Numerical control notching winding machine controlled by four servo motors

Abstract

The utility model discloses a numerical control notching winding machine controlled by four servo motors, which comprises a base, an X-direction linear motion platform driven by a first feeding servo motor is mounted at the top of the base, a stand column is fixed on the X-direction linear motion platform, and a winding box capable of sliding in a Z direction is arranged on the side surface of the stand column. A second feeding servo motor for driving the winding box to slide is mounted at the top of the stand column, a winding wheel is rotationally mounted on the winding box, and a winding servo motor for driving the winding wheel is mounted in the winding box; a stamping supporting frame is further installed on the side, located in the X direction, of the top of the base, and a stamping die and a punch which is driven by a stamping servo motor and can move in the Z direction are installed in the stamping supporting frame.

Description

Technical Field

[0001] This utility model relates to the field of slotting and winding machines, specifically a CNC slotting and winding machine controlled by four servo motors. Background Technology

[0002] When machining the iron core of a disc motor, the iron core strip needs to be wound into a disc, and grooves need to be punched into the strip. There are two existing technologies: one is to first wind it into a disc and then cut the grooves using metal cutting; the other is to punch the grooves and then wind it, with the wound iron core sliding along a fixed track. Both of these methods have corresponding problems: the coolant used in metal cutting can seep into the gaps in the strip, which is difficult and troublesome to remove; and the sliding of the iron core along the fixed track can scratch the paint film on the surface of the strip. Utility Model Content

[0003] This invention provides a CNC punching and winding machine controlled by four servo motors, which does not require coolant and the material does not come into contact with any friction surface during the winding process, thus solving the problem of paint film scratches in the prior art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A CNC punching and winding machine controlled by four servo motors includes a base. A first feed servo motor drives an X-axis linear motion platform on the top of the base. A column is fixed on the X-axis linear motion platform, and a winding box is mounted on the side of the column. The winding box can slide along the Z-axis on the corresponding side of the column. A second feed servo motor is mounted on the top of the column to drive the winding box to slide in the Z-axis. A winding wheel with an axial direction in the Y-axis is rotatably mounted on the winding box. A winding servo motor that drives the winding wheel to rotate is installed inside the winding box. A stamping support frame is also mounted on the top of the base on the X-axis side of the winding wheel. A punch and a punch driven by a stamping servo motor that can move in the Z-axis are installed in the stamping support frame. The material to be punched is horizontally passed from the top surface of the punch, punched by the punch to form a groove, and then wound onto the winding wheel.

[0006] Furthermore, the X-axis linear motion platform is a lead screw slide mechanism. The first feed servo motor drives the lead screw in the lead screw slide mechanism to rotate so that the slide moves along the X-axis. The column is fixed on the slide of the lead screw slide mechanism.

[0007] Furthermore, the second feed servo motor drives the winding box to slide along the Z-direction on the linear guide rail installed on the corresponding side of the column through a reducer-connected lead screw and nut mechanism.

[0008] Furthermore, a crank-connecting rod mechanism is rotatably mounted in the stamping support frame, and a slider is slidably mounted in the stamping support frame below the crank-connecting rod mechanism along the Z direction. The slider is suspended above the die. The connecting rod in the crank-connecting rod mechanism is connected to the slider. The punch is fixed at the bottom of the slider. The stamping servo motor is connected to the crankshaft in the crank-connecting rod mechanism.

[0009] In this invention, a stamping servo motor drives a crank-connecting rod mechanism to move, thereby causing the punch to move in the Z direction. The strip material to be slotted passes horizontally from the top surface of the die. The punch moves downward in the Z direction to slot the strip material. The slotted strip material finally moves along the X direction to the winding wheel and is wound on the winding wheel.

[0010] In this invention, the winding wheel is indexed according to a predetermined angle of 2π / Z (Z is the number of slots on the iron core).

[0011] In this invention, after the winding wheel has rotated a full revolution, the second feed servo motor drives the winding box to move downward along the Z direction. This ensures that after the winding wheel winds the strip to form an outer ring of a certain thickness, the strip moving to the top surface of the die can remain horizontal.

[0012] In this invention, the first feed servo motor drives the column and winding box to move horizontally along the X-direction in each slot according to the design, thereby compensating for the straightness requirement of the slot shape. Because the material winding is a constant feed spiral (Archimedean spiral), the radius of any two slots is different, and the radius difference between two adjacent slots is σ / Z, so the arc lengths after two adjacent slots also differ by (2πσ / Z^2).

[0013] Compared with the prior art, the advantages of this utility model are:

[0014] 1. Based on the principle of the equal-progression spiral (Archimedes spiral), the mathematical model is simple and easy to implement and control.

[0015] 2. It can effectively avoid the impact of existing technologies on the iron core.

[0016] 3. The range of iron core processing is wide, and product changes are convenient. It is very suitable for multi-variety production and new product development. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] like Figure 1As shown, this embodiment discloses a CNC punching and winding machine controlled by four servo motors, including a base 1. A boss protruding upwards is formed on the left side of the top of the base 1 in the X direction, and a stamping support frame 2 is fixed to the top of the boss. An X-axis linear motion platform 3 is installed on the top of the base 1 to the right of the boss. The X-axis linear motion platform 3 is a screw-slide mechanism, which includes a screw rotatably mounted on the base 1 with its axial direction horizontal in the X direction, and a slide 4 slidably mounted on the base 1 in the X direction and screwed onto the screw. A first feed servo motor 5 is fixed on the base 1 to the right of the X-axis linear motion platform 3, and the output shaft of the first feed servo motor 5 is connected to the right end of the screw in the screw-slide mechanism in the X direction. The first feed servo motor 5 drives the screw in the screw-slide mechanism to rotate, thereby causing the slide in the screw-slide mechanism to move along the X direction on the base.

[0020] A column 6 is fixedly connected to the slide 4 of the X-axis linear motion platform 3. A winding box 7 is slidably mounted on the left X-axis side of the column 6 along the Z-axis. A winding wheel 8 with an axial Y-axis is rotatably mounted on the front Y-axis side of the winding box 7. A winding servo motor 19 is installed inside the winding box 7. The output shaft of the winding servo motor 19 is connected to the winding wheel 8, driving the winding wheel 8 to rotate. A second feed servo motor 9 is fixedly mounted on the top of the column 6. The second feed servo motor 9 drives the winding box 7 to slide along the Z-axis on the left X-axis side of the column 6 through a reducer-connected screw-nut mechanism, thereby allowing the winding wheel 8 to move in the Z-axis.

[0021] A die 10 is fixed inside the stamping support frame 2, located to the left of the winding wheel 8 in the X direction. A slider 11 is slidably mounted in the stamping support frame 2 above the die 10 along the Z direction. A punch 12 is fixedly connected to the lower end of the slider 11, and the punch 12 is directly opposite the upper opening of the die cavity of the die 10. A crank-connecting rod mechanism is installed in the die support frame 2 above the slider 11. The crank-connecting rod mechanism includes a crankshaft 13 and a connecting rod 14. The crankshaft 13 is axially in the X direction and is rotatably mounted in the die support frame 2. One end of the connecting rod 14 is rotatably fitted onto the crankshaft 13, and the other end of the connecting rod 14 is rotatably connected to the upper end of the slider 11. The die support frame 2 also includes a stamping servo motor 15 and a synchronous pulley mechanism. The stamping servo motor 15 is fixed in the die support frame 2. The driving synchronous pulley 16 and the driven synchronous pulley 17 in the synchronous pulley mechanism are both rotatably mounted in the die support frame 2. The output shaft of the stamping servo motor 15 is fixedly connected to the driving synchronous pulley 16, and the driven synchronous pulley 17 is fixedly connected to one end of the crankshaft 13 in the crank-connecting rod mechanism. Thus, the stamping servo motor 15 drives the crank-connecting rod mechanism to move the slider 11 along the Z-axis, thereby causing the punch 12 to move along the Z-axis.

[0022] When the strip material 18 to be slotted enters the stamping support frame 2 horizontally along the X direction and passes through the top surface of the die 10, the punch 12 moves downward along the Z direction to punch a groove at the corresponding position of the strip material 18. After the groove is formed, the strip material 18 continues to move along the X direction to the winding wheel 8 and is wound onto the winding wheel 8. Each time the winding wheel 8 rotates, it adds one more turn of the pulley 8 around its circumference, thus increasing the thickness of the pulley 8 by one turn. At this time, the second feed servo motor 9 drives the winding box 7 and the winding wheel 8 to move downward along the Z direction by a set distance, thereby ensuring that the strip material 18 passing through the top surface of the die 10 can remain horizontal.

[0023] The winding wheel is indexed at a predetermined angle, thus the program for controlling the motor is simple; simply changing the number of slots allows for the production of different products.

[0024] The first feed servo motor drives the column and winding box to move horizontally along the X-axis in each slot, thereby compensating for the straightness of the slot shape. Because the strip winding is a constant-feed spiral (Archimedean spiral), the radius of any two adjacent slots is different. The radius difference between two adjacent slots is σ / Z, and the arc length after two adjacent slots also differs by (2πσ / Z^2). Therefore, only one of the two parameters, the strip thickness σ and the number of slots Z, needs to be changed according to the product to process the next product.

[0025] The preferred embodiments of this utility model have been described in detail above with reference to the accompanying drawings. These embodiments are merely descriptions of preferred embodiments and are not intended to limit the concept and scope of this utility model. The various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. Such combinations, as long as they do not violate the spirit of this utility model, should also be considered as part of this disclosure. To avoid unnecessary repetition, this utility model will not further describe all possible combinations.

[0026] This utility model is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this utility model and without departing from the design idea of ​​this utility model, all modifications and improvements made by those skilled in the art to the technical solution of this utility model should fall within the protection scope of this utility model. The technical content for which protection is sought in this utility model has been fully recorded in the claims.

Claims

1. A CNC punching and winding machine controlled by four servo motors, characterized in that, The system includes a base, on the top of which is mounted an X-axis linear motion platform driven by a first feed servo motor. A column is fixed on the X-axis linear motion platform, and a winding box is mounted on the side of the column. The winding box can slide along the Z-axis on the corresponding side of the column, and a second feed servo motor is mounted on the top of the column to drive the winding box to slide in the Z-axis. A winding wheel with an axial direction in the Y-axis is rotatably mounted on the winding box, and a winding servo motor that drives the winding wheel to rotate is installed inside the winding box. A stamping support frame is also mounted on the top of the base on the X-axis side of the winding wheel. The stamping support frame contains a die and a punch that can move in the Z-axis direction driven by a stamping servo motor. The material with the groove is horizontally passed from the top surface of the die, punched by the punch to form a groove, and then wound onto the winding wheel.

2. The CNC punching and winding machine controlled by four servo motors according to claim 1, characterized in that, The X-axis linear motion platform is a lead screw slide mechanism. The first feed servo motor drives the lead screw in the lead screw slide mechanism to rotate so that the slide moves along the X-axis. The column is fixed on the slide of the lead screw slide mechanism.

3. The CNC punching and winding machine controlled by four servo motors according to claim 1, characterized in that, The second feed servo motor drives the winding box to slide along the Z-direction on the linear guide rail installed on the corresponding side of the column through a reducer-connected lead screw and nut mechanism.

4. The CNC punching and winding machine controlled by four servo motors according to claim 1, characterized in that, A crank-connecting rod mechanism is rotatably mounted in the stamping support frame. A slider is slidably mounted in the stamping support frame below the crank-connecting rod mechanism along the Z direction. The slider is suspended above the die. The connecting rod in the crank-connecting rod mechanism is connected to the slider. The punch is fixed at the bottom of the slider. The stamping servo motor is connected to the crankshaft in the crank-connecting rod mechanism.

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