Laminating device for stator core of linear motor

Abstract

The utility model discloses a linear motor stator core laminating device, which relates to the technical field of motor manufacturing, and comprises a bottom plate, a side plate assembly, an oil cylinder assembly, a pressing plate assembly and a positioning assembly, the side plate assembly comprises a fixed side plate and a movable side plate movably connected to the notch, a plurality of iron core punching sheets are vertically arranged on the bottom plate of the plate body structure, the upper end face of the bottom plate serves as a datum plane of the iron core punching sheets, and the iron core punching sheets are clamped by the fixed side plate and the movable side plate which are vertically connected to the two sides of the bottom plate. The first ejector block and the second ejector block are connected to the U-shaped grooves of the fixed side plate and the movable side plate respectively, a power piece arranged on the second ejector block enables the movable side plate and the movable side plate to tightly press the iron core punching sheet, a lower pressing plate of the pressing plate assembly can be close to the bottom plate to be used for tightly pressing the iron core punching sheet, and the pressing plate assembly is further provided with a positioning key and a groove sample rod which are attached to the iron core punching sheet. The flatness of the tooth crest plane of the iron core punching sheet, the straightness of the groove profile and the lamination coefficient can be guaranteed, and the lamination device can be suitable for lamination of the linear motor punching sheets.

Description

Technical Field

[0001] The present application relates to the technical field of motor manufacturing, and in particular to a linear motor stator core lamination device. Background Art

[0002] Conventional motor core stacking adopts vertical stacking, with a center positioning jig, and is pressed with a hydraulic press after stacking. This stacking device and method are not suitable for linear motor stacking because of the following problems: linear motor punching sheets are long and cannot be installed with a center positioning jig, there is a lack of stacking reference, and the core plane cannot be guaranteed; the size of the four-column hydraulic press is limited, and longer cores cannot enter; when the four-column hydraulic press presses the core, force is applied to a local area, and it is impossible to ensure that the entire core is evenly stressed and pressed, and the pressure between the sheets is uneven, making it difficult to ensure the stacking coefficient.

[0003] Therefore, developing a lamination device suitable for linear motor punching sheets is a technical problem that technical personnel in this field currently need to solve. Utility Model Content

[0004] The purpose of the present application is to provide a linear motor stator core lamination device, which can be used for lamination of linear motor punching sheets.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A linear motor stator core lamination device, comprising:

[0007] The bottom plate is a plate structure, and the bottom plate is provided with notches;

[0008] The side plate assembly includes a fixed side plate and a movable side plate vertically connected to both sides of the bottom plate, the movable side plate is movably connected to the notch, the fixed side plate and the movable side plate are both provided with through holes and U-shaped grooves, and the tensioning screws are passed through the through holes to fix the stacked multiple iron core punching sheets;

[0009] The oil cylinder assembly comprises an oil cylinder frame, a first top block, a second top block and a power piece, wherein the first top block and the second top block are respectively located at the ends of the oil cylinder frame and connected to the U-shaped groove, and the power piece is arranged on the second top block, and the power piece is used to control the distance between the movable side plate and the fixed side plate;

[0010] A pressing plate assembly is fixed to the bottom plate and the fixed side plate, and includes an upper pressing plate and a lower pressing plate which are parallel to each other, and the lower pressing plate can be close to or away from the bottom plate, and is used to press the iron core punching sheets;

[0011] The positioning component includes a positioning key and a groove sample rod. The positioning key is connected to the fixed side plate, and the groove sample rod is used to ensure that the groove shape of the core punching sheet is neat.

[0012] Preferably, there are multiple cylinder assemblies, which are evenly arranged on the fixed side plate and the movable side plate, and the multiple cylinder assemblies are connected to the same hydraulic pump and the same cylinder through oil pipes to ensure synchronous operation of the multiple cylinder assemblies.

[0013] Preferably, the fixed side plate is further provided with a countersunk hole and a keyway, wherein the countersunk hole is located at the top of the fixed side plate, and the keyway is used for positioning the locating key.

[0014] Preferably, the top and bottom of the movable side plate are respectively provided with a notch and an insert, and the insert is snapped into the notch for the movable side plate to move along the extending direction of the notch.

[0015] Preferably, the pressure plate assembly further includes a first screw, a second screw, a guide rod and a clamping bolt, wherein the first screw and the second screw are respectively fixed to the bottom plate and the fixed side plate and are respectively connected to two ends of the upper pressure plate.

[0016] Preferably, the guide rod is fixedly connected to the lower pressure plate, the upper pressure plate is provided with a guide hole for the guide rod to pass through, the clamping bolt is threadedly connected to the upper pressure plate, and the clamping bolt is used to support the lower pressure plate that is attached to the core punching sheet.

[0017] Preferably, the fixed side plate is detachably connected to the bottom plate via a connecting piece, and the connecting piece is located inside the countersunk hole.

[0018] Preferably, the connecting member is a bolt.

[0019] Preferably, eye holes are provided around the base plate, and the eye holes are used to move the base plate.

[0020] Preferably, the notch is a T-shaped slot.

[0021] Compared with the above background technology, the linear motor stator core stacking device provided by the present application includes a bottom plate, a side plate assembly, a cylinder assembly, a pressure plate assembly and a positioning assembly. The bottom plate is a plate structure, and the bottom plate is provided with a notch; the side plate assembly includes a fixed side plate and a movable side plate vertically connected to both sides of the bottom plate, and the movable side plate is movably connected to the notch. The fixed side plate and the movable side plate are both provided with through holes and U-shaped grooves. The tensioning screw is passed through the through hole to fix the stacked multiple core punching sheets; the cylinder assembly includes a cylinder frame, a first top The first top block and the second top block are respectively located at the ends of the cylinder frame and connected to the U-shaped groove. The power piece is arranged on the second top block. The power piece is used to control the distance between the movable side plate and the fixed side plate. The pressure plate assembly is fixed to the bottom plate and the fixed side plate, including an upper pressure plate and a lower pressure plate parallel to each other. The lower pressure plate can be close to or away from the bottom plate and is used to press the core punching sheet. The positioning assembly includes a positioning key and a groove sample rod. The positioning key is connected to the fixed side plate, and the groove sample rod is used to ensure that the groove shape of the core punching sheet is neat.

[0022] Specifically, the stator core punching sheets of the linear motor are placed upright on the bottom plate of the plate structure, and the upper end surface of the bottom plate is used as the reference surface of the core punching sheets. The fixed side plates and movable side plates vertically connected to both sides of the bottom plate clamp multiple core punching sheets. The first top block and the second top block are respectively connected to the U-shaped grooves of the fixed side plate and the movable side plate. The power parts provided on the second top block exert pressure on the movable side plate, so that the fixed side plate and the movable side plate press the core punching sheets. The lower pressure plate of the pressure plate assembly can be close to or away from the bottom plate for pressing the core punching sheets. In addition, positioning keys and groove sample rods that fit the core punching sheets are also provided. With this arrangement, the flatness of the tooth top plane of the core punching sheets, the straightness of the groove type of the core punching sheets, and the stacking coefficient of the core punching sheets can be guaranteed, and it can be suitable for the stacking of linear motor punching sheets. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0024] Figure 1 A schematic diagram of the structure of the laminating device provided by the embodiment of the utility model in the use state;

[0025] Figure 2 A schematic diagram of the structure of a laminating device provided in an embodiment of the utility model;

[0026] Figure 3 A schematic diagram of the structure of the core punching sheets after lamination is completed provided in an embodiment of the utility model;

[0027] Figure 4 A schematic diagram of the structure of the movable side panel provided by the embodiment of the utility model;

[0028] Figure 5 A schematic diagram of the structure of the oil cylinder assembly provided by an embodiment of the utility model;

[0029] Figure 6 This is a schematic structural diagram of a pressure plate assembly provided in an embodiment of the utility model.

[0030] in:

[0031] 1- iron core punching sheet, 2- tensioning screw, 3- upper tooth pressure plate, 4- lower tooth pressure plate, 5- back plate;

[0032] 100-bottom plate, 110-slot, 120-eye hole;

[0033] 210-fixed side plate, 211-countersunk hole, 220-movable side plate, 221-inserted block, 222-notch, 230-through hole;

[0034] 300-oil cylinder assembly, 310-oil cylinder frame, 320-first top block, 330-second top block, 340-power piece;

[0035] 400-pressing plate assembly, 410-upper pressing plate, 420-lower pressing plate, 430-first screw rod, 440-second screw rod, 450-guide rod, 460-tightening bolt;

[0036] 500- positioning assembly, 510- positioning key, 520- slot sample rod. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0038] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0039] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left" and "right" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the positions or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation of the present invention.

[0040] The purpose of the present application is to provide a linear motor stator core lamination device, which can be used for lamination of linear motor punching sheets.

[0041] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0042] See also Figure 1 and Figure 2 The present embodiment provides a linear motor stator core lamination device, including a base plate 100, a side plate assembly, a cylinder assembly 300, a pressure plate assembly 400 and a positioning assembly 500.

[0043] The bottom plate 100 is a plate structure and is provided with a notch 110 .

[0044] The side plate assembly includes a fixed side plate 210 and a movable side plate 220 vertically connected to both sides of the base plate 100. The movable side plate 220 is movably connected to the slot 110. Both the fixed side plate 210 and the movable side plate 220 are provided with a through hole 230 and a U-shaped groove. The tensioning screw 2 is passed through the through hole 230 to fix the stacked multiple core punching sheets 1.

[0045] It should be noted that, in this embodiment, the flatness of the bottom plate 100 reaches 0.05 mm; the lengths of the bottom plate 100, the fixed side plate 210 and the movable side plate 220 can be adjusted according to the length of the core punching sheet 1 to achieve the above purpose.

[0046] See also Figure 5 The cylinder assembly 300 includes a cylinder frame 310, a first top block 320, a second top block 330 and a power piece 340. The first top block 320 and the second top block 330 are respectively located at the ends of the cylinder frame 310 and connected to the U-shaped groove. The power piece 340 is arranged on the second top block 330. The power piece 340 is used to control the distance between the movable side plate 220 and the fixed side plate 210.

[0047] The pressing plate assembly 400 is fixed to the bottom plate 100 and the fixed side plate 210 , and includes an upper pressing plate 410 and a lower pressing plate 420 which are parallel to each other. The lower pressing plate 420 can be moved close to or away from the bottom plate 100 , and is used to press the core punching sheet 1 .

[0048] The positioning assembly 500 includes a positioning key 510 and a groove sample rod 520 . The positioning key 510 is connected to the fixed side plate 210 , and the groove sample rod 520 is used to ensure that the groove shape of the core punching sheet 1 is neat.

[0049] Specifically, the stator core sheet 1 of the linear motor is placed on the bottom plate 100 of the plate structure, the upper end surface of the bottom plate 100 is used as the reference surface of the core sheet 1, the fixed side plate 210 and the movable side plate 220 vertically connected to both sides of the bottom plate 100 clamp the plurality of core sheets 1, the first top block 320 and the second top block 330 are respectively connected to the U-shaped grooves of the fixed side plate 210 and the movable side plate 220, and the power piece 340 provided on the second top block 330 exerts a force on the movable side plate 220. The fixed side plate 210 and the movable side plate 220 press the core punching sheet 1 by applying pressure. The lower pressure plate 420 of the pressure plate assembly 400 can be close to or away from the bottom plate 100 to press the core punching sheet 1. In addition, a positioning key 510 and a groove sample rod 520 that fit with the core punching sheet 1 are provided. With this arrangement, the flatness of the tooth top plane of the core punching sheet 1, the straightness of the groove of the core punching sheet 1 and the stacking coefficient of the core punching sheet 1 can all be guaranteed, and it can be suitable for the stacking of linear motor punching sheets.

[0050] Preferably, there are multiple cylinder assemblies 300, and the multiple cylinder assemblies 300 are evenly arranged on the fixed side plate 210 and the movable side plate 220. The multiple cylinder assemblies 300 are connected to the same hydraulic pump and the same cylinder through oil pipes to ensure the synchronous operation of the multiple cylinder assemblies 300.

[0051] It is understandable that the synchronous operation of multiple power components 340 can be achieved through the same hydraulic pump and the same cylinder, which can ensure that the power components 340 can smoothly push the movable side plate 220. The specific number of cylinder assemblies 300 can be adjusted according to actual conditions to achieve the above purpose.

[0052] Preferably, the fixed side plate 210 is further provided with a countersunk hole 211 and a key slot, wherein the countersunk hole 211 is located at the top of the fixed side plate 210 , and the key slot is used to position the positioning key 510 .

[0053] It should be noted that the position of the keyway for positioning the positioning key 510 is related to the type of the core punching sheet 1 , and the position of the keyway can be adjusted accordingly according to the type of the core punching sheet 1 as long as the above purpose can be achieved.

[0054] See also Figure 4 Preferably, a notch 222 and an insert 221 are respectively provided at the top and the bottom of the movable side plate 220 , and the insert 221 is snapped into the slot 110 for the movable side plate 220 to move along the extending direction of the slot 110 .

[0055] It is understandable that a notch 222 for placing the back plate 5 is provided at the top of the movable side plate 220 , and an insert 221 for moving the movable side plate 220 along the extension direction of the slot 110 is provided at the bottom of the movable side plate 220 , and the insert 221 can limit the movable side plate 220 from escaping from the slot 110 .

[0056] It should be noted that the number of the notches 222 and the inserts 221 can be adjusted according to actual conditions as long as the above purpose can be achieved.

[0057] See also Figure 6 Preferably, the pressure plate assembly 400 also includes a first screw 430, a second screw 440, a guide rod 450 and a clamping bolt 460, and the first screw 430 and the second screw 440 are respectively fixed to the base plate 100 and the fixed side plate 210 and are respectively connected to the two ends of the upper pressure plate 410.

[0058] See also Figure 1 and Figure 3 , the lamination process of the stator core is as follows:

[0059] First, after assembling the bottom plate 100, the fixed side plate 210 and the movable side plate 220, install the positioning key 510 into the keyway of the fixed side plate 210, and place the lower tooth pressure plate 4 on the side of the fixed side plate 210 close to the movable side plate 220, and stack the teeth of multiple core punching sheets 1 tightly on the upper end surface of the bottom plate 100 for lamination; stack 5-10mm each time, and pick out abnormal core punching sheets 1 in time during the lamination process to ensure that the core punching sheets 1's groove quality; when the stacking is to 20mm thick, use a nylon hammer to adjust the lower tooth pressure plate 4 and the core punching sheet 1 to ensure that the lower tooth pressure plate 4 is not higher than the end of the core punching sheet 1 away from the tooth portion, and there is no convex piece phenomenon at the end of the core punching sheet 1 away from the tooth portion; when the stacking is to 40-50mm thick, insert 4 groove sample rods 520 evenly, use a flashlight to illuminate, check the groove type, which should be neat and without convex pieces, continue to stack and shape, and reserve 1-2mm margin after the stacking is completed.

[0060] Secondly, place the upper tooth pressure plate 3 on the side of the movable side plate 220 close to the fixed side plate 210, and ensure that the back of the upper tooth pressure plate 3 is not higher than the end of the core punching sheet 1 away from the tooth portion. Install the back plate 5 from the notch 222 of the movable side plate 220 and install it in the dovetail groove of the core punching sheet 1. Push the movable side plate 220 until it is close to the upper tooth pressure plate 3, and install the pressure plate assembly 400. After installation, the upper pressure plate 410 and the lower pressure plate 420 are kept horizontal, and the clamping bolts 460 in the pressure plate assembly 400 are tightened with a wrench to make the lower pressure plate 420 fit tightly with the core punching sheet 1 to prevent the core punching sheet 1 from deforming and ensure that the core punching sheet 1 fits with the bottom plate 100.

[0061] Finally, install the cylinder assembly 300. Install the cylinder assembly 300 on the movable side plate 220 and the fixed side plate 210. The first top block 320 and the second top block 330 are respectively stuck in the U-shaped grooves of the fixed side plate 210 and the movable side plate 220. The cylinder frame 310 needs to be kept horizontal. Pre-press and maintain the pressure on the synchronous power part 340. Press the core punching sheet 1 through the movable side plate 220, install the tensioning screw 2, and use a torque wrench to symmetrically tighten the nuts under the pressure. The tightening sequence is symmetrical from the middle to both sides, and then relieve the pressure.

[0062] Preferably, the guide rod 450 is fixedly connected to the lower pressure plate 420, the upper pressure plate 410 is provided with a guide hole for the guide rod 450 to pass through, the clamping bolt 460 is threadedly connected to the upper pressure plate 410, and the clamping bolt 460 is used to support the lower pressure plate 420 that is attached to the core punching sheet 1.

[0063] The guide rod 450 is used for guiding to ensure that the lower pressure plate 420 and the upper pressure plate 410 are always in a parallel state. In this embodiment, the guide rod 450 is located on both sides of the clamping bolt 460. The clamping bolt 460 is used to support the lower pressure plate 420 that is attached to the core punching sheet 1 so that the end of the core punching sheet 1 is attached to the upper end surface of the base plate 100.

[0064] Preferably, the fixed side plate 210 is detachably connected to the bottom plate 100 via a connecting piece, and the connecting piece is located inside the countersunk hole 211 .

[0065] In this embodiment, the fixed side plate 210 is connected to the bottom plate 100 via a connecting piece. The connecting piece makes the fixed side plate 210 and the bottom plate 100 relatively detachable. The connecting piece is located inside the countersunk hole 211 .

[0066] Preferably, the connecting member is a bolt.

[0067] It should be noted that the connecting member is preferably a bolt, which can facilitate the installation and disassembly of the fixed side plate 210 and the bottom plate 100, and the bolt and the countersunk hole 211 can be set correspondingly.

[0068] Preferably, eye holes 120 are provided around the bottom plate 100 , and the eye holes 120 are used to move the bottom plate 100 .

[0069] It is understandable that the base plate 100 is provided with eye holes 120 around it for moving the base plate 100 , and the number and size of the eye holes 120 can be adjusted according to actual conditions.

[0070] Preferably, the notch 110 is a T-shaped slot.

[0071] In this embodiment, the notch 110 is preferably a T-slot, and the T-shaped insert 221 connected to the movable side plate 220 can move along the T-slot. The shape of the notch 110 can also be adjusted according to actual conditions as long as the above purpose can be achieved.

[0072] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0073] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0074] The above is a detailed introduction to the embodiments provided by the utility model. This article uses specific examples to illustrate the principles and implementation methods of the utility model. The description of the above embodiments is only used to help understand the method and core ideas of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A linear motor stator core lamination device, characterized in that: include: The bottom plate (100) is a plate structure, and the bottom plate (100) is provided with a notch (110); A side plate assembly, comprising a fixed side plate (210) and a movable side plate (220) vertically connected to both sides of the bottom plate (100), wherein the movable side plate (220) is movably connected to the slot (110), and both the fixed side plate (210) and the movable side plate (220) are provided with a through hole (230) and a U-shaped groove, and a tensioning screw (2) is passed through the through hole (230) to fix the stacked multiple iron core punching sheets (1); The oil cylinder assembly (300) comprises an oil cylinder frame (310), a first top block (320), a second top block (330) and a power piece (340), wherein the first top block (320) and the second top block (330) are respectively located at the ends of the oil cylinder frame (310) and connected to the U-shaped groove, and the power piece (340) is arranged on the second top block (330), and the power piece (340) is used to control the distance between the movable side plate (220) and the fixed side plate (210); A pressure plate assembly (400) is fixed to the bottom plate (100) and the fixed side plate (210), and comprises an upper pressure plate (410) and a lower pressure plate (420) which are parallel to each other, wherein the lower pressure plate (420) can be moved close to or away from the bottom plate (100) and is used to press the core punching sheet (1); The positioning assembly (500) comprises a positioning key (510) and a groove sample rod (520), wherein the positioning key (510) is connected to the fixed side plate (210), and the groove sample rod (520) is used to ensure that the groove shape of the core punching sheet (1) is neat.

2. The linear motor stator core lamination device according to claim 1, characterized in that: There are a plurality of the oil cylinder assemblies (300), and the plurality of the oil cylinder assemblies (300) are evenly arranged on the fixed side plate (210) and the movable side plate (220). The plurality of the oil cylinder assemblies (300) are connected to the same hydraulic pump and the same oil cylinder through oil pipes, so as to ensure that the plurality of the oil cylinder assemblies (300) operate synchronously.

3. The linear motor stator core lamination device according to claim 1, characterized in that: The fixed side plate (210) is further provided with a countersunk hole (211) and a key slot, wherein the countersunk hole (211) is located at the top of the fixed side plate (210), and the key slot is used to position the positioning key (510).

4. The linear motor stator core lamination device according to claim 1, characterized in that: The top and bottom of the movable side plate (220) are respectively provided with a notch (222) and an insert (221); the insert (221) is snap-fitted to the notch (110) to enable the movable side plate (220) to move along the extending direction of the notch (110).

5. The linear motor stator core lamination device according to claim 1, characterized in that: The pressure plate assembly (400) also includes a first screw rod (430), a second screw rod (440), a guide rod (450) and a clamping bolt (460), wherein the first screw rod (430) and the second screw rod (440) are respectively fixed to the base plate (100) and the fixed side plate (210) and are respectively connected to the two ends of the upper pressure plate (410).

6. The linear motor stator core lamination device according to claim 5, characterized in that: The guide rod (450) is fixedly connected to the lower pressure plate (420), and the upper pressure plate (410) is provided with a guide hole for the guide rod (450) to pass through. The clamping bolt (460) is threadedly connected to the upper pressure plate (410), and the clamping bolt (460) is used to support the lower pressure plate (420) that is attached to the core punching sheet (1).

7. The linear motor stator core lamination device according to claim 3, characterized in that: The fixed side plate (210) is detachably connected to the bottom plate (100) via a connecting piece, and the connecting piece is located inside the countersunk hole (211).

8. The linear motor stator core lamination device according to claim 7, characterized in that: The connecting piece is specifically a bolt.

9. The linear motor stator core lamination device according to claim 1, characterized in that: The bottom plate (100) is provided with eyelet holes (120) around its periphery, and the eyelet holes (120) are used to move the bottom plate (100).

10. The linear motor stator core lamination device according to any one of claims 1 to 9, characterized in that: The notch (110) is specifically a T-shaped slot.

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