Stamping die with automatic feeding and discharging functions

Abstract

The utility model discloses a stamping die with automatic feeding and discharging functions, which comprises a die seat, a stamping frame is mounted at the top of the die seat, a stamping head is mounted on the stamping frame through a hydraulic rod, and a stamping table is movably mounted on the inner side of the die seat through a driving mechanism. On the basis of an original automatic feeding and discharging design, a demolding structure linked with feeding and discharging is designed, when the stamping table moves to the outer side of the stamping frame, the high-position inclined face of the supporting plate jacks up the ejection plate through the pulley, a natural feeding platform is formed, after a plate is placed, the pulley slides to the low position along the inclined face in the inward moving process of the stamping table, and the plate is automatically discharged. During stamping, the pressing and fixing plate firstly presses the plate, and then the stamping head completes U-shaped stamping; in the demolding stage, the stamping table moves outwards, the ejector plate rises again to eject the finished product away from the containing table, manual demolding is not needed, and the problems that in the prior art, the total material taking difficulty is large, and the defects of material clamping, scratching and the like occur frequently are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to punch die design technical field especially, it is a kind of punch die with automatic feeding and discharging. BACKGROUND

[0002] U-shaped plate as a kind of common metal processing parts, is widely used in automobile, household appliance, electronics and other fields.The traditional U-shaped plate punch die mostly adopts artificial feeding and discharging mode, there are many deficiencies, therefore in recent years, with the continuous development of automation technology, punch die with automatic feeding and discharging gradually become mainstream.This kind of die realizes the automatic feeding of metal plate and the automatic discharge of stamping part by integrating automatic feeding mechanism and automatic discharge mechanism, significantly improves production efficiency and processing accuracy.

[0003] However, traditional design scheme still has deficiencies in practical application, traditional die often only relies on simple moving mechanism to move workpiece from below punch head, but ignores the adhesion problem between workpiece and stamping table due to electrostatic adsorption or micro deformation in stamping process, this adhesion not only increases the difficulty of taking material, leads to frequent defects such as jamming and scratching.

[0004] Therefore, the applicant proposes a kind of punch die with automatic feeding and discharging to solve the problem. UTILITY MODEL CONTENT

[0005] The utility model provides a kind of punch die with automatic feeding and discharging, solve the problem raised in the above background.

[0006] To solve the above technical problems, the utility model provides a kind of punch die with automatic feeding and discharging, comprising: die seat, the die seat top installs stamping frame, the stamping frame is installed with punch head by hydraulic rod, the inside of die seat is moved and is installed with stamping table by drive mechanism, the inside bottom surface of stamping table is installed with placement platform, stamping plate is placed on placement platform, and two ends cross placement platform side edge, the placement platform is connected with automatic ejection mechanism, the automatic ejection mechanism includes the ejection plate in the recess in the top of placement platform, the bottom of ejection plate is equipped with four lifting plates, the lifting plate passes through placement platform and stamping table and forms sliding connection, the bottom end of lifting plate is installed with pulley, the pulley is rolled on the surface of support plate installed in the inner chamber of die seat, and the support surface of support plate is formed high support surface and low support surface by designing slope;

[0007] When pulley is in low support surface, ejection plate is aligned with the surface of placement platform.

[0008] Preferably, the lifting plate is equipped with two at two ends in the bottom of placement platform, and the two lifting plates of one end are located at the inside position of the two lifting plates of another end, four pulleys can be moved to the support slope of support plate simultaneously.

[0009] Preferably, the placing table surface is provided with a row of notches, and the bottom end of the notches is connected with a reset spring;

[0010] When the pulley is in the low position supporting surface, the reset spring is in a state of no stretching and compression.

[0011] Preferably, the mold base is provided with an electric push rod penetrating through both sides, and the retractable end of the electric push rod in the mold base is provided with a square plate.

[0012] Preferably, the mold base is provided with a code alignment plate and a stop block at both ends of the top, the code alignment plate and the stop block are parallel to the outer walls of both ends of the mold base, and are designed at right angles with the square plate.

[0013] Preferably, a guide rod is slidably installed on the stamping head, a pressing plate is connected to the bottom of the guide rod, and a buffer spring is connected between the pressing plate and the stamping head.

