CN104384306A

CN104384306A - Recoil square die

Info

Publication number: CN104384306A
Application number: CN201410684753.9A
Authority: CN
Inventors: 庄俊林; 郭文学; 沈鹏; 连实慧
Original assignee: Henan Aerospace Precision Machining Co Ltd
Current assignee: Henan Aerospace Precision Machining Co Ltd
Priority date: 2014-11-25
Filing date: 2014-11-25
Publication date: 2015-03-04
Anticipated expiration: 2034-11-25
Also published as: CN104384306B

Abstract

The invention discloses a recoil square die. The recoil square die comprises an upper die and a lower die, the lower die is provided with an upward punch, a fixing device for fixing a processed bolt is arranged above the punch in a guide sliding mode, a vertical through bolt mounting passage corresponding to the upside and downside of the punch is formed in the fixing device, the bolt mounting passage is provided with an upper opening for holding the bolt, a lower outlet for enabling the lower end of the bolt to come out of the bolt mounting passage and contact with the punch to perform punching, and a limit structure having thrust fit with the processed bolt, an elastic support is arranged between the fixing device and the lower die, when using, the upper die and lower die move relatively, and the upper die compresses the head of the processed bolt on the limit structure and moves towards the punch to perform punching. According to the recoil square die, because the bolt is installed from the upper opening of the bolt mounting passage, there is a certain distance between the bolt and the upper die, the bolt can be installed or taken out conveniently, and accordingly the material change time is greatly saved, and the processing efficiency is improved.

Description

A kind of recoil side mould

Technical field

the present invention relates to diel field, particularly relate to a kind of recoil side's mould for the processing of the foot section brought six side class bolt.

Background technology

In traditional tail band, the bolt series products of six sides generally adopts special diel to carry out punching press, hexagonal hole mould is rushed as the notification number Chinese utility model patent that is CN202963187 discloses the efficient bolt of a kind of titanium alloy, this mould comprises, counterdie, patrix is fixed with drift, relatively with the drift of patrix on counterdie be fixed with processed bolt, the afterbody of processed bolt upwards, the lead for leading to upper and lower mould is provided with in four positions, limit of drift and processed bolt between upper and lower die plate, in use, patrix drives drift move down and carry out punching press to processed bolt.Be unenclosed construction between the upper and lower plank of square hole mould in this punching, when the hard-wired precision of processed bolt does not reach installation requirement and collides in punch process, drift very easily collapses broken and sputters out, very large potential safety hazard is brought to staff, on the other hand, the counterdie of this mould is provided with counterdie fixed head, processed bolt tail upward, head is fixedly mounted on counterdie fixed head down, after punching processing completes, take out processed bolt very inconvenient, increase the time of renewal part, working (machining) efficiency is affected.

Summary of the invention

The object of the present invention is to provide recoil side's mould that a kind of processed bolt conveniently picks and places.

Recoil side of the present invention mould adopts following technical scheme: a kind of recoil side mould, be included in the upper die and lower die of above-below direction relative motion, described counterdie is provided with drift upward, the top of the described drift slidable fit that leads in the vertical direction has fixture for fixing processed bolt, passage installed by the bolt that described fixture is provided with the up/down perforation corresponding up and down with drift, this bolt is installed passage and is had the upper shed loaded for bolt, for make the lower end of bolt expose bolt install passage and and punch. contact carry out the lower outlet of punching press and the position limiting structure in a downward direction for coordinating with processed bolt thrust, resiliency supported is provided with between described fixture and counterdie, during upper and lower mould relative motion, the head of processed bolt is first pressed on position limiting structure and carries out punch process to moving near the direction of drift again by patrix.

Described fixture comprises for drift being located at interior protective sleeve and being located at the positioning sleeve being used for set bolt on protective sleeve; the bolt mounting holes that passage is the upper downward-extension be located on positioning sleeve installed by described bolt; this bolt mounting holes has the inner peripheral surface for matching with the external diameter of processed bolt and the block edge for coordinating with the head nut lower surface block of bolt; described upper shed is the aperture, upper end of bolt mounting holes; described under shed is the aperture, lower end of bolt mounting holes, and described position limiting structure is the block edge on bolt mounting holes.

Described positioning sleeve and protective sleeve releasable connection.

Described counterdie is fixed with the fixing die body of downward-extension; described fixing die body has to coincide with the inner peripheral surface of the protective sleeve outer peripheral face coordinated and the adpting flange be fixedly connected with counterdie; described counterdie is slidably matched by fixing die body and the guiding of the protective sleeve guiding realizing counterdie and protective sleeve that is slidably matched, and described drift passes fixes die body and the upper surface of stretching out fixing die body.

Described resiliency supported comprises the cyclic spring block on the outer peripheral face being sheathed on fixing die body; the upper surface of described cyclic spring block and the lower surface of protective sleeve in a downward direction thrust coordinate, and the lower surface of cyclic spring block and the upper surface of adpting flange in an upward direction thrust coordinate.

Described resiliency supported also comprises the spring buffer mechanism be provided with below counterdie; described spring buffer mechanism comprises support spring and is pressed in the upper lower platen at the upper and lower two ends of support spring; described support spring and upper lower platen are slidedly assemblied in counterdie on relatively-stationary support bar in the vertical direction, and what top, the upper surface of described top board was pressed with downward-extension is upwards supported on the push rod of protective sleeve lower surface through counterdie, adpting flange and cyclic spring block successively.

The upper surface of described fixing die body is provided with the groove that inner peripheral surface offers thread segment, the axis of described groove and the dead in line of drift, be installed with the positioning sleeve for aligning punch in groove, the body of rod of described drift be provided with upper and lower end face respectively with positioning sleeve and the spacing outward flange coordinated of fixing die body block.

The drift of recoil side of the present invention mould to be positioned on counterdie and upward, the top guiding slidable fit of drift has the fixture for fixing processed bolt, passage installed by the bolt that fixture is provided with the up/down perforation corresponding up and down with drift, this bolt is installed passage and is had the upper shed loaded for bolt, for make the lower end of bolt expose bolt install passage and and punch. contact carry out the lower outlet of punching press and the position limiting structure in a downward direction for coordinating with processed bolt thrust, resiliency supported is provided with between fixture and counterdie, the upper and lower mould relative motion in use of this mould, the head of processed bolt is first pressed on position limiting structure and carries out punch process to moving near the direction of drift again by patrix, the upper shed of installing passage from bolt due to bolt loads, and also have certain distance between bolt and patrix, load or take out bolt very convenient, this just saves the time of reloading greatly, improve working (machining) efficiency.

Further, fixture comprises drift is located at interior protective sleeve, once there is drift collision to collapse broken accident in Punching Process, protective sleeve can prevent fragment from sputtering out and hurt staff, there is higher security, positioning sleeve is by the bolt mounting holes set bolt identical with processed bolt external diameter simultaneously, the upper end of bolt mounting holes is provided with the block edge for coordinating with the nut block of processed bolt, by up big and down small bolt mounting holes, processed bolt is positioned, after processed bolt punching completes, bolt directly can take out from the top of bolt mounting holes and solve the problem that processed bolt takes out inconvenience, substantially increase working (machining) efficiency.

Further, bolt mounting holes is positioned on positioning sleeve 1, positioning sleeve 1 and protective sleeve releasable connection, when processing the bolt of different model, only positioning sleeve 1 need be removed from protective sleeve, changing the positioning sleeve be applicable to.

Further; resilient snubber is provided with between protective sleeve and counterdie; protective sleeve also in an upward direction pushing tow be combined with lower end top be pressed in the structural push rod of spring buffer; when downward punching press; resilient snubber and spring buffer mechanism are compressed absorption energy; after punching press completes, resilient snubber resets with spring buffer mechanism and drift is separated with processed bolt, automatically completes the material returned.

Accompanying drawing explanation

Fig. 1 is the structural representation of a kind of side of recoil of the present invention Die Embodiment.

Detailed description of the invention

The embodiment of recoil side of the present invention mould: as shown in Figure 1, comprise patrix 15 and the counterdie 8 of corresponding setting up and down, counterdie 8 is fixed on work bench of punch press, the lower surface of patrix 15 is provided with pressure head 16, patrix 15 can carry out punching press action downwards under the driving of punch driving device, counterdie 8 is fixed with drift 2, drift 2 comprises for the punch-out and the support bar portion 20 be positioned at below punch-out with processed threaded bolt contacts punching press, drift 2 is fixed on counterdie 8, slidable fit that counterdie 8 also leads in the vertical direction has fixture, passage installed by the bolt for construction bolt that fixture is provided with up/down perforation, it is corresponding with drift about 2 that passage installed by this bolt, and there is upper shed and under shed, upper shed is for loading bolt, under shed is used for stretching out for bolt and contacting with drift 2 when punching press, resiliency supported is provided with between fixture and counterdie 8, in the present embodiment, fixture comprises protective sleeve 5 and positioning sleeve 1 provided thereon, in drift 2 is located at by protective sleeve 5, protective sleeve 5 arranges in the top position corresponding to drift 2 positioning sleeve 1 being used for fixing processed bolt.Recoil side's mould of this embodiment in use, processed bolt is arranged in positioning sleeve 1, drive unit drives patrix 15 to be with dynamic head 16 to move downward, pressure head 16 pushing tow positioning sleeve 1 moves downward and makes the processed bolt in positioning sleeve 1 contact with drift 2 and complete punching press, in whole punching course, drift 2 is covered on inside by protective sleeve 5 all the time, even if occur in punch process drift collapse broken also can protected cover 5 limit to fly out and hurt sb.'s feelings, reduce potential safety hazard when staff works, positioning sleeve 1 comprises correspondence and is located at bolt mounting holes 103 above drift 2, in the present embodiment, bolt mounting holes is bolt and installs passage, the internal diameter of bolt mounting holes 103 and the external diameter of processed bolt match, the upper end of bolt mounting holes 103 be provided with for the nut of processed bolt head in a downward direction the block that coordinates of block along 102, processed like this bolt can load in bolt mounting holes easily, to be arranged in bolt mounting holes 103 and moved downward punching press with protective sleeve 5 under the pushing tow of pressure head 16 after at processed bolt, can take out from the top of bolt mounting holes 103 easily, save a large amount of reloading the time, improve working (machining) efficiency, preferably, protective sleeve 5 and positioning sleeve 1 releasable connection, the upper end of protective sleeve 5 is provided with the plug-in opening 50 coordinated that to coincide with the outer peripheral face of positioning sleeve 1, positioning sleeve 1 to be inserted in this plug-in opening 50 and the block convex edge 101 be provided with by its periphery and plug-in opening 50 in a downward direction thrust coordinate, certainly, in other embodiments, in order to ensure that positioning sleeve 1 can not be separated with protective sleeve easily, plug-in opening can be set to screwed hole, the outer peripheral face of positioning sleeve 1 can be provided with thread segment, by thread segment releasable connection on the protective sleeve.Positioning sleeve 1 and protective sleeve releasable connection, when needing to carry out punching to the bolt of different model, only need change the positioning sleeve 1 matched with processed Bolt sizes, easy to operate, preferably, counterdie 8 realizes being slidably matched with the guiding of protective sleeve 5 by fixing die body 7 fixed thereon, wherein fix die body 7 and there is cylindrical bodies, the lower end of cylindrical bodies is provided with the adpting flange 70 for being connected with counterdie 8, fixing die body 7 is fixed on counterdie 8 by the attachment screw 9 of spinning in the connecting hole of adpting flange 70 by counterdie 8, fixing die body 7 and counterdie 8 are coaxially provided with the through hole supplying the support bar portion 20 of drift 2 to pass respectively, protective sleeve 5 has the internal face coordinated that to coincide with the outer peripheral face of fixing die body 7, protective sleeve 5 to be slidedly assemblied on fixing die body 7 and processed bolt fixing on protective sleeve 5 is aimed at drift 2, the lower end of protective sleeve 5 is provided with and turns edge 51 outward, turn edge outward 51 corresponding with the adpting flange 70 of fixing die body 7, and the cylinder of fixing die body 7 is arranged with the resilient snubber 6 turned edge between 51 and adpting flange 70 outward, resilient snubber 6 is annular, when protective sleeve 5 moves downward with patrix 15, the resilient snubber 6 turned edge outward between 51 and adpting flange 70 can be avoided the impact of protective sleeve and fixing die body and store certain energy, make punch process more steady, noise can also be reduced, preferably, the position that counterdie 8 is stretched out in the support bar portion 20 of drift 2 is provided with spring buffer structure, this spring buffer structure comprises top board 121 and lower platen 122, on, lower platen is respectively equipped with passing for confession support bar portion 20 and the guiding connecting hole be slidably matched with its guiding of downward-extension, upper lower platen is installed on the lower end in support bar portion 20, and be provided with buffer spring 11 between two pressing plates, the two ends of buffer spring 11 are pushed up respectively and are pressed on two opposite faces of lower platen, support bar portion 20 is installed with for coordinating with lower platen 122 thrust in a downward direction and limiting the stop nut 13 of the axial location of lower platen 122 in support bar portion 20 in the below of lower platen 122, counterdie 8, adpting flange 70 and resilient snubber 6 are respectively equipped with the through hole of the coaxial correspondence of downward-extension, push rod 14 is coated with in this through hole, the upper end of push rod 14 with turn edge outward 51 contact and by turn edge outward 51 lower surface in an upward direction block coordinate, the top, upper end of push rod 14 is pressed on the upper surface of top board 121, when protective sleeve 5 carries out ramming motion downwards with pressure head 16, the outer 51 pushing tow push rods 14 that turn edge of protective sleeve 5 lower end move downward, the top board 121 that push rod 14 promotes spring buffer mechanism moves downward and extrusion spring 11 makes it compress, buffering plays to punch process further in spring buffer mechanism, make its whole punch process more steady, adopt spring buffer mechanism can store more energy simultaneously, after punching terminates, the energy that resilient snubber 6 and spring buffer mechanism store can discharge automatically, namely a bounce is upwards had to protective sleeve 5, this bounce promotes protective sleeve and drives positioning sleeve 1 to move upward, thus drift 2 is separated with processed bolt, realize automatic material returning, change processed bolt for next step and more convenience is provided, on the other hand, the stop nut 13 of support bar portion 20 lower end spinning can up-down adjustment, the pre compressed magnitude of buffer spring 11 can be controlled by its up-down adjustment, pre compressed magnitude is larger, spring buffer mechanism is larger to the bounce of protective sleeve when the material returned, otherwise, then bounce is less, the control to automatic material returning can be realized by the pre compressed magnitude controlling buffer spring, further, the upper end of the cylindrical bodies of fixing die body 7 is provided with the groove of indent, groove is positioned at the center of cylindrical bodies upper surface and overlaps with punch axis, the internal face of groove is provided with internal thread segment 41, the holder for fixing drift is equipped with by internal thread segment 41 in groove, in the present embodiment, holder comprises drift chuck 3 and die sleeve 4, the middle part of die sleeve 4 is provided with the installing hole for installing drift chuck 3 of downward-extension, the outer peripheral face of die sleeve 4 is provided with the external thread section for coordinating with internal thread segment 41, the upper end of die sleeve 4 is provided with and turns edge 42 outward, the lower surface of 42 that turns edge outward is fitted along contacting with the groove of groove, turn edge outward 42 circumferential edges place circumference be interval with the groove 420 of up/down perforation, groove 420 is convenient to rotate die sleeve 4, can easily by die sleeve 4 spinning in and out from groove, drift chuck 3 is provided with the locating hole passed for the support bar portion of drift of downward-extension, the upper end outer peripheral face of drift chuck 3 is up-small and down-big ladder profile, the locating hole upper end of die sleeve 4 is positioned at the notch cuttype inner peripheral surface of the upper end outer peripheral face block cooperation of drift chuck 3, being coordinated by such block is limited between groove bottom land and die sleeve 4 by drift chuck 3, the lower end of drift chuck 3 is also provided with up-small and down-big interior cascaded surface, support bar portion 20 is provided with outward flange 201 through groove bottom land position, the downside end face of outward flange 201 contacts with the bottom land of groove, upside end face coordinates with the interior cascaded surface of drift chuck 3, drift chuck 3 and fixing die body 7 are by coordinating with the block of the upper and lower both sides of the outward flange in support bar portion end face the position limiting drift respectively, and drift is fixed on counterdie 8.In the present embodiment; by arranging detachable drift chuck and the stationary positioned of die sleeve realization to drift on fixing die body; be convenient to the dismounting of drift; at needs on processed bolt when punching press different size or difform endoporus; take off protective sleeve, rotation die sleeve 4 takes off drift chuck 3 and drift can be extracted out by stop nut 13 from whole mould.

In the present embodiment; passage installed by bolt is the bolt mounting holes be located on positioning sleeve; the upper shed of bolt installation passage is the upper aperture of bolt mounting holes; under shed is the lower aperture of bolt mounting holes; position limiting structure is the block edge of bolt mounting holes upper end, in other embodiments, protective sleeve can not arrange positioning sleeve; and directly offer the perforation supplying the afterbody of bolt to pass on the protective sleeve, the upper end hole of perforation is along being used for coordinating with the nut block of bolt.

In the present embodiment, counterdie and protective sleeve realize guiding by fixing die body and are slidably matched, and in other embodiments, can not arrange fixing die body, and realize by arranging the guide post be slidably matched that to lead with protective sleeve on counterdie.

In the present embodiment, resiliency supported comprises the spring buffer mechanism below resilient snubber and counterdie, in other embodiments, can not arrange spring buffer mechanism.

In the present embodiment, counterdie is fixed, and patrix does active movement and moves downward and realize punching press, in other embodiments, can fix by patrix, and counterdie drives drift to move upward and realizes punching press.

In the present embodiment; the spring of spring buffer mechanism and upper lower platen are threaded onto in the support bar portion of drift; in other embodiments; when the support bar portion of drift is shorter do not spread out of counterdie or drift not support bar portion time, the downward support bar for installing spring and upper lower platen can be set on counterdie.

Recoil side of the present invention mould has higher security in use, meanwhile, when carrying out punching to the afterbody of bolt, changing processed bolt more convenient, greatly saving process time, improve working (machining) efficiency.

Claims

1. recoil side's mould, be included in the upper die and lower die of above-below direction relative motion, it is characterized in that, described counterdie is provided with drift upward, the top of the described drift slidable fit that leads in the vertical direction has fixture for fixing processed bolt, passage installed by the bolt that described fixture is provided with the up/down perforation corresponding up and down with drift, this bolt is installed passage and is had the upper shed loaded for bolt, for make the lower end of bolt expose bolt install passage and and punch. contact carry out the lower outlet of punching press and the position limiting structure in a downward direction for coordinating with processed bolt thrust, resiliency supported is provided with between described fixture and counterdie, during upper and lower mould relative motion, the head of processed bolt is first pressed on position limiting structure and carries out punch process to moving near the direction of drift again by patrix.

2. recoil side according to claim 1 mould, it is characterized in that, described fixture comprises for drift being located at interior protective sleeve and being located at the positioning sleeve being used for set bolt on protective sleeve, the bolt mounting holes that passage is the upper downward-extension be located on positioning sleeve installed by described bolt, this bolt mounting holes has the inner peripheral surface for matching with the external diameter of processed bolt and the block edge for coordinating with the head nut lower surface block of bolt, described upper shed is the aperture, upper end of bolt mounting holes, described under shed is the aperture, lower end of bolt mounting holes, described position limiting structure is the block edge on bolt mounting holes.

3. recoil side according to claim 2 mould, is characterized in that, described positioning sleeve and protective sleeve releasable connection.

4. the recoil side's mould according to claim 1-3 any one; it is characterized in that; described counterdie is fixed with the fixing die body of downward-extension; described fixing die body has to coincide with the inner peripheral surface of the protective sleeve outer peripheral face coordinated and the adpting flange be fixedly connected with counterdie; described counterdie is slidably matched by fixing die body and the guiding of the protective sleeve guiding realizing counterdie and protective sleeve that is slidably matched, and described drift passes fixes die body and the upper surface of stretching out fixing die body.

5. recoil side according to claim 4 mould; it is characterized in that; described resiliency supported comprises the cyclic spring block on the outer peripheral face being sheathed on fixing die body; the upper surface of described cyclic spring block and the lower surface of protective sleeve in a downward direction thrust coordinate, and the lower surface of cyclic spring block and the upper surface of adpting flange in an upward direction thrust coordinate.

6. recoil side according to claim 5 mould; it is characterized in that; described resiliency supported also comprises the spring buffer mechanism be provided with below counterdie; described spring buffer mechanism comprises support spring and is pressed in the upper lower platen at the upper and lower two ends of support spring; described support spring and upper lower platen are slidedly assemblied in counterdie on relatively-stationary support bar in the vertical direction, and what top, the upper surface of described top board was pressed with downward-extension is upwards supported on the push rod of protective sleeve lower surface through counterdie, adpting flange and cyclic spring block successively.

7. recoil side according to claim 4 mould, it is characterized in that, the upper surface of described fixing die body is provided with the groove that inner peripheral surface offers thread segment, the axis of described groove and the dead in line of drift, be installed with the positioning sleeve for aligning punch in groove, the body of rod of described drift be provided with upper and lower end face respectively with positioning sleeve and the spacing outward flange coordinated of fixing die body block.