CN112191732A - Blanking equipment and method for machining transformer core oil groove - Google Patents
Blanking equipment and method for machining transformer core oil groove Download PDFInfo
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- CN112191732A CN112191732A CN202010979525.XA CN202010979525A CN112191732A CN 112191732 A CN112191732 A CN 112191732A CN 202010979525 A CN202010979525 A CN 202010979525A CN 112191732 A CN112191732 A CN 112191732A
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- silicon steel
- guide rail
- blanking
- stamping die
- servo motor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
- B21D28/04—Centering the work; Positioning the tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/02—Advancing work in relation to the stroke of the die or tool
- B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
- B21D43/08—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by rollers
- B21D43/09—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by rollers by one or more pairs of rollers for feeding sheet or strip material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
- B21D45/003—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass in punching machines or punching tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
- B21D45/02—Ejecting devices
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0206—Manufacturing of magnetic cores by mechanical means
- H01F41/0233—Manufacturing of magnetic circuits made from sheets
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Punching Or Piercing (AREA)
Abstract
本发明公开了一种用于加工变压器铁心油槽的冲裁设备及方法，包括冲槽冲床（1）、拉送料装置（2）、载物平台（3）和控制组件，其中拉送料装置（2）为两个，所述两个拉送料装置（2）分别设置于冲槽冲床（1）的入料侧和出料侧，所述载物平台（3）为两个，其中两个载物平台（3）分别设置于两个拉送料装置（2）远离冲槽冲床（1）的一侧，所述冲槽冲床（1）的工作面、拉送料装置（2）的工作面和载物平台（3）的上端面处于同一水平面上，其中冲槽冲床（1）和拉送料装置（2）分别与控制组件电连接。
The invention discloses a punching equipment and method for processing transformer iron core oil grooves, comprising a punching punch (1), a pulling and feeding device (2), a loading platform (3) and a control assembly, wherein the pulling and feeding device (2) ) is two, the two pulling and feeding devices (2) are respectively arranged on the feeding side and the discharging side of the punching machine (1), and there are two loading platforms (3), two of which are loaded The platforms (3) are respectively arranged on the side of the two pulling and feeding devices (2) away from the punching machine (1), the working surface of the punching and punching machine (1), the working surface of the pulling and feeding device (2) and the load The upper end surface of the platform (3) is on the same horizontal plane, wherein the punching and punching machine (1) and the pulling and feeding device (2) are respectively electrically connected with the control assembly.
Description
Technical Field
The invention belongs to the technical field of transformer core processing and manufacturing, and particularly relates to blanking equipment and a method for processing an oil groove of a transformer core.
Background
At present, an oil-immersed transformer generally adopts three cooling modes, namely an oil-immersed self-cooling type cooling mode, an oil-immersed air-cooling type cooling mode and a forced oil circulation cooling mode. The oil immersion self-cooling type depends on natural convection of oil to take away heat. The oil immersion air cooling type is that on the basis of the oil immersion self cooling type, a fan is additionally arranged for blowing air to an oil tank and an oil pipe so as to enhance the heat dissipation effect. The forced oil circulation is that the oil pump is used to pump the hot oil in the transformer to the outside of the transformer for cooling and then the oil is sent into the transformer. However, as the capacity and volume of the transformer are increased, the volume of the transformer core is also increased, and the width and stacking thickness of the silicon steel sheets are increased, so that the internal temperature of the transformer core cannot be reduced by the three cooling methods, and therefore, oil grooves need to be processed on the silicon steel sheets, the contact area between the transformer core and the cooling oil is increased, and the internal temperature of the transformer core is reduced. At present, oil groove processing equipment on the market is few, and the current oil groove processing equipment precision is too low, and the size can not be adjusted or is adjusted inconveniently, influences transformer performance.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides blanking equipment and a method for processing an oil groove of a transformer core, and solves the problems that in the prior art, the number of oil groove processing equipment is small, the precision of the existing oil groove processing equipment is too low, the size cannot be adjusted or is inconvenient to adjust, the performance of a transformer is influenced, and the like.
In order to solve the technical problem, the technical scheme of the invention is as follows: the utility model provides a blanking equipment for processing transformer core oil groove, includes the notching press, draws material feeder, cargo platform and control assembly, wherein draws material feeder two, two draw material feeder to set up respectively in the feeding side and the discharge side of notching press, cargo platform is two, and wherein two cargo platforms set up respectively in two one sides that material feeder kept away from the notching press, the working face of notching press, the working face that draws material feeder and cargo platform's up end are in on same horizontal plane, wherein the notching press is connected with the control assembly electricity respectively with drawing material feeder.