[0014] Preferably, the driving mechanism comprises a lead screw threadedly connected with the protrusions at the bottom of the stamping table, and two convex slides symmetrically fixed at the bottom of the stamping table, the lead screw is rotatably installed on the inner side of the mold base and is driven to rotate by the motor installed on one side of the mold base, and the convex slides slide in the slide way on the mold base.

[0015] Compared with the related art, the stamping die with automatic feeding and discharging has the following beneficial effects:

[0016] On the basis of the original automatic feeding and discharging design, the mold stripping structure linked with the feeding and discharging is designed, when the stamping table moves to the outside of the stamping frame, the high inclined surface of the supporting plate lifts the ejection plate through the pulley to form a natural feeding platform, after the plate is placed, the pulley slides into the low position along the inclined surface during the inward movement of the stamping table, so that the ejection plate is flush with the placing table to complete the accurate positioning, the pressing plate first presses the plate during stamping, and then the stamping head completes the U-shaped stamping; during the stripping stage, the stamping table moves outward, the ejection plate is lifted again to lift the finished product away from the placing table, so that manual stripping is not needed, and the problem of high difficulty in taking materials in the prior art, which leads to frequent defects such as material jamming and scratching, is solved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall three-dimensional structure of the utility model Figure 1 ;

[0018] Figure 2 is a schematic diagram of the overall three-dimensional structure of the utility model Figure 2 ;

[0019] Figure 3 is a schematic diagram of the overall front view cross-sectional structure of the utility model;

[0020] Figure 4The utility model discloses a stamping table three-dimensional structure schematic drawing.

[0021] Figure 5 The utility model discloses an automatic ejection mechanism three-dimensional structure schematic drawing Figure 1 ;

[0022] Figure 6 The utility model discloses an automatic ejection mechanism three-dimensional structure schematic drawing Figure 2 ;

[0023] Figure 7 The utility model discloses a placing table three-dimensional structure schematic drawing.

[0024] Figure 8 The utility model discloses a partial three-dimensional structure schematic drawing.

[0025] The number of figure: 1, mould seat;11, stamping frame;12, hydraulic stem;13, stamping head;14, press solid board;15, guide rod;16, buffer spring;2, drive mechanism;21, screw;22, male slide plate;23, motor;3, stamping table;31, placing table;32, electric push rod;33, square board;34, code neat board;35, stopper;4, automatic ejection mechanism;41, ejection board;42, lifting plate;43, pulley;44, support plate;45, reset spring. Specific implementation

[0026] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments; all other embodiments obtained by the ordinary skilled in the art without creative labor on the basis of the embodiments in the utility model all belong to the range of the utility model protection.

[0027] By Figures 1-8The utility model provides a kind of stamping die with automatic feeding and discharging, comprising: die seat 1, stamping frame 11 is installed on the top of die seat 1, stamping head 13 is installed on stamping frame 11 by hydraulic rod 12, it can be designed as U shape, stamping platform 3 is movably installed on the inner side of die seat 1 by driving mechanism 2, placing platform 31 is installed on the inside bottom surface of stamping platform 3, stamping plate is placed on placing platform 31, and two ends cross the side of placing platform 31, so as to facilitate stamping, workpiece is also in the shape of "U" after stamping is completed, and it is adhered with the side of placing platform 31, placing platform 31 is connected with automatic ejector mechanism 4 of die seat 1, automatic ejector mechanism 4 includes ejector plate 41 in the top recess of placing platform 31, four lifting plates 42 are arranged on the bottom of ejector plate 41, lifting plate 42 passes through placing platform 31 and stamping platform 3 and forms sliding connection, lifting plate 42 is installed with pulley 43 at the bottom end, pulley 43 is rolled on the surface of support plate 44 installed in the inner cavity of die seat 1, and the support surface of support plate 44 is formed with high support surface and low support surface by designing slope, when pulley 43 is in low support surface, ejector plate 41 is aligned with the surface of placing platform 31, two lifting plates 42 are arranged at the both ends of the bottom of placing platform 31, and the two lifting plates 42 of one end are located at the inner side of the two lifting plates 42 of the other end, four pulleys 43 can be moved to the support slope of support plate 44 simultaneously, a row of recesses are arranged on the surface of placing platform 31, and reset spring 45 is connected between the bottom end of recess and ejector plate 41, guide rod 15 is slidably installed on stamping head 13, pressure plate 14 is connected with the bottom of guide rod 15, buffer spring 16 is connected between pressure plate 14 and stamping head 13, when pulley 43 is in low support surface, reset spring 45 is in the state of not stretching and compression.

[0028] When processing, driving mechanism 2 drives stamping platform 3 to move to the outer end of stamping frame 11, at this time, pulley 43 is located on the high support surface of support plate 44, and the surface of ejector plate 41 is slightly higher than the surface of placing platform 31 under the push of lifting plate 42, but it does not separate from the recess of placing platform 31, at this time, the operator places the plate to be stamped on ejector plate 41, and the both ends of the plate naturally extend to the outside of placing platform 31, facilitating subsequent stamping forming, then driving mechanism 2 drives stamping platform 3 to move to the inside of stamping frame 11, with the movement of stamping platform 3, pulley 43 slides along the slope of support plate 44 to low support surface, so that lifting plate 42 drives ejector plate 41 to descend until the surface of ejector plate 41 is flush with the surface of placing platform 31, and the plate is stably positioned, hydraulic rod 12 drives stamping head 13 to press down, and the position of pressure plate 14 is lower than that of stamping head 13, see Figure 3, the plate is first contacted and compressed under the assistance of the guide rod 15 and the buffer spring 16, it is ensured that the plate does not deviate during the stamping process, the stamping head 13 continues to press down, the plate is stamped into a U-shaped workpiece, the two sides of the workpiece are bent to form a U-shaped piece and are attached to the side edges of the placing table 31, after the stamping is completed, the hydraulic rod 12 drives the stamping head 13 to rise and reset, the driving mechanism 2 reverses the operation, the stamping table 3 moves outward, the pulley 43 slides back to the high-position supporting surface along the inclined surface of the supporting plate 44, the ejection plate 41 rises, the formed workpiece is lifted to make it separate from the placing table 31, when the stamping table 3 completely moves out of the stamping frame 11, the workpiece is completely ejected, the operator or the mechanical hand can easily take away the finished product, and at the same time, the new plate to be processed is placed, so that continuous automatic production is realized, wherein the inner side supporting plate 44 and the outer side supporting plate 44 are different in inclined surface position, adapt to the distance difference between the pulleys 43 at both ends, and the reset spring 45 improves the stability, and the ejection plate 41 is more stable when it descends.

[0029] The electric push rod 32 is arranged on both sides of the die seat 1, the telescopic end of the electric push rod 32 in the die seat 1 is provided with the square plate 33, the die seat 1 is provided with the alignment plate 34 and the stop block 35 at both ends of the top, the alignment plate 34 and the stop block 35 are parallel to the outer walls of the die seat 1 at both ends and are designed to be perpendicular to the square plate 33.

[0030] Further, in the position optimization design of the workpiece, when the workpiece is placed, the workpiece plate is attached to the alignment plate 34 to ensure that the position is correct, the other end of the workpiece plate has a little spacing with the stop block 35, which plays a limiting role and does not affect the placement and taking, that is to say, even if the workpiece plate moves, it is in the appropriate stamping position between the alignment plate 34 and the stop block 35, because the length of the stamping head is sufficient, then after reaching the stamping position, the ejection plate 41 is lowered to complete, the two electric push rods 32 are started together, the square plate 33 contacts the workpiece plate on both sides, so that the workpiece on both sides is in the appropriate stamping position, then the square plate 33 is reset to provide space for stamping, it is noted that the stamping head does not contact the square plate 33 at this time, for details, see Figure 3 , which is very convenient and improves the machining precision.

[0031] The driving mechanism 2 includes the lead screw 21 which is threadedly connected with the stamping table 3 at the bottom and the two convex sliding plates 22 which are symmetrically fixed at the bottom of the stamping table 3, the lead screw 21 is rotatably installed on the inner side of the die seat 1 and is driven to rotate by the motor 23 installed on one side of the die seat 1, the convex sliding plates 22 slide in the slide way on the die seat 1, and the stamping table 3 can slide on the face of the die seat 1 on which the slide way is designed, so that the support effect is improved, that is, as shown in the a face of Figure 3 .

[0032] Further, in the driving structure design of feeding and discharging, the motor is started to drive the screw rod 21 to rotate and drive the mold base 1 to move through the limiting sliding of the convex slide plate 22, which is very convenient, realizes automatic feeding and discharging, improves safety, and can be linked with demolding.

[0033] The automatic feeding and discharging stamping die provided by the utility model realizes the full-automatic stamping operation cycle through the innovative mechanical linkage design, when the stamping table 3 moves to the outside of the stamping frame 11, the high slope of the supporting plate 44 lifts the ejection plate 41 through the pulley 43, forms a natural feeding platform, after the plate is placed (at this time, one end of the plate is attached to the code plate 34), the pulley 43 slides into the low position along the slope during the inward movement of the stamping table 3, so that the ejection plate 41 is flush with the placing table 31 to complete accurate positioning, the pressing plate 14 presses the plate first during stamping, and then the stamping head 13 completes U-shaped stamping, the stamping table 3 moves out during demolding, and the ejection plate 41 is lifted again to lift the finished product away from the placing table 31, the whole process realizes accurate positioning through the square plate 33 driven by the electric push rod 32, cooperates with the screw rod 21 transmission system driven by the motor 23, forms a complete automatic production closed loop, and it should be noted that the motor 23, the electric push rod 32 and the hydraulic rod 12 used in the case are all existing conventional technical means, and the principle thereof will not be described herein.

[0034] It should be noted that, in the present document, relational terms such as first and second and the like can be 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. Also, 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 can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present utility model have been shown and described, it would be appreciated by those of ordinary skill in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A stamping die with automatic loading and unloading, comprising: A mold base (1), on the top of which a stamping frame (11) is mounted, and a stamping head (13) is mounted on the stamping frame (11) via a hydraulic rod (12), characterized in that: The inner side of the mold base (1) is equipped with a stamping table (3) via a drive mechanism (2). A placement platform (31) is installed on the bottom surface of the stamping table (3). The stamping plate is placed on the placement platform (31) and both ends extend beyond the sides of the placement platform (31). The placement platform (31) is connected to the mold base (1) by an automatic ejection mechanism (4). The automatic ejection mechanism (4) includes an ejection plate (41) located in the top recess of the placement platform (31). The bottom of the ejection plate (41) is provided with four lifting plates (42). The lifting plates (42) pass through the placement platform (31) and the stamping table (3) to form a sliding connection. The bottom end of the lifting plate (42) is equipped with a pulley (43). The pulley (43) rolls on the surface of the support plate (44) installed in the inner cavity of the mold base (1). The support surface of the support plate (44) is designed with an inclined surface to form a high support surface and a low support surface. When the pulley (43) is in the low support position, the ejector plate (41) is aligned with the surface of the placement platform (31).

2. A stamping die with automatic loading and unloading as described in claim 1, characterized in that, The lifting plates (42) are provided at both ends of the bottom of the placement platform (31), and the two lifting plates (42) at one end are located inside the two lifting plates (42) at the other end. All four pulleys (43) can move simultaneously to the supporting slope of the support plate (44).

3. A stamping die with automatic loading and unloading as described in claim 1, characterized in that, The surface of the placement platform (31) is provided with a row of recesses, and the bottom end of the recesses is connected to the top plate (41) with a return spring (45); When the pulley (43) is in the low support position, the return spring (45) is in a state of no tension and compression.

4. A stamping die with automatic loading and unloading as described in claim 1, characterized in that, Electric push rods (32) are provided on both sides of the mold base (1), and a square plate (33) is installed on the telescopic end of the electric push rods (32) inside the mold base (1).

5. A stamping die with automatic loading and unloading according to claim 2, characterized in that, The mold base (1) is equipped with a aligning plate (34) and a stop block (35) at both ends of the top. The aligning plate (34) and the stop block (35) are parallel to the outer walls of both ends of the mold base (1) and are designed to be right angles to the square plate (33).

6. A stamping die with automatic loading and unloading according to claim 1, characterized in that, A guide rod (15) is slidably mounted on the stamping head (13), and a pressure plate (14) is connected to the bottom of the guide rod (15). A buffer spring (16) is connected between the pressure plate (14) and the stamping head (13).

7. A stamping die with automatic loading and unloading according to claim 1, characterized in that, The drive mechanism (2) includes a lead screw (21) threadedly connected to the bottom protrusion of the stamping table (3) and two convex sliding plates (22) symmetrically fixed at the bottom of the stamping table (3). The lead screw (21) is rotatably mounted on the inner side of the mold base (1) and is driven to rotate by a motor (23) installed on one side of the mold base (1). The convex sliding plates (22) slide in the slide rails on the mold base (1).

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