Punching machining equipment for motor steel sheet

Abstract

The utility model discloses a motor steel sheet punching machining device which comprises a punching machine body and a material guiding table, the material guiding table is arranged on the discharging side of the punching machine body, and a plurality of first blanking grooves and second blanking grooves are formed in the material guiding table in the conveying direction. The plurality of first blanking grooves and the plurality of second blanking grooves correspond to the arrangement of the steel sheets on the steel belt respectively; a blocking plate is arranged in each first blanking groove, and a scraping assembly used for scraping waste materials falling on the surfaces of the blocking plates is arranged below the material guide table. According to the motor steel sheet punching machining equipment, center waste and steel sheets are sequentially separated from steel belts through the two groups of different blanking grooves, the blanking grooves are blocked by the blocking plates so as to ensure normal feeding, and materials are conveniently pushed down and collected in a unified mode through the material pushing assembly; and a material pushing rod is arranged to separate the center waste materials and the steel sheets which are not completely separated from the steel belt, so that the production link is optimized, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of electric motor steel sheet manufacturing technology, specifically to a punching and cutting equipment for electric motor steel sheets. Background Technology

[0002] Electric motor steel sheets are parts used in electric motors, and currently, stamping equipment is widely used for processing them. With the advancement of technology and the development of the times, existing stamping equipment has also been greatly improved, significantly increasing the efficiency of processing electric motor steel sheets.

[0003] Chinese Patent Publication No. CN221817135U discloses a rotor lamination stamping device. This device, through a pressure-bearing mechanism, effectively unloads and transfers the stamped laminations. A power assembly drives the telescopic rods on both sides of the rotary table to rotate, which in turn drives a moving belt to achieve intermittent feeding. The laminations are then fed to the stamping limiting table via a clamping rack. A cylinder drives the pressure plate at the center of the stamping limiting table to move, aligning and bearing the laminations during stamping. Finally, the stamped laminations fall onto a trolley for transfer. However, in the process of producing steel sheets for electric motors, such as... Figure 7 As shown, since the steel sheet 20 has a ring structure, when the steel sheet 20 is punched off the steel strip 19, a central scrap 21 will be left in the inner ring of the steel sheet 20. The central scrap 21 is separate from the external scrap. Due to the lack of a mechanism to remove the central scrap 21, when the processed steel sheet 20 is separated from the steel strip 19, the central scrap 21 will also fall into the collection box along with the steel sheet 20. A secondary separation of the steel sheet 20 and the central scrap 21 is required, which increases the number of production steps and affects production efficiency. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a steel sheet punching and processing equipment for electric motors, which solves the problem that existing steel sheet punching and processing devices do not treat the central waste material in the center of the steel sheet during the production process. As a result, the finished steel sheet and the central waste material fall into the finished product collection box at the same time, requiring the steel sheet and the central waste material to be separated later.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: A steel sheet punching and cutting equipment for electric motors includes a punch press body and a guide table. The guide table is disposed on the discharge side of the punch press body and its upper surface is flush with the worktable of the punch press body. The end of the guide table is in contact with the edge of the worktable.

[0006] The guide platform is provided with multiple first chute troughs for central waste to fall and multiple second chute troughs for steel sheets to fall along the conveying direction. The diameter of the first chute trough is smaller than the diameter of the second chute trough. The multiple first chute troughs and multiple second chute troughs correspond to the arrangement of steel sheets on the steel strip. Each first chute trough can be equipped with a sealing plate that can be raised and lowered to block the first chute trough. A scraping assembly for scraping off the waste falling on the surface of the sealing plate is provided below the guide platform.

[0007] Furthermore, it also includes a movable frame, which is disposed below the guide table and moves up and down synchronously with the pressure plate of the punch press body. The movable frame includes multiple mounting rods and two mounting plates. The two mounting plates are respectively located on the front and rear sides below the guide table. The multiple mounting rods are laterally spaced between the two mounting plates along the conveying direction. Each mounting rod is equipped with multiple sealing plates, and each sealing plate corresponds to one of the first discharge troughs.

