A milling and turning composite electric spindle

Abstract

This utility model discloses a milling-turning hybrid electric spindle, comprising a spindle body, a spindle broach, a four-lobed jaw, a milling cutter flange, a turning tool flange, and a spacer. The spindle body is composed of an outer shell and a rotating shaft coaxially connected by a heavy-duty bearing. The rotating shaft is hollow and houses the spindle broach. A four-lobed jaw is mounted on the front end of the spindle broach. A milling cutter flange surrounding the four-lobed jaw is mounted on the front end of the rotating shaft. A turning tool flange surrounding the milling cutter flange is mounted on the front end of the outer shell. A spacer is provided between the turning tool flange and the milling cutter flange. Through the above method, this utility model provides a milling-turning hybrid electric spindle. By constructing a stress transfer structure with the turning tool flange and the milling cutter flange, it achieves the dual-function of milling and turning. Simultaneously, the addition of an aluminum metal casting layer structure solves the problem of moisture corrosion affecting the motor, significantly enhancing functional characteristics and greatly extending service life.

Description

Technical Field

[0001] This utility model relates to the field of electric spindles, and in particular to a turning-milling composite electric spindle. Background Technology

[0002] Traditional milling-turning machining center spindles employ a simple, independent stacked structure for their turning and milling mechanisms. This stacked structure exacerbates metal fatigue in the spindle as a whole, significantly shortening its overall lifespan. Its performance and lifespan are inferior to dedicated lathe or milling machine spindles. Furthermore, traditional milling-turning spindles suffer from maintenance difficulties; damage to the turning components affects the milling components. Due to their high cost and maintenance challenges, they are unsuitable for production needs. Utility Model Content

[0003] The main technical problem solved by this utility model is to provide a milling and turning hybrid electric spindle. By constructing a stress transfer structure through the turning tool flange and the milling cutter flange, the spindle can achieve the combined function of turning and milling. At the same time, the addition of an aluminum metal casting layer structure solves the problem of moisture corrosion on the motor, which not only significantly enhances the functional characteristics, but also greatly extends the service life.

[0004] To solve the above-mentioned technical problems, the present invention provides a milling and turning composite electric spindle, comprising a spindle body, a spindle broach, a four-lobed jaw, a milling cutter flange, a turning tool flange, and a spacer. The spindle body is composed of an outer shell and a rotating shaft coaxially connected by a heavy-duty bearing. The rotating shaft is hollow and contains a spindle broach. A four-lobed jaw is installed at the front end of the spindle broach. A milling cutter flange surrounding the four-lobed jaw is installed at the front end of the rotating shaft. A turning tool flange surrounding the milling cutter flange is installed at the front end of the outer shell. A spacer is provided between the turning tool flange and the milling cutter flange.

[0005] In a preferred embodiment of this utility model, the tool flange is used to install the tool chuck, the tool chuck is used to engage the tool holder, the tool holder is used to install the tool head, the four-lobed claw is used to connect the tool head, the four-lobed claw is used to tighten the tool head, the four-lobed claw is also used to lock the tool holder and the tool chuck together, and the four-lobed claw is also used to stress-connect the tool flange and the spacer ring.

[0006] In a preferred embodiment of this utility model, the contact position between the spacer ring and the cutting tool flange is provided with mutually engaging conical surfaces, which are used to transmit heavy load stress from the cutting tool.

[0007] In a preferred embodiment of this utility model, a countersunk hole is coaxially formed on the milling cutter flange, and a coaxial positioning cavity is formed at the countersunk hole. The spindle broach is connected to the countersunk hole, and the four-lobed claw is placed in the coaxial positioning cavity. The coaxial positioning cavity is used to position the milling cutter.

[0008] In a preferred embodiment of the present invention, a motor stator is provided on the inner wall of the outer casing, and a motor rotor is provided on the shaft at the corresponding motor stator.

[0009] In a preferred embodiment of this utility model, a groove is provided on the inner wall of the outer shell, the motor stator is placed in the groove, aluminum metal is cast in the groove, the motor stator is embedded in the aluminum metal, and the aluminum metal is used for motor rust prevention and motor heat conduction.

[0010] The beneficial effects of this utility model are as follows: The milling and turning composite electric spindle provided by this utility model realizes the combined function of milling and turning of the spindle by constructing a stress transfer structure through the turning tool flange and the milling cutter flange. At the same time, the addition of an aluminum metal casting layer structure solves the problem of water vapor corrosion on the motor, which not only significantly enhances the functional characteristics, but also greatly extends the service life. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0012] Figure 1 This is a structural diagram of a preferred embodiment of a milling and turning composite electric spindle of this utility model. Detailed Implementation

[0013] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0014] like Figure 1 As shown, the embodiments of this utility model include:

[0015] A milling and turning hybrid electric spindle includes a spindle body 1, a spindle broach 2, a four-lobed jaw 4, a milling cutter flange 5, a turning tool flange 6, and a spacer 7. The spindle body 1 is composed of an outer shell 8 and a rotating shaft 9 coaxially connected by a heavy-duty bearing 10. The rotating shaft 9 is hollow and houses the spindle broach 2. The front end of the spindle broach 2 is equipped with a four-lobed jaw 4. The front end of the rotating shaft 9 is equipped with a milling cutter flange 5 surrounding the four-lobed jaw 4. The front end of the outer shell 8 is equipped with a turning tool flange 6 surrounding the milling cutter flange 5. A spacer 7 is provided between the turning tool flange 6 and the milling cutter flange 5.

[0016] The tool flange 6 is used to install the tool chuck, the tool chuck is used to engage the tool holder, the tool holder is used to install the tool head, the four-lobed claw 4 is used to connect the tool head, the four-lobed claw 4 is used to tighten the tool head, the four-lobed claw 4 is also used to lock the tool holder and the tool chuck together, and the four-lobed claw 4 is also used to stress-connect the tool flange 6 and the spacer ring 7.

[0017] Furthermore, the contact positions of the spacer ring 7 and the cutting tool flange 6 are provided with mutually engaging conical surfaces 11, which are used to transmit heavy load stress from the cutting tool.

[0018] Furthermore, a countersunk hole 12 is coaxially formed on the milling cutter flange 5, and a coaxial positioning cavity 13 is formed at the countersunk hole 12. The spindle broach 2 is connected to the countersunk hole 12, and the four-lobed claw 4 is placed in the coaxial positioning cavity 13. The coaxial positioning cavity 13 is used to position the milling cutter.

[0019] Furthermore, a motor stator 14 is provided on the inner wall of the outer casing 8, and a motor rotor 15 is provided on the rotating shaft 9 at the corresponding location of the motor stator 14.

[0020] Furthermore, the inner wall of the outer casing 8 is provided with a recessed groove 16, the motor stator 14 is placed in the recessed groove 16, the recessed groove 16 is filled with aluminum metal, the motor stator 14 is embedded in the aluminum metal, and the aluminum metal is used for motor rust prevention and motor heat conduction.

[0021] This product is a high-speed, high-stability machining center electric spindle. In addition to its excellent machining stability, the spindle broach 2 further adopts HSK broaches and, with the cooperation of the milling cutter flange 5 and the turning tool flange 6, simultaneously realizes the functions of a turning tool and a milling cutter.

[0022] The turning and milling functions can be switched as needed, allowing for quick and easy switching between turning tools and milling cutters, making it a dual-purpose machine.

[0023] When used for turning, a tool chuck, tool post, and four-lobed jaws 4 need to be installed on the tool flange 6 to secure the tool. Once the tool is secured, the spindle does not rotate, ensuring stable clamping of the tool head. Turning stress is transferred from the tool flange 6 to the housing 8 and spacer 7. The spacer 7 further transfers the stress to the cutter flange 5, which in turn transfers the stress to the spindle 9. In this way, the housing 8 and spindle 9 simultaneously absorb stress, effectively absorbing the heavy load stress on the tool.

[0024] The milling cutter operates by connecting to the four-lobed jaw 4, similar to a traditional spindle. This product further addresses the waterproofing issue crucial during milling by casting aluminum metal into the motor stator 14. Since water vapor is cold and the stator is hot, this prevents condensation at the stator 14, thus avoiding corrosion of the entire motor assembly. The cast aluminum metal also acts as a heat conductor, further enhancing heat dissipation.

[0025] In summary, this utility model provides a milling-turning hybrid electric spindle. By constructing a stress transmission structure through the turning tool flange 6 and the milling cutter flange 5, the spindle achieves a combined milling-turning function. At the same time, the addition of an aluminum metal casting layer structure solves the problem of moisture corrosion affecting the motor, which not only significantly enhances the functional characteristics but also greatly extends the service life.

[0026] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A hybrid electrospindle for turning and milling, characterized by, The device includes a spindle body, a spindle broach, a four-lobed jaw, a milling cutter flange, a turning tool flange, and a spacer. The spindle body is composed of an outer shell and a rotating shaft coaxially connected by a heavy-duty bearing. The rotating shaft is hollow and contains the spindle broach. The front end of the spindle broach is equipped with a four-lobed jaw. The front end of the rotating shaft is equipped with a milling cutter flange surrounding the four-lobed jaw. The front end of the outer shell is equipped with a turning tool flange surrounding the milling cutter flange. A spacer is provided between the turning tool flange and the milling cutter flange.

2. The hybrid electrospindle according to claim 1, characterized in that, The tool flange is used to install the tool chuck, the tool chuck is used to engage the tool holder, the tool holder is used to install the tool head, the four-lobed jaws are used to connect the tool head, the four-lobed jaws are used to tighten the tool head, the four-lobed jaws are also used to lock the tool holder and the tool chuck together, and the four-lobed jaws are also used to stress-connect the tool flange and the spacer ring.

3. The hybrid electrospindle according to claim 1, characterized in that, The contact points between the spacer ring and the cutting tool flange are provided with interlocking conical surfaces, which are used to transmit heavy stress from the cutting tool.

4. The hybrid electrospindle according to claim 1, characterized in that, The milling cutter flange is coaxially provided with a countersunk hole, and a coaxial positioning cavity is formed at the countersunk hole. The spindle broach is connected to the countersunk hole, and the four-lobed jaws are placed in the coaxial positioning cavity. The coaxial positioning cavity is used to position the milling cutter.

5. The hybrid electrospindle according to claim 1, characterized in that, The inner wall of the outer casing is provided with a motor stator, and the rotating shaft is provided with a motor rotor at the corresponding motor stator.

6. The hybrid electrospindle according to claim 5, characterized in that, The inner wall of the outer casing is provided with a groove, the motor stator is placed in the groove, the groove is filled with aluminum metal, and the motor stator is embedded in the aluminum metal. The aluminum metal is used for motor rust prevention and motor heat conduction.

Images