CN111941342B - Right-angle rotatable oil nozzle assembly special tool and assembly method - Google Patents
Right-angle rotatable oil nozzle assembly special tool and assembly method Download PDFInfo
- Publication number
- CN111941342B CN111941342B CN202010844783.7A CN202010844783A CN111941342B CN 111941342 B CN111941342 B CN 111941342B CN 202010844783 A CN202010844783 A CN 202010844783A CN 111941342 B CN111941342 B CN 111941342B
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- oil inlet
- inlet nozzle
- nozzle
- special
- hole
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 229920002635 polyurethane Polymers 0.000 claims abstract description 80
- 239000004814 polyurethane Substances 0.000 claims abstract description 80
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 238000009966 trimming Methods 0.000 claims description 48
- 230000000149 penetrating effect Effects 0.000 claims description 31
- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 claims description 2
- 230000035515 penetration Effects 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims 2
- 230000000903 blocking effect Effects 0.000 claims 1
- 238000006748 scratching Methods 0.000 description 2
- 230000002393 scratching effect Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/38—Cutting-out; Stamping-out
- B26F1/3866—Cutting-out; Stamping-out specially adapted for rubber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/38—Cutting-out; Stamping-out
- B26F1/44—Cutters therefor; Dies therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Auxiliary Devices For Machine Tools (AREA)
Abstract
The right-angle rotatable oil nozzle assembly special tool is used for realizing the nondestructive assembly of the right-angle rotatable oil nozzle, and a polyurethane rod, a locking cap, a clamping sleeve and a taper hole sleeve are arranged in the right-angle rotatable oil nozzle assembly special tool; the polyurethane rod is clamped and fixed through the matching of the clamping sleeve, the taper hole sleeve and the locking cap, and one end of the polyurethane rod penetrates through the vertical inner hole of the oil inlet nozzle to enter the transverse inner hole; the locking cap is provided with an internal thread matched with the external thread on the oil inlet nozzle, and the locking cap is assembled with the oil inlet nozzle in a threaded connection mode; the clamping sleeve and the taper hole sleeve are arranged inside the locking cap and clamped between the oil inlet nozzle and the locking cap. The invention effectively avoids the phenomenon that the sealing ring is sheared and scratched in the process of assembling the oil inlet nozzle and the oil passing half shaft, and achieves the purposes of ensuring the sealing performance of the sealing ring and ensuring the safe flight of the aircraft.
Description
Technical Field
The invention relates to an assembly tool and an assembly method of a glib in a hydraulic system, in particular to a special assembly tool and an assembly method for preventing sharp corners of an orifice in the glib from shearing and scratching a sealing ring in the assembly process of a right-angle rotatable glib.
Background
The right-angle rotatable oil nozzle is an important component in the hydraulic control system of the aircraft, and can realize 90-degree sharp turn of the oil path, and the occupied space is small, and particularly, the flexible connection mode of the right-angle rotatable oil nozzle greatly reduces the stress damage of the oil path caused by vibration, so the right-angle rotatable oil nozzle is widely applied to the hydraulic control system of the aircraft. As shown in figures 1 to 3, a right-angle rotatable oil nozzle in an aircraft hydraulic control system consists of an oil inlet nozzle 1, an oil passing half shaft 2, a sealing ring 3 and a clamping ring 4, wherein the oil inlet nozzle 1 is provided with an inner hole which is transversely and vertically penetrated, and an intersecting line sharp angle 1-1 is formed at the intersection of the transverse inner hole 1-3 and the vertical inner hole 1-2.
When the right-angle rotatable oil nozzle is assembled, the transverse inner hole 1-3 of the oil inlet nozzle 1 is required to be sleeved outside the closed end of the oil passing half shaft 2, and the sealing ring 3 is very easy to shear and scratch due to the fact that the intersecting line sharp angle 1-1 of the inner hole opening of the oil inlet nozzle 1 is in the assembling process with the oil passing half shaft 2, the sealing performance of the sealing ring 3 can be reduced after the assembling process is carried out, and oil can be polluted due to the fact that burrs of rubber parts formed by scratching and shearing the sealing ring 3 directly affect the safety performance of an aircraft.
Disclosure of Invention
The invention provides a special tool for assembling a right-angle rotatable oil nozzle and an assembling method, and aims to solve the problem that a sealing ring is sheared and scratched in the assembling process of the right-angle rotatable oil nozzle, and achieve the purposes of ensuring the sealing performance of the sealing ring and ensuring the safe flight of an aircraft.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a right-angle rotatable oil nozzle assembly special tool is used for avoiding damage to a sealing ring by sharp corners of an inner orifice of the oil nozzle in the right-angle rotatable oil nozzle assembly process, and comprises a polyurethane rod, a locking cap, a clamping sleeve and a taper hole sleeve; the polyurethane rod is clamped and fixed through the matching of the clamping sleeve, the taper hole sleeve and the locking cap, and one end of the polyurethane rod penetrates through the vertical inner hole of the oil inlet nozzle to enter the transverse inner hole; the locking cap is provided with an internal thread matched with the external thread on the oil inlet nozzle, and the locking cap is assembled with the oil inlet nozzle in a threaded connection mode; the clamping sleeve and the taper hole sleeve are arranged inside the locking cap and clamped between the oil inlet nozzle and the locking cap.
The right-angle rotatable choke assembly special tool is characterized in that the outer surface of the clamping sleeve is a conical surface, a group of axially-through grooves are formed in the side wall of the clamping sleeve, and one groove is radially communicated with an inner hole of the clamping sleeve.
Above-mentioned right angle rotatable glib assembly specialized tool, taper hole cover inner wall comprises first taper hole and second taper hole two parts, and wherein first taper hole is laminated with clamping sleeve conical surface, and second taper hole is laminated with oil feed mouth conical end face.
The right-angle rotatable oil nozzle assembly special tool is also provided with a guide sleeve pipe, and the guide sleeve pipe is embedded in a vertical inner hole of the oil inlet nozzle; the polyurethane rod is sleeved in the guide sleeve.
The right-angle rotatable oil nozzle assembly special tool is also provided with a special cutting tool; the special cutting tool is a sleeve countersink with the same outer diameter size as the oil-passing half shaft, and consists of a holding part and a cutting part, wherein the cutting part of the special cutting tool is provided with an axially arranged unloading hole and a polyurethane rod penetrating hole which is perpendicular to the unloading hole, and the periphery of the polyurethane rod penetrating hole is provided with a cutting edge.
The right-angle rotatable oil nozzle assembly special tool is characterized in that the polyurethane rod penetrating holes of the special cutting tool are square holes penetrating in the radial direction, and cutting edges are arranged on the peripheries of the upper end and the lower end of the polyurethane rod penetrating holes.
The right-angle rotatable oil nozzle assembly special tool is also provided with a special trimming cutter; the special trimming cutter is a sleeve countersink with the same outer diameter size as the oil-passing half shaft, and consists of a holding part and a trimming part, wherein the trimming part is provided with a chip collecting hole which is axially arranged and a trimming surface which is obliquely arranged, and the periphery of the upper part of the trimming surface is provided with a trimming cutting edge.
A right-angle rotatable oil nozzle assembly method is characterized in that a polyurethane rod is embedded into a vertical inner hole of an oil inlet nozzle, the polyurethane rod is stretched into a transverse inner hole of the oil inlet nozzle at an inner hole opening of the oil inlet nozzle to be partially cut, and then a continuous smooth arc surface is formed between a cutting surface of the polyurethane rod and a hole wall of the transverse inner hole of the oil inlet nozzle through trimming, so that the damage of sharp corners at the inner hole opening of the oil inlet nozzle and an oil passing half shaft to a sealing ring during the assembly of the oil inlet nozzle is avoided, and the concrete operation steps are as follows:
a. penetrating a special cutting tool with a polyurethane rod penetrating hole into a transverse inner hole of the oil inlet nozzle, so that the polyurethane rod penetrating hole of the special cutting tool is communicated with a vertical inner hole of the oil inlet nozzle;
b. embedding the polyurethane rod into a vertical inner hole of the oil nozzle by utilizing a right-angle rotatable oil nozzle assembly special tool, wherein one end of the polyurethane rod extends into a polyurethane rod penetrating hole of a special cutting tool;
c. cutting the polyurethane rod through the cutting edges at the left side and the right side of the polyurethane rod penetrating hole, rotating the special cutting tool, and completely cutting off the part of the polyurethane rod extending into the transverse inner hole of the oil inlet nozzle through the cutting edges at the front side and the rear side of the polyurethane rod penetrating hole;
d. withdrawing the special cutting tool from the transverse inner hole of the oil inlet nozzle;
e. penetrating a special trimming cutter from one end of a transverse inner hole of the oil inlet nozzle, and trimming the cut surface of the polyurethane rod through axial movement of the special trimming cutter;
f. the special trimming cutter is withdrawn from the transverse inner hole of the oil inlet nozzle, and then penetrates into the transverse inner hole of the oil inlet nozzle from the other end of the transverse inner hole of the oil inlet nozzle, and the cutting surface of the polyurethane rod is trimmed through the axial movement of the special trimming cutter;
g. and the special trimming cutter is withdrawn from the transverse inner hole of the oil inlet nozzle, the oil inlet nozzle and the oil passing half shaft are assembled, and the oil inlet nozzle is axially positioned through the mounting retainer ring, so that the right-angle rotatable oil nozzle is assembled.
