CN222343977U - An adjustable universal pressing die - Google Patents
An adjustable universal pressing die Download PDFInfo
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- CN222343977U CN222343977U CN202323615114.0U CN202323615114U CN222343977U CN 222343977 U CN222343977 U CN 222343977U CN 202323615114 U CN202323615114 U CN 202323615114U CN 222343977 U CN222343977 U CN 222343977U
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Abstract
The utility model belongs to the field of vehicle sheet metal part forming and manufacturing, and particularly relates to an adjustable universal profiling die which comprises an upper die plate, a lower die plate, a male die, a female die, a lower die fixing plate, an adjusting pad, a jacking rod, a jacking plate, a baffle plate, a guide sleeve and a guide pillar. The utility model can realize the production of various parts by one set of die, has universality, can effectively improve the production efficiency of products and reduces the production cost.
Description
Technical Field
The utility model belongs to the field of vehicle sheet metal part forming and manufacturing, and particularly relates to an adjustable universal profiling die which is suitable for vehicle sheet metal part forming and processing.
Background
In the prior art, in the design of a sample car, a plurality of U-shaped profiling pieces appear, and although a bending machine can be used for forming, the defect that part of the parts have requirements on the coaxiality of holes, the coaxiality of the holes cannot be guaranteed when the bending machine is used for bending and forming, part of the parts can interfere when the bending machine is used for bending and forming, the welding is needed to be carried out, the strength and the attractiveness of the parts are affected, and part of the parts can be extruded by holes on the opposite sides when the bending machine is used for bending and forming, so that the holes are deformed.
The size and the shape of a part product 1 of a vehicle type are shown in figures 1-3, the material is steel plate 20CrMnTi, the thickness of the material is 3mm, according to the drawing requirement, if the part product is produced by using a laser blanking and bending machine forming mode, the coaxiality of holes and the precision of the product shape cannot be ensured, if the hole is machined after forming, the precision of the holes cannot be ensured by machining due to the fact that the thickness of the plate is only 3mm, the base number is large, and the labor cost of bending of the bending machine and the machining cost are too large.
And if another part is a U-shaped profiling part, namely a product 2, the size and the shape of the product are shown in fig. 4, the material is a steel plate BS700MC, the thickness of the material is 8mm, and according to the requirement of a drawing, as a bending edge of the product is provided with a gap, the size of a short edge to the bottom is only 15mm, and when the product is bent and formed by using a bending machine, the gap is not stressed, so that the gap is torn and cannot be completely formed. A square plate can be cut according to the previous thought, and the notch is cut by flame after bending and forming, so that the manual operation cannot ensure the forming dimensional accuracy and roughness, and the product quality and the aesthetic degree are affected.
Disclosure of utility model
In order to solve the problems in the prior art, the utility model provides an adjustable universal profiling die which comprises an upper die plate (1), a lower die plate (3), a male die (2), a female die (6), a lower die fixing plate (4), an adjusting pad (5), a jacking rod (7), a jacking plate (8), a baffle plate (9), a guide sleeve (18) and a guide pillar (19), wherein a groove is arranged in the middle position of the lower surface of the upper die plate (1) and is used for installing the male die (2), the upper die plate (1) and the male die (2) are fixed through a screw III (17) and a pin (16), a female die (6) is arranged between the male die (2) and the upper surface of the lower die plate (3), grooves are arranged at symmetrical positions on two sides of the upper surface of the lower die plate (3) and are used for installing the lower die fixing plate (4), the lower die plate (3) and the lower die fixing plate (4) are fixed through bolts, a row of through holes are formed in the middle position of the lower die plate (3) and are combined with a hydraulic press for jacking the jacking rod (7), the adjusting pad (5) is arranged between the lower die fixing plate (4) and the female die (6), the upper die (4) and the upper die (3) is fixed through the screw III and the screw (11), the material ejection rod (7) is placed on the corresponding position of the oil press when the die is used, and the guide sleeve (18) and the guide post (19) are sleeved between the upper die plate (1) and the lower die plate (3).
Further, the male die (2) is T-shaped, the length and the height of the male die (2) can be adjusted according to the actual part size, a row of threaded holes are formed in the middle of the upper half part of the male die (2) and matched with the upper die plate (1), pin holes are formed in the male die (2) and used for installing the upper die plate (1), the hole sites on the male die (2) are of a fixed structural design, the length of the hole sites is not changed along with the change of the male die (2), the lower half part of the male die (2) is a forming part and used for forming a part, and the hole sites are changed according to the size and the shape of the part.
