutting edges, and an angle β is formed between each of the second cutting edges.

[0007] Preferably, the width-adjusting washer is arranged in the fitting gap between the clamping bearing and the lower chamfering knife portion, and the thickness of the width-adjusting washer is calculated based on the thickness of the processed product minus the upper and lower chamfers and the clamping bearing of the product.

[0008] Preferably, the centering gasket is arranged in the first tapered hole and the second tapered hole.

[0009] Preferably, the tensioning screw passes through the centering gasket, the lower chamfering blade, the width adjustment washer, the clamping bearing, the upper chamfering blade and the centering gasket in sequence, and the end of the tensioning screw is assembled through the locking nut.

[0010] Preferably, the angle α formed between the first cutting edges is set in the range of 30° to 120°.

[0011] Preferably, the angle β formed between the second cutting edges is set in the range of 30° to 120°.

[0012] Preferably, an angle θ is formed between the first cutting edge and the second cutting edge, and the angle θ is set in a range between 30° and 150°.

[0013] Preferably, the thickness of the width-adjusting gasket is set in the range of 1 to 10 mm.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model provides a combined clamping type bidirectional chamfering tool. When the tool processes a workpiece, the clamping bearing plays a clamping role on the workpiece. The clamping force is perpendicular to the clamping force of the workpiece clamping, which can effectively reduce the vibration generated during the workpiece processing, suppress vibration marks, and improve the surface quality of the processed part. By designing the upper chamfering tool part and the lower chamfering tool part, the upper chamfer and the lower chamfer can be processed separately, and the distance between the upper and lower chamfers can also be adjusted to a suitable thickness of the workpiece, and then the upper and lower chamfers can be processed at the same time, making the application range wider. At the same time, due to the characteristics of the modified design, one tool can be used for multiple purposes through the programming of the machine tool equipment, which reduces the tool change time, shortens the cycle time, and further improves the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a combined clamping type bidirectional chamfering tool of the utility model;

[0017] Figure 2 It is an exploded view of a combined clamping type bidirectional chamfering tool of the utility model;

[0018] Figure 3 It is a front view of a combined clamping type bidirectional chamfering tool of the utility model.

[0019] 1. lower chamfered blade portion; 11. first blade tooth; 111. first front blade surface; 121. first back blade surface; 122. second back blade surface; 13. first cutting edge; 14. first through hole; 15. first tapered hole; 16. first cylinder;

[0020] 2. upper chamfered blade portion; 21. second blade tooth; 211. second front blade face; 221. third back blade face; 222. fourth back blade face; 22. shank; 23. second cutting edge; 24. second through hole; 25. second tapered hole; 26. second cylinder;

[0021] 3. Tighten the bearing; 4. Width-adjusting washer; 5. Centering washer; 6. Tightening screw; 7. Locking nut. DETAILED DESCRIPTION

[0022] 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.

[0023] In the description of this utility, it should be noted that the terms "vertical", "upper", "lower", "horizontal", 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 this utility 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 a limitation of this utility. In addition, "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0024] In the description of this utility, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, or a connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility can be understood according to specific circumstances.

[0025] like Figure 1-3As shown, the utility model is a combined clamping bidirectional chamfering tool, comprising a lower chamfering tool portion 1, an upper chamfering tool portion 2, a clamping bearing 3, a width adjustment washer 4, a centering washer 5, a tightening screw 6 and a locking nut 7. The lower chamfering tool portion 1 is provided with a first through hole 14 along the center axis, and a first tapered hole 15 is provided at one end of the first through hole 14. The first tapered hole 15 is used for centering. The lower chamfering tool portion 1 is provided with a first cylinder 16 at the end away from the first tapered hole 15, and the first cylinder 16 cooperates with the inner hole of the clamping bearing 3. Four evenly distributed first teeth 11 are arranged on the periphery of the lower chamfering tool portion 1, and a first front blade surface 111 is formed on the side of the first tooth 11. A first back blade surface 121 and a second back blade surface 122 are arranged on the back of the first tooth 11. The first back blade surface 121 and the first front blade surface 111 form four evenly distributed first cutting edges 13, and an angle α is formed between each of the first cutting edges 13. During the machining process, the first tooth 11 of the tool generates cutting force by cutting the surface of the workpiece; the clamping bearing 3 serves as the support point of the tool, and through the cooperation between its inner hole and the first cylinder 16, it withstands the cutting force generated by the tool and ensures that the tool maintains a stable working state; the clamping effect of the clamping bearing 3 and the workpiece helps to reduce the vibration of the material surface and improve the smoothness and precision of the machined surface.

[0026] In a preferred embodiment of the utility model, the upper chamfering blade 2 is provided with a second through hole 24 along the center axis, the upper chamfering blade 2 is provided with a handle 22 at one end, and a second tapered hole 25 is provided on the end surface of the handle 22. The upper chamfering blade 2 is provided with a second cylinder 26 at the end away from the second tapered hole 25, and the second cylinder 26 cooperates with the inner hole of the clamping bearing 3. Four evenly distributed second blade teeth 21 are provided on the periphery of the upper chamfering blade 2, and a second front blade face 211 is formed on the side of the second blade tooth 21. A third back blade face 221 and a fourth back blade face 222 are provided on the back of the second blade tooth 21. The third back blade face 221 and the second front blade face 211 form four evenly distributed second cutting edges 23, and an angle β is formed between each of the second cutting edges 23. The upper chamfering blade 2 is designed in the same way as the lower chamfering blade 1, except that the upper chamfering blade 2 is provided with a handle 22 at one end. The lower chamfering blade portion 1 and the upper chamfering blade portion 2 are respectively provided with a plurality of evenly distributed first blade teeth 11 and second blade teeth 21, each of which has a front cutting edge and a back cutting edge; during the machining process, the cutting edge of the blade tooth contacts the surface of the workpiece for cutting; the design of the back cutting edge helps to reduce the influence of the cutting force on the tool and improve the cutting efficiency.

[0027] In a preferred embodiment of the utility model, the width-adjusting washer 4 is arranged in the matching gap between the clamping bearing 3 and the lower chamfering cutter portion 1, and the thickness of the width-adjusting washer 4 is calculated based on the thickness of the processed product minus the upper and lower chamfers of the product and the clamping bearing 3. The function of the width-adjusting washer 4 is to correctly align the tool with the workpiece surface to ensure cutting quality and processing accuracy.

[0028] In a preferred embodiment of the present invention, the centering gasket 5 is disposed in the first tapered hole 15 and the second tapered hole 25. The centering gasket 5 is used to improve the positioning accuracy of the tool; during the fixing and assembly process of the tool, the centering gasket 5 can effectively keep the position of the tool stable and avoid the tool from being offset or moved during the processing.

[0029] In a preferred embodiment of the present utility model, the tightening screw 6 passes through the centering gasket 5, the lower chamfering blade 1, the width adjustment washer 4, the clamping bearing 3, the upper chamfering blade 2 and the centering gasket 5 in sequence, and the end of the tightening screw 6 is assembled through the locking nut 7. The tightening screw 6 passes through various components and is finally assembled through the locking nut 7 to form a complete clamping type bidirectional chamfering tool; the tightening screw 6 and the locking nut 7 are used to fix the structure of the tool to ensure that the tool will not loosen or fall off during the processing, thereby ensuring the safety and stability of the processing.

[0030] In a preferred embodiment of the present invention, the angle α formed between the first cutting edges 13 is set in the range of 30° to 120°.

[0031] In a preferred embodiment of the present invention, the angle β formed between the second cutting edges 23 is set in the range of 30° to 120°.

[0032] In a preferred embodiment of the present invention, an angle θ is formed between the first cutting edge 13 and the second cutting edge 23 , and the angle θ is set in a range between 30° and 150°.

[0033] In a preferred embodiment of the present invention, the thickness of the width-adjusting washer 4 is set in the range of 1 to 10 mm.

