Connecting frame assembly of cutter and cutter

Abstract

The utility model discloses a connecting frame assembly of a cutter and the cutter. The cutter comprises a blade assembly and a main shaft, and the blade assembly is fixedly connected to the main shaft through the connecting frame assembly; the connecting frame assembly comprises a connecting frame, a main shaft mounting hole is formed in the connecting frame and used for mounting a main shaft, and the lower end of the connecting frame is used for sleeving the blade assembly; the cutter locking ring is arranged at the lower end of the connecting frame in a sleeving mode and located on the lower side of the blade assembly so that the blade assembly can be locked to the connecting frame. The connecting frame assembly can stably connect the blade assembly to the main shaft, and the design of the connecting frame and the cutter locking ring can assist the blade assembly to adapt to main shafts of different sizes.

Description

Technical Field

[0001] This application relates to the field of processing tools, and particularly to a connecting frame assembly and a tool for a tool Background Art

[0002] In the field of cutting processing of materials, at present, sheet-shaped annular cutting tools are widely used for cutting. By rotating the annular cutting tool, the cutting edge on its outer circumference contacts the processing object, and then the cutting of the processing object is realized. The annular cutting tool needs to be fixed to the spindle of the processing tool. Currently, the connecting frame structure for fixing is complex and has low adaptability, and it cannot be applied to cutting tools and spindles of different sizes. Summary of the Utility Model

[0003] This application provides a connecting frame assembly and a tool for a tool to solve the problems of complex structure and low adaptability of the current connecting frame.

[0004] To solve the above technical problems, this application provides a connecting frame assembly for a tool. The tool includes a cutting tool assembly and a spindle. The cutting tool assembly is fixedly connected to the spindle through the connecting frame assembly. The connecting frame assembly includes: a connecting frame, which is formed with a spindle mounting hole for mounting the spindle, and the lower end of the connecting frame is used for sleeving the cutting tool assembly; a tool locking ring, which is sleeved on the lower end of the connecting frame and is located below the cutting tool assembly to lock the cutting tool assembly on the connecting frame.

[0005] In one embodiment, the surface of the tool locking ring facing the cutting tool assembly is formed with a groove, and the cutting tool assembly forms a protrusion facing the tool locking ring. In the state where the tool locking ring locks the cutting tool assembly on the connecting frame, the protrusion is located in the groove.

[0006] In one embodiment, the inner ring surface of the tool locking ring and the lower end of the connecting frame are both formed with threads, and the tool locking ring is threadedly connected to the lower end of the connecting frame.

[0007] In one embodiment, the tool further includes a wireless transmission module, which is arranged at the upper end of the connecting frame and is electrically connected to the cutting tool assembly.

[0008] In one embodiment, the upper end of the connecting frame is formed with a receiving groove for placing the wireless transmission module. The bottom of the receiving groove is formed with a through hole, and the spring pins of the wireless transmission module pass through the through hole to connect the cutting tool assembly.

[0009] In one embodiment, the connecting frame assembly further includes a spindle locking ring, which is arranged at the lower end of the connecting frame and is located below the tool locking ring to cooperate with the spindle mounting hole to fixedly connect the connecting frame and the spindle.

[0010] In one embodiment, the inner ring surface of the spindle locking ring is formed with threads, and the spindle locking ring is threadedly connected to the spindle.

[0011] To solve the above technical problems, the present application provides a tool, which includes the above-mentioned connecting frame assembly, tool assembly and spindle.

[0012] In one embodiment, the blade assembly includes: an annular blade, a sheet-like substrate and an ultrasonic vibrator; the annular blade is arranged on the outer periphery of the sheet-like substrate, and the ultrasonic vibrator is arranged on the surface of the sheet-like substrate; the vibration direction of the ultrasonic vibrator is the axial direction of the sheet-like substrate, and the vibration direction of the annular blade includes the radial direction of the sheet-like substrate.

[0013] In one embodiment, the sheet-like substrate is formed with a central axis mounting hole, the ultrasonic vibrator is arranged around the central axis mounting hole, and the sheet-like substrate forms damping holes between the central axis mounting hole and the ultrasonic vibrator; two circles of damping hole groups are formed around the central axis mounting hole, the inner circle damping hole group is arc-shaped holes arranged at intervals, and the outer circle damping hole group is arc-shaped holes and circular holes arranged alternately at intervals; in the radial direction, the intervals of the arc-shaped holes in the inner circle damping hole group are covered by the arc-shaped holes of the outer circle damping hole group.

[0014] The connecting frame assembly of the present application includes: a connecting frame, the connecting frame is formed with a spindle mounting hole for mounting the spindle, and the lower end of the connecting frame is used to sleeved with the blade assembly; a tool locking ring, sleeved on the lower end of the connecting frame and located below the blade assembly to lock the blade assembly on the connecting frame. The connecting frame assembly of the present application can stably connect the blade assembly to the spindle, and the designs of the connecting frame and the tool locking ring can assist the blade assembly to adapt to spindles of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to these drawings, where:

[0016] Figure 1 is a three-dimensional structure diagram of an embodiment of the tool of the present application;

[0017] Figure 2 is Figure 1 the exploded view of an embodiment of the tool of the present application shown;

[0018] Figure 3 is a three-dimensional structure diagram of an embodiment of the blade assembly of the present application;

[0019] Figure 4 is Figure 3 the sectional view of an embodiment of the blade assembly of the present application shown;

[0020] Figure 5 is Figure 4Enlarged view of part A of an embodiment of the blade assembly of the present application;

[0021] Figure 6 is a three-dimensional structural schematic diagram of another embodiment of the blade assembly of the present application;

[0022] Figure 7 is a three-dimensional structural schematic diagram of an embodiment of the connecting frame assembly of the present application;

[0023] Figure 8 is Figure 7 a cross-sectional view of an embodiment of the connecting frame assembly of the present application shown. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. It can be understood that the specific embodiments described herein are only used to explain the present application, rather than limiting the present application. In addition, it should be noted that for the convenience of description, only the parts related to the present application rather than all the structures are shown in the drawings. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by the present application.

[0025] Referring to "embodiment" herein means that the specific features, structures, or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The phrase appears in various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0026] As Figure 1 - Figure 2 , the tool of the present application belongs to an industrial processing tool and can be used for cutting processing. The tool 100 includes a spindle 11, a blade assembly 12, and a connecting frame assembly 13. The blade assembly 12 is fixedly connected to the spindle 11 through the connecting frame assembly 13. The spindle 11 can achieve high-speed rotation, which drives the blade assembly 12 to rotate to cut the processing object. In this embodiment, the blade assembly 12 can be set to a fixed size, and the size of the connecting frame assembly 13 is changed to adapt to spindles of different sizes.

[0027] Specifically for the blade assembly in the present application, as Figure 3 - Figure 6 , in this embodiment, the blade assembly 12 includes an annular blade 121, a sheet-shaped substrate 122, and an ultrasonic vibrator 123; the annular blade 121 is disposed on the outer periphery of the sheet-shaped substrate 122, and the ultrasonic vibrator 123 is disposed on the surface of the sheet-shaped substrate 122; the vibration direction of the ultrasonic vibrator 123 is the axial direction of the sheet-shaped substrate 122, and the vibration direction of the annular blade 121 is the radial direction of the sheet-shaped substrate 122.

[0028] The annular blade 121 can be a scribing blade for semiconductor wafer cutting, made of diamond. The tool 100 is applied in the field of wafer cutting and can achieve precise and high-quality cutting. The sheet-like substrate 122 is used to carry the annular blade 121 and the ultrasonic vibrator 123, and is also used to transmit the vibration of the ultrasonic vibrator 123 to the annular blade 121, mainly made of aluminum. The ultrasonic vibrator 123 is used to achieve ultrasonic vibration. Specifically, it can be a piezoelectric ceramic, which can convert electrical energy into mechanical energy. By applying high-frequency alternating current on the upper and lower surfaces of the piezoelectric ceramic, the piezoelectric ceramic is excited to perform high-frequency vibration.

[0029] The ultrasonic vibrator 123 is arranged on the surface of the sheet-like substrate 122, and its vibration direction is the axial direction of the sheet-like substrate 122, that is, the axis direction of the sheet-like substrate 122, which is also the vertical direction or the thickness direction of the surface of the sheet-like substrate 122. If a piezoelectric ceramic is selected as the ultrasonic vibrator 123, the piezoelectric ceramic can be subjected to corresponding polarization treatment to make it generate axial vibration. The vibration of the ultrasonic vibrator 123 is transmitted to the annular blade 121 on its outer periphery through the sheet-like substrate 122, so that the annular blade 121 mainly generates radial vibration, and the axial vibration of the annular blade 121 is relatively small and has little impact on processing.

[0030] In this embodiment, the annular blade 121 is arranged on the outer periphery of the sheet-like substrate 122. A slot can be formed on the outer periphery of the sheet-like substrate 122, and the annular blade 121 is embedded in the slot; the sheet-like substrate 122 can also be set as a clamping structure to clamp the annular blade 121 on the outer periphery.

[0031] In one embodiment, the sheet-like substrate 122 includes a carrier plate 1221 and a fixing plate 1222; the carrier plate 1221 forms a carrier table surface 1223, and the annular blade 121 is placed on the carrier table surface 1223, and the fixing plate 1222 is arranged on the carrier table surface 1223 to clamp the annular blade 121. The annular blade 121 can be fixed to the carrier plate 1221 in a hot pressing manner, a snap-fastening manner of the fixing plate 1222, or a glue-bonding manner. For example, a card slot 1224 can be formed on the carrier table surface 1223, and the fixing plate 1222 is snapped into the card slot 1224 to clamp the annular blade 121. Glue can also be set between the fixing plate 1222, the annular blade 121 and the carrier plate 1221 to fix the annular blade 121.

[0032] In one embodiment, the outer peripheral thickness of the sheet-like substrate 122 gradually decreases to form an inclined surface. The inclined design of the outer periphery can more effectively transmit the axial vibration into the radial vibration. Further, the inclination angle of the inclined surface relative to the surface of the sheet-like substrate is 55° to 80°. If the inclination angle is too large, the stiffness of the sheet-like substrate 122 will decrease, causing the tool to swing. If the inclination angle is too small, the radial amplitude will be low.

[0033] In this embodiment, the ultrasonic oscillator 123 is disposed on the surface of the sheet-like substrate 122, and can be specifically disposed on one side or both sides. Compared with the double-sided setting, the single-sided setting can make the structure of the overall blade assembly 12 more compact and lighter in weight under the working conditions that meet the processing requirements, which is more conducive to industrial implementation. In this embodiment, an installation groove 1225 is formed on the surface of the sheet-like substrate 122. For the structure including the carrier plate 1221 and the fixing plate 1222, the installation groove 1225 is formed on the surface of the carrier plate 1221. The ultrasonic oscillator 123 is then embedded in the installation groove 1225.

[0034] In one embodiment, the installation groove 1225 is filled with glue to fix the ultrasonic oscillator 123. Further, an avoidance groove 1226 is formed on the inner surface of the installation groove 1225, which can increase the bonding area, enhance the bonding force, and also play a role in preventing glue overflow. Specifically, two or three avoidance grooves 1226 can be formed on the bottom surface of the installation groove 1225.

[0035] The blade assembly 12 in this embodiment needs to be sleeved on the main shaft. The axial vibration of the ultrasonic oscillator 123 on the blade assembly 12 will not only be transmitted to the peripheral annular blade 121, but also be transmitted to the main shaft, affecting the service life of the main shaft. Therefore, in this embodiment, a damping hole 1227 is also provided between the ultrasonic oscillator 123 of the blade assembly 12 and the main shaft. Specifically, the sheet-like substrate 122 is formed with a central axis mounting hole 1228, and the ultrasonic oscillator 123 of this embodiment is arranged around the central axis mounting hole 1228, and the damping hole 1227 is specifically arranged between the central axis mounting hole 1228 and the ultrasonic oscillator 123.

[0036] In order to achieve a better damping effect, in one embodiment, two circles of damping hole groups are formed around the central axis mounting hole 1228. In the radial direction, the vibration wave transmitted from the ultrasonic oscillator 123 to the central axis mounting hole 1228 passes through at least one circle of damping holes. The vibration wave transmitted to the main shaft is reduced through the damping hole 1227, thereby reducing the influence on the main shaft. From the perspective of the damping principle, the more the number of circles of the damping hole group, the better, but too many circles will affect the structural stability of the entire blade assembly 12. Therefore, two circles of damping hole groups are adopted in this embodiment.

[0037] Further, in one embodiment, the inner circle of damping hole groups is arc-shaped holes arranged at intervals, and the outer circle of damping hole groups is arc-shaped holes and circular holes arranged alternately at intervals; in the radial direction, the intervals of the arc-shaped holes in the inner circle of damping hole groups are covered by the arc-shaped holes of the outer circle of damping hole groups. Combining damping with different shapes of damping holes 1227 can achieve a better damping effect. In this embodiment, specifically, the outer circle of damping hole groups is one arc-shaped hole and three circular holes arranged alternately at intervals.

[0038] Ultrasonic machining usually requires precise control. In addition to the above structural design, size design is also necessary. In one embodiment, the thickness ratio of the ultrasonic oscillator 123 to the thickness of the sheet-like substrate 122 is 1:10 to 1:15. Also considering the transmission of vibration, if the ratio is too large, it will cause excessive axial vibration, and if the ratio is too small, it will result in too small transmission power. Specifically, the thickness of the sheet-like substrate can be 3 mm to 10 mm, and the thickness of the ultrasonic oscillator can be 0.2 mm to 2 mm.

[0039] For the size of the annular blade, the thickness of the annular blade is 0.015 mm to 0.055 mm, and the size that the annular blade extends out of the sheet-like substrate is 0.2 mm to 1.2 mm, which can avoid the fracture problem while ensuring the chip removal effect.

[0040] The above-mentioned blade assembly 12 is arranged on the main shaft 11 through the connecting frame assembly 13. For the connecting frame assembly 13, as Figure 7 - Figure 8 , the connecting frame assembly 13 specifically includes a connecting frame 131 and a tool locking ring 132.

[0041] The connecting frame 131 is formed with a main shaft mounting hole 1311 for connecting the main shaft 11. The lower end of the connecting frame 131 is sleeved with the blade assembly 12. The tool locking ring 132 is also sleeved on the lower end of the connecting frame 131 and is located on the lower side of the blade assembly 12 to lock the blade assembly 12 on the connecting frame 131.

[0042] The structure of the connecting frame assembly 13 is simple, which can assist in the fitting and installation of blade assemblies 12 with different sizes and main shafts with different sizes. It can not only be applicable to the above-mentioned blade assemblies with ultrasonic vibration, but also be applicable to the current blade assemblies without ultrasonic vibration.

[0043] Threads are formed on both the inner ring surface of the tool locking ring 132 and the lower end of the connecting frame 131. The tool locking ring 132 is threadedly connected to the lower end of the connecting frame 131 and is locked through the threads.

[0044] In order to firmly lock the blade assembly 12, a groove 1321 is formed on the surface of the tool locking ring 132 facing the blade assembly 12, and a protrusion 124 is formed on the blade assembly 12 facing the tool locking ring 132. In the state where the tool locking ring 132 locks the blade assembly 12 on the connecting frame 131, the protrusion 124 is located in the groove 1321.

[0045] Furthermore, the connecting frame assembly 13 further includes a main shaft locking ring 133. The main shaft locking ring 133 is arranged at the lower end of the connecting frame 131 and is located on the lower side of the tool locking ring 132 to cooperate with the main shaft mounting hole 1311 to fixedly connect the connecting frame 131 and the main shaft 11, realizing the combination of the connecting frame 131 and the main shaft 11. Specifically, threads are formed on the inner ring surface of the main shaft locking ring 133, and the main shaft locking ring 133 is threadedly connected to the main shaft 11.

[0046] The blade assembly 12 is locked to the connecting frame 131 by a tool locking ring 132, and the connecting frame 131 is locked to the main shaft 11 by a main shaft locking ring 133. Subsequently, the rotation of the main shaft 11 can drive the rotation and cutting of the blade assembly 12. Moreover, in this embodiment, the ultrasonic vibration of the blade assembly 12 is realized by an ultrasonic vibrator 123, making the cutting effect better. The ultrasonic vibrator 123 specifically converts electrical energy into mechanical energy. Therefore, an electrical energy transmission module, specifically a wireless transmission module 14, is further included in the tool. The wireless transmission module 14 is disposed at the upper end of the connecting frame 131 and is electrically connected to the blade assembly 12.

[0047] Specifically, a receiving groove 1312 is formed at the upper end of the connecting frame 131 for placing the wireless transmission module 14. To simplify the electrical connection structure, a through hole is formed at the bottom of the receiving groove 1312. The spring pins 141 of the wireless transmission module 14 pass through the through hole and are electrically connected to the blade assembly 12. Specifically, the number of spring pins 141 is two, which are divided into a positive spring pin and a negative spring pin, and are respectively electrically connected to the ultrasonic vibrator 123 and the sheet substrate 122.

[0048] In summary, the tool of the present application uses an ultrasonic vibrator to realize the addition of ultrasonic vibration during cutting of the blade assembly, improving the cutting quality, and is particularly suitable for cutting hard and brittle materials; and uses a connecting frame assembly with a simple structure and high adaptability to fix the blade assembly to the tool main shaft, realizing stable cutting processing.

[0049] The terms "first", "second", and "third" in the present application are only for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", and "third" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. All directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products, or devices.

[0050] The above are only the embodiments of the present application, and do not thus limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall similarly be included within the patent protection scope of the present application.

Claims

1. A connecting frame assembly for a cutting tool, characterized in that, The tool includes a blade assembly and a spindle, and the blade assembly is fixedly connected to the spindle through the connecting frame assembly; the connecting frame assembly includes: A connecting frame, which is formed with a spindle mounting hole for mounting the spindle, and the lower end of the connecting frame is used to sleeved the blade assembly; A tool locking ring, which is sleeved on the lower end of the connecting frame and located on the lower side of the blade assembly to lock the blade assembly on the connecting frame.

2. The connecting frame assembly according to claim 1, characterized in that, The surface of the tool locking ring facing the blade assembly is formed with a groove, and the blade assembly forms a protrusion facing the tool locking ring. In the state where the tool locking ring locks the blade assembly on the connecting frame, the protrusion is located in the groove.

3. The connecting frame assembly according to claim 1, characterized in that, The inner ring surface of the tool locking ring and the lower end of the connecting frame are both formed with threads, and the tool locking ring is threadedly connected to the lower end of the connecting frame.

4. The connecting frame assembly according to claim 1, wherein The tool further includes a wireless transmission module, and the wireless transmission module is arranged at the upper end of the connecting frame and is electrically connected to the blade assembly.

5. The connecting frame assembly according to claim 4, characterized in that, The upper end of the connecting frame is formed with a receiving groove for placing the wireless transmission module, and a through hole is formed at the bottom of the receiving groove. The spring pins of the wireless transmission module pass through the through hole to connect the blade assembly.

6. The connecting frame assembly according to claim 1, wherein The connecting frame assembly further includes a spindle locking ring, and the spindle locking ring is arranged at the lower end of the connecting frame and is located on the lower side of the tool locking ring to cooperate with the spindle mounting hole to fix the connecting frame and the spindle.

7. The connecting frame assembly according to claim 6, wherein The inner ring surface of the spindle locking ring is formed with threads, and the spindle locking ring is threadedly connected to the spindle.

8. A cutting tool, characterized in that, The tool includes the connecting frame assembly, the tool assembly and the spindle according to any one of claims 1-7.

9. The cutting tool according to claim 8, wherein The blade assembly includes: an annular blade, a sheet-like substrate and an ultrasonic vibrator; the annular blade is arranged on the outer periphery of the sheet-like substrate, and the ultrasonic vibrator is arranged on the surface of the sheet-like substrate; the vibration direction of the ultrasonic vibrator is the axial direction of the sheet-like substrate, and the vibration direction of the annular blade includes the radial direction of the sheet-like substrate.

10. The cutting tool according to claim 9, characterized in that, The sheet-like substrate is formed with a central axis mounting hole, the ultrasonic vibrator is arranged around the central axis mounting hole, and the sheet-like substrate forms a damping hole between the central axis mounting hole and the ultrasonic vibrator; two circles of damping hole groups are formed around the central axis mounting hole. The inner circle damping hole group is arc-shaped holes arranged at intervals, and the outer circle damping hole group is arc-shaped holes and circular holes arranged alternately at intervals; in the radial direction, the intervals of the arc-shaped holes in the inner circle damping hole group are covered by the arc-shaped holes in the outer circle damping hole group.

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