CN115070455A - Drilling jig for motor end cover and drilling process - Google Patents
Drilling jig for motor end cover and drilling process Download PDFInfo
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- CN115070455A CN115070455A CN202210937080.8A CN202210937080A CN115070455A CN 115070455 A CN115070455 A CN 115070455A CN 202210937080 A CN202210937080 A CN 202210937080A CN 115070455 A CN115070455 A CN 115070455A
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- end cover
- bottom plate
- motor end
- drilling
- vertical frame
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- 238000005553 drilling Methods 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000003825 pressing Methods 0.000 claims description 13
- 238000005520 cutting process Methods 0.000 claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 229910052802 copper Inorganic materials 0.000 claims description 10
- 239000010949 copper Substances 0.000 claims description 10
- 238000003754 machining Methods 0.000 claims description 7
- 210000004907 gland Anatomy 0.000 claims description 6
- 229910001315 Tool steel Inorganic materials 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 210000003734 kidney Anatomy 0.000 claims 2
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 229910001060 Gray iron Inorganic materials 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B35/00—Methods for boring or drilling, or for working essentially requiring the use of boring or drilling machines; Use of auxiliary equipment in connection with such methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/04—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part adjustable in inclination
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The invention relates to a drill jig for a motor end cover and a drilling process. The invention comprises a bottom frame, wherein the bottom frame comprises a transverse frame and a vertical frame which are vertical to each other; one end of the adjustable bottom plate is rotatably connected to the vertical frame, an included angle is formed between the side end of the vertical frame and the adjustable bottom plate, and the adjustable bottom plate is provided with a mounting surface for mounting a motor end cover workpiece; one end of the arc-shaped scale plate is connected to the side end of the adjustable bottom plate, and the other end of the arc-shaped scale plate is connected to the side end of the vertical frame in a sliding manner; one end of the pointer is movably connected to the side end of the adjustable bottom plate, and the other end of the pointer points to the scales of the scale plate; the adjusting component comprises a spherical base and an adjusting spherical screw, and the adjusting spherical screw is rotatably connected to the underframe and a ball head at one end of the adjusting spherical screw is connected to the underframe through the spherical base. According to the invention, by arranging the pointer and adjusting the spherical screw, the angle of the motor end cover workpiece can be visually observed and flexibly adjusted, the accuracy of the drilling position degree is improved, the drilling process of the motor end cover workpiece is convenient, and the efficiency is improved.
Description
Technical Field
The invention relates to the technical field of motor end cover processing, in particular to a drill jig for a motor end cover and a drilling process.
Background
At present, an end cover of a motor (such as a motor H280-355 series) is provided with an angle hole, and when related drilling operation is carried out, the holes are drilled after a workpiece is scribed, positioned and fixed on a workbench of a drilling machine by using tools such as bolts, an angle backing plate, a pressure plate and the like. Because the backing plate is the inclined backing plate, the material of end cover is grey mouth foundry goods mostly, skids very easily, brings very big work load and certain potential safety hazard for the operative employee. In addition, when the workpieces need to be processed in a large batch, when an operator processes a drill hole with a certain angle, the error of the position degree of the drill hole is relatively large, and the labor intensity is increased.
Disclosure of Invention
In order to solve the technical problems, the invention provides the drill jig for the motor end cover and the drilling process, which improve the machining precision of the motor end cover workpiece during inclined hole drilling and the integral clamping speed in the positioning and clamping hole process, reduce the labor intensity of operators during specific work, and improve the safety and the production efficiency.
In order to solve the above technical problem, the present invention provides a drill jig for a motor end cover, including:
the base frame comprises a transverse frame and a vertical frame which are vertical to each other;
one end of the adjustable bottom plate is rotatably connected to the vertical frame, an included angle is formed between the side end of the vertical frame and the adjustable bottom plate, and the adjustable bottom plate is provided with a mounting surface for mounting a motor end cover workpiece;
one end of the arc-shaped scale plate is connected to the side end of the adjustable bottom plate, and the other end of the arc-shaped scale plate is connected to the side end of the vertical frame in a sliding manner;
one end of the pointer is movably connected to the side end of the adjustable bottom plate, and the other end of the pointer points to the scales of the scale plate;
the adjusting component comprises a spherical base and an adjusting spherical screw, wherein the adjusting spherical screw is rotatably connected to the bottom frame, and a ball head at one end of the adjusting spherical screw is connected to the bottom frame through the spherical base.
In one embodiment of the invention, the motor end cover further comprises a waist hole limiting block connected to the cross frame, and the waist hole limiting block is provided with a plurality of rabbets used for abutting against the lower end of the motor end cover workpiece.
In one embodiment of the invention, the device further comprises a rotating shaft, and one end of the adjustable bottom plate is rotatably connected to the vertical frame through the rotating shaft.
In an embodiment of the invention, an arc-shaped groove is formed in one side of the scales in the arc-shaped scale plate, and a first socket head cap screw arranged in the arc-shaped groove is connected to the side end of the vertical frame.
In an embodiment of the invention, the adjustable base plate further comprises a pointer pin shaft and a gasket, wherein one end of the pointer is rotatably connected to the side end of the adjustable base plate through the pointer pin shaft, and the gasket is arranged between one end of the pointer and the side end of the adjustable base plate.
In one embodiment of the invention, the adjusting assembly further comprises a hollow shaft, a rotatable shaft seat, a copper nut and a hand wheel, the hollow shaft is connected to the vertical frame, the rotatable shaft seat is connected to the hollow shaft, the copper nut is connected to the rotatable shaft seat, the adjusting ball-type screw is connected to the copper nut, and the other end of the adjusting ball-type screw is connected to the hand wheel.
In an embodiment of the invention, the device further comprises a half gland, the spherical base is provided with an inner spherical surface, and the half gland is connected to the spherical base through a second inner hexagon screw.
In one embodiment of the invention, the motor end cover further comprises an opening pressing plate and an outer hexagon bolt, wherein the opening pressing plate is arranged at the upper end of the motor end cover workpiece and is connected to the adjustable bottom plate through the outer hexagon bolt.
The invention also provides a drilling process for the motor end cover, which comprises the drilling jig for the motor end cover, and the drilling steps are as follows:
s1: attaching an assembly surface of a motor end cover workpiece needing drilling to an installation surface of an adjustable bottom plate by using a crane, wherein the lower end of the motor end cover workpiece is abutted against a corresponding seam allowance in a waist hole limiting block, and the upper end of the motor end cover workpiece is fixedly arranged on a vertical frame through an opening pressing plate and an outer hexagon bolt;
s2: the spherical screw is adjusted through rotation of a hand wheel, the angle between the adjustable bottom plate and the side end of the vertical frame is adjusted, the pointer points to the corresponding angle position on the arc-shaped scale plate, and the waist hole limiting block is fixed on the transverse frame through a fixing screw;
s3: adjusting the axis of a drill bit on the cross arm of the drilling machine to be parallel to the axis of the pointer, and drilling an angle hole on the circumferential surface of the motor end cover workpiece; the drill bit is high-speed tool steel or alloy tool steel, the drill bit adopts a corresponding cast iron gang drill, the diameter of the drill bit is 5-15mm, a straight shank drill chuck is adopted, the lifting speed of a cross arm of the drilling machine is 1.27-2.0m/min, and the rotation angle is 360 degrees; the depth of the drilling hole is 1-120 mm;
s4: when in rough and finish machining, the feed amount is 0.32 +/-0.01 mm; the cutting speed is 17 +/-1 m/min; the rotating speed is 450 +/-10 r/min;
s5: when in rough and finish machining cutting, the feed amount is 0.17 +/-0.01 mm; the cutting speed is 15 +/-1 m/min; the rotating speed is 320 +/-10 r/min;
s6: when reaming, the feed amount is 0.2 +/-0.01 mm; the cutting speed is 18 +/-1 m/min; the rotating speed is 420 +/-10 r/min.
In one embodiment of the invention, the angle between the adjustable floor and the side ends of the uprights is in the range of 0-30 °.
Compared with the prior art, the technical scheme of the invention has the following advantages:
according to the drilling jig for the motor end cover and the drilling process, the pointer and the adjusting spherical screw are arranged, so that the angle of the motor end cover workpiece can be visually observed and flexibly adjusted in the workpiece adjusting process, the accuracy of the drilling position degree is improved, the drilling process of the motor end cover workpiece is convenient, and the efficiency is improved.
Drawings
In order that the present disclosure may be more readily and clearly understood, reference is now made to the following detailed description of the embodiments of the present disclosure taken in conjunction with the accompanying drawings, in which
Fig. 1 is a schematic view of the whole structure of the drill jig for the motor end cover of the present invention.
Fig. 2 is a view in the direction a of fig. 1.
The specification reference numbers indicate: 1. drilling a cross arm; 2. a drill bit; 3. a motor end cover workpiece; 4. riveting; 5. a second socket head cap screw; 6. half pressing covers; 7. a spherical base; 8. a waist hole limiting block; 9. a chassis; 9a, a transverse frame; 9b, a vertical frame; 10. an adjustable base plate; 11. a pointer pin shaft; 12. a rotating shaft; 13. a pointer; 14. an arc-shaped scale plate; 15. adjusting the spherical screw; 16. a first socket head cap screw; 17. a rotatable shaft base; 18. a third socket head cap screw; 19. a copper nut; 20. a hand wheel; 21. a thin nut; 22. a flat bond; 23. a round nut; 24. a limiting sheet; 25. a cotter pin; 26. a gasket; 27. a gasket; 28. a fourth socket head cap screw; 29. an opening pressing plate; 30. an outer hexagon bolt; 31. a hollow shaft; 32. and fixing the screw.
Detailed Description
The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.
Referring to fig. 1 to 2, a drill jig for a motor end cover according to the present invention includes:
the chassis 9 comprises a cross frame 9a and a vertical frame 9b which are perpendicular to each other;
one end of the adjustable bottom plate 10 is rotatably connected to the vertical frame 9b, an included angle is formed between the side end of the vertical frame 9b and the adjustable bottom plate 10, and the adjustable bottom plate 10 is provided with a mounting surface for mounting the motor end cover workpiece 3;
one end of the arc-shaped scale plate 14 is connected to the side end of the adjustable bottom plate 10, and the other end of the arc-shaped scale plate 14 is slidably connected to the side end of the vertical frame 9 b;
one end of the pointer 13 is movably connected to the side end of the adjustable bottom plate 10, and the other end of the pointer 13 points to the scale of the scale plate;
the adjusting component comprises a spherical base 7 and an adjusting spherical screw rod 15, wherein the adjusting spherical screw rod 15 is rotatably connected to the bottom frame 9, and a ball head at one end of the adjusting spherical screw rod 15 is connected to the bottom frame 9 through the spherical base 7.
Specifically, still including connecting in the waist hole stopper 8 of crossbearer 9a, waist hole stopper 8 is equipped with a plurality of tang (each tang corresponds the specification of different motor end cover work pieces 3) that are used for propping up with motor end cover work piece 3 lower extreme.
Specifically, the adjustable bottom plate 10 further comprises a rotating shaft 12, and one end of the adjustable bottom plate is rotatably connected to the vertical frame 9b through the rotating shaft 12. One end of the rotating shaft 12 is connected with a split pin 25, and a limiting piece 24 is arranged between the split pin 25 and the side end of the vertical frame 9 b.
Specifically, an arc-shaped groove is formed in one side of the scales in the arc-shaped scale plate 14, and a first hexagon socket head cap screw 16 arranged in the arc-shaped groove is connected to the side end of the vertical frame 9 b.
Specifically, the adjustable pointer comprises a pointer pin shaft 11 and a gasket 26, wherein one end of the pointer 13 is rotatably connected to the side end of the adjustable bottom plate 10 through the pointer pin shaft 11, the gasket 26 is arranged between one end of the pointer 13 and the side end of the adjustable bottom plate 10, and the thickness of the gasket 26 is larger than that of the arc-shaped scale plate 14, so that the pointer 13 is ensured to move freely without any damping.
Specifically, the adjusting assembly further comprises a hollow shaft 31, a rotatable shaft seat 17, a copper nut 19 and a hand wheel 20, two ends of the hollow shaft 31 are connected to the vertical frame 9b through a fourth socket head cap screw 28 and a washer 27, the rotatable shaft seat 17 is connected to the hollow shaft 31, the copper nut 19 is connected to the rotatable shaft seat 17 through a third socket head cap screw 18, the adjusting ball screw 15 is connected to the copper nut 19, and the other end of the adjusting ball screw is connected to the hand wheel 20. One end of the hand wheel 20 is connected to the other end of the adjusting ball screw 15 through a flat key 22 and is fixed through a thin nut 21 and a round nut 23. When the hand wheel 20 is rotated, the rotatable shaft base 17 can rotate freely around the axis of the hollow shaft 31, and the adjustable bottom plate 10 can rotate correspondingly around the rotating shaft 12, so that the movement is flexible, and the workpiece can be adjusted stably by using the hollow shaft 31.
Specifically, still include ha fu gland 6, ball-type base 7 is equipped with interior sphere, ha fu gland 6 passes through second allen key 5 and connects in ball-type base 7.
Specifically, the adjustable base plate further comprises an opening pressing plate 29 and outer hexagon bolts 30, wherein the opening pressing plate 29 is arranged at the upper end of the motor end cover workpiece 3, and the opening pressing plate 29 is connected to the adjustable base plate 10 through the outer hexagon bolts 30.
