CN114260736A - Opening sleeve for thin-wall step cover plate and thin-wall step cover plate machining method - Google Patents
Opening sleeve for thin-wall step cover plate and thin-wall step cover plate machining method Download PDFInfo
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- CN114260736A CN114260736A CN202111275560.4A CN202111275560A CN114260736A CN 114260736 A CN114260736 A CN 114260736A CN 202111275560 A CN202111275560 A CN 202111275560A CN 114260736 A CN114260736 A CN 114260736A
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- step cover
- opening sleeve
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- 238000003754 machining Methods 0.000 title abstract description 10
- 238000000034 method Methods 0.000 title abstract description 6
- 210000000078 claw Anatomy 0.000 claims description 17
- 238000003672 processing method Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 6
- 239000007779 soft material Substances 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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Abstract
The invention provides an opening sleeve for a thin-wall step cover plate and a machining method of the thin-wall step cover plate, and belongs to the technical field of machining. According to the invention, the clamping area between the clamp and the thin wall of the thin-wall step cover plate can be indirectly increased through the opening sleeve body, the point contact of the clamp and the thin-wall step cover plate is changed into surface contact, and the thin-wall step cover plate is effectively prevented from being clamped and deformed; the inverted conical surface can ensure that the thin-wall step cover plate cannot be thrown out due to high-speed rotation during cutting.
Description
Technical Field
The invention belongs to the technical field of machining, and relates to a machining device and a machining method, in particular to an opening sleeve for a thin-wall step cover plate and a machining method for the thin-wall step cover plate.
Background
During lathe machining, a workpiece needs to be clamped on a clamp of a lathe, and then a shaft, a disc, a sleeve and other workpieces with rotating surfaces are machined through a cutter. However, when some soft material workpieces are clamped by the existing clamp, the clamping force of the clamp is difficult to control due to the large plasticity and low hardness of the soft material workpieces, and the workpieces deform if the clamping force of the clamp is too large; if the clamping force of the clamp is too small, the workpiece is easy to throw out, and the operator is injured by mistake. Particularly, for thin-wall workpieces made of soft materials, the clamp is easy to form clamping stress on the surface of the workpiece, so that the workpiece is scrapped. Therefore, the product yield of the workpiece processing is very low.
Disclosure of Invention
The invention provides an opening sleeve for a thin-wall step cover plate and a processing method of the thin-wall step cover plate, aiming at the problems that when a step is machined on the surface of the thin-wall cover plate made of a soft material, the thin-wall cover plate is easy to be clamped and deformed due to large plasticity and low hardness of the soft material, or thrown out due to high-speed rotation when the step is machined, and is easy to be clamped and scrapped by a clamp.
The opening sleeve is sleeved on the outer side of the thin-wall step cover plate, point contact clamped by the existing clamp is changed into surface contact, the problem that the workpiece is deformed due to clamping stress formed on the surface of the workpiece by the clamp is effectively solved, meanwhile, the inverted conical surface is arranged on one side, in contact with the edge of the workpiece, of the sleeving part of the opening sleeve, and when the clamping force is applied, the thin-wall step cover plate can generate micro deformation in the opening sleeve, the micro deformation cannot influence the use of the thin-wall step cover plate, the quality of the thin-wall step cover plate can be ensured, and meanwhile, the inverted conical surface can well prevent the workpiece from being thrown out; the specific technical scheme is as follows:
the opening sleeve for the thin-wall step cover plate comprises an opening sleeve body, wherein a sleeving part is arranged on the opening sleeve body, the sleeving part is an annular sleeving groove which is axially arranged along the opening sleeve body, and the inner side wall surface of the annular sleeving groove is an inverted conical surface.
Further inject, still be provided with the opening on the opening cover body, the opening is the movable logical groove that extends the formation to one side edge of opening cover body along the central point of opening cover body, the movable logical groove and annular cup joint the groove intercommunication.
Further limited, the taper of the reverse taper surface is 1-5 degrees.
