CN221362230U

CN221362230U - Punching device

Info

Publication number: CN221362230U
Application number: CN202323195837.XU
Authority: CN
Inventors: 李生武; 许洪平; 杨明贵
Original assignee: Chengdu De'an Metal Products Co ltd
Current assignee: Chengdu De'an Metal Products Co ltd
Priority date: 2023-11-23
Filing date: 2023-11-23
Publication date: 2024-07-19
Anticipated expiration: 2033-11-23

Abstract

The utility model provides a punching device which comprises a first die, a second die, a punching rod and a punch. The first mold is disposed relative to the second mold so as to be movable toward and away from each other. The punching rod and the punch are arranged on the first die and distributed along a straight line. The second die is provided with through holes corresponding to the punching rod and the punch head so that the punching rod and the punch head can extend into the corresponding through holes. When the punching device is used, a workpiece firstly passes through the punching rod, and the punching rod punches a hole on the workpiece under the punching action of the punching rod. The workpiece is then advanced a bit so that the punch and its corresponding through hole cooperate to punch and cut the punched portion from the strip to form the product. Meanwhile, the newly fed steel bar can be matched with the punching rod for punching. By the method, the two steps of separating and punching the workpiece and the steel bar are respectively carried out, so that the stress of the workpiece is reduced at the same time, and deformation caused by overlarge stress of the workpiece is avoided.

Description

Punching device

Technical Field

The utility model relates to the technical field of punching equipment, in particular to a punching device.

Background

In the processing of metal parts, presses are often used. Punching can be performed through the punching machine, and then machining of the metal piece is completed. There is a metal part provided with a through hole. The prior art process involves feeding elongated steel sheet gradually into a stamping press. The punching head of the punching machine is pressed down, and then parts are punched and cut out from the strip steel sheet. At the same time, the stamping also forms small holes in the part.

However, the punching machine in the prior art can punch and cut at one time, so that the stress of the part is high, and the processing quality of the part is easy to influence.

Disclosure of utility model

The utility model aims to provide a punching device which can separate punching and cutting, so that single stress of a workpiece is small, and deformation of the workpiece is avoided.

The embodiment of the utility model is realized by the following technical scheme:

A punching device comprises a first die, a second die, a punching rod and a punch; the first die is arranged relative to the second die so as to enable the first die and the second die to move close to or away from each other; the punching rods and the punching heads are arranged on the first die and distributed along a straight line; the second die is provided with through holes corresponding to the punching rod and the punch head, so that the punching rod and the punch head can extend into the corresponding through holes.

Further, the first mold comprises a bottom plate and a substrate; the punching rod and the punch are arranged on the bottom plate; the base plate is matched with the punching rod and the punch head to be provided with guide holes, so that the punching rod and the punch head can slide along the guide holes.

Further, an elastic pad is arranged between the base plate and the bottom plate.

Further, the elastic pad is provided with a positioning hole; the bottom plate is provided with a guide rod inserted into the positioning hole.

Further, the first mold and the second mold are distributed in the horizontal direction; the base plate is also provided with two support columns for supporting the workpiece.

Further, a punching station, a positioning station and a cutting station are sequentially arranged between the second die and the substrate along the feeding direction of the workpiece; the punching station and the cutting station respectively correspond to the punching rod and the punch; the second die is provided with a positioning rod corresponding to the positioning station; the positioning rod is disposed corresponding to the hole of the workpiece so that the positioning rod can be inserted into the hole of the workpiece.

Further, the bottom plate is provided with two sliding sleeves; the second die is provided with a sliding rod corresponding to the sliding sleeve and the sliding rod penetrates through the sliding sleeve.

The technical scheme of the embodiment of the utility model has at least the following advantages and beneficial effects:

When the punching device is used, long steel bars, namely workpieces, are gradually fed between the first die and the second die. Under the action of an external driving device, the first die is reciprocally close to and far away from the second die, so that the punching rod and the punch reciprocally extend into the through hole of the second die and withdraw from the through hole of the second die. The workpiece firstly passes through the punching rod, and the punching rod punches a hole on the workpiece under the punching action of the punching rod. The workpiece is then advanced a bit so that the punch and its corresponding through hole cooperate to punch and cut the punched portion from the strip to form the product. Meanwhile, the newly fed steel bar can be matched with the punching rod for punching.

By the method, the two steps of separating and punching the workpiece and the steel bar are respectively carried out, so that the stress of the workpiece is reduced at the same time, and deformation caused by overlarge stress of the workpiece is avoided. Thereby effectively ensuring the quality of the product.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a punching apparatus according to the present utility model;

FIG. 2 is a schematic view of the inside of the punching device;

FIG. 3 is a second schematic view of the structure of the inside of the punching device;

Fig. 4 is a schematic view of the inside of the punching device.

Icon: the device comprises a first die, a bottom plate, a substrate, a guide hole, a guide rod, a support column, a sliding sleeve, a second die, a through hole, a slide rod, a positioning rod, a punching rod, a punch, an elastic pad and a workpiece.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of 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, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Examples:

As shown in fig. 1 to 4, the present utility model provides a punching device including a first die 1, a second die 2, a punching rod 3, and a punch 4. The first mould 1 is arranged relative to the second mould 2 so as to be movable towards and away from each other. In order to ensure that the first mold 1 and the second mold 2 can move away from or towards each other, external drive means are also provided. Since the driving device is not a protection content of the present utility model, a description thereof will be repeated in the middle of the specification. The punching rod 3 and the punch 4 are both arranged on the first die 1 and distributed along a straight line. The workpiece 6 is fed through the punch rod 3 and then through the punch 4. The second die 2 is provided with through holes 21 corresponding to the punching rod 3 and the punch 4 so that the punching rod 3 and the punch 4 can each extend into their corresponding through holes 21.

When the punching device of the present utility model is used, a long steel bar, that is, a work piece 6 is gradually fed between the first die 1 and the second die 2. Under the action of the external driving device, the first die 1 is reciprocally moved toward and away from the second die 2, so that the punching rod 3 and the punch 4 reciprocally extend into the through hole 21 of the second die 2 and exit from the through hole 21 of the second die 2. The workpiece 6 passes through the punching rod 3, and the punching rod 3 punches a hole on the workpiece 6 under the punching action of the punching rod 3. Subsequently, the workpiece 6 is advanced a little so that the punch 4 and its corresponding through hole 21 cooperate to punch and cut the punched part from the strip to form the product. Meanwhile, the newly fed steel bar is matched with the punching rod 3 for punching. When the punching rod 3 and the punch 4 enter the corresponding through hole 21, the punched part is also sent into the through hole 21 and then discharged through the through hole 21.

In this way, the two steps of separating and punching the workpiece 6 and the steel bar are respectively carried out, so that the stress of the workpiece 6 is reduced at the same time, and the workpiece 6 is prevented from being deformed due to overlarge stress. Thereby effectively ensuring the quality of the product.

In this embodiment, the first mold 1 includes a base plate 11 and a base plate 12. The base plate 11 is based on the fact that it is connected to the drive means, and that the other components of the first mould 1 are mounted directly or indirectly to the base plate 11. The driving device drives the bottom plate 11 to move, so that the whole first die 1 can be driven to move relative to the second die 2. The punching rod 3 and the punch 4 are both provided to the base plate 11. The base plate 12 is provided with a guide hole 13 in cooperation with the punch rod 3 and the punch 4 so that the punch rod 3 and the punch 4 can each slide along the guide hole 13. The guide holes 13 are slightly larger in size than the punch rods 3 and the punches 4 so that the punch rods 3 and punches 4 can just slide within their corresponding guide holes 13. An elastic pad 5 is provided between the base plate 12 and the bottom plate 11. The elastic pad 5 may be a rubber pad or a silicone pad.

When the first die 1 is far away from the second die 2, a gap is reserved between the substrate 12 and the second die 2, so that steel sheets can be conveniently fed along the gap. When the first mold 1 approaches the second mold 2, the substrate 12 reaches the second mold 2, and the workpiece 6 is clamped and positioned. The first die 1 is further advanced so that the elastic pad 5 is compressively deformed, and the punching rod 3 and the punch 4 protrude out of the base plate 12 along the guide hole 13 and pass through the work 6 into the through hole 21 of the second die 2, thereby completing the punching. In the process that the first die 1 is far away from the second die 2, the elastic pad 5 is gradually restored, so that the substrate 12 is gradually far away from the bottom plate 11, and the punching rod 3 and the punch 4 are gradually retracted into the guide hole 13, so that the workpiece 6 can be smoothly pushed forward along the surface of the substrate 12.

In this embodiment, the elastic pad 5 is provided with positioning holes. The base plate 11 is provided with a guide bar 14 inserted into the positioning hole. In the process of stretching and retracting the elastic pad 5, the elastic pad 5 is always arranged between the bottom plate 11 and the base plate 12 due to the matching of the guide rod 14 and the positioning hole, so that the elastic pad 5 is prevented from deviating.

In the present embodiment, the first mold 1 and the second mold 2 are distributed in the horizontal direction. The base plate 12 is also provided with two support columns 15 which support the workpiece 6. The support columns 15 are provided at the lower portion of the base plate 12 such that the workpiece 6 is supported by the two support columns 15. The work piece 6 does not fall down due to the support of the support column 15 during the advancing of the work piece 6. The second mould 2 is provided with holes corresponding to the support columns 15, so that the support columns 15 can be stored when the first mould 1 and the second mould 2 are assembled, and the first mould 1 and the second mould 2 can be tightly combined together.

In this embodiment, a punching station, a positioning station and a cutting station are sequentially arranged between the second die 2 and the substrate 12 along the feeding direction of the workpiece 6. The punching station and the cutting station correspond to the punching bar 3 and the punch 4, respectively. The second mould 2 is provided with a positioning rod 23 corresponding to the positioning station. The positioning rod 23 is disposed corresponding to the hole of the workpiece 6 so that the positioning rod 23 can be inserted into the hole of the workpiece 6.

After the work piece 6 is punched at the punching station, the work piece 6 advances a bit. So that the hole formed by the just punched hole of the workpiece 6 moves to the positioning station and is opposite to the positioning rod 23. The positioning rod 23 is inserted into the hole of the work piece 6 when the first mold 1 and the second mold 2 are closed next. The positioning rod 23 and the positioning hole can cooperate to prove that the advancing distance of the workpiece 6 is accurate, so that the correct hole position of the product punched in the next step can be ensured. The front end of the positioning rod 23 may also be tapered. If the advancing distance of the workpiece 6 is deviated, the position of the workpiece 6 can be calibrated in the process that the positioning rod 23 is gradually inserted into the positioning hole.

In this embodiment, the base plate 11 is provided with two sliding sleeves 16. The second mold 2 is provided with a slide bar 22 corresponding to the slide 16 and the slide bar 22 is penetrated through the slide 16. The sliding sleeve 16 and the sliding rod 22 are matched with each other for guiding. Ensuring a more stable movement between the first mould 1 and the second mould 2.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A punching device, characterized in that: comprises a first die (1), a second die (2), a punching rod (3) and a punch (4); the first die (1) is arranged relative to the second die (2) so as to enable the first die and the second die to move close to or away from each other; the punching rod (3) and the punch (4) are arranged on the first die (1) and are distributed along a straight line; the second die (2) is provided with through holes (21) corresponding to the punching rod (3) and the punch (4), so that the punching rod (3) and the punch (4) can extend into the corresponding through holes (21).

2. A punching device according to claim 1, characterized in that: the first die (1) comprises a bottom plate (11) and a base plate (12); the punching rod (3) and the punch (4) are arranged on the bottom plate (11); the base plate (12) is matched with the punching rod (3) and the punch (4) and is provided with a guide hole (13), so that the punching rod (3) and the punch (4) can slide along the guide hole (13).

3. A punching device according to claim 2, characterized in that: an elastic pad (5) is arranged between the base plate (12) and the bottom plate (11).

4. A punching device according to claim 3, characterized in that: the elastic pad (5) is provided with a positioning hole; the bottom plate (11) is provided with a guide rod (14) inserted into the positioning hole.

5. The punching device as in claim 4, wherein: the first die (1) and the second die (2) are distributed along the horizontal direction; the base plate (12) is also provided with two support columns (15) for supporting the workpiece (6).

6. A punching device according to claim 5, characterized in that: the second die (2) and the substrate (12) are sequentially provided with a punching station, a positioning station and a cutting station along the feeding direction of the workpiece (6); the punching station and the cutting station respectively correspond to the punching rod (3) and the punch (4); the second die (2) is provided with a positioning rod (23) corresponding to the positioning station; the positioning rod (23) is arranged corresponding to the hole of the workpiece (6) so that the positioning rod (23) can be inserted into the hole of the workpiece (6).

7. The punching device as in claim 6, wherein: the bottom plate (11) is provided with two sliding sleeves (16); the second die (2) is provided with a sliding rod (22) corresponding to the sliding sleeve (16), and the sliding rod (22) penetrates through the sliding sleeve (16).