CN109365639A - Cupping tool with adjustable constant force elastic blank holding mechanism - Google Patents
Cupping tool with adjustable constant force elastic blank holding mechanism Download PDFInfo
- Publication number
- CN109365639A CN109365639A CN201811266077.8A CN201811266077A CN109365639A CN 109365639 A CN109365639 A CN 109365639A CN 201811266077 A CN201811266077 A CN 201811266077A CN 109365639 A CN109365639 A CN 109365639A
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- China
- Prior art keywords
- plate
- elastic
- pressure holding
- holding piece
- pressure
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
- B21D22/22—Deep-drawing with devices for holding the edge of the blanks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
- B21D37/12—Particular guiding equipment, e.g. pliers; Special arrangements for interconnection or cooperation of dies
Abstract
The present invention discloses a kind of cupping tool with adjustable constant force elastic blank holding mechanism, including lower die, upper mold and elastic blank holding structure, lower die includes lower template and drawing cavity plate, upper mold includes cope plate and drawing punch-pin, cope plate is vertically to being movably installed in lower template, and drawing punch-pin corresponds to the setting of drawing cavity plate, elastic blank holding structure includes blank holder and the elastic pressure holding piece set on blank holder upper end, blank holder is hung upwards to cope plate, the inner hole of blank holder is worn with for drawing punch-pin, elastic pressure holding piece has un-compressed free position and maintains the compression position of the first deformation, wherein, during upper mold moves down, elastic pressure holding piece switches to compression position from free position, elastic pressure holding piece pushes against the edge that blank holder compresses flitch, drawing punch-pin pushes against flitch and enters progress drawing operation in drawing cavity plate.The maintenance deformation quantity of elastic pressure holding piece is constant, so that the pressure-pad-force of blank holder pressure holding flitch is constant all the time, reduces the rejection rate and cost of finished product.
Description
Technical field
The present invention relates to mold design technical field, in particular to a kind of drawing with adjustable constant force elastic blank holding mechanism
Deep mold.
Background technique
Drawing is the processing method for stamping for making plate blank become open hollow part using mold, is that flitch is stamping
One of common processing method.In drawing process, flitch deformed area under the action of tangential compression stress, be very easy to unstability and
Corrugation.Preventing corrugated measure at present is usually: elastic blank holding mechanism being arranged on cupping tool, utilizes compressed elasticity member
The pressure-pad-force that part generates pushes down flitch deformed area.
In the prior art, for a certain specific drawing parts, required pressure-pad-force is certain in drawing process
, however as the increase of cupping tool impulse stroke, the compressed degree of elastic element increases always, and pressure-pad-force is caused also to begin
Rise eventually, to increase a possibility that part is by drawing crack, increases rejection rate.
Summary of the invention
The main object of the present invention is to propose a kind of cupping tool with adjustable constant force elastic blank holding mechanism, it is intended to be protected
Demonstrate,prove cupping tool work in pressure-pad-force it is constant, to reduce the rejection rate and cost of finished product.
To achieve the above object, the cupping tool proposed by the present invention with adjustable constant force elastic blank holding mechanism, comprising:
The upper end of lower die, including lower template, and the drawing cavity plate set on the lower template upper end, the drawing cavity plate supplies
Flitch is shelved；
Upper mold, including cope plate, and set on the cope plate lower end and vertically to the drawing punch-pin of extension, it is described on
Template is vertically to being movably installed in the lower template, and the drawing punch-pin corresponds to the drawing cavity plate setting；And
Elastic blank holding structure, the elastic pressure holding piece including blank holder and set on the blank holder upper end, the blank holder to
On hang to the cope plate, the inner hole of the blank holder is worn with for the drawing punch-pin, it is described elasticity pressure holding piece have
Un-compressed free position and the compression position for maintaining the first deformation；
Wherein, during the upper mold moves down, the elasticity pressure holding piece switches to the pressure from the free position
It condenses and sets, the elasticity pressure holding piece pushes against the edge that the blank holder compresses flitch, and the drawing punch-pin pushes against flitch and enters institute
It states and carries out drawing operation in drawing cavity plate.
It preferably, further include flanging driving device, the flanging driving device includes:
Rotary pressure plate, installation to the lower template, and it is located at the outside of the blank holder, the rotary pressure plate can be vertically
To rotation, the rotary pressure plate, which has initial makeup location and can turn to, to be compressed the elastic pressure holding piece and makes the elasticity pressure
The pressure holding position of first deformation occurs for gripping member；And
Position maintain structure, to the rotary pressure plate by the initial makeup location rotate to contact it is described elasticity press
Gripping member and when continuing rotation to the pressure holding position when corresponding elastic first deformation of pressure holding piece generation, maintains the rotation
The pressure holding position for turning pressing plate is constant, corresponding to maintain the elastic pressure holding piece that the compression position of the first deformation occurs not
Become, it is constant with the pressure-pad-force for maintaining the blank holder to apply flitch.
Preferably, the flanging driving device further include:
Two brackets being oppositely arranged, two branch are set up in the lower template, and are located at the outside of the blank holder；
The gear shaft being laterally extended, the gear shaft rotating turret are set on two brackets, one end of the gear shaft
Equipped with toothed region；
Connector sleeve is sheathed on the gear shaft, bonded by the first connection between the connector sleeve and the gear shaft
It connects；
Pressing plate fixed structure, the rotating ring in the outside including being sheathed on the connector sleeve, the side surface of the rotating ring is set
There is the rotary pressure plate, passes through the second connection key connecting between the rotating ring and the connector sleeve；And
Rack gear is extended in upward and downward, and the upper end of the rack gear is set to the cope plate, the rack gear and the tooth form
Portion engagement, in the folding process of the cope plate, gear shaft described in the rack drives rotation, with drive the connector sleeve and
The rotary pressure plate rotation, so that the rotary pressure plate compresses the elastic pressure holding piece and makes the elastic pressure holding piece that elasticity occur
Deformation.