[0008] Furthermore, the scraping assembly includes a cylinder and a scraping frame that slides along the bottom of the guide platform. The scraping frame includes two connecting plates and multiple pushing plates. The multiple pushing plates are spaced apart and located between the two connecting plates. The cylinder is fixedly connected to the outermost pushing plate. When the moving frame moves downward, the pushing plate pushes down the central waste material at the top of the sealing plate.

[0009] Furthermore, a lifting frame that moves synchronously with the pressure plate is provided on one side of the punch press body and above the guide table. Multiple first push rods and multiple second push rods are vertically arranged at the bottom of the lifting frame. Each first push rod corresponds to a first discharge groove, and each second push rod corresponds to a second discharge groove.

[0010] Furthermore, a collection box is provided below the first material discharge chute.

[0011] Furthermore, a placement seat is provided below the second material discharge chute, and a collection rack for collecting steel sheets is provided on the placement seat.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] (1) The electric motor steel sheet punching and processing equipment collects steel sheets and central scrap separately by opening two different sets of discharge troughs on the steel sheet conveying path. At the same time, push rods corresponding to the discharge troughs are set above the discharge troughs to facilitate pushing steel sheets and central scrap that have not been completely separated from the steel strip into the discharge troughs, thus optimizing the processing steps and improving work efficiency.

[0014] (2) The electric motor steel sheet punching and processing equipment is equipped with a blocking plate to block the material discharge chute. At the same time, the blocking plate can move up and down. When it moves to the highest position, the blocking plate is flush with the opening of the material discharge chute to prevent the steel sheet from being stuck at the opening of the material discharge chute during the conveying process, thus affecting the normal material flow and avoiding delays in work due to the problem of material jamming. Attached Figure Description

[0015] Figure 1 This is a front sectional view of the present invention;

[0016] Figure 2 This is the front view of the present invention;

[0017] Figure 3 This is a side view of the present invention;

[0018] Figure 4 This is a top view of the movable frame and scraper frame of this utility model;

[0019] Figure 5 This is a top view of the movable frame of this utility model;

[0020] Figure 6 This is a top view of the scraper frame of this utility model;

[0021] Figure 7 This is a schematic diagram of the steel sheets arranged on the steel strip of this utility model.

[0022] In the diagram: 1-Punch press body, 2-Pressure plate, 3-Workbench, 4-Guide table, 5-Lifting frame, 6-Sealing plate, 7-Mounting rod, 8-Mounting plate, 9-Connecting plate, 10-Pushing plate, 11-Cylinder, 12-Connecting rod, 13-First push rod, 14-Second push rod, 15-Collection frame, 16-Collection box, 17-First drop chute, 18-Second drop chute, 19-Steel strip, 20-Steel sheet, 21-Central scrap. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-3 This utility model provides a technical solution: a steel sheet punching and processing equipment for electric motors includes a punching machine body 1 and a guide table 4. The guide table 4 is located on the discharge side of the punching machine body 1 and its upper surface is flush with the worktable 3 of the punching machine body 1. The end of the guide table 4 is attached to the edge of the worktable 3.

[0025] The punch press body 1 is equipped with a pressure plate 2, and a die for punching steel sheets is provided at the bottom of the pressure plate 2. The punch press body 1 is equipped with a hydraulic cylinder for driving the pressure plate 2 to move up and down. A feeding device is provided on the feeding side of the punch press body 1. The feeding device is used to unwind the steel coil and flatten it into a steel strip 19, and then accurately convey the steel strip 19 to the bottom of the die of the punch press body 1.

[0026] The guide platform 4 is provided with multiple first discharge troughs 17 for central waste 21 to fall and multiple second discharge troughs 18 for steel sheets to fall. The diameter of the first discharge trough 17 is smaller than the diameter of the second discharge trough 18. The multiple first discharge troughs 17 and multiple second discharge troughs 18 correspond to the arrangement of steel sheets on the steel strip. Each first discharge trough 17 can be equipped with a sealing plate 6 that can be raised and lowered inside. A scraping assembly for scraping off the waste falling on the surface of the sealing plate 6 is provided below the guide platform 4.