Further, the width of the opening is 1-2 mm.
The thin-wall step cover plate processing method based on the opening sleeve for the thin-wall step cover plate comprises the following steps:
1) sleeving the opening sleeve body on the thin wall of the thin-wall step cover plate to enable the notch of the annular sleeving groove to be close to the cutting surface of the thin-wall step cover plate;
2) the soft claws on the soft claw clamping device are clamped on the outer wall of the opening sleeve body, so that the thin-wall step cover plate is fixed, the opening part can ensure that the opening sleeve body contracts along the radial direction under the stress state, and the inverted conical surface on the annular sleeving groove prevents the thin-wall step cover plate from being thrown out during cutting;
3) and cutting the step structure on the thin-wall step cover plate.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention discloses an opening sleeve for a thin-wall step cover plate, which comprises an opening sleeve body, wherein a sleeving part is arranged on the opening sleeve body, the sleeving part is an annular sleeving groove which is axially arranged along the opening sleeve body, and the inner side wall surface of the annular sleeving groove is an inverted conical surface. The clamping area between the clamp and the thin wall of the thin-wall step cover plate can be indirectly increased through the opening sleeve body, the point contact of the clamp and the thin-wall step cover plate is changed into surface contact, and the thin-wall step cover plate is effectively prevented from being clamped and deformed; the inverted conical surface can ensure that the thin-wall step cover plate cannot be thrown out due to high-speed rotation during cutting.
2. The opening sleeve body is also provided with an opening part, the opening part is a movable through groove formed by extending from the central position of the opening sleeve body to the edge of one side of the opening sleeve body, the opening part can provide a contraction space for the opening sleeve body when stressed, and the opening sleeve body can be more conveniently sleeved on the thin wall of the thin-wall step cover plate.
3. The taper of the inverted conical surface is 1-5 degrees, the taper can ensure that the contact area between the opening sleeve body and the thin wall of the thin-wall step cover plate is large enough, and meanwhile, a workpiece can be prevented from being thrown out.
Drawings
FIG. 1 is a front view of an opening sleeve body for processing a thin-walled step cover plate according to the present invention;
FIG. 2 is a side view of the opening sleeve body for thin-walled step cover plate processing according to the present invention;
FIG. 3 is a partial enlarged view of portion A of FIG. 2;
fig. 4 is a schematic connection diagram of the soft claw clamping device and the thin-wall step cover plate.
FIG. 5 is a schematic view of a thin-walled stepped cover plate.
FIG. 6 is a schematic drawing showing the dimension of the split bush for thin-walled step cover plate processing.
The device comprises a base, an opening sleeve body, an opening part, a sleeving part, a reverse conical surface, a soft claw clamping device, a soft claw and a thin-wall step cover plate, wherein the opening sleeve body is 1, the opening part is 11, the sleeving part is 12, the reverse conical surface is 121, and the thin-wall step cover plate is 3.
Detailed Description
The technical solutions of the present invention will be further explained below with reference to the drawings and examples, but the present invention is not limited to the embodiments explained below.
The opening sleeve for the thin-wall step cover plate comprises an opening sleeve body 1, wherein a sleeving part 12 is arranged on the opening sleeve body 1, the sleeving part 12 is an annular sleeving groove which is axially arranged along the opening sleeve body 1, and the inner side wall surface of the annular sleeving groove is an inverted conical surface 121. The opening sleeve body 1 is further provided with an opening part 11, the opening part 11 is a movable through groove formed by extending from the center of the opening sleeve body 1 to the edge of one side of the opening sleeve body 1, and the movable through groove is communicated with the annular sleeve groove. The taper of the reverse tapered surface 121 is 1 to 5 degrees. The width of the opening 11 is 1-2 mm.