Preferably, it includes the first extended limit plate of upward and downward, first limit plate that the position, which maintains structure,
Upper end be installed on the lower end surface of the cope plate, there are two the position limit arms of internal and external partition setting for the first limit plate tool；
The gear shaft is equipped with the first mounting groove adjacent to the side surface of the toothed region, sinks and sets in first mounting groove
Flexible part；
First mounting groove is corresponded on the side surface of the connector sleeve equipped with the second mounting groove, in second mounting groove
Equipped with actuator, between the actuator and the elastic component be equipped with first connecting key, the one of first connecting key
End is set in first mounting groove, and is pushed against and be arranged with the elastic component, and the other end of first connecting key is set to described
In second mounting groove, and pushes against and be arranged with the actuator, it is opposite with second mounting groove on the side surface of the connector sleeve
Place is equipped with rotation stop plane, and the actuator has initial position and activation point, in the initial position, the rotary pressure plate pair
It should be at the initial makeup location, in the activation point, the rotation stop plane and the position limit arm cooperate；
In the folding process of the cope plate, the rotation of gear shaft described in the rack drives, to drive the connector sleeve
Rotated with the rotary pressure plate, the rotary pressure plate by the initial makeup location rotate to contact the elastic pressure holding piece and after
When continuous rotation to the pressure holding position, when the first deformation occurs for the corresponding elastic pressure holding piece, at this point, the actuator is with institute
It states connector sleeve to be rotated by the initial position to the activation point, one of them described position limit arm compresses the actuator direction
The direction of first mounting groove is mobile, is set in first mounting groove so that first connecting key is heavy, disconnects the company
The connection of female connector and the gear shaft, another position limit arm and the rotation stop plane cooperate, to limit the rotary pressure plate dimension
Hold that the pressure holding position is constant, the corresponding compression position for maintaining the elastic pressure holding piece that the first deformation occurs is constant, with dimension
It is constant to hold the pressure-pad-force that the blank holder applies flitch.
Preferably, second mounting groove is radially in step setting, including the connection connector sleeve along the connector sleeve
The lesser small mounting groove section in section of the biggish big mounting groove section in the section of inner cavity and the connection big mounting groove section；
The actuator is radially in step setting, including biggish first drive section in section and section along the connector sleeve
Lesser second drive section, first drive section are mounted in the big mounting groove section.
Preferably, the outside of the connector sleeve is circumferentially arranged with multiple first installation keyways；
The inner wall of the rotating ring is equipped with the second installation keyway；
One end of second connecting key is set in the second installation keyway, and the other end pair of second connecting key
First installation keyway installation described in Ying Zeyi, to change the initial makeup location and the actuator of the rotary pressure plate
Angle between the initial position, so that the pressure holding position of the rotary pressure plate is adjustable, the corresponding elastic pressure holding piece
The compression position that the first deformation occurs is adjustable, and the pressure-pad-force that the corresponding blank holder applies flitch is adjustable；
The corresponding distance for adjusting the first limit plate upward and downward between the connector sleeve, to maintain the rotation to press
The pressure holding position of plate after the adjustment is constant, and the pressure of the first deformation occurs after the corresponding maintenance elastic pressure holding piece adjustment
Condensing, it is constant to set, constant with the pressure-pad-force adjusted for maintaining the blank holder to apply flitch.
Preferably, the rotating ring includes:
First rotation semi-ring, the first rotation semi-ring are equipped with the rotary pressure plate；And
Second rotation semi-ring fastens to form an inner cavity worn for the connector sleeve with the first rotation semi-ring.
Preferably, the flanging driving device setting is multiple, and along the circumferentially-spaced laying of the drawing cavity plate.
Preferably, the upper surface of the drawing cavity plate is equipped with a Drawing Hole worn for the drawing punch-pin, the drawing
Hole is arranged in down big up small step；Alternatively,
The lower end surface of the drawing punch-pin is equipped with the first air hole, and the upper end side surface of the drawing punch-pin is equipped with second thoroughly
Stomata, first air hole are connected with second air hole.
Preferably, the upper surface of the drawing cavity plate is equipped with position limiting structure, and the position limiting structure includes two and is oppositely arranged
The second limit plate being laterally extended, two second limit plates are to enclose the upper material space for being set as feed plate and shelving.
In technical solution provided by the invention, the elasticity pressure holding piece has un-compressed free position and maintenance first
The compression position of deformation, during the upper mold moves down, the elasticity pressure holding piece switches to the compression from free position
Position, the elasticity pressure holding piece push against the edge that the blank holder compresses flitch, and the drawing punch-pin pushes against described in flitch entrance
Drawing operation is carried out in drawing cavity plate, the pressure-pad-force of the blank holder correspond to the deformation quantity of the elasticity pressure holding piece, mold to
During lower drawing operation, the maintenance deformation quantity of the elasticity pressure holding piece is constant, so that the blank holder presses the flitch
Pressure-pad-force be constant all the time, reduce risk of the flitch by drawing crack, reduce the rejection rate and cost of finished product.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the solid point of cupping tool one embodiment provided by the invention with adjustable constant force elastic blank holding mechanism
Solve schematic diagram；
Fig. 2 is the stereoscopic schematic diagram of the cupping tool (start-up operation) in Fig. 1 with adjustable constant force elastic blank holding mechanism；
Fig. 3 is the broken section stereoscopic schematic diagram of the cupping tool in Fig. 2 with adjustable constant force elastic blank holding mechanism；
Fig. 4 is the enlarged diagram of part A in Fig. 3；
Fig. 5 is the stereoscopic schematic diagram of upper mold in Fig. 1；
Fig. 6 is upper mold broken section stereoscopic schematic diagram in Fig. 5；
Fig. 7 is the vertical of the cupping tool (when blank holder pushes down flitch) in Fig. 1 with adjustable constant force elastic blank holding mechanism
Body schematic diagram；
Fig. 8 is the broken section stereoscopic schematic diagram of the cupping tool in Fig. 7 with adjustable constant force elastic blank holding mechanism；
Fig. 9 is the enlarged diagram of part B in Fig. 8；
Figure 10 is the vertical of the cupping tool (when elastic pressure holding piece compresses) in Fig. 1 with adjustable constant force elastic blank holding mechanism
Body schematic diagram；
Figure 11 is the broken section stereoscopic schematic diagram of the cupping tool in Figure 10 with adjustable constant force elastic blank holding mechanism；
Figure 12 is the enlarged diagram of Local C in Figure 11；
Figure 13 is the solid of the cupping tool (when mold drawing is completed) in Fig. 1 with adjustable constant force elastic blank holding mechanism
Schematic diagram；
Figure 14 is the broken section stereoscopic schematic diagram of the cupping tool in Figure 13 with adjustable constant force elastic blank holding mechanism；
Figure 15 is the enlarged diagram of part D in Figure 14；
Figure 16 is the stereoscopic schematic diagram of flanging driving device in Fig. 1 (maintaining structure without position)；
Figure 17 is the schematic cross-sectional view in Figure 16 along gear shaft axial direction；
Figure 18 is the schematic cross-sectional view in Figure 16 along gear shaft radial direction；
Figure 19 is the schematic perspective view of Figure 16 middle gear axis；
Figure 20 is the schematic perspective view of connector sleeve in Figure 16；
Figure 21 is the schematic perspective view of pressing plate fixed structure in Figure 16；
Figure 22 is the schematic perspective view of drawing punch-pin in Fig. 1；
Figure 23 is the schematic perspective view of lower die in Fig. 1.
Drawing reference numeral explanation:
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that if relating to directionality instruction (such as up, down, left, right, before and after ...) in the embodiment of the present invention,
Then directionality instruction be only used for explain under a certain particular pose (as shown in the picture) between each component relative positional relationship,
Motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
In addition, being somebody's turn to do " first ", " second " etc. if relating to the description of " first ", " second " etc. in the embodiment of the present invention
Description be used for description purposes only, be not understood to indicate or imply its relative importance or implicitly indicate indicated skill
The quantity of art feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy
Sign.It in addition, the technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
It is enough realize based on, will be understood that the knot of this technical solution when conflicting or cannot achieve when occurs in the combination of technical solution
Conjunction is not present, also not the present invention claims protection scope within.
The present invention provides a kind of cupping tool with adjustable constant force elastic blank holding mechanism, and Fig. 1 is mentioned to 23 for the present invention
The schematic diagram of one embodiment of the cupping tool with adjustable constant force elastic blank holding mechanism supplied.
Also referring to Fig. 1, Fig. 2, Fig. 7, Figure 10 and Figure 13, the drawing with adjustable constant force elastic blank holding mechanism
Mold 100 includes upper mold 2, lower die 3 and elastic blank holding structure 4, wherein the lower die 3 includes lower template 3a, and is set to described
The upper end feed plate a of the drawing cavity plate 31 of the upper end lower template 3a, the drawing cavity plate 31 is shelved, and the upper mold 2 includes cope plate
2a, and set on the lower end cope plate 2a and vertically to the drawing punch-pin 21 of extension, the cope plate 2a vertically pacifies to activity
Loaded on the lower template 3a, and the corresponding drawing cavity plate 31 of the drawing punch-pin 21 is arranged, and the elastic blank holding structure 4 includes
Blank holder 41 and elastic pressure holding piece 42 set on 41 upper end of blank holder, the blank holder 41 are hung to the cope plate upwards
The inner hole of 2a, the blank holder 41 are worn with for the drawing punch-pin 21, and the elasticity pressure holding piece 42 has un-compressed
Free position and the compression position for maintaining the first deformation, during the upper mold 2 moves down, the elasticity pressure holding piece 42 is from institute
It states free position and switches to the compression position, the elasticity pressure holding piece 42 pushes against the edge that the blank holder 41 compresses flitch a,
The drawing punch-pin 21 pushes against flitch a and enters progress drawing operation in the drawing cavity plate 31.
In technical solution provided by the invention, the elasticity pressure holding piece 42 has un-compressed free position and maintains the
The compression position of one deformation, during the upper mold 2 moves down, the elasticity pressure holding piece 42 is switched to from the free position
The compression position, the elasticity pressure holding piece 42 push against the edge that the blank holder 41 compresses flitch a, and the drawing punch-pin 21 supports
Tight flitch a, which enters in the drawing cavity plate 31, carries out drawing operation, and the pressure-pad-force of the blank holder 41 corresponds to the elasticity pressure holding
The deformation quantity of part 42, during mold downward drawing operation, the maintenance deformation quantity of the elasticity pressure holding piece 42 is constant, so that
The pressure-pad-force that the blank holder 41 presses the flitch a is constant all the time, and is reduced flitch a by the risk of drawing crack, is reduced finished product
Rejection rate and cost.
It should be noted that power-conversion is the pushing of the upper mold 2 by transmission mechanism by power source in the present invention
Power balances lower pressure, reality of the invention to obtain the cupping tool 100 with adjustable constant force elastic blank holding mechanism
It applies in example, guide frame 6 is equipped between the cope plate 2a and the lower template 3a, the guide frame 6 is described to be oriented to
Cope plate 2a, in general, the guide frame 6 is arranged multiple, and is distributed in institute vertically to being movably installed in the lower template 3a
State the side cope plate 2a, in the present embodiment, the guide frame 6 is provided that two, certainly, does not limit the guide frame 6
Number, theoretically, under the premise of not considering other factors, as long as space meet, be arranged as much as possible, balance pressure
Effect is more preferable, by the way that multiple guide frames 6 are arranged, can make local lower pressure it is evenly dispersed be in a face pushing
Power, the forming convenient for mold to fabricated part.
Specifically, the guide frame 6 includes the guide sleeve 61 and guide post 62 of mutually socket setting, the guide sleeve 61
With guide post 62, one of them is set to the cope plate 2a, another is set to the lower template 3a, for the ease of guiding knot
The long-term movable contact of two components in structure 6, for example, in the part of the contact, the guide sleeve 61 and guide post 62
It can be set as metal material, such as abrasion-resistant stee simultaneously, naturally it is also possible to which profit is added in selection between the contact surface of two metals
The modes such as lubricating oil rouge.
In addition, it is necessary to which explanation, please refers to Fig. 5 to Fig. 6, the cope plate 2a can be the list with biggish thickness
One plate, being also possible to the cope plate 2a includes cope plate ontology 21a, the backing plate below the cope plate ontology 21a
22 and the punch retainer 23 set on 22 lower section of the backing plate, the drawing punch-pin 21 be fixed on the punch retainer 23
Lower section, between the backing plate 22 and the cope plate ontology 21a formed a first up-small and down-big limiting slot, it is described first limit
Being mounted in the slot of position has die shank 24, for connecting press machine, also sets between the cope plate ontology 21a and the die shank 24
There is spline structure, prevent the die shank 24 from rotating relative to the cope plate ontology 21a, such as can be first limiting slot
It is set as rotation stop groove, the lower end of the die shank 24 is set as the rotation stop cooperated with the rotation stop groove protrusion, plays the role of rotation stop,
The mode of rotation stop pin still can be set, e.g., in the friendship of the lateral surface of the medial surface and die shank 24 of first limiting slot
Mounting hole is set at boundary, and the rotation stop pin is set in the mounting hole, realizes rotation stop effect, the backing plate 22 and the punch-pin
A second up big and down small limiting slot is formed between fixed plate 23, being mounted in second limiting slot has the drawing punch-pin
21, it also is provided with spline structure between the punch retainer 23 and the drawing punch-pin 21, prevents 21 phase of the drawing punch-pin
The punch retainer 23 is rotated, such as can be and set rotation stop groove, the drawing punch-pin 21 for second limiting slot
Upper end be set as with the rotation stop groove cooperate rotation stop protrusion, play the role of rotation stop, can also still, setting rotation stop pin side
E.g. mounting hole is arranged in the medial surface of second limiting slot and the intersection of 21 lateral surface of drawing punch-pin in formula, described to stop
It ships and resell on another market and is set in the mounting hole, realize rotation stop effect, the blank holder 41 is hung to the cope plate 2a upwards is mainly
Realized by hanging screw rod 25, it is described hang screw rod 25 and be limited be connected to the cope plate 2a, be arranged in the upper mold 2 and hang
Slot 231 in the present embodiment, i.e., hangs slot 231 described in setting on the punch retainer 23, the slot 231 that hangs is presented greatly
Lower small stair is arranged to form limiting stand terrace upward, described to hang screw rod 25 during the cope plate 2a is moved down
By the limiting stand terrace limit be placed on the cope plate 2a so that the blank holder 41 under gravity with
It is displaced downwardly to the cope plate 2a and is contacted with the flitch a, it is described to hang spiral shell during the cope plate 2a continues to move down
Bar 25 does not move, and separates with the movement of the cope plate 2a, at this point, will not be transferred to the press force of the cope plate 2a described
Blank holder 41 acts on the blank holder 41 for the elastic pressure holding piece 42 and makees place mat.
In the present embodiment, the elasticity pressure holding piece 42, which is compressed and maintained the compression position of the first deformation, to be driven by flanging
Dynamic device 5 realizes, specifically, described with adjustable constant force elastic blank holding mechanism also referring to Figure 16 to Figure 21
Cupping tool 100 further include flanging driving device 5 (in the present embodiment, the flanging driving device 5 be arranged it is multiple, and along described
The circumferentially-spaced laying of drawing cavity plate 31), the flanging driving device 5 includes that rotary pressure plate 51 and position maintain structure 52,
In, the installation of rotary pressure plate 51 to the lower template 3a, and it is located at the outside of the blank holder 41, the rotary pressure plate 51 can
Vertically to rotation, the rotary pressure plate 51, which has initial makeup location and can turn to, to be compressed the elastic pressure holding piece 42 and makes
The pressure holding position of first deformation occurs for the elasticity pressure holding piece 42, and the position maintains structure 52 in the rotary pressure plate 51
It is rotated by the initial makeup location to when contacting the elastic pressure holding piece 42 and continuing rotation to the pressure holding position, it is corresponding
When first deformation occurs for the elasticity pressure holding piece 42, maintain the pressure holding position of the rotary pressure plate 51 constant, it is corresponding to maintain
The compression position that first deformation occurs for the elasticity pressure holding piece 42 is constant, to maintain the blank holder 41 to apply flitch a
Pressure-pad-force it is constant.
Specifically, the flanging driving device 5 includes two brackets 53, gear shaft 54, connector sleeve 55, pressing plate fixed structure
57 and rack gear 59, wherein for two brackets 53 in being oppositely arranged, two brackets 53 are set to the lower template 3a, and position
In the outside of the blank holder 41, the gear shaft 54 is set to two institutes in setting, 54 rotating turret of gear shaft is laterally extended
It states on bracket 53, one end of the gear shaft 54 is equipped with toothed region 541, and the connector sleeve 55 is sheathed on the gear shaft 54,
Coupled between the connector sleeve 55 and the gear shaft 54 by the first connecting key 56, the pressing plate fixed structure 57 includes being arranged
It is equipped with the rotary pressure plate 51 in the side surface of the rotating ring 57a, the rotating ring 57a in the outside of the connector sleeve 55, it is described
Coupled between rotating ring 57a and the connector sleeve 55 by the second connecting key 58, the rack gear 59 is extended in upward and downward, institute
The upper end for stating rack gear 59 is set to the cope plate 2a, and the rack gear 59 is engaged with the toothed region 541, the cope plate 2a's
In folding process, the rack gear 59 drives the gear shaft 54 to rotate, to drive the connector sleeve 55 and the rotary pressure plate 51
Rotation, so that the rotary pressure plate 51 compresses the elastic pressure holding piece 42 and makes the elastic pressure holding piece 42 that elastic deformation occur,
The rotary pressure plate 51 keeps the pressure holding position constant, so that the elasticity under the action of position maintains structure 52
Pressure holding piece 42 maintains the first deformation constant, so that the blank holder 41 has constant pressure-pad-force.
In the embodiment of the present invention, the rack gear 59 engages always with the toothed region 541 of the gear shaft 54, the position
Maintaining structure 52 is exactly to disconnect the gear shaft 54 to the rotary pressure plate 51 when the cope plate 2a is moved down to a certain extent
Effect, specifically, further referring to Figure 16 to Figure 21, the position maintain structure 52 include upward and downward be extended the
One limit plate 521, the upper end of first limit plate 521 are installed on the lower end surface of the cope plate 2a, first limit plate
There are two the position limit arm 5211 of internal and external partition setting, the gear shaft 54 is set 521 tools on the side surface of the toothed region 541
There is the first mounting groove 542, sinks in first mounting groove 542 and be equipped with elastic component 543, it is corresponding on the side surface of the connector sleeve 55
First mounting groove 542 is equipped with the second mounting groove 551, actuator 552 is equipped in second mounting groove 551, in the drive
First connecting key 56 is equipped between moving part 552 and the elastic component 543, one end of first connecting key 56 is set to described
It in first mounting groove 542, and pushes against and is arranged with the elastic component 543, the other end of first connecting key 56 is set to described the
It in two mounting grooves 551, and pushes against and is arranged with the actuator 552, installed on the side surface of the connector sleeve 55 with described second
The opposite place of slot 551 is equipped with rotation stop plane 553, and the actuator 552 has initial position and activation point, in the initial bit
It sets, the rotary pressure plate 51 is corresponding to be in the initial makeup location, in the activation point, the rotation stop plane 553 and institute
The cooperation of position limit arm 5211 is stated, in the folding process of the cope plate 2a, the rack gear 59 drives the gear shaft 54 to rotate, with
The connector sleeve 55 and the rotary pressure plate 51 is driven to rotate, the rotary pressure plate 51 is rotated by the initial makeup location to connecing
When touching the elastic pressure holding piece 42 and continuing rotation to the pressure holding position, the first shape occurs for the corresponding elastic pressure holding piece 42
When change, at this point, the actuator 552 is rotated by the initial position to the activation point with the connector sleeve 55, wherein it
One position limit arm 5211 compresses the actuator 552 towards the movement of the direction of first mounting groove 542, so that described first
Connecting key 56 is heavy to be set in first mounting groove 542, and the connection of the connector sleeve 55 and the gear shaft 54, Ling Yisuo are disconnected
It states position limit arm 5211 and the rotation stop plane 553 cooperates, maintain the pressure holding position constant to limit the rotary pressure plate 51, it is right
The compression position that should maintain the elastic pressure holding piece 42 that the first deformation occurs is constant, to maintain the blank holder 41 to flitch
The pressure-pad-force that a applies is constant.
It should be noted that the setting of the rotation stop plane 553 and the actuator 552, can be with described in two
When position limit arm 5211 contacts, on the outside, the actuator 552 is also possible to the rotation stop in inside to the rotation stop plane 553
Plane 553 is in inside, and on the outside, above be all the embodiment of the present invention to the actuator 552.
The actuator 552 is detached from second mounting groove 551 in order to prevent, in the present embodiment, second mounting groove
551 are radially arranged in step along the connector sleeve 55, the biggish big installation in section including being connected to 55 inner cavity of connector sleeve
The lesser small mounting groove section 5512 in section of slot section 5511 and the connection big mounting groove section 5511, the actuator 552 is along institute
It states connector sleeve 55 to be radially arranged in step, including lesser second drive section of biggish first drive section 5521 in section and section
5522, first drive section 5521 is mounted in the big mounting groove section 5511, so set, being mounted described
Actuator 552, it is therefore prevented that the actuator 552 is detached from second mounting groove 551, has preferable effect.
In the embodiment of the present invention, when the factor that thickness and ingredient of flitch a etc. influence its anti-unstability ability changes,
Part pressure-pad-force needed for drawing process will change, and first deformation of the elasticity pressure holding piece 42 is adjustable
It is the contents of the present invention, specifically, the outside of the connector sleeve 55 is circumferentially arranged with multiple first installation keyways 554, the rotation
The inner wall of change 57a is equipped with the second installation keyway 573, and one end of second connecting key 58 is set to the second installation keyway
In 573, and corresponding the first installation keyway 554 of selecting of the other end of second connecting key 58 is installed, to change the rotation
Turn the angle between the initial makeup location of pressing plate 51 and the initial position of the actuator 552, so that the rotation
The pressure holding position for turning pressing plate 51 is adjustable, and the compression position that the first deformation occurs for the corresponding elastic pressure holding piece 42 can
It adjusts, the pressure-pad-force that the corresponding blank holder 41 applies flitch a is adjustable, corresponding to adjust 521 distance of the first limit plate
The distance of upward and downward between the connector sleeve 55, to maintain the pressure holding position of the rotary pressure plate 51 after the adjustment constant,
The compression position that first deformation occurs after adjusting for the corresponding maintenance elastic pressure holding piece 42 is constant, to maintain the blank holder
The pressure-pad-force adjusted that 41 couples of flitch a apply is constant, and a secondary mold is adapted to the occasion of different pressure-pad-forces, widens
The job area of the cupping tool 100 with adjustable constant force elastic blank holding mechanism, improves the production efficiency of part,
With preferable effect.
Second connecting key 58 is selected the first installation keyway 554 and is installed for convenience, in the embodiment of the present invention,
The rotating ring 57a is made of two semiorbicular semi-rings, and specifically, the rotating ring 57a includes the first rotation semi-ring 571
And the second rotation semi-ring 572, wherein the first rotation semi-ring 571 is equipped with the rotary pressure plate 51, second rotation half
Ring 572 and described first rotates the inner cavity that the fastening of semi-ring 571 formation one is worn for the connector sleeve 55, and setting is in two semi-rings
Form is easily installed the rotating ring 57a, in addition, the initial makeup location that needs to adjust the rotary pressure plate 51 with
When angle between the initial position of the actuator 552, the rotating ring 57a can be easily dismantled, adjustment is worked as
When to proper angle, then the rotating ring 57a is installed, peace is torn open simple, conveniently.
After the completion of drawing operation, for the ease of the demoulding of the part after drawing, in the embodiment of the present invention, Figure 22 is please referred to
And Figure 23, mainly realized by the way that demolding structure is arranged with external air pressure inside balance elements and in Drawing Hole 311,
Specifically, the lower end surface of the drawing punch-pin 21 is equipped with the first air hole 211, and the upper end side surface of the drawing punch-pin 21 is equipped with
Second air hole 212, first air hole 211 are connected with second air hole 212, so set, reduce part with
A possibility that there are negative pressure between the drawing punch-pin 21 facilitates the separation between part and the drawing punch-pin 21.
In addition, the upper surface of the drawing cavity plate 31 is equipped with a Drawing Hole 311 worn for the drawing punch-pin 21, it is described
Drawing Hole 311 is arranged in down big up small step, during the drawing punch-pin 21 moves up, will drive part and moves up together,
When encountering step Drawing Hole 311, part is limited by stepped hole, is detached from, and facilitates demoulding, has preferable effect.
Before carrying out drawing operation, need to position flitch a, in embodiment provided by the invention, the drawing
The upper surface of cavity plate 31 is equipped with position limiting structure 312, and the position limiting structure 312 includes two second be laterally extended being oppositely arranged
Limit plate 3121, two second limit plates 3121 are to enclose the upper material space for being set as feed plate a and shelving, by the material
The limit of plate a improves the qualification rate of drawing operation part, is also convenient for improving production efficiency.
Hereinafter, in conjunction with described in the specific drawing and forming of cupping tool 100 with adjustable constant force elastic blank holding mechanism
The process of fabricated part, is described in detail below:
1, feeding: please referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Figure 23, flitch a is placed in the upper material space, flitch a is put
It is placed in the upper surface of the drawing cavity plate 31, at this point, the upper mold 2 is located at the top of the lower die 3；
2, blank holder 41 pushes down flitch a: please referring to Fig. 7 to Fig. 9, the upper mold 2 moves downward, and the blank holder 41 is certainly
It is moved downward therewith under the action of weight, until flitch a is pushed down, meanwhile, under the promotion of the upper mold 2, the rack gear 59 is driven
The gear shaft 54 rotates, and the gear shaft 54 drives the connector sleeve 55 to rotate, and the connector sleeve 55 drives the rotation to press
Plate 51 rotates；
3, elastic 42 deformation of pressure holding piece to the first deformation position and remains unchanged: please referring to Figure 10 to Figure 12, the upper mold 2
Continuing to move downward, the rotary pressure plate 51 turns to the contact elastic pressure holding piece 42, and the rotary pressure plate 51 continues to rotate,
Make the elastic pressure holding piece 42 that elastic deformation occur, the pressure-pad-force of the blank holder 41 increases always at this time, the rotary pressure plate
51 are rotated by the initial makeup location to when contacting the elastic pressure holding piece 42 and continuing rotation to the pressure holding position, are corresponded to
The elastic pressure holding piece 42 when the first deformation occurs, at this point, the actuator 552 is with the connector sleeve 55 by the initial bit
Rotation is set to the activation point, one of them described position limit arm 5211 compresses the actuator 552 towards first installation
The direction of slot 542 is mobile, is set in first mounting groove 542 so that first connecting key 56 is heavy, disconnects the connector sleeve
55 with the connection of the gear shaft 54, another position limit arm 5211 cooperates with the rotation stop plane 553, to limit the rotation
Pressing plate 51 maintains the pressure holding position constant, the corresponding compression position for maintaining the elastic pressure holding piece 42 that the first deformation occurs
It is constant, it is constant with the pressure-pad-force for maintaining the blank holder 41 to apply flitch a.
4, drawing operation: please referring to Figure 13 to Figure 15, and the upper mold 2 continues to move downward, in the promotion of the upper mold 2
Under, the drawing punch-pin 21 is contacted with the flitch a, and the flitch a is driven to enter in Drawing Hole 311, carries out drawing operation；
5, backhaul stripping operation: the upper mold 2 moves upwards, and formation of parts is limited by step Drawing Hole 311, with it is described
Drawing punch-pin 21 is detached from, at this point, the rack gear 59 moves up, the gear shaft 54 is driven to invert, at this point, first limit
Plate 521 and the connector sleeve 55 cooperate, and the drive connection between the connector sleeve 55 and the gear shaft 54 is in discrete state；
6, elastic 42 deformation of pressure holding piece restores: the upper mold 2 continues up, first limit plate 521 with it is described
Connector sleeve 55 separates, and the drive connection between the connector sleeve 55 and the gear shaft 54 is restored, and the rotary pressure plate 51 starts
It rotates backward, the elastic deformation of the elasticity pressure holding piece 42 is gradually recovered；
7, mold restores to job state: the upper mold 2 continues up, and all components of mold are restored to initial shape
State is ready for the drawing flow chart of next part.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this
Under the design of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/it is used in it indirectly
He is included in scope of patent protection of the invention relevant technical field.