In this embodiment, one end of the arc-shaped scale plate 14 is connected to the side end of the adjustable bottom plate 10 by a rivet 4,
in this embodiment, taking an H280-355 series motor end cover as an example, a motor end cover drilling process is provided, which includes the drilling jig for the motor end cover, and the drilling steps are as follows:
s1: the assembling surface of a motor end cover workpiece 3 needing drilling is attached to the installing surface of the adjustable bottom plate 10 by a crane, the lower end of the motor end cover workpiece 3 is abutted against a corresponding spigot in the waist hole limiting block 8, and the upper end of the motor end cover workpiece 3 is fixed on the vertical frame 9b through an opening pressing plate 29 and an outer hexagon bolt 30;
s2: the spherical screw 15 is adjusted by rotating the hand wheel 20, and the angle between the adjustable bottom plate 10 and the side end of the vertical frame 9b is adjusted, so that the pointer 13 points to the corresponding angle position on the arc-shaped scale plate 14, and the waist hole limiting block 8 is fixed on the transverse frame 9a by using a fixing screw 32;
s3: adjusting the axis of a drill bit 2 on a cross arm 1 of the drilling machine to be parallel to the axis of a pointer 13, drilling angle holes in the circumferential surface 3 of a motor end cover workpiece 3, wherein the specific number of the holes is selected according to actual requirements, and the processed motor end cover is made of HT150-H250, so that the drill bit is made of corresponding cast iron gang drills, the diameter of the drill bit is 5-15mm, a straight shank drill chuck is adopted, the lifting speed of the cross arm of the drilling machine is 1.27-2.0m/min, and the rotation angle of the cross arm of the drilling machine is 360 degrees; the depth of the drilling hole is 1-120 mm; the depth-diameter ratio L/D is 3-8;
s4: when in rough and finish machining, the feed amount is 0.32 +/-0.01 mm; the cutting speed is 17 +/-1 m/min; the rotating speed is 450 +/-10 r/min;
s5: when in rough and finish machining cutting, the feed amount is 0.17 +/-0.01 mm; the cutting speed is 15 +/-1 m/min; the rotating speed is 320 +/-10 r/min;
s6: when reaming, the feed amount is 0.2 +/-0.01 mm; the cutting speed is 18 +/-1 m/min; the rotating speed is 420 +/-10 r/min.
In this embodiment, the drilling machine may be a radial drilling machine such as Z3040, Z3050 or Z3080, the lifting speed of the cross arm (radial) of the drilling machine is 1.27-2.0m/min, and the rotation angle is 360 degrees.
Specifically, the motor end cover workpiece 3 is made of gray cast iron HT150 or HT200, and the blank thereof is generally treated by an annealing process (usually 900-.
Specifically, the angle between the adjustable bottom plate 10 and the side end of the vertical frame 9b ranges from 0 to 30 °.
Through setting up pointer 13 and adjustment ball-type screw rod 15, in the work piece adjustment process, can the visual observation and nimble angle of adjusting motor end cover work piece 3, improved drilling position degree precision, and make to carry out the drilling process convenience to motor end cover work piece 3, improved efficiency.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a jig for motor end cover which characterized in that includes:
an underframe (9), wherein the underframe (9) comprises a cross frame (9 a) and a vertical frame (9 b) which are perpendicular to each other;
one end of the adjustable bottom plate (10) is rotatably connected to the vertical frame (9 b), an included angle is formed between the side end of the vertical frame (9 b) and the adjustable bottom plate (10), and the adjustable bottom plate (10) is provided with a mounting surface for mounting a motor end cover workpiece (3);
one end of the arc-shaped scale plate (14) is connected to the side end of the adjustable bottom plate (10), and the other end of the arc-shaped scale plate (14) is connected to the side end of the vertical frame (9 b) in a sliding mode;
one end of the pointer (13) is movably connected to the side end of the adjustable bottom plate (10), and the other end of the pointer (13) points to the scales of the scale plate;
the adjusting assembly comprises a spherical base (7) and an adjusting spherical screw (15), wherein the adjusting spherical screw (15) is rotatably connected to the bottom frame (9) and a ball head at one end of the adjusting spherical screw is connected to the bottom frame (9) through the spherical base (7).
2. The drill jig for the motor end cover is characterized by further comprising a kidney hole limiting block (8) connected to the cross frame (9 a), wherein the kidney hole limiting block (8) is provided with a plurality of rabbets used for abutting against the lower end of the motor end cover workpiece (3).
3. The drill jig for the end cover of the motor as claimed in claim 1, further comprising a rotation shaft (12), wherein one end of the adjustable base plate (10) is rotatably connected to the vertical frame (9 b) through the rotation shaft (12).
