CN220462011U - Stamping die's waste material discharge mechanism - Google Patents

Abstract

The utility model belongs to the technical field of stamping dies and discloses a waste discharging mechanism of a stamping die, which comprises an inner frame and an outer frame, wherein the inner frame and the outer frame are fixedly arranged on the ground; the outer side of the inner frame is rotatably provided with a first gear fixed with the fixed shaft, the first gear is meshed with a second gear, an upper die mechanism is arranged at the position of the lower end of the outer frame corresponding to the lower die, one side of the upper die mechanism is fixedly provided with a fixed plate, and the lower end of the fixed plate is fixedly provided with a rack meshed with the second gear. The device can not cause abrasion to the die during cleaning when cleaning up the metal waste, and effectively prolongs the service life.

Description

Stamping die's waste material discharge mechanism

Technical Field

The utility model belongs to the technical field of stamping dies, and particularly relates to a waste discharging mechanism of a stamping die.

Background

The stamping die is an indispensable technological equipment for stamping production, is a technology-intensive product, has direct relation with die design and manufacture, is one of important marks for measuring the manufacturing level of a national product, and determines the quality, benefit and development capability of a new product to a great extent.

The existing stamping die can distribute metal scraps and scraps falling after stamping on the surface of the stamping die, a push plate is generally adopted to push and clean the surface of the die, the scraps and scraps entering a gap between the push plate and the die can be worn out when the push plate is pushed and cleaned, the service life of the die can be prolonged due to the fact that the metal scraps and scraps with small particles can not be cleaned due to the existence of gaps, and the cleaning effect of the metal scraps and scraps is reduced.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model provides a waste discharging mechanism of a stamping die, which has the advantages of cleaning metal waste, avoiding abrasion to the die during cleaning and prolonging the service life.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the waste discharging mechanism of the stamping die comprises an inner frame and an outer frame, wherein the inner frame and the outer frame are fixedly arranged on the ground, the inner frame is arranged in the outer frame, rotatable fixing shafts are movably inserted into two sides of the middle part of the inner frame, two symmetrical lower dies are fixedly arranged in the middle part of the fixing shafts through connecting rods, and when the stamping is performed, the bottom ends of the lower dies are abutted against and combined with the cambered surfaces at the upper ends of the inner frame and can slide;

the outer side of the inner frame is rotatably provided with a first gear which is fixedly arranged with the fixed shaft, the first gear is in meshed transmission with a second gear, an upper die mechanism is arranged at the position, corresponding to the lower die, of the lower end of the outer frame, a fixed plate is fixedly arranged on one side of the upper die mechanism, and a rack which is meshed with the second gear is fixedly arranged at the lower end of the fixed plate;

the second gear has different numbers of teeth from the first gear, the second gear has more numbers of teeth than the first gear so as to increase the gear ratio, a collecting box corresponding to the lower die is fixedly arranged at the lower end of the inner frame, and the width of the collecting box is larger than that of the lower die.

Preferably, the center of the cambered surface at the upper end of the inner frame falls on the axis of the connecting rod rotating by taking the fixed shaft as the axis, and only part of the lower end of the lower die is contacted with the cambered surface at the upper end of the inner frame, so that the rotation of the lower die is not influenced.

Preferably, an upper slot for limiting the upper half part of the connecting rod is formed in the middle of the upper end of the inner frame, and the width of the upper slot is slightly larger than that of the connecting rod and a gap for the connecting rod to rotate is reserved.

Preferably, a first rotating shaft fixedly arranged in the middle of one end of the fixed shaft is fixedly arranged in the middle of the first gear, and a second rotating shaft movably inserted into the side wall of the inner frame is fixedly arranged in the middle of the second gear.

Preferably, a side slot is formed in one side of the fixing plate, facing the first gear, of the fixing plate, the rack is welded to the lower half portion of the side slot, the length of the rack is set up to enable the lower die to be driven to rotate 180 degrees through the second gear and the first gear, the upper half portion distance of the side slot is separated from the second gear, and the upper half portion distance is the distance for accommodating a workpiece between the upper die and the lower die of the upper die mechanism.

