CN215879406U - Bellows multiwave one-step forming die - Google Patents
Bellows multiwave one-step forming die Download PDFInfo
- Publication number
- CN215879406U CN215879406U CN202122101310.0U CN202122101310U CN215879406U CN 215879406 U CN215879406 U CN 215879406U CN 202122101310 U CN202122101310 U CN 202122101310U CN 215879406 U CN215879406 U CN 215879406U
- Authority
- CN
- China
- Prior art keywords
- die
- hole
- sheet
- sheets
- bolt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Abstract
The utility model relates to a multi-wave one-step forming die for a corrugated pipe, which comprises a top die and a bottom die which are axially arranged at intervals, wherein one group or more than one group of die groups are sequentially arranged between the top die and the bottom die along the axial direction, the single group of die groups consists of a plurality of die sheets which are axially arranged in parallel, adjacent die sheets are connected through a stop bolt, and the bottom die and the die sheet adjacent to the bottom die, the top die and the die sheet adjacent to the top die are connected through the same stop bolt; the die sheets are all in a circular sheet structure, guide blocks are uniformly arranged on the outer circumferential surfaces of the die sheets along the circumferential direction, and the guide blocks play a role in guiding when adjacent die sheets axially move relatively; according to the utility model, the adjacent die sheets are connected by plugging and driving the bolts, so that the consistency of the opening distance is ensured, the product molding quality is effectively improved, the stability is good, the integral structure of the die is simplified, and the assembly is convenient.
Description
Technical Field
The utility model relates to the technical field of corrugated pipe forming equipment, in particular to a corrugated pipe multi-wave one-step forming die.
Background
The automobile flexible joint is an important connecting piece for connecting an automobile engine and an exhaust system and playing roles in absorbing vibration and reducing vibration. The processing flow of the automobile flexible joint is generally as follows: the stainless steel plate is welded into a sleeve, then the sleeve is hydraulically formed into a corrugated pipe, and an outer net sleeve, a net protecting ring and the like are added. Wherein, the corrugated pipe forming process is a key process.
The existing corrugated pipe forming die has the following defects: the existing die is connected in a chain mode, the chain is easy to damage due to high pressure during hydraulic forming in the production process, the product rejection rate is high, the die piece cannot be thinned, the manufactured corrugated pipe is thick in waveform, and the pipe body is easy to bend and deform, so that the production difficulty is increased, the production cost is improved, and time and labor are wasted.
SUMMERY OF THE UTILITY MODEL
The applicant aims at the defects in the prior art and provides a corrugated pipe multi-wave one-step forming die with a reasonable structure, so that adjacent matrixes are connected by plugging and beating bolts, the consistency of the opening distance is ensured, the product forming quality is effectively improved, the stability is good, the integral structure of the die is simplified, and the assembly is convenient.
The technical scheme adopted by the utility model is as follows:
a corrugated pipe multi-wave one-step forming die comprises a top die and a bottom die which are axially arranged at intervals, wherein one group or more than one group of die groups are sequentially arranged between the top die and the bottom die along the axial direction, the single group of die groups consists of a plurality of die sheets which are axially arranged in parallel, adjacent die sheets are connected through a filling and beating bolt, and the bottom die and the die sheet adjacent to the bottom die, the top die and the die sheet adjacent to the top die are connected through the same filling and beating bolt; the die sheets are all in circular sheet structures, guide blocks are evenly arranged on the outer circumferential surfaces of the die sheets along the circumferential direction, and the guide blocks play a role in guiding when adjacent die sheets axially move relatively.
As a further improvement of the above technical solution:
the plugging bolt is of a structure which is locked from bottom to top, a step hole with a large bottom is formed in the lower die sheet or the bottom die, and a threaded hole is formed in the upper die sheet or the top die; the plug bolt penetrates through the step hole from bottom to top, and the tail end of the plug bolt facing upwards is provided with a thread part locked with the thread hole.
The bolt head with the downward plugging bolt is limited by the step of the step hole, the smooth shaft part is arranged between the bolt head and the thread part, the step is arranged at the joint of the smooth shaft part and the thread part, and the diameter of the smooth shaft part is larger than that of the thread part.
The length of the optical axis part is larger than the axial length of the small hole in the stepped hole, and the axial length of the threaded part is smaller than the axial length of the threaded hole.
The die sheet or the bottom die below the die sheet or the bottom die with the step holes is provided with a through containing hole, the diameter size of the containing hole is larger than or equal to that of a large hole in the step hole, and the containing hole forms a containing groove for relative movement of a bolt head of a plug bolt.
The centers of the top die, the die sheet and the bottom die are respectively provided with a hole, and the axial centers jointly form a cavity for accommodating and molding the corrugated pipe.
The top die, the die sheet and the bottom die are all circular structures formed by two semi-circular sheets which are independent relatively.
Two sides of the joint of the two semicircular sheets sequentially penetrate through the top die, each layer of die sheet and the bottom die from top to bottom, guide posts are installed on the top die, guide holes are formed in the top die, and linear bearings are assembled between the guide holes and the upper portions of the guide posts.
The structure of the single die is as follows: the novel anti-collision device comprises two sheet bodies which are oppositely matched into a circular shape and have two semicircular structures, wherein the middle parts of the joints of the two sheet bodies are jointly provided with a central hole which is axially communicated, the upper orifice of the central hole is concave downwards to form a step surface which is coaxially arranged and has an annular structure, and the inner wall surface of the central hole positioned below the step surface is of an inward convex arc structure.
The guide block is of an up-down symmetrical structure, the middle part of the inner side surface of the guide block is fixed with the outer circumferential surface of the die sheet, and the inner side surfaces of the guide block positioned above and below the die sheet are both provided with an outward inclined surface structure; the inclined plane structures of the guide blocks positioned on one side of the same template form a horn mouth structure with an outward opening.
The utility model has the following beneficial effects:
the utility model has compact and reasonable structure and convenient operation, ensures the consistency of the opening distance by connecting the adjacent matrix sheets through the plug bolts, effectively improves the product molding quality, has good stability, simplifies the integral structure of the die, is convenient for assembly, is particularly suitable for connecting and using the thin matrix sheets, assists in the production of automobile flexible joints with dense corrugation requirements, and effectively improves the product competitiveness;
the utility model also comprises the following advantages:
in the axial die lowering process, the axial distance between the die pieces is reduced, the lower die piece or the bottom die moves upwards relative to the axial direction of the stop bolt, and the bolt head of the stop bolt moves downwards relative to the die piece and is accommodated in the corresponding accommodating groove, so that the stop bolt is hidden in the forming die, and the stop bolt is compact and reasonable in overall structure and ingenious in layout;
the distance between adjacent die sheets is adjusted by replacing the type of the plug bolt, particularly the length of the plug bolt, so that the forming die is suitable for forming automobile flexible joints with different corrugation densities, and is convenient to assemble and maintain and high in use flexibility.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a partially enlarged view of a portion a in fig. 1.
Fig. 3 is an exploded view of the present invention.
Fig. 4 is a schematic view of the mounting between adjacent dies according to the present invention.
FIG. 5 is a schematic view of a single sheet of the present invention.
Wherein: 1. a base plate; 2. bottom die; 3. plugging a bolt; 4. a guide block; 5. a stamper; 6. carrying out top die; 7. a top plate;
31. a threaded portion; 32. a light axis part;
41. a bevel structure;
51. a sheet body; 52. a central bore; 511. a through hole; 512. a step surface; 513. an arc-shaped structure;
61. and a linear bearing.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1 and 3, the corrugated pipe multi-wave one-step forming mold of the present embodiment includes a top mold 6 and a bottom mold 2 which are axially spaced, one or more sets of mold pieces are sequentially installed between the top mold 6 and the bottom mold 2 along an axial direction, a single set of mold piece set is composed of a plurality of mold pieces 5 which are axially arranged in parallel, adjacent mold pieces 5 are connected by a calking bolt 3, the bottom mold 2 and the mold piece 5 adjacent thereto, and the top mold 6 and the mold piece 5 adjacent thereto are connected by the same calking bolt 3, and the adjacent mold pieces 5 are connected by the calking bolt 3, so that consistency of open-up distance is ensured, product forming quality is effectively improved, and stability is good; the die pieces 5 are all in a circular sheet structure, the guide blocks 4 are uniformly arranged on the outer circumferential surfaces of the die pieces 5 along the circumferential direction, and the guide blocks 4 play a role in guiding when the adjacent die pieces 5 move axially relative to each other.
As shown in fig. 4, the ramming bolt 3 is of a structure that is locked from bottom to top, a step hole with a large bottom is formed in the lower die piece 5 or the bottom die 2, and a threaded hole is formed in the upper die piece 5 or the top die 6; the plugging bolt 3 penetrates through the step hole from bottom to top, and the tail end of the plugging bolt 3 facing upwards is provided with a thread part 31 locked with the thread hole.
The downward bolt head of the tamping bolt 3 is limited by the step of the stepped hole, a smooth shaft part 32 is arranged between the bolt head and the thread part 31, the step is arranged at the joint of the smooth shaft part 32 and the thread part 31, and the diameter of the smooth shaft part 32 is larger than that of the thread part 31.
The length of the optical axis portion 32 is greater than the axial length of the small hole in the stepped hole, and the axial length of the threaded portion 31 is less than the axial length of the threaded hole.
The die piece 5 or the bottom die 2 below the die piece 5 provided with the step hole is provided with a through containing hole, the diameter size of the containing hole is larger than or equal to that of a large hole in the step hole, and the containing hole forms a containing groove for relative movement of the bolt head of the driving bolt 3.
In the axial die lowering process, the axial distance between the die pieces 5 is reduced, the die piece 5 or the bottom die 2 below moves upwards in the axial direction relative to the plug bolt 3, and the bolt head of the plug bolt 3 descends relative to the die piece 5 and is contained in the corresponding containing groove, so that the plug bolt 3 is hidden in the forming die, and the forming die is compact and reasonable in overall structure and ingenious in layout.
The centers of the top die 6, the die sheet 5 and the bottom die 2 are respectively provided with a hole, and the axial centers jointly form a cavity for accommodating and molding the corrugated pipe.
The top die 6, the die sheet 5 and the bottom die 2 are all circular structures formed by two independent semicircular sheets.
Two sides of the joint of the two semicircular sheets sequentially penetrate through the top die 6, each layer of die sheet 5 and the bottom die 2 from top to bottom, guide posts are installed on the top die 6, guide holes are formed in the top die, and linear bearings 61 are assembled between the guide holes and the upper portions of the guide posts, as shown in fig. 2, the linear bearings 61 assist the smooth and reliable axial movement of the guide posts.
The structure of the individual dies 5 is: the corrugated pipe comprises two sheet bodies 51 which are oppositely matched into a circular shape and have two semicircular structures, the middle parts of the joints of the two sheet bodies 51 are jointly provided with a central hole 52 which is axially communicated, the upper orifice of the central hole 52 is concave downwards to form a step surface 512 which is coaxially arranged and has an annular structure, the inner wall surface of the central hole 52 positioned below the step surface 512 is an inward convex arc-shaped structure 513, and as shown in fig. 5, the transition of the arc-shaped structure 513 is assisted by the forming of the corrugated pipe and the guarantee of the forming stability.
The guide block 4 is of an up-down symmetrical structure, the middle part of the inner side surface of the guide block 4 is fixed with the outer circumferential surface of the die piece 5, and the inner side surfaces of the guide block 4 positioned above and below the die piece 5 are both provided with outward inclined surface structures 41; the inclined surface structures 41 of the guide blocks 4 on one side of the same mold piece 5 jointly form a bell mouth structure with an opening facing radially outwards, so that the guide function is realized when the mold pieces 5 move axially relative to each other.
In this embodiment, the top surface of the top mold 6 is provided with a top plate 7, the bottom surface of the bottom mold 2 is provided with a bottom plate 1, and the bottom plate 1 and the top mold 6 are respectively assembled with an external cylinder body through the bottom plate 1 and the top plate 7.
In the embodiment, the single group of the die groups comprises six die sheets 5 which are axially arranged, and the proper number of the die sheets is selected according to the molding requirement; in the single-group die set, the plugging bolts 3 connecting the adjacent die sheets 5 are arranged in a staggered way along the axial direction; the sealing bolts 3 between the two connected dies 5 are arranged uniformly in the circumferential direction.
A plurality of through holes 511 are formed in the sheet body 51 of each die piece 5 along the circumferential direction, and according to actual use requirements, the through holes 511 comprise step holes, threaded holes and accommodating holes for relative movement of bolt heads of the stop bolts 3, so that the stop bolts 3 on the die pieces 5 are mounted and hidden, and the structure is compact.
In the embodiment, the distance between the adjacent die sheets 5 is adjusted by replacing the types of the plug bolts 3, particularly the length, so that the forming die is suitable for forming automobile flexible joints with different corrugation densities, and is convenient to assemble and maintain and high in use flexibility.
The use principle of the utility model is as follows:
placing the pipe blank into a forming device, and connecting the pipe blank with a lower pouring pressure head in a plug-in manner;
the lower die lifting mechanism is driven by an external power mechanism to lift and move each die sheet 5 along the guide column, the interval between the adjacent die sheets 5 is opened, and the interval opening distance is ensured by the length of the optical axis part 32 on the plug bolt 3;
the mould is closed under the action of an external cylinder body, namely, the left half assembly and the right half assembly are oppositely synthesized into a circular structure, the pipe blank is contained in the internal cavity, and the cylinder body is locked;
the pipe blank is pressurized and maintained by injecting water into the pipe blank by a lower injection head, and the pipe blank is plastically deformed along the shape of the interval between the adjacent die pieces 5 under the action of the upper injection head, so that a corrugated pipe structure is formed in a hydraulic mode.
The utility model has compact structure and skillful layout, not only realizes the molding of the corrugated pipe, but also simplifies the integral structure of the die, is convenient for assembly, is particularly suitable for connecting thin die pieces, is helpful for the production of automobile flexible joints with dense corrugations, and effectively improves the product competitiveness.
The above description is intended to illustrate the present invention and not to limit the present invention, which is defined by the scope of the claims, and may be modified in any manner within the scope of the present invention.
Claims (10)
1. The utility model provides a many ripples one shot forming of bellows mould, includes top mould (6) and die block (2) that axial interval arranged, its characterized in that: one group or more than one group of die groups are sequentially arranged between the top die (6) and the bottom die (2) along the axial direction, the single group of die groups consists of a plurality of die sheets (5) which are arranged in parallel along the axial direction, the adjacent die sheets (5) are connected through the ramming bolts (3), and the bottom die (2) and the die sheet (5) adjacent to the bottom die as well as the top die (6) and the die sheet (5) adjacent to the bottom die are connected through the same ramming bolts (3); the die (5) is a circular sheet structure, the guide blocks (4) are uniformly arranged on the outer circumferential surface of the die (5) along the circumferential direction, and the guide blocks (4) play a role in guiding when adjacent die (5) move axially relative to each other.
2. The multi-wave one-shot forming die for corrugated pipes as claimed in claim 1, wherein: the plugging bolt (3) is of a structure which is locked from bottom to top, a step hole with a large lower part and a small upper part is formed in the die sheet (5) or the bottom die (2) which is positioned below, and a threaded hole is formed in the die sheet (5) or the top die (6) which is positioned above; the plug bolt (3) penetrates through the step hole from bottom to top, and the tail end of the plug bolt (3) facing up is provided with a thread portion (31) locked with the thread hole.
3. The multi-wave one-shot forming die for corrugated pipes as claimed in claim 2, wherein: the bolt head of the downward plugging bolt (3) is limited by the step of the stepped hole, a smooth shaft part (32) is arranged between the bolt head and the thread part (31), the step is arranged at the joint of the smooth shaft part (32) and the thread part (31), and the diameter of the smooth shaft part (32) is larger than that of the thread part (31).
4. A bellows multi-wave one-shot forming die as claimed in claim 3, wherein: the length of the light shaft part (32) is larger than the axial length of the small hole in the stepped hole, and the axial length of the threaded part (31) is smaller than that of the threaded hole.
5. The multi-wave one-shot forming die for corrugated pipes as claimed in claim 2, wherein: the die piece (5) or the bottom die (2) below the die piece (5) provided with the step hole is provided with a through containing hole, the diameter size of the containing hole is larger than or equal to that of a large hole in the step hole, and the containing hole forms a containing groove for relative movement of a bolt head of the driving bolt (3).
6. The multi-wave one-shot forming die for corrugated pipes as claimed in claim 1, wherein: the centers of the top die (6), the die sheet (5) and the bottom die (2) are respectively provided with a hole, and the centers of the axial directions jointly form a cavity for accommodating and molding the corrugated pipe.
7. The mold for once forming corrugated pipe according to claim 6, wherein: the top die (6), the die sheet (5) and the bottom die (2) are all circular structures formed by two relatively independent semicircular sheets.
8. The mold for once forming a corrugated pipe according to claim 7, wherein: two sides of the joint of the two semicircular sheets sequentially penetrate through the top die (6), each layer of die sheet (5) and the bottom die (2) from top to bottom, guide holes are formed in the top die (6), and linear bearings (61) are assembled between the guide holes and the upper portions of the guide posts.
9. The multi-wave one-shot forming die for corrugated pipes as claimed in claim 1, wherein: the structure of the single die (5) is as follows: the anti-collision device comprises two sheet bodies (51) which are oppositely matched into a circular shape and have two semicircular structures, wherein the middle parts of the joints of the two sheet bodies (51) are jointly provided with a central hole (52) which is through axially, the upper orifice of the central hole (52) is concave downwards to form a step surface (512) which is coaxially arranged and has an annular structure, and the inner wall surface of the central hole (52) below the step surface (512) is of an inwards convex arc structure (513).
10. The multi-wave one-shot forming die for corrugated pipes as claimed in claim 1, wherein: the guide block (4) is of an up-down symmetrical structure, the middle part of the inner side surface of the guide block (4) is fixed with the outer circumferential surface of the template (5), and the inner side surfaces of the guide block (4) above and below the template (5) are both provided with outward inclined surface structures (41); the inclined plane structures (41) of the guide blocks (4) positioned on one side of the same die sheet (5) jointly form a horn mouth structure with an outward opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122101310.0U CN215879406U (en) | 2021-09-01 | 2021-09-01 | Bellows multiwave one-step forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122101310.0U CN215879406U (en) | 2021-09-01 | 2021-09-01 | Bellows multiwave one-step forming die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215879406U true CN215879406U (en) | 2022-02-22 |
Family
ID=80340693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122101310.0U Active CN215879406U (en) | 2021-09-01 | 2021-09-01 | Bellows multiwave one-step forming die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215879406U (en) |
-
2021
- 2021-09-01 CN CN202122101310.0U patent/CN215879406U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN215879406U (en) | Bellows multiwave one-step forming die | |
| CN201405467Y (en) | Internal core-pulling demolding structure at sealing groove of small pipe fitting | |
| CN113028116A (en) | Blank body of circular cavity valve body-containing valve cover suitable for multi-valve valves and machining method | |
| CN209552344U (en) | Gear die equipped with multijaw cast gate | |
| CN2163701Y (en) | Device for making metallic corrugated tubes | |
| CN216989714U (en) | Anti-deformation hub forging die | |
| CN1078842C (en) | Mould for injection moulding | |
| CN110270619A (en) | A kind of circular material blank ultrahigh-pressure hydraulic breathing intensifying device | |
| CN103184959B (en) | Armature-needle valve assembly, and molding assembling method and assembling tool thereof | |
| CN212288499U (en) | Mold cooling water channel | |
| CN201394906Y (en) | Forming die for preparing engineering plastic clutch outer casing | |
| CN209736411U (en) | impact hydraulic composite forming device for metal double-layer pipe | |
| CN209614013U (en) | The split type moulding stamper of special-shaped surge drum | |
| CN2069316U (en) | Bellows processing device | |
| CN215614359U (en) | Internal high-pressure forming die | |
| CN109435169A (en) | Gear die equipped with multijaw cast gate | |
| CN206085559U (en) | Sun three -way pipe injection mold | |
| CN219724502U (en) | Core mould, core and pipe casting mould | |
| CN217315362U (en) | Internal high-pressure final forming die | |
| CN218080268U (en) | Underground pulse generator centralizing base investment casting mold | |
| CN211640755U (en) | Plastic screw head forming die | |
| CN206169091U (en) | Monolithic structure cylinder gasket beading die utensil | |
| CN214684123U (en) | Compact chain precision forming die | |
| CN212072764U (en) | Double-shot mold for machining automobile parts | |
| CN221018557U (en) | Connecting joint forming die for welding cable end |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |