Motor stator punching sheet overlying device

Abstract

The utility model relates to the technical field of stator punching sheet processing, in particular to a motor stator punching sheet overlying device, which comprises a plurality of stator punching sheets, a plurality of groups of die punching assemblies for providing active constraint die pressing for the plurality of stator punching sheets, and a bearing material returning mechanism arranged right below the plurality of groups of die punching assemblies, and the bearing and material returning mechanism is arranged on a working platform of the machine tool. The bearing and material returning mechanism is preassembled on the working table of the machine tool, and the plurality of stamping dies which are stacked in the vertical direction are arranged on the bearing and material returning mechanism, so that exposed gaps of two adjacent stamping dies can be matched with two cleaning pads to provide surface cleaning treatment before and after punching on the stator punching sheet; and after the punching end head descends along the plurality of stacked punching dies in a stable pressure manner, the stator punching sheet subjected to active die pressing constraint can be subjected to burr-free efficient punching operation.

Description

Technical Field

[0001] The utility model relates to the technical field of stator punching processing, in particular to a motor stator punching lamination stacking device. Background Art

[0002] The stator laminations are processed and laminated to form the stator core, which mainly cooperates with the rotor iron stator and the air gap between the rotors to form the complete magnetic circuit of the motor.

[0003] At present, after the stator punching sheets are stacked and punched by the punching end, the stacked stator cuts are all facing downward. Since the stacked stators will produce a certain degree of ductility under pressure, and then with the continuous pressure of the punching end, the central stator punching sheet is prone to certain deformation, which will cause the direction of the punching sheet cut or burr to change. At the same time, the waste chips will be punched and carried by the punching end, causing secondary damage to the stacked stator punching sheets.

[0004] In view of this, a motor stator punching lamination stacking device is designed to solve the above problems. Utility Model Content

[0005] The utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] To this end, the technical solution adopted in this utility model is:

[0007] A motor stator punching lamination lamination device includes a plurality of stator punching sheets, a plurality of die-punching assemblies that provide active constraint molding for the plurality of stator punching sheets, and a load-bearing and material-removing mechanism disposed directly below the plurality of die-punching assemblies, wherein the load-bearing and material-removing mechanism is disposed on a working platform of a machine tool; the die-punching assemblies include a stamping die, a first cleaning pad disposed in an annular groove at the top of the stamping die, a second cleaning pad disposed in an annular groove at the bottom of the stamping die, and a first calibration piece and a second calibration piece disposed on both sides of the top of the stamping die; the load-bearing and material-removing mechanism includes a pressure pad disposed on a bottom group of die-punching assemblies, a base disposed at the bottom of the pressure pad, and a pusher plate for pushing out the plurality of stator punching sheets.

[0008] In a preferred example, the present invention can be further configured as follows: two ends symmetrically distributed are provided on both sides of the stamping die;

[0009] A latch is provided at the top of the end head, and a T-shaped plug is provided at the bottom of the end head;

[0010] A through hole is provided inside the end head, and a limiting guide rod is arranged in the through hole.

[0011] In a preferred example, the present invention can be further configured as follows: both the first calibration piece and the second calibration piece are provided with end plates;

[0012] One end of the limiting guide rod is fixedly installed in the end plate.

[0013] In a preferred embodiment, the present invention can be further configured as follows: a gasket is provided at the other end of the limiting guide rod, and a compression spring is provided outside the limiting guide rod;

[0014] One end of the compression spring bears pressure on the gasket, and the other end of the compression spring bears pressure on the end head.

[0015] In a preferred example, the present invention can be further configured as follows: the first cleaning pad and the second cleaning pad are both made of thickened linen.

[0016] In a preferred example, the present invention can be further configured as follows: the material carrying and material returning mechanism further includes a guide assembly;

[0017] The guide assembly includes a cross rail mounted on the base, a baffle mounted on the inner end of the cross rail, and a spring disposed in an inner slideway of the cross rail;

[0018] A shifting rod is provided in the slideway inside the transverse rail.

[0019] In a preferred example, the present invention can be further configured as follows: a clamp is provided on the outside of the shifting rod, a backing plate is provided on the base, and a hydraulic component is provided on the backing plate;

[0020] The clamp is mounted on the outer end of the hydraulic sub-rod in the hydraulic component.

