CN104438825A - Cylindrical tube interior convex molding die - Google Patents
Cylindrical tube interior convex molding die Download PDFInfo
- Publication number
- CN104438825A CN104438825A CN201410544123.1A CN201410544123A CN104438825A CN 104438825 A CN104438825 A CN 104438825A CN 201410544123 A CN201410544123 A CN 201410544123A CN 104438825 A CN104438825 A CN 104438825A
- Authority
- CN
- China
- Prior art keywords
- mandrel
- groove
- counterdie
- cylindrical tube
- patrix
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
- B21D37/12—Particular guiding equipment, e.g. pliers; Special arrangements for interconnection or cooperation of dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
- B21D45/06—Stripping-off devices
- B21D45/08—Stripping-off devices interrelated with motion of tool
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention provides a cylindrical tube interior convex molding die which is high in molding efficiency and capable of guaranteeing the molding quality of products. The die comprises a fixed lower die body and an upper die body which is arranged above the lower die body and can be pressed downwards. The upper surface of the lower die body, in the length direction of the lower die body, is provided with a through groove of which the longitudinal section is semicircular, and a mandrel is arranged inside the through groove. The mandrel comprises an upper half mandrel body and a lower half mandrel body, the upper surface of the upper half mandrel body is provided with a groove, and a male die which can be pressed downwards is arranged over the groove. The die further comprises a flat key, a first air cylinder and a second air cylinder, the upper half mandrel body and the lower half mandrel body are connected through the flat key axially arranged, and the flat key is arranged at one end of the upper half mandrel body and one end of the lower half mandrel body, so that neither the upper half mandrel body nor the lower half mandrel body has the degree of freedom for radial sliding. The lower half mandrel body is connected with a piston rod of the first air cylinder in the axial direction, and the upper half mandrel body is connected with a piston rod of the second air cylinder in the radial direction of one end of the upper half mandrel body.
Description
Technical field
The present invention relates to a kind of mould, be specifically related to a kind of cylindrical tube convex mould.
Background technology
the Main Function of cylindrical shell is mechanism for being arranged at its inside, instrument or equipment provide a metastable working environment.Cylindrical shell is divided into cylindrical tube and spherical cylindrical shell, when cylindrical tube diameter is less, directly can make of seamless steel pipe; When diameter is larger, available steel plate is rolled into cylinder or on hydraulic press, is pressed into two semicircular cylinders with steel plate on veneer reeling machine, then both is welded together with weld seam, forms cylindrical tube.
In reality as required, the barrel of cylindrical tube often will make concave shape, as the urceolus for motorcycle and automotive muffler.Current cylindrical tube convex mould comprises fixing counterdie and to be arranged on above counterdie and the patrix had perpendicular to the counterdie free degree, it is semicircular first groove that counterdie upper surface has longitudinal cross-section, mandrel is provided with in groove, between mandrel and groove cell wall, there is gap, described mandrel comprises first mandrel and second mandrel, first mandrel upper surface is provided with the second groove of indent, and first mandrel, also referred to as die, is provided with the punch that can press down directly over described groove.
Above-mentioned mould is used to the method that cylindrical tube carries out indent shaping to be: manually first mandrel and second mandrel to be put together, first mandrel is made to become complete cylindrical mandrel with second mandrel matched moulds, cylindrical tube is set in cylindrical mandrel, gap between mandrel and groove cell wall holds the barrel of cylindrical tube, counterdie plays the effect of support to cylindrical tube, patrix presses down, until prop up cylindrical tube, cylindrical tube is played to the effect of clamping position, then punch presses down, continue to press down after touching the barrel of cylindrical tube, until arrive the bottom of the second groove, now cylindrical tube convex is shaping completes.When moving back mould, need manually second mandrel is first taken out, could by the cylindrical tube taking-up after shaping.
There is following problem in the mould of said structure: 1. often a shaping product all needs artificial placement and taking-up mandrel, and labor strength is large, and shaping efficiency is also low; 2. manual operation makes two mandrels put together, and cannot ensure that each operation can make the relative position of two mandrels consistent, and also easily produce slip between two mandrels when shaping, these all can affect the Forming Quality of product.
Summary of the invention
The invention provides a kind of shaping efficiency high, the cylindrical tube convex mould of forming quality of products can be ensured.
Cylindrical tube convex mould, comprise fixing counterdie and be arranged on the patrix that counterdie can press down, it is semicircular groove that the upper surface of counterdie is provided with longitudinal cross-section along counterdie length direction, mandrel is provided with in described groove inside, described mandrel comprises first mandrel and second mandrel, the upper surface of first mandrel is provided with groove, the punch that can press down is provided with directly over groove, also comprise flat key, first cylinder and the second cylinder, first mandrel is connected by the flat key axially arranged with second mandrel, flat key is arranged at the end of first mandrel and second mandrel, make first mandrel and second mandrel all without the free degree radially slided, second mandrel described is connected with the piston rod of the first cylinder in the axial direction, first mandrel described is connected with the piston rod of the second cylinder in the radial direction of end.
Mold work principle of the present invention is as follows: before cylindrical tube is placed on mandrel, the second cylinder is first utilized to drive first mandrel to move upward return, then utilize the first cylinder to drive second mandrel to move vertically to close up with first mandrel, adopt flat key that first mandrel and second mandrel are fixed afterwards, ensure that first mandrel and second mandrel are all without the free degree radially slided when cylindrical tube is body formed.Be placed on by cylindrical tube on the mandrel after closing up, patrix presses down clamping position cylindrical tube, punch down-pressing forming.After shaping, patrix moves upward, and utilize the first cylinder to drive second mandrel to exit vertically, first mandrel moves downward, and the female parts of cylindrical tube and the groove of first mandrel upper surface is departed from, thus is taken out smoothly by cylindrical tube.
Beneficial effect of the present invention: fixed by flat key between first mandrel of this programme and second mandrel, make first mandrel and second mandrel all without the free degree radially slided, guarantee the stability of first mandrel position in forming process, during such punch down-pressing forming, the product that concave shape error is larger can not be molded, ensure the quality of shaped article; Use the first cylinder and the second cylinder place and take out mandrel, not only reduce the labour intensity of workman, and compared to manual operation, substantially increase the efficiency of formed product.
Further, the longitudinal cross-section of described patrix is arch, and patrix is provided with two legs across counterdie, and the both sides of counterdie are provided with two guide rails, and leg can along described slide.Patrix presses down clamping position cylindrical tube by leg gradually at slide on rails, patrix can be avoided to press down excessive velocities impulsive force and cross the distortion of ambassador's cylindrical tube, affect product quality.
Further, the longitudinal cross-section of described patrix is arch, and patrix is provided with two legs across described groove, and the both sides that the upper surface of counterdie is positioned at described groove are provided with two gathering sills, and described two legs can slide along two gathering sills.The fit system of this kind of patrix and counterdie, makes this mold integral volume little, has the advantage occupied little space.
Further, the internal groove side wall of described groove is provided with multiple axial tread plate.The barrel of tread plate to cylindrical tube has rubbing action, prevents cylindrical tube from when shaping, producing small rolling.
Accompanying drawing explanation
Fig. 1 is the structural representation of cylindrical tube convex mould embodiment of the present invention;
Fig. 2 be in Fig. 1 embodiment the first cylinder and the second cylinder respectively with the syndeton schematic diagram of first mandrel and second mandrel.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:
Cylindrical tube convex mould as shown in Figure 1, comprises counterdie 1, patrix 2, groove 11, tread plate 111, gathering sill 12, leg 21, first mandrel 31, second mandrel 32, groove 311, punch 4, flat key 5, first cylinder 6 and the second cylinder 7.
Patrix 2 is arranged on the top of counterdie 1 and can presses down, and plays the effect of clamping position cylindrical tube.The fit system of patrix and counterdie can be: the longitudinal cross-section of patrix 2 is arch, and patrix 2 arranges two legs across counterdie.Arrange two guide rails in counterdie both sides, the bottom of guide rail has limited block, and two legs can along described slide across counterdie both sides.The fit system of patrix and counterdie also can be: the longitudinal cross-section semicircular in shape of patrix 2, patrix 2 arranges two legs 21 across described groove, the both sides that the upper surface of counterdie 1 is positioned at described groove 11 arrange two gathering sills 12, the bottom of gathering sill 12 is limit point, and two legs 21 vertically can slide along two gathering sills 12.
Counterdie 1 is fixed, it is semicircular groove 11 that the upper surface of counterdie 1 arranges longitudinal cross-section along counterdie length direction, the internal groove side wall of groove 11 arranges the tread plate 111 of three axis, and mandrel is arranged in groove 11, leaves gap between the internal groove side wall of mandrel and groove 11.Mandrel comprises first mandrel 31 and second mandrel 32, and the upper surface of first mandrel 31 arranges groove 311, and described in the present embodiment, groove 311 longitudinal cross-section is fan shape, is provided with the punch 4 that can press down directly over groove 311.
As shown in Figure 2, first mandrel 31 end radial direction is connected with the piston rod of the first cylinder 6, second mandrel 32 is connected with the piston rod of the second cylinder 7 in the axial direction, and the end that first mandrel 31 is relative with piston rod with second mandrel 32 all has swallow-tailed keyway, and flat key 5 is in dovetail shaped.Before cylindrical tube is placed on mandrel, the first cylinder 6 is needed to drive first mandrel to move upward return, then the second cylinder 7 drives second mandrel 32 to move vertically to close up with first mandrel, by in the dovetail keyway that swallow-tailed flat key 5 is inserted into first mandrel and second mandrel end, first mandrel and second mandrel are fixed afterwards, outwardly, namely first mandrel and second mandrel are all without the free degree radially slided for the large end of swallow-tailed flat key 5.Because the shape of flat key is swallow-tailed in this example, therefore, first mandrel 31 and second mandrel 32 one end are withstood by the piston rod of cylinder, the other end is by swallow-tailed flat key and first mandrel wedging, like this, when cylindrical tube indent is shaping, first mandrel 31 and second mandrel 32 also shaftless to the free degree, the quality of formed product can be ensured further.
After cylindrical tube indent is shaping, second cylinder 7 drives second mandrel 32 to exit vertically, first cylinder 6 drives first mandrel to move downward, groove 311 on cylindrical tube female parts and first mandrel is departed from, at this moment cylindrical tube workpiece can be taken out smoothly, carry out next step operation.
Above-described is only the preferred embodiment of the present invention; should be understood that; for a person skilled in the art; under the prerequisite not departing from structure of the present invention; some distortion and improvement can also be made; these also should be considered as protection scope of the present invention, and these all can not affect effect of the invention process and practical applicability.
Claims (4)
1. cylindrical tube convex mould, comprise fixing counterdie and be arranged on the patrix that counterdie can press down, it is semicircular groove that the upper surface of counterdie is provided with longitudinal cross-section along counterdie length direction, mandrel is provided with in described groove inside, described mandrel comprises first mandrel and second mandrel, the upper surface of first mandrel is provided with groove, the punch that can press down is provided with directly over groove, it is characterized in that, also comprise flat key, first cylinder and the second cylinder, first mandrel is connected by the flat key axially arranged with second mandrel, flat key is arranged at the end of first mandrel and second mandrel, second mandrel is made to have the free degree moved axially relative to first mandrel, make first mandrel and second mandrel all without the free degree radially slided, second mandrel described is connected with the piston rod of the first cylinder in the axial direction, first mandrel described is connected with the piston rod of the second cylinder in the radial direction of end.
2. cylindrical tube convex mould according to claim 1, is characterized in that, the longitudinal cross-section of described patrix is arch, and patrix is provided with two legs across counterdie, and the both sides of counterdie are provided with two guide rails, and leg can along described slide.
3. cylindrical tube convex mould according to claim 1, it is characterized in that, the longitudinal cross-section of described patrix is arch, patrix is provided with two legs across described groove, the both sides that the upper surface of counterdie is positioned at described groove are provided with two gathering sills, and described two legs can slide along two gathering sills.
4. cylindrical tube convex mould according to claim 1, is characterized in that, the internal groove side wall of described groove is provided with multiple axial tread plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410544123.1A CN104438825A (en) | 2014-10-15 | 2014-10-15 | Cylindrical tube interior convex molding die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410544123.1A CN104438825A (en) | 2014-10-15 | 2014-10-15 | Cylindrical tube interior convex molding die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104438825A true CN104438825A (en) | 2015-03-25 |
Family
ID=52886016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410544123.1A Pending CN104438825A (en) | 2014-10-15 | 2014-10-15 | Cylindrical tube interior convex molding die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104438825A (en) |
-
2014
- 2014-10-15 CN CN201410544123.1A patent/CN104438825A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |