CN219852261U - Flywheel boring grab - Google Patents

Abstract

The utility model provides a flywheel drilling fixture, which is characterized in that a main positioning column is fixed on a workbench, three jacking rods are uniformly distributed on the side surface of the main positioning column along the circumference, a positioning disk is sleeved on the main positioning column, a first slot hole is processed at the corresponding position of the jacking rods by the positioning disk, a fixed support and a floating support are also installed on the workbench, a flywheel positioning inserting plate is also installed on the workbench, the front end of the flywheel positioning inserting plate is in a rectangular shape, the rear end of the flywheel positioning inserting plate is in an isosceles trapezoid shape, the rectangular end of the flywheel positioning inserting plate is inserted into a slot hole formed by combining a base and a cover plate, the flywheel positioning inserting plate can move back and forth along the slot hole, and the isosceles trapezoid end of the flywheel positioning inserting plate is just inserted into a first opening at the side end of the outer circumference of a flywheel. The utility model has simple structure, stable and convenient clamping, the jacking rod and the floating support provide XYZ three-direction positioning and fixing, and the flywheel positioning plugboard is matched with the first opening of the flywheel to ensure that the flywheel does not deflect during drilling, thereby improving the qualification rate of products.

Description

Flywheel boring grab

Technical Field

The utility model belongs to the technical field of drilling tools in machine tool equipment, and particularly relates to a drilling fixture for a clutch flywheel.

Background

The flywheel is a disc-shaped part with a large moment of inertia, which acts as an energy store. The flywheel has the main function of storing energy and inertia outside the power stroke of the engine. The four-stroke engine only has the energy of suction, compression and exhaust of one stroke from the energy stored in the flywheel. Since the work done by the individual cylinders of the engine is discontinuous, the engine speed is also variable. When the rotation speed of the engine is increased, the kinetic energy of the flywheel is increased, and the energy is stored; when the engine speed decreases, the flywheel kinetic energy decreases, releasing energy. The flywheel may be used to reduce speed fluctuations during engine operation. The engine and the automobile are connected through a clutch arranged on the flywheel, and the clutch is connected with the starter, so that the engine is convenient to start. And is an integration of crankshaft position sensing and vehicle speed sensing. In the working stroke, the energy transmitted to the crankshaft by the engine is partially absorbed by the flywheel besides the external output, so that the rotating speed of the crankshaft cannot be increased greatly. During the three strokes of exhaust, intake and compression, the flywheel releases its stored energy to compensate for the work consumed by the three strokes, so that the crankshaft speed is not reduced too much.

As shown in FIG. 4, due to the structural characteristics of the flywheel, the conventional fixture is difficult to ensure the clamping stability and does not interfere with the drilling position, and the flywheel is disc-shaped, so that the flywheel is easily deflected due to the drilling operation during drilling, and the drilling position is changed after the deflection to cause low product yield.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide the clamp special for flywheel drilling, which can better remedy the defects, and solves the problems of unstable clamping and positioning and low product qualification rate caused by easy deflection of the flywheel.

The technical scheme adopted by the utility model is as follows: the utility model provides a flywheel boring grab, includes the workstation, is fixed with main reference column on the workstation, three tight pole in top of circumference equipartition is followed to main reference column side, and the tight pole in top can be perpendicular to main reference column's side stretches out and withdraws, and the terminal surface top plays the fixed effect of flywheel centering on the flywheel hole side when stretching out, and the cover is equipped with the positioning disk on the main reference column, the positioning disk still installs fixed bolster and floating support on the workstation in the first slotted hole of top tight pole corresponding position processing, still install flywheel location picture peg on the workstation, the front end of flywheel location picture peg is isosceles trapezoid rear end and is the rectangle, and the rectangle end is pegged graft in the slotted hole by base and apron combination, and flywheel location picture peg can follow the slotted hole back-and-forth movement, and the isosceles trapezoid end of flywheel location picture peg is inserted in the first opening department of the outer circumference side end of flywheel just, and the floating support and the tight pole of top on the whole workstation pass through the hydraulic valve control action.

Preferably, the floating support quantity is 3 groups, and the equipartition is outside in main reference column circumference, and every group is floated and is supported including lower support and lever clamp plate, lower support fixed mounting is on the workstation, and the lug internally mounted elastic component of upper end makes the lug displacement from top to bottom, lever clamp plate includes lever seat and clamp plate, and the one end and the lever seat rotation of clamp plate are connected, and the other end and the lug of lower support of clamp plate correspond from top to bottom. The floating support supports and clamps the flywheel from the upper side and the lower side, so that the flywheel is not easy to deform during drilling.

Preferably, the fixed support is a cylindrical support block with constant height, and the contact part of the upper end part and the flywheel is a cambered surface. The fixed supports provide supporting force for the flywheel from bottom to top so that the flywheel is not easy to deform in drilling, the number of the fixed supports is 3, the fixed supports are distributed in the middle of the adjacent floating supports at intervals, and uniform supporting force is provided along the circumference of the flywheel by matching the fixed supports with the floating supports.

Preferably, the positioning disc is correspondingly provided with a second slotted hole at the flywheel position to be drilled, so that the drill bit can work conveniently, and the flywheel position to be drilled can be positioned in an auxiliary mode.

The beneficial effects of the utility model are as follows: the utility model has simple structure, stable and convenient clamping, the jacking rod and the floating support provide XYZ three-direction positioning and fixing, and the flywheel positioning plugboard is matched with the first opening of the flywheel to ensure that the flywheel does not deflect during drilling, thereby improving the qualification rate of products.

Drawings

FIG. 1 is a schematic view of a flywheel drilling jig;

FIG. 2 is a schematic view of a floating support structure;

FIG. 3 is a schematic view of a puck structure;

fig. 4 is a schematic view of the flywheel structure.

In the figure: the device comprises a workbench, a main positioning column, a 3-tightening rod, a 4-positioning disc, a 5-fixed support, a 6-floating support, a 7-flywheel positioning plug board, an 8-base, a 9-cover plate, a 10-flywheel, a 41-first slot hole, a 42-second slot hole, a 61-lower support, a 62-lever pressing plate, a 101-first opening, 611-convex blocks, 621-lever seats and 622-pressing plates.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein can be arranged and designed in a wide variety of different configurations.

As shown in fig. 1, a flywheel drilling fixture comprises a workbench 1, a main positioning column 2 is fixed on the workbench 1, three jacking rods 3 are uniformly distributed on the side surface of the main positioning column 2 along the circumference, the jacking rods 3 can extend and retract perpendicular to the side surface of the main positioning column 2, the end surface jacks on the side surface of an inner hole of a flywheel 10 during extension to play a role in centering and fixing the flywheel 10, a positioning disc 4 is sleeved on the main positioning column 2, the positioning disc 4 is positioned on the lower side of the jacking rod 3, a first slotted hole 41 is machined in the corresponding position of the jacking rod 3 to avoid interference, a second slotted hole 42 is correspondingly machined in the position of the positioning disc 4 to be drilled on the flywheel 10, a fixed support 5 and a floating support 6 are also installed on the workbench 1, the number of the floating supports 6 is 3, each group of floating supports 6 comprises a lower support 61 and a lever pressing plate 62, the lower support 61 is fixedly installed on the workbench 1, a lug 611 at the upper end is internally provided with an elastic component to enable the lug 611 to move up and down, the lever pressing plate 62 comprises a lever pressing plate 622 and a pressing plate 622, and the other end of the lever pressing plate 622 is correspondingly connected with the lower support 611 at one end of the upper end of the lower support 621, which corresponds to the lower support 611. The pressing plate 622 and the protrusions 611 support and clamp the flywheel 10 from both upper and lower sides, so that the flywheel 10 is not easily deformed when drilling. The fixed support 5 is a cylindrical support block with constant height, and the contact part of the upper end part and the flywheel 10 is a cambered surface, so that the surface of the flywheel 10 is prevented from being damaged. The fixed supports 5 provide supporting force for the flywheel 10 from bottom to top so that the flywheel 10 is not easy to deform during drilling, the number of the fixed supports 5 is 3, the fixed supports are distributed in the middle of the adjacent floating supports 6 at intervals, and the fixed supports and the floating supports 6 are matched to provide uniform supporting force along the circumference of the flywheel 10.

As shown in fig. 1, a flywheel positioning insert plate 7 is further installed on the workbench 1, the front end of the flywheel positioning insert plate 7 is isosceles trapezoid, the rear end of the flywheel positioning insert plate is rectangular, the rectangular end is inserted into a slot hole formed by combining the base 8 and the cover plate 9, the flywheel positioning insert plate 7 can move back and forth along the slot hole, the isosceles trapezoid end of the flywheel positioning insert plate 7 is just inserted into a first opening 101 at the outer circumferential side end of the flywheel 10, and the floating support 6 and the jacking rod 3 on the whole workbench are controlled to act through a hydraulic valve.

When the flywheel positioning insert plate is used, the workbench and the clamp on the workbench are integrally and fixedly arranged on the machine tool operation table, the jacking rod 3 is retracted through the control of the hydraulic valve, the pressing plate 622 is lifted upwards along the rotating shaft, an inner hole of the flywheel 10 to be processed is sleeved on the main positioning column 2, the lower end face of the flywheel is in contact with the upper end face of the positioning disc 4, the position of the flywheel 10 is rotationally adjusted to enable the flywheel positioning insert plate 7 to be just inserted into the first opening 101, then the jacking rod 3 is ejected through the control of the hydraulic valve, the pressing plate 622 is pressed downwards on the upper end face of the flywheel 10 along the rotating shaft, at the moment, the flywheel 10 is positioned and clamped according to the design requirement, drilling operation is carried out, after drilling is completed, the jacking rod 3 is retracted through the control of the hydraulic valve, the pressing plate 622 is lifted upwards along the rotating shaft, the flywheel positioning insert plate 7 is retracted, and the flywheel 10 is taken out.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (4)

1. Flywheel boring grab, its characterized in that: including workstation (1), be fixed with main reference column (2) on workstation (1), three tight pole (3) in top of circumference equipartition are followed to main reference column (2) side, cover positioning disk (4) on main reference column (2), first slotted hole (41) of location processing are avoided interfering in tight pole (3) top to positioning disk (4), fixed bolster (5) and floating support (6) are still installed on workstation (1), flywheel positioning picture peg (7) are still installed on workstation (1), the front end of flywheel positioning picture peg (7) is the rectangle for isosceles trapezoid rear end, and the rectangle end is pegged graft in the slotted hole by base (8) and apron (9) combination, and flywheel positioning picture peg (7) can follow the slotted hole and reciprocate, and the isosceles trapezoid end of flywheel positioning picture peg (7) is inserted just in first opening (101) department of the outer circumference side end of flywheel (10).

2. A flywheel boring grab as defined in claim 1, wherein: the utility model discloses a device for fixing a large-scale steel wire rope, including main reference column (2), floating support (6) quantity is 3 groups, and the equipartition is outside in main reference column (2) circumference, and every group floating support (6) include lower support (61) and lever clamp plate (62), lower support (61) fixed mounting is on workstation (1), and lug (611) internally mounted elastic component of upper end makes lug (611) displacement from top to bottom, lever clamp plate (62) include lever seat (621) and clamp plate (622), and the one end and lever seat (621) rotation of clamp plate (622) are connected, and the other end and the lug (611) of lower support (61) of clamp plate (622) correspond from top to bottom.

3. A flywheel boring grab as defined in claim 1, wherein: the fixed support (5) is a cylindrical support block with constant height, and the contact part of the upper end part and the flywheel (10) is a cambered surface.

4. A flywheel boring grab as defined in claim 1, wherein: the positioning disc (4) is correspondingly provided with a second slotted hole (42) at the position to be drilled of the flywheel (10).