Combined tool for machining special-shaped cavity and machining equipment

Abstract

The utility model provides a combined cutter and processing equipment for processing a special-shaped cavity, the combined cutter for processing the special-shaped cavity comprises a cutter bar, a cutting knife and a fixed bar, the cutter bar is provided with a clamping groove, the clamping groove extends along the axial direction of the cutter bar, the side wall of the clamping groove is provided with a positioning hole, the cutting knife comprises a knife handle, a knife body and a knife point which are connected in sequence, and the fixed bar is provided with a positioning hole. The cutter handle is inserted into the clamping groove, and one end of the fixing rod penetrates through the positioning hole to abut against the cutter handle so that the cutter can be fixed to the cutter bar. According to the special-shaped cavity machining device, chatter marks in the machining process can be reduced, the position and the angle of the cutter can be conveniently adjusted, and therefore high-precision machining of a special-shaped cavity is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical processing technical field, concretely relates to a combined tool for processing special-shaped cavity and a processing equipment. BACKGROUND

[0002] In the field of mechanical processing, special-shaped cavities are a kind of workpieces with unique shape and complex internal structure. The deep cavity surface inside the special-shaped cavity is a technical problem in the processing process. When facing a special-shaped cavity with a cavity depth ratio exceeding 1:20 and the maximum size of the hole in the cavity exceeding 1:18, the huge cavity depth ratio will cause the rigidity of the tool to decrease significantly during processing, causing tool vibration. Moreover, the huge change in the size of the hole in the cavity also makes it difficult to maintain a consistent material removal rate during processing, affecting processing accuracy and surface quality. SUMMARY

[0003] The utility model is based on the discovery and understanding of the following facts and problems by the utility model person:

[0004] During the processing of special-shaped cavities, when the cavity depth ratio of the special-shaped cavity exceeds 1:20, the rigidity of the tool will decrease significantly during processing as it penetrates the cavity. This is because as the tool penetrates the cavity, its support point gradually moves away from the processing point, causing the tool to be easily affected by various external forces during processing, resulting in vibration. This vibration not only reduces processing accuracy, but also accelerates tool wear, and even causes tool breakage, severely affecting processing efficiency and safety.

[0005] In addition, when the maximum size of the hole in the special-shaped cavity exceeds 1:18, it becomes extremely difficult to control the material removal rate during processing. Due to the huge change in the size of the hole in the cavity, the tool needs to be constantly adjusted in cutting parameters when processing different parts to ensure the stability of the material removal rate and the uniformity of the processing quality. However, in actual operation, due to the limitations of processing conditions and tool performance, it is often difficult to achieve this goal. This leads to inconsistent material removal rates and poor processing surface quality during processing, severely affecting the overall processing quality and performance of special-shaped cavities.

[0006] Therefore, the embodiments of the utility model provide a combined tool for processing special-shaped cavities and a processing equipment, which can reduce the occurrence of vibration marks during processing, facilitate the adjustment of the position and angle of the cutting tool, and thus achieve high-precision processing of special-shaped cavities.

[0007] The combined cutter for processing special-shaped cavities provided by the embodiment of the utility model comprises a cutter bar, a cutting tool and a fixing rod, the cutter bar is provided with a clamping groove, the clamping groove is arranged in the axial direction of the cutter bar, a positioning hole is arranged on the side wall of the clamping groove, the cutting tool comprises a handle, a tool body and a tool tip which are connected in sequence, the handle is inserted into the clamping groove, one end of the fixing rod passes through the positioning hole and abuts against the handle to fix the cutting tool on the cutter bar.

[0008] In conclusion, the combined cutter for processing special-shaped cavities provided by the embodiment of the utility model not only can reduce the occurrence of vibration marks in the processing process, but also greatly facilitates the adjustment of the position of the cutting tool, so that the operator can quickly adjust the position and angle of the cutting tool according to the actual demand, thereby realizing high-precision processing of the special-shaped cavities.

[0009] In some embodiments, the positioning hole is provided with a plurality of positioning holes, and the spacing between the plurality of positioning holes gradually increases from the cutter bar towards the tool body in the axial direction of the cutter bar.

[0010] In some embodiments, the positioning hole is provided with four positioning holes, the positioning hole has an internal thread, and the fixing rod has an external thread segment, and the external thread segment is screwed to the internal thread of the positioning hole.

[0011] In some embodiments, the combined cutter for processing special-shaped cavities further comprises an adjusting gasket, and the adjusting gasket is arranged between the handle and the inner wall surface of the clamping groove.

