CN210423544U

CN210423544U - Novel press machine buffer mechanism

Info

Publication number: CN210423544U
Application number: CN201921534691.8U
Authority: CN
Inventors: 赖斌
Original assignee: Sichuan Jinguan Electronic Machinery Co Ltd
Current assignee: Sichuan Jinguan Electronic Machinery Co Ltd
Priority date: 2019-09-16
Filing date: 2019-09-16
Publication date: 2020-04-28
Anticipated expiration: 2029-09-16

Abstract

The utility model discloses a novel press buffer gear, including cylinder and piston rod and the buffering subassembly of setting in the cylinder, piston rod one end stretches out the cylinder and is fixed with the drift, processing has two at least installing ports that communicate with the cylinder inner chamber on the outer wall of cylinder one end, and installing port department is sealed to have the end cover, the quantity of buffering subassembly equals with the quantity of installing port, and it is inboard that singly organizes the end cover that buffering subassembly correspondence was installed in single installing port department, processing has the round to be used for extrudeing all boss of buffering subassembly on the piston rod. The utility model discloses a boss and buffering head's cooperation, when the piston rod stretches out, the boss forms the extrusion with buffering head, and the extrusion force grow gradually to a invariable scope, can form a stronger buffering effect to the piston rod to prevent that piston rod and piston decline impulsive force are too big, arouse stronger mechanical vibration or collision noise, finally played better vibration/noise reduction effect.

Description

Novel press machine buffer mechanism

Technical Field

The utility model relates to a press technical field, concretely relates to novel press buffer gear.

Background

The press machine is a stamping machine widely used in the metal plastic processing industry, the problems of vibration and noise generated by the press machine can not be effectively solved, and the working environment can only be improved by slowing down or reducing the vibration and the noise. At present, most of solutions are to buffer by additionally arranging an oil inlet pipeline and adopting a hydraulic mode, but although the damping mode has a good damping and noise reducing effect, the structure is complex, the manufacturing cost is high, and the application range is not wide; the other type is provided with a simple buffer mechanism or a simple damping mechanism in the cylinder barrel, has simple design and low cost, and is more suitable for enterprises or processing workshops operating with light cost. However, most of the existing mechanical buffering or shock absorption mechanisms realize shock absorption and buffering by matching buffering materials with elastic elements, and the combination mode is practical, but the shock absorption and noise reduction effects of the mechanisms are still improved.

Disclosure of Invention

An object of the utility model is to provide a novel press buffer gear constitutes and the position relation through the structure of reasonable setting buffering subassembly, can reach better buffering shock attenuation effect.

The utility model aims at realizing through the following technical scheme: a novel press machine buffer mechanism comprises a cylinder barrel, a piston rod and a buffer component which are arranged in the cylinder barrel, one end of the piston rod extends out of the cylinder barrel and is fixed with a punch, the end part of the cylinder barrel is provided with a guide sleeve for keeping the piston rod to slide stably, the outer wall of the cylinder barrel close to one end of the guide sleeve is provided with at least two mounting ports communicated with the inner cavity of the cylinder barrel, the mounting ports are sealed with end covers, the number of the buffer components is equal to that of the mounting ports, a single group of buffer components is correspondingly mounted on the inner side of the end cover at the single mounting port, the buffer component comprises a buffer head, a buffer backing plate and a plurality of buffer springs arranged between the buffer head and the buffer backing plate, the buffer backing plate is fixed on the inner side of the cover plate, the plurality of buffer heads are uniformly distributed around the circumference of the piston rod, and a circle of bosses used for extruding all the buffer heads are processed on the piston rod.

Furthermore, an outward bulge is processed in the middle of the outer ring wall of the boss, an inward recess is processed in the middle of the inner side wall of the buffering head, and a chamfering table used for the boss to pass through is processed at the top of the inner side wall of the buffering head.

Furthermore, the outer side surface of the protrusion is a convex arc surface, and the inner side surface of the recess is a concave arc surface matched with the convex arc surface.

Further, the bottom processing of buffering head inside wall has vertical limiting plate.

The utility model discloses a boss and buffering head's cooperation, when the piston rod stretches out, the boss forms the extrusion with buffering head, and the extrusion force grow gradually to a invariable scope, can form a stronger buffering effect to the piston rod to prevent that piston rod and piston decline impulsive force are too big, arouse stronger mechanical vibration or collision noise, finally played better vibration/noise reduction effect.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

The labels in the figure are: 1-a cylinder barrel; 2-a piston rod; 3, a guide sleeve; 4-a punch; 5-boss; 6, mounting a port; 7-end cap; 8-bolt; 9-a buffer backing plate; 10-a convex ring; 11-a buffer spring; 12-a buffer head; 13-dishing; 14-a limiting plate; 15-chamfering table.

Detailed Description

As shown in fig. 1, the novel press machine buffer mechanism provided by this embodiment includes a cylinder 1, and a piston rod 2 and a buffer assembly which are arranged in the cylinder 1, wherein one end of the piston rod 2 is connected to a piston (not shown), and the other end of the piston rod extends out of the cylinder 1 and is fixed with a punch 4, and a guide sleeve 3 for keeping the piston rod 2 to slide stably is nested at the end of the cylinder 1. In the embodiment, four mounting ports 6 communicated with an inner cavity of the cylinder barrel 1 are processed on the outer wall of one end of the cylinder barrel 1 close to the guide sleeve 3, the four mounting ports 6 are uniformly distributed around the circumference of the cylinder barrel 1, an end cover 7 is fixedly sealed at each mounting port 6 through a bolt 8, the number of the buffer assemblies is four, each buffer assembly is correspondingly arranged on the inner side of the end cover 7 at a single mounting port 6, specifically, each buffer assembly comprises a buffer head 12, a buffer backing plate 9 and three buffer springs 11 arranged between the buffer head 12 and the buffer backing plate 9, the buffer backing plate 9 is fixed on the inner side of the cover plate 7 through bolts, the three buffer springs 11 are vertically arranged from top to bottom, the buffer backing plate 9 is made of stainless steel, three convex rings 10 are formed on the inner side wall of the buffer backing plate 9, one ends of the buffer springs 11 extend into inner holes of the convex rings 10 and are welded and, the other end extends into an inner hole processed outside the buffer head 12 and is welded and fixed, thereby ensuring better elastic restoring force between the buffer head 12 and the buffer backing plate 9.

In order to ensure that the piston rod 2 has a good buffering effect when extending out, the four buffering heads 12 are uniformly distributed around the circumference of the piston rod 2, namely the four buffering heads 12 are arranged around a circle, and a circle of bosses 5 used for extruding the inner side walls of all the buffering heads 12 are machined on the piston rod 2. After piston rod 2 stretched out, boss 5 descends fast, and the bottom of boss 5 contacts the top of buffer head 12 earlier and forms the extrusion, and along with piston rod 2 continues to extend, the extrusion force increases gradually, forms a better buffering effect, and when boss 5 descends to buffer head 12 bottom, piston rod 2 extended in place, and in this process, buffer head 12 formed more stable extrusion force to boss 5 always to guarantee a better buffering effect.

In order to improve the extrusion smoothness between the boss 5 and the cushion head 12, the cushion head 12 is made of wear-resistant alloy, the middle part of the outer ring wall of the boss 5 is provided with an outward bulge, preferably, the outer side surface of the bulge is a smooth convex arc surface, an inward recess 13 is processed in the middle of the inner side wall of the buffer head 12, the inner side surface of the recess 13 is a smooth concave arc surface matched with the convex arc surface, the top of the inner side wall of each buffer head 12 is provided with a chamfering platform 15 for the boss 5 to pass through, the surface of each chamfering platform 15 is a smooth inclined plane, the chamfering platforms 15 of the four buffer heads 12 form a bell mouth shape, so as to facilitate the boss 5 to pass and form extrusion, a vertical limit plate 14 is processed at the bottom of the inner side wall of the buffer head 12, so as to prevent the boss 5 from separating from the extrusion of the buffer head 12 after running in place and reduce the buffer effect of the running shape of the piston rod 2 to the tail section.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any modification and replacement based on the technical solution and inventive concept provided by the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a novel press buffer gear, includes cylinder and sets up piston rod and the buffering subassembly in the cylinder, its characterized in that: the improved cylinder is characterized in that one end of the piston rod extends out of the cylinder and is fixed with a punch, the end part of the cylinder is provided with a guide sleeve used for keeping the piston rod stably sliding, at least two mounting ports communicated with an inner cavity of the cylinder are processed on the outer wall of one end, close to the guide sleeve, of the cylinder, an end cover is sealed at the mounting ports, the number of the buffering assemblies is equal to the number of the mounting ports, a single group of buffering assemblies is correspondingly mounted on the inner side of the end cover at a single mounting port, each buffering assembly comprises a buffering head, a buffering base plate and a plurality of buffering springs arranged between the buffering head and the buffering base plate, the buffering base plate is fixed on the inner side of the cover plate, the buffering heads are uniformly distributed around the circumference of.

2. The novel press cushioning mechanism of claim 1, characterized in that: the middle part of the outer ring wall of the boss is provided with an outward bulge, the middle part of the inner side wall of the buffer head is provided with an inward recess, and the top of the inner side wall of the buffer head is provided with a chamfer platform for the boss to pass through.

3. The novel press cushioning mechanism of claim 2, characterized in that: the convex outer side surface is a convex arc surface, and the concave inner side surface is a concave arc surface matched with the convex arc surface.

4. The novel press cushioning mechanism of claim 2, characterized in that: and a vertical limiting plate is processed at the bottom of the inner side wall of the buffer head.