Hole flanging turns over the one-shot forming apparatus of sharp edge with straight flange in a kind of part
Technical field
The present invention relates to the one-shot forming dress that hole flanging in decompressor, more particularly to a kind of part and straight flange turn over sharp edge
Put.
Background technology
At present, because the cost of stamping products is low, increasingly popularized with the application of punch press both at home and abroad, punching precision is carried
Height, has many products to pass through the punching press of punch press to produce, and the workpiece of many of which complicated shape is produced also by punching press, raw
Produce producer to improve the precision of product, reduce the production cost of product, mould is sufficiently improved.
The one-shot forming apparatus that hole flanging turns over sharp edge with straight flange in a kind of part that the present invention is referred to passes through common mould
It can not realize, produce at this stage at least through post forming (in first time punching press hole flanging, second of straight flange turn over sharp edge)
Realize that hole flanging and straight flange in part turn over the one-shot forming of sharp edge, due to the multiple bearing of product, cause the change of positioning datum,
The precision that there is product is not high, while increasing with procedure, causes production cost to greatly improve.The present invention by using
The aggregate motion of mould is overpaied, makes the workpiece disposal molding of complexity, it is ensured that quality, efficiency is improved.
The content of the invention
Weak point present in regarding to the issue above, the present invention provides hole flanging in a kind of part and turns over sharp edge with straight flange
One-shot forming apparatus.
To achieve the above object, the present invention provides the one-shot forming apparatus that hole flanging in a kind of part turns over sharp edge with straight flange,
Including:
Position-limited rack is installed in base, the left side of the base, and revolving die support, the revolving die are installed in the middle part of the base
Revolving die is installed by rotating shaft on support;
The left side processing contact surface of revolving die first of the revolving die, the left upper of the revolving die be bolted revolving die into
Type part, the middle part of the revolving die internal model pushing block, the right side processing forced section of the revolving die are installed by bolt;
Turn over sharp edge shaping mould, described to turn over sharp edge shaping mould corresponding with the left side of revolving die installed in the left side of upper mould;
Pressing plate, the pressing plate is arranged on the centre of the upper mould by gas spring;
Straight drive block, the straight drive block is arranged on corresponding position peace below the right side of the upper mould, the straight drive block
Flat drive block is filled, the straight drive block bottom processes straight drive block working face, and the right side of the flat drive block processes flat drive block
Working face, the left side processing external mold of the flat drive block, bottom connection function portion and the revolving die of the flat drive block (16)
(4) right side forced section matching;
Workpiece positioning table is arranged on the centre of the upper mould and the base, is connected by support with the base, described
Workpiece is placed on workpiece positioning table;
Internal model, the internal model is arranged on below the workpiece positioning table.
Further improve as of the invention, the contact surface of revolving die first is shaped as arc-shaped.
Further improved as of the invention, the right side processing pushing block contact site of the internal model pushing block, the pushing block contact site
Profile be arc-shaped.
Further improved as of the invention, the right lower quadrant of the revolving die installs revolving die back-moving spring.
As further improvement of the invention, flat driving module resetting mechanism, the flat drive are installed below the flat drive block
Motion block resetting-mechanism includes the oat tail groove structure for being oriented to and the back-moving spring for reset.
Further improved as of the invention, the external mold includes external mold head and external mold forming part, between rounding off.
Further improved as of the invention, the external mold head is frustum, and the end diameter of the frustum is less than described
The diameter of the workpiece initial apertures of workpiece, the external mold forming part is cylindric, the columned diameter and Workpiece shaping metapore
Diameter it is consistent.
Further improved as of the invention, internal model resetting-mechanism, the internal model resetting-mechanism are installed below the internal model
Including the oat tail groove structure for guiding and the back-moving spring for reset.
Further improved as of the invention, the right side processing internal model forming part and internal model forming hole of the internal model.
Further improved as of the invention, the diameter of the internal model forming hole is more than the diameter of the external mold forming part.
Beneficial effects of the present invention are:
1. by using the aggregate motion for overpaying mould, making the workpiece disposal molding of complexity, it is ensured that quality, effect is improved
Rate.
2. using the abnormity design of revolving die, when making the straight flat drive block of drive block promotion, the lower reaction portion of straight drive block is pushed away
The right side forced section of dynamic revolving die, makes revolving die rotate around the axis an angle, the forming surface of revolving die first and workpiece on the left of revolving die
The left side is contacted, and until revolving die molding part and is turned over sharp edge shaping mould collective effect and is completed workpiece and turn over acute angle crack approach, is led to simultaneously
The motion of internal model pushing block is crossed, makes internal model in place.
