CN115709449A - Combined piston oil duct oil inlet hole isolation pipe assembly and assembling method - Google Patents
Combined piston oil duct oil inlet hole isolation pipe assembly and assembling method Download PDFInfo
- Publication number
- CN115709449A CN115709449A CN202211111136.0A CN202211111136A CN115709449A CN 115709449 A CN115709449 A CN 115709449A CN 202211111136 A CN202211111136 A CN 202211111136A CN 115709449 A CN115709449 A CN 115709449A
- Authority
- CN
- China
- Prior art keywords
- isolation
- positioning
- assembly
- isolation tube
- angular
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Automatic Assembly (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The invention discloses an oil inlet hole isolation pipe assembly of a combined piston oil duct and an assembly method, and solves the technical problems that in the prior art, the assembly height and size cannot be ensured by adopting a manual knocking method in the assembly process of an elastic isolation pipe of an oil inlet hole of a cooling oil duct in a combined piston, and the isolation pipe is deformed and scrapped by adopting the knocking assembly method. The device comprises an isolation tube and an isolation tube positioning assembly, wherein the isolation tube positioning assembly comprises a support body and a guide body connected with the support body, and the lower end surface of the support body is connected with a piston skirt; the guide body is connected with an isolation tube angular positioning pressing block used for arranging an isolation tube, and one end of the isolation tube angular positioning pressing block used for arranging the isolation tube extends into the piston skirt. The oil inlet hole isolation pipe of the combined piston oil duct and the assembling method can be better used for assembling the oil inlet hole isolation pipe of the combined piston oil duct, and are wide in application range and convenient to use.
Description
Technical Field
The invention relates to the technical field of manufacturing of combined pistons of internal combustion engines, in particular to a combined piston oil duct oil inlet hole isolation pipe assembly and an assembling method.
Background
In the industry, a manual knocking method is adopted in the assembly process of the elastic isolation pipe of the oil inlet hole of the cooling oil duct in the combined piston. The inclined surface of the isolation pipe needs to be aligned with the central axis of the piston, the angular phase positioning error is too large, the isolation pipe and the oil duct of the piston cannot be normally assembled due to interference, and the angular phase positioning error cannot be controlled by adopting a knocking assembly method. The existing isolation pipe is easy to deform and scrap by adopting a knocking assembly method, has low assembly efficiency and cannot adapt to mass mode production.
Disclosure of Invention
The invention aims to provide a combined piston oil duct oil inlet hole isolation pipe assembly and an assembly method, and aims to solve the technical problems that the existing isolation pipe is easy to deform and scrap by adopting a knocking assembly method, the assembly efficiency is low, and the assembly method cannot adapt to mass production.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides a combined piston oil duct oil inlet hole isolation pipe assembly which comprises an isolation pipe and an isolation pipe positioning assembly, wherein the isolation pipe positioning assembly comprises a supporting body and a guide body connected with the supporting body, and the lower end surface of the supporting body is connected with a piston skirt; the guide body is connected with an isolation pipe angular positioning pressing block used for arranging an isolation pipe, and one end of the isolation pipe angular positioning pressing block used for arranging the isolation pipe extends into the piston skirt.
Alternatively or preferably, the isolation pipe is in a right-angled trapezoid structure with an inclined surface on one side.
Optionally or preferably, the isolation tube angular positioning pressing block comprises a pressing positioning shaft and an angular guide block nested with the pressing positioning shaft, a spring is arranged at the lower end of the pressing positioning shaft, and a remanufacturing screw used for fixing the isolation tube angular positioning pressing block is arranged at the upper end of the pressing positioning shaft.
Optionally or preferably, one end of the angular guide block is provided with an angular positioning chute for clamping and positioning the isolation pipe, and the inclined surface of the isolation pipe is clamped with the inclined surface of the angular positioning chute.
Optionally or preferably, the angular guide block further comprises a pressing and positioning shaft guide hole for guiding and limiting the pressing and positioning shaft; the spring mounting hole is used for mounting a spring; the upper end face of the angular guide block is also provided with a threaded hole for limiting the compression of the positioning shaft, and the remanufacturing screw is connected with the threaded hole.
Optionally or preferably, the side wall of the angular guide block is further provided with an isolation pipe observation hole for observing the positioning condition of the end surface of the isolation pipe.
Optionally or preferably, the piston skirt is provided with a positioning hole, the support body is provided with a positioning pin, and the positioning hole and the positioning pin are used for enabling the support body to be matched with the piston skirt.
An assembling method of an oil inlet hole isolation pipe assembly of a combined piston oil duct comprises the following steps:
s1, before assembly, the device is positioned by adopting one surface and two pins, and the support body is in fit connection with the piston skirt through the positioning pins; the lower end surface of the support body is connected with the piston skirt;
s2, positioning an isolation tube, namely mounting the non-inclined end of the isolation tube on an isolation tube mounting opening part of the piston skirt, integrally mounting an isolation tube angular positioning pressing block into a guide groove in the middle of a guide body, and mounting the inclined end surface of the isolation tube on the inclined surface of an angular positioning chute in the angular positioning guide block on the isolation tube angular positioning pressing block; the guide cylindrical surface of the isolation tube on the compression positioning shaft is inserted into the inner hole of the isolation tube to guide the isolation tube, so that the isolation tube is kept vertical; checking the positioning condition of one end of the inclined surface of the isolation tube through the isolation tube observation hole on the phase guide block;
s3, pressing the isolation tube in, extending a pressure rod into the hole on the compression positioning shaft, and moving the compression positioning shaft downwards under the action of the pressure rod until the end face of the compression positioning shaft is contacted with the top end of the inclined surface of the isolation tube; and continuously applying the acting force until the isolation tube is pressed into the piston skirt mounting hole, and when the upper end surface of the pressing positioning shaft and the upper end surface of the guide body form a plane, the isolation tube cannot be continuously pressed due to blocking, so that the assembly work of the isolation tube is completed.
Based on the technical scheme, the embodiment of the invention at least can produce the following technical effects:
according to the oil inlet hole isolation pipe assembly of the combined piston oil duct and the assembling method, accurate and nondestructive assembling of the isolation pipe is achieved through the isolation pipe assembling assembly, and the phenomena of position deflection, instability and the like in the installation process are avoided.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is an exploded view of an angular positioning pressing block structure of an isolation tube in the embodiment of the invention;
FIG. 3 is a cross-sectional view of an angular guide block according to an embodiment of the present invention;
FIG. 4 is a schematic view of an angular guide block according to an embodiment of the present invention.
In the figure: 1. a support body; 2. an isolation pipe; 3. an isolation tube angular positioning pressing block; 31. an angular guide block; 311. an isolation tube observation hole; 32. a spring; 33. compressing the positioning shaft; 34. manufacturing a screw; 35. pressing the positioning shaft guide hole; 36. a spring mounting hole; 4. a piston skirt; 5. a guide body; 6. the chute is angularly positioned.
Detailed Description
The drawings in the embodiments of the invention will be incorporated below; the technical scheme in the embodiment of the invention is clearly and completely described; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments are based on the embodiments of the present invention; all other embodiments obtained by a person skilled in the art without making any inventive step are within the scope of protection of the present invention.
Referring to fig. 1 to 4, an isolation tube assembly for an oil inlet of a combined piston oil passage includes an isolation tube 2 and an isolation tube positioning assembly, where the isolation tube positioning assembly includes a support body 1 and a guide body 3 connected to the support body 1, and a piston skirt 4 is connected to a lower end surface of the support body 1; the guide body 3 is connected with an isolation tube angular positioning pressing block 3 used for setting the isolation tube 2, and one end of the isolation tube angular positioning pressing block 3 used for arranging the isolation tube 2 extends into the piston skirt 4.