Furthermore, the length of the female die (6) takes 500mm as one block, three blocks are left and right, the use quantity of the female dies is determined according to the size of the part, and the adjusting pad (5) is used for adjusting the interval of the female dies (6).
Further, the bolt (13) passes through the lower die fixing plate (4), the adjusting pad (5) and the female die (6) to be fixed, and a second gasket (14) is arranged between the bolt (13) and the lower die fixing plate (4).
Furthermore, a liftout plate (8) is arranged between the liftout rod (7) and the male die (2), the liftout plate (8) is matched with the liftout rod (7) to punch the pressed part out of the die, and a long hole is arranged in the middle of the liftout plate (8) to adjust the position so as to center the part.
Further, a row of through holes are arranged on the upper die plate (1) and used for passing through bolts to install the male die (2).
Furthermore, the outer sides of the upper template (1) and the lower template (3) are provided with lifting screws (15) which are respectively screwed with the upper template (1) and the lower template (3).
Further, the guide sleeve (18) is fixed with the upper template (1) in an interference fit mode, and the guide post (19) is fixed with the lower template (3) in an interference fit mode.
The utility model has the beneficial effects that in order to ensure the quality and the production efficiency of products, the cost can be saved as much as possible, and one set of die can produce various parts. The set of dies can be used in the subsequent production process, so that the production efficiency of the product can be effectively improved and the production cost can be reduced due to the universality. Meanwhile, the design of the man-machine ring is emphasized, and the die is convenient, safe and quick to use, and reduces the labor intensity of operators.
Drawings
FIG. 1 is a front view of product 1;
FIG. 2 is a top view of product 1;
Fig. 3 is a left side view of product 1;
FIG. 4 is a schematic diagram of product 2;
FIG. 5 is a block diagram of the present utility model wherein 1, upper die plate, 2, punch, 3, lower die plate, 4, lower die plate, 5, adjustment pad, 6, die, 7, ejector pin, 8, ejector plate, 9, striker plate, 10, screw one, 11, screw two, 12, washer one, 13, bolt 14, washer two, 15, jack screw, 16, pin, 17, screw three, 18, guide sleeve, 19, guide post.
Fig. 6 is a two-view of the U-shaped profiling, wherein (a) is a right-side view and (b) is a front view.
Detailed Description
For a better understanding of the objects, technical solutions and functions of the present utility model, the present utility model will be described in further detail with reference to the accompanying drawings, but the present utility model may be embodied in many different forms as defined and covered by the claims. The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.
1. Die overall concept
(1) The size of the die is determined, and in order to ensure that the die can finish the die-forming production of the U-shaped part of the vehicle model at the same time, the die needs to have enough length, enough wide-range adjustment width and enough depth.
(2) In order to meet the requirement of profiling parts of different materials and different thicknesses, the die has enough strength.
(3) The die has certain universality, so that the utilization rate of the die is maximized.
(4) The adjustment operation of the die is simple and clear, and the operation difficulty of the operation is reduced.
(5) The design of the man-machine ring is emphasized, and the die is convenient, safe and quick to use, and reduces the labor intensity of operators.
2. Mould scheme
2.1 Device determination
The selection of equipment directly influences a series of problems such as the effect of finished products of the die, safety, product quality, the service life of the die, production efficiency, manufacturing cost and the like.
Important parameters to be considered for the press are the allowable load of the press, the pressure required to complete the process, the strokes and the number of strokes, the maximum die height, the table top size of the press being larger than the planar size of the die, and the margin for fixing the die and the press accuracy.
In order to adapt to the hardness, thickness and size of various materials, the universality of the profiling die is maximized, meanwhile, the die set is used on a hydraulic press for safety, and the hydraulic press has a pressure maintaining function and cannot be overloaded due to the fact that the hydraulic press is slow in working speed, so that a YH27-500T hydraulic press is selected.
2.2 Die Structure
As shown in fig. 5, the key structure of the adjustable universal pressing die is a female die and a male die. The male die is used as a main stress structure, is also a key structure of the forming quality of the parts, needs to be integrally formed to prolong the service life, and makes the adjustment of the size of the male die extremely difficult, so that the male die is suitable for different parts in a replacement mode.
The main structure of the die comprises an upper die plate, a lower die plate, a male die, a female die, a lower die fixing plate, an adjusting pad, a guide post, a guide sleeve and the like. The size of the die was first determined, combined with the table size of the press and the size of the parts in the model vehicle and maximizing the versatility of the die, and finally the die size was 1500mm x 800mm, with a clamping height of 370mm.
2.3 Major component design
2.3.1 Design of upper and lower templates
The upper and lower templates are used as the rough outline of the whole die, the dimension of 1500mm multiplied by 800mm is determined preferentially, and since the whole die is bigger, the lifting screws are required to be arranged at the two sides of the upper and lower templates. In order to facilitate the installation of the die and improve the accuracy of the die, a guide post and a guide sleeve are arranged to correct the die. The middle position of the upper template is provided with a groove for installing the male die, a row of through holes are arranged for passing through bolts to install the male die, and two pin holes are also needed for installing positioning pins, so that the male die can be positioned and installed conveniently. Grooves are formed in the positions of the two sides of the lower die plate, used for installing the lower die fixing plate, a row of through holes are formed in the middle position of the lower die plate in combination with a hydraulic press, used for jacking materials of a jacking rod, and in order to improve the precision of the space between the female dies, the upper surface of the lower die plate is required to be subjected to finish machining.
2.3.2 Male die designs
The male die is designed into a T shape, and the length and the height of the male die can be adjusted according to the actual size of the part. The middle of the upper half part is provided with a row of threaded holes matched with the upper template and two pin holes for being arranged on the upper template, the hole site of the structure is of a fixed structural design and does not change along with the change of the male die except the length, and the lower half part is a forming part for forming the part and changes according to the size and shape of the part.
2.3.3 Lower die fixing plate, female die and adjusting pad designs
The length of the female die is 500mm, and the number of the female dies can be determined according to the size of the part. The adjusting pads are used as key parts for adjustment, the left side and the right side are subjected to finish machining, so that the adjusting pads achieve good flatness and finish, and the smaller the number of the used adjusting pads is, the better the smaller the number of the used adjusting pads is, and the influence of tolerance accumulation on the space between the female dies is reduced to the greatest extent. The lower die fixing plate is used for fixing the female dies, and the spacing between the female dies can be adjusted by combining the adjusting pad. The lower die fixing plate is fixed on the lower die plate by bolts. When the space between the female dies is adjusted by using the adjusting pad, the lower die fixing plate, the adjusting pad and the female dies are fixed by using the long bolts.
2.3.4 Dam design
The lower die fixing plate is a part of the lower die on the outer side and is of a fixing structure, so that the baffle plate can be fixed on the lower die fixing plate by using bolts, the concave die is 500mm long in size, the convex die and the concave die are generally longer than the part in size during design, the part is centered manually in the length direction, the baffle plate is required to be arranged in the width direction for positioning the part, and long holes are required to be arranged in the middle of the top plate to adjust positions so as to center the part due to different sizes of the part.
2.3.5 Roof design
The ejector plate is a long plate with the thickness of 30mm in general, and is mainly used for being matched with an ejector rod to eject the pressed part out of the die, and can be used for positioning if special requirements exist. As with product 1, there is a requirement for hole coaxiality, so the best choice is to use ejector plate positioning.
2.3.6 Standard selection
The guide post, the guide sleeve, the bolt, the gasket, the pin, the jack screw and the like are standard components according to the international standard manual and the standard manual of the cold stamping die.
2.3.7 Method of assembling parts
The upper die plate 1 and the male die 2 are fixed in a mode of combining a screw III 17 and a pin 16, the lower die plate 3 and the lower die fixing plate 4 are fixed by bolts, an adjusting pad 5 is placed between the lower die fixing plate 4 and the female die 6 and is fixed by bolts 13 and a gasket II 14, the striker plate 9 is fixed on the lower die fixing plate 4 by a screw II 11 and a gasket I12, the guide sleeve 18 and the upper die plate 1 are fixed in an interference fit mode, the guide post 19 and the lower die plate 3 are fixed in an interference fit mode, the lifting screws 15 are screwed with the upper die plate 1 and the lower die plate 3 respectively, and the ejector rod 7 is required to be placed at a corresponding position of an oil press when the die is used.
2.4 Selection of Main component materials
2.4.1 Selection of materials for the male and female dies
In order to maximize the universality of the die set, considering that the materials, thickness and hardness of parts manufactured by using the die set are possible to a certain extent, the materials of the male die and the female die are tool steel T10A with good processability and low price, and the heat treatment hardness is 58-62 HRC.
2.4.2 Ejector pins, ejector plate and lower die plate Material
The ejector rod, the ejector plate and the lower die fixing plate are all parts which are frequently stressed, so that 45 # steel with high strength, good plasticity and toughness is selected, the cost is low, and the heat treatment hardness is 40-45 HRC.
2.4.3 The materials of other parts of the die are carbon structural steel Q235, and the production cost is low.
2.5 Closing height of die
The closing height of the die is the distance between the upper die holder and the lower die holder when the die is at the lowest working position. It should also be compatible with the die height of the press.
The die height of the press is the distance between the ground of the slide block and the upper plane of the working table plate when the slide block is at the bottom dead center position. The connecting rod in the slide block of the general press has a certain adjustment amount, and is the maximum die-filling height of the press when the connecting rod of the press is adjusted to be the shortest, and is the minimum die-filling height of the press when the connecting rod of the press is adjusted to be the longest.
The die height of the press must meet the die closure height requirements. The relation is that
H max-5≥H≥Hmin +10, where H max、Hmin is the maximum and minimum die height of the press and H is the die closing height.
If the closing height of the mould is too small, a backing plate is added to the table of the press during use. The die closure height must be less than the die loading height of the selected press.
The closing height of the set of compound die = upper die plate + male die-20 + part thickness + ejector plate + lower die plate = 370mm.
2.6 Mounting of the die
The working table of the press machine is provided with an upper platform and a lower platform, and when the die is installed, the upper die of the die is installed on the upper platform of the press machine, and the lower die of the die is installed on the lower platform of the press machine. The lower platform is usually provided with a bolt through hole and an installation empty slot, and is fixedly connected through pressing plates and bolts. The upper platform is determined according to the structure of a workbench of the press.
(1) Die shank connection
The center of the upper table top is provided with a round hole which locks the die shank for connection, and a pressing plate and a bolt are usually used for pressing and fixing connection at the same time.
(2) Pressing plate and bolt connection
The upper platform is provided with a bolt through hole and an installation empty slot, and is in compression fixed connection with the bolt through a pressing plate.
(3) Dovetail groove connection
The upper platform is provided with a T-shaped groove which is connected by matching with a dovetail groove.
The compound die equipment adopts a YH27-500T hydraulic press, and the upper platform and the lower platform are provided with bolt through holes and mounting empty slots and are fixedly connected through pressing plates and bolts.
2.7 Working procedure of die
When the working stroke starts, the upper die descends, the upper die stops when the parts completely enter the space between the female dies, the upper die ascends, and finally the parts are ejected by using the ejection rod.
2.8 Versatility of die
The set of dies can produce U-shaped profiled parts, as shown in figure 6, and the produced parts meet the following conditions of H.ltoreq. 170,30.ltoreq.W.ltoreq.200, L.ltoreq.1500 and expansion width.ltoreq.480.
The utility model can ensure the production efficiency, improve the product quality and save the cost, and has the following main characteristics:
1. The space between the female dies can be adjusted through the adjusting pad, so that the operation is convenient and easy.
2. The male die can be replaced and used.
3. Can manufacture various U-shaped profiling parts, and saves cost.
4. Has certain universality and provides convenience for subsequent production.
In the concrete implementation, the material of the product 1 is steel plate 20CrMnTi, the thickness of the material is 3mm, and if the coaxiality of holes and the precision of the shape of the product are required to be ensured according to the drawing requirements, the cost is saved, and the best mode is to use a profiling die for production. The material of product 2 is steel sheet BS700MC, and the material is thick 8mm, according to the drawing requirement, because its edge of bending exists the opening, and minor face is only 15mm to the bottom size, receives the power when using the bender to bend the shaping opening department, can lead to the opening department to tear and can't complete shaping. A square plate can be cut according to the previous thought, the notch is cut by flame after bending and forming, so that the manual operation cannot ensure the forming dimensional accuracy and roughness, and the quality and the aesthetic degree of a product are affected, and the best mode of the product 2 is still to use a profiling die for production. In addition, the automobile model also has other U-shaped parts to be produced, so that the design requirement of the adjustable universal press mold is completely met, and various parts are produced through one set of press mold, so that the purposes of saving production cost and improving production efficiency are achieved.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (8)
1. An adjustable universal profiling die is characterized by comprising an upper die plate (1), a lower die plate (3), a male die (2), a female die (6), a lower die fixing plate (4), an adjusting pad (5), a jacking rod (7), a jacking plate (8), a striker plate (9), a guide sleeve (18) and a guide pillar (19), wherein a groove is arranged at the middle position of the lower surface of the upper die plate (1) and is used for installing the male die (2), the upper die plate (1) and the male die (2) are fixed through a screw III (17) and a pin (16), a female die (6) is arranged between the upper surfaces of the male die (2) and the lower die plate (3), grooves are arranged at symmetrical positions on two sides of the upper surface of the lower die plate (3) and are used for installing the lower die fixing plate (4), the lower die plate (3) and the lower die fixing plate (4) are fixed through bolts, a row of through holes are formed in the middle position of the lower die plate (3) and are used for jacking the jacking rod (7) of a hydraulic press, the adjusting pad (5) is placed between the lower die fixing plate (4) and the female die (6), a screw II (11) and a punch (12) are used for fixing the striker plate (7) on the middle die plate (4), the material ejection rod (7) is placed on the corresponding position of the oil press when the die is used, and the guide sleeve (18) and the guide post (19) are sleeved between the upper die plate (1) and the lower die plate (3).
2. The adjustable universal profiling die according to claim 1, wherein the male die (2) is T-shaped, the length and the height of the male die (2) can be adjusted according to the actual part size, a row of threaded holes are formed in the middle of the upper half part of the male die (2) and matched with the upper die plate (1), pin holes are formed in the male die (2) and used for installing the upper die plate (1), the hole sites on the male die (2) are of fixed structural design, the hole sites are not changed with the change of the male die (2) except for the length, the lower half part of the male die (2) is a forming part for part forming, and the hole sites are changed according to the size and the shape of a part.
3. The adjustable universal profiling die according to claim 1, wherein the length of the die (6) is 500mm, three dies are arranged on the left and right sides, the number of the dies is determined according to the size of the part, and the adjusting pad (5) is used for adjusting the interval of the dies (6).
4. An adjustable universal profiling mould according to claim 1, characterized in that the bolt (13) is fixed through the lower mould fixing plate (4), the adjusting pad (5) and the female mould (6), and a second gasket (14) is arranged between the bolt (13) and the lower mould fixing plate (4).
5. An adjustable universal profiling mould as claimed in claim 1, characterized in that a stripper plate (8) is arranged between the stripper bar (7) and the punch (2), the stripper plate (8) being arranged to cooperate with the stripper bar (7) to eject the profiled part out of the mould, a slot being arranged in the middle of the stripper plate (8) for adjusting the position for centering the part.
6. An adjustable universal profiling die according to claim 1, characterized in that the upper die plate (1) is provided with a row of through holes for passing bolts for mounting the male die (2).
7. The adjustable universal profiling die according to claim 1, wherein the outer sides of the upper die plate (1) and the lower die plate (3) are provided with lifting screws (15) which are respectively screwed with the upper die plate (1) and the lower die plate (3).
8. The adjustable universal profiling die according to claim 1, wherein the guide sleeve (18) and the upper die plate (1) are fixed in an interference fit manner, and the guide post (19) and the lower die plate (3) are fixed in an interference fit manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323615114.0U CN222343977U (en) | 2023-12-28 | 2023-12-28 | An adjustable universal pressing die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323615114.0U CN222343977U (en) | 2023-12-28 | 2023-12-28 | An adjustable universal pressing die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222343977U true CN222343977U (en) | 2025-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323615114.0U Active CN222343977U (en) | 2023-12-28 | 2023-12-28 | An adjustable universal pressing die |
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| Country | Link |
|---|---|
| CN (1) | CN222343977U (en) |
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2023
- 2023-12-28 CN CN202323615114.0U patent/CN222343977U/en active Active
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