Vibration reduction milling cutter arbor

Abstract

The utility model discloses a vibration reduction milling cutter arbor which comprises an integral cutter handle, the limiting blocks are symmetrically arranged at the bottom end of the integral cutter handle; the core shaft is fixedly arranged at the bottom end of the integral cutter handle and is clamped on the limiting block; the trapezoidal tool rests are circumferentially arrayed at the bottom end of the mandrel; and the blade is fixedly arranged on the trapezoidal knife rest. According to the vibration reduction milling cutter arbor provided by the utility model, the limiting blocks symmetrically arranged on the integral cutter handle are clamped on the core shaft, so that the whole cutter handle is more stable in the process of controlling the core shaft to rotate, vibration generated when the integral cutter handle and the core shaft rotate is reduced, and the blades are fixed through the trapezoidal cutter rests arrayed at the bottom end of the core shaft; through the arrangement of the blades, the blades can be driven to cut a workpiece when the mandrel rotates, the workpiece is machined through the multiple sets of blades, the machining efficiency is greatly improved, vibration generated when the cutter handle rotates is greatly reduced through cooperation of the whole cutter handle and the mandrel, and therefore the quality of the workpiece is improved to a great extent.

Description

Technical Field

[0001] The utility model relates to the technical field of vibration-damping milling cutters, in particular to a vibration-damping milling cutter rod. Background Art

[0002] In the oil groove processing technology on the crankshaft hole of the cylinder block, a solid integral tool holder is usually used to clamp a non-vibration-proof homemade extended tool bar and cooperate with a lamellar straight-tooth three-sided milling cutter to process the oil groove. However, the rigidity of the standard side-solidified integral tool holder and the non-vibration-proof homemade tool bar is poor. When cutting the workpiece, the integral tool holder and the tool bar do not have a vibration-proof effect, which reduces the cutting accuracy and thus reduces the processing efficiency. In addition, during the processing, the width, depth, tolerance value and roughness of the oil groove are difficult to meet the process requirements of the drawing, resulting in poor processing accuracy of the workpiece. Utility Model Content

[0003] The utility model aims to provide a vibration-damping milling cutter rod to solve the above-mentioned problem.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a vibration-damping milling cutter bar, comprising:

[0005] Integral handle;

[0006] A limit block symmetrically arranged at the bottom end of the integral tool handle;

[0007] A mandrel fixedly mounted on the bottom end of the integral tool handle and clamped on the limit block;

[0008] A trapezoidal tool holder arranged in a circular array at the bottom end of the mandrel;

[0009] The blade is fixedly mounted on a trapezoidal blade holder.

[0010] Preferably, an annular frame is fixedly mounted on the bottom end of the mandrel, and a trapezoidal tool holder is movably connected to the side wall of the annular frame.

[0011] Preferably, a screw is fixedly mounted on the side wall of the blade, and one end of the screw extends into the trapezoidal tool holder.

[0012] Preferably, a fixing block is fixedly installed inside the core shaft, and a side wall of the fixing block abuts against a limiting block.

[0013] Preferably, the side wall of the fixing block is provided with symmetrically arranged thread grooves.

[0014] Preferably, a bolt groove is formed on the side wall of the limit block, a bolt is movably installed in the bolt groove, and one end of the bolt extends into the bolt groove.

[0015] In the above technical scheme, a vibration-damping milling cutter rod provided by the utility model has the following beneficial effects: by installing the mandrel on the integral tool handle, the integral tool handle can control the rotation of the mandrel, and the limit blocks symmetrically arranged on the integral tool handle are clamped to the mandrel, so that the integral tool handle is more stable in the process of controlling the rotation of the mandrel, and the vibration generated when the integral tool handle and the mandrel rotate is reduced, and the blade is fixed by the trapezoidal tool holder arrayed at the bottom end of the mandrel, so that the blade can be driven to cut the workpiece when the mandrel rotates, and the workpiece is processed by setting multiple sets of blades, which greatly improves the processing efficiency, and the cooperation between the integral tool handle and the mandrel greatly reduces the vibration generated when the tool handle rotates, thereby greatly improving the quality of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the integral knife handle of the utility model;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the blade holder of the utility model.

[0020] Description of reference numerals:

[0021] 1. Integral tool handle; 2. Limit block; 3. Bolt groove; 4. Bolt; 5. Fixing block; 6. Thread groove; 7. Mandrel; 8. Ring frame; 9. Blade; 10. Screw; 12. Trapezoidal tool holder. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0023] like Figure 1-3 As shown, a vibration-damping milling cutter bar comprises:

[0024] Integral handle 1;

[0025] A limit block 2 symmetrically arranged at the bottom end of the integral knife handle 1;

[0026] A mandrel 7 fixedly mounted on the bottom end of the integral tool handle 1 and clamped on the limit block 2;

[0027] A trapezoidal tool holder 12 arranged in a circular array at the bottom end of the mandrel 7;

[0028] The blade 9 is fixedly mounted on the trapezoidal blade holder 12 .

[0029] Specifically, by installing a core shaft 7 at the bottom end of the integral tool handle 1, the rotation of the core shaft 7 can be controlled when the integral tool handle 1 rotates, and the vibration generated during the rotation is reduced by the cooperation between the integral tool handle 1 and the core shaft 7, so that the core shaft 7 drives the trapezoidal tool holder 12 to rotate more stably, thereby making the cutting of the blade 9 installed on the trapezoidal tool holder 12 more stable, and the workpiece is processed by multiple groups of blades 9 in the array, so that the processing efficiency is higher.

[0030] In the above embodiment, the spindle 7 is installed on the integral tool handle 1, so that the integral tool handle 1 can control the rotation of the spindle 7, and the limit blocks 2 symmetrically arranged on the integral tool handle 1 are clamped onto the spindle 7, so that the integral tool handle 1 is more stable in controlling the rotation of the spindle 7, and the vibration generated when the integral tool handle 1 and the spindle 7 rotate is reduced. The blade 9 is fixed by the trapezoidal tool holder 12 arrayed at the bottom end of the spindle 7, so that the blade 9 can be driven to cut the workpiece when the spindle 7 rotates. The workpiece is processed by setting multiple groups of blades 9, which greatly improves the processing efficiency, and the cooperation between the integral tool handle 1 and the spindle 7 greatly reduces the vibration generated when the tool handle rotates, thereby greatly improving the quality of the workpiece.

[0031] As an embodiment further provided by the present invention, an annular frame 8 is fixedly mounted on the bottom end of the core shaft 7 , and a trapezoidal tool holder 12 is movably connected to the side wall of the annular frame 8 .

[0032] Specifically, the annular frame 8 is installed at the bottom end of the core shaft 7 so that the annular frame 8 fixes the trapezoidal tool holder 12 , thereby making the trapezoidal tool holder 12 more stably fixed on the core shaft 7 .

[0033] As another embodiment further provided by the present invention, a screw 10 is fixedly mounted on the side wall of the blade 9 , and one end of the screw 10 extends into the trapezoidal tool holder 12 .

[0034] Specifically, the blade 9 is fixed to the trapezoidal blade holder 12 by means of screws 10 , so that a worker can quickly replace a damaged single blade 9 separately.

[0035] As another embodiment further provided by the present invention, a fixing block 5 is fixedly installed inside the core shaft 7 , and a side wall of the fixing block 5 abuts against the limiting block 2 .

[0036] Furthermore, the side wall of the fixing block 5 is provided with symmetrically arranged thread grooves 6 .

[0037] Furthermore, a bolt groove 3 is formed on the side wall of the limiting block 2 , and a bolt 4 is movably installed in the bolt groove 3 , with one end of the bolt 4 extending into the bolt groove 3 .

[0038] Specifically, the fixing block 5 installed in the core shaft 7 abuts against the limit block 2, so that the core shaft 7 is fixed more stably, and the bolt 4 installed in the bolt groove 3 is threadedly connected to the thread groove 6, so that the core shaft 7 is completely fixed to the bottom end of the integral tool handle 1.

[0039] Working principle: By installing the mandrel 7 on the integral tool handle 1, the integral tool handle 1 can control the rotation of the mandrel 7, and the limit block 2 symmetrically arranged on the integral tool handle 1 is clamped onto the mandrel 7, so that the limit block 2 limits the mandrel 7, so that the integral tool handle 1 is more stable in the process of controlling the rotation of the mandrel 7, and the bolt 4 installed in the bolt groove 3 is threadedly connected to the thread groove 6, so that the fixing block 5 is fixed on the limit block 2, so that the mandrel 7 is completely fixed on the integral tool handle 1, so that when the integral tool handle 1 rotates, it can drive the mandrel 7 to rotate, and the trapezoidal tool holder 12 of the circular array is fixed by the annular frame 8 installed at the bottom of the mandrel 7, so that when the mandrel 7 rotates, it can drive the trapezoidal tool holder 12 to rotate, and the blade 9 is fixed to the trapezoidal tool holder 12 by the screw 10, so that the blade 9 can cut the workpiece, and the worker can quickly replace the damaged workpiece.

[0040] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A vibration-damping milling cutter bar, characterized in that: include: Integral knife handle (1); A limit block (2) symmetrically arranged at the bottom end of the integral knife handle (1); A mandrel (7) fixedly mounted on the bottom end of the integral tool handle (1) and clamped on the limit block (2); A trapezoidal tool holder (12) arranged in a circular array at the bottom end of the mandrel (7); A blade (9) is fixedly mounted on a trapezoidal blade holder (12).

2. A vibration-damping milling cutter bar according to claim 1, characterized in that: An annular frame (8) is fixedly mounted on the bottom end of the core shaft (7), and a trapezoidal tool holder (12) is movably connected to the side wall of the annular frame (8).

3. A vibration-damping milling cutter bar according to claim 2, characterized in that: A screw (10) is fixedly mounted on the side wall of the blade (9), and one end of the screw (10) extends into the trapezoidal blade holder (12).

4. A vibration-damping milling cutter bar according to claim 1, characterized in that: A fixing block (5) is fixedly installed inside the core shaft (7), and a side wall of the fixing block (5) abuts against the limiting block (2).

5. A vibration-damping milling cutter bar according to claim 4, characterized in that: The side wall of the fixing block (5) is provided with symmetrically arranged thread grooves (6).

6. A vibration-damping milling cutter bar according to claim 4, characterized in that: A bolt groove (3) is provided on the side wall of the limit block (2), a bolt (4) is movably installed in the bolt groove (3), and one end of the bolt (4) extends into the thread groove (6).

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