CN110815041A - Turbulence-driven self-revolution clamp for abrasive flow surface finishing - Google Patents
Turbulence-driven self-revolution clamp for abrasive flow surface finishing Download PDFInfo
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- CN110815041A CN110815041A CN201911121954.7A CN201911121954A CN110815041A CN 110815041 A CN110815041 A CN 110815041A CN 201911121954 A CN201911121954 A CN 201911121954A CN 110815041 A CN110815041 A CN 110815041A
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- flange
- clamping
- revolving
- surface finishing
- turbulence
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
Abstract
The invention provides a turbulence-driven self-revolution clamp for abrasive particle flow surface finishing, which comprises: a pair of flange clamping plates which are oppositely arranged in parallel are defined as a first flange clamping plate and a second flange clamping plate; a revolution main shaft on the two flange splints; the integrated fan blades are arranged on the two flange clamping plates, each integrated fan blade is provided with a fan blade part and a clamping part, each clamping part penetrates through the corresponding flange clamping plate, and a space between the clamping parts on the two flange clamping plates forms a clamping space for a workpiece; and the tensioning mechanisms are arranged on the corresponding positions of the first flange clamping plate and the second flange clamping plate and are used for driving the first flange clamping plate and the second flange clamping plate to move relative to each other through the tensioning mechanisms so as to clamp the workpiece when the workpiece is placed between the clamping parts. The invention drives the fan blades on the two flange plates to rotate by the annular disturbance of water flow and the rotation of the revolution main shaft, thereby achieving the function of clamping workpieces and realizing no energy supply and rotation.
Description
Technical Field
The invention relates to the technical field of abrasive particle flow surface finishing, in particular to a turbulence driving self-revolution clamp for abrasive particle flow surface finishing.
Background
Abrasive fluid polishing is a novel polishing technology for realizing workpiece surface grinding by mixing a liquid carrier and solid abrasive particles to prepare uniform solid-liquid mixed fluid. The workpiece needs to be fixed through a tool clamp in the polishing process, and the clamping mode of the clamp determines the processing priority and the effective processing area size of different positions of the workpiece.
The choice of the jig is extremely important in order to avoid the case of non-uniformity of the surface treatment of the workpiece. There are two types of clamps commonly used for abrasive flow polishing: one is a simple clamp fixed by clamping threads, and the polishing uniformity is influenced by the adjustability singly; the other type of multifunctional clamp with a complex structure and high adjustability has short service life and insufficient strength when used in an abrasive particle flow system containing solid particles and a severe working environment.
Disclosure of Invention
The present invention aims to provide a turbulence-driven self-revolving jig for abrasive flow surface finishing, comprising:
a pair of flange clamping plates which are oppositely arranged in parallel are defined as a first flange clamping plate and a second flange clamping plate;
a revolution main shaft which is arranged at one end of the two flange clamping plates and fixed with the two flange clamping plates;
the integrated fan blades are respectively arranged at the other ends of the two flange clamping plates, each integrated fan blade is provided with a fan blade part and a clamping part connected to the fan blade part, each clamping part penetrates through the corresponding flange clamping plate, and a space between the clamping parts on the two flange clamping plates forms a clamping space for a workpiece;
and the tensioning mechanisms are arranged on the corresponding positions of the first flange clamping plate and the second flange clamping plate and are used for driving the first flange clamping plate and the second flange clamping plate to move relative to each other through the tensioning mechanisms so as to clamp the workpiece when the workpiece is placed between the clamping parts.
Preferably, one end of the flange clamping plate is provided with a threaded hole and a screwed nut, and the flange clamping plate and the revolution spindle are screwed and fixed through the screwed nut.
Preferably, the tensioning mechanism is arranged at the middle position of the first flange clamping plate and the second flange clamping plate in the longitudinal direction, and comprises a rotatable tensioning screw rod penetrating through the two flange clamping plates and a retaining nut arranged at the head of the tensioning screw rod.
Preferably, the cross-sectional shape of the flange clamping plate is hexagonal.
Preferably, the flange plate has a bearing, and the clamping portion has a fixing portion connected to the fan blade portion, penetrating the bearing and extending therefrom.
Preferably, the clamping portion is provided with a rubber plug at the extended portion.
Preferably, the fixing part is provided with a boss with the outer diameter the same as that of the inner ring of the bearing, the boss props against the inner ring of the bearing, and the boss and the inner ring are in interference fit.
Preferably, the revolution main shaft is provided with a driving component for driving the revolution main shaft to rotate, so that when the revolution main shaft is driven to revolve, water flow is driven to drive the fan blade part, and the fan blade part revolves to push the bearing connected with the fan blade part to rotate, so that the workpiece fastened between the clamping parts realizes non-energy-supply self-adaptive revolution.
Preferably, the bearing is a waterproof bearing.
Preferably, the bearing is arranged in a counter bore of the flange plate.
Preferably, the pair of flange clamping plates, the integrated fan blades arranged on the two flange clamping plates and the tensioning mechanisms arranged at corresponding positions on the pair of flange clamping plates form a group of clamps, and at least two groups of clamps are arranged on the revolution spindle crosswise along the rotation direction.
By combining the technical scheme of the invention, the turbulence-driven self-revolution clamp for abrasive flow surface finishing of the invention has the advantages that through two symmetrical hexagonal flange plates, a flange hole at one end is fixed on the upper side surface of a stirring rod and is locked by a fastening screw, a bearing is fixed in a symmetrical counter bore, the bearing is sleeved with an integrated fan blade with fan blades and a rubber top, a processed workpiece is clamped by tensioning a lead screw between the two flange plates, and the fan blades on the two flange plates are driven to rotate by the annular disturbance of water flow and the rotation of a rotating shaft, so that the function of clamping the workpiece without energy supply and rotation is achieved, and the turbulence-driven self-revolution clamp has the remarkable beneficial effects that:
1. by analyzing the characteristics of the processing environment and the fluid, the non-energy-supply rotation function is designed by using a simple structure, the high-low-speed non-energy-supply rotation of the workpiece is realized through different revolution rotating speeds, revolution radiuses and the like, the surface treatment uniformity is improved, and the surface roughness is reduced at a high speed;
2. the clamping area is small, the treatment area is maximized (the effective processing area of the workpiece can be maximized), and the influence of flow field deformation caused by the clamp on the processing effect of the workpiece is reduced;
3. the clamping flange plate adopts a hexagon shape, so that the resistance of the flange plate to turbulence is greatly reduced, and the revolution energy consumption is saved;
4. the structure is simple, the upper clamp and the lower clamp are completely the same, and only one part needs to be replaced when the part is damaged;
5. the installation and adjustment are convenient, the two parts of clamps are symmetrically installed without mutual influence, and the adjustability is greatly improved;
6. the volume is less, can use multiunit simultaneously, greatly increased its processing quantity, the increase of production.
It should be understood that all combinations of the foregoing concepts and additional concepts described in greater detail below can be considered as part of the inventive subject matter of this disclosure unless such concepts are mutually inconsistent. In addition, all combinations of claimed subject matter are considered a part of the presently disclosed subject matter.
The foregoing and other aspects, embodiments and features of the present teachings can be more fully understood from the following description taken in conjunction with the accompanying drawings. Additional aspects of the present invention, such as features and/or advantages of exemplary embodiments, will be apparent from the description which follows, or may be learned by practice of specific embodiments in accordance with the teachings of the present invention.
Drawings
The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which:
fig. 1 is a schematic view of a turbulence-driven rotary jig for surface finishing of abrasive grain streams of the present invention, in which 1 set of jigs is provided on a rotary spindle.
Fig. 2 is a cross-sectional view of a flange clamp of the turbulence driven self-revolving jig for abrasive flow surface finishing of the embodiment of fig. 1.
Fig. 3 is a partially enlarged view of an integrated fan blade of the turbulence-driven self-revolving jig for abrasive flow surface finishing according to the embodiment of fig. 1.
Fig. 4 is a schematic view of turbulence driven rotary and orbital chucks for abrasive particle stream surface finishing according to the present invention, wherein multiple sets of chucks are provided on the orbital spindle.
Fig. 5 is a top view of the turbulence driven rotary orbital chuck for abrasive particle flow surface finishing of the embodiment of fig. 4.
Detailed Description
In order to better understand the technical content of the present invention, specific embodiments are described below with reference to the accompanying drawings.
In this disclosure, aspects of the present invention are described with reference to the accompanying drawings, in which a number of illustrative embodiments are shown. Embodiments of the present disclosure are not necessarily intended to include all aspects of the invention. It should be appreciated that the various concepts and embodiments described above, as well as those described in greater detail below, may be implemented in any of numerous ways, and that the concepts and embodiments disclosed herein are not limited to any embodiment. In addition, some aspects of the present disclosure may be used alone, or in any suitable combination with other aspects of the present disclosure.
Referring to fig. 1-3, the turbulence-driven self-revolving fixture for abrasive flow surface finishing according to the embodiment of the invention is used in an abrasive flow turbulence device, and is provided with a revolving rotating shaft and one or more groups of fixture mechanisms fixed with the revolving rotating shaft, each group comprises an upper flange clamping plate, a lower flange clamping plate and an integrated fan blade arranged on the flange clamping plates, the integrated fan blade is sleeved on a bearing in a counter bore of the flange clamping plate, the symmetrical ends of the bottom of the fan blade are sleeved with rubber top heads to form clamping of a workpiece, and then the clamping is connected, tensioned and fixed through a screw rod. Therefore, the water flow is driven to drive the fan blades through revolution of the revolution main shaft, the fan blades revolve to push the bearings connected with the fan blades to rotate, and therefore the workpieces fastened among the bearings realize non-energy-supply self-adaptive revolution.
The revolution clamp has the advantages of small clamping and shielding area, large effective treatment area, greatly reduced motion resistance due to the hexagonal flange clamping plate structure, capability of greatly improving the surface treatment uniformity of a workpiece, simple structure, convenience in installation and adjustment, small size, capability of being used by multiple groups at the same time, high efficiency and the like.
Fig. 1 exemplarily shows a structure of a turbulence-driven rotation and revolution jig for abrasive flow surface finishing according to an exemplary embodiment of the present invention, which includes a pair of flange plates 2, a first flange plate 2A and a second flange plate 2B, which are disposed in parallel with each other, and preferably, a flange plate having a hexagonal cross-sectional shape, to reduce resistance of fluid when the flange plates revolve around a revolution main shaft.
And a revolution main shaft 9 which is arranged at one end of the two flange clamping plates and fixed with the two flange clamping plates can revolve under the driving of the driving component. Preferably, one end of at least one flange clamping plate (2A, 2B) is provided with a threaded hole (not shown by a reference number, which is matched with the tightening nut 8) and the tightening nut 8 which can be screwed in, and the flange clamping plate is screwed and fixed with the revolution spindle by the tightening nut.
The integrated fan blade 1 is arranged at the other end of each of the two flange clamping plates and is provided with a fan blade part 1A and a clamping part 1B connected to the fan blade part, and each clamping part 1B penetrates through the corresponding flange clamping plate.
The space between the clamping parts 1B on the two flange clamping plates forms a clamping space for the workpiece.
And the tensioning mechanisms are arranged on the corresponding positions of the first flange clamping plate and the second flange clamping plate and are used for driving the first flange clamping plate and the second flange clamping plate to move relative to each other through the tensioning mechanisms so as to clamp the workpiece when the workpiece is placed between the clamping parts. For example, a screw movement mechanism is preferably employed in the present embodiment, including a tension screw 6 which passes through two flange plates and is rotatable, and a back stop nut 7 provided at the head of the tension screw. So, when the station presss from both sides between two clamping part 1B, realize through taut lead screw in the middle of, then both ends of taut lead screw adopt the stopping nut to fix.
Preferably, a tightening mechanism (e.g., a tightening screw) is provided at a position intermediate in the longitudinal direction of the first flange plate 2A and the second flange plate 2B.
Referring to fig. 1, each flange plate is provided with a counter bore, a bearing 5 is placed in the counter bore, and the clamping portion 1B has a fixing portion 1C connected to the blade portion, penetrates through the bearing, and extends out. And the part that the clamping part extends out is provided with rubber top 1D, and the work piece centre gripping is on rubber top, and the protection is processed the work piece and is not caused the damage by anchor clamps.
Preferably, as shown in fig. 1, the fixing portion 1C has a boss with an outer diameter equal to that of the inner ring of the bearing, the boss abuts against the inner ring of the bearing, and the boss and the inner ring are in interference fit, so that the clamping tightness is ensured. In fig. 1, reference numeral 3 denotes a workpiece.
Preferably, the revolution main shaft is provided with a driving component for driving the revolution main shaft to rotate, so that when the revolution main shaft is driven to revolve, water flow is driven to drive the fan blade part, and the fan blade part revolves to push the bearing connected with the fan blade part to rotate, so that the workpiece fastened between the clamping parts realizes non-energy-supply self-adaptive revolution.
Preferably, the driving component is a motor driving component, and the adjustable range of the rotating speed of the autorotation spindle is 10 r/min-1000 r/min.
Preferably, the bearing 5 is a waterproof bearing, is corrosion-resistant and wear-resistant, does not rust, and can prevent fine abrasive particles from entering to affect use.
By combining the technical scheme of the invention, the turbulence-driven self-revolution clamp for abrasive flow surface finishing of the invention has the advantages that the turbulence-driven self-revolution clamp is locked by the fastening screws fixed on the upper side surface of the stirring rod through the two symmetrical hexagonal flange plates and the flange hole at one end, the bearing is fixed in the symmetrical counter bores, the bearing is sleeved with the integrated fan blade with the fan blade and the rubber top, the processed workpiece is clamped by tensioning the screw rod between the two flange plates, and the fan blades on the two flange plates are driven to rotate through the annular disturbance of water flow and the rotation of the rotating shaft, thereby achieving the function of clamping the workpiece without energy supply and rotation,
preferably, in other embodiments, as shown in fig. 4 to 5, a pair of flange clamping plates, the integrated fan blades provided on the two flange clamping plates, and the tensioning mechanism provided at corresponding positions on the pair of flange clamping plates constitute one set of clamps, and at least two sets of clamps are arranged on the revolving main shaft 9 crosswise along the rotation direction, for example, 3 sets are exemplarily shown in fig. 2.
Referring to fig. 1, the embodiment of the present invention may further provide multiple sets of different clamps with different lengths (the length of the flange clamping plate is replaceable and adjustable) according to the processing size, number and effect of the workpiece, for example, the range of the clamps may be adjusted from 100mm to 300 mm. According to the processing requirement, the revolution speed can be controlled and adjusted, the revolution radius of high roughness is rapidly reduced, and the revolution radius of fine processing and low roughness is small.
The following is the process of performing test and workpiece surface finishing treatment by using the revolution fixture of the invention:
[ example 1 ]
Step 1: selecting a radius: length of 50 mm: 1 group of 100mm cylindrical 304 stainless steel workpieces with a measured surface roughness average of 10.55 μm and a mass of 1540 g;
step 2: clamping the workpiece in the step 1 on a rubber top of a self-revolving clamp for firm fixation, and ensuring that an upper clamping point and a lower clamping point are the central positions of the workpiece and the revolving radius is 100 mm;
and step 3: the rotation speed of the rotation main shaft is 100 r/min;
and 4, step 4: processing for 60 min;
and 5: drying the surface of the workpiece by using dry high-pressure air;
step 6: the surface average roughness was measured to be 1.24 μm, and the measured mass was 1525 g.
According to the processing example result, the surface roughness is obviously reduced, the quality loss is less and the over-polishing phenomenon is avoided under the conditions of low rotating speed and small revolution radius.
[ example 2 ]
Step 1: selecting a radius: length of 50 mm: 1 group of 100mm cylindrical 304 stainless steel workpieces, the measured surface average roughness being 30.22 μm and the mass being 1540 g;
step 2: clamping the workpiece in the step 1 on a rubber top of a self-revolving clamp for firm fixation, and ensuring that an upper clamping point and a lower clamping point are the central positions of the workpiece and the revolving radius is 300 mm;
and step 3: the rotation speed of the rotation main shaft is 1000 r/min;
and 4, step 4: processing for 30 min;
and 5: drying the surface of the workpiece by using dry high-pressure air;
step 6: the surface average roughness was measured to be 10.35 μm, and the mass was measured to be 1472 g.
According to the processing example result, the surface roughness is obviously reduced, the quality loss is large, the processing time is greatly reduced, and the over-polishing phenomenon is avoided under the conditions of high rotating speed and large revolution radius.
[ example 3 ]
step 2, clamping the workpiece in the step 1 on a rubber top of a self-revolving clamp for firm fixation, ensuring that an upper clamping point and a lower clamping point are taken as the central position of the workpiece as shown in figure 2, fixing a group of clamps at every 120 degrees by taking a revolving main shaft as the center, and setting the revolving radius to be ① 100mm, ② 200mm and ③ 300mm respectively;
and step 3: the rotation speed of the autorotation main shaft is 800 r/min;
and 4, step 4: processing for 30 min;
and 5: drying the surface of the workpiece by using dry high-pressure air;
With reference to fig. 2, it can be seen from the processing example results that the clamps can be used in multiple groups without affecting each other.
It is understood from the above three groups of examples that rough polishing is suitable at high rotation speed and large revolution radius; the polishing liquid is suitable for fine polishing at low rotating speed and small radius. The revolution speed is high, and the corresponding autorotation speed is also improved in adaptability; the revolution speed is low, the corresponding rotation speed is also reduced in adaptability, and the surface roughness requirements of different finishing work can be adjusted and controlled through high-speed reduction and adjustment.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention should be determined by the appended claims.
Claims (10)
1. A turbulence-driven self-revolving jig for surface finishing of abrasive flow, comprising:
a pair of flange clamping plates which are oppositely arranged in parallel are defined as a first flange clamping plate and a second flange clamping plate;
a revolution main shaft which is arranged at one end of the two flange clamping plates and fixed with the two flange clamping plates;
the integrated fan blades are respectively arranged at the other ends of the two flange clamping plates, each integrated fan blade is provided with a fan blade part and a clamping part connected to the fan blade part, each clamping part penetrates through the corresponding flange clamping plate, and a space between the clamping parts on the two flange clamping plates forms a clamping space for a workpiece;
and the tensioning mechanisms are arranged on the corresponding positions of the first flange clamping plate and the second flange clamping plate and are used for driving the first flange clamping plate and the second flange clamping plate to move relative to each other through the tensioning mechanisms so as to clamp the workpiece when the workpiece is placed between the clamping parts.
2. The turbulence driven self-revolving jig for abrasive flow surface finishing according to claim 1, wherein one end of the flange plate is provided with a threaded hole and a screw nut that can be screwed in, and the flange plate is screwed and fixed to the revolving main shaft by the screw nut.
3. The turbulence driven self-revolving jig for abrasive flow surface finishing according to claim 1, wherein the tightening mechanism is provided at an intermediate position in the longitudinal direction of the first flange plate and the second flange plate, and the tightening mechanism includes a tightening screw passing through both the flange plates and rotatable, and a retaining nut provided at the head of the tightening screw.
4. The turbulence driven self-revolving jig for abrasive flow surface finishing according to claim 1, wherein the cross-sectional shape of the flange plate is hexagonal.
5. The turbulence driven self-revolving clamp for abrasive particle flow surface finishing according to any one of claims 1 to 4, wherein the flange plate has a bearing, and the clamping portion has a fixing portion connected to the fan blade portion, passes through the bearing and extends out.
6. The turbulence driven rotation-revolution jig for abrasive flow surface finishing according to claim 5, wherein the grip portion is provided with a rubber plug at a portion from which the grip portion extends.
7. The turbulence driven self-revolving jig for abrasive flow surface finishing according to claim 5, wherein the fixing portion has a boss having an outer diameter equal to an outer diameter of an inner ring of the bearing, the boss abuts against the inner ring of the bearing, and the boss and the inner ring are in interference fit.
8. The turbulence driven self-revolving jig for abrasive particle flow surface finishing according to claim 5, wherein the revolving main shaft is provided with a driving component for driving the revolving main shaft to rotate, so that when the revolving main shaft is driven to revolve, the revolving main shaft drives the fan blade part by water flow, and the fan blade part revolves to push the bearing connected with the fan blade part to rotate, thereby realizing non-energy-supply self-adaptive revolution of the workpiece fastened between the clamping parts.
9. The turbulence driven self-revolving jig for abrasive flow surface finishing of claim 5, wherein the bearing is disposed in a counterbore of a flange clamp plate.
10. The turbulence driven rotary jig for abrasive flow surface finishing as claimed in claim 1, wherein said pair of flange plates, integral fan blades provided on both of the flange plates, and tension mechanisms provided at corresponding positions on the pair of flange plates constitute one set of jigs, and at least two sets of jigs are arranged on said rotary main shaft crosswise in the rotational direction.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911121954.7A CN110815041B (en) | 2019-11-15 | 2019-11-15 | Turbulent driving clamp for abrasive particle flow surface finishing |
| PCT/CN2020/101179 WO2021093353A1 (en) | 2019-11-15 | 2020-07-10 | Turbulence-driven self-revolution fixture for abrasive particle flow surface finishing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911121954.7A CN110815041B (en) | 2019-11-15 | 2019-11-15 | Turbulent driving clamp for abrasive particle flow surface finishing |
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| Publication Number | Publication Date |
|---|---|
| CN110815041A true CN110815041A (en) | 2020-02-21 |
| CN110815041B CN110815041B (en) | 2020-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911121954.7A Active CN110815041B (en) | 2019-11-15 | 2019-11-15 | Turbulent driving clamp for abrasive particle flow surface finishing |
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| CN (1) | CN110815041B (en) |
| WO (1) | WO2021093353A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112296714A (en) * | 2020-11-11 | 2021-02-02 | 许昌学院 | Novel clamp for machining parts of precision machine tool |
| WO2021093353A1 (en) * | 2019-11-15 | 2021-05-20 | 南京尚吉增材制造研究院有限公司 | Turbulence-driven self-revolution fixture for abrasive particle flow surface finishing |
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| CN110815041B (en) * | 2019-11-15 | 2020-07-21 | 南京尚吉增材制造研究院有限公司 | Turbulent driving clamp for abrasive particle flow surface finishing |
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- 2019-11-15 CN CN201911121954.7A patent/CN110815041B/en active Active
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- 2020-07-10 WO PCT/CN2020/101179 patent/WO2021093353A1/en active Application Filing
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| CN112296714A (en) * | 2020-11-11 | 2021-02-02 | 许昌学院 | Novel clamp for machining parts of precision machine tool |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021093353A1 (en) | 2021-05-20 |
| CN110815041B (en) | 2020-07-21 |
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