A motor stator lamination tooling and its usage method

Abstract

The present invention discloses a motor stator lamination tooling, which relates to the technical field of processing tooling. The tooling includes: a fixed base, with a plurality of fixedly connected blocks evenly arranged at its edge; a first positioning assembly, located on the top surface of the fixed base and evenly distributed in a ring around the center of the virtual circle corresponding to the top surface of the fixed base. The present invention completes the radial limiting and locking of the stacked stator laminations through the first positioning assembly, and cooperates with the second positioning assembly to axially press the stacked stator laminations. Then, the first positioning assembly is released so that the second positioning assembly can send out the precisely stacked stator laminations from the station for the next process. Since the first positioning assembly has a large adjustment range and the adjustable dimension range is relatively large, the tooling in this technical solution can be used for various silicon steel sheet columns with different sizes. At the same time, it can accurately position the stacking of silicon steel sheets.

Description

Technical Field

[0001] The present invention relates to the technical field of processing tooling, and particularly to a motor stator lamination tooling and its usage method. Background Art

[0002] Silicon steel sheet is a kind of silicon-iron soft magnetic alloy with extremely low carbon content, generally containing 0.5 - 4.5% silicon. By adding silicon, the resistivity and maximum magnetic permeability of iron can be increased, the coercive force, core loss and magnetic aging can be reduced, so it is widely used in making the cores and stators of various transformers, motors and generators. Usually, as the silicon content in the silicon steel sheet increases, the iron loss, punching property and magnetic induction decrease, and the hardness increases. The higher the working frequency, the greater the eddy current loss. The selected silicon steel sheet should be thinner, and multiple selected silicon steel sheets should be laminated to form a silicon steel sheet column with a certain thickness, and then it is used for the production of motors.

[0003] However, currently, when the tooling for stator lamination stacks the silicon steel sheet columns, the following problems often exist:

[0004] The tooling platform can only stack one or two sizes of silicon steel sheets, and cannot adapt to different sizes of silicon steel sheets, or the adjustable size range is extremely limited, resulting in each tooling platform being only specifically applicable to the use of one silicon steel sheet column;

[0005] When stacking multiple silicon steel sheets, in order to ensure accurate stacking, it is necessary to position through the holes or grooves on the silicon steel sheets, but the existing tooling platforms are difficult to be applicable to the stacking positioning of different sizes of silicon steel sheets.

[0006] Therefore, it is necessary to design a motor stator lamination tooling and its usage method to solve the above problems. Summary of the Invention

[0007] The purpose of the present invention is to overcome the technical problems existing in the prior art that the tooling platform has a limited adaptation range for silicon steel sheets and is prone to dedicated use for each platform; it is difficult for the tooling platform to be applicable to the stacking positioning of different sizes of silicon steel sheets and subsequent stacking adjustment is required. The present invention provides a motor stator lamination tooling and its usage method, and this tooling has the advantages of an adaptation range for silicon steel sheets and being applicable to the stacking positioning of different sizes of silicon steel sheets.

[0008] To achieve the above purpose, the present invention provides the following technical solutions:

[0009] According to one aspect of the present invention, there is also provided a motor stator lamination tooling, and this tooling includes:

[0010] A fixed base, and a plurality of fixed connection blocks are evenly arranged at its edge;

[0011] A first positioning assembly is located on the top surface of the fixed base and is evenly distributed in a ring shape around the center of a virtual circle corresponding to the top surface of the fixed base. The first positioning assembly is slidably connected to the fixed base, and a plurality of the first positioning assemblies evenly distributed in a ring shape move synchronously to achieve aggregation or dispersion, so as to position the stator lamination column;

[0012] The second positioning assembly is located on the top surface of the fixed base and cooperates with the first positioning assembly to press and lift the stator laminations.

[0013] Preferably, the first positioning component comprises:

[0014] A sliding track is embedded in the fixed base;

[0015] A sliding connection seat, located on the sliding track and slidably connected to the sliding track;

[0016] A support block is vertically arranged on the top surface of the sliding connection seat, the support block is a hollow structure, and a notch is provided on the side facing the direction of the center of the virtual circle corresponding to the top surface of the fixed base;

[0017] An air bag, located inside the support block;

[0018] The locking block is located on the supporting block, and the locking surface extends through the notch, and the locking block is slidably matched with the notch.

