A method for processing motor stator busbar
By setting detection components and paint components in the bending machine of the motor stator busbar, the fallen part of the insulating paint layer at the bend is automatically detected and covered, the problem of the insulating paint layer falling off during the bending process of the motor stator busbar is solved, and the insulation and stability of the product are improved.
Patent Information
- Application Number
- CN202411676740.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2044-11-22
AI Technical Summary
During the bending process of existing motor stator busbar, the insulating paint layer is prone to fall off, resulting in the motor short circuit after installation.
By setting up a detection component and a paint spray assembly in the bending machine, it is possible to detect whether the insulating paint layer falls off at the bend, and automatically spray the insulating paint liquid when it falls off to re-cover the fallen part.
It effectively prevents the problem of short circuit in the motor stator busbar when in use, improves the insulation and stability of the product, and reduces production costs.
Smart Images

Figure CN119175842B_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of busbar processing, in particular to a method for processing a motor stator busbar. Background Art
[0002] The motor stator bus is one of the indispensable components of the motor. It is usually installed on the stator of the motor and is used to transmit electrical energy from the power supply to the stator winding of the motor so that the motor winding can receive the power supply energy and realize the normal operation of the motor.
[0003] In the prior art, the enameled wire is first conveyed to the bending machine through a conveying device. During this process, the enameled wire is straightened by a straightening device and a laser paint removal device, and the insulating paint layer on part of its surface falls off to expose the metal part. Subsequently, the bending device and the cutting device on the fixed plate are rotated synchronously by rotating the fixed plate on the bending machine, so that the enameled wire passes through the bending machine in a horizontal and straight line, and the direction of bending is determined by rotating the bending device. Subsequently, the enameled wire passing through the bending machine is squeezed to be bent, and after bending, it is cut and collected by a cutting device. Subsequently, the cut enameled wire is placed in an injection mold and injection molded, and the injection molded part is taken out after demolding to form a motor stator bus.
[0004] During the bending process of the enameled wire by the bending machine, when the enameled wire is bent by the bending device, one side of the wire is squeezed to form the inner side of the bend, and the other side is stretched to form the outer side of the bend. Due to the squeezing and stretching, the insulating paint layer on these two sides will fall off, causing the motor installed with this bus to have a short circuit problem when in use.
[0005] To this end, the present invention provides a method for machining a motor stator busbar. Summary of the invention
[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.
[0007] The technical solution adopted by the present invention to solve the technical problem is: a method for processing a motor stator busbar according to the present invention is specifically:
[0008] Preparation: Pull one end of the enameled wire through the conveyor, then pass it through the straightening device and laser paint removal device, and finally pass it through the discharge pipe;
[0009] Bending: The surface insulating coating of the enameled wire is first cut through the laser paint removal device to expose the metal part of the cut part, and then the enameled wire is transported through the conveying device. When the exposed metal part passes through the discharge pipe, it is cut through the bending device, and then the enameled wire is continued to be transported. The enameled wire passing through the bending machine is bent through the bending device, and the insulating coating at the bending part is detected to see if it falls off. After the bending is completed, the part at the output port of the discharge pipe is cut through the cutting device to make it fall into the collection box under the main body of the bending machine;
[0010] Injection molding: The enameled wire cut after bending is placed into the injection mold, and taken out after injection molding to form the motor stator bus.
[0011] Preferably, the bending is specifically as follows: a rotating groove is opened on the bending machine body, a rotating gear block is rotatably connected to the middle of the rotating groove, a guide gear is rotatably connected to the top of the rotating groove, a discharge pipe is fixedly connected to the middle of one end of the rotating gear block, a bending device is provided at one end of the rotating gear block, a cutting device is provided above the discharge pipe, the cutting device is fixed to the surface of one end of the rotating gear block, and an output motor is fixedly connected to the side of the bending machine body away from the discharge pipe;
[0012] The bending machine body and the rotating gear block are provided with a detection component, and the detection component includes a fixed rod fixed on the surface of one side of the bending machine body, the fixed rod is fixedly connected with an electric wire 1, and the end of the electric wire 1 away from the fixed rod is fixedly connected with a metal clamp, the outer surface of the discharge pipe is slidably connected with a wedge block 1, and the surface of the wedge block 1 is fixedly connected with a detection rod, the surface of the detection rod contacts the surface of the enameled wire, and one end of the detection rod is fixedly connected with a contact 1, and the surface of one end of the rotating gear block is fixedly connected with a guide column, and the end of the guide column away from the rotating gear block is slidably provided with a support block, and one side of the support block is fixedly connected with a contact 2. When the electric wire 1 is energized, the exposed metal part of the enameled wire is clamped by the metal clamp to energize the enameled wire, and when the insulating coating at the bending part falls off, the support block drives the contact 2 to conflict with the contact 1 through the detection rod.
[0013] Preferably, the guide gears are symmetrically arranged, and the output end of the output motor is coaxially fixed to a guide gear located at the top of the rotating groove.
[0014] Preferably, the bending device and the cutting device are arranged at the same end of the rotating gear block, and the bending device and the cutting device are symmetrically arranged with the discharge pipe as the center.
[0015] Preferably, the detection component also includes a manipulator, which is fixedly connected to the surface of the bending machine body, a compression spring is fixedly connected between the rotating gear block and the wedge block, a guide groove is opened inside the guide column, an end of the guide groove close to the rotating gear block is fixedly connected to an electromagnet, a magnet is slidably connected inside the guide groove, the magnet is in contact with the electromagnet, and the magnetic pole of the electromagnet is opposite to the contact surface of the magnet when energized, the end of the magnet away from the electromagnet is fixedly connected to a sliding rod, one end of the sliding rod is fixed to an end of the support block close to the guide column, a reset spring is fixedly connected between the magnet and the inner wall of the guide groove close to one end of the support block, and an electric wire is fixedly connected between the detection rod and the electromagnet.
[0016] Preferably, the first contact is located on the movement trajectory of the second contact.
[0017] Preferably, a paint spraying assembly is provided on the rotating gear block, and the paint spraying assembly includes a limiting groove, the limiting groove is provided in the rotating gear block, a cylindrical block is rotatably connected in the limiting groove, a guide rod 1 is fixedly connected to one end of the cylindrical block, a slider is slidably connected in the limiting groove, a guide groove 2 is provided on the slider, the guide rod 1 is slidably connected in the guide groove 2, and a side surface of the slider close to the limiting groove is fixedly connected to the guide rod 2.
[0018] Preferably, the guide rod 1 is eccentrically arranged on the cylindrical block, and a wedge-shaped groove is provided on the top of the guide rod 2, and the wedge-shaped groove on the top of the guide rod 2 matches the shape of the wedge-shaped block 1.
[0019] Preferably, the paint spraying assembly also includes a guide rod three, the guide rod three is fixedly connected to the top of the slider, the guide rod three is slidably connected to a fixed plate on a side close to the wedge block one, a piston cylinder is fixedly connected to the fixed plate, a piston rod is slidably connected in the piston cylinder, one end of the piston rod is fixedly connected to a wedge block two, a wedge block three is fixedly arranged on the bending device, the wedge block three is located on the movement trajectory of the wedge block two, the piston rod consists of a piston plate and a pumping rod, a return spring two is fixedly connected between the side of the piston plate on the piston rod close to the wedge block two and the inside of the piston cylinder, one side of the rotating gear block is fixedly connected to a paint liquid tank, a conduit is fixedly connected between the bottom end of the paint liquid tank and an end of the piston cylinder away from the wedge block two, and a spray nozzle is fixedly connected to the middle part of the end of the piston cylinder away from the wedge block two.
[0020] Preferably, the detection assembly and the paint spraying assembly on the rotating gear block are symmetrically arranged with the discharge pipe as the center.
[0021] The beneficial effects of the present invention are as follows:
[0022] 1. The present invention first energizes the enameled wire. When the insulating paint layer at the bend falls off, the detection rod conducts electricity to displace the support block, thereby causing contact point 2 to collide with contact point 1. Through this process, the falling off of the insulating paint layer at the bend of the enameled wire is detected, and the contact between contact point 2 and contact point 1 is used to prepare for subsequent operations.
[0023] 2. The present invention utilizes the interference between the wedge block 2 and the wedge block 3 to spray the insulating paint liquid in the piston cylinder through the spray nozzle. At the same time, the wedge groove at the top of the guide rod 2 interferes with the wedge block 1 to make the wedge block 1 slide. In the process of spraying the insulating paint liquid by the spray nozzle, the wedge block 1 will not block the sprayed insulating paint liquid, so that the insulating paint liquid covers the part of the insulating paint layer that falls off at the bend, thereby forming a new insulating paint layer, so that the enameled wire formed by bending after cutting has better insulation, thereby preventing the motor installed with this bus from short-circuiting during use, and ensuring the stability of the product.
[0024] 3. The present invention uses a detection component and a paint spraying component to ensure that the insulating paint layer of the enameled wire is re-covered with the insulating paint layer after the insulating paint layer falls off at the bending part during the bending process, thereby improving the quality of the product and reducing the production cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] The present invention will be further described below in conjunction with the accompanying drawings.
[0026] Figure 1 It is a schematic elevation diagram of the overall device of the present invention;
[0027] Figure 2 It is a rear view schematic diagram of the overall device of the present invention;
[0028] Figure 3 It is a schematic diagram of the position relationship between the rotating gear block and the guide gear of the present invention;
[0029] Figure 4 For the present invention Figure 3 The enlarged schematic diagram at A in the middle;
[0030] Figure 5 It is a schematic diagram of the position relationship between the rotating gear block and the bending device of the present invention;
[0031] Figure 6 This is a schematic diagram of the position relationship between the detection rod and the contact point of the present invention;
[0032] Figure 7 This is a schematic diagram of the positional relationship between the electromagnet and the magnet of the present invention;
[0033] Figure 8 It is a schematic diagram of the position relationship between the rotating gear block and the limiting groove of the present invention;
[0034] Fig. 9 This is a schematic diagram of the position relationship between the slider and the guide groove of the present invention;
[0035] Fig.10 It is a schematic diagram of the position relationship between the cylindrical block and the guide rod of the present invention;
[0036] Fig.11 This is a schematic diagram of the position relationship between the fixing plate and the piston cylinder of the present invention;
[0037] Fig.12 It is a schematic diagram of the position relationship between the piston rod and the wedge block of the present invention.
[0038] Reference numerals: 1. bending machine body; 11. rotating groove; 12. rotating gear block; 13. guide gear; 14. discharge pipe; 15. bending device; 16. cutting device; 17. output motor;
[0039] 21. Wedge block 1; 22. Compression spring; 23. Detection rod; 24. Fixing rod; 25. Wire 1; 26. Metal clip; 27. Manipulator; 28. Guide column; 29. Guide groove 1; 210. Electromagnet; 211. Magnet; 212. Sliding rod; 213. Support block; 214. Wire 2; 215. Contact 1; 216. Contact 2; 217. Reset spring 1;
[0040] 31. Limiting groove; 32. Cylindrical block; 33. Guide rod one; 34. Sliding block; 35. Guide groove two; 36. Guide rod two; 37. Guide rod three; 38. Fixed plate; 39. Piston cylinder; 310. Piston rod; 311. Wedge block two; 312. Wedge block three; 313. Return spring two; 314. Paint liquid tank; 315. Conduit; 316. Spray nozzle. DETAILED DESCRIPTION
[0041] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.
[0042] Embodiment 1
[0043] like Figures 1 to 12 As shown, a method for processing a motor stator busbar according to an embodiment of the present invention is specifically as follows:
[0044] Preparation: pulling one end of the enameled wire through the conveying device, then passing it through the straightening device and the laser paint removal device, and finally passing it through the discharge pipe 14;
[0045] Bending: The surface insulating coating of the enameled wire is first cut by a laser paint removal device to expose the metal part of the cut part, and then the enameled wire is transported by a conveying device. When the exposed metal part passes through the discharge pipe 14, it is cut by a bending device 15, and then the enameled wire is continuously transported. The enameled wire passing through the bending machine is bent by the bending device 15, and the insulating coating at the bending part is detected to be off. When the bending is completed, the enameled wire at the output port of the discharge pipe 14 is cut by a cutting device 16, so that it falls into a collection box below the bending machine body 1;
[0046] Injection molding: The enameled wire cut after bending is placed into the injection mold, and taken out after injection molding to form the motor stator bus.
[0047] Embodiment 2
[0048] like Figures 2 to 12 As shown, compared with Example 1, another implementation of the present invention is:
[0049] like Figures 2 to 10 As shown, the bending described in this embodiment is specifically that a rotating groove 11 is opened on the bending machine body 1, a rotating gear block 12 is rotatably connected to the middle of the rotating groove 11, a guide gear 13 is rotatably connected to the top of the rotating groove 11, a discharge pipe 14 is fixedly connected to the middle of one end of the rotating gear block 12, a bending device 15 is provided at one end of the rotating gear block 12, a cutting device 16 is provided above the discharge pipe 14, and the cutting device 16 is fixed to the surface of one end of the rotating gear block 12, and an output motor 17 is fixedly connected to the side of the bending machine body 1 away from the discharge pipe 14;
[0050] The bending machine body 1 and the rotating gear block 12 are provided with a detection component, which includes a fixed rod 24 fixed to the surface of one side of the bending machine body 1, and a wire 25 is fixedly connected to the fixed rod 24, and a metal clamp 26 is fixedly connected to the end of the wire 25 away from the fixed rod 24, and a wedge block 21 is slidably connected to the outer surface of the discharge pipe 14, and a detection rod 23 is fixedly connected to the surface of the wedge block 21, and the surface of the detection rod 23 contacts the surface of the enameled wire, and one end of the detection rod 23 is fixed A contact 1 215 is connected, a guide column 28 is fixedly connected to the surface of one end of the rotating gear block 12, a support block 213 is slidably provided at one end of the guide column 28 away from the rotating gear block 12, and a contact 2 216 is fixedly connected to one side of the support block 213. When the wire 1 25 is energized, the exposed metal part of the enameled wire is clamped by the metal clamp 26 to energize the enameled wire. When the insulating coating at the bend falls off, the support block 213 drives the contact 2 216 to collide with the contact 1 215 through the detection rod 23.
[0051] Specifically, during the bending process of the enameled wire by the bending machine, when the enameled wire is bent by the bending device 15, one side of the enameled wire is squeezed to form the inner side of the bend, and the other side is stretched to form the outer side of the bend. Due to the squeezing and stretching, the insulating paint layer on these two sides may fall off, causing the motor installed with this bus to have a short circuit problem when in use.
[0052] Therefore, the present invention solves this problem by setting a corresponding structure. The enameled wire is a flexible material, the detection rod 23 is a conductive material, a conveying port is opened in the middle of the rotating gear block 12, the conveying port on the rotating gear block 12 is connected to the inside of the discharge pipe 14, the conveying device is arranged behind the bending machine body 1, the laser paint removal device and the straightening device are respectively arranged between the bending machine body 1 and the conveying device, and the enameled wire passes through the conveying port on the rotating gear block 12 in a horizontal straight line after passing through the above devices, and passes through the discharge pipe 14, and a collection box is arranged below the discharge pipe 14;
[0053] During the operation of the bending machine, the enameled wire passes through the discharge pipe 14, and the exposed metal part of the enameled wire is first clamped by the metal clamp 26, and then the wire 25 is energized to energize the enameled wire. At this time, the output motor 17 is started, and the rotation direction of the bending device 15 on the rotating gear block 12 is adjusted by controlling the rotation of the output motor 17, so that the bending device 15 is moved to the direction required for bending, thereby bending the enameled wire;
[0054] During the bending process, if the insulating paint layer at the bending part falls off, the detection rod 23 in contact with the bending part is energized at this time, and the displacement of the support block 213 causes the contact point 1 215 to contact the contact point 2 216;
[0055] If the insulating paint layer at the bend has not fallen off, the enameled wire being conveyed continues to be bent, and the bend is inspected until it is bent into the desired shape. Then, the wire 25 is powered off, and the metal clip 26 is removed. The enameled wire after the bending is cut by the cutting device 16, and falls into the collection box arranged below the discharge pipe 14.
[0056] like Figure 2 , Figure 3 and Figure 5 As shown, the guide gears 13 in this embodiment are symmetrically arranged, and the output end of the output motor 17 is coaxially fixed to a guide gear 13 located at the top of the rotating groove 11.
[0057] Specifically, the symmetrically arranged guide gears 13 can limit the position of the rotating gear block 12 between the guide gears 13 while not affecting the rotation of the rotating gear block 12 .
[0058] like Figure 2 , Figure 3 , Figure 5 and Figure 8 As shown, the bending device 15 and the cutting device 16 of this embodiment are arranged at the same end of the rotating gear block 12, and the bending device 15 and the cutting device 16 are symmetrically arranged with the discharge pipe 14 as the center.
[0059] Specifically, the bending device 15 and the cutting device 16 are on the same side. Through the symmetrical arrangement of the bending devices 15, the two bending devices 15 can be bent in opposite directions; when the enameled wire needs to be cut, the relative movement of the cutting device 16 ensures that the cut portion is smooth after cutting.
[0060] like Figure 3 , Figures 5 to 7 and Fig. 9 As shown, the detection assembly of this embodiment also includes a manipulator 27, the manipulator 27 is fixedly connected to the surface of the bending machine body 1, a compression spring 22 is fixedly connected between the rotating gear block 12 and the wedge block 12, a guide groove 29 is opened inside the guide column 28, an electromagnet 210 is fixedly connected to one end of the guide groove 29 close to the rotating gear block 12, a magnet 211 is slidably connected inside the guide groove 29, and the magnet 211 and the electromagnet 210 When the electromagnet 210 is energized, the magnetic pole of the contact surface with the magnet 211 is opposite, and the end of the magnet 211 away from the electromagnet 210 is fixedly connected with a slide bar 212, and one end of the slide bar 212 is fixed to the end of the support block 213 close to the guide column 28, and a return spring 217 is fixedly connected between the magnet 211 and the inner wall of the guide groove 29 close to one end of the support block 213, and a wire 214 is fixedly connected between the detection rod 23 and the electromagnet 210.
[0061] Specifically, in the process of the metal clamp 26 clamping the exposed metal part of the enameled wire, the metal clamp 26 is driven to move by the manipulator 27 to perform the clamping operation;
[0062] When the detection rod 23 is energized, the electromagnet 210 is energized through the wire 214. At this time, the electromagnet 210 is magnetic. Since like poles attract each other and opposite poles repel each other, the magnet 211 slides in the guide groove 29, so that the magnet 211 is limited by the guide groove 29, so that the magnet 211 is displaced and elastically compresses the return spring 217. The displacement of the magnet 211 causes the support block 213 to be displaced synchronously through the slide rod 212.
[0063] The present invention first energizes the enameled wire, and when the insulating paint layer at the bend falls off, the detection rod 23 conducts electricity to displace the support block 213, thereby causing the second contact 216 to collide with the first contact 215. Through this process, the falling off of the insulating paint layer at the bend of the enameled wire is detected, and the subsequent operation is prepared by the collision between the second contact 216 and the first contact 215.
[0064] like Figure 6 and Figure 7 As shown, the contact point 1 215 in this embodiment is located on the movement trajectory of the contact point 2 216 .
[0065] Specifically, the support block 213 is displaced to drive the second contact 216 to collide with the first contact 215. The displacement of the support block 213 indicates that the insulating paint layer at the bend falls off, and the second contact 216 is in conflict with the first contact 215, preparing for subsequent operations.
[0066] like Figure 3 , Figure 4 and Figures 8 to 10 As shown, in this embodiment, a paint spraying assembly is arranged on the rotating gear block 12, and the paint spraying assembly includes a limiting groove 31, and the limiting groove 31 is arranged in the rotating gear block 12, and a cylindrical block 32 is rotatably connected in the limiting groove 31, and a guide rod 1 33 is fixedly connected at one end of the cylindrical block 32, and the guide rod 1 33 is eccentrically arranged on the cylindrical block 32, and a slider 34 is slidably connected in the limiting groove 31, and a guide groove 2 35 is arranged on the slider 34, and the guide rod 1 33 is slidably connected in the guide groove 2 35, and a guide rod 2 36 is fixedly connected to a side surface of the slider 34 close to the limiting groove 31, and a wedge-shaped groove is arranged on the top of the guide rod 2 36, and the wedge-shaped groove on the top of the guide rod 2 36 matches the shape of the wedge block 1 21.
[0067] Specifically, an external motor is provided on the cylindrical block 32. When the contact point 216 conflicts with the contact point 1 215, the output shaft of the external motor drives the cylindrical block 32 to rotate. Through the rotation of the cylindrical block 32, the guide rod 1 33 conflicts with the guide groove 2 35, so that the slider 34 only performs reciprocating linear motion under the limiting action of the limiting groove 31, and then the guide groove 2 35 is displaced in the direction close to the discharge pipe 14, so that the wedge groove at the top of the guide rod 2 36 conflicts with the wedge block 1 21, so that the wedge block 1 21 slides on the surface of the discharge pipe 14 with the displacement of the guide rod 2 36, and elastically compresses the compression spring 22. At this time, the detection rod 23 is no longer in contact with the bend.
[0068] like Figure 3 , Figure 4 and Figures 8 to 12As shown, the paint spraying assembly of this embodiment also includes a guide rod 37, the guide rod 37 is fixedly connected to the top of the slider 34, the guide rod 37 is slidably connected to a fixing plate 38 on the side close to the wedge block 1 21, the fixing plate 38 is fixedly connected to a piston cylinder 39, the piston cylinder 39 is slidably connected to a piston rod 310, one end of the piston rod 310 is fixedly connected to a wedge block 2 311, the bending device 15 is fixedly provided with a wedge block 312, the wedge block 312 is located at the wedge block On the motion trajectory of the second 311, the piston rod 310 is composed of a piston plate and a pumping rod, and a return spring 2 313 is fixedly connected between the side of the piston plate on the piston rod 310 close to the wedge block 2 311 and the inside of the piston cylinder 39, and a paint liquid tank 314 is fixedly connected to one side of the rotating gear block 12, and a conduit 315 is fixedly connected between the bottom end of the paint liquid tank 314 and the end of the piston cylinder 39 away from the wedge block 2 311, and a spray nozzle 316 is fixedly connected to the middle of the end of the piston cylinder 39 away from the wedge block 2 311.
[0069] Specifically, the width of the guide rod 2 36 matches that of the guide rod 37 , the spray nozzle 316 is connected to the piston cylinder 39 , a one-way valve is provided at the connection between the spray nozzle 316 and the piston cylinder 39 , so that the insulating paint liquid can only enter the spray nozzle 316 through the one-way valve , the conduit 315 connects the piston cylinder 39 and the paint liquid tank 314 , and a one-way valve is provided at the connection between the conduit 315 and the piston cylinder 39 , so that the insulating paint liquid in the paint liquid tank 314 can only enter the piston cylinder 39 through the one-way valve ;
[0070] During the displacement of the guide rod 2 36 , the guide rod 3 37 is displaced synchronously therewith. At this time, insulating paint liquid is installed between the side of the piston cylinder 39 away from the wedge block 2 311 and the piston plate on the piston rod 310, and the return spring 2 313 remains stationary. As the guide rod 37 is displaced, the spray nozzle 316 gradually approaches the bend until the wedge block 2 311 collides with the wedge block 312, so that the wedge block 2 311 pushes the piston rod 310 to move, and then the insulating paint liquid is sprayed out through the spray nozzle 316, and then the part of the insulating paint layer that falls off at the bend is covered to form a new insulating paint layer, until the guide rod 3 37 stops displacing, at this time the wedge block 2 311 is in contact with the wedge block 3 312, and the spray nozzle 316 is in the same straight line as the bend. At this time, the insulating paint layer sprayed out by the spray nozzle 316 completely covers the part of the insulating paint layer that falls off at the bend.
[0071] The present invention utilizes the interference between the wedge block 2 311 and the wedge block 312 to spray the insulating paint liquid in the piston cylinder 39 through the spray nozzle 316. At the same time, the wedge groove at the top of the guide rod 2 36 interferes with the wedge block 1 21 to make the wedge block 1 21 slide. In the process of spraying the insulating paint liquid by the spray nozzle 316, the wedge block 1 21 will not block the sprayed insulating paint liquid, so that the insulating paint liquid covers the part of the insulating paint layer that falls off at the bend, thereby forming a new insulating paint layer, so that the enameled wire formed by bending after cutting has better insulation, thereby preventing the motor installed with this bus from short-circuiting during use, and ensuring the stability of the product.
[0072] The present invention uses a detection component and a paint spraying component to ensure that the insulating paint layer of the enameled wire is re-covered with the insulating paint layer after the insulating paint layer falls off at the bending position during the bending process, thereby improving product quality and reducing production costs.
[0073] like Figures 2 to 12 As shown, the detection component and the paint spraying component on the rotating gear block 12 of this embodiment are symmetrically arranged with the discharge pipe 14 as the center.
[0074] Specifically, through its symmetrical arrangement, the extrusion and extension positions of the enameled wire bending parts are detected, and through the detection, the parts where the insulating paint layer falls off are sprayed with paint.
[0075] Working principle:
[0076] During the operation of the bending machine, the enameled wire passes through the discharge pipe 14, and the metal clamp 26 is first driven by the manipulator 27 to move, so that the metal clamp 26 clamps the exposed metal part of the enameled wire, and then the wire 25 is energized to energize the enameled wire. At this time, the output motor 17 is started, and the rotation direction of the bending device 15 on the rotating gear block 12 is adjusted by controlling the rotation of the output motor 17, so that the bending device 15 is moved to the direction required for bending, and then the enameled wire is bent;
[0077] During the bending process, if the insulating paint layer at the bending part falls off, the detection rod 23 that contacts the bending part is energized at this time, and the electromagnet 210 is energized through the wire 214. At this time, the electromagnet 210 has magnetism. Since the same poles attract each other and the opposite poles repel each other, the magnet 211 slides in the guide groove 29 at the same time, so that the magnet 211 is limited by the guide groove 29, so that the magnet 211 is displaced and elastically compresses the return spring 1 217. The displacement of the magnet 211 causes the support block 213 to be displaced synchronously through the slide bar 212, and the displacement of the support block 213 causes the contact 1 215 to contact the contact 2 216;
[0078] At this time, the output shaft of the external motor drives the cylindrical block 32 to rotate, and the cylindrical block 32 rotates, so that the guide rod 1 33 abuts against the guide groove 2 35, so that the slider 34 can only perform reciprocating linear motion under the limiting action of the limiting groove 31, and then the guide groove 2 35 is displaced in the direction close to the discharge pipe 14, so that the wedge groove at the top of the guide rod 2 36 abuts against the wedge block 1 21, so that the wedge block 1 21 slides on the surface of the discharge pipe 14 with the displacement of the guide rod 2 36, and elastically compresses the compression spring 22, and at this time the detection rod 23 is no longer in contact with the bending part;
[0079] During the displacement of the guide rod 2 36 , the guide rod 3 37 is displaced synchronously therewith. At this time, insulating paint liquid is installed between the side of the piston cylinder 39 away from the wedge block 2 311 and the piston sheet on the piston rod 310, and the return spring 2 313 remains stationary. As the guide rod 3 37 is displaced, the spray nozzle 316 gradually approaches the bend until the wedge block 2 311 conflicts with the wedge block 3 312, so that the wedge block 2 311 pushes the piston rod 310 to move, and then the insulating paint liquid is sprayed out through the spray nozzle 316, and then the part of the insulating paint layer at the bend that has fallen off is covered to form a new insulating paint layer, until the guide rod 3 37 is no longer displaced, at this time the wedge block 2 311 fits with the wedge block 3 312, and the spray nozzle 316 is on the same straight line as the bend, and at this time the insulating paint layer sprayed out by the spray nozzle 316 completely covers the part of the insulating paint layer at the bend that has fallen off;
[0080] If the insulating paint layer at the bend has not fallen off, the enameled wire being conveyed continues to be bent, and the bend is inspected until it is bent into the desired shape. Then, the wire 25 is powered off, and the metal clip 26 is removed. The enameled wire after the bending is cut by the cutting device 16, and falls into the collection box arranged below the discharge pipe 14.
[0081] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.
Claims
1. A method for processing a motor stator busbar, characterized in that: Specifically: Preparation: pulling one end of the enameled wire through a conveying device, then passing it through a straightening device and a laser paint removal device, and finally passing it through a discharge pipe (14); Bending: using a laser paint removal device, firstly, the surface insulating coating of the enameled wire is cut, so that the metal part is exposed at the cut part, and then the enameled wire is conveyed by a conveying device, and the exposed metal part passes through a discharge pipe (14), and the enameled wire passing through the bending machine is bent by a bending device (15), and the insulating coating at the bending part is detected to be off. When the bending is completed, the enameled wire at the output port of the discharge pipe (14) is cut by a cutting device (16), so that it falls into a collection box below the bending machine body (1); The bending is specifically as follows: a rotating groove (11) is provided on the bending machine body (1), a rotating gear block (12) is rotatably connected to the middle of the rotating groove (11), a guide gear (13) is rotatably connected to the top of the rotating groove (11), a discharge pipe (14) is fixedly connected to the middle of one end of the rotating gear block (12), a bending device (15) is provided at one end of the rotating gear block (12), a cutting device (16) is provided above the discharge pipe (14), and the cutting device (16) is fixed to the surface of one end of the rotating gear block (12), and an output motor (17) is fixedly connected to the side of the bending machine body (1) away from the discharge pipe (14), characterized in that: The bending machine body (1) and the rotating gear block (12) are provided with a detection component, the detection component comprising a fixed rod (24) fixed to a surface of one side of the bending machine body (1), the fixed rod (24) is fixedly connected to a wire 1 (25), the wire 1 (25) is fixedly connected to one end away from the fixed rod (24) and a metal clamp (26) is fixedly connected, the outer surface of the discharge pipe (14) is slidably connected to a wedge block 1 (21), the surface of the wedge block 1 (21) is fixedly connected to a detection rod (23), the surface of the detection rod (23) is in contact with the surface of the enameled wire, and one end of the detection rod (23) is fixedly connected to the wire. A contact point 1 (215) is fixedly connected, a guide column (28) is fixedly connected to one end surface of the rotating gear block (12), a support block (213) is slidably provided at one end of the guide column (28) away from the rotating gear block (12), and a contact point 2 (216) is fixedly connected to one side of the support block (213); when the wire 1 (25) is energized, the exposed metal part of the enameled wire is clamped by the metal clamp (26) to energize the enameled wire, and when the insulating coating at the bend falls off, the support block (213) drives the contact point 2 (216) to collide with the contact point 1 (215) through the detection rod (23); The detection component also includes a manipulator (27), the manipulator (27) being fixedly connected to the surface of the bending machine body (1), a compression spring (22) being fixedly connected between the rotating gear block (12) and the wedge block (21), a guide groove (29) being provided inside the guide column (28), an electromagnet (210) being fixedly connected to one end of the guide groove (29) close to the rotating gear block (12), a magnet (211) being slidably connected inside the guide groove (29), the magnet (211) being in contact with the electromagnet (210), and the electromagnet (210) being energized when contacting the magnet. The contact surfaces of the magnet (211) have the same magnetic poles, one end of the magnet (211) away from the electromagnet (210) is fixedly connected to a slide bar (212), one end of the slide bar (212) is fixed to an end of the support block (213) close to the guide column (28), a return spring (217) is fixedly connected between the magnet (211) and the inner wall of the guide groove (29) close to one end of the support block (213), a wire (214) is fixedly connected between the detection rod (23) and the electromagnet (210), and the contact point (215) is located on the movement trajectory of the contact point (216); Injection molding: The enameled wire cut after bending is placed into the injection mold, and taken out after injection molding to form the motor stator bus.
2. A method for processing a motor stator busbar according to claim 1, characterized in that: The guide gears (13) are symmetrically arranged, and the output end of the output motor (17) is coaxially fixed to a guide gear (13) located at the top of the rotating groove (11).
3. The method for processing a motor stator busbar according to claim 1, characterized in that: The bending device (15) and the cutting device (16) are arranged at the same end of the rotating gear block (12), and the bending device (15) and the cutting device (16) are both symmetrically arranged with the discharge pipe (14) as the center.
4. The method for processing a motor stator busbar according to claim 1, characterized in that: The rotating gear block (12) is provided with a paint spraying assembly, the paint spraying assembly comprising a limiting groove (31), the limiting groove (31) being provided in the rotating gear block (12), a cylindrical block (32) being rotatably connected in the limiting groove (31), a guide rod 1 (33) being fixedly connected to one end of the cylindrical block (32), a slider (34) being slidably connected in the limiting groove (31), a guide groove 2 (35) being provided on the slider (34), the guide rod 1 (33) being slidably connected in the guide groove 2 (35), and a guide rod 2 (36) being fixedly connected to a surface of a side of the slider (34) close to the limiting groove (31).
5. The method for processing a motor stator busbar according to claim 4, characterized in that: The guide rod 1 (33) is eccentrically arranged on the cylindrical block (32), and a wedge-shaped groove is provided on the top of the guide rod 2 (36). The wedge-shaped groove on the top of the guide rod 2 (36) matches the shape of the wedge-shaped block 1 (21).
6. The method for processing a motor stator busbar according to claim 4, characterized in that: The paint spraying assembly further comprises a guide rod three (37), wherein the guide rod three (37) is fixedly connected to the top of the slider (34), and a fixing plate (38) is slidably connected to a side of the guide rod three (37) close to the wedge block one (21), and a piston cylinder (39) is fixedly connected to the fixing plate (38), and a piston rod (310) is slidably connected inside the piston cylinder (39), and one end of the piston rod (310) is fixedly connected to the wedge block two (311), and a wedge block three (312) is fixedly provided on the bending device (15), and the wedge block three (312) is located at the wedge block two (31 1), the piston rod (310) is composed of a piston plate and a pumping rod, a return spring (313) is fixedly connected between the side of the piston plate on the piston rod (310) close to the second wedge block (311) and the inside of the piston cylinder (39), a paint liquid tank (314) is fixedly connected to one side of the rotating gear block (12), a guide tube (315) is fixedly connected between the bottom end of the paint liquid tank (314) and the end of the piston cylinder (39) away from the second wedge block (311), and a spray nozzle (316) is fixedly connected to the middle of the end of the piston cylinder (39) away from the second wedge block (311).
7. The method for processing a motor stator busbar according to claim 1, characterized in that: The detection component and the paint spraying component on the rotating gear block (12) are both symmetrically arranged with the discharge pipe (14) as the center.
Citation Information
Patent Citations
Production line of motor enameled wires
CN108123579A
Embedded injection molding or assembled high-voltage Busbar structure
CN112959601A
Device and method for detecting integrity of paint film of enameled wire
CN113252732A