As an alternative embodiment, the isolation tube 8 has a right-angled trapezoid structure with an inclined surface on one side.
As an optional embodiment, the isolation tube angular positioning pressing block 3 comprises a pressing positioning shaft 33 and an angular guide block 31 nested with the pressing positioning shaft 33, the lower end of the pressing positioning shaft 33 is provided with a spring 32, and the upper end of the pressing positioning shaft 33 is provided with a modified screw 34 for fixing the isolation tube angular positioning pressing block 3.
As an alternative embodiment, one end of the angular guide block 31 is provided with an angular positioning chute 6 for clamping and positioning the isolation tube 2, and the inclined surface of the isolation tube 2 is clamped on the inclined surface of the angular positioning chute 6.
As an optional embodiment, the angular guide block 31 further includes a pressing positioning shaft guide hole 35 for guiding and limiting the pressing positioning shaft 33; a spring mounting hole 36 for mounting the spring 32; the upper end face of the angular guide block 31 is also provided with a threaded hole for limiting the compression of the positioning shaft 33, and the modified screw 34 is connected with the threaded hole.
In an alternative embodiment, the side wall of the angular guide block 31 is further provided with an isolation tube observation hole 22 for observing the positioning condition of the end face of the isolation tube 8.
As an alternative embodiment, the piston skirt 10 is provided with a positioning hole, and the support body 1 is provided with a positioning pin, and the positioning hole and the positioning pin are used for enabling the support body to be matched with the piston skirt 10.
The invention provides an assembling method of an oil inlet hole isolation pipe assembly of a combined piston oil duct, which comprises the following steps:
s1, before assembly, the device is positioned by adopting one surface and two pins, and the support body 1 is in fit connection with the piston skirt 10 through the positioning pins; the lower end surface of the support body 1 is connected with a piston skirt 10;
s2, positioning an isolation tube 8, installing a non-inclined end of the isolation tube 8 on an installation opening part of an isolation tube 2 of the piston skirt 10, integrally installing an isolation tube angular positioning pressing block 3 into a guide groove in the middle of a guide body 5, and installing an inclined end surface of the isolation tube 2 on an inclined surface of an angular positioning chute 6 in an angular positioning guide block 31 on the isolation tube angular positioning pressing block 3; the isolation tube guide cylindrical surface 28 on the compression positioning shaft 33 is inserted into the inner hole of the isolation tube 8 to guide the isolation tube 2 to be vertical; checking the positioning condition of one end of the inclined surface of the isolation tube 2 through the isolation tube observation hole 311 on the phase guide block 31;
s3, pressing the isolation tube 8 in, extending a pressure rod into the upper hole of the pressing positioning shaft 33, and moving the pressing positioning shaft 33 downwards under the action of the pressure rod until the end face of the pressing positioning shaft 33 is contacted with the top end of the inclined surface of the isolation tube 2; and continuously applying the acting force until the isolation tube 8 is pressed into the mounting hole of the piston skirt 10, and when the upper end surface of the pressing positioning shaft 33 and the upper end surface of the guide body 5 form a plane, the isolation tube 2 cannot be continuously pressed due to blocking, thereby completing the assembly work of the isolation tube 2.