[0012] In some embodiments, the adjusting gasket is provided with a plurality of adjusting gaskets, and the plurality of adjusting gaskets are respectively located on opposite sides of the handle.

[0013] In some embodiments, the cross-sectional area of the tool body gradually decreases from the handle towards the tool tip.

[0014] In some embodiments, the tool tip is rhombic, and the tool tip is made of diamond.

[0015] In some embodiments, the cutting tool further comprises a connecting rod, a through hole is arranged on the tool tip, a threaded hole is arranged on the tool body, and one end of the connecting rod is inserted into the through hole and the threaded hole to fix the tool tip and the tool body.

[0016] In some embodiments, the cutter bar comprises a first shaft segment and a second shaft segment which are connected, the outer diameter of the second shaft segment is greater than the outer diameter of the first shaft segment, and the positioning hole is arranged on the second shaft segment.

[0017] In addition, the processing equipment provided by the embodiment of the utility model comprises the combined cutter for processing special-shaped cavities provided by any one of the above embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is an assembly schematic view of the combined cutter for processing the special-shaped cavity provided by an embodiment of the present application.

[0019] Figure 2 is a structural schematic view of the knife rod in the combined cutter for processing the special-shaped cavity provided by an embodiment of the present application.

[0020] Figure 3 is a side view schematic view of the knife rod in the combined cutter for processing the special-shaped cavity provided by an embodiment of the present application.

[0021] Figure 4 is an assembly schematic view of the combined cutter for processing the special-shaped cavity provided by another embodiment of the present application.

[0022] Reference signs:

[0023] 10, knife rod; 11, clamping groove; 12, positioning hole; 13, first shaft section; 14, second shaft section;

[0024] 20, cutting knife; 21, knife handle; 22, knife body; 23, knife tip; 231, through hole; 24, connecting rod;

[0025] 30, fixing rod;

[0026] 40, adjusting gasket. DETAILED DESCRIPTION

[0027] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the drawings. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0028] As shown in Figure 1 , Figure 2 and Figure 3 , an embodiment of the present application provides a combined cutter for processing a special-shaped cavity, which comprises a knife rod 10, a cutting knife 20 and a fixing rod 30, the knife rod 10 is provided with a clamping groove 11, the clamping groove 11 is arranged in the axial direction of the knife rod 10, the side wall of the clamping groove 11 is provided with a positioning hole 12, the cutting knife 20 comprises a knife handle 21, a knife body 22 and a knife tip 23 which are connected in sequence, the knife handle 21 is inserted into the clamping groove 11, one end of the fixing rod 30 passes through the positioning hole 12 and abuts against the knife handle 21 to fix the cutting knife 20 on the knife rod 10.

[0029] Specifically, the shape of the shank 21 is matched with the clamping groove 11, and the cutting tool 20 can be inserted into the clamping groove 11 through the shank 21. One end of the fixing rod 30 passes through the positioning hole 12 on the tool bar 10 and abuts against the shank 21 of the cutting tool 20, so that the cutting tool 20 is fixed on the tool bar 10, which not only simplifies the installation process of the tool, but also greatly improves the stability of the cutting tool 20 during the machining process, effectively reduces the vibration caused by vibration, and improves the machining precision and surface quality.

[0030] In conclusion, the combined tool for processing the special-shaped cavity provided by the embodiments of the present application not only can reduce the occurrence of vibration during the processing, but also greatly facilitates the adjustment of the position of the cutting tool 20, so that the operator can quickly adjust the position and angle of the cutting tool 20 according to the actual demand, thereby realizing high-precision processing of the special-shaped cavity.

[0031] In some embodiments, the positioning hole 12 is provided with a plurality of positioning holes 12, and the spacing between the plurality of positioning holes 12 gradually increases from the tool bar 10 towards the tool body 22 in the axial direction of the tool bar 10. That is, during use, the operator can select the most suitable positioning hole 12 for fixing according to the specific shape of the special-shaped cavity and the processing requirements, so as to ensure that the cutting tool 20 can be cut into the workpiece at the best angle and position, and realize more precise processing effect.

[0032] Moreover, the gradually increasing spacing of the positioning holes 12 also provides the possibility of fine adjustment of the cutting tool 20 on the tool bar 10. In actual operation, if it is necessary to fine-tune the position of the cutting tool 20, the operator only needs to loosen the fixing rod 30, slide the cutting tool 20 along the clamping groove 11 to a new positioning hole 12 position, and then fix it again.

