Die structure for trimming stamping part

Abstract

The utility model provides a die structure for trimming a stamping part. The die structure comprises a lower die, the upper die is arranged above the lower die and is connected with the lower die through a floating assembly; the movable die is arranged above the upper die and is used for being connected with press equipment; the centering positioning support pillar is arranged at the bottom end of the movable die and is used for positioning a stamping part; the two trimming pressing bodies are arranged at the bottom end of the movable mold and are symmetrically distributed on the two sides of the centering positioning jacking column; the cutters are arranged on the lower die and can penetrate through the upper die upwards, the cutters correspond to the edge cutting pressing bodies one to one, and the cutting edge faces of the cutters can be tangent to the outer side faces of the edge cutting pressing bodies so as to achieve the cutting-off action. According to the die structure, vertical staggering is completed through the cutter and the trimming pressing body, so that the action of cutting off burrs of iron core stamping part waste is achieved, the trimming effect is achieved, and compared with a traditional manual trimming mode, the die structure is high in working efficiency and good in machining quality, and the production efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to stamping part production technical field, specifically, it shows a die structure of stamping part trimming. BACKGROUND

[0002] Motor core is the core component of motor, is used for increasing inductance coil's magnetic flux, realizes electromagnetic power's maximum conversion. Stamping is a common process step in the production process of motor core, the workpiece to be processed is clamped on the lower die, the upper die is connected to the driving device to stamp the workpiece on the lower die, so that the workpiece forms the required shape, and finally the iron core stamping part is made.

[0003] But the above-mentioned iron core stamping part will form waste burr on the edge in the stamping process, and the workpiece usually needs to be trimmed after the stamping process to remove these waste burrs. At present, the iron core workpiece stamped by the stamping die is manually trimmed by manual work, which leads to complicated processing process and affects work efficiency. Therefore, the technical personnel in the art proposes a die structure scheme for trimming the above-mentioned iron core stamping part to solve the problems raised in the above background technology. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a die structure of stamping part trimming, simple and practical structure, good processing consistency.

[0005] Technical scheme as follows:

[0006] A die structure of stamping part trimming, comprising:

[0007] Lower die;

[0008] Upper die, it is located above lower die and is connected with lower die through floating assembly;

[0009] Moving die, it is located above upper die and is used to be connected with press equipment;

[0010] Centering positioning jacks, it is located at the bottom end of moving die and is used for positioning stamping part;

[0011] Two edge cutting pressure bodies, it is located at the bottom end of moving die and is symmetrically distributed on the two sides of centering positioning jacks;

[0012] Cutting knife, it is located in lower die and can be penetrated through upper die upwards, cutting knife and edge cutting pressure body one to one correspond, and the cutting edge of cutting knife can be tangent to the outer side of edge cutting pressure body to realize cutting action.

[0013] Optionally, the end of the centering positioning top column is formed with a shrinkage opening, and the end of the centering positioning top column is formed with a profiled supporting part which can be just sleeved with the stamping part. The centering positioning top column approaches the core stamping part downward, and first completes the butt joint with the slot on the core stamping part through the shrinkage opening, and then gradually extrudes into the slot of the core stamping part through the profiled supporting part, until the core stamping part is completely sleeved on the centering positioning top column, at this time, only relative sliding in the vertical direction can be generated between the core stamping part and the centering positioning top column, and relative rotation in the horizontal direction cannot be generated.

[0014] Optionally, a guide groove is formed in the middle of the outer side of the trimming pressure body, so that the blade surface of the cutter can pass through. When the upper die and the lower die complete the die closing, the cutter can be staggered with the trimming pressure body along the setting direction of the guide groove, and the guide groove can ensure the stability of the position of the cutter when cutting, so that displacement deviation of the cutter and the trimming pressure body is avoided.

[0015] When the stamping part is positioned on the top surface of the upper die, the inner side surface of the guide groove is flush with the side surface to be trimmed of the stamping part. In this way, when the cutter is staggered with the trimming pressure body, the cutting action of the cutter on the waste edge on the side surface to be trimmed of the stamping part can be just performed, so that the trimming purpose is achieved.

[0016] Optionally, the floating assembly comprises a spring member arranged between the upper die and the lower die, and a plurality of guide shafts arranged on the lower die and movably inserted and matched with the upper die. The main function of the guide shaft is to guide the movement direction of the upper die, and the spring member can provide compression force and elastic force, so that the upper die can be automatically reset after the die closing of the upper die and the lower die is completed.

[0017] Optionally, a receiving opening is formed in the center of the top surface of the upper die, so that the end of the centering positioning top column can enter. When the centering positioning top column successfully positions the core stamping part on the top surface of the upper die, part of the end of the centering positioning top column can enter the receiving opening, so that it can be ensured that the bottom surface of the core stamping part can always abut against the top surface of the upper die.

[0018] Compared with the prior art, the beneficial effects of the utility model lie in that based on the stamping principle, the core stamping part is positioned and fixed on the surface of the upper die through the centering positioning top column, the trimming pressure body is in contact with the top surface of the core stamping part, the upper die is continuously stamped, the core stamping part moves downward together with the upper die until the die closing of the upper die and the lower die is completed, in this process, the cutter and the trimming pressure body are staggered up and down, so that the cutting action of the waste edge of the core stamping part is realized, the trimming effect is realized, compared with the traditional manual trimming mode, the working efficiency is high, the processing quality is good, and the production efficiency is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1It is a front view schematic diagram of the die structure for trimming the stamping part of the embodiment of the present utility model;

[0020] Figure 2 It is a top view schematic diagram about the upper die part of the embodiment of the present utility model;

[0021] Figure 3 It is a bottom view schematic diagram about the movable die part of the embodiment of the present utility model;

[0022] Figure 4 It is a related schematic diagram about the floating assembly part of the embodiment of the present utility model;

[0023] The related marks in the drawing: 1 - lower die, 2 - upper die, 3 - floating assembly, 4 - movable die, 5 - centering positioning top column, 6 - trimming pressure body, 7 - cutter, 21 - containing mouth, 31 - spring piece, 32 - guide shaft, 51 - contraction mouth, 52 - profiling support part, 61 - guide groove. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the present utility model will be described clearly and completely in combination with the drawings in the embodiments of the present utility model, obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor are within the protection scope of the present utility model.

[0025] The embodiment of the present utility model provides a die structure for trimming the stamping part, which is used for solving the technical problems proposed in the background art. Figure 1 、 Figure 2 and Figure 3As shown, specifically, mainly includes the lower die 1, the upper die 2, the movable die 4, the centering positioning top column 5, the trimming pressure body 6, and the cutting knife 7. The upper die 2 is arranged above the lower die 1, and it is connected with the lower die 1 through a floating assembly 3, that is, the upper die 2 and the lower die 1 can realize clamping and separation; the movable die 4 is arranged above the upper die 2 and is connected with the external press equipment, the movable die 4, the upper die 2 and the lower die 1 are arranged in sequence from top to bottom, and the center lines of the three are on the same straight line; the centering positioning top column 5 is arranged at the bottom end of the movable die 4 in a vertical posture and is at the bottom end center of the movable die 4, and it is mainly used for realizing the positioning effect of the core stamping part; the two trimming pressure bodies 6 are arranged at the bottom end of the movable die 4 and are symmetrically distributed on the two sides of the centering positioning top column 5, and the thickness of the trimming pressure body is less than the height of the centering positioning top column; the cutting knife 7 is arranged on the lower die 1 in a vertical posture, and the cutting knife 7 can freely penetrate through the upper die 2 upwards, the number and position of the cutting knife 7 correspond to the number and position of the trimming pressure body 6 one by one, the cutting edge of the cutting knife 7 can be tangent to the outer side of the trimming pressure body 6 to realize the cutting action, and it is worth noting that in the initial state, the height of the part exposed by the cutting knife on the upper die will not exceed the thickness of the core stamping part placed on the top surface of the upper die.

[0026] In the embodiment, the end of the centering positioning top column 5 is formed with a contraction opening 51, and the end of the centering positioning top column 5 is formed with a profiled supporting part 52 which can be just fitted with the stamping part. The centering positioning top column approaches the core stamping part downwards, first completes the butt joint with the slot on the core stamping part through the contraction opening, and then gradually extrudes into the slot of the core stamping part through the profiled supporting part, until the core stamping part is completely fitted on the centering positioning top column, that is, the core stamping part adjusts its own placement angle relative to the upper die according to the design form of the centering positioning top column, at this time, the core stamping part and the centering positioning top column can only produce relative sliding in the vertical direction, and cannot produce relative rotation in the horizontal direction.

[0027] In the embodiment, the middle part of the outer side of the trimming pressure body 6 is formed with a guide groove 61 for the cutting edge of the cutting knife 7. When the upper die and the lower die complete clamping, the cutting knife can be staggered with the trimming pressure body along the setting direction of the guide groove, and the guide groove can ensure the stability of the position of the cutting knife during cutting, avoiding displacement deviation of the cutting knife and the trimming pressure body.

