CN115609035A - Axial attitude self-adaptive array composite pipe clamping device and method - Google Patents
Axial attitude self-adaptive array composite pipe clamping device and method Download PDFInfo
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- CN115609035A CN115609035A CN202211402927.9A CN202211402927A CN115609035A CN 115609035 A CN115609035 A CN 115609035A CN 202211402927 A CN202211402927 A CN 202211402927A CN 115609035 A CN115609035 A CN 115609035A
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- mandrel
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- conical block
- pressing plate
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- 239000002131 composite material Substances 0.000 title claims abstract description 77
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 238000003825 pressing Methods 0.000 claims description 41
- 230000003044 adaptive effect Effects 0.000 claims description 5
- 230000036544 posture Effects 0.000 claims 3
- 230000008569 process Effects 0.000 abstract description 4
- 238000003754 machining Methods 0.000 description 3
- 210000000078 claw Anatomy 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/40—Expansion mandrels
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention provides an axial posture self-adaptive array composite pipe clamping device and method. The array composite pipe blank processing device comprises a clamp body and an internal expansion unit connected to the clamp body in an angle-adjustable manner, wherein the internal expansion unit comprises a mandrel and telescopic clamping jaws sleeved on the mandrel, the array composite pipe blank to be processed is placed on a supporting surface of the clamp body, the mandrel enters the corresponding composite pipe, the telescopic clamping jaws are used for being sleeved into the mandrel from the upper part of the composite pipe and then clamped in the composite pipe, a mandrel fixing mechanism is sleeved on the mandrel, and the mandrel fixing mechanism is used for fixing the mandrel after the length and the angle are adjusted. The invention can self-adapt to the axis of the corresponding composite pipe for the axis angle of the internal expansion unit in the clamping process of the array composite pipe, and theoretically inhibit the generation of clamping stress generated by the axis angle error of the composite pipe. The clamping process is simple, and the use is convenient.
Description
Technical Field
The invention relates to the technical field of clamping, in particular to an axial posture self-adaptive array composite pipe clamping device and method.
Background
The array composite pipe is a typical honeycomb structure, is made of single cylindrical shell-shaped composite pipe units through two-dimensional close arrangement, has the advantages of low density, high axial rigidity, excellent impact resistance, vibration reduction, strong performance designability and the like as shown in figure 1, and can be applied to the manufacturing of industrial products such as aerospace, chemical engineering and the like. Similar to the honeycomb structure, the array composite pipe is generally used in a sandwich structure, i.e., the array composite pipe is used as a sandwich and assembled with upper and lower skins to form a sandwich structure. When the skin has the requirement of a specific surface type, the array composite pipe needs to be machined into a matched shape by a machining method.
Reliable and stable clamping is the basis for realizing high-quality processing of the array composite pipe. However, in the preparation process of the array composite pipe, a glue layer exists between the composite pipe units, and the cylindricity of the composite pipe has errors, so that the axes of the adjacent composite pipes cannot be completely parallel, the position and the posture of the axis of the composite pipe can float within a certain range, when the array composite pipe is clamped by using the clamping unit with a fixed position, large local clamping stress can be introduced, and the surface shape precision of the machined surface can be deteriorated due to stress release and clamping rebound deformation after machining. Therefore, an axial posture self-adaptive clamping device and method are needed, the axial posture of the clamping unit can be freely adjusted in a corresponding range according to the axis of the appointed composite pipe, the clamping stress is reduced, and the machining precision is improved.
Disclosure of Invention
In light of the above-mentioned technical problems, an axial attitude adaptive array composite pipe clamping device and method are provided. The technical means adopted by the invention are as follows:
the array composite pipe clamping device with the self-adaptive axial posture comprises a clamp body and an internal expansion unit connected to the clamp body in an angle-adjustable mode, wherein the internal expansion unit comprises a mandrel and telescopic clamping jaws sleeved on the mandrel, blanks of array composite pipes to be processed are placed on a supporting surface of the clamp body, the mandrel enters the corresponding composite pipes, the telescopic clamping jaws are used for being sleeved into the mandrel from the upper portion of the composite pipes and then clamped inside the composite pipes, a mandrel fixing mechanism is sleeved on the mandrel in a sleeved mode, and the mandrel fixing mechanism is used for fixing the mandrel after the length and the angle are adjusted.
Further, the mandrel comprises an inner mandrel and an outer mandrel, the inner mandrel and the outer mandrel are in clearance fit, the length of the mandrel is adjusted by changing the relative position of the inner mandrel and the outer mandrel, and the inner mandrel is fixed on the joint bearing and then connected to the clamp body in an angle-adjustable mode.
Further, the mandrel fixing mechanism comprises a mandrel pressing plate and a mandrel fixing screw, wherein the mandrel pressing plate is installed above the outer mandrel and fixed by the mandrel fixing screw.
Further, pin holes are formed in the inner spindle and the outer spindle, and the cylindrical pins are in clearance fit with the pin holes of the inner spindle and the outer spindle respectively, so that relative rotation of the inner spindle and the outer spindle is limited.
Furthermore, the telescopic clamping jaw comprises a lower conical block, a clamping jaw, an upper conical block and a conical block pressing plate, the lower conical block, the clamping jaw, the upper conical block and the conical block pressing plate are sequentially sleeved into the mandrel from the upper part of the composite pipe, the conical block pressing plate and the outer mandrel are connected together through threads, and the expansion of the composite pipe clamp is completed through adjusting the pressing position of the conical block pressing plate.
The invention also discloses an adjusting method of the array composite pipe clamping device, which comprises the following steps:
and 5, connecting the inner mandrel and the outer mandrel together through a mandrel pressing plate and a mandrel fixing screw, limiting the inclination angle of the clamping device and the length of the mandrel, and completing clamping.
Compared with the prior art, the invention has the following advantages:
the axial angle of the internal expansion unit in the clamping process of the array composite pipe can be self-adaptive to the axial line of the corresponding composite pipe, and the clamping stress generated by the axial angle error of the composite pipe is theoretically inhibited. The clamping process is simple and the use is convenient.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of an array composite tube structure according to the present invention.
FIG. 2 is a schematic cross-sectional view of the present invention.
FIG. 3 is a schematic view of the entire clamping and cross-sectional view of the array composite tube of the present invention.
FIG. 4 is a schematic view of the whole clamping axis of the array composite pipe of the present invention.
In the figure: 1. the device comprises a joint bearing, 2, an outer mandrel, 3, an inner mandrel, 4, a taper block pressing plate, 5, a mandrel pressing plate, 6, a mandrel fixing screw, 7, an upper taper block, 8, a clamping jaw, 9, a cylindrical pin, 10, a lower taper block, 11, a composite pipe, 12, an installation plate, 13 and a clamp body.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 2 to 4, the embodiment of the invention discloses an array composite pipe clamping device with an adaptive axial posture, which comprises a clamp body 13 and an internal expansion unit connected to the clamp body in an angle-adjustable manner, wherein the internal expansion unit comprises a mandrel and a telescopic claw sleeved on the mandrel, a blank of an array composite pipe to be processed is placed on a supporting surface of the clamp body, the mandrel enters a corresponding composite pipe 11, the telescopic claw is used for being sleeved on the mandrel from the upper part of the composite pipe and then being clamped in the composite pipe, a mandrel fixing mechanism is sleeved on the mandrel and used for fixing the mandrel after the length and the angle are adjusted.
Specifically, the mandrel comprises an inner mandrel 3 and an outer mandrel 2, the inner mandrel 3 is in clearance fit with the outer mandrel 2, the length of the mandrel is adjusted by changing the relative positions of the inner mandrel 3 and the outer mandrel 2, the lower end of the inner mandrel 3 is fixed at a threaded hole of an inner ring of the joint bearing 1 through threads, and the joint bearing 1 is fixed on a clamp body 13 through a mounting plate 12 through bolts. The inner ring and the outer ring of the joint bearing 1 can rotate relatively, so that the expansion unit connected with the inner ring can adjust the inclination angle.
Specifically, the spindle fixing mechanism comprises a spindle pressing plate 5 and a spindle fixing screw 6, wherein the spindle pressing plate 5 is installed above the outer spindle 2 and fixed by the spindle fixing screw 6.
Specifically, pin holes are formed in the inner spindle 3 and the outer spindle 2, and the cylindrical pins 9 are in clearance fit with the pin holes of the inner spindle 3 and the outer spindle 2 respectively, so that relative rotation of the inner spindle 3 and the outer spindle 2 is limited.
The telescopic clamping jaw specifically comprises a lower conical block 10, a clamping jaw 8, an upper conical block 7 and a conical block pressing plate 4, wherein the lower conical block 10, the clamping jaw 8, the upper conical block 7 and the conical block pressing plate 4 are sequentially sleeved into the mandrel from the upper part of the composite pipe, the conical block pressing plate 4 is connected with the outer mandrel 2 through threads, and the composite pipe clamp is expanded through adjusting the pressing position of the conical block pressing plate 4.
The invention also discloses an adjusting method of the array composite pipe clamping device, which comprises the following steps:
specifically, a special spanner is used for screwing a threaded hole in the center of the conical block pressing plate 4 into a thread in the upper end of the outer mandrel 2, so that the conical block pressing plate 4 pushes the upper conical block 7 downwards, the upper conical block 7 and the lower conical block 10 are close to each other, the clamping jaws 8 in contact with the upper conical block and the lower conical block are spread, the cylindrical surfaces of the clamping jaws 8 are in contact with and extrude the inner surface of the composite pipe 11, and the composite pipe 11 is expanded.
and 5, after the length of the mandrel is determined, connecting the inner mandrel 3 and the outer mandrel 2 together through a mandrel pressing plate 5 and a mandrel fixing screw 6, limiting the change of the length of the subsequent mandrel, and completing clamping.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. The array composite pipe clamping device with the self-adaptive axial posture is characterized by comprising a clamp body and an internal expansion unit connected to the clamp body in an angle-adjustable mode, wherein the internal expansion unit comprises a mandrel and a telescopic clamping jaw sleeved on the mandrel, an array composite pipe blank to be processed is placed on a supporting surface of the clamp body, the mandrel enters the corresponding composite pipe, the telescopic clamping jaw is used for being clamped inside the composite pipe after being sleeved on the mandrel from the upper side of the composite pipe, a mandrel fixing mechanism is sleeved on the mandrel, and the mandrel fixing mechanism is used for fixing the mandrel after the length and the angle are adjusted.
2. The axial attitude adaptive array composite pipe clamping device according to claim 1, wherein the mandrel comprises an inner mandrel and an outer mandrel, the inner mandrel and the outer mandrel are in clearance fit, the length of the mandrel is adjusted by changing the relative positions of the inner mandrel and the outer mandrel, and the inner mandrel is fixed on a joint bearing and then connected to the clamp body in an angle-adjustable manner.
3. The axial attitude adaptive array composite pipe clamping device according to claim 2, wherein the mandrel fixing mechanism comprises a mandrel pressing plate and a mandrel fixing screw, the mandrel pressing plate is mounted above the outer mandrel and fixed by the mandrel fixing screw therebetween.
4. The clamping device for the composite pipe with the self-adaptive array of the axial postures as claimed in claim 2, wherein pin holes are formed in the inner mandrel and the outer mandrel, and the cylindrical pins are in clearance fit with the pin holes of the inner mandrel and the outer mandrel respectively, so that the relative rotation of the inner mandrel and the outer mandrel is limited.
5. The array composite pipe clamping device with the self-adaptive axial posture as claimed in claim 2, wherein the telescopic clamping jaws comprise lower conical blocks, clamping jaws, upper conical blocks and conical block pressing plates, the lower conical blocks, the clamping jaws, the upper conical blocks and the conical block pressing plates are sequentially sleeved into the mandrel from the upper part of the composite pipe, the conical block pressing plates and the outer mandrel are connected together through threads, and the expansion of the composite pipe clamp is completed through adjustment of the pressing positions of the conical block pressing plates.
6. The method for adjusting the axial attitude adaptive array composite pipe clamping device according to any one of claims 1 to 5, is characterized by comprising the following steps of:
step 1, placing an array composite pipe blank to be processed on a supporting surface of a fixture body, and simultaneously ensuring that all outer mandrels enter into corresponding composite pipes;
step 2, limiting the relative rotation of the inner mandrel and the outer mandrel through a cylindrical pin;
step 3, sleeving a lower conical block, a clamping jaw, an upper conical block and a conical block pressing plate into the mandrel from the upper part of the composite pipe, screwing a threaded hole in the center of the conical block pressing plate into a thread at the upper end of the outer mandrel, and rotating the conical block pressing plate by using a special wrench to expand the clamping jaw and tighten the inner surface of the composite pipe;
step 4, detaching the mandrel pressing plate, and adjusting the length and the inclination angle of the mandrel according to the position of the clamped composite pipe without clamping stress;
and 5, connecting the inner mandrel and the outer mandrel together through a mandrel pressing plate and a mandrel fixing screw, limiting the inclination angle and the mandrel length of the clamping device, and completing clamping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211402927.9A CN115609035A (en) | 2022-11-09 | 2022-11-09 | Axial attitude self-adaptive array composite pipe clamping device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211402927.9A CN115609035A (en) | 2022-11-09 | 2022-11-09 | Axial attitude self-adaptive array composite pipe clamping device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115609035A true CN115609035A (en) | 2023-01-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211402927.9A Pending CN115609035A (en) | 2022-11-09 | 2022-11-09 | Axial attitude self-adaptive array composite pipe clamping device and method |
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| Country | Link |
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| CN (1) | CN115609035A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0985477A1 (en) * | 1998-09-10 | 2000-03-15 | Christ-Noss, Marianne | Chuck |
| US20040187658A1 (en) * | 2003-03-27 | 2004-09-30 | James Moruzzi | End prep tool and tool centering and mounting system for use therewith |
| WO2005099946A2 (en) * | 2004-04-19 | 2005-10-27 | Allan Hay | Clamping device for hollow parts |
| CA2596155A1 (en) * | 2006-08-04 | 2008-02-04 | Ingersoll Machine Tools, Inc. | Clamping apparatus and method |
| CN102601405A (en) * | 2012-03-30 | 2012-07-25 | 苏州唐峰电器有限公司 | Automatic centering and clamping device |
| CN202804227U (en) * | 2012-10-18 | 2013-03-20 | 宁波勋辉电器有限公司 | Elastic mandrel positioning fixture of turning thin-walled part |
| CN104308211A (en) * | 2014-10-11 | 2015-01-28 | 蒋飞雪 | Double-disc automatic centering sleeve lathe clamp |
| CN104625237A (en) * | 2014-12-15 | 2015-05-20 | 中船动力有限公司 | Manual two-way chamfering tool |
| CN205614366U (en) * | 2016-02-26 | 2016-10-05 | 龙工（上海）精工液压有限公司 | Plunger pump pump body merry go round machine anchor clamps |
| CN207508621U (en) * | 2017-11-06 | 2018-06-19 | 成都飞机工业（集团）有限责任公司 | Cylinder top pressing head device |
| CN207756940U (en) * | 2017-07-27 | 2018-08-24 | 麦克奥迪（厦门）电气股份有限公司 | A kind of thin-wall barrel turning clamp |
| EP3623088A1 (en) * | 2018-09-17 | 2020-03-18 | Dieter Reis | Device for clamping workpieces |
| CN113182894A (en) * | 2021-04-02 | 2021-07-30 | 大连理工大学 | Clamping method for double-sided processing of pipe clamping layer structure of array composite material |
-
2022
- 2022-11-09 CN CN202211402927.9A patent/CN115609035A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0985477A1 (en) * | 1998-09-10 | 2000-03-15 | Christ-Noss, Marianne | Chuck |
| US20040187658A1 (en) * | 2003-03-27 | 2004-09-30 | James Moruzzi | End prep tool and tool centering and mounting system for use therewith |
| WO2005099946A2 (en) * | 2004-04-19 | 2005-10-27 | Allan Hay | Clamping device for hollow parts |
| CA2596155A1 (en) * | 2006-08-04 | 2008-02-04 | Ingersoll Machine Tools, Inc. | Clamping apparatus and method |
| CN102601405A (en) * | 2012-03-30 | 2012-07-25 | 苏州唐峰电器有限公司 | Automatic centering and clamping device |
| CN202804227U (en) * | 2012-10-18 | 2013-03-20 | 宁波勋辉电器有限公司 | Elastic mandrel positioning fixture of turning thin-walled part |
| CN104308211A (en) * | 2014-10-11 | 2015-01-28 | 蒋飞雪 | Double-disc automatic centering sleeve lathe clamp |
| CN104625237A (en) * | 2014-12-15 | 2015-05-20 | 中船动力有限公司 | Manual two-way chamfering tool |
| CN205614366U (en) * | 2016-02-26 | 2016-10-05 | 龙工（上海）精工液压有限公司 | Plunger pump pump body merry go round machine anchor clamps |
| CN207756940U (en) * | 2017-07-27 | 2018-08-24 | 麦克奥迪（厦门）电气股份有限公司 | A kind of thin-wall barrel turning clamp |
| CN207508621U (en) * | 2017-11-06 | 2018-06-19 | 成都飞机工业（集团）有限责任公司 | Cylinder top pressing head device |
| EP3623088A1 (en) * | 2018-09-17 | 2020-03-18 | Dieter Reis | Device for clamping workpieces |
| CN113182894A (en) * | 2021-04-02 | 2021-07-30 | 大连理工大学 | Clamping method for double-sided processing of pipe clamping layer structure of array composite material |
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