[0027] like Figure 1 The image shown is a front view of the device, with the conveying direction from right to left. The punching dies are arranged in multiple rows along the front-to-back direction and multiple columns along the left-to-right direction at the bottom of the pressure plate 2. Adjacent dies are closely spaced, and the effect after punching is as follows: Figure 7 As shown. The steel strip 19 is intermittently conveyed to the left, and the conveying length is adapted to the width of the range formed by multiple dies.

[0028] The first discharge chute 17 and the second discharge chute 18 are arranged in the same layout. The diameter of the first discharge chute 17 is slightly larger than the diameter of the central waste 21, so that the central waste 21 can fall down. The diameter of the second discharge chute 18 is slightly larger than the diameter of the steel sheet 20, so that the steel sheet 20 can fall down normally. The top of the sealing plate 6 is also circular and its diameter is slightly smaller than the diameter of the first discharge chute 17.

[0029] The diameter of the first discharge chute 17 is smaller than the diameter of the steel sheet 20, so that the steel sheet 20 will not fall when passing over the first discharge chute 17 and can move normally to the left.

[0030] After the punching process, the steel strip 19, along with the punched steel sheet 20 and the central scrap 21, continues to move to the left along the conveying direction. When it moves to the top of the first drop chute 17, it pauses briefly. At this time, the central scrap 21 is exactly on the sealing plate 6. At the same time, the pressure plate 2 begins to move downward to prepare to punch the steel strip 19 again. The sealing plate 6 also moves downward to the bottom of the guide table 4 and is scraped off by the scraping assembly. After the pressure plate 2 completes one punching, it resets upward. The sealing plate 6 resets upward to the same position as the guide table 4.

[0031] When the top of the sealing plate 6 is on the same horizontal plane as the guide plate 4, there is only a very small gap. When the steel belt 19 passes through the first drop trough 17 while moving along the conveying direction, the steel sheet 20 will not tilt and fall into the first drop trough 17 and get stuck, affecting the normal leftward movement of the steel sheet 20.

[0032] like Figure 4 and 5 As shown, it also includes a movable frame, which is located below the guide table 4 and moves up and down synchronously with the pressure plate 2 of the punch body 1. The movable frame includes multiple mounting rods 7 and two mounting plates 8. The two mounting plates 8 are located on the front and rear sides below the guide table 4, respectively. The multiple mounting rods 7 are arranged laterally between the two mounting plates 8 along the conveying direction. Each mounting rod 7 is equipped with multiple sealing plates 6, and each sealing plate 6 corresponds to a first discharge chute 17.

[0033] Multiple mounting rods 7 are fixedly connected at both ends to a mounting plate 8 to form a movable frame. When the movable frame is raised to its highest position, the sealing plate 6 can rise to the top of the first material drop chute 17, flush with the upper surface of the guide platform 4, to ensure normal material transportation. When the movable frame is lowered to its lowest position, the sealing plate 6 can fall to the bottom of the first material drop chute 17, below the guide platform 4. The multiple sealing plates 6 on each mounting rod 7 are evenly spaced along the front-to-back direction.

[0034] like Figure 6 As shown, the scraping assembly includes a cylinder 11 and a scraping frame that slides along the bottom of the guide platform 4. The scraping frame includes two connecting plates 9 and multiple pusher plates 10. The multiple pusher plates 10 are spaced apart and located between the two connecting plates 9. The cylinder 11 is fixedly connected to the outermost pusher plate 10. When the moving frame moves downward, the pusher plate 10 pushes down the central waste material 21 at the top of the sealing plate 6.

[0035] Multiple pusher plates 10 are fixedly connected at both ends to a connecting plate 9 to form a scraper frame, and so on. Figure 4 Each connecting plate 9 is located between a mounting plate 8 and the outermost sealing plate 6, and the distance between each pusher plate 10 and its left-side mounting rod 7 is equal.

[0036] The movable frame is always located below the scraper. When the movable frame is raised to its highest point, the sealing plate 6 is flush with the top of the guide platform 4. When the movable frame is lowered to its lowest point, the sealing plate 6 is located below the scraper. The bottom of the scraper and the top of the sealing plate 6 can contact each other. When the scraper moves horizontally, each pusher plate 10 pushes down the central waste material 21 on a row of sealing plates 6 and it falls between two adjacent mounting rods 7.

