Permanent magnet synchronous double-end grinding electric spindle

Abstract

The utility model discloses a permanent magnet synchronous double-end grinding electric spindle which comprises a connecting plate, a permanent magnet cooling mechanism and a fixing mechanism. The lower end of the connecting plate is fixedly connected with a first connecting table; the permanent magnet cooling mechanism comprises a grinding shell, a permanent magnet motor stator, a permanent magnet motor rotor and a main shaft, the grinding shell is fixedly connected to the lower end of the first connecting table, and a permanent magnet motor stator mounting groove and a permanent magnet motor rotor mounting groove are formed in the grinding shell; a permanent magnet motor stator is fixedly connected into the permanent magnet motor stator mounting groove, a permanent magnet motor rotor is fixedly connected into the permanent magnet motor rotor mounting groove, and a main shaft is rotationally connected into the grinding shell. The fixing mechanisms are respectively arranged at the front and rear ends of the main shaft; according to the permanent magnet synchronous double-end grinding electric spindle, mounting and combination are facilitated through auxiliary clamping, the device can be used more stably and lastingly through circulating water flow heat exchange, and the device is easy to operate and operate.

Description

Technical Field

[0001] The utility model relates to the technical field of electric spindles, in particular to a permanent magnet synchronous double-head grinding electric spindle. Background Art

[0002] The electric spindle, a new technology that has emerged in the field of CNC machine tools in recent years, integrates the machine tool spindle and spindle motor into one. The main drive system of high-speed CNC machine tools eliminates pulley and gear transmissions. The electric spindle is directly driven by an internal motor, thus shortening the length of the machine tool's main drive chain to zero and achieving "zero drive" for the machine tool spindle. This "integrated" transmission structure of the spindle motor and spindle makes the spindle component relatively independent from the machine tool's drive system and overall structure, allowing it to be formed into an "electric spindle unit," commonly known as an "electric spindle." During operation, the interaction between the stator and rotor magnetic fields of a double-head grinding electric spindle generates torque, enabling the device to rotate and perform grinding. However, some permanent magnet synchronous double-head grinding electric spindles overheat during use, requiring cooling. Others are inconvenient to connect to external components. Therefore, we propose a permanent magnet synchronous double-head grinding electric spindle. Utility Model Content

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a permanent magnet synchronous double-head grinding electric spindle. The device is easy to install and assemble through auxiliary clamping, and the circulating water flow heat exchange makes the device more stable and durable in use, which can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a permanent magnet synchronous double-head grinding electric spindle, comprising a connecting plate, a permanent magnet cooling mechanism and a fixing mechanism;

[0005] Connecting plate: the lower end of which is fixedly connected to the first connecting platform;

[0006] Permanent magnet cooling mechanism: It includes a grinding shell, a permanent magnet motor stator, a permanent magnet motor rotor and a main shaft. The grinding shell is fixedly connected to the lower end of the first connecting platform. The interior of the grinding shell is respectively provided with a permanent magnet motor stator mounting slot and a permanent magnet motor rotor mounting slot. The interior of the permanent magnet motor stator mounting slot is fixedly connected to the permanent magnet motor stator, the interior of the permanent magnet motor rotor mounting slot is fixedly connected to the permanent magnet motor rotor, and the interior of the grinding shell is rotatably connected to the main shaft.

[0007] Fixing mechanism: It is respectively arranged at the front and rear ends of the main shaft;

[0008] Among them: it also includes a single-chip microcomputer, which is fixedly connected to the front end of the first connecting platform. The input end of the single-chip microcomputer is electrically connected to the external power supply, and the input ends of the permanent magnet motor stator and the permanent magnet motor rotor are both electrically connected to the output end of the single-chip microcomputer. The device is easy to install and assemble through auxiliary clamping, and the circulating water flow is used for heat exchange, so that the device can be used more stably and lastingly.

[0009] Furthermore, the permanent magnet cooling mechanism also includes a cooling chamber, which is opened at the inner wall of the grinding shell to facilitate cyclic cooling of the device.

[0010] Furthermore, the permanent magnet cooling mechanism also includes threaded connecting pipes, which are fixedly connected to the right end of the first connecting platform. The threaded connecting pipes are all connected to the cooling chamber to facilitate the input of external cooling water or cooling liquid.

[0011] Furthermore, the fixing mechanism includes a connecting column and a second connecting platform, and the connecting column is evenly fixedly connected to the front and rear ends of the main shaft, and the front and rear ends of the main shaft are fixedly connected with the second connecting platform, so that the device can limit the movement of external components and facilitate fixed connection.

[0012] Furthermore, the fixing mechanism also includes threaded connection ports, which are evenly opened at one end of the second connecting platform away from the main shaft, so that the device can be fixedly installed with the external component.

[0013] Furthermore, the fixing mechanism also includes a clamping plate, a sliding column, a spring and a sliding groove, and the sliding grooves are symmetrically opened inside the second connecting platform. The sliding columns are slidably connected inside the sliding grooves, and the relative inner sides of the laterally adjacent sliding columns are fixedly connected with the clamping plates. The interior of the second connecting platform is fixedly connected with evenly distributed springs, and the ends of the springs away from the second connecting platform are fixedly connected to the ends of the vertically adjacent clamping plates toward the sliding columns. The springs are movably sleeved inside the sliding grooves to provide an auxiliary clamping effect, thereby facilitating the connection of the device with external components.

[0014] Furthermore, it also includes mounting holes, which are evenly opened at the upper end of the connecting plate to facilitate the installation and fixation of the device.

[0015] Compared with the prior art, the beneficial effects of the present invention are: the permanent magnet synchronous double-head grinding electric spindle has the following advantages:

[0016] 1. During the actual use of the permanent magnet synchronous double-head grinding electric spindle, the external grinding assembly is inserted into the second connecting platform to connect the connecting column to the external grinding assembly. Subsequently, the external connecting bolt is connected to the screw hole of the external grinding assembly through the threaded connection port to achieve stable fixation of the device. During the fixation process, the rebound force of the spring enables the clamping plate to provide auxiliary clamping for external grinding assemblies of different sizes, making it easier for the staff to install and fix them.

[0017] 2. When grinding work is required, the staff connects the external water supply pipe to the threaded connecting pipe, and then transports water or cooling liquid from the external water supply pipe to the threaded connecting pipe, and then transports it to the cooling chamber through the threaded connecting pipe. Then the staff controls the permanent magnet motor stator and permanent magnet motor rotor through the single-chip microcomputer, and the permanent magnet motor stator generates a stator rotating magnetic field, and the permanent magnet motor rotor generates a rotor rotating magnetic field. The two magnetic fields interact to generate torque, which enables the device to rotate and realize grinding work. The cooling chamber is used for stable circulation heat exchange and cooling, so that the device can operate more stably and sustainably. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic cross-sectional view of the permanent magnet cooling mechanism of the present invention;

[0020] Figure 3 This is an enlarged structural diagram of point A of the present invention.

[0021] In the figure: 1 connecting plate, 2 permanent magnet cooling mechanism, 21 grinding housing, 22 threaded connecting pipe, 23 cooling chamber, 24 permanent magnet motor stator, 25 permanent magnet motor rotor, 26 main shaft, 3 fixing mechanism, 31 connecting column, 32 clamping plate, 33 threaded connection port, 34 second connecting platform, 35 sliding column, 36 spring, 37 slide groove, 4 single chip computer, 5 first connecting platform, 6 mounting hole. 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-3 , this embodiment provides a technical solution: a permanent magnet synchronous double-head grinding electric spindle, comprising a connecting plate 1, a permanent magnet cooling mechanism 2 and a fixing mechanism 3;

[0024] Connecting plate 1: The lower end of the connecting plate is fixedly connected to the first connecting platform 5, and further includes mounting holes 6, which are evenly arranged at the upper end of the connecting plate 1;