3. the designed arc-shaped appearance of the forming surface of revolving die first, makes contact submissive, the power without mutation when being transitioned into revolving die molding part, make
Transition after acute angle edge forming is naturally, forming surface is smooth clean and tidy.
4. the conical design of external mold and the cooperation with internal model, make the interior hole flanging of workpiece simple, rationally, while conveniently stripped.
Brief description of the drawings
Fig. 1 is that the front view of the one-shot forming apparatus that hole flanging turns over sharp edge with straight flange in a kind of part of the invention is (unformed
Before);
Fig. 2 is the front view (shaping of the one-shot forming apparatus that hole flanging turns over sharp edge with straight flange in a kind of part of the invention
Afterwards);
Fig. 3 is the enlarged drawing of location A in Fig. 1;
Fig. 4 is the enlarged drawing of B location in Fig. 2;
Fig. 5 is the sectional view before work pieces process;
Fig. 6 is the sectional view after work pieces process.
In figure:1st, base;2nd, position-limited rack;3rd, revolving die support;4th, revolving die;5th, the contact surface of revolving die first;6th, revolving die molding part;
7th, internal model pushing block;8th, pushing block contact site;9th, workpiece positioning table;10th, workpiece;11st, sharp edge shaping mould is turned over;12nd, upper mould;13rd, gas
Body spring;14th, pressing plate;15th, straight drive block;16th, flat drive block;17th, driving module resetting mechanism is put down;18th, internal model;19th, internal model is multiple
Position mechanism;20th, revolving die back-moving spring;21st, straight drive block working face;22nd, flat drive block working face;23rd, external mold head;24th, it is outer
Mold forming portion;25th, internal model forming part;26th, internal model forming hole;27th, workpiece initial apertures;28th, Workpiece shaping metapore.
Embodiment
As shown in Figure 1-2, hole flanging turns over the one-shot forming of sharp edge with straight flange in a kind of part described in the embodiment of the present invention
Device, including:Position-limited rack 2 is installed in base 1, the left side of the base 1, realizes the control to revolving die rotational angle.The centre of base 1
Install on revolving die support 3, revolving die support 3 by rotating shaft installation revolving die 4 at position;The left side processing contact surface of revolving die first of revolving die 4
5, the first contact surface of revolving die 5 is shaped as arc-shaped, revolving die is contacted submissive with workpiece.The left upper of revolving die 4 passes through bolt
Revolving die molding part 6 is connected, by the flexible connection of bolt, conveniently repairs a die and changes.Installed by bolt the middle part of revolving die 4
Internal model pushing block 7, the right side processing pushing block contact site 8 of internal model pushing block 7, the profile of the pushing block contact site 8 is arc-shaped.Work as revolving die
During rotation, the left side of internal model is pushed away by the contact site of arc-shaped.The right side processing forced section of revolving die 4, the right lower quadrant of revolving die 4 is installed
Revolving die back-moving spring 20, the reset for revolving die.Sharp edge shaping mould 11 is turned over installed in the left side of upper mould 12 and the left side of revolving die 4
Correspondence;Pressing plate 14 is arranged on the centre of upper mould 12 by gas spring 13, realizes and the flexibility of workpiece is positioned.Straight drive block 15 is pacified
Flat drive block 16 is installed in corresponding position below the right side of upper mould 12, straight drive block 15, and the straight bottom of drive block 15 processing is straight to drive
Motion block working face 21, the right side of flat drive block processes flat drive block working face 22, when straight drive block down when, pass through straight drive block
Working face 21 extrudes flat drive block working face 22, flat drive block is turned left horizontal movement.The bottom connection function of flat drive block 16
Portion is matched with the right side forced section of revolving die 4, when flat drive block is turned left, by the forced section of the push-jump mould of service portion, realizes revolving die
Rotation.Flat driving module resetting mechanism 17 is installed, the flat driving module resetting mechanism 17 includes being used for below flat drive block 16
The oat tail groove structure of guiding and the back-moving spring for reset.Workpiece positioning table 9 is arranged on the centre of upper mould 12 and base 1, leads to
Cross support to be connected and (do not represent in support figure) with base 1, workpiece 10 is placed on workpiece positioning table 9;Internal model 18 is fixed installed in workpiece
Below the platform 9 of position, internal model resetting-mechanism 19 is installed below internal model 18, internal model resetting-mechanism 19 includes the dovetail groove for being oriented to
Structure and the back-moving spring for reset.
