CN210616243U - Flexible gel grinding wheel of dot matrix array - Google Patents
Flexible gel grinding wheel of dot matrix array Download PDFInfo
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- CN210616243U CN210616243U CN201921122239.0U CN201921122239U CN210616243U CN 210616243 U CN210616243 U CN 210616243U CN 201921122239 U CN201921122239 U CN 201921122239U CN 210616243 U CN210616243 U CN 210616243U
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Abstract
The lattice array flexible gel grinding wheel comprises a flexible grinding wheel head, a grinding wheel body and a current collection slip ring which are coaxially connected in sequence; the elastic mantle of the flexible grinding wheel head is hermetically sleeved with the front section of the grinding wheel body, the hemispherical supporting body of the cylindrical piston pull rod is pressed against the inner wall of the elastic mantle, the polishing cloth is fixed on the outer layer of the elastic mantle through a hoop, and the abrasive grain layer is adhered to the polishing cloth through an adhesive; an inner slip ring and an outer slip ring of the current collection slip ring are connected in a relatively rotatable manner, one end of the inner slip ring is connected with external equipment, and the other end of the inner slip ring is connected with a grinding wheel body; the gel unit array in the grinding wheel shell of the grinding wheel body is arranged into a dot matrix array, the gel unit is arranged in the axial cylindrical hole shell, and the bottom end of the grinding wheel body is connected with the current collection slip ring; an axial through hole for accommodating the cylindrical piston pull rod is formed in the grinding wheel body; the upper end of the gel unit is provided with a cylindrical piston pull rod, and the gel unit after being electrified drives the cylindrical piston pull rod, so that the elastic covering film is subjected to morphological change, and the surface of a complex workpiece is polished.
Description
Technical Field
The utility model relates to a flexible gel emery wheel of dot matrix array for processing complicated surface.
Background
The complex parts are widely applied in the high-end manufacturing field, such as automobile parts, space shuttle engines, aviation aircraft blades and the like, and along with the improvement of science and technology, the requirements on the stability and safety of the whole equipment are improved, and the requirements on the surface quality of the parts are higher and higher. Therefore, the polishing device has important significance for ultra-precise polishing of workpieces. The existing traditional processing method is difficult to apply and has poor self-adaption to the surface of a part, so that the problems of incomplete polishing and low polished surface quality are caused. With the increasing requirements for the surface quality and the processing efficiency of complex workpieces, a polishing module which can be used for various polishing automation devices and can adapt to parts with free-form surface complex characteristics is urgently needed. Therefore, the flexible polishing module which can be used for processing the complex surface and can actively profile the complex surface is designed, so that the polishing equipment is especially necessary for realizing the polishing work of the complex workpiece with high efficiency and high precision.
Disclosure of Invention
The utility model aims to solve present complicated part, especially to the part polishing inefficiency that has various complicated characteristics, difficult processing, not thorough problem, provided a flexible gel emery wheel of dot matrix array for complicated workpiece surface machining, can realize the initiative profile modeling to the work piece machined surface, cooperation automatic processing equipment accomplishes high-efficient, high-quality polishing work.
The utility model relates to a dot matrix array flexible gel grinding wheel for processing complex parts, which comprises a flexible grinding wheel head, a grinding wheel body and a current collecting slip ring which are coaxially connected in sequence, wherein the flexible grinding wheel head, the grinding wheel body and the current collecting slip ring are all revolved bodies;
the flexible grinding wheel head is connected with the grinding wheel body by clamping the polishing cloth through a clamp, and comprises an elastic sleeve film, the polishing cloth and an abrasive layer.
The interior of the grinding wheel body is used for bearing the gel unit array and the cylindrical piston pull rod, the processing end is provided with a flexible grinding wheel head, and the bottom end is fixedly connected with the current collecting slip ring.
And one end of the current collection slip ring is fixedly connected with the automation equipment, and the other end of the current collection slip ring is fixedly connected with the grinding wheel body and synchronously rotates along with the flexible grinding wheel so as to realize the axial shortening of the gel unit through an internal lead and an external power supply and a control module of the lead, thereby realizing the active profiling polishing of the flexible grinding wheel head.
The flexible grinding wheel head comprises an elastic sleeve film, polishing cloth, a hoop and an abrasive layer. When the polishing machine is used for polishing, the elastic sleeve film is sleeved with the front section of the grinding wheel body in a sealing mode, so that the hemispherical surface supporting body of the cylindrical piston pull rod just props against the inner wall of the cylindrical piston pull rod, the polishing cloth is fixed on the outer layer of the elastic sleeve film through the clamp, and the abrasive grain layer is adhered to the polishing cloth through the adhesive.
The collector slip ring comprises an inner slip ring and an outer slip ring, the inner slip ring and the outer slip ring are connected in a relatively rotating mode, one end of the inner slip ring is provided with a consolidation device connected with a rotating portion of the automation equipment, the other end of the inner slip ring is connected with a grinding wheel body, and the outer slip ring is connected with a rack of the automation equipment. When the polishing machine is used for polishing, the inner sliding ring is fixedly connected to the rotating part of the automatic equipment through the consolidation device, and the other end of the inner sliding ring is connected with the grinding wheel body, so that synchronous rotation of the inner sliding ring, the grinding wheel body and the grinding wheel body is realized. The outer slip ring remains relatively stationary and is fixedly connected with the automatic equipment rack. The main effect of current collection sliding ring is feasible the utility model discloses one section flexible emery wheel of following of required wire is rotatory, and another section then remains static, solves the utility model discloses a switch on difficult problem.
The grinding wheel body comprises a grinding wheel shell, a cylindrical piston pull rod and a gel unit array are axially arranged in the grinding wheel shell, the gel unit array is in a dot matrix array mode, gel units are arranged in an axial cylindrical hole shell, and the bottom end of the grinding wheel body is connected with a current collection slip ring. The interior of the grinding wheel body is provided with an axial through hole for accommodating a cylindrical piston pull rod. The upper end of the gel unit is provided with a cylindrical piston pull rod, the gel unit after being electrified drives the cylindrical piston pull rod, and the pulled piston pull rod enables the elastic sleeve film to be changed in shape, so that the surface of a complex workpiece can be polished.
The cylindrical piston pull rod is arranged in the axial through hole, a hemispherical support body is arranged at the top of the cylindrical piston pull rod, the cylindrical piston pull rods connected with the gel units are different in axial height, the pull rod at the circle center position is longest in design, and the hemispherical support body is fixedly connected to the inner wall of the elastic sleeve membrane in a non-working state.
And a first lead wire connected with the external control module and the power supply is arranged on the gel unit, and the first lead wire penetrates through the axial cylindrical hole shell and the grinding wheel shell and then penetrates through the outer sliding ring from the outside of the grinding wheel shell.
The gel unit is an intelligent driver which is induced by electrostatic attraction between positive electrons of an anode and negative electrons in the gel through an applied electrode to cause deformation of a gel matrix. The upper end of the gel unit is provided with a cylindrical piston pull rod, the gel unit after being electrified drives the cylindrical piston pull rod, and the movable cylindrical piston pull rod enables the elastic sleeve film to be changed in shape, so that the surface of a complex workpiece can be polished. The gel unit comprises a plurality of layers of transparent elastic PVC gel films, metal electrodes are arranged between the PVC gel films, and each metal electrode comprises an anode plate and a cathode plate. By controlling the input voltage, the gel unit can be shortened in the axial direction, and the shortening amount is controlled by the electrified voltage.
The utility model discloses an integral operation process: the utility model discloses generally install at the automation equipment end that is used for complicated work piece polishing work, when carrying out the part processing, according to the characteristic of the part of will processing, through the voltage power of adjusting every gel unit, realize that the axial of different gel units shortens to the deformation of adjustment elasticity mantle, and then adjustment flexible grinding wheel head and the contact curvature by machined surface improve the adaptability of abrasive grain layer to complicated work piece, make polishing work more stable and high-efficient.
The beneficial effects of the utility model reside in that: the utility model discloses can be used for complicated workpiece surface to carry out the automation equipment field of polishing, through current collection sliding ring adaptation to automation equipment end, through the voltage power of adjusting external control module, change the polishing form of flexible grinding wheel head, can improve the adaptability of abrasive grain layer to complicated part, and then realize carrying out high-efficient polishing to the work piece of different curved surfaces.
The utility model discloses an novelty lies in:
1) the active control of the grinding wheel machining profile is realized through the cooperative control of the structural design of the gel unit and the deformation of the distribution array, so that the requirement of the complex machining space differentiation of the workpiece is met;
2) in the industrial electricity utilization range, the real-time regulation and control of the outline of the gel grinding wheel can be realized through the control of the output voltage, the method is simple, and the response is sensitive;
3) the abrasive particle group is fixedly connected on the surface layer of the grinding wheel through the adhesive, and under the support of the gel unit array, the material removing effect under the structured shear expansion state is realized, so that the abrasive particle group can be matched with the grinding wheel to realize flexible contact on one hand, and on the other hand, the cutting force can be improved compared with free abrasive particles.
Drawings
Fig. 1 is a schematic diagram of the present invention.
Fig. 2 is an internal structure view of the present invention.
Fig. 3 is an axial cross-sectional view of the present invention.
Fig. 4a to 4b are schematic diagrams illustrating the deformation of the gel unit according to the present invention, wherein fig. 4a is a dc long off state, and fig. 4b is a dc field on state.
Fig. 5 a-5 b are schematic diagrams of the gel arrangement of the present invention, wherein fig. 5a is a dc long closed state, and fig. 5b is a dc field open state.
Fig. 6a to 6b are schematic views of the processing principle of the present invention, and fig. 6a and 6b show different processing contour lines.
Labeled as: the grinding wheel comprises a grinding wheel body 1, a grinding wheel shell 10, a first through hole 11, a first lead 12, an axial through hole 13, a cylindrical piston pull rod 14, a hemispherical support body 15, a first threaded hole 16, a second through hole 17, an axial cylindrical hole shell 18 and a gel unit 19;
the collector slip ring 2, a second lead wire 21, a second threaded hole 22, a fixing device 23, an outer slip ring 24 and an inner slip ring 25;
the flexible grinding wheel head 3, the hoop 31, the elastic mantle 32, the polishing cloth 33 and the abrasive layer 34;
Detailed Description
The present invention will be further explained with reference to the accompanying drawings
With reference to the accompanying drawings:
the working end of the grinding wheel body 1 is provided with a flexible grinding wheel head 3, and an internal cylindrical piston pull rod 14 is used for driving the flexible grinding wheel head 3 to deform along the axial direction; the bottom end of the first conducting wire is fixedly connected with a collector slip ring 2 for realizing the synchronous rotation of the first conducting wire 12. The grinding wheel body 1 further comprises a grinding wheel shell 10, a cylindrical piston pull rod 14 and a gel unit array, a first threaded hole 16 fixedly connected with the current collecting slip ring 2 is formed in the bottom end of the grinding wheel body 1, and a first through hole 11 is formed in the middle of the grinding wheel shell 10. An axial through hole 13 for accommodating a cylindrical piston pull rod 14 is formed in the grinding wheel body 1.
The grinding wheel shell 10 mainly plays a role in protecting an internal structure, supporting and the like.
The gel unit array comprises a plurality of axial cylindrical hole shells 18 axially arranged in the grinding wheel shell 10, and a gel unit 19 is arranged in each axial cylindrical hole shell 18;
the gel unit 19 is an intelligent actuator that induces deformation of the gel matrix by applying electrodes induced by electrostatic attraction between the positive anode electrons and the negative electrons in the gel. The upper end of the gel unit 19 is provided with the cylindrical piston pull rod 14, the electrified gel unit 19 drives the cylindrical piston pull rod 14, and the movable cylindrical piston pull rod 14 enables the elastic sleeve film 32 to generate form change, so that the surface of a complex workpiece can be polished. The gel unit 19 comprises a plurality of layers of transparent elastic PVC gel films 191, metal electrodes are arranged between the PVC gel films 191, and the metal electrodes comprise an anode plate 192 and a cathode plate 193.
The PVC gel film 191 is made of polyvinyl chloride (PVC) (Poly Vinyl chloride) gel (the polymerization degree is 3200), and the plasticizer is made of DBA (dibutyl adipate). Mixing PVC powder with DBA at a certain ratio (weight ratio of 1:4), and mixing with tetrahydrofuran-Tetrahydrofuran (THF) solution, and co-injecting the above mixture into a culture dish, and evaporating THF at room temperature to form a light flexible transparent elastic PVC gel film. The PVC gel film 191 is an electroactive polymer, and electrodes are applied to two sides of the electroactive polymer, so that the PVC gel can cause the deformation of a matrix caused by negative electrons in an anode and nearby gel under the induction of Maxwell acting force. Electrodes are applied to two sides of the gel unit, and the gel unit can have axial shortening amount by controlling the input voltage of the electrodes, wherein the shortening amount is controlled by the strength of the electrified voltage. Based on the above characteristics of the PVC gel, in order to provide the gel with more ideal mechanical effects, the cathode plate 193 may be designed in the inner layer of the gel film 191, and the anode plate 192 may be designed in the upper and lower layers of the gel film 191, and arranged in multiple layers. The anode plate 192 and the cathode plate 193 adopt flexible conductive electrodes, such as graphene film electrodes, metal film electrodes and the like, and the thickness is several micrometers to hundreds of micrometers.
The collector slip ring 2 is a modular product, can be used in any electromechanical system which requires continuous rotation and needs to transmit power and signals from a fixed position to a rotating position, can simplify the system structure and avoid the sprain of a lead in the rotation process. The slip ring 2 comprises an inner slip ring 25 and an outer slip ring 24. When polishing, one end of the inner slip ring 25 is fixedly connected to the rotating part of the automatic equipment through the consolidation device 23, and the other end is connected with the flexible grinding wheel body 1 through the first threaded hole 16, so that synchronous rotation of the inner slip ring, the rotating part and the flexible grinding wheel body is realized. The outer slip ring remains relatively stationary and is fixedly connected with the automatic equipment rack. The main effect of current collection sliding ring is feasible the utility model discloses one section flexible emery wheel of following of required wire is rotatory, and another section then remains static, solves the utility model discloses a switch on difficult problem.
The gel unit 16 is provided with a first lead 12 for connecting an external control module and a power supply, and the first lead 12 passes through a second through hole 17 on the axial cylindrical hole shell 18, a first through hole 11 on the grinding wheel shell 10 and then passes through a second threaded hole 22 on an outer sliding ring 24 from the outside of the grinding wheel shell 10. The portion of the first wire 12 that passes behind the outer slip ring 24 is referred to as the second wire 21.
The flexible grinding wheel head 3 comprises an elastic sleeve film 32, a flexible polishing cloth 33, an abrasive layer 34 and a clamp 31. When the elastic sleeve film 32 is pulled by the cylindrical piston pull rod 14, the elastic sleeve film deforms, so that the abrasive particle layer 34 is actively attached to the workpiece processing surface, and efficient automatic polishing work can be completed through fine adjustment.
The elastic covering film 32 is mounted on the grinding wheel body 1 through a clamp 31 and ensures sealing and is fixedly connected with the hemispherical supporting body 15 on the cylindrical piston pull rod 14.
One side of the polishing cloth is attached to the elastic covering film and fixed, changes along with the deformation of the elastic covering film, and the other side is solidified with the abrasive particle layer 34 through the adhesive.
The abrasive grain layer 34 is fixed to the polishing cloth 33 by an adhesive.
The axes of the flexible grinding wheel head 3, the grinding wheel body 1 and the collecting ring 2 are superposed.
The axial direction of the utility model refers to the axis direction of the flexible grinding wheel head 3, the grinding wheel body 1 and the collecting ring 2.
The utility model discloses the working process does:
before the polishing work is started, the hemispherical support 15 is fixedly connected with the elastic covering film. When polishing work is carried out, track simulation is carried out on the surface of a workpiece to be processed in advance to obtain the most suitable polishing form of the needed grinding wheel, the input voltage of the gel unit 19 is adjusted by adjusting the external control module, the gel units 19 at different positions of the gel unit array have corresponding shortening amounts, the cylindrical piston pull rods 14 at different positions have corresponding displacement along the axial direction due to the deformation of the gel units, the elastic sleeve films 32 are elastically deformed by transferring the gel units to the hemispherical surface supporting body 15, the form of the flexible grinding wheel head 1 is changed, the grinding wheel layer 34 can be better attached to the surface to be processed, and efficient polishing work is realized.
The embodiments described in this specification are merely illustrative of implementations of the inventive concepts, and the scope of the invention should not be considered limited to the specific forms set forth in the embodiments, but rather the scope of the invention includes equivalent technical means that can be conceived by those skilled in the art based on the inventive concepts.
Claims (3)
1. The flexible gel emery wheel of dot matrix type array, its characterized in that: the device comprises a flexible grinding wheel head, a grinding wheel body and a current collecting slip ring which are coaxially connected in sequence, wherein the flexible grinding wheel head, the grinding wheel body and the current collecting slip ring are all revolved bodies;
the flexible grinding wheel head comprises an elastic sleeve film, polishing cloth, a hoop and an abrasive layer; the elastic mantle is hermetically sleeved with the front section of the grinding wheel body, a hemispherical support body of the cylindrical piston pull rod props against the inner wall of the elastic mantle, the polishing cloth is fixed on the outer layer of the elastic mantle through a hoop, and the abrasive grain layer is adhered to the polishing cloth through an adhesive;
the collector slip ring comprises an inner slip ring and an outer slip ring, the inner slip ring and the outer slip ring are connected in a relatively rotating mode, one end of the inner slip ring is provided with a consolidation device connected with a rotating part of the automation equipment, the other end of the inner slip ring is connected with a grinding wheel body, and the outer slip ring is connected with a rack of the automation equipment;
the grinding wheel body comprises a grinding wheel shell, a cylindrical piston pull rod and a gel unit array which are axially arranged are arranged in the grinding wheel shell, the gel unit array is arranged into a dot matrix array, gel units are arranged in an axial cylindrical hole shell, and the bottom end of the grinding wheel body is connected with a current collection slip ring; an axial through hole for accommodating the cylindrical piston pull rod is formed in the grinding wheel body; the upper end of the gel unit is provided with a cylindrical piston pull rod, and the gel unit after being electrified drives the cylindrical piston pull rod to enable the elastic covering film to generate morphological change, so that the surface of a complex workpiece is polished;
the cylindrical piston pull rod is arranged in the axial through hole, a hemispherical support body is arranged at the top of the cylindrical piston pull rod, the cylindrical piston pull rods connected with the gel units are different in axial height, and the pull rod at the circle center is longest in design;
and a first lead wire connected with the external control module and the power supply is arranged on the gel unit, and the first lead wire penetrates through the axial cylindrical hole shell and the grinding wheel shell and then penetrates through the outer sliding ring from the outside of the grinding wheel shell.
2. The lattice array flexible gel grinding wheel as claimed in claim 1, wherein: one end of the inner sliding ring is fixedly connected to a rotating part of the automatic equipment through a fixing device, and the other end of the inner sliding ring is connected with the flexible grinding wheel body through a first threaded hole.
3. The lattice array flexible gel grinding wheel as claimed in claim 1, wherein: the gel unit comprises a plurality of layers of transparent elastic PVC gel films, metal electrodes are arranged between the PVC gel films, and each metal electrode comprises an anode plate and a cathode plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921122239.0U CN210616243U (en) | 2019-07-17 | 2019-07-17 | Flexible gel grinding wheel of dot matrix array |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921122239.0U CN210616243U (en) | 2019-07-17 | 2019-07-17 | Flexible gel grinding wheel of dot matrix array |
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| CN210616243U true CN210616243U (en) | 2020-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921122239.0U Active CN210616243U (en) | 2019-07-17 | 2019-07-17 | Flexible gel grinding wheel of dot matrix array |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110434769A (en) * | 2019-07-17 | 2019-11-12 | 浙江工业大学 | A kind of dot matrix type array flexible gel grinding wheel |
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2019
- 2019-07-17 CN CN201921122239.0U patent/CN210616243U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110434769A (en) * | 2019-07-17 | 2019-11-12 | 浙江工业大学 | A kind of dot matrix type array flexible gel grinding wheel |
| CN110434769B (en) * | 2019-07-17 | 2024-05-03 | 浙江工业大学 | Dot matrix type array flexible gel grinding wheel |
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