Preferably, the notching press at least comprises a base, a machine body, a first servo motor, a swing arm, a sliding block, a punching die, a lower die holder, a supporting plate, a servo screw rod, a movable sliding table, a first linear sliding rail, a fixed width-adjusting guide rail, a second linear sliding rail, a movable width-adjusting guide rail, a hand screw rod and a second servo motor, wherein the base is installed on a foundation, the movable sliding table is connected with the sliding block of the first linear sliding rail through a screw, the guide rail of the first linear sliding rail is installed on the base through a screw, the first linear sliding rail is arranged along the length direction of the base, and the lower end face of the machine body is installed on the movable sliding table through a screw; the servo lead screw is arranged on the base on one side of the first linear sliding rail, one end of the servo lead screw is connected with the second servo motor, the servo lead screw is arranged along the length direction of the base, and one side face of the lathe bed is connected with the servo lead screw; the first servo motor is installed at the top of the lathe bed through a motor support, a swing arm is arranged on one side of the lathe bed, the upper end of the swing arm is connected with the first servo motor through a transmission shaft, the lower end of the swing arm is connected with a sliding block through a shaft, the lower end of the sliding block is connected with the upper end of a stamping die, the lower end of the stamping die is connected with a lower die holder, and one side face of the lower die holder is fixed on the lathe; an excavation groove is formed in the position where the lathe bed is flush with the working surface of the stamping die, the fixed width-adjusting guide rails are fixedly installed on the base through screws and pillars, the fixed width-adjusting guide rails are arranged on two sides of the excavation groove, and the fixed width-adjusting guide rails are higher than the excavation groove and used for carrying out unilateral positioning on the silicon steel sheet; the mobile width-adjusting guide rail is connected with a sliding block of the second linear slide rail through a screw, wherein the guide rail of the second linear slide rail is fixedly installed on the base through a screw, the guide rail of the second linear slide rail is arranged along the length direction of the base, a nut of a hand screw is connected with a support of the mobile width-adjusting guide rail through a screw, the top of the mobile width-adjusting guide rail is connected with one side of the supporting plate, the other side of the supporting plate is connected with the top of the lower die holder, and the first servo motor and the second servo motor are respectively electrically connected with the control assembly.
Preferably, the stamping die comprises an upper stamping die and a lower stamping die, wherein the upper end of the upper stamping die is arranged on the lower end face of the sliding block, the lower end of the lower stamping die is arranged on the upper end face of the lower die base, the upper stamping die and the lower stamping die are both rectangular, the lower end face of the upper stamping die is provided with a rectangular protrusion, the upper end face of the lower stamping die is provided with a rectangular groove, the rectangular groove is communicated with the base, a waste material box is arranged in the base, and the upper end face of the lower stamping die of the stamping die, the lower plane of the hollow groove, the working face of the material pulling and feeding device and the working face.
Preferably, the transmission shaft comprises a coupler, a bearing and an eccentric shaft, wherein the first servo motor is connected with the bearing through the coupler, the bearing is connected with one end of the eccentric shaft, the other end of the eccentric shaft is connected with the swing arm, the swing arm is perpendicular to the eccentric shaft, the eccentric distance of the eccentric shaft is 4mm, and the swing arm can form an up-down blanking distance of 8mm after the eccentric shaft rotates along with the first servo motor.
Preferably, one side of the lathe bed is connected with a servo lead screw through a nut seat and a nut, wherein the nut is connected with the servo lead screw, one end of the nut seat is connected with the nut, the other end of the nut seat is connected with the lathe bed, the servo lead screw drives the lead screw to rotate through a second servo motor, then the screw is driven to move, the lathe bed is driven to move transversely, the supporting plate is connected through rollers by two plates, and the supporting plate is telescopic under the driving of a hand-operated lead screw.
Preferably, the second linear sliding rail is parallel to the first linear sliding rail and is respectively arranged on two sides of the base in the length direction, the fixed width-adjusting guide rail is arranged on two sides of the hollowed groove, and the fixed width-adjusting guide rail is perpendicular to the second linear sliding rail and the first linear sliding rail.
Preferably, draw material feeding unit including installation frame, drive roll, driven roll, cylinder, bearing and third servo motor, wherein the frame intermediate position is installed through the bearing to the both ends of drive roll and driven roll, wherein the driven roll sets up in the drive roll top, the axis and the first linear slide rail of drive roll and driven roll are parallel with the second linear slide rail, the cylinder is fixed in installation frame top, and wherein the cylinder passes through the mounting panel and is connected with the driven roll, and wherein the cylinder is flexible can drive the driven roll up-and-down motion, third servo motor passes through the shaft coupling and is connected with the drive roll, and wherein the drive roll up end is in same horizontal plane with the lower die up end of die, cylinder and third servo motor are connected with the control assembly electricity respectively.
Preferably, the installation frame side is equipped with the mounting groove respectively, and wherein two bearings that driven roller both ends are connected are fixed respectively in the mounting panel, the mounting panel sets up in the mounting groove of installation frame side, and the driven roller can be in the mounting groove up-and-down motion under the drive of cylinder.
Preferably, the carrying platform comprises a carrying frame and a plurality of positioning rollers, wherein the positioning rollers are fixed on a section bar of the carrying frame through screws, the plurality of positioning rollers are arranged on the carrying frame in a straight line along a feeding and discharging direction, wherein the feeding and discharging direction tangents of the plurality of positioning rollers and the positioning surface of the fixed width-adjusting guide rail close to one side of the stamping die are collinear, so that the unilateral positioning of silicon steel sheets is guaranteed, and the upper end surface of the carrying frame and the upper end surface of the lower stamping die of the stamping die are positioned on the same horizontal plane.
Preferably, a blanking method of the blanking apparatus for processing the transformer core oil groove according to any one of the above, includes the following steps:
step 1) determining oil grooves to be blanked in the width direction and the length direction of a silicon steel sheet, converting the oil grooves into the width direction and the length direction blanking distance of the silicon steel sheet, and controlling a control assembly to enable a servo lead screw to drive a lathe bed to move so that the distance between a fixed width-adjusting guide rail and a punching die is the same as the width direction blanking distance of the silicon steel sheet;
step 2) placing the silicon steel sheet on an object carrying platform at the feeding side, feeding the silicon steel sheet into a notching press by a pulling and feeding device at the feeding side through a control assembly, wherein one side of the silicon steel sheet in the width direction is close to a fixed width adjusting guide rail, and the other side of the silicon steel sheet in the width direction is close to a movable width adjusting guide rail by adjusting a hand screw;
step 3) starting the first servo motor through the control assembly, blanking oil grooves in the length direction on the silicon steel sheet, and repeating the step 2) to blank a plurality of oil grooves in the width direction of the silicon steel sheet;
and 4) pulling out the silicon steel sheet through a pulling and feeding device on the discharge side after the oil grooves on the silicon steel sheet are blanked, and moving out through a carrying platform on the discharge side.
Compared with the prior art, the invention has the advantages that:
(1) the invention provides blanking equipment for processing an oil groove of a transformer core, which comprises a notching punch press, two material pulling and feeding devices, two object carrying platforms and a control assembly, wherein the two material pulling and feeding devices are respectively arranged on the feeding side and the discharging side of the notching punch press;
(2) the invention is characterized in that the loading platforms arranged at two sides of the notching press are used for placing silicon steel sheets and carrying out primary single-side positioning on the silicon steel sheets, the silicon steel sheets placed on the loading platforms are sent to the notching press through a pulling and feeding device, and are positioned at two sides through a width adjusting guide rail, so that the punching position is determined, and oil groove punching is carried out;
(3) according to the notching press, the fixed width-adjusting guide rail and the movable width-adjusting guide rail are arranged, one side of the silicon steel sheet in the width direction is close to the fixed width-adjusting guide rail, and then the other side of the silicon steel sheet in the width direction is close to the movable width-adjusting guide rail by adjusting the hand-operated lead screw, so that the notching parallelism of an oil groove can be ensured, the notching precision is improved, and the transformer performance is improved;
(4) according to the invention, the servo screw rod is driven by the second servo motor to drive the lathe bed to move transversely, and the transverse square blanking position of the silicon steel sheet is determined by adjusting the distance between the lathe bed position and the fixed width-adjusting guide rail, so that the blanking position is convenient to adjust, and the blanking speed is improved;
(5) the driven roller of the pulling and feeding device is arranged in the mounting grooves on two sides of the mounting frame through the mounting plate, the driven roller moves up and down in the mounting grooves under the driving of the cylinder, and the position of the driven roller can be adjusted through the cylinder, so that the pulling and feeding device can be suitable for silicon steel sheets with various thicknesses and is wide in application range.
Drawings
Fig. 1 is a schematic front view of a blanking apparatus for processing an oil groove of a transformer core according to the present invention;
FIG. 2 is a schematic top view of a blanking apparatus for processing oil grooves of a transformer core according to the present invention;
FIG. 3 is a schematic perspective view of a slot punching machine of a punching apparatus for processing oil slots of a transformer core according to the present invention;
FIG. 4 is a schematic front view of a slot punching machine of a punching apparatus for processing oil slots of a transformer core according to the present invention;
FIG. 5 is a schematic top view of a slot punching machine of a punching apparatus for processing oil slots of a transformer core according to the present invention;
FIG. 6 is a schematic structural view of a drawing and feeding device of a blanking apparatus for processing oil grooves of a transformer core according to the present invention;
fig. 7 is a schematic structural diagram of a carrying platform of a blanking device for processing an oil groove of a transformer core according to the present invention.
Description of the reference numerals
1-a notching press, 2-a pulling and feeding device, 3-an object carrying platform, 4-a base, 5-a bed, 6-a first servo motor, 7-a swing arm, 8-a slide block, 9-a punching die, 10-a lower die holder, 11-a supporting plate, 12-a servo lead screw, 13-a movable sliding table, 14-a first linear sliding rail, 15-a fixed width adjusting guide rail, 16-a second linear sliding rail, 17-a movable width adjusting guide rail, 18-a hand swing lead screw, 19-an installation frame, 20-a driving roller, 21-a driven roller, 22-an air cylinder, 23-a bearing, 24-a third servo motor and 25-a positioning roller; 26-carrying frame, 27-mounting plate, 28-second servo motor.
Detailed Description
The following describes embodiments of the present invention with reference to examples:
it should be noted that the structures, proportions, sizes, and other elements shown in the specification are included for the purpose of understanding and reading only, and are not intended to limit the scope of the invention, which is defined by the claims, and any modifications of the structures, changes in the proportions and adjustments of the sizes, without affecting the efficacy and attainment of the same.
In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
Example 1
As shown in fig. 1-2, the invention discloses blanking equipment for processing oil grooves of transformer cores, which comprises a notching press 1, two pulling and feeding devices 2, two carrying platforms 3 and a control assembly, wherein the two pulling and feeding devices 2 are respectively arranged on the feeding side and the discharging side of the notching press 1, the two carrying platforms 3 are respectively arranged on one side of the two pulling and feeding devices 2 away from the notching press 1, the working surface of the pulling and feeding devices 2 and the upper end surfaces of the carrying platforms 3 are positioned on the same horizontal plane, and the notching press 1 and the pulling and feeding devices 2 are respectively electrically connected with the control assembly.
Example 2
As shown in fig. 1-2, preferably, the loading platform 3 is installed at the outermost side of the blanking device, and both the feeding side and the discharging side are installed; the pulling and feeding device 2 is placed close to the loading platform 3, the feeding side is provided with the feeding device, the discharging side is provided with the pulling device, the pulling and feeding device 2 is not connected with the loading platform 3 and is fixed through a foundation; the notching press 1 is arranged at the center of the equipment and used for completing the punching of the oil groove, the notching press 1 is not fixedly connected with the pulling and feeding device 2, and the relative position is adjusted through the position of the foundation, so that the working surface of the notching press 1, the working surface of the pulling and feeding device 2 and the upper end surface of the loading platform 3 are positioned on the same horizontal plane.
The control component is a PLC control component and respectively controls the relevant logics of the notching press 1 and the material pulling and feeding device 2.
Example 3
As shown in fig. 3 to 5, preferably, the notching press 1 at least includes a base 4, a press body 5, a first servo motor 6, a swing arm 7, a slider 8, a punch die 9, a lower die holder 10, a supporting plate 11, a servo lead screw 12, a movable sliding table 13, a first linear slide rail 14, a fixed width-adjusting guide rail 15, a second linear slide rail 16, a movable width-adjusting guide rail 17, a hand lead screw 18, and a second servo motor 28, wherein the base 4 is installed on a foundation, the movable sliding table 13 is connected with the slider of the first linear slide rail 14 through a screw, a guide rail of the first linear slide rail 14 is installed on the base 4 through a screw, the first linear slide rail 14 is arranged along the length direction of the base 4, and the lower end surface of the press body 5 is installed on the movable sliding table 13 through a; the servo lead screw 12 is arranged on the base 4 on one side of the first linear sliding rail 14, one end of the servo lead screw 12 is connected with the second servo motor 28, the servo lead screw 12 is arranged along the length direction of the base 4, and one side face of the lathe bed 5 is connected with the servo lead screw 12; the first servo motor 6 is installed at the top of the lathe bed 5 through a motor support, the swing arm 7 is arranged on one side of the lathe bed 5, the upper end of the swing arm 7 is connected with the first servo motor 6 through a transmission shaft, the lower end of the swing arm 7 is connected with the sliding block 8 through a shaft, the lower end of the sliding block 8 is connected with the upper end of the stamping die 9, the lower end of the stamping die 9 is connected with the lower die holder 10, and one side face of the lower die holder 10 is fixed on the lathe bed 5; an excavation groove 20 is formed in the position, which is flush with the working surface of the punch die 9, of the lathe bed 5, wherein the fixed width-adjusting guide rails 15 are fixedly installed on the base 4 through screws and pillars, the fixed width-adjusting guide rails 15 are arranged on two sides of the excavation groove 20, and the fixed width-adjusting guide rails 15 are higher than the excavation groove 20 and are used for carrying out unilateral positioning on silicon steel sheets; the wide guide rail 17 is transferred in removal is connected through the slider of screw with second linear slide rail 16, and wherein the guide rail of second linear slide rail 16 passes through screw fixed mounting on base 4, the guide rail of second linear slide rail 16 sets up along the length direction of base 4, the screw of hand lead screw 18 is transferred wide guide rail 17's pillar connection through screw and removal, and wherein remove and transfer wide guide rail 17 top and layer board 11 one side and be connected, and wherein the opposite side and the die holder 10 top of layer board 11 are connected, first servo motor 6 and second servo motor 28 are connected with the control assembly electricity respectively.
The servo screw 12 drives the screw to rotate through the second servo motor 28, and drives the nut to move, so that the lathe bed 5 is driven to move transversely; the first servo motor 6 rotates to realize the up-and-down movement of the swing arm 7, the lower part of the swing arm 7 is connected with the sliding block 8 through a shaft, and the sliding block 8 can be driven to realize the same up-and-down movement; the lower die holder 10 is fixedly arranged on the lathe bed 5 and has no displacement action; the servo motor 6 drives the swing arm 7 and the slide block 8 to complete the blanking action through a transmission shaft; the fixed width-adjusting guide rail 15 is fixedly arranged on the base 4 through a screw and a pillar, has no displacement action and is used for carrying out unilateral positioning on the silicon steel sheet; the screw of the hand-operated screw rod 18 is connected with the support of the movable width-adjusting guide rail 17 through a screw, and the screw rod is rotated by manually rotating the hand wheel of the hand-operated screw rod 18, so that the screw rod is driven to move, and the transverse adjustment of the movable width-adjusting guide rail 17 is realized to adapt to different sheet widths.
Example 4
As shown in fig. 3 to 5, preferably, the stamping die 9 includes an upper stamping die and a lower stamping die, wherein the upper stamping die is mounted at the lower end face of the slide block 8, the lower stamping die is mounted at the upper end face of the lower die holder 10, the upper stamping die and the lower stamping die are both rectangular, the lower end face of the upper stamping die is provided with a rectangular protrusion, the upper end face of the lower stamping die is provided with a rectangular groove, the rectangular groove is communicated with the base 4, the waste box is arranged inside the base 4, and the upper end face of the lower stamping die of the stamping die 9, the lower plane of the hollowed groove 20, the working face of the material pulling and feeding device 2, and the working face of the loading platform 3 are located.
The working surface of the notching press 1 is the upper end surface of a lower punching die of the punching die 9.
As shown in fig. 3 to 5, preferably, the transmission shaft includes a coupler, a bearing and an eccentric shaft, wherein the first servo motor 6 is connected to the bearing through the coupler, the bearing is connected to one end of the eccentric shaft, the other end of the eccentric shaft is connected to the swing arm 7, the swing arm 7 is perpendicular to the eccentric shaft, the eccentric distance of the eccentric shaft is 4mm, and the eccentric shaft can make the swing arm 7 form an up-and-down blanking distance of 8mm after rotating with the first servo motor 6.
Example 5
As shown in fig. 3 to 5, preferably, one side of the bed body 5 is connected with the servo lead screw 12 through a nut seat and a nut, wherein the nut is connected with the servo lead screw 12, one end of the nut seat is connected with the nut, the other end of the nut seat is connected with the bed body 5, the servo lead screw 12 drives the lead screw to rotate through the second servo motor 28, then the nut is driven to move, so that the bed body 5 is driven to move transversely, the supporting plate 11 is connected with two plates through rollers, and the supporting plate 11 is driven by the hand lead screw 18 to be telescopic.
As shown in fig. 3 to 5, preferably, the second linear sliding rail 16 is parallel to the first linear sliding rail 14 and is respectively disposed at two sides of the base 4 in the length direction, and the fixed width-adjusting guide rail 15 is disposed at two sides of the hollow groove 20, wherein the fixed width-adjusting guide rail 15 is perpendicular to the second linear sliding rail 16 and the first linear sliding rail 14.
Example 6
As shown in fig. 6, preferably, the pulling and feeding device 2 comprises a mounting frame 19, a driving roller 20, a driven roller 21, a cylinder 22, a bearing 23 and a third servo motor 24, wherein both ends of the driving roller 20 and the driven roller 21 are mounted to the frame 19 at a middle position through bearings 23, wherein the driven roller 21 is arranged on the top of the driving roller 20, the axes of the driving roller 20 and the driven roller 21 are parallel to the first linear sliding rail 14 and the second linear sliding rail 16, the air cylinder 22 is fixed on the top of the mounting frame 19, wherein the cylinder 22 is connected with the driven roller 21 through a mounting plate 27, the cylinder 22 can stretch and retract to drive the driven roller 21 to move up and down, the third servo motor 24 is connected with the driving roller 20 through a coupler, wherein the upper end surface of the driving roll 20 and the upper end surface of the lower punch of the punch die 9 are positioned on the same horizontal plane, and the air cylinder 22 and the third servo motor 24 are respectively and electrically connected with the control component.
The cylinder 22 pushes the driven roller 21 to move downwards until the driven roller 21 and the silicon steel sheet contact with the driving roller 20, so that the driven rotation is realized, and the material conveying function can be realized.
The working surface of the pulling and feeding device 2 is the upper end surface of the driving roller 20.
The pulling and feeding device 2 can adjust the longitudinal moving direction of the silicon steel sheet by changing the rotating direction of the driving roller 20, and can flexibly change the feeding side and the discharging side.
As shown in fig. 6, preferably, the mounting frame 19 is provided with mounting grooves on the sides thereof, wherein the two bearings 23 connected to the two ends of the driven roller 21 are respectively fixed in the mounting plates 27, the mounting plates 27 are disposed in the mounting grooves on the sides of the mounting frame 19, and the driven roller 21 can move up and down in the mounting grooves under the driving of the air cylinder 22.
Example 7
As shown in fig. 7, preferably, the carrier platform 3 includes a carrier frame 26 and a plurality of positioning rollers 25, wherein the positioning rollers 25 are fixed on the section bar of the carrier frame 26 by screws, the plurality of positioning rollers 25 are arranged on the carrier frame 26 in a straight line along a feeding and discharging direction, a tangent line of the feeding and discharging direction of the plurality of positioning rollers 25 is collinear with a positioning surface of the fixed width-adjusting guide 15 on a side close to the die 9 to ensure single-side positioning of the silicon steel sheet, and an upper end surface of the carrier frame 26 is located on the same horizontal plane as an upper end surface of the lower die of the die 9.
The positioning rollers 25 are arranged on the section bar of the frame 26 through screws and rear elastic sheet nuts, the number of the positioning rollers 25 is not fixed, the longitudinal distance can be adjusted according to the length of the material, and no fixed value exists; the positioning roller 25 is in a straight line on the frame 26 along the longitudinal direction (the material outlet and inlet direction), the tangent line of the material outlet and inlet direction is collinear with the positioning surface of the fixed width-adjusting guide rail 15 close to one side of the die 9, so as to ensure the unilateral positioning of the conveyed material, and the positioning roller 25 can also be other positioning devices.
Example 8
Preferably, a blanking method of the blanking apparatus for processing the transformer core oil groove according to any one of the above, includes the following steps:
step 1) determining oil grooves to be blanked in the width direction and the length direction of a silicon steel sheet, converting the oil grooves into the width direction and the length direction blanking distance of the silicon steel sheet, and controlling a control assembly to enable a servo lead screw 12 to drive a lathe bed 5 to move so that the distance between a fixed width-adjusting guide rail 15 and a stamping die 9 is the same as the width direction blanking distance of the silicon steel sheet;
step 2) placing a silicon steel sheet on an object platform 3 at a feeding side, enabling a pulling and feeding device 2 at the feeding side to send the silicon steel sheet into a notching press 1 through a control assembly, enabling one side of the silicon steel sheet in the width direction to be close to a fixed width-adjusting guide rail 15, and enabling the other side of the silicon steel sheet in the width direction to be close to a movable width-adjusting guide rail 17 through adjusting a hand-operated lead screw 18;
step 3) starting the first servo motor 6 through the control assembly, blanking oil grooves in the length direction on the silicon steel sheet, repeating the step 2, and blanking a plurality of oil grooves in the width direction of the silicon steel sheet;
and 4) pulling out the silicon steel sheet through the pulling and feeding device 2 on the discharge side after the oil grooves on the silicon steel sheet are blanked, and moving out through the loading platform 3 on the discharge side.
The transformer core oil groove is a rectangular long groove, the punching die of the punching slot punch press is rectangular, and the silicon steel sheet needs to move longitudinally to complete punching of the long groove. In the blanking process, the feeding device and the pulling device act simultaneously to drive the silicon steel sheet to realize longitudinal feeding. The oil groove often is multichannel oil groove, and the punching press of dashing the groove drives through servo motor-driven and speed reducer and realizes lateral shifting, accomplishes the blanking of the multichannel oil groove of silicon steel sheet transverse direction. After all oil grooves are blanked, the feeding device and the pulling device act simultaneously to send the silicon steel sheet out of the area of the slot punching machine, and then the blanking of the oil grooves of the silicon steel sheet can be completed.
The working principle of the invention is as follows:
the notching press 1 of the invention is used for completing the notching of the oil groove on the silicon steel sheet, the pulling and feeding device 2 is arranged on the feeding side for feeding, the discharging side for pulling, the loading platform 3 is arranged on the outermost two sides, used for ensuring the smooth feeding of the conveying sheet material, the silicon steel sheet is placed on the loading platform 3, the positioning roller 25 on the loading platform is used for carrying out single-side pre-positioning on the silicon steel sheet, the sheet metal enters the notching press 1 through the pulling and feeding device 2 to carry out the longitudinal accurate feeding of the silicon steel sheet, the body 5 of the notching press 1 can move transversely, the transverse and longitudinal punching precision of the oil groove on the silicon steel sheet is ensured, the automatic notching of a plurality of oil channels on the silicon steel sheet is realized, the sheet metal is continuously conveyed after the oil groove punching process is finished, the sheet stock is transferred to the rear loading platform 3 through the pulling and feeding device to complete the blanking of the oil groove.
The using method of the invention is as follows:
step 1) determining oil grooves to be blanked in the width direction and the length direction of a silicon steel sheet, converting the oil grooves into the width direction and the length direction blanking distance of the silicon steel sheet, and controlling by using a control assembly to enable a servo lead screw 12 to drive a lathe bed 5 to transversely move on a first linear slide rail 14, so that the distance between a fixed width-adjusting guide rail 15 and a punching die 9 is the same as the width direction blanking distance of the silicon steel sheet;
step 2) placing a silicon steel sheet on the loading platform 3 at the loading side, extending out an air cylinder 22 of the pulling and feeding device 2 at the loading side through a control assembly, enabling a driven roller 21, the silicon steel sheet and a driving roller 20 to be adjacent, then enabling the driving roller 20 to rotate so as to send the silicon steel sheet into the notching press 1, enabling one side of the silicon steel sheet in the width direction to be adjacent to the fixed width-adjusting guide rail 15, and enabling the other side of the silicon steel sheet in the width direction to be adjacent to the movable width-adjusting guide rail 17 by adjusting a hand-operated lead screw 18;
step 3) starting a first servo motor 6 through a control assembly, enabling the first servo motor 6 to rotate to drive an upper punching die of a punching die 9 to move up and down, punching a silicon steel sheet when the upper punching die moves down, pulling the silicon steel sheet to move by a pulling and feeding device 2, punching oil grooves in the length direction on the silicon steel sheet, repeating the step 2), and punching a plurality of oil grooves in the width direction of the silicon steel sheet by adjusting the distance between a fixed width-adjusting guide rail 15 and the punching die 9;
and 4) pulling out the silicon steel sheet through the pulling and feeding device 2 on the discharge side after the oil grooves on the silicon steel sheet are blanked, and moving out through the loading platform 3 on the discharge side.
The invention provides blanking equipment for processing transformer core oil grooves, which comprises a notching punch press, two material pulling and feeding devices, two object carrying platforms and a control assembly, wherein the two material pulling and feeding devices are respectively arranged on the feeding side and the discharging side of the notching punch press, the two object carrying platforms are respectively arranged on one sides of the two material pulling and feeding devices, which are far away from the notching punch press, the longitudinal automatic feeding of silicon steel sheets can be realized through the material pulling and feeding devices and the object carrying platforms, the blanking of the oil grooves is completed through the notching punch press, meanwhile, the transverse stepping of a machine body can be realized through a second servo motor, the blanking of a plurality of transverse oil grooves of the silicon steel sheets is completed, and the parallelism and the precision of the transverse.
The invention is characterized in that the loading platforms arranged at two sides of the notching press are used for placing silicon steel sheets and carrying out primary single-side positioning on the silicon steel sheets, the silicon steel sheets placed on the loading platforms are sent to the notching press through the pulling and feeding device, the double-side positioning is carried out through the width-adjusting guide rail, the punching position is determined, and oil groove punching is carried out.
The fixed width-adjusting guide rail and the movable width-adjusting guide rail are arranged on the notching press, one side of the silicon steel sheet in the width direction is close to the fixed width-adjusting guide rail, and the other side of the silicon steel sheet in the width direction is close to the movable width-adjusting guide rail by adjusting the hand-operated lead screw, so that the notching parallelism of the oil groove can be ensured, the notching precision is improved, and the performance of the transformer is improved.
According to the invention, the servo screw is driven by the second servo motor to drive the lathe bed to move transversely, and the transverse square blanking position of the silicon steel sheet is determined by adjusting the distance between the lathe bed and the fixed width-adjusting guide rail, so that the blanking position is convenient to adjust, and the blanking speed is improved.
The driven roller of the pulling and feeding device is arranged in the mounting grooves on two sides of the mounting frame through the mounting plate, the driven roller moves up and down in the mounting grooves under the driving of the cylinder, and the position of the driven roller can be adjusted through the cylinder, so that the pulling and feeding device can be suitable for silicon steel sheets with various thicknesses and is wide in application range.
While the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Many other changes and modifications can be made without departing from the spirit and scope of the invention. It is to be understood that the invention is not to be limited to the specific embodiments, but only by the scope of the appended claims.
Claims (10)
1. The utility model provides a blanking equipment for processing transformer core oil groove which characterized in that: including notching press (1), draw material feeding unit (2), objective platform (3) and control assembly, wherein draw material feeding unit (2) and be two, two draw material feeding unit (2) to set up respectively in the feeding side and the ejection of compact side of notching press (1), objective platform (3) are two, and wherein two objective platform (3) set up respectively in two draw one side that material feeding unit (2) kept away from notching press (1), the working face of notching press (1), the working face that draws material feeding unit (2) and the up end of objective platform (3) are in on same horizontal plane, and wherein notching press (1) and draw material feeding unit (2) are connected with the control assembly electricity respectively.
2. The blanking apparatus of claim 1, wherein the blanking apparatus comprises: the notching press (1) at least comprises a base (4), a machine body (5), a first servo motor (6), a swing arm (7), a sliding block (8), a stamping die (9), a lower die holder (10), a supporting plate (11), a servo lead screw (12), a movable sliding table (13), a first linear sliding rail (14), a fixed width-adjusting guide rail (15), a second linear sliding rail (16), a movable width-adjusting guide rail (17), a hand-operated lead screw (18) and a second servo motor (28), the base (4) is arranged on a foundation, the movable sliding table (13) is connected with a sliding block of a first linear sliding rail (14) through a screw, wherein the guide rail of the first linear slide rail (14) is arranged on the base (4) through a screw, wherein the first linear slide rail (14) is arranged along the length direction of the base (4), the lower end face of the lathe bed (5) is arranged on the movable sliding table (13) through screws; the servo lead screw (12) is arranged on the base (4) on one side of the first linear sliding rail (14), one end of the servo lead screw (12) is connected with the second servo motor (28), the servo lead screw (12) is arranged along the length direction of the base (4), and one side face of the lathe bed (5) is connected with the servo lead screw (12); the first servo motor (6) is installed at the top of the lathe bed (5) through a motor support, the swing arm (7) is arranged on one side of the lathe bed (5), the upper end of the swing arm (7) is connected with the first servo motor (6) through a transmission shaft, the lower end of the swing arm (7) is connected with the sliding block (8) through a shaft, the lower end of the sliding block (8) is connected with the upper end of the stamping die (9), the lower end of the stamping die (9) is connected with the lower die holder (10), and one side face of the lower die holder (10) is fixed on the lathe bed (5); an excavation groove (20) is formed in the position, which is flush with the working surface of the punch die (9), of the lathe bed (5), wherein the fixed width-adjusting guide rails (15) are fixedly installed on the base (4) through screws and pillars, the fixed width-adjusting guide rails (15) are arranged on two sides of the excavation groove (20), and the fixed width-adjusting guide rails (15) are higher than the excavation groove (20) and are used for carrying out unilateral positioning on silicon steel sheets; the mobile width-adjusting guide rail (17) is connected with a sliding block of a second linear slide rail (16) through a screw, wherein the guide rail of the second linear slide rail (16) is fixedly installed on the base (4) through a screw, the guide rail of the second linear slide rail (16) is arranged along the length direction of the base (4), a nut of a hand-operated lead screw (18) is connected with a support of the mobile width-adjusting guide rail (17) through a screw, the top of the mobile width-adjusting guide rail (17) is connected with one side of a supporting plate (11), the other side of the supporting plate (11) is connected with the top of a lower die seat (10), and a first servo motor (6) and a second servo motor (28) are respectively electrically connected with the control assembly.
3. The blanking apparatus for processing transformer core oil grooves according to claim 2, wherein: the stamping die (9) comprises an upper stamping die and a lower stamping die, wherein the upper end of the upper stamping die is arranged on the lower end face of the sliding block (8), the lower end of the lower stamping die is arranged on the upper end face of the lower die base (10), the upper stamping die and the lower stamping die are both rectangular, the lower end face of the upper stamping die is provided with a rectangular protrusion, the upper end face of the lower stamping die is provided with a rectangular groove, the rectangular groove is communicated with the base (4), a waste material box is arranged in the base (4), and the upper end face of the lower stamping die of the stamping die (9) is positioned on the same horizontal plane with the lower plane of the hollow groove (20), the working face of the pulling and feeding device (2) and the working face of.
4. The blanking apparatus for processing transformer core oil grooves according to claim 2, wherein: the transmission shaft comprises a coupler, a bearing and an eccentric shaft, wherein the first servo motor (6) is connected with the bearing through the coupler, the bearing is connected with one end of the eccentric shaft, the other end of the eccentric shaft is connected with a swing arm (7), the swing arm (7) is perpendicular to the eccentric shaft, the eccentric distance of the eccentric shaft is 4mm, and the swing arm (7) can form an upper blanking distance and a lower blanking distance of 8mm after the eccentric shaft rotates along with the first servo motor (6).
5. The blanking apparatus for processing transformer core oil grooves according to claim 2, wherein: lathe bed (5) one side is connected with servo lead screw (12) through screw seat and screw, and wherein servo lead screw (12) are connected to the screw, screw is connected to screw seat one end, and lathe bed (5) are connected to the screw seat other end, servo lead screw (12) drive the lead screw through second servo motor (28) and rotate, drive the screw removal after that to drive lathe bed (5) lateral shifting, layer board (11) are passed through the gyro wheel by two panels and are connected, and layer board (11) are scalable under the drive of hand lead screw (18).
6. The blanking apparatus for processing transformer core oil grooves according to claim 2, wherein: the second linear sliding rail (16) is parallel to the first linear sliding rail (14) and is respectively arranged on two sides of the base (4) in the length direction, the fixed width-adjusting guide rail (15) is arranged on two sides of the hollow groove (20), and the fixed width-adjusting guide rail (15) is perpendicular to the second linear sliding rail (16) and the first linear sliding rail (14).
7. A blanking apparatus for processing transformer core oil grooves according to claim 3, wherein: the drawing and feeding device (2) comprises a mounting frame (19), a driving roller (20), a driven roller (21), an air cylinder (22), a bearing (23) and a third servo motor (24), wherein two ends of the driving roller (20) and the driven roller (21) are mounted at the middle position of the frame (19) through the bearing (23), the driven roller (21) is arranged at the top of the driving roller (20), the axes of the driving roller (20) and the driven roller (21) are parallel to a first linear sliding rail (14) and a second linear sliding rail (16), the air cylinder (22) is fixed at the top of the mounting frame (19), the air cylinder (22) is connected with the driven roller (21) through a mounting plate (27), the air cylinder (22) can drive the driven roller (21) to move up and down through stretching, the third servo motor (24) is connected with the driving roller (20) through a coupler, and the upper end face of the driving roller (20) and the upper end face of a lower punching die of a punching die (9) are positioned on the same horizontal, the air cylinder (22) and the third servo motor (24) are respectively and electrically connected with the control assembly.
8. The blanking apparatus of claim 7, wherein the blanking apparatus comprises: the side of the installation frame (19) is respectively provided with an installation groove, two bearings (23) connected with two ends of the driven roller (21) are respectively fixed in the installation plate (27), the installation plate (27) is arranged in the installation groove on the side of the installation frame (19), and the driven roller (21) can move up and down in the installation groove under the driving of the cylinder (22).
9. A blanking apparatus for processing transformer core oil grooves according to claim 3, wherein: the carrying platform (3) comprises a carrying frame (26) and a plurality of positioning rollers (25), wherein the positioning rollers (25) are fixed on a section bar of the carrying frame (26) through screws, the positioning rollers (25) are arranged in a plurality of numbers, the positioning rollers (25) form a straight line on the carrying frame (26) along the feeding and discharging direction, the feeding and discharging direction tangent lines of the positioning rollers (25) and the positioning surface of the fixed width-adjusting guide rail (15) close to one side of the stamping die (9) are collinear, so that the unilateral positioning of conveying silicon steel sheets is ensured, and the upper end face of the carrying frame (26) and the upper end face of the lower stamping die of the stamping die (9) are located on the same horizontal plane.
10. A blanking method of a blanking apparatus for processing transformer core oil grooves according to any one of claims 2 to 9, comprising the steps of:
step 1) determining oil grooves to be blanked in the width direction and the length direction of a silicon steel sheet, converting the oil grooves into the width direction and the length direction blanking distance of the silicon steel sheet, and controlling a servo lead screw (12) to drive a lathe bed (5) to move by using a control assembly, so that the distance between a fixed width-adjusting guide rail (15) and a punching die (9) is the same as the width direction blanking distance of the silicon steel sheet;
step 2) placing silicon steel sheets on an object carrying platform (3) on the feeding side, feeding the silicon steel sheets into a notching press (1) through a control assembly by a pulling and feeding device (2) on the feeding side, wherein one side of the silicon steel sheets in the width direction is close to a fixed width adjusting guide rail (15), and the other side of the silicon steel sheets in the width direction is close to a movable width adjusting guide rail (17) by adjusting a hand-operated lead screw (18);
step 3) starting a first servo motor (6) through the control assembly, blanking oil grooves in the length direction on the silicon steel sheet, repeating the step 2), and blanking a plurality of oil grooves in the width direction of the silicon steel sheet;
and 4) pulling out the silicon steel sheet through the pulling and feeding device (2) on the discharge side after the oil grooves on the silicon steel sheet are blanked, and moving out through the carrying platform (3) on the discharge side.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010979525.XA CN112191732A (en) | 2020-09-17 | 2020-09-17 | Blanking equipment and method for machining transformer core oil groove |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010979525.XA CN112191732A (en) | 2020-09-17 | 2020-09-17 | Blanking equipment and method for machining transformer core oil groove |
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