CN112453212A

CN112453212A - High-strength steel stamping die

Info

Publication number: CN112453212A
Application number: CN201910845926.3A
Authority: CN
Inventors: 王小培
Original assignee: Wuxi Zhichengsheng Precision Machinery Technology Co ltd
Current assignee: Wuxi Zhichengsheng Precision Machinery Technology Co ltd
Priority date: 2019-09-09
Filing date: 2019-09-09
Publication date: 2021-03-09

Abstract

The invention discloses a high-strength steel stamping die, and particularly relates to the field of mechanical equipment manufacturing. According to the invention, the elastic pressing clamp is used, so that the stamping part can be effectively and firmly fixed on the fixed die in the descending process of the movable die, the workpiece is prevented from being displaced due to vibration generated by the operation of a machine, the movable die slowly exits from the surface of the workpiece by virtue of the pressure of the movable die when approaching the stamping part, manual operation is not required, and the problem of the descending of the yield of the stamping part due to displacement is solved.

Description

High-strength steel stamping die

Technical Field

The invention relates to the technical field of mechanical equipment manufacturing, in particular to a high-strength steel stamping die.

Background

The existing stamping die is used in the machining industry, is generally suitable for single blanking or single punching of channel steel, and blanking punching can not be completed simultaneously, and the main reason is that the volume of I-shaped steel is large, and blanking and punching are completed by completely different processes, for example: the blanking and punching of the I-shaped steel are completed by two completely different processes, so that much time is wasted, the working efficiency is low, and the labor intensity is high.

In order to solve the problems, the invention discloses a high-strength steel stamping die in patent application publication No. CN105344835A, and the invention modifies an I-shaped die or an H-shaped die of the original I-steel on the basis of the existing stamping die, and the modified stamping die can not only simultaneously complete blanking and punching, but also simultaneously complete I-steel with different lengths and different hole distances, so that the diversified stamping using requirements of processing the whole I-steel can be met, the blanking and punching can be completed by one-time clamping and fixing, the working efficiency is greatly improved, the manual labor is reduced, and the high-strength steel stamping die is suitable for mass production.

However, the technical scheme still has more defects in actual application;

firstly, because the punching grinding tool is not provided with a fixing device, in actual use, when a punching machine moves to drive a movable die to press downwards, the punching machine vibrates to a certain extent due to the operation of a punching machine, so that a punching part generates deflection on the punching die;

two, because this punching press grinding apparatus does not set up automatic demoulding device, generally need the manual work to take out after the punching press is accomplished, in the in-service use, often can meet the condition that the stamping workpiece card is difficult to take out in the mould, need artifical perk out, the manual work makes the flower die surface easily when carrying out the forced demoulding for the mould is impaired, therefore life greatly reduced.

Therefore, it is highly desirable to provide a high strength steel stamping die which can rapidly release a die and conveniently fix a stamping part to improve working efficiency.

Disclosure of Invention

In order to overcome the defects in the prior art, the embodiment of the invention provides the high-strength steel stamping die, the elastic pressing clamp is used, the stamping part can be effectively and firmly fixed on the fixed die in the descending process of the movable die, the workpiece is prevented from being displaced due to vibration generated by machine operation, the movable die slowly withdraws from the surface of the workpiece by virtue of the pressure of the movable die when approaching the stamping part, manual operation is not needed, and the problem of reduction of the yield of the stamping part due to displacement is solved; in addition, the small elastic ejector pins are arranged at the non-characteristic points of the fixed die and the movable die, so that the stamping parts and stamping waste materials can be automatically ejected out of the die after stamping is finished, the problem that the stamping parts are clamped in the grooves of the grinding tool and are difficult to take out is solved, the stamping parts can be rapidly demoulded, the manual demoulding time is greatly saved, the working efficiency of stamping production is improved, and the problems in the background art are solved.

In order to achieve the purpose, the invention provides the following technical scheme: a high-strength steel stamping die comprises a fixed die and a movable die which are used for stamping, wherein a first punch is fixedly mounted on the surface of the fixed die, a second clamping groove is formed in the center of the fixed die, the first punch is positioned on two sides of the second clamping groove, elastic pressing clamps are slidably mounted at two ends of the fixed die, first clamping grooves are formed in two ends of the bottom surface of the movable die and correspond to the first punch, the first clamping grooves are matched with the first punch, a second punch is fixedly mounted on the bottom surface of the movable die and correspond to the second clamping groove, a plurality of round holes are formed in the opposite surfaces of the fixed die and the movable die, ejector pins are movably mounted in the round holes, and springs are arranged in the hollow ejector pins;

the elastic pressing clamp comprises a fixed clamp, an elastic piece, a manual pressing rod and a sliding block, wherein one end of the sliding block is slidably mounted at the end of the fixed die, the other end of the sliding block is fixedly connected with the elastic piece, the other end of the elastic piece is fixedly connected with the fixed clamp, and the manual pressing rod is fixedly mounted at the tail of the fixed clamp.

In a preferred embodiment, the length, width and height of the first punch are slightly less than the length, width and height of the first clamping groove, the second clamping groove is matched with the shape and size of the second punch, and the second clamping groove is slightly larger than the second punch.

In a preferred embodiment, the height of the thimble is equal to the depth of the groove formed on the surface of the fixed die and the movable die, one end of the spring inside the thimble extends out, and the height of the extending section is less than that of the thimble.

In a preferred embodiment, the cross section of the second clamping groove is T-shaped, and the first punches at two ends of the fixed die are the same in size.

In a preferred embodiment, the ejector pins are located at the non-characteristic points of the fixed mold and the movable mold.

In a preferred embodiment, the first punch and the second punch are made of high-strength carbon steel, the second punch comprises a punch connecting piece and a punch, and the punch is fixed on the bottom surface of the movable die by the punch connecting piece.

In a preferred embodiment, the contact surface of the fixed clamp and the movable die is provided with an inclined surface, and the contact surface of the fixed clamp and the punching workpiece is provided with a non-slip pad.

The invention has the technical effects and advantages that:

1. according to the invention, by using the elastic pressing clamp, the stamping part can be effectively and firmly fixed on the fixed die in the descending process of the movable die, the workpiece is prevented from displacing due to the vibration generated by the operation of a machine, the movable die slowly withdraws from the surface of the workpiece by the pressure of the movable die when approaching the stamping part, manual operation is not needed, and the problem of the descending of the yield of the stamping part due to displacement is solved;

2. according to the invention, the small elastic thimble is arranged at the non-characteristic point of the fixed die and the movable die, so that the stamping part and the stamping waste can be automatically ejected out of the die after stamping is finished, the problem that the stamping part is clamped in the groove of the grinding tool and is difficult to take out is solved, the stamping part can be rapidly demoulded, the manual demoulding time is greatly saved, and the working efficiency of stamping production is improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the elastic press-clamping structure of the present invention.

Fig. 3 is a schematic view of the structure of the thimble according to the present invention.

FIG. 4 is a schematic structural diagram of the moving mold of the present invention during operation.

FIG. 5 is a diagram illustrating a structure of a comparison file according to the present invention.

The reference signs are: 1. fixing a mold; 2. a first punch; 3. a thimble; 4. a second card slot; 5. moving the mold; 6. A second punch; 7. a first card slot; 8. elastic pressing and clamping; 801. a fixing clip; 802. an elastic member; 803. a manual compression bar; 804. a slide block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The high-strength steel stamping die shown in the attached figures 1 to 4 comprises a fixed die 1 and a movable die 5 which are used for stamping, wherein a first punch 2 is fixedly arranged on the surface of the fixed die 1, a second clamping groove 4 is formed in the center of the fixed die 1, the first punch 2 is positioned on two sides of the second clamping groove 4, elastic pressing clamps 8 are slidably arranged at two ends of the fixed die 1, a first clamping groove 7 is formed in the position, corresponding to the first punch 2, of two ends of the bottom surface of the movable die 5, the first clamping groove 7 is matched with the first punch 2, a second punch 6 is fixedly arranged in the position, corresponding to the second clamping groove 4, of the bottom surface of the movable die 5, a plurality of round holes are formed in the opposite surfaces of the fixed die 1 and the movable die 5, ejector pins 3 are movably;

as shown in fig. 2, the elastic pressing clamp 8 includes a fixing clamp 801, an elastic member 802, a manual pressing rod 803, and a sliding block 804, one end of the sliding block 804 is slidably mounted at the end of the fixed mold 1, the other end of the sliding block 804 is fixedly connected with the elastic member 802, the other end of the elastic member 802 is fixedly connected with the fixing clamp 801, and the manual pressing rod 803 is fixedly mounted at the tail of the fixing clamp 801.

The implementation mode is specifically as follows: by using the elastic pressing clamp, the stamping part can be effectively and firmly fixed on the fixed die in the descending process of the movable die, the workpiece is prevented from being displaced due to vibration generated by machine operation, the workpiece slowly exits from the surface of the workpiece by the pressure of the movable die when the movable die approaches the stamping part, manual operation is not needed, and the problem of the descending of the yield of the stamping part due to displacement is solved; in addition, the small elastic ejector pins are arranged at the non-characteristic points of the fixed die and the movable die, so that the stamping part and stamping waste can be automatically ejected out of the die after stamping is finished, the problem that the stamping part is clamped in the groove of the grinding tool and is difficult to take out is solved, the stamping part can be rapidly demoulded, the manual demoulding time is greatly saved, and the working efficiency of stamping production is improved.

The length, width and height of the first punch 2 are slightly smaller than the length, width and height of the first clamping groove 7, the second clamping groove 4 is matched with the second punch 6 in shape and size, and the second clamping groove 4 is slightly larger than the second punch 6, so that the punches can smoothly enter the grooves to smoothly punch.

The height of the ejector pin 3 is equal to the depth of the grooves formed in the surfaces of the fixed die 1 and the movable die 5, one end of a spring inside the ejector pin 3 extends out, and the height of the extending section is smaller than that of the ejector pin 3, so that the phenomenon that the surface of a workpiece is marked with the grooves of the ejector pin in a residual mode is avoided, and the workpiece is prevented from being damaged by the ejector pin.

The cross section of the second clamping groove 4 is T-shaped, the specifications of the first punch heads 2 at two ends of the fixed die 1 are the same, and the punching accuracy is guaranteed.

The ejector pins 3 are located at the non-characteristic points of the fixed die 1 and the movable die 5, and the ejector pins 3 are located at the non-characteristic points of the fixed die 1 and the movable die 5, so that the ejector pins are not influenced in arrangement.

The first punch 2 and the second punch 6 are made of high-strength carbon steel, the second punch 6 comprises a punch connecting piece and punches, the punches are fixed on the bottom surface of the movable die 5 through the punch connecting piece, and the rigidity of the grinding tool is improved so that the punches are not easy to break.

The contact surface of the fixed clamp 801 and the movable mold 5 is an inclined surface, the contact surface of the fixed clamp 801 and the stamping workpiece is provided with a non-slip mat, and when the movable mold approaches the stamping workpiece, the movable mold slowly withdraws from the surface of the workpiece by the pressure of the movable mold.

The working principle of the invention is as follows:

firstly, all punches are fixedly installed on the opposite surfaces of a fixed die 1 and a movable die 5, a workpiece is placed on the surface of the fixed die, a sliding block 804 is used for adjusting the height of a fixed clamp 801 according to the height of the workpiece, the front end of the fixed clamp 801 is tilted by manually pressing a manual pressure lever 803, the manual pressure lever 803 is put down after the position of the workpiece is adjusted, the manual pressure lever 803 is used for firmly pressing the workpiece to prevent the workpiece from displacing, the fixed clamp 801 slowly withdraws from the surface of the workpiece by the pressure of the movable die when the movable die approaches a stamping part during stamping operation, after the stamping is completed, an ejector pin can jack the workpiece to be demoulded in the lifting process of the movable die 5, meanwhile, the fixed clamp 801 is reset by the acting force.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;

and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.

Claims

1. The utility model provides a high strength steel stamping die, includes cover half (1) and movable mould (5) with the punching press, its characterized in that: the fixed-surface punching die is characterized in that a first punch (2) is fixedly installed on the surface of the fixed die (1), a second clamping groove (4) is formed in the center of the fixed die (1), the first punch (2) is located on two sides of the second clamping groove (4), elastic pressing clamps (8) are installed at two ends of the fixed die (1) in a sliding mode, a first clamping groove (7) is formed in the position, corresponding to the first punch (2), of two ends of the bottom surface of the movable die (5), the first clamping groove (7) is matched with the first punch (2), a second punch (6) is fixedly installed at the position, corresponding to the second clamping groove (4), of the bottom surface of the movable die (5), a plurality of round holes are formed in the opposite surface of the fixed die (1) and the movable die (5), ejector pins (3) are movably installed in the round holes, and springs are arranged;

elasticity is pressed and is pressed clamp (8), including fixation clamp (801), elastic component (802), manual depression bar (803), slider (804) one end slidable mounting is at the tip of cover half (1), the other end and elastic component (802) fixed connection of slider (804), the other end and fixation clamp (801) fixed connection of elastic component (802), manual depression bar (803) fixed mounting is at the afterbody of fixation clamp (801).

2. The high strength steel stamping die of claim 1, wherein: the length, width and height of the first punch (2) are slightly smaller than the length, width and height of the first clamping groove (7), the second clamping groove (4) is matched with the second punch (6) in shape and size, and the second clamping groove (4) is slightly larger than the second punch (6).

3. The high strength steel stamping die of claim 1, wherein: the height of the ejector pin (3) is equal to the depth of the grooves formed in the surfaces of the fixed die (1) and the movable die (5), one end of the spring inside the ejector pin (3) extends out, and the height of the extending section is smaller than that of the ejector pin (3).

4. The high strength steel stamping die of claim 1, wherein: the cross section of the second clamping groove (4) is T-shaped, and the specifications of the first punch heads (2) at the two ends of the fixed die (1) are the same.

5. The high strength steel stamping die of claim 1, wherein: a plurality of grooves formed in the surfaces of the fixed die (1) and the movable die (5) of the ejector pin (3) are located at non-characteristic points, and the ejector pin (3) is located at the non-characteristic points of the fixed die (1) and the movable die (5).

6. The high strength steel stamping die of claim 1, wherein: the first punch (2) and the second punch (6) are made of high-strength carbon steel, the second punch (6) comprises a punch connecting piece and punches, and the punches are fixed on the bottom surface of the movable die (5) through the punch connecting piece.

7. The high strength steel stamping die of claim 1, wherein: the contact surface of the fixed clamp (801) and the movable die (5) is an inclined surface, and the contact surface of the fixed clamp (801) and the stamping workpiece is provided with an anti-skid pad.