Automatic milling cutter repairing device and method

Abstract

The invention relates to an automatic milling cutter repairing device and method, and relates to the technical field of machining, the automatic milling cutter repairing device comprises an electric automatic graduator, a fixing shaft arranged on one side of the electric automatic graduator, a milling cutter arranged at the end of the fixing shaft and a grinding wheel arranged on one side of the milling cutter, and an expansion sleeve used for being connected with the milling cutter is arranged on the fixing shaft. According to the invention, the milling cutter can be accurately ground, and the thickness and the inclination angle of each blade are consistent, so that the cutting efficiency and the processing quality of the milling cutter are improved, and the potential threat to the surface quality of a workpiece is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing, and in particular to an automatic repair device and method for a milling cutter. Background Art

[0002] The milling cutter plays a vital role in milling processing. It is a key tool to ensure that the machined surface reaches the expected quality. When performing the milling process, the milling cutter needs to accurately mill the defects on the surface of the workpiece to achieve a smooth and precise surface treatment. In order to maintain the sharpness and processing efficiency of the milling cutter, regular grinding of the milling cutter is an essential step.

[0003] However, traditional grinding methods mostly rely on universal tool grinding, which has some obvious limitations and quality problems. First, since the operation of universal tool grinding relies on manual adjustment, it is difficult to ensure that the thickness of each blade is completely consistent. Inconsistent blade thickness will cause uneven force on the milling cutter during cutting, affecting the cutting effect and shortening the service life of the milling cutter.

[0004] Secondly, the inconsistency of the inclination angle is also a serious problem. The inclination angle is the angle between the milling cutter blade and the cutting direction, which has a direct impact on the cutting efficiency and surface quality. If the inclination angle is inconsistent, it will not only reduce the cutting efficiency, but also cause uneven wear on the machined surface, affecting the overall quality of the workpiece.

[0005] These problems not only seriously affect the service life of the milling cutter, but also pose a hidden danger to the surface quality of the milled tube. For example, uneven blade thickness and inclination may cause irregular vibration during milling, which will not only reduce the processing accuracy, but also cause deformation or damage to the workpiece. In addition, inconsistent blade inclination may also lead to uneven distribution of cutting force, increase wear on the machine tool, and reduce the service life of the machine tool. Summary of the invention

[0006] The purpose of the present invention is to provide an automatic repair device and method for a milling cutter, so as to realize accurate grinding of the milling cutter, ensure that the thickness and inclination angle of each blade are consistent, and improve the cutting efficiency and processing quality of the milling cutter.

[0007] In order to achieve the above-mentioned purpose, the technical solution of the present invention provides an automatic repair device for a milling cutter, comprising an electric automatic indexer, a fixed shaft arranged on one side of the electric automatic indexer, a milling cutter arranged at the end of the fixed shaft, and a grinding wheel arranged on one side of the milling cutter, wherein the fixed shaft is provided with a clamping sleeve for connecting the milling cutter.

[0008] Preferably, the electric automatic indexer is provided with a chuck for connecting to the fixed shaft.

[0009] Preferably, the grinding wheel is mounted on an automatic tool changing system.

[0010] Preferably, the grinding wheel on the automatic tool changing system includes a butterfly grinding wheel and an arc grinding wheel.

[0011] The technical solution of the present invention also provides a method for automatically repairing a milling cutter, comprising the following steps:

[0012] Use a dial indicator to detect the runout of the fixed shaft and control the use of the arc grinding wheel by switching the grinding wheel through the tool changing system; the arc grinding wheel matches the arc of the cutter teeth, and the grinding amount is set according to the wear of the cutter teeth to grind all the arcs of the cutter teeth once to complete the grinding of the arc surface;

[0013] The electric automatic indexing plate is reset, and the grinding wheel is switched to the butterfly grinding wheel through the tool changing system again; the butterfly grinding wheel is matched with the side surface of the cutter teeth, and the grinding amount is also set according to the wear condition of the cutter teeth to grind all the side surfaces of the cutter teeth once, thus completing the grinding of the side surfaces;

[0014] Removing the milling cutter from the fixed shaft;

[0015] Install another milling cutter for grinding and repeat the above steps.

[0016] Preferably, the method comprises the steps of: setting parameters of the milling cutter in a machining center system, and also setting the rotation angle of each rotation of the electric automatic indexer, the rotation speed of the grinding wheel, and the switching program settings of the butterfly grinding wheel and the circular grinding wheel.

[0017] Preferably, the method further comprises the step of: the electric automatic indexer is accurately programmed according to the number of teeth of the milling cutter to set the angle of each rotation.

[0018] In summary, the present invention includes the following beneficial technical effects:

[0019] The present invention can realize accurate grinding of the milling cutter through high-precision components such as an electric automatic indexer and an automatic tool changing system. This automated grinding method can ensure that the thickness and inclination angle of each blade are consistent, thereby improving the cutting efficiency and processing quality of the milling cutter and reducing potential threats to the surface quality of the workpiece. In this way, the performance of the milling cutter can be significantly improved, its service life can be extended, and at the same time, the surface quality of the processed workpiece can be ensured to reach a higher standard. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The present invention is a schematic structural diagram of a milling cutter automatic repair device and method.

[0021] Figure numerals: 1. milling cutter; 2. electric automatic indexer; 3. fixed shaft; 4. expansion sleeve; 5. chuck; 6. grinding wheel. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] The embodiment of the present invention discloses an automatic repair device for a milling cutter, which is intended to improve the grinding level and efficiency of a milling cutter 1. The device upgrades the traditional universal tool grinding and repair technology to a modern grinding method suitable for a machining center. The core components of the device are composed of several precisely designed parts, including a fixed shaft 3, an electric automatic indexer 2, a locking sleeve 4, and an automatic tool changing system, which work together to achieve accurate and efficient grinding of the milling cutter 1.

[0024] The fixed shaft 3 is one of the key parts of the device. One end of the fixed shaft 3 is equipped with a clamping sleeve 4, which is used to tighten the milling cutter 1 and ensure the stability of the milling cutter 1 during the grinding process. The other end of the fixed shaft 3 is connected to the electric automatic indexer 2, which can be accurately set according to the number of teeth of the milling cutter 1, so that the teeth can be evenly distributed during the grinding process and the angle consistency of each rotation can be maintained, which is very important for achieving accurate grinding of the milling cutter 1. The fixed shaft 3 is adapted to the inner hole of the milling cutter 1, and the design of the clamping sleeve 4 allows the milling cutter 1 to be installed concentrically with the fixed shaft 3, which not only improves the grinding accuracy, but also enhances the stability of the grinding process. In this way, the milling cutter 1 can be firmly fixed on the fixed shaft 3, laying a solid foundation for the subsequent grinding work.

[0025] In the machining platform area of ​​the machining center, the milling cutter 1 is precisely fixed and ready for grinding. The design of this area allows the milling cutter 1 to remain stable during the grinding process, ensuring the consistency and accuracy of the grinding effect. The automatic tool changing system is another key part of the device. It not only installs butterfly grinding wheels and arc grinding wheels, but also can be programmed in the control system according to the geometric dimensions of the milling cutter 1 teeth. This intelligent design allows the grinding wheel 6 to automatically adjust according to the specific needs of the milling cutter 1, thereby achieving more accurate and efficient grinding.

[0026] In general, the design of this automatic repairing milling cutter 1 device, by integrating the advanced electric automatic indexer 2 and the automatic tool changing system, not only improves the automation level of the grinding of the milling cutter 1, but also greatly improves the grinding accuracy and efficiency. The application of this device will undoubtedly bring revolutionary changes to the field of grinding of milling cutters 1 and provide more efficient and accurate solutions for industrial production.

[0027] The method for automatically repairing a milling cutter 1 using the milling cutter automatic repair device comprises the following steps:

[0028] 1. Programming setting: Parameter setting of milling cutter 1 is performed in the machining center system, including the rotation angle of electric automatic indexer 2, the rotation speed of grinding wheel 6, and the switching program setting of butterfly grinding wheel and arc grinding wheel. This step is the basis of the entire grinding process, ensuring the accuracy and consistency of subsequent operations.

[0029] 2. Indexer programming: The electric automatic indexer 2 is accurately programmed according to the number of teeth of the milling cutter 1, and the angle of each rotation is set to ensure that the angle of each rotation is consistent, thereby ensuring uniform grinding of the teeth of the milling cutter 1.

[0030] 3. Installation of chuck 5 and fixed shaft 3: chuck 5 is fixed on electric automatic indexer 2, and fixed shaft 3 is installed on chuck 5. Use dial indicator to detect the runout and control it within 0.01mm to ensure high precision during grinding.

[0031] 4. Installation and fixation of the milling cutter 1: The milling cutter 1 is installed on the fixed shaft 3 and fixed by means of a clamping sleeve 4. The function of the clamping sleeve 4 is to ensure the concentricity of the inner hole of the milling cutter 1 and the fixed shaft 3 and improve the accuracy of grinding.

[0032] 5. Grinding of arc surface: After the milling cutter 1 is fixed in place, start the machining center to start grinding. The electric automatic indexer 2 is reset, and the grinding wheel 6 is switched to the arc grinding wheel through the tool changing system. The arc grinding wheel matches the arc of the cutter teeth, and the grinding amount is set between 0.01 and 0.02 mm according to the wear of the cutter teeth. The milling cutter 1 rotates one circle driven by the electric automatic indexer 2, and all the cutter teeth are ground once, completing the grinding of the arc surface.

[0033] 6. Side grinding: After the arc surface is repaired, the electric automatic indexing disk is reset, and the grinding wheel 6 is switched to the butterfly grinding wheel through the tool changing system. The butterfly grinding wheel matches the side of the cutter teeth, and the grinding amount is also set between 0.01 and 0.02 mm according to the wear of the cutter teeth. The milling cutter 1 rotates one circle, and all the side of the cutter teeth are ground once, completing the side grinding.

[0034] 7. Grinding completion and tool change: After the arc surface and side surface grinding of the milling cutter 1 are completed, the milling cutter 1 is removed from the fixed shaft 3, and then another milling cutter 1 can be installed for grinding, and the above steps are repeated to achieve continuous automatic grinding operations.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A copper tube milling cutter automatic repair device, characterized in that: The invention comprises an electric automatic indexer (2), a fixed shaft (3) arranged on one side of the electric automatic indexer (2), a milling cutter (1) arranged at the end of the fixed shaft (3), and a grinding wheel (6) arranged on one side of the milling cutter (1); the fixed shaft (3) is provided with a tightening sleeve (4) for connecting the milling cutter (1).

2. The automatic repair device for copper tube milling cutter according to claim 1, characterized in that: The electric automatic indexer (2) is provided with a chuck (5) for connecting to the fixed shaft (3).

3. The automatic repair device for copper tube milling cutter according to claim 2, characterized in that: The grinding wheel (6) is installed on the automatic tool changing system.

4. The automatic repair device for copper tube milling cutter according to claim 3 is characterized in that: The grinding wheel (6) on the automatic tool changing system includes a butterfly grinding wheel and an arc grinding wheel.

5. A copper tube milling cutter automatic repair method, characterized in that: The copper tube milling cutter automatic repair device according to claim 4 comprises the following steps: Use a dial gauge to detect the runout of the fixed shaft (3) and control it within 0.01 mm; The electric automatic indexer (2) is reset, and the grinding wheel (6) is switched to use the arc grinding wheel through the tool changing system; the arc grinding wheel matches the arc of the cutter teeth, and the grinding amount is set between 0.01 and 0.02 mm according to the wear of the cutter teeth; The milling cutter (1) rotates one circle under the drive of the electric automatic indexer (2), and all the cutter teeth are ground once, thus completing the grinding of the arc surface; The electric automatic indexing disc is reset, and the grinding wheel (6) is switched to the butterfly grinding wheel again through the tool changing system; the butterfly grinding wheel is matched with the side surface of the cutter teeth, and the grinding amount is also set between 0.01 and 0.02 mm according to the wear of the cutter teeth; The milling cutter (1) rotates one circle, and the side surfaces of all the teeth are ground once, thus completing the side surface grinding; Removing the milling cutter (1) from the fixed shaft (3); Install another milling cutter (1) for grinding and repeat the above steps.

6. The method for automatically repairing a copper tube milling cutter according to claim 5, characterized in that: The method comprises the steps of: setting parameters of the milling cutter (1) in a machining center system, and also setting the rotation angle of each rotation of the electric automatic indexer (2), the rotation speed of the grinding wheel (6), and the switching program setting of the butterfly grinding wheel and the circular arc grinding wheel.

7. The method for automatically repairing a copper tube milling cutter according to claim 6, characterized in that: Also includes Step: The electric automatic indexer (2) is accurately programmed according to the number of teeth of the milling cutter (1). Set the angle of each rotation.

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