CN211219920U - Angle positioning device for crankshaft drilling - Google Patents
Angle positioning device for crankshaft drilling Download PDFInfo
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- CN211219920U CN211219920U CN201922217855.0U CN201922217855U CN211219920U CN 211219920 U CN211219920 U CN 211219920U CN 201922217855 U CN201922217855 U CN 201922217855U CN 211219920 U CN211219920 U CN 211219920U
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- angular positioning
- crankshaft
- rod
- positioning
- drilling
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Abstract
An angular positioning device for crankshaft drilling is used for crankshaft drilling positioning. The angular positioning oil cylinder is fixed on the base, and the vertical distance from the axis of the crankshaft is that a first connecting rod neck P1 of the crankshaft can be lapped on the surface of the positioning rod in the horizontal direction; the adjusting screw rod and a piston rod of the angular positioning oil cylinder are locked through a nut, the positioning rod is arranged at the upper end of the adjusting screw rod through a set screw, the base is locked on a dovetail-shaped displacement guide rail of the transverse moving workbench through a trapezoidal locking block, and the infrared sensor is fixed on a cylinder barrel of the angular positioning oil cylinder. The utility model discloses an angular positioning device, the piston rod through the angular positioning hydro-cylinder stretches up, and infrared inductor responds to the locating lever signal to can confirm that first connecting rod neck P1 takes and is the horizontal direction position on the locating lever, and use this equipment zero return position as the location benchmark, with the oilhole processing position of the connecting rod neck of definite bent axle or the main shaft neck, positioning accuracy is very high, convenient and fast, simple structure.
Description
Technical Field
The utility model relates to an automobile parts makes technical field, specifically is a bent axle is angular positioning device for drilling.
Background
Original bent axle bores a lathe for straight oilhole, bores an inclined oilhole and uses a lathe, and the structure is roughly the same, only with the certain angle of unit head deflection when boring inclined oilhole, original lathe exists following shortcoming:
1. in the use, adopt a large amount of blowout gun drill oil to cool off the machined part, lubricate the cutter, if the gun drill oil that the cleanliness is very poor passes through gun drill cutter oilhole, just very easily by impurity jam, if gun drill oil can not smoothly spray the machined part, can cause gun drill cutter to cut off sword, bent axle and jig cover to scrap. The gun drilling oil is filtered by a filter system of the recycling equipment, but the system is too large and occupies a large area.
2. The machine tool has low working efficiency.
3. The oil hole is drilled by tightly propping the center holes at the two ends of the crankshaft by the center, and the crankshaft belongs to a slender shaft, so that the radial force applied to the slender shaft is very large during drilling, the crankshaft can be bent, and the vibration of a machine tool is very large.
4. Due to the design of the gun drill machine, the length of the gun drill is very long and reaches 480-500mm, so that a set of very complicated guide device needs to be arranged on the gun drill machine.
5. The gun drill cutter is manufactured by welding hard alloy on the cutter rod, if the welding quality is not over-closed, the hard alloy cutter head is subjected to desoldering in the machining process, the cutter head is separated from the cutter rod and clamped in a hole of a machined workpiece, and the cutter head is continuously fed and rotated along with the cutter rod, so that the scrapped cutter rod is extruded in the machined hole until the crankshaft and the drill jig sleeve are scrapped simultaneously.
Therefore, the research on special equipment for drilling the straight oil hole or the inclined oil hole on the crankshaft is more and more important, and meanwhile, the equipment must adopt a crankshaft angular positioning device as a positioning reference for processing the oil holes of the crankshaft connecting rod journal and the main journal.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide the angular positioning device for crankshaft drilling, so that automatic drilling of a straight oil hole or an inclined oil hole of a crankshaft is realized at high precision.
In order to realize the purpose, the angular positioning oil cylinder of the angular positioning device is fixed on the base, and the vertical distance from the axis of the crankshaft is that a first connecting rod neck P1 of the crankshaft can be lapped on the surface of the positioning rod to be in the horizontal direction; the adjusting screw rod and a piston rod of the angular positioning oil cylinder are locked through a nut, the positioning rod is arranged at the upper end of the adjusting screw rod through a set screw, the base is locked on a dovetail-shaped displacement guide rail of the transverse moving workbench through a trapezoidal locking block, and the infrared sensor is fixed on a cylinder barrel of the angular positioning oil cylinder through a connecting steel plate.
The connecting steel plate is provided with a long round hole in the vertical direction, and the infrared sensor can move along the long round hole according to the position of the positioning rod.
The dovetail-shaped displacement guide rail is arranged above the transverse moving worktable, and the angular positioning device, the indexing and transposition clamp, the V-shaped bracket and the tail platform are arranged above the dovetail-shaped displacement guide rail.
Compared with the prior art, the utility model, the bent axle removes and is adopting graduation transposition anchor clamps, V type bracket and tailstock carry out on axial and radial positioning's basis, angular positioning device has still been increased, the piston rod through the angular positioning hydro-cylinder stretches up, infrared inductor response locating lever signal, thereby can confirm that first connecting rod neck P1 takes and is the horizontal direction position on the locating lever, and use this equipment zero-returning position as the location benchmark, with the oilhole processing position of the connecting rod neck or the main shaft neck of definite bent axle, positioning accuracy is very high, and is convenient and fast, and the steam generator is simple in structure.
Drawings
Fig. 1 is a process diagram of a crankshaft.
Fig. 2 is a sectional view a-a of fig. 1.
Fig. 3 is a schematic view of the present invention.
Fig. 4 is a simplified installation diagram of the present invention.
