CN214351084U - Self-centering structure for piston machining - Google Patents
Self-centering structure for piston machining Download PDFInfo
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- CN214351084U CN214351084U CN202120487618.0U CN202120487618U CN214351084U CN 214351084 U CN214351084 U CN 214351084U CN 202120487618 U CN202120487618 U CN 202120487618U CN 214351084 U CN214351084 U CN 214351084U
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- connecting sleeve
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- setting element
- base
- centering structure
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Abstract
The application provides a piston processing is from centering structure relates to piston processing technology field, including base, connecting sleeve and setting element, the base passes through connecting sleeve and links to each other with the setting element, the middle part of setting element is equipped with interior tang, connecting sleeve's the last outer tang that is equipped with in week, be equipped with the mounting hole that is used for installing the lathe main shaft on the base, all adopt wedge structural connection between base and the connecting sleeve and between connecting sleeve and the setting element. The application provides a piston processing is from centering structure, all adopt wedge structural connection between base and the connecting sleeve and between connecting sleeve and the setting element, avoided having improved piston processing from centering structure's structural strength because the screw thread that bolted connection arouses is inefficacy, has improved positioning accuracy, has ensured piston size and geometric tolerances precision.
Description
Technical Field
The application relates to the technical field of piston machining, in particular to a self-centering structure for piston machining.
Background
The piston is a core component of the engine and influences the service life and the safety of the engine. The machining size and form and position tolerance of the piston are strictly controlled in the piston machining process. The conventional piston machining has the following problems: the contact area of the structure is small, the rigidity is poor, the workpiece vibration is easily caused in the turning process, the repeated positioning precision is low, and therefore the size and the form and position tolerance of the piston de are difficult to guarantee, and the hidden danger of quality problems caused by human factors is large. The existing piston processing positioning piece independently fixes the inner side wall or the outer side wall of the piston.
Patent publication No. CN205765145U discloses a piston machining self-centering structure, the self-centering structure for piston machining comprises a machine tool main shaft, a connecting disc and a positioning spigot disc, wherein the connecting disc is arranged on the machine tool main shaft by a fastening bolt, the positioning spigot disc is fixed with the connecting disc by a connecting bolt, the self-centering structure has simple structure, strong rigidity during piston processing and high repeated positioning precision, realizes the quick positioning of the piston, ensures the size and form and position tolerance of the piston, but, the structure can only position the piston with single diameter and single positioning form, because the positioning spigot disc is connected with the connecting disc by screw thread, in the processing process of the piston, the main shaft of the machine tool runs at a high speed to cause the vibration of a workpiece, the vibration of the workpiece is transmitted to the positioning spigot disc and the connecting disc to easily cause the failure of threaded connection, therefore, the positioning precision of the piston is influenced, and the situation that the size and the form and position tolerance of the piston are difficult to guarantee still exists.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the prior art, this application provides a piston machining is from centering structure to reach the beneficial effect that improves piston positioning accuracy, improve piston size and geometric tolerances precision.
The application provides a piston machining is from centering structure, including base, connecting sleeve and setting element, the base passes through connecting sleeve and links to each other with the setting element, the middle part of setting element is equipped with interior tang, connecting sleeve's the last tang that is equipped with in week, be equipped with the mounting hole that is used for installing the lathe main shaft on the base, all adopt wedge structural connection between base and the connecting sleeve and between connecting sleeve and the setting element, avoided having improved the structural strength of piston machining from centering structure because the screw thread that bolted connection arouses is inefficacy, has improved positioning accuracy, has ensured piston size and form and position tolerance precision.
Furthermore, the inner spigot is a boss arranged in the middle of the positioning piece, so that the inner spigot and the outer spigot can be conveniently butted with each other.
Furthermore, the top of connecting sleeve inner wall is equipped with vertical face, the top surface of setting element is located interior tang periphery is the horizontal plane, vertical face is higher than the horizontal plane, enclose into first recess between connecting sleeve and the setting element, outer tang is the vertical face at connecting sleeve top, is convenient for interior tang and outer tang butt joint each other.
Furthermore, the top of the connecting sleeve is provided with a second groove for fixing the piston to be processed, and the piston to be processed can be inserted into the second groove.
Further, the middle part of base is equipped with the toper platform, connecting sleeve's middle part be equipped with the first bell mouth of toper platform assorted, be equipped with the conical surface on the lateral wall of setting element, connecting sleeve's inside be equipped with conical surface assorted second taper hole.
Furthermore, an anti-skid gasket is arranged between the connecting sleeve and the base, so that an anti-skid effect is improved.
Further, the second groove can be in interference fit with the side wall of the piston to be processed, and connection tightness is improved.
Furthermore, the lug boss is provided with an inclined angle, so that the piston is convenient to assemble.
Furthermore, interference fit is adopted between base and the connecting sleeve and between connecting sleeve and the setting element, has improved and has connected the fastening nature.
Furthermore, the top of the positioning piece is provided with a through hole, so that the positioning piece is convenient to hoist.
The beneficial effect of this application lies in:
according to the piston processing self-centering structure, the base is connected with the connecting sleeve and the connecting sleeve is connected with the positioning piece through the wedge-shaped structures, so that thread failure caused by bolt connection is avoided, the structural strength of the piston processing self-centering structure is improved, the positioning precision is improved, and the size and form and position tolerance precision of the piston are ensured; the middle part of setting element is equipped with interior tang, be equipped with outer tang on connecting sleeve's the circumference, increased the location form of piston, both can realize the inside wall location of piston, also can realize the lateral wall location, be convenient for the processing of piston inside and outside wall.
In addition, the design principle of the application is reliable, the structure is simple, and the application prospect is very wide.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a front view of a self-centering piston machining structure according to an embodiment of the present application.
FIG. 2 is a schematic longitudinal sectional structural view of a piston machined self-centering structure according to an embodiment of the present application.
In the figure, the anti-skid device comprises a base 1, a base 2, a connecting sleeve 3, a positioning piece 4, a mounting hole 5, a boss 6, a vertical surface 7, a horizontal surface 8, a first groove 9, a second groove 10, a conical table 11, an anti-skid gasket 12 and a through hole.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The following explains key terms appearing in the present application.
As shown in fig. 1 and fig. 2, the piston machining self-centering structure provided by the present application includes a base 1, a connecting sleeve 2 and a positioning member 3, wherein the base 1 is connected to the positioning member 3 through the connecting sleeve 2.
The middle part of base 1 is equipped with toper platform 10, the middle part of connecting sleeve 2 is equipped with the first bell mouth with toper platform 10 assorted, and toper platform 10 inserts in the first bell mouth and with connecting sleeve 2 interference fit. Be equipped with the conical surface on the lateral wall of setting element 3, connecting sleeve 2's inside is equipped with and conical surface assorted second toper hole, and the one end that has the conical surface on the setting element 3 inserts in the second toper hole to with connecting sleeve 2 interference fit. The central line of the first conical hole is coincident with the central line of the second conical hole.
The middle part of setting element 3 is equipped with interior tang, the one end of setting element 3 is equipped with the opening, the other end middle part of setting element 3 is equipped with boss 5, interior tang is for setting up boss 5 at setting element 3 middle part, and during the processing piston, the one end of piston cup joints on boss 5, and the lateral wall of boss 5 is hugged closely to the inside wall of piston. The boss 5 is provided with an inclined angle, so that the connection with the piston is facilitated.
The connecting sleeve 2 is circumferentially provided with an outer spigot, the top of the inner wall of the connecting sleeve 2 is provided with a vertical surface 6 which is vertically arranged, and the vertical surface 6 is of an annular structure. The top surface of the positioning piece 3 is positioned on the periphery of the inner spigot and is a horizontal plane 7, and the vertical plane 6 is perpendicular to the horizontal plane 7. The vertical surface 6 is higher than the horizontal surface 7, a first groove 8 is defined between the connecting sleeve 2 and the positioning part 3, namely the first groove 8 with an upward opening is defined between the vertical surface 6 and the horizontal surface 7. The outer spigot is a vertical surface 6 at the top of the connecting sleeve 2. When the piston is processed, the piston is inserted into the first groove 8, and the outer side wall of the piston is tightly attached to the vertical surface 6.
The base 1 is provided with a mounting hole 4 for mounting a machine tool spindle, and the base 1 and the connecting sleeve 2 as well as the connecting sleeve 2 and the positioning piece 3 are connected by adopting a wedge-shaped structure.
The top of connecting sleeve 2 is equipped with the second recess 9 that is used for fixed piston to be processed, and the piston to be processed can peg graft with second recess 9. The second groove 9 can be in interference fit with the side wall of the piston to be machined. The inner and outer side walls of the piston are respectively attached to the inner and outer side walls of the second groove 9.
Be equipped with anti-skidding packing ring 11 between connecting sleeve 2 and the base 1, can avoid sliding each other between connecting sleeve 2 and the base 1. The top of setting element 3 is equipped with through-hole 12, and the hoist and mount piece of being convenient for links to each other with setting element 3, realizes setting element 3 and connecting sleeve 2's split.
According to the piston processing self-centering structure, the base 1 and the connecting sleeve 2 as well as the connecting sleeve 2 and the positioning piece 3 are connected through the wedge-shaped structures, so that thread failure caused by bolt connection is avoided, the structural strength of the piston processing self-centering structure is improved, the positioning precision is improved, and the size and form and position tolerance precision of a piston are ensured; the middle part of setting element 3 is equipped with interior tang, be equipped with outer tang on connecting sleeve 2's the circumference, increased the location form of piston, both can realize the inside wall location of piston, also can realize the lateral wall location, the processing of the piston inside and outside wall of being convenient for.
Although the present application has been described in detail with reference to the accompanying drawings in conjunction with the preferred embodiments, the present application is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present application by those skilled in the art without departing from the spirit and scope of the present application, and these modifications or substitutions are intended to be covered by the present application/any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a piston machining is from centering structure which characterized in that: including base (1), connecting sleeve (2) and setting element (3), base (1) links to each other with setting element (3) through connecting sleeve (2), the middle part of setting element (3) is equipped with interior tang, be equipped with outer tang on the circumference of connecting sleeve (2), be equipped with mounting hole (4) that are used for installing the lathe main shaft on base (1), all adopt the wedge structure to be connected between base (1) and connecting sleeve (2) and between connecting sleeve (2) and setting element (3).
2. The piston machining self-centering structure of claim 1, wherein: the inner spigot is a boss (5) arranged in the middle of the positioning piece (3).
3. The piston machining self-centering structure of claim 1, wherein: the top of connecting sleeve (2) inner wall is equipped with vertical face (6), the top surface of setting element (3) is located the tang periphery is horizontal plane (7), vertical face (6) are higher than horizontal plane (7), enclose into first recess (8) between connecting sleeve (2) and setting element (3), outer tang is vertical face (6) at connecting sleeve (2) top.
4. A piston machining self-centering structure according to any one of claims 1 to 3, wherein: the top of connecting sleeve (2) is equipped with second recess (9) that are used for fixed piston to be processed, and the piston to be processed can be pegged graft with second recess (9).
5. The piston machining self-centering structure of claim 4, wherein: the middle part of base (1) is equipped with toper platform (10), the middle part of connecting sleeve (2) be equipped with toper platform (10) assorted first bell mouth, be equipped with the conical surface on the lateral wall of setting element (3), the inside of connecting sleeve (2) be equipped with conical surface assorted second bell mouth hole.
6. The piston machining self-centering structure of claim 1, wherein: an anti-skid gasket (11) is arranged between the connecting sleeve (2) and the base (1).
7. The piston machining self-centering structure of claim 4, wherein: the second groove (9) can be in interference fit with the side wall of the piston to be machined.
8. The piston machining self-centering structure of claim 2, wherein: the lug boss (5) is provided with an inclined angle.
9. The piston machining self-centering structure of claim 1, wherein: interference fit is adopted between the base (1) and the connecting sleeve (2) and between the connecting sleeve (2) and the positioning piece (3).
10. The piston machining self-centering structure of claim 1, wherein: the top of the positioning piece (3) is provided with a through hole (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120487618.0U CN214351084U (en) | 2021-03-08 | 2021-03-08 | Self-centering structure for piston machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120487618.0U CN214351084U (en) | 2021-03-08 | 2021-03-08 | Self-centering structure for piston machining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214351084U true CN214351084U (en) | 2021-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120487618.0U Active CN214351084U (en) | 2021-03-08 | 2021-03-08 | Self-centering structure for piston machining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214351084U (en) |
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2021
- 2021-03-08 CN CN202120487618.0U patent/CN214351084U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A self centering structure for piston machining Effective date of registration: 20220609 Granted publication date: 20211008 Pledgee: Lanshan Branch of Rizhao Bank Co.,Ltd. Pledgor: RIZHAO SHUANGQU MACHINERY MANUFACTURING Co.,Ltd. Registration number: Y2022370010084 |