[0033] Further, the positioning hole 12 is provided with four positioning holes 12, the positioning hole 12 has an internal thread, and the fixing rod 30 has an external thread segment, which is screwed into the internal thread of the positioning hole 12, so that the cutting tool 20 can be firmly fixed on the tool bar 10. Moreover, such threaded connection can also enhance the stability of the cutting tool 20 during the machining process, effectively prevent the decline of machining precision caused by vibration, and also make the disassembly and replacement of the cutting tool 20 more convenient and fast. The operator only needs to rotate the fixing rod 30 to easily realize the fixation and release of the cutting tool 20, which greatly improves the processing efficiency and the convenience of operation.

[0034] Optionally, the fixing rod 30 is provided as a stop screw.

[0035] In some embodiments, the combined tool for machining profiled cavities further comprises adjustment shims 40 arranged between the shank 21 and the inner wall surface of the clamping groove 11. During use, the operator can precisely adjust the position of the cutting blade 20 relative to the axis of the tool bar 10 by increasing or decreasing the number or thickness of the adjustment shims 40, thereby achieving fine control over the machining depth.

[0036] Moreover, the adjustment shims 40 can also effectively reduce friction and wear between the cutting blade 20 and the clamping groove 11. During machining, the cutting blade 20 will be subjected to significant pressure and friction from the workpiece, which can cause wear on the direct contact parts between the shank 21 and the clamping groove 11, thereby affecting machining accuracy and tool life. The adjustment shims 40 can absorb part of the friction and impact force, protecting the shank 21 and the clamping groove 11 from wear, thereby prolonging the service life of the tool.

[0037] Further, the adjustment shims 40 are arranged in multiple, with each adjustment shim 40 located on opposite sides of the shank 21. That is, during installation of the cutting blade 20, the operator can flexibly add or remove shims on each side of the shank 21 according to actual needs, to achieve fine adjustment of the position of the cutting blade 20. This two-sided adjustment method not only provides a larger adjustment range, but also makes the adjustment process more intuitive and easy to control, helping to quickly reach the desired machining position.

[0038] In some embodiments, the cross-sectional area of the tool body 22 gradually decreases from the shank 21 towards the tip 23. That is, during cutting, the tip 23 part of the tool body 22 can more smoothly enter the profiled cavity, thereby reducing friction and resistance with the workpiece material while maintaining high cutting efficiency, thereby reducing cutting force and cutting temperature, reducing tool wear, and prolonging service life.

[0039] In addition, the gradual change in cross-sectional area of the tool body 22 also helps to improve the quality of the machined surface. Due to the gradual narrowing of the cutting edge, the tool can more accurately control the cutting width and depth during machining, thereby reducing the possibility of vibration marks and burrs during machining, making the machined surface smoother and more even.

[0040] More importantly, the gradual change in cross-sectional area of the tool body 22 also enhances the rigidity of the tool during machining. Although the cross-sectional area of the tool body 22 gradually decreases, through reasonable structural design and material selection, the tool can still maintain sufficient strength and stability when subjected to cutting force, avoiding adverse situations such as bending or breaking during machining.

[0041] In some embodiments, the cutting tip 23 is provided in a rhombus shape, so that the cutting tip 23 can better adapt to the complex shape of the special-shaped cavity during cutting, ensuring smooth processing. The cutting tip 23 is made of diamond. During cutting, the diamond cutting tip 23 can remain sharp for a long time and is not easy to wear, thereby ensuring high precision and long service life of the processing.

[0042] In some embodiments, the cutting tool 20 further comprises a connecting rod 24, the cutting tip 23 is provided with a through hole 231, and the tool body 22 is provided with a threaded hole. One end of the connecting rod is inserted into the through hole 231 and the threaded hole to fix the cutting tip 23 and the tool body 22. This connection method is not only simple and easy to implement, but also can provide strong fastening force, ensuring the close connection between the cutting tip 23 and the tool body 22, effectively preventing loosening or falling off caused by vibration or impact force during cutting.

[0043] In addition, during cutting, the connecting rod acts as a bridge connecting the cutting tip 23 and the tool body 22, and can effectively disperse and transmit cutting force, reducing the risk of deformation or fracture of the cutting tip 23 due to excessive force. This design not only improves the durability of the cutting tool 20, but also ensures the stability and precision of the processing. In this embodiment, the connecting rod 24 can be provided as a bolt.

[0044] In some embodiments, the tool bar 10 comprises a first shaft segment 13 and a second shaft segment 14 connected together, the outer diameter of the second shaft segment 14 is larger than that of the first shaft segment 13, and the positioning hole 12 is provided on the second shaft segment 14. The first shaft segment 13 and the second shaft segment 14 can be connected by welding, threaded connection or one-piece forming, which not only enhances the rigidity of the tool bar 10, making it more stable in the face of complex cutting conditions, but also provides more stable support for the positioning hole 12.

[0045] As shown in Figure 4 Another embodiment of the utility model provides a combined tool for special-shaped cavity processing, only the different features of this embodiment compared with the above-mentioned embodiment are described, and the same parts are not introduced. In the combined tool for special-shaped cavity processing provided in this embodiment, the clamping groove 11 is inclined on the tool bar 10, and the straight line in the extension direction of the clamping groove 11 intersects the axial direction of the tool bar 10. The angle between the straight line in the extension direction of the clamping groove 11 and the axial direction of the tool bar 10 can be 30° to 60°, for example, 30°, 35°, 50°, 60° and the like. In this embodiment, the angle between the straight line in the extension direction of the clamping groove 11 and the axial direction of the tool bar 10 is 50°.

[0046] In addition, the utility model discloses an embodiment further provides a kind of processing equipment, it includes the combined tool for special-shaped cavity processing provided in the above embodiment.It needs to be explained that the processing equipment provided in the present application, its implementation principle and the technical effect generated and the preceding combined tool for special-shaped cavity processing embodiment are identical, for brief description, part of device embodiment is not mentioned, can refer to the corresponding content in the preceding combined tool for special-shaped cavity processing embodiment.

[0047] In the description of the utility model, it needs to be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "axial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0048] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise explicitly specified.

[0049] In the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise explicitly limited. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0050] In the utility model, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be indirectly contacted through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0051] In the present application, the terms "one embodiment", "some embodiments", and the like, mean that the particular feature, structure, material, or characteristic being described is included in at least one embodiment or example of the present application. The illustrative appearances of the above-mentioned terms in various places in the specification are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples. In addition, the technical personnel in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.

[0052] Although the embodiments of the present application have been shown and described above, it should be understood that the above-mentioned embodiments are exemplary and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and modifications to the above-mentioned embodiments within the scope of the present application.

Claims

1. A combined tool for machining a profiled cavity, characterized in that The tool bar, the cutting tool and the fixing rod are included, the tool bar is provided with a clamping groove, the clamping groove is arranged along the axial direction of the tool bar, the side wall of the clamping groove is provided with a positioning hole, the cutting tool includes a tool handle, a tool body and a tool tip which are connected in sequence, the tool handle is inserted into the clamping groove, one end of the fixing rod passes through the positioning hole and abuts against the tool handle to fix the cutting tool on the tool bar.

2. The combined tool for machining of a profiled cavity according to claim 1, characterized in that, The positioning hole is provided with a plurality of positioning holes, and the spacing between the plurality of positioning holes gradually increases from the tool bar towards the tool body in the axial direction of the tool bar.

3. The combined tool for machining of a profiled cavity according to claim 2, characterized in that, The positioning hole is provided with four positioning holes, the positioning hole has an internal thread, the fixing rod has an external thread segment, and the external thread segment is screwed with the internal thread of the positioning hole.

4. The combined tool for machining of a profiled cavity according to claim 1, characterized in that, An adjusting gasket is further included, and the adjusting gasket is arranged between the tool handle and the inner wall surface of the clamping groove.

5. The combined tool for machining of a profiled cavity according to claim 4, characterized in that, The adjusting gasket is provided with a plurality of adjusting gaskets, and the plurality of adjusting gaskets are respectively located on opposite sides of the tool handle.

6. The combined tool for machining of a profiled cavity according to claim 1, characterized in that, The cross-sectional area of the tool body gradually decreases from the tool handle towards the tool tip.

7. The combined tool for machining of a profiled cavity according to claim 1, characterized in that, The tool tip is rhombic and is made of diamond.

8. The combined tool for machining of a profiled cavity according to claim 1, characterized in that, The cutting tool further includes a connecting rod, the tool tip is provided with a through hole, the tool body is provided with a threaded hole, and one end of the connecting rod is inserted into the through hole and the threaded hole to fix the tool tip and the tool body.

9. The combined tool for machining of a profiled cavity according to claim 1, characterized in that, The tool bar includes a first shaft segment and a second shaft segment which are connected, the outer diameter of the second shaft segment is greater than that of the first shaft segment, and the positioning hole is arranged on the second shaft segment.

10. A processing apparatus characterized by comprising: The combined tool for machining the special-shaped cavity includes the combined tool according to any one of claims 1 to 9.

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