CN115194188B

CN115194188B - Electromechanical device for manufacturing machine tool spindle and capable of carrying out dynamic balance test

Info

Publication number: CN115194188B
Application number: CN202211133554.XA
Authority: CN
Inventors: 刘冰; 尹超; 白东海; 孙少男
Original assignee: Shandong Magnet Transmission Co ltd
Current assignee: Shandong Magnet Transmission Co ltd
Priority date: 2022-09-19
Filing date: 2022-09-19
Publication date: 2022-12-20
Anticipated expiration: 2042-09-19
Also published as: CN115194188A

Abstract

The invention relates to the technical field of processing, in particular to an electromechanical device for manufacturing a machine tool spindle, which can perform dynamic balance test and comprises: vibration sensor, three-jaw chuck, knife rest, the main shaft body still includes: the spindle body is detachably arranged on the three-jaw chuck, and an automatic rotating component is arranged between the base and the three-jaw chuck; the transmission disc is positioned above the main shaft body; the lifter is located transmission dish top, and the lifter passes through pivot rotatable coupling with the transmission dish, and vibration sensor fixed mounting is equipped with elastic connection lifting unit at the upper surface of lifter, lifter one side. According to the invention, the base, the transmission disc, the lifting rod, the supporting frame, the switching block, the motor frame, the processing motor, the rotating disc, the rotating shaft and the U-shaped frame are arranged, so that the automatic testing device has the functions of automatic testing, real-time testing, stable testing, automatic processing, automatic tool changing, automatic scraping and accurate testing.

Description

Electromechanical device for manufacturing machine tool spindle and capable of carrying out dynamic balance test

Technical Field

The invention relates to the technical field of machining, in particular to electromechanical equipment for manufacturing a machine tool spindle, which can perform dynamic balance test.

Background

Machining refers to a process of changing the physical dimensions or properties of a workpiece by a mechanical device. The difference in the machining method can be divided into cutting machining and pressing machining.

A machine tool (english name: machine tool) refers to a machine that manufactures a machine. A lathe is a machine tool for turning a rotating workpiece mainly with a lathe tool. The lathe can also be used for corresponding processing by using a drill bit, a reamer, a screw tap, a die, a knurling tool and the like. Lathes are used primarily for machining shafts, discs, sleeves and other workpieces having a surface of revolution, and are the most widely used type of machine tool in machine manufacturing and repair plants.

The machine tool spindle refers to a shaft which drives a workpiece or a cutter to rotate on the machine tool. The main shaft component is generally composed of a main shaft, a bearing, a transmission member (gear or pulley), and the like. The machine is mainly used for supporting transmission parts such as gears and belt wheels and transmitting motion and torque, such as a machine tool main shaft; some are used to clamp a workpiece, such as a mandrel. Most machine tools today have spindle units. The motion precision and the structural rigidity of the spindle component are important factors for determining the processing quality and the cutting efficiency. Since the machine tool spindle is usually of a cylindrical structure, the machine tool spindle is usually machined and manufactured by using a lathe.

In the prior art, when a lathe processes a machine tool spindle, a dynamic balance test cannot be performed on the machine tool spindle, if the machine tool spindle is required to be judged to be qualified by testing the dynamic balance of the machine tool spindle, the machine tool spindle is transferred to a device for testing the dynamic balance only after the machine tool spindle is processed by the lathe, the dynamic balance of the machine tool spindle is tested, the processing and testing mode is inconvenient, because the dynamic balance of the machine tool spindle cannot be tested in the process of processing the machine tool spindle, the processing and testing mode can cause low production efficiency, and the mode can easily cause the situation that the machine tool spindle is unqualified due to large processing errors, and because the situation that the machine tool spindle has large errors in processing cannot be found in time, the economic loss is easily caused, therefore, an electromechanical device for manufacturing the machine tool spindle capable of performing the dynamic balance test is provided, and is used for solving the problems.

Disclosure of Invention

The invention aims to solve the problems that in the prior art, when a lathe processes a machine tool spindle, a dynamic balance test cannot be carried out on the machine tool spindle, if the machine tool spindle is required to be judged to be qualified by testing the dynamic balance of the machine tool spindle, the machine tool spindle is transferred to a device for testing the dynamic balance to test the dynamic balance of the machine tool spindle only after the machine tool spindle is processed by the lathe, the processing and testing mode is inconvenient, because the dynamic balance cannot be tested in the process of processing the machine tool spindle, the processing and testing mode can cause lower production efficiency, and the mode can easily cause the situation that the machine tool spindle is unqualified due to larger processing errors, and because the situation that the machine tool spindle has larger errors in processing cannot be found in time, economic loss is easily caused, and the electromechanical device for manufacturing the machine tool spindle capable of carrying out the dynamic balance test is provided.

In order to achieve the purpose, the invention adopts the following technical scheme:

the electromechanical device for manufacturing the machine tool spindle capable of carrying out dynamic balance test comprises: vibration sensor, three-jaw chuck, knife rest, the main shaft body still includes:

the spindle body is detachably arranged on the three-jaw chuck, and an automatic rotating component is arranged between the base and the three-jaw chuck;

a transfer disc located above the main shaft body;

the lifting rod is positioned above the transmission disc, the lifting rod is rotatably connected with the transmission disc through a rotating shaft, the vibration sensor is fixedly arranged on the upper surface of the lifting rod, and one side of the lifting rod is provided with an elastic connection lifting assembly;

the bidirectional displacement driving assembly is arranged between the supporting frame and the base;

the automatic tool changing and scraping device comprises a switching block, wherein the switching block is located above a supporting frame, an automatic reciprocating switching assembly is arranged between the switching block and the supporting frame, an automatic tool changing and connecting assembly is arranged between the switching block and a tool rest, and a cleaning and scraping assembly is arranged on one side of the switching block.

Preferably, the automatic rotating component includes the motor frame, motor frame fixed mounting is at the lower surface of base, motor frame one side fixed mounting has the processing motor, the processing motor needs to pass through wire external power supply and switch, three-jaw chuck's below fixed mounting has rolling disc, axis of rotation in proper order, axis of rotation one end runs through the base and is connected rather than rotating, the axis of rotation passes through the belt with the axle head of processing motor and band pulley transmission is connected.

Preferably, elastic connection lifting unit includes U type frame, the lifter slidable is in the inboard of U type frame, the inboard fixed mounting of U type frame has the guide bar, the guide bar runs through the lifter and rather than sliding connection, fixed mounting has the spring between one side in the upper surface of lifter and the U type frame, the outer one side fixed mounting of U type frame has an A drive block, fixed surface installs the A support frame on the base, the slidable connection of A drive block is on one side of A support frame, be equipped with the electronic screw rod mechanism of A between A support frame and the A drive block, the electronic screw rod mechanism of A is used for driving the A drive block and is automatic lift vertical motion on the A support frame.

Preferably, the lower surface of the transmission disc is fixedly provided with a sliding prevention frame, and the sliding prevention frame can be in contact with the upper end surface of the spindle body.

Preferably, two-way displacement drive assembly includes L type frame, L type frame fixed mounting is at the lower surface of carriage, the inboard fixed mounting of L type frame has the strengthening rib, the outer one side fixed mounting of L type frame has the B drive block, but B drive block one side sliding connection has the B support frame, be equipped with the electronic screw rod mechanism of B between B support frame and the B drive block, the electronic screw rod mechanism of B is used for driving the B drive block and is automatic lift vertical motion on the B support frame, fixed surface mounting has the C drive block under the B support frame, but C drive block sliding connection is at the upper surface of base, be equipped with the electronic screw rod mechanism of C between C drive block and the base, the electronic screw rod mechanism of C is used for driving the C drive block and is automatic translation motion at the upper surface of base.

Preferably, the automatic reciprocating switch subassembly includes the connecting axle, the connecting axle runs through and switches the piece and rather than fixed connection, connecting axle one end is passed one side of carriage and is connected rather than rotating, rotatable the installing on the interior one side of carriage of connecting axle one end, but carriage slidable mounting has the carriage through the guide rail in the carriage inboard, carriage one side fixed mounting has the rack, connecting axle outside fixed mounting has the gear, the gear is connected through the meshing transmission with the rack, the interior one side fixed mounting of carriage has the pneumatic cylinder, the pneumatic cylinder passes through the external solenoid valve of oil pipe, the axle head fixed mounting of pneumatic cylinder is on one side of carriage.