Detailed Description
As shown in fig. 1, 2, 3, and 4, the dovetail-shaped displacement guide 7 of the present invention is mounted above the traverse table 17, the angular positioning device 15, the indexing fixture 18, the V-shaped bracket 16, and the end plate 19 are disposed above the dovetail-shaped displacement guide 7, and the dovetail-shaped displacement guide 7 is a positioning reference for the angular positioning device 15, the indexing fixture 18, the V-shaped bracket 16, and the end plate 19. The indexing jig 18, V-shaped bracket 16 and tailstock 19 axially and radially position the crankshaft 2.
An angular positioning oil cylinder 6 of the angular positioning device 15 is fixed on a base 9, and a first connecting rod neck P1 which is at a vertical distance of 1 from the axis of the crankshaft 2 and has a serial number of 1 can be lapped on the surface of a positioning rod 12 to be in a horizontal direction; an adjusting screw rod 10 is locked with a piston rod 5 of an angular positioning oil cylinder 6 through a nut 4, a positioning rod 12 is arranged at the upper end of the adjusting screw rod 10 through a set screw 11, a base 9 is locked on a dovetail-shaped displacement guide rail 7 of a transverse moving workbench 17 through a trapezoid locking block 8, an infrared sensor 13 is fixed on a cylinder barrel of the angular positioning oil cylinder 6 through a connecting steel plate 14, a long circular hole is formed in the vertical direction of the connecting steel plate 14, and the infrared sensor 13 can move along the long circular hole according to the position of the positioning rod 12; when the positioning rod 12 touches light emitted by the infrared sensor 13, the infrared sensor 13 feeds signals back to an electric control system of special equipment for drilling straight oil holes or inclined oil holes on the crankshaft, the angular positioning oil cylinder 6 stops working, the positioning rod 12 stops lifting, and when the inclined oil holes 3 are machined, an operator manually rotates the crankshaft 2 to enable a first connecting rod neck P1 to be lapped on the surface of the positioning rod 12, at the moment, the first connecting rod neck P1 is in the horizontal direction, the position after the first connecting rod neck P1 is positioned is an equipment return-to-zero position, the equipment return-to-zero position is taken as a reference, under the combined action of the indexing fixture 18 and the turntable workbench, the crankshaft 2 rotates by an angle corresponding to one by one, and drilling power heads on the turntable workbench can respectively machine the inclined oil holes 3 on the connecting rod neck; when processing straight oilhole 3, the height of adjustment locating lever 12 and infrared sensor 13, the operative employee manually rotates bent axle 2 and makes its first connecting rod neck P1 take on the surface of locating lever 12, first connecting rod neck P1 is the horizontal direction this moment, this position after first connecting rod neck P1 location is the equipment zero return position, use this equipment zero return position as the benchmark, under the effect of graduation transposition anchor clamps 18, make the rotatory one-to-one angle of bent axle 2, can process straight oilhole 3 on the main journal respectively through the drilling unit head.
A turntable workbench of special equipment for drilling straight oil holes or inclined oil holes on the crankshaft can move along with a horizontal direction moving sliding table and a horizontal direction moving guide rail, so that the drilling of the oil holes 3 at different axial positions of the crankshaft 2 is realized; the rotary table is driven manually, and can rotate through gear engagement, so that the oblique oil hole of the crankshaft 2 can be drilled; the lifting guide rail seat of the special device for drilling the straight oil hole or the inclined oil hole on the crankshaft can move up and down through the adjusting screw, so that a drilling power head on the lifting guide rail seat is driven to move up and down, and drilling of the oil holes 3 with different heights of the crankshaft 2 is realized.
Claims (3)
1. The utility model provides a bent axle is angular positioning device for drilling which characterized in that: an angular positioning oil cylinder (6) of an angular positioning device (15) is fixed on a base (9), the angular positioning device (15) is arranged between an operator and a crankshaft (2), and the vertical distance from the axis of the crankshaft (2) is that a first connecting rod neck P1 (1) of the crankshaft (2) can be lapped on the surface of a positioning rod (12) to be in the horizontal direction; an adjusting screw rod (10) and a piston rod (5) of an angular positioning oil cylinder (6) are locked through a nut (4), a positioning rod (12) is arranged at the upper end of the adjusting screw rod (10) through a set screw (11), a base (9) is locked on a dovetail-shaped displacement guide rail (7) of a transverse moving workbench (17) through a trapezoidal locking block (8), and an infrared sensor (13) is fixed on a cylinder barrel of the angular positioning oil cylinder (6) through a connecting steel plate (14).
2. The angular positioning apparatus for drilling a crankshaft according to claim 1, wherein: the connecting steel plate (14) is provided with a long circular hole in the vertical direction, and the infrared sensor (13) can move along the long circular hole according to the position of the positioning rod (12).
3. The angular positioning apparatus for drilling a crankshaft according to claim 1, wherein: the dovetail-shaped displacement guide rail (7) is arranged above the transverse moving workbench (17), and the angular positioning device (15), the indexing and indexing fixture (18), the V-shaped bracket (16) and the tail platform (19) are arranged above the dovetail-shaped displacement guide rail (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922217855.0U CN211219920U (en) | 2019-12-12 | 2019-12-12 | Angle positioning device for crankshaft drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922217855.0U CN211219920U (en) | 2019-12-12 | 2019-12-12 | Angle positioning device for crankshaft drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211219920U true CN211219920U (en) | 2020-08-11 |
Family
ID=71939162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922217855.0U Active CN211219920U (en) | 2019-12-12 | 2019-12-12 | Angle positioning device for crankshaft drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211219920U (en) |
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2019
- 2019-12-12 CN CN201922217855.0U patent/CN211219920U/en active Active
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