CN213162883U

CN213162883U - Small-size reinforcing bar stamping die

Info

Publication number: CN213162883U
Application number: CN202021069167.0U
Authority: CN
Inventors: 刘红伟; 张庆楠; 杨云飞; 王维峰
Original assignee: CCCC Tunnel Engineering Co Ltd
Current assignee: CCCC Tunnel Engineering Co Ltd
Priority date: 2020-06-11
Filing date: 2020-06-11
Publication date: 2021-05-11
Anticipated expiration: 2030-06-11

Abstract

The utility model discloses a small-sized steel bar stamping die, which comprises a stamping male die and a stamping female die, wherein the stamping male die and the stamping female die are arranged symmetrically from top to bottom, and both comprise a stamping pressure head, a first hydraulic fastening device and a second hydraulic fastening device; the bottom of the stamping pressure head array is in the same plane, the bottom of the stamping pressure head array is fixed in the shell, and a support is arranged above the shell and used for fixing the stamping male die and the stamping female die and applying stamping force. The utility model discloses a structure is at reinforcing bar punching press in-process, and the shape of processing into according to the reinforcing bar needs is arranged each independent punching press pressure head neatly. After the arrangement of the stamping pressing heads is finished, the first hydraulic fastening device and the second hydraulic fastening device apply clamping pressure to the stamping pressing heads to tightly press the stamping pressing heads together, so that deformation caused by the reaction force of the steel bars in the stamping process can be avoided, and the processing quality is not affected.

Description

Small-size reinforcing bar stamping die

Technical Field

The utility model relates to a machining device, in particular to small-size reinforcing bar stamping die belongs to reinforcing bar processing technology field.

Background

The steel bar stamping die is the main technological equipment for stamping steel bars, and the stamping part is completed by the relative movement of an upper die and a lower die. The upper die and the lower die are continuously separated and combined during processing so as to perform stamping processing on the reinforcing steel bars.

The existing steel bar stamping equipment has poor processing quality and low processing precision for small steel bar components, and is difficult to meet the design requirements, so that a novel small steel bar stamping die is needed to be provided.

SUMMERY OF THE UTILITY MODEL

The technical scheme adopted by the utility model is a small-sized steel bar stamping die, the stamping die comprises a stamping male die and a stamping female die, the stamping male die and the stamping female die are arranged symmetrically from top to bottom, and both the stamping male die and the stamping female die comprise a stamping pressure head 1, a hydraulic fastening device I2 and a hydraulic fastening device II 3; the stamping press heads 1 with different lengths are arranged in an array mode to form an enveloping surface for stamping the steel bars, the stamping steel bar enveloping surface between the stamping male die and the stamping female die is used for stamping and forming the steel bars, and the array of the stamping press heads 1 is hooped by the first hydraulic fastening device 2 and the second hydraulic fastening device 3.

Furthermore, the bottoms of the array of the stamping press heads 1 are in the same plane, the bottoms of the array of the stamping press heads 1 are fixed in the shell 4, and the bracket 5 is arranged above the shell 4 and used for fixing the stamping male die and the stamping female die and applying stamping force.

Further, the first hydraulic fastening device 2 and the second hydraulic fastening device 3 are of U-shaped structures and are nested together, and the hydraulic pump controls the piston rod to apply clamping force to the first hydraulic fastening device 2 and the second hydraulic fastening device 3 so as to clamp the array of stamping press heads 1 together.

Furthermore, the end surface of the punching press ram 1 is arc-shaped, and the lower part of the punching press ram 1 is square.

Compared with the prior art, the utility model discloses a structure is at reinforcing bar punching press in-process, and the shape that processes into according to the reinforcing bar needs is arranged each independent punching press pressure head neatly, and the envelope of punching press pressure head is the fashioned shape of reinforcing bar after the punching press is accomplished promptly. After the arrangement of the stamping pressing heads is finished, the first hydraulic fastening device and the second hydraulic fastening device apply clamping pressure to the stamping pressing heads to tightly press the stamping pressing heads together, so that deformation caused by the reaction force of the steel bars in the stamping process can be avoided, and the processing quality is not affected.

Different stamping pressure heads are required to be selected according to the hardness of different steel bars. The selection of the stamping pressure head can be influenced by the different types of the steel bars. Factors such as rough washing and interval of ribs on the surface of the steel bar can cause different degrees of abrasion of the steel bar on the stamping press head. If the rib distribution clearance on the surface of the reinforcing steel bar is larger or a single rib is thinner, a stamping head with stronger wear resistance is selected. Because the stamping press head applies force to the steel bar to be processed evenly in the stamping process, and the stress area of the rib is smaller, the pressure intensity is larger, and the requirement on the hardness of the surface of the stamping press head is higher. The end arc of the ram is usually designed with full rounding, so that the thickness of the ram is substantially equal to the diameter of the end arc, inversely proportional to the curvature. Therefore, if it is a finer molding target. Or bending points with greater curvature, requires a greater number of stamping rams to be combined into a stamping die. At this time, attention should be paid to increase the hydraulic pressure appropriately to achieve better fastening effect and prevent the situation that the stamping pressure head is dislocated in the stamping process.

Drawings

Fig. 1 is a schematic elevation structure of the present invention.

Fig. 2 is a schematic view of the vertical structure of the upper and lower dies combined punch of the present invention.

In the figure: 1. stamping a pressure head; 2. a first hydraulic fastening device; 3. a second hydraulic fastening device; 4. a housing; 5. and (4) a bracket.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of an exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.

Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

As shown in fig. 1-2, a small-sized steel bar stamping die comprises a stamping ram 1, a first hydraulic fastening device 2, a second hydraulic fastening device 3, a shell 4 and a bracket 5.

In the process of stamping the steel bars, firstly, according to the shape of the steel bars to be processed, the independent stamping indenters 1 are arranged in order, and the envelope surface of the stamping indenter 1 is the shape of the steel bars after stamping. After the arrangement of the stamping press heads 1 is finished, pressure is applied to the stamping press heads 1 through the first hydraulic device and the second hydraulic device, and the stamping press heads 1 are tightly extruded together, so that deformation caused by the reaction force of the steel bars in the stamping process can be avoided, and the processing quality is not affected.

According to the hardness of different reinforcing steel bars, different punching press heads 1 are required to be selected. For harder bars, a relatively harder press ram 1, such as a chrome ram, needs to be selected. If the hardness of the stamping press head 1 is less than that of the steel bar to be processed, in the stamping process, the surface deformation and even the depression of the stamping press head 1 can be caused by the reaction force of the rib on the surface of the steel bar to the stamping press head 1, so that the abrasion and even the damage of the stamping press head 1 are caused, and the service life of the product is shortened. The first hydraulic fastening device 2 and the second hydraulic fastening device 3 are formed by modifying the structure of a hydraulic jack, the hydraulic jack is transversely fixed on two sides of the first hydraulic fastening device 2 and the second hydraulic fastening device 3, and a piston of the hydraulic jack exerts hoop force on the first hydraulic fastening device 2 and the second hydraulic fastening device 3 by driving the hydraulic jack.

The selection of the stamping press head 1 can be influenced by the different types of the steel bars. Factors such as rough washing and interval of ribs on the surface of the steel bar can cause different degrees of abrasion of the steel bar on the punching press head 1. If the rib distribution clearance on the surface of the reinforcing steel bar is larger or a single rib is thinner, the stamping head 1 with stronger wear resistance is selected. Because the punching press pressure head 1 evenly applies force to the steel bar to be processed in the punching process, and the stress area at the rib is smaller, the pressure intensity is larger, and the requirement on the hardness of the surface of the punching press pressure head 1 is higher.

According to the shape of the forming object, a matched stamping press head 1 is required to be selected. Because the tail end of the stamping press head 1 is arc-shaped and has a certain curvature, the curvature of the bending point of the forming target is less than or equal to that of the selected stamping press head 1. For a finer forming target or a forming target with a bending point with a larger curvature, attention needs to be paid to the selection of the stamping ram 1 with the larger curvature.

The end arc of the ram 1 is designed mostly in the form of a full round angle, so that the thickness of the ram 1 is substantially equal to the diameter of the end arc, inversely proportional to the curvature. Therefore, if it is a finer molding target. Or bending points with greater curvature, requires a greater number of stamping rams 1 to be combined into a stamping die. At this time, attention should be paid to increase the hydraulic pressure appropriately to achieve a better fastening effect, so as to prevent the situation that the punching ram 1 is dislocated in the punching process.

The array of stamping rams 1 is fixed within a housing 4, leaving a support 5 above the housing 4 for holding a stamping die.

Claims

1. The utility model provides a small-size reinforcing bar stamping die which characterized in that: the stamping die comprises a stamping male die and a stamping female die, the stamping male die and the stamping female die are arranged in an up-down symmetrical mode, and both the stamping male die and the stamping female die comprise a stamping pressure head (1), a first hydraulic fastening device (2) and a second hydraulic fastening device (3); stamping press heads (1) with different lengths are arranged in an array mode to form an enveloping surface for stamping the steel bars, the stamping steel bar enveloping surface between a stamping male die and a stamping female die is used for stamping and forming the steel bars, and the array of the stamping press heads (1) is hooped by a first hydraulic fastening device (2) and a second hydraulic fastening device (3).

2. A small-sized reinforcing bar stamping die according to claim 1, wherein: the bottom of the array of the stamping pressing heads (1) is in the same plane, the bottom of the array of the stamping pressing heads (1) is fixed in the shell (4), and the support (5) is arranged above the shell (4).

3. A small-sized reinforcing bar stamping die according to claim 1, wherein: the first hydraulic fastening device (2) and the second hydraulic fastening device (3) are of U-shaped structures and are nested together, and the hydraulic pump controls a piston rod to apply a clamping force to the first hydraulic fastening device (2) and the second hydraulic fastening device (3) so as to clamp the stamping press heads (1) together in an array manner.

4. A small-sized reinforcing bar stamping die according to claim 1, wherein: the end surface of the stamping press head (1) is arc-shaped, and the lower part of the stamping press head (1) is of a square structure.