Adjustable cutting device suitable for annular part machining and machining drilling machine

By designing an adjustable cutting device suitable for ring parts processing and using an existing drilling machine for processing, the problems of high mold cost and long process preparation time in the existing technology are solved, and rapid and accurate processing of multiple varieties of ring parts are achieved. .

CN222493025UActive Publication Date: 2025-02-18HUBEI SANJIANG AEROSPACE WANFENG TECH DEV
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Patent Information

Application Number
CN202420367619.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-02-28
Publication Date
2025-02-18
Estimated Expiration
2034-02-28

AI Technical Summary

Technical Problem

When processing multiple varieties and small batches of non-metal rings in the prior art, there are defects such as high mold cost, long process preparation time, and the need to purchase special equipment, which cannot meet the needs of actual application.

Method used

An adjustable cutting device suitable for ring-shaped member processing includes a tool holder, an outer diameter machining assembly, an inner diameter machining assembly and a centering assembly, through a combination of a clamping rod, a threaded through hole, a locking assembly and a centering needle, Achieve rapid assembly and adjustment, suitable for processing of existing drilling machines.

Benefits of technology

This device can quickly realize the cutting and processing of non-metal ring parts, simplify processing processes, reduce costs, improve processing efficiency and accuracy, and is suitable for processing needs of multiple varieties and small batches of single pieces.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an adjustable cutting device and a machining drilling machine suitable for machining annular parts, which belong to the technical field of machining, and comprise a tool apron with a clamping rod, and an inner diameter machining assembly and an outer diameter machining assembly on the tool apron are arranged in a staggered and crossed manner, and a centering assembly is correspondingly arranged. The combined arrangement of the two cutters and the centering needle can be quickly realized, and the cutters in the two machining assemblies accurately correspond to the inner diameter and the outer diameter of the to-be-machined non-metal annular piece, so that the cutting machining requirement of the non-metal annular piece is met. The adjustable cutting device suitable for machining the annular parts is simple in structure, convenient to use, capable of effectively utilizing existing drilling machine equipment and rapidly completing machining of the non-metal annular parts, easy and convenient to install, high in machining precision of the annular parts, wide in application range, capable of being rapidly adjusted according to the size difference of the annular parts and high in machining efficiency. And the device is particularly suitable for machining multiple types of single-piece small-batch annular pieces, and has good practical value.
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Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical processing, and in particular relates to an adjustable cutting device and a processing drilling machine suitable for processing annular parts. Background Art

[0002] In the field of machinery, non-metallic ring parts are a typical part that plays an important role in a variety of application scenarios, such as sealing rubber gaskets, plastic gaskets, etc.

[0003] For the preparation of non-metallic ring parts, thermoplastic, stamping, hot cutting, laser cutting and other methods are usually used for forming. Among them, thermoplastic and stamping preparation require the production of special molds, hot cutting preparation requires the production of special hot cutting tools, and laser cutting requires the use of special non-metallic laser cutting equipment. The above methods are suitable for large-scale, single-variety processing. For multi-variety, single-piece small-batch non-metallic ring parts, the above methods have the defects of high mold cost, long process preparation time, and the need to purchase special equipment, and cannot fully meet the needs of actual applications. Utility Model Content

[0004] In response to one or more of the above-mentioned defects or improvement needs of the prior art, the utility model provides an adjustable cutting device and a processing drill machine suitable for ring-shaped parts processing, which can quickly realize the cutting processing of non-metallic ring-shaped parts with the help of the existing drill machine, simplify the processing procedures of non-metallic ring-shaped parts, and reduce the processing cost of non-metallic ring-shaped parts.

[0005] To achieve the above-mentioned purpose, one aspect of the utility model provides an adjustable cutting device suitable for processing annular parts, which includes a cutter seat, an outer diameter processing component, an inner diameter processing component and a centering component;

[0006] The tool holder comprises a block and a clamping rod arranged on one side of the block; a first threaded through hole and a second threaded through hole are opened on the block corresponding to the two processing components, and the two threaded through holes are staggered and intersected in the axial direction of the clamping rod, and the axis of the clamping rod passes through the axes of the two threaded through holes;

[0007] Each processing assembly comprises a screw rod threadedly connected to a corresponding threaded through hole and a tool detachably connected to one end of the screw rod; the tip of the tool protrudes from the surface of the tool holder and points to the side of the tool holder away from the clamping rod, and the distance between the tool of the outer diameter processing assembly and the axis of the clamping rod is greater than the distance between the tool of the inner diameter processing assembly and the axis of the clamping rod;

[0008] The centering assembly comprises a centering needle arranged on the side of the tool holder away from the clamping rod. The centering needle is coaxially arranged with the clamping rod, and the needle tip of the centering needle is flush with or exceeds the tool tips of the two tools in the axial direction of the clamping rod.

