CN208714159U - Quick perforating device - Google Patents

Abstract

The utility model provides a kind of quick perforating device, belong to punching auxiliary tool technology field, including pedestal, first limit plate, second limit plate, the drill bit guide pad being set on the base, along the sliding seat with the sliding of the second limit plate parallel direction, with the first limit plate sliding bar disposed in parallel, mounting base is additionally provided on sliding bar, drill bit guide pad is detachably arranged in mounting base, the hold-down mechanism being additionally provided on pedestal, hold-down mechanism includes the fixed column being set on the base, the lifting set being sleeved in fixed column, it is sleeved on the turning set of the outside of lifting set, and the compressor arm on turning set is set, lifting puts on the retaining mechanism being additionally provided with.Quick perforating device provided by the utility model, when the product to high-volume and same size and shape carries out perforation processing, can once remaining workpiece be punched by only needing to position, simple to operate to be fixed conveniently, and improve the production efficiency of product workpiece.

Description

Quick perforating device

Technical field

It is more specifically to be related to a kind of quick perforating device that the utility model, which belongs to punching ancillary technique field,.

Background technique

It is carried out in process to workpiece, punching is a kind of processing method common in machining, but existing at present Some hole knockouts, during being punched to product, need to be found accurately on each workpiece to be punctured, position, The operation such as mark then needs when if desired the product of high-volume and same size and shape carries out perforation processing to each product Repeat it is above-mentioned the operating procedures such as find, position, marking accurately, cause drilling operation complex steps, seriously affected the life of product workpiece Produce efficiency.

Utility model content

The purpose of this utility model is to provide a kind of punching fixing tools, it is intended to solve in the prior art to high-volume And the product of same size and shape is when carrying out perforation processing, need to repeat each product it is above-mentioned find accurately, position, mark etc. grasp The problem of making step, causing punch out step cumbersome production efficiency.

In order to achieve the above purposes, the technical solution adopted by the utility model is: provides a kind of quick perforating device, including bottom Seat, setting on the base the first limit plate for positioning the location of workpiece, setting on the base and with described first Limit plate is vertically arranged the second limit plate for positioning the location of workpiece, mobilizable setting on the base and is located at workpiece The drill bit guide pad of top, be additionally provided on the pedestal can along the sliding seat slided with the second limit plate parallel direction, The top of the sliding seat be also rotatably provided with the first limit plate sliding bar disposed in parallel, on the sliding bar The mounting base that is also slidably provided with and can slide along the sliding bar length direction, the drill bit guide pad are removably pacified In the mounting base, the hold-down mechanism for being fixed workpiece, the hold-down mechanism packet are additionally provided on the pedestal Include setting on the base and in the vertically disposed fixed column of the pedestal, be sleeved in the fixed column and can be along described solid Fixed column axial movement lifting set, be sleeved on it is described lifting set outside and with it is described lifting external threading connect turning set, with And the compressor arm that can be rotated on the turning set and with the turning set is set, the lifting, which is put on, to be additionally provided with for fixing Lifting covers the retaining mechanism of the position in fixed column.

Further, the mounting base includes the moving slide block being slidably disposed on the sliding bar and setting Installation sliding block on the moving slide block, it is described that the installation being provided on sliding block for fixing the drill bit guide pad is installed Hole is additionally provided with the holding pin for fixing moving slide block position on the sliding bar on the moving slide block.

Further, the slide rail for installing the sliding seat is additionally provided on the pedestal, the sliding seat Bottom is additionally provided with the sliding shoe for being coupled and being slidably disposed on the sliding seat with the slide rail, institute State the fixing screws being additionally provided on sliding seat for being fixed to the sliding seat on the slide rail.

Further, the supporting block for being used to support the sliding boom end, the sliding bar are additionally provided on the pedestal End be additionally provided with for by the sliding bar be fixed to the supporting block top magnetic block.

Further, the end of the compressor arm is additionally provided with pinch rollers, and the pinch rollers are spindle rotationally arranged in The circumference of the end of the compressor arm, the pinch rollers is resisted against on the upper surface of workpiece.

Further, it is additionally provided on the turning set for pushing workpiece to the direction close to second limit plate Compression assemblies, the compression assemblies are resisted against on side of the workpiece far from second limit plate.

Further, the compression assemblies include being spindle rotationally arranged on the turning set and being arranged in the compressor arm The fixed frame of lower section, the extruding wheel for being spindle rotationally arranged in the fixed frame both ends and setting are in fixed frame and turning set Between elastic component, the circumference of the extruding wheel is resisted against the side of workpiece.

Further, the drill bit guide pad includes the fixed part being threadedly coupled with the mounting base and the fixed part Concentric setting is for rotating the mounting portion of the fixed part and leading through what the fixed part and the mounting portion were arranged Xiang Kong.

Further, the oral area of the pilot hole is additionally provided with the taper entered inside the pilot hole convenient for drill bit Hole.

Further, it is additionally provided on the pedestal for preventing bit contact to be spaced apart to the resigning of the pedestal, it is described The size of the resigning shape size being spaced apart and the moving range of the drill bit guide pad is mutually adapted.

The beneficial effect of quick perforating device provided by the utility model is: compared with prior art, setting on pedestal It is equipped with the first limit plate and the second limit plate for positioning the location of workpiece, workpiece is passed through into the first limit plate and the second limit After plate is positioned, further according to the position for needing to punch on workpiece, by be arranged in the sliding seat of the second limit plate side with And mounting base adjusts position of the drill bit guide pad above workpiece, only needs drill bit passing through drill bit guiding in workpiece punching Block can quickly determine the punch position on workpiece, and mounting base is slidably disposed in sliding bar, and sliding bar End and the top of sliding seat are hingedly arranged, workpiece punching when can by rotation sliding bar easily by drill bit guide pad from It is removed above workpiece, and is additionally provided with the hold-down mechanism for being fixed workpiece on pedestal, the mobilizable suit of turning set It covers upper in lifting and is connect with lifting external threading, after the location of workpiece determines, pass through rotation compressor arm drive turning set and lifting Opposite rotation is generated between set, since turning set and lifting set are connected through a screw thread, returns production while turning set rotation Workpiece is fixed securely, together by the raw movement axial along lifting set to make compressor arm be pressed abd fixed in the upper plane of workpiece When lifting set can along the axial movement of fixed column, can freely adjust according to thickness of workpiece go up and down cover and compressor arm initial height Degree, can easily be adjusted according to the thickness of workpiece, so that the utility model is fixed the workpiece of multi-thickness specification, make The clamping of workpiece and take more convenient, the utility model punches fixing tool, to high-volume and same size and shape When product carries out perforation processing, it is only necessary to which positioning can once punch remaining workpiece, fixation simple to operate It is convenient, improve the production efficiency of product workpiece.

Detailed description of the invention

It, below will be to embodiment or the prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only that this is practical new Some embodiments of type for those of ordinary skill in the art without creative efforts, can be with root Other attached drawings are obtained according to these attached drawings.

Fig. 1 is the structural schematic diagram one of quick perforating device provided by the embodiment of the utility model；

Fig. 2 is the structural schematic diagram two of quick perforating device provided by the embodiment of the utility model；

Fig. 3 is the schematic diagram of the section structure of mounting base used by the utility model embodiment；

Fig. 4 is the schematic diagram of the section structure of hold-down mechanism used by the utility model embodiment；

Fig. 5 is the enlarged structure schematic diagram in the portion A in Fig. 2.

In figure: 1, pedestal；11, slide rail；12, it steps down and is spaced apart；21, the first limit plate；22, the second limit plate；3, it bores Head guide pad；31, fixed part；32, mounting portion；33, pilot hole；34, bellmouth；4, sliding seat；41, sliding shoe；42, fixed spiral shell Nail；5, sliding bar；51, magnetic block；6, mounting base；61, moving slide block；62, sliding block is installed；63, mounting hole；64, holding pin； 65, relief hole；7, supporting block；8, hold-down mechanism；81, fixed column；82, lifting set；83, turning set；84, compressor arm；85, it locks Mechanism；86, pinch rollers；9, compression assemblies；91, fixed frame；92, extruding wheel；93, elastic component；10, workpiece.

Specific embodiment

In order to which technical problem to be solved in the utility model, technical solution and beneficial effect is more clearly understood, with Lower combination accompanying drawings and embodiments, the present invention will be further described in detail.It should be appreciated that specific reality described herein It applies example to be only used to explain the utility model, is not used to limit the utility model.

Also referring to Fig. 1 and Fig. 2, now quick perforating device provided by the utility model is illustrated.Quickly punching Device, including pedestal 1, be arranged on pedestal 1 for position 10 position of workpiece the first limit plate 21, be arranged on pedestal 1 and The second limit plate 22 for positioning 10 position of workpiece is vertically arranged with the first limit plate 21, mobilizable is arranged in pedestal 1 And it is located at the drill bit guide pad 3 of the top of workpiece 10, be additionally provided on pedestal 1 can be along sliding with 22 parallel direction of the second limit plate Sliding seat 4, the top of sliding seat 4 are also rotatably provided with and the sliding bar 5 disposed in parallel of the first limit plate 21, sliding bar 5 On be also slidably provided with and can along 5 length direction of sliding bar slide mounting base 6, drill bit guide pad 3 removably install In mounting base 6, the hold-down mechanism 8 for being fixed workpiece 10 is additionally provided on pedestal 1, hold-down mechanism 8 includes that setting exists On pedestal 1 and in the vertically disposed fixed column 81 of pedestal 1, the liter that is sleeved in fixed column 81 and can be moved axially along fixed column 81 Set 82 is dropped, the outside of lifting set 82 is sleeved on and covers the turning set 83 and be arranged in turning set 83 that 82 are threadedly coupled with lifting Compressor arm 84 that is upper and can rotating with turning set 83, lifting, which covers, to be additionally provided with for fixed lifting set 82 in fixed column 81 on 82 Position retaining mechanism 85.

Specifically, retaining mechanism 85 includes the locking for being arranged and being threadedly coupled with lifting set 82 through the side wall of lifting set 82 Mechanism 85 and be arranged in lifting set 82 side wall on be used for installation locking mechanism 85 threaded hole, lifting set 82 position root After thickness adjustment according to workpiece 10, by rotating the retaining mechanism 85 connecting with lifting 82 sidewall threads of set, make locking machine The end of structure 85 is resisted against in fixed column 81, so that lifting set 82 is fixed in fixed column 81, retaining mechanism 85 is using such Structure, structure simple operations are efficient and convenient

Quick perforating device provided in this embodiment is provided on pedestal 1 for positioning workpiece compared with prior art The first limit plate 21 and the second limit plate 22 of 10 positions, by workpiece 10 by the first limit plate 21 and the second limit plate 22 into After row positioning, further according to the position for needing to punch on workpiece 10, by be arranged in the sliding seat 4 of 22 side of the second limit plate with And mounting base 6 adjusts position of the drill bit guide pad 3 above workpiece 10, only needs to pass through drill bit into brill when workpiece 10 punches Head guide pad 3 can quickly determine the punch position on workpiece 10, and mounting base 6 is slidably disposed in sliding bar 5, and And the end of sliding bar 5 and the top of sliding seat 4 are hingedly arranged, it can be by rotating 5 convenience of sliding bar when workpiece 10 punches Drill bit guide pad 3 is removed above workpiece 10, and the compacting machine for being fixed workpiece 10 is additionally provided on pedestal 1 Structure 8, turning set 83 is mobilizable to be sleeved on lifting set 82 and is threadedly coupled with lifting set 82, after 10 position of workpiece determines, It is driven by rotation compressor arm 84 and generates opposite rotation between turning set 83 and lifting set 82, since turning set 83 and lifting cover 82 are connected through a screw thread, and return and are generated along the axial movement of lifting set 82 to make compressor arm 84 while turning set 83 rotates It is pressed abd fixed in the upper plane of workpiece 10 and is fixed workpiece 10 securely, while going up and down set 82 can be along the axial direction of fixed column 81 Movement can freely adjust the elemental height of lifting set 82 and compressor arm 84 according to 10 thickness of workpiece, can be according to workpiece 10 Thickness be easily adjusted, so that the utility model is fixed the workpiece 10 of multi-thickness specification, make the clamping of workpiece 10 More convenient with taking, the utility model punches fixing tool, beats in the product to high-volume and same size and shape When hole machined, it is only necessary to which positioning can once punch remaining workpiece 10, simple to operate to be fixed conveniently, and improve The production efficiency of product workpiece 10.

As a kind of specific embodiment of quick perforating device provided by the utility model, also referring to Fig. 1 to figure 3, mounting base 6 includes the moving slide block 61 being slidably disposed on sliding bar 5 and the installation being arranged on moving slide block 61 Sliding block 62 installs the mounting hole 63 being provided on sliding block 62 for fixed drill bit guide pad 3, is additionally provided with use on moving slide block 61 Holding pin 64 in the fixed position on sliding bar 5 of moving slide block 61, drill bit guide pad 3 are removably arranged in mounting hole 63 It is interior, relief hole 65 passing through for drill bit and through moving slide block 61 and the installation setting of sliding block 62 is additionally provided in mounting base 6, Relief hole 65 and the concentric setting of mounting hole 63, holding pin 64 are threadedly coupled with moving slide block 61, are provided on moving slide block 61 Through moving slide block 61, the threaded hole for installing holding pin 64 is set.

Specifically, the quantity of holding pin 64 is two, it is separately positioned on two sides of moving slide block 61, retaining mechanism 85 setting allows moving slide block 61 to be fixed on 5 top of sliding bar when carrying out drilling operation, prevents due to moving slide block 61 Punching size inaccuracy caused by moving in sliding bar 5, mounting hole 63 are that cross section is circular threaded hole, drill bit guiding Block 3 is threadably secured with mounting hole 63, is kept the installation of drill bit guide pad 3 and disassembly more convenient, is punched to workpiece 10 When processing, the drill bit guide pad 3 with corresponding size can be replaced according to the aperture to be punched, make the present embodiment using more Add conveniently, adaptability is more extensive.

As a kind of specific embodiment of quick perforating device provided by the utility model, Fig. 1 and Fig. 2, bottom are please referred to It is additionally provided with slide rail 11 for installing sliding seat 4 on seat 1, the bottom of sliding seat 4, which is additionally provided with, to be used for and slide rail 11 are coupled and are slidably disposed in the sliding shoe 41 on sliding seat 4, are additionally provided on sliding seat 4 for by sliding seat 4 Fixed to the fixing screws 42 on slide rail 11.

Specifically, slide rail 11 is the strip structure that cross section is T-type, slide rail 11 is arranged in the second limit plate 22 Outside and be arranged in parallel with the second limit plate 22, be provided on sliding shoe 41 for accommodating slide rail 11 and in slide rail The groove that 11 shapes mutually use, fixing screws 42 are arranged and are threadedly coupled with sliding seat 4, the end of fixed pin through sliding seat 4 It is resisted against in the upper plane of slide rail 11, the setting of fixing screws 42 prevents from occurring on slide rail 11 due to sliding seat 4 Punching size inaccuracy, keeps the present embodiment more convenient to use caused by movement.

As a kind of specific embodiment of quick perforating device provided by the utility model, Fig. 1 and Fig. 2, bottom are please referred to The supporting block 7 for being used to support 5 end of sliding bar is additionally provided on seat 1, and the end of sliding bar 5 is additionally provided with for by sliding bar 5 The fixation kit at the top fixed to supporting block 7, the end of sliding bar 5 are fixed to the top of supporting block 7 by fixation kit admittedly, The height of supporting block 7 and the position height of the fixation kit in 5 holding level of sliding bar are mutually matched, and the setting of fixation kit makes The fixed setting of sliding bar 5 is more firm, and fixation kit is the magnetic block 51 that 5 end of sliding bar is removably arranged in, magnetic Block 51 is rectangular parallelepiped structure, and magnetic block 51 is installed in the end of sliding bar 5, when sliding bar 5 keeps level, under magnetic block 51 Flat against at the top of supporting block 7, fixation kit in such a way that magnetic block 51 is fixed, supporting block 7 between cast iron quality, By the magnetic absorption of magnetic block 51 in the top of supporting block 7, fixation convenient disassembly.

As a kind of specific embodiment of quick perforating device provided by the utility model, Fig. 2 to Fig. 5 is please referred to, is pressed The end of tight bar 84 is additionally provided with pinch rollers 86, and pinch rollers 86 are spindle rotationally arranged in the end of compressor arm 84, compresses rolling The circumference of wheel 86 is resisted against on the upper surface of workpiece 10, and pinch rollers 86 are arranged in the end of compressor arm 84 and can be around compressor arm 84 Axis rotation, the circumference of pinch rollers 86 is resisted against on the upper surface of workpiece 10, while rotating compressor arm 84, makes to compress Roller bearing is rolled in the upper surface of workpiece 10, and it is more convenient that the setting of pinch rollers 86 rotate compressor arm 84 must, makes workpiece 10 It is fixed and clamped more convenient.

As a kind of specific embodiment of quick perforating device provided by the utility model, Fig. 2 and Fig. 5 is please referred to, is turned The compression assemblies 9 for pushing workpiece 10 to the direction close to the second limit plate 22, compression assemblies 9 are additionally provided on dynamic set 83 It is resisted against on side of the workpiece 10 far from the second limit plate 22, the setting of compression assemblies 9 makes to compress by rotation compressor arm 84 While fixed workpiece 10, compression assemblies 9 can also be driven to move by the rotation of turning set 83, by compression assemblies 9 by work Part 10 is pushed to the direction close to the second limit plate 22, and workpiece 10 and the second limit plate 22 is made to make position of the workpiece 10 on pedestal 1 It is more accurate to set, and keeps the position precision of drilling higher.

As a kind of specific embodiment of quick perforating device provided by the utility model, referring to Fig. 5, compression assemblies 9 include being spindle rotationally arranged on turning set 83 and being arranged in the fixed frame 91 below compressor arm 84, be spindle rotationally arranged in admittedly The elastic component 93 determining the extruding wheel 92 at 91 both ends of frame and being arranged between fixed frame 91 and turning set 83, extruding wheel 92 Circumference is resisted against the side of workpiece 10, specifically, the elastic component 93 is tension spring, the quantity of elastic component 93 is two, sets respectively Set in the two sides of turning set 83, and along the middle line of fixed frame 91 be symmetrical arranged, the setting of elastic component 93 make extruding wheel 92 with work Can be always with 84 keeping parallelism of compressor arm after the side separation of part 10, turning set 83 is hingedly arranged in the middle part of fixed frame 91 Side, extruding wheel 92 are spindle rotationally arranged in two ends of fixed frame 91, drive fixed frame simultaneously when turning set 83 rotates 91 move to the direction close to 10 side of workpiece, and the side of turning set 83 is hingedly arranged in the middle part of fixed frame 91, make solid Determine frame 91 and guarantee that two extruding wheels 92 can make the side for being resisted against workpiece 10 always during exercise, and can also be along workpiece 10 Flank movement, make compression assemblies 9 use simpler convenience, make the more convenient to use of the present embodiment.

As a kind of specific embodiment of quick perforating device provided by the utility model, referring to Fig. 3, drill bit is oriented to Block 3 includes the fixed part 31 being threadedly coupled with mounting base 6 and the concentric installation being arranged for rotating fixed part 31 of fixed part 31 Portion 32 and the pilot hole 33 being arranged through fixed part 31 and mounting portion 32, fixed part 31 is that cross section is circular column Structure, the border of fixed part 31 are provided with the screw thread to match with threaded hole, when drill bit guide pad 3 is installed in mounting hole 63 Fixed part 31 can be installed in mounting hole 63 by rotation mounting portion 32, make the installation and removal of drill bit guide pad 3 more It is simple and convenient, keep the present embodiment more convenient to use.

Specifically, mounting portion 32 is the column structure that cross section is hexagon, pilot hole 33 is arranged through mounting portion 32, peace Dress portion 32 is the column structure that cross section is hexagon, and fixed clamping is more convenient when making to rotate mounting portion 32, makes this implementation Example uses simpler convenience.

As a kind of specific embodiment of quick perforating device provided by the utility model, please refer to figs. 2 and 3, leads It is additionally provided with to the oral area in hole 33 and enters bellmouth 34 inside pilot hole 33, diameter at the minimum of bellmouth 34 convenient for drill bit Identical as the diameter of pilot hole 33, the setting of bellmouth 34 makes drill bit enter the 33 simpler convenience in inside of pilot hole, Improve the working efficiency of bore operation.

As a kind of specific embodiment of quick perforating device provided by the utility model, referring to Fig. 1, on pedestal 1 It is additionally provided with for preventing bit contact to be spaced apart 12 to the resigning of pedestal 1, resigning is spaced apart 12 shape size and drill bit guide pad 3 The size of moving range be mutually adapted, stepping down is spaced apart 12 setting and can prevent workpiece 10 in drill process, drill bit will Workpiece 10, which bores bottom plate after punching, hurts, and causes the damage of drill bit or bottom plate, makes the use more safe ready of the present embodiment.

The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all practical at this Made any modifications, equivalent replacements, and improvements etc., should be included in the guarantor of the utility model within novel spirit and principle Within the scope of shield.

Claims (10)

1. a kind of quick perforating device, it is characterised in that: including pedestal, setting on the base for positioning the location of workpiece First limit plate, setting are vertically arranged on the base and with first limit plate and for positioning the second of the location of workpiece Limit plate, mobilizable setting on the base and the drill bit guide pad that is located above workpiece, are additionally provided on the pedestal Can be along the sliding seat slided with the second limit plate parallel direction, the top of the sliding seat is also rotatably provided with and institute The first limit plate sliding bar disposed in parallel is stated, is also slidably provided on the sliding bar and can be along the sliding pole length The mounting base of direction sliding, the drill bit guide pad are detachably arranged in the mounting base, are additionally provided on the pedestal For being fixed the hold-down mechanism of workpiece, the hold-down mechanism includes setting on the base and vertical with the pedestal sets The fixed column set, is sleeved on the lifting at the lifting set that is sleeved in the fixed column and can move axially along the fixed column The outside of set and with the turning set that connect of lifting external threading and setting on the turning set and can be with the turning set The compressor arm of rotation, the lifting put on the locking for being additionally provided with and covering the position in the fixed column for fixing the lifting Mechanism.

2. quick perforating device as described in claim 1, it is characterised in that: the mounting base includes being slidably disposed in institute The installation sliding block stating the moving slide block on sliding bar and being arranged on the moving slide block is provided on the installation sliding block For fixing the mounting hole of the drill bit guide pad, it is additionally provided on the moving slide block for fixing the moving slide block in institute State the holding pin of position on sliding bar.

3. quick perforating device as claimed in claim 2, it is characterised in that: be additionally provided on the pedestal described for installing The slide rail of sliding seat, the bottom of the sliding seat are additionally provided with for being coupled with the slide rail and slidably Sliding shoe on the sliding seat is set, is additionally provided on the sliding seat for the sliding seat to be fixed to the sliding Fixing screws on guide rail.

4. quick perforating device as claimed in claim 3, it is characterised in that: be additionally provided on the pedestal described in being used to support The supporting block of boom end is slided, the end of the sliding bar is additionally provided with for the sliding bar to be fixed to the supporting block The magnetic block at top.

5. quick perforating device as described in claim 1, it is characterised in that: the end of the compressor arm is additionally provided with compression rolling Wheel, the pinch rollers are spindle rotationally arranged in the end of the compressor arm, and the circumference of the pinch rollers is resisted against workpiece On upper surface.

6. quick perforating device as claimed in claim 5, it is characterised in that: be additionally provided on the turning set for by workpiece The compression assemblies pushed to the direction close to second limit plate, the compression assemblies are resisted against workpiece far from second limit On the side of position plate.

7. quick perforating device as claimed in claim 6, it is characterised in that: the compression assemblies include being spindle rotationally arranged in On the turning set and be arranged in below the compressor arm fixed frame, be spindle rotationally arranged in the fixed frame both ends squeeze Pinch roller and the elastic component being arranged between the fixed frame and the turning set, the circumference of the extruding wheel are resisted against workpiece Side.

8. quick perforating device as described in claim 1, it is characterised in that: the drill bit guide pad includes and the mounting base The fixed part of threaded connection and the concentric setting of the fixed part are for rotating the mounting portion of the fixed part and through institute State the pilot hole of fixed part and mounting portion setting.

9. quick perforating device as claimed in claim 8, it is characterised in that: the oral area of the pilot hole is additionally provided with to bore Head enters the bellmouth inside the pilot hole.

10. quick perforating device as described in any one of claim 1 to 9, it is characterised in that: be additionally provided with use on the pedestal In preventing bit contact to be spaced apart to the resigning of the pedestal, the shifting of the step down shape size and the drill bit guide pad that are spaced apart The size of dynamic range is mutually adapted.