[0019] Preferably, the length of the locking block is two-thirds of the length of the supporting block and is centrally arranged, and an inclined material guide portion is arranged at the top end of the locking block;

[0020] A limiting block is detachably mounted on the locking surface of one of the locking blocks. The limiting block extends out of the locking surface and is engaged with a corresponding groove on the stator lamination.

[0021] Preferably, a straight-through joint is provided on the side wall of the support block away from the notch, and the airbag is connected to an external air supply / suction pipe through the straight-through joint.

[0022] Preferably, the second positioning component comprises:

[0023] A support plate is located above the fixed base and has a plurality of air-avoiding grooves on its edge that cooperate with the support block;

[0024] The first telescopic push rod is located between the support plate and the fixed base and is transmission-connected with the support plate to drive the support plate to rise or fall.

[0025] Preferably, when the support block moves to the position closest to the center of the virtual circle corresponding to the top surface of the fixed base, the support block does not interfere with the clearance groove;

[0026] After the locking block is fully ejected, when the support plate rises or falls, it does not interfere with the locking block.

[0027] Preferably, a second telescopic ejector rod for assisting in supporting the support plate is provided at a position of the support plate between adjacent support blocks;

[0028] The top end of the second telescopic ejector rod is connected to the corresponding position on the bottom surface of the support plate, and the bottom end of the second telescopic ejector rod is connected to the corresponding position on the top surface of the fixed base;

[0029] A material guiding plate is provided on the top surface of the support plate corresponding to the second telescopic ejector rod.

[0030] Preferably, a third telescopic rod is provided in the middle of the top surface of the support plate, and a pressing plate detachably connected to its top end is provided above the third telescopic rod;

[0031] A plurality of reinforcing rib structures are provided on the bottom surface of the pressing plate.

[0032] Preferably, the diameter of the pressing plate does not exceed the diameter of the smallest virtual circle surrounded by the support blocks, and the pressing plate is connected to the top end of the third telescopic rod through a threaded rod on its bottom surface.

[0033] According to another aspect of the present invention, a method for using a motor stator lamination tooling is further provided. This method is used for the use of the above-mentioned motor stator lamination tooling, and this method includes the following steps:

[0034] Step 1, adjust the positions of the support block, the support plate, the first telescopic ejector rod, the second telescopic ejector rod and the third telescopic rod for the stator laminations to be stacked;

[0035] Among them, after the position adjustment is completed, use the air supply / suction pipe to reduce the internal air pressure of the airbag, so that the locking block retracts into the support block, and remove the pressing plate from the top end of the third telescopic rod;

[0036] And install the corresponding limit block on the corresponding locking block;

[0037] Step 2, place the stator laminations between the support blocks in sequence, and make the slots on the stacked stator laminations be clamped and matched with the limit blocks;

[0038] Step 3, after the stacking is completed, inflate the airbag through the air supply / suction pipe to fully eject the locking block, and complete the center positioning of the stacked stator laminations;

[0039] Step 4: After the center of the circle is positioned, the pressing plate is fixed to the top of the third telescopic rod, and the pressing plate is pulled downward by the third telescopic rod to axially compress the stacked stator laminations;

[0040] Step 5: After the axial extrusion is completed, the air pressure inside the airbag is reduced by using the air supply / suction pipe, so that the locking block is retracted into the support block, and the clamping of the stacked stator laminations is released. At this time, the first telescopic ejector pushes the support plate upward, and the stator laminations are ejected while maintaining the pressure of the pressure plate on the stator laminations;

[0041] Step six, complete the stacking of stator laminations.

[0042] Compared with the prior art, the present invention has the following beneficial effects:

[0043] 1. In the present invention, the radial limiting and locking of the stacked stator laminations is completed by the first positioning assembly, and the stacked stator laminations are axially compressed in cooperation with the second positioning assembly, and then the first positioning assembly is released so that the second positioning assembly can send the precisely stacked stator laminations out of the workstation for the next step. Since the first positioning assembly has a large adjustment range and a relatively large range of adjustable dimensions, the tooling in this technical solution can correspond to the use of silicon steel sheet columns of various sizes. At the same time, the stacking of silicon steel sheets can be precisely positioned;

[0044] 2. In the present invention, a stopper block is detachably installed on the locking surface of one of the locking blocks, the stopper block extends out of the locking surface and engages with the corresponding groove on the stator lamination. Specifically, when placing the stator steel sheet, the stopper block engages with the corresponding groove on the stator lamination, thereby accurately limiting the installation position of the stator steel sheet;

[0045] 3. In the present invention, when the first positioning assembly and the second positioning assembly are used to position and stack the stator laminations, the deformation of the support plate that may occur during the lifting process of the stator laminations and the problem of uneven pushing force on the stator laminations after the deformation are effectively avoided. In particular, when the stator laminations of the maximum size that the tooling can match are pushed, the supporting effect is better. At the same time, the guide plate cooperates with the support block to better position the large-sized stator laminations.

[0046] 4. In the present invention, under the action of the pressure plate and the third telescopic rod, the silicon steel sheet column of the delivery tool can also maintain its own stable state, so that after the high-precision stacking is completed, the silicon steel sheet column can be fully compressed to facilitate the subsequent process; at the same time, in the process of delivering the tool, the silicon steel sheet column still maintains a high-precision matching state, avoiding positional displacement and dislocation of the stator laminations during the delivery of the tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 Isometric view of a motor stator lamination tooling in an embodiment of the present invention;

[0048] Figure 2 Overall structure diagram of a motor stator lamination tooling in an embodiment of the present invention;

[0049] Figure 3 Structure diagram of a motor stator lamination tooling in an embodiment of the present invention after the pressure plate is removed;

[0050] Figure 4 Top view of a motor stator lamination tooling in an embodiment of the present invention;

[0051] Figure 5 Top view of a motor stator lamination tooling in an embodiment of the present invention after the pressure plate is removed;

[0052] Figure 6 Is Figure 4 Cross-sectional view at A-A in;

[0053] Figure 7 Flowchart of the usage method of a motor stator lamination tooling in an embodiment of the present invention.

[0054] In the figure:

[0055] 1. Fixed base;

[0056] 2. Fixed connection block;

[0057] 3. First positioning component; 31. Sliding track; 32. Sliding connection seat; 33. Support block; 34. Notch; 35. Airbag; 36. Locking block; 37. Feeding part; 38. Limiting block; 39. Straight-through joint;

[0058] 4. Second positioning component; 41. Support plate; 42. Relief groove; 43. First telescopic ejector rod; 44. Second telescopic ejector rod; 45. Feeding plate; 46. Third telescopic rod; 47. Pressure plate; 48. Reinforcement structure; 49. Threaded rod. Detailed implementation method

[0059] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0060] Figure 1 Isometric view of a motor stator lamination tooling in an embodiment of the present invention;Figure 2 Schematic diagram of the overall structure of a motor stator lamination tooling in an embodiment of the present invention; Figure 3 Schematic diagram of the structure of a motor stator lamination tooling after the pressure plate is removed in an embodiment of the present invention; Figure 4 Top view of a motor stator lamination tooling in an embodiment of the present invention; Figure 5 Top view of a motor stator lamination tooling after the pressure plate is removed in an embodiment of the present invention; Figure 6 For Figure 4 Cross-sectional view taken along line A-A in Figure 7 Flow chart of the usage method of a motor stator lamination tooling in an embodiment of the present invention.

[0061] With reference to the accompanying drawings, in an embodiment of the present invention, a motor stator lamination tooling may include: a fixed base 1, fixed connection blocks 2, a first positioning component 3, and a second positioning component 4. Among them, the fixed connection blocks 2 are uniformly arranged along the edge of the fixed base 1; the first positioning component 3 is located on the top surface of the fixed base 1 and is evenly distributed in a ring around the center of the virtual circle corresponding to the top surface of the fixed base 1. The first positioning component 3 is slidably connected to the fixed base 1, and a plurality of the first positioning components 3 distributed evenly in a ring move synchronously to achieve aggregation or dispersion, for positioning the stator lamination column; the second positioning component 4 is located on the top surface of the fixed base 1 and cooperates with the first positioning component 3, for pressing and lifting the stator laminations. Specifically, 4 fixed connection blocks 2 are provided and are evenly arranged around the outer wall of the fixed base 1, for fixing the fixed base 1 on the work station. During work, the first positioning component 3 first performs radial limiting and locking on the stator laminations to be stacked, so that the centers of the stator laminations are on the same straight line and their positions are fixed. Then, the second positioning component 4 axially presses the stator laminations, and after pressing, the first positioning component 3 is released, and then the second positioning component 4 pushes out the stacked stator laminations, that is, the stacking of the stator laminations is completed.

[0062] In the above technical solution, the radial limiting and locking of the stacked stator laminations are completed by the first positioning component 3, and the second positioning component 4 is used to axially press the stacked stator laminations. Then, the first positioning component 3 is released, so that the second positioning component 4 can send out the precisely stacked stator laminations from the work station for the next process. Since the first positioning component 3 has a large adjustment range and the adjustable dimension range is relatively large, the tooling in this technical solution can be used for silicon steel sheet columns with various different sizes. At the same time, it can accurately position the stacking of silicon steel sheets.

[0063] For the convenience of those skilled in the art to fully understand the technical solution of this application and clarify how the first positioning component 3 accurately positions the stacking of silicon steel sheets and achieves a large adjustment range, the structure of the first positioning component 3 is further described. In this embodiment, the first positioning component 3 may include: a sliding track 31, a sliding connection seat 32, a support block 33, a notch 34, an airbag 35, and a locking block 36. Among them, the sliding track 31 is embedded in the fixed base 1; the sliding connection seat 32 is located on the sliding track 31 and is slidably connected to the sliding track 31; the support block 33 is vertically arranged on the top surface of the sliding connection seat 32. The support block 33 is a hollow structure, and a notch 34 is provided on the side surface facing the center of the virtual circle corresponding to the top surface of the fixed base 1; the airbag 35 is located inside the support block 33; the locking block 36 is located on the support block 33, and the locking surface extends out through the notch 34, and the locking block 36 is slidably matched with the notch 34. Specifically, the support block 33 is fixedly installed on the sliding connection seat 32, and the support block 33 is moved along the sliding track 31 through the sliding connection seat 32. The adjustable distance of the support block 33 is the effective stroke of the sliding track 31, so as to ensure that the support block 33 has a large adjustment range. When positioning the stacked stator steel sheets, the airbag 35 is inflated to increase the internal pressure and expand, so as to push the locking block 36 out of the notch 34. The pushing force of the airbag 35 on the locking block 36 is used to realize the axial limitation and locking of the stacked stator steel sheets, which not only realizes self-centering but also ensures high-precision positioning.

[0064] To enable the locking block 36 to better cooperate with the support block 33 and achieve stable clamping of the stator steel sheets. In this embodiment, the length of the locking block 36 is set to two-thirds of the length of the support block 33 and is centered, so as to ensure that when the locking block 36 is pushed by the airbag 35, the forces on each part are relatively balanced, and at the same time, the support of the support block 33 for the locking block 36 is more stable. To facilitate the smooth entry of the stator steel sheets into the first positioning component 3, an inclined feeding portion 37 is provided at the top end of the locking block 36, so that the positioning steel sheets can enter the first positioning component 3 more smoothly under the guidance of the inclined surface. In order to further improve the positioning accuracy of the stacked stator steel sheets and be applicable to the high-precision position limitation of stator steel sheets of different sizes. In this embodiment, a limiting block 38 is detachably installed on the locking surface of one of the locking blocks 36. The limiting block 38 extends out of the locking surface and is snap-fitted with the corresponding slot on the stator stack. Specifically, when placing the stator steel sheets, the limiting block 38 is snap-fitted with the corresponding slot on the stator stack, so as to accurately limit the installation position of the stator steel sheets.

[0065] To ensure that the airbag 35 can expand quickly and generate sufficient force on the locking block 36, so that the stator steel sheet column is fully positioned. In this embodiment, the airbag 35 is connected to the external supply / intake pipe a through a straight joint 39. Among them, the air inlet end of the supply / intake pipe a is connected to a high-pressure air supply pipeline, such as a compressor. In order not to affect the clamping and positioning work of the support block 33, the straight joint 39 is set on the side wall of the support block 33 away from the notch 34, and in the lower position. The pneumatic clamping method is adopted, which is not only fast in action, but also will not cause pollution to the electronic workshop, and can effectively ensure the effective and precise completion of the clamping action.

[0066] In order to facilitate those skilled in the art to fully understand the technical solution of the present application and to clearly understand how the second positioning assembly 4 pushes out the stacked stator laminations, the structure of the second positioning assembly 4 is further described. In this embodiment, the second positioning assembly 4 may include: a support plate 41, an air avoidance groove 42 and a first telescopic push rod 43. Among them, the support plate 41 is located above the fixed base 1, and a plurality of air avoidance grooves 42 cooperating with the support block 33 are provided at the edge; the first telescopic push rod 43 is located between the support plate 41 and the fixed base 1, and is transmission-connected to the support plate 41 to drive the support plate 41 to rise or fall. Specifically, the stacked stator steel sheets are restricted by the first positioning assembly 3 in both radial and axial directions. At the same time, the stacked stator steel sheets are placed on the support plate 41, and the support plate 41 supports the stator silicon steel sheet column. Since the first telescopic push rod 43 can drive the support plate 41 to rise or fall, the position of the support plate 41 can be adjusted by the first telescopic push rod 43 to facilitate the stacking of stators of different lengths. After the stacking is completed, the stator stack column is sent out of the tooling by further lifting by the first telescopic push rod 43. The air-avoiding groove 42 corresponds to the position of the support block 33 and does not interfere with the movement of the support block 33. Through the above structure, the stator stack can be effectively placed and pushed out, and at the same time, it does not interfere with the first positioning assembly 3 during the working process.

[0067] To ensure that while the pallet 41 stably supports the stator steel sheets, it does not affect the movement and adjustment of the support block 33, so as to ensure the stability of the adjustment range. In this embodiment, the support block 33 does not interfere with the clearance groove 42. Specifically, when the support block 33 moves to the center of the virtual circle corresponding to the top surface of the fixed base 1 closest thereto, the support block 33 does not contact the clearance groove 42, so that the pallet 41 does not affect the movement of the support block 33; similarly, when the support block 33 moves to the center of the virtual circle corresponding to the top surface of the fixed base 1 farthest therefrom, the support block 33 also does not contact the clearance groove 42, that is, the support block 33 does not contact the pallet 41 when moving along the sliding track 31. And no matter where the support block 33 is located, after the locking block 36 is fully ejected, when the pallet 41 rises or falls, it does not interfere with the locking block 36 either. Through the setting of the above structure, the first positioning component 3 and the second positioning component 4 cooperate with each other and work stably when positioning and stacking the stator laminations, so as to improve the stacking accuracy of the stator laminations.

[0068] Due to the setting of the clearance groove 42 on the pallet 41, the overall structure of the pallet 41 is lowered. To prevent the pallet 41 from deforming during the process of jacking up the stator laminations, resulting in uneven pushing forces on the stator laminations. In this embodiment, a second telescopic ejector rod 44 is respectively arranged in the area between the fan-shaped area of the pallet 41 and the fixed base 1. Among them, the second telescopic ejector rod 44 for assisting in supporting the pallet 41 is arranged at the position of the pallet 41 between adjacent support blocks 33; the top end of the second telescopic ejector rod 44 is connected to the corresponding position on the bottom surface of the pallet 41, and the bottom end of the second telescopic ejector rod 44 is connected to the corresponding position on the top surface of the fixed base 1. Specifically, the top end of the second telescopic ejector rod 44 is connected to the corresponding position on the bottom surface of the pallet 41, and the bottom end of the second telescopic ejector rod 44 is connected to the corresponding position on the top surface of the fixed base 1, and it rises and falls synchronously with the first telescopic ejector rod 43 during work to provide additional supporting forces. In addition, to assist the stacking of the stator laminations with the largest size that the tooling can match, a guide plate 45 is also arranged on the top surface of the fan-shaped area of the pallet 41. The guide plate 45 is located on the top surface of the pallet 41 between adjacent support blocks 33 and near the edge. Through the setting of the above structure, when the first positioning component 3 and the second positioning component 4 position and stack the stator laminations, it effectively avoids the possible deformation of the pallet 41 during the process of jacking up the stator laminations and the problem of uneven pushing forces on the stator laminations after deformation. Especially when jacking up the stator laminations with the largest size that the tooling can match, it plays a better supporting role. At the same time, the guide plate 45 cooperates with the support block 33 to better position the large-size stator laminations.

[0069] For those skilled in the art to fully understand the technical solution of this application and clearly understand how the second positioning component 4 pushes out the stacked stator laminations, the structure of the second positioning component 4 will be further described. In this embodiment, the second positioning component 4 may further include: a third telescopic rod 46, a pressing plate 47, and a reinforcing rib structure 48. Among them, the third telescopic rod 46 is provided in the middle of the top surface of the support plate 41, and a pressing plate 47 detachably connected to its top end is provided above the third telescopic rod 46; a plurality of reinforcing rib structures 48 are provided on the bottom surface of the pressing plate 47. Specifically, after the first positioning component 3 completes the axial and radial positioning of the silicon steel sheet column, the pressing plate 47 is installed at the top end of the third telescopic rod 46. The contraction of the third telescopic rod 46 drives the pressing plate 47 to move downward until it presses on the uppermost stator steel sheet to complete the pressing of the silicon steel sheet column. Then, the first telescopic ejector rod 43 sends out the silicon steel sheet column in the pressed state from the tooling. A plurality of reinforcing rib structures 48 are provided on the bottom surface of the pressing plate 47 to further improve the structural strength of the pressing plate 47, so that the acting force of the pressing plate 47 on the stator steel sheet is more balanced. Through the setting of the above structure, after the silicon steel sheet column is stacked with high precision, it can be fully pressed to facilitate subsequent processes; at the same time, during the process of sending out the tooling, the silicon steel sheet column still maintains a high-precision matching state, avoiding the position deviation and dislocation of the stator laminations during the process of sending out the tooling.

[0070] To ensure that the movement of the pressing plate 47 does not affect the support block 33 and to realize the smooth extrusion of the stator steel sheet by the pressing plate 47. In this embodiment, the diameter of the set pressing plate 47 does not exceed the diameter of the smallest virtual circle surrounded by the support blocks 33. Even when the diameter of the virtual circle surrounded by the support blocks 33 is the smallest, the edge of the pressing plate 47 does not interfere with the support blocks 33, and similarly, it does not interfere with the fully extended locking block 36. To facilitate the connection between the pressing plate 47 and the third telescopic rod 46, a threaded rod 49 may also be provided on the bottom surface of the pressing plate 47, and the external thread on the threaded rod 49 is matched with the internal threaded hole at the top end of the third telescopic rod 46. Through the setting of the above structure, the connection between the pressing plate 47 and the third telescopic rod 46 is convenient, simple, and firm, which is beneficial to actual operation. At the same time, the pressing plate 47 does not interfere with the support block 33 and the locking block 36 during the working process, ensuring the maintenance of the overall posture of the silicon steel sheet column during extrusion and sending out the tooling.

[0071] In the technical solution of the present invention, after the first positioning component 3 completes the radial limiting and locking of the stacked stator laminations, the second positioning component 4 is used to axially press the stacked stator laminations, and then the first positioning component 3 is loosened so that the second positioning component 4 can send out the precisely stacked stator laminations from the station for the next process. Since the first positioning component 3 has a large adjustment range and the adjustable dimension range is relatively large, the tooling in this technical solution can be used for silicon steel sheet columns of various sizes. At the same time, it can accurately position the stacking of the silicon steel sheets.

[0072] A limiting block 38 is detachably installed on the locking surface of one of the locking blocks 36. The limiting block 38 extends out of the locking surface and is clamped and matched with the corresponding slot on the stator lamination. Specifically, when placing the stator steel sheet, the limiting block 38 is clamped and matched with the corresponding slot on the stator lamination, so as to accurately limit the installation position of the stator steel sheet.

[0073] When the first positioning component 3 and the second positioning component 4 position and stack the stator laminations, it effectively avoids the deformation that may occur to the pallet 41 during the jacking process of the stator laminations, and the problem of uneven pushing force on the stator laminations after deformation. Especially when pushing the stator laminations with the maximum size that the tooling can match, it plays a better supporting role. At the same time, the guide plate 45 cooperates with the support block 33 to better position the large-size stator laminations.

[0074] In addition, under the action of the pressing plate 47 and the third telescopic rod 46, the column of silicon steel sheets sent out by the tooling can also maintain its own stable state, so that after the column of silicon steel sheets is stacked with high precision, it can be fully pressed to facilitate the subsequent process; at the same time, during the process of sending out the tooling, the column of silicon steel sheets still maintains a high-precision matching state, avoiding the position deviation and misalignment of the stator laminations during the process of sending out the tooling.

[0075] According to another aspect of the present invention, there is also provided a method for using a tooling for motor stator laminations, which is used for the use of the above-mentioned tooling for motor stator laminations. The method includes the following steps:

[0076] Step S10, adjust the positions of the support block 33, the pallet 41, the first telescopic ejector rod 43, the second telescopic ejector rod 44 and the third telescopic rod 46 for the stator laminations to be stacked;

[0077] Among them, after the position adjustment is completed, use the air supply / suction pipe to reduce the internal air pressure of the airbag 35, so that the locking block 36 retracts into the support block 33, and remove the pressing plate 47 from the top end of the third telescopic rod 46;

[0078] And install the corresponding limiting block 38 on the corresponding locking block 36;

[0079] Step S20, place the stator laminations between the support blocks 33 in sequence, and make the slots on the stacked stator laminations all be clamped and matched with the limiting blocks 38;

[0080] Step S30, after the stacking is completed, inflate the airbag 35 through the air supply / suction pipe to make the locking block 36 fully eject, and complete the centering positioning of the stator laminations after the stacking;

[0081] Step S40, after the center of the circle is positioned, the pressing plate 47 is fixed to the top of the third telescopic rod 46, and the pressing plate 47 is pulled downward by the third telescopic rod 46 to axially squeeze the stacked stator laminations;

[0082] Step S50, after the axial extrusion is completed, the air pressure inside the airbag 35 is reduced by using the air supply / suction pipe, so that the locking block 36 is retracted into the support block 33, and the clamping of the stacked stator laminations is released. At this time, the first telescopic push rod 43 pushes the support plate 41 upward, and the stator laminations are ejected while maintaining the pressure of the pressure plate 47 on the stator laminations;

[0083] Step S60, completing the stacking of stator laminations.

[0084] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A motor stator lamination tooling, characterized in that, the tooling includes: A fixed base (1), with a plurality of fixedly connected blocks (2) evenly arranged at its edge; A first positioning component (3), located on the top surface of the fixed base (1) and evenly distributed in a ring around the center of the virtual circle corresponding to the top surface of the fixed base (1). The first positioning component (3) is slidably connected to the fixed base (1), and a plurality of the first positioning components (3) evenly distributed in a ring move synchronously to achieve aggregation or dispersion, for positioning the stator lamination column; A second positioning component (4), located on the top surface of the fixed base (1) and cooperating with the first positioning component (3), for pressing and lifting the stator lamination; The first positioning component (3) includes: A sliding track (31), embedded in the fixed base (1); A sliding connection seat (32), located on the sliding track (31) and slidably connected to the sliding track (31); A support block (33), vertically arranged on the top surface of the sliding connection seat (32). The support block (33) is a hollow structure, and a notch (34) is provided on the side surface facing the center of the virtual circle corresponding to the top surface of the fixed base (1); An airbag (35), located inside the support block (33); A locking block (36), located on the support block (33), and the locking surface extends out through the notch (34). The locking block (36) is slidably matched with the notch (34); The length of the locking block (36) is two-thirds of the length of the support block (33) and is centrally arranged. An inclined material guiding portion (37) is provided at the top end of each locking block (36); A limiting block (38) is detachably installed on the locking surface of one of the locking blocks (36). The limiting block (38) extends out of the locking surface and is snap-fitted with the corresponding slot on the stator lamination; A straight-through joint (39) is provided on the side wall of the support block (33) away from the notch (34). The airbag (35) is communicated with an external air supply / suction pipe through the straight-through joint (39).

2. The motor stator lamination tooling according to claim 1, characterized in that: The second positioning component (4) includes: A support plate (41), located above the fixed base (1), and a plurality of clearance slots (42) cooperating with the support blocks (33) are provided at its edge; A first telescopic ejector rod (43), located between the support plate (41) and the fixed base (1) and drivingly connected to the support plate (41), driving the support plate (41) to rise or fall.

3. The motor stator lamination tooling according to claim 2, characterized in that: When the support block (33) moves to the position closest to the center of the virtual circle corresponding to the top surface of the fixed base (1), the support block (33) does not interfere with the clearance slot (42); After the locking block (36) is fully ejected, when the support plate (41) rises or falls, it does not interfere with the locking block (36).

4. The motor stator lamination tooling according to claim 3, characterized in that: The support plate (41) is provided with a second telescopic top rod (44) for auxiliary supporting the support plate (41) at a position between adjacent support blocks (33); The top end of the second telescopic top rod (44) is connected to a corresponding position on the bottom surface of the support plate (41), and the bottom end of the second telescopic top rod (44) is connected to a corresponding position on the top surface of the fixed base (1); A material guide plate (45) is provided on the top surface of the support plate (41) corresponding to the second telescopic top rod (44).

5. The motor stator lamination tooling according to claim 4, Features: A third telescopic rod (46) is provided in the middle of the top surface of the support plate (41), and a pressing plate (47) detachably connected to the top end of the third telescopic rod (46) is provided above the third telescopic rod (46); The bottom surface of the pressing plate (47) is provided with a plurality of reinforcing rib structures (48).

6. The motor stator lamination tooling according to claim 5, Features: The diameter of the pressing plate (47) does not exceed the diameter of the smallest virtual circle surrounded by the support blocks (33); a threaded rod (49) is provided on the bottom surface of the pressing plate (47); and the pressing plate (47) is connected to the top end of the third telescopic rod (46) via the threaded rod (49).

7. A method for using a motor stator lamination tool, the method being used for using the motor stator lamination tool as claimed in claim 6, It is characterized in that The method comprises the following steps: Step one, adjusting the positions of the support block (33), the support plate (41), the first telescopic top rod (43), the second telescopic top rod (44), and the third telescopic rod (46) according to the stator laminations to be stacked; After the position adjustment is completed, the air pressure inside the air bag (35) is reduced by using the air supply / suction pipe, so that the locking block (36) is retracted into the support block (33), and the pressing plate (47) is removed from the top end of the third telescopic rod (46); and installing the corresponding limit block (38) on the corresponding locking block (36); Step 2, placing the stator laminations in sequence between the support blocks (33), and making the grooves on the stacked stator laminations engage with the limit blocks (38); Step three, after stacking is completed, inflate the air bag (35) through the air supply / intake pipe to fully push out the locking block (36) to complete the center positioning of the stator laminations after stacking; Step 4, after the center of the circle is positioned, the pressing plate (47) is fixedly mounted on the top end of the third telescopic rod (46), and the pressing plate (47) is pulled downward by the third telescopic rod (46) to axially compress the stacked stator laminations; Step 5, after the axial extrusion is completed, the air pressure inside the airbag (35) is reduced by using the air supply / suction pipe, so that the locking block (36) is retracted into the support block (33), and the clamping of the stacked stator laminations is released. At this time, the first telescopic push rod (43) lifts the support plate (41) upward, and the stator laminations are ejected while maintaining the pressure of the pressure plate (47) on the stator laminations; Step six, complete the stacking of stator laminations.

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