Stretching die punching and plate shearing integrated device

Abstract

The utility model discloses a stretching stamping die and plate shearing integrated device which comprises a stretching stamping die mechanism, the stretching stamping die mechanism comprises a stamping die upper die, a stamping die lower die, a stamping die base plate, a stamping die guide column and a rubber cushion block, the stamping die base plate is provided with a hollow part, and the stamping die guide column is arranged on the periphery of the stamping die upper die and the periphery of the stamping die lower die in a penetrating mode and extends upwards. The rubber cushion block is arranged on the upper surface of the upper stamping die; the plate shearing mechanism comprises an upper plate shearing blade, a lower plate shearing blade, a plate shearing guide column, a return spring and a base, the base comprises an upper plate and a lower plate, the plate shearing guide column and the return spring are vertically arranged between the upper plate and the lower plate, and the upper plate shearing blade and the lower plate shearing blade are arranged between the upper plate and the lower plate in a staggered mode; and the connecting mechanism comprises a connecting disc, one surface of the connecting disc is connected with the stamping die guide pillar, and the other surface of the connecting disc is connected with the hydraulic press. According to the utility model, rapid plate shearing and punching of a tensile sample can be realized, the plate shearing part and the punching part work independently, great convenience is brought to test sample preparation, and the scientific research test efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sample processing devices, in particular to a stretching die and shearing plate integrated device. Background Art

[0002] Tensile testing is the most important method for determining the mechanical properties of materials. It reveals properties such as elastic-plastic deformation, fracture strength, and elongation under load. Tensile testing often accounts for the largest proportion of testing during product development. The first step in obtaining tensile specimens is to appropriately cut the sheet material.

[0003] For example, Chinese patent application number CN202121563455.6 discloses a composite drawing die / punch die structure. This device, comprising an upper die, a lower die, and a die frame, aims to address the technical issues of existing stamping processes, which suffer from the single function of the die, resulting in numerous stamping steps, high production costs, and uncertain workpiece shape and precision. The device is complex, consisting of a hole-guiding section and a forming section, and is unable to perform shearing operations.

[0004] For example, a Chinese patent application number CN201621263157.4 discloses a punch press modified rapid shearing machine. The device uses a cylinder telescopic column to drive the first tool up and down, and the first tool slides in the sliding groove. The servo motor drives the feed shaft to rotate, and the electric telescopic rod drives the driven shaft up and down, so that the material sheet is pressed tightly against the feed shaft. The above structure can not only automatically and accurately cut the material sheet, but also realize automatic feeding. The device requires separate power and air supply, and there are problems with insufficient equipment durability and reliability. In addition, the device cannot complete the tensile specimen die.

[0005] Therefore, there is an urgent need to develop a device for quickly obtaining tensile specimens from plate and strip raw materials, and to quickly cut and punch the test materials.

[0006] In view of this, the existing technology should be improved to solve the above-mentioned technical problems existing in the existing technology. Utility Model Content

[0007] The main purpose of the utility model is to provide an integrated device of a tensile punching die and a shearing plate, which can realize rapid shearing and punching of tensile specimens. The shearing plate and the punching die work independently, which brings great convenience to test sample preparation and effectively improves the efficiency of scientific research experiments.

[0008] According to one aspect of the present invention, a drawing die and shear plate integrated device is provided, which comprises:

[0009] The stretching die mechanism includes an upper die, a lower die, a die pad, a die guide post and a rubber pad. The upper die is arranged above the lower die, the die pad is arranged below the lower die, the die pad has a hollow portion, the die guide post is arranged around the upper die and the lower die and extends upward, and the rubber pad is arranged on the upper surface of the upper die for pre-compression;

[0010] A shearing mechanism is provided below the stretching die mechanism, and includes an upper shearing blade, a lower shearing blade, a shearing guide post, a return spring, and a base. The base includes an upper plate and a lower plate. The shearing guide post and the return spring are vertically provided between the upper plate and the lower plate. The upper shearing blade and the lower shearing blade are staggered between the upper plate and the lower plate.

[0011] The connecting mechanism includes a connecting plate, one side of which is connected to the die guide column, and the other side of which is connected to the hydraulic press.

[0012] According to one embodiment of the present invention, it further comprises a punching die limiting block and a shearing plate limiting block, the punching die limiting block abuts between the connecting plate and the punching die upper die, and the shearing plate limiting block abuts between the upper plate and the lower plate.

[0013] According to one embodiment of the present invention, the height of the shear plate limit block is equal to the distance between the upper plate and the lower plate when the upper die and the lower die perform a stretching die operation.

[0014] According to one embodiment of the present invention, the height of the punch die limit block is equal to the distance between the connecting plate and the upper die of the punch die when the upper blade and the lower blade of the shear plate perform shearing operations.

[0015] According to one embodiment of the present invention, the stretching die mechanism further includes a top plate, which is arranged between the die guide column and the connecting plate.

[0016] According to one embodiment of the present invention, a support portion for increasing the bottom space is provided at the bottom of the die pad.

[0017] According to one embodiment of the present invention, a buffer layer is provided on the outer surfaces of the punch limit block and the shear plate limit block.

[0018] According to an embodiment of the present invention, the return springs are arranged on two opposite sides between the upper plate and the lower plate, with three return springs arranged on one side.

[0019] According to one embodiment of the present invention, the angle between the upper blade of the shearing plate and the lower blade of the shearing plate is adjustable.

[0020] According to an embodiment of the present invention, a fixing ring is provided on the punch limit block and the shear plate limit block, a connecting rope is provided on the fixing ring, and the other end of the connecting rope is connected to the integrated device.

[0021] The integrated tensile punch and shear plate device of the embodiment of the present invention can realize rapid shearing and punching of tensile specimens. The shear plate and the punch die work independently, which brings great convenience to test sample preparation and effectively improves the efficiency of scientific research experiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some implementation cases of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 A schematic diagram of an integrated drawing die and shear plate device according to an exemplary embodiment of the present invention is shown;

[0024] Figure 2 A perspective view of an integrated drawing die and shear plate device according to an exemplary embodiment of the present invention is shown;

[0025] Figure 3 A side view of an integrated drawing die and shear plate device according to an exemplary embodiment of the present invention is shown;

[0026] Figure 4 A cross-sectional view of an integrated drawing die and shear plate device according to an exemplary embodiment of the present invention is shown.

[0027] In the figure:

[0028] 1. Upper die of the die; 2. Lower die of the die; 3. Die pad; 4. Die guide pin; 5. Rubber pad; 6. Upper blade of the shear plate; 7. Lower blade of the shear plate; 8. Shear guide pin; 9. Return spring; 10. Upper plate; 11. Lower plate; 12. Connecting plate; 13. Top plate; 14. Support part. DETAILED DESCRIPTION

[0029] The detailed description of the following embodiments is used to illustrate the principles of the present invention, but cannot be used to limit the scope of the present invention. The present invention can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

[0030] The present invention provides these embodiments to make this disclosure thorough and complete, and to fully convey the scope of the present invention to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangements of parts and steps, material components, numerical expressions, and numerical values ​​described in these embodiments should be interpreted as merely exemplary and not as limiting.

[0031] It should be noted that, in the description of this utility model, unless otherwise specified, "plurality" means greater than or equal to two; terms such as "upper," "lower," "left," "right," "inner," and "outer" indicating directions or positional relationships are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on this utility model. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0032] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intervening device between the specific device and the first or second device.

[0033] All terms used in this utility model have the same meaning as those understood by those of ordinary skill in the art to which this disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, for example, should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an idealized or highly formal sense, unless explicitly defined herein.

[0034] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, these technologies, methods, and equipment should be considered part of the specification.

[0035] like Figure 1-4 As shown, the utility model provides a drawing die and shear plate integrated device, which includes:

[0036] The stretching die mechanism includes a die upper die 1, a die lower die 2, a die pad 3, a die guide column 4 and a rubber pad 5. The die upper die 1 is arranged above the die lower die 2, and the die pad 3 is arranged below the die lower die 2. The die pad 3 has a hollow part. After the punching is completed, the sample falls from the hollow part. The die guide column 4 is arranged around the die upper die 1 and the die lower die 2 and extends upward. The rubber pad 5 is arranged on the upper surface of the die upper die 1 for pre-tightening; the shearing mechanism is provided. Placed below the stretching die mechanism, the shearing mechanism includes an upper shearing blade 6, a lower shearing blade 7, a shearing guide post 8, a return spring 9 and a base, the base includes an upper plate 10 and a lower plate 11, the shearing guide post 8 and the return spring 9 are vertically arranged between the upper plate 10 and the lower plate 11, the shearing blade 6 and the shearing lower blade 7 are staggered between the upper plate 10 and the lower plate 11; and a connecting mechanism, the connecting mechanism includes a connecting disk 12, one side of the connecting disk 12 is connected to the die guide post 4, and the other side is connected to the hydraulic press.

[0037] The rubber pad 5 can be deformed when subjected to a certain pressure, but will not be permanently deformed or damaged due to excessive pressure, thereby achieving pre-compression of the sample and ensuring the safety and quality of the punching.

[0038] The upper die 1 of the punch is a convex die, and the lower die 2 of the punch is a concave die. The convex die and the concave die together constitute the main structure of the die and are used to punch the sample.