[0025] Permanent magnet cooling mechanism 2: It includes a grinding shell 21, a permanent magnet motor stator 24, a permanent magnet motor rotor 25 and a main shaft 26. The grinding shell 21 is fixedly connected to the lower end of the first connecting platform 5. The interior of the grinding shell 21 is respectively provided with a permanent magnet motor stator mounting groove and a permanent magnet motor rotor mounting groove. The interior of the permanent magnet motor stator mounting groove is fixedly connected with the permanent magnet motor stator 24, the interior of the permanent magnet motor rotor mounting groove is fixedly connected with the permanent magnet motor rotor 25, and the interior of the grinding shell 21 is rotatably connected with the main shaft 26. The permanent magnet cooling mechanism 2 also includes a cooling chamber 23. The cooling chamber 23 is opened at the inner wall of the grinding shell 21. The permanent magnet cooling mechanism 2 also includes a threaded connecting pipe 22. The threaded connecting pipe 22 is respectively fixedly connected At the right end of the first connecting platform 5, the threaded connecting pipes 22 are connected to the cooling chamber 23. The staff connects the external water supply pipe to the threaded connecting pipe 22, and then transports water or cooling liquid from the external water supply pipe to the threaded connecting pipe 22, and then transports it to the cooling chamber 23 through the threaded connecting pipe 22. Then, the staff controls the single-chip microcomputer 4 to start the permanent magnet motor stator 24 and the permanent magnet motor rotor 25. The permanent magnet motor stator 24 generates a stator rotating magnetic field, and the permanent magnet motor rotor 25 generates a rotor rotating magnetic field. The two magnetic fields interact to generate torque, thereby enabling the device to rotate and realize grinding work. Stable circulation heat exchange and cooling are carried out through the cooling chamber 23, so that the device can operate more stably and sustainably.

[0026] The fixing mechanism 3 is respectively arranged at the front and rear ends of the main shaft 26. The fixing mechanism 3 includes a connecting column 31 and a second connecting platform 34. The connecting column 31 is respectively and evenly fixedly connected to the front and rear ends of the main shaft 26. The front and rear ends of the main shaft 26 are fixedly connected to the second connecting platform 34. The fixing mechanism 3 also includes a threaded connection port 33. The threaded connection port 33 is respectively and evenly opened at the end of the second connecting platform 34 away from the main shaft 26. The fixing mechanism 3 also includes a clamping plate 32, a sliding column 35, a spring 36 and a sliding groove 37. The sliding grooves 37 are respectively and symmetrically opened inside the second connecting platform 34. The sliding columns 35 are slidably connected inside the sliding grooves 37. The relative inner sides of the laterally adjacent sliding columns 35 are fixedly connected. The clamping plate 32 and the second connecting platform 34 are fixedly connected with uniformly distributed springs 36. The ends of the springs 36 away from the second connecting platform 34 are fixedly connected to the ends of the vertically adjacent clamping plate 32 facing the sliding column 35. The springs 36 are movably sleeved inside the sliding groove 37. The external grinding assembly is inserted into the second connecting platform 34 to connect the connecting column 31 with the external grinding assembly. Subsequently, the external connecting bolts are connected to the screw holes of the external grinding assembly through the threaded connection port 33 to achieve stable fixation of the device. During the fixing process, the rebound force of the springs 36 enables the clamping plate 32 to provide auxiliary clamping for external grinding assemblies of different sizes, making it easier for the staff to install and fix them.

[0027] Among them: it also includes a single-chip microcomputer 4, which is fixedly connected to the front end of the first connecting platform 5, the input end of the single-chip microcomputer 4 is electrically connected to the external power supply, and the input ends of the permanent magnet motor stator 24 and the permanent magnet motor rotor 25 are both electrically connected to the output end of the single-chip microcomputer 4.

[0028] The working principle of the permanent magnet synchronous double-head grinding electric spindle provided by the present invention is as follows: the connecting plate 1 is moved to the installation position of the permanent magnet synchronous double-head grinding electric spindle, and the external bolts are threadedly connected to the screw holes of the installation position of the permanent magnet synchronous double-head grinding electric spindle through the installation holes 6 to achieve stable fixation of the connecting plate 1 and the upper frame, and the external grinding component is inserted into the second connecting platform 34 to connect the connecting column 31 to the external grinding component, and then the external connecting bolts are connected to the screw holes of the external grinding component through the threaded connection port 33 to achieve stable fixation of the device. In the fixing process, the rebound force of the spring 36 enables the clamping plate 32 to provide auxiliary clamping for external grinding components of different sizes. It is convenient for the staff to install and fix. When the fixation is completed and it needs to be used, the staff connects the external water supply pipe with the threaded connecting pipe 22, and then transports water or cooling liquid from the external water supply pipe to the threaded connecting pipe 22, and then transports it to the cooling chamber 23 through the threaded connecting pipe 22. Then the staff controls through the single-chip microcomputer 4 to start the permanent magnet motor stator 24 and the permanent magnet motor rotor 25. The permanent magnet motor stator 24 generates a stator rotating magnetic field, and the permanent magnet motor rotor 25 generates a rotor rotating magnetic field, so that the two magnetic fields interact to generate torque, thereby enabling the device to rotate and realize grinding work, and stable circulation heat exchange and cooling are carried out through the cooling chamber 23, so that the device can be used more stably and lastingly.

[0029] It is worth noting that the single chip microcomputer 4 disclosed in the above embodiments controls the operation of the permanent magnet motor stator 24 and the permanent magnet motor rotor 25 using methods commonly used in the prior art.

[0030] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. Permanent magnet synchronous double-head grinding electric spindle, characterized by: It comprises a connecting plate (1), a permanent magnet cooling mechanism (2) and a fixing mechanism (3); Connecting plate (1): the lower end of which is fixedly connected to the first connecting platform (5); A permanent magnet cooling mechanism (2): comprising a grinding housing (21), a permanent magnet motor stator (24), a permanent magnet motor rotor (25) and a main shaft (26); the grinding housing (21) is fixedly connected to the lower end of the first connecting platform (5); a permanent magnet motor stator mounting groove and a permanent magnet motor rotor mounting groove are respectively provided inside the grinding housing (21); the permanent magnet motor stator (24) is fixedly connected inside the permanent magnet motor stator mounting groove; the permanent magnet motor rotor (25) is fixedly connected inside the permanent magnet motor rotor mounting groove; and the main shaft (26) is rotatably connected inside the grinding housing (21); Fixing mechanism (3): It is respectively arranged at the front and rear ends of the main shaft (26); The single-chip microcomputer (4) is fixedly connected to the front end of the first connecting platform (5), the input end of the single-chip microcomputer (4) is electrically connected to an external power supply, and the input ends of the permanent magnet motor stator (24) and the permanent magnet motor rotor (25) are both electrically connected to the output end of the single-chip microcomputer (4).

2. The permanent magnet synchronous double-head grinding electric spindle according to claim 1 is characterized in that: The permanent magnet cooling mechanism (2) further comprises a cooling chamber (23), and the cooling chamber (23) is opened on the inner wall of the grinding shell (21).

3. The permanent magnet synchronous double-head grinding electric spindle according to claim 2, characterized in that: The permanent magnet cooling mechanism (2) further comprises a threaded connecting pipe (22), wherein the threaded connecting pipe (22) is fixedly connected to the right end of the first connecting platform (5), and the threaded connecting pipe (22) is communicated with the cooling chamber (23).

4. The permanent magnet synchronous double-head grinding electric spindle according to claim 1, characterized in that: The fixing mechanism (3) comprises a connecting column (31) and a second connecting platform (34), wherein the connecting column (31) is evenly fixedly connected to the front and rear ends of the main shaft (26), and the front and rear ends of the main shaft (26) are both fixedly connected to the second connecting platform (34).

5. The permanent magnet synchronous double-head grinding electric spindle according to claim 4 is characterized in that: The fixing mechanism (3) further comprises a threaded connection port (33), and the threaded connection port (33) is evenly arranged at an end of the second connection platform (34) away from the main shaft (26).

6. The permanent magnet synchronous double-head grinding electric spindle according to claim 5, characterized in that: The fixing mechanism (3) further comprises a clamping plate (32), a slide column (35), a spring (36) and a slide groove (37), wherein the slide grooves (37) are symmetrically opened inside the second connecting platform (34), the slide columns (35) are slidably connected inside the slide grooves (37), the opposite inner side surfaces of the laterally adjacent slide columns (35) are fixedly connected with the clamping plate (32), the interior of the second connecting platform (34) is fixedly connected with uniformly distributed springs (36), one end of the spring (36) away from the second connecting platform (34) is fixedly connected to one end of the vertically adjacent clamping plate (32) toward the slide column (35), and the springs (36) are movably sleeved inside the slide grooves (37).

7. The permanent magnet synchronous double-head grinding electric spindle according to claim 1, characterized in that: It also includes mounting holes (6), which are evenly arranged at the upper end of the connecting plate (1).

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