CN215824458U - Auxiliary tool for crankshaft extrusion thread machining - Google Patents
Auxiliary tool for crankshaft extrusion thread machining Download PDFInfo
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- CN215824458U CN215824458U CN202121947727.2U CN202121947727U CN215824458U CN 215824458 U CN215824458 U CN 215824458U CN 202121947727 U CN202121947727 U CN 202121947727U CN 215824458 U CN215824458 U CN 215824458U
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Abstract
The utility model discloses a crankshaft extrusion thread machining assistive device.A tapping connecting rod is fixed with a spindle conical cylinder of a radial drilling machine; the tapping connecting rod is provided with a transverse through hole, and the driving rod is inserted into the through hole; the lower part of the tapping connecting rod is a conical part; two ends of the deflector rod are in cross butt joint with the side part of the pin shaft; the lower end of the pin shaft is in interference fit with the through hole of the power plate; a rectangular through hole is formed in the middle of the power plate, a rectangular part is arranged above the tapping guide rod, and the rectangular part is inserted into the rectangular through hole; the rectangular part is provided with a taper hole corresponding to the taper part at the lower part of the tapping connecting rod; a rectangular groove is formed in the tapping guide rod and matched with the rectangular end of the end part of the extrusion screw tap; the utility model has the advantages that: the position of the extrusion tap is accurately corrected and the rotating torque is reliably transmitted in the machining process, so that the machining requirement is guaranteed.
Description
Technical Field
The utility model relates to the field of machinery, in particular to a machining tool.
Background
At present, numerical control machine tool machining crankshaft counterweight plane threaded hole's screw tap has two kinds, one kind is cutting screw tap, another kind is extrusion screw tap, and cutting screw tap produces iron fillings in the course of working, and the lathe bears the resistance little, and the thread roughness after the processing is poor, and extrusion screw tap does not produce iron fillings in the course of working, and the lathe bears the resistance big, and the thread roughness after the processing is better.
No matter whether the cutting screw tap or the extruding screw tap is used for machining, due to the reasons of workpiece hardness, the service life of the screw tap and the like, the broken screw tap can be generated, after the broken screw tap is taken out, the threaded hole still needs to be machined subsequently, if the numerical control machine tool is continuously machined, the risk is high, and the machined threads are easily damaged.
For the fracture of the cutting screw tap, because the resistance is small in the machining process, the subsequent machining can be completed by adopting manual tapping; if the extrusion tap breaks, the subsequent processing can not be finished by manual tapping due to large resistance in the processing process.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem of subsequent processing after the extrusion screw tap is broken, the utility model aims to provide a crankshaft extrusion thread processing auxiliary tool, which comprises an extrusion screw tap, a tapping guide rod, a power plate, a pin shaft, a driving lever and a tapping connecting rod;
the upper part of the tapping connecting rod is fixed with a spindle cone of the radial drilling machine;
the tapping connecting rod is provided with a transverse through hole, and the driving rod is inserted into the through hole; the lower part of the tapping connecting rod is a conical part;
through holes are symmetrically arranged at two ends of the power plate, and the middle part of the power plate is a square hole;
two ends of the deflector rod are in cross butt joint with the side part of the pin shaft;
the lower end of the pin shaft is in interference fit with the through hole of the power plate;
a rectangular through hole is formed in the middle of the power plate, a rectangular part is arranged above the tapping guide rod, and the rectangular part is inserted into the rectangular through hole and is in interference fit with the rectangular through hole; the four sides of the two rectangles are in interference fit and are not easy to process, so two opposite sides of the rectangular part are in interference fit, and the other two opposite sides are in clearance fit;
the rectangular part is provided with a taper hole corresponding to the taper part at the lower part of the tapping connecting rod;
a rectangular groove is formed in the tapping guide rod and matched with the rectangular end of the end part of the extrusion screw tap;
the tapping guide rod is provided with a boss, and the upper end of the boss is abutted to the lower end of the power plate.
The lower end of the pin shaft is in threaded connection with the through hole of the power plate.
The part of the tapping connecting rod inserted into the spindle cone of the radial drilling machine is conical.
The deflector rod is tightly matched with the through hole.
The utility model has the advantages that:
the position of the extrusion tap is accurately corrected and the rotating torque is reliably transmitted in the machining process, so that the machining requirement is guaranteed.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic view of a tapping guide;
fig. 4 is a right side view of fig. 3.
Detailed Description
The utility model is described in detail below with reference to the accompanying drawings, and as shown in the figures, the utility model comprises an extrusion tap 1, a tapping guide rod 2, a power plate 3, a pin shaft 4, a shift lever 5 and a tapping connecting rod 6;
the upper part of the tapping connecting rod 6 is fixed with a spindle cone 7 of the radial drilling machine;
the tapping connecting rod 6 is provided with a transverse through hole 61, and the driving rod 5 is inserted into the through hole 61 and can be in tight fit with the through hole 61; the lower part of the tapping connecting rod is a conical part 62;
through holes are symmetrically arranged at two ends of the power plate 3, and a square hole 31 is arranged at the middle part of the power plate;
two ends of the deflector rod 5 are in cross butt joint with the side part of the pin shaft 4, namely one end of the deflector rod 5 is in butt joint with the side part of the pin shaft, and the other end of the deflector rod 5 is in butt joint with the other side of the pin shaft, as shown in figure 2, the rotation of the deflector rod 5 can be utilized to drive the two pin shafts 4 to rotate around the center of the power plate;
the lower end of the pin shaft 4 is in interference fit with the through hole of the power plate 3;
for transmitting torque, a rectangular through hole 31 is formed in the middle of the power plate 3, a rectangular part 21 is arranged above the tapping guide rod 2, and the rectangular part 21 is inserted into the rectangular through hole 31 and is in interference fit; two opposite sides of the rectangular part are in interference fit, and the other two opposite sides are in clearance fit;
for accurate positioning, the rectangular part is provided with a taper hole 22 corresponding to the taper part 62 at the lower part of the tapping extension rod 6;
similarly, for transmission torque, a rectangular groove 23 is formed in the tapping guide rod 2, and the rectangular groove 23 is matched with the rectangular end of the end part of the extrusion tap;
in order to ensure axial positioning, the tapping guide rod is provided with a boss 24, and the upper end of the boss 24 is abutted against the lower end of the power plate 3.
In another connecting method, the lower end of the pin shaft 4 is in threaded connection with the through hole of the power plate 3.
In order to facilitate connection and installation, the part of the tapping extension rod 6 inserted into the spindle cone of the radial drilling machine is conical.
In order to ensure the firmness, the deflector rod 5 is tightly matched with the through hole 61.
During the use, firstly, extrusion screw tap 1 is manually screwed into the 8 threaded holes in the crankshaft counterweight surface, after a shifting rod 5 is matched and fixed with a tapping connecting rod 6, the shifting rod is inserted into a radial drill spindle conical cylinder 7, a tapping guide rod 2 and a pin shaft 4 are respectively matched and fixed with a power plate 3 and are matched with a clamping part at the tail part of the extrusion screw tap 1, the radial drill spindle conical cylinder 7 is moved, a conical part 62 of the tapping connecting rod 6 is made to enter a conical hole 22 of the tapping guide rod 2, reliable positioning is guaranteed, the radial drill spindle conical cylinder 7 is locked, a machine tool is started, the radial drill spindle conical cylinder 7 rotates clockwise, torque is transmitted to the extrusion screw tap 1 through the tapping connecting rod 6, the shifting rod 5, the pin shaft 4, the power plate 3 and the tapping guide rod 2, the radial drill spindle conical cylinder 7 freely moves downwards vertically, and residual thread processing is completed.
Claims (4)
1. The utility model provides a utensil is assisted in bent axle extrusion thread processing which characterized in that: comprises an extrusion screw tap, a tapping guide rod, a power plate, a pin shaft, a deflector rod and a tapping connecting rod;
the upper part of the tapping connecting rod is fixed with a spindle cone of the radial drilling machine;
the tapping connecting rod is provided with a transverse through hole, and the driving rod is inserted into the through hole; the lower part of the tapping connecting rod is a conical part;
through holes are symmetrically arranged at two ends of the power plate, and the middle part of the power plate is a square hole;
two ends of the deflector rod are in cross butt joint with the side part of the pin shaft;
the lower end of the pin shaft is in interference fit with the through hole of the power plate;
a rectangular through hole is formed in the middle of the power plate, a rectangular part is arranged above the tapping guide rod, the rectangular part is inserted into the rectangular through hole, two opposite sides of the rectangular part are in interference fit, and the other two opposite sides are in clearance fit;
the rectangular part is provided with a taper hole corresponding to the taper part at the lower part of the tapping connecting rod;
a rectangular groove is formed in the tapping guide rod and matched with the rectangular end of the end part of the extrusion screw tap;
the tapping guide rod is provided with a boss, and the upper end of the boss is abutted to the lower end of the power plate.
2. The crankshaft extrusion thread machining aid of claim 1, wherein: the lower end of the pin shaft is in threaded connection with the through hole of the power plate.
3. The crankshaft extrusion thread machining aid of claim 1, wherein: the part of the tapping connecting rod inserted into the spindle cone of the radial drilling machine is conical.
4. The crankshaft extrusion thread machining aid of claim 1, wherein: the deflector rod is tightly matched with the through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121947727.2U CN215824458U (en) | 2021-08-19 | 2021-08-19 | Auxiliary tool for crankshaft extrusion thread machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121947727.2U CN215824458U (en) | 2021-08-19 | 2021-08-19 | Auxiliary tool for crankshaft extrusion thread machining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215824458U true CN215824458U (en) | 2022-02-15 |
Family
ID=80195592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121947727.2U Active CN215824458U (en) | 2021-08-19 | 2021-08-19 | Auxiliary tool for crankshaft extrusion thread machining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215824458U (en) |
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2021
- 2021-08-19 CN CN202121947727.2U patent/CN215824458U/en active Active
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