CN224026256U

CN224026256U - Punching mechanism and punching device

Info

Publication number: CN224026256U
Application number: CN202520711389.4U
Authority: CN
Inventors: 张星开; 孙欢
Original assignee: Nanjing Yingda Disai Industry Design Co ltd
Current assignee: Nanjing Yingda Disai Industry Design Co ltd
Priority date: 2025-04-15
Filing date: 2025-04-15
Publication date: 2026-03-24
Anticipated expiration: 2035-04-15

Abstract

The utility model relates to the technical field of punching devices, in particular to a punching mechanism and a punching device. The middle part of the support frame is fixedly provided with a stamping cylinder, the output end of the bottom of the stamping cylinder is fixedly connected with the upper surface of the mounting plate, and the lower surface of the mounting plate is fixedly connected with a stamping die head. Buffer components are arranged on two sides of the stamping die head and comprise a connecting rod, a limiting rod and a small spring; the pre-compaction subassembly includes preforming, T post, big spring and movable frame, and the preforming downside is provided with the processing platform, and processing platform both sides are provided with auxiliary clamping assembly. Through the cooperation of pre-compaction subassembly and buffering subassembly, combine auxiliary clamping assembly to realize the quick location and the clamp of work piece, effectively reduced the vibration, the displacement and the deformation of sheet metal in the punching process, showing and promoted punching quality and machining efficiency.

Description

Punching mechanism and punching device

Technical Field

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

Background

In the sheet metal processing process, the sheet metal needs to be punched sometimes, and an existing punching machine comprises a frame and a punching mechanism, and the punching mechanism is arranged on the frame. The punching mechanism comprises a mounting seat, an oil cylinder, a mounting plate and a punching head, wherein the oil cylinder is fixedly connected to the mounting seat, the output shaft is fixed with the mounting plate, and the punching head is fixedly connected to the mounting plate, so that the oil cylinder drives the punching head to be close to or far away from a metal plate, and punching of the metal plate is completed.

However, when punching, the metal plate may vibrate due to the impact force of the punching head, so that the metal plate is displaced or swayed in the punching process, and then the problems of hole position deviation, irregular hole shape and the like are caused, thereby affecting the punching quality. In addition, the insufficient contact stability between the stamping head and the metal plate material may cause uneven punching force distribution, further aggravate the shaking phenomenon of the plate material, and the utility model provides a punching mechanism and a punching device for solving the problems.

Disclosure of utility model

The present utility model is directed to a punching mechanism and a punching device, which solve the above-mentioned problems.

The punching mechanism comprises a support frame, wherein a punching cylinder is fixedly arranged in the middle of the surface of the support frame, the output end of the bottom of the punching cylinder is fixedly connected with the upper surface of a mounting plate, the lower surface of the mounting plate is fixedly connected with a punching head, buffer components are arranged on two sides of the punching head, and a pre-pressing component is arranged on one side of the buffer components;

the buffer component comprises a connecting rod, one end of the connecting rod is fixedly connected with the mounting plate, the other end of the connecting rod is sleeved on the limiting rod in a sliding way, and the lower surface of the connecting rod is abutted with the top of the small spring;

The pre-pressing assembly comprises a pressing sheet, the upper surface of the pressing sheet is fixedly connected with one end of a large spring through a T-shaped column, the other end of the large spring is fixedly connected with the movable frame, and the limiting rod and the small spring are fixedly arranged on the movable frame;

The tablet pressing downside is provided with the processing platform, and processing platform both sides are provided with auxiliary clamping assembly.

Preferably, both sides of the bottom of the support frame are fixedly connected with the upper surface of the processing table, the two movable frames are symmetrically arranged about the central plane of the mounting plate, the upper surface of the movable frames is fixedly connected with guide posts, and the guide posts are slidably sleeved on the top of the support frame.

Preferably, remove frame one side and gag lever post fixed connection, little spring bottom and remove frame fixed connection, the spacing groove has been seted up to the other side inner wall of frame that removes, and sliding connection has the stopper in the spacing groove, fixed connection between stopper and the T type post, and fixed surface is connected with anti-skidding cushion under the preforming.

Preferably, the locating blocks are symmetrically arranged on one side of the upper surface of the processing table, and the auxiliary clamping assembly comprises an L-shaped plate which is fixedly connected with the side wall of the processing table.

Preferably, the top of the L-shaped plate is fixedly connected with a limiting seat, a compression bar is arranged in the limiting seat, and the middle part of the compression bar is rotationally connected with the limiting seat through a limiting pin.

Preferably, the support seat is fixedly arranged at the bottom of the L-shaped plate and is rotationally connected with two sides of the air cylinder through the limiting shaft, and the output end of the air cylinder is rotationally connected with the bottom of the compression bar through the connecting pin.

A punching device comprises the punching mechanism.

Compared with the prior art, the utility model has the beneficial effects that:

1. Through the cooperation of pre-compaction subassembly and buffering subassembly, compress tightly sheet metal in advance and reduce the instantaneous impact of die head to panel, effectively avoided sheet metal to be because of the hole site skew and the irregular of hole shape that vibration or shake lead to in punching a hole, shown and improved punching quality.

2. The large springs in the pre-pressing assembly and the small springs in the buffering assembly respectively bear the pressing and buffering functions, so that punching force distribution is more uniform, the risk of plate deformation is reduced, and the service life of the punching die head is prolonged.

3. The arrangement of the auxiliary clamping assembly realizes the rapid positioning and clamping of the workpiece, further improves the machining efficiency and positioning precision, and solves the problem that the punching quality is affected by the movement of the metal plate in the punching process in the background art.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic top view of the overall structure of the present utility model;

FIG. 3 is a schematic top view of the internal structure of the present utility model;

Fig. 4 is a bottom view of the overall structure of the present utility model.

The device comprises a supporting frame 1, a stamping cylinder 2, a mounting plate 3, a stamping die 4, a connecting rod 5, a limiting rod 6, a small spring 7, a small spring 8, a pressing sheet 9, a T-shaped column 10, a large spring 11, a movable frame 12, a processing table 13, a limiting groove 14, a limiting block 15, an anti-slip cushion 16, a positioning block 17, an L-shaped plate 18, a limiting seat 19, a pressing rod 20, a supporting seat 21, a limiting shaft 22, an air cylinder 23 and a guide column.

Detailed Description

In order to make the objects, technical solutions, and advantages of the present utility model more apparent, the embodiments of the present utility model will be further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are some, but not all, embodiments of the present utility model, are intended to be illustrative only and not limiting of the embodiments of the present utility model, and that all other embodiments obtained by persons of ordinary skill in the art without making any inventive effort are within the scope of the present utility model.

Referring to fig. 1 to 4, the utility model provides a punching mechanism and a punching device, which comprises a supporting frame 1, wherein a punching cylinder 2 is fixedly arranged in the middle of the surface of the supporting frame 1, the supporting frame 1 stably supports the punching cylinder 2, the punching cylinder 2 is electrically connected with external control equipment, the output end of the bottom of the punching cylinder 2 is fixedly connected with the upper surface of a mounting plate 3, thereby the mounting plate 3 can be driven to move, a punching head 4 is fixedly connected with the lower surface of the mounting plate 3, the mounting plate 3 is used for fixing the punching head 4, buffer components are arranged on two sides of the punching head 4 and used for buffering when the punching head 4 punches a hole, instant impact of the punching head 4 on a metal plate is reduced, shaking or deformation of the metal plate due to overlarge impact is avoided, one side of the buffer components is provided with a pre-pressing component, the pre-pressing component can be used for compressing the metal plate, the metal plate is prevented from moving due to the operation of the punching cylinder 2, the quality of punching is improved, the buffer components comprise a connecting rod 5, one end of the connecting rod 5 is fixedly connected with the upper surface of the mounting plate 3, the other end of the connecting rod 5 is sleeved on a limiting rod 6, the lower surface of the connecting rod 5 is abutted against the top of a small spring 7, the upper surface of the connecting rod 8 is fixedly connected with the upper surface of the small spring 10 through a T-shaped spring 8, the upper surface of the T-shaped spring 8 is fixedly connected with a large spring 11, and the other end of the small spring 11 is fixedly connected with two sides of the small spring 11 are fixedly arranged on two sides of the small spring 11, and the small spring 11 are fixedly arranged on two sides of the side of the supporting frame is convenient side, and the supporting frame is used for supporting a workpiece, and is convenient for processing.

The workpiece is placed on the processing table 12, the workpiece is rapidly positioned, clamped and fixed through the auxiliary clamping assembly, so that subsequent processing is facilitated, the output end of the stamping cylinder 2 is controlled to stretch out, the mounting plate 3 is driven to move downwards, the mounting plate 3 drives the stamping head 4 to move downwards, before the stamping head 4 is contacted with a metal plate, the movable frame 11 is connected with the connecting rod 5 to drive the pressing sheet 8 to contact with the metal plate first, the pressing sheet 8 slides in the movable frame 11 through the T-shaped column 9, so that the large spring 10 is extruded, the pressing sheet 8 compresses the metal plate in advance, shaking or moving of the metal plate is prevented, the punching quality is improved, the output end of the stamping cylinder 2 is continuously lowered, the connecting rod 5 slides under the limit of the limiting rod 6, the spring 7 is compressed simultaneously, the stamping head 4 punches a hole on the metal plate at the moment, damage to the stamping head 4 is avoided, the service life is prolonged, the punching quality is further improved, and shaking or deformation of the plate due to overlarge is avoided.

The support frame 1 bottom both sides all with processing bench 12 upper surface fixed connection, processing bench 12 carries out steady rest to support frame 1, remove frame 11 and be provided with two and about mounting panel 3 central plane symmetrical arrangement, remove frame 11 upper surface fixed connection has guide post 23, guide post 23 slip cap establishes at support frame 1 top, slide in support frame 1 through guide post 23, thereby improve the stability of removing frame 11 motion, be favorable to improving the stability in the punching process, remove frame 11 one side and gag lever post 6 fixed connection, little spring 7 bottom and remove frame 11 fixed connection, limit groove 13 has been seted up to the other side inner wall of removing frame 11, limit groove 13 sliding connection has stopper 14, fixed connection between stopper 14 and the T type post 9, the fixed connection is connected with anti-skidding cushion 15 under the preforming 8, when T type post 9 slides in removing frame 11, through the sliding connection between stopper 14 and the limit groove 13, thereby improve the stability of T type post 9 motion, then can make the anti-skidding cushion 15 of preforming 8 bottom and the tight laminating of metal sheet, and then the displacement of metal sheet through the contact of anti-skidding cushion 15 and metal sheet.

The positioning block 16 is symmetrically arranged on one side of the upper surface of the processing table 12, the through holes are formed in the lower surface of the processing table 12, so that the processing table 12 is prevented from being damaged by the punching head 4 through movement of the punching head 4, the metal plate is rapidly positioned and placed through matching of the arranged positioning block 16 with the right-angle side of one side of the metal plate, the auxiliary clamping assembly comprises an L-shaped plate 17, the L-shaped plate 17 is fixedly connected with a limiting seat 18 between the side wall of the processing table 12 and the side wall of the L-shaped plate 17, a pressing rod 19 is installed in the limiting seat 18, the middle of the pressing rod 19 is rotationally connected with the limiting seat 18 through a limiting pin, a supporting seat 20 is fixedly installed at the bottom of the L-shaped plate 17, the supporting seat 20 is rotationally connected with the two sides of the air cylinder 22 through a limiting shaft 21, the output end of the air cylinder 22 is rotationally connected with the bottom of the pressing rod 19 through a connecting pin, the output end of the air cylinder 22 extends out, the output end of the air cylinder is rotationally connected with the bottom of the pressing rod 19 through a connecting pin, the air cylinder 19 is driven to move, the air cylinder 22 is limited by the limiting pin, the limiting shaft 21 is made the output end of the air cylinder is rotated in a direction away from the L-shaped plate 17, the limiting seat 18, the middle of the pressing rod 19 is installed, the pressing rod 19 is made to be rotationally connected with the top of the limiting pin 19 through the limiting pin at the limiting pin, and the middle of the pressing rod 19 is made to be pressed against the top the metal plate and the top surface of the pressing plate and the pressing plate is pressed against the metal plate.

In actual use, a metal plate is pushed in from one side of the processing table 12 far away from the positioning blocks 16, one end right-angle edge of the metal plate is abutted against the two positioning blocks 16, so that metal limiting is primarily completed, then the top of the pressing rod 19 is indirectly rotated towards the direction close to the upper surface of the metal plate by controlling the output extension of the air cylinder 22 until the pressing rod 19 abuts against the upper surface of the metal plate, so that auxiliary pressing of the metal plate is completed, the metal plate is further limited and fixed, then the mounting plate 3 is driven to move downwards by controlling the output end of the pressing cylinder 2, the mounting plate 3 drives the stamping die 4 to synchronously move, before the stamping die 4 contacts with the metal plate, the moving frame 11 is indirectly driven to move under the connection of the connecting rod 5, the moving frame 11 slides downwards under the limit of the guide post 23, so that the moving frame 11 drives the anti-slip cushion 15 at the bottom of the pressing plate 8 to contact with the metal plate first, the cooperation of the stopper 14 of preforming 8 through T type post 9 both sides and spacing groove 13 is in the slip of removing in frame 11 to extrude big spring 10, make preforming 8 compress tightly the metal sheet in advance, prevent rocking or the removal of metal sheet, improve positioning accuracy and punching quality, then punching press jar 2 output continues to descend, connecting rod 5 slides under the spacing of gag lever post 6, compress down spring 7 simultaneously, punching die head 4 carries out the punching operation to the metal sheet this moment, can cushion punching process under the effect of little spring 7, avoid punching die head 4's damage, improve its life, further promote punching quality, avoid panel to take place shake or deformation because of the impact is too big, after the processing is accomplished, can take out the metal sheet after the processing is accomplished through control punching press jar 2 and cylinder 22 reverse motion.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A punching mechanism, comprising a support frame (1), characterized in that: a punching cylinder (2) is fixedly installed in the middle of the surface of the support frame (1), the bottom output end of the punching cylinder (2) is fixedly connected to the upper surface of the mounting plate (3), a punching die head (4) is fixedly connected to the lower surface of the mounting plate (3), buffer components are provided on both sides of the punching die head (4), and a pre-pressing component is provided on one side of the buffer components;

The buffer assembly includes a connecting rod (5), one end of which is fixedly connected to the mounting plate (3), and the other end of which is slidably sleeved on the limiting rod (6). The lower surface of the connecting rod (5) abuts against the top of the small spring (7).

The pre-compression assembly includes a pressure plate (8), the upper surface of which is fixedly connected to one end of a large spring (10) via a T-shaped post (9), and the other end of the large spring (10) is fixedly connected to a movable frame (11). The limiting rod (6) and the small spring (7) are fixedly installed on the movable frame (11).

A processing table (12) is provided on the lower side of the tablet press (8), and auxiliary clamping components are provided on both sides of the processing table (12).

2. A punching mechanism according to claim 1, characterized in that: the bottom two sides of the support frame (1) are fixedly connected to the upper surface of the processing table (12), two movable frames (11) are provided and symmetrically arranged about the center plane of the mounting plate (3), and a guide column (23) is fixedly connected to the upper surface of the movable frame (11), and the guide column (23) is slidably sleeved on the top of the support frame (1).

3. A punching mechanism according to claim 2, characterized in that: one side of the movable frame (11) is fixedly connected to the limiting rod (6), the bottom of the small spring (7) is fixedly connected to the movable frame (11), a limiting groove (13) is opened on the inner wall of the other side of the movable frame (11), a limiting block (14) is slidably connected in the limiting groove (13), the limiting block (14) is fixedly connected to the T-shaped column (9), and an anti-slip soft pad (15) is fixedly connected to the lower surface of the pressure plate (8).

4. A punching mechanism according to claim 1, characterized in that: positioning blocks (16) are symmetrically arranged on one side of the upper surface of the processing table (12), and the auxiliary clamping assembly includes an L-shaped plate (17), which is fixedly connected to the side wall of the processing table (12).

5. A punching mechanism according to claim 4, characterized in that: a limiting seat (18) is fixedly connected to the top of the L-shaped plate (17), a pressure rod (19) is installed inside the limiting seat (18), and the middle part of the pressure rod (19) is rotatably connected to the limiting seat (18) by a limiting pin.

6. A punching mechanism according to claim 5, characterized in that: a support base (20) is fixedly installed at the bottom of the L-shaped plate (17), the support base (20) is rotatably connected to both sides of the cylinder (22) through a limiting shaft (21), and the output end of the cylinder (22) is rotatably connected to the bottom of the pressure rod (19) through a connecting pin.

7. A punching device, characterized in that it includes the punching mechanism described in any one of claims 1-6.