Punching mechanism and punching device

Abstract

The utility model relates to the technical field of punching devices, in particular to a punching mechanism and a punching device.The punching mechanism comprises a supporting frame, a punching cylinder, a mounting plate, a punching die head, a buffering assembly, a pre-pressing assembly and an auxiliary clamping assembly. A stamping cylinder is fixedly installed in the middle of the supporting frame, the bottom output end of the stamping cylinder is fixedly connected with the upper surface of a mounting plate, and a stamping die head is fixedly connected with the lower surface of the mounting plate. Buffering assemblies are arranged on the two sides of the punching die head and comprise connecting rods, limiting rods and small springs. The pre-pressing assembly comprises a pressing piece, a T-shaped column, a large spring and a movable frame, a machining table is arranged on the lower side of the pressing piece, and auxiliary clamping assemblies are arranged on the two sides of the machining table. The pre-pressing assembly and the buffering assembly are used in cooperation, rapid positioning and clamping of a workpiece are achieved in combination with the auxiliary clamping assembly, vibration, displacement and deformation of a metal plate in the punching process are effectively reduced, and the punching quality and the machining efficiency are remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to punch device technical field, concretely is a punch mechanism and punch device. BACKGROUND

[0002] In the metal plate processing process, sometimes need to punch the metal plate, the existing puncher includes frame and punch mechanism, and the punch mechanism is installed on the frame. Among them, the punch mechanism includes mounting seat, oil cylinder, mounting plate and punch head, the oil cylinder is fixedly connected to the mounting seat and the output shaft is fixed with the mounting plate, the punch head is fixedly connected to the mounting plate, so as to realize the oil cylinder drive punch head close to or away from the metal plate, complete the punch of metal plate.

[0003] However, the metal plate may vibrate due to the impact force of the punch head during punching, causing displacement or shaking of the metal plate during punching, resulting in hole position deviation, irregular hole shape and other problems, and further affecting the punching quality. In addition, the contact stability between the punch head and the metal plate is insufficient, which may also cause uneven distribution of punching force, further aggravating the shaking phenomenon of the plate. Therefore, the utility model provides a punch mechanism and punch device to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a punch mechanism and punch device to solve the problems in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a punch mechanism and punch device, comprising: support frame, the surface middle part of support frame is fixedly installed with punch cylinder, the bottom output end of punch cylinder is fixedly connected with the upper surface of mounting plate, the lower surface of mounting plate is fixedly connected with punch head, the both sides of punch head are provided with buffer assembly, one side of buffer assembly is provided with pre-pressing assembly;

[0006] The buffer assembly includes a connecting rod, one end of the connecting rod is fixedly connected with the mounting plate, the other end of the connecting rod is slidably sleeved on the limiting rod, and the lower surface of the connecting rod abuts against the top of the small spring;

[0007] The pre-pressing assembly includes a pressing sheet, the upper surface of the pressing sheet is fixedly connected with one end of the large spring through a T-shaped column, the other end of the large spring is fixedly connected with the moving frame, and the limiting rod and the small spring are fixedly installed on the moving frame;

[0008] The lower side of the pressing sheet is provided with a processing table, and the both sides of the processing table are provided with auxiliary clamping assemblies.

[0009] Preferably, the bottom of the support frame is fixedly connected with the upper surface of the processing table on both sides, the moving frame is provided with two and is symmetrically arranged about the center plane of the mounting plate, the upper surface of the moving frame is fixedly connected with a guide column, and the guide column is slidably sleeved on the top of the support frame.

[0010] Preferably, one side of the moving frame is fixedly connected with the limiting rod, the bottom of the small spring is fixedly connected with the moving frame, a limiting groove is arranged on the inner wall of the other side of the moving frame, a limiting block is slidably connected in the limiting groove, the limiting block is fixedly connected between the T-shaped column, and the lower surface of the pressing plate is fixedly connected with an antiskid soft pad.

[0011] Preferably, the upper surface of the processing table is symmetrically provided with a positioning block on one side, and the auxiliary clamping assembly comprises an L-shaped plate fixedly connected between the processing table and the side wall.

[0012] Preferably, the top of the L-shaped plate is fixedly connected with a limiting seat, a pressing rod is installed in the limiting seat, and the middle of the pressing rod is rotatably connected with the limiting seat through a limiting pin.