Preferably, a brush for cleaning small metal particles is fixedly arranged on one side of the upper end of the collecting box, and bristles of the brush can be contacted with the stamping surface of the rotary lower die to clean the small metal particles.

Preferably, the surface of the inner frame is fixedly provided with a limiting frame on one side corresponding to the fixing plate, the fixing plate penetrates into the middle of the limiting frame, and one side, away from the rack, of the fixing plate is attached to the limiting frame and can slide.

Preferably, the lower die is provided with a limiting hole at one side of the fixed plate, a limiting pin detachably connected with the limiting hole is movably penetrated at one side of the outer frame, and a hydraulic rod is fixed between the upper die mechanism and the bottom of the outer frame.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the upper die continuously moves upwards and drives the fixed plate to move upwards, in the process, the second gear always slides in the side slot of the fixed plate, when the second gear starts to mesh with the gear, the rack drives the second gear to rotate, the second gear drives the first gear to rotate rapidly, the first gear drives the fixed shaft to rotate through the first rotating shaft, and then drives the lower die to rotate through the connecting rod, and in the process that the lower die rotates downwards, metal waste attached to the surface of the lower die falls into the collecting box under the action of self gravity to be collected.

2. According to the utility model, the stamping surface of the lower die or the surface corresponding to the hairbrush can be contacted with the hairbrush, and the hairbrush hair of the hairbrush can clean the tiny metal waste attached to the surface of the lower die.

When the metal waste is cleaned up, the die cannot be worn during cleaning, and the service life of the die is effectively prolonged.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic view of the position structure of the rack and the second gear during stamping according to the present utility model;

FIG. 3 is a schematic view of the position structure of the rack and the second gear after stamping according to the present utility model;

FIG. 4 is a schematic view of a dust cleaning structure of a rotary lower die according to the present utility model;

FIG. 5 is a schematic diagram of the upper grooving structure of the present utility model.

In the figure: 1. an outer frame; 2. an upper die mechanism; 3. a fixed shaft; 4. an inner frame; 5. a lower die; 6. a collection box; 7. a connecting rod; 8. a first rotating shaft; 9. a brush; 10. a first gear; 11. a rack; 12. a second gear; 13. a limiting pin; 14. a fixing plate; 15. side grooving; 16. a limiting hole; 17. a cambered surface; 18. a limit frame; 19. upper grooving; 20. and a second rotating shaft.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 to 5, the utility model provides a scrap discharging mechanism of a stamping die, which comprises an inner frame 4 and an outer frame 1 which are fixedly arranged on the ground, wherein the inner frame 4 is arranged inside the outer frame 1, the inner frame 4 and the outer frame 1 are both U-shaped, and the opening is fixed on the ground through screws; a hydraulic rod is fixed between the upper die mechanism 2 and the bottom of the outer frame 1 through screws, and two ends of the hydraulic rod can be fixed with the upper die mechanism 2 or the outer frame 1, so that the telescopic effect can be realized.

The rotatable fixed shaft 3 is movably inserted on two sides of the middle part of the inner frame 4, bearings are mounted at two ends of the fixed shaft 3, the bearings are rotatably arranged on the side wall of the inner frame 4 through the bearings, friction force is reduced, abrasion is reduced, the mounting mode of the bearings is not repeated in a common way, two symmetrical lower dies 5 are fixed on the middle part of the fixed shaft 3 through a connecting rod 7 through screws, the lower dies 5 at the lower end in a normal state are in a counterweight effect, the lower dies 5 are balanced in rotation, meanwhile, the lower dies are also used as spare parts, and the lower dies 5 at the upper end are convenient to replace when damaged.

During stamping, the bottom end of the lower die 5 is abutted against and combined with the cambered surface 17 at the upper end of the inner frame 4 in a sliding manner; the outside rotation of the inner frame 4 is equipped with the first gear 10 that sets firmly with fixed axle 3, first gear 10 meshing transmission has second gear 12, the fixed plate 14 has offered side fluting 15 towards one side of first gear 10, rack 11 welds the lower half at side fluting 15, the length setting accessible second gear 12 and first gear 10 drive bed die 5 rotatory 180 degrees, the upper half distance and the separation of second gear 12 of side fluting 15, the upper half distance is the distance of holding the work piece between the last mould of last mould mechanism 2 and the bed die 5.

An upper die mechanism 2 is arranged at the lower end of the outer frame 1 and corresponds to the lower die 5, a fixed plate 14 is detachably fixed on one side of the upper die mechanism 2 through screws, and a rack 11 meshed with a second gear 12 is fixedly arranged at the lower end of the fixed plate 14; the second gear 12 has different numbers of teeth from the first gear 10, the second gear 12 has more numbers of teeth than the first gear 10 so as to increase the gear ratio, the collecting box 6 corresponding to the lower die 5 is fixedly arranged at the lower end of the inner frame 4, and the width of the collecting box 6 is larger than that of the lower die 5.

The brush 9 that is used for clearing up metal granule is fixed with through the screw to collection box 6 upper end one side, and the brush hair of brush 9 can be with rotatory bed die 5 punching press face contact and realize the clearance, and the brush hair of brush 9 is preferably nylon material, and this wearability is good, increase of service life, simultaneously, brush 9 can be 45 degrees settings, can make bed die 5 pass the brush hair be convenient for clear up the metal waste material, and this angle can set up according to the rotatory radian of bed die 5, simultaneously, and the brush hair of brush 9 should be established to be longer, does not interfere with the brush board of brush 9 when making bed die 5 pass the brush 9.

The upper die mechanism 2 includes an upper die, a hydraulic rod, a positioning pin, and other devices, which are not described in detail in the main technology, and meanwhile, a chamfer is formed at an inserted end of the limiting pin 13, so that the device is convenient to be inserted into the limiting hole 16, and fixing is achieved.

The working principle and the flow of the utility model are as follows:

the user places the workpiece at the upper end of the lower die 5, the lower die 5 is positioned at the right upper end of the inner frame 4 and is fixed by the limiting pin 13 in a normal state, the second gear 12 is positioned at the lower end of the upper half part of the side slot 15 of the fixed plate 14 and is not contacted with the second gear 12, but a distance which is equal to the length of the rack 11 is still reserved between the upper die mechanism 2 and the top of the outer frame 1, so that the rack 11 is convenient to move;

after the workpiece is placed, the limiting pin 13 needs to be drawn out from the limiting hole 16, the hydraulic rod drives the upper die to punch the workpiece, the punched metal scraps can fall on the periphery of the lower die 5, at the moment, the upper die continuously moves upwards and drives the fixing plate 14 to move upwards, in the process, the second gear 12 always slides in the side slot 15 of the fixing plate 14, when the second gear 12 starts to mesh with the rack 11, the rack 11 drives the second gear 12 to rotate, the number of teeth of the second gear 12 is large due to the fact that the number of teeth of the second gear 12 is large, the number of teeth of the first gear 10 is small, therefore, for example, the gear ratio of the second gear 12 to the first gear 10 is 1:5, then the second gear 12 rotates one circle, the first gear 10 rotates five circles, of course, the gear ratio can be set according to the diameter of the connecting rod 7, so that the second gear 12 drives the first gear 10 to rotate rapidly, the first gear 10 drives the fixing shaft 3 to rotate through the first rotating shaft 8 and then drives the lower die 5 to rotate through the connecting rod 7, and when the second gear 12 is located at the bottom of the rack 11, the set gear ratio of the second gear 12 is just 180 degrees.

Because the centre of a circle of cambered surface 17 is located the axis of fixed axle 3 equally, but the radius is less than the radius of connecting rod 7, consequently lower mould 5 can be smooth follow cambered surface 17 and can not produce the interference, in the rotatory in-process of lower mould 5 below, the metal waste material of its surface adhesion drops in collecting box 6 under the effect of self gravity, simultaneously, brush 9 sets up at the rotatory direction of lower mould 5, the waste material of bulky can clear up by oneself under gravity, the punching press face of lower mould 5 or its face that corresponds with brush 9 can contact with brush 9, the brush hair of brush 9 can clear up the tiny metal waste material of lower mould 5 surface adhesion, a part of metal waste material can be cleared up by brush 9, when lower mould 5 rotates 180 and when perpendicular with ground, another part of metal waste material drops to collecting box 6 because of being brushed by brush 9 under self gravity, also can increase high-pressure air outlet device and clear up the surface of lower mould after rotating, can improve the clearance effect of waste material.

After the cleaning is finished, the hydraulic rod drives the fixing plate 14 to descend through the upper die, when the second gear 12 is separated from the rack 11, the lower die 5 is just positioned at the top end of the inner frame 4, and then a user inserts the limiting pin 13 into the limiting hole 16 of the lower die 5 again, so that the lower die 5 is fixed; the device is provided with the limiting pin 13, the pulling and inserting can be pushed through the electrified air cylinder, and the device is matched with a sensor, a PLC, a controller and the like to realize automatic operation, so that the device can be increased in intellectualization.

The operation is repeated, so that the stamping device can clean the waste of the lower die 5 every time, and the device can not wear the die when cleaning the metal waste, thereby effectively prolonging the service life.

Specifically, the centre of a circle of the cambered surface 17 at the upper end of the inner frame 4 falls on the horizontal axis of the connecting rod 7 rotating by taking the fixed shaft 3 as the axis, only part of the lower end of the lower die 5 is in contact with the cambered surface 17 at the upper end of the inner frame 4, further the rotation of the lower die 5 is not influenced, an upper slot 19 limiting the upper half of the connecting rod 7 is arranged in the middle of the upper end of the inner frame 4, chamfers are arranged on two sides of the upper slot 19, the connecting rod 7 is convenient to enter, and the width of the upper slot 19 is slightly larger than that of the connecting rod 7 and a gap for the connecting rod 7 to rotate is reserved. In order to further reduce the abrasion between the lower die 5 and the cambered surface 17, the lubricating grease can be smeared on the cambered surface 17, the lubricating degree is increased, the middle part of the lower end of the lower die 5 is contacted with the tangent line of the upper end of the cambered surface 17 in a normal state, and a plane is arranged at the upper end of the cambered surface 17 according to the rotating radian of the lower die 5, so that the contact area between the inner frame 4 and the lower die 5 is increased, and the stamping is facilitated.

Further, a first rotating shaft 8 fixed in the middle of one end of the fixed shaft 3 is fixed in the middle of the first gear 10, and a second rotating shaft 20 movably inserted into the side wall of the inner frame 4 is fixed in the middle of the second gear 12. According to the utility model, one end of the second rotating shaft 20 far away from the second gear 12 is fixed with the inner frame 4 through the bearing, the connection mode is common, and the second gear 12 drives the inner ring of the bearing to rotate through the second rotating shaft 20, the second gear 12 is provided with supporting force to rotate along the transverse axis of the second rotating shaft 20, the second gear 12 drives the first gear 10 to rotate, and the first rotating shaft 8 drives the fixed shaft 3 to rotate.

The surface of the inner frame 4 is welded with a limit frame 18 on the side corresponding to the fixed plate 14, the fixed plate 14 penetrates into the middle of the limit frame 18, and one side, away from the rack 11, of the fixed plate 14 is attached to the limit frame 18 and can slide. According to the utility model, the limiting frame 18 limits the movement of the rack 11, so that the rack can move according to a preset route.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The waste discharging mechanism of the stamping die is characterized by comprising an inner frame (4) and an outer frame (1) which are fixedly arranged on the ground, wherein the inner frame (4) is arranged in the outer frame (1), two sides of the middle part of the inner frame (4) are movably inserted with rotatable fixing shafts (3), two symmetrical lower dies (5) are fixedly arranged in the middle of the fixing shafts (3) through connecting rods (7), and when stamping is performed, the bottom ends of the lower dies (5) are abutted against cambered surfaces (17) at the upper ends of the inner frame (4) and are combined in a sliding manner;

the outer side of the inner frame (4) is rotationally provided with a first gear (10) fixedly arranged with the fixed shaft (3), the first gear (10) is in meshed transmission with a second gear (12), an upper die mechanism (2) is arranged at the position, corresponding to the lower die (5), of the lower end of the outer frame (1), a fixed plate (14) is fixedly arranged on one side of the upper die mechanism (2), and a rack (11) meshed with the second gear (12) is fixedly arranged at the lower end of the fixed plate (14);

the second gear (12) has different numbers of teeth with the first gear (10), the second gear (12) has more numbers of teeth than the first gear (10) so as to increase the gear ratio, a collecting box (6) corresponding to the lower die (5) is fixedly arranged at the lower end of the inner frame (4), and the width of the collecting box (6) is larger than that of the lower die (5).

2. The scrap discharging mechanism of a press die according to claim 1, wherein: the center of the cambered surface (17) at the upper end of the inner frame (4) falls on the axis of the connecting rod (7) rotating by taking the fixed shaft (3) as the axis, and only part of the lower end of the lower die (5) is contacted with the cambered surface (17) at the upper end of the inner frame (4), so that the rotation of the lower die (5) is not influenced.

3. The scrap discharging mechanism of a press die according to claim 1, wherein: an upper slot (19) limiting the upper half part of the connecting rod (7) is formed in the middle of the upper end of the inner frame (4), and the width of the upper slot (19) is slightly larger than that of the connecting rod (7) and a gap for the connecting rod (7) to rotate through is reserved.

4. The scrap discharging mechanism of a press die according to claim 1, wherein: the middle part of the first gear (10) is fixedly provided with a first rotating shaft (8) fixedly arranged at the middle part of one end of the fixed shaft (3), and the middle part of the second gear (12) is fixedly provided with a second rotating shaft (20) movably inserted into the side wall of the inner frame (4).

5. The scrap discharging mechanism of a press die according to claim 1, wherein: the fixed plate (14) is provided with a side slot (15) facing one side of the first gear (10), the rack (11) is welded at the lower half part of the side slot (15), the length of the rack (11) is set up to drive the lower die (5) to rotate 180 degrees through the second gear (12) and the first gear (10), the upper half part distance of the side slot (15) is separated from the second gear (12), and the upper half part distance is the distance for accommodating a workpiece between the upper die and the lower die (5) of the upper die mechanism (2).

6. The scrap discharging mechanism of a press die according to claim 1, wherein: a brush (9) for cleaning small metal particles is fixedly arranged on one side of the upper end of the collecting box (6), and bristles of the brush (9) can be contacted with the stamping surface of the rotary lower die (5) to clean the small metal particles.

7. The scrap discharging mechanism of a press die according to claim 1, wherein: the surface of the inner frame (4) is fixedly provided with a limiting frame (18) at one side corresponding to the fixed plate (14), the fixed plate (14) penetrates into the middle part of the limiting frame (18), and one side, far away from the rack (11), of the fixed plate (14) is adhered to the limiting frame (18) and can slide.

8. The scrap discharging mechanism of a press die according to claim 1, wherein: limiting holes (16) are formed in one side of the lower die (5) located on the fixed plate (14), limiting pins (13) detachably connected with the limiting holes (16) are movably penetrated through one side of the outer frame (1), and a hydraulic rod is fixed between the upper die mechanism (2) and the bottom of the outer frame (1).