CN201455939U

CN201455939U - Puncher

Info

Publication number: CN201455939U
Application number: CN2009200752455U
Authority: CN
Inventors: 吴永旭; 张永泉; 彭学斌; 张君辉
Original assignee: Shanghai East Pump Group Co Ltd
Current assignee: Shanghai East Pump Group Co Ltd
Priority date: 2009-07-24
Filing date: 2009-07-24
Publication date: 2010-05-12
Anticipated expiration: 2019-07-24

Abstract

The utility model relates to a puncher. The puncher comprises a puncher shell, wherein the front end of the shell is provided with a slideable punch. The puncher is characterized in that the inside of the shell is provided with a mandril and impact body used for pushing the punch to work, one end of the mandril contacts with the punch, a first pre-tightening spring is sleeved on the outside of the mandril, the other end of the mandril contacts with the impact body, the section of the impact body which contacts with the mandril is provided with a blind hole which is matched with the mandril for impacting, and a second pre-tightening spring is sleeved on outside of the impact body. The utility model can be used for drilling in the machinery manufacturing industry so as to overcome the defect that the punching is laboursome and has low speed by using a hammer or a punch to knock, reduce the labor intensity of the operator, ensure the processing quality and increase the work efficiency.

Description

A kind of piercer

Technical field

The utility model relates to a kind of piercer, and specifically, the utility model relates to a kind of piercer that machine industry is used.

Background technology

In machine industry, often need on part, hole.Line earlier according to the position of line, is carried out the processing in hole then before the boring with drill bit.But need dash a pitting at the central point of line before boring, promptly locating hole helps the drill bit location, prevents that drill bit from skidding on workpiece, and the position in hole is bored partially.Usually people dash (Fig. 1) and one with a sample hammer is knocked this work of finishing, and are about to sample and dash the most advanced and sophisticated position of aiming at line, knock the other end that sample dashes with hammer, form locating hole.Form like this that locating hole is time-consuming, effort and efficient is low.

Wish has a kind of piercer always, but high efficiency, time saving and energy saving the locating hole of getting.

The utility model content

Technical problem to be solved in the utility model is to provide a kind of piercer, dashes and one hammer is knocked the shortcoming that speed when getting locating hole is slow, waste time and energy to overcome with a sample.

Technical problem to be solved in the utility model can be achieved through the following technical solutions:

A kind of piercer, comprise the piercer housing, the housing front end is provided with slidably drift, enclosure interior is provided with push rod and the impact body that promotes drift work, push rod one end and drift touch, and are with first preloading spring on the push rod external diameter, and the other end and the impact body of push rod touch, one section of contacting with push rod of impact body is provided with one and cooperates the blind hole of impacting with push rod, is with second preloading spring on the external diameter of impact body.

Described housing can be made up of clamp body, connector, tail-hood, and clamp body is connected with the connector threaded one end, and tail-hood is threaded with the connector other end.

The openend of described blind hole can be flare.

When adopting technical solutions of the utility model, have following beneficial effect:

1. overcome to dash and knocked that punching is bothersome, slow-footed shortcoming with hammer, sample;

2. reduce operator's labour intensity, guaranteed crudy;

3. improved operating efficiency.

Below in conjunction with the drawings and specific embodiments the utility model is described in further details.

Description of drawings

Fig. 1 is that sample is towards schematic diagram.

View when Fig. 2 does not use for the utility model piercer.

Fig. 3 is the view of the utility model piercer when second spring is compressed to extreme position.

Fig. 4 impacts the view of moment for the utility model piercer.

The specific embodiment

For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with accompanying drawing and specific embodiment, further set forth the utility model.

As shown in Figure 2, a kind of piercer comprises piercer housing 1, and described housing 1 is made up of clamp body 11, connector 12, tail-hood 13; Housing 1 front end is provided with slidably drift 2, and described drift 2 is by the 11 one-tenth matched in clearance of jump ring 3 and clamp body on the drift 2; Housing 1 inside is provided with push rod 5 and the impact body 6 that promotes drift work, push rod 5 one ends and drift 2 touch, be with first preloading spring 4 on the push rod external diameter, the other end of push rod 5 and impact body 6 touch, one section of contacting with push rod 5 of impact body 6 is provided with one and cooperates the blind hole 61 of impacting with push rod 5, is with second preloading spring 7 on the external diameter of impact body 6; Clamp body 11 is connected with connector 12 threaded one ends, and tail-hood 13 is threaded with connector 12 other ends.

The openend of described blind hole is a flare.

Drift 2 can slide in clamp body 11; Jump ring 3 prevents that drift 2 from skidding off from clamp body 11; Between push rod 5 and the connector 12 bigger gap is arranged; First preloading spring 4 outside the push rod 5 guarantee to be in left position at off working state push rod 5, and left end is sagging under the deadweight effect, and as shown in Figure 2, the central shaft b-b ' of push rod 5 and the central shaft a-a ' of piercer are angled; Clamp body 11 is connected with connector 12 threaded one ends, regulates the pressure of first preloading spring 4 by changing screw-in length; Tail-hood 13 is threaded with connector 12 other ends, can regulate the pressure of second preloading spring 7 by changing screw-in length.

During use, hold the tail-hood 13 of piercer, with the scribe point on drift 2 alignment pieces of piercer, firmly pushing forward, drift 2 promotes push rod 5 compressions first preloading spring 4 and moves right, and push rod 5 is aligned position and coaxial with impact body 6 gradually gradually by connector 12 guiding.Meanwhile push rod 5 right-hand members slide on the flare 62 of the left end of impact body 6, and promote impact body 6 and move right, and compress second preloading spring 7.

As shown in Figure 3, second preloading spring 7 is compressed the position that reaches capacity, and stores ceiling capacity down.As shown in Figure 4, continue with force compresses drift 2 this moment again, and push rod 5 and impact body 6 reach coaxial, push rod 5 right-hand members enter in the blind hole 61 of impact body 6 left ends, under the effect of second preloading spring 7, impact body 6 is moved to the left rapidly, and the right-hand member end face of push rod 5 is impacted at 61 ends of blind hole of impact body 6 left ends.Drift 2 is subjected to from just go out a pitting after the impulsive force of push rod 5 on workpiece.

After drift 2 left workpiece, under the effect of first preloading spring 4, drift 2 and push rod 5 were moved to the left, and came back to the state of diagram 2.

More than show and described basic principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

1. a piercer comprises the piercer housing, and the housing front end is provided with slidably drift, it is characterized in that:

Enclosure interior is provided with push rod and the impact body that promotes drift work, push rod one end and drift touch, be with first preloading spring on the push rod external diameter, the other end and the impact body of push rod touch, one section of contacting with push rod of impact body is provided with one and cooperates the blind hole of impacting with push rod, is with second preloading spring on the external diameter of impact body.

2. a kind of piercer according to claim 1 is characterized in that described housing is made up of clamp body, connector, tail-hood, and clamp body is connected with the connector threaded one end, and tail-hood is threaded with the connector other end.

3. a kind of piercer according to claim 1 is characterized in that, the openend of described blind hole is a flare.