4. The drill jig for the motor end cover is characterized in that an arc-shaped groove is formed in one side of a scale in the arc-shaped scale plate (14), and a first inner hexagon screw (16) arranged in the arc-shaped groove is connected to the side end of the vertical frame (9 b).
5. The drilling jig for the motor end cover is characterized by further comprising a pointer pin shaft (11) and a gasket (26), wherein one end of the pointer (13) is rotatably connected to the side end of the adjustable bottom plate (10) through the pointer pin shaft (11), and the gasket (26) is arranged between one end of the pointer (13) and the side end of the adjustable bottom plate (10).
6. The jig for the motor end cover according to claim 1, wherein the adjusting assembly further comprises a hollow shaft (31), a rotatable shaft seat (17), a copper nut (19) and a hand wheel (20), the hollow shaft (31) is connected to the vertical frame (9 b), the rotatable shaft seat (17) is connected to the hollow shaft (31), the copper nut (19) is connected to the rotatable shaft seat (17), the adjusting ball screw (15) is connected to the copper nut (19) and the other end thereof is connected to the hand wheel (20).
7. The drill jig for the motor end cover is characterized by further comprising a half gland (6), wherein the spherical base (7) is provided with an inner spherical surface, and the half gland (6) is connected to the spherical base (7) through a second inner hexagonal screw (5).
8. The drill jig for the motor end cover is characterized by further comprising an opening pressing plate (29) and outer hexagon bolts (30), wherein the opening pressing plate (29) is arranged at the upper end of the motor end cover workpiece (3), and the opening pressing plate (29) is connected to the adjustable bottom plate (10) through the outer hexagon bolts (30).
9. A motor end cover drilling process is characterized in that the drilling jig for the motor end cover according to any one of claims 1 to 8 is adopted, and the drilling process comprises the following drilling steps:
s1: attaching an assembling surface of a motor end cover workpiece (3) needing drilling to an installing surface of an adjustable bottom plate (10) by using a crane, wherein the lower end of the motor end cover workpiece (3) is abutted against a corresponding spigot in a waist hole limiting block (8), and the upper end of the motor end cover workpiece (3) is fixedly arranged on a vertical frame (9 b) through an opening pressing plate (29) and an outer hexagonal bolt (30);
s2: the spherical screw (15) is adjusted by rotating the hand wheel (20), the angle between the adjustable bottom plate (10) and the side end of the vertical frame (9 b) is adjusted, the pointer (13) points to the corresponding angle position on the arc scale plate (14), and the waist hole limiting block (8) is fixed on the transverse frame (9 a) by the fixing screw (32);
s3: adjusting the axis of a drill bit (2) on a cross arm (1) of the drilling machine to be parallel to the axis of a pointer (13), and drilling an angle hole on a circumferential surface (3) of a motor end cover workpiece (3); the drill bit is high-speed tool steel or alloy tool steel, the diameter of the drill bit is 5-15mm, a straight shank drill chuck is adopted, the lifting speed of a cross arm of the drilling machine is 1.27-2.0m/min, and the rotation angle is 360 degrees; the depth of the drilling hole is 1-120 mm;
s4: when in rough and finish machining, the feed amount is 0.32 +/-0.01 mm; the cutting speed is 17 +/-1 m/min; the rotating speed is 450 +/-10 r/min;
s5: when in rough and finish machining cutting, the feed amount is 0.17 +/-0.01 mm; the cutting speed is 15 +/-1 m/min; the rotating speed is 320 +/-10 r/min;
s6: when reaming, the feed amount is 0.2 +/-0.01 mm; the cutting speed is 18 +/-1 m/min; the rotating speed is 420 +/-10 r/min.
10. The motor end cover drilling process according to claim 9, wherein the angle between the adjustable bottom plate (10) and the side end of the vertical frame (9 b) ranges from 0 ° to 30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210937080.8A CN115070455A (en) | 2022-08-05 | 2022-08-05 | Drilling jig for motor end cover and drilling process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210937080.8A CN115070455A (en) | 2022-08-05 | 2022-08-05 | Drilling jig for motor end cover and drilling process |
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| CN115070455A true CN115070455A (en) | 2022-09-20 |
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| CN202210937080.8A Pending CN115070455A (en) | 2022-08-05 | 2022-08-05 | Drilling jig for motor end cover and drilling process |
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| CN113579290A (en) * | 2021-06-16 | 2021-11-02 | 上海中船三井造船柴油机有限公司 | Combined tool and method for machining inclined hole of cylinder cover of marine diesel engine |
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