CN209902054U - Blind window and non-blind window state switching device - Google Patents
Blind window and non-blind window state switching device Download PDFInfo
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- CN209902054U CN209902054U CN201920363550.8U CN201920363550U CN209902054U CN 209902054 U CN209902054 U CN 209902054U CN 201920363550 U CN201920363550 U CN 201920363550U CN 209902054 U CN209902054 U CN 209902054U
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Abstract
The utility model relates to a blind window and non-blind window state switching device, which comprises an upper die component, an upper die and a lower die component, wherein the upper die component is fixed in an upper die of a die punching machine tool, and the lower part of the upper die component and the upper die component forms an open sliding space; the driving component is fixed in the upper die, and the output end of the driving component is inserted into one side of the sliding space and can slide; one end of the sliding component is connected with the output end of the driving component and can slide in the sliding space, and a cushion block is arranged at the bottom of the sliding component; the trimming and punching component is hung on the upper die through a sleeve type limiting screw, is positioned at the bottom of the sliding component, and is provided with an insert block with a changeable contact area with the cushion block at the top; so as to realize that the bottom of the trimming and punching component is positioned in the cavity of the pressing component or extends out of the cavity of the pressing component. The switching between the two states of the blind window and the non-blind window is realized by changing one set of die on the basis of the original die punching machine tool, two sets of dies are not required to be manufactured, the die cost is saved, the manufacturing period is shortened, and the processing cost is reduced.
Description
Technical Field
The utility model relates to a technical field is made to the die, and more specifically the back door blind window and non-blind window state auto-change over device that says so relates to in the vehicle.
Background
Currently, the outer rear door panel in a vehicle includes two states, a blind window state and a non-blind window state. Namely, the upper part of the rear door is hollow, and glass needs to be installed; one state is that the rear door panel is fully closed. In the prior art, two sets of trimming and punching dies are generally adopted, wherein one set of trimming and punching die is used in a blind window state, and the other set of trimming and punching die is special for a non-blind window state. However, in the prior art, two sets of dies are adopted, so that the die manufacturing period is long and the manufacturing cost is high; meanwhile, in the production process, the die needs to be replaced according to different die punching states, so that the processing time is wasted.
Therefore, how to provide a device for switching between a blind window state and a non-blind window state in a die for an outer plate of a rear door in a vehicle is a problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a blind window and non-blind window state auto-change over device has solved in the vehicle in the die of back door blind window and non-blind window state need different moulds carry out the deburring technical problem that punches a hole.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the blind window and non-blind window state switching device is used for die stamping processing of a rear door in a vehicle in a blind window state and a non-blind window state; the method comprises the following steps:
the upper die assembly is fixed in an upper die of the die stamping machine tool and forms a sliding space with an opening at the lower part with the upper die;
the driving component is fixed in the upper die, and the output end of the driving component is inserted into one side of the sliding space and can slide;
one end of the sliding component is connected with the output end of the driving component and can slide in the sliding space, and a cushion block is arranged at the bottom of the sliding component;
the trimming and punching component is hung on the upper die through a sleeve type limiting screw, is positioned at the bottom of the sliding component, and is provided with an insert block with a changeable contact area with the cushion block at the top; so that the bottom of the trimming and punching component is positioned in a cavity of the material pressing component of the punching die or extends out of the cavity of the material pressing component.
The blind window and non-blind window state switching device that this application provided is located the mould and presses between the material part on the die lathe.
According to the technical scheme, compare with prior art, the utility model provides a blind window and non-blind window state auto-change over device, because last mould subassembly with last mould constitute the lower part have open sliding space, sliding assembly passes through the drive assembly drive slidable in sliding space, from this through change the cushion and insert between area of contact (change and repair towards the subassembly along the ascending high lift of vertical side), realized repairing towards the die cavity that the subassembly bottom is located last mould or stretch out the die cavity of mould: in the non-blind window state punching die, the trimming and punching component extends out of the die cavity of the material pressing component to perform trimming and punching; in the blind window state punching die, the trimming punching component is kept in a cavity of the material pressing component, so trimming punching is not carried out in the punching die process, the requirement that one set of die is used for producing two parts is met by changing the die structure, two sets of dies do not need to be manufactured, the die cost is saved, the manufacturing period is shortened, and the processing cost is reduced.
