CN216175913U - Fastener stamping die capable of finely adjusting die punch - Google Patents

Abstract

The utility model relates to the technical field of stamping dies, and discloses a fastener stamping die capable of finely adjusting a die punch, which comprises: the stamping die comprises a base, wherein a lower die is fixed at the upper end of the base, a stamping groove is formed in the surface of one end, away from the base, of the lower die, limiting rings are welded at four corners of the surface of one end, close to the lower die, of the base, a gasket is laid on the lower surface of the inner portion of each limiting ring, and an upper die is arranged on one side, away from the base, of the lower die; the top plate is fixed to the top end of the upper die, a reinforcing plate is embedded in the upper surface of the top plate, and spring columns are fixed to four corners of the lower surface of the top plate. This fastener stamping die of mould drift can finely tune is provided with the adjusting screw post, and it twists through the fore-set and changes, makes the length of adjusting screw post in the drift adjust, so the interval of fore-set and drift can finely tune according to the number of turns that the adjusting screw post was unscrewed, is convenient for adjust the thickness of the fastener that the cooperation will be punched.

Description

A fastener stamping die capable of fine-tuning the die punch

technical field

The utility model relates to the technical field of stamping dies, in particular to a stamping die for fasteners capable of fine-tuning the die punch.

Background technique

Stamping die is a special process equipment for processing materials (metal or non-metal) into parts (or semi-finished products) in cold stamping. Fasteners are a type of mechanical parts that are used for fastening and connections and are widely used. They are characterized by a wide variety of specifications, different performance uses, and a high degree of standardization, serialization, and generalization. Therefore, it is more common to use various types of stamping dies for rapid mass production in the production of fasteners, and in specific production, it is often fine-tuned according to the size of the die punch to make the produced fasteners more suitable for construction. need.

Fastener stamping dies with fine-tuning die punches on the market are generally of fixed design in use, and the punch and die are rigidly connected. Additional adjustments cannot be made according to the thickness of the stamped fasteners, making It is difficult for factories to adjust the die and punching machine when punching fasteners of the same shape and different thicknesses. For this reason, we propose a fastener punching die that can fine-tune the die punch.

Utility model content

The purpose of this utility model is to provide a fastener stamping die capable of fine-tuning the die punch, in order to solve the problem of the above-mentioned background technology proposed in the market for the fastener stamping die with fine-tuning die punch, the punch is generally in use. Fixed design, the punch and the die are rigidly connected, and additional adjustments cannot be made according to the thickness of the stamped fasteners, making it more troublesome for the factory to adjust the die and punching machine when punching fasteners of the same shape and different thicknesses The problem.

In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fastener stamping die capable of fine-tuning the die punch, comprising:

The base, the upper end of the base is fixed with a lower die, the surface of one end of the lower die away from the base is provided with a stamping groove, the end surface of the base close to the lower die is welded with a limit ring at four corners, and the inner lower surface of the limit ring is A gasket is laid, and the side of the lower mold away from the base is provided with an upper mold;

The top plate is fixed on the top end of the upper mold, the upper surface of the top plate is embedded with a reinforcing plate, the four corners of the lower surface of the top plate are fixed with spring columns, and the middle of the top plate and the reinforcing plate is penetrated with punches, so An adjusting stud is embedded in the outer wall of one end of the punch away from the top plate, and a top post is fixed on the other end of the adjusting stud.

Preferably, the structure of the base is an I-shaped structure, the lower end surface of the upper mold is closely fitted with the upper end surface of the lower mold, and the outer shape of the upper mold and the lower mold are consistent.

Preferably, an elastic expansion and contraction structure is formed between the spring column and the limit ring, and the spring column penetrates one side outer wall of the limit ring.

Preferably, a telescopic structure is formed between the top column and the punch by adjusting the stud, and the position of the central axis of the top column and the punch is coincident.

Preferably, the upper mold is also provided with:

The slot is opened at the connection between the upper die and the top plate, and the punch penetrates through the slot, the outer wall of the punch located in the slot is welded with a baffle plate, and the lower end surface of the baffle plate is fixed with a baffle plate. a buffer spring, and the other end of the buffer spring is connected to the inner lower surface of the slot.

Preferably, an elastic telescopic structure is formed between the punch head and the upper die through the baffle plate, the buffer spring, and the baffle plate is symmetrically arranged with respect to the central axis of the punch head.

Preferably, the lower surface of the punch is in close contact with the inner lower surface of the slot, and the upper die and the punch are perpendicular to each other.

Compared with the prior art, the beneficial effects of the present utility model are:

1. The stamping die for the fine-tuning die punch is provided with an adjusting stud, which is rotated through the top post, so that the length of the adjusting stud in the punch can be adjusted, so the distance between the top post and the punch can be adjusted. It can be fine-tuned according to the number of turns of the adjusting stud, which is convenient to adjust the thickness of the fastener to be punched.

2. The lower end surface of the upper die and the upper end surface of the lower die are closely fitted, and the upper die and the lower die are matched in shape; The shape structure of the lower surface of the die is used to stamp fasteners with different shapes and structures; the spring column set extends into the limit ring when the stamping die is stamping, and the vertical structure can prevent the upper die and the lower die from appearing between the die. Position offset, reducing the occurrence of faults or uneven thickness of stamped fasteners.

3. The set punch can better transmit the pressure transmitted by the punching machine to the upper die through the slotted structure, so that the upper die can better perform work on the punching groove; when the set punch works downward, it first presses down The buffer spring is elastically deformed, and the force change is a curve change when this part of the force does work, so that the force change of the fastener is more uniform during forming, and it is not easy to cause metal tearing and fracture.

Description of drawings

Fig. 1 is the front view three-dimensional structure schematic diagram of the stamping state of the utility model;

Fig. 2 is a three-dimensional schematic diagram of the disassembled state of the utility model;

FIG. 3 is a schematic view of the three-dimensional structure of the upper mold and the top plate of the present utility model;

FIG. 4 is a schematic diagram of a partially sectional three-dimensional structure of the punch of the present invention.

In the picture: 1. Base; 2. Lower die; 3. Limit ring; 4. Upper die; 5. Top plate; 6. Spring column; 7. Punch; 8. Adjusting stud; 9. Top column; 10. Washer; 11. Stamping groove; 12. Slotting; 13. Baffle plate; 14. Buffer spring; 15. Reinforcing plate.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to 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 the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

1-4, the present utility model provides a technical solution: a stamping die for fasteners capable of fine-tuning the die punch, comprising: a base 1, the structure of the base 1 is an I-shaped structure, which can better withstand The pressure received during stamping improves the structural strength; the upper end of the base 1 is fixed with a lower die 2, and a stamping groove 11 is opened on the surface of the end of the lower die 2 away from the base 1. During stamping, the inside of the stamping groove 11 and the lower surface of the upper die 4 are dedusted Treatment to reduce possible potholes on the surface of the fastener; a limit ring 3 is welded at four corners on one end surface of the base 1 close to the lower mold 2, the inner lower surface of the limit ring 3 is covered with a gasket 10, and the lower mold 2 is away from the base 1. The side is provided with an upper die 4; the lower end surface of the upper die 4 is closely fitted with the upper end surface of the lower die 2, and the upper die 4 is consistent with the shape structure of the lower die 2; the upper die 4 and the lower die 2 provided can be According to the shape structure of the punching groove 11 and the shape structure of the lower surface of the upper die 4, fasteners with different shapes and structures are punched accordingly; the top plate 5 is fixed on the top of the upper die 4, and the upper surface of the top plate 5 is embedded with reinforcement The plate 15 and the reinforcing plate 15 are used to strengthen the structure of the top plate 5 to make it more resistant to pressure and prolong the service life of the mold. The four corners of the lower surface of the top plate 5 are fixed with spring columns 6; the spring columns 6 and the limit ring An elastic expansion and contraction structure is formed between 3, and the spring column 6 penetrates one side of the outer wall of the limit ring 3; the set spring column 6 extends into the limit ring 3 when the stamping die is punching, and the vertical structure can prevent the upper There is a positional deviation between the die 4 and the lower die 2, which reduces the occurrence of faults or uneven thickness of the stamped fasteners.

Please refer to FIGS. 3-4 , a stamping die for fasteners capable of fine-tuning the die punch, including: a punch 7 penetrates through the middle of the top plate 5 and the reinforcing plate 15, and the upper die 4 and the punch 7 are perpendicular to each other; The outer wall of one end of the punch 7 away from the top plate 5 is embedded with an adjusting stud 8, and the other end of the adjusting stud 8 is fixed with a top post 9, and the top post 9 coincides with the central axis of the punch 7, and the top post 9 passes through the adjusting screw. A telescopic structure is formed between the column 8 and the punch 7; the set adjusting stud 8 is screwed through the top column 9, so that the length of the adjusting stud 8 in the punch 7 can be adjusted, so the top column 9 and the punch 7 The spacing can be fine-tuned according to the number of turns of the adjusting stud 8, which is convenient for adjusting the thickness of the fastener to be punched; the slot 12 is opened at the connection between the upper die 4 and the top plate 5, and the punch 7 penetrates Inside the slot 12; the lower surface of the punch 7 is in close contact with the inner lower surface of the slot 12, and the lower part of the punch 7 is embedded in the slot 12, so that the punch 7 can be better The pressure transmitted by the punching machine is transmitted to the upper die 4 through the slot 12 structure, so that the upper die 4 can better perform work on the punching slot 11; the outer wall of the punch 7 located inside the slot 12 is welded with a baffle 13, and the stop The plate 13 is symmetrically arranged with respect to the central axis of the punch 7, a buffer spring 14 is fixed on the lower end surface of the baffle 13, and the punch 7 forms an elastic expansion and contraction structure through the baffle 13 and the buffer spring 14 and the upper die 4; When the head 7 is working downward, it first presses down to elastically deform the buffer spring 14. When this part of the force is working, the force change is a curve change, so that the force change of the fastener is more uniform during forming, and it is not easy to produce metal tearing and fault. phenomenon; and the other end of the buffer spring 14 is connected to the inner lower surface of the slot 12 .

Working principle: For this type of fastener stamping die that can fine-tune the die punch, firstly fix the base 1 of the stamping die on the punching machine table, so that the base 1 and the lower die 2 with the upper end fixed at the predetermined position are stable. Place it without shaking, and then screw the adjusting stud 8 in the punch 7 through the top column 9 to adjust the length of the adjusting stud 8 extending out of the punch 7, so as to adjust according to the thickness of the fastener to be stamped and formed. The stroke of the punch 7 is pressed down, and then the top column 9 is fixed on the punching end of the punching machine. The lower end of the punch 7 is embedded in the slot 12 opened at the connection between the upper die 4 and the top plate 5, and the punch 7 is located in the slot 12. The outer wall of the inner part is symmetrically fixed with a baffle 13, the lower end of the baffle 13 is fixed with a buffer spring 14, and the lower end of the buffer spring 14 is connected to the inner lower surface of the slot 12, which makes the punch 7 work downward first. Doing work on the buffer spring 14 is affected by the elastic deformation of the buffer spring 14, so that the size of the downward pressure in the initial stage of stamping changes in a curve, reducing the possibility of rigid fracture of the stamped fasteners in the initial deformation stage, and finally the lower die 2 passes through the stamping process. Under the pressure of the groove 11 and the lower end of the upper die 4 matching the punching structure, the fasteners are formed in the punching groove 11, and the spring columns 6 at the four corners of the lower end of the top plate 5 penetrate into the limit ring 3 at the upper end of the base 1 during the punching process. In order to prevent the upper and lower molds 2 from being offset during the stamping process, and the buffering effect of the spring column 6 and the washer 10 in the limit ring 3 during the stamping process, the stamping process is more stable and smooth, the reinforcement plate 15 embedded in the upper end of the top plate 5 is used In order to improve the structural strength of the top plate 5, it can make it more resistant to impact and prolong the service life of the mold.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (7)

1. a fastener stamping die capable of fine-tuning a die punch, is characterized in that, comprising: A base (1), a lower die (2) is fixed on the upper end of the base (1), a stamping groove (11) is formed on the surface of one end of the lower die (2) away from the base (1), and the base (1) A limit ring (3) is welded at four corners on one end surface of the lower mold (2), a gasket (10) is laid on the inner lower surface of the limit ring (3), and the lower mold (2) is far from the bottom of the base (1). One side is provided with an upper mold (4); The top plate (5) is fixed on the top of the upper mold (4), the upper surface of the top plate (5) is embedded with a reinforcing plate (15), and the four corners of the lower surface of the top plate (5) are fixed with spring columns (6), a punch (7) runs through the middle of the top plate (5) and the reinforcing plate (15), and an adjustment stud (8) is embedded in the outer wall of one end of the punch (7) away from the top plate (5). , the other end of the adjusting stud (8) is fixed with a top post (9). 2. A fastener stamping die capable of fine-tuning a die punch according to claim 1, characterized in that: the structure of the base (1) is an I-shaped structure, and the lower end of the upper die (4) The surface is closely attached to the upper end surface of the lower mold (2), and the upper mold (4) and the lower mold (2) are in conformity with the shape and structure. 3. A fastener stamping die capable of fine-tuning the die punch according to claim 1, characterized in that: an elastic expansion and contraction structure is formed between the spring column (6) and the limit ring (3), and the spring The column (6) penetrates one side outer wall of the limiting ring (3). 4. A fastener stamping die capable of fine-tuning the die punch according to claim 1, characterized in that: the top post (9) is formed between the adjusting stud (8) and the punch (7) Telescopic structure, and the top column (9) coincides with the central axis of the punch (7). 5. A fastener stamping die capable of fine-tuning the die punch according to claim 1, characterized in that: the upper die (4) is further provided with: A slot (12) is opened at the junction of the upper die (4) and the top plate (5), and a punch (7) penetrates through the interior of the slot (12), and the punch (7) is located at the opening. A baffle plate (13) is welded on the inner outer wall of the groove (12), a buffer spring (14) is fixed on the lower end surface of the baffle plate (13), and the other end of the buffer spring (14) is connected to the slot (12) ) of the inner lower surface. 6. A fastener stamping die capable of fine-tuning the die punch according to claim 5, characterized in that: the punch (7) communicates with the upper die ( 4) An elastic telescopic structure is formed between them, and the baffle plate (13) is symmetrically arranged with respect to the central axis of the punch (7). 7. A fastener stamping die capable of fine-tuning the die punch according to claim 5, wherein the lower surface of the punch (7) and the inner lower surface of the slot (12) are closely spaced fit, and the upper die (4) and the punch (7) are perpendicular to each other.

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