Milling tool

Abstract

The application discloses a milling cutter and belongs to the technical field of cutters. The adjustable height mechanical structure formed by the position adjusting element when the rolling disc and the milling cutter body are installed can give the rolling disc a certain reaction force, so that the rolling grinding wheel continuously maintains contact with the machined material for cutting, and the main direction of the cutting force of the milling process is to pull up the workpiece, part of the pulling force can be offset through the structure, so that the surface quality and flatness of the workpiece can be better improved. In addition, the milling and micro-grinding are combined, and because the structure is an integrated design, the shape tolerance error caused by secondary clamping can be well avoided, the allowance control of the micro-grinding process can be well ensured, the surface smoothness is improved, and the structure is opposite to the surface of the workpiece, so that the pulling force of the workpiece generated in the initial cutting process can be well offset, and the machining of the super-high flatness is realized.

Description

Technical Field

[0001] This application relates to the field of cutting tool technology, and in particular to a milling tool. Background Technology

[0002] Currently, products processed by cutting instead of grinding in machining cannot achieve the surface quality of products processed by grinding. The product processing still basically requires two processes to complete the product processing.

[0003] The existing product process mainly achieves high-quality workpiece surface through two processes. However, splitting the process into two processes requires consideration of clamping accuracy and grinding accuracy, which further increases the cutting allowance in the finishing and grinding processes, making it impossible to further improve processing efficiency and quality. Utility Model Content

[0004] This application provides a milling tool. It solves the problem in the prior art where milling tools require multiple clamping operations during surface finishing, resulting in low machining efficiency and quality. The technical solution is as follows:

[0005] On the one hand, a milling cutter is provided, the milling cutter comprising: a milling cutter body, a roller, a grinding wheel and a position adjustment component;

[0006] The milling cutter body has an edge milling area and a central non-milling area;

[0007] The roller is installed in the central non-milling area and can move relative to the milling cutter body along the axial direction of the milling cutter body;

[0008] The grinding wheel is mounted on the side of the roller away from the milling cutter body and is rotatably connected to the roller. The axial direction of the grinding wheel is perpendicular to the axial direction of the milling cutter body, and the side of the grinding wheel to be ground protrudes from the lowest cutting edge distributed in the edge milling area.

[0009] The position adjustment component is connected to the milling cutter body and the roller respectively, and the position adjustment component is configured to drive the roller and the grinding wheel to move relative to the milling cutter body to maintain the target position.

[0010] Optionally, the position adjustment component includes: at least one elastic element and at least one set of magnetic elements;

[0011] The elastic element is distributed between the central non-milling area and the roller, with its two ends abutting against the milling cutter body and the roller, respectively.

[0012] A set of magnetic components includes two magnetic components arranged opposite each other, with the two magnetic components respectively mounted on the central non-milling area and the roller. The two faces of the two magnetic components with the same magnetic poles are arranged facing each other.

[0013] Optionally, the milling cutter that integrates cutting and grinding includes multiple sets of magnets arranged circumferentially around the milling cutter body.

[0014] Optionally, the milling cutter body includes: a cutter body portion and a fastener, the cutter body portion having a fastening hole, and the roller having a mounting through hole communicating with the fastening hole; one end of the fastener passes through the mounting through hole and is fastened to the fastening hole.

[0015] Optionally, the blade body has a positioning groove that matches the shape of the roller, and at least a portion of the roller is located within the positioning groove and is slidably connected to the positioning groove.

[0016] Optionally, the elastic element is a spring, which is sleeved on the fastener.

[0017] Optionally, there may be multiple elastic elements, which are arranged circumferentially around the milling cutter body.

[0018] Optionally, multiple sets of the magnetic components and multiple sets of the elastic components are arranged alternately.

[0019] Optionally, the roller has a limiting mounting groove and an opening communicating with the limiting mounting groove; a portion of the grinding wheel is located within the limiting mounting groove and has a communicating hole;

[0020] The milling tool that integrates cutting and grinding includes: a limiting locking component, one end of which passes through an opening and is fastened to the roller, and the grinding wheel is rotatably sleeved on the limiting locking component through a connecting hole.

[0021] Optionally, there are two grinding wheels, with their central axes arranged in parallel and the plane containing the central axes of the two grinding wheels perpendicular to the axial direction of the milling cutter body.

[0022] The beneficial effects of the technical solutions provided in this application include at least the following:

[0023] The roller and milling cutter body are mounted together via a position adjustment mechanism to form an adjustable-height mechanical structure. This structure provides a certain reaction force to the roller, ensuring that the grinding wheel maintains continuous contact with the workpiece for cutting. Simultaneously, the primary direction of the cutting force in milling is to pull the workpiece up; this structure counteracts some of the pulling force, thus improving the surface quality and flatness of the machined material. Furthermore, combining milling and micro-grinding in a single integrated design effectively avoids dimensional and positional tolerance errors introduced by secondary clamping, ensuring excellent control of the allowance in micro-grinding and achieving higher surface finish. This structure also reacts to the workpiece surface, effectively counteracting the workpiece pull generated during the initial cutting process, resulting in ultra-high flatness machining. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of a milling tool provided in an embodiment of this application;

[0026] Figure 2 yes Figure 1 An exploded view of a milling tool is shown.

[0027] Figure 3 yes Figure 1 The front view of the milling tool is shown;

[0028] Figure 4 This is an exploded view of a milling tool provided in an embodiment of this application;

[0029] Figure 5 This is a partial structural schematic diagram of a milling tool provided in an embodiment of this application;

[0030] Figure 6 This is a partial structural schematic diagram of another milling tool provided in the embodiments of this application.

[0031] The components include: milling cutter body 100, roller 200, grinding wheel 300, position adjustment component W, elastic component 400, magnet component 500, edge milling area Q1, central non-milling area Q2, milling insert A, lowest milling edge R, mounting groove c1, cutter body 101, fastener 102, fastening hole 101a, mounting through hole 201, limit mounting groove 202, connecting hole 301, opening 203, limit locking component 600, and positioning groove b1.

[0032] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0035] It should be understood that the phrase "one embodiment" or "an embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the present invention. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0036] Please refer to Figure 1 , Figure 2 and Figure 3 , Figure 1 This is a schematic diagram of the structure of a milling tool provided in an embodiment of this application. Figure 2 yes Figure 1 The diagram shown is an exploded view of a milling tool. Figure 3 yes Figure 1 The image shows a front view of a milling cutter. This milling cutter may include: a milling cutter body 100, a grinding disc 200, a grinding wheel 300, and a position adjustment component W. This milling cutter can be a tool that integrates cutting and grinding.

[0037] The milling cutter body 100 in the milling tool may have an edge milling region Q1 and a central non-milling region Q2. Here, the edge milling region Q1 of the milling cutter body 100 may be provided with a milling insert A.

[0038] The roller 200 in the milling cutter can be installed in the central non-milling area Q2 of the milling cutter body 100 and can move relative to the milling cutter body 100 along the axial direction of the milling cutter body 100.

[0039] The hobbing wheel 300 in the milling cutter can be mounted on the side of the roller 200 away from the milling cutter body 100 and can be rotatably connected to the roller 200. The axial direction of the hobbing wheel 300 can be perpendicular to the axial direction of the milling cutter body 100, and the circumferential side C of the hobbing wheel 300 to be ground can protrude beyond the lowest milling edge R distributed in the edge milling area Q1. For example, the range H of the circumferential side C of the hobbing wheel 300 protruding beyond the lowest milling edge R distributed in the edge milling area Q1 can be greater than 0 and less than or equal to 0.01 mm. It should be noted that the circumferential side C of the hobbing wheel 300 to be ground is the side currently in contact with the workpiece during grinding, and the lowest milling edge R distributed in the milling area Q1 is the milling edge of the milling insert A closest to the workpiece.

[0040] The number of grinding wheels 300 can be one or two. When there are two grinding wheels 300, the central axes of the two grinding wheels 300 can be set in parallel, and the plane containing the central axes of the two grinding wheels 300 is perpendicular to the axial direction of the milling cutter body 100.

[0041] The position adjustment component W can be connected to both the milling cutter body 100 and the grinding wheel 200. The position adjustment component W can be configured to drive the grinding wheel 200 and the grinding wheel 300 to move simultaneously relative to the milling cutter body 100 to maintain a target position. This target position is the position maintained by the grinding wheel 300 when its circumferential side C to be ground contacts the workpiece during milling.

[0042] In this embodiment, the roller 200 and the milling cutter body 100 are mounted on a height-adjustable mechanical structure via a position adjustment component W. This structure provides a certain reaction force to the roller 200, ensuring that the grinding wheel 300 maintains continuous contact with the workpiece for cutting. Simultaneously, the primary direction of the cutting force in milling is to pull the workpiece up; this structure can offset some of the pulling force, thereby improving the surface quality and flatness of the machined surface. Furthermore, combining milling and micro-grinding in a single integrated design effectively avoids the dimensional and positional tolerance errors introduced by secondary clamping, ensuring excellent control of the allowance in micro-grinding and achieving higher surface finish. Moreover, this structure reacts to the workpiece surface, effectively counteracting the workpiece pulling force generated during the initial cutting process, achieving ultra-high flatness machining.

[0043] In this embodiment, the position adjustment member W may include at least one elastic member 400 and at least one set of magnetic members 500. The elastic member 400 in the milling cutter may be distributed between the central non-milling region Q2 and the roller 200, with both ends respectively abutting against the milling cutter body 100 and the roller 200. The set of magnetic members 500 may include two magnetic members 500 arranged opposite each other. The two magnetic members 500 may be respectively mounted on the central non-milling region Q2 of the milling cutter body 100 and the roller 200, and the two surfaces of the two magnetic members 500 with the same magnetic poles are arranged facing each other so that the two magnetic members 500 repel each other magnetically.

[0044] In this way, the roller 200 and the milling cutter body 100 are mounted together via the variable-pitch elastic element 400 to form a mechanical structure with adjustable height. The magnet 500 provides a certain reaction force to the roller 200, ensuring that the grinding wheel 300 maintains continuous contact with the workpiece for cutting. Simultaneously, the main direction of the cutting force in milling is to pull the workpiece up; this structure can offset some of the pulling force, thus improving the surface quality and flatness of the machined material. Furthermore, combining milling and micro-grinding in an integrated design effectively avoids the dimensional and positional tolerance errors introduced by secondary clamping, ensuring excellent control of the allowance in micro-grinding and achieving higher surface finish. This structure also reacts to the workpiece surface, effectively counteracting the workpiece pulling force generated during the initial cutting process, achieving ultra-high flatness machining.

[0045] Optionally, at least one of the two magnetically identical magnetic components 500 in a set of magnetic components 500 can be a permanent magnet. For example, both magnetically identical magnetic components 500 in a set of magnetic components 500 can be permanent magnets. In this way, using permanent magnets for the magnetic components 500 facilitates installation, removal, and maintenance on the roller 200 and the milling cutter body 100.

[0046] In the embodiments of this application, please refer to Figure 4 , Figure 5 and Figure 6 , Figure 4 This is an exploded view of a milling tool provided in an embodiment of this application. Figure 5 This is a partial structural schematic diagram of a milling tool provided in an embodiment of this application. Figure 6 This is a partial structural schematic diagram of another milling cutter provided in an embodiment of this application. The milling cutter may include multiple sets of magnets 500, which can be arranged circumferentially around the milling cutter body 100. In this way, the multiple sets of magnets 500 can provide uniform magnetic force to the roller 200, ensuring the movement stability of the roller 200 and the grinding stability of the grinding wheel 300 disposed on the roller 200.

[0047] In the embodiments of this application, such as Figure 5 and Figure 6 As shown, both the milling cutter body 100 and the roller 200 can have mounting slots c1 for mounting the magnet component 500. Thus, by providing mounting slots c1 on the roller 200 and the milling cutter body 100, the magnet component 500 can be positioned and mounted. Furthermore, mounting the magnet component 500 within the mounting slots c1 effectively reduces the overall size of the milling cutter, ensuring a compact structure.

[0048] Optional, such as Figure 4 , Figure 5 and Figure 6 As shown, the milling cutter body 100 may include a cutter body portion 101 and a fastener 102. The cutter body portion 101 may have a fastening hole 101a, and the roller 200 may have a mounting through hole 201 communicating with the fastening hole 101a. One end of the fastener 102 may pass through the mounting through hole 201 and be fastened to the fastening hole 101a in the cutter body portion 101. In this case, the roller 200 and the milling cutter body 100 can be installed and adjusted by adjusting the relative connection position of the fastener 102 and the fastening hole 101a of the cutter body portion 101. Here, the cutter body portion 101 may be provided with a milling insert R.

[0049] For example, fastener 102 can be an adjusting screw, fastening hole 101a can be a screw hole, roller 200 and milling cutter body 100 are installed and adjusted by screws and variable pitch spring, and are also assisted by a strong magnet. Grinding wheel 300 is installed on roller 200 with lateral clearance, and grinding wheel 300 can rotate on its own.

[0050] In the embodiments of this application, such as Figure 5 and Figure 6 As shown, the cutter body 101 has a positioning groove b1 distributed in the central non-milling area Q2 that matches the shape of the roller 200. At least a portion of the roller 200 is located within the positioning groove b1 and can be slidably connected to the positioning groove b1. In this way, the positioning groove b1 enables the positioning and installation of the roller 200, and ensures the installation accuracy of the roller 200.

[0051] For example, the cross-sectional shape of the roller 200 can be circular, and the shape of the positioning groove b1 can also be circular. The roller 200 can be clearance-fitted with the positioning groove b1.

[0052] In this embodiment, the elastic element 400 in the milling cutter can be a spring, which can be sleeved on the fastener 102. For example, the spring can be a helical spring.

[0053] Here, there can be multiple elastic elements 400, which can be arranged circumferentially around the milling cutter body 100. In this way, multiple elastic elements 400 can provide uniform magnetic force to the roller 200, ensuring the movement stability of the roller 200 and the grinding stability of the grinding wheel 300 set on the roller 200.

[0054] For example, multiple sets of magnetic components 500 and multiple elastic components 400 can be arranged alternately. For instance, multiple sets of magnetic components 500 and multiple elastic components 400 can be alternately and equidistantly arranged.

[0055] Optional, such as Figure 4 and Figure 5 As shown, the roller 200 may have a limiting mounting groove 202 and an opening 203 communicating with the limiting mounting groove 202. A portion of the grinding wheel 300 may be located within the limiting mounting groove 202 and have a communicating hole 301. The milling tool that integrates cutting and grinding includes: a limiting locking member 600, one end of which passes through the opening 203 and is fastened to the roller 200. The grinding wheel 300 can be rotatably sleeved on the limiting locking member 600 through the communicating hole 301.

[0056] For example, after the grinding wheel 300 is installed in the limiting mounting groove 202 in the roller 200, one end of the limiting locking member 600 passes through the opening 203 and the connecting hole 301 in the grinding wheel 300 and is then securely connected to the roller 200. This facilitates the installation, disassembly, and maintenance of the grinding wheel 300.

[0057] In summary, this application provides a milling tool that may include: a milling cutter body 100, a roller 200, a grinding wheel 300, at least one elastic element 400, and at least one set of magnetic elements 500. The roller 200 and the milling cutter body 100 are mounted together via a variable-pitch spring to form a shape-adjustable height mechanical structure. The magnetic elements 500 provide a certain reaction force to the roller 200, ensuring that the grinding wheel 300 maintains continuous contact with the workpiece for cutting. Since the primary direction of the cutting force in milling is to pull the workpiece up, this structure can offset some of the pulling force, thereby improving the surface quality and flatness of the machined surface. Furthermore, combining milling and micro-grinding in a single integrated design effectively avoids the dimensional and positional tolerance errors introduced by secondary clamping, ensuring excellent control of the allowance in micro-grinding and achieving higher surface finish. Simultaneously, this structure reacts to the workpiece surface, effectively offsetting the workpiece pulling force generated during the initial cutting process, achieving ultra-high flatness machining.

[0058] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "multiple" refers to two or more unless otherwise expressly defined.

[0059] The above description is merely an optional embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A milling tool, characterized in that include: Milling cutter body, roller, grinding wheel and position adjustment parts; The milling cutter body has an edge milling area and a central non-milling area; The roller is installed in the central non-milling area and can move relative to the milling cutter body along the axial direction of the milling cutter body; The grinding wheel is mounted on the side of the roller away from the milling cutter body and is rotatably connected to the roller. The axial direction of the grinding wheel is perpendicular to the axial direction of the milling cutter body, and the side of the grinding wheel to be ground protrudes from the lowest cutting edge distributed in the edge milling area. The position adjustment component is connected to the milling cutter body and the roller respectively, and the position adjustment component is configured to drive the roller and the grinding wheel to move relative to the milling cutter body to maintain the target position.

2. The milling tool according to claim 1, characterized in that The position adjustment component includes: at least one elastic element and at least one set of magnetic elements; The elastic element is distributed between the central non-milling area and the roller, with its two ends abutting against the milling cutter body and the roller, respectively. A set of the magnetic components includes two magnetic components arranged opposite each other. The two magnetic components are respectively installed in the central non-milling area and the roller, and the two faces of the two magnetic components with the same magnetic poles are arranged facing each other.

3. The milling tool according to claim 2, characterized in that The milling cutter that integrates cutting and grinding includes multiple sets of magnets arranged circumferentially around the milling cutter body.

4. The milling tool according to claim 2, characterized in that The milling cutter body includes a cutter body portion and a fastener. The cutter body portion has a fastening hole, and the roller has a mounting through hole communicating with the fastening hole. One end of the fastener passes through the mounting through hole and is fastened to the fastening hole.

5. The milling tool according to claim 4, characterized in that The blade body has a positioning groove that matches the shape of the roller, and at least a portion of the roller is located within the positioning groove and is slidably connected to the positioning groove.

6. The milling tool according to claim 4, characterized in that The elastic element is a spring, and the spring is sleeved on the fastener.

7. The milling tool according to claim 6, characterized in that The number of elastic elements is multiple, and the multiple elastic elements are arranged circumferentially around the milling cutter body.

8. The milling tool according to claim 7, characterized in that, Multiple sets of the magnetic components and multiple sets of the elastic components are arranged alternately.

9. A milling tool according to any one of claims 2-8, characterised in that The roller has a limiting mounting groove and an opening communicating with the limiting mounting groove; a portion of the grinding wheel is located within the limiting mounting groove and has a communicating hole; The milling tool includes: a limiting locking member, one end of which passes through an opening and is fastened to the roller, and the grinding wheel is rotatably sleeved on the limiting locking member through a connecting hole.

10. A milling tool according to any one of claims 1-8, characterised in that The number of grinding wheels is two, the central axes of the two grinding wheels are arranged in parallel, and the plane containing the central axes of the two grinding wheels is perpendicular to the axial direction of the milling cutter body.

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