A composite machining tool

Abstract

The utility model provides a kind of compound processing cutter, including knife bar, multiple saw blades, gasket and fastener, the one end of the knife bar is used to connect to external rotary power device, the other end of the knife bar is equipped with lengthened cutting area;Multiple the saw blades are spaced in the lengthened cutting area;The gasket is spaced between the two adjacent the saw blades, for isolating the two adjacent the saw blades;The fastener is detachably connected to the other end of the knife bar and is supported in the saw blade of the other end of the knife bar, for limiting multiple the saw blades and multiple the gasket.The compound processing cutter of the scheme and its connecting rod part, cutting rod part, saw blade, gasket and fastener, by the knife bar lengthened cutting area setting multiple spaced distribution saw blade, cooperate detachable fastener to realize saw blade spacing flexible adjustment, effectively improve processing efficiency and adapt to different specifications product demand, reduce processing vibration simultaneously, with the advantages of improving machining accuracy and stability.

Description

Technical Field

[0001] This utility model relates to the technical field of product cutting and machining, and in particular to a composite machining tool. Background Technology

[0002] Traditional cutting tools have significant technical limitations. Their tool holder design typically only holds a single saw blade at the tail, a structure that exhibits numerous shortcomings when machining small, blocky materials. First, the single-blade structure leads to low processing efficiency, requiring operators to perform multiple cuts to complete the task, increasing labor intensity and significantly extending the processing cycle. Second, traditional tools cannot adapt to the processing requirements of products with different specifications; their fixed saw blade spacing is difficult to adjust according to actual processing requirements. Furthermore, the single-blade structure is prone to vibration and misalignment during processing, affecting machining accuracy and surface quality. Although improvements have emerged by lengthening the tool holder's front section and installing shims, this design still suffers from limited adjustment range and insufficient structural stability, failing to meet the demands of modern high-efficiency precision machining. Traditional tools are particularly inadequate in situations requiring simultaneous multi-cutting operations. Therefore, improvements to existing technologies are urgently needed to address these issues. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a composite machining tool.

[0004] This utility model provides a composite machining tool, including a tool holder, multiple saw blades, washers, and fasteners. One end of the tool holder is connected to an external rotary power device, and the other end of the tool holder is provided with an extended cutting area. The multiple saw blades are spaced apart within the extended cutting area. The washers are spaced apart between two adjacent saw blades to isolate them. The fasteners are detachably connected to the other end of the tool holder and abut against the saw blades at the other end of the tool holder, thereby limiting the multiple saw blades and the multiple washers.

[0005] Optionally, the cutter bar includes a connecting rod portion and a cutting rod portion, the connecting rod portion being located at one end of the cutter bar, and the cutting rod portion being located at the other end of the cutter bar and forming the extended cutting area.

[0006] Optionally, the diameter of the connecting rod portion is greater than the diameter of the cutting rod portion, and the diameter of the connecting rod portion is smaller than the outer diameter of the saw blade, so as to facilitate the saw blade extending out of the connecting rod portion, and the diameter of the cutting rod portion is less than or equal to the inner diameter of the saw blade.

[0007] Optionally, the composite machining tool further includes a pad, the inner diameter of which is less than or equal to the diameter of the cutting rod, the pad being fitted onto the cutting rod and positioned between the saw blade and the fastener.

[0008] Optionally, the pads may include multiple pads for filling the extended cutting area according to the change in the number of saw blades.

[0009] Optionally, the extended cutting zone includes 5 to 8 saw blades spaced apart along the axial direction of the cutting rod.

[0010] Optionally, the other end of the cutter bar is provided with an external thread structure, and the inner side of the fastener is provided with an internal thread structure. The fastener is connected to the cutting rod part by the mutual engagement of the internal thread structure and the external thread structure.

[0011] Optionally, the thickness of the saw blade gradually decreases from the center to the periphery.

[0012] Optionally, the washer is a circular washer made of an elastic and deformable material, the inner diameter of the circular washer is greater than or equal to the diameter of the cutting rod, the outer diameter of the circular washer is greater than the inner diameter of the saw blade, and the outer diameter of the circular washer is less than or equal to the diameter of the connecting rod.

[0013] Optionally, the circular washer has a break in the thickness direction to facilitate the circular washer being fitted into the cutting rod from the break.

[0014] The beneficial effects of this plan are as follows:

[0015] The composite machining tool and its connecting rod, cutting rod, saw blade, washer, and fasteners in this solution feature multiple spaced saw blades in the cutting area by extending the tool shank. With the help of detachable fasteners, the saw blade spacing can be flexibly adjusted, which effectively improves processing efficiency and adapts to the needs of different product specifications. At the same time, it reduces processing vibration and has the advantages of improving processing accuracy and stability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a composite machining tool;

[0017] Figure 2 This is a planar schematic diagram of a composite machining tool.

[0018] Figure 3 This is a cross-sectional view of a composite machining tool.

[0019] Explanation of reference numerals in the attached figures:

[0020] 10. Blade holder; 11. Connecting rod; 12. Cutting rod; 121. Extended cutting zone; 20. Saw blade; 30. Washer; 31. Break-off; 40. Fastener; 50. Spacer. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise expressly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection within two components. For those skilled in the art, the specific meaning of the terms in this utility model can be understood according to the specific circumstances.

[0023] See Figure 1-3 The composite machining tool of this embodiment includes a tool holder 10, multiple saw blades 20, washers 30, and fasteners 40. One end of the tool holder 10 is connected to an external rotating power device, and the other end is provided with an extended cutting area 121; the multiple saw blades 20 are distributed at intervals in the extended cutting area 121, and isolation washers 30 are provided between adjacent saw blades 20; the fasteners 40 are detachably connected to the end of the tool holder 10 and press the saw blades 20 together to achieve synchronous fixation of the multiple saw blades 20.

[0024] The saw shank 10 is a metal rod that supports the 20 saw blades and transmits rotational power. It can be implemented using a stepped shaft structure, with the connecting end having a larger diameter than the cutting end to enhance rigidity. The extended cutting area 121 is an assembly area formed by the axial extension of the end of the saw shank 10, which can be achieved by extending the length of the cutting rod 12 to accommodate multiple saw blades 20. Each saw blade 20 is a disc-shaped tool with a cutting edge, which can be implemented using an internal hole assembly method. Its thickness decreases from the center to the edge to reduce cutting resistance. The washer 30 is an annular component that isolates adjacent saw blades 20, which can be made of an elastic material and compensates for assembly gaps through deformation. The fastener 40 is a connecting component that axially presses the saw blade set 20, which can be implemented using a threaded engagement structure for easy disassembly and adjustment of the number of saw blades 20.

[0025] Specifically, after the cutter bar 10 is connected to the power unit via the connecting end, the cutting end is sequentially fitted with saw blades 20 and washers 30 to form an alternating stacked structure. When the fastener 40 is screwed into the end of the cutting bar 12, its end face presses against the outermost saw blade 20, ensuring that all saw blades 20 and washers 30 form a tight axial contact. During rotation, multiple saw blades 20 cut material simultaneously, and the washers 30 maintain the spacing between the saw blades 20 to avoid interference. When it is necessary to adjust the number of saw blades 20, it is only necessary to disassemble the fastener 40 to add or remove combinations of saw blades 20 and washers 30.

[0026] Compared to existing technologies, traditional saw blades are limited by the structure of a single saw blade 20, and can only complete a single cutting surface in each processing run. This solution, however, through an extended cutting area 121 and modular assembly design, allows for the formation of multiple parallel cutting surfaces in a single processing run, making it particularly suitable for batch processing of small block materials. In existing technologies, shims are only used to fix a single saw blade 20; this solution innovatively uses washers 30 as spacing adjustment elements, enabling dynamic combination of multiple saw blades 20.

[0027] Through the above technical solution, this application effectively solves the technical problem of synchronous fixing of multiple saw blades 20, significantly improving the processing efficiency of small workpieces. The spacing between the saw blades 20 can be flexibly adjusted according to the material characteristics, avoiding cutting interference; the modular assembly structure simplifies the tool maintenance process and reduces equipment downtime.

[0028] In this embodiment, the composite machining tool includes a tool holder 10, which includes a connecting rod portion 11 and a cutting rod portion 12. The connecting rod portion 11 is located at one end of the tool holder 10, and the cutting rod portion 12 is located at the other end of the tool holder 10 and forms an extended cutting area 121.

[0029] The connecting rod 11 is the structural part used to transmit rotational power, which can be implemented as a solid cylinder, and its diameter design must meet the connection matching requirements with the external power device. The cutting rod 12 is the extension structural part that carries the saw blade 20 assembly, which can be implemented as a stepped shaft structure, and its axial length can be adaptively adjusted according to the number of stacked saw blades 20.

[0030] Specifically, the connecting rod 11 and the cutting rod 12 adopt a split structure design. The connecting rod 11 is connected to an external rotating power device via a threaded or flanged structure, and the cutting rod 12 has an axial positioning plane machined on its surface to fix the circumferential position of the saw blade 20. During assembly, multiple saw blades 20 are sequentially fitted into the cutting rod 12 and spaced apart by washers 30, and finally axially tightened by the end fasteners 40. The split rod structure allows the length of the extended cutting area 121 to be flexibly adjusted according to the number of saw blades 20 stacked, while ensuring overall rigidity.

[0031] This solution uses a split rod design, allowing the cutting rod 12 to be independently processed into different lengths. While maintaining the standardization of the connecting rod 11, it expands the cutting area, solving the technical obstacle of traditional structures that cannot flexibly adjust the length of the cutting area.

[0032] In this embodiment, the diameter of the connecting rod portion 11 is greater than the diameter of the cutting rod portion 12, and the diameter of the connecting rod portion 11 is less than the outer diameter of the saw blade 20, so as to facilitate the saw blade 20 to extend out of the connecting rod portion 11. The diameter of the cutting rod portion 12 is less than or equal to the inner diameter of the saw blade 20.

[0033] The connecting rod 11 refers to the part that connects the cutter bar 10 to the external rotating power device. It can be implemented using a cylindrical metal rod with a diameter larger than the cutting rod 12 to enhance structural strength. The saw blade 20 is fitted onto the cutting rod 12 with its inner diameter, and its outer diameter exceeds the diameter of the connecting rod 11, allowing the cutting area to extend beyond the connecting rod 11. The matching relationship between the diameter of the cutting rod 12 and the inner diameter of the saw blade 20 ensures that the saw blade 20 maintains radial positioning during rotation. Simultaneously, the design of the connecting rod 11 having a smaller diameter than the outer diameter of the saw blade 20 avoids interference from the connecting rod 11 with the cutting range.

[0034] In this embodiment, the composite machining tool also includes a pad 50, the inner diameter of which is less than or equal to the diameter of the cutting rod portion 12, and the pad 50 is sleeved on the cutting rod portion 12 and located between the saw blade 20 and the fastener 40.

[0035] Among them, the pad 50 refers to the annular component used to fill the axial gap between the saw blade 20 and the fastener 40. It can be made of metal or hard plastic and is axially positioned by being sleeved on the surface of the cutting rod 12.

[0036] In this embodiment, the composite machining tool includes multiple spacers 50, which are used to fill the extended cutting area 121 according to the change in the number of saw blades 20. This solution, by adding replaceable spacers 50, enables the same tool to be compatible with different combinations of saw blades 20, while ensuring that the fasteners 40 can always effectively constrain the saw blade 20 group.

[0037] In this embodiment, the extended cutting area 121 includes 5 to 8 saw blades 20 spaced apart along the axial direction of the cutting rod 12. Specifically, the cutting rod 12 is designed as a cylindrical structure of sufficient length, with its outer surface forming an installation area for supporting the saw blades 20. Saw blades 20 and elastic washers 30 are sequentially fitted onto the surface of the cutting rod 12, so that 5 to 8 saw blades 20 are spaced apart along the length of the rod. Adjacent saw blades 20 are physically isolated by elastic washers 30, the spacing of which is determined by the thickness of the washers 30. When the fasteners 40 are screwed into the end of the cutting rod 12, all saw blades 20 and washers 30 are axially compressed to form a stable cutting assembly.

[0038] In this embodiment, the other end of the cutter bar 10 is provided with an external thread structure, and the inner side of the fastener 40 is provided with an internal thread structure. The fastener 40 is connected to the cutting rod portion 12 through the mutual engagement of the internal and external thread structures. The external thread at the end of the cutting rod portion 12 of the cutter bar 10 and the internal thread of the fastener 40 form a mating relationship. When the fastener 40 is screwed in, its end face abuts against the outermost saw blade 20. The axial pressure generated by the thread engagement presses and fixes the multiple saw blades 20 and the washers 30 to the cutting rod portion 12. When it is necessary to adjust the number of saw blades 20 or replace parts, the pressure can be released by rotating the fastener 40 in the opposite direction, which facilitates quick disassembly or reassembly.

[0039] In this embodiment, the thickness of the saw blade 20 gradually decreases from the center to the periphery.

[0040] In this embodiment, the washer 30 is a circular washer made of an elastically deformable material. The inner diameter of the circular washer 30 is greater than or equal to the diameter of the cutting rod portion 12, the outer diameter of the circular washer 30 is greater than the inner diameter of the saw blade 20, and the outer diameter of the circular washer 30 is less than or equal to the diameter of the connecting rod portion 11. The circular washer 30 has a cutout 31 in its thickness direction to facilitate the insertion of the circular washer 30 into the cutting rod portion 12 through the cutout 31. The cutout 31 refers to a cut structure that penetrates along the thickness direction of the circular washer 30. Specifically, it can be achieved by forming a notch in the annular body using an elastically deformable material. The cutout 31 allows the circular washer 30 to undergo elastic deformation under force, thereby expanding the inner diameter space to accommodate the cutting rod portion 12. This application achieves the technical effect of quick installation of the washer 30 without disassembling the cutter bar 10, reducing the complexity and time cost of maintenance operations. Simultaneously, the elastic reset characteristic effectively prevents the washer 30 from shifting during high-speed rotation, ensuring the stability of the spacing between the multiple saw blades 20.

[0041] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A composite machining tool, characterized in that, include: A cutter bar, one end of which is connected to an external rotary power device, and the other end of which is provided with an extended cutting area; Multiple saw blades, which are spaced apart within the extended cutting area; Washers are spaced apart between two adjacent saw blades to isolate the two adjacent saw blades; Fasteners, detachably connected to the other end of the cutter bar and abutting against the saw blades at the other end of the cutter bar, are used to limit the plurality of saw blades and the plurality of washers.

2. The composite machining tool according to claim 1, characterized in that, The cutter bar includes a connecting rod portion and a cutting rod portion. The connecting rod portion is located at one end of the cutter bar, and the cutting rod portion is located at the other end of the cutter bar and forms the extended cutting area.

3. The composite machining tool according to claim 2, characterized in that, The diameter of the connecting rod portion is greater than the diameter of the cutting rod portion, and the diameter of the connecting rod portion is smaller than the outer diameter of the saw blade, so as to facilitate the saw blade extending out of the connecting rod portion. The diameter of the cutting rod portion is less than or equal to the inner diameter of the saw blade.

4. The composite machining tool according to claim 2, characterized in that, The composite machining tool also includes a pad, the inner diameter of which is less than or equal to the diameter of the cutting rod, and the pad is fitted onto the cutting rod and positioned between the saw blade and the fastener.

5. The composite machining tool according to claim 4, characterized in that, The pads include multiple blocks, used to fill the extended cutting area according to the change in the number of saw blades.

6. The composite machining tool according to claim 2, characterized in that, The extended cutting zone includes 5 to 8 saw blades spaced apart along the axial direction of the cutting rod.

7. The composite machining tool according to claim 2, characterized in that, The other end of the cutter bar is provided with an external thread structure, and the inner side of the fastener is provided with an internal thread structure. The fastener is connected to the cutting rod part by the interlocking of the internal thread structure and the external thread structure.

8. The composite machining tool according to claim 1, characterized in that, The thickness of the saw blade gradually decreases from the center to the periphery.

9. The composite machining tool according to claim 2, characterized in that, The washer is a circular washer made of an elastic and deformable material. The inner diameter of the circular washer is greater than or equal to the diameter of the cutting rod, the outer diameter of the circular washer is greater than the inner diameter of the saw blade, and the outer diameter of the circular washer is less than or equal to the diameter of the connecting rod.

10. The composite machining tool according to claim 9, characterized in that, The circular washer has a break in its thickness direction to facilitate the insertion of the circular washer into the cutting rod from the break.

Images