[0034] Compared with the prior art, the beneficial effects of the utility model are:

[0035] The utility model provides a combined clamping bidirectional chamfering tool. When the tool processes a workpiece, the clamping bearing 3 plays a clamping role on the workpiece. The clamping force is perpendicular to the clamping force of the workpiece clamping, which can effectively reduce the vibration generated during the workpiece processing, suppress vibration marks, and improve the surface quality of the processed part; by designing the upper chamfering tool part 2 and the lower chamfering tool part 1, the upper chamfer and the lower chamfer can be processed separately, and the distance between the upper and lower chamfers can also be adjusted to a suitable thickness of the workpiece, and then the upper and lower chamfers can be processed at the same time, making the application range wider. At the same time, due to the characteristics of the modified design, one tool can be used for multiple purposes through the programming of the machine tool equipment, which reduces the tool change time, shortens the cycle time, and further improves the processing efficiency.

[0036] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A combined clamping bidirectional chamfering tool, characterized in that: The invention comprises a lower chamfering blade (1), an upper chamfering blade (2), a clamping bearing (3), a width adjustment washer (4), a centering washer (5), a tightening screw (6) and a locking nut (7), wherein the lower chamfering blade (1) is provided with a first through hole (14) along the center axis, and one end of the first through hole (14) is provided with a first tapered hole (15), and the lower chamfering blade (1) is provided with a first cylinder (16) at the end away from the first tapered hole (15), and the first cylinder (16) is connected to the clamping shaft. The lower chamfered blade portion (1) is matched with an inner hole of a bearing (3), four evenly distributed first cutting teeth (11) are arranged on the periphery of the lower chamfered blade portion (1), a first front cutting edge (111) is formed on the side of the first cutting tooth (11), a first back cutting edge (121) and a second back cutting edge (122) are arranged on the back of the first cutting tooth (11), the first back cutting edge (121) and the first front cutting edge (111) form four evenly distributed first cutting edges (13), and an angle α is formed between each of the first cutting edges (13).

2. The combined clamping bidirectional chamfering tool according to claim 1, characterized in that: The upper chamfering blade (2) is provided with a second through hole (24) along the center axis, a shank (22) is provided at one end of the upper chamfering blade (2), a second tapered hole (25) is provided on the end surface of the shank (22), a second cylinder (26) is provided at the end of the upper chamfering blade (2) away from the second tapered hole (25), the second cylinder (26) is matched with the inner hole of the clamping bearing (3), four evenly distributed second teeth (21) are provided on the periphery of the upper chamfering blade (2), a second front blade surface (211) is formed on the side of the second tooth (21), a third back blade surface (221) and a fourth back blade surface (222) are provided on the back of the second tooth (21), the third back blade surface (221) and the second front blade surface (211) form four evenly distributed second cutting edges (23), and an angle β is formed between each of the second cutting edges (23).

3. The combined clamping bidirectional chamfering tool according to claim 2, characterized in that: The width-adjusting washer (4) is arranged in the fitting gap between the clamping bearing (3) and the lower chamfering blade (1), and the thickness of the width-adjusting washer (4) is calculated based on the thickness of the processed product minus the upper and lower chamfers of the product and the clamping bearing (3).

4. The combined clamping bidirectional chamfering tool according to claim 3, characterized in that: The centering gasket (5) is arranged in the first tapered hole (15) and the second tapered hole (25).

5. The combined clamping bidirectional chamfering tool according to claim 4, characterized in that: The tensioning screw (6) passes through the centering gasket (5), the lower chamfering blade (1), the width adjustment washer (4), the clamping bearing (3), the upper chamfering blade (2) and the centering gasket (5) in sequence, and the end of the tensioning screw (6) is assembled through the locking nut (7).

6. The combined clamping bidirectional chamfering tool according to claim 5, characterized in that: The included angle α formed between the first cutting edges (13) is set in the range of 30° to 120°.

7. The combined clamping bidirectional chamfering tool according to claim 6, characterized in that: The included angle β formed between the second cutting edges (23) is set in the range of 30° to 120°.

8. The combined clamping bidirectional chamfering tool according to claim 7, characterized in that: An included angle θ is formed between the first cutting edge (13) and the second cutting edge (23), and the included angle θ is set in a range between 30° and 150°.

9. The combined clamping bidirectional chamfering tool according to claim 8, characterized in that: The thickness of the width-adjusting gasket (4) is set in the range of 1 to 10 mm.

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