An end mill for slide milling

Abstract

The utility model relates to a kind of end milling cutter for sliding block milling, it is used for processing deep slot sliding block being arranged on milling spindle.The end milling cutter includes the locating shaft connected with the insertion of milling spindle and the at least two adjusting components outwardly protruding and fixed to the locating shaft.Corresponding end face cutter head is provided on adjusting component.Adjusting component is used to adjust the vertical distance between end face cutter head and locating shaft.Adjusting component includes axial hole for accommodating end face cutter head and several adjusting pieces located in the circumferential axial hole.Several adjusting pieces are arranged on different height levels of axial hole in the mode of locking axial hole circumferential edge towards end face cutter head located in axial hole.The utility model is locked in the mode of multiple height levels, can form firm constraint to end face cutter head from multiple positions, effectively prevent end face cutter head from producing wobble due to cutting force in milling process, thereby significantly reduce processing error, ensure the milling accuracy of deep slot sliding block.

Description

Technical Field

[0001] This utility model relates to the field of slider milling technology, and in particular to a face milling cutter for slider milling. Background Technology

[0002] In the field of machining, high-precision milling of deep groove slides has always faced multiple technical bottlenecks. When dealing with complex deep groove structures, the limitations of traditional end mills in their design principles and manufacturing processes result in machining efficiency, accuracy, and reliability that fail to meet the demands of modern industry. Specifically, these core defects manifest themselves in the following ways:

[0003] Traditional milling cutters mostly employ a fixed cutter head structure, lacking dynamic adjustment capabilities for the connection position and angle between the cutter head and the shank. Their tool adjustment mechanisms are rigid, resulting in severely insufficient adaptability, especially for machining thin-walled, deep, and narrow groove sliders. The groove depth and width specifications of deep groove sliders vary significantly depending on the application scenario (such as mechanical transmission and precision guideways). Traditional milling cutters require adaptation by changing the cutter head or the entire tool, a cumbersome process. Traditional carbide milling cutters, due to their excessive overhang, lack rigidity and require multiple layer milling operations, leading to low efficiency and a tendency to accumulate errors. This limitation necessitates frequent tool changes when machining sliders of different specifications. Especially in multi-variety, small-batch production scenarios, tool change time accounts for more than 30% of the total machining time, severely impacting production cycle time.

[0004] Traditional milling cutters often rely on a single locking structure to fix the cutter head. During high-speed milling, the axial impact force and radial torque generated by the cutting force can easily cause the cutter head to loosen, leading to machining errors and even chipping. The fundamental flaw of traditional milling cutters lies in the disconnect between their design philosophy and modern machining requirements. For example, the fixed cutter head structure contradicts the flexibility required for machining deep grooves of various sizes, and the single locking method contradicts the dynamic stability requirements of high-speed cutting. This invention overcomes these technical bottlenecks at their structural root by utilizing the synergistic effect of axial holes and multi-level height adjustment components, along with an innovative design of helical milling teeth, providing a reliable solution for deep groove machining of slide blocks.

[0005] Furthermore, on the one hand, there are differences in understanding among those skilled in the art; on the other hand, the applicant studied a large number of documents and patents when making this utility model, but due to space limitations, not all details and contents were listed in detail. However, this does not mean that this utility model does not have the features of these prior art. On the contrary, this utility model has all the features of the prior art, and the applicant reserves the right to add relevant prior art to the background art. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a face milling cutter for sliding block milling, mounted on a milling spindle for machining deep groove sliding blocks. The face milling cutter includes a positioning shaft inserted into and connected to the milling spindle, and at least two adjusting assemblies fixed to the positioning shaft and extending outwards. Each adjusting assembly has a corresponding face cutting head. The adjusting assemblies are used to adjust the vertical distance between the face cutting head and the positioning shaft. Each adjusting assembly includes an axial hole for accommodating the face cutting head and several adjusting members located circumferentially within the axial hole. The adjusting members are arranged at different height levels within the axial hole in a manner that locks the circumferential edge of the axial hole toward the face cutting head located within the axial hole.

[0007] According to a preferred embodiment, a plurality of adjusting members are disposed on at least two levels of different heights on the outer edge of the axial hole. A locking member is provided between at least two adjacent adjusting members in the vertical direction.

[0008] According to a preferred embodiment, the adjusting member extends through the circumferential edge of the axial hole via a detachable threaded connection until it abuts against the end face cutter head to adjust the axial movement of the end face cutter head along the axial hole. The locking member is threadedly connected to the circumferential edge of the axial hole.

[0009] According to a preferred embodiment, a washer is provided between the adjusting member and the axial hole.

[0010] According to a preferred embodiment, the adjusting assembly further includes an axial member. The axial member is disposed on the axis of the axial hole to lock the end face cutter head axially. A through hole for receiving the axial member is provided on the axis of the end face cutter head. A connecting hole for threaded connection with the axial member is provided inside the axial hole, corresponding to the end face facing the through hole.

[0011] According to a preferred embodiment, the positioning shaft is threadedly connected to the milling spindle, and the positioning shaft is radially provided with a positioning hole that mates with the milling spindle and a positioning bolt for radial locking. The positioning bolt passes through the positioning shaft and is threadedly connected to the positioning hole of the milling spindle.

[0012] According to a preferred embodiment, the end-face cutter head is provided with a plurality of helically extending milling teeth around its axis. The milling teeth are provided with peripheral cutting edges on the periphery of the end-face cutter head.

[0013] According to a preferred embodiment, the milling tooth has a cutting edge that protrudes from the end face cutter head in the axial direction of the end face cutter head.

[0014] According to a preferred embodiment, a plurality of milling teeth are arranged around a through hole, and the axial center of the end face cutter head is recessed to form a cutting surface with the plurality of milling teeth.

[0015] According to a preferred embodiment, a plurality of milling teeth extend to within half the axial length of the end face cutter head to form an adjustment section for insertion into an axial hole. Attached Figure Description

[0016] Figure 1 This is a simplified structural schematic diagram of a face milling cutter for slide milling according to a preferred embodiment of the present invention.

[0017] Figure 2 This is a simplified structural diagram of a preferred embodiment of the end mill for slider milling after the positioning axis is separated from the milling spindle.

[0018] Figure 3 This is a simplified structural diagram of a face milling cutter for slide milling, provided by a preferred embodiment of the present invention, showing the removal of one face milling head.

[0019] List of reference numerals

[0020] 100: Positioning shaft; 101: Positioning hole; 102: Positioning bolt; 200: End face cutter head; 201: Through hole; 202: Milling gear; 300: Adjusting component; 301: Axial hole; 302: Adjusting element; 303: Locking element; 304: Axial element; 305: Connecting hole. Detailed Implementation

[0021] The following is a detailed explanation with reference to the accompanying drawings.

[0022] Example 1

[0023] This utility model provides a face milling cutter for slider milling, which is mounted on a milling spindle for machining deep groove sliders. For example... Figure 1As shown, the face milling cutter includes a positioning shaft 100 that is inserted and connected to a milling spindle, and at least two adjusting assemblies 300 fixed to the positioning shaft 100 and extending outward. Each adjusting assembly 300 has a corresponding face cutting head 200. The adjusting assembly 300 is used to adjust the vertical distance between the face cutting head 200 and the positioning shaft 100. The adjusting assembly 300 includes an axial hole 301 for accommodating the face cutting head 200 and a plurality of adjusting members 302 located circumferentially within the axial hole 301. The plurality of adjusting members 302 are arranged at different height levels in the axial hole 301 such that they lock the circumferential edge of the axial hole 301 toward the face cutting head 200 located within the axial hole 301. The positioning shaft 100 is inserted and connected to the milling spindle, providing a stable mounting base for the entire face milling cutter. The face cutting head 200 on each adjusting assembly 300 can have its vertical distance from the positioning shaft 100 adjusted by the adjusting assembly 300. This structural design allows the end mill to flexibly adapt to the machining of deep groove slides of different depths and specifications, greatly expanding the applicability of the equipment. The multi-level locking method can form a firm constraint on the end mill head 200 from multiple positions, effectively preventing the end mill head 200 from shaking due to cutting forces during milling, thereby significantly reducing machining errors and ensuring the milling accuracy of the deep groove slide.

[0024] According to a preferred embodiment, a plurality of adjusting members 302 are disposed on at least two levels of different heights on the outer edge of the axial hole 301. A locking member 303 is disposed between at least two adjacent adjusting members 302 in the vertical direction. The distribution of different levels makes the locking force on the end face cutter head 200 more uniformly distributed in the vertical direction. At the same time, the locking member 303 can further enhance the tightness of the connection between the adjusting member 302 and the circumferential edge of the axial hole 301. Through this multi-level locking structure, not only can the clamping force on the end face cutter head 200 be greatly improved, but it can also effectively resist the axial impact force and radial torque generated during the machining process, prevent the adjusting member 302 from loosening under long-term high-frequency vibration, and thus ensure the positional stability of the end face cutter head 200 when milling deep groove slides at high speed, and improve the consistency and pass rate of batch processed products.

[0025] According to a preferred embodiment, the adjusting member 302 is detachably threaded through the circumferential edge of the axial hole 301 until it abuts against the end face cutter head 200 to adjust the axial movement of the end face cutter head 200 along the axial hole 301. The locking member 303 is threadedly connected to the circumferential edge of the axial hole 301. The operator can precisely control the force and depth of the adjusting member 302 abutting against the end face cutter head 200 by rotating it, thereby achieving precise adjustment of the axial movement of the end face cutter head 200 along the axial hole 301 to meet the dimensional requirements of different deep groove machining. The threaded connection itself has good self-locking characteristics; once adjusted to the correct position, it can keep the position of the end face cutter head 200 stable and not easily shifted due to external forces. The detachable threaded connection design allows for convenient disassembly, replacement, and maintenance when the end face cutter head 200 wears or the adjusting member 302 malfunctions, reducing the difficulty and cost of equipment maintenance.

[0026] According to a preferred embodiment, a washer is provided between the adjusting member 302 and the axial hole 301. This washer can be a curved washer that conforms to the outer contour of the axial hole 301. When the adjusting member 302 is locked, the washer can evenly distribute the pressure of the adjusting member 302 on the circumferential edge of the axial hole 301 to a larger contact area. This effectively avoids problems such as wear, deformation, or even cracking caused by excessive local stress concentration at the edges of the adjusting member 302 and the axial hole 301, significantly extending the service life of the adjusting assembly 300. Simultaneously, the washer can fill the tiny gap between the adjusting member 302 and the axial hole 301, enhancing the sealing of the connection and preventing cutting fluid, metal chips, etc., generated during milling from entering the gap, thus avoiding these impurities affecting the adjustment accuracy of the adjusting member 302 and the overall structural stability of the adjusting assembly 300.

[0027] According to a preferred embodiment, the adjusting assembly 300 further includes an axial member 304. The axial member 304 is disposed on the axis of the axial hole 301 to lock the end face cutter head 200 axially. A through hole 201 for receiving the axial member 304 is provided on the axis of the end face cutter head 200. Figure 3As shown, the axial hole 301 has a connecting hole 305 threadedly connected to the axial component 304 on its end face facing the through hole 201. The axial component 304, through its threaded connection to the connecting hole 305, locks the end face cutter head 200 axially, working in conjunction with the circumferential locking of the end face cutter head 200 by the adjusting component 302. This combined axial and circumferential locking method achieves omnidirectional fixation of the end face cutter head 200 in both the axial and circumferential directions, significantly improving the overall rigidity of the end face cutter head 200 installation. Furthermore, the fit between the through hole 201 and the connecting hole 305 ensures accurate installation and positioning of the axial component 304, allowing the locking force to be evenly transmitted to the end face cutter head 200 along the axial direction. This prevents the end face cutter head 200 from deflecting due to uneven force distribution, ensuring the stability of the milling process and the machining accuracy of the deep groove slide block.

