Motorized spindle with compact structure

Abstract

The utility model discloses a compact structure motorized spindle which comprises a motor, a mounting disc and an assembling disc, the assembling disc is fixed on one side of the motor and used for being connected with a machine tool, the mounting disc is arranged on one side, opposite to the assembling disc, of the motor in a sleeved mode and used for being connected with a cutter head, and a connector base is arranged on the top of the motor. A power line connector and a temperature control line connector are arranged on the two sides of the connector base respectively, an encoder is arranged above the mounting disc and fixed to the motor, a liquid inlet pipe and a liquid outlet pipe are arranged on the side wall of the motor, and an encoder reading head, the liquid inlet pipe and the liquid outlet pipe face the same direction as the temperature control line connector; according to the compact-structure electric spindle, the structure is compact, the encoder read head, the liquid inlet pipe, the liquid discharge pipe and the temperature control wire connector face one side of the motor, the power wire connector faces the other side of the motor, circuits of the motor are all arranged from the two sides of the motor, the design is reasonable, and wiring and wiring are convenient; and the assembling disc can be in butt joint with a machine tool quickly, the mounting disc is in butt joint with the cutterhead quickly, and assembling is quick and convenient.

Description

Technical Field

[0001] The utility model relates to a compact electric spindle technology, in particular to a compact electric spindle. Background Art

[0002] The electric spindle is a new technology that has emerged in the field of CNC machine tools, integrating the machine tool spindle and the spindle motor. The main transmission system of high-speed CNC machine tools has eliminated the pulley drive and gear drive, and the machine tool spindle is directly driven by a built-in electric motor, thereby shortening the length of the machine tool main transmission chain to zero and realizing the "zero transmission" of the machine tool. This transmission structure form of the spindle motor and the machine tool spindle "combined into one" makes the spindle component relatively independent from the machine tool's transmission system and overall structure, so it can be made into a "spindle unit", commonly known as a compact electric spindle.

[0003] The existing electric spindles have the following problems: 1. When installing the machine tool, it is generally installed on the spindle box first, and then installed on the machine tool casting base. There are many installation steps, and the existing electric spindles are generally sleeve-type bodies, which are bulky and complex in structure and are not easy to assemble on the machine tool; 2. There are a large number of interfaces on the electric spindle, but the positions and directions of the connectors are different, which not only makes wiring difficult, but also affects the disassembly and assembly of the electric spindle. Utility Model Content

[0004] In order to solve the defects of the above-mentioned prior art, the utility model provides a compact electric spindle with compact structure, convenient assembly, reasonable interface setting position and orientation design, and convenient wiring and wiring.

[0005] To achieve the above technical objectives, the utility model adopts the following technical solutions: a compact electric spindle, comprising a motor, a mounting plate and an assembly plate, wherein the assembly plate is fixed to one side of the motor, the assembly plate is used to connect to a machine tool, the mounting plate is sleeved on the side of the motor opposite to the assembly plate, the mounting plate is used to connect to a tool disc, a joint base is provided on the top of the motor, a power line joint and a temperature control line joint are respectively provided on both sides of the joint base, an encoder is provided above the mounting plate, the encoder is fixed to the motor, a liquid inlet pipe and a liquid discharge pipe are provided on the side wall of the motor, and the encoder reader, the liquid inlet pipe and the liquid discharge pipe are in the same direction as the temperature control line joint.

[0006] Preferably, the motor is provided with a through shaft hole, and a main shaft is provided in the shaft hole.

[0007] Preferably, a keyway is provided in the shaft hole, and a spline matching the keyway is provided on the main shaft.

[0008] Preferably, a shaft seal is provided between the mounting plate and the motor.

[0009] Preferably, at least three assembly bolt holes are evenly arranged on the outer circumference of the motor, and assembly bolts are fitted in the assembly bolt holes.

[0010] Preferably, the mounting plate is evenly provided with mounting bolt holes, a limiting plate is provided on the outer side of the mounting plate, and the limiting plate is evenly provided with limiting bolt holes.

[0011] Preferably, avoidance grooves are provided on both sides of the assembly bolt hole, and the assembly bolt hole and the avoidance grooves are both located outside the limiting plate.

[0012] Preferably, the motor is a disc motor.

[0013] Preferably, a cooling chamber is provided in the motor housing, a temperature sensor connected to a temperature control line connector is provided in the cooling chamber, one end of the cooling chamber is connected to a liquid inlet pipe, and the other end of the cooling chamber is connected to a liquid discharge pipe.

[0014] In summary, the utility model has achieved the following technical effects:

[0015] 1. The compact electric spindle of the utility model adopts an encoder reader, a liquid inlet pipe, a liquid discharge pipe and a temperature control line connector facing one side of the motor, and a power line connector facing the other side of the motor, so that the motor lines are arranged from both sides of the motor, the design is reasonable, and the wiring is convenient.

[0016] 2. The compact electric spindle of the utility model adopts a disc motor, an assembly disc and a mounting disc, has a compact structure, can be quickly connected to a machine tool through the assembly disc, and can be quickly connected to a cutter disc through the mounting disc, and the assembly is fast and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the compact electric spindle of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure of the compact electric spindle of the utility model;

[0019] Figure 3 It is a schematic diagram of the structure of the compact electric spindle of the utility model;

[0020] Explanation of the reference numerals in the drawings in the specification: 1. Motor; 2. Mounting plate; 3. Connector base; 4. Encoder; 5. Mounting bolt hole; 6. Avoidance groove; 7. Liquid inlet pipe; 8. Liquid discharge pipe; 9. Shaft hole; 10. Limiting plate; 11. Limiting bolt hole; 12. Assembly bolt hole; 13. Assembly plate. DETAILED DESCRIPTION

[0021] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0022] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0025] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0027] Embodiment 1:

[0028] like Figure 1 As shown in Figure 3, a compact electric spindle comprises a motor 1, a mounting plate 2 and an assembly plate 13. The assembly plate 13 is fixed to one side of the motor 1 and is used to connect to a machine tool. The mounting plate 2 is sleeved on the side of the motor 1 opposite to the assembly plate 13 and is used to connect to a cutter head. A joint base 3 is provided on the top of the motor 1, and power line joints and temperature control line joints are provided on both sides of the joint base 3. An encoder 4 is provided above the mounting plate 2 and is fixed to the motor 1. A liquid inlet pipe 7 and a liquid discharge pipe 8 are provided on the side wall of the motor 1. The encoder 4 reader, the liquid inlet pipe 7 and the liquid discharge pipe 8 are in the same direction as the temperature control line joint. The motor 1 is a disc-type motor 1. A through shaft hole 9 is provided on the motor 1, and a spindle is provided in the shaft hole 9. A keyway is provided in the shaft hole 9, and a spline matching the keyway is provided on the spindle. A shaft seal is provided between the mounting plate 2 and the motor 1.

[0029] The compact electric spindle of the present embodiment adopts an encoder 4 reader, a liquid inlet pipe 7 and a liquid discharge pipe 8, and a temperature control line connector facing one side of the motor 1, and a power line connector facing the other side of the motor 1, so that the lines of the motor 1 are arranged from both sides of the motor 1, the design is reasonable, and the wiring is convenient. In addition, the disc motor 1, the assembly disc 13 and the installation disc 2 are adopted, and the structure is compact. The assembly disc 13 can be quickly connected to the machine tool, and the installation disc 2 can be quickly connected to the tool disc, and the assembly is quick and convenient.

[0030] In order to improve the connection firmness with the machine tool and improve the precision of the compact electric spindle, four assembly bolt holes 12 are evenly arranged on the outer circumference of the motor 1, and assembly bolts are fitted in the assembly bolt holes 12.

[0031] In order to improve the connection firmness between the mounting plate 2 and the blade, 6 mounting bolt holes 5 are evenly arranged on the mounting plate 2. In order to facilitate the mounting plate 2 to install blade discs of different sizes, a limit plate 10 is provided on the outer side of the mounting plate 2, and 8 limit bolt holes 11 are evenly arranged on the limit plate 10.

[0032] In order to prevent the limiting plate 10 from blocking the assembly bolt hole 12 , avoidance grooves 6 are provided on both sides of the assembly bolt hole 12 , and the assembly bolt hole 12 and the avoidance grooves 6 are both located outside the limiting plate 10 .

[0033] A cooling chamber is provided in the housing of the motor 1 , and a temperature sensor connected to a temperature control line connector is provided in the cooling chamber. One end of the cooling chamber is connected to a liquid inlet pipe 7 , and the other end of the cooling chamber is connected to a liquid discharge pipe 8 .

[0034] The above description is only a preferred implementation mode of the present invention, and does not limit the present invention in any form. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are within the scope of the technical solution of the present invention.

Claims

1. A compact electric spindle, characterized in that: It includes a motor, a mounting plate and an assembly plate, wherein the assembly plate is fixed to one side of the motor, the assembly plate is used to connect to a machine tool, the mounting plate is sleeved on one side of the motor opposite to the assembly plate, the mounting plate is used to connect to a cutter disc, a joint base is provided on the top of the motor, a power line joint and a temperature control line joint are respectively provided on both sides of the joint base, an encoder is provided above the mounting plate, the encoder is fixed to the motor, a liquid inlet pipe and a liquid discharge pipe are provided on the side wall of the motor, and the encoder reader, the liquid inlet pipe and the liquid discharge pipe are in the same direction as the temperature control line joint.

2. A compact electric spindle according to claim 1, characterized in that: The motor is provided with a through shaft hole, and a main shaft is arranged in the shaft hole.

3. A compact electric spindle according to claim 2, characterized in that: A keyway is arranged in the shaft hole, and a spline matching the keyway is arranged on the main shaft.

4. A compact electric spindle according to claim 1, characterized in that: A shaft seal is arranged between the mounting plate and the motor.

5. The compact electric spindle according to claim 1, characterized in that: At least three assembly bolt holes are evenly arranged on the outer circumference of the motor, and assembly bolts are fitted in the assembly bolt holes.

6. A compact electric spindle according to claim 5, characterized in that: The installation plate is evenly provided with installation bolt holes, a limiting plate is arranged at the outer side of the installation plate, and the limiting plate is evenly provided with limiting bolt holes.

7. A compact electric spindle according to claim 6, characterized in that: Avoidance grooves are arranged on both sides of the assembly bolt hole, and the assembly bolt hole and the avoidance grooves are both located outside the limiting plate.

8. The compact electric spindle according to claim 1, characterized in that: The motor is a disc type motor.

9. The compact electric spindle according to claim 1, characterized in that: A cooling chamber is provided in the motor housing, a temperature sensor connected to a temperature control line connector is provided in the cooling chamber, one end of the cooling chamber is communicated with a liquid inlet pipe, and the other end of the cooling chamber is communicated with a liquid discharge pipe.

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