CN111408896A

CN111408896A - Knurling device for motor shaft

Info

Publication number: CN111408896A
Application number: CN202010349915.9A
Authority: CN
Inventors: 徐刚强; 周康康; 胡火明; 王莉; 张新娜; 周望平; 曹毅; 吴加韦; 阚李近; 黄吉祥; 王庆松; 何飞; 叶明清; 王勇; 张卸伟
Original assignee: Zhejiang Boxing Industry And Trade Co ltd
Current assignee: Zhejiang Boxing Industry And Trade Co ltd
Priority date: 2020-04-28
Filing date: 2020-04-28
Publication date: 2020-07-14

Abstract

The invention belongs to the technical field of motor shaft production equipment, and relates to a motor shaft knurling device, which comprises a first base frame, wherein a first knurling seat and a second knurling seat are oppositely arranged on the first base frame, knurling shafts are respectively arranged on the first knurling seat and the second knurling seat, knurling knives are respectively arranged on the knurling shafts, a motor linear rail is arranged on the first knurling seat, a clamping mechanism for fixing a motor shaft is arranged on the motor linear rail, a fitting shaft is arranged on the second knurling seat, two taking arms are fixedly arranged on the fitting shaft, a case is arranged on the first base frame, a first stepping motor and a second stepping motor are arranged in the case, the first stepping motor is in transmission connection with the knurling shafts, the second stepping motor is in transmission connection with the fitting shaft, a feeding mechanism and a taking mechanism are arranged below the first base frame, and are used for solving the problem that when knurling is carried out on the motor shaft at present, the workpiece is loaded and unloaded by manpower, so that the labor cost is high, the working efficiency is low, and the labor intensity of workers is high.

Description

Knurling device for motor shaft

Technical Field

The invention belongs to the technical field of motor shaft production equipment, and particularly relates to a motor shaft knurling device.

Background

An electric machine (commonly called "motor") refers to an electromagnetic device for converting or transmitting electric energy according to the law of electromagnetic induction, and a motor shaft is an important part, and the performance of the motor shaft directly affects the performance of the whole electric machine and is a main driving part in modern industrial systems. The high-torque shaft can bear larger load capacity, the high-torque shaft is in inverse proportion to the rotating speed of the motor under the condition of fixed power, the faster the rotating speed of the motor is, the smaller the torque is, the slower the rotating speed of the motor is, the larger the torque is, the load capacity of the motor in a certain range is reflected, the common shaft body is cylindrical in design, the outer peripheral surface of the common shaft body is provided with more smooth surfaces to reduce abrasion, but when the high-torque shaft bears larger load, the friction of the smooth surfaces is smaller, and the common shaft body is easy to slip, so that the. For solving above-mentioned problem, many motor shaft surfaces carry out the annular knurl processing when the processing production of motor shaft, at present, when carrying out annular knurl processing to the motor shaft, because the structural constraint of annular knurl equipment, load and get a piece through manpower more, lead to the human cost high, work efficiency is low, and workman intensity of labour is great simultaneously.

Disclosure of Invention

In view of the problems mentioned in the background, the object of the invention is: the motor shaft knurling device is used for solving the problems that when knurling is conducted on a motor shaft at present, due to the structural limitation of knurling equipment, a workpiece is assembled and taken through manpower, the labor cost is high, the working efficiency is low, and the labor intensity of workers is high.

In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:

the utility model provides a motor shaft annular knurl device, includes control center and annular knurl machine, the annular knurl machine includes first bed frame, install first annular knurl seat and second annular knurl seat relatively on the first bed frame, all install the knurling axle on first annular knurl seat and the second annular knurl seat, all install the knurling sword on the knurling axle, install motor straight line rail on the first annular knurl seat, install the fixture that is used for fixed motor shaft on the motor straight line rail, install the dress spare axle on the second annular knurl seat, dress epaxial fixed mounting has two and gets an arm, shifts the motor shaft through two and get a arm, can avoid the motor shaft skew to appear in the transfer process, the tip of getting an arm installs first jack catch, the quick-witted case of installing on the first bed frame, install first step motor and second step motor in the quick-witted case, first step motor drives the knurling axle transmission and is connected, drives the knurling axle through first step motor drive to drive the knurling sword and rotate to drive the knurling sword rotation, thereby drive the motor straight line control mechanism of feeding motor and the control mechanism, the feeding mechanism of the second feeding mechanism and the control of the feeding mechanism, the feeding mechanism and the control mechanism, the feeding mechanism, feeding mechanism of the feeding mechanism and feeding mechanism of the second feeding mechanism, feeding mechanism of the control that the motor straight line control mechanism, feeding mechanism of the feeding mechanism, feeding mechanism of the motor straight line control mechanism, feeding mechanism of the motor straight line control.

In the technical scheme, the invention is further improved as follows:

further, the motor linear rail comprises a slide rail, a sliding table, a screw rod and a third step motor, the screw rod is installed on the slide rail, the sliding table is installed in the slide rail in a sliding mode, the sliding table is sleeved on the screw rod and is in threaded connection with the screw rod, the screw rod is in transmission connection with the third step motor, the clamping mechanism comprises a U-shaped clamping frame, the U-shaped clamping frame is installed on the sliding table, air cylinders are installed at two ends of the U-shaped clamping frame, and top cones are installed on air cylinder shafts of the air cylinders. The cylinder drives the tip cone to move, so that the motor shaft can be axially fixed, and the motor shaft can be rotated by fixing the two ends of the motor shaft of the tip cone top column simultaneously, so that knurling can be performed by a better matched knurling tool.

Further, the outside cover of cylinder is equipped with the safety cover. The cylinder can be protected by the protective cover.

Furthermore, the middle part of the piece taking arm is of an arc structure corresponding to the knurling shaft. Due to the structural design, the collision of the part taking arm with the knurling shaft in the rotating process can be avoided.

Further, feeding mechanism includes the second bed frame, install fourth step motor on the second bed frame, install first roller and second roller on the second bed frame, the rich is equipped with two first conveyer belts on first roller and the second roller, the one end of second bed frame is installed two relative settings and is waited the work or material rest, and is even wait to install the third roller between the work or material rest, around being equipped with two feeding zones, two between second roller and the third roller the feeding zone is located between two first conveyer belts, the equidistant fixed mounting of surface on the feeding zone has a plurality of material supporting trips, it has the support to wait that the work or material rest is gone up the mounting bracket, install infrared inductor on the support, fourth step motor and infrared inductor all are connected with control center. The motor shaft to be processed is conveyed to one end of the feeding belt through the first conveying belt, the motor shaft is conveyed upwards along the feeding belt through the material supporting clamping hook when the feeding belt moves, the workpiece in-place detection can be carried out through the infrared sensor, and when the motor shaft moves to the position of the infrared sensor, the control center controls the fourth stepping motor to stop to operate to wait for the workpiece taking arm to take the workpiece.

Further, the guide plates are mounted on two sides of the second base frame. The position of the motor shaft can be adjusted through the limit of the guide plate, so that the motor shaft can be better matched with the clamping mechanism.

Further, the material taking mechanism comprises a third base frame, a fifth stepping motor and two fourth roller shafts are installed on the third base frame, the fifth stepping motor is in transmission connection with any one of the fourth roller shafts, the fifth stepping motor is in transmission connection with two second conveying belts around the fourth roller shafts, a connecting frame is installed on the third base frame, a sleeve is fixedly installed on the connecting frame, a lifting rod penetrates through the sleeve, a second clamping jaw is installed at the top end of the lifting rod, a notch is axially formed in the circumference of the lifting rod, transmission teeth are formed in the notch of the lifting rod, a sixth stepping motor is installed on the third base frame, a transmission gear is installed on an output shaft of the sixth stepping motor, the transmission gear is meshed with the transmission teeth on the lifting rod, and the fifth stepping motor and the sixth stepping motor are both connected with the control center. The fifth stepping motor drives the second conveying belt to move, the sixth stepping motor can drive the lifting rod to move so as to drive the second clamping jaw to lift and take the motor shaft with the knurled finish, when the second clamping jaw completely descends on the lower portion of the second conveying belt, the taken motor shaft automatically falls on the second conveying belt, and the second conveying belt turns away the machined workpiece.

Furthermore, the second conveyor belt is uniformly provided with grooves. When the second conveyer belt moves, a motor shaft on the second conveyer belt can automatically roll into the groove, so that the motor shaft is prevented from continuously rolling on the second conveyer belt.

The invention has the beneficial effects that:

1. can carry the motor shaft that needs annular knurl to handle through feeding mechanism, the second step motor drives a dress axle and rotates and can shift the motor shaft of treating processing on the feeding mechanism to between two knurling cutters, can accomplish the fixed to the work piece through fixture, because fixture installs on motor linear rail, drive fixture and motor shaft work piece through motor linear rail and remove and can accomplish the annular knurl to the motor shaft, the motor shaft work piece of accomplishing is processed to last removable through taking mechanism, the operating duration of the drive part of each part through control center control, the automatic annular knurl processing of motor shaft can be accomplished to operation order and working gap time, be favorable to practicing thrift the human cost, and the production efficiency is improved, and the work burden of staff is lightened.

Drawings

The invention is further illustrated by the non-limiting examples given in the accompanying drawings;

FIG. 1 is a schematic structural view of a knurling device for a motor shaft according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a knurling machine in an embodiment of a knurling device for a motor shaft of the present invention;

FIG. 3 is a schematic structural diagram of a linear rail and a clamping mechanism of a motor according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a feeding mechanism in an embodiment of the present invention;

FIG. 5 is a schematic longitudinal sectional view of the feeding mechanism according to the embodiment of the present invention;

FIG. 6 is a schematic view of a material extracting mechanism according to an embodiment of the present invention;

FIG. 7 is a schematic view of the pick arm in an embodiment of the present invention in a configuration for picking a pick from a feeding belt;

FIG. 8 is a first schematic view illustrating a first structural state of the clamping mechanism during clamping according to the embodiment of the present invention;

FIG. 9 is a second schematic view of the clamping mechanism in the embodiment of the present invention;

FIG. 10 is a schematic view of the pickup mechanism according to the embodiment of the present invention;

FIG. 11 is a schematic structural view of the pickup mechanism according to the embodiment of the present invention after the pickup is completed;

the main element symbols are as follows:

the device comprises a first base frame 11, a first knurling base 12, a second knurling base 13, a knurling shaft 14, a loading shaft 16, a workpiece taking arm 17, a first claw 172, a case 18, a clamping mechanism 2, a sliding rail 21, a sliding table 23, a screw rod 25, a third stepping motor 26, a U-shaped clamping frame 27, a cylinder 281, a protective cover 282, a feeding mechanism 3, a second base frame 31, a first roller shaft 321, a second roller shaft 322, a third roller shaft 323, a feeding belt 34, a support 351, an infrared inductor 35, a guide plate 37, a four stepping motor 38, a workpiece waiting frame 39, a material taking mechanism 4, a third base frame 41, a fourth roller shaft 42, a second conveying belt 43, a connecting frame 44, a sleeve 45, a lifting rod 46, a transmission gear 461, a sixth stepping motor 47, a transmission gear 471 and a motor shaft 5.

Detailed Description

In order that those skilled in the art can better understand the present invention, the following technical solutions are further described with reference to the accompanying drawings and examples.

Examples

As shown in fig. 1-2, a knurling device for a motor shaft comprises a control center and a knurling machine, the knurling machine comprises a first base frame 11, a first knurling base 12 and a second knurling base 13 are oppositely arranged on the first base frame 11, knurling shafts 14 are respectively arranged on the first knurling base 12 and the second knurling base 13, knurling cutters 15 are arranged on the knurling shafts 14, a motor linear rail is arranged on the first knurling base 12, a clamping mechanism 2 for fixing the motor shaft 5 is arranged on the motor linear rail, an assembly member shaft 16 is arranged on the second knurling base 13, two assembly taking arms 17 are fixedly arranged on the assembly member shaft 16, the motor shaft 5 is transferred through the two assembly taking arms 17, so that the deflection of the motor shaft 5 in the transferring process can be avoided, a first clamping jaw 172 is arranged at the end of the assembly taking arm 17, a case 18 is arranged on the first base frame 11, a first step feeding motor and a second step feeding motor are arranged in the case 18, the first step feeding motor is in transmission connection with the knurling shafts 14, the first step feeding motor shaft 14 is driven to rotate by a first step feeding motor driving the first step feeding motor shaft 14, thereby driving the rolling cutters 15 to rotate, the second knurling cutter 15, the second step feeding motor feeding mechanism is connected with the motor shaft feeding mechanism, the feeding mechanism is controlled by a step feeding mechanism, the motor feeding mechanism, the core feeding mechanism, the feeding mechanism is controlled by a step feeding mechanism, the feeding mechanism is controlled by a step feeding mechanism, the step feeding mechanism.

Specifically, as shown in fig. 3 and 10, the motor linear rail includes a slide rail 21, a sliding table 23, a screw rod 25 and a third step motor 26, the screw rod 25 is installed on the slide rail 21, the sliding table 23 is installed in the slide rail 1 in a sliding manner, the sliding table 23 is sleeved on the screw rod 25 and is in threaded connection with the screw rod 25, and the screw rod 25 is in transmission connection with the third step motor 26. The clamping mechanism 2 comprises a U-shaped clamping frame 27, the U-shaped clamping frame 27 is installed on the sliding table 23, air cylinders 281 are installed at two ends of the U-shaped clamping frame 27, and tip cones 29 are installed on air cylinder shafts of the air cylinders 281. Drive the apical cone 29 through the cylinder 281 and remove, can carry out axial fixity to motor shaft 5, fix through the both ends of the apical cone 29 apical post motor shaft 5 simultaneously and still make motor shaft 5 rotatable to cooperation knurling sword 15 that can be better carries out the annular knurl, and wherein, the outside cover of cylinder 281 is equipped with safety cover 282, can protect cylinder 281 through safety cover 282.

Specifically, as shown in fig. 7, the middle of the pick arm 17 is of an arc-shaped configuration corresponding to the knurling shaft 14. Due to the structural design, the part taking arm 17 can be prevented from colliding with the knurling shaft 14 in the rotating process.

Specifically, as shown in fig. 4 and 5, the feeding mechanism 3 includes a second base frame 31 and a first conveyor belt 33, a fourth stepping motor 38 is installed on the second base frame 31, a first roller 321 and a second roller 322 are installed on the second base frame 31, two first conveyor belts 33 are wound on the first roller 321 and the second roller 322, two opposite material waiting frames 39 are installed at one end of the second base frame 31, a third roller 323 is installed between the two material waiting frames 39, two feed belts 34 are wound between the second roller 322 and the third roller 323, the two feed belts 34 are located between the two first conveyor belts 33, a plurality of material supporting hooks 341 are fixedly installed on the outer surface of the feed belts 34 at equal intervals, a support 351 is installed on the material waiting frames 39, an infrared inductor 35 is installed on the support 351, and the fourth stepping motor 38 and the infrared inductor 35 are both connected to the control center. Motor shaft 5 that will treat processing is carried to feed zone 34 one end through first conveyer belt 33, feed zone 34 moves the time through holding in the palm material trip 341 with motor shaft 5 along feed zone 34 upwards transport, can carry out the work piece through infrared inductor 35 and detect that targets in place, when motor shaft 5 removed to infrared inductor 35 position, control center control fourth step motor 38 stall waiting to get an arm 17 and get a piece, wherein, deflector 37 is all installed to the both sides of second bed frame 31, spacing through deflector 37 can be adjusted motor shaft 5 position, make the better cooperation fixture 2 of motor shaft 5 ability.

Specifically, as shown in fig. 6, the material taking mechanism 4 includes a third base frame 41, a fifth stepping motor 49 and two fourth roller shafts 42 are mounted on the third base frame 41, the fifth stepping motor 49 is connected with any one of the fourth roller shafts 42 in a transmission manner, two second conveyor belts 43 are wound on the two fourth roller shafts 42, a connecting frame 44 is mounted on the third base frame 41, a sleeve 45 is fixedly mounted on the connecting frame 44, a lifting rod 46 penetrates through the sleeve 45, a second claw 48 is mounted at the top end of the lifting rod 46, a gap is axially formed on the circumference of the lifting rod 46, a transmission tooth 461 is formed in the gap of the lifting rod 46, a sixth stepping motor 47 is mounted on the third base frame 41, a transmission gear 471 is mounted on an output shaft of the sixth stepping motor 47, the transmission gear is engaged with the transmission tooth 461 on the lifting rod 46, both the fifth stepping motor 49 and the sixth stepping motor 47 are connected with a control center, the second conveyor belt 43 is uniformly provided with grooves 431. Drive the second conveyer belt 43 through fifth step motor 49 and remove, thereby sixth step motor 47 can drive lifter 46 and remove and thereby drive second jack catch 48 and go up and down to get the piece to motor shaft 5 that the annular knurl was accomplished, when second jack catch 48 descends in second conveyer belt 43 lower part completely, motor shaft 5 that takes off is from walking on second conveyer belt 43, the work piece of processing completion is walked away by second conveyer belt 43, when the design of recess 431 can make second conveyer belt 43 remove, motor shaft 5 on the second conveyer belt 43 can roll into in the recess 431 by oneself, avoid motor shaft 5 to last the rolling on second conveyer belt 43.

When the motor shaft processing device is used, the motor shaft 5 to be processed is placed on the first conveying belt 33, the fourth stepping motor 38 drives the first roller shaft 321 to rotate under the control of the control center to drive the first conveying belt 33 to move, and the second rotating shaft 322 synchronously rotates under the transmission action of the first conveying belt 33 and drives the feeding belt 34 to rotate. When the motor shaft on the first conveyor belt 33 moves to the position of the feed belt 34, because the feed belt 34 is obliquely arranged, the motor shaft 5 cannot move continuously, while the feed belt 34 can lift the motor shaft 5 at the end part to move along the feed belt 34 through the material supporting clamping hook 341 when rotating, when the motor shaft 5 moves to the position of the infrared sensor 35 (as shown in fig. 4), the infrared sensor 35 feeds back a workpiece in-place signal to the control center, the control center controls the fourth stepping motor 38 to stop working, and simultaneously controls the second stepping motor to work to drive the part mounting shaft 16 to rotate to drive the part taking arm 17 to rotate for a fixed angle, the first clamping jaw 172 of the part taking arm 17 takes the motor shaft 5 at the position of the infrared sensor 35 from the feed belt 34 (as shown in fig. 7), after the rotation of the part taking arm 17 is finished, the motor shaft 5 on the first clamping jaw 172 is positioned between the two air cylinders 281, and the control center air cylinder 281 starts to clamp the motor shaft 5 through, As shown in fig. 9), and the pick arm 17 returns to wait for the next pick. After the motor shaft 5 is clamped by the air cylinder 281, the control center controls the third stepping motor 26 and the first stepping motor to start, the third stepping motor 26 drives the screw rod 25 to rotate to drive the sliding table 23 to move for a preset distance, and the sliding table 23 moves to drive the U-shaped clamping frame 27 and the fixed motor shaft 5 to synchronously move to finish knurling. After knurling is finished, the sliding table 23 drives the U-shaped clamping frame 27 and the fixed motor shaft 5 to move above the material taking mechanism 4, at this time, the control center controls the fifth stepping motor 49 and the sixth stepping motor 47 to work, the fifth stepping motor 49 drives the second conveying belt 43 to move, and the sixth stepping motor 47 drives the lifting rod 46 to ascend by a preset height, so that the second clamping jaw 48 clamps the motor shaft 5 (as shown in fig. 10); then, the sixth stepping motor 47 rotates to drive the lifting rod 46 to descend, so that the second clamping jaw 48 descends by a preset height, at this time, the second clamping jaw 48 is located at the lower part of the second conveying belt 43, the motor shaft 5 on the second clamping jaw 48 falls on the second conveying belt 43, and the fourth stepping motor 38 is started again after single knurling, and the next knurling is performed according to the steps.

The knurling device for the motor shaft provided by the invention is described in detail above. The description of the specific embodiments is only intended to facilitate an understanding of the method of the invention and its core ideas. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. The utility model provides a motor shaft knurling device, includes control center and knurling machine, its characterized in that: the knurling machine comprises a first base frame (11), wherein a first knurling seat (12) and a second knurling seat (13) are relatively installed on the first base frame (11), knurling shafts (14) are installed on the first knurling seat (12) and the second knurling seat (13), knurling cutters (15) are installed on the knurling shafts (14), a motor linear rail is installed on the first knurling seat (12), a clamping mechanism (2) used for fixing a motor shaft (5) is installed on the motor linear rail, a mounting shaft (16) is installed on the second knurling seat (13), two workpiece taking arms (17) are fixedly installed on the mounting shaft (16), a first clamping jaw (172) is installed at the end part of each workpiece taking arm (17), a machine case (18) is installed on the first base frame (11), and a first stepping motor and a second stepping motor are installed in the machine case (18), the first stepping motor is in transmission connection with the knurling shaft (14), the second stepping motor is in transmission connection with the fitting shaft (16), the feeding mechanism (3) and the material taking mechanism (4) are installed below the first base frame (11), and the motor linear rail, the clamping mechanism (2), the first stepping motor, the second stepping motor, the feeding mechanism (3) and the material taking mechanism (4) are all in control connection with the control center.

2. The knurling device of a motor shaft of claim 1, wherein: the motor linear rail comprises a sliding rail (21), a sliding table (23), a screw rod (25) and a third step motor (26), the screw rod (25) is installed on the sliding rail (21), the sliding table (23) is installed in the sliding rail (1) in a sliding mode, the sliding table (23) is sleeved on the screw rod (25) and is in threaded connection with the screw rod (25), the screw rod (25) is in transmission connection with the third step motor (26), the clamping mechanism (2) comprises a U-shaped clamping frame (27), the U-shaped clamping frame (27) is installed on the sliding table (23), air cylinders (281) are installed at two ends of the U-shaped clamping frame (27), and top cones (29) are installed on air cylinder shafts of the air cylinders (281).

3. The knurling device of a motor shaft of claim 2, wherein: the outer cover of the air cylinder (281) is provided with a protective cover (282).

4. The knurling device of a motor shaft of claim 1, wherein: the middle part of the piece taking arm (17) is of an arc structure corresponding to the knurling shaft (14).

5. The knurling device of a motor shaft of claim 1, wherein: the feeding mechanism (3) comprises a second base frame (31), a fourth stepping motor (38) is installed on the second base frame (31), a first roller shaft (321) and a second roller shaft (322) are installed on the second base frame (31), two first conveying belts (33) are wound on the first roller shaft (321) and the second roller shaft (322), two material waiting frames (39) which are oppositely arranged are installed at one end of the second base frame (31), a third roller shaft (323) is installed between every two material waiting frames (39), two feeding belts (34) are wound between the second roller shaft (322) and the third roller shaft (323), the two feeding belts (34) are located between the two first conveying belts (33), a plurality of material supporting clamping hooks (341) are fixedly installed on the outer surfaces of the feeding belts (34) at equal intervals, a support (351) is installed on the material waiting frames (39), install infrared inductor (35) on support (351), fourth step motor (38) and infrared inductor (35) all are connected with control center.

6. The knurling device of a motor shaft of claim 5, wherein: and guide plates (37) are arranged on two sides of the second base frame (31).

7. The knurling device of a motor shaft of claim 1, wherein: the material taking mechanism (4) comprises a third base frame (41), a fifth stepping motor (49) and two fourth roller shafts (42) are installed on the third base frame (41), the fifth stepping motor (49) is in transmission connection with any one of the fourth roller shafts (42), two second conveying belts (43) are wound on the two fourth roller shafts (42), a connecting frame (44) is installed on the third base frame (41), a sleeve (45) is fixedly installed on the connecting frame (44), a lifting rod (46) penetrates through the sleeve (45), a second claw (48) is installed at the top end of the lifting rod (46), a notch is axially formed in the circumference of the lifting rod (46), a transmission tooth (461) is formed in the notch of the lifting rod (46), a sixth stepping motor (47) is installed on the third base frame (41), and a transmission gear (471) is installed on an output shaft of the sixth stepping motor (47), the transmission gear (471) is meshed with transmission teeth (461) on the lifting rod (46), and the fifth stepping motor (49) and the sixth stepping motor (47) are both connected with the control center.

8. The knurling device of a motor shaft of claim 7, wherein: the second conveying belt (43) is uniformly provided with grooves (431).