Precision stamping die feeding mechanism

Abstract

The utility model relates to the field of precision dies, in particular to a feeding mechanism of a precision stamping die. The device comprises a base, a stamping die is arranged on the base, a groove corresponding to the stamping die in shape is formed in the base, the stamping die is arranged in the groove, and a plurality of transverse limiting assemblies and an automatic pressing and feeding assembly are arranged on the portion, on the side of the stamping die, of the base. According to the device, the transverse limiting assembly is arranged, steel coil materials are automatically clamped towards the middle in the feeding process, and therefore the feeding position is kept, and deflection and deviation are prevented; according to the device, the automatic pressing and feeding assembly is arranged, automatic feeding is achieved when the die is opened, the feeding length can be accurate through a stepping motor, and after feeding is completed, a steel coil material can be fixed through the self-locking effect of the stepping motor, so that the steel coil material is prevented from deviating; the device can adapt to steel coils with different thicknesses and widths, meanwhile, the using effect is guaranteed, and practicability is good.

Description

Technical Field

[0001] The utility model relates to the field of precision molds, and particularly relates to a feeding mechanism for a precision stamping mold. Background Art

[0002] A stamping mold is a mold that directly processes metal or non-metal materials into semi-finished or finished products. A precision stamping mold is based on a stamping mold and adds multiple sets of structures. During the stamping process, the metal sheet is continuously deformed, so as to process it into various complex-shaped parts or products. It is commonly used in the manufacture of high-precision parts such as electronics, automobiles, aerospace, and medical devices. The dimensional accuracy, shape accuracy, and surface quality of precision stamped parts can all reach a relatively high level, can meet the requirements of interchangeability, and have good process performance and service performance.

[0003] During the stamping process of precision parts, the steel coil to be stamped is loaded on an uncoiler used in conjunction with a stamping machine, and the rotation of the unloading roller on the uncoiler is controlled to achieve automatic feeding. However, as the uncoiling process progresses, the diameter of the steel coil gradually decreases, and the length of each material release by the uniformly rotating unloading roller also gradually shrinks, resulting in uneven material release and difficult feeding. Therefore, it is necessary to set an adjustment mechanism between the uncoiler and the punching press to control the length of the steel coil fed each time, which makes the processing equipment numerous. And because the steel coil materials processed each time are not all of the same size, manual debugging is required when the size changes. Moreover, the existing molds and the fed materials are rarely fixed, and even a slight deviation during the processing may cause deviation in the product accuracy. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a reasonably designed feeding mechanism for a precision stamping mold in view of the defects and deficiencies of the prior art, which can solve the above-mentioned defects.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions: It includes a base, a stamping mold is provided on the base, a groove corresponding to the outer shape of the stamping mold is opened in the base, the stamping mold is arranged in the groove, and a plurality of groups of horizontal limiting components and an automatic pressing and feeding component are provided on the base at the side position of the stamping mold, and the horizontal limiting components and the automatic pressing and feeding component are both arranged facing the stamping mold.

[0006] Preferably, the automatic pressing and feeding assembly includes feeding support columns vertically arranged on both sides of the base. A driving roller shaft is rotatably installed between the two feeding support columns through bearings. An external feeding motor is arranged on the outside of one of the feeding support columns. The rotating shaft of the feeding motor movably penetrates through the feeding support column and is connected to the driving roller shaft. A pressing activity groove is formed inside the feeding support column directly above the bearing. A pressing slide rail is vertically arranged inside the pressing activity groove. A pressing slide block is slidably installed on the pressing slide rail. A pressing spring is connected between the upper side of the pressing slide block and the top wall of the pressing activity groove. The pressing spring is sleeved outside the pressing slide rail. A driven roller shaft is rotatably installed between the two pressing slide blocks.

[0007] Preferably, the lateral limiting assembly includes a limiting activity groove formed inside the base. A limiting downward slide rail is arranged inside the limiting activity groove. Limiting support columns are respectively vertically arranged on the base at both sides of the limiting activity groove. A limiting upward slide rail is connected between the two limiting support columns. The limiting upward slide rail and the limiting downward slide rail are symmetrically arranged up and down. And two limiting slide blocks are respectively symmetrically arranged on the limiting upward slide rail and the limiting downward slide rail. A fixed column is fixed in the middle of the limiting upward slide rail. Both sides of the fixed column are respectively connected to the limiting slide blocks through several limiting springs. A fixed column and limiting springs with the same structure and installation method as those on the limiting upward slide rail are arranged on the limiting downward slide rail. And a limiting shaft is connected between two opposite limiting slide blocks on the limiting upward slide rail and the limiting downward slide rail. A limiting roller is rotatably installed on the limiting shaft.

[0008] Preferably, a switch bracket is arranged on the side of the stamping die. A collision switch is arranged on the switch bracket. The collision switch is located directly above the stamping die. The collision switch is electrically controlled and connected to the feeding motor.

[0009] Preferably, the feeding motor is a stepping motor.

[0010] Preferably, anti-slip coatings are provided on the surfaces of the limiting roller, the driving roller shaft and the driven roller shaft.

[0011] After adopting the above structure, the beneficial effects of the present utility model are as follows:

[0012] The device is provided with a lateral limiting assembly, which automatically clamps the steel coil material towards the middle during the feeding process, thereby maintaining the feeding position and preventing skew and offset.

[0013] The device is provided with an automatic pressing and feeding assembly, and is automatically coordinated with the stamping die through the collision switch, so as to automatically feed during the opening of the die. The stepping motor can make the feeding length accurate, and the self-locking effect of the stepping motor after the feeding is completed can fix the steel coil material, thereby preventing its offset.

[0014] Both the lateral limiting assembly and the automatic pressing and feeding assembly of the device use springs, which can adapt to steel coils with different thicknesses and widths, and at the same time ensure the use effect, and have good practicability. Brief Description of the Drawings

[0015] Figure 1 is a front side schematic view of the overall structure of the present utility model;

[0016] Figure 2 is a rear side schematic view of the overall structure of the present utility model;

[0017] Figure 3 is the present utility model Figure 1 an enlarged view of part A;

[0018] Figure 4 is a structural sectional view of the lateral limiting assembly in the present utility model.

[0019] Description of the Reference Numerals:

[0020] 1. Base; 2. Stamping die; 3. Feeding support pillar; 4. Pressing movable groove; 5. Pressing slide rail; 6. Pressing sliding block; 7. Pressing spring; 8. Driven roller shaft; 9. Bearing; 10. Driving roller shaft; 11. Feeding motor; 12. Switch bracket; 13. Collision switch; 14. Limiting support pillar; 15. Upper limiting slide rail; 16. Limiting movable groove; 17. Lower limiting slide rail; 18. Limiting slider; 19. Limiting shaft; 20. Limiting roller; 21. Limiting spring; 22. Fixed column. Detailed Description of the Preferred Embodiment

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0022] Referring to Figure 1 - Figure 2 as shown, it includes a base 1, a stamping die 2 is provided on the base 1, a groove corresponding to the outer shape of the stamping die 2 is formed in the base 1, the stamping die 2 is disposed in the groove, and a plurality of groups of lateral limiting assemblies and an automatic pressing and feeding assembly are provided on the base 1 at a side position of the stamping die 2. The lateral limiting assemblies and the automatic pressing and feeding assembly are both disposed opposite to the stamping die 2.

[0023] Referring to Figure 1 - Figure 3As shown in the figure, the automatic pressing and feeding assembly includes feeding support columns 3 vertically arranged on both sides of the base 1. A driving roller shaft 10 is rotatably installed between the two feeding support columns 3 through a bearing 9. A feeding motor 11 is arranged outside one of the feeding support columns 3. The rotating shaft of the feeding motor 11 movably penetrates through the feeding support column 3 and is connected to the driving roller shaft 10. A pressing activity groove 4 is opened inside the feeding support column 3 at a position directly above the bearing 9. A pressing slide rail 5 is vertically arranged inside the pressing activity groove 4. A pressing slide block 6 is slidably installed on the pressing slide rail 5. A pressing spring 7 is connected between the upper side of the pressing slide block 6 and the top wall of the pressing activity groove 4. The pressing spring 7 is sleeved outside the pressing slide rail 5. A driven roller shaft 8 is rotatably installed between the two pressing slide blocks 6. The feeding motor 11 is a stepping motor.

[0024] As an optimized solution of the present utility model, by arranging the pressing spring 7, the pressing spring 7 continuously pushes the pressing slide block 6 downward along the pressing slide rail 5 by its elastic force, so that the driven roller shaft 8 is pressed against the driving roller shaft 10. When a steel coil enters, the pressing spring 7 is compressed, and the elastic force reversely pushes the driven roller shaft 8 to press the steel coil tightly. The feeding motor 11 can drive the driving roller shaft 10 to rotate and push the steel coil forward, thereby realizing feeding.

[0025] See Figure 1 - Figure 4 As shown in the figure, the lateral limiting assembly includes a limiting activity groove 16 opened in the base 1. A limiting lower slide rail 17 is arranged inside the limiting activity groove 16. Limiting support columns 14 are vertically arranged on the base 1 at both sides of the limiting activity groove 16. A limiting upper slide rail 15 is connected between the two limiting support columns 14. The limiting upper slide rail 15 and the limiting lower slide rail 17 are symmetrically arranged up and down. Two limiting sliders 18 are symmetrically arranged on the limiting upper slide rail 15 and the limiting lower slide rail 17 respectively. A fixing column 22 is fixed in the middle of the limiting upper slide rail 15. Both sides of the fixing column 22 are connected to the limiting sliders 18 through several limiting springs 21. The limiting lower slide rail 17 is provided with a fixing column 22 and limiting springs 21 with the same structure and installation method as those on the limiting upper slide rail 15. A limiting shaft 19 is connected between two opposite limiting sliders 18 on the limiting upper slide rail 15 and the limiting lower slide rail 17. A limiting roller 20 is rotatably installed on the limiting shaft 19.

[0026] As an optimized solution of the present utility model, through several limiting sliders 18 and limiting springs 21, by the elastic force of the limiting springs 21, when the steel coil passes through the inside of the two limiting rollers 20, the limiting springs 21 on both sides are evenly stretched, so as to keep the steel coil always on the central axis of the base 1 and prevent the angle from deviating. At the same time, the rolling friction between the limiting rollers 20 and the steel coil reduces the wear.

[0027] See Figure 1 - Figure 2As shown, a switch bracket 12 is provided on the side of the stamping die 2, and a collision switch 13 is provided on the switch bracket 12. The collision switch 13 is located directly above the stamping die 2, and the collision switch 13 is electrically connected to the feeding motor 11.

[0028] As an optimized solution of the present utility model, by setting the collision switch 13, when the stamping die 2 is lifted after stamping, it touches the collision switch 13, thereby sending a signal to the feeding motor 11 to perform the feeding operation.

[0029] See Figure 1 - Figure 3 As shown, anti-slip coatings are provided on the surfaces of the limiting rollers 20, the driving roller shaft 10, and the driven roller shaft 8.

[0030] As an optimized solution of the present utility model, the anti-slip coating enhances the friction force on the steel coil material to prevent slipping.

[0031] The usage process of the present utility model:

[0032] During use, first install the steel coil to be processed on the side of the base 1, then pass it through between the driving roller shaft 10 and the driven roller shaft 8, and then pass it through between the limiting rollers 20 on both sides, and then enter the stamping die 2. After installing the hydraulic drive device in place, the device can be powered on to start the stamping operation;

[0033] After one stamping is completed, the stamping die 2 separates. When it is lifted and touches the collision switch 13, the feeding motor 11 can be started to rotate according to the set rotation angle, and the steel coil material is fed into the stamping die 2 for further stamping. During the stamping process, the feeding motor 11 stops rotating. By using the self-locking characteristic of the stepping motor, the position of the steel coil material can be kept fixed to prevent deviation caused by lateral pressure during stamping.

