CN206981933U - A kind of positioner and system of processing - Google Patents

Abstract

A kind of positioner and system of processing, belong to field of machining.Positioner, for being positioned to a breach in mountain shape sample, to be processed to a breach in mountain shape.Positioner includes pedestal, work rest and stopper.Pedestal is connected with processing the process equipment of a breach in mountain shape sample.Work rest has the limit space for accommodating a breach in mountain shape sample.Stopper includes keeper and clamping element, to carry out clamping restriction to sample.Positioner can realize preferable positioning function, so as to improve positional accuracy.

Description

A kind of positioner and system of processing

Technical field

Field of machining is the utility model is related to, in particular to a kind of positioner and system of processing.

Background technology

In the metal material actual application such as aluminium alloy, steel, titanium alloy, in order to meet that material property and safety should It is required that, it is necessary to the toughness properties of material resistance Crack Extension fracture are tested and assessed, to characterize material prevention The ability of Crack Extension, so as to measure the quality of toughness of material.

, it is necessary to meet that material crack tip has sufficiently high answer during fracture toughness test is carried out to metal material Power concentration effect.Therefore, before being tested, it is necessary first to sample is slotted by machine-tooled method and (prepares and splits The main part of line), sharp fatigue crack is then also precast on the basis of fluting by fatigue machine, it is tough to meet to be broken The needs of property experimental test.

According to national standard GB/T1-7 and American Standard ASTM E-2 requirements, fracture toughness fluting breach has three kinds of forms, is straight respectively Logical v notch v, envelope v notch v, a breach in mountain shape.Can be straight for first two fluting breach (straight-through v notch v, envelope v notch v) Connect and be processed using traditional linear cutting equipment.The third fluting breach --- a breach in mountain shape (breach root with angle requirement Portion and sample upper and lower surface are into 90 degree or 120 degree of two kinds of Notch angle forms), can not be right using traditional linear cutter scheme Prepared by fluting breach, cause many practitioners using the preparation completed on milling machine to a breach in mountain shape.

But process tool form and precision are limited during due to being prepared using milling machine, processing cost is on the one hand added, it is another The fluting precision of aspect a breach in mountain shape hardly results in guarantee, and milling machine can not be used even for some fluting less workpiece of size It is processed.In addition, fluting breach precision is most important to follow-up prefabricated fatigue crack precision, fracture toughness is directly influenced Final detection result, therefore using the above method processing material, examine, judge material it is actual resistance Crack Extension be broken Toughness properties lose reliability.

Above is common problem in a breach in mountain shape fracture toughness specimen preparation process, it is therefore necessary to lacked to chevron The preparation method of mouthful fracture toughness workpiece is improved and perfect.

Utility model content

In first aspect of the present utility model, there is provided a kind of positioner, effectively realize the accurate of a breach in mountain shape sample Positioning, ensure that machining accuracy, so as to the ability of accurate characterization material Anticrack, be product of metal material application and Security evaluation provides reliable guarantee.

In second aspect of the present utility model, there is provided a kind of system of processing, can be achieved to set using traditional linear cutter It is standby a breach in mountain shape workpiece accurately to be prepared and varied angle processing, it is ensured that the accuracy of fracture toughness testing result and reliably Property.

What the utility model was realized in：

A kind of positioner, for being positioned to a breach in mountain shape sample, to be processed to a breach in mountain shape.

Positioner includes：

Pedestal, pedestal have first connecting portion and second connecting portion, and first connecting portion has joint face, and joint face is constructed It is connected into the process equipment with processing a breach in mountain shape sample, second connecting portion has inclined plane；

Work rest, work rest are connected to inclined plane, and work rest has relative the first wall and the second wall, the first wall and second Wall limits the limit space for accommodating a breach in mountain shape sample, and limit space deviates from inclined plane；

Stopper, stopper include keeper and clamping element, and keeper is respectively connecting to the first wall and the second wall and closed The part of limit space, clamping element be connected to the second wall and can opposite first walls motion, clamping element, keeper and the first wall It is common to limit piece-holder space.

In some preferable examples, pedestal has the joint face contacted with process equipment, and inclined plane opposing connecting surface is in 45 ° or 60 ° inclinations.

In some preferable examples, clamping element has the contact site being mutually matched and sets threaded connecting portion, even Socket part is threadedly connected to the second wall, and contact site is connected to the end of connecting portion, piece-holder space by contact site, keeper and First wall limits jointly.

