CN213164160U - Quick-change tool for vertically boring precise stepped hole - Google Patents

Abstract

The utility model discloses a quick change frock of boring accurate shoulder hole immediately relates to the aeronautical machinery and makes the field, and for solving the current auxiliary fixtures anchor clamps clamping-force among the prior art not enough, hole center axis incline when very easily causing the part bore hole, the hole of boring forms ellipse circular and causes the condemned problem of part. The up end of backing plate is provided with backing plate locating hole and screw hole, the inside upper end of rocking arm part and lower extreme all are provided with the shoulder hole, the shoulder hole link up the rocking arm part, just the shoulder hole sets up structure as an organic whole with the rocking arm part, just the quick change bush includes bush and lower bushing, the diameter of going up the bush is the same with the diameter of shoulder hole, the diameter of lower bushing is the same with the diameter of backing plate locating hole, just the quick change bush respectively with backing plate and rocking arm part gomphosis, the clamp plate is located rocking arm part up end, just clamp plate and the laminating of rocking arm part.

Description

Quick-change tool for vertically boring precise stepped hole

Technical Field

The utility model relates to an aeronautical machinery makes technical field, specifically is a quick change frock of boring accurate shoulder hole immediately.

Background

When designing a mechanical part, the mechanical part not only needs to meet the use requirement, namely, the required working capacity, but also needs to meet the production requirement, otherwise, the mechanical part can not be manufactured, or the mechanical part can be manufactured, but the labor and the material are not economical. In particular production conditions, if the mechanical parts are designed to be easy to machine and the machining costs are low, such parts are known as mechanical parts with good manufacturability, also called mechanical components, which are non-detachable individual parts that make up the machine and are the basic unit of the machine. Traditionally, the processing of the hole structure of the part is mostly carried out by adopting a lathe, and particularly, the processing is carried out on the off-axis parts with precision size requirements such as precision holes, precision excircles and the like.

Rocker arm type part is common aircraft connecting piece, mainly is used for the transmission moment of torsion to realize the aircraft and controls, often has accurate pore structure in this type of rocker arm part's the design structure. When the traditional lathe is used for drilling, expanding and boring, the clamping surface at the outer end of the traditional lathe is short, the clamping force of the three-jaw chuck of the lathe is insufficient, the axis of a hole center of a part is easy to deflect when the part is bored, and the bored hole is elliptical, so that the part is scrapped. If a certain auxiliary tool clamp is adopted, such as a common turning clamp, the disassembly and assembly of the lathe surface are inconvenient, the positioning is inaccurate, and the risk of scrapping parts is caused; when the special turning fixture is adopted, a set of special fixture needs to be arranged for the rocker arm part of each figure number, so that the economic cost is high; therefore, the market urgently needs to develop a quick-change tool for vertically boring a precise stepped hole to help people solve the existing problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a quick change frock of boring accurate shoulder hole immediately to the current auxiliary fixtures anchor clamps clamping-force that proposes in solving above-mentioned background art is not enough, and hole center axis incline when very easily causing the part bore hole, the hole of boring forms ellipse circular and causes the condemned problem of part.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a quick change frock of boring accurate shoulder hole immediately, includes backing plate, rocking arm part, quick change bush and clamp plate, the up end of backing plate is provided with backing plate locating hole and screw hole, the inside upper end of rocking arm part and lower extreme all are provided with the shoulder hole, the shoulder hole link up the rocking arm part, just the shoulder hole sets up structure as an organic whole with the rocking arm part, just the quick change bush includes bush and lower bush, the diameter of going up the bush is the same with the diameter of shoulder hole, the diameter of lower bush is the same with the diameter of backing plate locating hole, just the quick change bush is respectively with backing plate and rocking arm part gomphosis, the clamp plate is located rocking arm part up end, just clamp plate and the laminating of rocking arm part.

Preferably, the outside of rocking arm part is provided with the precision finishing hole, the precision finishing hole is provided with two, and two the precision finishing hole all sets up structure as an organic whole with the rocking arm part, just the up end and the lower terminal surface of rocking arm part all are provided with recess and inclined plane portion, just the inside of rocking arm part is provided with the through-hole.

Preferably, one end of the pressing plate is provided with a notch, the notch and the pressing plate are arranged into an integral structure, and the diameter of the notch is larger than that of the stepped hole.

Preferably, the other end of the pressure plate is provided with an operation port, and the operation port and the pressure plate are arranged into an integral structure.

Preferably, the outer surface of the pressure plate is provided with a thread groove, the thread groove and the pressure plate are arranged into an integral structure, and the position of the thread groove corresponds to the position of the threaded hole.

Preferably, the upper end of the pressure plate is provided with a clamping bolt, and the clamping bolt penetrates through the thread groove and extends into the threaded hole to be in threaded connection with the base plate.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a setting through the quick change bush adopts series of quick change bushes to fix a position for this frock dismouting is nimble, and the commonality is good, can process the not accurate hole of unidimensional ladder, can guarantee position accuracy requirement such as shoulder hole concentricity, simultaneously, also can adopt this method to end mill shoulder hole terminal surface, and the effect is fine.

2. The utility model discloses a carry out spacing fixed through the clamp plate, realized by the change in traditional turning precision hole to the precision hole of boring immediately from changing the clamping mode, radially add the power with the three-jaw chuck and change into and immediately mill the axial and add the power for part bore hole adds man-hour more stable firm, can not cause the axle center incline, and the shoulder hole quality of processing out is also reliable and stable.

3. The utility model discloses a fixed mode of rocking arm part is fixed a position through clamp plate and quick change bush can be popularized and applied in industry at the quick change frock in the accurate hole of processing ladder, and especially the effect is more showing in the aspect of the processing of part in batches, and the advantage is more obvious, can increase substantially bore hole batch production efficiency, satisfies the production demand.

Drawings

Fig. 1 is a top view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is a schematic structural diagram of the rocker arm part of the present invention.

In the figure: 1. a base plate; 2. a rocker arm part; 3. pressing a plate; 4. precisely machining a hole; 5. a stepped hole; 6. a notch; 7. a thread groove; 8. clamping the bolt; 9. an operation port; 10. a base plate positioning hole; 11. a threaded hole; 12. quickly replacing the bushing; 13. a groove; 14. a through hole; 15. an inclined plane part; 16. an upper bushing; 17. and a lower bushing.

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.

Referring to fig. 1-3, the present invention provides an embodiment: a quick-change tool for vertically boring a precise stepped hole comprises a base plate 1, a rocker arm part 2, a quick-change bushing 12 and a pressing plate 3, wherein a base plate positioning hole 10 and a threaded hole 11 are formed in the upper end face of the base plate 1, stepped holes 5 are formed in the upper end and the lower end of the interior of the rocker arm part 2, the stepped holes 5 penetrate through the rocker arm part 2, the stepped holes 5 and the rocker arm part 2 are arranged into an integral structure, the quick-change bushing 12 comprises an upper bushing 16 and a lower bushing 17, the diameter of the upper bushing 16 is the same as that of the stepped holes 5, the diameter of the lower bushing 17 is the same as that of the base plate positioning hole 10, the quick-change bushing 12 is respectively embedded with the base plate 1 and the rocker arm part 2, the pressing plate 3 is located on the upper end face of the rocker arm part 2, the pressing plate 3 is attached to the rocker arm part 2, when the rocker arm part 2 is machined, the quick-change, the pressure plate 3 is used for pressing the rocker arm part 2, so that the whole rocker arm part 2 can be kept fixed, and the surface processing operation is convenient.

Further, the outside of rocking arm part 2 is provided with precision finishing hole 4, and precision finishing hole 4 is provided with two, and two precision finishing holes 4 all set up structure as an organic whole with rocking arm part 2, and rocking arm part 2's up end and lower terminal surface all are provided with recess 13 and inclined plane portion 15, and rocking arm part 2's inside is provided with through-hole 14, and fixed back can be on vertical digit control machine tool mill, bore the operation of precision finishing hole 4.

Further, the one end of clamp plate 3 is provided with breach 6, and breach 6 sets up structure as an organic whole with clamp plate 3, and the diameter of breach 6 is greater than the diameter of shoulder hole 5, keeps 2 overall balance and stability of rocking arm part through clamp plate 3.

Further, the other end of the pressing plate 3 is provided with an operation port 9, the operation port 9 and the pressing plate 3 are arranged into an integral structure, and the angle of the pressing plate 3 can be conveniently adjusted through the operation port 9.

Further, the outer surface of the pressing plate 3 is provided with a thread groove 7, the thread groove 7 and the pressing plate 3 are arranged into an integral structure, the position of the thread groove 7 corresponds to the position of the threaded hole 11, the pressing plate 3 is pressed down by rotating the clamping bolt 8, the pressing plate 3 extrudes the rocker arm part 2, and the rocker arm part 2 is kept stable on the base plate 1.

Further, clamping bolt 8 is installed to the upper end of clamp plate 3, and clamping bolt 8 passes thread groove 7 and extends to inside and backing plate 1 threaded connection of screw hole 11, is convenient for rocking arm part 2 to carry out the dismouting through clamping bolt 8.

The working principle is as follows: when in use, the lower bushing 17 is clamped into the positioning hole 10 of the backing plate, the upper bushing 16 at the upper end of the quick-change bushing 12 is clamped into the stepped hole 5 at the lower end of the rocker arm part 2, so that the stepped hole 5 and the positioning hole 10 of the backing plate are concentrically positioned, the quick-change bushing 12 has different sizes and specifications to adapt to the stepped hole 5 and the positioning hole 10 of the backing plate with different sizes and specifications, one end of the pressing plate 3 presses down the pressing plate 3 through rotating the clamping bolt 8, so that the pressing plate 3 is connected with the backing plate 1, the angle of the pressing plate 3 can be conveniently adjusted through the operation port 9, the pressing plate 3 presses down through rotating the clamping bolt 8, so that the rocker arm part 2 is pressed by the pressing plate 3, the rocker arm part 2 is kept stable on the backing plate 1, so that the precisely machined hole 4 on the surface of the rocker arm part 2 can be machined, and when the positioning and the clamping, the positions of the upper and lower stepped holes 5 of the rocker arm part 2 can be changed according to the operation, and the boring operation of the other side hole of the stepped hole 5 can be carried out.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. The utility model provides a quick change frock of accurate shoulder hole of boring immediately, includes backing plate (1), rocking arm part (2), quick change bush (12) and clamp plate (3), its characterized in that: the up end of backing plate (1) is provided with backing plate locating hole (10) and screw hole (11), the inside upper end of rocking arm part (2) and lower extreme all are provided with shoulder hole (5), shoulder hole (5) link up rocking arm part (2), just shoulder hole (5) set up structure as an organic whole with rocking arm part (2), just quick change bush (12) are including bush (16) and lower bushing (17), the diameter of going up bush (16) is the same with the diameter of shoulder hole (5), the diameter of lower bushing (17) is the same with the diameter of backing plate locating hole (10), just quick change bush (12) respectively with backing plate (1) and rocking arm part (2) gomphosis, clamp plate (3) are located rocking arm part (2) up end, just clamp plate (3) and rocking arm part (2) laminating.

2. The quick-change tool for vertically boring the precise stepped hole according to claim 1, wherein: the outside of rocking arm part (2) is provided with precision finishing hole (4), precision finishing hole (4) are provided with two, and two precision finishing hole (4) all set up structure as an organic whole with rocking arm part (2), just the up end and the lower terminal surface of rocking arm part (2) all are provided with recess (13) and inclined plane portion (15), just the inside of rocking arm part (2) is provided with through-hole (14).

3. The quick-change tool for vertically boring the precise stepped hole according to claim 1, wherein: one end of the pressing plate (3) is provided with a notch (6), the notch (6) and the pressing plate (3) are arranged into an integral structure, and the diameter of the notch (6) is larger than that of the stepped hole (5).

4. The quick-change tool for vertically boring the precise stepped hole according to claim 3, wherein: the other end of the pressing plate (3) is provided with an operation opening (9), and the operation opening (9) and the pressing plate (3) are arranged into an integral structure.

5. The quick-change tool for vertically boring the precise stepped hole according to claim 1, wherein: the outer surface of the pressing plate (3) is provided with a thread groove (7), the thread groove (7) and the pressing plate (3) are arranged into an integral structure, and the position of the thread groove (7) corresponds to the position of the threaded hole (11).

6. The quick-change tool for vertically boring the precise stepped hole according to claim 5, wherein: clamping bolt (8) are installed to the upper end of clamp plate (3), clamping bolt (8) pass thread groove (7) and extend to inside and backing plate (1) threaded connection of screw hole (11).

Images