[0034] It should be understood that the above specific embodiments of the present utility model are only used for exemplary illustration or explanation of the principle of the present utility model, and do not constitute a limitation to the present utility model. Therefore, any modifications, equivalent replacements, improvements, etc. made without departing from the spirit and scope of the present utility model shall be included within the protection scope of the present utility model. In addition, the appended claims of the present utility model are intended to cover all changes and modifications that fall within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A precision stamping die feeding mechanism, comprising a base (1), characterized in that: The base (1) is provided with a stamping die (2), the base (1) is provided with a groove corresponding to the shape of the stamping die (2), the stamping die (2) is arranged in the groove, and the base (1) at the side of the stamping die (2) is provided with an array of lateral limit assemblies and an automatic pressing and feeding assembly, and the lateral limit assemblies and the automatic pressing and feeding assembly are both arranged directly opposite to the stamping die (2).

2. A precision stamping die feeding mechanism according to claim 1, characterized in that: The automatic clamping feeding assembly comprises feed pillars (3) vertically arranged on both sides of a base (1), a driving roller (10) being rotatably mounted between the two feed pillars (3) via bearings (9), a feed motor (11) being arranged on the outer side of one of the feed pillars (3), a rotating shaft of the feed motor (11) movably passing through the feed pillar (3) and then connected to the driving roller (10); a clamping movable groove (4) is provided on the inner side of the feed pillar (3) just above the bearing (9), a clamping slide rail (5) is vertically arranged in the clamping movable groove (4), a clamping sliding block (6) is slidably mounted on the clamping slide rail (5), a clamping spring (7) is connected between the upper side surface of the clamping sliding block (6) and the top wall of the clamping movable groove (4), the clamping spring (7) is sleeved on the outer side of the clamping slide rail (5), and a driven roller (8) is rotatably mounted between the two clamping sliding blocks (6).

3. A precision stamping die feeding mechanism according to claim 2, characterized in that: The lateral limit assembly comprises a limit movable groove (16) provided in the base (1), a limit lower slide rail (17) being provided in the limit movable groove (16), limit pillars (14) being vertically provided on the base (1) at both sides of the limit movable groove (16), a limit upper slide rail (15) being connected between the two limit pillars (14), the limit upper slide rail (15) and the limit lower slide rail (17) being symmetrical in the upper and lower directions, and two limit sliders (18) being symmetrically provided on the limit upper slide rail (15) and the limit lower slide rail (17), respectively. A fixed column (22) is fixed in the middle of the upper slide rail (15), and both sides of the fixed column (22) are connected to the limit slider (18) through a plurality of limit springs (21), respectively; the limit lower slide rail (17) is provided with a fixed column (22) and a limit spring (21) having the same structure and installation method as those on the limit upper slide rail (15), and a limit shaft (19) is connected between two opposite limit sliders (18) on the limit upper slide rail (15) and the limit lower slide rail (17), and a limit roller (20) is rotatably installed on the limit shaft (19).

4. A precision stamping die feeding mechanism according to claim 3, characterized in that: A switch bracket (12) is provided on the side of the stamping die (2), and a collision switch (13) is provided on the switch bracket (12). The collision switch (13) is located directly above the stamping die (2), and the collision switch (13) is electrically connected to the feed motor (11).

5. A precision stamping die feeding mechanism according to claim 4, characterized in that: The feeding motor (11) is a stepping motor.

6. A precision stamping die feeding mechanism according to claim 5, characterized in that: The surfaces of the limiting roller (20), the driving roller shaft (10) and the driven roller shaft (8) are all provided with an anti-slip coating.

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