In some preferable examples, contact site has the contact surface contacted with a breach in mountain shape sample, the area of contact surface More than the area of connecting portion.

In some preferable examples, contact site is rotatably connected to connect using the axial direction of connecting portion as rotary centerline Portion.

In some preferable examples, clamping element also includes columnar member, and contact site is connected to connecting portion by columnar member, made Contact site can be along the axially free gyration of columnar member.

In some preferable examples, keeper is connected to work rest by least two connectors, and at least two connect Fitting is configured to the relative position being separately adjusted to alter between keeper and work rest.

In some preferable examples, work rest is provided with multiple working trajectory grooves, and working trajectory groove is configured to process Equipment processes the motion path of a breach in mountain shape sample.

In some preferable examples, work rest has the second back chipping groove in limit space, the second back chipping groove quilt It is configured to when a breach in mountain shape sample is defined to piece-holder space, the root of a breach in mountain shape sample can be freely actively by cloth Put in the second back chipping groove.Pedestal is provided with the first back chipping groove, and the first back chipping groove is configured to when work rest is connected to processing During equipment, the protuberance of process equipment freely can be actively disposed in the first back chipping groove.

A kind of system of processing, including process equipment, positioner as the aforementioned.

The beneficial effect of such scheme：

In positioner and system of processing, more particularly to a breach in mountain shape preparation process that the utility model embodiment provides Precise alignment and it is accurately positioned, lacking with angled a breach in mountain shape can not be processed with traditional linear cutting equipment in the past by overcoming Fall into, on the basis of machining accuracy and physical dimension is ensured, realize the preparation of a breach in mountain shape fracture toughness sample, can be effective Ensure the accuracy of fracture toughness sample detection result, belong to fracture toughness sample preparation and method and technology field.

Brief description of the drawings

, below will be to required use in embodiment in order to illustrate more clearly of the technical scheme of the utility model embodiment Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also To obtain other related accompanying drawings according to these accompanying drawings.

Fig. 1 is the structural representation for the positioner that the utility model embodiment provides；

Fig. 2 shows the structural representation at the first visual angle of the pedestal in Fig. 1；

Fig. 3 shows the structural representation at the second visual angle of the pedestal in Fig. 1；

Fig. 4 shows the partial enlarged drawing of IV in Fig. 3；

Fig. 5 is the structural representation at the first visual angle of Fig. 1 work rest；

Fig. 6 is the structural representation at the second visual angle of Fig. 1 work rest；

Fig. 7 shows the partial enlarged drawing of VII in Fig. 6；

Fig. 8 is the structural representation of Fig. 1 keeper；

Fig. 9 is the structural representation of Fig. 1 clamping element；

Figure 10 is the structural representation of clamping element end in Fig. 9；

Figure 11 is the press plate structure schematic diagram of clamping element in Fig. 9.

Icon：100- positioners；200- pedestals；300- work rests；400- stoppers；500- keepers；600- is clamped Part；201- first connecting portions；202- second connecting portions；203- the first back chipping grooves；204- inclined planes；205- locating slots；207- connects Junction；206- positioning holes；301- positioning keys；The walls of 302- first；The walls of 303- second；304- working trajectory grooves；The back chippings of 306- second Groove；501- adjustment holes；602- contact sites；601- connecting portions；603- columnar members.

Embodiment

It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer Accompanying drawing in type embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that is retouched The embodiment stated is the utility model part of the embodiment, rather than whole embodiments.Generally here described in accompanying drawing and The component of the utility model embodiment shown can be configured to arrange and design with a variety of.Therefore, below to attached The detailed description of the embodiment of the present utility model provided in figure is not intended to limit claimed the scope of the utility model, But it is merely representative of selected embodiment of the present utility model.Based on the embodiment in the utility model, ordinary skill people The every other embodiment that member is obtained under the premise of creative work is not made, belong to the model of the utility model protection Enclose.

It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi It is defined, then it further need not be defined and explained in subsequent accompanying drawing in individual accompanying drawing.

, it is necessary to explanation, the orientation of the instruction such as term " on ", " under ", " interior ", " outer " in description of the present utility model Or position relationship be based on orientation shown in the drawings or position relationship, or the utility model product using when usually put Orientation or position relationship, it is for only for ease of description the utility model and simplifies description, rather than indicates or imply signified dress Put or element there must be specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to the utility model Limitation.In addition, term " first ", " second " etc. are only used for distinguishing description, and it is not intended that indicating or implying relatively important Property.

In description of the present utility model, it is also necessary to which explanation, unless otherwise clearly defined and limited, term " are set Put ", " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, Or it is integrally connected；Can be mechanical connection or electrical connection；Can be joined directly together, intermediary can also be passed through It is indirectly connected, can is the connection of two element internals.For the ordinary skill in the art, can be managed with concrete condition Solve concrete meaning of the above-mentioned term in the utility model.

In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or it " under " can directly be contacted including the first and second features, it is not directly to contact but lead to that can also include the first and second features The other characterisation contact crossed between them.Moreover, fisrt feature second feature " on ", " top " and " above " include the One feature is directly over second feature and oblique upper, or is merely representative of fisrt feature level height and is higher than second feature.First is special Sign second feature " under ", " lower section " and " below " including fisrt feature immediately below second feature and obliquely downward, or only Represent that fisrt feature level height is less than second feature.

In the utility model, in the case of not contradiction or conflict, all embodiments of the present utility model, embodiment And feature can be mutually combined.In the utility model, conventional unit, part etc. both can be commercially available, can also Made by oneself according to the utility model disclosure.It is normal to some in order to protrude emphasis of the present utility model in the utility model The omission that the operation of rule and unit, part are carried out, or be only briefly described.

Positioner 100 provided by the utility model and system of processing, belong to fracture toughness sample process equipment, can be used for A breach in mountain shape sample is processed.In actual applications, described positioner 100 and system of processing can to 90 °, The fracture toughness sample of a breach in mountain shape of 120 ° of two kinds of angle specifications is applicable.

System of processing includes process equipment and positioner 100.Wherein, process equipment refers to be used to process a breach in mountain shape examination The equipment of sample.Positioner 100 is connected to process equipment, and as a kind of optional example, process equipment is linear cutting equipment, phase Ying Di, location equipment are connected to the X-axis workbench of linear cutting equipment.Linear cutting equipment is carried out by wire electrode (molybdenum filament or tungsten filament) Cutting, wire electrode are connected to wire reeling rack and inserting rack.

Wherein, X-axis workbench, wire electrode, wire reeling rack and inserting rack can use equipment known for inventor, utility model It is made specific elaboration.

During the positioner 100 that the present embodiment provides is processed available for a breach in mountain shape, to a breach in mountain shape sample Product are accurately positioned.

As shown in figure 1, positioner 100 includes pedestal 200, work rest 300 and stopper 400.

Pedestal 200 is used to be connected to foregoing process equipment, and more specifically, pedestal 200 is connected to workbench.Pedestal 200 are connected to workbench, and provide support force to work rest 300, and the posture of work rest 300 can be defined.

As shown in Figures 2 and 3, pedestal 200 has first connecting portion 201 and second connecting portion 202.First connecting portion 201 The both sides of pedestal 200 are located substantially at second connecting portion 202.Wherein, first connecting portion 201 has joint face 207.Joint face 207 are used to be connected, more specifically, joint face 207 and workbench with processing the process equipment (workbench) of a breach in mountain shape sample Pressing plate be fixed；Second connecting portion 202 has inclined plane 204.The angle of inclination of inclined plane 204 is 60 degree as shown in Figure 1, In some other example, angle of inclination can also be 45 degree, or, it can also design as needed with differing tilt angles Inclined plane 204.Described angle of inclination refers to angle of the inclined plane 204 relative to joint face 207.Because inclined plane 204 has Different angles, therefore, the settable more sets of pedestal 200, such as two sets, and the angle of inclined plane 204 is respectively 45 degree and 60 degree.

As shown in Figure 2, Figure 3 and Figure 4, further, the bottom (end of joint face 207) of pedestal 200 is designed with first Back chipping groove 203, can be parallel solid with the progress of lathe X-axis workbench for ensuring that pedestal 200 does not interfere with workbench root Fixed, leveling positioning.The setting of first back chipping groove 203 so that when work rest 300 is connected to process equipment, (processing is set workbench It is standby) protuberance freely can actively be disposed in the first back chipping groove 203, for ensuring pedestal 200 and wire cutting workbench The goodness of fit and matching degree, come ensure processing angle.

Further, pedestal 200 is additionally provided with locating slot 205, and locating slot 205 is located at inclined plane 204.Locating slot 205 For being assembled with work rest 300 (general workpiece framework).A kind of optional example, work rest 300 are symmetrical by two Fixing bolt, positioning hole 206 are fastened, and fixing bolt is connected in locating slot 205.

As shown in Figure 5 and Figure 6, work rest 300 is used to accommodate workpiece (a breach in mountain shape sample), and common with stopper 400 With coordinating controllably to limit workpiece, make workpiece that there is desired posture.Work rest 300 (general workpiece framework) is installed on pedestal 200。

Work rest 300 is connected to inclined plane 204.Convenience and fastness based on connection, stability, the band of work rest 300 There is the positioning key 301 matched with locating slot 205, and through hole is set, then fixed with bolt, so that the pedestal at two kinds of angles of inclination 200 locating slot 205 is assembled respectively with positioning key 301, to realize the working ability of 90 degree, 120 degree two kinds of a breach in mountain shape.

Work rest 300 has relative the first wall 302 and the second wall 303 away from the side of inclined plane 204.First wall 302 Described side is protruded from the second wall 303, and limits the limit space for accommodating a breach in mountain shape sample.In other words, limit space Away from inclined plane 204.

Further, work rest 300 is provided with working trajectory groove 304, and working trajectory groove 304 is located at work rest 300 Bottom, more specifically, working trajectory groove 304 are located at work rest 300 adjacent to the region of the first wall 302, the quilt of working trajectory groove 304 It is configured to the motion path of process equipment processing a breach in mountain shape sample.Specifically, working trajectory groove 304 is used to accept wire electrode (molybdenum filament or tungsten filament), and in operation process is processed, wire electrode is not interfered with preparing the working trajectory of a breach in mountain shape.This implementation In example, falsework shares three working trajectory grooves 304, for meeting that a breach in mountain shape of different form-factor workpiece is processed.Certainly, The quantity of working trajectory groove 304 can also have an other quantity, such as 1,2,4.Further, on general workpiece framework Working trajectory groove 304, profile physical dimension is greater than the actual size of fracture toughness sample a breach in mountain shape, reserves surplus and be easy to Prepared by the processing to workpiece a breach in mountain shape, the width of working trajectory groove 304 selection 0.2W (W is the width of the workpiece), more than a breach in mountain shape Width 0.1W.

Further, the top of work rest 300, i.e. the second wall 303 are provided with three locking screw keyhole (not shown).Locking Bolt hole carries internal thread, is corresponded with three foregoing working trajectory grooves 304, for workpiece (a breach in mountain shape sample) to be locked Tightly on work rest 300 (general workpiece framework).Stopper 400 is realized to different specification size by three locking screw keyholes The locking function of workpiece.

As shown in Figure 6 and Figure 7, further, the first wall 302 (lower baffle plate root) of work rest 300 is designed with second Back chipping groove 306, ensure that wedge angle position does not interfere when workpiece assembles with work rest 300, improves the identical property of workpiece assembling, really Protect a breach in mountain shape sample machining accuracy and reliability in process.Second back chipping groove 306 is configured to work as a breach in mountain shape sample When being defined to piece-holder space, the root of a breach in mountain shape sample freely can be actively disposed in the second back chipping groove 306.

Referring to Fig. 1, stopper 400 is adjustably coupled to work rest 300.By adjusting stopper 400, make it With the common positioning and clamping workpiece of pedestal 200 (a breach in mountain shape sample).

Stopper 400 includes keeper 500 and clamping element 600.Wherein, keeper 500 have be sequentially connected leading portion, in Section and back segment.Wherein, keeper 500 is connected to the side of work rest 300, and closes the part of limit space.Specifically, it is preceding Section, back segment are respectively connecting to the first wall 302 and the second wall 303, and stage casing is connected to the first wall 302 and the second wall of work rest 300 Between 303.Clamping element 600 be connected to the second wall 303 and can opposite first walls 302 move.

Clamping element 600, the wall 302 of keeper 500 and first limit piece-holder space jointly.When carrying out work pieces process, Workpiece is clamped in piece-holder space.

As shown in figure 8, it is preferred that keeper 500 is connected to work rest 300, and at least two by least two connectors Individual connector is configured to the relative position being separately adjusted to alter between keeper 500 and work rest 300.Or Person, connector are three.More specifically, connector is bolt.The regulating bolt that three bolts equidistantly distribute, and pass through and set Three adjustment holes 501 of keeper 500 are placed in, during being locked to workpiece, three regulating bolts will alternately lock Tightly, to realize that centripetal force and feed distance are uniformly reliable.Further, locating module equidistantly distributes three positioning adjustment holes 501, for coordinating regulating bolt that locating module is adjusted and positioning, regulating bolt is used to adjust locating module, positioning mould Block is used to position position of the workpiece in workpiece framework.

As shown in figure 1, keeper 500 is installed on work rest 300, locating module can carry out dismounting and dynamic adjusts.Positioning Part 500 sets regulating bolt, with for ensureing the matching degree and perpendicularity of locating module and general workpiece framework.Locating module is pacified Loaded on general workpiece framework.Clamping element 600 (locking device) be used for pass through general workpiece framework and work pieces mate so that workpiece and General workpiece framework is accurately positioned locking.

In some optional examples, the contact jaw root (portion of neighbouring first wall 302 of keeper 500 (locating module) Point) the 3rd back chipping groove (not shown) is designed with, to ensure workpiece and wedge angle position during the assembling of general workpiece framework (work rest 300) Do not interfere, improve the identical property of workpiece assembling, it is ensured that a breach in mountain shape sample machining accuracy and reliability in process.

As shown in figure 9, as a kind of example, clamping element 600 has the contact site 602 being mutually matched and set threaded Connecting portion 601, contact site 602 are connected to the end of connecting portion 601.Connecting portion 601 is threadedly connected to the second wall 303.Workpiece clamp Space is held to be limited jointly by contact site 602, the wall 302 of keeper 500 and first.

As shown in Figure 10 and Figure 11, it is preferred that contact site 602 is platen.Contact site 602 has to be connect with a breach in mountain shape sample Tactile contact surface, the area of contact surface are more than the area of connecting portion 601.Larger contact surface, the stability of clamping can be improved, Workpiece is set to be not easy to shift.Further, contact site 602 is rotatably connected to the axial direction of connecting portion 601 for rotary centerline Connecting portion 601.Rotatable contact site 602 carries out rotation regulation with making its being adapted to property, with more closely clamping workpiece. In the preferable example of the utility model, clamping element 600 also includes columnar member 603, and contact site 602 is connected to by columnar member 603 Connecting portion 601, make contact site 602 can be along the axially free gyration of columnar member 603.

In other words, contact site 602 (locking device) includes platen two parts of clamping screw and bolt end, clamping screw The stove bolt for being connected bore dia less than platen using diameter with platen is attached, and platen can be hollow on clamping screw top Turn, and the swing in certain angle can be completed, acted on by adjusting the certain power of clamping screw application on platen, platen is pressed onto Workpiece surface, to realize the locking to workpiece.Platen is rotatable and the function of angle swinging effectively prevent because clamping screw revolves Sample tilts caused by turning, and more effectively ensure that the precision of work pieces process.

In some other example, clamping element 600 (locking device) is made up of the platen of clamping screw and bolt end, removable The platen unloaded is assembled with clamping screw, and workpiece is smoothly locked to (the general workpiece frame of work rest 200 to realize Frame) on.

Preferably, locating module and platen are used to positioning and locking workpiece, due to contacting simultaneously stress, category for a long time with workpiece Demountable structure is employed when consumable accessory, design, can be changed after abrasion.

The particular design of platen and effect, stress concentration between platen and workpiece is reduced, coupling mechanism force is decomposed from a contact Contacted into face, platen simultaneously can flexibly be swung, and power is transferred on sample indirectly by platen, is efficiently solved workpiece alice and asked Topic, and then realize the locking to workpiece.

The application method of positioner 100：

In use, the blank of lower honest material is first processed into all outer of fracture toughness sample using linear cutting equipment or milling machine Shape size, then according to demand or relevant criterion to fracture toughness sample a breach in mountain shape angle requirement selection corresponding to pedestal 200 (pedestal 200 there are 2 sets, and the bevel angle of pedestal 200 is respectively 45 degree, 60 degree), now made by the root back chipping groove of pedestal 200 With pedestal 200 and wire cutting X-axis workbench being made regulation and to coordinate well, then by wire cutting workbench pressing plate by base Seat 200 fix cutting on line workbench on, next by the positioning key 301 on general workpiece framework with corresponding pedestal 200 Locating slot 205 is assembled, and is fixed afterwards with two symmetrical fixing bolts.

Next locating module is connected to general workpiece framework, and be close to general workpiece frame bridge joint contravention, positioning mould Block is higher by general workpiece framework inclined-plane (D2<D1), preferably to position workpiece, the workpiece for then processing appearance and size is put Enter in general workpiece framework, and suitable working trajectory groove 304 is selected according to workpiece configurations dimensions, the position of workpiece determines Afterwards, locating module is adjusted so as to be positioned to the position of workpiece using regulating bolt, it is fixed to determine the correct position of workpiece The surface that position module is used to position workpiece will ensure that (roughness is less than 1.6um to finish good enough, is according to most tight standard pair The requirement setting of fracture toughness sample surfaces roughness).

After position of the workpiece in general workpiece framework is selected, by rotational lock bolt indirect belt dynamic pressure disk to reach Dynamic, so as to drive platen to move closer to workpiece surface, when platen, platen will not rotate any more after workpiece surface is contacted, and now may be used Clamping screw is continued through in platen internal rotation to realize locking of the platen to workpiece, by the transformation of this power, was both reached The effect of locking, protects workpiece again, prevents the scuffing to workpiece during locking, there is 3 locks equidistantly distributed altogether Tight bolt, during being locked to workpiece, three clamping screws will be locked alternately, to realize that centripetal force and feeding are gone Journey is uniformly reliable, after the completion of workpiece is locked, adjusts linear cutting equipment working electrode silk (molybdenum filament or tungsten filament) and coil holder position, Linear cutting equipment can be started to be processed fracture toughness sample a breach in mountain shape, to complete a breach in mountain shape fracture toughness workpiece Preparation work.

A kind of a breach in mountain shape Sample preparation, it is comprised the following steps：

Workpiece is first processed into appearance and size by linear cutting equipment or milling machine, workpiece is then placed on general workpiece framework In, general workpiece framework side is equipped with locating module, and adjusts locating module and general workpiece framework by regulating bolt Tightness degree, workpiece is close to the lower baffle plate of locating module and workpiece framework, and is selected according to workpiece configurations specification corresponding Working trajectory groove 304, it is ensured that the precision of work pieces process.

Based on foregoing description, positioner 100 provided by the utility model and system of processing have advantages below：

(1) used, various metal materials can be broken by the exploitation of a breach in mountain shape sample processing and processing method The a breach in mountain shape for splitting toughness sample is accurately positioned and processed, and completely solving can not be prepared with angle using traditional wire cutting The a breach in mountain shape of degree was slotted and using the problems such as milling machine process tool is limited, cost is high, precision is unreliable.

The pedestal 200 of (2) two sets of variable-angles is designed with back chipping groove with wire cutting workbench fixed position, the back chipping groove Repetitive positioning accuracy during for ensureing that pedestal 200 and wire cutting workbench are fixed, it can be ensured that sample after installing With the depth of parallelism of wire cutting workbench X-direction, so that it is guaranteed that general workpiece framework bevel angle precision, is improved in batch production Repetitive positioning accuracy, while also for improve a breach in mountain shape machining accuracy provide guarantee.

(3) general workpiece framework lower baffle plate root and back chipping groove is designed with locating module contact jaw root, for protecting Card workpiece does not interfere with the rack-mounted timing wedge angle position of general workpiece frame, it is ensured that the positioning precision of workpiece assembling, so as to ensure Workpiece setting angle and a breach in mountain shape machining angle are accurately and reliably.

(4) workpiece is arranged on general workpiece framework, and workpiece is accurately positioned in workpiece framework by locating module, locking dress Put by platen and work pieces mate, workpiece is lock onto workpiece framework, pedestal 200 is fixed on cutting on line workbench, due to this Design in positioning processing device structure, the preparation function with angled a breach in mountain shape is realized, while can ensure that chevron lacks The machining accuracy of mouth, improves fracture toughness sample product qualified rate.

(5) general workpiece framework bottom face design extends downwardly 50mm with linear cutting equipment table top, so that workpiece is fixed Position is extended to below wire cutting work top, after design application, need not heightened wire cutting coil holder height and adjusted long electrode Various sizes workpiece can be processed in the case of filament length degree, further ensure the quality and precision of workpiece in process (wire electrode is longer, the easier vibration when wire electrode contacts work with workpiece, and precision and machined surface quality can be caused to reduce, Inserting rack is fixed, and wire reeling rack can be highly adjusted according to workpiece or positioning and locking frock, to meet different workpieces height It is required that).

(6) lacked for two kinds of fracture toughness chevrons of national standard GB/T4161-2007 and American Standard ASTM E399-2012 requirements Bicker degree (90 degree and 120 degree), it can be realized by changing the pedestal 200 (being respectively 45 degree and 60 degree) of two sets of different angles, Assembling and fixation of the general workpiece framework with pedestal 200 using key and groove, it is ensured that fracture toughness sample a breach in mountain shape angle precision (after workpiece covers one side, workpiece is turned over other face is processed, processing twice can complete 90 degree of breach and 120 degree The processing request of breach).

(7) locking device uses particular design, and clamping screw is connected the small of bore dia using diameter with platen less than platen Bolt is attached, and platen can dally in clamping screw top, and can complete to swing by adjustment in certain angle Clamping screw applies certain power and acted on platen, platen by power decomposition in specimen surface, to realize the lock to sample Tightly, on the one hand effectively prevent the sample caused by clamping screw rotates to tilt, while platen and workpiece are contacted using face, can be subtracted The influence of few stress concentration, more effectively ensure that the precision of sample processing.Locating module and platen can be dismantled simultaneously, Cause to wear during the device long-term use, can only change locating module and platen, improve a breach in mountain shape sample Processing unit (plant) service life.

Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this For the technical staff in field, the utility model can have various modifications and variations.It is all in the spirit and principles of the utility model Within, any modification, equivalent substitution and improvements made etc., it should be included within the scope of protection of the utility model.

Claims (10)

1. a kind of positioner, for being positioned to a breach in mountain shape sample, to be processed to a breach in mountain shape, it is special Sign is that the positioner includes：

Pedestal, the pedestal have first connecting portion and second connecting portion, and the first connecting portion has joint face, the connection Face is configured to be connected with processing the process equipment of a breach in mountain shape sample, and the second connecting portion has inclined plane；

Work rest, the work rest are connected to the inclined plane, and the work rest has relative the first wall and the second wall, described First wall and second wall limit the limit space for accommodating a breach in mountain shape sample, and the limit space deviates from the inclination Face；

Stopper, the stopper include keeper and clamping element, and the keeper is respectively connecting to first wall and described Second wall and the part for closing the limit space, the clamping element are connected to second wall and can relatively described first walls Motion, the clamping element, the keeper and first wall limit piece-holder space jointly.

2. positioner according to claim 1, it is characterised in that the pedestal has what is contacted with the process equipment Joint face, the relatively described joint face of the inclined plane is in 45 ° or 60 ° inclinations.

3. positioner according to claim 1, it is characterised in that the clamping element have the contact site that is mutually matched and Threaded connecting portion is set, and the connecting portion is threadedly connected to second wall, and the contact site is connected to the connecting portion End, the piece-holder space is limited jointly by the contact site, the keeper and first wall.

4. positioner according to claim 3, it is characterised in that the contact site has and a breach in mountain shape sample The contact surface of contact, the area of the contact surface are more than the area of the connecting portion.

5. the positioner according to claim 3 or 4, it is characterised in that the contact site is with the axial direction of the connecting portion The connecting portion is rotatably connected to for rotary centerline.

6. positioner according to claim 5, it is characterised in that the clamping element also includes columnar member, the contact Portion is connected to the connecting portion by the columnar member, the contact site is transported along the axially free revolution of the columnar member It is dynamic.

7. positioner according to claim 1, it is characterised in that the keeper is connected by least two connectors To the work rest, and at least two connector is configured to separately be adjusted to alter the keeper and institute State the relative position between work rest.

8. the positioner according to claim 1 or 7, it is characterised in that the work rest is provided with multiple working trajectories Groove, the working trajectory groove are configured to the motion path that the process equipment processes a breach in mountain shape sample.

9. positioner according to claim 1, it is characterised in that the work rest has in the limit space The second back chipping groove, the second back chipping groove is configured to when a breach in mountain shape sample is defined to the piece-holder space When, the root of a breach in mountain shape sample freely can be actively disposed in the second back chipping groove；

The pedestal is provided with the first back chipping groove, and the first back chipping groove is configured to when the work rest is connected to described add During construction equipment, the protuberance of the process equipment freely can be actively disposed in the first back chipping groove.

10. a kind of system of processing, it is characterised in that including the process equipment, fixed as claimed in any one of claims 1-9 wherein Position device.