CN117066569A - An automobile motor journal keyway grooving device and grooving method - Google Patents

Abstract

The invention relates to the technical field of grooving devices, specifically an automobile motor journal keyway grooving device, which includes a base. Two sets of side plates are fixedly installed on the base. Both sets of side plates are fixedly provided with fixed clamping blocks, and A storage board is fixedly installed between the two sets of side panels, and a sliding plate is slidably provided on the storage board; the fixed component includes a two-way drive structure and a clamping structure set in linkage. There are two sets of clamping structures, and each group of clamping structures is provided. On the side plate and in cooperation with the fixed clamping block, the bidirectional drive structure can drive the clamping structure to move toward or away from the fixed clamping block to fix or release the motor shaft to be processed; the slotting mechanism is set on the storage board and includes The reciprocating component and the lifting component are connected to the sliding plate. When the reciprocating component drives the sliding plate to reciprocate along the axial direction of the motor shaft, the lifting component can drive the rotating structure slidably mounted on the rotating shaft toward the motor shaft. sports.

Description

Grooving device and grooving method for automobile motor journal key groove

Technical Field

The invention relates to the technical field of slotting devices, in particular to an automobile motor journal key slot slotting device and an automobile motor journal key slot slotting method.

Background

The motor is a very common power source in life, and is a device for converting electric energy into mechanical energy, in the existing life, the motor shaft of the motor needs to be externally connected with other machines, then the motor shaft is connected with other machines, so that key slots are formed in the motor shaft body, the conventional processing device is used for directly forming the key slots in the motor shaft at one time by using the milling cutter when the key slots are formed in the motor shaft, at the moment, the friction between the milling cutter and the motor shaft is large, so that the temperature between the milling cutter and the motor shaft is too high, the service life of the milling cutter is shortened, the processed motor shaft is possibly damaged, and loss is caused.

Disclosure of Invention

The invention aims to provide a slotting device and a slotting method for a shaft neck key slot of an automobile motor, which are used for solving the problems in the background technology.

In order to achieve the above purpose, the present invention provides the following technical solutions:

the grooving device comprises a base, wherein two groups of side plates are fixedly arranged on the base, fixed clamping blocks are fixedly arranged on the two groups of side plates, a storage plate is fixedly arranged between the two groups of side plates, a sliding plate is arranged on the storage plate in a sliding manner, and a rotating shaft is rotatably arranged on the sliding plate;

the fixing assembly comprises a bidirectional driving structure and a clamping structure which are arranged in a linkage way, wherein the clamping structure is provided with two groups, each group of clamping structure is arranged on the side plate and matched with the fixing clamping block, and the bidirectional driving structure can drive the clamping structure to move towards or away from the fixing clamping block so as to fix or release a motor shaft body to be processed, which is placed on the fixing clamping block;

the grooving mechanism is arranged on the storage plate and comprises a reciprocating motion assembly and a lifting assembly, wherein the reciprocating motion assembly is connected with the sliding plate, the reciprocating motion assembly drives the sliding plate to reciprocate along the axial direction of the motor shaft body, and the lifting assembly is triggered and can drive a rotating structure which is slidably mounted on the rotating shaft to move towards the motor shaft body.

As a further scheme of the invention: the bidirectional driving structure comprises two groups of fixed plates fixedly arranged on the side plates, bidirectional air cylinders are arranged on the fixed plates, two groups of telescopic end parts of the bidirectional air cylinders are fixedly provided with moving plates which are in sliding connection with the side plates, and one sides of the moving plates, far away from the bidirectional air cylinders, are provided with inclined grooves.

As still further aspects of the invention: the clamping structure comprises a movable clamping block arranged on the side plate in a sliding manner, a connecting rod is fixedly arranged on one side of the movable clamping block, which faces the bidirectional cylinder, one end of the connecting rod, which is far away from the movable clamping block, is rotatably provided with a pulley, and the pulley is arranged in the chute in a sliding manner.

As still further aspects of the invention: the reciprocating motion assembly comprises an adjusting structure and an adapting structure, the adjusting structure comprises a first screw rod which is rotatably arranged in a first storage groove formed in the storage plate, a first threaded sleeve which is in threaded connection with the first screw rod is arranged on the first screw rod, and a movable belt wheel is rotatably arranged on one side of the first threaded sleeve, which faces to the base.