The invention has the following technical advantages:
(1) The assembly process method in the invention enables the press-in force to be more uniform and stable, avoids the damage to the surface of the assembly hole caused by the position deflection and instability of the isolation tube in the press-in process, and further avoids the generation of failure risks such as looseness, separation and the like caused by poor combination of the matching surfaces of the isolation tube, the positioning pin and the mounting hole after the assembly is finished;
(2) The assembly device controls the angular phase position of the isolation tube to have high precision, the angle error is less than or equal to 0.4 degrees, and the risk that the isolation tube cannot be assembled and scrapped due to interference with the piston top caused by the out-of-tolerance of the angular phase assembly position of the isolation tube is avoided;
(3) The assembly device controls the isolation tube to have high height position precision, the height error is less than or equal to 0.1, and the risk that the isolation tube and the elastic positioning pin are interfered with the piston top and cannot be assembled and scrapped due to the over-tolerance of the height positions is avoided;
(4) The assembly device is simple and flexible in clamping operation, and simple and rapid in action in the assembly process; therefore, the assembly time is short, the efficiency is high, and the method is suitable for a mass production mode;
(5) The assembly process method and the assembly device can change the original two-procedure completion work into one procedure to complete, thereby saving operators.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "fitted/connected", "connected", and the like, are to be interpreted broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The isolation pipe assembly for the oil inlet hole of the combined piston oil duct is characterized by comprising an isolation pipe (2) and an isolation pipe positioning assembly, wherein the isolation pipe positioning assembly comprises a support body (1) and a guide body (3) connected with the support body (1), and the lower end surface of the support body (1) is connected with a piston skirt (4); the guide body (3) is connected with an isolation tube angular positioning pressing block (3) used for arranging the isolation tube (2), and one end of the isolation tube angular positioning pressing block (3) used for arranging the isolation tube (2) extends into the piston skirt (4).
2. The combined piston gallery inlet spacer assembly of claim 1, wherein the spacer tube (8) is a right-angled trapezoid structure with an inclined surface on one side.
3. The combined piston oil gallery oil inlet hole isolation pipe assembly as claimed in claim 1, wherein the isolation pipe angular positioning pressing block (3) comprises a pressing positioning shaft (33) and an angular guide block (31) nested with the pressing positioning shaft (33), a spring (32) is arranged at the lower end of the pressing positioning shaft (33), and a modified screw (34) used for fixing the isolation pipe angular positioning pressing block (3) is arranged at the upper end of the pressing positioning shaft.
4. The combined piston oil gallery oil inlet hole isolation pipe assembly as claimed in claim 3, wherein one end of the angular guide block (31) is provided with an angular positioning chute (6) for clamping and positioning the isolation pipe (2), and the inclined surface of the isolation pipe (2) is clamped on the inclined surface of the angular positioning chute (6).
5. The combined piston oil gallery inlet spacer assembly of claim 3, wherein the angular guide block (31) further includes a compression positioning shaft guide hole (35) for guiding and limiting a compression positioning shaft (33); the spring mounting hole (36) is used for mounting the spring (32); the upper end face of the angular guide block (31) is also provided with a threaded hole for limiting the compression of the positioning shaft (33), and the modified screw (34) is connected with the threaded hole.
6. The combined piston oil gallery oil inlet hole isolation pipe assembly as claimed in claim 3, wherein the side wall of the angular guide block (31) is further provided with an isolation pipe observation hole (22) for observing the positioning condition of the end face of the isolation pipe (8).
7. The assembly of claim 1, wherein the piston skirt (10) is provided with positioning holes, and the support body (1) is provided with positioning pins, and the positioning holes and the positioning pins are used for enabling the support body to be matched with the piston skirt (10).
