An automated milling equipment for manufacturing motor shafts

Abstract

The present invention relates to the technical field of motor shaft manufacturing, and in particular to an automated milling processing equipment for motor shaft manufacturing; comprising an equipment frame; a base plate is installed on the equipment frame, 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; the fixing mechanism provided in the present invention first fixes and aligns the motor shaft, and then adaptively presses the motor shaft through a pressing portion, and then the milling mechanism mills the motor shaft from the side, and cooperates with cutting fluid to ensure that debris generated during the milling process can be discharged from the keyway to avoid damage to the keyway and the milling cutter, and the pressing portion moves with the milling mechanism during the milling process of 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 process.

Description

Technical Field

[0001] The present 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 manufacturing 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 motor shaft milling processing usually fixes 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 involves the milling cutter performing milling from above, so that the chips generated by milling are easily retained in the keyway and are not easily 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 motor shafts 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 provided on the upper rear side of the base plate, and a fixing mechanism is provided 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 provided 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 respectively threadedly connected to the two threaded sections of the bidirectional screw. 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 by a No. 1 belt transmission.

[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 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 bottom 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 component is slidably installed in the second electric slide rail. The front end of the driving component is传动连接 with a chuck. A milling cutter is installed on the chuck. A cooling part is arranged on the driving component.

[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 installed 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 on 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 part for side pressing the motor shaft is arranged on the U-shaped plate. A pushing and pulling part for pushing and pulling the support plate to move is arranged on the base.

[0011] As a preferred solution, the auxiliary support component 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 component is a support part arranged 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 and combined into a complete circular ring. Ball bearings are evenly installed on the inner side wall of the semi-circular ring. A resisting rod in contact with the driving component is installed at the rear end of each of the two semi-circular rings. A guiding part for guiding the two semi-circular rings to squeeze the milling cutter is arranged on the fixing ring.

[0013] The guiding part 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 slide through the corresponding sliding grooves. Second guiding columns are installed at both the upper and lower ends of the guiding plates. Oblique grooves corresponding to the second guiding columns 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. Clamping blocks distributed circumferentially are arranged on the vertical sections of the two positioning plates. Limiting grooves corresponding to the clamping blocks are opened on the positioning plates. Driving plates that slide 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 guiding columns that slide through the corresponding arc-shaped grooves are installed on the driving plates. An actuating part for driving the corresponding driven gear to rotate is arranged on the positioning plate.

[0015] As a preferred solution, the side pressure member includes a tooth plate, and two tooth plates are symmetrically installed at the upper and lower front ends of the fixed plate. Two rotating shafts symmetrically installed about the upper and lower sides of the slide are rotatably connected between the two vertical sections of the C-shaped 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, and a support is installed at the other end of the support plate. Pressure rollers that press against the side of the motor shaft are rotatably installed on the supports.

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

[0017] As a preferred solution, the push-pull member includes a shaft rod, and the rear end of the horizontal section of the U-shaped plate is equipped with a shaft rod, the rear end of the shaft rod slides through the vertical plate and the base, and the left end of the base is equipped with an electric telescopic rod, 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 solution, 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 pressure 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 push 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 support 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 set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by 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 following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any 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 this application.

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

[0029] Figure 5 for Figure 4 A magnified view of the structure at point B in FIG.

[0030] Figure 6 This is a schematic structural diagram of the clamping portion of this application.

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

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

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

[0034] Figure 10 This is a schematic structural diagram of the guide member of this 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, limiting plate; 231, supporting plate; 232, shaped plate; 233, sliding plate; 234, fixing plate; 235, roller shaft; 4, side pressure member; 40, tooth plate; 41, spur gear; 42, supporting 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. Limiting 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. Liquid spray pipe; 353. Liquid inlet pipe; 8. Linear bearing; 9. Support seat. DETAILED DESCRIPTION

[0036] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to 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 provided on the upper rear side of the base plate 11, and a fixing mechanism 2 is provided 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 provided on the base plate 11, which 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 respectively threadedly connected to the two threaded sections of the bidirectional screw 21. 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 by 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 the 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. 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. The positioning plate 20 will squeeze and fix the motor shaft. Then the other clamping part 25 fixes the other end of the motor shaft to limit its movement. 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 the milling process. Then the milling mechanism 3 moves close to the motor shaft, and then the motor shaft is milled. During the movement, the milling mechanism 3 will cooperate with the support part 24 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 provided with circumferentially distributed clamping blocks 250, and the positioning plates 20 are provided with limiting grooves 251 corresponding to the clamping blocks 250 one by one, and the clamping blocks 250 are installed with driving plates 252 that slide through the corresponding limiting grooves 251, and the opposite back surfaces of the two positioning plates 20 are rotatably installed with driven gears 253, and the driven gears 253 are provided with arc grooves 254 corresponding to the driving plates 252 one by one, and the driving plates 252 are installed with a No. 1 guide column 255 that slides through the corresponding arc groove 254, 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 motor seats. The output shaft of the stepper motor 70 is fixedly mounted with a driving gear 71 for engaging with the driven gear 253 .

[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 30 No. 1, the upper end of the base plate 11 is fixed with an electric slide rail 30 No. 1, a base 31 is slidably installed in the electric slide rail 30, a No. 2 electric slide rail is fixed on the upper end of the base 31, a driving assembly 32 is slidably installed in the No. 2 electric slide rail, the front end of the driving assembly 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 assembly 32.

[0045] like Figure 4 and Figure 5 As shown, the cooling part 35 includes an inverted L-shaped plate 350, the upper end of the driving assembly 32 is installed with the inverted L-shaped plate 350, the lower end of the horizontal section of the inverted L-shaped plate 350 is installed 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.

[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 and the pressure increases, 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 Figure 9 shown, the pressing part 23 includes a limiting plate 230. Two limiting plates 230 are symmetrically installed on the lower left and right sides 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 in the front and back directions. The front end of the support plate 231 is provided with a U-shaped plate 232 located in front 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 side 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 (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 for side pressing 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 profile plate 232, the support plate 231 and the side pressure member 4 to move backward. During the movement of the profile 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 stationary, the profile plate 232 continues to drive the side pressure member 4 to move backward, and the side pressure member 4 moves backward. During the movement, the spur gear 41 will engage 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 further backward, while the roller shaft 235 and the pressure roller 44 maintain the pressure on the motor shaft and move with the milling cutter 34, so as to improve the stability of the motor shaft during milling, reduce its vibration, and thus improve 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 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 press and support the motor shaft.

[0052] like Figure 1 and Figure 2 As shown, the auxiliary support component is a linear bearing 8, which is slidably sleeved on the milling cutter 34, and the linear bearing 8 is fixedly mounted on the No. 2 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 circulation 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 position of the linear bearing 8 is fixed, 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. 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 point and support force of the milling cutter 34 will also change, 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 Figure 9 As shown, the auxiliary support assembly can also be a support part 24 arranged on the support plate 231 for supporting the reinforced milling cutter 34, and the support part 24 includes a vertical plate 240, and the vertical plate 240 is installed on the support plate 231 for sliding back and forth, and the shaft rod 50 slides through the vertical plate 240, and 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 with balls. The rear ends of the two semicircular rings 244 are both installed with a push rod 245 that contacts the drive assembly 32, and a guide 6 is provided on the fixing ring 242 for guiding the two semicircular rings 244 to extrude the milling cutter 34.

[0055] like Figure 9 and Figure 10 As shown, the guide member 6 includes a guide plate 60, and two guide plates 60 are symmetrically installed on the front end of the semicircular ring 244. A sliding groove 61 corresponding to the four guide plates 60 is opened on the fixed ring 242. The guide plate 60 slides through the corresponding sliding groove 61. The upper and lower ends of the guide plate 60 are installed with a No. 2 guide column 62, and the upper and lower inner walls of the sliding groove 61 are provided with an inclined groove 63 corresponding to the No. 2 guide column 62.

[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 conflicts with the milling cutter 34 through the ball bearings and cannot move further, 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 semi-circular 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 semi-circular ring 244 can maintain support for the milling cutter 34; because the semi-circular 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 semi-circular ring 244 on the milling cutter 34 remains unchanged, so that the force conditions of the milling cutter 34 are 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 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 push 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. 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 on the milling cutter 34, so that in the non-working state, the semi-circular ring 244 will be away from the milling cutter 34. 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. After that, the No. 1 electric slide 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 should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying 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 device or element 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 outline of each component itself.

[0059] Furthermore, the terms "first," "second," "number one," and "number two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature designated as "first," "second," "number one," or "number two" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0060] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "connected," "installed," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on 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 scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automated milling processing equipment for manufacturing motor shafts, comprising an equipment frame; characterized in that: A base plate is installed on the equipment rack. A milling mechanism for milling the motor shaft from the side is arranged at the rear side of the upper end of the base plate, and a fixing mechanism is arranged at the front side of the upper end of the base plate. Among them: The fixing mechanism includes a positioning plate. Two positioning plates are symmetrically and slidably installed on the left and right sides of the upper end of the base plate. The positioning plate has an inverted T-shaped structure. A drainage groove that penetrates the base plate is formed on the base plate between the two positioning plates. A bidirectional screw rod is rotatably installed on the front side of the upper end of the base plate through a bearing seat. The two positioning plates are respectively threadedly connected to the two threaded segments of the bidirectional screw rod. A first motor is installed on the upper end of the base plate, and the first motor is传动连接 to the bidirectional screw rod through a first belt. A pressing part for pressing the front side of the motor shaft is arranged on the base plate. An auxiliary support component for improving the milling stability is arranged on the milling mechanism. A clamping part for limiting and aligning the motor shaft is arranged on the two positioning plates. The milling mechanism includes a first electric slide rail. The first electric slide rail is fixed on the upper end of the base plate. A base is slidably installed in the first electric slide rail, and a second electric slide rail is fixed on the upper end of the base. The pressing part includes a limiting plate. Two limiting plates are symmetrically installed on the left and right sides of the lower end of the base and are located in front of the first electric slide rail. A support plate is slidably installed back and forth between the two limiting plates. The front end of the support plate is installed 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 segments of the U-shaped plate. A fixing plate is installed at the rear side between the two sliding plates. The fixing plate has a C-shaped structure. A roller shaft is rotatably installed between the two horizontal segments of the fixing plate. A side pressing part for laterally pressing the motor shaft is arranged on the U-shaped plate. A pushing and pulling part for pushing and pulling the support plate to move is arranged on the base. The auxiliary support component 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.

2. The motor shaft manufacturing automated milling processing equipment according to claim 1, characterized in that: A driving component is slidably installed in the second electric slide rail. The front end of the driving component is传动连接 to a chuck. A milling cutter is installed on the chuck. A cooling part is arranged on the driving component.

3. The motor shaft manufacturing automated milling processing equipment according to claim 1, characterized in that: The auxiliary support component is a support part arranged 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 and combined into a complete ring. Ball bearings are evenly installed on the inner side wall of the semi-circular ring. Push rods that抵触 the driving component are installed at the rear ends of the two semi-circular rings. A guiding part for guiding the two semi-circular rings to squeeze the milling cutter is arranged on the fixing ring. The guiding part 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 one by one are formed on the fixing ring. The guiding plate slidably penetrates the corresponding sliding groove. Second guide posts are installed at the upper and lower ends of the guiding plate. Oblique grooves corresponding to the second guide posts one by one are formed on the upper and lower inner side walls of the sliding groove.

4. The motor shaft manufacturing automated milling processing equipment according to claim 1, characterized in that: The clamping part includes clamping blocks. The vertical sections of the two positioning plates are both provided with circumferentially distributed clamping blocks. The positioning plates are provided with limiting grooves corresponding to the clamping blocks one by one. The clamping blocks are installed with drive plates that slide through the corresponding limiting grooves. The opposite sides of the two positioning plates are both rotatably installed with driven gears. The driven gears are provided with arc-shaped grooves corresponding to the drive plates one by one. The drive plates are installed with first guide posts that slide through the corresponding arc-shaped grooves. The positioning plates are provided with actuators for driving the corresponding driven gears to rotate.

5. The motor shaft manufacturing automated milling processing equipment according to claim 1, characterized in that: The side pressing part includes a toothed plate. Between the two vertical sections of the U-shaped plate (), two rotating shafts that are symmetrically arranged up and down with respect to the sliding plate () are rotatably connected. A torsion spring is arranged between the rotating shafts and the two vertical sections of the U-shaped plate (). The rotating shafts are fixedly installed with spur gears that mesh with the corresponding toothed plates. The rotating shafts are fixedly installed with support plates. The other ends of the support plates are installed with supports. The supports are both rotatably installed with pressure rollers that are laterally pressed against the motor shaft.

6. The motor shaft manufacturing automated milling processing equipment according to claim 4, characterized in that: The actuator includes a stepper motor. The opposite ends of the two positioning plates are both installed with stepper motors through motor seats. The output shafts of the stepper motors are fixedly installed with driving gears for meshing with the driven gears.

7. The motor shaft manufacturing automated milling processing equipment according to claim 3, characterized in that: The pushing and pulling part includes a shaft rod. The rear end of the horizontal section of the U-shaped plate is installed with a shaft rod. The rear end of the shaft rod slides through the vertical plate and the base. The left end of the base is installed with an electric telescopic rod. The rear end of the telescopic section of the electric telescopic rod is installed with a connecting plate fixedly connected to the rear end of the shaft rod.

8. The motor shaft manufacturing automated milling processing equipment according to claim 2, characterized in that: The cooling part includes an inverted L-shaped plate. The upper end of the driving assembly is installed with an inverted L-shaped plate. The lower end of the horizontal section of the inverted L-shaped plate is installed with a liquid storage box. The front end of the liquid storage box is communicated with a liquid spraying pipe. The rear end of the liquid storage box is communicated with a liquid inlet pipe.

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