Automatic milling equipment for manufacturing motor shaft

Abstract

The invention relates to the technical field of motor shaft manufacturing, in particular to automatic milling equipment for motor shaft manufacturing. Comprising an equipment frame; a bottom plate is installed on the equipment frame, a milling mechanism used for milling a motor shaft from the side face is arranged on the rear side of the upper end of the bottom plate, and a fixing mechanism is arranged on the front side of the upper end of the bottom plate. According to the invention, the fixing mechanism firstly fixes and straightens the motor shaft, then the motor shaft is subjected to self-adaptive pressing through the pressing part, and then the milling mechanism mills the motor shaft from the side surface and cooperates with a cutting fluid, so that chippings generated in the milling process can be discharged from a key slot, and the damage to the key slot and a milling cutter is avoided; and the pressing part moves along with the milling mechanism in the milling process of the milling mechanism, so that the milling part of the milling cutter is relatively extruded and supported, the stability of the motor shaft is improved, vibration is reduced, and the milling quality of the key groove of the motor shaft is improved.

Description

Technical Field

[0001] The invention relates to the technical field of motor shaft manufacturing, and in particular to automated milling processing equipment for motor shaft manufacturing. Background Art

[0002] The motor shaft refers to the main component inside the motor for transmitting rotational power. It is one of the core components of the motor and is usually made of high-strength steel to ensure sufficient mechanical strength and wear resistance. The manufacture of the motor shaft includes heat treatment, turning, grinding, milling, etc., among which milling is mainly used for the processing of keyways on the motor shaft. The existing milling of the motor shaft is usually to fix the motor shaft with a fixture, and then the milling cutter is fed from above for milling.

[0003] However, the current motor shaft has the following problems during milling: 1. During milling, there is no device for pressing the motor shaft on the side opposite to the milling cutter, so that the motor shaft is prone to vibrate during milling, thereby affecting the quality of keyway milling.

[0004] 2. The existing milling process usually uses a milling cutter to perform milling from above, so that the debris generated by milling is easy to remain in the keyway and is not easy to be washed away by the cutting fluid, which can easily cause damage to the milling cutter and the keyway. Summary of the invention

[0005] In view of the above problems, an embodiment of the present application provides an automated milling processing equipment for manufacturing a motor shaft to solve the above-mentioned technical problems.

[0006] In order to achieve the above-mentioned purpose, the embodiment of the present application provides the following technical solution: the embodiment of the present application provides an automated milling processing equipment for manufacturing a motor shaft, including an equipment frame; a base plate is installed on the equipment frame, and a milling mechanism for milling the motor shaft from the side is arranged on the upper rear side of the base plate, and a fixing mechanism is arranged on the upper front side of the base plate.

[0007] The fixing mechanism includes a positioning plate, and two positioning plates are symmetrically and slidably installed on the upper end of the base plate. The positioning plates are in an inverted T-shaped structure. A drainage groove is opened on the base plate, which is located between the two positioning plates and passes through the base plate. A bidirectional screw is rotatably installed on the front side of the upper end of the base plate through a bearing seat. The two positioning plates are threadedly connected to the two threaded sections of the bidirectional screw respectively. A No. 1 motor is installed on the upper end of the base plate, and the No. 1 motor and the bidirectional screw are connected through a No. 1 belt drive.

[0008] The bottom plate is provided with a pressing portion for pressing the front side of the motor shaft, the milling mechanism is provided with an auxiliary support component for improving the milling stability, and the two positioning plates are provided with clamping portions for limiting and aligning the motor shaft.

[0009] As a preferred solution, the milling mechanism includes a first electric slide rail. The first electric slide rail is fixed to the upper end of the base plate. A base is slidably installed in the first electric slide rail. A second electric slide rail is fixed to the upper end of the base. A driving assembly is slidably installed in the second electric slide rail. The front end of the driving assembly is drivingly connected to a chuck. A milling cutter is installed on the chuck. A cooling part is provided on the driving assembly.

[0010] As a preferred solution, the pressing part includes a limiting plate. Two limiting plates located on the front side of the first electric slide rail are symmetrically installed on the left and right sides of the lower end of the base. A support plate is slidably installed back and forth between the two limiting plates. The front end of the support plate is provided with a U-shaped plate located in front of the drainage groove. Sliding plates are slidably installed on the opposite surfaces of the two vertical sections of the U-shaped plate. A fixing plate is installed at the rear side between the two sliding plates. The fixing plate has a U-shaped structure. A roller shaft is rotatably installed between the two horizontal sections of the fixing plate. A side pressing member for laterally pressing the motor shaft is provided on the U-shaped plate. A pushing and pulling member for pushing and pulling the support plate to move is provided on the base.

[0011] As a preferred solution, the auxiliary support assembly is a linear bearing. The linear bearing is slidably sleeved on the milling cutter, and the linear bearing is fixedly installed on the second electric slide rail through a support seat.

[0012] As a preferred solution, the auxiliary support assembly is a support part provided on the support plate for supporting and strengthening the milling cutter. The support part includes a vertical plate. The vertical plate is slidably installed back and forth on the support plate. A first compression spring is installed between the vertical plate and the U-shaped plate. A fixing ring is fixedly installed on the upper part of the vertical plate. Two semi-circular rings are symmetrically installed on the left and right sides of the rear side of the fixing ring through two groups of second compression springs. The two semi-circular rings are butted to form a complete circular ring. Ball bearings are evenly installed on the inner side wall of the semi-circular ring for rolling. A resisting rod in contact with the driving assembly is installed at the rear end of each of the two semi-circular rings. A guiding member for guiding the two semi-circular rings to squeeze the milling cutter is provided on the fixing ring.

[0013] The guiding member includes a guiding plate. Two guiding plates are symmetrically installed on the left and right sides of the front end of the semi-circular ring. Sliding grooves corresponding to the four guiding plates are opened on the fixing ring. The guiding plates slidably penetrate through the corresponding sliding grooves. Second guide posts are installed at both the upper and lower ends of the guiding plates. Oblique grooves corresponding to the second guide posts are opened on the upper and lower inner side walls of the sliding grooves.

[0014] As a preferred solution, the clamping part includes clamping blocks. The vertical sections of the two positioning plates are each provided with circumferentially distributed clamping blocks. Limiting grooves corresponding to the clamping blocks are opened on the positioning plates. Driving plates slidably penetrating through the corresponding limiting grooves are installed on the clamping blocks. Driven gears are rotatably installed on the opposite surfaces of the two positioning plates. Arc-shaped grooves corresponding to the driving plates are opened on the driven gears. First guide posts slidably penetrating through the corresponding arc-shaped grooves are installed on the driving plates. An actuating member for driving the corresponding driven gear to rotate is provided on the positioning plate.

[0015] As a preferred embodiment, the side pressure member includes a tooth plate, two tooth plates are symmetrically installed at the front end of the fixed plate, two vertical sections of the C-shaped plate are rotatably connected with two rotating shafts that are symmetrical about the slide plate, a torsion spring is arranged between the rotating shaft and the two vertical sections of the C-shaped plate, a spur gear meshing with the corresponding tooth plate is fixedly installed on the rotating shaft, a support plate is fixedly installed on the rotating shaft, a support is installed at the other end of the support plate, and a pressure roller that presses against the side of the motor shaft is rotatably installed on the support.

[0016] As a preferred solution, the actuator comprises a stepper motor, and the opposite ends of the two positioning plates are both mounted with stepper motors via motor seats, and the output shaft of the stepper motor is fixedly mounted with a driving gear for meshing with a driven gear.

[0017] As a preferred embodiment, the push-pull member includes a shaft rod, and the rear end of the horizontal section of the U-shaped plate is equipped with the shaft rod, the rear end of the shaft rod slides through the vertical plate and the base, an electric telescopic rod is installed at the left end of the base, and the rear end of the telescopic section of the electric telescopic rod is equipped with a connecting plate fixedly connected to the rear end of the shaft rod.

[0018] As a preferred embodiment, the cooling part includes an inverted L-shaped plate, the upper end of the driving assembly is equipped with an inverted L-shaped plate, the lower end of the horizontal section of the inverted L-shaped plate is equipped with a liquid storage box, the front end of the liquid storage box is connected to a liquid spray pipe, and the rear end of the liquid storage box is connected to a liquid inlet pipe.

[0019] The above one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects: 1. The fixing mechanism provided in the present invention first fixes and aligns the motor shaft, and then adaptively presses the motor shaft through the pressing part, and then the milling mechanism mills the motor shaft from the side, and cooperates with the cutting fluid to ensure that the debris generated during the milling process can be discharged from the keyway to avoid damage to the keyway and the milling cutter. During the milling process of the milling mechanism, the pressing part moves with the milling mechanism, thereby ensuring relative extrusion support for the milling part of the milling cutter, thereby improving the stability of the motor shaft, reducing the occurrence of vibration, and thus improving the quality of the motor shaft keyway milling.