8. An assembling method of a combined piston oil gallery oil inlet hole isolation pipe assembly is realized based on the combined piston oil gallery oil inlet hole isolation pipe assembly as claimed in any one of claims 1 to 7, and is characterized by comprising the following steps:
s1, before assembly, the device is positioned by two pins on one side, and the support body (1) is in fit connection with the piston skirt (10) through a positioning pin; the lower end surface of the support body (1) is connected with the piston skirt (10);
s2, positioning an isolation tube (8), installing a non-inclined end of the isolation tube (8) on an installation opening part of the isolation tube (2) of the piston skirt (10), integrally installing an isolation tube angular positioning pressing block (3) into a guide groove in the middle of a guide body (5), and installing an inclined end surface of the isolation tube (2) on an inclined surface of an angular positioning chute (6) in an angular positioning guide block (31) at the upper corner of the isolation tube angular positioning pressing block (3); the guide cylindrical surface (28) of the isolation tube on the compression positioning shaft (33) is inserted into the inner hole of the isolation tube (8) to guide the isolation tube (2) to keep the isolation tube vertical; checking the positioning condition of one end of the inclined surface of the isolation tube (2) through an isolation tube observation hole (311) on the phase guide block (31);
s3, pressing the isolation pipe (8), extending a pressure lever into an upper hole of the pressing positioning shaft (33), and moving the pressing positioning shaft (33) downwards under the action of the pressure lever until the end face of the pressing positioning shaft (33) is contacted with the top end of the inclined surface of the isolation pipe (2); and continuously applying the acting force until the isolation tube (8) is pressed into the mounting hole of the piston skirt (10), and when the upper end surface of the pressing and positioning shaft (33) is in a plane with the upper end surface of the guide body (5), the isolation tube cannot be continuously pressed due to blocking, so that the assembly work of the isolation tube (2) is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211111136.0A CN115709449A (en) | 2022-09-13 | 2022-09-13 | Combined piston oil duct oil inlet hole isolation pipe assembly and assembling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211111136.0A CN115709449A (en) | 2022-09-13 | 2022-09-13 | Combined piston oil duct oil inlet hole isolation pipe assembly and assembling method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115709449A true CN115709449A (en) | 2023-02-24 |
Family
ID=85230658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211111136.0A Pending CN115709449A (en) | 2022-09-13 | 2022-09-13 | Combined piston oil duct oil inlet hole isolation pipe assembly and assembling method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115709449A (en) |
-
2022
- 2022-09-13 CN CN202211111136.0A patent/CN115709449A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105081750B (en) | The erecting device of spring in lubricating oil pump | |
| CN218504361U (en) | Combined piston oil duct oil inlet hole positioning pin assembly | |
| CN115709449A (en) | Combined piston oil duct oil inlet hole isolation pipe assembly and assembling method | |
| CN219113898U (en) | Oil inlet hole isolation pipe assembly of combined piston oil duct | |
| CN109514461A (en) | Multiple spot elastic pressuring clamping device for uneven face | |
| CN111855174A (en) | Valve bellows life-span test frock | |
| CN114576040B (en) | Coaxial adjustable pintle injector with flow positioning function and assembling method thereof | |
| CN208375190U (en) | A kind of bearing installing tool | |
| CN115256286A (en) | Combined piston oil duct oil inlet hole positioning pin assembly and assembling method | |
| CN110202345B (en) | AT clutch clamp spring assembly device and assembly method | |
| CN209239878U (en) | A kind of multiple spot elastic pressuring clamping device for uneven face | |
| CN111331342A (en) | Press mounting equipment | |
| CN111289357A (en) | Clamp device for vacuum high-temperature indentation creep test | |
| CN215296935U (en) | Mechanical life test clamp for corrugated pipe | |
| CN114800314B (en) | Pressing device for large end face of inner cavity of gourd-shaped part and using method | |
| CN221676356U (en) | Positioning tool in bearing assembly process | |
| CN114227585A (en) | Air pressure type plunger assembly spring pre-tightening force measuring and assembling device | |
| CN102009333B (en) | Self-aligning rivet-pressing adapter | |
| CN220660731U (en) | Piston ring guide installation tool | |
| CN212536636U (en) | Piston connecting rod of oil-free air compressor | |
| CN220561348U (en) | Testing arrangement is used in cylinder joint production | |
| CN217728453U (en) | Rotor assembly spring force measurement and assembly fixture | |
| CN216228014U (en) | Turbojet engine long cantilever intermediary cartridge receiver turning clamp | |
| CN217404410U (en) | Solenoid valve test fixture | |
| CN220575816U (en) | Linear control moves return spring installation frock |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |