CN218050475U - Aluminum alloy part crosses nail hole ream terminal surface stop device - Google Patents

Abstract

A limiting device for counterboring end faces of aluminum alloy parts after nail holes are passed comprises a connecting plate and a limiting plate; one end of the connecting plate is arranged on the main shaft sleeve, and the middle part of the end surface of the other end of the connecting plate is provided with a horizontally extending threaded counter bore; the main shaft sleeve is sleeved on the main shaft of the bench drill; the countersink is clamped on the main shaft of the bench drill; the limiting plate is the step cylinder, the little step portion outer wall of limiting plate one side have with screw thread counter bore complex external screw thread, limiting plate threaded connection is at the connecting plate other end, the central line of limiting plate is perpendicular with the central line of bench drill main shaft, it has two gag lever posts to surround cloth in the big step portion periphery of limiting plate opposite side, outside protrusion has the location backing pin with two gag lever posts one-to-one on the big step portion, two the location backing pin is towards connecting plate one side. The machining precision is improved, and meanwhile, the labor force of operators is reduced.

Description

Aluminum alloy part crosses nail hole ream terminal surface stop device

Technical Field

The utility model is used for the processing technology technical field of aluminum alloy part, concretely relates to aluminum alloy part crosses nail hole counter-boring terminal surface stop device.

Background

Some aluminum alloy parts are often manufactured with nail passing holes, and the two end faces of the nail passing holes need to be processed smoothly, so that a gasket penetrating through a screw is conveniently flatly attached to the end faces of the nail passing holes during screw connection. In actual processing, one end face of each nail passing hole is coplanar and is usually milled or turned together; the other end face is designed to be as high as one end face, and the other end face is designed to be different in height, and most of the end faces adopt guide countersink end faces by using a traditional technological method. Some parts with larger overall dimensions are more countersunk end surfaces on the radial drilling machine, and some parts with smaller overall dimensions are more countersunk end surfaces on the bench drilling machine. When the end face of a countersink is reamed on a bench drilling machine, an operator presses down an operating rod to drive a countersink to descend for cutting, and observes the scale with eyes, the height dimension error is large when the end face with the same height is reamed and often fluctuates within the range of +/-0.3, the height dimension error is large when the end faces with two different heights are reamed and often fluctuates within the range of +/-0.5, and the operator needs to observe two scale positions, so that the thought is highly tense, and the error is easy to see.

Disclosure of Invention

An object of the utility model is to solve the not enough of above-mentioned prior art to a nail hole counter-sinking terminal surface stop device is crossed to aluminum alloy part is provided, improves the machining precision, reduces the operating personnel labour simultaneously.

A limiting device for counterboring end faces of aluminum alloy parts after nail holes are passed comprises a connecting plate and a limiting plate;

one end of the connecting plate is arranged on the main shaft sleeve, and the middle part of the end surface of the other end of the connecting plate is provided with a horizontally extending threaded counter bore; the main shaft sleeve is sleeved on the main shaft of the bench drill; the countersink is clamped on the main shaft of the bench drill;

the limiting plate is the step cylinder, the little step portion outer wall of limiting plate one side have with screw thread counter bore complex external screw thread, limiting plate threaded connection is at the connecting plate other end, the central line of limiting plate is perpendicular with the central line of bench drill main shaft, it has two gag lever posts to surround cloth in the big step portion periphery of limiting plate opposite side, outside protrusion has the location backing pin with two gag lever posts one-to-one on the big step portion, two the location backing pin is towards connecting plate one side. The connecting plate can be synchronously lifted along with the spindle sleeve, the bench drill spindle and the countersink after being assembled with the limiting plate and the limiting rod.

The limiting plate is provided with pin holes for installing corresponding positioning stop pins, the centers of the two pin holes are positioned on the circumference of the same circle, and the diameter of the circle where the two pin holes are positioned is not more than the width of the connecting plate.

The cutting of the periphery of the large step portion of the limiting plate is provided with cutting planes which correspond to the two limiting rods one by one, screw holes are formed in the cutting planes, external threads which correspond to the screw holes and are assembled are machined at one ends of the limiting rods, nuts are further sleeved on the external threads of the limiting rods, and the nuts are used for locking the limiting rods with the adjusted lengths.

An included angle alpha is formed between the central lines of the two screw holes, an included angle beta is formed between the centers of the two positioning stop pins and a connecting line of the centers of the limiting plates, and alpha = beta.

After the two limiting rods are positioned and fixed, the length difference (L1-L2) of the two limiting rods is consistent with the height difference delta h of the two to-be-machined planes of the to-be-machined part.

One end of the connecting plate is provided with a round hole capable of penetrating through the main shaft sleeve, more than two screw holes are annularly distributed on the periphery of the round hole, each screw hole is communicated with the round hole, and a screw capable of supporting the main shaft sleeve at the top end is arranged in each screw hole.

Compared with the prior art the utility model discloses it is spacing to take the rigidity, and the operative employee only needs to aim at the nail hole with direction countersink guide post and push down the action bars can when the operation, and the gag lever post of having adjusted the height supports counterboring face height dimension behind the table surface and just has target in place, and the operative employee need not to watch the scale, and the height dimension precision that reams out like this can reach 0.1. When the other nail hole passing end face of the part is reamed, only the other limiting rod with the length adjusted in advance needs to be rotated to the vertical position, and the previous reaming operation is repeated.

The utility model discloses not only can carry on spacingly to the high face of two differences, the precision also obviously improves moreover.

The utility model discloses simple manufacture, low cost very easily promotes.

Drawings

FIG. 1 is a top view of a connection plate;

FIG. 2 is a sectional view taken along line B-B of FIG. 1;

FIG. 3 is a schematic structural diagram of a limiting plate;

FIG. 4 is a cross-sectional view taken along line C-C of FIG. 3;

FIG. 5 is a schematic structural view of a stop lever;

fig. 6 is a schematic structural view of the present invention;

FIG. 7 isbase:Sub>A sectional view taken along line A-A of FIG. 6;

in the figure: 1. a work table; 2. a part to be processed; 3. countersinking; 4. a connecting plate; 5. a screw; 6. a main shaft sleeve; 7. a main shaft; 8. a stop pin; 9. a limiting plate; 10. a nut; 11. a limiting rod; 12. screw holes; 13. a circular hole; 14. a threaded counter bore; 15. a small step portion; 16. a pin hole; 17. a screw hole; 18. cutting a plane; 19. and (4) external threads.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In fig. 1 and 2, a round hole 13 is processed at the left end of the connecting plate 4, the aperture of the round hole 13 is in clearance fit with the spindle sleeve 6, three screw holes 12 are formed in the connecting plate 4 at the periphery of the round hole 13, the three screw holes 12 are distributed on three end faces of the connecting plate, the screw holes 12 are communicated with the round hole 13, and a threaded counter bore 14 is processed in the middle of the right end face of the connecting plate.

Fig. 3 and 4, the limiting plate 9 is a stepped cylinder, the outer wall of the small step portion 15 at the left end of the limiting plate 9 is provided with an external thread which can be in thread fit with the thread counter bore 14, the outer peripheral wall of the large step portion at the right end of the limiting plate 9 is provided with two cutting planes 18, each cutting plane is provided with a screw hole 17, an included angle α is formed between the center lines of the two screw holes 17, the limiting plate 9 is provided with two pin holes 16, the centers of the two pin holes 16 are located on the circumference of the same circle, an included angle β is formed between the center of the two pin holes 16 and the center connecting line of the limiting plate 9, and β = α.

In fig. 5, an external thread 19 correspondingly assembled with the screw hole 17 is processed at one end of the limiting rod 11; the protruding length of the stopper rod 11 can be adjusted by the screwing length of the external thread 19 and the screw hole 17.

In fig. 6 and 7, firstly, the small step part 15 of the limiting plate 9 is connected with the thread counter bore 14 on one side of the connecting plate 14, then the nut 10 is installed outside the external thread at one end of the two limiting rods 11, then the two limiting rods 11 are correspondingly installed in the two screw holes 17, after the lengths of the two limiting rods 11 are adjusted, the two limiting rods 11 are locked by the corresponding nuts 10, and after the two limiting rods 11 are positioned and fixed, the length difference (L1-L2) of the two limiting rods 11 is consistent with the height difference Δ h of two to-be-machined planes of the to-be-machined part 3. Then two positioning stop pins 8 are inserted into the corresponding pin holes 16, the diameter of the circle where the two pin holes 16 are located is not larger than the width of the connecting plate 4, the two positioning stop pins 8 protrude towards one side of the small step part 15, finally, the round hole at one end of the connecting plate 4 is sleeved outside the spindle sleeve 6, then the top end of a screw 5 installed in the three screw holes 12 abuts against the spindle sleeve 6, the connecting plate 4 is horizontally fixed outside the spindle sleeve, the spindle sleeve 6 is sleeved on the bench drill spindle 1, the countersink 3 for processing is clamped on the bench drill spindle 1, and the connecting plate 4, the limiting plate 9 and the limiting rod 11 can be synchronously lifted along with the spindle sleeve 6, the bench drill spindle 1 and the countersink 3 after being assembled together. The limiting plate 9 is rotated clockwise, when the positioning stop pin 8 on the right side is contacted with the upper end face of the connecting plate 4, the central line of the limiting rod 11 on the right side is vertical to the upper end face of the bench drill workbench 1, and the first nail passing hole end face of the part 2 to be processed can be processed at the moment; and then, the limiting plate 9 is rotated anticlockwise, when the left positioning stop pin 8 is in contact with the upper end face of the connecting plate 4, the central line of the left limiting rod 11 is perpendicular to the upper end face of the bench drill workbench 1, and the second nail hole passing end face of the part 2 to be processed can be processed at the moment.

Claims (6)

1. The utility model provides an aluminum alloy part crosses nail hole counter head face stop device which characterized in that: comprises a connecting plate (4) and a limiting plate (9);

one end of the connecting plate (4) is arranged on the main shaft sleeve (6), and the middle part of the end face of the other end is provided with a horizontally extending threaded counter bore (14); the main shaft sleeve (6) is sleeved on the bench drill main shaft (1); the countersink (3) is clamped on the bench drill spindle (1);

limiting plate (9) are the step cylinder, the little step portion (15) outer wall of limiting plate (9) one side have with screw thread counter bore (14) complex external screw thread, limiting plate (9) threaded connection is at connecting plate (4) other end, and the central line of limiting plate (9) is perpendicular with the central line of bench drill main shaft (1), the big step portion periphery of limiting plate (9) opposite side is fitted with a contraceptive ring and is had two gag lever post (11), outside protrusion has locating stop pin (8) with two gag lever post (11) one-to-one on the big step portion, two locating stop pin (8) are towards connecting plate (4) one side.

2. The aluminum alloy part nail hole passing spot facing end face limiting device as recited in claim 1, wherein: the limiting plate (9) is provided with pin holes (16) which are provided with corresponding positioning stop pins (8), the centers of the two pin holes (16) are positioned on the circumference of the same circle, and the diameter of the circle where the two pin holes (16) are positioned is not larger than the width of the connecting plate (4).

3. The aluminum alloy part nail hole passing spot-facing end surface limiting device as claimed in claim 1 or 2, which is characterized in that: the cutting of the big step portion periphery of limiting plate (9) has cutting plane (18) with two gag lever post (11) one-to-one, has screw (17) on cutting plane (18), gag lever post (11) one end processing has external screw thread (19) with screw (17) correspondence assembly, still overlaps on the external screw thread of gag lever post (11) and is equipped with nut (10).

4. The aluminum alloy part nail hole passing spot-facing end face limiting device as claimed in claim 3, characterized in that: an included angle alpha is formed between the central lines of the two screw holes (17), an included angle beta is formed between the centers of the two positioning stop pins (8) and the connecting line of the centers of the limiting plates (9), and alpha = beta.

5. The aluminum alloy part nail hole facing end surface limiting device as recited in claim 1, 2 or 4, wherein: after the two limiting rods (11) are positioned and fixed, the length difference (L1-L2) of the two limiting rods (11) is consistent with the height difference delta h of the two planes to be machined of the part (2) to be machined.

6. The aluminum alloy part nail hole passing spot facing end face limiting device as recited in claim 1, wherein: one end of the connecting plate (4) is provided with a round hole (13) capable of penetrating through the main shaft sleeve (6), more than two screw holes (12) are annularly distributed on the periphery of the round hole (13), each screw hole (12) is communicated with the round hole (13), and a screw (5) capable of pushing against the main shaft sleeve (6) from the top end is installed in each screw hole (12).

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