CN104492992A - Positioning device capable of preventing rotation of cylindrical barrel in sunken forming - Google Patents
Positioning device capable of preventing rotation of cylindrical barrel in sunken forming Download PDFInfo
- Publication number
- CN104492992A CN104492992A CN201410682596.8A CN201410682596A CN104492992A CN 104492992 A CN104492992 A CN 104492992A CN 201410682596 A CN201410682596 A CN 201410682596A CN 104492992 A CN104492992 A CN 104492992A
- Authority
- CN
- China
- Prior art keywords
- sleeve
- cylindrical tube
- positioning device
- push rod
- ringfeder
- 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
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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
- 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
Abstract
The invention provides a positioning device capable of preventing rotation of a cylindrical barrel in sunken forming. The positioning device comprises a stepped sleeve, an ejector rod and an eccentric cam, wherein the ejector rod is arranged in the sleeve, and the eccentric cam is arranged at one end of the ejector rod and capable of forcing the ejector rod to move axially. The other end of the ejector rod is provided with a center, a plurality of steel balls are arranged on the lateral faces of the center, are arranged on the outer wall of the sleeve in an embedded manner and have degree of freedom along the radial direction of the sleeve, a barrel-shaped expansion sleeve sleeves the steel balls, and one end of the expansion sleeve is fixed on the sleeve while the other end of the expansion sleeve is an insertion portion which can be inserted into a position between the cylindrical barrel and a mandrel.
Description
Technical field
The present invention relates to cylindrical shell forming technique, be specifically related to the shaping anti-rotation positioning device of a kind of cylindrical tube indent.
Background technology
cylindrical shell is divided into cylindrical tube and spherical cylindrical shell, and Main Function is for the mechanism of inside, instrument or equipment provide a metastable working environment.Under normal circumstances, the barrel of cylindrical tube often will make concave shape, so that install.As shown in Figure 1, current cylindrical tube convex mould comprises fixing counterdie, and it is semicircular groove that counterdie upper surface has longitudinal cross-section, mandrel is provided with in groove, mandrel upper surface is also provided with the groove of indent, and mandrel, also referred to as die, is provided with the punch that can press down directly over mandrel.Use above-mentioned mould to the method that cylindrical tube carries out indent shaping to be: to be set in by cylindrical tube on mandrel, by the cylindrical of counterdie support cylinder shape cylindrical shell, then punch pressure, indent is shaping.
Above-mentioned cylindrical tube indent is shaping exists following problem: be set on mandrel to enable cylindrical tube, necessarily there is between mandrel and cylinder gap, this just makes cylindrical tube when indent is shaping, very easily occurs slightly to rotate, and affects its Forming Quality.
Summary of the invention
The invention provides a kind of positioner rotated when preventing cylindrical tube indent shaping.
The present invention program is as follows: the shaping anti-rotation positioning device of cylindrical tube indent, comprise stair-stepping sleeve, be arranged on the push rod in sleeve and be arranged on the eccentric cam that push rod one end can force push rod to move axially, the other end of described push rod has top, multiple steel ball is provided with in top side, steel ball to be embedded on the outer wall of sleeve and the free degree had along sleeve radial direction, the ringfeder of tubular is arranged with in the periphery of steel ball, ringfeder one end is fixed on sleeve, and the other end of ringfeder is to insert the insertion section between cylindrical tube and mandrel.
This programme operation principle is as follows: after cylindrical tube is sheathed on mandrel, one end of ringfeder is inserted between cylindrical tube and mandrel cylindrical, rotate eccentric cam, eccentric cam promotes ejector rob axis and marches forward, the top steel ball that forces of push rod is along the barrel radial outward movement of sleeve, steel ball forces ringfeder bore to become large gradually, tensioner cylindrical tube inwall.The present invention, in cylindrical tube indent is shaping, can effectively prevent cylindrical tube from rotating by a small margin, can guarantee the quality that cylindrical tube indent is shaping.
Further, also comprise back-moving spring and spring base, the periphery of push rod is located at by back-moving spring, and one end of back-moving spring is fixed in the ladder section of sleeve, and the other end is fixed on spring base.Back-moving spring is used for automatically reseting at the shaping push rod afterwards of cylindrical tube indent, is beneficial to ringfeder and exits cylindrical tube inwall smoothly.
Further, for the ease of inserting between cylindrical tube and mandrel by ringfeder, insertion section is made to have flat tip.
Further, conveniently the operation of workman, eccentric cam is provided with swing handle.
Accompanying drawing explanation
Fig. 1 is the existing mould shaping for cylindrical tube indent;
Fig. 2 is the structural representation of the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:
As shown in Figure 2, the Reference numeral in accompanying drawing comprises: 1, sleeve; 2, push rod; 21, top; 3, eccentric cam; 31, swing handle; 4, back-moving spring; 5, spring base; 6, steel ball; 7, ringfeder; 71, insertion section; 8, cylindrical tube; 9, mandrel.
The shaping anti-rotation positioning device of cylindrical tube indent of this enforcement, comprise stair-stepping sleeve 1, push rod 2 is set in sleeve 1, the internal diameter of sleeve 1 path section and the external diameter of push rod 2 match, and push rod 2 are played to the effect of guiding, and the internal diameter of sleeve 1 large footpath section is greater than the external diameter of push rod 2, so that arrange back-moving spring 4, back-moving spring 4 is positioned at the periphery of push rod 2, and one end of back-moving spring 4 is fixed in the ladder section of sleeve 1, and the other end is fixed on spring base 5.
Push rod 2 one end arranges the eccentric cam 3 that push rod 2 can be forced to move axially, eccentric cam 3 is arranged on base, eccentric cam 3 is provided with swing handle 31, the other end of push rod 2 has top 21, four steel balls 6 are provided with in the side of top 21, steel ball 6 to be embedded on the outer wall of sleeve 1 and the free degree had along sleeve 1 radial direction, the ringfeder 7 of tubular is arranged with in the periphery of steel ball 6, ringfeder 7 one end is fixed on sleeve 1, the other end of ringfeder 7 is the insertion section 71 can inserted between cylindrical tube and mandrel, and insertion section 71 has flat tip.
During use, after cylindrical tube is sheathed on mandrel, one end of ringfeder is inserted between cylindrical tube 8 and mandrel 9 cylindrical, rotate eccentric cam, eccentric cam promotes ejector rob axis and marches forward, the top steel ball that forces of push rod is along the barrel radial outward movement of sleeve, and steel ball forces ringfeder bore to become large gradually, the inwall of tensioner cylindrical tube 8.
Above-described is only the preferred embodiment of the present invention, it should be pointed out that to those skilled in the art, and under the prerequisite not departing from structure of the present invention, can also make some distortion and improvement, these also should be considered as within protection scope of the present invention.
Claims (4)
1. the shaping anti-rotation positioning device of cylindrical tube indent, it is characterized in that, comprise stair-stepping sleeve, be arranged on the push rod in sleeve and be arranged on the eccentric cam that push rod one end can force push rod to move axially, the other end of described push rod has top, multiple steel ball is provided with in top side, described steel ball to be embedded on the outer wall of described sleeve and the free degree had along sleeve radial direction, the ringfeder of tubular is arranged with in the periphery of steel ball, ringfeder one end is fixed on sleeve, and the other end of ringfeder is to insert the insertion section between cylindrical tube and mandrel.
2. the shaping anti-rotation positioning device of cylindrical tube indent according to claim 1, it is characterized in that, also comprise back-moving spring and spring base, the periphery of push rod is located at by back-moving spring, one end of back-moving spring is fixed in the ladder section of sleeve, and the other end is fixed on spring base.
3. the shaping anti-rotation positioning device of cylindrical tube indent according to claim 1, it is characterized in that, described insertion section has flat tip.
4. the shaping anti-rotation positioning device of cylindrical tube indent according to claim 1, is characterized in that, described eccentric cam is provided with swing handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410682596.8A CN104492992A (en) | 2014-11-25 | 2014-11-25 | Positioning device capable of preventing rotation of cylindrical barrel in sunken forming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410682596.8A CN104492992A (en) | 2014-11-25 | 2014-11-25 | Positioning device capable of preventing rotation of cylindrical barrel in sunken forming |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104492992A true CN104492992A (en) | 2015-04-08 |
Family
ID=52934492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410682596.8A Pending CN104492992A (en) | 2014-11-25 | 2014-11-25 | Positioning device capable of preventing rotation of cylindrical barrel in sunken forming |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104492992A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108670178A (en) * | 2018-05-30 | 2018-10-19 | 合肥市第二人民医院 | One kind being used for otorhinolaryngologic adjustable check device |
-
2014
- 2014-11-25 CN CN201410682596.8A patent/CN104492992A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108670178A (en) * | 2018-05-30 | 2018-10-19 | 合肥市第二人民医院 | One kind being used for otorhinolaryngologic adjustable check device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150408 |
|
| WD01 | Invention patent application deemed withdrawn after publication |