Upper and lower flanging double-die for part
By designing a double mold for upper and lower flange of parts, the nitrogen spring and limit block are used to achieve the simultaneous flange of parts, which solves the problems of low efficiency and low accuracy of existing molds, and improves production efficiency and stability of parts.
Patent Information
- Application Number
- CN202420789275.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-16
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-04-16
AI Technical Summary
Existing molds can only flip one side of the part at a time, which is inefficient in production, and the accuracy and stability of the part are easily affected after folding in different directions.
A dual mold for upper and lower flange of parts is designed, and a nitrogen spring support plate is installed with the lower mold seat and the upper mold seat respectively. The upper and lower flange of parts is achieved through the limit block and the insert, reducing mold costs and improving production efficiency.
The parts are flanked at the same time, saving mold costs, improving production efficiency and parts accuracy and stability.
Smart Images
Figure CN222133110U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of flanging moulds, in particular to a double mould for upper and lower flanging of parts. Background Art
[0002] Flanging refers to a forming method that uses the mold to form a straight wall or flange with a certain angle along the edge of a closed or unclosed curve on the flat or curved part of the blank. The new edge can be used to process three-dimensional parts with special spatial shapes and good rigidity, and can also be used to make parts on stamping parts that are assembled with other parts (such as nail holes, thread bottom holes and bearing seats, etc.).
[0003] Flanging is a type of stamping process. Aluminum parts of automobiles need to be flanging. However, the existing molds can only flanging one side of a part at a time, and can only fold one part at a time. To flanging the parts in two directions, two folding stations are required, which has low production efficiency. After the parts are folded twice in different directions, the accuracy and stability are easily affected. Summary of the invention
[0004] In view of the shortcomings of the above background technology, the purpose of the utility model is to provide a double mold for upper and lower flanging of parts, which can flanging the parts at the same time, thus saving mold costs, improving production efficiency, and improving the precision and stability of parts.
[0005] In order to solve the above technical problems, the purpose of the utility model is achieved as follows:
[0006] A double die for upper and lower flanging of a part, comprising a lower die seat, the middle of the lower die seat is recessed to form a first installation pit; a first limit block protrudes in the middle of the first installation pit, and a first nitrogen spring is arranged around the first limit block;
[0007] It also includes a lower mold pressing plate; the lower mold pressing plate is arranged in the first installation pit, a first through hole is opened in the middle of the lower mold pressing plate, a first limit block passes through the first through hole, the first limit block separates the lower mold pressing plate into two areas, and the piston rod of the first nitrogen spring supports the lower mold pressing plate;
[0008] It also includes a lower die set, wherein two lower die sets are respectively fixed on the lower die pressing plate, the upper surface of the lower die set fits the surface contour of the part, and the lower die set protrudes from the lower die seat;
[0009] It also includes an upper die seat, the middle of the upper die seat is recessed to form a second installation pit; a second nitrogen spring is arranged in the second pit;
[0010] It also includes an upper mold pressing plate, which is arranged in the second mounting pit, and the piston rod of the second nitrogen spring supports the upper mold pressing plate; the middle of the upper mold pressing plate is recessed to form a third mounting pit, and upper mold inserts are respectively installed on both sides of the third mounting pit, and the upper surface of the upper mold insert is in contact with the surface contour of the part, and the two upper mold inserts are respectively arranged opposite to the lower mold assembly.
[0011] On the basis of the above scheme and as a preferred scheme of the above scheme: three first nitrogen springs are respectively arranged on both sides of the first limit block; and six second nitrogen springs are arranged in the second pit.
[0012] On the basis of the above scheme and as a preferred scheme of the above scheme: it also includes a lower pressing plate; one end of the lower pressing plate is fixed on the lower die base, and the other end of the lower pressing plate is pressed on the lower die pressing plate and fixed;
[0013] It also includes an upper pressing plate, one end of which is fixed on the upper die seat, and the other end of which is fixed on the upper die pressing plate.
[0014] On the basis of the above scheme and as a preferred scheme of the above scheme: the lower die assembly includes a first lower die insert and a second lower die insert, the upper surface of the first lower die insert is in contact with the surface contour of the part, and the upper surface of the second lower die insert is in contact with the surface contour of the part; bolts pass through the lower die pressing plate and are respectively connected and fixed to the first lower die insert and the second lower die insert.
[0015] On the basis of the above scheme and as a preferred scheme of the above scheme: a lower die knife block is fixed on the first limit block, the lower die knife block protrudes from the upper die assembly and is embedded between two upper die inserts; the lower die knife block is arranged between the two first lower die inserts for splicing.
[0016] Based on the above solution and as a preferred solution of the above solution: staggered step installation surfaces are provided on the upper surfaces of the two side walls of the second recess;
[0017] The first upper die knife block and the second upper die knife block are respectively fixed on the step installation surface for splicing, and the first upper die knife block and the second upper die knife block protrude from the upper die insert block and stick to each other.
[0018] On the basis of the above scheme and as a preferred scheme of the above scheme: it also includes a spring plunger; the bottom of the spring plunger is screwed into the upper mold plate and fixed; four spring plungers pass through the upper mold plate and the upper mold insert respectively.
[0019] On the basis of the above scheme and as a preferred scheme of the above scheme: four corners of the lower die base and the upper die base are respectively cast with hanging rings.
[0020] Compared with the prior art, the utility model has the following outstanding and beneficial technical effects:
[0021] Compared with the prior art, the double die for upper and lower flanging of parts of the utility model comprises a lower die seat, a first nitrogen spring is installed in the lower die seat, a lower die pressing plate is arranged on the first nitrogen spring, a first lower die insert and a second lower die insert are installed on the lower die pressing plate, and they respectively fit the contour of the part; the upper surfaces of the first lower die insert and the second lower die insert are provided with concave and convex patterns, which are used to realize upper and lower reverse flanging at the same time; a second nitrogen spring is installed in the upper die seat, an upper die pressing plate is arranged on the second nitrogen spring, an upper die insert is installed on the upper die pressing plate, and the upper die insert is opposite to the upper die seat; the stamping flanging of the part is realized;
[0022] At the same time, the lower die plate is provided with two groups of lower dies, left and right, and the upper die plate is provided with two upper die inserts, so that two parts can be flanging at the same time;
[0023] The parts are flanging at the same time, which saves mold costs, improves production efficiency, and improves the accuracy and stability of the parts. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0025] Figure 2 It is a schematic diagram of the lower mold structure of the utility model.
[0026] Figure 3 It is a schematic diagram of the explosion structure of the lower mold of the utility model.
[0027] Figure 4 It is a schematic diagram of the structure of the lower die base of the utility model.
[0028] Figure 5 It is a schematic diagram of the upper die structure of the utility model.
[0029] Figure 6 It is a schematic diagram of the upper die explosion structure of the utility model.
[0030] Figure 7 It is a schematic diagram of the structure of the upper die seat of the utility model.
[0031] Figure 8 It is a schematic diagram of the structure of the upper mold pressing plate of the utility model.
[0032] Fig. 9 It is a schematic diagram of the structure of the parts of the utility model before flanging.
[0033] Fig.10 It is a schematic diagram of the rear structure of the parts of the utility model after flanging.
[0034] Reference numerals: lower die base 01; first mounting pit 010; first stopper 011; first nitrogen spring 012; lower die blade block 013; lower die pressing plate 02; first through hole 020; lower die assembly 03; first lower die insert 030; second lower die insert 031; upper die base 04; second mounting pit 040; second nitrogen spring 041; step mounting surface 042; first upper die blade block 043; second upper die blade block 044; upper die pressing plate 05; third mounting pit 050; upper die insert 06; lower pressing plate 07; spring plunger 08; lifting ring 09; DETAILED DESCRIPTION
[0035] The present invention will be further described below with reference to specific embodiments of the invention;
[0036] This embodiment provides a double die for upper and lower flanging of a part, including a lower die base 01, the middle of the lower die base 01 is recessed to form a first installation pit 010; a first limit block 011 protrudes in the middle of the first installation pit 010, and a first nitrogen spring 012 is arranged around the first limit block 011; the lower die base 01 is installed below the punching machine for placing the die, and the first limit block 011 is integrally formed with the lower die base 01 to achieve separation, limiting and fixing functions; bolts pass through the bottom surface of the lower die base 01 and are connected and fixed to the outer shell of the first nitrogen spring 012; the first nitrogen spring 012 plays a supporting and buffering role;
[0037] It also includes a lower mold plate 02; the lower mold plate 02 is arranged in the first installation pit 010, a first through hole 020 is opened in the middle of the lower mold plate 02, a first limit block 011 passes through the first through hole 020, the first limit block 011 separates the lower mold plate 02 into two areas, and the piston rod of the first nitrogen spring 012 supports the lower mold plate 02;
[0038] The lower mold plate 02 is arranged in the first mounting hole, the first nitrogen spring 012 supports the lower mold plate 02 to realize the up and down movement of the lower mold plate 02, and the first limit block 011 passes through the first through hole 020 for limiting;
[0039] It also includes a lower die set 03, two lower die sets 03 are respectively fixed on the lower die pressing plate 02, the upper surface of the lower die set 03 fits the surface contour of the part, and the lower die set 03 protrudes from the lower die seat 01; the lower die set 03 is used for stamping parts, and the concave and convex textures on the upper surface of the lower die set 03 fit the parts; the left and right lower die sets 03 are fixed on the lower die pressing plate 02, so that two parts can be flanging at the same time by stamping once, thereby improving the production effect;
[0040] It also includes an upper die base 04, the middle of the upper die base 04 is recessed to form a second installation pit 040; a second nitrogen spring 041 is arranged in the second pit; the upper die base 04 is located above the punching machine, the second installation pit 040 of the upper die base 04 is used to install the die, and the second nitrogen spring 041 plays a supporting and buffering role;
[0041] It also includes an upper mold pressing plate 05, which is arranged in the second mounting pit 040, and the piston rod of the second nitrogen spring 041 supports the upper mold pressing plate 05; the middle of the upper mold pressing plate 05 is recessed to form a third mounting pit 050, and upper mold inserts 06 are respectively installed on both sides of the third mounting pit 050, and the upper surface of the upper mold insert 06 is in contact with the surface contour of the part, and the two upper mold inserts 06 are respectively arranged opposite to the lower mold assembly 03.
[0042] The second nitrogen spring 041 presses the upper mold plate 05 to move up and down; the upper mold insert 06 fits the part, and the upper surface of the upper mold insert 06 is provided with concave and convex patterns;
[0043] As described above, the part is placed on the lower die set 03, the upper die insert 06 moves downward to contact the part, and then continues to move downward. The lower die set 03 moves downward to squeeze the first nitrogen spring 012, and the upper die insert 06 squeezes the second nitrogen spring 041. The part is flanging. After completion, the upper die insert 06 moves upward to separate from the part.
[0044] At the same time, the lower die plate 02 is provided with two groups of lower die sets 03, left and right, and the upper die plate 05 is provided with two upper die inserts 06, so as to realize the simultaneous flanging of two parts;
[0045] The parts are flanging at the same time, which saves mold costs, improves production efficiency, and improves the accuracy and stability of the parts.
[0046] Furthermore, three first nitrogen springs 012 are respectively disposed on both sides of the first limiting block 011 ; and six second nitrogen springs 041 are disposed in the second recess.
[0047] As described above, the six first nitrogen springs 012 and the second nitrogen springs 041 are arranged in two rows, and the pressure is applied evenly, so that the two sets of lower mold assemblies 03 and upper mold inserts 06 can have their own supporting forces without affecting each other;
[0048] Furthermore, it also includes a lower pressing plate 07; one end of the lower pressing plate 07 is fixed on the lower die base 01, and the other end of the lower pressing plate 07 is pressed and fixed on the lower die pressing plate 02;
[0049] It also includes an upper pressing plate, one end of which is fixed on the upper die base 04, and the other end of which is fixed on the upper die pressing plate 05.
[0050] As described above, the lower pressing plate 07 and the upper pressing plate are used to press on the lower die pressing plate 02 and the upper die pressing plate 05 respectively, and realize extrusion with the first nitrogen spring 012 and the second nitrogen spring 041;
[0051] Furthermore, the lower mold assembly 03 includes a first lower mold insert 030 and a second lower mold insert 031. The upper surface of the first lower mold insert 030 is in contact with the surface contour of the part, and the upper surface of the second lower mold insert 031 is in contact with the surface contour of the part. Bolts pass through the lower mold pressing plate 02 and are respectively connected and fixed to the first lower mold insert 030 and the second lower mold insert 031.
[0052] As described above, the upper surfaces of the first lower mold insert 030 and the second lower mold insert 031 are provided with concave and convex patterns, and the edges are concave or convex to realize two opposite flanges at the same time; so that a lower mold assembly 03 can flange the parts at the upper and lower sides at the same time, which saves mold costs, improves production efficiency, and improves the accuracy and stability of the parts.
[0053] Furthermore, a lower die knife block 013 is fixed on the first limiting block 011 , and the lower die knife block 013 protrudes from the lower die assembly 03 for being embedded between the two upper die inserts 06 ; the lower die knife block 013 is arranged to be spliced between the two first lower die inserts 030 .
[0054] As described above, the lower die cutter block 013 is assembled with the lower die assembly 03, and the surface edge of the lower die cutter block 013 is bent to form a cut, and the lower die cutter block 013 is used to cut off the redundant part of the part.
[0055] Furthermore, staggered step installation surfaces 042 are provided on the upper surfaces of the two side walls of the second recess;
[0056] The first upper die blade block 043 and the second upper die blade block 044 are respectively fixed on the step installation surface 042 for splicing. The first upper die blade block 043 and the second upper die blade block 044 protrude from the upper die insert block 06 and are attached to each other.
[0057] As described above, the first upper die blade block 043 and the second upper die blade block 044 are inserted into the outer edge of the lower die base 01 and cooperate with the lower die blade block 013 to cut off the excess part on the outside of the part. The parts with completed flanging can directly skip the cutting process, killing two birds with one stone.
[0058] Furthermore, it also includes a spring plunger 08; the bottom of the spring plunger 08 is screwed into the upper mold plate 05 and fixed; four spring plungers 08 pass through the upper mold plate 05 and the upper mold insert 06 respectively.
[0059] As described above, the bottom of the spring plunger 08 is threadedly fixed to the upper mold plate 05, and the top of the spring plunger 08 abuts against the part, which is used to eject the part from the upper mold insert 06 and the upper mold plate 05 after the flanging is completed, so as to realize material removal and facilitate workers to take it.
[0060] Furthermore, hanging rings 09 are cast at the four corners of the lower die base 01 and the upper die base 04 respectively.
[0061] As described above, the lifting ring 09 is directly cast in and fixed to achieve one-piece molding. The lifting ring 09 is in the shape of a round pancake and can be hooked by a hook to achieve lifting.
[0062] In the description of the present utility model, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present utility model.
[0063] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. In the present utility model, unless otherwise clearly specified and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection;
[0064] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.
Claims
1. A double mold for upper and lower flanging of parts, characterized in that: It comprises a lower die seat, the middle of the lower die seat is recessed to form a first installation pit; a first limit block protrudes in the middle of the first installation pit, and a first nitrogen spring is arranged around the first limit block; It also includes a lower mold pressing plate; the lower mold pressing plate is arranged in the first installation pit, a first through hole is opened in the middle of the lower mold pressing plate, a first limit block passes through the first through hole, the first limit block separates the lower mold pressing plate into two areas, and the piston rod of the first nitrogen spring supports the lower mold pressing plate; It also includes a lower die set, wherein two lower die sets are respectively fixed on the lower die pressing plate, the upper surface of the lower die set fits the surface contour of the part, and the lower die set protrudes from the lower die seat; It also includes an upper die seat, the middle of the upper die seat is recessed to form a second installation pit; a second nitrogen spring is arranged in the second pit; It also includes an upper mold pressing plate, which is arranged in the second mounting pit, and the piston rod of the second nitrogen spring supports the upper mold pressing plate; the middle of the upper mold pressing plate is recessed to form a third mounting pit, and upper mold inserts are respectively installed on both sides of the third mounting pit, and the upper surface of the upper mold insert is in contact with the surface contour of the part, and the two upper mold inserts are respectively arranged opposite to the lower mold assembly.
2. The double mold for upper and lower flanging of parts according to claim 1, characterized in that: Three first nitrogen springs are respectively arranged on both sides of the first limit block; and six second nitrogen springs are arranged in the second pit.
3. The double mold for upper and lower flanging of parts according to claim 1, characterized in that: It also includes a lower pressing plate; one end of the lower pressing plate is fixed on the lower die base, and the other end of the lower pressing plate is pressed and fixed on the lower die pressing plate; It also includes an upper pressing plate, one end of which is fixed on the upper die seat, and the other end of which is fixed on the upper die pressing plate.
4. The double mold for upper and lower flanging of parts according to claim 1, characterized in that: The lower die assembly includes a first lower die insert and a second lower die insert. The upper surface of the first lower die insert is in contact with the surface contour of the part, and the upper surface of the second lower die insert is in contact with the surface contour of the part. Bolts pass through the lower die pressing plate and are respectively connected and fixed to the first lower die insert and the second lower die insert.
5. The double mold for upper and lower flanging of parts according to claim 4, characterized in that: A lower die knife block is fixed on the first limiting block, and the lower die knife block protrudes from the lower die assembly and is used to be embedded between two upper die inserts; the lower die knife block is arranged between the two first lower die inserts for splicing.
6. The double mold for upper and lower flanging of parts according to claim 5, characterized in that: The upper surfaces of the two side walls of the second recess are provided with staggered step installation surfaces; The first upper die knife block and the second upper die knife block are respectively fixed on the step installation surface for splicing, and the first upper die knife block and the second upper die knife block protrude from the upper die insert block and stick to each other.
7. The double mold for upper and lower flanging of parts according to claim 6, characterized in that: It also includes a spring plunger; the bottom of the spring plunger is screwed into the upper die pressing plate and fixed; four spring plungers pass through the upper die pressing plate and the upper die insert respectively.
8. The double mold for upper and lower flanging of parts according to claim 7, characterized in that: The four corners of the lower die base and the upper die base are respectively cast with hanging rings.