Welding apparatus for motor ventilation slot plate and processing method thereof

Abstract

The application relates to a welding device for motor ventilation groove plates and a processing method thereof, which comprises a rack, a welding machine, a feeding mechanism, a feeding robot, a radial locking mechanism and an indexing rotating mechanism. The radial locking mechanism is suitable for clamping and positioning the workpiece on the table. The indexing rotating mechanism is suitable for driving the workpiece to rotate at a predetermined angle. The feeding mechanism is suitable for orderly arranging and conveying I-shaped steel to the feeding robot. The feeding robot is suitable for placing the I-shaped steel output by the feeding mechanism on the workpiece in the welding station. The welding machine welds the I-shaped steel and the workpiece in the welding station to obtain a ventilation groove plate. The I-shaped steel can be orderly arranged and output, and the output I-shaped steel can be quickly placed on the tooth part of the workpiece for welding. The workpiece can be quickly controlled to perform horizontal rotation and clamping action, so that the I-shaped steel can be quickly welded on each tooth part of the workpiece, and the welding efficiency of the motor ventilation groove plate is improved.

Description

Technical Field

[0001] This invention relates to the field of welding equipment, and more specifically to a welding device for motor ventilation slot plates and a processing method for the motor ventilation slot plates. Background Technology

[0002] For some large motors, which require improved heat dissipation, H-beams need to be spot-welded onto the stator and rotor laminations to obtain ventilation slots. Specifically, H-beams are welded onto each internal tooth of the stator laminations to obtain the stator ventilation slots, and H-beams are welded onto each external tooth of the rotor laminations to obtain the rotor ventilation slots.

[0003] Currently, welding equipment cannot automate the production of ventilation slot plates. Taking the processing of stator ventilation slot plates as an example, the I-beams cannot be output in an orderly manner, and it is impossible to place each I-beam into the inner teeth of the stator laminations one by one. Furthermore, the stator laminations cannot be automatically rotated and clamped during the welding process. All of these factors contribute to the low processing efficiency of electronic ventilation slot plates. For current I-beam feeding methods, see patent number CN202310607051.X, patent title: "An Automatic Welding Equipment for Motor Ventilation Slots and Its Usage Method." This method uses an arc-shaped feeding frame to slide the I-beams, which is extremely inefficient, often requiring manual unloading of each I-beam. Secondly, regarding stator lamination rotation and clamping, see existing patent application CN210010582U, "A Positioning Device for Resistance Welding of Motor Ventilation Slot Plates." In this patent, the rotation and clamping of the stator laminations still primarily rely on manual operation, resulting in low operational efficiency. Therefore, in summary, the existing motor ventilation slot plate welding equipment is not efficient in terms of feeding the I-beams, horizontal rotation of the stator laminations, and radial clamping, which affects the production and processing efficiency of motor ventilation slot plates. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a welding equipment for motor ventilation slot plates and a processing method for motor ventilation slot plates, thereby solving the technical problem of low production efficiency in the current processing of motor ventilation slot plates.

[0005] The technical solution adopted by this invention to solve its technical problem is:

[0006] First aspect:

[0007] A welding device for motor ventilation slot plates is provided, including:

[0008] The machine frame, welding machine, feeding mechanism, loading robot, radial locking mechanism, and indexing rotation mechanism;

[0009] The frame is equipped with a welding station, and the workpiece to be welded is suitable for being placed on the upper table of the frame.

[0010] The radial locking mechanism is suitable for clamping and positioning the workpiece on the table.

[0011] The indexing rotation mechanism is suitable for driving the workpiece to rotate at a predetermined angle.

[0012] The feeding mechanism is adapted to arrange and transport each I-beam into the feeding robot in an orderly manner.

[0013] The loading robot is adapted to place the I-beams output by the feeding mechanism onto the workpieces at the welding station;

[0014] The welding machine welds the I-beam at the welding station to the workpiece to obtain a ventilation slot plate.

[0015] Furthermore, the radial locking mechanism includes at least three locking elements and a synchronous drive mechanism;

[0016] The locking element includes

[0017] A pair of bearing housings are fixedly mounted on the frame, and a pair of guide rods are installed between the two bearing housings;

[0018] The first lead screw has two ends connected to two bearing seats via bearings, and its outer end is connected to the synchronous drive mechanism.

[0019] Nut seat, which mates with the first lead screw and the guide rod;

[0020] A sliding plate, the lower end of which is connected to a nut seat, and a positioning wheel is provided at the outer end and / or inner end of the sliding plate, the positioning wheel being adapted to radially abut against the workpiece;

[0021] The synchronous drive mechanism drives each slide plate to move synchronously, thereby causing each positioning wheel to radially clamp the workpiece.

[0022] Furthermore, the synchronous drive mechanism includes

[0023] The drive motor and the timing belt are connected to the first lead screw for transmission.

[0024] The drive motor drives each first lead screw to rotate synchronously via a synchronous belt.

[0025] Furthermore, the indexing rotation mechanism includes

[0026] A base, which is fixedly installed within the frame, includes an upper base and a lower base;

[0027] A lead screw nut, wherein the lead screw nut is fixedly connected to the lower seat via an outer ring;

[0028] Spline nut, the spline nut being fixedly connected to the upper seat via the outer ring;

[0029] A splined lead screw includes a lead screw section and a splined section. The lead screw section passes through a lead screw nut and is helically engaged with the inner ring of the lead screw nut. The splined section passes through a splined nut and is keyed to the inner ring of the splined nut.

[0030] A rotating arm is mounted on the upper end of a splined screw, and a guide pin is provided at one end of the rotating arm.

[0031] A lifting motor is fixed to the lower base and is connected to the inner ring of the lead screw nut, thereby driving the inner ring of the lead screw nut to rotate.

[0032] A rotary motor is fixed to the lower base and connected to the inner ring of a spline nut, thereby driving the inner ring of the spline nut to rotate.

[0033] During operation, the lifting motor drives the inner ring of the lead screw nut to rotate, which in turn drives the spline lead screw and the rotating arm to lift, thereby driving the guide pin to insert into the workpiece; then the rotary motor drives the inner ring of the spline nut to rotate, which in turn drives the spline lead screw and the rotating arm to rotate, and drives the workpiece to rotate through the guide pin.

[0034] Furthermore, a support is provided at the upper end of the rotating arm, through which the rotating arm passes, and a locking screw is provided on the support, the locking screw being adapted to lock the rotating arm.

[0035] Furthermore, the feeding mechanism includes

[0036] A feeding seat, wherein a seat cavity is formed inside the feeding seat;

[0037] A pair of partitions are arranged side by side in the seat cavity, forming a compartment between the two partitions and the bottom surface of the seat cavity. The front side of the compartment is a front material compartment for storing I-beams, and the rear side of the compartment is a delivery platform for placing I-beams to be discharged. The delivery platform moves back and forth in the compartment, delivering the I-beams received at the front position to the rear position to supply materials for the loading robot.

[0038] A pair of guide plates are respectively set inside the partition and located between the front hopper and the discharge platform. Guide grooves are opened in the guide plates. The two guide grooves are arranged opposite each other. During operation, the two ends of the I-beam are inserted into the guide grooves and arranged sequentially along the length of the guide groove. The inlet of the guide groove is horizontal and facing forward, and the outlet of the guide groove is vertical and downward facing the front of the discharge platform.

[0039] The material handling mechanism is installed in the compartment and located between the front hopper and the guide chute inlet. The material handling mechanism is adapted to sequentially feed the I-beams in the front hopper into the guide chute.

[0040] Furthermore, the material handling mechanism includes

[0041] A drive shaft is mounted on a feed seat and is driven to rotate by a motor.

[0042] Multiple material picking discs are axially distributed on the drive shaft, and multiple material picking ports are opened on the material picking discs;

[0043] The drive shaft drives each material receiving disc to rotate. Each material receiving disc simultaneously picks up the I-beam in the front hopper through the material receiving port, and as the material receiving disc rotates, it sends the I-beam upward into the guide groove.

[0044] Furthermore, the feeding seat is provided with an adjustment mechanism for adjusting the distance between the two partitions;

[0045] The adjustment mechanism includes

[0046] Multiple guide rods are provided, each of which is mounted on a feeding seat. The guide rods pass through the partition and are used to guide the partition to move left and right.

[0047] A bidirectional lead screw is mounted on a feeding seat and engages with two partitions respectively. The distance between the two partitions can be adjusted by rotating the bidirectional lead screw.

[0048] Furthermore, the bottom surface of the front hopper is an inclined surface, which faces the material dispensing tray.

[0049] The second aspect:

[0050] A method for processing a motor ventilation slot plate is provided, using the aforementioned welding equipment for motor ventilation slot plates, and including the following steps:

[0051] Step S01: Place the workpiece on the table of the machine frame, and lock the workpiece by driving each locking component through the synchronous drive mechanism;

[0052] In step S02, the I-beam is conveyed to the exit platform by the feeding mechanism. The exit platform moves the I-beam to the rear position, and then the loading robot takes the I-beam off the exit platform and places it into the teeth of the workpiece at the welding station.

[0053] Step S03: Weld the I-beam to the teeth of the workpiece using a welding machine;

[0054] Step S04: The locking parts are controlled by the synchronous drive mechanism to release the workpiece. Then the indexing rotation mechanism drives the workpiece to rotate by a predetermined angle, rotating another tooth on the workpiece to the welding station. Then each locking part locks the workpiece again.

[0055] Step S05: Repeat steps S02, S03 and S04 until I-beams are welded onto each tooth of the workpiece, and finally obtain the motor ventilation slot plate.

[0056] The beneficial effects of this invention are:

[0057] The machine can arrange and output I-beams in an orderly manner, and quickly place them onto the teeth of the workpiece for welding. It can rapidly control the horizontal rotation and clamping of the workpiece, allowing for quick welding of each tooth with the I-beams, thus improving the welding efficiency of the motor ventilation slot plate. A synchronous drive mechanism can simultaneously clamp and release the workpiece using various locking components. Combined with an indexing rotation mechanism, this drives each tooth of the workpiece sequentially through the welding station on the frame, improving the workpiece's flow efficiency at the welding station and ultimately increasing the production efficiency of the motor ventilation slot plate. Attached Figure Description

[0058] The invention will be further described below with reference to the accompanying drawings.

[0059] Figure 1 This is a schematic diagram of the stator ventilation slot plate;

[0060] Figure 2 This is a schematic diagram of welding equipment used for motor ventilation slot plates;

[0061] Figure 3 This is a schematic diagram of welding equipment (without a welding machine) for motor ventilation slot plates;

[0062] Figure 4 This is a schematic diagram of the radial locking mechanism;

[0063] Figure 5 This is a schematic diagram of the locking mechanism;

[0064] Figure 6 This is a schematic diagram of an indexing rotary mechanism;

[0065] Figure 7 This is a schematic diagram of the screw nut and spline nut installed on the spline screw;

[0066] Figure 8 This is a schematic diagram of a material loading robot;

[0067] Figure 9 This is a schematic diagram of the material supply mechanism;

[0068] Figure 10 This is a schematic diagram of the material handling mechanism;

[0069] Figure 11 This is a schematic diagram of the partition, guide plate, and output platform;

[0070] Figure 12 This is a schematic diagram of a welding machine;

[0071] Among them, 1. machine frame, 11. work surface, 12. welding station;

[0072] 2. Radial locking mechanism;

[0073] 21. Locking component; 211. Bearing housing; 212. First lead screw; 213. Nut seat; 214. Slide plate; 215. Positioning wheel;

[0074] 22. Synchronous drive mechanism; 221. Drive motor; 222. Synchronous belt; 223. Horizontal bevel gear; 224. Vertical bevel gear; 225. Auxiliary pulley.

[0075] 3. Indexing rotary mechanism, 31. Base, 311. Upper seat, 312. Lower seat, 313. Equal height shaft;

[0076] 32. Lead screw nut, 33. Spline nut, 34. Spline lead screw, 35. Support, 36. Rotary arm, 37. Guide pin, 38. Lifting motor, 39. Rotary motor;

[0077] 4. Feeding mechanism, 41. Feeding seat, 42. Front guide plate, 43. Partition plate, 44. Guide plate, 441. Upper guide bar, 442. Lower guide bar, 443. Front guide block, 444. Guide groove;

[0078] 45. Material handling mechanism; 451. Drive shaft; 452. Material handling tray;

[0079] 46. ​​Adjustment mechanism; 461. Guide rod; 462. Double-acting lead screw;

[0080] 47. Stepping out from the platform;

[0081] 5. Welding machine; 51. Welding base; 52. Upper copper busbar; 53. Lower welding head assembly; 54. Spot welding head;

[0082] 6. Feeding robot; 61. Four-axis robot; 62. Finger cylinder; 7. Stator ventilation slot plate; 71. Workpiece; 72. Tooth; 73. I-beam. Detailed Implementation

[0083] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0084] This application provides a welding device for motor ventilation slot plates, which will be described in detail below. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments of this application. Furthermore, in the following embodiments, the descriptions of each embodiment have their own emphasis; parts not described in detail in a certain embodiment can be referred to in the relevant descriptions of other embodiments.

[0085] To address the technical problem of low production efficiency of motor ventilation slot plates in the prior art, one embodiment of this application provides a welding device for motor ventilation slot plates. This is described in detail below.

[0086] like Figures 1 to 12 As shown, a welding device for motor ventilation slot plates includes...

[0087] Frame 1, welding machine 5, feeding mechanism 4, feeding robot 6, radial locking mechanism 2, and indexing rotation mechanism 3;

[0088] The frame 1 is provided with a welding station 12, and the workpiece 71 to be welded is suitable to be placed on the upper table 11 of the frame 1.

[0089] The radial locking mechanism 2 is adapted to clamp and position the workpiece 71 on the table 11;

[0090] The indexing rotation mechanism 3 is adapted to drive the workpiece 71 to rotate at a predetermined angle;

[0091] The feeding mechanism 4 is adapted to arrange and transport each I-beam 73 to the feeding robot 6 in an orderly manner.

[0092] The loading robot 6 is adapted to place the I-beam 73 output by the feeding mechanism 4 onto the workpiece 71 of the welding station 12;

[0093] The welding machine 5 welds the I-beam 73 at the welding station 12 to the workpiece 71 to obtain a ventilation slot plate.

[0094] Specifically, as an optional implementation method in this embodiment, such as Figures 2 to 5 As shown, the radial locking mechanism 2 includes at least three locking elements 21 and a synchronous drive mechanism 22;

[0095] In this embodiment, there are four locking components 21.

[0096] like Figure 5 As shown, the locking member 21 includes

[0097] A pair of bearing seats 211 are fixedly installed on the frame 1, and a pair of guide rods are installed between the two bearing seats 211.

[0098] The first lead screw 212 has two ends connected to two bearing seats 211 via bearings, and its outer end is connected to the synchronous drive mechanism 22.

[0099] Nut seat 213, which cooperates with the first lead screw 212 and the guide rod;

[0100] Slide plate 214, the lower end of which is connected to nut seat 213, and positioning wheel 215 is provided at the outer end and / or inner end of slide plate 214, the positioning wheel 215 being adapted to radially abut against workpiece 71;

[0101] The synchronous drive mechanism 22 drives each slide plate 214 to move synchronously, thereby driving each positioning wheel 215 to radially clamp the workpiece 71.

[0102] In this embodiment, two positioning wheels 215 are installed at the outer end of the slide plate 214, and the slide plate 214 clamps the outer diameter of the stator lamination through the two positioning wheels 215 at the outer end.

[0103] Specifically, see Figure 1 Each tooth 72 on the stator lamination is located in the middle because the positioning wheel 215 can only clamp the stator lamination from the outer wall.

[0104] A positioning wheel 215 is installed at the inner end of the slide plate 214. The slide plate 214 clamps the inner hole of the rotor plate through the positioning wheel 215 at the inner end. Specifically, the teeth 72 of the rotor plate are located on the outside, and the rotor plate has a round hole in the middle. The four slide plates 214 move outward through the positioning wheel 215 at the inner end to lock the rotor plate on the frame 1.

[0105] In this embodiment, the slide plate 214 is positioned below the table surface 11 of the frame 1, and the positioning wheel 21 is above the table surface 11, thereby achieving clamping of the workpiece 71 on the table surface 11.

[0106] In this embodiment, the first lead screw 212 and the nut seat 213 are a complete set and can be purchased directly from the market.

[0107] Specifically, as an optional implementation method in this embodiment, such as Figure 5 As shown, the synchronous drive mechanism 22 includes

[0108] The drive motor 221 and the timing belt 222 are connected to the first lead screw 212 for transmission.

[0109] The drive motor 221 drives each first lead screw 212 to rotate synchronously via the synchronous belt 222.

[0110] In this embodiment, the drive motor 221 is a servo motor.

[0111] In this embodiment, see Figure 4 and Figure 5As shown, a pair of bevel gears, namely a horizontal bevel gear 223 and a vertical bevel gear 224, are provided between the synchronous belt 222 and the first lead screw 212. The horizontal bevel gear 223 is fixed on the first lead screw 212, and the vertical bevel gear 224 is provided on the frame 1. The vertical bevel gear 224 is connected to the synchronous belt 222 through a pulley.

[0112] The drive motor 221 is vertically mounted on the frame 1. The drive motor 221 is connected to the synchronous belt 222 via a pulley. An auxiliary pulley 225 is also mounted on the frame 1. The entire synchronous belt 222 passes around six pulleys. The entire synchronous belt 222 has a concave structure on the frame 1, and the welding station is located exactly in the concave part of the synchronous belt 222.

[0113] The radial locking mechanism 2 operates as follows: When clamping the workpiece 71, after the workpiece 71 is placed on the table 11, the drive motor 221 drives the four first lead screws 212 to rotate synchronously, which in turn drives the four sliding positioning wheels 215 to move radially synchronously, thereby clamping the workpiece 71. When releasing the workpiece 71, the drive motor 221 simply rotates in the opposite direction.

[0114] Specifically, as an optional implementation method in this embodiment, such as Figure 6 and Figure 7 As shown, the indexing rotation mechanism 3 includes

[0115] Base 31, which is fixedly installed inside the frame 1, includes an upper base 311 and a lower base 312;

[0116] A lead screw nut 32 is fixedly connected to the lower seat 312 via an outer ring;

[0117] Spline nut 33, the spline nut 33 is fixedly connected to the upper seat 311 via the outer ring;

[0118] The spline screw 34 includes a screw part and a spline part. The screw part passes through the screw nut 32 and is helically engaged with the inner ring of the screw nut 32. The spline part passes through the spline nut 33 and is keyed to the inner ring of the spline nut 33.

[0119] Rotary arm 36 is mounted on the upper end of spline screw 34, and a guide pin 37 is provided at one end of the rotary arm 36.

[0120] The lifting motor 38 is fixed to the lower base 312 and is connected to the inner ring of the lead screw nut 32, thereby driving the inner ring of the lead screw nut 32 to rotate.

[0121] A rotary motor 39 is fixed to the lower base 312 and is connected to the inner ring of the spline nut 33, thereby driving the inner ring of the spline nut 33 to rotate.

[0122] In this embodiment, the spline screw 34 is a rod with threaded grooves and spline grooves. The spline screw 34 is an existing product and belongs to the standard parts.

[0123] Both the lead screw nut 32 and the spline nut 33 are standard parts. Both the lead screw nut 32 and the spline nut include an inner ring and an outer ring, and the whole is similar to a bearing. The outer ring of the bearing is fixed, and the inner ring rotates. A pulley is set on the inner ring. The rotating motor 39 is connected to the pulley through a belt and drives the inner ring to rotate.

[0124] The inner ring of the lead screw nut 32 has an internal thread, which allows the splined lead screw 34 to move up and down when the inner ring rotates. At this time, the spline part slides with the inner ring of the splined nut 33. The inner ring of the splined nut 33 does not rotate. After the lifting height of the splined lead screw 34 is determined, the inner ring of the splined nut 33 rotates. At this time, the splined lead screw 34 rotates through the inner ring of the splined nut 33. The splined lead screw 34 drives the upper and lower inner rings to rotate together. The inner ring does not interfere with the outer ring. The rotation of the splined lead screw 34 eventually drives the rotating arm 36 and the guide pin 37 to rotate, which in turn drives the workpiece 71 to rotate by a predetermined angle. The so-called predetermined angle is to drive the workpiece 71 to rotate one tooth 72 position in the circumferential direction, so that the tooth 72 of the workpiece 71 moves to the welding station 12 one after another.

[0125] In this embodiment, both the rotary motor 39 and the lifting motor 38 are servo motors, and the rotary motor 39 and the lifting motor 38 are located on both sides of the spline screw 34.

[0126] In this embodiment, the mounting position of the rotating arm 36 on the frame 1 is lower than that of the table 11. Only the guide pin 37 can move up and down on the table 11. When the workpiece 71 needs to be rotated, the guide pin 37 is raised and inserted into the workpiece 71. Then, the workpiece 71 is rotated by the guide pin 37. After the workpiece 71 is rotated into place, the guide pin 37 is reset downward.

[0127] Specifically, as an optional implementation method in this embodiment, such as Figure 6 As shown, a support 35 is provided at the upper end of the rotating arm 36, the rotating arm 36 passes through the support 35, and a locking screw is provided on the support 35, the locking screw being adapted to lock the rotating arm 36.

[0128] The base 31, spline screw 34 and support 35 are located in the middle of the table 11. The support 35 is moved laterally by the rotating arm 36, so that the radial position of the guide pin 37 on the table 11 can be adjusted, thereby making the welding equipment adaptable to workpieces 71 of different diameters.

[0129] In this embodiment, the base 31 is mounted on the frame 1 via the contour axis 313, and the base 31 is located below the platform 11.

[0130] Working principle of indexing rotation mechanism 3: When the guide pin 37 is lifted, the lifting motor 38 drives the inner ring of the screw nut 32 to rotate, which in turn drives the spline screw 34 and the rotating arm 36 to lift, thereby driving the guide pin 37 to insert into the workpiece 71. The lifting height is controlled by the lifting motor 38. The equipment can be equipped with corresponding sensors to detect the lifting height, thereby controlling the rotation angle of the lifting motor 38.

[0131] When the guide pin 37 rotates, the rotary motor 39 drives the inner ring of the spline nut 33 to rotate, which in turn drives the spline screw 34 and the rotating arm 36 to rotate. Through the guide pin 37, the workpiece 71 rotates one tooth 72 circumferential distance.

[0132] After workpiece 71 is rotated into position, lifting motor 38 rotates in the opposite direction to reset, and then rotary motor 39 rotates in the opposite direction to reset, ready for the next operation.

[0133] Specifically, as an optional implementation method in this embodiment, such as Figures 9 to 11 As shown, the feeding mechanism 4 includes

[0134] Feeding seat 41, wherein a seat cavity is formed inside the feeding seat 41;

[0135] A pair of partitions 43 are arranged side by side in the seat cavity, forming a compartment between the two partitions 43 and the bottom surface of the seat cavity. The front side of the compartment is a front material compartment for storing I-beams 73, and the rear side of the compartment is a discharge platform 47 for placing I-beams 73 to be discharged. The discharge platform 47 moves back and forth in the compartment and sends the I-beams 73 received at the front position to the rear position to supply material to the loading robot 6.

[0136] A pair of guide plates 44 are respectively arranged inside the partition plate 43 and between the front hopper and the discharge platform 47. The guide plates 44 have guide grooves 444. The two guide grooves 444 are arranged opposite each other. During operation, the two ends of the I-beam 73 are respectively inserted into the guide grooves 444 and arranged sequentially along the length of the guide grooves 444. The inlet of the guide grooves 444 is horizontal and facing forward, and the outlet of the guide grooves 444 is vertical and downward facing the front of the discharge platform 47.

[0137] Material handling mechanism 45 is disposed in the compartment and located between the front material bin and the inlet of the guide channel 444. The material handling mechanism 45 is adapted to sequentially feed the I-beams 73 in the front material bin into the guide channel 444.

[0138] In this embodiment, the feeding mechanism 4 is fixed to one side of the frame 1 by the feeding seat 41.

[0139] In this embodiment, as Figure 11 As shown, the guide plate 44 includes an upper guide bar 441, a lower guide bar 442, and a front guide block 443. A guide groove 444 is formed between the upper guide bar 441 and the lower guide bar 442. The front guide block 443 is located at the front end of the front guide bar and has an arc-shaped surface. This arc-shaped surface is adapted to the arc-shaped trajectory of the H-beam 73 rotating on the feeding tray 452. The H-beam 73 on the feeding tray 452 is guided into the guide groove 444 through the front guide block 443. The guide groove 444 includes a straight groove, an arc-shaped groove, and a vertical groove. The straight groove faces forward, and the vertical groove faces backward. After the H-beam 73 passes through the straight groove, the arc-shaped groove, and the vertical groove once, it is output downward.

[0140] Specifically, as an optional implementation method in this embodiment, such as Figure 10 As shown, the material handling mechanism 45 includes

[0141] A drive shaft 451 is mounted on a feed seat 41 and is driven to rotate by a motor.

[0142] Multiple material picking discs 452 are axially distributed on the drive shaft 451, and multiple material picking ports are opened on the material picking discs 452.

[0143] The drive shaft 451 drives each material picking plate 452 to rotate. Each material picking plate 452 simultaneously picks up the I-beam 73 in the front hopper through the material picking port, and as the material picking plate 452 rotates, it sends the I-beam 73 upward into the guide groove 444.

[0144] In this embodiment, the motor is a geared motor, which drives the drive shaft 451 to rotate.

[0145] The feeding ports of each feeding disc 452 are aligned in a straight line along the axial direction, so that the feeding ports of each feeding disc 452 can simultaneously engage the same I-beam 73.

[0146] After the I-beam 73 enters the guide groove 444, it is placed horizontally. Therefore, the height of the tool groove should be adapted to the horizontal dimension of the I-beam 73. As the I-beam 73 moves backward in the guide groove 444, it eventually becomes vertically output, so that the I-beam 73 falling onto the exit table 47 is in a vertical state. That is, the posture of the I-beam 73 on the exit table 47 is the same as the posture placed on the workpiece 71.

[0147] In this embodiment, the so-called horizontal placement of the I-beam 73 means that the I-beam 73 is placed in an "H" shape, and vertical placement means that the I-beam 73 is placed in an "I" shape.

[0148] Specifically, as an optional implementation method in this embodiment, such as Figure 10 As shown, the feeding seat 41 is provided with an adjustment mechanism 46 for adjusting the distance between the two partitions 43;

[0149] The adjustment mechanism 46 includes

[0150] Three guide rods 461 are provided on the feeding seat 41. The guide rods 461 pass through the partition 43 and are used to guide the partition 43 to move left and right.

[0151] A bidirectional lead screw 462 is mounted on the feed seat 41. The bidirectional lead screw 462 is respectively engaged with two partitions 43. The distance between the two partitions 43 can be adjusted by rotating the bidirectional lead screw 462.

[0152] The adjusting mechanism 46 adjusts the distance between the two partitions 43 so that the compartment can be adapted to I-beams 73 of different lengths. The double-acting screw 462 is driven to rotate by the handwheel.

[0153] Specifically, as an optional implementation method in this embodiment, such as Figure 10 As shown, the bottom surface of the front hopper is an inclined surface, which faces the material dispensing plate 452.

[0154] In this embodiment, as Figure 9 As shown, the feeding seat 41 includes a base plate, a pair of side plates and a front guide plate 42. The seat cavity is composed of the base plate, a pair of side plates and the front guide plate 42. The front guide plate 42 is inclined, and the so-called inclined surface is the bottom surface of the front guide plate 42.

[0155] The front hopper, relying on its inclined surface, allows the I-beams 73 inside to move towards the picking plate 452, enabling the picking plate 452 to pick up the I-beams 73 inside the hopper. As the I-beams 73 on the picking plate 452 enter the guide groove 444, they detach from the picking port of the picking plate 452. As the picking plate 452 rotates continuously, it carries the picking plate 452 into the guide groove 444 one after another. The I-beams 73 in the guide groove 444 are continuously pushed backward until the last I-beam 73 is delivered to the exit platform 47.

[0156] In this embodiment, the de-rowing platform 47 is pushed by a slide cylinder.

[0157] The output platform 47 has three slots. When the output platform 47 is in the front position, the three slots are exactly below the outlet of the guide channel 444. The I-beam 73 output from the guide channel 444 can fall into the slots. Then the output platform 47 can carry the I-beam 73 to the rear position for the feeding robot 6 to pick up.

[0158] The distance between the upper end of the exit platform 47 and the guide groove 444 needs to be controlled in advance so that only one I-beam 73 can be placed in the slot at a time. The I-beam 73 at the outlet of the guide groove 444 can only fall into the slot when the exit platform 47 is in the front position and is in an empty state. Otherwise, the I-beam 73 at the outlet of the guide groove 444 can only slide and contact the upper end face of the exit platform 47. After the exit platform 47 leaves the front position, the I-beam 73 in the guide groove 444 cannot leave the guide groove 444.

[0159] Specifically, as an optional implementation method in this embodiment, such as Figure 9 As shown, the loading robot 6 includes a four-axis robot 61 and a finger cylinder 62. The finger cylinder 62 is connected to a pair of grippers, which are used to grip and remove the I-beam 73 from the column 47. The four-axis robot 61 is responsible for sending the I-beam 73 to the tooth 72 of the workpiece 71 at the welding station 12.

[0160] Specifically, as an optional implementation method in this embodiment, such as Figure 12 As shown, welding machine 5 includes

[0161] The welding base 51 can be fixed or configured with a pair of slide rails for horizontal movement.

[0162] The upper pressure head assembly includes a cylinder, an insulating plate, a copper busbar connecting plate, and an upper copper busbar 52. The upper end of the upper copper busbar 52 is fixed to the copper busbar connecting plate, and the copper busbar connecting plate is connected to the cylinder push rod through the insulating plate.

[0163] Multiple lower welding head assemblies 53 are located below the upper pressure head assembly and fixed to the welding base 51;

[0164] In this embodiment, there are 7 lower welding heads.

[0165] Each lower welding head assembly 53 includes a cylinder, a pad, a welding head seat, and a spot welding head 54. The spot welding head 54 is fixed on the welding head seat, which is set on the pad and then connected to the cylinder push rod through the pad. Each independent lower welding head assembly 53 can drive its respective spot welding head 54 to lift according to actual needs to complete the welding.

[0166] During welding operations, each lower welding head assembly 53 is located below the workpiece 71 of welding station 12, and the upper pressure head assembly is located above the workpiece 71 of welding station 12. After the I-beam 73 is placed on the workpiece 71, the upper copper busbar 52 moves downward to press the I-beam 73 onto the workpiece 71. Then, the lower welding head assembly 53 located below the I-beam 73 is raised to achieve spot welding of the I-beam 73.

[0167] The principle of welding machine 5 is existing. The welding machine 5 of this patent application has optimized the structure. The upper part is the upper copper busbar 52, and the lower part is multiple spot welding heads 54. Each spot welding head 54 can be raised and lowered independently by a cylinder. During operation, a current path is formed between the upper copper busbar 52, spot welding heads 54, I-beam 73 and workpiece 71, thereby welding the I-beam 73 to the tooth 72 of workpiece 71.

[0168] The motor ventilation slot plate can be either the stator ventilation slot plate 7 or the rotor ventilation slot plate. See stator ventilation slot plate 7 for details. Figure 1 ,

[0169] This embodiment provides a method for processing a stator ventilation slot plate 7, using the above-mentioned welding equipment for motor ventilation slot plates. The workpiece 71 involved in this processing method is a stator lamination.

[0170] The processing method includes the following steps:

[0171] Step S01: Place the workpiece 71 on the table 11 of the frame 1, and lock the workpiece 71 by driving each locking component 21 through the synchronous drive mechanism 22.

[0172] In step S02, the I-beam 73 is conveyed to the output platform 47 by the feeding mechanism 4. The output platform 47 moves the I-beam 73 to the rear position. Then, the loading robot 6 takes the I-beam 73 off the output platform 47 and places it on the tooth 72 of the workpiece 71 at the welding station 12.

[0173] Step S03: The I-beam 73 is welded to the tooth 72 of the workpiece 71 using the welding machine 5;

[0174] In step S04, the locking member 21 is controlled by the synchronous drive mechanism 22 to release the workpiece 71. Then, the indexing rotation mechanism 3 drives the workpiece 71 to rotate by a predetermined angle, and rotates another tooth 72 on the workpiece 71 to the welding station 12. Then, each locking member 21 locks the workpiece 71 again.

[0175] Step S05: Repeat steps S02, S03 and S04 until I-beams 73 are welded onto each tooth 72 of workpiece 71, and finally obtain the motor ventilation slot plate.

[0176] All the devices selected in this application (parts whose specific structures are not specified) are general standard parts or parts known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0177] In the description of the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0178] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0179] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. Furthermore, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Additionally, the shown or discussed mutual couplings, direct couplings, or communication connections may be through some communication interfaces; indirect couplings or communication connections between devices or units may be electrical, mechanical, or other forms.

[0180] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0181] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. Based on the above-described preferred embodiments of the present invention, and through the above description, those skilled in the art can make various changes and modifications without departing from the technical concept of the present invention. The technical scope of the present invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A welding device for motor ventilation slot plates, characterized in that, include The frame (1), welding machine (5), feeding mechanism (4), loading robot (6), radial locking mechanism (2) and indexing rotation mechanism (3); The frame (1) is provided with a welding station (12), and the workpiece (71) to be welded is suitable to be placed on the upper table (11) of the frame (1). The radial locking mechanism (2) is adapted to clamp and position the workpiece (71) on the table (11); The indexing rotation mechanism (3) is adapted to drive the workpiece (71) to rotate at a predetermined angle; The feeding mechanism (4) is adapted to arrange and transport each I-beam (73) to the feeding robot (6) in an orderly manner; The loading robot (6) is adapted to place the I-beam (73) output by the feeding mechanism (4) onto the workpiece (71) of the welding station (12); The welding machine (5) welds the I-beam (73) at the welding station (12) to the workpiece (71) to obtain the ventilation slot plate; The indexing rotation mechanism (3) includes The base (31) is fixedly installed inside the frame (1), and the base (31) includes an upper seat (311) and a lower seat (312). A lead screw nut (32) is fixedly connected to the lower seat (312) via an outer ring; Spline nut (33), the spline nut (33) is fixedly connected to the upper seat (311) via the outer ring; The spline screw (34) includes a screw part and a spline part. The screw part passes through the screw nut (32) and is helically engaged with the inner ring of the screw nut (32). The spline part passes through the spline nut (33) and is keyed to the inner ring of the spline nut (33). Rotary arm (36), the rotary arm (36) is set on the upper end of the spline screw (34), and a guide pin (37) is set on one end of the rotary arm (36). A lifting motor (38) is fixed on the lower seat (312). The lifting motor (38) is connected to the inner ring of the lead screw nut (32), thereby driving the inner ring of the lead screw nut (32) to rotate. A rotary motor (39) is fixed on the lower seat (312). The rotary motor (39) is connected to the inner ring of the spline nut (33), thereby driving the inner ring of the spline nut (33) to rotate. During operation, the lifting motor (38) drives the inner ring of the lead screw nut (32) to rotate, thereby driving the spline lead screw (34) and the rotating arm (36) to lift, thereby driving the guide pin (37) to insert into the workpiece (71); then the rotary motor (39) drives the inner ring of the spline nut (33) to rotate, thereby driving the spline lead screw (34) and the rotating arm (36) to rotate, and driving the workpiece (71) to rotate through the guide pin (37).

2. The welding equipment for motor ventilation slot plates according to claim 1, characterized in that, The radial locking mechanism (2) includes at least three locking elements (21) and a synchronous drive mechanism (22); The locking element (21) includes A pair of bearing housings (211) are fixedly installed on the frame (1), and a pair of guide rods are installed between the two bearing housings (211); The first lead screw (212) has two ends connected to two bearing seats (211) via bearings, and its outer end is connected to the synchronous drive mechanism (22). Nut seat (213), which cooperates with the first lead screw (212) and the guide rod; A sliding plate (214) is connected at its lower end to a nut seat (213). A positioning wheel (215) is provided at the outer end and / or inner end of the sliding plate (214). The positioning wheel (215) is adapted to radially abut against the workpiece (71). The synchronous drive mechanism (22) drives each slide plate (214) to move synchronously, thereby driving each positioning wheel (215) to radially clamp the workpiece (71).

3. The welding equipment for motor ventilation slot plates according to claim 2, characterized in that, The synchronous drive mechanism (22) includes The drive motor (221) and the timing belt (222) are connected to the first lead screw (212) for transmission. The drive motor (221) drives each first lead screw (212) to rotate synchronously via the synchronous belt (222).

4. The welding equipment for motor ventilation slot plates according to claim 1, characterized in that, The upper end of the rotating arm (36) is provided with a support (35), the rotating arm (36) passes through the support (35), and a locking screw is provided on the support (35) to lock the rotating arm (36).

5. The welding equipment for motor ventilation slot plates according to claim 1, characterized in that, The feeding mechanism (4) includes A feeding seat (41) is provided, wherein a seat cavity is provided inside the feeding seat (41); A pair of partitions (43) are arranged side by side in the seat cavity. The two partitions (43) and the bottom surface of the seat cavity form a compartment. The front side of the compartment is a front material compartment for storing I-beams (73), and the rear side of the compartment is a discharge platform (47) for placing I-beams (73) to be discharged. The discharge platform (47) moves back and forth in the compartment. The discharge platform (47) will send the I-beams (73) received in the front position to the rear position to supply materials to the loading robot (6). A pair of guide plates are respectively set inside the partition (43) and located between the front hopper and the outlet platform (47). The guide plates are provided with guide grooves (444). The two guide grooves (444) are arranged opposite each other. During operation, the two ends of the I-beam (73) are inserted into the guide grooves (444) respectively and arranged in sequence along the length of the guide grooves (444). The inlet of the guide grooves (444) is horizontal and facing forward, and the outlet of the guide grooves (444) is vertical and downward facing the front of the outlet platform (47). Material handling mechanism (45) is provided in the compartment and located between the front hopper and the inlet of the guide chute (444). The material handling mechanism (45) is adapted to feed the I-beams (73) in the front hopper into the guide chute (444) in sequence.

6. The welding equipment for motor ventilation slot plates according to claim 5, characterized in that, The material handling mechanism (45) includes A drive shaft (451) is mounted on a feed seat (41) and is driven to rotate by a motor. Multiple material picking discs (452) are axially distributed on the drive shaft (451), and multiple material picking ports are opened on the material picking discs (452); The drive shaft (451) drives each material picking plate (452) to rotate. Each material picking plate (452) simultaneously picks up the I-beam (73) in the front hopper through the material picking port, and as the material picking plate (452) rotates, it sends the I-beam (73) upward into the guide groove (444).

7. The welding equipment for motor ventilation slot plates according to claim 5, characterized in that, The feeding seat (41) is provided with an adjustment mechanism (46) for adjusting the distance between the two partitions (43). The adjustment mechanism (46) includes Multiple guide rods (461) are provided on the feed seat (41). The guide rods (461) pass through the partition (43) and are used to guide the partition (43) to move left and right. A bidirectional lead screw (462) is mounted on a feed seat (41). The bidirectional lead screw (462) is engaged with two partitions (43) respectively. The distance between the two partitions (43) can be adjusted by rotating the bidirectional lead screw (462).

8. The welding equipment for motor ventilation slot plates according to claim 6, characterized in that, The bottom surface of the front hopper is an inclined surface, which faces the material dispensing tray (452).

9. A method for processing a motor ventilation slot plate, characterized in that, The welding equipment for motor ventilation slot plates according to any one of claims 1-8 includes the following steps: Step S01: Place the workpiece (71) on the table (11) of the frame (1), and lock the workpiece (71) by driving each locking component (21) through the synchronous drive mechanism (22); In step S02, the I-beam (73) is conveyed to the exit platform (47) by the feeding mechanism (4). The exit platform (47) moves the I-beam (73) to the rear position. Then, the loading robot (6) takes the I-beam (73) off the exit platform (47) and places it on the tooth (72) of the workpiece (71) at the welding station (12). Step S03: Weld the I-beam (73) to the tooth (72) of the workpiece (71) using a welding machine (5). In step S04, the locking member (21) is controlled by the synchronous drive mechanism (22) to release the workpiece (71). Then, the indexing rotation mechanism (3) drives the workpiece (71) to rotate by a predetermined angle, and rotates another tooth (72) on the workpiece (71) to the welding station (12). Then, each locking member (21) locks the workpiece (71) again. In step S05, steps S02, S03 and S04 are repeated until I-beams (73) are welded onto each tooth (72) of the workpiece (71), and finally the motor ventilation slot plate is obtained.

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