Inner hole slotting equipment for stator and rotor iron cores of motor

Abstract

The invention relates to the technical field of motor stator and rotor iron core inner hole slotting, in particular to motor stator and rotor iron core inner hole slotting equipment which comprises a hollow block connected to the surface of a hollow pipe in a sleeving mode, the interior of the hollow block is rotationally connected with a tooth column, and one end of the tooth column is fixedly connected with a driving source. Two symmetrically arranged gears are connected to the surface of the tooth column in a meshed mode, electric telescopic rods are fixedly installed at the ends, away from each other, of the two gears, and vertical rods are fixedly connected to the ends, away from each other, of telescopic sections of the two electric telescopic rods; the ends, away from each other, of the two vertical rods penetrate through the interior of the hollow block and are fixedly provided with drill bits, and a limiting rod is arranged between the two gears. According to the iron core grooving device, all the parts are used in cooperation, the groove leaning depth of an iron core can be automatically adjusted according to needs in the grooving process, meanwhile, chippings generated during grooving are cleaned, and the chippings are prevented from polluting air while the grooving precision is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of inner hole slotting for motor stator and rotor cores, in particular to inner hole slotting equipment for motor stator and rotor cores. Background Art

[0002] A motor is an electromagnetic device that converts or transmits electrical energy based on the law of electromagnetic induction. Its main function is to generate driving torque. It includes a stator core, which is an important component that constitutes the motor's magnetic flux circuit and fixes the stator coil.

[0003] In the manufacturing process of the stator and rotor core of the motor, inner hole slotting is one of the core processes. The slot structure on the inner wall of the stator core is usually used to embed winding coils or optimize electromagnetic performance. Its processing accuracy directly affects the efficiency, noise and life of the motor. The stator core is mostly made of laminated silicon steel sheets, which are hard and brittle. During small-batch production or sample manufacturing, the inner wall of the core is prone to produce a large amount of fine metal debris during cutting and escape into the air, causing air pollution. Summary of the invention

[0004] The purpose of the present invention is to provide an inner hole slotting device for motor stator and rotor cores to solve the problem in the prior art proposed in the above background technology that metal debris is generated when slotting the motor stator and rotor cores, causing air pollution and endangering the health of operators.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an inner hole slotting device for a motor stator and rotor core, comprising a processing body, a support frame for carrying the core is fixedly installed on the upper surface of the processing body, two sets of positioning rings for fixing the core are arranged above the processing body, and a hollow tube is fixedly installed on one side of the positioning ring located on the left side; The gear train is also provided with a slotting assembly which is arranged inside the right positioning ring and is used for slotting the iron core. The slotting assembly includes a hollow block which is sleeved on the surface of the hollow tube. A tooth column is rotatably connected inside the hollow block, and one end of the tooth column is fixedly connected to a driving source. Two groups of symmetrically arranged gears are meshedly connected on the surface of the tooth column. Electric telescopic rods are fixedly installed at the ends of the two groups of gears which are away from each other. Vertical rods are fixedly connected at the ends of the telescopic sections of the two groups of electric telescopic rods which are away from each other. A drill bit is fixedly installed at the ends of the two groups of vertical rods which are away from each other. A limit rod is provided between the two groups of gears.

[0006] Furthermore, the hollow tube is divided into two sections, and a gap is left at one end close to each other. A slider is fixedly installed at the end of the hollow tube, and the lower end of the slider and the lower end of the right positioning ring are slidably matched with the strip groove opened on the surface of the processing body, and the lower end of the slider and the right positioning ring are movably connected with a conveying module.

[0007] Furthermore, the surface of the hollow tube is provided with a plurality of through holes at equal intervals, and the through holes are connected to the interior of the hollow tube, the surface of the through holes is fitted with an elastic sealing cover, and the two ends of the elastic sealing cover are respectively fixedly connected to the surface of one side and the right side positioning ring of the slider.

[0008] Furthermore, a collecting box is fixedly mounted on one side of the sliding block, an upper end of the collecting box is connected to a material pipe, and an upper end of the material pipe is connected to the hollow tube.

[0009] Furthermore, the two ends of the limit rod are respectively inserted into the ends of the electric telescopic rods that are close to each other, and the limit rod is slidably matched with the inner walls of the two groups of electric telescopic rods, and the limit rod is fixedly connected to the inner wall of the hollow block through a fixing ring.

[0010] Furthermore, it also includes a cleaning component for cleaning debris generated during the core grooving process, the cleaning component includes a driving tooth sleeved on the surface of the limiting rod, the surface of the driving tooth is meshingly connected with a mating tooth, a driven rod is fixedly installed on one side of the mating tooth, and the end of the driven rod is fixedly connected to a conveying impeller.

[0011] Furthermore, the end of the driven rod penetrates the hollow block and extends into the interior of the hollow tube, and two groups of connecting rods are symmetrically installed on the surface of the driven rod, and the ends of the two groups of connecting rods that are away from each other are inserted into the gap, and the ends of the two groups of connecting rods that are away from each other are fixedly connected with connecting bearings, and the connecting bearings are sleeved on the surface of the hollow tube for connecting the hollow tube, and two groups of soft brushes are symmetrically installed on the surface of the connecting bearings.

[0012] Furthermore, the end of the conveying impeller is rotatably connected to the inner wall of the hollow tube, and the surface of the conveying impeller fits the inside of the hollow tube.

[0013] Compared with the known prior art, the technical solution provided by the present invention has the following beneficial effects: 1. The present invention provides hollow blocks, gears, limit rods and other components that cooperate with each other. When slotting the stator core, the tooth column is driven by a driving source to start rotating, which will synchronously drive the two sets of gears, so that the telescopic end of the electric telescopic rod can drive the drill bit to rotate and start slotting the core. Under the action of the electric telescopic rod, the slotting depth of the inner wall of the core can be automatically adjusted as needed, and the drill bit position can be automatically adjusted according to the shape of the core, thereby increasing the practicality of the device.

[0014] 2. The present invention provides driving teeth, driven rods, conveying impellers and other components that cooperate with each other. During the grooving of the iron core, the electric telescopic rod will drive the driving teeth on the surface of the limit rod to rotate synchronously, and start to drive the matching teeth to rotate synchronously, and drive the conveying impeller to rotate synchronously through the driven rod. At the same time, with the continuous movement of the right slider, the hollow tube with a through hole will enter the interior of the iron core, and the rotating hollow tube will also drive the soft brush installed on the surface of the connecting bearing to rotate synchronously through the connecting rod, so that the debris on the inner wall of the iron core is brushed up, and at the same time, with the suction force generated by the negative pressure device, the debris can be quickly absorbed and transported into the collection box through the conveying impeller, thereby achieving the purpose of cleaning the debris. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] 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 prior art descriptions. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the right end positioning ring of the present invention; Figure 3 It is a schematic diagram of the structure of the slotting assembly of the present invention; Figure 4 for Figure 3 A schematic diagram of the structure enlargement in the middle; Figure 5 It is a schematic diagram of the installation position of the driving gear and the matching gear of the present invention; Figure 6 It is a schematic diagram of the cleaning component structure of the present invention.

[0017] In the figure: 1. processing body; 2. support frame; 3. positioning ring; 301. hollow tube; 3011. through hole; 3012. elastic sealing cover; 302. slider; 3021. collecting box; 3022. material tube; 4. slotting assembly; 401. hollow block; 402. tooth column; 403. gear; 404. electric telescopic rod; 405. vertical rod; 406. drill bit; 407. limit rod; 5. cleaning assembly; 501. driving tooth; 502. matching tooth; 503. driven rod; 5031. connecting rod; 504. connecting bearing; 505. soft brush; 506. conveying impeller. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0019] The present invention will be further described below in conjunction with the embodiments.

[0020] Embodiment: An inner hole slotting device for a motor stator and rotor core, such as Figure 1-Figure 6 As shown, it includes a processing body 1, the surface of which is penetrated by two groups of strip grooves, and the length of the strip groove on the right is longer than that of the strip groove on the left, which is used to play a guiding and limiting role; a support frame 2 for carrying the iron core is fixedly installed on the upper surface of the processing body 1, and the support frame 2 is an arc-shaped structure so as to be more closely matched with the surface of the iron core; it is worth mentioning that an automatic transposition module is provided between the middle parts of the support frame 2, which is a prior art and is not shown in the figure. Its working principle is to drive the iron core to rotate synchronously by rotating, so that after a group of slots inside the iron core are opened, the iron core is driven to automatically transpose, thereby accelerating the efficiency of iron core slotting; Among them, two groups of positioning rings 3 for fixing the iron core are provided above the processing body 1, which are used to ensure that the iron core can remain stable during the grooving process and that the grooving accuracy of the iron core meets the requirements; a hollow tube 301 is fixedly installed on one side of the positioning ring 3 on the left, and the end of the hollow tube 301 is connected to a negative pressure device. By setting the hollow tube 301, the parts can be positioned; it is worth noting that the negative pressure device is a prior art and can generate suction.

[0021] Among them, the hollow tube 301 is divided into two sections, and a gap is left at one end close to each other. By setting the hollow tube 301 at both ends and leaving a gap, it is convenient for the installation and placement of other components; the surface of the hollow tube 301 is provided with multiple groups of through holes 3011 at equal intervals, and the through holes 3011 are connected to the inside of the hollow tube 301. By providing the through holes 3011, it can cooperate with the negative pressure equipment so that the external gas can enter the inside of the hollow tube 301 through the inside of the through holes 3011, and be discharged to the outside through the negative pressure equipment; the surface of the through hole 3011 is attached with an elastic sealing cover 3012, and the two ends of the elastic sealing cover 3012 are respectively fixedly connected to one side of the slider 302 and the surface of the right positioning ring 3. By providing the elastic sealing cover 3012, the through hole 3011 can be sealed to prevent it from being blocked by external debris and affecting the fluidity of the through hole 3011; Among them, a slider 302 is fixedly installed at the end of the hollow tube 301, and the lower end of the slider 302 and the lower end of the right positioning ring 3 are slidably matched with the strip groove opened on the surface of the processing body 1, and the slider 302 and the lower end of the right positioning ring 3 are movably connected with a conveying module, which is a prior art, not shown in the figure, and is not repeated here. Its function is to drive the two groups of hollow tubes 301 to move relative to each other, clamp the iron core, ensure the stability of the iron core during the grooving process, and after the iron core is clamped, the conveying module will continue to move and only drive the right The side slider 302 continues to move, and the two groups of hollow tubes 301 no longer move; a collecting box 3021 is fixedly installed on one side of the slider 302, and the upper end of the collecting box 3021 is connected to the material pipe 3022, and the upper end of the material pipe 3022 is connected to the hollow tube 301. The collecting box 3021 is provided to collect the debris received into the hollow tube 301; it is worth mentioning that a filter net for filtering metal debris in the air is provided at the position where the material pipe 3022 is connected to the hollow tube 301, so that the debris in the air can be discharged to the outside after being filtered.

[0022] Combined with Figure 1 -Attached Figure 6 , and also includes a slotting component 4 arranged inside the right positioning ring 3 for slotting the iron core, so that the iron core can automatically adjust the slotting depth as needed during the slotting process, thereby increasing the practicality of the device; the slotting component 4 includes a hollow block 401 sleeved on the surface of the hollow tube 301, and the hollow block 401 is fixedly connected to one end of the hollow tube 301, so that when the hollow tube 301 moves, it moves synchronously with the hollow tube 301; it is worth noting that a sensor for detecting the inner wall diameter of the iron core is installed on the surface of the hollow block 401, and the sensor is a prior art and is not shown in the figure; the hollow block 401 is internally rotatably connected with a tooth column 402, and one end of the tooth column 402 is fixedly connected with a driving source, and by setting the tooth column 402 and the driving source, it can rotate under the action of the driving source; it is worth noting that the driving source is a prior art, and a motor or other equipment can be selected; Among them, the surface of the gear column 402 is meshed and connected with two groups of symmetrically arranged gears 403. By setting the gears 403, they can cooperate with the rotating gear column 402, so as to rotate synchronously with the gear column 402; the ends of the two groups of gears 403 that are away from each other are fixedly installed with electric telescopic rods 404. By setting the electric telescopic rods 404, the positions of the gears 403 can be automatically adjusted as needed; it is worth mentioning that the electric telescopic rod 404 is electrically connected to the sensor for detecting the inner wall diameter of the iron core through the controller, and when the sensor detects that the inner wall diameter of the iron core changes, it can send an electrical signal to the controller, and the electric telescopic rod 404 is controlled by the controller to move.

[0023] Among them, the ends of the telescopic sections of the two sets of electric telescopic rods 404 that are away from each other are fixedly connected with vertical rods 405, and by setting the vertical rods 405, they can move synchronously with the electric telescopic rods 404; the ends of the two sets of vertical rods 405 that are away from each other penetrate the interior of the hollow block 401 and are fixedly installed with drill bits 406, which are used to groove the inner wall of the iron core by setting the drill bits 406, and can move synchronously with the vertical rods 405 to control the depth of the grooves; a limit rod 407 is provided between the two sets of gears 403, and by setting the limit rod 407, it can play a role of limiting, so that the gears 403 can follow the electric telescopic rods 404. The electric telescopic rod 404 moves normally and will not be affected by the centrifugal force when the gear 403 rotates; the two ends of the limit rod 407 are respectively inserted into the ends of the electric telescopic rod 404 that are close to each other, and the limit rod 407 slides with the inner walls of the two groups of electric telescopic rods 404, and the limit rod 407 is fixedly connected to the inner wall of the hollow block 401 through a fixing ring; it is worth noting that a limit block is provided on the surface of the limit rod 407 inserted into the gear 403, and the limit block slides with the slide groove opened inside the telescopic end of the electric telescopic rod 404, so that when the gear 403 rotates, it can drive the limit rod 407 to rotate synchronously.

[0024] Combined with Figure 1 -Attached Figure 6 , and also includes a cleaning component 5 for cleaning the debris generated during the slotting process of the iron core, so that the debris generated on the inner wall of the iron core during the slotting process can be absorbed and processed to avoid escaping into the air, and at the same time, the debris is prevented from adhering to the inner wall of the iron core to affect the accuracy of the slotting; the cleaning component 5 includes a driving tooth 501 sleeved on the surface of the limit rod 407, and the surface of the driving tooth 501 is meshedly connected with a matching tooth 502. By setting the driving tooth 501 and the matching tooth 502, when the driving tooth 501 rotates synchronously with the limit rod 407, the matching tooth 502 can be synchronously driven to rotate, thereby achieving the purpose of kinetic energy transmission; Among them, a driven rod 503 is fixedly installed on one side of the mating tooth 502, and the end of the driven rod 503 penetrates the hollow block 401 and extends to the inside of the hollow tube 301. By setting the driven rod 503, the mating tooth 502 can be positioned and can rotate synchronously with the mating tooth 502; two groups of connecting rods 5031 are symmetrically installed on the surface of the driven rod 503, and the ends of the two groups of connecting rods 5031 away from each other are inserted in the gap. By setting the connecting rod 5031, the purpose of synchronous rotation with the driven rod 503 can be achieved; the ends of the two groups of connecting rods 5031 away from each other are fixedly connected with connecting bearings 504, and the connecting bearings 504 are sleeved on the surface of the hollow tube 301 for connecting the hollow tube 301. By setting the connecting bearings 504, when the driven rod 503 rotates, the connecting bearings 504 can follow the driven rod 503 through the connection of the connecting rods 5031. The surface of the connecting bearing 504 is symmetrically installed with two groups of soft brushes 505. By setting the soft brushes 505, it can rotate under the drive of the connecting bearing 504 to clean the inner wall of the iron core to prevent debris from sticking to the inner wall of the iron core and affecting the accuracy of the grooving; the end of the driven rod 503 is fixedly connected with a conveying impeller 506, and the end of the conveying impeller 506 is rotatably connected to the inner wall of the hollow tube 301, and the surface of the conveying impeller 506 is in contact with the interior of the hollow tube 301. By setting the conveying impeller 506, it can rotate synchronously with the driven rod 503 to convey the debris sucked into the hollow tube 301, and make the debris enter the collection box 3021 from the inside of the material pipe 3022 for collection; it is worth noting that a cleaning brush is installed at the end of the conveying impeller 506 for cleaning the debris accumulated on the surface of the filter screen to prevent the filter screen from being blocked and affecting the suction and cleaning of the debris.

[0025] Specifically, when slotting the inner wall of the iron core, the iron core is first placed on the surface of the support frame 2 and in contact with the automatic transposition module, and then the conveying module is started to drive the two sets of positioning rings 3 to start relative movement and clamp the iron core. After the iron core is fixed, with the continuous action of the conveying module, the slider 302 on the right side will continue to move, so that the hollow tube 301 starts to drive the slotting assembly 4 to move synchronously, and the drill bit 406 starts to contact the right end of the iron core; When the vertical rod 405 begins to contact the end of the iron core, the negative pressure device and the driving source are started at the same time, so that the tooth column 402 starts to drive the two sets of gears 403 to rotate synchronously, and the drill bit 406 is driven to rotate through the cooperation of the electric telescopic rod 404 and the vertical rod 405 to start grooving the inner wall of the iron core. During the grooving process, the hollow tube 301 will gradually enter the interior of the iron core and open the through hole 3011, so that the hollow tube 301 is connected with the interior of the iron core. At the same time, under the action of the negative pressure device, the iron core The debris generated by the grooving will be sucked into the interior of the hollow tube 301. During the grooving process, the driven rod 503 will synchronously drive the soft brush 505 installed on the surface of the connecting bearing 504 to rotate synchronously through the connecting rod 5031, so as to clean the inner wall of the iron core, so that the debris does not stick to the inner wall of the iron core, thereby ensuring the grooving accuracy; at the same time, the conveying impeller 506 driven by the driven rod 503 will convey the debris to the direction of the material pipe 3022, so that the debris enters the interior of the collection box 3021, which is convenient for subsequent cleaning.

[0026] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. An inner hole slotting device for a motor stator and rotor core, comprising a processing body (1), a support frame (2) for supporting the core being fixedly mounted on the upper surface of the processing body (1), characterized in that: Two sets of positioning rings (3) for fixing the iron core are provided above the processing body (1), and a hollow tube (301) is fixedly installed on one side of the positioning ring (3) on the left side, and the end of the hollow tube (301) is connected to a negative pressure device; The invention also comprises a slotting assembly (4) arranged inside the right positioning ring (3) for slotting the iron core, the slotting assembly (4) comprising a hollow block (401) sleeved on the surface of the hollow tube (301), a tooth column (402) rotatably connected inside the hollow block (401), and one end of the tooth column (402) is fixedly connected to a driving source, two groups of symmetrically arranged gears (403) are meshingly connected on the surface of the tooth column (402), electric telescopic rods (404) are fixedly installed at the ends of the two groups of gears (403) away from each other, vertical rods (405) are fixedly connected at the ends of the telescopic sections of the two groups of electric telescopic rods (404) away from each other, and drill bits (406) are fixedly installed at the ends of the two groups of vertical rods (405) away from each other, and a limit rod (407) is provided between the two groups of gears (403).

2. The inner hole slotting device for the stator and rotor core of a motor according to claim 1, characterized in that: The hollow tube (301) is divided into two sections, and a gap is left at one end close to each other. A slider (302) is fixedly installed at the end of the hollow tube (301), and the lower end of the slider (302) and the lower end of the right positioning ring (3) are both slidably matched with the strip groove opened on the surface of the processing body (1), and the lower ends of the slider (302) and the right positioning ring (3) are movably connected with a conveying module.

3. The inner hole slotting device for the stator and rotor core of a motor according to claim 2, characterized in that: The surface of the hollow tube (301) is provided with a plurality of groups of through holes (3011) at equal intervals, and the through holes (3011) are connected to the interior of the hollow tube (301). An elastic sealing cover (3012) is attached to the surface of the through holes (3011), and the two ends of the elastic sealing cover (3012) are respectively fixedly connected to the surface of one side of the slider (302) and the right side positioning ring (3).

4. The inner hole slotting device for the stator and rotor core of a motor according to claim 3, characterized in that: A collecting box (3021) is fixedly mounted on one side of the sliding block (302); the upper end of the collecting box (3021) is connected to a material pipe (3022), and the upper end of the material pipe (3022) is connected to the hollow tube (301).

5. The inner hole slotting device for the stator and rotor core of a motor according to claim 1, characterized in that: The two ends of the limit rod (407) are respectively inserted into the ends of the electric telescopic rods (404) that are close to each other, and the limit rod (407) is slidably matched with the inner walls of the two groups of electric telescopic rods (404), and the limit rod (407) is fixedly connected to the inner wall of the hollow block (401) via a fixing ring.

6. The inner hole slotting device for the stator and rotor core of a motor according to claim 1, characterized in that: It also includes a cleaning assembly (5) for cleaning debris generated during the core slotting process, the cleaning assembly (5) comprising a driving tooth (501) sleeved on the surface of a limiting rod (407), the surface of the driving tooth (501) being meshingly connected with a mating tooth (502), a driven rod (503) being fixedly mounted on one side of the mating tooth (502), and a conveying impeller (506) being fixedly connected to the end of the driven rod (503).

7. The inner hole slotting device for the stator and rotor core of a motor according to claim 6, characterized in that: The end of the driven rod (503) penetrates through the hollow block (401) and extends into the interior of the hollow tube (301); two groups of connecting rods (5031) are symmetrically mounted on the surface of the driven rod (503); the ends of the two groups of connecting rods (5031) that are away from each other are inserted into the gap; the ends of the two groups of connecting rods (5031) that are away from each other are fixedly connected to connecting bearings (504); the connecting bearings (504) are sleeved on the surface of the hollow tube (301) for connecting the hollow tube (301); and two groups of soft brushes (505) are symmetrically mounted on the surface of the connecting bearings (504).

8. The inner hole slotting device for the stator and rotor core of a motor according to claim 7, characterized in that: The end of the conveying impeller (506) is rotatably connected to the inner wall of the hollow tube (301), and the surface of the conveying impeller (506) is in contact with the interior of the hollow tube (301).

Images