Preferably, automatic tool changing coupling assembling includes the connecting plate, connecting plate fixed mounting is on one side of switching over the piece, rotatable the installing of connecting plate is run through its trades the arbor, tool changing arbor one end fixed mounting is on one side of knife rest, connecting plate one side fixed mounting has servo motor, servo motor need be through external drive controller of wire and power, be connected through bevel gear transmission between servo motor's the axle head and the tool changing arbor.

Preferably, the subassembly is scraped in clearance includes the mounting bracket, mounting bracket fixed mounting is on one side of switching the piece, mounting bracket one side is provided with the mounting groove, the inboard demountable installation of mounting groove has flexible scraper blade, flexible scraper blade can contact with the main shaft external side, flexible scraper blade is the slope setting.

Preferably, the upper surface of the base is fixedly provided with a water retaining frame.

The electromechanical equipment for manufacturing the machine tool spindle, which can carry out dynamic balance test, has the advantages that:

(1) The vibration sensor, the three-jaw chuck, the main shaft body, the base, the transmission disc, the lifting rod, the motor frame, the processing motor, the rotating disc, the rotating shaft, the U-shaped frame, the guide rod, the spring, the A driving block, the A supporting frame, the anti-sliding frame and the A electric lead screw mechanism are arranged, so that the automatic test, the real-time test and the stable test functions are realized, the dynamic balance test can be carried out on the main shaft body in the processing process of the main shaft body, the production efficiency can be improved, the economic loss can be greatly reduced, and the condition that the processing error is larger can be found in time in the processing process of the main shaft body, so that the unqualified condition of the main shaft body can be prevented to the greatest extent;

(2) By arranging the tool rest, the supporting frame, the switching block, the L-shaped frame, the B driving block, the B supporting frame, the C driving block, the connecting plate, the cutter changing shaft, the servo motor, the B electric screw rod mechanism and the C electric screw rod mechanism, the automatic turning machine has automatic machining and automatic cutter changing functions, can automatically switch and use the cutter on the tool rest, and further has higher machining efficiency;

(3) Through setting up carriage, switching piece, connecting axle, carriage, rack, gear, pneumatic cylinder, mounting bracket, flexible scraper blade, the electronic lead screw mechanism of B, the electronic lead screw mechanism of C, make it have automatic switch-over, strike off, accurate test function voluntarily, can strike off sweeps and coolant liquid on the main shaft body to can improve the dynamic balance precision of testing the main shaft body.

Drawings

FIG. 1 is a schematic front perspective view of an electromechanical device for manufacturing a spindle of a machine tool capable of performing a dynamic balance test according to the present invention;

FIG. 2 is a schematic diagram of a back perspective structure of an electromechanical device for manufacturing a machine tool spindle, which is capable of performing a dynamic balance test according to the present invention;

FIG. 3 is a front cut-away schematic perspective view of an electromechanical device for manufacturing a machine tool spindle capable of performing a dynamic balance test according to the present invention;

FIG. 4 is a schematic bottom perspective view of an electromechanical device for manufacturing a spindle of a machine tool capable of performing a dynamic balance test according to the present invention;

FIG. 5 is a schematic view of a portion of the enlarged structure of the area A in FIG. 4;

FIG. 6 is a schematic top-sectional perspective view of an electromechanical device for manufacturing a spindle of a machine tool capable of performing a dynamic balance test according to the present invention;

fig. 7 is a schematic top-sectional perspective view of an electromechanical device for manufacturing a machine tool spindle, which is capable of performing a dynamic balance test according to the present invention.

In the figure: 1. a vibration sensor; 2. a three-jaw chuck; 3. a tool holder; 4. a main shaft body; 5. a base; 6. a transfer plate; 7. a lifting rod; 8. a support frame; 9. a switching block; 10. a motor frame; 11. processing a motor; 12. rotating the disc; 13. a rotating shaft; 14. a U-shaped frame; 15. a guide rod; 16. a spring; 17. a driving block; 18. a, supporting a frame; 19. a skid prevention frame; 20. an L-shaped frame; 21. b driving block; 22. b, supporting frames; 23. c driving block; 24. a connecting shaft; 25. a carriage; 26. a rack; 27. a gear; 28. a hydraulic cylinder; 29. a connecting plate; 30. changing a cutter shaft; 31. a servo motor; 32. a mounting frame; 33. a flexible scraper; 34. a water retaining frame.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1 to 7, an electromechanical device for manufacturing a spindle of a machine tool, which can perform a dynamic balance test, includes: vibration sensor 1, three-jaw chuck 2, knife rest 3, main shaft body 4 still include:

base 5, three-jaw chuck 2 is located base 5 top, the main shaft body 4 can be dismantled on three-jaw chuck 2, be equipped with the automatic rotating component between base 5 and the three-jaw chuck 2, the automatic rotating component includes motor frame 10, motor frame 10 fixed mounting is at the lower surface of base 5, motor frame 10 one side fixed mounting has processing motor 11, processing motor 11 needs to pass through wire external power supply and switch, three-jaw chuck 2's below fixed mounting has rolling disc 12 in proper order, axis of

rotation

13, 13 one end of axis of rotation runs through base 5 and is connected rather than rotating, axis of rotation 13 passes through the belt with processing motor 11's axle head and is connected with band pulley transmission.

The transmission disc 6 is positioned above the spindle body 4, the lower surface of the transmission disc 6 is fixedly provided with an anti-sliding frame 19, and the anti-sliding frame 19 can be contacted with the upper end surface of the spindle body 4.

The vibration sensor comprises a lifting rod 7, the lifting rod 7 is positioned above a transmission disc 6, the lifting rod 7 is rotatably connected with the transmission disc 6 through a rotating shaft, a vibration sensor 1 is fixedly arranged on the upper surface of the lifting rod 7, one side of the lifting rod 7 is provided with an elastic connection lifting assembly, the elastic connection lifting assembly comprises a U-shaped frame 14, the lifting rod 7 can slide on the inner side of the U-shaped frame 14, the inner side of the U-shaped frame 14 is fixedly provided with a guide rod 15, the guide rod 15 penetrates through the lifting rod 7 and is in sliding connection with the lifting rod 7, a spring 16 is fixedly arranged between the upper surface of the lifting rod 7 and the inner side of the U-shaped frame 14, an A driving block 17 is fixedly arranged on the outer side of the U-shaped frame 14, an A supporting frame 18 is fixedly arranged on the upper surface of a base 5, the A driving block 17 can be connected on one side of the A supporting frame 18 in a sliding manner, an A electric screw rod mechanism is arranged between the A supporting frame 18 and the A driving block 17 and used for driving the A driving block 17 to do automatic lifting vertical movement on the A supporting frame 18, the automatic test, real-time test and stable test functions are realized, the dynamic balance test can be carried out on the main shaft body 4 in the processing process of the main shaft body 4, the production efficiency can be improved, the economic loss can be greatly reduced, the condition of larger processing error can be timely found in the processing process of the main shaft body 4, so that the unqualified condition of the main shaft body 4 can be prevented to the greatest extent, when the main shaft body 4 needs to be processed, the main shaft body 4 can be clamped and fixed on the three-jaw chuck 2, then the main shaft body 4 can control the processing motor 11 to rotate when being processed, the processing motor 11 can drive the three-jaw chuck 2, the main shaft body 4, the rotating disc 12 and the rotating shaft 13 to rotate together through a belt and a belt wheel, at the moment, the main shaft body 4 can be processed, and in the processing process, the A driving block 17 can automatically descend through the A electric screw rod mechanism, the A driving block 17 can drive the anti-sliding frame 19 and the transmission disc 6 to descend together when descending, when the anti-sliding frame 19 contacts the spindle body 4, the anti-sliding frame 19 and the transmission disc 6 can rotate together with the spindle body 4, at the moment, the vibration sensor 1 can detect the vibration amplitude, if the vibration amplitude is large, the lower the dynamic balance precision of the spindle body 4 is, so that automatic testing and real-time testing can be realized, when the vibration amplitude is large to a certain value, the equipment can be controlled to stop, then the spindle body 4 is checked and rescued or re-clamped, the larger machining error condition or the loose clamping condition can be timely found in the machining process of the spindle body 4, and the tension of the spring 16 can enable the anti-sliding frame 19 to be tightly attached to the spindle body 4, so that the vibration between the anti-sliding frame 19 and the spindle body 4 can be prevented, so that the vibration sensor 1 cannot be affected, the dynamic balance detection precision can be improved, and stable testing can be realized.