Claims (10)
1. a kind of cupping tool with adjustable constant force elastic blank holding mechanism characterized by comprising
Lower die, including lower template, and the drawing cavity plate set on the lower template upper end, the upper end feed plate of the drawing cavity plate
It shelves；
Upper mold, including cope plate, and set on the cope plate lower end and vertically to the drawing punch-pin of extension, the cope plate
Vertically to being movably installed in the lower template, and the drawing punch-pin corresponds to the drawing cavity plate setting；And
Elastic blank holding structure, the elastic pressure holding piece including blank holder and set on the blank holder upper end, the blank holder are hung upwards
Set to the cope plate, the inner hole of the blank holder is worn with for the drawing punch-pin, it is described elasticity pressure holding piece have not by
The free position of compression and the compression position for maintaining the first deformation；
Wherein, during the upper mold moves down, the elasticity pressure holding piece switches to the compressed-bit from the free position
It sets, the elasticity pressure holding piece pushes against the edge that the blank holder compresses flitch, and the drawing punch-pin pushes against flitch and enters the drawing
Drawing operation is carried out in deep cavity plate.
2. as described in claim 1 with the cupping tool of adjustable constant force elastic blank holding mechanism, which is characterized in that further include
Flanging driving device, the flanging driving device include:
Rotary pressure plate, installation are located at the outside of the blank holder to the lower template, and the rotary pressure plate can be vertically to turning
Dynamic, the rotary pressure plate, which has initial makeup location and can turn to, to be compressed the elastic pressure holding piece and makes the elastic pressure holding piece
The pressure holding position of the first deformation occurs；And
Position maintains structure, to be rotated by the initial makeup location to contacting the elastic pressure holding piece in the rotary pressure plate
And when continuing rotation to the pressure holding position, when the first deformation occurs for the corresponding elastic pressure holding piece, the rotation pressure is maintained
The pressure holding position of plate is constant, and the corresponding compression position for maintaining the elastic pressure holding piece that the first deformation occurs is constant, with
The pressure-pad-force for maintaining the blank holder to apply flitch is constant.
3. as claimed in claim 2 with the cupping tool of adjustable constant force elastic blank holding mechanism, which is characterized in that the pressure
Side driving device further include:
Two brackets being oppositely arranged, two branch are set up in the lower template, and are located at the outside of the blank holder；
The gear shaft being laterally extended, the gear shaft rotating turret are set on two brackets, and one end of the gear shaft is equipped with
Toothed region；
Connector sleeve is sheathed on the gear shaft, passes through the first connection key connecting between the connector sleeve and the gear shaft；
The side surface of pressing plate fixed structure, the rotating ring in the outside including being sheathed on the connector sleeve, the rotating ring is equipped with institute
Rotary pressure plate is stated, passes through the second connection key connecting between the rotating ring and the connector sleeve；And
Rack gear is extended in upward and downward, and the upper end of the rack gear is set to the cope plate, and the rack gear is nibbled with the toothed region
It closes, in the folding process of the cope plate, the rotation of gear shaft described in the rack drives, to drive the connector sleeve and described
Rotary pressure plate rotation, so that the rotary pressure plate compresses the elastic pressure holding piece and makes the elastic pressure holding piece that elastic shape occur
Become.
4. as claimed in claim 3 with the cupping tool of adjustable constant force elastic blank holding mechanism, which is characterized in that institute's rheme
Setting and maintaining structure includes the first extended limit plate of upward and downward, and the upper end of first limit plate is installed on the cope plate
Lower end surface, there are two the position limit arms of internal and external partition setting for first limit plate tool；
The gear shaft is equipped with the first mounting groove adjacent to the side surface of the toothed region, sinks in first mounting groove and is equipped with bullet
Property part；
First mounting groove is corresponded on the side surface of the connector sleeve and is equipped with the second mounting groove, is equipped in second mounting groove
Actuator is equipped with first connecting key between the actuator and the elastic component, and one end of first connecting key is set
It in first mounting groove, and pushes against and is arranged with the elastic component, the other end of first connecting key is set to described second
It in mounting groove, and pushes against and is arranged with the actuator, place opposite with second mounting groove is set on the side surface of the connector sleeve
There is rotation stop plane, the actuator has initial position and activation point, in the initial position, the rotary pressure plate corresponding position
In the initial makeup location, in the activation point, the rotation stop plane and the position limit arm cooperate；
In the folding process of the cope plate, the rotation of gear shaft described in the rack drives, to drive the connector sleeve and institute
State rotary pressure plate rotation, the rotary pressure plate is rotated by the initial makeup location to contacting the elastic pressure holding piece and continue to revolve
When going to the pressure holding position, when the first deformation occurs for the corresponding elastic pressure holding piece, at this point, the actuator is with the company
Female connector is rotated by the initial position to the activation point, one of them described position limit arm compresses the actuator described in
The direction of first mounting groove is mobile, is set in first mounting groove so that first connecting key is heavy, disconnects the connector sleeve
With the connection of the gear shaft, another position limit arm and the rotation stop plane cooperate, and maintain institute to limit the rotary pressure plate
State that pressure holding position is constant, the corresponding compression position for maintaining the elastic pressure holding piece that the first deformation occurs is constant, to maintain
It is constant to state the pressure-pad-force that blank holder applies flitch.
