Motor ventilation slot plate welding positioning mechanism

Abstract

The utility model relates to a motor ventilation slot plate welding positioning mechanism, including radial locking mechanism and index rotating mechanism, radial locking mechanism includes at least three locking pieces and synchronous drive mechanism, synchronous drive mechanism is connected with each locking piece respectively, and is suitable for driving locking wheel on each locking piece to do synchronous radial movement on the rack mesa, to realize to the workpiece radial clamping, index rotating mechanism is suitable for driving workpiece to do horizontal rotation on the rack mesa. Each locking wheel can synchronously clamp the workpiece in the radial direction, prevent the workpiece from horizontal position deviation in the clamping process, and the index rotating mechanism can drive the guide nail to ascend and descend and rotate horizontally, quickly drive the workpiece to rotate, make each tooth portion of workpiece rotate to the welding station of rack in proper order.

Description

Technical Field

[0001] This utility model relates to the field of welding equipment, specifically to a welding positioning mechanism for motor ventilation slot plates. Background Technology

[0002] Motor ventilation slots include stator ventilation slots or rotor ventilation slots. Taking stator ventilation slots as an example, I-beams need to be welded to each tooth of the stator laminations to form heat dissipation space between adjacent stator laminations.

[0003] For large stator ventilation slot plates with dozens or even hundreds of teeth, the position of the stator laminations needs to be adjusted once for each tooth when welding the I-beam. Currently, the position adjustment of the stator laminations still relies on manual operation. See the prior patent, CN210010582U, a positioning device for resistance welding of motor ventilation slot plates. In this patent, the positioning and clamping of the stator laminations mainly relies on manual operation, which is not efficient. The reduced positioning efficiency of the stator laminations ultimately leads to a reduction in the overall production efficiency of the stator ventilation slot plates. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a welding positioning mechanism for motor ventilation slot plates, thereby solving the current technical problem of low positioning and clamping efficiency of motor ventilation slot plates.

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

[0006] A welding positioning mechanism for a motor ventilation slot plate is provided, including:

[0007] Radial locking mechanism and indexing rotary mechanism;

[0008] The radial locking mechanism includes at least three locking elements and a synchronous drive mechanism. The synchronous drive mechanism is connected to each locking element and is adapted to drive the locking wheels on each locking element to move synchronously radially on the machine frame table to achieve radial clamping of the workpiece.

[0009] The indexing rotation mechanism is suitable for driving the workpiece to rotate horizontally on the machine frame table.

[0010] Furthermore, the locking element includes

[0011] A pair of bearing housings are fixedly mounted on the frame, and a pair of guide rods are installed between the two bearing housings;

[0012] 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.

[0013] Nut seat, which mates with the first lead screw and the guide rod;

[0014] A sliding plate, the lower end of which is connected to a nut seat, and a locking wheel is provided at the outer end of the sliding plate and / or the locking wheel is adapted to radially abut against the workpiece;

[0015] The synchronous drive mechanism drives each slide plate to move synchronously, thereby causing each locking wheel to radially clamp the workpiece.

[0016] Furthermore, the synchronous drive mechanism includes

[0017] Synchronous motor, which is fixedly mounted on the frame;

[0018] At least one pair of bevel gear sets, the bevel gear sets including a horizontal bevel gear and a vertical bevel gear, the horizontal bevel gear being fixed to the end of a first lead screw, and the vertical bevel gear being mounted on a frame;

[0019] A synchronous belt, which is connected to a synchronous motor and various vertical bevel gears.

[0020] Furthermore, the indexing rotation mechanism includes

[0021] A base, which is fixedly mounted on the frame, is provided with a lead screw nut and a spline nut;

[0022] A splined lead screw, comprising a splined portion and a lead screw portion, wherein the splined portion passes through the inner ring of a splined nut, and the lead screw portion passes through the inner ring of a lead screw nut;

[0023] A rotating arm is laterally mounted on the upper end of a splined screw, and a guide pin is provided at one end of the rotating arm;

[0024] A lifting motor is fixed on a base and connected to the inner ring of a lead screw nut, thereby driving the inner ring of the lead screw nut to rotate.

[0025] A rotary motor is fixed on a base and connected to the inner ring of a spline nut, thereby driving the inner ring of the spline nut to rotate.

[0026] 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.

[0027] Furthermore, the base includes an upper base, a lower base, and multiple support columns, with each support column disposed between the upper base and the lower base;

[0028] The spline nut is fixed to the upper seat via the outer ring, and the lead screw nut is fixed to the lower seat via the outer ring;

[0029] The lifting motor and the rotary motor are mounted on the lower seat.

[0030] Furthermore, the base is mounted on the frame via four equal-height shafts.

[0031] The beneficial effects of this utility model are:

[0032] Each locking wheel can synchronously clamp the workpiece radially to prevent the workpiece from shifting horizontally during clamping. The indexing rotation mechanism can drive the guide pin to move up and down and rotate horizontally, quickly rotating the workpiece so that each tooth of the workpiece rotates sequentially to the welding station of the machine frame. Attached Figure Description

[0033] The present invention will be further described below with reference to the accompanying drawings.

[0034] Figure 1 This is a schematic diagram of the welding equipment for motor ventilation slot plates;

[0035] Figure 2 This is a schematic diagram of the welding positioning mechanism on the machine frame;

[0036] Figure 3 This is a schematic diagram of the welding positioning mechanism;

[0037] Figure 4 This is a schematic diagram of the radial locking mechanism;

[0038] Figure 5 This is a schematic diagram of the locking mechanism;

[0039] Figure 6 This is a schematic diagram of an indexing rotary mechanism;

[0040] Figure 7 This is a structural diagram of the base and the splined lead screw;

[0041] Figure 8 This is a structural diagram of the splined lead screw, lead screw nut, and splined nut;

[0042] Figure 9 This is a schematic diagram of the stator ventilation slot plate;

[0043] 1. Frame; 11. Tabletop; 12. Welding station; 13. Welding machine; 14. Material feeding mechanism;

[0044] 2. Radial locking mechanism;

[0045] 21. Bearing housing; 22. First lead screw; 23. Nut seat; 24. Slide plate; 25. Locking wheel;

[0046] 3. Synchronous drive mechanism; 31. Synchronous motor; 32. Synchronous belt; 33. Horizontal bevel gear; 34. Vertical bevel gear; 35. Auxiliary pulley.

[0047] 4. Indexing rotary mechanism, 41. Base, 411. Upper seat, 412. Lower seat;

[0048] 42. Lead screw nut; 43. Spline nut; 44. Spline lead screw; 45. Lifting motor; 46. Rotary motor; 47. Equal height shaft;

[0049] 5. Swing arm; 51. Support; 52. Guide pin;

[0050] 6. Stator ventilation slot plate; 61. Workpiece; 62. Tooth section; 63. I-beam. Detailed Implementation

[0051] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0052] This application provides a welding positioning mechanism for a motor ventilation slot plate, 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, 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.

[0053] To address the technical problem of low positioning and clamping efficiency of motor ventilation slot plates in existing technologies, one embodiment of this application provides a welding positioning mechanism for motor ventilation slot plates. This is described in detail below.

[0054] like Figures 2 to 8 As shown, a welding positioning mechanism for a motor ventilation slot plate includes...

[0055] Radial locking mechanism 2 and indexing rotation mechanism 4;

[0056] The radial locking mechanism 2 includes at least three locking components and a synchronous drive mechanism 3. The synchronous drive mechanism 3 is connected to each locking component and is adapted to drive the locking wheels 25 on each locking component to move synchronously radially on the table 11 of the frame 1, so as to achieve radial clamping of the workpiece 61.

[0057] The indexing rotation mechanism 4 is adapted to drive the workpiece 61 to rotate horizontally on the table 11 of the frame 1.

[0058] Specifically, as an optional implementation method in this embodiment, such as Figures 3 to 5 As shown, the locking element includes

[0059] A pair of bearing seats 21 are fixedly installed on the frame 1, and a pair of guide rods are installed between the two bearing seats 21.

[0060] The first lead screw 22 has two ends connected to two bearing seats 21 via bearings, and its outer end is connected to the synchronous drive mechanism 3.

[0061] Nut seat 23, which cooperates with the first lead screw 22 and the guide rod;

[0062] Slide plate 24, the lower end of which is connected to nut seat 23, and a locking wheel 25 is provided at the outer end of slide plate 24 and / or the locking wheel 25 is adapted to radially abut against workpiece 61;

[0063] The synchronous drive mechanism 3 drives each slide plate 24 to move synchronously, thereby driving each locking wheel 25 to radially clamp the workpiece 61.

[0064] When workpiece 61 is a stator lamination, the stator lamination is clamped by moving the locking wheel 25 from the outer end of the slide plate 24 toward the center. When workpiece 61 is a rotor lamination, the rotor lamination is clamped by moving the locking wheel 25 from the inner end of the slide plate 24 outward.

[0065] In this embodiment, the height of the slide plate 24 on the frame 1 is lower than that of the table 11 of the frame 1. The workpiece 61 is placed on the table 11, and each locking wheel 25 extends upward from the table 11. By controlling the movement of the slide plate 24, the locking wheels 25 are driven to move above the table 11 to clamp the workpiece 61.

[0066] In this embodiment, there are four locking components, see [link / reference]. Figures 2 to 4 .

[0067] Specifically, as an optional implementation method in this embodiment, such as Figure 4 As shown, the synchronous drive mechanism 3 includes

[0068] Synchronous motor 31 is fixedly mounted on frame 1;

[0069] Four pairs of bevel gear sets, each bevel gear set including a horizontal bevel gear 33 and a vertical bevel gear 34. The horizontal bevel gear 33 is fixed to the end of the first lead screw 22, and the vertical bevel gear 34 is mounted on the frame 1.

[0070] Synchronous belt 32 is connected to synchronous motor 31 and each vertical bevel gear 34.

[0071] Synchronous motor 31 is a servo motor. Synchronous motor 31 is connected to synchronous belt 32 via pulleys. Four vertical bevel gears 34 are also connected to synchronous belt 32 via pulleys. In addition, an auxiliary pulley 35 is used. See [link to documentation]. Figures 2 to 4The synchronous belt 32 is connected to a pulley, forming a concave structure, and the welding station 12 of the frame 1 is located inside the concave opening.

[0072] Specifically, as an optional implementation method in this embodiment, such as Figures 6 to 8 As shown, the indexing rotation mechanism 4 includes

[0073] A base 41 is fixedly mounted on the frame 1, and a lead screw nut 42 and a spline nut 43 are mounted on the base 41.

[0074] Splined screw 44, the splined screw 44 includes a spline portion and a screw portion, the spline portion passes through the inner ring of the splined nut 43, and the screw portion passes through the inner ring of the screw nut 42;

[0075] Rotary arm 5, which is laterally disposed on the upper end of spline screw 44, and a guide pin 52 is provided at one end of the rotating arm 5;

[0076] The lifting motor 45 is fixed on the base 41 and is connected to the inner ring of the lead screw nut 42, thereby driving the inner ring of the lead screw nut 42 to rotate.

[0077] A rotary motor 46 is fixed on a base 41 and is connected to the inner ring of a spline nut 43, thereby driving the inner ring of the spline nut 43 to rotate.

[0078] In this embodiment, both the rotary motor 46 and the lifting motor 45 are servo motors. The rotary motor 46 and the lifting motor 45 are located on both sides of the spline screw 44 to ensure that the spline screw 44 is subjected to balanced force on the left and right sides.

[0079] In this embodiment, the spline screw 44 is a rod, that is, it has a spline groove and a trapezoidal thread groove. The spline screw 44 is an existing product and belongs to the standard part.

[0080] Both the lead screw nut 42 and the spline nut 43 are standard parts. Both the lead screw nut 42 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 46 is connected to the pulley through a belt and drives the inner ring to rotate.

[0081] The inner ring of the lead screw nut 42 has a trapezoidal internal thread, which allows the splined lead screw 44 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 43. The inner ring of the splined nut 43 does not rotate. After the lifting height of the splined lead screw 44 is determined, the inner ring of the splined nut 43 rotates. At this time, the splined lead screw 44 rotates through the inner ring of the splined nut 43. The splined lead screw 44 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 44 eventually drives the rotating arm 5 and the guide pin 52 to rotate, and drives the workpiece 61 to rotate by a predetermined angle. The so-called predetermined angle is to drive the workpiece 61 to rotate one tooth 62 position in the horizontal direction, so that the tooth 62 of the workpiece 61 moves to the welding station 12 one after another.

[0082] Specifically, as an optional implementation method in this embodiment, such as Figure 6 As shown, a support 51 is provided at the upper end of the rotating arm 5, the rotating arm 5 passes through the support 51, and a locking screw is provided on the support 51, the locking screw being suitable for locking the rotating arm 5.

[0083] Loosen the locking screw and adjust the horizontal position of the rotating arm 5 to adjust the horizontal position of the guide pin 52 to accommodate workpieces 61 of different diameters.

[0084] In this embodiment, the mounting position of the rotating arm 5 on the frame 11 is lower than that of the table 11. Only the guide pin 52 can move up and down on the table 11. When the workpiece 61 needs to be rotated, the guide pin 52 is raised and inserted into the workpiece 61. Then, the workpiece 61 is rotated by the guide pin 52. After the workpiece 61 is rotated into place, the guide pin 52 is reset downward.

[0085] Specifically, as an optional implementation method in this embodiment, such as Figure 6 and Figure 7 As shown, the base 41 includes an upper base 411, a lower base 412, and a plurality of support columns, each of which is disposed between the upper base 411 and the lower base 412;

[0086] The spline nut 43 is fixed to the upper seat 411 by the outer ring, and the lead screw nut 42 is fixed to the lower seat 412 by the outer ring;

[0087] The lifting motor 45 and the rotary motor 46 are mounted on the lower base 412.

[0088] Specifically, as an optional implementation method in this embodiment, such as Figure 6 As shown, the base 41 is mounted on the frame 1 via four equal-height shafts 47.

[0089] Working principle of indexing rotation mechanism 4: When the guide pin 52 is lifted, the lifting motor 45 drives the inner ring of the lead screw nut 42 to rotate, which in turn drives the spline lead screw 44 and the rotating arm 5 to lift, thereby driving the guide pin 52 to insert into the workpiece 61. The lifting height is controlled by the lifting motor 453.

[0090] When the guide pin 52 rotates, the rotary motor 46 drives the inner ring of the spline nut 43 to rotate, which in turn drives the spline screw 44 and the rotating arm 5 to rotate. Through the guide pin 52, the workpiece 61 rotates by the circumferential distance of one tooth 62.

[0091] After workpiece 61 is rotated into position, lifting motor 45 rotates in the opposite direction to reset, and then rotary motor 46 rotates in the opposite direction to reset, ready for the next operation.

[0092] The welding positioning mechanism in this embodiment is a mechanism within the motor ventilation slot plate welding equipment, such as... Figure 1 As shown, the welding equipment mainly includes a frame 1, a welding machine 13, a feeding mechanism 14, and a feeding robot;

[0093] The upper end of the frame 1 is a table 11 on which the workpiece 61 is placed. The table 11 has multiple grooves to accommodate the movement of the guide pin 52 and the locking wheel 25. The workpiece 61 can be a stator lamination or a rotor lamination; in this embodiment... Figure 1 Workpiece 61 in the diagram is a stator lamination. For example... Figure 9 As shown, the stator ventilation slot plate 6 is formed by welding I-beams 63 onto the teeth 62 of the stator laminations.

[0094] The feeding mechanism 14 is responsible for outputting the I-beam 63, the loading robot is responsible for placing the I-beam 63 on the tooth 62 of the workpiece 61, and the welding is responsible for welding the I-beam 63 to the workpiece 61.

[0095] Each tooth 62 on the workpiece 61 needs to be welded with an I-beam 63. Therefore, after welding one I-beam 63, the workpiece 61 needs to be rotated by an angle to switch the next tooth 62 to the welding station 12. The process of switching the tooth 62 on the table 11 of the machine frame 61 requires the use of the welding positioning mechanism of this embodiment. The radial locking mechanism 2 is released, at which time the indexing rotation mechanism 4 drives the workpiece to rotate, and then the radial locking mechanism 2 locks the workpiece 61.

[0096] All the devices (parts whose specific structures are not specified) selected in this application 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.

[0097] In the description of the embodiments of this utility model, 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 this utility model based on the specific circumstances.

[0098] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0099] 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.

[0100] 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.

[0101] In addition, in the various embodiments of this utility model, each functional unit 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.

[0102] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A welding and positioning mechanism for a motor ventilation slot plate, characterized in that, include Radial locking mechanism and indexing rotary mechanism; The radial locking mechanism includes at least three locking elements and a synchronous drive mechanism. The synchronous drive mechanism is connected to each locking element and is adapted to drive the locking wheels on each locking element to move synchronously radially on the machine frame table to achieve radial clamping of the workpiece. The indexing rotation mechanism is suitable for driving the workpiece to rotate horizontally on the machine frame table.

2. The motor ventilation slot plate welding positioning mechanism according to claim 1, characterized in that, The locking element includes A pair of bearing housings are fixedly mounted on the frame, and a pair of guide rods are installed between the two bearing housings; 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. Nut seat, which mates with the first lead screw and the guide rod; A sliding plate, the lower end of which is connected to a nut seat, and a locking wheel is provided at the outer end of the sliding plate and / or the locking wheel is adapted to radially abut against the workpiece; The synchronous drive mechanism drives each slide plate to move synchronously, thereby causing each locking wheel to radially clamp the workpiece.

3. The welding positioning mechanism for the motor ventilation slot plate according to claim 2, characterized in that, The synchronous drive mechanism includes Synchronous motor, which is fixedly mounted on the frame; At least one pair of bevel gear sets, the bevel gear sets including a horizontal bevel gear and a vertical bevel gear, the horizontal bevel gear being fixed to the end of a first lead screw, and the vertical bevel gear being mounted on a frame; A synchronous belt, which is connected to a synchronous motor and various vertical bevel gears.

4. The welding positioning mechanism for the motor ventilation slot plate according to claim 1, characterized in that, The indexing rotation mechanism includes A base, which is fixedly mounted on the frame, is provided with a lead screw nut and a spline nut; A splined lead screw, comprising a splined portion and a lead screw portion, wherein the splined portion passes through the inner ring of a splined nut, and the lead screw portion passes through the inner ring of a lead screw nut; A rotating arm is laterally mounted on the upper end of a splined screw, and a guide pin is provided at one end of the rotating arm; A lifting motor is fixed on a base and connected to the inner ring of a lead screw nut, thereby driving the inner ring of the lead screw nut to rotate. A rotary motor is fixed on a base and connected to the inner ring of a spline nut, thereby driving the inner ring of the spline nut to rotate.

5. The motor ventilation slot plate welding positioning mechanism according to claim 4, characterized in that, A support is provided at the upper end of the rotating arm, through which the rotating arm passes. A locking screw is provided on the support, which is suitable for locking the rotating arm.

6. The welding positioning mechanism for the motor ventilation slot plate according to claim 4, characterized in that, The base includes an upper base, a lower base, and multiple support columns, with each support column disposed between the upper base and the lower base; The spline nut is fixed to the upper seat via the outer ring, and the lead screw nut is fixed to the lower seat via the outer ring; The lifting motor and the rotary motor are mounted on the lower seat.

7. The welding positioning mechanism for the motor ventilation slot plate according to claim 4, characterized in that, The base is mounted on the frame via four equal-height shafts.

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