CN207205345U

CN207205345U - Punching machine clamp

Info

Publication number: CN207205345U
Application number: CN201720918892.2U
Authority: CN
Inventors: 管菊花
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-07-27
Filing date: 2017-07-27
Publication date: 2018-04-10
Anticipated expiration: 2027-07-27

Abstract

It the utility model is related to the technical field of perforating press, specially punching machine clamp, including external mold and internal model, external mold is provided with the positioning hole for being used for installing internal model, positioning hole includes macropore and aperture, and macropore connects with aperture, and described internal model includes the big end being adapted to macropore and the small end being adapted to aperture, big end is connected with small end, and internal model is provided with the through hole for penetrating big end and small end；Also include at least one set of buffer unit.The utility model is simple in construction, practical.

Description

Punching machine clamp

Technical field

It the utility model is related to perforating press technical field, specially punching machine clamp.

Background technology

Perforating press is used for the punching on steel plate, and traditional perforating press, during punching, its fixture is often because bearing Incessantly pressure, internal model is caused to be cracked, meanwhile, during punching, internal model is often moved traditional perforating press, causes There is deviation in the position of punching, and then reduces machining accuracy.

Utility model content

In view of the deficienciess of the prior art, the purpose of this utility model is the perforating press folder for providing a kind of anti-cracking Tool.

To achieve the above object, the utility model provides following technical scheme：Punching machine clamp, including external mold and interior Mould, external mold are provided with the positioning hole for being used for installing internal model, and positioning hole includes macropore and aperture, and macropore connects with aperture, described Internal model includes the big end being adapted to macropore and the small end being adapted to aperture, big end are connected with small end, and internal model is provided with Penetrate the through hole of big end and small end；Also include at least one set of buffer unit.

Further, described buffer unit include be located at big end outer wall first annular groove, be located on external mold and with it is big The mounting hole of hole connection, is sequentially provided with steel ball, spring and the first screw on described mounting hole.

Further, described mounting hole is provided with the annular protrusion being adapted to steel ball surface.

Further, when internal model loads external mold, spring is in tensioner state.

Further, described buffer unit is four groups, and square arrangement.

Further, the described curved shape of first annular groove, and be adapted to steel ball surface.

Further, in addition to positioner, positioner includes being located in small end the second annular groove, it is located on external mold And the threaded locating hole connected with aperture, the second screw is connected with threaded locating hole.

Contrast the deficiencies in the prior art, beneficial effect caused by technical scheme provided by the utility model：1. positioning hole Including macropore and aperture, macropore connects with aperture, and internal model includes the big end being adapted to macropore and the small end being adapted to aperture, Big end is connected with small end so that internal model is just absorbed in the positioning hole of external mold, and then prevents the position of internal model in the horizontal Shift, ensure machining accuracy.2. buffer unit described in includes being located at the first annular groove of big end outer wall, is located at external mold Mounting hole that is upper and connect with macropore, steel ball, spring and the first screw, internal model loading external mold are sequentially provided with described mounting hole When, steel ball is just caught in first annular groove, and spring is in tensioner state, and then causes internal model diametrically to play the work of buffering With, prevent internal model from being collided in the case where bearing high pressure with external mold and cause the phenomenon of cracking to occur, while can be according to hole Size, the application pressure of drill bit, the elastic force of spring can be adjusted by the first screw, and then adjust the dynamics of buffering.3 institutes The curved shape of first annular groove stated, and be adapted to steel ball surface, by above-mentioned design, steel ball is just caught in the first deep-slotted chip breaker It is interior, the effect of positioning internal model is also played, prevents internal model from shifting in the vertical, further ensures that machining accuracy；In order to enter One step prevents internal model from shifting in the vertical, and the utility model also includes positioner, and positioner includes being located at small end On the second annular groove, the threaded locating hole that is located on external mold and is connected with aperture, be connected with the second screw in threaded locating hole, Pass through above-mentioned design so that the positioning of internal model in the vertical is played second and insured again, ensures machining accuracy.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model.

Fig. 2 is the structural representation of external mold.

Fig. 3 is the structural representation of internal model.

Fig. 4 is structural representation of the buffer unit in Fig. 2 on A-A1 directions.

Embodiment

Reference picture 1- Fig. 4 is described further to the utility model.

Punching machine clamp, including external mold 1 and internal model 2, external mold 1 are provided with the positioning hole for being used for installing internal model 2, positioning hole bag Include macropore 11 and aperture 12, macropore 11 connects with aperture 12, described internal model 2 include the big end 21 that is adapted to macropore 11 and with The small end 22 that aperture 12 is adapted to, big end 21 are connected with small end 22, and internal model 2, which is provided with, penetrates big end 21 and small end 22 Through hole；Also include at least one set of buffer unit.

Positioning hole includes macropore 11 and aperture 12, and macropore 11 connects with aperture 12, and internal model 2 is big including being adapted to macropore 11 End 21 and the small end 22 being adapted to aperture 12, big end 21 are connected with small end 22 so that internal model 2 is just absorbed in external mold 1 Positioning hole in, and then prevent the position of internal model 2 from shifting in the horizontal, ensure machining accuracy.

Further, described buffer unit includes being located at the first annular groove 31 of the big outer wall of end 21, is located on external mold 1 And the mounting hole 32 connected with macropore 11, steel ball 33, the screw 35 of spring 34 and first are sequentially provided with described mounting hole 32, it is interior When mould 2 loads external mold 1, steel ball 33 is just caught in first annular groove 31, and spring 34 is in tensioner state, and then causes internal model 2 Diametrically play a part of buffering, prevent internal model 2 from being collided in the case where bearing high pressure with external mold 1 and cause cracking Phenomenon occurs, at the same can be according to hole size, the application pressure of drill bit, the bullet of spring 34 can be adjusted by the first screw 35 Power, and then adjust the dynamics of buffering.

Further, the annular protrusion 36 being adapted to the surface of steel ball 33 is provided with the aperture inwall of the mounting hole 32, is passed through The design of annular protrusion 36, and then the position of steel ball 33 is limited, prevent steel ball 33 from ejecting.

Further, described buffer unit is four groups, and square arrangement so that when internal model 2 buffers, uniform force.

Further, described 31 curved shape of first annular groove, and be adapted to the surface of steel ball 33, pass through above-mentioned design, steel Ball 33 is just caught in first annular groove 31, is also played the effect of positioning internal model 2, is prevented internal model 2 from occurring in the vertical partially Move, further ensure that machining accuracy.

In order to further prevent internal model 2 from shifting in the vertical, the utility model also includes positioner, positioner It is fixed including the second annular groove 41 being located in small end 22, the threaded locating hole for being located on external mold 1 and being connected with aperture 12, screw thread Position is connected with the second screw 42 on hole, by above-mentioned design, when internal model is arranged on external mold, screws the second screw 42, makes the The part of two-screw 42 is stretched into the second annular groove so that the positioning of internal model 2 in the vertical is played second and insured again, ensures processing essence Degree.

Preferred embodiment of the present utility model is the foregoing is only, not limiting the utility model, the skill of this area Art personnel carry out common variations and alternatives in the range of technical solutions of the utility model should all be included in guarantor of the present utility model In the range of shield.

Claims

1. punching machine clamp, it is characterised in that：Including external mold and internal model, external mold is provided with the positioning hole for being used for installing internal model, fixed Position hole includes macropore and aperture, and macropore connects with aperture, and described internal model includes the big end being adapted to macropore and fitted with aperture The small end matched somebody with somebody, big end are connected with small end, and internal model is provided with the through hole for penetrating big end and small end；Also include at least one Group buffer unit.

2. punching machine clamp according to claim 1, it is characterised in that：Described buffer unit includes being located at outside big end The first annular groove of wall, the mounting hole for being located on external mold and being connected with macropore, steel ball, spring are sequentially provided with described mounting hole With the first screw.

3. punching machine clamp according to claim 2, it is characterised in that：Described mounting hole is provided with and fitted with steel ball surface The annular protrusion matched somebody with somebody.

4. punching machine clamp according to claim 2, it is characterised in that：When internal model loads external mold, spring is in tensioner shape State.

5. punching machine clamp according to claim 1 or 2, it is characterised in that：Described buffer unit is four groups, and in just Square arrangement.

6. punching machine clamp according to claim 2, it is characterised in that：The described curved shape of first annular groove, and with Steel ball surface is adapted to.

7. punching machine clamp according to claim 1, it is characterised in that：Also include positioner, positioner includes setting The second annular groove in small end, the threaded locating hole for being located on external mold and being connected with aperture, it is connected with threaded locating hole Second screw.