A supporting frame 8, a bidirectional displacement driving component is arranged between the supporting frame 8 and the base 5, the bidirectional displacement driving component comprises an L-shaped frame 20, the L-shaped frame 20 is fixedly arranged on the lower surface of the supporting frame 8, reinforcing ribs are fixedly arranged on the inner side of the L-shaped frame 20, a B driving block 21 is fixedly arranged on the outer side of the L-shaped frame 20, a B supporting frame 22 is slidably connected to one side of the B driving block 21, a B electric screw mechanism is arranged between the B supporting frame 22 and the B driving block 21, the B electric screw mechanism is used for driving the B driving block 21 to do automatic lifting vertical motion on the B supporting frame 22, a C driving block 23 is fixedly arranged on the lower surface of the B supporting frame 22, the C driving block 23 is slidably connected to the upper surface of the base 5, a C electric screw mechanism is arranged between the C driving block 23 and the base 5, and the C electric screw mechanism is used for driving the C driving block 23 to do automatic translation motion on the upper surface of the base 5, when the main shaft body 4 rotates, the B electric screw rod mechanism and the C electric screw rod mechanism can be matched with each other to enable the tool rest 3 to automatically move, the tool rest 3 can move in two directions, the B electric screw rod mechanism can enable the B driving block 21 to automatically move up and down on the B supporting frame 22, the C electric screw rod mechanism can enable the C driving block 23 to automatically move in a translation mode on the base 5, the tool rest 3 can drive a tool mounted on the tool rest 3 to move when moving, the tool can be close to or far away from the main shaft body 4 when moving, and then the tool on the tool rest 3 can be used for turning the main shaft body 4, when another tool on the tool rest 3 needs to be used, can control knife rest 3 earlier and keep away from the main shaft body 4, then control servo motor 31 and rotate certain angle, can make knife rest 3 and tool changing axle 30 rotate certain angle, and then can switch the cutter that needs use to the position of using, and then can accomplish the automatic switch-over cutter, need not to shut down and carry out the tool changing through the manual work, and then can improve machining efficiency.

And the B electric screw rod mechanism and the C electric screw rod mechanism are driven by adopting a stepping motor or a servo motor with higher precision.

Switch 9, switch 9 and be located carriage 8 top, it is equipped with the automatic switching subassembly that reciprocates to switch between 9 and the carriage 8, the automatic switching subassembly that reciprocates includes connecting axle 24, connecting axle 24 runs through and switches 9 and rather than fixed connection, one side that carriage 8 was passed to connecting axle 24 one end and rather than rotate and be connected, connecting axle 24 one end is rotatable to be installed on one side in carriage 8, but carriage 25 is inboard to have sliding rack through the guide rail slidable mounting, carriage 25 one side fixed mounting has rack 26, connecting axle 24 outside fixed mounting has gear 27, gear 27 is connected through the meshing transmission with rack 26, one side fixed mounting has pneumatic cylinder 28 in carriage 8, pneumatic cylinder 28 passes through the external solenoid valve of oil pipe, the axle head fixed mounting of pneumatic cylinder 28 is on one side of carriage 25.

Switch and be equipped with automatic tool changing coupling assembling between block 9 and the knife rest 3, automatic tool changing coupling assembling includes connecting plate 29, connecting plate 29 fixed mounting is on one side of switching block 9, rotatable mounting has the tool changing axle 30 that runs through it on the connecting

plate

29, 30 one end fixed mounting of tool changing axle is on one side of

knife rest

3, 29 one side fixed mounting of connecting plate has servo motor 31, servo motor 31 need be through the external drive control ware of wire and power, be connected through the bevel gear transmission between servo motor 31's axle head and the tool changing axle 30.

One side of the switching block 9 is provided with a cleaning scraping component; the cleaning scraping assembly comprises a mounting frame 32, the mounting frame 32 is fixedly mounted on one side of the switching block 9, a mounting groove is formed in one side of the mounting frame 32, a flexible scraping plate 33 is detachably mounted on the inner side of the mounting groove, the flexible scraping plate 33 can be in contact with the outer side of the spindle body 4, the flexible scraping plate 33 is obliquely arranged, so that the automatic switching, automatic scraping and accurate testing functions can be realized, scraps and cooling liquid on the spindle body 4 can be automatically scraped, the dynamic balance accuracy of the tested spindle body 4 can be improved, when the scraps and the cooling liquid on the spindle body 4 need to be scraped, the hydraulic cylinder 28 can be controlled to extend out or retract, when the hydraulic cylinder 28 extends out or retracts, the sliding frame 25 and the rack 26 can be driven to automatically move in the supporting frame 8, when the rack 26 moves, the gear 27, the switching block 9 and the connecting shaft 24 can automatically rotate by one hundred eighty degrees, the position of the tool rest 3 and the flexible scraping plate 33 can be automatically exchanged, the automatic switching can be realized, when the flexible scraping plate 33 is switched to be close to the spindle body 4, the electric screw rod mechanism B and the electric screw rod mechanism and the C can be matched, the automatic scraping and accurate testing accuracy of the scraps on the spindle body 4 can be not influenced, and the accurate testing accuracy of the spindle body can be realized;

the upper surface of the base 5 is fixedly provided with a water retaining frame 34 which can prevent the coolant from flowing out.

The transmission disc 6, the rotating disc 12, the rotating shaft 13, the three-jaw chuck 2 and the spindle body 4 are all arranged on the same axle wire.

It should be noted that:

proposed in the present application: the vibration sensor 1, the three-jaw chuck 2, the processing motor 11, the servo motor 31, the electric screw rod mechanism A, the electric screw rod mechanism B and the electric screw rod mechanism C are all in the prior art, and the working principle and the using method thereof are not described in detail herein.

The vibration sensor is one of the key parts in the testing technology, and the function of the vibration sensor is mainly to receive mechanical quantity and convert the mechanical quantity into electric quantity proportional to the mechanical quantity. Since it is also an electromechanical conversion device. Therefore, the vibration sensor is sometimes called a transducer, a vibration pickup, etc., and the original mechanical quantity to be measured is not directly converted into an electrical quantity, but is used as an input quantity of the vibration sensor, and then is received by the mechanical receiving part to form another mechanical quantity suitable for conversion, and finally is converted into the electrical quantity by the electromechanical converting part. The operation performance of a sensor is determined by the operation performance of the mechanical receiving section and the electromechanical transducing section.

The electric screw mechanism A, the electric screw mechanism B and the electric screw mechanism C are all electric screws, namely, an English name Linear Actuator, also called as an electric push rod, a push rod motor, an electric cylinder and a Linear Actuator. The electric screw rod is an electric driving device which converts the rotary motion of a motor into the linear reciprocating motion of a push rod. The device can be used as an execution machine in various simple or complex process flows to realize remote control, centralized control or automatic control.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. An electromechanical device for manufacturing a machine tool spindle, capable of performing dynamic balance testing, comprising: vibration sensor (1), three-jaw chuck (2), knife rest (3), main shaft body (4), its characterized in that still includes:

the spindle comprises a base (5), wherein the three-jaw chuck (2) is positioned above the base (5), the spindle body (4) is detachably connected to the three-jaw chuck (2), and an automatic rotating component is arranged between the base (5) and the three-jaw chuck (2);

a transfer disc (6), the transfer disc (6) being located above the spindle body (4);

the automatic lifting device comprises a lifting rod (7), the lifting rod (7) is located above a transmission disc (6), the lifting rod (7) is rotatably connected with the transmission disc (6) through a rotating shaft, a vibration sensor (1) is fixedly installed on the upper surface of the lifting rod (7), an elastic connection lifting assembly is arranged on one side of the lifting rod (7), the elastic connection lifting assembly comprises a U-shaped frame (14), the lifting rod (7) is slidably arranged on the inner side of the U-shaped frame (14), a guide rod (15) is fixedly installed on the inner side of the U-shaped frame (14), the guide rod (15) penetrates through the lifting rod (7) and is slidably connected with the lifting rod (7), a spring (16) is fixedly installed between the upper surface of the lifting rod (7) and one side in the U-shaped frame (14), an A driving block (17) is fixedly installed on the outer side of the U-shaped frame (14), an A supporting frame (18) is fixedly installed on the upper surface of a base (5), the A driving block (17) is slidably connected to one side of the A supporting frame (18), and an electric screw rod driving mechanism (17) is arranged on the A driving block and used for automatic lifting mechanism;

the supporting frame (8), there is a two-way displacement drive assembly between base (5) and the said supporting frame (8);

switch block (9), switch block (9) and be located carriage (8) top, be equipped with automatic reciprocating switching subassembly between switch block (9) and carriage (8), be equipped with automatic tool changing coupling assembling between switch block (9) and knife rest (3), automatic tool changing coupling assembling includes connecting plate (29), connecting plate (29) fixed mounting is on the opposite side of switching block (9), rotatable tool changing axle (30) that run through it is installed on connecting plate (29), tool changing axle (30) one end fixed mounting is on one side of knife rest (3), connecting plate (29) one side fixed mounting has servo motor (31), servo motor (31) need be through the external drive controller of wire and power, be connected through the bevel gear transmission between the axle head of servo motor (31) and tool changing axle (30), switch block (9) one side is equipped with the clearance and strikes off the subassembly.

2. The electromechanical device for manufacturing the machine tool spindle capable of performing the dynamic balance test according to claim 1, wherein the automatic rotating member comprises a motor frame (10), the motor frame (10) is fixedly installed on the lower surface of the base (5), a processing motor (11) is fixedly installed on one side of the motor frame (10), the processing motor (11) needs to be connected with an external power supply and a switch through a wire, a rotating disc (12) and a rotating shaft (13) are sequentially and fixedly installed below the three-jaw chuck (2), one end of the rotating shaft (13) penetrates through the base (5) and is rotatably connected with the base, and the rotating shaft (13) is in transmission connection with the shaft end of the processing motor (11) through a belt and a belt wheel.

3. The electromechanical device for manufacturing the spindle of the machine tool capable of performing the dynamic balance test according to claim 1, wherein a sliding prevention frame (19) is fixedly mounted on the lower surface of the transmission disc (6), and the sliding prevention frame (19) can be in contact with the upper end surface of the spindle body (4).

4. The electromechanical device for manufacturing the machine tool spindle capable of performing the dynamic balance test according to claim 1, wherein the bidirectional displacement driving assembly comprises an L-shaped frame (20), the L-shaped frame (20) is fixedly installed on the lower surface of the supporting frame (8), a reinforcing rib is fixedly installed on the inner side of the L-shaped frame (20), a B driving block (21) is fixedly installed on one outer side of the L-shaped frame (20), a B supporting frame (22) is slidably connected to one side of the B driving block (21), a B electric screw mechanism is arranged between the B supporting frame (22) and the B driving block (21), the B electric screw mechanism is used for driving the B driving block (21) to perform automatic lifting vertical motion on the B supporting frame (22), a C driving block (23) is fixedly installed on the lower surface of the B supporting frame (22), the C driving block (23) is slidably connected to the upper surface of the base (5), a C electric screw mechanism is arranged between the C driving block (23) and the base (5), and the C electric screw mechanism is used for driving the C driving block (23) to perform automatic translation motion on the upper surface of the base (5).

5. The electromechanical device for manufacturing the main shaft of the machine tool capable of performing the dynamic balance test is characterized in that the automatic reciprocating switching assembly comprises a connecting shaft (24), the connecting shaft (24) penetrates through the switching block (9) and is fixedly connected with the switching block, one end of the connecting shaft (24) penetrates through one side of the supporting frame (8) and is rotatably connected with the supporting frame, one end of the connecting shaft (24) is rotatably installed on one inner side of the supporting frame (8), a sliding frame (25) is slidably installed on the inner side of the supporting frame (8) through a guide rail, a rack (26) is fixedly installed on one side of the sliding frame (25), a gear (27) is fixedly installed on the outer side of the connecting shaft (24), the gear (27) is connected with the rack (26) through meshing transmission, a hydraulic cylinder (28) is fixedly installed on one inner side of the supporting frame (8), the hydraulic cylinder (28) is externally connected with an electromagnetic valve through an oil pipe, and the shaft end of the hydraulic cylinder (28) is fixedly installed on one side of the sliding frame (25).

6. The electromechanical device for manufacturing the machine tool spindle capable of performing the dynamic balance test according to claim 1, wherein the cleaning scraping component comprises a mounting frame (32), the mounting frame (32) is fixedly mounted on one side of the switching block (9), a mounting groove is formed in one side of the mounting frame (32), a flexible scraper (33) is detachably mounted on the inner side of the mounting groove, the flexible scraper (33) can be in contact with the outer side of the spindle body (4), and the flexible scraper (33) is obliquely arranged.

7. The electromechanical device for manufacturing the spindle of the machine tool capable of performing the dynamic balance test according to claim 1, wherein a water blocking frame (34) is fixedly installed on the upper surface of the base (5).