[0009] As a further improvement of the utility model, the two threaded through holes are staggered and orthogonally arranged in the axial direction of the clamping rod.

[0010] As a further improvement of the utility model, a locking assembly is respectively provided on the block corresponding to each screw rod;

[0011] The locking assembly comprises a locking hole which is opened in the block and intersects and communicates with the corresponding threaded through hole, and a locking member arranged in the locking hole. The locking member can press against the corresponding screw rod with its end after axial movement in the corresponding locking hole.

[0012] As a further improvement of the present invention, the axis of the locking hole is arranged orthogonally to the axis of the corresponding threaded through hole.

[0013] As a further improvement of the utility model, a mounting block is provided corresponding to the fixing of the tool on the screw rod;

[0014] One side of the mounting block is detachably connected to one end of the screw rod, and the mounting block is provided with a mounting through hole for connecting the tool, and a tool locking piece is provided corresponding to the mounting through hole.

[0015] As a further improvement of the utility model, a centering pin installation hole is provided on one side of the block corresponding to the centering pin, and a centering pin locking hole is provided corresponding to the centering pin installation hole;

[0016] Correspondingly, the centering pin is embedded in the centering pin mounting hole with one end thereof and is locked in place by a locking member arranged in the centering pin locking hole.

[0017] As a further improvement of the present invention, the outer circumference of the screw rod is provided with scales along the axial direction.

[0018] As a further improvement of the present invention, an anti-dropping piece is provided corresponding to the screw rod.

[0019] As a further improvement of the utility model, the anti-slip component is an anti-slip nut threadedly sleeved on one end of the screw rod extending out of the block.

[0020] Another aspect of the utility model provides a processing drilling machine suitable for processing ring parts, including a tool shaft for assembling and connecting the processing tool; the tool shaft is provided with the adjustable cutting device suitable for processing ring parts.

[0021] The above-mentioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0022] In general, compared with the prior art, the above technical solutions conceived by the utility model have the following beneficial effects:

[0023] (1) The utility model is an adjustable cutting device suitable for processing ring parts, which includes a tool holder with a clamping rod. By utilizing the staggered intersection setting of the inner diameter processing component and the outer diameter processing component on the tool holder and the corresponding setting of the centering component, the combination setting of the two cutting tools and the centering needle can be quickly realized, and the cutting tools in the two processing components can be accurately matched with the inner and outer diameters of the non-metallic ring parts to be processed, thereby meeting the cutting processing requirements of the non-metallic ring parts, effectively simplifying the processing procedures of the non-metallic ring parts, expanding the application scope of the device, and improving the efficiency of ring part processing.

[0024] (2) The adjustable cutting device of the utility model is suitable for processing annular parts. By preferably setting the specific structure of the two processing components and the knife seat, it is possible to realize the rapid assembly and adjustment of the adjustable cutting device, simplify the assembly and adjustment process of the device, improve the assembly accuracy of the device, and thus improve the processing accuracy of the annular parts.

[0025] (3) The adjustable cutting device of the utility model is suitable for processing ring parts. Through the corresponding arrangement of the locking parts and the anti-slip parts, it can further ensure the retention ability of the device after the processing size is set, improve the processing accuracy of the ring parts, and ensure the safety of the use of the adjustable cutting device.

[0026] (4) The utility model is suitable for processing ring parts. The processing drilling machine is matched with the existing drilling machine by setting an adjustable cutting device. The existing drilling machine can be used to quickly process non-metallic ring parts, avoiding the purchase of special equipment, reducing the cost of processing and using ring parts, and improving the economy of processing and using ring parts.

[0027] (5) The adjustable cutting device suitable for ring-shaped parts processing of the utility model has a simple structure and is easy to use. It can effectively utilize existing drilling machine equipment to quickly complete the processing of non-metallic ring-shaped parts. The installation process of the device is simple, the processing accuracy of the ring-shaped parts is high, and the application range is wide. It can be quickly adjusted according to the difference in the size of the ring-shaped parts. It is particularly suitable for the processing of ring-shaped parts of multiple varieties and single pieces in small batches, and has good practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 It is a structural front view of an adjustable cutting device suitable for processing annular parts in an embodiment of the utility model;

[0030] Figure 2It is a side view in the direction of A of the adjustable cutting device suitable for processing annular parts in the embodiment of the utility model;

[0031] Figure 3 It is a schematic diagram of a knife seat of an adjustable cutting device suitable for processing annular parts in an embodiment of the utility model;

[0032] In all the drawings, the same reference numerals represent the same technical features, specifically:

[0033] 1. Knife holder; 101. First threaded through hole; 102. Second threaded through hole; 103. Centering pin mounting hole; 104. First locking hole; 105. Second locking hole; 106. Centering pin locking hole; 107. Clamping rod;

[0034] 2. Outer diameter processing assembly; 201. First screw rod; 202. First mounting block; 203. First locking member; 204. First tool; 205. First tool locking member; 206. First scale; 207. First anti-slip member;

[0035] 3. Inner diameter processing assembly; 301. Second screw rod; 302. Second mounting block; 303. Second locking member; 304. Second tool; 305. Second tool locking member; 306. Second scale; 307. Second anti-slip member;

[0036] 4. Centering assembly; 401. Centering pin; 402. Centering pin locking piece. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0038] 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", "axial", "radial", "circumferential" 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.

[0039] 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 at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0040] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0042] Example:

[0043] See also Figure 1~Figure 3 The adjustable cutting device suitable for ring-shaped parts processing in the preferred embodiment of the utility model comprises a block-shaped tool holder 1 and an outer diameter processing component 2 and an inner diameter processing component 3 arranged on the tool holder 1. By assembling and connecting the tool holder 1 to the tool shaft of the processing drilling machine, ring-shaped parts can be processed from sheet / strip materials.

[0044] Specifically, the tool holder 1 in the preferred embodiment includes a block and a clamping rod 107 connected to the block. The clamping rod 107 is used to be assembled and connected with the tool shaft of the processing drilling machine to achieve the installation of the tool holder 1 on the processing drilling machine.

[0045] In a preferred embodiment, the axial direction of the clamping rod 107 is referred to as the first direction.

[0046] At the same time, a plurality of holes for assembling and connecting the outer diameter processing component 2 and the inner diameter processing component 3 are opened on the block in the preferred embodiment, so that the two components can be quickly assembled and flexibly adjusted.

[0047] In detail, corresponding to the setting of the outer diameter processing component 2, a first threaded through hole 101 is opened on the block of the tool holder 1; corresponding to the setting of the inner diameter processing component 3, a second threaded through hole 102 is opened on the block of the tool holder 1; and the axis of the clamping rod 107 passes through the axes of the two threaded through holes.

[0048] To avoid interference between the two processing components, the two threaded through holes are preferably spaced apart in the first direction, and the projections of the axes of the two threaded through holes on a plane perpendicular to the first direction form a certain angle with each other. That is, the first threaded through hole 101 and the second threaded through hole 102 are staggered and intersected on the block.

[0049] For example, in a specific preferred embodiment, the first threaded through hole 101 and the second threaded through hole 102 are staggered and orthogonal, that is, the axis projections of the two threaded through holes are orthogonal to each other.

[0050] In actual configuration, the structural composition of the outer diameter processing assembly 2 is preferably the same as that of the inner diameter processing assembly 3 , and the structure of the outer diameter processing assembly 2 is used as an example in the preferred embodiment.

[0051] like Figure 1 As shown in the figure, the outer diameter processing assembly 2 in the preferred embodiment includes a first screw rod 201 and a first mounting block 202. The first screw rod 201 is inserted into the first threaded through hole 101, and its two ends are respectively inserted from the first threaded through hole 101, and the first mounting block 202 is connected to one end of the first screw rod 201.

[0052] To facilitate determination of the tool direction on the first mounting block 202, it is preferably detachably connected to the end of the first screw rod 201 so that it can be locked and connected to the end of the first screw rod 201 after the first screw rod 201 is rotated into place.

[0053] In a specific preferred embodiment, a fixing blind hole is provided on one side of the first mounting block 202 for embedding the end of the first screw rod 201. At the same time, at least one fixing screw hole is provided on the first mounting block 202 corresponding to the fixing blind hole, and fixing screws are respectively threadedly connected in each fixing screw hole. After the first screw rod 201 is rotated into place, each fixing screw is tightened so that the end of each fixing screw is pressed against the outer periphery of the first screw rod 201, thereby fixing the first mounting block 202 to the end of the first screw rod 201, and then completing the positioning connection of the first tool 204 at the end of the first screw rod 201.

[0054] Preferably, each fixing screw hole is opened along the radial direction of the fixing blind hole.

[0055] More specifically, a mounting through hole is provided on the first mounting block 202 corresponding to the mounting of the first tool 204, for the first tool 204 to be connected to the first mounting block 202, so that the tip of the first tool 204 after the mounting is completed protrudes from one side surface of the tool holder 1 ( Figure 1 The bottom surface in the middle) and points to the side away from the clamping rod 107, such as Figure 1 as shown in .

[0056] Correspondingly, corresponding to the fixation of the first tool 204, a locking hole connected to the mounting through hole is opened on the first mounting block 202, and a first tool locking member 205 is arranged therein. The first tool locking member 205 is further preferably a locking screw, which matches the thread of the mounting through hole. The first tool 204 can be locked in place through the tightening action of the locking screw.

[0057] Furthermore, considering the locking and fixing of the first screw rod 201 on the tool holder 1, a locking assembly is also provided accordingly to achieve locking of the first screw rod 201 after it is adjusted into place.

[0058] In actual setting, the first screw rod 201 is matched with the first threaded through hole 101 through threads. By rotating the first screw rod 201 in the first threaded through hole 101, the extension length of one end used to connect to the first mounting block 202 can be adjusted, thereby matching the corresponding annular part processing outer diameter.

[0059] In order to achieve the locking of the first screw rod 201, a first locking hole 104 is opened on the tool holder 1 and is intersected and connected with the first threaded through hole 101, and a first locking member 203 with an end pointing to the first screw rod 201 is arranged in the first locking hole 104. The first locking member 203 presses its end against the outer periphery of the first screw rod 201, so that the locking of the first screw rod 201 can be achieved.

[0060] In a preferred embodiment, the first locking member 203 is a locking screw that is threadedly connected to the first locking hole 104 .

[0061] More preferably, the axis of the first locking hole 104 is perpendicular to the axis of the first threaded through hole 101 , that is, the first locking member 203 is pressed against the outer peripheral wall of the first screw rod 201 in the radial direction.

[0062] Further preferably, a first anti-slip member 207 is provided on the outer periphery of at least one end of the first screw rod 201 to prevent the axial movement of the first screw rod 201. In actual arrangement, the first anti-slip member 207 is preferably an anti-slip nut sleeved on the outer periphery of the first screw rod 201, such as Figure 1 as shown in .

[0063] In addition, in order to facilitate the quick reading of the fixed size of the first screw rod 201, a scale is preferably provided along the axial direction on its outer periphery, namely the first scale 206.

[0064] For the inner diameter processing assembly 3 in the preferred embodiment, its structure is as follows Figure 3 As shown in the figure, it includes a correspondingly arranged second screw rod 301, a second mounting block 302, a second locking member 303, a second tool 304, a second tool locking member 305, and a second threaded through hole 102 and a second locking hole 105 are opened on the tool holder 1, and preferably a second scale 306 and a second anti-slip member 307 are arranged on the second screw rod 301.

[0065] In the preferred embodiment, since the structural arrangement of the inner diameter processing assembly 3 is the same as that of the outer diameter processing assembly 2, they will not be described in detail here.

[0066] In actual operation, the length of the second screw rod 301 connected to the second mounting block 302 and extending from the center of the tool holder 1 is smaller than the length of the first screw rod 201 connected to the first mounting block 202 and extending from the center of the tool holder 1, so as to respectively make the positions of the two cutting tools correspond to the inner and outer diameter dimensions of the annular member.

[0067] Furthermore, a centering assembly 4 is provided on the side of the tool holder 1 facing away from the clamping rod 107 , for pressing the workpiece to be processed and determining the center of the ring-shaped part during the processing of the ring-shaped part.

[0068] like Figure 1 As shown in the figure, the centering assembly 4 in the preferred embodiment includes a centering pin 401 and a centering pin locking member 402 for locking the centering pin 401 on the knife holder 1; accordingly, a centering pin mounting hole 103 and a centering pin locking hole 106 are correspondingly provided on the knife holder 1.

[0069] Specifically, the centering pin installation hole 103 is coaxially arranged with the clamping rod 107 to ensure the accuracy of the center determination of the annular member, so that the centering pin 401 is coaxial with the clamping rod 107 after assembly and connection, and the axis of the centering pin 401 passes through the axes of the two screw rods.

[0070] At the same time, the tip of the centering needle 401 is flush with or exceeds the tips of the two tools in the axial direction of the clamping rod 107. This arrangement can ensure that the centering needle 401 contacts the material to be processed no later than the two tools during actual processing. In a preferred embodiment, the tip of the centering needle 401 is flush with the tips of the two tools.

[0071] Correspondingly, a centering pin locking member 402 is provided in the centering pin locking hole 106 , and is preferably a locking screw.

[0072] In actual settings, the adjustable cutting device in the preferred embodiment can adjust the distance between the two tools and the axis of the centering pin 401 as needed to process ring parts of different sizes. After completing the relevant settings of the two tools, the tool holder 1 only needs to be clamped on the tool shaft of the drilling machine with its clamping rod 107 to perform the corresponding cutting process.

[0073] As another aspect of the utility model, a processing drilling machine suitable for processing ring parts is also provided, which includes the above-mentioned adjustable cutting device, and the adjustable cutting device is assembled and connected to the tool shaft of the drilling machine.

[0074] The adjustable cutting device suitable for ring-shaped parts processing in the utility model has a simple structure and is easy to use. It can effectively utilize existing drilling machine equipment to quickly complete the processing of non-metallic ring-shaped parts. The installation process of the device is simple, the processing accuracy of the ring-shaped parts is high, and the application range is wide. It can be quickly adjusted according to the difference in the size of the ring-shaped parts. It is especially suitable for the processing of ring-shaped parts of multiple varieties and single pieces in small batches, and has good practical value.

[0075] It will be easily understood by those skilled in the art that 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 shall be included in the protection scope of the present invention.

Claims

1. An adjustable cutting device suitable for processing ring parts, characterized in that: It includes a tool holder, an outer diameter processing component, an inner diameter processing component and a centering component; The tool holder comprises a block and a clamping rod arranged on one side of the block; a first threaded through hole and a second threaded through hole are opened on the block corresponding to the two processing components, and the two threaded through holes are staggered and intersected in the axial direction of the clamping rod, and the axis of the clamping rod passes through the axes of the two threaded through holes; Each processing assembly comprises a screw rod threadedly connected to a corresponding threaded through hole and a tool detachably connected to one end of the screw rod; the tip of the tool protrudes from the surface of the tool holder and points to the side of the tool holder away from the clamping rod, and the distance between the tool of the outer diameter processing assembly and the axis of the clamping rod is greater than the distance between the tool of the inner diameter processing assembly and the axis of the clamping rod; The centering assembly comprises a centering needle arranged on the side of the tool holder away from the clamping rod. The centering needle is coaxially arranged with the clamping rod, and the needle tip of the centering needle is flush with or exceeds the tool tips of the two tools in the axial direction of the clamping rod.

2. The adjustable cutting device suitable for ring-shaped parts processing according to claim 1, characterized in that: The two threaded through holes are staggered and orthogonally arranged in the axial direction of the clamping rod.

3. The adjustable cutting device suitable for ring-shaped parts processing according to claim 1 or 2, characterized in that: A locking assembly is respectively arranged on the block corresponding to each screw rod; The locking assembly comprises a locking hole which is opened in the block and intersects and communicates with the corresponding threaded through hole, and a locking member arranged in the locking hole. The locking member can press against the corresponding screw rod with its end after axial movement in the corresponding locking hole.

4. The adjustable cutting device suitable for ring-shaped parts processing according to claim 3, characterized in that: The axis of the locking hole is arranged orthogonally to the axis of the corresponding threaded through hole.

5. The adjustable cutting device suitable for ring-shaped parts processing according to claim 1, 2 or 4, characterized in that: A mounting block is provided corresponding to the fixing of the tool on the screw rod; One side of the mounting block is detachably connected to one end of the screw rod, and the mounting block is provided with a mounting through hole for connecting the tool, and a tool locking piece is provided corresponding to the mounting through hole.

6. The adjustable cutting device suitable for ring-shaped parts processing according to claim 1, 2 or 4, characterized in that: A centering pin installation hole is provided on one side of the block corresponding to the centering pin, and a centering pin locking hole is provided corresponding to the centering pin installation hole; Correspondingly, the centering pin is embedded in the centering pin mounting hole with one end thereof and is locked in place by a locking member arranged in the centering pin locking hole.

7. The adjustable cutting device suitable for ring-shaped parts processing according to claim 1, 2 or 4, characterized in that: The outer circumference of the screw rod is provided with scales along the axial direction.

8. The adjustable cutting device suitable for ring-shaped parts processing according to claim 1, 2 or 4, characterized in that: An anti-dropping piece is arranged corresponding to the screw rod.

9. The adjustable cutting device suitable for ring-shaped parts processing according to claim 8, characterized in that: The anti-slipping piece is an anti-slipping nut which is threadedly sleeved on one end of the screw rod extending out of the block.

10. A drilling machine suitable for machining ring parts, comprising a tool shaft for assembling and connecting machining tools; characterized in that: The tool shaft is provided with an adjustable cutting device suitable for ring-shaped part processing as described in any one of claims 1 to 9.