As still further aspects of the invention: the adaptation structure is including fixed the setting put the dead lever of thing inslot of No. two setups on the thing board, slide on the dead lever and be provided with the spring, the one end of spring with put thing board butt, the other end and slide the setting and be in slide sleeve butt on the dead lever, slide sleeve orientation one side rotation of base is installed driven pulley, driven pulley passes through the belt and removes the band pulley and rotate and install fixed pulley connection on the thing board, just fixed pulley and fixed mounting are in motor output shaft fixed connection on the thing board is put, the fixed post that is provided with on the belt, the post that is in with slide plate sliding connection.

As still further aspects of the invention: the lifting assembly comprises a second screw rod which is rotatably arranged on the rotating shaft, a second threaded sleeve which is in threaded connection with the second screw rod is arranged on the second screw rod, a ratchet wheel is fixedly arranged at one end of the second screw rod, which faces the sliding plate, and the ratchet wheel is matched with a ratchet plate fixedly arranged on the object placing plate.

As still further aspects of the invention: the rotary structure is installed including rotating the ring that cup joints on the screw sleeve No. two, cup joint the ring and be provided with two sets of connecting rods along its circumferencial direction equidistance, two sets of the connecting rod is kept away from cup joint the fixed installed part that is provided with of one end of ring, the installed part is kept away from cup joint the one end demountable installation of ring has the milling cutter.

As still further aspects of the invention: the invention also provides a grooving method for the automobile motor journal key groove, which comprises the following steps:

step one: in an initial state, the second threaded sleeve is attached to the ratchet wheel, the movable clamping block is far away from the fixed clamping block, a motor shaft body to be processed passes through one group of side plates and is placed on the two groups of fixed clamping blocks, then a bidirectional cylinder is started, the movable clamping block moves towards the fixed clamping block, and the motor shaft body to be processed is fixed between the movable clamping block and the fixed clamping block;

step two: and adjusting the first screw rod to drive the first threaded sleeve to move along the axial direction of the first screw rod so as to change the distance between the fixed belt pulley and the driven belt pulley and adapt to the provision of key grooves with different lengths.

Step three: the second motor is started, the rotating shaft can drive the milling cutter which is arranged on the rotating shaft in a sliding manner to rotate in the same direction, then the first motor is started, the belt continuously rotates in the same direction, and the sliding plate can be driven to reciprocate along the length direction of the object placing plate;

step four: the first motor and the second motor continuously work, a ratchet wheel moving towards the fixed belt wheel and the ratchet plate enter a meshing transmission state, the second screw rod can be driven to rotate, and the second threaded sleeve is driven to drive the milling cutter to move towards the motor shaft body;

step five: the belt drives the sliding plate to gradually separate from the fixed belt pulley, the ratchet wheel is not meshed with the ratchet plate at the moment, the position height of the milling cutter is unchanged, and the milling cutter moves along with the sliding plate at the same time so as to cut a key slot of a motor shaft;

step six: and repeating the fourth step and the fifth step, so that the cutting of the motor neck key groove can be completed.

Compared with the prior art, the invention has the beneficial effects that:

through setting up fixed subassembly, utilize the cooperation of two-way drive structure and clamping structure, can be with the fixed centre gripping of the motor shaft body that waits to process between two sets of curb plates to make the motor shaft body can not take place to rotate in the subsequent processing procedure, be favorable to the seting up of keyway;

through setting up slotting mechanism, utilize the cooperation between reciprocal subassembly and the lifting unit, can drive the sliding plate along the axial direction reciprocating motion who puts the thing board, thereby drive the axis of rotation along the axial direction reciprocating motion of motor shaft body, with make the milling cutter of installing in the axis of rotation carry out "Z" style of calligraphy cell body cutting to the motor shaft body, compare with traditional disposable cell body cutting, can reduce the milling cutter when carrying out the cell body cutting with the friction that produces between the motor shaft body, prevent milling cutter and motor shaft body because of the high temperature appears wearing and tearing, simultaneously through adjusting the regulation structure in the reciprocal subassembly, can change sliding plate reciprocating motion's stroke distance, and then change milling cutter's cutting length, the practicality of device has been improved, with the cell body cutting of suitable unnecessary length.

Drawings

Fig. 1 is a schematic diagram of an automotive motor journal keyway slotting device and an embodiment.

Fig. 2 is a schematic structural view of a connection between a sliding plate and a side plate in an embodiment of a grooving apparatus for a journal of an automotive motor.

FIG. 3 is a schematic diagram of a reciprocating assembly in one embodiment of an automotive motor journal keyway slotting device.

Fig. 4 is a schematic diagram of an adjusting structure of an embodiment of a grooving apparatus for a journal of an automotive motor.

Fig. 5 is a schematic diagram of an adaptation of an embodiment of a motor journal keyway slotting device.

Fig. 6 is a schematic structural view of a slotting mechanism in one embodiment of an automotive motor journal keyway slotting device.

Fig. 7 is a schematic diagram of a rotary structure of an embodiment of a device for grooving a journal of an automotive motor.

Fig. 8 is a schematic diagram of a structure of a fixing assembly connected to a motor shaft in an embodiment of a device for grooving a journal of an automobile motor.

Fig. 9 is a schematic structural view of a fixing assembly in one embodiment of an automotive motor journal keyway slotting device.

In the figure: 1. a base; 2. a storage plate; 3. a moving plate; 4. moving the clamping block; 5. a support rod; 6. a sliding sleeve; 7. a first threaded sleeve; 8. a chute; 9. a motor shaft body; 10. a milling cutter; 11. a mounting member; 12. a rotating shaft; 13. a side plate; 14. a second screw rod; 15. a sliding plate; 16. a belt; 17. a ratchet wheel; 18. a driven pulley; 19. a fixed belt wheel; 20. a spring; 21. a moving belt wheel; 22. a protruding column; 23. a first screw rod; 24. a fixed rod; 25. a sliding groove; 26. a motor II; 27. ratchet plate; 28. a connecting rod; 29. a second threaded sleeve; 30. a sleeve joint ring; 31. a slide block; 32. a guide groove; 33. a moving groove; 34. fixing the clamping blocks; 35. a clamping groove; 36. a fixing plate; 37. a clamping block; 38. a connecting rod; 39. a pulley; 40. a bidirectional cylinder; 41. a motor I.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In addition, an element in the present disclosure may be referred to as being "fixed" or "disposed" on another element or being directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Referring to fig. 1 to 9, in the embodiment of the invention, an automotive motor journal keyway slotting device comprises a base 1, wherein two groups of side plates 13 are fixedly installed on the base 1, fixed clamping blocks 34 are fixedly arranged on the two groups of side plates 13, a storage plate 2 is fixedly installed between the two groups of side plates 13, a sliding plate 15 is slidingly arranged on the storage plate 2, and a rotating shaft 12 is rotatably installed on the sliding plate 15;

specifically, referring to fig. 2 and 6, the sliding plate 15 is slidably connected with the supporting rods 5 fixedly disposed between the two sets of side plates 13, so that the sliding plate 15 slides along the length direction of the object placing plate 2, a sliding groove 25 is formed on one side of the sliding plate 15 facing the object placing plate 2, the rotating shaft 12 is fixedly connected with an output shaft of the No. two motor 26 fixedly mounted on the sliding plate 15, the No. two motor 26 is started, and the rotating shaft 12 continuously rotates in the same direction along with the output shaft of the No. two motor 26.

The fixing assembly comprises a two-way driving structure and clamping structures which are arranged in a linkage way, the clamping structures are provided with two groups, each group of clamping structure is arranged on the side plate 13 and matched with the fixing clamping block 34, and the two-way driving structure can drive the clamping structures to move towards or away from the fixing clamping block 34 so as to fix or release a motor shaft body 9 to be processed, which is placed on the fixing clamping block 34;

the bidirectional driving structure comprises a fixed plate 36 fixedly arranged on two groups of side plates 13, a bidirectional air cylinder 40 is arranged on the fixed plate 36, two groups of telescopic end parts of the bidirectional air cylinder 40 are fixedly provided with a movable plate 3 which is in sliding connection with the side plates 13, and one side of the movable plate 3 far away from the bidirectional air cylinder 40 is provided with a chute 8;

specifically, referring to fig. 1, 8 and 9, two sets of parallel surfaces of the moving plate 3 and the base 1 are provided with clamping grooves 35, and two sets of side plates 13 are provided with open grooves adapted to the moving plate 3, so that the moving plate 3 can slide relative to the side plates 13 and is not separated from the side plates 13.

The clamping structure comprises a movable clamping block 4 which is arranged on the side plate 13 in a sliding manner, a connecting rod 38 is fixedly arranged on one side of the movable clamping block 4, which faces to the bidirectional air cylinder 40, a pulley 39 is rotatably arranged at one end, far away from the movable clamping block 4, of the connecting rod 38, and the pulley 39 is arranged in the chute 8 in a sliding manner;

specifically, please refer to fig. 8 and 9, the above-mentioned moving clamping block 4 and fixed clamping block 34 are all provided with arc clamping surfaces, can be attached to the motor shaft body 9, so as to clamp the motor shaft body 9, and the end of the moving clamping block 4 attached to the side plate 13 is fixedly provided with a clamping block 37, the clamping block 37 is slidably disposed in the moving groove 33 formed in the side plate 13, in the initial state, the two sets of telescopic ends of the bidirectional cylinder 40 pull the two sets of moving plates 3 to approach each other, the pulley 39 slidably disposed in the chute 8 is located at the head end of the chute 8, at this time, the moving clamping block 4 is far away from the fixed clamping block 34, during use, the motor shaft body 9 to be processed needs to be placed into the through groove formed in one set of side plates 13, then the insertion end of the motor shaft body 9 is placed on the fixed clamping block 34, then the bidirectional cylinder 40 is started, the two sets of telescopic ends push the two sets of moving plates 3 to be far away from each other, at this time, the side wall of the chute 8 and the pulley 39 generate extrusion, the pulley 39 can be pushed down along the vertical direction of the space of the base 1, under the action of the connecting rod 38, the moving clamping block 4 moves towards the fixed side plate 33 until the end of the side plate 13 is not fixed to be processed, and the end of the moving clamping block 9 is relatively moved towards the fixed side plate 13, and the end of the moving clamping block 9 can be processed.

In the embodiment of the invention, the motor shaft body 9 to be processed can be fixedly clamped between the two groups of side plates 13 by arranging the fixing component and utilizing the cooperation of the bidirectional driving structure and the clamping structure, so that the motor shaft body 9 cannot rotate in the subsequent processing process, and the key slot is facilitated to be opened.

As an embodiment of the present invention, referring to fig. 1, 2, 3, 4, 5, 6, and 7, a grooving device for a shaft neck of an automobile motor further includes a grooving mechanism disposed on the object placing plate 2, and includes a reciprocating assembly and a lifting assembly, wherein the reciprocating assembly is connected with the sliding plate 15, and the lifting assembly is triggered when the reciprocating assembly drives the sliding plate 15 to reciprocate along an axial direction of the motor shaft body 9, so as to drive a rotating structure slidably mounted on the rotating shaft 12 to move toward the motor shaft body 9;

the reciprocating motion assembly comprises an adjusting structure and an adapting structure, the adjusting structure comprises a first screw rod 23 rotatably installed in a first storage groove formed in the storage plate 2, a first threaded sleeve 7 in threaded connection with the first screw rod 23 is arranged on the first screw rod 23, and a movable belt wheel 21 is rotatably installed on one side of the first threaded sleeve 7, which faces the base 1;

specifically, referring to fig. 1, 2, 3 and 4, the first threaded sleeve 7 is in an "i" structure and slidably connected with the storage plate 2, and specifically, the first screw rod 23 penetrates through one end of the storage plate 2 and is fixedly provided with a knob, and the first screw rod 23 can be driven to rotate by rotating the knob, so that the first threaded sleeve 7 is driven to move along the axial direction of the first screw rod 23, and the moving belt wheel 21 is driven to move along the axial direction of the first screw rod 23 to be close to or far away from the knob.

The adaptation structure comprises a fixed rod 24 fixedly arranged in a second storage groove formed in the storage plate 2, a spring 20 is slidably arranged on the fixed rod 24, one end of the spring 20 is abutted against the storage plate 2, the other end of the spring is abutted against a sliding sleeve 6 slidably arranged on the fixed rod 24, a driven pulley 18 is rotatably arranged on one side of the sliding sleeve 6, which faces the base 1, of the sliding sleeve 6, the driven pulley 18 is connected with a movable pulley 21 and a fixed pulley 19 rotatably arranged on the storage plate 2 through a belt 16, the fixed pulley 19 is fixedly connected with a motor output shaft fixedly arranged on the storage plate 2, a protruding column 22 is fixedly arranged on the belt 16, and the protruding column 22 is slidably connected with the sliding plate 15;

in particular, referring to fig. 1, 2, 3 and 5, the sliding sleeve 6 is configured to be in an "i" structure and slidably connected with the object placing plate 2, in an initial state, the spring 20 is in a compressed state, the spring 20 in the compressed state pushes the sliding sleeve 6 to abut against the object placing plate 2, at this time, the moving pulley 21, the driven pulley 18 and the fixed pulley 19 form the belt 16 into a triangle structure, the first threaded sleeve 7 is far away from the knob, the distance between the moving pulley 21 and the fixed pulley 19 is the largest, and as a result, when the first screw rod 23 drives the first threaded sleeve 7 to gradually approach the knob along the axial direction thereof, the sliding sleeve 6 moves towards the fixed pulley 19 along the axial direction of the fixed rod 24 due to the connection of the fixed length belt 16, so that the distance between the fixed pulley 19 and the driven pulley 18 is shortened, and the movement stroke of the sliding plate 15 is shortened.

The lifting assembly comprises a second screw rod 14 rotatably arranged on the rotating shaft 12, a second threaded sleeve 29 in threaded connection with the second screw rod 14 is arranged on the second screw rod 14, a ratchet wheel 17 is fixedly arranged at one end of the second screw rod 14, which faces the sliding plate 15, and the ratchet wheel 17 is matched with a ratchet plate 27 fixedly arranged on the object placing plate 2;

specifically, referring to fig. 1, 2 and 6, a series of slots are provided on the ratchet plate 27 at equal intervals, a pawl is rotatably mounted in the slots, and is connected with the ratchet plate 27 through a spring plate, so that the pawl is always kept in an open state, when the sliding plate 15 is driven by the belt 16 to move from the fixed pulley 19 to the driven pulley 18, the ratchet 17 is engaged with the ratchet plate 27 to rotate, and then the second screw 14 is driven to rotate relative to the rotating shaft 12, so as to drive the second threaded sleeve 29 to gradually move away from the ratchet 17, thereby driving the rotating structure to move towards the motor shaft body 9 to slot the motor shaft body 9.

The rotary structure comprises a sleeve joint ring 30 rotatably mounted on the second threaded sleeve 29, two groups of connecting rods 28 are equidistantly arranged on the sleeve joint ring 30 along the circumferential direction of the sleeve joint ring, a mounting piece 11 is fixedly arranged at one end, far away from the sleeve joint ring 30, of each connecting rod 28, and a milling cutter 10 is detachably mounted at one end, far away from the sleeve joint ring 30, of each mounting piece 11;

specifically, referring to fig. 7, two groups of sliding blocks 31 are equidistantly disposed at one end of the rotating shaft 12 away from the sliding plate 15 along the circumferential direction thereof, the sliding blocks 31 are slidably disposed in a guide groove 32 formed in the inner wall of the mounting member 11, so that the mounting member 11 can only slide along the axial direction of the rotating shaft 12.

In the embodiment of the invention, by arranging the slotting mechanism and utilizing the cooperation between the reciprocating assembly and the lifting assembly, the sliding plate 15 can be driven to reciprocate along the axial direction of the object placing plate 2, so that the rotating shaft 12 is driven to reciprocate along the axial direction of the motor shaft body 9, the milling cutter 10 arranged on the rotating shaft 12 can cut the Z-shaped slot body of the motor shaft body 9, compared with the traditional disposable slot body cutting, the friction generated between the milling cutter 10 and the motor shaft body 9 when the slot body is cut can be reduced, the milling cutter 10 and the motor shaft body 9 are prevented from being damaged due to overhigh temperature, and meanwhile, the stroke distance of the reciprocating motion of the sliding plate 15 can be changed by adjusting the adjusting structure in the reciprocating assembly, so that the cutting length of the milling cutter 10 is changed, the practicability of the device is improved, and the slot body cutting without length is suitable.

As an embodiment of the present invention, a method for grooving a journal key slot of an automotive motor is also provided, and the grooving apparatus for a journal key slot of an automotive motor is adopted, and includes the following steps:

step one: in the initial state, the second threaded sleeve 29 is attached to the ratchet 17, the movable clamping block 4 is far away from the fixed clamping block 34, the motor shaft body 9 to be processed passes through one group of side plates 13 and is placed on the two groups of fixed clamping blocks 34, then the bidirectional cylinder 40 is started, the movable clamping block 4 moves towards the fixed clamping block 34, and the motor shaft body 9 to be processed is fixed between the movable clamping block 4 and the fixed clamping block 34;

step two: the first screw rod 23 is adjusted to drive the first threaded sleeve 7 to move along the axial direction of the first screw rod 23 so as to change the distance between the fixed belt pulley 19 and the driven belt pulley 18 and adapt to the opening of key grooves with different lengths.

Step three: the second motor 26 is started, the rotating shaft 12 can drive the milling cutter 10 which is arranged on the rotating shaft 12 in a sliding way to rotate in the same direction, then the first motor 41 is started, the belt 16 continuously rotates in the same direction, and the sliding plate 15 can be driven to reciprocate along the length direction of the object placing plate 2;

step four: the first motor 41 and the second motor 26 continuously work, the ratchet 17 moving towards the fixed belt wheel 19 and the ratchet plate 27 enter a meshing transmission state, the second screw rod 14 is driven to rotate, and the second threaded sleeve 29 is driven to drive the milling cutter 10 to move towards the motor shaft body 9;

step five: the belt 16 drives the sliding plate 15 to gradually move away from the fixed belt wheel 19, the ratchet wheel 17 is not meshed with the ratchet plate 27, the position of the milling cutter 10 is unchanged in height, and meanwhile, the milling cutter moves along with the sliding plate 15 so as to cut a key slot of a motor shaft;

step six: and repeating the fourth step and the fifth step, so that the cutting of the motor neck key groove can be completed.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (8)

1. An automotive motor journal keyway slotting device, comprising:

the base (1), two groups of side plates (13) are fixedly arranged on the base (1), fixed clamping blocks (34) are fixedly arranged on the two groups of side plates (13), a storage plate (2) is fixedly arranged between the two groups of side plates (13), a sliding plate (15) is arranged on the storage plate (2) in a sliding manner, and a rotating shaft (12) is rotatably arranged on the sliding plate (15);

the fixing assembly comprises a two-way driving structure and a clamping structure which are arranged in a linkage way, wherein the clamping structure is provided with two groups, each group of clamping structure is arranged on the side plate (13) and matched with the fixed clamping block (34), and the two-way driving structure can drive the clamping structure to move towards or away from the fixed clamping block (34) so as to fix or release a motor shaft body (9) to be processed, which is placed on the fixed clamping block (34);

the grooving mechanism is arranged on the storage plate (2) and comprises a reciprocating motion assembly and a lifting assembly, wherein the reciprocating motion assembly is connected with the sliding plate (15), the reciprocating motion assembly drives the sliding plate (15) to move towards the motor shaft body (9) in the reciprocating motion process along the axial direction of the motor shaft body (9), and the lifting assembly is triggered and can drive a rotating structure which is slidably arranged on the rotating shaft (12) to move towards the motor shaft body (9).

2. The grooving device for automobile motor shaft neck key grooves according to claim 1, characterized in that the bidirectional driving structure comprises a fixed plate (36) fixedly arranged on two groups of side plates (13), a bidirectional cylinder (40) is arranged on the fixed plate (36), two groups of telescopic ends of the bidirectional cylinder (40) are fixedly provided with a movable plate (3) which is in sliding connection with the side plates (13), and a chute (8) is arranged on one side, far away from the bidirectional cylinder (40), of the movable plate (3).

3. The automobile motor journal keyway slotting device according to claim 2, wherein the clamping structure comprises a movable clamping block (4) arranged on the side plate (13) in a sliding manner, a connecting rod (38) is fixedly arranged on one side of the movable clamping block (4) towards the bidirectional cylinder (40), a pulley (39) is rotatably arranged at one end, far away from the movable clamping block (4), of the connecting rod (38), and the pulley (39) is arranged in the chute (8) in a sliding manner.

4. The grooving device for the journal key slot of the automobile motor according to claim 2, wherein the reciprocating motion assembly comprises an adjusting structure and an adapting structure, the adjusting structure comprises a first screw rod (23) rotatably installed in a first storage groove formed in the storage plate (2), a first threaded sleeve (7) in threaded connection with the first screw rod (23) is arranged on the first screw rod (23), and a movable belt wheel (21) is rotatably installed on one side of the first threaded sleeve (7) towards the base (1).

5. The automobile motor shaft neck keyway slotting device according to claim 4, wherein the adapting structure comprises a fixed rod (24) fixedly arranged in a second storage groove formed in the storage plate (2), a spring (20) is slidably arranged on the fixed rod (24), one end of the spring (20) is abutted to the storage plate (2), the other end of the spring is abutted to a sliding sleeve (6) slidably arranged on the fixed rod (24), a driven pulley (18) is rotatably arranged on the sliding sleeve (6) towards one side of the base (1), the driven pulley (18) is connected with a movable pulley (21) through a belt (16) and a fixed pulley (19) rotatably arranged on the storage plate (2), the fixed pulley (19) is fixedly connected with a motor output shaft fixedly arranged on the storage plate (2), a protruding column (22) is fixedly arranged on the belt (16), and the protruding column (22) is slidably connected with the sliding plate (15).

6. The grooving device for automobile motor shaft neck keyways according to claim 4, characterized in that the lifting assembly comprises a second screw rod (14) rotatably arranged on the rotating shaft (12), a second threaded sleeve (29) in threaded connection with the second screw rod is arranged on the second screw rod (14), a ratchet wheel (17) is fixedly arranged at one end of the second screw rod (14) facing the sliding plate (15), and the ratchet wheel (17) is matched with a ratchet plate (27) fixedly arranged on the object placing plate (2).

7. The grooving device for automobile motor shaft neck key grooves according to claim 6, characterized in that the rotating structure comprises a sleeve joint ring (30) rotatably mounted on the second threaded sleeve (29), the sleeve joint ring (30) is provided with two groups of connecting rods (28) along the circumferential direction at equal intervals, one end, far away from the sleeve joint ring (30), of each connecting rod (28) is fixedly provided with a mounting piece (11), and one end, far away from the sleeve joint ring (30), of each mounting piece (11) is detachably provided with a milling cutter (10).

8. A method for grooving a shaft neck key groove of an automobile motor, which is characterized by adopting the device for grooving the shaft neck key groove of the automobile motor according to claim 1, comprising the following steps:

step one: in an initial state, the second threaded sleeve (29) is attached to the ratchet wheel (17), the movable clamping block (4) is far away from the fixed clamping block (34), a motor shaft body (9) to be processed passes through one group of side plates (13) and is placed on the two groups of fixed clamping blocks (34), then a bidirectional air cylinder (40) is started, the movable clamping block (4) moves towards the fixed clamping block (34), and the motor shaft body (9) to be processed is fixed between the movable clamping block (4) and the fixed clamping block (34);

step two: the first screw rod (23) is regulated, and the first threaded sleeve (7) is driven to move along the axial direction of the first screw rod (23) so as to change the distance between the fixed belt wheel (19) and the driven belt wheel (18) and adapt to the opening of key grooves with different lengths;

step three: starting a second motor (26), enabling the rotating shaft (12) to drive the milling cutter (10) arranged on the rotating shaft (12) in a sliding manner to rotate in the same direction, then starting a first motor (41), enabling the belt (16) to continuously rotate in the same direction, and enabling the sliding plate (15) to be driven to reciprocate along the length direction of the object placing plate (2);

step four: the first motor (41) and the second motor (26) continuously work, a ratchet wheel (17) moving towards the fixed belt wheel (19) and the ratchet plate (27) enter a meshing transmission state, the second screw rod (14) can be driven to rotate, and the second threaded sleeve (29) is driven to drive the milling cutter (10) to move towards the motor shaft body (9);

step five: the belt (16) drives the sliding plate (15) to gradually separate from the fixed belt wheel (19), at the moment, the ratchet wheel (17) is not meshed with the ratchet plate (27), the position of the milling cutter (10) is unchanged in height, and meanwhile, the milling cutter moves along with the sliding plate (15) so as to cut a key slot of a motor shaft;

step six: and repeating the fourth step and the fifth step, so that the cutting of the motor neck key groove can be completed.