Example 1
Referring to fig. 1 to 3, the opening sleeve for the thin-wall step cover plate of the present embodiment includes an opening sleeve body 1, a sleeve portion 12 and an opening portion 11 are disposed on the opening sleeve body 1, the opening sleeve body 1 is of an annular structure, the sleeve portion 12 is an annular sleeve groove disposed along an axial direction of the opening sleeve body 1, a cross section of the annular sleeve groove is circular, opening calibers of the annular sleeve groove are sequentially reduced from a notch to a groove bottom wall, and a reverse tapered surface 121 is formed on a side wall surface of the annular sleeve groove; the taper of the reverse tapered surface 121 is 3 °; the opening 11 is the activity that extends the formation to one side edge of opening cover body 1 along the central point of opening cover body 1 and leads to the groove, and the activity leads to the groove and is the equal open-ended cell type structure in top and relative both sides portion, and the cross section that the groove was led to in the activity is the U type, and the groove is led to in the activity and cup joints the in-process at opening cover body 1 and provides the activity space for opening cover body 1. The movable through groove is communicated with the annular sleeving groove, and the opening width of the opening part 11 is 1.5 mm.
Example 2
The thin-wall step cover plate processing method comprises the following steps:
1) sleeving the opening sleeve body 1 on the thin wall of the thin-wall stepped cover plate 3 to enable the notch of the annular sleeving groove to be close to the cutting surface of the thin-wall stepped cover plate 3;
2) 3 soft claws 21 on the soft claw clamping device are clamped on the outer wall of the opening sleeve body 1, so that the thin-wall step cover plate 3 is fixed, the opening part 11 can ensure that the opening sleeve body 1 contracts along the radial direction under the stress state, a contraction space is provided for the opening sleeve body 1, and the inverted cone-shaped surface 121 on the annular sleeving groove prevents the thin-wall step cover plate 3 from being thrown out during cutting;
3) and cutting the step structure on the thin-wall step cover plate 3, taking down the step structure from the soft claws 21 after cutting, and taking down the opening sleeve body on the outer side of the thin wall of the thin-wall step cover plate 3 to finish machining.
Referring to fig. 4, the soft claw clamping device of this embodiment includes fixed part and 3 soft claws 21, and the fixed part is cylindric structure, and 3 soft claws 21 all with fixed part fixed connection, 3 soft claws 21 distribute along the circumference of fixed part, and 3 soft claws 21 all along the circumference centre gripping of opening cover body 1 on the lateral wall of opening cover body 1.
Preferably, the 3 soft claws 21 of the present embodiment are uniformly distributed along the circumferential direction of the fixing portion, so that the stress of the thin-wall step cover plate 3 is more uniform. And the part is clamped by the soft three-jaw clamping opening sleeve, so that the automatic centering effect of the part can be achieved.
In the invention, the opening sleeve is suitable for a thin-wall step cover plate with the diameter being more than phi 20 mm. And (3) processing thin-wall parts with the diameter phi d and the thickness delta more than or equal to 6. Thinnest as low as 3 mm. Schematic of Φ d and δ is shown in FIG. 5.
The diameter/thickness of formula 1 is ═ d/delta ≥ 6mm
The clamping depth L of the opening sleeve part is delta-0.7, and the schematic view of L is shown in figure 6.
The opening sleeve inverted cone angle theta is equal to phi d/57 notes: 57 DEG constant 1 radian 180 DEG/pi 57 DEG
Therefore, the value of θ increases with part diameter.
The width W of the opening sleeve is calculated according to the following formula:
W＝1mm，Фd/δ≥6
W＝1.5mm，Фd/δ≥10
W＝1.8mm，Фd/δ≥12
in the invention, the taper of the inverted conical surface 121 can also be 1 °, 1.1 °, 1.2 °, 1.3 °, 1.4 °, or 1.5 °; the opening width of the opening portion 11 may be 1 mm, 1.2 mm, 1.4 mm, 1.5 mm, 1.6 mm, 1.8 mm, or 2 mm; the number of soft claws 21 may be 3, 4, 5, 6 or even more.
Claims (5)
1. The opening sleeve for the thin-wall step cover plate is characterized by comprising an opening sleeve body (1), wherein a sleeving part (12) is arranged on the opening sleeve body (1), the sleeving part (12) is an annular sleeving groove which is axially arranged along the opening sleeve body (1), and the inner side wall surface of the annular sleeving groove is an inverted conical surface (121).
2. The opening sleeve for the thin-wall step cover plate according to claim 1, wherein the opening sleeve body (1) is further provided with an opening part (11), the opening part (11) is a movable through groove formed by extending from the central position of the opening sleeve body (1) to one side edge of the opening sleeve body (1), and the movable through groove is communicated with the annular sleeve groove.
3. The opening sleeve for the thin-walled stepped cover plate according to claim 2, wherein the taper of the reverse tapered surface (121) is 1 ° to 5 °.
4. The opening cover for a thin-walled stepped lid plate according to claim 3, wherein the width of the opening portion (11) is 1 to 2 mm.
5. The thin-wall step cover plate processing method formed by the opening sleeve for the thin-wall step cover plate according to any one of claims 2 to 4, characterized by comprising the following steps:
1) sleeving the opening sleeve body (1) on the thin wall of the thin-wall step cover plate (3) to enable the notch of the annular sleeving groove to be close to the cutting surface of the thin-wall step cover plate (3);
2) the thin-wall step cover plate (3) is fixed by clamping a plurality of soft claws (21) on the soft claw clamping device on the outer wall of the opening sleeve body (1), the opening part (11) can ensure that the opening sleeve body (1) contracts along the radial direction under the stress state, and the inverted cone-shaped surface (121) on the annular sleeving groove prevents the thin-wall step cover plate (3) from being thrown out during cutting;
3) and cutting a step structure on the thin-wall step cover plate (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111275560.4A CN114260736B (en) | 2021-10-29 | 2021-10-29 | Opening sleeve for thin-wall step cover plate and thin-wall step cover plate processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111275560.4A CN114260736B (en) | 2021-10-29 | 2021-10-29 | Opening sleeve for thin-wall step cover plate and thin-wall step cover plate processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114260736A true CN114260736A (en) | 2022-04-01 |
| CN114260736B CN114260736B (en) | 2024-05-24 |
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| CN202111275560.4A Active CN114260736B (en) | 2021-10-29 | 2021-10-29 | Opening sleeve for thin-wall step cover plate and thin-wall step cover plate processing method |
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2021
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| CN101332516A (en) * | 2007-06-25 | 2008-12-31 | 上海海事大学 | Processing Technology of Annular Thin-walled Parts |
| CN201244687Y (en) * | 2008-04-16 | 2009-05-27 | 上海海事大学 | Special tooling for processing ring shaped thin wall member |
| CN101697439A (en) * | 2009-09-11 | 2010-04-21 | 无锡哈电电机有限公司 | Machining device of excircle of thin-walled workpiece of motor |
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| CN104842179A (en) * | 2014-02-18 | 2015-08-19 | 成都云力机械有限公司 | Thin-walled cylinder machining fixture |
| CN204686511U (en) * | 2015-06-09 | 2015-10-07 | 江西铜业股份有限公司 | A kind of double cone diaphragm flexures chuck |
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| CN206028741U (en) * | 2016-06-25 | 2017-03-22 | 苏州福乐友机械科技有限公司 | Resistance to deformation thin -walled workpiece turning frock |
| CN205968360U (en) * | 2016-08-08 | 2017-02-22 | 洛阳轴研科技股份有限公司 | Transition disc that horizontal lathe clamping thin wall bearing lasso was used |
| CN206169697U (en) * | 2016-11-17 | 2017-05-17 | 江南工业集团有限公司 | Engine tail pipe snap ring facing (operation) clamping device |
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| CN208067813U (en) * | 2018-03-29 | 2018-11-09 | 河南中原吉凯恩气缸套有限公司 | A kind of thin-walled ring milling vehicle vertical clamp |
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| CN114260736B (en) | 2024-05-24 |
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