Preferably, the upper die assembly includes: the top guide sliding plate, the side limiting plate and the end limiting block are arranged on the top of the frame;
the top guide sliding plate, the side limiting plate and the end limiting block are all provided with a plurality of through holes, the through holes are formed in the top of the top guide sliding plate and fixed in the upper die through bolts, and the lower portion of the top guide sliding plate and the lower portion of the upper die form an open sliding space. The top guide sliding plate can be a plurality of independent plate pieces or a plurality of plates arranged at certain intervals, and the side limiting plates can be two or four and arranged at certain intervals; the number of the end limiting blocks is two or four, and the end limiting blocks are also arranged according to a preset distance; the thickness and shape of the above components are selected according to the use condition.
Preferably, the sliding assembly comprises a sliding block body and a connecting plate;
the length of the sliding block body is less than that of the sliding space; the middle part of the slider body can be partially hollow, so that the weight of the part is reduced;
the cushion blocks comprise a plurality of cushion blocks, are fixed at the bottom of the sliding block body according to preset positions, and can change the contact area with the top of the trimming and punching assembly; wherein, the bottom end of the sliding block can be provided with a mounting position of the cushion block;
the connecting plate is fixed in a terminal surface of slider body, and is connected with drive assembly's output.
Preferably, the driving assembly comprises a driving piece, a floating joint and a driving piece mounting plate;
the driving piece is fixed on the driving piece mounting plate, and the output end of the driving piece is connected with one side of the floating joint;
the other side of the floating joint is connected with the connecting plate;
the driving piece mounting plate is close to the sliding space and is fixed in the upper die.
Preferably, the driving member is a cylinder, and an output end of the cylinder is inserted into the sliding space and connected with the connecting plate through a floating joint to drive the slider body to slide along the sliding space. Wherein the sum of the maximum moving distance of the cylinder and the maximum moving distance of the slider body is less than the total length of the sliding space.
Preferably, the trimming punch assembly comprises: the insert mounting seat, the trimming insert and the first nitrogen spring group;
the insert mounting seat is hung on the upper die through a sleeve type limiting screw, and a plurality of mounting grooves are formed in the bottom of the insert mounting seat; the mounting groove is positioned at the edge of the insert mounting seat; the insert is fixed on the top end face of the insert mounting seat, the number of the insert is the same as that of the cushion blocks, and the contact area can be changed;
the trimming insert is far away from the mounting groove and is fixed at the bottom of the insert mounting seat; the shape of the die is the same as that of a window to be punched;
the number of the first nitrogen spring groups is the same as that of the mounting grooves, and the first nitrogen spring groups are fixed in the mounting grooves.
Preferably, each first nitrogen spring group comprises a first nitrogen spring mounting seat, a first nitrogen spring and a first spring cushion block;
the first nitrogen spring mounting seat is fixed in the mounting groove;
one end of the first nitrogen spring is fixed at the bottom of the first nitrogen spring mounting seat;
the first spring cushion block is fixed on a material pressing component of the die punching machine tool and is abutted against the other end of the first nitrogen spring.
Wherein the specification of the nitrogen spring is selected according to the use condition.
The blind window and non-blind window state switching device provided by the utility model also comprises a second group of nitrogen spring groups, the number of which is the same as that of the first group of nitrogen spring groups, and the second group of nitrogen spring groups comprise a second nitrogen spring mounting plate, a second nitrogen spring and a second spring cushion block;
the second nitrogen spring mounting plate is close to the sliding space and is fixed on the upper die;
one end of the second nitrogen spring is arranged at the bottom of the second nitrogen spring mounting plate;
the second spring cushion block is fixed at the top of the insert mounting seat and is abutted against the other end of the second nitrogen spring.
The effect of adopting this scheme is: the second nitrogen spring fixed on the upper die is abutted against the second spring cushion block fixed on the insert mounting seat, so that the repairing and punching component and the sliding component keep a certain gap in a natural state, and the sliding component is ensured to slide between the sliding space and the repairing and punching component without obstacles, wherein the gap is 2-3 mm.
And the sum of the spring forces generated by the first nitrogen spring group is larger than the sum of the spring forces generated by the second nitrogen spring group.
The effect of adopting this scheme is: through being fixed in and repairing the first nitrogen spring that dashes the subassembly and fixing the first spring cushion butt that presses the material part, when making the mould punch the die under the blind window state, the strength that holds up and repair the subassembly is greater than the strength of second group nitrogen spring and the dead weight sum of repairing the subassembly, guarantees to repair and dashes the die cavity that the subassembly bottom is located between last mould and the material part.
Preferably, the utility model provides a blind window and non-blind window state auto-change over device still includes location portion, and location portion installs in last mould and between the mount pad of inserting, is favorable to controlling the trimming precision of punching a hole of die in-process deburring.
Preferably, the positioning part comprises a guide sleeve and a guide pillar which are in sliding fit;
the guide sleeves are fixed at the top of the insert mounting seat and are uniformly distributed at the top of the insert mounting seat;
the guide pillar is fixed on the upper die and matched with the guide sleeve.
The working process of the working state of the non-blind window specifically comprises the following steps:
and S1, installing a switching device on an upper die of the stamping die (keeping the initial positions of the cushion block of the sliding assembly and the insert of the trimming assembly to be staggered), installing the upper die on an upper sliding block of the stamping machine, and opening the upper sliding block of the stamping machine at the top dead center position. An operator toggles an air source switch of the punching machine tool to enable the air cylinder to be in an ejection state;
s2, the sliding block component connected with the cylinder moves along with the cylinder, so that the position of the cushion block at the bottom of the sliding block component corresponds to the position of the insert block at the top of the trimming and punching component;
s3, placing the workpiece in the lower die before stamping, and positioning by the die profile, the positioning pin and the positioning plate; the upper die of the punching machine moves downwards along with the machine tool slide block.
S4, the machine tool slide block moves downwards, the pressing part fixes a front stamping workpiece, the upper die moves downwards continuously along with the machine tool slide block after the pressing part is attached to the lower die and reaches the position of a bottom dead center, when the first nitrogen spring contacts the first nitrogen spring cushion block arranged on the pressing part, the insert mounting seat drives the insert to move upwards under the action of the first nitrogen spring, the insert mounting seat contacts the cushion block of the sliding assembly and prevents the trimming and punching assembly from moving upwards, the cutting edge height of the trimming and punching insert protrudes out of the upper die profile h2 at the moment, the trimming and punching assembly is in a working state and moves together with the upper die, when the upper die reaches the bottom dead center, the trimming and punching of the blind window part of the workpiece are finished, the waste of the blind window part slides out of the die together with.
S5, moving the upper die upwards, and separating the stamping workpiece from the pressing piece device and enabling the stamping workpiece to be in a supporting barrier-free state;
s6, jacking the stamped workpiece by the lower die supporting device of the die, and taking out the workpiece by a worker or a mechanical arm;
thereby completing a non-blind window state duty cycle.
The working process of switching from the non-blind window working state to the blind window working state specifically comprises the following steps:
t1, the switching device is installed on the upper die of the stamping die (the initial position of the cushion block of the sliding assembly and the insert of the trimming and punching assembly is the contact position in the non-blind window state), the upper die of the stamping die is installed on the sliding block of the stamping machine tool, and the sliding block of the machine tool is opened at the top dead center position. An operator toggles an air source switch of the punching machine tool to enable the air cylinder to be in a withdrawing state;
t2, the sliding block component connected with the cylinder moves along with the cylinder, so that the contact surface between the cushion block at the bottom of the sliding component and the insert at the top of the trimming and punching component is reduced due to the movement of the sliding component, and the final contact area is zero, namely, the lift of the trimming and punching component in the height direction is reduced relative to the non-blind window state;
t3, placing the workpiece before stamping into a lower die, and positioning by means of the die profile, the positioning pins and the positioning plates; the upper die of the punching machine moves downwards along with the machine tool slide block.
T4, a machine tool slide block descends, a pressing piece device fixes a front stamping workpiece, the upper die continues to descend along with the machine tool slide block after the front stamping workpiece is attached to a lower die and reaches a bottom dead center position, when a first nitrogen spring contacts a first nitrogen spring cushion block arranged on a pressing part, an insert mounting seat drives an insert to move upwards under the action of the first nitrogen spring, the contact area between the cushion block at the bottom of a sliding assembly and the insert at the top of a trimming and punching assembly is zero, and the sum of the spring forces of a first nitrogen spring group is larger than the sum of the spring forces of a second nitrogen spring group, so that the insert mounting seat continues to move upwards, the lift of the trimming and punching assembly in the height direction is reduced, the height of a cutting edge of the trimming and punching insert at the moment is smaller than the upper die cavity surface h1, the trimming and punching assembly is in.
T5, moving the upper die upwards, and separating the stamping workpiece from the pressing piece device and keeping the stamping workpiece in a supporting barrier-free state;
t6, ejecting the stamped workpiece by a lower die supporting device of the die, and then taking out the workpiece by a worker or a mechanical arm; thereby completing a blind window state duty cycle.
It is visible through above-mentioned working process, the utility model discloses a punching press lathe air supply control cylinder drives the slip subassembly and slides, changes the area of contact that cushion and insert (be the relative height who changes the relative mould cavity of punching the subassembly promptly for the change), has realized the change of blind window and non-blind window die state. Through the second nitrogen spring fixed on the upper die and the second spring cushion block fixed on the insert mounting seat, the repairing and punching component and the sliding component keep a certain gap in a natural state, and the sliding component is ensured to slide in a sliding space and between the repairing and punching components without obstacles. The first nitrogen spring fixed on the trimming and punching assembly is abutted against the first spring cushion block fixed on the material pressing part, so that when the die is stamped in a blind window state, the spring force of the lifting trimming and punching assembly is larger than the sum of the spring force of the second group of nitrogen springs and the self weight of the trimming and punching assembly, and the bottom of the trimming and punching assembly is ensured to be positioned in a cavity between the upper die and the pressing device. The positioning part is arranged between the upper die and the insert mounting seat and used for controlling trimming and punching precision in the stamping process.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of a blind window and non-blind window state switching device provided by the present invention;
fig. 2 is a schematic structural view of an upper die assembly and a driving assembly of the blind window and non-blind window state switching device provided by the present invention;
fig. 3 is a schematic structural diagram of a sliding block assembly of the blind window and non-blind window state switching device provided by the present invention;
fig. 4 is a perspective view (top portion) of a trimming and punching assembly of the blind window and non-blind window state switching device provided by the present invention;
fig. 5 is a perspective view (bottom) of a trimming and punching assembly of the blind window and non-blind window state switching device provided by the present invention;
FIG. 6 is an enlarged view of portion A of the drawing of FIG. 5;
fig. 7 is a schematic non-blind window state operation diagram of the blind window and non-blind window state switching device provided by the present invention;
fig. 8 is a schematic diagram of the blind window state operation of the blind window and non-blind window state switching device provided by the present invention;
fig. 9 is a schematic working diagram (non-blind window state) of the blind window and non-blind window state switching device provided by the present invention applied to the upper mold;
fig. 10 is a schematic view of the operation of the blind window/non-blind window state switching device applied to the upper die (blind window state).
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The embodiment of the utility model discloses blind window and non-blind window state auto-change over device has solved in the vehicle in the die of back door blind window and non-blind window state need different moulds carry out the deburring technical problem that punches a hole.
The blind window and non-blind window state switching device provided by the utility model is used in the die punching processing of the blind window state and the non-blind window state of the rear door in the vehicle, referring to the attached figures 1-6; the method comprises the following steps:
the upper die assembly 1 is fixed in an upper die 8 of the die stamping machine tool, and forms a sliding space with an opening at the lower part with the upper die 8;
the driving component 2 is fixed in the upper die 8, and the output end of the driving component 2 is inserted into one side of the sliding space;
one end of the sliding component 3 is connected with the output end of the driving component 2 and can slide in the sliding space, and the bottom of the sliding component 3 is provided with a cushion block 32;
the trimming and punching component 4 is hung on the upper die 8 through a sleeve type limit screw 7, is positioned at the bottom of the sliding component 3, and is provided with an insert 45 which can change the contact area with the bottom of the cushion block 32 at the top; so that the bottom of the trimming and punching component 4 is positioned in the cavity of the upper die 8 or extends out of the cavity of the upper die 8.
The utility model discloses a blind window and non-blind window state switching device, because the lower part that upper die assembly and upper die constitute has open sliding space, the sliding assembly can slide in the sliding space through the drive of drive assembly, from this through changing the area of contact between cushion and the insert (changing repair the die cavity that dashes the subassembly along the ascending height lift of vertical direction promptly), realized repairing dashing the die cavity that the subassembly bottom is located the upper die or stretches out the upper die, reach in the non-blind window state die stamping die, repair dashing the subassembly and stretch out the upper die cavity and carry out deburring and punching; in the blind window state punching die, the trimming punching component is kept in a cavity of the upper die, so trimming punching is not carried out in the punching process, the requirement that one die is used for producing two parts is met by changing the die structure on the basis of the original punching die machine tool, two sets of dies are not required to be manufactured, the die cost is saved, the manufacturing period is shortened, and the processing cost is reduced.
Specifically, referring to fig. 2, the upper die assembly 1 includes: a top guide sliding plate 11, a side limiting plate 12 and an end limiting block 13;
the top guide sliding plate 11, the side limiting plate 12 and the end limiting block 13 are all provided with a plurality of through holes, the top guide sliding plate, the side limiting plate 12 and the end limiting block 13 are fixed in the upper die 8 through bolts, and the lower portion of the top guide sliding plate and the upper die 8 form an open sliding space.
The top guide sliding plate can be a plurality of independent plate pieces or a plurality of plates arranged at certain intervals, and the side limiting plates can be two or four and arranged at certain intervals; the number of the end limiting blocks is two or four, and the end limiting blocks are also arranged according to a preset distance; the thickness and shape of the above components are selected according to the use condition.
Referring to fig. 3, the sliding assembly 3 includes a sliding block body 31, a cushion block 32 and a connecting plate 33;
the length of the slider body 31 is less than the length of the sliding space; the middle part of the slider body can be partially hollow, so that the weight of the part is reduced;
the cushion blocks 32 comprise a plurality of cushion blocks, are fixed at the bottom of the sliding block body 31 according to preset positions, and can change the contact area with the top of the trimming and punching component 4; wherein, the bottom end of the sliding block can be provided with a mounting position of the cushion block;
the connecting plate 33 is fixed to an end face of the slider body 31 and connected to an output end of the driving unit 2.
Referring to fig. 1, the driving assembly 2 includes a driving member 21, a floating joint 22 and a driving member mounting plate 23;
the driving piece 21 is fixed on the driving piece mounting plate 23, and the output end of the driving piece is connected with one side of the floating joint 22;
the other side of the floating joint 22 is connected with a connecting plate 33;
the driving member mounting plate 23 is close to the sliding space and fixed in the upper mold 8.
Specifically, the driving member 21 is a cylinder, and an output end of the cylinder is inserted into the sliding space and connected to the connecting plate 33 through the floating joint 22 to drive the slider body 31 to slide along the sliding space. Wherein the sum of the maximum moving distance of the cylinder and the maximum moving distance of the slider body is less than the total length of the sliding space.
Referring to fig. 4-6, the punch trimming assembly 4 includes: the insert mounting seat 41, the insert 45, the trimming insert 42 and the first nitrogen spring set 43;
the insert mounting seat 41 is hung on the upper die 8 through a sleeve type limit screw 7, and the bottom of the insert mounting seat is provided with a plurality of mounting grooves; the mounting groove is positioned at the edge of the insert mounting seat;
the inserts 45 are fixed on the top end surface of the insert mounting seat 41, the number of the inserts is the same as that of the cushion blocks 32, and the contact area can be changed;
the trimming insert 42 is far away from the mounting groove and is fixed at the bottom of the insert mounting seat 41; the shape of the die is the same as that of a window to be punched;
the number of the first nitrogen spring sets 43 is the same as that of the mounting grooves, and the first nitrogen spring sets can stretch into the mounting grooves.
Referring to fig. 6, each of the first set of nitrogen spring sets 43 includes a first nitrogen spring mount 431, a first nitrogen spring 432, and a first spring pad 433;
the first nitrogen spring mounting seat 431 is fixed in the mounting groove;
one end of the first nitrogen spring 432 is fixed at the bottom of the first nitrogen spring mounting seat 431;
the first spring pad 433 is fixed to the pressing member 9 of the die, and abuts against the other end of the first nitrogen spring 432.
Wherein the specification of the nitrogen spring is selected according to the use condition.
The utility model provides an embodiment blind window and non-blind window state switching device, still include the same second group nitrogen spring group 44 of quantity with first group nitrogen spring group 43, second group nitrogen spring group 44 includes second nitrogen spring mounting panel 441, second nitrogen spring 442 and second spring cushion 443;
the second gas spring mounting plate 441 is close to the sliding space and is fixed to the upper die 8;
one end of the second nitrogen spring 442 is mounted at the bottom of the second nitrogen spring mounting plate 441;
the second spring pad 443 is fixed to the top of the insert mounting seat 41 and abuts against the other end of the second gas spring 442.
