CN218017475U - Aligning device for grinding surface coating of piston rod - Google Patents
Aligning device for grinding surface coating of piston rod Download PDFInfo
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- CN218017475U CN218017475U CN202221770630.3U CN202221770630U CN218017475U CN 218017475 U CN218017475 U CN 218017475U CN 202221770630 U CN202221770630 U CN 202221770630U CN 218017475 U CN218017475 U CN 218017475U
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- adjusting
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- piston rod
- connecting shaft
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Abstract
The utility model discloses a aligning device for piston rod surface coating abrasive machining belongs to piston rod abrasive machining technical field, include: the two aligning components which are oppositely arranged at intervals comprise a connecting shaft, an aligning core rod and a plurality of adjusting pieces; one end of the connecting shaft forms a fixed end which is detachably and coaxially inserted with the end part of the piston rod, and the other end of the connecting shaft is coaxially provided with an adjusting hole; the adjusting pieces correspond to the connecting holes one by one and are movably inserted into the connecting holes, so that the adjusting pieces extend to the depth of the adjusting holes by adjusting the depth of the adjusting pieces, and a position-adjustable aligning area is formed between the adjusting ends of the adjusting pieces extending into the adjusting holes; one end of the aligning core rod is in clearance fit with the adjusting hole and can be clamped in the aligning area; the utility model discloses an adjustment of piston rod grinding centre of gyration is realized to plus aligning device, and convenient to use is particularly useful for the abrasive machining behind the piston rod surface preparation coating.
Description
Technical Field
The utility model belongs to the technical field of piston rod abrasive machining technique and specifically relates to a aligning device for piston rod surface coating abrasive machining is related to.
Background
The piston rod is a connecting component which supports the piston to do work, is mainly applied to an oil cylinder and a cylinder movement executing component, and is a moving component with frequent movement and high technical requirements. In order to improve the service performance of the piston rod, a metal or ceramic coating with excellent wear resistance and corrosion resistance is generally thermally sprayed or plated on the surface of the piston rod.
In order to ensure the dimensional accuracy and the surface roughness, the surface of the coating needs to be ground. The publication number CN201832994U provides a lathe for processing a printing roller, the cylindrical grinding processing of a shaft part takes central holes or conical surfaces at two ends of the part as a rotation center, and after two centers on a headstock and a tailstock of a grinding machine clamp a workpiece, a deflector rod extending out of a headstock drive plate drives the part to rotate so as to realize the cylindrical grinding processing.
In the coating preparation process of the piston rod, the center hole or the conical surface of the piston rod is often damaged to a certain extent due to transfer, coating adhesion and the like, so that the center hole or the conical surface needs to be machined again before the outer circle is ground. The following problems mainly exist at present: 1. equipment requirements and procedures are increased; 2. the surface of the coating is a rough surface, and the correction of the central hole is difficult by taking the rough surface as a reference; 3. reworking the center hole can damage the damaged part to some extent. Therefore, the adjusting of the rotation center is realized by adopting an external aligning device, and the adjusting device has important practical value.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned technique not enough, provide a centring device for piston rod surface coating abrasive machining, can realize axle type part abrasive machining front centre of rotation's regulation, reduce the process that adopts the machining mode to maintain part centre bore or the conical surface.
In order to achieve the above technical purpose, the technical scheme of the utility model provide a centring device for piston rod surface coating abrasive machining, include:
the two aligning components are arranged oppositely and at intervals, opposite ends of the two aligning components are respectively used for being inserted into opposite ends of the piston rod, and the other ends of the two aligning components, which are deviated from the opposite ends, are used for being respectively abutted against two mounting ends of the grinding processing equipment so that the two mounting ends can drive the two aligning components to rotate;
the aligning component comprises a connecting shaft, an aligning core rod and a plurality of adjusting pieces;
one end of the connecting shaft forms a fixed end which is detachably and coaxially inserted with the end part of the piston rod, the other end of the connecting shaft is coaxially provided with an adjusting hole, and the outer peripheral surface of the connecting shaft corresponding to the adjusting hole is uniformly provided with a plurality of connecting holes which are communicated with the adjusting hole;
the adjusting pieces correspond to the connecting holes one by one and are movably inserted into the connecting holes, so that the adjusting pieces extend to the depth of the adjusting holes by adjusting the depth of the adjusting pieces, and a position-adjustable aligning area is formed between the adjusting ends of the adjusting pieces extending into the adjusting holes;
one end of the aligning core rod is in clearance fit with the adjusting hole and can be clamped in the aligning area, and the other end of the aligning core rod protrudes out of the adjusting hole and forms a clamping surface for abutting against the mounting end.
In some embodiments, the adjusting members are preferably bolts, and the number of the adjusting members is four.
In some embodiments, the end face of the adjusting part nut is provided with an angle scale, and the adjusting part tooth form is a fine tooth.
In some embodiments, the outer surface of the adjusting part is in threaded connection with a locking nut, one surface of the locking nut, which is close to the connecting shaft, is a rough surface, and a nylon ring is embedded in the inner side of the locking nut.
In some embodiments, the cross-sectional area of the middle portion of the connection shaft is greater than the cross-sectional area of the fixed end.
In some embodiments, the outer side of the middle portion of the connecting shaft is in an outer hexagonal structure.
In some embodiments, the self-aligning core rod has an outer diameter 1 to 1.5mm smaller than the diameter of the adjusting hole.
In some embodiments, the fixing end is a cylinder with an external thread on the outer circumference.
In some embodiments, the outer circular surface of the aligning core rod, which is arranged at one end of the adjusting hole, is provided with a sand blasting coating.
In some embodiments, the clamping surface of the self-aligning core rod is provided with a central hole at one end.
Compared with the prior art, the beneficial effects of the utility model include: through the connecting shaft, the aligning core rod and the adjusting piece, one end of the connecting shaft can be coaxially assembled and fixed with the part, the connecting hole arranged in the radial direction of the connecting shaft is used for installing the adjusting piece, and the position of the aligning core rod in the adjusting hole is adjusted through the adjusting piece, so that the adjustment of the rotation center of the piston rod before the outer circle grinding machining is realized. The utility model discloses an plus device realizes the adjustment of piston rod centre of rotation, need not to maintain the original centre bore of work piece or the conical surface, and convenient to use is particularly useful for the excircle abrasive machining after the piston rod surface preparation coating.
Drawings
Fig. 1 is a schematic front sectional view of a centering assembly of an embodiment of a centering device for grinding a surface coating of a piston rod according to the present invention;
fig. 2 is a schematic view of a front view structure of a aligning assembly of an embodiment of the aligning device for grinding a surface coating of a piston rod according to the present invention;
fig. 3 is a front view structural schematic diagram of a aligning assembly of an embodiment of the aligning device for grinding a surface coating of a piston rod of the present invention.
In the figure: 1. a connecting shaft; 11. a fixed end; 12. an adjustment hole; 13. connecting holes; 2. aligning core rods; 21. a clamping surface; 22. a central bore; 3. an adjustment member; 31. locking the nut; 32. a graduated scale; 4. and (4) a tip.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, the utility model provides a self-aligning device for piston rod surface coating abrasive machining, include:
two aligning subassemblies that relative and interval set up, the looks remote site of two aligning subassemblies is used for the relative both ends of grafting piston rod respectively, and the other end that two aligning subassemblies and relative end deviate from is used for the both ends installation end of butt abrasive machining equipment respectively to supply two installation ends can drive two aligning subassemblies and rotate.
The aligning component comprises a connecting shaft 1, an aligning core rod 2 and a plurality of adjusting pieces 3.
One end of the connecting shaft 1 is provided with a fixed end 11 which is detachably and coaxially inserted with the end part of the piston rod, the other end of the connecting shaft 1 is coaxially provided with an adjusting hole 12, and the peripheral surface of the connecting shaft 1 corresponding to the adjusting hole 12 is uniformly provided with a plurality of connecting holes 13 which are communicated with the adjusting hole 12.
The adjusting pieces 3 correspond to the connecting holes 13 one by one and are movably inserted into the connecting holes, so that the adjusting pieces 3 can extend to the depth of the adjusting holes 12 by adjusting the depth of the adjusting pieces 3, and a position-adjustable aligning area is formed between the adjusting ends of the adjusting pieces 3 extending into the adjusting holes 12.
One end of the aligning core rod 2 is in clearance fit with the adjusting hole 12 and can be clamped in the aligning area, and the other end of the aligning core rod 2 protrudes out of the adjusting hole 12 and forms a clamping surface 21 for abutting against the mounting end.
In the device, the piston rod to be processed is characterized in that the two ends of the piston rod to be processed are respectively provided with inner grooves capable of being matched with the fixed ends 11, the inner grooves are coaxial with the piston rod, when the device is used, the fixed ends 11 of the two connecting shafts 1 are respectively connected into the inner grooves at the two ends of the piston rod and are coaxially fixed with the piston rod, one end of the aligning core rod 2 is connected with the connecting shaft 1 through the adjusting holes 12, and the other ends of the aligning assembly and the opposite ends of the aligning assembly are used for being respectively abutted to two mounting ends of grinding processing equipment, namely the other end of the aligning core rod 2 can be matched and connected with the mounting ends of a grinding machine, so that the two ends of the piston rod can be fixed by using the aligning device, finally, a plurality of adjusting pieces 3 connected with the connecting shafts 1 are used, the adjusting of the depth of the adjusting pieces 3 extending to the adjusting holes 12 is used for adjusting the aligning area, the relative position of the connecting shafts 1 and the aligning core rod 2 can be adjusted, and the adjustment of the rotation center of a part to be processed can be realized.
Further, the mounting ends of the grinding machine are two, when the grinding machine is used, the two ends of the piston rod are connected with the aligning device, the two mounting ends can respectively abut against the clamping surfaces 21 tightly, and therefore the piston rod is clamped by the aligning devices at the two ends of the piston rod.
As shown in fig. 1, in some embodiments, the cross-sectional area of the middle of the connecting shaft 1 is greater than the cross-sectional area of the fixing end 11, and the cross-sectional area of the middle of the connecting shaft 1 is greater than the cross-sectional area of the fixing end 11, so that when the connecting shaft 1 is engaged with the internal groove of the piston rod, the piston rod will abut against the middle of the connecting shaft 1 after the connecting shaft 1 extends to a certain distance, thereby fixing the transverse position of the piston rod.
Furthermore, the outer diameter of the aligning core rod 2 is 1-1.5 mm smaller than the aperture of the adjusting hole 12, the relative movable space between the aligning core rod 2 and the adjusting hole 12 is smaller, and the adjusting piece 3 is convenient to fix the aligning core rod 2 so as to finely adjust the rotation center of the part to be processed.
Furthermore, the outer circular surface of the aligning core rod 2 at one end of the adjusting hole 12 is provided with a sandblasting coating, and the outer circular surface of the aligning core rod 2 is subjected to sandblasting treatment so as to increase the friction force between the aligning core rod 2 and the adjusting piece 3, thereby ensuring the stability of the aligning core rod 2 before and after adjustment.
As shown in fig. 1 and 2, in some embodiments, the adjusting members 3 preferably use bolts, and specifically, when the adjusting members 3 use bolts, the connecting holes 13 are threaded holes, and the four adjusting members 3 are respectively arranged in four directions outside the connecting shaft 1 and are in threaded connection with the connecting holes 13, in use, the adjusting members 3 on the upper and lower sides of the connecting shaft 1 are first rotated, the up-and-down positions of the aligning mandrel 2 are controlled by using the distance in which the two adjusting members 3 are screwed, and then the adjusting members 3 on the left and right sides of the connecting shaft 1 are rotated, and the left-and-right positions of the aligning mandrel 2 are controlled by using the distance in which the two adjusting members 3 are screwed.
Furthermore, the adjusting piece 3 can also adopt a chock block or a clamping block, the position of the aligning core rod 2 is adjusted by the chock block or the clamping block, and the chock block or the clamping block is fixed, so that the rotation center of the part to be processed can be adjusted
Further, 3 nut end faces of regulating part are equipped with angle scale 32, 3 tooth types of regulating part are thin tooth, through the setting that is thin tooth with 3 tooth types of regulating part, to the regulating variable of aligning core rod 2 when can reducing 3 screws in of regulating part, in order to improve the regulation precision, angle scale 32 through setting up, in this embodiment, when 3 rotation circles of regulating part (360 promptly), regulating part 3 advances 1mm, it is exactly 0.5mm to rotate half a circle then, the quarter circle is exactly 0.25mm, analogize in proper order, the messenger utilizes angle scale 32 can reachd the angle of 3 screws in the regulating part, so that control regulating variable, and control precision is high.
Further, the surface threaded connection of adjusting part 3 has lock nut 31, the one side that lock nut 31 is close to connecting axle 1 is the matte, lock nut 31 inboard inlays and is equipped with the nylon circle, specifically, the position department that connecting axle 1 periphery and connecting hole 13 correspond is equipped with the plane, when lock nut 31 screws up, lock nut 31's matte contradicts on the plane of connecting axle 1, lock nut 31 and 3 threaded connection of adjusting part compress tightly the nylon circle, friction area and frictional force when can increasing adjusting part 3 and connect.
Further, a center hole 22 is formed in one end of a clamping surface 21 of the aligning core rod 2, specifically, a center 4 is arranged at the mounting end of the grinding machine, and the center hole 22 is used for being connected with the center 4, so that the aligning device can be used for quickly centering and fixing the piston rod.
As shown in fig. 2, in some embodiments, the fixing end 11 is a cylinder with an external thread on the outer peripheral surface, so that the piston rod to be processed is characterized in that the two sides of the cylinder have internal thread grooves, and the fixing end 11 can be in thread fit with the internal thread grooves to realize coaxial fixing of the piston rod.
Further, the outside at connecting axle 1 middle part is outer hexagonal structure, and through the setting that is outer hexagonal structure with the outside at connecting axle 1 middle part, when being connected connecting axle 1 and the internal thread groove of piston rod, the staff of being convenient for uses the outer hexagonal position of instrument centre gripping to screw up connecting axle 1.
As shown in fig. 3, the fixing end 11 may also be a polygonal cylinder capable of fitting and tightly fitting with the inner groove of the piston rod, so as to coaxially fix the piston rod.
Further, the connecting shaft 1, the aligning core rod 2, the adjusting piece 3 and the locking nut 31 are made of stainless steel or medium carbon steel.
The working principle is as follows: firstly, a connecting shaft 1 is in threaded connection with an internal thread groove of a piston rod to be processed, a tool is used for clamping an outer hexagonal part and screwing the connecting shaft 1, then an aligning core rod 2 is arranged in an adjusting hole 12 of the connecting shaft 1, after the piston rod is installed on two sides in the mode, parts are clamped on an outer circular grinding machine, the clamping mode is that a center hole 22 of the aligning core rod 2 is clamped by a center 4 of the grinding machine, then a locking nut 31 and an adjusting piece 3 are combined and then arranged in four radial connecting holes 13 of the adjusting hole 12, the jumping quantity of an outer circular reference position of the piston rod is corrected by a dial indicator, the adjustment of a part rotation center is realized by rotating the four adjusting pieces 3, and after the piston rod is corrected, the locking nut 31 is screwed, and the adjusting piece 3 is prevented from loosening.
The utility model discloses a connecting axle 1, aligning plug 2 and the regulating part 3 that set up, the one end of connecting axle 1 can be fixed with the coaxial assembly of part, is used for installing regulating part 3 at connecting hole 13 that the radial direction of connecting axle 1 set up, adjusts the position of aligning plug 2 in regulation hole 12 through regulating part 3 to realize the adjustment of piston rod centre of turning before excircle abrasive machining. The utility model discloses an plus device realizes the adjustment of piston rod centre of rotation, need not to maintain the original centre bore 22 of work piece or the conical surface, and convenient to use is particularly useful for the excircle abrasive machining after the piston rod surface preparation coating.
The above description of the present invention does not limit the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a self-aligning device for piston rod surface coating abrasive machining which characterized in that includes:
the two aligning components are arranged oppositely and at intervals, opposite ends of the two aligning components are respectively used for being inserted into opposite ends of the piston rod, and the other ends of the two aligning components, which are deviated from the opposite ends, are respectively abutted against two mounting ends of the grinding processing equipment so that the two mounting ends can drive the two aligning components to rotate;
the aligning component comprises a connecting shaft, an aligning core rod and a plurality of adjusting pieces;
one end of the connecting shaft forms a fixed end which is detachably and coaxially inserted with the end part of the piston rod, the other end of the connecting shaft is coaxially provided with an adjusting hole, and the outer peripheral surface of the connecting shaft corresponding to the adjusting hole is uniformly provided with a plurality of connecting holes which are communicated with the adjusting hole;
the adjusting pieces correspond to the connecting holes one by one and are movably inserted into the connecting holes, so that a position-adjustable aligning area is formed between adjusting ends of the adjusting pieces extending into the adjusting holes by adjusting the depth of the adjusting pieces extending to the adjusting holes;
one end of the aligning core rod is in clearance fit with the adjusting hole and can be clamped in the aligning area, and the other end of the aligning core rod protrudes out of the adjusting hole and forms a clamping surface for abutting against the mounting end.
2. The centering device for grinding of the surface coating of the piston rod as set forth in claim 1, wherein the adjusting members are preferably bolts, and the number of the adjusting members is four.
3. The aligning device for grinding the surface coating of the piston rod according to claim 2, wherein the end face of the nut of the adjusting member is provided with an angle scale, and the tooth form of the adjusting member is a fine tooth.
4. The aligning device for grinding the surface coating of the piston rod as claimed in claim 2, wherein the outer surface of the adjusting member is in threaded connection with a locking nut, one surface of the locking nut, which is close to the connecting shaft, is a rough surface, and a nylon ring is embedded inside the locking nut.
5. The centering device for grinding the surface coating of the piston rod according to claim 1, wherein the cross-sectional area of the middle part of the connecting shaft is larger than that of the fixed end.
6. The aligning device for grinding of the surface coating of the piston rod according to claim 1, wherein the outer side of the middle part of the connecting shaft is of an outer hexagonal structure.
7. The aligning device for grinding of the surface coating of the piston rod according to claim 1, wherein the outer diameter of the aligning mandrel is 1 to 1.5mm smaller than the diameter of the adjusting hole.
8. The aligning device for grinding the surface coating of the piston rod according to claim 1, wherein the fixing end is a cylinder with an external thread on the outer peripheral surface.
9. The aligning device for grinding the surface coating of the piston rod according to claim 1, wherein the outer circumferential surface of the aligning core rod at one end of the adjusting hole is provided with a sand blasting coating.
10. The centering device for grinding the surface coating of the piston rod according to claim 1, wherein a center hole is formed in one end of the clamping surface of the centering core rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221770630.3U CN218017475U (en) | 2022-07-08 | 2022-07-08 | Aligning device for grinding surface coating of piston rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221770630.3U CN218017475U (en) | 2022-07-08 | 2022-07-08 | Aligning device for grinding surface coating of piston rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218017475U true CN218017475U (en) | 2022-12-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221770630.3U Active CN218017475U (en) | 2022-07-08 | 2022-07-08 | Aligning device for grinding surface coating of piston rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218017475U (en) |
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2022
- 2022-07-08 CN CN202221770630.3U patent/CN218017475U/en active Active
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Address after: Two road 430030 in Hubei province in Qiaokou District of Wuhan city Baofeng No. 126 Patentee after: Wuhan Material Protection Research Institute Co., Ltd. of China National Machinery Engineering Corp. Address before: Two road 430030 in Hubei province in Qiaokou District of Wuhan city Baofeng No. 126 Patentee before: WUHAN RESEARCH INSTITUTE OF MATERIALS PROTECTION Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |