CN212240550U - Grinding device and system for high-precision pin holes - Google Patents
Grinding device and system for high-precision pin holes Download PDFInfo
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- CN212240550U CN212240550U CN202020908771.1U CN202020908771U CN212240550U CN 212240550 U CN212240550 U CN 212240550U CN 202020908771 U CN202020908771 U CN 202020908771U CN 212240550 U CN212240550 U CN 212240550U
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Abstract
The utility model discloses a grinding system for high-precision pin holes, which comprises a workpiece with high-precision pin holes and a grinding device for grinding the high-precision pin holes; the grinding device comprises a central shaft, a supporting assembly and a rotating wheel; the central shaft comprises a shaft core and a grinding sleeve fixedly sleeved on the shaft core; the supporting component comprises a first supporting component and a second supporting component, the first supporting component is the same as the second supporting component, and the first supporting component comprises: the bearing is arranged on the base through the telescopic rod; the first supporting component and the second supporting component are symmetrically arranged on two sides of the workpiece; the grinding sleeve is positioned in the high-precision pin hole; one end of the shaft core is inserted into a shaft hole of the bearing of the first supporting assembly, and the other end of the shaft core passes through a shaft hole in the bearing of the second supporting assembly and then is connected with the rotating wheel; the grinding device for the high-precision pin hole provided by the utility model has the advantages of simple structure, convenient use and accurate grinding; belongs to the technical field of grinding pin holes.
Description
Technical Field
The utility model relates to a grind the technical field of pinhole, concretely relates to grinder and system of high accuracy pinhole.
Background
In recent years, with the rapid development of manufacturing industry, the machining and manufacturing precision of parts and products is improved, especially the machining of high-precision pin holes on some large-scale parts. In the process of mass production of high-precision pin holes, the surface of part of the pin holes may have a bulge problem; in the using process, the pin shaft is assembled and disassembled, the surface of the pin hole is damaged and protruded, the pin shaft which is tightly matched with the pin shaft or in interference fit with the pin shaft cannot be assembled according to requirements due to the fact that the surface of the pin hole is protruded, and the pin hole needs to be ground at the moment. However, the index requirements such as the positioning, size, shape and surface roughness of the high-precision pin hole are high, and the secondary processing and repairing by using large-scale and high-precision machining equipment are inconvenient.
In order to solve the problem that the surface of a high-precision pin hole is damaged and protruded, a grinding tool is proposed, wherein the grinding tool is a two-step shaft, the first step shaft is quenched, and the grinding tool is repeatedly used for multiple times after quenching. In addition, a grinding device for grinding the damaged protrusion on the surface of the high-precision pin hole is not available in the prior art.
SUMMERY OF THE UTILITY MODEL
To the not enough that exists in the correlation technique, the utility model discloses the technical problem that will solve lies in: the grinding device and the grinding system for the high-precision pin hole are simple in structure, convenient to use and accurate in grinding.
In order to solve the technical problem, the utility model discloses a technical scheme does: the utility model provides a grinder of high accuracy pinhole for grind high accuracy pinhole on the work piece, its characterized in that: the grinding device comprises a central shaft, a supporting assembly and a rotating wheel; the central shaft comprises a shaft core and a grinding sleeve fixedly sleeved on the shaft core; the supporting component comprises a first supporting component and a second supporting component, the first supporting component is identical to the second supporting component in mechanism, and the first supporting component comprises: the bearing is arranged on the base through the telescopic rod; when the workpiece support device works, the first support assembly and the second support assembly are symmetrically arranged on two sides of the workpiece; the grinding sleeve is positioned in the high-precision pin hole, and the outer circumferential wall of the grinding sleeve is tightly attached to the inner wall of the high-precision pin hole; one end of the shaft core is inserted into the shaft hole of the bearing of the first supporting component, and the other end of the shaft core penetrates through the shaft hole in the bearing of the second supporting component and then is connected with the rotating wheel.
Preferably, at least two through holes are axially symmetrically arranged on the grinding sleeve.
Preferably, the telescopic rod comprises a first support rod, a vertical rod and a second support rod; the first supporting rod is fixedly arranged at the top of the base, the top of the first supporting rod is in threaded connection with the bottom of the vertical rod, the top of the vertical rod is in threaded connection with the bottom of the second supporting rod, and the upper end of the second supporting rod is fixedly connected with the outer wall of the bearing.
Preferably, a vertical internal thread is arranged inside the vertical rod, and the internal thread at the upper end of the inside of the vertical rod is opposite to the internal thread at the lower end of the inside of the vertical rod; the upper end of the outer wall of the first supporting rod is provided with external threads corresponding to the internal threads at the lower end of the interior of the vertical rod; and the upper end of the outer wall of the second supporting rod corresponds to the internal thread at the upper end of the inner part of the vertical rod and is provided with an external thread.
Preferably, the shaft core is connected with the rotating wheel through a quick joint.
The utility model also provides a grinding system of high accuracy pinhole, include: the grinding device is used for grinding the high-precision pin hole; the method is characterized in that: the grinding device comprises a central shaft, a supporting assembly and a rotating wheel; the central shaft comprises a shaft core and a grinding sleeve fixedly sleeved on the shaft core; the supporting component comprises a first supporting component and a second supporting component, the first supporting component is identical to the second supporting component in mechanism, and the first supporting component comprises: the bearing is arranged on the base through the telescopic rod; the first supporting assembly and the second supporting assembly are symmetrically arranged on two sides of the workpiece; the grinding sleeve is positioned in the high-precision pin hole, and the outer circumferential wall of the grinding sleeve is tightly attached to the inner wall of the high-precision pin hole; one end of the shaft core is inserted into the shaft hole of the bearing of the first supporting component, and the other end of the shaft core penetrates through the shaft hole in the bearing of the second supporting component and then is connected with the rotating wheel.
The utility model has the advantages of:
1. the grinding device in the utility model comprises a central shaft, a supporting component and a rotating wheel; the central shaft comprises a shaft core and a grinding sleeve fixedly sleeved on the shaft core; the supporting component comprises a first supporting component and a second supporting component, the first supporting component is identical to the second supporting component in mechanism, and the first supporting component comprises: the bearing is arranged on the base through the telescopic rod.
In the grinding process, firstly, fixing a workpiece to be ground with a high-precision pin hole in a hanging, supporting and other modes to ensure the stability of the high-precision pin hole in the grinding process, and then, completely and uniformly coating the inner surface of the high-precision pin hole by using a red lead powder blender; then symmetrically arranging the first supporting component and the second supporting component on two sides of the workpiece; the grinding sleeve is positioned in the high-precision pin hole, and the outer circumferential wall of the grinding sleeve is tightly attached to the inner wall of the high-precision pin hole; one end of the shaft core is inserted into the shaft hole of the bearing of the first supporting component, and the other end of the shaft core penetrates through the shaft hole in the bearing of the second supporting component and then is connected with the rotating wheel. Adjust first bracing piece and second bracing piece, make the base place on ground or other planes firmly, then rotate the runner and realize grinding.
After grinding, dismantle the runner from the axle core earlier, then dismantle two bearings from the axle core, take out the center pin from the high accuracy pinhole, observe the high accuracy pinhole internal surface red lead powder blender's the grinding condition and can make the judgement to the protruding condition of inside damage in high accuracy pinhole to avoid causing similar damage in production or use.
The utility model has the advantages of simple structure, the installation, dismantle conveniently, the in-process of installation only need pass the high accuracy pinhole with the central axis, then use supporting component to fix grinding device, install the runner and go after can accomplish the equipment. The rotating wheel, the supporting component and the central shaft are disassembled at one time in the disassembling process. The first supporting assembly and the second supporting assembly can enable the shaft core, the grinding sleeve, the bearing and the high-precision pin hole to be concentric, so that the grinding quality is ensured, the grinding accuracy is high, and the condition of wrong grinding or eccentric grinding cannot occur; the height of the supporting component can be adjusted through the telescopic rod so as to meet the grinding requirements of different pin holes; the rotating wheel drives the central shaft to rotate, so that the grinding sleeve on the central shaft can grind the high-precision pin hole, grinding is realized through the bearing in the grinding process, and the grinding resistance is small.
2. The utility model discloses in axial symmetry is provided with two at least through-holes on the grinding sleeve. The grinding sleeve is provided with the through hole, so that the weight of the grinding sleeve can be effectively reduced, the installation and the disassembly are convenient, and meanwhile, the influence of gravity on grinding is reduced, and the grinding accuracy is improved.
3. The utility model discloses a telescopic rod comprises a first support rod, a vertical rod and a second support rod; the first supporting rod is fixedly arranged at the top of the base, the top of the first supporting rod is in threaded connection with the bottom of the vertical rod, the top of the vertical rod is in threaded connection with the bottom of the second supporting rod, and the upper end of the second supporting rod is fixedly connected with the outer wall of the bearing. Through the cooperation use of first bracing piece, montant, second bracing piece, realize supporting component's altitude mixture control, the axle core the bearing grind concentric setting between sleeve and the high accuracy pinhole more stable, make and grind more accurate.
4. In the utility model, the inner part of the vertical rod is provided with vertical internal threads, and the internal threads at the upper end of the inner part of the vertical rod are opposite to the internal threads at the lower end of the inner part of the vertical rod; the upper end of the outer wall of the first supporting rod is provided with external threads corresponding to the internal threads at the lower end of the interior of the vertical rod; and the upper end of the outer wall of the second supporting rod corresponds to the internal thread at the upper end of the inner part of the vertical rod and is provided with an external thread. The internal thread opposite direction of the inside upper end of montant and inside lower extreme, after confirming the position of grinding, adjusting the length of telescopic link, can be more stable with the supporting component through the setting of opposite direction internal thread, the unstable problem that can not appear leading to because the runner rotates.
5. The utility model discloses in the axle core with connect through quick-operation joint between the runner. The quick connector is arranged, so that the rotating wheel can be conveniently installed and detached, and the grinding time can be effectively saved.
Drawings
Fig. 1 is an assembly view of a high precision pin hole grinding system according to the present invention;
fig. 2 is a schematic structural view of a central shaft of a high-precision pin hole grinding device provided by the present invention;
fig. 3 is a schematic structural view of a first supporting component of the high-precision pin hole grinding device provided by the present invention;
in the figure: 10 is a workpiece, 20 is a central shaft, 30 is a first support component, 40 is a second support component, 50 is a rotating wheel, 101 is a high-precision pin hole, 201 is a shaft core, 202 is a grinding sleeve, 203 is a through hole, 301 is a base, 302 is a telescopic rod, 303 is a bearing, 3021 is a first support rod, 3022 is a vertical rod, and 3023 is a second support rod.
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; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Next, the present invention will be described in detail with reference to the schematic drawings, and in the detailed description of the embodiments of the present invention, for convenience of illustration, the schematic drawings showing the device structure will not be enlarged partially according to the general scale, and the schematic drawings are only examples, and should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
An embodiment of the high-precision pin hole grinding apparatus is described in detail below with reference to the accompanying drawings.
A grinding device for a high-precision pin hole is used for grinding the high-precision pin hole 101 on a workpiece 10 and comprises a central shaft 20, a supporting assembly and a rotating wheel 50; the central shaft 20 comprises a shaft core 201 and a grinding sleeve 202 fixedly sleeved on the shaft core 201; the support assembly comprises a first support assembly 30 and a second support assembly 40, the first support assembly 30 is identical in structure to the second support assembly 40, and the first support assembly 30 comprises: the device comprises a base 301, a telescopic rod 302 and a bearing 303, wherein the bearing 303 is arranged on the base 301 through the telescopic rod 302; in operation, the first supporting component 30 and the second supporting component 40 are symmetrically arranged on two sides of the workpiece 10; the grinding sleeve 202 is positioned in the high-precision pin hole 101, and the outer circumferential wall of the grinding sleeve 202 is tightly attached to the inner wall of the high-precision pin hole 101; one end of the shaft core 201 is inserted into the shaft hole of the bearing 303 of the first support component 30, and the other end of the shaft core passes through the shaft hole of the bearing 303 of the second support component 40 and then is connected with the runner 50.
The grinding device in the utility model comprises a central shaft, a supporting component and a rotating wheel; the central shaft comprises a shaft core and a grinding sleeve fixedly sleeved on the shaft core; the supporting component comprises a first supporting component and a second supporting component, the first supporting component is identical to the second supporting component in mechanism, and the first supporting component comprises: the bearing is arranged on the base through the telescopic rod.
In the grinding process, firstly, fixing a workpiece to be ground with a high-precision pin hole in a hanging, supporting and other modes to ensure the stability of the high-precision pin hole in the grinding process, and then, completely and uniformly coating the inner surface of the high-precision pin hole by using a red lead powder blender; then symmetrically arranging the first supporting component and the second supporting component on two sides of the workpiece; the grinding sleeve is positioned in the high-precision pin hole, and the outer circumferential wall of the grinding sleeve is tightly attached to the inner wall of the high-precision pin hole; one end of the shaft core is inserted into the shaft hole of the bearing of the first supporting component, and the other end of the shaft core penetrates through the shaft hole in the bearing of the second supporting component and then is connected with the rotating wheel. Adjust first bracing piece and second bracing piece, make the base place on ground or other planes firmly, then rotate the runner and realize grinding.
After grinding, the rotating wheel is firstly disassembled from the shaft core, then the two bearings are disassembled from the shaft core, finally the central shaft is pulled out from the high-precision pin hole, and judgment can be made on the internal damage bulge condition of the high-precision pin hole by observing the grinding condition of the red lead powder blender on the inner surface of the high-precision pin hole, so that similar damage is avoided in the production or use process.
In the working process, the material of the grinding sleeve with matched strength and hardness can be selected according to the material of the high-precision pin hole to be ground; in the grinding process, the central shaft can rotate clockwise and anticlockwise alternately for grinding.
The utility model has the advantages of simple structure, the installation, dismantle conveniently, the in-process of installation only need pass the high accuracy pinhole with the central axis, then use supporting component to fix grinding device, install the runner and go after can accomplish the equipment. The rotating wheel, the supporting component and the central shaft are disassembled at one time in the disassembling process. The first supporting assembly and the second supporting assembly can enable the shaft core, the grinding sleeve, the bearing and the high-precision pin hole to be concentric, so that the grinding quality is ensured, the grinding accuracy is high, and the condition of wrong grinding or eccentric grinding cannot occur; the height of the supporting component can be adjusted through the telescopic rod so as to meet the grinding requirements of different pin holes; the rotating wheel drives the central shaft to rotate, so that the grinding sleeve on the central shaft can grind the high-precision pin hole, grinding is realized through the bearing in the grinding process, and the grinding resistance is small.
In particular, the bearing 303 is a sliding bearing.
Slide bearing is applicable to low-speed, lightly carry and maintains the mechanical rotation position of difficulty, the utility model discloses well adoption slide bearing can realize better grinding.
Specifically, the diameter of the grinding sleeve 202 is less than or equal to the diameter of the high-precision pin bore 101.
When grinding the high accuracy pinhole of different diameters, change grinding the sleeve, the axle core can not be changed, and the fixed cover of grinding sleeve after will changing is located on the axle core, and easy operation can satisfy the grinding demand of different pinholes. The grinding sleeve with the diameter smaller than the high-precision pin hole can be selected for pre-grinding in the grinding process, the rotating wheel is detached from the shaft core after the pre-grinding is finished, then the two bearings are detached from the shaft core, the central shaft is pulled out of the high-precision pin hole, the grinding condition of the red sage powder blender on the inner surface of the high-precision pin hole is observed, then the grinding sleeve with the larger diameter is replaced, and grinding is carried out until the diameter of the grinding sleeve is consistent with that of the high-precision pin hole; the grinding sleeve is replaced and the grinding paste is also replaced, and the larger the diameter of the grinding sleeve is, the finer the granularity of the grinding paste is.
Further, at least two through holes 203 are axially and symmetrically arranged on the grinding sleeve 202.
The grinding sleeve is provided with the through hole, so that the weight of the grinding sleeve can be effectively reduced, the installation and the disassembly are convenient, and meanwhile, the influence of gravity on grinding is reduced, and the grinding accuracy is improved.
Further, the telescopic rod 302 comprises a first support rod 3021, a vertical rod 3022 and a second support rod 3023; the first support rod 3021 is fixedly disposed on the top of the base 301, the top of the first support rod 3021 is connected to the bottom of the vertical rod 3022 through a thread, the top of the vertical rod 3022 is connected to the bottom of the second support rod 3023 through a thread, and the upper end of the second support rod 3023 is fixedly connected to the outer wall of the bearing 303.
Through the cooperation use of first bracing piece, montant, second bracing piece, realize supporting component's altitude mixture control, the axle core the bearing grind concentric setting between sleeve and the high accuracy pinhole more stable, make and grind more accurate.
Further, a vertical internal thread is arranged inside the vertical rod 3022, and the internal thread at the upper end inside the vertical rod 3022 is opposite to the internal thread at the lower end inside the vertical rod 3022; the upper end of the outer wall of the first support rod 3021 is provided with external threads corresponding to the internal threads at the lower end of the interior of the vertical rod 3022; the upper end of the outer wall of the second support rod 3023 is provided with external threads corresponding to the internal threads at the upper end of the inner part of the vertical rod 3022.
The internal thread opposite direction of the inside upper end of montant and inside lower extreme, after confirming the position of grinding, adjusting the length of telescopic link, can be more stable with the supporting component through the setting of opposite direction internal thread, the unstable problem that can not appear leading to because the runner rotates.
Further, the shaft core 201 is connected with the rotating wheel 50 through a quick joint.
The quick connector is arranged, so that the rotating wheel can be conveniently installed and detached, and the grinding time can be effectively saved.
Specifically, the rotating wheel 50 is of a circular ring structure, and the rotating wheel and the high-precision pin hole 101 are concentrically arranged.
The rotating wheel is of a circular ring structure, and the rotating wheel and the high-precision pin hole are concentrically arranged, so that the rotating is smooth in the grinding process, and the grinding effect is good.
The present embodiment also provides a grinding system for a high-precision pin hole, including: a workpiece 10 having a high-precision pin hole 101 and a grinding device for grinding the high-precision pin hole 101; the method is characterized in that: the grinding device comprises a central shaft 20, a support assembly and a rotating wheel 50; the central shaft 20 comprises a shaft core 201 and a grinding sleeve 202 fixedly sleeved on the shaft core 201; the support assembly comprises a first support assembly 30 and a second support assembly 40, the first support assembly 30 is identical in structure to the second support assembly 40, and the first support assembly 30 comprises: the device comprises a base 301, a telescopic rod 302 and a bearing 303, wherein the bearing 303 is arranged on the base 301 through the telescopic rod 302; the first supporting component 30 and the second supporting component 40 are symmetrically arranged at two sides of the workpiece 10; the grinding sleeve 202 is positioned in the high-precision pin hole 101, and the outer circumferential wall of the grinding sleeve 202 is tightly attached to the inner wall of the high-precision pin hole 101; one end of the shaft core 201 is inserted into the shaft hole of the bearing 303 of the first support component 30, and the other end of the shaft core passes through the shaft hole of the bearing 303 of the second support component 40 and then is connected with the runner 50.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
It will be appreciated that the relevant features of the method, apparatus and system described above are referred to one another. In addition, "first", "second", and the like in the above embodiments are for distinguishing the embodiments, and do not represent merits of the embodiments.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the system and the module described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
The algorithms and displays presented herein are not inherently related to any particular computer, virtual machine, or other apparatus. Various general purpose systems may also be used with the teachings herein. The required structure for constructing such a device will be apparent from the description above. In addition, the present invention is not directed to any particular programming language. It is appreciated that a variety of programming languages may be used to implement the teachings of the present invention as described herein, and any descriptions of specific languages are provided above to disclose the best modes of the invention.
In the embodiments provided in the present application, it should be understood that the disclosed system and method may be implemented in other ways. The above-described system embodiments are merely illustrative, and for example, the division of the modules is merely a logical division, and other divisions may be realized in practice, and for example, a plurality of modules or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or units through some communication interfaces, and may be in an electrical, mechanical or other form.
The modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
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; although the present invention has been described in detail with reference to the foregoing embodiments, it should 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; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (6)
1. A grinding device for a high-precision pin hole, which is used for grinding the high-precision pin hole (101) on a workpiece (10), is characterized in that: the grinding device comprises a central shaft (20), a support assembly and a rotating wheel (50);
the central shaft (20) comprises a shaft core (201) and a grinding sleeve (202) fixedly sleeved on the shaft core (201);
the support assembly comprises a first support assembly (30) and a second support assembly (40), the first support assembly (30) being mechanically identical to the second support assembly (40), the first support assembly (30) comprising: the device comprises a base (301), a telescopic rod (302) and a bearing (303), wherein the bearing (303) is arranged on the base (301) through the telescopic rod (302);
when the workpiece support device works, the first support assembly (30) and the second support assembly (40) are symmetrically arranged on two sides of the workpiece (10); the grinding sleeve (202) is positioned in the high-precision pin hole (101), and the outer circumferential wall of the grinding sleeve (202) is tightly attached to the inner wall of the high-precision pin hole (101); one end of the shaft core (201) is inserted into the shaft hole of the bearing (303) of the first supporting component (30), and the other end of the shaft core penetrates through the shaft hole of the bearing (303) of the second supporting component (40) and then is connected with the rotating wheel (50).
2. A high-precision pin hole grinding apparatus according to claim 1, wherein: at least two through holes (203) are axially and symmetrically arranged on the grinding sleeve (202).
3. A high-precision pin hole grinding apparatus according to claim 1, wherein: the telescopic rod (302) comprises a first supporting rod (3021), a vertical rod (3022) and a second supporting rod (3023); first bracing piece (3021) fixed set up in the top of base (301), the top of first bracing piece (3021) with the bottom threaded connection of montant (3022), the top of montant (3022) with the bottom threaded connection of second bracing piece (3023), the upper end of second bracing piece (3023) with the outer wall fixed connection of bearing (303).
4. A high-precision pin hole grinding apparatus according to claim 3, wherein: a vertical internal thread is arranged inside the vertical rod (3022), and the internal thread at the upper end inside the vertical rod (3022) is opposite to the internal thread at the lower end inside the vertical rod (3022); the upper end of the outer wall of the first supporting rod (3021) is provided with external threads corresponding to the internal threads at the lower end of the interior of the vertical rod (3022); the upper end of the outer wall of the second supporting rod (3023) is provided with external threads corresponding to the internal threads at the upper end of the vertical rod (3022).
5. A high-precision pin hole grinding apparatus according to claim 1, wherein: the shaft core (201) is connected with the rotating wheel (50) through a quick joint.
6. A high precision pin bore grinding system comprising: a workpiece (10) having a high-precision pin hole (101) and a grinding device for grinding the high-precision pin hole (101); the method is characterized in that: the grinding device comprises a central shaft (20), a support assembly and a rotating wheel (50); the central shaft (20) comprises a shaft core (201) and a grinding sleeve (202) fixedly sleeved on the shaft core (201); the support assembly comprises a first support assembly (30) and a second support assembly (40), the first support assembly (30) being mechanically identical to the second support assembly (40), the first support assembly (30) comprising: the device comprises a base (301), a telescopic rod (302) and a bearing (303), wherein the bearing (303) is arranged on the base (301) through the telescopic rod (302);
the first supporting component (30) and the second supporting component (40) are symmetrically arranged on two sides of the workpiece (10); the grinding sleeve (202) is positioned in the high-precision pin hole (101), and the outer circumferential wall of the grinding sleeve (202) is tightly attached to the inner wall of the high-precision pin hole (101); one end of the shaft core (201) is inserted into the shaft hole of the bearing (303) of the first supporting component (30), and the other end of the shaft core penetrates through the shaft hole of the bearing (303) of the second supporting component (40) and then is connected with the rotating wheel (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020908771.1U CN212240550U (en) | 2020-05-26 | 2020-05-26 | Grinding device and system for high-precision pin holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020908771.1U CN212240550U (en) | 2020-05-26 | 2020-05-26 | Grinding device and system for high-precision pin holes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212240550U true CN212240550U (en) | 2020-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020908771.1U Active CN212240550U (en) | 2020-05-26 | 2020-05-26 | Grinding device and system for high-precision pin holes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212240550U (en) |
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2020
- 2020-05-26 CN CN202020908771.1U patent/CN212240550U/en active Active
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