[0039] The lower blade 7 of the shearing plate is fixedly arranged between the upper plate 10 and the lower plate 11, and the upper blade 6 of the shearing plate is movably connected and can reciprocate under the action of the hydraulic press to complete the shearing.

[0040] Under the guidance of the die guide pillar 4 and the shear plate guide pillar 8, the movable areas of the upper and lower parts only move up and down in the vertical direction.

[0041] By replacing the connection plates 12 of different sizes and styles, the device can be adapted to various small hydraulic presses, making the device highly versatile.

[0042] In some embodiments, the device further includes a die stopper and a shear plate stopper. The die stopper abuts between the connecting plate 12 and the upper die 1, while the shear plate stopper abuts between the upper plate 10 and the lower plate 11. When performing a stretching die, the shear plate stopper is placed between the shear plate mechanisms to conveniently lock the movement of the shear plate mechanisms; when performing a shearing operation, the die stopper is placed between the stretching die mechanisms to conveniently lock the movement of the stretching die mechanisms. In other words, while one part is operating, the movement of another part is locked, thereby ensuring operational safety.

[0043] Preferably, the die limit block and the shear plate limit block are metal limit blocks, so as to avoid deformation under stress.

[0044] In some embodiments, the height of the shear plate limit block is equal to the distance between the upper plate 10 and the lower plate 11 when the upper die 1 and the lower die 2 perform a stretching die operation.

[0045] In some embodiments, the height of the die limit block is equal to the distance between the connecting plate 12 and the upper die 1 of the die when the upper blade 6 and the lower blade 7 of the shear plate perform shearing operations.

[0046] The design of the limit block can prevent the part where the limit block is located from accidentally hitting the closing process during the operation of another part, thereby protecting the mold and equipment from damage. When the limit block height is set reasonably, it can ensure that the equipment operates within a safe range.

[0047] In some embodiments, the stretch die mechanism further includes a top plate 13, which is disposed between the die guide pins 4 and the connecting plate 12. This top plate 13 is connected to the hydraulic press via the connecting plate 12, providing additional support and fixation for the entire die. This design helps enhance the overall rigidity of the die, reducing deformation caused by vibration or impact during the stamping process, thereby maintaining the accuracy and stability of the die.

[0048] In some embodiments, a support portion 14 is provided at the bottom of the die pad 3 to increase the bottom space. When the punched tensile specimen falls from the middle of the die pad 3, the support portion 14 is provided to elevate the die pad 3, and the specimen can be easily removed after the press stops moving.

[0049] In some embodiments, a buffer layer is provided on the outer surface of the die stopper and the shear plate stopper, which can ensure that the stopper has a stable position when in contact and reduce position deviation caused by impact and vibration.

[0050] In some embodiments, return springs 9 are positioned on opposite sides of the upper plate 10 and lower plate 11, with three springs positioned on each side. The primary function of the return springs 9 is to enable the upper blade 6 of the shear plate to quickly and smoothly return to its initial position after shearing, thereby enabling rapid separation from the lower blade 7. The rapid return of the return springs 9 shortens the separation time between the upper and lower blades, thereby improving the shearing machine's production efficiency.

[0051] The upper end of the return spring 9 is hinged or fixedly connected to the lower end of the upper cutter body, and the lower end is hinged or fixedly connected to the lower plate 11 or other fixed components. This installation method ensures that the return spring 9 can provide necessary elastic force when the upper blade moves.

[0052] During the shearing process, the upper blade 6 of the shear plate moves downward under the action of the drive mechanism, generating a shearing force with the lower blade 7, which cuts the sheet material. At this point, the return spring 9 is compressed, storing energy. After shearing is complete, the drive mechanism stops, and the return spring 9 begins to release its stored energy, pushing the shear plate blade 6 upward and rapidly returning to its initial position. During this process, the elastic force of the return spring 9 rapidly separates the upper blade 6 from the lower blade 7.

[0053] The symmetrically arranged return springs 9 ensure that the force applied in all directions is uniform during the return process, which helps to reduce vibration and impact caused by uneven force, thereby improving the stability and working accuracy of the equipment.

[0054] In some embodiments, the angle between the upper shear blade 6 and the lower shear blade 7 is adjustable. By adjusting the angle between the upper and lower blades, the shearing process can be adapted to the shearing needs of sheets of varying thickness, hardness, or material. This helps reduce shearing errors caused by material differences and improves processing accuracy.

[0055] In some embodiments, the die and shear plate limit blocks are provided with retaining rings, each provided with a connecting rope, the other end of which is connected to the integrated device. The retaining rings, through their design, securely secure the limit blocks to the device, preventing the limit blocks from loosening or falling off during use and resulting in loss.

[0056] A specific application of the present invention is:

[0057] After the device is installed, the shearing operation is first performed. The die limit block is used to lock the movement of the die part. The stroke of the press is set, the press is started, and the foot pedal mode or automatic mode is selected. The shearing operation is performed according to the cutting line drawn on the sheet. The return spring 9 is used to quickly separate the upper and lower blades to improve the shearing efficiency. When it is necessary to punch a tensile specimen, the shearing limit block is used to lock the movement of the shear part, the stroke of the press is set, the press is started, and the specimen is placed in the gap between the upper die 1 and the lower die 2. The foot pedal mode or automatic mode is selected for punching. The rubber pad 5 can pre-tighten the specimen to ensure the safety and quality of the punching. The punched tensile specimen falls from the middle of the die pad 3 and can be easily removed after the press stops moving.

[0058] The utility model has at least the following advantages:

[0059] (1) By matching different connection plates, it can be adapted to different models of small hydraulic presses.

[0060] (2) The die guide pins and shear plate guide pins ensure that the movable parts only move vertically up and down. When a die or shear plate is needed, just place a metal limit block of appropriate size between the shear plate or the die guide pins to easily lock the movement of the part.

[0061] (3) The die pad ensures that the punched tensile specimen has good contactability.

[0062] (4) The upper die and the lower die can be flexibly customized according to the test requirements, and can be used to punch tensile specimens of various sizes.

[0063] (5) When the hydraulic cylinder of the press extends downward, the elasticity of the rubber pad can be used to pre-tighten the sample on the lower die part to ensure the quality and safety of the die.

[0064] (6) After the device is installed, it can realize rapid shearing and punching of tensile specimens. The shearing and punching dies work independently, which brings great convenience to the test sample preparation and effectively improves the efficiency of scientific research experiments.

[0065] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the disclosure of the embodiments of the present invention (including the claims) is limited to these examples. Based on the principles of the embodiments of the present invention, the technical features of the above embodiments or different embodiments may be combined, and there are many other variations of the different aspects of the above embodiments of the present invention, which are not provided in detail for the sake of simplicity. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present invention shall be included in the scope of protection of the embodiments of the present invention.

Claims

1. A drawing die and shear plate integrated device, characterized in that, include: A stretching die mechanism, comprising an upper die, a lower die, a die pad, a die guide post, and a rubber pad. The upper die is arranged above the lower die, the die pad is arranged below the lower die, the die pad has a hollow portion, the die guide post is passed through the four sides of the upper die and the lower die and extends upward, and the rubber pad is arranged on the upper surface of the upper die for pre-compression. A shearing mechanism is provided below the stretching die mechanism, comprising an upper shearing blade, a lower shearing blade, a shearing guide post, a return spring, and a base, wherein the base comprises an upper plate and a lower plate, the shearing guide post and the return spring are vertically provided between the upper plate and the lower plate, and the upper shearing blade and the lower shearing blade are staggered between the upper plate and the lower plate; as well as The connecting mechanism includes a connecting disk, one side of which is connected to the die guide column, and the other side of which is connected to the hydraulic press.

2. The integrated drawing die and shear plate device according to claim 1, characterized in that: It also includes a punching die limiting block and a shearing plate limiting block, wherein the punching die limiting block abuts between the connecting plate and the punching die upper die, and the shearing plate limiting block abuts between the upper plate and the lower plate.

3. The integrated drawing die and shearing plate device according to claim 2, characterized in that: The height of the shear plate limit block is equal to the distance between the upper plate and the lower plate when the upper die and the lower die perform a stretching die operation.

4. The integrated drawing die and shear plate device according to claim 2, characterized in that: The height of the punching die limiting block is equal to the distance between the connecting plate and the punching die upper die when the upper blade of the shearing plate and the lower blade of the shearing plate perform shearing operations.

5. The integrated drawing die and shearing plate device according to claim 1, characterized in that: The stretching die mechanism further includes a top plate, which is arranged between the die guide column and the connecting plate.

6. The integrated drawing die and shear plate device according to claim 1, characterized in that: The bottom of the die pad is provided with a supporting portion for increasing the bottom space.

7. The integrated drawing die and shear plate device according to claim 1, characterized in that: The outer surfaces of the punching die limiting block and the shear plate limiting block are provided with a buffer layer.

8. The integrated drawing die and shear plate device according to claim 1, characterized in that: The return springs are arranged on two opposite sides between the upper plate and the lower plate, with three return springs arranged on one side.

9. The integrated drawing die and shear plate device according to claim 1, characterized in that: The angle between the upper blade of the shearing plate and the lower blade of the shearing plate is adjustable.

10. The integrated drawing die and shear plate device according to claim 1, characterized in that: The punching die limiting block and the shear plate limiting block are provided with fixing rings, the fixing rings are provided with connecting ropes, and the other ends of the connecting ropes are connected to the integrated device.

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