[0021] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0022] 1. The utility model pre-installs a load-bearing and material-returning mechanism on the work surface of the machine tool, and provides a plurality of stamping dies stacked in the vertical direction on the load-bearing and material-returning mechanism. At this time, the exposed gap between the two adjacent stamping dies can cooperate with two cleaning pads to provide a cleaning treatment for the stator punching sheet before and after punching. As the punching end head descends along the stacked multiple stamping dies at a steady pressure, the stator punching sheet with active mold pressing constraint can obtain a burr-free and efficient punching operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the new stack to be processed in the present invention;

[0024] Figure 2 This is a schematic diagram of the material-carrying and material-returning mechanism of the present invention;

[0025] Figure 3 is a schematic diagram of the guide assembly of the present utility model;

[0026] Figure 4 It is a partial explosion diagram of the utility model;

[0027] Figure 5 This is a schematic diagram of the die punching assembly of the present invention.

[0028] Reference numerals:

[0029] 100, material-carrying and material-removing mechanism; 110, base; 120, pressure-bearing pad; 130, backing plate; 140, hydraulic component; 150, guide assembly; 151, cross rail; 152, baffle; 153, spring; 160, chuck; 170, lever; 180, push plate;

[0030] 200, die punch assembly; 210, stamping die; 220, end head; 230, first cleaning pad; 240, second cleaning pad; 250, first calibration piece; 260, limit guide rod; 270, compression spring; 280, second calibration piece;

[0031] 300. Stator punching. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features therein can be combined with each other unless there is any conflict.

[0033] It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention.

[0034] A motor stator punching lamination stacking device provided by some embodiments of the present invention will be described below with reference to the accompanying drawings. Example 1

[0035] Combine Figure 1-Figure 5 As shown, the utility model provides a motor stator punching lamination lamination device, including a plurality of stator punching sheets 300, a plurality of die-punching assemblies 200 that provide active constraint molding for the plurality of stator punching sheets 300, and a carrying and returning mechanism 100 arranged directly below the plurality of die-punching assemblies 200, and the carrying and returning mechanism 100 is arranged on the working platform of the machine tool.

[0036] The die assembly 200 includes a stamping die 210, a first cleaning pad 230 disposed in a ring groove at the top of the stamping die 210, a second cleaning pad 240 disposed in a ring groove at the bottom of the stamping die 210, and a first calibration piece 250 and a second calibration piece 280 disposed on both sides of the top of the stamping die 210.

[0037] Two symmetrically distributed end caps 220 are provided on both sides of the stamping die 210;

[0038] A latch is provided at the top of the end 220, and a T-shaped plug is provided at the bottom of the end 220;

[0039] A through hole is formed inside the end cap 220, and a limiting guide rod 260 is provided in the through hole.

[0040] The material-carrying and material-removing mechanism 100 includes a guide assembly 150 , a pressure pad 120 disposed on a bottom set of die assemblies 200 , a base 110 disposed at the bottom of the pressure pad 120 , and a pusher plate 180 for pushing out a plurality of stator punching sheets 300 .

[0041] Before stacking the stator punching sheets, it is necessary to check the models and specifications of the punching sheets, buckles and pressing rings, and then use wire to bundle the stacked stator punching sheets. Then, divide the bundled stator punching sheets into an even number of parts and arrange them along the center line of the punching end. As the punching end continues to apply pressure to the stacked stator punching sheets, the center stator punching sheet will be deformed to a certain extent under the influence of pressure. In severe cases, the cut and burr direction of the center stator punching sheet will change. At the same time, the waste material that is punched will cause secondary damage to the stator punching sheet with burrs.

[0042] The device provides multiple independent and actively constrained die assemblies 200 for multiple stator punching sheets 300, and uses multiple bolts to fix the base 110 on the workbench of the machine tool. At this time, the multiple sets of die assemblies 200 supported by the pressure pad 120 can provide an effective molding platform for multiple stator punching sheets 300 to be punched. After the stator punching sheet 300 is delivered along the gap between two adjacent stamping dies 210, the first cleaning pad 230 and the second cleaning pad 240 set on the stamping die 210 can wipe the stains on the surface of the stator punching sheet 300 in an expanded state. , until the stator punching sheet 300 obtains the calibration limit of the first calibration piece 250 and the second calibration piece 280. As the punching end of the machine tool descends at a uniform speed, the punching end can quickly punch the multiple stacked stator punching sheets 300 along the holes inside the stacked multiple stamping dies 210. At this time, the actively constrained stator punching sheet 300 can avoid skewness or burrs on the cut. As the hydraulic rod in the hydraulic part 140 contracts, the pulled chuck 160 will drive the lever 170 and multiple push plates 180 to quickly push out the multiple stator punching sheets 300 after punching. Example 2

[0043] Combine Figure 2-Figure 5 As shown, based on embodiment 1, the guide assembly 150 includes a horizontal rail 151 installed on the base 110, a baffle 152 installed on the inner end of the horizontal rail 151, and a spring 153 set in the inner slide of the horizontal rail 151.

[0044] Preferably, the inner end of the cross rail 151 is fixedly installed in the base 110, and a sliding groove is provided on the top of the cross rail 151, and the cross rail 151 is used to provide a stable reset platform for the lateral extension of the shift rod 170.

[0045] A lever 170 is provided in the slideway inside the cross rail 151;

[0046] The outside of the lever 170 is provided with a clamp 160 , a backing plate 130 provided on the base 110 , and a hydraulic component 140 provided on the backing plate 130 ;

[0047] The clamp 160 is mounted on the outer end of the hydraulic sub-rod in the hydraulic component 140 .

[0048] Preferably, the number of push plates 180 needs to be determined according to the number of stacked stamping dies 210, and an arc-shaped notch is provided at the inner end of the push plate 180. When the push plate 180 is extended outward to its maximum state, the arc-shaped notch at the inner end of the push plate 180 can provide sufficiently stable bearing force for the stator punching sheet 300.

[0049] Preferably, buckles are provided on the tops of the columns on both sides of the pressure pad 120 to provide a quick assembly platform for a group of die punch components 200 placed at the bottom. Example 3

[0050] Combine Figure 1 and Figure 5 As shown, based on Example 1, end plates are provided on the first calibration member 250 and the second calibration member 280 .

[0051] Preferably, the first calibration piece 250 and the second calibration piece 280 may form a U-shaped structure and be used to provide calibration constraints for the stator punching 300 .

[0052] One end of the limiting guide rod 260 is fixedly installed in the end plate;

[0053] A gasket is provided at the other end of the limiting guide rod 260 , and a compression spring 270 is provided outside the limiting guide rod 260 .

[0054] Preferably, the two end heads 220 are fixedly mounted on both sides of the stamping die 210, and the two end heads 220 are used to provide the two compression springs 270 with a bearing force for resetting;

[0055] The inside of the stamping die 210 is provided with a groove adapted to the slot of the stator punching sheet.

[0056] One end of the compression spring 270 bears pressure on the gasket, and the other end of the compression spring 270 bears pressure on the end head 220;

[0057] The first cleaning pad 230 and the second cleaning pad 240 are both made of thick linen.

[0058] Preferably, the first cleaning pad 230 and the second cleaning pad 240 can be made of thickened cotton layer, thickened sponge and other materials according to actual usage requirements, and cleaning liquid can be injected into the first cleaning pad 230 and the second cleaning pad 240 to brush away stains on the surface of the stator punching sheet 300.

[0059] The working principle and use process of the present invention are as follows: the hydraulic component 140 is pre-operated until the hydraulic sub-rod inside it is extended outward to its longest state, and the spring 153 provided in the inner cavity of the cross rail 151 provides a reset thrust for the lever 170. At this time, the column head at the bottom end of the lever 170 is compressed and moves horizontally to the outermost end of the cross rail 151. At this time, the multiple pusher plates 180 evenly distributed on the lever 170 will be withdrawn outward from the top of the multiple stamping dies 210. At this time, the inner ends of the pusher plates 180 cooperate with the first calibration component 250 and the second calibration component 280 to form a U-shaped frame that can provide precise calibration for the stator punching 300.

[0060] Then, the base 110 is fixedly installed on the working platform of the stamping machine with bolts. During this process, the center of the stamping head of the stamping machine needs to be calibrated with the pressure pad 120. Then, the stator punching sheet 300 to be punched is placed on the top of each stamping die 210 in turn. At this time, the first cleaning pad 230 and the second cleaning pad 240 set on the top and bottom of the stamping die 210 can clean the top and bottom surfaces of the inserted stator punching sheet 300, and the cleaning pad set on the stamping die 210 can clean the top and bottom surfaces of the inserted stator punching sheet 300. 0 The push plate 180, the first calibration piece 250 and the second calibration piece 280 at the top of the U-shaped frame can limit the stator punching 300. As the punching end head falls down along the port of the topmost punching die 210, the punching end head can punch the multiple stacked stator punching sheets 300. While avoiding the formation of burrs on the bottom of the stator punching sheet 300 due to pressure in the stacked state, it can also prevent impurities such as waste chips from interfering with the punching of the stator punching sheet 300.

[0061] In this utility model, the term "plurality" refers to two or more, unless otherwise expressly defined. The term "and / or" as used herein includes any and all combinations of one or more of the relevant listed items. Terms such as "install," "connect," "connect," and "fix" should be understood broadly. For example, "connect" can mean a fixed connection, a detachable connection, or an integral connection; "connected" can mean a direct connection or an indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0062] It should be noted that when an element is referred to as being "assembled to," "mounted to," "fixed to," or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0063] Throughout this specification, terms such as "one embodiment," "some embodiments," or "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, illustrative uses of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0064] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A motor stator punching lamination lamination device, comprising a plurality of stator punching laminations (300), characterized in that: It also includes multiple sets of die-punching assemblies (200) that provide active constrained die pressing for multiple stator punching sheets (300) and a material-carrying and material-removing mechanism (100) disposed directly below the multiple sets of die-punching assemblies (200), wherein the material-carrying and material-removing mechanism (100) is disposed on a working platform of a machine tool; The die punch assembly (200) comprises a punching die (210), a first cleaning pad (230) disposed in a top annular groove of the punching die (210), a second cleaning pad (240) disposed in a bottom annular groove of the punching die (210), and a first calibration piece (250) and a second calibration piece (280) disposed on both sides of the top of the punching die (210); The bearing and material-removing mechanism (100) comprises a pressure-bearing pad (120) arranged on a bottom set of die punching assemblies (200), a base (110) arranged at the bottom of the pressure-bearing pad (120), and a pusher plate (180) for pushing out a plurality of stator punching sheets (300).

2. The motor stator punching lamination lamination device according to claim 1, characterized in that: Two symmetrically distributed end heads (220) are provided on both sides of the stamping die (210); A latch is provided at the top of the end head (220), and a T-shaped plug is provided at the bottom of the end head (220); A through hole is provided inside the end head (220), and a limiting guide rod (260) is provided in the through hole.

3. The motor stator punching lamination lamination device according to claim 2, characterized in that: Both the first calibration piece (250) and the second calibration piece (280) are provided with end plates; One end of the limiting guide rod (260) is fixedly mounted in the end plate.

4. The motor stator punching lamination lamination device according to claim 2, characterized in that: A gasket is provided at the other end of the limiting guide rod (260), and a compression spring (270) is provided outside the limiting guide rod (260); One end of the compression spring (270) bears pressure on the gasket, and the other end of the compression spring (270) bears pressure on the end head (220).

5. The motor stator punching lamination lamination device according to claim 1, characterized in that: The first cleaning pad (230) and the second cleaning pad (240) are both made of thick linen.

6. The motor stator punching lamination lamination device according to claim 1, characterized in that: The material-carrying and material-returning mechanism (100) further includes a guide assembly (150); The guide assembly (150) includes a transverse rail (151) mounted on the base (110), a baffle (152) mounted on the inner end of the transverse rail (151), and a spring (153) disposed in an inner slideway of the transverse rail (151); A shifting rod (170) is provided in the slideway inside the transverse rail (151).

7. The motor stator lamination lamination lamination device according to claim 6, characterized in that: The outside of the shifting rod (170) is provided with a clamp (160), a backing plate (130) provided on the base (110), and a hydraulic component (140) provided on the backing plate (130); The clamp (160) is mounted on the outer end of the hydraulic sub-rod in the hydraulic component (140).

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