[0028] It is worth noting that when the core stamping part is positioned on the top surface of the upper die 2, the inner side of the guide groove 61 is flush with the side to be trimmed of the stamping part, that is, the inner side of the guide groove, the side to be trimmed of the stamping part and the cutting edge of the cutting knife are tangent, that is, in an almost aligned state. In this way, when the cutting knife and the trimming pressure body are staggered, the cutting knife can just cut off the waste edge on the side to be trimmed of the stamping part, thereby achieving the trimming purpose.

[0029] In the embodiment, the floating assembly 3 comprises a spring member 31 arranged between the upper die 2 and the lower die 1, a plurality of guide shafts 32 arranged on the lower die 1 and movably inserted into the upper die 2, the spring member 31 is located at the middle position between the upper die 2 and the lower die 1, and in the initial state, the spring member 31 is in the natural elongation state; the guide shafts 32 are designed as four in general, and the four guide shafts 32 are arranged at the four corner positions of the lower die 1. The main function of the guide shafts is to guide the movement direction of the upper die, and the spring member can provide compression force and elastic force, so that the upper die can be automatically reset after the upper die and the lower die are completed.

[0030] In the embodiment, a receiving port 21 is arranged at the center of the top surface of the upper die 2, so that the end of the centering positioning top column 5 can enter the receiving port. When the centering positioning top column successfully positions the core stamping part on the top surface of the upper die, the end of the centering positioning top column can enter the receiving port, so that the bottom surface of the core stamping part can always abut against the top surface of the upper die.

[0031] When the mold structure of the embodiment is used, first, the core stamping part is placed on the middle of the top surface of the upper die 2 in a general posture, and then the press equipment drives the movable die 4 to approach the upper die 2. The contraction port 51 of the centering positioning top column 5 is first connected with the slot of the core stamping part to perform rough positioning, and then the profiled supporting part 52 of the centering positioning top column 5 is gradually extruded into the slot of the core stamping part until the core stamping part is completely sleeved on the centering positioning top column 5, at this time, the core stamping part is also attached to the top surface of the upper die 2, and the trimming pressure body 6 is also in contact with the top surface of the core stamping part. The press equipment continues to drive the movable die 4 to move downward, so that the core stamping part can move downward together with the upper die 2 until the upper die 2 and the lower die 1 are completed. At the same time, the cutter 7 moves relative to the upper die 2, and the cutter 7 and the trimming pressure body 6 form an up-down staggered structure, and in the process of staggering, the blade of the cutter 7 completes the cutting action of the waste edge of the core stamping part, so that the trimming effect is realized. The press equipment stops applying force to the movable die 4, the upper die 2 returns to the initial position under the action of the floating assembly 3, and finally the processed core stamping part is taken off from the centering positioning column 5. The above process is repeated.

[0032] The above only describes some embodiments of the present application. Those skilled in the art can make some modifications and improvements without departing from the inventive concept, and these all belong to the protection scope of the present application.

Claims

1. A die structure for trimming stamped parts, characterized in that, include: Lower mold (1); The upper mold (2) is located above the lower mold (1) and is connected to the lower mold (1) by a floating component (3); The moving mold (4) is located above the upper mold (2) and is used to connect to the press equipment; The center positioning top post (5) is located at the bottom end of the moving mold (4) and is used to position the stamped part; Two edge-cutting pressing bodies (6) are located at the bottom of the moving mold (4) and symmetrically distributed on both sides of the centering positioning top post (5); The cutter (7) is located in the lower mold (1) and can pass through the upper mold (2) upwards. The cutter (7) corresponds one-to-one with the cutting edge pressing body (6), and the cutting edge of the cutter (7) can be tangent to the outer surface of the cutting edge pressing body (6) to achieve the cutting action.

2. The die structure for trimming stamped parts according to claim 1, characterized in that, The centering positioning top post (5) has a contraction opening (51) at its end, and the upper part of the centering positioning top post (5) is formed as a conformal support (52) that can fit perfectly with the stamping part.

3. The die structure for trimming stamped parts according to claim 1, characterized in that, A guide groove (61) is formed in the middle of the outer side of the cutting edge press (6) so that the cutting edge of the cutter (7) can pass through.

4. The die structure for trimming stamped parts according to claim 3, characterized in that, When the stamped part is positioned on the top surface of the upper die (2), the inner side of the guide groove (61) is flush with the side of the stamped part to be trimmed.

5. The die structure for trimming stamped parts according to claim 1, characterized in that, The floating component (3) includes a spring (31) disposed between the upper mold (2) and the lower mold (1) and several guide shafts (32) disposed on the lower mold (1), with the several guide shafts (32) being movably inserted and engaged with the upper mold (2).

6. The die structure for trimming stamped parts according to claim 1, characterized in that, The upper mold (2) has a receiving opening (21) at the center of its top surface for the end of the centering positioning top post (5) to enter.

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