[0020] 2. The pressing part provided in the present invention first contacts the motor shaft through the roller shaft, and then the two pressing rollers contact the motor shaft through the cooperation of the rack and the spur gear, so that the pressing operation is completed after all three contact the motor shaft. In this way, the pressing operation can be performed on motor shafts of different diameters, and then the same motor shaft manufacturing automated milling processing equipment can process motor shafts of various specifications, thereby improving the versatility and utilization rate of the motor shaft manufacturing automated milling processing equipment.

[0021] 3. The linear bearing provided in the present invention always maintains support for the milling cutter, provides smooth linear motion for the milling cutter, helps to reduce vibration during the milling process, and thus improves the accuracy and surface quality of keyway processing.

[0022] 4. The support portion provided in the present invention pushes the abutment rod through the driving component, and under the guidance of the guide member, the semicircular ring first clamps the bladeless section of the milling cutter through the ball bearing to support the milling cutter, and then performs milling processing, thereby improving the stability of the milling cutter. When milling motor shafts of different diameters, the supporting point of the semicircular ring on the milling cutter remains unchanged, so that the force conditions of the milling cutter during each processing are the same, which helps to improve the consistency of processing and ensure the stable quality of each processing. After milling is completed, the semicircular ring is away from the milling cutter to avoid unnecessary contact and friction; therefore, wear can be reduced, which helps to extend the service life of the milling cutter and the semicircular ring. The semicircular ring does not contact the milling cutter in the non-working state, and also provides a good channel for air flow, so that the milling cutter can more effectively dissipate the heat generated during operation.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0025] Figure 1 This is a schematic diagram of the first structure of the auxiliary support assembly of this application.

[0026] Figure 2 for Figure 1 A magnified view of the structure in Figure 2.

[0027] Figure 3 This is a schematic diagram of the second structure of the auxiliary support assembly of the present application.

[0028] Figure 4 This is a schematic diagram of the structure of the milling mechanism of the present application.

[0029] Figure 5 for Figure 4 Enlarged view of the structure at B in the figure.

[0030] Figure 6 It is a schematic diagram of the structure of the clamping part of the present application.

[0031] Figure 7This is a schematic diagram of the structure of the push-pull member and the pressing portion of the present application.

[0032] Figure 8 for Figure 7 Enlarged view of the structure at point C in the middle.

[0033] Fig. 9 for Figure 7 Enlarged view of the structure at point D in the middle.

[0034] Fig.10 This is a schematic diagram of the structure of the guide member of the present application.

[0035] Figure numerals: 10, equipment frame; 11, bottom plate; 2, fixing mechanism; 20, positioning plate; 21, bidirectional screw; 22, No. 1 motor; 23, pressing part; 230, limit plate; 231, support plate; 232, shaped plate; 233, slide plate; 234, fixing plate; 235, roller shaft; 4, side pressure member; 40, tooth plate; 41, spur gear; 42, support plate; 43, support; 44, pressure roller; 5, push-pull member; 50, shaft; 51, electric telescopic rod; 52, connecting plate; 24, supporting part; 240, vertical plate; 241, No. 1 compression spring; 242, fixing ring; 243, No. 2 compression spring; 244, semicircular ring; 245. push rod; 6. guide member; 60. guide plate; 61. slide groove; 62. guide column No. 2; 63. inclined groove; 25. clamping part; 250. clamping block; 251. limit groove; 252. drive plate; 253. driven gear; 254. arc groove; 255. guide column No. 1; 7. actuator; 70. stepper motor; 71. driving gear; 3. milling mechanism; 30. electric slide rail No. 1; 31. base; 32. drive assembly; 33. chuck; 34. milling cutter; 35. cooling part; 350. inverted L-shaped plate; 351. liquid storage box; 352. spray pipe; 353. liquid inlet pipe; 8. linear bearing; 9. support seat. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0037] like Figure 1 As shown, an automated milling processing equipment for manufacturing motor shafts includes an equipment frame 10; a base plate 11 is installed on the equipment frame 10, a milling mechanism 3 for milling the motor shaft from the side is arranged on the upper rear side of the base plate 11, and a fixing mechanism 2 is arranged on the upper front side of the base plate 11.

[0038] like Figure 1 As shown, the fixing mechanism 2 includes a positioning plate 20, and two positioning plates 20 are symmetrically and slidably installed on the upper end of the base plate 11. The positioning plate 20 is an inverted T-shaped structure. A drainage groove is opened on the base plate 11 and is located between the two positioning plates 20 and passes through the base plate 11. A bidirectional screw 21 is rotatably installed on the front side of the upper end of the base plate 11 through a bearing seat. The two positioning plates 20 are threadedly connected to the two threaded sections of the bidirectional screw 21 respectively. A No. 1 motor 22 is installed on the upper end of the base plate 11, and the No. 1 motor 22 and the bidirectional screw 21 are connected through a No. 1 belt drive.

[0039] like Figure 1 , Figure 3 and Figure 4 As shown, the base plate 11 is provided with a pressing portion 23 for pressing the front side of the motor shaft, the milling mechanism 3 is provided with an auxiliary support component for improving the milling stability, and the two positioning plates 20 are provided with a clamping portion 25 for limiting and aligning the motor shaft.

[0040] During specific work, the motor shaft is manually placed between the two positioning plates 20, and then one end of the motor shaft is clamped and fixed by the clamping part 25, and then the No. 1 motor 22 drives the bidirectional screw 21 to rotate, and the bidirectional screw 21 drives the two positioning plates 20 to approach each other, and the positioning plate 20 will squeeze and fix the motor shaft, and then the other clamping part 25 fixes the other end of the motor shaft to limit its movement, and then the pressing part 23 moves backward to press the front surface of the motor shaft to improve the stability of the motor shaft during milling, and then the milling mechanism 3 moves close to the motor shaft, and then the motor shaft is milled, and the milling mechanism 3 will cooperate with the support part 24 during the movement to improve the stability of the milling mechanism 3 during the milling process, thereby improving the quality of the motor shaft keyway milling.

[0041] like Figure 4 , Figure 5 and Figure 6 As shown, the clamping portion 25 includes a clamping block 250, and the vertical sections of the two positioning plates 20 are each provided with a circumferentially distributed clamping block 250, and the positioning plate 20 is provided with a limiting groove 251 corresponding to the clamping block 250 one by one, and a driving plate 252 sliding through the corresponding limiting groove 251 is installed on the clamping block 250, and the opposite back surfaces of the two positioning plates 20 are both rotatably installed with a driven gear 253, and the driven gear 253 is provided with an arc groove 254 corresponding to the driving plate 252 one by one, and a No. 1 guide column 255 sliding through the corresponding arc groove 254 is installed on the driving plate 252, and the positioning plate 20 is provided with an actuator 7 for driving the corresponding driven gear 253 to rotate.

[0042] like Figure 3 and Figure 4As shown, the actuator 7 includes a stepper motor 70 , and the stepper motors 70 are mounted on opposite ends of the two positioning plates 20 through a motor seat, and a driving gear 71 for meshing with the driven gear 253 is fixedly mounted on the output shaft of the stepper motor 70 .

[0043] During specific operation, the stepper motor 70 drives the corresponding driven gear 253 to rotate through the driving gear 71, and the driven gear 253 cooperates with the corresponding arc groove 254 through the No. 1 guide column 255 to push the driving plate 252 to move toward the motor shaft. The driving plate 252 drives the corresponding clamping block 250 to move toward the motor shaft to pre-support it, and then the two positioning plates 20 squeeze and fix the motor shaft, and then the clamping block 250 on the other side clamps and fixes the corresponding motor shaft end to achieve fixation and alignment of the motor shaft.

[0044] like Figure 3 , Figure 4 and Figure 7 As shown, the milling mechanism 3 includes an electric slide rail No. 30, the upper end of the base plate 11 is fixed with the electric slide rail No. 30, a base 31 is slidably installed in the electric slide rail No. 1, a No. 2 electric slide rail is fixed on the upper end of the base 31, a driving component 32 is slidably installed in the No. 2 electric slide rail, the front end of the driving component 32 is transmission-connected with a chuck 33, a milling cutter 34 is installed on the chuck 33, and a cooling part 35 is provided on the driving component 32.

[0045] like Figure 4 and Figure 5 As shown, the cooling part 35 includes an inverted L-shaped plate 350, the inverted L-shaped plate 350 is installed on the upper end of the driving component 32, and a liquid storage box 351 is installed on the lower end of the horizontal section of the inverted L-shaped plate 350. The front end of the liquid storage box 351 is connected to a liquid spray pipe 352, and the rear end of the liquid storage box 351 is connected to a liquid inlet pipe 353.

[0046] During specific operation, the No. 1 electric slide 30 drives the milling mechanism 3 to move to the position to be milled of the motor shaft, and then the No. 2 electric slide drives the driving assembly 32 to move forward, and the driving assembly 32 drives the chuck 33, the milling cutter 34 and the cooling part 35 to move forward, and the driving assembly 32 drives the milling cutter 34 to rotate and move forward through the chuck 33 to mill the motor shaft to the required depth of the corresponding keyway, and then the No. 1 electric slide 30 drives the milling cutter 34 to move slowly to the left to mill the keyway of the motor shaft. During the milling process, the external pump body is connected to the liquid inlet pipe 353 through the external delivery pipe to deliver the cutting fluid to the liquid storage box 351. As the cutting fluid in the liquid storage box 351 increases, the pressure increases, and the cutting fluid is sprayed to the cutting position of the motor shaft through the spray pipe 352, thereby cooling the milling cutter 34 and flushing the debris out of the keyway. In addition, the milling cutter 34 mills the motor shaft from the side, which can facilitate the removal of debris from the keyway, thereby ensuring the quality and smoothness of the keyway processing.

[0047] As Figure 4 , Figure 7 , Figure 8 and Fig. 9 shown, the pressing part 23 includes a limiting plate 230. Two limiting plates 230 are symmetrically installed on the lower left and right of the base 31 and are located on the front side of the first electric slide rail 30. A support plate 231 is slidably installed between the two limiting plates 230 in the front and back directions. The front end of the support plate 231 is provided with a U-shaped plate 232 located on the front side of the drainage groove. Sliding plates 233 are slidably installed on the opposite surfaces of the two vertical sections of the U-shaped plate 232. A fixing plate 234 is installed at the rear side between the two sliding plates 233. The fixing plate 234 has a U-shaped structure. A roller shaft 235 is rotatably installed between the two horizontal sections of the fixing plate 234. A side pressing member 4 for laterally pressing the motor shaft is provided on the U-shaped plate 232, and a pushing and pulling member 5 for pushing and pulling the support plate 231 to move is provided on the base 31.

[0048] As Figure 3 , Figure 4 and Figure 7 shown, the pushing and pulling member 5 includes a shaft rod 50. The rear end of the horizontal section of the U-shaped plate 232 is provided with a shaft rod 50. The rear end of the shaft rod 50 slidably penetrates through the base 31. An electric telescopic rod 51 is installed at the left end of the base 31. The rear end of the telescopic section of the electric telescopic rod 51 is provided with a connecting plate 52 fixedly connected to the rear end of the shaft rod 50.

[0049] As Figure 7 and Figure 8 shown, the side pressing member 4 includes a toothed plate 40. Two toothed plates 40 are symmetrically installed on the front end of the fixing plate 234 in the up and down directions. Two rotating shafts that are symmetrically arranged up and down with respect to the sliding plate 233 are rotatably connected between the two vertical sections of the U-shaped plate 232. A torsion spring (the torsion spring is not shown in the figure) is provided between the rotating shafts and the two vertical sections of the U-shaped plate 232. A spur gear 41 meshing with the corresponding toothed plate 40 is fixedly installed on the rotating shaft. A support plate 42 is fixedly installed on the rotating shaft. The other end of the support plate 42 is provided with a support 43. A pressure roller 44 that laterally presses the motor shaft is rotatably installed on each support 43.

[0050] During operation, in the initial state, the pressing portion 23 is located in front of the motor shaft and does not contact the motor shaft. After the motor shaft is fixed, the electric telescopic rod 51 pushes the shaft 50 to move backward through the connecting plate 52, and the shaft 50 drives the shaped plate 232, the support plate 231 and the side pressure piece 4 to move backward. During the movement of the shaped plate 232, the roller shaft 235 is driven to contact the motor shaft. Since the roller shaft 235 is blocked by the motor shaft and remains motionless, the shaped plate 232 continues to drive the side pressure piece 4 to move backward, and the side pressure piece 4 moves backward. During the movement, the spur gear 41 will mesh with the corresponding tooth plate 40 and rotate. The rotation of the spur gear 41 drives the corresponding pressure roller 44 to press against the motor shaft through the corresponding rotating shaft, support plate 42 and support 43, and twists the torsion spring. After the roller shaft 235 and the pressure roller 44 are pressed against the motor shaft, the profile plate 232 cannot move backward any further, while the roller shaft 235 and the pressure roller 44 keep pressing against the motor shaft and move with the milling cutter 34, so as to improve the stability of the motor shaft during milling and reduce its vibration, thereby improving the quality of keyway milling.

[0051] After the keyway milling is completed, the milling cutter 34 moves away from the motor shaft and resets, and then the electric telescopic rod 51 pushes the pressing part 23 away from the motor shaft to the initial position through the shaft rod 50; in the process of the pressing part 23 moving away from the motor shaft, the torsion spring will drive the corresponding rotating shaft to rotate in the opposite direction, and the rotating shaft will drive the spur gear 41 to rotate in the opposite direction and reset, and push the roller shaft 235 to reset through the tooth plate 40, so as to subsequently perform pressing support on the motor shaft.

[0052] like Figure 1 and Figure 2 As shown, the auxiliary support assembly is a linear bearing 8, which is slidably sleeved on the milling cutter 34, and the linear bearing 8 is fixedly mounted on the second electric slide rail through a support seat 9.

[0053] During specific operation, the linear bearing 8 always maintains support for the milling cutter 34, providing the milling cutter 34 with smooth linear motion, which helps to reduce vibration during the milling process, thereby improving the accuracy and surface quality of the keyway processing. However, since the linear bearing 8 always maintains support for the milling cutter 34, the free flow of air is hindered, and the space for air flow is limited, which affects the heat dissipation effect of the milling cutter 34. Secondly, since the linear bearing 8 is fixed in position, when the milling cutter 34 mills motor shafts of different diameters, the support position of the linear bearing 8 on the bladeless part of the milling cutter 34 will change, and this change will affect the stress state of the milling cutter 34. Different support points will cause the deflection angle and deflection of the milling cutter 34 to change, thereby affecting the consistency of the motor shaft processing, and as the diameter of the motor shaft being processed changes, the effective support points and support force of the milling cutter 34 will also change accordingly, resulting in an unstable stress state of the milling cutter 34, which in turn causes additional wear of the milling cutter 34.

[0054] like Figure 3 , Figure 4 , Figure 7 , Figure 8 and Fig. 9 As shown, the auxiliary support assembly can also be a support part 24 arranged on the support plate 231 for supporting and reinforcing the milling cutter 34, the support part 24 includes a vertical plate 240, the vertical plate 240 is slidably installed on the support plate 231, the shaft rod 50 slides through the vertical plate 240, a No. 1 compression spring 241 is installed between the vertical plate 240 and the shaped plate 232, a fixing ring 242 is fixedly installed on the upper part of the vertical plate 240, and two semicircular rings 244 are symmetrically installed on the rear side of the fixing ring 242 through two groups of No. 2 compression springs 243, the two semicircular rings 244 are docked and combined into a full circle ring, and the inner side walls of the semicircular rings 244 are evenly rolled and installed with balls, and the rear ends of the two semicircular rings 244 are installed with abutment rods 245 that contact with the driving assembly 32, and a guide 6 for guiding the two semicircular rings 244 to extrude the milling cutter 34 is provided on the fixing ring 242.

[0055] like Fig. 9 and Fig.10 As shown, the guide member 6 includes a guide plate 60, and two guide plates 60 are symmetrically installed at the front end of the semicircular ring 244. The fixed ring 242 is provided with sliding grooves 61 corresponding to the four guide plates 60 one by one. The guide plates 60 slide through the corresponding sliding grooves 61. No. 2 guide columns 62 are installed at the upper and lower ends of the guide plate 60, and the upper and lower inner walls of the sliding grooves 61 are provided with inclined grooves 63 corresponding to the No. 2 guide columns 62 one by one.

[0056] During specific operation, the No. 2 electric slide rail drives the driving assembly 32 to move forward and pushes the push rod 245. Since the vertical plate 240 is hindered by the No. 1 compression spring 241, the push rod 245 first pushes the corresponding semicircular ring 244 to move forward, and the semicircular ring 244 pushes the corresponding guide plate 60 forward. The guide plate 60 cooperates with the No. 2 guide column 62 through the inclined groove 63 to guide the semicircular ring 244 to move toward the milling cutter 34. The two semicircular rings 244 squeeze the bladeless section of the milling cutter 34 and the position close to the blade through the ball bearings to support the milling cutter 34. Then, as the driving assembly 32 continues to move, and the semicircular ring 244 cannot move further due to the contact between the ball bearings and the milling cutter 34, the driving assembly 32 will push the semicircular ring 244 through the push rod 245. The circular ring 244, the guide plate 60, the fixed ring 242 and the vertical plate 240 move forward synchronously with the milling cutter 34, and the milling cutter 34 rotates between the two semicircular rings 244 to perform feed milling; the movement of the vertical plate 240 will compress the No. 1 compression spring 241, and the reaction force of the compressed No. 1 compression spring 241 acts on the vertical plate 240, so that the semicircular ring 244 can maintain support for the milling cutter 34; because the semicircular ring 244 first squeezes and supports the milling cutter 34, and then feeds with the milling cutter 34 to mill the motor shaft, therefore, when milling motor shafts of different diameters, the support point of the semicircular ring 244 on the milling cutter 34 remains unchanged, so that the force condition of the milling cutter 34 is the same each time during processing, which helps to improve the consistency of processing and ensure the stable quality of each processing.

[0057] After the milling of a keyway of the motor shaft is completed, the No. 2 electric slide rail drives the drive assembly 32 to move backward away from the motor shaft, and at the same time, the vertical plate 240 moves backward synchronously under the action of the No. 1 compression spring 241, and then the vertical plate 240 moves to reset, and then the drive assembly 32 does not conflict with the stop rod 245, and the semi-circular ring 244 is pushed away from the fixed ring 242 under the action of the No. 2 compression spring 243, and at the same time, under the cooperation of the inclined groove 63 and the No. 2 guide column 62, the semi-circular ring 244 is moved away from the milling cutter 34 to release the squeezing support of the milling cutter 34, so that in the non-working state, the semi-circular ring 244 will be away from The milling cutter 34 avoids unnecessary contact and friction; therefore, it can reduce wear and tear, which helps to extend the service life of the milling cutter 34 and the semicircular ring 244. The semicircular ring 244 does not contact the milling cutter 34 in the non-working state, and also provides a good channel for air flow, so that the milling cutter 34 can more effectively dissipate the heat generated during operation. Then, the No. 1 electric slide rail 30 drives the base 31 to move to the next keyway to be processed. During the movement of the base 31, the pressing part 23 is driven to move synchronously through the limit plate 230. After moving into place, the above operation is repeated and the motor shaft continues to perform milling processing.

[0058] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0059] In addition, the terms "first", "second", "number one", "number two" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "number one", "number two" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0060] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0061] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An automated milling processing device for manufacturing a motor shaft, comprising a device frame (10); characterized in that: A base plate (11) is installed on the described equipment rack (10). A milling mechanism (3) for milling the motor shaft from the side is arranged at the rear side of the upper end of the base plate (11), and a fixing mechanism (2) is arranged at the front side of the upper end of the base plate (11); wherein: The described fixing mechanism (2) includes a positioning plate (20). Two positioning plates (20) are symmetrically and slidably installed on the left and right sides of the upper end of the base plate (11). The positioning plate (20) has an inverted T-shaped structure. A drain groove that penetrates the base plate (11) is formed on the base plate (11) between the two positioning plates (20). A bidirectional screw rod (21) is rotatably installed on the front side of the upper end of the base plate (11) through a bearing seat. The two positioning plates (20) are respectively threadedly connected to the two threaded segments of the bidirectional screw rod (21). A first motor (22) is installed on the upper end of the base plate (11), and the first motor (22) is connected to the bidirectional screw rod (21) through a first belt drive; A pressing part (23) for pressing the front side of the motor shaft is arranged on the base plate (11). An auxiliary support component for improving the milling stability is arranged on the milling mechanism (3). A clamping part (25) for limiting and aligning the motor shaft is arranged on the two positioning plates (20); The described milling mechanism (3) includes a first electric slide rail (30). The first electric slide rail (30) is fixed on the upper end of the base plate (11), and a base (31) is slidably installed in the first electric slide rail (30); The described pressing part (23) includes a limiting plate (230). Two limiting plates (230) are symmetrically installed on the left and right sides of the lower end of the base (31) and are located in front of the first electric slide rail (30). A support plate (231) is slidably installed between the two limiting plates (230). A U-shaped plate (232) located in front of the drain groove is installed at the front end of the support plate (231). Sliding plates (233) are slidably installed on the opposite surfaces of the two vertical segments of the U-shaped plate (232). A fixing plate (234) is installed at the rear side between the two sliding plates (233). The fixing plate (234) has a C-shaped structure. A roller shaft (235) is rotatably installed between the two horizontal segments of the fixing plate (234). A side pressing member (4) for laterally pressing the motor shaft is arranged on the U-shaped plate (232). A pushing and pulling member (5) for pushing and pulling the support plate (231) to move is arranged on the base (31).

2. The motor shaft manufacturing automated milling processing equipment according to claim 1, characterized in that: A second electric slide rail is fixed on the upper end of the base (31), and a driving component (32) is slidably installed in the second electric slide rail. The front end of the driving component (32) is drivingly connected with a chuck (33). A milling cutter (34) is installed on the chuck (33). A cooling part (35) is arranged on the driving component (32).

3. The motor shaft manufacturing automated milling processing equipment according to claim 2, characterized in that: The described auxiliary support component is a linear bearing (8). The linear bearing (8) is slidably sleeved on the milling cutter (34), and the linear bearing (8) is fixedly installed on the second electric slide rail through a support seat (9).

4. The motor shaft manufacturing automated milling processing equipment according to claim 1, characterized in that: The auxiliary support assembly is a support part (24) arranged on a support plate (231) for supporting the reinforcement milling cutter (34), the support part (24) comprising a vertical plate (240), the vertical plate (240) being slidably mounted on the support plate (231) in a forward and backward manner, a first compression spring (241) being mounted between the vertical plate (240) and the shaped plate (232), a fixing ring (242) being fixedly mounted on the upper part of the vertical plate (240), and a rear end of the fixing ring (242) Two semicircular rings (244) are symmetrically installed on the side through two groups of No. 2 compression springs (243), and the two semicircular rings (244) are connected and combined into a full circle ring. Balls are evenly rolled and installed on the inner side walls of the semicircular rings (244). The rear ends of the two semicircular rings (244) are installed with abutment rods (245) that contact with the driving assembly (32). A guide (6) is provided on the fixed ring (242) for guiding the two semicircular rings (244) to extrude the milling cutter (34); The guide member (6) comprises a guide plate (60), two guide plates (60) are symmetrically installed at the front end of the semicircular ring (244), a slide groove (61) corresponding to the four guide plates (60) is opened on the fixed ring (242), the guide plate (60) slides through the corresponding slide groove (61), the upper and lower ends of the guide plate (60) are installed with a second guide column (62), and the upper and lower inner side walls of the slide groove (61) are opened with an inclined groove (63) corresponding to the second guide column (62) one by one.

5. The motor shaft manufacturing automated milling processing equipment according to claim 1, characterized in that: The clamping portion (25) comprises a clamping block (250), the vertical sections of the two positioning plates (20) are provided with circumferentially distributed clamping blocks (250), the positioning plates (20) are provided with limiting grooves (251) corresponding to the clamping blocks (250), the clamping blocks (250) are provided with a driving plate (252) sliding through the corresponding limiting grooves (251), the opposite back surfaces of the two positioning plates (20) are rotatably provided with driven gears (253), the driven gears (253) are provided with arc grooves (254) corresponding to the driving plates (252), the driving plates (252) are provided with a No. 1 guide column (255) sliding through the corresponding arc groove (254), and the positioning plates (20) are provided with an actuator (7) for driving the corresponding driven gear (253) to rotate.

6. The motor shaft manufacturing automated milling processing equipment according to claim 1, characterized in that: The side pressure member (4) comprises a toothed plate (40), two vertical sections of the shaped plate (232) are rotatably connected with two rotating shafts symmetrical about the slide plate (233), a torsion spring is arranged between the rotating shaft and the two vertical sections of the shaped plate (232), a spur gear (41) meshing with the corresponding toothed plate (40) is fixedly mounted on the rotating shaft, a support plate (42) is fixedly mounted on the rotating shaft, a support seat (43) is mounted at the other end of the support plate (42), and a pressure roller (44) is rotatably mounted on the support seat (43) for pressing against the motor shaft side.

7. The motor shaft manufacturing automated milling processing equipment according to claim 5, characterized in that: The actuator (7) comprises a stepper motor (70), and the stepper motors (70) are mounted on opposite ends of the two positioning plates (20) via motor seats, and a driving gear (71) for meshing with a driven gear (253) is fixedly mounted on the output shaft of the stepper motor (70).

8. The motor shaft manufacturing automated milling processing equipment according to claim 4, characterized in that: The push-pull member (5) comprises a shaft rod (50), the shaft rod (50) is installed at the rear end of the horizontal section of the U-shaped plate (232), the rear end of the shaft rod (50) slides through the vertical plate (240) and the base (31), the left end of the base (31) is installed with an electric telescopic rod (51), and the rear end of the telescopic section of the electric telescopic rod (51) is installed with a connecting plate (52) fixedly connected to the rear end of the shaft rod (50).

9. The motor shaft manufacturing automated milling processing equipment according to claim 2, characterized in that: The cooling portion (35) comprises an inverted L-shaped plate (350), the upper end of the driving assembly (32) is mounted with the inverted L-shaped plate (350), the lower end of the horizontal section of the inverted L-shaped plate (350) is mounted with a liquid storage box (351), the front end of the liquid storage box (351) is connected to a liquid spray pipe (352), and the rear end of the liquid storage box (351) is connected to a liquid inlet pipe (353).

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