[0013] Preferably, the bottom of the L-shaped plate is fixedly provided with a supporting seat, the supporting seat is rotatably connected with the two sides of the air cylinder through a limiting shaft, and the output end of the air cylinder is rotatably connected with the bottom of the pressing rod through a connecting pin.

[0014] A punching device comprising the punching mechanism.

[0015] Compared with the prior art, the punching device has the beneficial effects that:

[0016] 1. By cooperating the pre-pressing assembly and the buffer assembly, the metal plate is pre-pressed and the instantaneous impact of the die head on the plate is reduced, effectively avoiding the hole position deviation and irregular hole shape caused by vibration or shaking of the metal plate during the punching process, and significantly improving the punching quality.

[0017] 2. The large spring in the pre-pressing assembly and the small spring in the buffer assembly respectively bear the functions of pressing and buffering, so that the punching force is more evenly distributed, the risk of plate deformation is reduced, and the service life of the die head is prolonged.

[0018] 3. The setting of the auxiliary clamping assembly realizes the rapid positioning and clamping of the workpiece, further improves the processing efficiency and positioning accuracy, and solves the problem of affecting the punching quality of the metal plate due to movement during the punching process in the background technology. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Fig. 2 It is a schematic diagram of the overall structure of the utility model from the top;

[0021] Fig. 3 It is a schematic diagram of the internal structure of the utility model from the top;

[0022] Fig. 4 It is a schematic diagram of the overall structure of the utility model from the bottom.

[0023] In the figure: 1, support frame; 2, punching cylinder; 3, mounting plate; 4, die head; 5, connecting rod; 6, limiting rod; 7, small spring; 8, pressing sheet; 9, T-shaped column; 10, large spring; 11, moving frame; 12, processing table; 13, limiting groove; 14, limiting block; 15, antiskid soft pad; 16, positioning block; 17, L-shaped plate; 18, limiting seat; 19, pressing rod; 20, supporting seat; 21, limiting shaft; 22, air cylinder; 23, guide column. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme of the utility model carry out clearly, complete description, and the advantage is more clear and distinct, the following combining with the figure to the utility model embodiment carries out further detailed explanation.Should understand, the specific embodiment described here is a part of the embodiment of the utility model, instead of all the embodiments, only to explain the embodiment of the utility model, and is not used to limit the embodiment of the utility model, all other embodiments obtained by the ordinary skill in the art without making the creative labor belongs to the scope of the protection of the utility model.

[0025] Please refer to Figs. 1 to 4 The utility model provides a kind of technical scheme: a punching mechanism and punching device, comprising: support frame 1, support frame 1 surface middle part is fixedly installed with punching cylinder 2, support frame 1 is stably supported to punching cylinder 2, and punching cylinder 2 is electrically connected with external control equipment, and the bottom output end of punching cylinder 2 is fixedly connected with the upper surface of mounting plate 3, so as to drive mounting plate 3 to move, and the lower surface of mounting plate 3 is fixedly connected with die head 4, and mounting plate 3 is fixed to die head 4, and die head 4 both sides are provided with buffer assembly, buffer assembly is buffered when die head 4 punches, reduce the instantaneous impact of die head 4 to metal plate, avoid that plate is shaken or deformed due to impact is too large, buffer assembly side is provided with pre-pressing assembly, the setting of pre-pressing assembly can pre-press metal plate, prevent metal plate from moving due to the operation of punching cylinder 2, improve the quality of punching, and buffer assembly includes connecting rod 5, one end of connecting rod 5 is fixedly connected with mounting plate 3, and the other end of connecting rod 5 is slidably sleeved on limiting rod 6, and the lower surface of connecting rod 5 is in contact with the top of small spring 7, and pre-pressing assembly includes pressing sheet 8, the upper surface of pressing sheet 8 is fixedly connected with one end of large spring 10 by T-shaped column 9, and the other end of large spring 10 is fixedly connected with moving frame 11, and limiting rod 6, small spring 7 are fixedly installed on moving frame 11, and the lower side of pressing sheet 8 is provided with processing table 12, and the both sides of processing table 12 are provided with auxiliary clamping assembly, and the workpiece is quickly positioned and clamped before processing through auxiliary clamping assembly.

[0026] The workpiece is placed on the machining table 12, and first the workpiece is quickly positioned and clamped by the auxiliary clamping assembly, so as to facilitate subsequent machining. The output end of the punching cylinder 2 is extended to drive the mounting plate 3 to move downward, and the mounting plate 3 drives the punch head 4 to move downward. Before the punch head 4 contacts the metal plate, the moving frame 11 drives the pressing plate 8 to first contact the metal plate under the connection of the connecting rod 5. The pressing plate 8 slides in the moving frame 11 through the T-shaped column 9, thereby extruding the large spring 10, so that the pressing plate 8 pre-presses the metal plate to prevent the metal plate from shaking or moving, and improves the punching quality. Then the output end of the punching cylinder 2 continues to descend, and the connecting rod 5 slides under the limiting of the limiting rod 6, while the small spring 7 is compressed. At this time, the punch head 4 performs a punching operation on the metal plate. Under the action of the small spring 7, the punching process can be buffered to avoid damage to the punch head 4, improve its service life, further improve the punching quality, and avoid shaking or deformation of the plate due to excessive impact.

[0027] The bottom of the support frame 1 is fixedly connected with the upper surface of the machining table 12, and the machining table 12 stably supports the support frame 1. The moving frame 11 is provided with two and is symmetrically arranged about the center plane of the mounting plate 3. The upper surface of the moving frame 11 is fixedly connected with a guide column 23, and the guide column 23 is slidably sleeved at the top of the support frame 1. By sliding the guide column 23 in the support frame 1, the stability of the movement of the moving frame 11 is improved, which is beneficial to improve the stability during the punching process. One side of the moving frame 11 is fixedly connected with the limiting rod 6, and the bottom of the small spring 7 is fixedly connected with the moving frame 11. A limiting groove 13 is formed in the other side inner wall of the moving frame 11, and a limiting block 14 is slidably connected in the limiting groove 13. The limiting block 14 is fixedly connected between the T-shaped column 9. The lower surface of the pressing plate 8 is fixedly connected with an anti-skid soft pad 15. When the T-shaped column 9 slides in the moving frame 11, the limiting block 14 is slidably connected between the limiting groove 13, thereby improving the stability of the movement of the T-shaped column 9, and then the anti-skid soft pad 15 at the bottom of the pressing plate 8 can be tightly attached to the metal plate. Through the contact between the anti-skid soft pad 15 and the metal plate, the displacement of the metal plate is avoided.

[0028] The upper surface of the processing table 12 is symmetrically provided with positioning blocks 16 on one side, and a through hole is formed in the lower surface of the processing table 12, so that the movement of the die head 4 is facilitated, and the die head 4 is prevented from damaging the processing table 12. The positioning blocks 16 are matched with the straight edges of the metal plate on one side, so that the metal plate is quickly positioned and placed. The auxiliary clamping assembly comprises an L-shaped plate 17, which is fixedly connected between the side wall of the processing table 12. The L-shaped plate 17 is fixedly connected with a limiting seat 18 at the top. A pressing rod 19 is installed in the limiting seat 18. The pressing rod 19 is rotatably connected with the limiting seat 18 through a limiting pin in the middle. A supporting seat 20 is fixedly installed at the bottom of the L-shaped plate 17. The supporting seat 20 is rotatably connected with the gas cylinder 22 on both sides through a limiting shaft 21. The output end of the gas cylinder 22 is rotatably connected with the bottom of the pressing rod 19 through a connecting pin. The gas cylinder 22 is electrically connected with an external control device. The output end of the gas cylinder 22 is controlled to extend, so that the output end is rotatably connected with the bottom of the pressing rod 19 through the connecting pin, drives the pressing rod 19 to move, and the output end of the gas cylinder 22 is rotated away from the L-shaped plate 17 under the limiting of the limiting shaft 21, so that the pressing rod 19 is limited by the limiting pin in the middle, and then the top of the pressing rod 19 is rotated towards the upper surface of the metal plate, until the pressing rod 19 abuts against the upper surface of the metal plate, so that the metal plate is tightly pressed.

[0029] In actual use, the metal plate is pushed from the side of the processing table 12 away from the positioning blocks 16, so that one end of the metal plate abuts against the two positioning blocks 16, and the metal plate is preliminarily limited. Then the output end of the gas cylinder 22 is controlled to extend, so that the top of the pressing rod 19 is indirectly rotated towards the upper surface of the metal plate, until the pressing rod 19 abuts against the upper surface of the metal plate, so that the metal plate is tightly pressed, and then the output end of the stamping cylinder 2 is controlled to extend, so that the mounting plate 3 moves downwards, the mounting plate 3 drives the die head 4 to move synchronously, before the die head 4 contacts 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 limiting of the guide column 23, so that the anti-skid cushion 15 at the bottom of the pressing piece 8 is first contacted with the metal plate, the limiting blocks 14 on both sides of the T-shaped column 9 of the pressing piece 8 slide in the moving frame 11 under the cooperation of the limiting grooves 13, so that the large spring 10 is squeezed, the metal plate is tightly pressed by the pressing piece 8 in advance, the shaking or movement of the metal plate is prevented, the positioning accuracy and the punching quality are improved, then the output end of the stamping cylinder 2 continues to descend, the connecting rod 5 slides under the limiting of the limiting rod 6, and the small spring 7 is compressed, at this time, the die head 4 performs the punching operation on the metal plate, and the small spring 7 can buffer the punching process, so that the die head 4 is prevented from being damaged, the service life is improved, the punching quality is further improved, the plate is prevented from shaking or deforming due to excessive impact, and after the processing is completed, the metal plate processed is taken out by controlling the stamping cylinder 2 and the gas cylinder 22 to move reversely.

[0030] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A punching mechanism comprising a support frame (1), characterized in that: The surface middle part of the support frame (1) is fixedly installed with a punching cylinder (2), the bottom output end of the punching cylinder (2) is fixedly connected with the upper surface of a mounting plate (3), the lower surface of the mounting plate (3) is fixedly connected with a punch head (4), the two sides of the punch head (4) are provided with a buffer assembly, and one side of the buffer assembly is provided with a pre-pressing assembly. The buffer assembly comprises a connecting rod (5), one end of the connecting rod (5) is fixedly connected with the mounting plate (3), the other end of the connecting rod (5) is slidably sleeved on a limiting rod (6), and the lower surface of the connecting rod (5) abuts against the top of a small spring (7); The pre-pressing assembly comprises a pressing piece (8), the upper surface of the pressing piece (8) is fixedly connected with one end of a large spring (10) through a T-shaped column (9), the other end of the large spring (10) is fixedly connected with a moving frame (11), and the limiting rod (6) and the small spring (7) are fixedly installed on the moving frame (11); The lower side of the pressing piece (8) is provided with a machining table (12), and the two sides of the machining table (12) are provided with an auxiliary clamping assembly.

2. A piercing mechanism according to claim 1, wherein: The bottom two sides of the support frame (1) are fixedly connected with the upper surface of the machining table (12), the moving frame (11) is provided with two and is symmetrically arranged about the center plane of the mounting plate (3), the upper surface of the moving frame (11) is fixedly connected with a guide column (23), and the guide column (23) is slidably sleeved on the top of the support frame (1).

3. A piercing mechanism according to claim 2, wherein: The one side of the moving frame (11) is fixedly connected with the limiting rod (6), the bottom of the small spring (7) is fixedly connected with the moving frame (11), the other side inner wall of the moving frame (11) is provided with a limiting groove (13), a limiting block (14) is slidably connected in the limiting groove (13), the limiting block (14) is fixedly connected between the T-shaped column (9), and the lower surface of the pressing piece (8) is fixedly connected with an antiskid soft pad (15).

4. A punching mechanism according to claim 1, characterized in that: The upper surface of the machining table (12) is symmetrically provided with a positioning block (16) on one side, and the auxiliary clamping assembly comprises an L-shaped plate (17) which is fixedly connected between the side wall of the machining table (12).

5. A piercing mechanism according to claim 4, wherein: The top of the L-shaped plate (17) is fixedly connected with a limiting seat (18), a pressing rod (19) is installed in the limiting seat (18), and the middle part of the pressing rod (19) is rotatably connected with the limiting seat (18) through a limiting pin.

6. A piercing mechanism according to claim 5, wherein: The bottom of the L-shaped plate (17) is fixedly installed with a supporting seat (20), the supporting seat (20) is rotatably connected with the two sides of a gas cylinder (22) through a limiting shaft (21), and the output end of the gas cylinder (22) is rotatably connected with the bottom of the pressing rod (19) through a connecting pin.

7. A piercing device characterized by: The punching mechanism comprises the punching mechanism of any one of claims 1-6.

Images