A turning and milling combined eccentric tool holder

Abstract

The application discloses a turning and milling combined eccentric cutter holder, which comprises a machine tool bed, a spindle box, a spindle, a spindle axis, a cutter holder and a cutter, the inside of the machine tool bed is provided with the spindle box, the center of the spindle box is provided with the spindle axis, the outer circumferential surface of the spindle axis is sleeved with the spindle, the bottom of the spindle is fixedly connected with the cutter holder, the center of the cutter holder is positioned on the spindle axis, and the outside of the center of the bottom of the cutter holder is eccentrically connected with the cutter; the flange end surface of the cutter holder is tightly combined with the spindle connection end surface without gaps, the cutter holder is fixedly connected with the spindle, the cutter is fixedly installed in the radial groove, the eccentric position of the cutter in the radial groove can be adjusted, the rigidity of the cutter is enhanced, errors in the process of the cutter are eliminated, the surface of a workpiece produced is smoother, the turning and milling combined eccentric cutter holder has a milling cutter holder avoiding position, the milling cutter holder can be used without interference, the overall design structure is simple, the functionality is strong, and the equipment greatly improves the quality of produced products.

Description

Technical Field

[0001] This invention relates to the field of mechanical production and processing equipment technology, specifically to a milling-turning composite eccentric tool holder. Background Technology

[0002] Traditional milling-turning tool holders consist of a machine tool bed, spindle box, spindle, spindle axis, tool holder, and cutting tool. Typically, the tool holder is connected to the spindle. Traditional equipment often has a small tool holder design, with the cutting tool connected to the center of the tool holder at the bottom and rotating to grind the workpiece. During machining, due to the gap between the spindle axis and the spindle, tool vibration occurs, causing concave lines on the workpiece surface. Furthermore, traditional equipment is prone to errors during tool changes, affecting product accuracy. These problems necessitate improvements to traditional equipment. Therefore, designing a new type of eccentric milling-turning tool holder is the problem we need to solve.

[0003] Currently, it is difficult to eliminate tool vibration during the machining process in milling and turning. Furthermore, when milling is used for machining with large allowances and large diameters, the turning range of the tool is large and the tool strength requirements are high. It is difficult to adjust the large diameter position and machining strength of the tool, and it is also difficult to meet the dimensional and appearance precision requirements of the milling and turning process.

[0004] Therefore, it is necessary to develop a milling-turning composite eccentric tool holder. Summary of the Invention

[0005] The purpose of this invention is to provide a milling-turning composite eccentric tool holder, which solves the problems mentioned in the background art and can meet the requirements of dimensional accuracy and tool strength in machining.

[0006] To solve the above problems, the present invention provides the following technical solution: a milling and turning compound eccentric tool holder, comprising a machine tool bed, a spindle box, a spindle, a spindle shaft, a tool holder, and a cutting tool. The spindle box is provided inside the machine tool bed, and a spindle shaft is provided at the center of the spindle box. The spindle is sleeved on the outer circular surface of the spindle shaft. The tool holder is fixedly connected to the bottom of the spindle. The center of the tool holder is positioned at the spindle shaft, and the cutting tool is eccentrically connected to the outer side of the bottom center of the tool holder.

[0007] In the above structure, the tool holder is a flange with a radial groove, the tool is installed and fixed in the radial groove, and the eccentric position of the tool in the radial groove can be adjusted.

[0008] In the above structure, the flange end face of the tool holder is tightly fitted with the spindle connection end face without any gap.

[0009] In the above structure, the cutting tool is detachably connected to the tool holder by means of screws.

[0010] In the above structure, the radial groove of the tool holder flange is provided with multiple conical holes of equidistant precision surfaces that mate with the conical surface of the tool assembly.

[0011] In the above structure, the central part of the tool holder is provided with a clearance for clamping the milling cutter, and the spindle axis can use the milling cutter independently without interfering with the tool holder.

[0012] In the above structure, the main spindle is designed as an inverted T-shape, with the axis of the main spindle coinciding with the axis of the spindle center, and the outer circular surface tightly fitted for positioning and fixation.

[0013] In the above structure, the cutting tool is fixed to the spindle by countersunk screws on the flange.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention adopts a method in which the flange end face of the tool holder is tightly fitted with the connecting end face of the spindle without gaps, the tool holder is fixedly connected to the spindle, and the tool is installed and fixed in the radial groove. The eccentric position of the tool in the radial groove can be adjusted, which enhances the rigidity of the tool and eliminates the errors that are easily generated during the tool process, making the surface of the produced workpiece smoother. The milling and turning compound eccentric tool holder has a clearance space for the milling cutter holder, and the milling cutter holder can be used without interference. The overall design structure is simple, the functionality is strong, and the equipment greatly improves the quality of the produced products.

[0015] The technical solutions in the embodiments of the present invention will now be clearly and completely described with reference to the accompanying drawings. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a milling and turning composite eccentric tool holder according to the present invention; Figure 2 This is a bottom view of the tool holder according to an embodiment of the present invention; Figure 3 This is a cross-sectional schematic diagram of the tool holder structure according to an embodiment of the present invention.

[0017] Figure Labels 1-Machine bed, 2-Spindle box, 3-Spindle, 4-Spindle axis, 5-Tool holder, 6-Tool, 7-Milling cutter holder, 8-Conical hole, 9-Screw, 10-Radial groove, 11-Counterhead screw, 12-Clearing space. Detailed Implementation

[0018] To better understand the technical content of the present invention, the technical solution of the present invention will be further introduced and explained below with reference to specific embodiments, but is not limited thereto.

[0019] Please see Figure 1-3As shown, the present invention provides a technical solution: a milling and turning compound eccentric tool holder 5, including a machine tool bed 1, a spindle box 2, a spindle 3, a spindle shaft 4, a tool holder 5, and a cutting tool 6. The spindle box 2 is provided inside the machine tool bed 1. The spindle shaft 4 is provided at the center of the spindle box 2. The spindle 3 is sleeved on the outer circular surface of the spindle shaft 4. The tool holder 5 is fixedly connected to the bottom of the spindle 3. The center of the tool holder 5 is positioned at the spindle shaft 4. The cutting tool 6 is eccentrically connected to the outer side of the bottom center of the tool holder 5.

[0020] The tool holder 5 is a flange with a radial groove 10. The tool 6 is installed and fixed in the radial groove 10, and the eccentric position of the tool 6 in the radial groove 10 can be adjusted.

[0021] The flange end face of the tool holder 5 fits tightly and seamlessly with the connecting end face of the spindle 3, ensuring that the rotation axis of the tool holder 5 is consistent with the axis of the spindle shaft 4, resulting in accurate positioning and higher machining precision.

[0022] The cutting tool 6 is fixed by screws 9 and is detachably connected to the tool holder 5. The radial groove 10 of the tool holder 5 flange has multiple equidistant, precision-surfaced conical holes 8 that mate with the conical surfaces of the cutting tool 6. This facilitates quick installation and replacement of the cutting tool 6, making it more convenient to use.

[0023] The tool holder 5 has a clearance 12 at its center for mounting the milling cutter holder 7. The spindle axis 4 can be used independently with milling cutters without interfering with the tool holder 5. The end face of the tool 6 is kept horizontal with the X-axis. When using the milling and turning compound eccentric tool holder 5, the fixed position of the tool 6 can avoid the rotation range of the tool changer of the milling cutter holder 7. The length of the tool 6 is longer than the length of the milling cutter, based on the principle of avoiding the length of the milling cutter.

[0024] The spindle 3 is designed as an inverted T-shape, with its axis coinciding with the axis of the spindle shaft 4. The outer surfaces of the spindle 3 fit together tightly to fix the spindle in place. This design strengthens the connection between the tool holder 5 and the spindle 3, resulting in better strength of the tool holder 5, reducing the likelihood of skewing and vibration during machining, and making the tool holder 5 more stable.

[0025] The cutting tool 6 is fixed to the spindle 3 by countersunk screws 11 on the flange. This design eliminates the gap between the spindle 3 and the spindle axis 4, making it more scientific and reasonable.

[0026] The machining process is as follows: During use, the flange end face of the tool holder 5 is tightly fitted with the connecting end face of the spindle 3 without gaps. The tool holder 5 is fixedly connected to the spindle 3, and the tool 6 is installed and fixed in the radial groove 10. The eccentric position of the tool 6 in the radial groove 10 can be adjusted, which not only enhances the connection between the tool holder 5 and the spindle and enhances the rigidity of the tool 6, but also eliminates the errors that are easy to occur in the tool 6 during the process, making the surface of the produced workpiece smoother. The milling and turning compound eccentric tool holder 5 has a clearance for the milling cutter holder 7, and the milling cutter holder can be used simultaneously without interference. The overall design is simple in structure and highly functional. This equipment greatly improves the quality of the produced products and has strong promotional value.

[0027] The above description is only a preferred embodiment of this patent and does not limit the scope of this patent. Any equivalent structural or procedural transformations made using the description and drawings, whether directly or indirectly applied to other related technical fields, shall fall within the scope of protection of this patent.

Claims

1. A milling-turning composite eccentric tool holder, characterized in that: The machine tool includes a machine bed (1) and a spindle box (2). The spindle box (2) is located inside the machine bed (1). A spindle core (4) is located at the center of the spindle box (2). A spindle (3) is fitted on the outer circular surface of the spindle core (4). A tool holder (5) is fixedly connected to the bottom of the spindle (3). The center of the tool holder (5) is located at the spindle core (4). A cutting tool (6) is eccentrically connected to the outer side of the bottom center of the tool holder (5). The tool holder (5) is a flange and has a radial groove (10). The tool (6) is installed and fixed in the radial groove (10) to adjust the eccentric position of the tool (6) in the radial groove (10). The radial groove (10) of the flange of the tool holder (5) is provided with multiple conical holes (8) of equidistant precision surfaces that fit with the conical surface of the tool (6). The center part of the tool holder (5) is provided with a clearance position (12) for clamping the milling cutter holder (7), and the spindle axis (4) can use the milling machine tool alone without interfering with the tool holder (5); The end face of the cutting tool (6) is kept horizontal with the X-axis. When using a milling and turning compound eccentric tool holder (5), the fixed position of the cutting tool (6) can avoid the rotation range of the tool changer of the milling cutter holder (7). The main spindle (3) is designed as an inverted T-shape. The axis of the main spindle (3) coincides with the axis of the spindle shaft (4). The outer circular surface is tightly fitted and fixed. The flange end face of the tool holder (5) is tightly fitted and seamlessly connected to the end face of the main spindle (3).

2. The milling-turning composite eccentric tool holder according to claim 1, characterized in that: The cutting tool (6) is fixed by screws (9) and the handle (5) is detachably connected.

3. The milling-turning composite eccentric tool holder according to claim 1, characterized in that: The cutting tool (6) is fixed to the spindle (3) by countersunk screws (11) on the flange.

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