[0028] According to a preferred embodiment, such as Figure 2 As shown, the positioning shaft 100 is threadedly connected to the milling spindle, and the positioning shaft 100 has a positioning hole 101 that mates with the milling spindle and a positioning bolt 102 for radial locking. The positioning bolt 102 passes through the positioning shaft 100 and the milling spindle, threadedly connecting to the positioning hole 101. The threaded connection method is simple to operate, enabling quick assembly and disassembly of the positioning shaft 100 and the milling spindle, significantly improving the tool changing efficiency of the equipment and reducing auxiliary time during machining. The positioning bolt 102 effectively restricts the relative rotation between the positioning shaft 100 and the milling spindle, ensuring that they remain synchronized during high-speed rotation and avoiding vibration and impact caused by relative displacement. At the same time, it also improves the coaxiality of the positioning shaft 100 installation, reduces machining errors caused by eccentricity between the positioning shaft 100 and the milling spindle, and ensures the machining quality of the deep groove slider. It should be noted that the position of the positioning hole 101 is matched with the number of thread turns, so that when the positioning shaft 100 and the milling spindle are connected to the maximum number of thread turns, the position of the positioning hole 101 and the hole on the milling spindle correspond to each other, so as to achieve the fixing of the positioning bolt 102 to both.

[0029] According to a preferred embodiment, the end-face cutter head 200 is provided with a plurality of helically extending milling teeth 202 around its axis. The milling teeth 202 have circumferential cutting edges on the periphery of the end-face cutter head 200. During rotary cutting, they can gradually cut into the workpiece material, causing the cutting force to change gradually, thus making the cutting process smoother and reducing fluctuations in cutting force. This not only reduces the impact of machining vibration on the end-face cutter head 200 and the workpiece, but also extends the service life of the end-face cutter head 200. The helical structure of the milling teeth 202 helps to discharge chips generated during cutting along the helical direction, preventing chips from accumulating in the deep groove and affecting machining quality and cutting efficiency.

[0030] According to a preferred embodiment, the milling tooth 202 has a cutting edge protruding from the end face cutter head 200 in the axial direction. The cutting edge enhances the cutting capability of the end face cutter head 200 at the bottom of the deep groove. When machining the deep groove slider, the protruding cutting edge can more easily cut into the material at the bottom of the deep groove, efficiently removing excess material and significantly improving the machining efficiency at the bottom of the deep groove. Simultaneously, the protruding cutting edge ensures sufficient and uniform cutting at the bottom of the deep groove, guaranteeing the flatness of the bottom and allowing precise control of the machining depth, meeting the stringent requirements for bottom machining accuracy of the deep groove slider.

[0031] It should be noted that in this invention, one or two end-face cutter heads 200 can be provided to complete the milling of the deep groove slider. When two end-face cutter heads 200 are provided, the operator can perform coarse horizontal alignment of the two end-face cutter heads 200 using the preset scale on them. However, this alignment does not need to be perfectly consistent in the horizontal direction; the other end-face cutter head 200 supplements the milling of the first end-face cutter head 200. That is to say, even if the two end-face cutter heads 200 are not horizontally aligned, the vertically higher end-face cutter head 200 supplements the milling after the other end-face cutter head 200 has finished milling. This is why the technical effect of this invention can be achieved with only one end-face cutter head 200. This invention does not require two perfectly aligned end-face cutter heads 200 to achieve milling; the other end-face cutter head 200 is merely an auxiliary supplement to the milling process. Even if misaligned, it does not affect the realization of this invention.

[0032] According to a preferred embodiment, a plurality of milling teeth 202 are arranged around the through hole 201, and the axial center of the end face cutter head 200 is recessed, forming a cutting surface with the plurality of milling teeth 202. The cutting surface is concentrated in the area of ​​the milling teeth 202, while the central recess can avoid unnecessary interference and collision between the center of the end face cutter head 200 and the non-machined area of ​​the workpiece, thereby protecting the non-machined area of ​​the workpiece from damage and improving machining safety. At the same time, the surrounding milling teeth 202 distribution makes the cutting force uniformly distributed in the circumferential direction, reducing the off-center loading phenomenon during machining, which is beneficial to ensuring the roundness and surface roughness of the inner wall of the deep groove, and improving the surface quality of the deep groove slider.

[0033] According to a preferred embodiment, a plurality of milling teeth 202 extend to within half the axial length of the end face cutter head 200 to form an adjustment section for insertion into the axial hole 301. This arrangement balances cutting and adjustment requirements, ensuring that the milling teeth 202 have sufficient length to participate in cutting and can penetrate deep into the groove to meet the depth requirements of deep groove machining, while also reserving sufficient space for position adjustment of the end face cutter head 200 within the axial hole 301. During adjustment, the non-cutting adjustment section can move and be positioned stably within the axial hole 301, ensuring the convenience and accuracy of the adjustment operation. Simultaneously, since the milling teeth 202 do not extend to the entire axial length of the end face cutter head 200, collisions between the milling teeth 202 and the inner wall of the axial hole 301 during adjustment are avoided, thus protecting the integrity of the milling teeth 202.