As shown in Figure 3-4, the left side processing external mold of the flat drive block 16, external mold includes external mold head 23 and outer mold forming
Portion 24, between rounding off.External mold head 23 is frustum, and the end diameter of frustum is less than the workpiece initial apertures 27 of workpiece 10
Diameter, external mold forming part 24 is cylindric, and columned diameter is consistent with the diameter of Workpiece shaping metapore 28.The right side of internal model 18
Process internal model forming part 25 and internal model forming hole 26.The diameter of internal model forming hole 26 is more than the diameter of external mold forming part 24.
As shown in figure 5, being the sectional view before work pieces process.
As shown in fig. 6, being the sectional view after work pieces process.
By using the aggregate motion for overpaying mould, make the workpiece disposal molding of complexity, it is ensured that quality, improve efficiency.
Using the abnormity design of revolving die, when making the straight flat drive block of drive block promotion, the lower reaction portion of straight drive block promotes the right side of revolving die
Side forced section, makes revolving die rotate around the axis an angle, and the forming surface of revolving die first on the left of revolving die is contacted with the left side of workpiece, directly
To revolving die molding part and turn over sharp edge shaping mould collective effect and complete workpiece and turn over acute angle crack approach, while pass through internal model pushing block
Motion, makes internal model in place.The designed arc-shaped appearance of the forming surface of revolving die first, makes contact submissive, without mutation when being transitioned into revolving die molding part
Power, make transition after acute angle edge forming naturally, forming surface is smooth clean and tidy.The conical design of external mold and the cooperation with internal model, make work
The interior hole flanging of part is simple, rationally, while conveniently stripped.
When specifically used, for convenience of the present invention is understood, it is described stage by stage with reference to accompanying drawing;
1. charging stage (referring to Fig. 1), upper mould is located at a high position, straight drive block is separated with flat drive block, and flat drive block is in bullet
It is located at right side in the presence of spring, revolving die is rotated counterclockwise in the presence of revolving die back-moving spring, until the lower left quarter of revolving die is encountered
Position-limited rack;Internal model is in the left side in the presence of internal model back-moving spring;Turn over sharp edge shaping mould and pressing plate is located above, now will
Workpiece is placed into workpiece positioning table.
2. the punching press first stage (referring to Fig. 1-2), that is, turning over acute angle edge forming and internal model in place, down, pressing plate is first for upper mould
Encounter workpiece, workpiece is pushed down, now turn over sharp edge shaping mould and down encounter workpiece, by workpiece along turning over sharp edge shaping mould
Bending occurs for inner side, while straight drive block encounters flat drive block, flat drive block is turned left, by the following push-jump mould of service portion by
Power portion, realizes turning clockwise for revolving die, and the contact surface of left side revolving die first of revolving die encounters workpiece, by the left side of workpiece up
Turn over, reach lowest order until turning over sharp edge shaping mould, now revolving die molding part is contacted with workpiece, is finally completed acute angle edge forming.
While acute angle edge forming, the internal model pushing block edge on revolving die is rotated clockwise, a left side for pushing block contact site and internal model on the right side of it
Side contacts, internal model is turned right along horizontal direction and moved, until in place.
3. punching press second stage (referring to Fig. 1-4), i.e. hole flanging in punch forming, upper mould continue down, gas spring compression,
Pressing plate tightly pushes down workpiece.Straight drive block continues to extrude flat drive block, due to the now service portion of flat drive block and revolving die
Forced section is flat contact, although it has relative motion, and revolving die is not rotated, and the external mold and workpiece in the left side of flat drive block
Initial apertures contact, by the guide effect on external mold head, the head of external mold and forming part produce extruding to workpiece, simultaneously because
The supporting role of internal model forming part, forms Workpiece shaping metapore (see Fig. 6), now the head of external mold and forming part are all in internal model
At forming hole, shaping terminates.
4. blanking and reseting stage (referring to Fig. 1), punching press terminates, and up, drive turns over sharp edge shaping mould up to upper mould, presses
Up, gas spring is resetted block, and straight drive block is up separated until with flat drive block, and flat drive block is in flat driving module resetting mechanism
In the presence of level turn right motion, external mold is disengaged with workpiece, and revolving die is rotated counterclockwise in the presence of revolving die back-moving spring, until
The lower left quarter of revolving die encounters position-limited rack;Internal model pushing block and internal model are separated, and internal model level in the presence of internal model back-moving spring is turned left
Motion, forming part and the workpiece of internal model are disengaged, and now just the workpiece processed can be removed from workpiece positioning table, waited next
Secondary punching press.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.