Therefore, the second nitrogen spring fixed on the upper die is abutted against the second spring cushion block fixed on the insert mounting seat, so that the trimming and punching component and the sliding component keep a certain gap in a natural state, and the sliding component is ensured to slide between the sliding space and the trimming and punching component without barriers, wherein the gap is 2-3 mm.
And the sum of the spring forces generated by the first nitrogen spring group is larger than the sum of the spring forces generated by the second nitrogen spring group.
The effect of adopting this scheme is: through being fixed in and repairing the first nitrogen spring that dashes the subassembly and fixing the first spring cushion butt that presses the material part, when making the mould punch the die under the blind window state, the strength that holds up and repaiies the subassembly is greater than the strength of second group nitrogen spring and repaiies the dead weight sum that dashes the subassembly, guarantees to repair and dashes the die cavity that the subassembly bottom is located between last mould and the material part.
In another embodiment of the present invention, the positioning device further comprises a positioning portion, the positioning portion is installed between the upper die 8 and the insert mounting seat 41; the trimming and punching precision in the die punching process can be controlled.
Specifically, the positioning part comprises a guide sleeve 5 and a guide post 6 which are in sliding fit;
the guide sleeves 5 are fixed at the top of the insert mounting seat and are uniformly distributed at the top of the insert mounting seat;
the guide post 6 is fixed on the upper die and matched with the guide sleeve.
Referring to fig. 7 and 9, the working process of the non-blind window working state is as follows:
and S1, installing a switching device on an upper die of the stamping die (keeping the initial positions of the cushion block of the sliding assembly and the insert of the trimming assembly to be staggered), installing the upper die on an upper sliding block of the stamping machine, and opening the upper sliding block of the stamping machine at the top dead center position. An operator toggles an air source switch of the punching machine tool to enable the air cylinder to be in an ejection state;
s2, the sliding block component connected with the cylinder moves along with the cylinder, so that the position of the cushion block at the bottom of the sliding block component corresponds to the position of the insert block at the top of the trimming and punching component;
s3, placing the workpiece in the lower die before stamping, and positioning by the die profile, the positioning pin and the positioning plate; the upper die of the punching machine moves downwards along with the machine tool slide block.
S4, the machine tool slide block moves downwards, the pressing part fixes a front stamping workpiece, the upper die moves downwards continuously along with the machine tool slide block after the pressing part is attached to the lower die and reaches the position of a bottom dead center, when the first nitrogen spring contacts the first nitrogen spring cushion block arranged on the pressing part, the insert mounting seat drives the insert to move upwards under the action of the first nitrogen spring, the insert mounting seat contacts the cushion block of the sliding assembly and prevents the trimming and punching assembly from moving upwards, the cutting edge height of the trimming and punching insert protrudes out of the upper die profile h2 at the moment, the trimming and punching assembly is in a working state and moves together with the upper die, when the upper die reaches the bottom dead center, the trimming and punching of the blind window part of the workpiece are finished, the waste of the blind window part slides out of the die together with.
S5, moving the upper die upwards, and separating the stamping workpiece from the pressing piece device and enabling the stamping workpiece to be in a supporting barrier-free state;
s6, jacking the stamped workpiece by the lower die supporting device of the die, and taking out the workpiece by a worker or a mechanical arm;
thereby completing a non-blind window state duty cycle.
Referring to fig. 8 and 10, the operation process of switching from the non-blind window operation state to the blind window operation state is as follows:
the working process of switching from the non-blind window working state to the blind window working state specifically comprises the following steps:
t1, the switching device is installed on the upper die of the stamping die (the initial position of the cushion block of the sliding assembly and the insert of the trimming and punching assembly is the contact position in the non-blind window state), the upper die of the stamping die is installed on the sliding block of the stamping machine tool, and the sliding block of the machine tool is opened at the top dead center position. An operator toggles an air source switch of the punching machine tool to enable the air cylinder to be in a withdrawing state;
t2, the sliding block component connected with the cylinder moves along with the cylinder, so that the contact surface between the cushion block at the bottom of the sliding component and the insert at the top of the trimming and punching component is reduced due to the movement of the sliding component, and the final contact area is zero, namely, the lift of the trimming and punching component in the height direction is reduced relative to the non-blind window state;
t3, placing the workpiece before stamping into a lower die, and positioning by means of the die profile, the positioning pins and the positioning plates; the upper die of the punching machine moves downwards along with the machine tool slide block.
T4, a machine tool slide block descends, a pressing piece device fixes a front stamping workpiece, the upper die continues to descend along with the machine tool slide block after the front stamping workpiece is attached to a lower die and reaches a bottom dead center position, when a first nitrogen spring contacts a first nitrogen spring cushion block arranged on a pressing part, an insert mounting seat drives an insert to move upwards under the action of the first nitrogen spring, the contact area between the cushion block at the bottom of a sliding assembly and the insert at the top of a trimming and punching assembly is zero, and the sum of the spring forces of a first nitrogen spring group is larger than the sum of the spring forces of a second nitrogen spring group, so that the insert mounting seat continues to move upwards, the lift of the trimming and punching assembly in the height direction is reduced, the height of a cutting edge of the trimming and punching insert at the moment is smaller than the upper die cavity surface h1, the trimming and punching assembly is in.
T5, moving the upper die upwards, and separating the stamping workpiece from the pressing piece device and keeping the stamping workpiece in a supporting barrier-free state;
t6, ejecting the stamped workpiece by a lower die supporting device of the die, and then taking out the workpiece by a worker or a mechanical arm; thereby completing a blind window state duty cycle.
It is visible through above-mentioned working process, the utility model discloses a punching press lathe air supply control cylinder drives the slip subassembly and slides, changes the area of contact that cushion and insert (be the relative height who changes the relative mould cavity of punching the subassembly promptly for the change), has realized the change of blind window and non-blind window die state. Through the second nitrogen spring fixed on the upper die and the first spring cushion block fixed on the insert mounting seat, the repairing and punching component and the sliding component keep a certain gap in a natural state, and the sliding component is ensured to slide in a sliding space and between the repairing and punching components without obstacles. The first nitrogen spring fixed on the trimming and punching assembly is abutted against the first spring cushion block fixed on the material pressing part, so that when the die is stamped in a blind window state, the spring force of the lifting trimming and punching assembly is larger than the sum of the spring force of the second group of nitrogen springs and the self weight of the trimming and punching assembly, and the bottom of the trimming and punching assembly is ensured to be positioned in a cavity between the upper die and the pressing device. The positioning part is arranged between the upper die and the insert mounting seat and used for controlling trimming and punching precision in the stamping process.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The blind window and non-blind window state switching device is used for die stamping processing of a rear door in a vehicle in a blind window state and a non-blind window state; it is characterized by comprising:
the upper die assembly (1) is fixed in an upper die of the die punching machine tool, and forms a sliding space with an opening at the lower part with the upper die;
the driving assembly (2) is fixed in the upper die, and the output end of the driving assembly (2) is inserted into one side of the sliding space and can slide;
one end of the sliding component (3) is connected with the output end of the driving component (2) and can slide in the sliding space; the bottom of the sliding component (3) is provided with a cushion block (32);
the trimming and punching assembly (4) is hung on the upper die through a sleeve type limit screw (7) and is positioned at the bottom of the sliding assembly (3), and an insert (45) which can change the contact area with the bottom of the cushion block (32) is arranged at the top of the trimming and punching assembly (4); so as to realize that the bottom of the trimming and punching component (4) is positioned in a cavity of the punch pressing component or extends out of the cavity of the pressing component.
2. Blind and non-blind window state switching device according to claim 1, characterized in that the upper die assembly (1) comprises: a top guide sliding plate (11), a side limiting plate (12) and an end limiting block (13);
the top guide sliding plate (11), the side limiting plates (12) and the end limiting blocks (13) are all provided with a plurality of through holes, the top of the top guide sliding plate is fixed in the upper die through bolts, and the lower portion of the upper die is provided with an open sliding space.
3. Blind and non-blind window state switching device according to claim 2, characterized in that said sliding assembly (3) comprises a slider body (31) and a connecting plate (33);
the length of the sliding block body (31) is smaller than that of the sliding space;
the cushion blocks (32) comprise a plurality of cushion blocks, are fixed at the bottom of the sliding block body (31) according to preset positions, and can change the contact area with the top of the insert (45);
the connecting plate (33) is fixed on one end face of the sliding block body (31) and is connected with the output end of the driving assembly (2).
4. Blind and non-blind window state switching device according to claim 3, characterized in that the drive assembly (2) comprises a drive member (21), a floating joint (22) and a drive member mounting plate (23);
the driving piece (21) is fixed on the driving piece mounting plate (23), and the output end of the driving piece is connected with one side of the floating joint (22);
the other side of the floating joint (22) is connected with the connecting plate (33);
the driving piece mounting plate (23) is close to the sliding space and fixed in the upper die.
5. Blind and non-blind window state switching device according to claim 4, characterized in that the driving member (21) is a cylinder, the output end of the cylinder is inserted into the sliding space and connected with the connecting plate (33) through the floating joint (22) to drive the slider body (31) to slide along the sliding space.
6. Blind and non-blind window state switching device according to claim 4, characterized in that the blanking assembly (4) comprises: the punching device comprises an insert mounting seat (41), a punching repair insert (42) and a first nitrogen spring set (43);
the insert mounting seat (41) is hung on the upper die through the sleeve type limiting screw (7), and a plurality of mounting grooves are formed in the bottom of the insert mounting seat; the inserts (45) are fixed on the top end surface of the insert mounting seat (41), the number of the inserts is the same as that of the cushion blocks (32), and the contact area can be changed;
the punching trimming insert (42) is far away from the mounting groove and is fixed at the bottom of the insert mounting seat (41); the shape of the die is the same as that of a window to be punched;
the number of the first group of nitrogen spring groups (43) is the same as that of the mounting grooves, and the first group of nitrogen spring groups are fixed in the mounting grooves.
7. The blind and non-blind window state switching device according to claim 6, wherein each of the first set of nitrogen spring sets (43) comprises a first nitrogen spring mount (431), a first nitrogen spring (432) and a first spring pad (433);
the first nitrogen spring mounting seat (431) is fixed in the mounting groove;
one end of the first nitrogen spring (432) is fixed at the bottom of the first nitrogen spring mounting seat (431);
the first spring cushion block (433) is fixed on a material pressing component of the die punching machine tool and is abutted against the other end of the first nitrogen spring (432).
8. The blind and non-blind window state switching device according to claim 6, further comprising a second set of nitrogen spring sets (44) in the same number as the first set of nitrogen spring sets (43), the second set of nitrogen spring sets (44) comprising a second nitrogen spring mounting plate (441), a second nitrogen spring (442) and a second spring pad (443);
the second nitrogen spring mounting plate (441) is close to the sliding space and is fixed on the upper die;
one end of the second nitrogen spring (442) is mounted at the bottom of the second nitrogen spring mounting plate (441);
the second spring cushion block (443) is fixed at the top of the insert mounting seat (41) and is abutted against the other end of the second nitrogen spring (442);
wherein the sum of the spring forces of the first set of nitrogen spring sets (43) is greater than the sum of the spring forces of the second set of nitrogen spring sets (44).
9. Blind and non-blind window state switching device according to claim 8, further comprising a positioning portion mounted between the upper die and the insert mounting seat (41).
10. Blind and non-blind window state switching device according to claim 9, characterized in that the positioning part comprises a guide sleeve (5) and a guide post (6) in sliding fit;
the guide sleeve (5) is fixed at the top of the insert mounting seat (41) and is uniformly distributed at the top of the insert mounting seat (41);
the guide post (6) is fixed on the upper die and matched with the guide sleeve (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920363550.8U CN209902054U (en) | 2019-03-21 | 2019-03-21 | Blind window and non-blind window state switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920363550.8U CN209902054U (en) | 2019-03-21 | 2019-03-21 | Blind window and non-blind window state switching device |
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| Publication Number | Publication Date |
|---|---|
| CN209902054U true CN209902054U (en) | 2020-01-07 |
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| CN201920363550.8U Active CN209902054U (en) | 2019-03-21 | 2019-03-21 | Blind window and non-blind window state switching device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109894524A (en) * | 2019-03-21 | 2019-06-18 | 厦门金龙汽车车身有限公司 | Blank window and non-blind window state switching device |
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2019
- 2019-03-21 CN CN201920363550.8U patent/CN209902054U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109894524A (en) * | 2019-03-21 | 2019-06-18 | 厦门金龙汽车车身有限公司 | Blank window and non-blind window state switching device |
| CN109894524B (en) * | 2019-03-21 | 2024-03-15 | 厦门金龙汽车车身有限公司 | Blind window and non-blind window state switching device |
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