Lengthened shockproof cutter bar of blade milling cutter

Abstract

The utility model relates to the technical field of milling, in particular to a lengthened shockproof cutter bar of a blade milling cutter. Comprising a lengthened cutter handle, a milling cutter seat arranged at the front end of the lengthened cutter handle, a section of positioning column integrally arranged at the front end of the milling cutter seat and used for positioning and mounting a piece milling cutter, a stud integrally arranged at the front end of the positioning column, and a clamping nut in threaded connection to the outer circle of the stud and used for clamping the piece milling cutter. Wherein a damping hole is formed in the front end of the lengthened cutter handle, and damping particles used for reducing vibration of the lengthened cutter handle during machining are filled in the damping hole. According to the utility model, the milling vibration can be reduced, and the quality of milling a groove body by using the blade milling cutter is improved.

Description

Technical Field

[0001] This utility model relates to the field of milling technology, specifically to an extended anti-vibration tool holder for a disc milling cutter. Background Technology

[0002] A milling cutter is a rotating cutting tool with one or more cutting teeth used for milling operations. During operation, the cutting teeth sequentially and intermittently remove the excess material from the workpiece. Milling cutters are mainly used on milling machines to machine planes, steps, grooves, shaped surfaces, and cut off workpieces.

[0003] Typical milling cutters include end mills and split milling cutters.

[0004] When machining a groove with a disc milling cutter, the tool holder for mounting the disc milling cutter needs to be lengthened due to the special shape of the product. However, the increased vibration after lengthening the tool holder leads to a decrease in the surface roughness of the machined groove, which fails to meet the quality requirements specified in the product design. Utility Model Content

[0005] To address the aforementioned problems, this utility model proposes an extended anti-vibration tool holder for a split milling cutter, aiming to reduce vibration during milling and improve the quality of groove milling using a split milling cutter. The specific technical solution is as follows:

[0006] An extended anti-vibration tool holder for a wafer chuck includes an extended tool holder, a chuck holder disposed at the front end of the extended tool holder, a positioning post integrally disposed at the front end of the chuck holder for positioning and mounting the wafer chuck, a stud integrally disposed at the front end of the positioning post, and a clamping nut threaded onto the outer circle of the stud for clamping the wafer chuck; wherein, a damping hole is provided at the front end of the extended tool holder, and the damping hole is filled with damping particles for reducing vibration of the extended tool holder during machining.

[0007] Preferably, the damping particles are tungsten powder.

[0008] Preferably, the tungsten powder is 180-250 mesh tungsten powder.

[0009] The milling cutter holder is provided with a tool holder connection hole, and the outer circle of the front end of the extended tool holder is positioned in the tool holder connection hole. The extended tool holder and the milling cutter holder are fixed together by welding.

[0010] Preferably, the outer circumferential surface of the milling cutter holder is provided with a plurality of welding holes communicating with the tool holder connection hole, and the welding holes are provided with plug welds for fixed connection with the extended tool holder; a circumferential weld is provided between the back end face of the milling cutter holder and the outer circumference of the extended tool holder.

[0011] Preferably, the milling cutter seat is provided with a damping butt joint hole communicated with the damping hole of the lengthened tool shank.

[0012] Preferably, the filling rate of the damping particles in the damping hole and the damping butt joint hole is 65-85%.

[0013] In the utility model, the positioning column of the lengthened tool shank is provided with a transmission key.

[0014] As a further improvement, the lengthened shockproof tool rod of the sheet milling cutter is further provided with a vibration frequency adjuster for fine adjustment of the vibration frequency, the vibration frequency adjuster comprises a light hole provided on the stud of the milling cutter seat and communicated with the damping butt joint hole of the milling cutter seat, a threaded hole provided at the front end of the light hole, an adjusting screw threadedly connected to the threaded hole of the milling cutter seat, and a smooth column provided at the end of the adjusting screw and inserted into the damping butt joint hole of the milling cutter seat, the smooth column is in sliding fit connection with the light hole.

[0015] The working principle of the vibration frequency adjuster is to change the depth of the smooth column on the adjusting screw into the damping hole or the damping butt joint hole, so as to change the filling rate of the damping particles in the damping hole and the damping butt joint hole, and the change of the filling rate of the damping particles will change the vibration frequency. Through experiments, the optimal vibration frequency can be found, so as to reduce the vibration of milling.

[0016] Preferably, the adjusting screw is provided with a lock nut.

[0017] Preferably, the front end of the smooth column of the adjusting screw is provided with a tapered center.

[0018] In the utility model, a gasket is arranged between the sheet milling cutter and the clamping nut.

[0019] Preferably, the milling cutter seat is a quenched and tempered steel milling cutter seat, the lengthened tool shank is a high-speed steel lengthened tool shank, and the welding between the quenched and tempered steel milling cutter seat and the high-speed steel lengthened tool shank is copper welding.

[0020] In the utility model, the lengthened tool shank and the tool shank connecting hole of the milling cutter seat are connected in interference fit.

[0021] The utility model has the advantages of:

[0022] Firstly, the lengthened shockproof tool rod of the sheet milling cutter is provided with a damping hole in the lengthened tool shank, and the damping hole is provided with damping particles, which is beneficial to reduce the vibration of milling, so as to improve the quality of milling the groove body by using the sheet milling cutter.

[0023] Second, the utility model discloses a kind of lengthened anti-vibration tool shank of slab cutter, it is provided with anti-vibration frequency regulator, it is filled with the damping particle in the damping hole in the depth of the smooth column entering into the damping butt joint hole or damping hole in front end of adjusting screw by it, the filling rate of damping particle in damping butt joint hole and damping hole is adjusted slightly, so as to change anti-vibration frequency, so that the vibration of milling is minimum, to further improve the quality of using slab cutter to mill groove.

[0024] Third, the utility model discloses a kind of lengthened anti-vibration tool shank of slab cutter, lengthened tool shank adopts high-speed steel lengthened tool shank, further improves the anti-vibration ability of milling cutter, to further improve the quality of using slab cutter to mill groove. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is the structure diagram of a kind of lengthened anti-vibration tool shank of slab cutter of the utility model.

[0026] In the drawing: 1, lengthened tool shank, 2, milling cutter seat, 3, slab cutter, 4, positioning column, 5, stud, 6, clamping nut, 7, damping hole, 8, damping particle, 9, tool shank connecting hole, 10, welding hole, 11, plug welding stud, 12, ring weld, 13, damping butt joint hole, 14, transmission key, 15, anti-vibration frequency regulator, 16, light hole, 17, threaded hole, 18, adjusting screw, 19, smooth column, 20, locknut, 21, taper center, 22, washer. DETAILED DESCRIPTION

[0027] The specific embodiment of the utility model is further described below in combination with the drawings and examples. The following examples are only used to more clearly illustrate the technical scheme of the utility model, and cannot limit the protection scope of the utility model.

[0028] As Figure 1 Shown as the embodiment of a kind of lengthened anti-vibration tool shank of slab cutter of the utility model, including lengthened tool shank 1, the milling cutter seat 2 of lengthened tool shank 1 front end is provided, the positioning column 4 for positioning and installing slab cutter 3 is integrally arranged in the front end of the milling cutter seat 2, stud 5 is integrally arranged in the front end of the positioning column 4, clamping nut 6 for clamping slab cutter 3 is screw-connected on the outer circle of stud 5;Wherein, the front end of lengthened tool shank 1 is provided with a damping hole 7, the damping hole 7 is filled with damping particle 8 for reducing the vibration of lengthened tool shank 1 when processing.

[0029] Preferably, the damping particle 8 is tungsten powder.

[0030] Preferably, the tungsten powder is 180 mesh-250 mesh tungsten powder.

[0031] In the embodiment, the milling cutter seat 2 is provided with a shank connecting hole 9, and the front end of the extended shank 1 is positioned in the shank connecting hole 9. The extended shank 1 and the milling cutter seat 2 are fixed together by welding.

[0032] Preferably, the outer circle of the milling cutter seat 2 is provided with a plurality of welding holes 10 in communication with the shank connecting hole 9 in the circumferential direction. The welding holes 10 are provided with plug welding studs 11 for fixed connection with the extended shank 1. The back end surface of the milling cutter seat 2 and the outer circle of the extended shank 1 are provided with a girth welding seam 12.

[0033] Preferably, the milling cutter seat 2 is provided with a damping butt joint hole 13 in communication with the damping hole 7 of the extended shank 1. The damping butt joint hole 13 is filled with damping particles 8.

[0034] Preferably, the filling rate of the damping particles 8 in the damping hole 7 and the damping butt joint hole 13 is 65-85%.

[0035] In the embodiment, the positioning column 4 of the extended shank 1 is provided with a transmission key 14.

[0036] As a further improvement, the extended shockproof shank of the sheet milling cutter of the embodiment is further provided with a vibration frequency adjuster 15 for fine adjustment of the vibration frequency. The vibration frequency adjuster 15 includes a light hole 16 provided on the stud 5 of the milling cutter seat 2 and in communication with the damping butt joint hole 13 of the milling cutter seat 2, a threaded hole 17 provided at the front end of the light hole 16, an adjusting screw 18 screwed in the threaded hole 17 of the milling cutter seat 2, and a smooth column 19 provided at the end of the adjusting screw 18 and inserted into the damping butt joint hole 13 of the milling cutter seat 2. The smooth column 19 is in sliding fit with the light hole 16.

[0037] The working principle of the vibration frequency adjuster 15 is to change the depth of the smooth column 19 of the adjusting screw 18 into the damping hole 7 or the damping butt joint hole 13, so as to change the filling rate of the damping particles 8 in the damping hole 7 and the damping butt joint hole 13. The change of the filling rate of the damping particles 8 will change the vibration frequency. Through experiments, the optimal vibration frequency can be found, so as to reduce the vibration of milling.

[0038] Preferably, the adjusting screw 18 is provided with a lock nut 20.

[0039] Preferably, the front end of the smooth column 19 of the adjusting screw 18 is provided with a tapered tip 21.

[0040] In the embodiment, a gasket 22 is provided between the sheet milling cutter 3 and the clamping nut 6.

[0041] Preferably, the milling seat 2 is a quenched and tempered steel milling seat, the lengthened tool shank 1 is a high-speed steel lengthened tool shank, and the welding between the quenched and tempered steel milling seat 2 and the high-speed steel lengthened tool shank 1 is a brazing welding.

[0042] In this embodiment, the lengthened tool shank 1 and the tool shank connecting hole 9 of the milling seat 2 are connected by interference fit.

[0043] The above is only the preferred embodiment of the present application, and it should be noted that for those skilled in the art, without departing from the technical principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should also be considered within the scope of protection of the present application.

Claims

1. An extended anti-vibration tool holder for a milling cutter, characterized in that, The tool holder includes an extended tool holder, a milling cutter holder disposed at the front end of the extended tool holder, a positioning post integrally disposed at the front end of the milling cutter holder for positioning and mounting a wafer milling cutter, a stud integrally disposed at the front end of the positioning post, and a clamping nut threaded onto the outer circle of the stud for clamping the wafer milling cutter; wherein, the front end of the extended tool holder is provided with a damping hole, and the damping hole is filled with damping particles for reducing the vibration of the extended tool holder during machining.

2. The extended anti-vibration tool holder of a disc milling cutter according to claim 1, characterized in that, The milling cutter holder is provided with a tool holder connection hole, and the outer circle of the front end of the extended tool holder is positioned in the tool holder connection hole. The extended tool holder and the milling cutter holder are fixed together by welding.

3. The extended anti-vibration tool holder of a disc milling cutter according to claim 2, characterized in that, The outer circumference of the milling cutter holder is provided with a number of welding holes that communicate with the tool holder connection hole. The welding holes are provided with plug welds for fixed connection with the extended tool holder. A circumferential weld is provided between the back end face of the milling cutter holder and the outer circumference of the extended tool holder.

4. The extended anti-vibration tool holder of a milling cutter according to claim 1, characterized in that, The milling cutter holder is provided with a damping docking hole that is connected to the damping hole of the extended tool holder, and the damping docking hole is filled with damping particles.

5. The extended anti-vibration tool holder of a disc milling cutter according to claim 1, characterized in that, The extended tool holder has a key for connection and transmission on its positioning pin.

6. The extended anti-vibration tool holder of a milling cutter according to claim 4, characterized in that, It is also provided with an anti-vibration frequency adjuster for fine adjustment of the anti-vibration frequency. The anti-vibration frequency adjuster includes a light hole disposed on the stud of the milling cutter holder and connected to the damping docking hole of the milling cutter holder, a threaded hole disposed at the front end of the light hole, an adjusting screw threadedly connected to the threaded hole of the milling cutter holder, and a smooth post disposed at the end of the adjusting screw and inserted into the damping docking hole of the milling cutter holder. The smooth post is slidably connected to the light hole.

7. The extended anti-vibration tool holder of a disc milling cutter according to claim 6, characterized in that, The adjusting screw is equipped with a locking nut to prevent loosening.

8. The extended anti-vibration tool holder of a disc milling cutter according to claim 6, characterized in that, The smooth column front end of the adjusting screw is provided with a tapered tip.

9. The extended anti-vibration tool holder of a disc milling cutter according to claim 1, characterized in that, A washer is provided between the end mill and the clamping nut.

10. The extended anti-vibration tool holder of a disc milling cutter according to claim 2, characterized in that, The milling cutter holder is a tempered steel milling cutter holder, and the extended tool holder is a high-speed steel extended tool holder. The welding between the tempered steel milling cutter holder and the high-speed steel extended tool holder is copper brazing.

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