[0034] It should be noted that the specific embodiments described above are exemplary. Those skilled in the art can devise various solutions inspired by the disclosure of this utility model, and these solutions all fall within the scope of this utility model and its protection scope. Those skilled in the art should understand that this utility model specification and its drawings are illustrative and do not constitute a limitation on the claims. The protection scope of this utility model is defined by the claims and their equivalents. This utility model specification contains multiple inventive concepts; phrases such as "preferred" or "according to a preferred embodiment" indicate that the corresponding paragraph discloses an independent concept. The applicant reserves the right to file divisional applications based on each inventive concept. Throughout the text, the feature introduced by "preferred" is only an optional mode and should not be construed as mandatory. Therefore, the applicant reserves the right to abandon or delete relevant preferred features at any time.

Claims

1. A face milling cutter for sliding block milling, mounted on a milling spindle for machining deep groove sliding blocks, characterized in that, include: A positioning shaft (100) is inserted and connected to a milling spindle; at least two adjusting components (300) are fixed to the positioning shaft (100) and extend outward, each adjusting component (300) having a corresponding end-face cutter head (200), the adjusting components (300) being used to adjust the vertical distance between the end-face cutter head (200) and the positioning shaft (100), wherein, The adjustment assembly (300) includes an axial hole (301) for accommodating the end face cutter head (200) and a plurality of adjustment members (302) located circumferentially in the axial hole (301). The plurality of adjustment members (302) are arranged at different height levels of the axial hole (301) in such a way that they lock the circumferential edge of the axial hole (301) toward the end face cutter head (200) located in the axial hole (301).

2. The end mill for slide milling according to claim 1, characterized in that, Several of the aforementioned adjusting elements (302) are disposed on at least two different height levels on the outer edge of the axial hole (301), wherein, A locking element (303) is provided between at least two adjacent adjusting elements (302) in the vertical direction.

3. The end mill for slide milling according to claim 2, characterized in that, The adjusting member (302) passes through the circumferential edge of the axial hole (301) in a detachable threaded connection until it abuts against the end face cutter head (200) to adjust the axial movement of the end face cutter head (200) along the axial hole (301). The locking member (303) is threadedly connected to the circumferential edge of the axial hole (301).

4. The end mill for slide milling according to claim 3, characterized in that, A washer is provided between the adjusting member (302) and the axial hole (301).

5. The end mill for slide milling according to claim 4, characterized in that, The adjusting assembly (300) further includes an axial member (304) disposed on the axis of the axial hole (301) to lock the end face cutter head (200) axially. The end face cutter head (200) has a through hole (201) on its axis for accommodating the axial member (304), and the axial hole (301) has a connecting hole (305) inside the end face facing the through hole (201) that is threaded to the axial member (304).

6. The end mill for slide milling according to claim 5, characterized in that, The positioning shaft (100) is threadedly connected to the milling spindle, and the positioning shaft (100) is radially provided with a positioning hole (101) that mates with the milling spindle and a positioning bolt (102) for radial locking. The positioning bolt (102) passes through the positioning shaft (100) and the milling spindle and is threadedly connected to the positioning hole (101).

7. The end mill for slide milling according to claim 6, characterized in that, The end face cutter head (200) is provided with a plurality of spirally extending milling teeth (202) around its axis, wherein, The milling tooth (202) has a peripheral cutting edge on the periphery of the end face cutter head (200).

8. The end mill for slide milling according to claim 7, characterized in that, The milling tooth (202) is provided with a cutting edge protruding from the end face cutter (200) in the axial direction of the end face cutter (200).

9. The end mill for slide milling according to claim 8, characterized in that, The milling teeth (202) are arranged around the through hole (201), and the axial center of the end face cutter head (200) is recessed and forms a cutting surface with the milling teeth (202).

10. The end mill for slide milling according to claim 9, characterized in that, A plurality of the milling teeth (202) extend to within half the axial length of the end face cutter head (200) to form an adjustment section for insertion into the axial hole (301).

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