Numerical control punching machine for machining box shell

Abstract

The utility model discloses a numerical control punching machine for processing a box shell, which comprises a numerical control punching machine main body, a machine tool groove plate is fixedly arranged on the numerical control punching machine main body, a bearing die is arranged on the machine tool groove plate in a matching way, a circular groove is arranged on the upper end face of the bearing die, and a discharge port communicated with the circular groove is horizontally arranged on the bearing die in a penetrating way. A circular groove is formed in the upper side of the numerical control press body, a bearing cylinder is arranged in the circular groove in a matched mode, the bearing cylinder is arranged on the upper side of the discharging port, a punching hole is coaxially formed in the bearing cylinder in a penetrating mode, and a control assembly for controlling the position of the bearing cylinder is arranged in the circular groove. The annular pressing block is fixedly connected with the inner bottom wall of the annular groove through a plurality of hydraulic telescopic rods. According to the clamping device, the clamping effect and the punching effect on the punching position can be guaranteed, the situation that a box shell plate deforms during punching is avoided, the clamping applicability is high, and meanwhile waste materials generated after punching can be conveniently guided out.

Description

Technical Field

[0001] The utility model relates to the technical field related to box shell processing, in particular to a numerical control punching machine for box shell processing. Background Art

[0002] CNC punching machines can be used to process various types of metal sheet parts, and can automatically complete a variety of complex hole types and shallow drawing forming processes at one time. Through a simple mold combination, compared with traditional stamping, a large amount of mold costs can be saved, and small batches and diversified products can be processed at low cost and in a short cycle. It has a large processing range and processing capacity, so as to adapt to market and product changes in a timely manner. During the stamping process of the box shell plate, the box shell plate is not completely fixed, which may lead to insufficient stamping accuracy, and the box shell plate is prone to deformation under pressure, which will cause deviations in the stamping position.

[0003] The patent document of my country with application number CN202320413534.1 discloses a CNC punch press for processing box shells, including a bed and a punching knife assembly arranged above the bed, characterized in that: a waste trough is provided in the middle of the upper end of the bed, a waste removal device is provided inside the waste trough, grooves are provided on the left and right sides of the bed, a second screw rod is provided inside the left groove, and a sliding column is provided inside the right groove, a sliding block is threadedly connected to the surface of the second screw rod, a sliding block is slidably connected to the outer surface of the sliding column, a punching knife assembly is fixedly connected to the upper end of the bed, and two groups of A side panel, a second slide groove is provided on the side of the side panel, a clamping seat is arranged inside the side panel and is slidably connected to the second slide groove, and a clamping device is slidably connected to the clamping seat; the device can fix the box shell sheet material, and at the same time, the material discharge operation can be performed during the stamping process, but the box shell sheet material is fixed by setting a clamping structure on both sides, and the position where the box shell sheet material is subjected to the stamping action lacks a supporting structure, which may cause deformation during the punching process and affect the stamping effect; at the same time, some box shell sheets will not be punched until they are processed into a certain shape, and the edges have been processed into other shapes, which are not suitable for the clamping structure of the device.

[0004] Therefore, we propose a CNC punching machine for box shell processing to solve the above problems. Summary of the invention

[0005] The utility model aims to solve the shortcomings in the prior art and provides a CNC punching machine for processing a box shell.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A CNC punching machine for processing a box shell comprises a CNC punching machine body, characterized in that a machine tool slot plate is fixedly arranged on the CNC punching machine body, a receiving mold is matched on the machine tool slot plate, a circular groove is arranged on the upper end surface of the receiving mold, a discharge port connected to the circular groove is horizontally penetrated on the receiving mold, a receiving cylinder is matched in the circular groove, the receiving cylinder is placed on the upper side of the discharge port, a punching hole is coaxially penetrated on the receiving cylinder, a control component for controlling the position of the receiving cylinder is arranged in the circular groove, an annular pressure block is arranged on the stamping end outer sleeve of the CNC punching machine body, an annular groove corresponding to the annular pressure block is arranged on the CNC punching machine body, the annular pressure block corresponds to the position of the receiving cylinder and the annular pressure block is fixedly connected to the inner bottom wall of the annular groove through a plurality of hydraulic telescopic rods.

[0008] Preferably, the control component includes an annular groove arranged on the inner wall of the circular groove, a plurality of hydraulic push rods are vertically arranged in the annular groove, an annular slider is fixedly sleeved on the receiving cylinder, the annular slider is matched and arranged in the annular groove, the upper end of the hydraulic push rod is fixedly connected to the annular slider, and the lower end of the hydraulic push rod is fixedly embedded in the receiving mold.

[0009] Preferably, a hydraulic clamp is fixedly embedded on the inner wall of the annular groove, the hydraulic clamp corresponds to the position of the receiving cylinder, and an anti-slip serrated structure is provided on the contact surface of the hydraulic clamp and the receiving cylinder.

[0010] Preferably, rubber pressure pads processed into a rough shape are fixedly provided on the end surfaces of the annular pressure block and the receiving cylinder that are close to each other.

[0011] Preferably, the inner bottom wall of the discharge port is configured to be an arc shape with a raised middle section.

[0012] Preferably, a receiving annular member corresponding to the receiving cylinder is fixedly provided at the inner bottom of the circular groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the device arranges a receiving cylinder that can move up and down on the receiving mold. According to the shape of the box shell plate, the position of the receiving cylinder can be changed to ensure that the upper end surface of the receiving cylinder fits the punching position of the box shell plate, and then controls the annular pressure block arranged outside the stamping end to move downward, so that the box shell plate is tightly pressed against the receiving cylinder to achieve a fixing operation, and then the stamping end is used for stamping, and the stamped waste enters the circular groove through the stamping hole on the receiving cylinder, and then enters the discharge port for discharge. The overall stamping efficiency of the device is high, and the punching applicability is high, and stamping can be performed on box shell plates of different sizes and shapes. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1It is a three-dimensional structural schematic diagram of the utility model.

[0015] Figure 2 It is a schematic diagram of the partial cross-sectional structure of the utility model.

[0016] In the figure:

[0017] 1 CNC punching machine body, 2 machine tool slot plate, 3 receiving mold, 4 receiving cylinder, 5 annular pressure block, 6 hydraulic ejector, 7 annular slide block, 8 hydraulic clamp, 9 rubber pressure pad, 10 receiving annular part. Implementation

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] Reference Figure 1-2 A CNC punching machine for processing a box shell shown in the figure comprises:

[0020] A CNC punching machine body 1 of an existing structure is adopted, wherein a machine tool slot plate 2 is fixedly arranged on the CNC punching machine body 1, and a receiving mold 3 is matched on the machine tool slot plate 2. The machine tool slot plate 2 is widely used in machine tools and will not be described in detail here; in order to ensure that the receiving mold 3 can adapt to box shell plates of different shapes, the following structure is set: a circular groove is arranged on the upper end face of the receiving mold 3, and at the same time, in order to ensure the discharge of stamping waste, a discharge port connected to the circular groove is horizontally penetrated on the receiving mold 3, and the bottom wall of the discharge port is arranged to be an arc-shaped with a raised middle section to facilitate the discharge of waste; wherein a receiving cylinder 4 is matched and arranged in the circular groove, and the receiving cylinder 4 is placed on the upper side of the discharge port, and a receiving ring member 10 corresponding to the receiving cylinder 4 is fixedly arranged on the bottom of the circular groove to limit the lowest position of the receiving cylinder 4 to avoid affecting the discharge port, and a punching hole is coaxially penetrated on the receiving cylinder 4 to cooperate with the punching end to perform the punching operation;

[0021] The adaptation of the box shell sheet of different shapes is mainly achieved by the vertical movement of the receiving cylinder 4. For this purpose, a control component for controlling the position of the receiving cylinder 4 is arranged in the circular groove. Specifically, the control component includes an annular groove arranged on the inner wall of the circular groove, and a plurality of hydraulic ejectors 6 are arranged vertically around the annular groove. An annular slider 7 is fixedly sleeved on the receiving cylinder 4, and the annular slider 7 is matched and arranged in the annular groove. The upper end of the hydraulic ejector 6 is fixedly connected to the annular slider 7, and the lower end of the hydraulic ejector 6 is fixedly embedded in the receiving mold 3. Through the control of the hydraulic ejector 6, The vertical position of the receiving cylinder 4 can be changed; during the stamping process, the receiving cylinder 4 is the main load-bearing structure. In order to ensure the bearing stability, a hydraulic clamp 8 is fixedly embedded on the inner wall of the annular groove. The hydraulic clamp 8 corresponds to the position of the receiving cylinder 4. The hydraulic clamp 8 adopts the existing technology and can clamp and fix the receiving cylinder 4 to limit its vertical position. Furthermore, the contact surface of the hydraulic clamp 8 and the receiving cylinder 4 is provided with an anti-slip serrated structure to increase stability. The position of the hydraulic clamp 8 should be outside the moving stroke of the annular slider 7.

[0022] In order to avoid the movement of the box shell sheet during stamping, it is necessary to limit it. Therefore, an annular pressure block 5 is provided on the stamping end of the CNC punching machine body 1, and an annular groove corresponding to the annular pressure block 5 is provided on the CNC punching machine body 1. The annular pressure block 5 can be put into the annular groove, and then the stamping end is operated to avoid the annular pressure block 5 from obstructing it; specifically, the annular pressure block 5 corresponds to the position of the receiving cylinder 4 and the annular pressure block 5 is fixedly connected to the inner bottom wall of the annular groove through a number of hydraulic telescopic rods. Before stamping, the annular pressure block 5 is first pressed tightly against the box shell sheet through the hydraulic telescopic rod to ensure stable limiting; in order to ensure that the limiting is stable and stable, rubber pressure pads 9 processed to a rough shape are fixedly provided on the end faces of the annular pressure block 5 and the receiving cylinder 4 that are close to each other.

[0023] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A CNC punching machine for processing a box shell, comprising a CNC punching machine body (1), characterized in that: A machine tool slot plate (2) is fixedly arranged on the CNC punch main body (1), a receiving die (3) is matched with the machine tool slot plate (2), a circular groove is arranged on the upper end surface of the receiving die (3), a discharge port connected to the circular groove is horizontally penetrated on the receiving die (3), a receiving cylinder (4) is matched with the circular groove, the receiving cylinder (4) is placed on the upper side of the discharge port, a punching hole is coaxially penetrated on the receiving cylinder (4), a control component for controlling the position of the receiving cylinder (4) is arranged in the circular groove, an annular pressing block (5) is provided on the stamping end outer sleeve of the CNC punch main body (1), and an annular groove corresponding to the annular pressing block (5) is arranged on the CNC punch main body (1), the annular pressing block (5) corresponds to the position of the receiving cylinder (4), and the annular pressing block (5) is fixedly connected to the inner bottom wall of the annular groove through a plurality of hydraulic telescopic rods.

2. A CNC punching machine for processing a box shell according to claim 1, characterized in that: The control component comprises an annular groove arranged on the inner wall of the circular groove, a plurality of hydraulic push rods (6) are vertically arranged in the annular groove, an annular slider (7) is fixedly sleeved on the receiving cylinder (4), the annular slider (7) is matched and arranged in the annular groove, the upper end of the hydraulic push rod (6) is fixedly connected to the annular slider (7), and the lower end of the hydraulic push rod (6) is fixedly embedded in the receiving mold (3).

3. A CNC punching machine for processing a box shell according to claim 2, characterized in that: A hydraulic clamp (8) is fixedly embedded on the inner wall of the annular groove, the hydraulic clamp (8) corresponds to the position of the receiving cylinder (4), and anti-slip serrated structures are provided on the contact surfaces of the hydraulic clamp (8) and the receiving cylinder (4).

4. A CNC punching machine for processing a box shell according to claim 1, characterized in that: A rubber pressure pad (9) processed into a rough shape is fixedly arranged on the end surfaces of the annular pressure block (5) and the receiving cylinder (4) that are close to each other.

5. The CNC punching machine for processing a box shell according to claim 1, characterized in that: The inner bottom wall of the discharge port is arranged in an arc shape with a raised middle section.

6. A CNC punching machine for processing a box shell according to claim 1, characterized in that: A receiving annular part (10) corresponding to the receiving cylinder (4) is fixedly arranged at the bottom of the circular groove.

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