In the above right-angle rotatable nozzle tip assembly method, in the step b, a polyurethane rod with a diameter matched with the diameter of the vertical inner hole orifice of the oil inlet nozzle is selected.
In the above assembling method of the right-angle rotatable oil nozzle, in the step g, the special tool is removed after the assembling of the right-angle rotatable oil nozzle is completed, and then the polyurethane rod is taken out from the vertical inner hole of the oil inlet nozzle.
The invention provides a right-angle rotatable oil nozzle assembly special tool and an assembly method, when an oil inlet nozzle and an oil passing half shaft are assembled, a polyurethane rod with the same diameter size as the vertical inner hole of the oil inlet nozzle can be filled into the vertical inner hole of the oil inlet nozzle through the special tool and clamped and fixed, then a sleeve countersink with the same outer diameter size as the oil passing half shaft is inserted into the transverse inner hole of the oil inlet nozzle to cut off redundant polyurethane rod, so that the cut-off surface of the polyurethane rod and the transverse inner hole of the oil inlet nozzle form an identical arc surface, and then the cut-off surface of the polyurethane rod is trimmed through a special trimming cutter, so that the problem that a sealing ring is sheared and scratched in the assembling process of the oil inlet nozzle and the oil passing half shaft is solved, and the purposes of ensuring the sealing performance of the sealing ring and the safe flight of an aircraft are achieved.
Drawings
FIG. 1 is a schematic cross-sectional view of a right angle rotatable nozzle according to the present invention;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a schematic view of a seal ring with sharp corners sheared and scratched in an inner hole of an oil inlet nozzle when the right-angle rotatable oil nozzle is assembled;
FIG. 4 is a schematic cross-sectional view of a right angle rotatable nozzle tip assembly specific tool;
FIG. 5 is a schematic view of the cross-sectional structure A-A of FIG. 4;
FIG. 6 is a schematic view of the taper hole cover in FIG. 4;
FIG. 7 is a schematic view of the clamping sleeve structure of FIG. 4;
FIG. 8 is a top view of FIG. 7;
FIG. 9 is a schematic view of the special cutting tool configuration of FIG. 4;
FIG. 10 is a cross-sectional view of the structure B-B in FIG. 9;
FIG. 11 is a schematic view of a special purpose finishing tool configuration;
FIG. 12 is a top view of FIG. 11;
FIG. 13 is a schematic illustration of the operation of the special cutting tool;
fig. 14 is a schematic diagram of the operation of the special purpose trimming tool.
The list of the reference numerals in the drawings is:
1. 1-1 parts of oil inlet nozzle, 1-2 parts of sharp corners, 1-3 parts of vertical inner holes and 1-3 parts of transverse inner holes; 2. Oil-passing half shafts; 3. A seal ring; 4. A collar; 5. A polyurethane rod; 6. A locking cap; 7. a taper hole sleeve 7-1, a first taper hole sleeve 7-2 and a second taper hole sleeve; 8. A guide sleeve; 9. a clamping sleeve, 9-1, a notch, 9-2 and an inner hole of the clamping sleeve; 10. 10-1 parts of special cutting tools, 10-2 parts of polyurethane rod penetrating holes, 10-3 parts of cutting edges and discharge holes; 11. a special trimming cutter, 11-1, a chip collecting hole, 11-2, a trimming surface, 11-3 and a trimming cutting edge.
Detailed Description
The invention provides a right-angle rotatable oil nozzle assembly special tool and an assembly method, and the special tool and the assembly method are further described below with reference to the accompanying drawings and specific embodiments.
Referring to fig. 4 and 5, the right-angle rotatable choke assembly special tool comprises a polyurethane rod 5, a locking cap 6, a clamping sleeve 9, a taper hole sleeve 7 and a guide sleeve pipe 8; the polyurethane rod 5 is clamped and fixed by matching the clamping sleeve 9, the taper hole sleeve 7 and the locking cap 6, and one end of the polyurethane rod passes through the vertical inner hole 1-2 of the oil inlet nozzle 1 and enters the transverse inner hole 1-3; the locking cap 6 is provided with an internal thread matched with an external thread on the oil inlet nozzle, and the locking cap 6 is assembled with the oil inlet nozzle 1 in a threaded connection mode; the clamping sleeve 9 and the taper hole sleeve 7 are arranged inside the locking cap 6 and clamped between the oil inlet nozzle 1 and the locking cap 6; the guide sleeve pipe 8 is embedded in the vertical inner hole 1-2 of the oil inlet nozzle 1, and the polyurethane rod 5 is sleeved in the guide sleeve pipe 8.
Referring to fig. 4, 5, 7 and 8, in the special tool for assembling a right-angle rotatable oil nozzle, the outer surface of the clamping sleeve 9 is a conical surface, a group of axially-through slots 9-1 are arranged on the side wall of the clamping sleeve 9, and one slot is radially communicated with the inner hole 9-2 of the clamping sleeve.
Referring to fig. 4, 5 and 6, in the special tool for assembling a right-angle rotatable oil nozzle of the present invention, the inner wall of the taper hole sleeve 7 is composed of a first taper hole 7-1 and a second taper hole 7-2, wherein the first taper hole 7-1 is attached to the taper surface of the clamping sleeve 9, the second taper hole 7-2 is attached to the taper surface of the oil inlet nozzle 1, and an external thread matched with the internal thread of the locking cap is provided on the outer wall of the taper hole sleeve 7. After the locking cap 6, the oil inlet nozzle 1 and the taper hole sleeve 7 are screwed in place through the threaded connection structure, the clamping sleeve 9 clamps and fixes the polyurethane rod 5 through elastic deformation at the notch 9-1 under the extrusion action of the locking cap 6 and the taper hole sleeve 7.
Referring to fig. 4, 5, 9 and 10, the right-angle rotatable nozzle assembly special tool of the invention is also provided with a special cutting tool 10; the special cutting tool 10 is a sleeve countersink with the same outer diameter size as the oil passing half shaft 2, and consists of a holding part and a cutting part, wherein the cutting part is provided with an axially arranged unloading hole 10-3 and a polyurethane rod penetrating hole 10-1 which is vertically arranged with the unloading hole 10-1, the polyurethane rod penetrating hole 10-1 of the special cutting tool 10 is penetrated in the radial direction, and cutting edges 10-2 are arranged on the peripheries of the upper end and the lower end of the polyurethane rod penetrating hole.
Referring to fig. 4, 5, 11 and 12, the right-angle rotatable nozzle assembly special tool of the invention is also provided with a special trimming cutter 11; the special trimming cutter 11 is a sleeve countersink with the same outer diameter size as the oil passing half shaft 2, and consists of a holding part and a trimming part, wherein the trimming part is provided with a chip collecting hole 11-1 which is axially arranged and a trimming surface 11-2 which is obliquely arranged, and the upper periphery of the trimming surface 11-2 is provided with a trimming cutting edge 11-3.
Referring to fig. 13 and 14, the assembling method of the right-angle rotatable oil nozzle according to the invention is characterized in that a polyurethane rod 5 is embedded in a vertical inner hole 1-2 of an oil inlet nozzle 1, a part of the polyurethane rod 5 extending into a transverse inner hole 1-3 of the oil inlet nozzle 1 is cut off at an inner hole opening of the oil inlet nozzle, and a continuous smooth arc surface is formed between a cut surface of the polyurethane rod 5 and a hole wall of the transverse inner hole 1-3 of the oil inlet nozzle 1 by trimming, so that the damage to a sealing ring 3 caused by a sharp angle 1-1 at the inner hole opening of the oil inlet nozzle 1 and an oil passing half shaft 2 during the assembling is avoided, and the concrete operation steps are as follows:
a. penetrating a special cutting tool 10 with a polyurethane rod penetrating hole 10-1 into a transverse inner hole 1-3 of the oil inlet nozzle 1, so that the polyurethane rod penetrating hole 10-1 is communicated with a vertical inner hole 1-2 of the oil inlet nozzle 1;
b. selecting a polyurethane rod 5 with the diameter size matched with the diameter size of the orifice of the vertical inner hole 1-2 of the oil inlet nozzle 1, embedding the polyurethane rod 5 into the vertical inner hole 1-2 of the oil inlet nozzle 1 by utilizing a right-angle rotatable oil nozzle assembly special tool, and enabling one end of the polyurethane rod 5 to extend into the polyurethane rod penetration hole 10-1 of the special cutting tool 10;
c. the special cutting tool 10 is pushed and pulled in a reciprocating manner, the polyurethane rod 5 is cut through the cutting edges at the left side and the right side of the polyurethane rod penetrating hole 10-1, then the special cutting tool 10 is rotated, and the part of the polyurethane rod extending into the transverse inner hole 1-1 of the oil inlet nozzle is completely cut through the cutting edges at the front side and the rear side of the polyurethane rod penetrating hole 10-1;
d. withdrawing the special cutting tool 10 from the transverse inner hole 1-3 of the oil inlet nozzle 1;
e. penetrating a special trimming cutter 11 from one end of a transverse inner hole 1-3 of the oil inlet nozzle 1, and trimming the cut surface of the polyurethane rod 5 through axial movement of the special trimming cutter 11;
f. the special trimming cutter 11 is withdrawn from the transverse inner hole 1-3 of the oil inlet nozzle 1, and then penetrates through the other end of the transverse inner hole 1-3 of the oil inlet nozzle 1, and the cutting surface of the polyurethane rod 5 is trimmed through the axial movement of the special trimming cutter 11;
g. the special trimming cutter 11 is withdrawn from the transverse inner hole 1-3 of the oil inlet nozzle 1, the oil inlet nozzle 1 and the oil passing half shaft 2 are assembled, the oil inlet nozzle 1 is axially positioned through the mounting retainer ring 4, the assembly of the right-angle rotatable oil nozzle is completed, then the special tool is removed, and the polyurethane rod 5 is taken out from the vertical inner hole 1-2 of the oil inlet nozzle 1.
Claims (9)
1. The special tool for assembling the right-angle rotatable oil nozzle is used for blocking and trimming an inner orifice of the oil inlet nozzle (1) in the process of assembling the right-angle rotatable oil nozzle, and is characterized by comprising a polyurethane rod (5), a locking cap (6), a clamping sleeve (9) and a taper hole sleeve (7); the polyurethane rod (5) is clamped and fixed by matching the clamping sleeve (9), the taper hole sleeve (7) and the locking cap (6), and one end of the polyurethane rod penetrates through the vertical inner hole (1-2) of the oil inlet nozzle (1) and enters the transverse inner hole (1-3); the locking cap (6) is provided with an internal thread matched with an external thread on the oil inlet nozzle, and the locking cap (6) is assembled with the oil inlet nozzle (1) in a threaded connection mode; the clamping sleeve (9) and the taper hole sleeve (7) are arranged inside the locking cap (6) and clamped between the oil inlet nozzle (1) and the locking cap (6);
it is also provided with a special cutting tool (10); the special cutting tool (10) is a sleeve countersink with the same outer diameter size as the oil passing half shaft (2), and consists of a holding part and a cutting part, wherein the cutting part of the special cutting tool is provided with an axially arranged discharging hole (10-3) and a polyurethane rod penetrating hole (10-1) which is perpendicular to the discharging hole (10-3), and the periphery of the polyurethane rod penetrating hole (10-1) is provided with a cutting edge (10-2).
2. The right-angle rotatable nozzle tip assembling special tool according to claim 1, wherein the outer surface of the clamping sleeve (9) is a conical surface, a group of axially-through slots (9-1) are formed in the side wall of the clamping sleeve (9), and one slot is radially communicated with the inner hole (9-2) of the clamping sleeve.
3. The right-angle rotatable nozzle tip assembly special tool according to claim 2, wherein the inner wall of the taper hole sleeve (7) consists of a first taper hole (7-1) and a second taper hole (7-2), wherein the first taper hole (7-1) is jointed with the conical surface of the clamping sleeve (9), and the second taper hole (7-2) is jointed with the conical surface of the oil inlet nozzle (1).
4. A right angle rotatable nozzle tip assembly special tool according to claim 3, characterized in that it is further provided with a guide sleeve (8), said guide sleeve (8) being embedded in the vertical inner bore (1-2) of the nozzle tip (1); the polyurethane rod (5) is sleeved in the guide sleeve (8).
5. The right-angle rotatable nozzle assembly special tool according to claim 1, wherein the polyurethane rod penetration hole (10-1) of the special cutting tool (10) is penetrated in the radial direction, and cutting edges (10-2) are provided at the circumferences of both upper and lower ends thereof.
6. The right angle rotatable nozzle assembly special tool according to claim 5, characterized in that it is further provided with a special trimming tool (11); the special trimming cutter (11) is a sleeve countersink with the same outer diameter size as the oil-passing half shaft (2), and consists of a holding part and a trimming part, wherein the trimming part is provided with a chip collecting hole (11-1) which is axially arranged and a trimming surface (11-2) which is obliquely arranged, and the periphery of the trimming surface (11-2) is provided with a trimming cutting edge (11-3).
7. The right-angle rotatable oil nozzle assembly method adopts the right-angle rotatable oil nozzle assembly special tool as claimed in any one of claims 1 to 6, and is characterized in that the polyurethane rod (5) is embedded into the vertical inner hole (1-2) of the oil inlet nozzle (1), the part of the polyurethane rod (5) extending into the transverse inner hole (1-3) of the oil inlet nozzle (1) is cut off at the inner hole opening of the oil inlet nozzle, and then the cut surface of the polyurethane rod (5) and the hole wall of the transverse inner hole (1-3) of the oil inlet nozzle (1) form a continuous smooth arc surface through trimming, so that the damage to the sealing ring (3) caused by the sharp angle (1-1) at the inner hole opening of the oil inlet nozzle (1) and the oil passing half shaft (2) is avoided, and the concrete operation steps are as follows:
a. penetrating a special cutting tool (10) with a polyurethane rod penetrating hole (10-1) into a transverse inner hole (1-3) of the oil inlet nozzle (1), so that the polyurethane rod penetrating hole (10-1) is communicated with a vertical inner hole (1-2) of the oil inlet nozzle (1);
b. embedding a polyurethane rod (5) into a vertical inner hole (1-2) of the oil nozzle (1) by using a special tool for preventing sharp corners of the inner hole opening of the oil nozzle from damaging a sealing ring, wherein one end of the polyurethane rod (5) stretches into the polyurethane rod penetrating hole (10-1) of a special cutting tool (10);
c. a special cutting tool (10) is pushed and pulled in a reciprocating manner, the polyurethane rod (5) is cut through the cutting edges at the left side and the right side of the polyurethane rod penetrating hole (10-1), then the special cutting tool (10) is rotated, and the part of the polyurethane rod extending into the transverse inner hole (1-3) of the oil inlet nozzle is completely cut through the cutting edges at the front side and the rear side of the polyurethane rod penetrating hole (10-1);
d. withdrawing the special cutting tool (10) from the transverse inner hole (1-3) of the oil inlet nozzle (1);
e. penetrating a special trimming cutter (11) from one end of a transverse inner hole (1-3) of the oil inlet nozzle (1), and trimming the cut surface of the polyurethane rod (5) through axial movement of the special trimming cutter (11);
f. the special trimming cutter (11) is withdrawn from the transverse inner hole (1-3) of the oil inlet nozzle (1), and then penetrates into the transverse inner hole (1-3) of the oil inlet nozzle (1) from the other end of the transverse inner hole, and the cutting surface of the polyurethane rod (5) is trimmed through the axial movement of the special trimming cutter (11);
g. the special trimming cutter (11) is withdrawn from the transverse inner hole (1-3) of the oil inlet nozzle (1), the oil inlet nozzle (1) is assembled with the oil passing half shaft (2), and the oil inlet nozzle (1) is axially positioned through the mounting retainer ring (4), so that the right-angle rotatable oil inlet nozzle is assembled.
8. The right angle rotatable nozzle assembly method according to claim 7, wherein in said step b, a polyurethane rod (5) is selected which matches the diameter size at the orifice of the vertical bore (1-2) of the oil inlet nozzle (1).
9. The assembling method of the right-angle rotatable nozzle according to claim 7, wherein in the step g, the special tool is removed after the assembling of the right-angle rotatable nozzle is completed, and the polyurethane rod (5) is taken out from the vertical inner hole (1-2) of the oil inlet nozzle (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010844783.7A CN111941342B (en) | 2020-08-20 | 2020-08-20 | Right-angle rotatable oil nozzle assembly special tool and assembly method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010844783.7A CN111941342B (en) | 2020-08-20 | 2020-08-20 | Right-angle rotatable oil nozzle assembly special tool and assembly method |
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| Publication Number | Publication Date |
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| CN111941342A CN111941342A (en) | 2020-11-17 |
| CN111941342B true CN111941342B (en) | 2024-02-09 |
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| CN113858332B (en) * | 2021-10-22 | 2024-01-26 | 广东喜珍电路科技有限公司 | Method for automatically mounting pins on formed PCB with large typesetting size |
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| CN111941342A (en) | 2020-11-17 |
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