Numerical control notching winding machine controlled by four servo motors

Abstract

The invention 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] The invention relates to the field of slot punching and winding machines, in particular to a numerically controlled slot punching and winding machine controlled by four servo motors. Background Art

[0002] When processing the iron core of a disc motor, the iron core strip needs to be wound into a disc, and then grooves need to be punched on the iron core strip. There are two existing technologies. One is to first wind it into a disc and then use metal to cut the grooves; the other is to punch the grooves before winding, and the wound iron core slides along a fixed track. These have corresponding problems. The coolant from metal cutting will penetrate into the gaps in the strip, which is difficult and troublesome to remove; the iron core slides along the fixed track and scratches the paint film on the surface of the strip. Summary of the invention

[0003] The invention provides a numerically controlled slotting and winding machine controlled by four servo motors, which does not require cooling liquid and does not contact any friction surface during the winding process, so as to solve the paint film scratch problem existing in the prior art.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is: A CNC slotting and winding machine controlled by four servo motors comprises a base, an X-direction linear motion platform driven by a first feed servo motor is installed on the top of the base, a column is fixed on the X-direction linear motion platform, a winding box is installed on the side of the column, the winding box can slide along the Z direction on the corresponding side of the column, and a second feed servo motor driving the winding box to slide in the Z direction is installed on the top of the column, a winding wheel with an axial direction in the Y direction is rotatably installed on the winding box, and a winding servo motor driving the winding wheel to rotate is installed in the winding box; a stamping support frame is also installed on the top of the base on the X-direction side of the winding wheel, a punching die and a punch driven by a stamping servo motor and movable in the Z direction are installed in the stamping support frame, and the slotting strip is horizontally passed through the top surface of the punching die and punched by the punch to form a groove and then wound onto the winding wheel.

[0005] Furthermore, the X-axis linear motion platform is a screw slide mechanism, the first feed servo motor drives the screw in the screw slide mechanism to rotate so that the slide moves along the X direction, and the column is fixed on the slide of the screw slide mechanism.

[0006] 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 the reducer connected to the screw nut mechanism.

[0007] Furthermore, a crank-connecting rod mechanism is rotatably installed in the stamping support frame, a slider is slidably installed along the Z direction in the stamping support frame located below the crank-connecting rod mechanism, 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, and the stamping servo motor is connected to the crankshaft in the crank-connecting rod mechanism.

[0008] In the present invention, the stamping servo motor drives the crank-connecting rod mechanism to move, thereby driving the punch to move in the Z direction, and the strip to be slotted passes horizontally from the top surface of the die, and the punch moves downward in the Z direction to slot the strip to be slotted, and the strip punched into slots finally moves along the X direction to the winding wheel and is wound on the winding wheel.

[0009] In the present invention, the winding wheel is indexed at a determined angle of 2π / Z (Z is the number of slots on the core).

[0010] In the present invention, after the winding wheel rotates a complete circle, the second feed servo motor drives the winding box to move downward along the Z direction, thereby ensuring that after the winding wheel winds the strip to form an outer ring of a certain thickness, the strip subsequently moving to the top surface of the die can remain in a horizontal state.

[0011] In the present invention, the first feed servo motor drives the column and the winding box to move horizontally along the X direction as a whole according to the design of each slot, thereby compensating and achieving the straightness requirement of the slot shape. Because the strip winding is an isotropic spiral (Archimedes spiral), the radius of any circle is different, and the radius difference between two adjacent slots is σ / Z, and the arc length after the two adjacent slots is also different (2πσ / Z^2).

[0012] Compared with the prior art, the present invention has the following advantages: 1. Combined with the principle of isoprogressive spiral (Archimedes spiral), the mathematical model is simple and easy to implement and control.

[0013] 2. It can effectively avoid the influence of existing technology on the iron core.

[0014] 3. The core processing range is large and the variety change is convenient. It is very suitable for multi-variety production and new product development. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of an embodiment of the present invention. DETAILED DESCRIPTION

[0016] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0017] like Figure 1As shown, this embodiment discloses a CNC slotting and winding machine controlled by four servo motors, including a base 1, a boss protruding upward 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 on the top of the boss. An X-direction linear motion platform 3 is installed on the top of the base 1 to the right of the boss. The X-direction linear motion platform 3 is a screw slide mechanism, which includes a screw rotatably installed on the base 1 and axially horizontal to the X direction, and a slide 4 slidably installed on the base 1 along the X direction and screwed on the screw. A first feed servo motor 5 is fixed on the base 1 to the right of the X-direction 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.

[0018] A column 6 is fixedly connected to the slide 4 of the X-direction linear motion platform 3, a winding box 7 is installed on the X-direction left side of the column 6 for sliding along the Z direction, a winding wheel 8 with its axial direction in the Y direction is installed for rotation on the Y-direction front side of the winding box 7, a winding servo motor 19 is installed in the winding box 7, the output shaft of the winding servo motor 19 is connected to the winding wheel 8, and the winding wheel 8 is driven to rotate by the winding servo motor 19. A second feed servo motor 9 is fixedly installed on the top of the column 6, and the second feed servo motor 9 drives the winding box 7 to slide along the Z direction on the X-direction left side of the column 6 through a reducer connected to a screw nut mechanism, thereby allowing the winding wheel 8 to move in the Z direction.

[0019] A die 10 is fixed in the punch support frame 2, and the die 10 is located on the left side of the winding wheel 8 in the X direction. A slider 11 is slidably installed in the punch support frame 2 above the die 10 along the Z direction, and a punch 12 is fixedly connected to the lower end of the slider 11, and the punch 12 is directly opposite to the upper end hole 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, and the crank-connecting rod mechanism includes a crankshaft 13 and a connecting rod 14. The axial direction of the crankshaft 13 is in the X direction, and the crankshaft 13 is rotatably installed in the die support frame 2. One end of the connecting rod 14 is rotatably mounted on 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 is also provided with 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 installed 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 drive the slider 11 to move in the Z direction, thereby causing the punch 12 to move in the Z direction.

[0020] When the strip 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 the corresponding position of the strip 18 into a slot, and the corresponding position of the strip 18 after the slot is formed continues to move along the X direction to the winding wheel 8 and is wound on the winding wheel 8. For each rotation of the winding wheel 8, the winding wheel 8 increases the thickness of the belt wheel 8 by one circle in the circumferential direction, thereby increasing the thickness of the belt wheel 8 by one circle. At this time, the second feeding servo motor 9 drives the winding box 7 and the winding wheel 8 to move downward along the Z direction by a set distance as a whole, thereby ensuring that the strip 18 passing through the top surface of the die 10 in the future can remain horizontal.

[0021] The winding wheel is indexed at a determined angle, so the program for controlling the motor is simple, and the changed product can be produced by simply changing the number of slots.

[0022] The first feed servo motor drives the column and the winding box to move horizontally along the X direction as a whole according to the design of each slot, thereby compensating and achieving the straightness requirements of the slot shape. Because the strip winding is an isotropic spiral (Archimedes spiral), the radius of any circle is different, the radius difference between two adjacent slots is σ / Z, and the arc length after two adjacent slots is also different (2πσ / Z^2), so you only need to change the strip thickness σ and the number of slots Z or one of them according to the product to process the next product.

[0023] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. The embodiments described in the present invention are merely descriptions of the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention. The various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction, and such combinations should also be regarded as the contents disclosed in the present disclosure as long as they do not violate the concept of the present invention. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0024] The present invention is not limited to the specific details of the above-mentioned embodiments. Within the technical concept of the present invention and without departing from the design concept of the present invention, various modifications and improvements made to the technical solution of the present invention by technical personnel in this field should fall within the protection scope of the present invention. The technical contents for which protection is sought in the present invention have been fully recorded in the claims.

Claims

1. Four servo motor controlled CNC slotting and winding machine, characterized in that: It includes a base, an X-direction linear motion platform driven by a first feed servo motor is installed on the top of the base, a column is fixed on the X-direction linear motion platform, a winding box is installed on the side of the column, the winding box can slide along the Z direction on the corresponding side of the column, and a second feed servo motor driving the winding box to slide in the Z direction is installed on the top of the column, a winding wheel with an axial direction in the Y direction is rotatably installed on the winding box, and a winding servo motor driving the winding wheel to rotate is installed in the winding box; a stamping support frame is also installed on the top of the base on the X-direction side of the winding wheel, and a punch driven by a stamping servo motor and movable in the Z direction is installed in the stamping support frame, and the grooved strip material is horizontally passed through the top surface of the die by the punch to form a groove and then wound onto the winding wheel.

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

3. The CNC slotting 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 the reducer connected to the lead screw nut mechanism.

4. The CNC slotting and winding machine controlled by four servo motors according to claim 1, characterized in that: A crank-connecting rod mechanism is rotatably installed in the stamping support frame, a slider is slidably installed along the Z direction in the stamping support frame located below the crank-connecting rod mechanism, 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, and the stamping servo motor is connected to the crankshaft in the crank-connecting rod mechanism.

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