[0037] A lifting frame 5 that moves synchronously with the pressure plate 2 is provided on one side of the punch press body 1 and above the guide table 4. Multiple first push rods 13 and multiple second push rods 14 are vertically arranged at the bottom of the lifting frame 5. Each first push rod 13 corresponds to a first drop groove 17, and each second push rod 14 corresponds to a second drop groove 18.

[0038] like Figure 1 As shown, the right side of the lifting frame 5 can be fixedly connected to the discharge side of the pressure plate 2. The bottom ends of the first push rod 13 and the second push rod 14 are both round, and the distance between the bottom of the first push rod 13 and the top of the sealing plate 6 is always fixed. At the same time, the diameter of the bottom of the first push rod 13 is slightly smaller than the diameter of the first discharge groove 17, and the diameter of the bottom of the second push rod 14 is slightly smaller than the diameter of the second discharge groove 18.

[0039] The lifting frame 5 is synchronously driven to move up and down by utilizing the up-and-down movement of the pressure plate 2 itself during operation, thus eliminating the need for additional drive devices. Furthermore, to prevent some of the central scrap 21 and steel sheet 20 from not completely separating from the steel strip 19, when the lifting frame 5 moves downwards, the first push rod 13 and the second push rod 14 respectively push the central scrap 21 and steel sheet 20 below them into the dropping chute. Since the distance between the bottom of the first push rod 13 and the top of the sealing plate 6 is fixed, the first push rod 13 will not contact the sealing plate 6 when pushing downwards, while the pushed-down central scrap 21 will fall onto the top of the sealing plate 6.

[0040] The movable frame is fixedly connected to the lifting frame 5 via connecting rod 12, so that both the movable frame and the lifting frame 5 rise and fall synchronously with the pressure plate 2. Alternatively, components such as cylinders can be installed to drive the movable frame and the lifting frame 5 to rise and fall.

[0041] A collection box 16 is provided below the first material discharge chute 17.

[0042] When the central waste 21 falls from the first discharge chute 17 onto the top of the sealing plate 6, the pusher plate 10 will push it down from the top of the sealing plate 6 and collect it in the collection box 16 below.

[0043] A placement seat is provided below the second material discharge chute 18, and a collection rack 15 for collecting steel sheets is provided on the placement seat.

[0044] like Figure 1As shown, the collection rack 15 can be composed of multiple guide columns and a mounting base. The bottom ends of the multiple guide columns are fixedly connected to the upper surface of the mounting base. The top of each guide column corresponds to a second material drop trough 18. Each guide column is inserted into a second material drop trough 18 from bottom to top, and the top of the guide column is flush with the top of the second material drop trough 18. The diameter of the guide column is adapted to the inner diameter of the steel sheet 20, so that when the steel sheet 20 falls, it can be collected by slipping onto the guide column to prevent it from scattering.

[0045] When the second pusher rod 14 pushes the steel sheet 20 down from the second discharge trough 18, the steel sheet 20 will be placed on the guide post. After collecting a certain amount of steel sheets, the placement seat can be removed, and the collection frame 15 can be moved downwards to move the guide post out of the second discharge trough 18. After removing the collection frame 15, the collected steel sheets 20 can be collected and sorted.

[0046] The mounting base can be replaced with other lifting devices, so that the steel sheet 20 can be removed without manually lowering the guide column; wheels can be installed at the bottom of the mounting base or it can be replaced with an existing manual hydraulic cart for better collection and transportation of the steel sheet 20.

[0047] During operation, the worker inserts the steel strip 19 from the feed side. Driven by the feeding device, the steel strip 19 moves onto the worktable 3. Then, the pressure plate 2 drives the punching die downwards to punch and then moves upwards to reset. Meanwhile, the steel strip 19 continues to move to the left along the conveying direction. When the steel strip reaches above the first discharge chute 17, it pauses briefly, and the pressure plate 2 begins a new round of punching. At this time, the lifting frame 5 is driven downwards by the pressure plate 2 and moves downwards synchronously. The central scrap 21 on the steel strip 19 falls into the top of the sealing plate 6 in the first discharge chute 17, and each un-filled piece... The central scrap 21, which is completely separated from the steel strip 19, will be pushed by the first pusher rod 13 above and fall on the top of the sealing plate 6. At this time, the sealing plate 6 will move down with the central scrap 21 on top to the bottom of the pusher plate 10. Then the cylinder 11 will start to extend to the left. The cylinder 11 drives the pusher plate 10 to push the central scrap 21 off the sealing plate 6. The central scrap 21 falls into the collection box 16. The pressure plate 2 will then reset and rise, and simultaneously drive the lifting frame 5 to rise. The sealing plate 6 will also rise to the top and be on the same horizontal plane as the guide table 4 again. The steel strip 19, from which the central waste 21 was separated, continues to move along the conveying direction to the top of the second discharge chute 18. At this time, the pressure plate 2 moves downward again to prepare for a new round of punching and drives the lifting frame 5 downward. Each steel sheet 20 that is completely separated from the steel strip 19 will be fitted onto the guide post in the second discharge chute 18. Each steel sheet 20 that is not completely separated from the steel strip 19 will be pushed into the second discharge chute 18 by the second push rod 14 above and fitted onto the guide post. After collecting a certain amount of steel sheets, the workers can then remove the placement seat, move the collection frame 15 downward, and move the guide post out of the second discharge chute 18. Removing the collection frame 15 allows the collected steel sheets 20 to be processed.

[0048] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0049] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A punching and cutting equipment for electric motor steel sheets, characterized in that: It includes a punch press body (1) and a guide table (4). The guide table (4) is located on the discharge side of the punch press body (1) and its upper surface is flush with the worktable (3) of the punch press body (1). The end of the guide table (4) is attached to the edge of the worktable (3). The guide platform (4) is provided with multiple first dropping troughs (17) for central waste (21) to fall and multiple second dropping troughs (18) for steel sheets to fall. The diameter of the first dropping trough (17) is smaller than the diameter of the second dropping trough (18). The multiple first dropping troughs (17) and multiple second dropping troughs (18) correspond to the arrangement of steel sheets on the steel strip. Each first dropping trough (17) can be equipped with a sealing plate (6) to block the first dropping trough (17) in a lifting manner. A scraping assembly for scraping off the waste falling on the surface of the sealing plate (6) is provided below the guide platform (4).

2. The motor lamination punching apparatus of claim 1, wherein: It also includes a movable frame, which is located below the guide table (4) and moves up and down synchronously with the pressure plate (2) of the punch body (1). The movable frame includes multiple mounting rods (7) and two mounting plates (8). The two mounting plates (8) are located on the front and rear sides below the guide table (4), respectively. The multiple mounting rods (7) are arranged laterally between the two mounting plates (8) along the conveying direction. Each mounting rod (7) is equipped with multiple sealing plates (6), and each sealing plate (6) corresponds to one of the first discharge troughs (17).

3. The motor lamination punching apparatus of claim 2 wherein: The scraping assembly includes a cylinder (11) and a scraping frame that slides along the bottom of the guide platform (4). The scraping frame includes two connecting plates (9) and multiple push plates (10). The multiple push plates (10) are spaced apart and located between the two connecting plates (9). The cylinder (11) is fixedly connected to the outermost push plate (10). When the moving frame moves downward, the push plate (10) pushes down the central waste material (21) at the top of the sealing plate (6).

4. The motor lamination punching apparatus of claim 2 wherein: A lifting frame (5) that moves synchronously with the pressure plate (2) is provided on one side of the punch press body (1) and above the guide table (4). The bottom of the lifting frame (5) is vertically provided with a plurality of first push rods (13) and a plurality of second push rods (14). Each first push rod (13) corresponds to a first drop groove (17), and each second push rod (14) corresponds to a second drop groove (18).

5. The motor lamination punching apparatus of claim 1 wherein: A collection box (16) is provided below the first material discharge chute (17).

6. The motor lamination punching apparatus of claim 1 wherein: A placement seat is provided below the second material drop chute (18), and a collection rack (15) for collecting steel sheets is provided on the placement seat.

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