CN206578775U

CN206578775U - A kind of hammer for blow cylinder and the blow cylinder including the hammer

Info

Publication number: CN206578775U
Application number: CN201720144819.4U
Authority: CN
Inventors: 蒋春麒; 沈永彪; 唐胜明; 张恩仪; 刘新国
Original assignee: Yanfeng Automotive Interiors Systems Shanghai Co Ltd
Current assignee: Yanfeng Automotive Interiors Systems Shanghai Co Ltd
Priority date: 2017-02-17
Filing date: 2017-02-17
Publication date: 2017-10-24
Anticipated expiration: 2027-02-17

Abstract

The utility model provides a kind of hammer for blow cylinder and the blow cylinder including the hammer.The hammer includes：The Part I and Part II mutually fastened, there is the first axially extending groove on the Part I, there is the second axially extending groove on the Part II, first groove and the second groove are collectively forming the mounting hole also on the centre bore extended along a central shaft, the Part I and Part II simultaneously with relatively described central axis extension；And sequentially pass through the fastener that the Part I mutually fastened and Part II are fixed together by the mounting hole on the Part I and Part II.According to the utility model there is provided a kind of fixed form is reliable, difficult for drop-off, convenient disassembly, fault rate is low, the hammer that reduces part alternative costs and improve production efficiency and the blow cylinder including the hammer.

Description

A kind of hammer for blow cylinder and the blow cylinder including the hammer

Technical field

The utility model is related to blow cylinder field, relate more specifically to a kind of hammer for blow cylinder and including The blow cylinder of the hammer.

Background technology

Blow cylinder is a kind of a kind of special work(developed specifically for the occasion that satisfaction has higher requirements to impulsive force Can cylinder.Operated mark, part punching, blanking such as iron and steel material quality workpiece, be required for higher impulsive force just can be with complete Into this generic operation.

In the production of automotive upholstery, whether working well for slush moulding equipment directly influences equipment downtime rate index. According to inventor's annual statistics of 2014, the downtime of slush moulding equipment accounts for all devices outage rate in a plant area 50.37%, and the failure of the wherein hammer of blow cylinder accounts for larger specific gravity.

A kind of blow cylinder is generally used in the prior art, the piston mainly stretched out including cylinder body, from cylinder body Bar and the hammer connected by piston rod.Wherein, hammer is monolithic construction, and the back side has a centre bore, and outside is circumferentially Uniform to offer three holes, the end that piston rod coordinates with hammer has neck.During installation, first by piston rod from the hammer back side Centre bore insertion, then by three pins respectively along on the outside of hammer three holes insert hammer inside until the pin front end Insert in the neck on piston rod, two back-up rings circumferentially are finally loaded on the outside of hammer, it is just covered in pin So as to prevent pin from deviating from the work of blow cylinder on the outside of the tail end of nail, realized by said structure hammer and piston rod solid Fixed connection.

However, the structure of above-mentioned blow cylinder still has more defect：Due to being point between pin and piston rod neck Contact, contact area is small, and anti-impact force is poor, therefore hammer is easily deviate from from piston rod；Piston rod neck is excessively shallow, easy to wear；Pin Follow closely the clamping force inequality by back-up ring；It is located by connecting between piston rod and hammer using pin, dismounting inconvenience.

Utility model content

The purpose of this utility model is to provide a kind of hammer for blow cylinder and the blow cylinder including the hammer, So as to solve the problem of unreliable, easy to fall off blow cylinder hammer positioning method in the prior art, dismounting inconvenience.

In order to solve the above-mentioned technical problem, the utility model uses following technical scheme：

According to first aspect of the present utility model there is provided a kind of hammer for blow cylinder, the hammer includes：Mutually Have on the Part I and Part II of fastening, the Part I on the first axially extending groove, the Part II With the second axially extending groove, first groove and the second groove are collectively forming the centre bore extended along a central shaft, Also there is the mounting hole of relatively described central axis extension simultaneously on the Part I and Part II；And sequentially pass through The Part I mutually fastened and Part II are fixed together by the mounting hole on the Part I and Part II Fastener.

The Part I and Part II have axially symmetric structure.

The Part II further comprises the top extended from its top, and the top is simultaneously towards described first Divide and extend and abutted with the top of the Part I.

Mounting hole on the Part I and mounting hole on the Part II are symmetrical.

There are four mounting holes respectively, four mounting holes are symmetricly set in two-by-two on the Part I and second The both sides of first groove/or the second groove.

Also there is the banded structure of the protrusion of surface from first groove, the Part II tool on the Part I There is banded structure corresponding with the Part I.

Banded structure on the Part I is collectively forming an annular boss with the banded structure on the Part II.

The fastener includes bolt and spring washer piece.

The blow cylinder of hammer as described above, the punching are included there is provided a kind of according to second aspect of the present utility model Hitting cylinder also includes：Cylinder body, and the piston rod stretched out from the cylinder body, wherein, the end of the piston rod is certainly The centre bore insertion at the hammer back side, the Part I of the hammer is fixedly connected with Part II by fastener.

The end of the piston rod has the neck of a circumferentially extending, and the hammer passes through the Part I and second The annular boss formed and the neck is divided to coordinate spacing.

According to the utility model, the hammer of blow cylinder is fastened by the two parts mutually fastened by screw, on the inside of hammer Annular boss and piston rod neck formation face contact, contact area is big, and anti-impact force is strong, therefore hammer and piston rod fixation side Formula is reliable, and hammer is difficult abjection, and reduces the alternative costs of part；Using screw fixation method, remove and install more It is convenient and swift；Thus the blow cylinder fault rate constituted is low, and the downtime of slush moulding line substantially reduces, and production efficiency is improved.

In a word, the utility model provides that a kind of fixed form is reliable, difficult for drop-off, convenient disassembly, fault rate are low, reduction Part alternative costs and the hammer and its blow cylinder for blow cylinder for improving production efficiency.

Brief description of the drawings

Fig. 1 is the explosive view of hammer according to a preferred embodiment of the present utility model and piston rod；

Fig. 2 is that hammer as shown in Figure 1 assembles the structural representation completed with piston rod.

Embodiment

Below in conjunction with the accompanying drawings, preferred embodiment of the present utility model is provided, and is described in detail, makes to be better understood when Function of the present utility model, feature.

It is the hammer 10 for blow cylinder according to a preferred embodiment of the present utility model as shown in Fig. 1~Fig. 2 With piston rod 30, coordinate fixed hammer 10, therefore cylinder sheet with piston rod 30 because improvement of the present utility model is essentially consisted in Body is not shown.

Monoblock type hammer of the prior art is different from, the hammer 10 is split-type structural, is mainly included：Mutually fasten Part I 1 and Part II 2, and bolt 3 and bullet for Part I 1 and Part II 2 to be fixed together Spring pad 4.Wherein, Part I 1 has the first axially extending groove 11, second on the surface coordinated with Part II 2 Part 2 has the second axially extending groove 21, the first groove 11 and the second groove 21 on the surface coordinated with Part I 1 The centre bore 13 (referring to Fig. 2) extended along a central shaft is collectively forming, for housing piston rod 30.Part I 1 and second Divide on 2 also has vertically extending first mounting hole 12 of opposing pistons bar 30, the second mounting hole 22 simultaneously, and the second mounting hole 22 is Screwed hole.

The first mounting hole 12 on Part I 1 symmetrically and runs through with the second mounting hole 22 on Part II 2.

According to the preferred embodiment, having on Part I 1 has four on four the first mounting holes 12, Part II 2 Second mounting hole 22, four the first mounting holes 12 are symmetricly set in the both sides of the first groove 11, four the second mounting holes 22 two-by-two The both sides of the second groove 21 are symmetricly set in two-by-two.

Part I 1 and Part II 2 have substantially axisymmetric structure, and Part II 2 is preferably included from its top The top 23 extended is held, top 23 extends towards Part I 1 and abutted with the top of Part I 1 simultaneously.

Also there is the banded structure 24 of the protrusion of surface from the second groove 21 with reference to shown in Fig. 1 and Fig. 2, on Part II 2, The Part I 1 has banded structure (not shown) corresponding with Part II 2.When Part I 1 and Part II 2 When fastening as shown in Figure 2, the banded structure on Part I 1 is collectively forming a ring with the banded structure 24 on Part II 2 Shape boss, the annular boss is located at centre bore 13 along between two ends of central shaft.

There is the neck 32 of a circumferentially extending on the end 31 of piston rod 30.

The impact gas of hammer 10 as described above is included there is provided a kind of according to a preferred embodiment of the present utility model Cylinder, blow cylinder also includes：Cylinder body (not shown), and the piston rod 30 stretched out from cylinder body.

During installation, first, the end 31 of piston rod 30 is embedded in the Part II 2 of hammer 10, makes the semi-circular of Part II 2 Boss is fully mated with neck 32 on the end 31 of piston rod 30, then will close the Part I 1 of hammer 10, mutually button Close, until, the annular boss that Part I 1 and Part II 2 are collectively forming is matched somebody with somebody with the neck 32 on the end 31 of piston rod 30 Close spacing, then insert spring shim 4, bolt 3 from the first mounting hole 12 on Part I 1 successively, bolt 3 is from second The second mounting hole 22 divided on 2 stretches out and screwed, and now, hammer 10 forms a fixed connection with piston rod 30.

According to the preferred embodiment, the hammer of blow cylinder is fastened by the two parts mutually fastened by screw, in hammer The annular boss of side is contacted with piston rod neck formation face, and contact area is big, and anti-impact force is strong, therefore hammer is fixed with piston rod Mode is reliable, is difficult abjection；Using screw fixation method, remove and install more convenient；Thus the blow cylinder constituted Fault rate is low, and the downtime of slush moulding line substantially reduces, and production efficiency is largely increased.

Above-described, preferred embodiment only of the present utility model is not limited to scope of the present utility model, this Above-described embodiment of utility model can also make a variety of changes.I.e. every claims according to the present utility model application and Simple, equivalent changes and modifications that description is made, fall within the claims of the utility model patent.This The not detailed description of utility model is routine techniques content.

Claims

1. a kind of hammer for blow cylinder, it is characterised in that the hammer includes：

There is the first axially extending groove, described the on the Part I and Part II mutually fastened, the Part I There is the second axially extending groove, first groove and the second groove are collectively forming what is extended along a central shaft on two parts Also there is the mounting hole of relatively described central axis extension simultaneously on centre bore, the Part I and Part II；And

Mounting hole on the Part I and Part II is sequentially passed through by the Part I mutually fastened and second Divide the fastener being fixed together.

2. hammer according to claim 1, it is characterised in that the Part I and Part II have axial symmetry knot Structure.

3. hammer according to claim 1, it is characterised in that the Part II further comprises extending from its top Top, the top simultaneously towards the Part I extend and abutted with the top of the Part I.

4. hammer according to claim 3, it is characterised in that mounting hole and the Part II on the Part I On mounting hole it is symmetrical and run through.

5. hammer according to claim 4, it is characterised in that the Part I and Part II have four peaces respectively Hole is filled, four mounting holes are symmetricly set in the both sides of first groove/or the second groove two-by-two.

6. hammer according to claim 5, it is characterised in that also have from first groove on the Part I The banded structure of protrusion of surface, the Part II has banded structure corresponding with the Part I.

7. hammer according to claim 6, it is characterised in that the banded structure on the Part I and described second Banded structure on point is collectively forming an annular boss.

8. hammer according to claim 1, it is characterised in that the fastener includes bolt and spring washer piece.

9. a kind of blow cylinder of the hammer including according to any one in the claims 1-8, it is characterised in that institute Stating blow cylinder also includes：Cylinder body, and the piston rod stretched out from the cylinder body, wherein, the end of the piston rod Hold from the centre bore at the hammer back side and insert, the Part I of the hammer is fixedly connected with Part II by fastener.

10. blow cylinder according to claim 9, it is characterised in that the end of the piston rod has a circumferentially extending Neck, the hammer is spacing by annular boss and the neck cooperation of the Part I and Part II formation.