5. as claimed in claim 4 with the cupping tool of adjustable constant force elastic blank holding mechanism, which is characterized in that described the
Two mounting grooves are radially in step setting, the biggish big installation in section including being connected to the inner cavity of connecting sleeve along the connector sleeve
The lesser small mounting groove section in section of slot section and the connection big mounting groove section；
The actuator along the connector sleeve be radially in step setting, including biggish first drive section in section and section it is smaller
The second drive section, first drive section is mounted in the big mounting groove section.
6. as claimed in claim 4 with the cupping tool of adjustable constant force elastic blank holding mechanism, which is characterized in that the company
The outside of female connector is circumferentially arranged with multiple first installation keyways；
The inner wall of the rotating ring is equipped with the second installation keyway；
One end of second connecting key is set in the second installation keyway, and the other end correspondence of second connecting key is selected
The one first installation keyway installation, to change described in the initial makeup location and the actuator of the rotary pressure plate
Angle between initial position, so that the pressure holding position of the rotary pressure plate is adjustable, the corresponding elastic pressure holding piece occurs
The compression position of first deformation is adjustable, and the pressure-pad-force that the corresponding blank holder applies flitch is adjustable；
The corresponding distance for adjusting the first limit plate upward and downward between the connector sleeve, to maintain the rotary pressure plate to exist
The pressure holding position adjusted is constant, and the compressed-bit of the first deformation occurs after the corresponding maintenance elastic pressure holding piece adjustment
Set it is constant, it is constant with the pressure-pad-force adjusted for maintaining the blank holder to apply flitch.
7. as claimed in claim 6 with the cupping tool of adjustable constant force elastic blank holding mechanism, which is characterized in that the rotation
Change includes:
First rotation semi-ring, the first rotation semi-ring are equipped with the rotary pressure plate；And
Second rotation semi-ring fastens to form an inner cavity worn for the connector sleeve with the first rotation semi-ring.
8. the cupping tool with adjustable constant force elastic blank holding mechanism as described in claim 2 to 7 any one, feature
It is, the flanging driving device setting is multiple, and along the circumferentially-spaced laying of the drawing cavity plate.
9. as described in claim 1 with the cupping tool of adjustable constant force elastic blank holding mechanism, which is characterized in that the drawing
The upper surface of deep cavity plate is equipped with a Drawing Hole worn for the drawing punch-pin, and the Drawing Hole is set in down big up small step
It sets；Alternatively,
The lower end surface of the drawing punch-pin is equipped with the first air hole, and it is ventilative that the upper end side surface of the drawing punch-pin is equipped with second
Hole, first air hole are connected with second air hole.
10. as described in claim 1 with the cupping tool of adjustable constant force elastic blank holding mechanism, which is characterized in that described
The upper surface of drawing cavity plate is equipped with position limiting structure, and the position limiting structure includes two the second limits being laterally extended being oppositely arranged
Plate, two second limit plates are to enclose the upper material space for being set as feed plate and shelving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811266077.8A CN109365639B (en) | 2018-10-26 | 2018-10-26 | Deep drawing die with adjustable constant force elastic edge pressing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811266077.8A CN109365639B (en) | 2018-10-26 | 2018-10-26 | Deep drawing die with adjustable constant force elastic edge pressing mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109365639A true CN109365639A (en) | 2019-02-22 |
| CN109365639B CN109365639B (en) | 2020-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811266077.8A Active CN109365639B (en) | 2018-10-26 | 2018-10-26 | Deep drawing die with adjustable constant force elastic edge pressing mechanism |
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| Country | Link |
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| CN (1) | CN109365639B (en) |
Cited By (4)
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| CN110228146A (en) * | 2019-06-25 | 2019-09-13 | 郑益隆 | A kind of plastic garbage crushing device |
| CN112207182A (en) * | 2020-10-14 | 2021-01-12 | 东风汽车有限公司 | There is die-cut mould of earhole of ear retaining ring processing line |
| CN114733951A (en) * | 2022-03-25 | 2022-07-12 | 深圳大学 | Lower die structure and temperature-controllable edge pressing progressive forming die |
| CN115318920A (en) * | 2022-10-12 | 2022-11-11 | 南通佳晟宏机械配件有限公司 | Self-adaptive stamping equipment |
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| CN110228146A (en) * | 2019-06-25 | 2019-09-13 | 郑益隆 | A kind of plastic garbage crushing device |
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| CN114733951B (en) * | 2022-03-25 | 2024-01-23 | 深圳大学 | Lower die structure and temperature-controllable edge pressing stage progressive forming die |
| CN115318920A (en) * | 2022-10-12 | 2022-11-11 | 南通佳晟宏机械配件有限公司 | Self-adaptive stamping equipment |
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|---|---|
| CN109365639B (en) | 2020-08-25 |
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Effective date of registration: 20221110 Address after: 230000 b-1018, Woye Garden commercial office building, 81 Ganquan Road, Shushan District, Hefei City, Anhui Province Patentee after: HEFEI WISDOM DRAGON MACHINERY DESIGN Co.,Ltd. Address before: 430023 No. 68, Xuefu Road, Changqing Garden, Dongxihu District, Wuhan, Hubei Patentee before: WUHAN POLYTECHNIC University |
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Effective date of registration: 20221229 Address after: 321000 The first floor on the east side of No. 3 Factory Building, No. 918, Shenli Road, Qiubin Street, Wucheng District, Jinhua City, Zhejiang Province (self declared) Patentee after: Jinhua Yutuo Mold Co.,Ltd. Address before: 230000 b-1018, Woye Garden commercial office building, 81 Ganquan Road, Shushan District, Hefei City, Anhui Province Patentee before: HEFEI WISDOM DRAGON MACHINERY DESIGN Co.,Ltd. |