CN218693992U - Expanded frock in lathe work - Google Patents

Abstract

The utility model discloses an expanding frock in lathe work, including the base, the field relates to lathe work the top middle part of base is equipped with the air chamber, the air chamber includes air inlet chamber and the even power air chamber of installing at air inlet chamber circumference surface, air inlet chamber and power air chamber intercommunication, the telescopic link has been inserted to the one end that power air chamber kept away from air inlet chamber, the trachea is installed to air inlet chamber's lower extreme, install two-way air pump after the trachea passes the base, the utility model discloses power air chamber has all been set up in four positions of air inlet chamber, when fixing a position rectangle chamber work piece, the inside telescopic link of four power air chambers all extends, and when the telescopic link rectangle of the left and right sides supported the both sides of chamber work piece, two power air chambers no longer admit air about and two power air chambers continue to admit air around and then two front and back continuation extensions, support the telescopic link until the front and back side internal surface with rectangle chamber work piece to realize that rectangle chamber work piece is fixed a position in four positions.

Description

Expanded frock in lathe work

Technical Field

The utility model relates to a lathe work technical field specifically is an expanding frock in lathe work.

Background

Turning refers to lathing as part of machining. Lathe machining mainly uses a lathe tool to perform lathe machining on a rotating rectangular cavity workpiece. The lathe is mainly used for processing shafts, discs, sleeves and other revolving body or non-revolving body rectangular cavity workpieces with revolving surfaces, and is the most widely used type of machine tool in machinery manufacturing and repairing factories;

for the processing of the disc, because the outer surface of the disc needs to be processed, an internal expansion tool is generally adopted to fix the disc, the inner center of the general disc is a circular cavity, and the triangular claws are adopted to perform internal expansion positioning, but some disc bodies exist, the inner center of the disc bodies is a rectangular cavity, the length and the width of the rectangular cavity are not equal, and the disc bodies adopt the triangular claws to perform internal expansion, so that the required effect cannot be achieved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an expanding frock in lathe work to solve the dish among the prior art, its center is the rectangle cavity, and the length and width inequality in rectangle cavity, this kind of dish body adopt the triangle claw internal expanding, then can not reach the problem of required effect.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an expanding frock in lathe work, includes the base, the top middle part of base is equipped with the air chamber, the air chamber includes air inlet chamber and the even power air chamber of installing at air inlet chamber circumference surface, air inlet chamber and power air chamber intercommunication, the one end that the air inlet chamber was kept away from to power air chamber has inserted the telescopic link, the trachea is installed to the lower extreme of air inlet chamber, install two-way air pump after the trachea passes the base.

Preferably, one end of the telescopic rod, which is far away from the air inlet chamber, is fixedly connected with an arc-shaped pressure head, and the arc-shaped pressure head is a rubber head.

Preferably, a guide rod is inserted into one end of the telescopic rod, which is positioned in the power air chamber, and the other end of the guide rod is exposed out of the air inlet chamber.

Preferably, one ends of the four guide rods, which are close to the air inlet chamber, are all fixed to each other, and a fixing rod is fixedly connected between the upper surfaces of the fixed connection parts of the end parts of the four guide rods and the upper surface of the air inlet chamber.

Preferably, the guide rod is a hexagonal column, and a hexagonal through hole is formed in the telescopic rod at a position corresponding to the guide rod.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses all set up power air chamber in four positions of air inlet chamber, when fixing a position rectangle chamber work piece, four inside telescopic links of power air chamber all extend, when the telescopic link of the left and right sides supports the both sides of rectangle chamber work piece, control two power air chambers and no longer admit air, and two power air chambers continue to admit air around and, and then two telescopic links 9 continue to extend around, support the front and back side internal surface of rectangle chamber work piece to realize rectangle chamber work piece and fix a position in four positions.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of the internal structure of the present invention;

fig. 2 is a top view of the present invention;

fig. 3 is an installation schematic diagram of the power air chamber of the present invention.

In the figure: 1. a bidirectional air pump; 2. a base; 3. a rectangular cavity workpiece; 4. an air tube; 5. an air chamber; 51. an air intake chamber; 52. a power air chamber; 6. a fixing rod; 7. a spring; 8. a guide bar; 9. a telescopic rod; 10. an arc-shaped pressure head.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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.

Referring to fig. 1, 2 and 3, in an embodiment of the present invention, an internal expanding tooling for lathe work includes a base 2, an air chamber 5 is disposed in the middle of the upper portion of the base 2, the air chamber 5 includes an air inlet chamber 51 and power air chambers 52 uniformly installed on the circumferential outer surface of the air inlet chamber 51, the air inlet chamber 51 is communicated with the power air chambers 52, an expansion link 9 is inserted into one end of the power air chamber 52 far away from the air inlet chamber 51, an air pipe 4 is installed at the lower end of the air inlet chamber 51, the air pipe 4 passes through the base 2 and is installed with a bidirectional air pump 1, air pumped out by the bidirectional air pump 1 reaches the inside of the air inlet chamber 51 through the air pipe 4 and then enters the inside of the power air chambers 52, the four expansion links 9 can be pushed, so that the four expansion links 9 extend, when the expansion links 9 on the left and right sides abut against both sides of a rectangular cavity workpiece 3, the left and right power air chambers 52 do not admit air, and the front and rear power air chambers 52 continue to admit air, and the front and rear expansion links 9 continue to extend until the inner surfaces on the front and rear sides of the rectangular cavity workpiece 3 are abutted against the inner surfaces;

as shown in fig. 1, in order to make the end portion of the telescopic rod 9 smoother and reduce the pressure loss to the rectangular cavity workpiece 3, an arc-shaped pressure head 10 is fixedly connected to one end of the telescopic rod 9 far away from the air inlet chamber 51, and the arc-shaped pressure head 10 is a rubber head, so as to further reduce the pressure loss;

with reference to fig. 1, in order to enable the telescopic rod 9 to be retracted into the power air chamber 52 after clamping is completed, a guide rod 8 is inserted into one end of the telescopic rod 9 located inside the power air chamber 52, and the other end of the guide rod 8 is exposed inside the air inlet chamber 51, a spring 7 is sleeved outside a part of the circumference of the guide rod 8 located inside the air inlet chamber 51, when the telescopic rod 9 is extended, the spring 7 is in a stretched state, when the bidirectional air pump 1 performs air suction, air inside the air inlet chamber 51 and the power air chamber 52 is pumped away, at this time, the telescopic rod 9 loses air pressure, the spring 7 has the capability of recovering a natural state, and further the spring 7 pulls the telescopic rod 9 back into the power air chamber 52, so as to achieve the purpose of loosening the rectangular cavity workpiece 3;

as shown in fig. 1, in order to make the guide rods 8 stably located inside the air chamber 5, one ends of the four guide rods 8 close to the air inlet chamber 51 are all fixed to each other, and a fixing rod 6 is fixedly connected between the upper surface of the end part fixed connection part of the four guide rods 8 and the upper surface of the air inlet chamber 51, and in order to ensure the guiding effect of the guide rods 8 on the telescopic rods 9 when the telescopic rods 9 are extended and retracted, the guide rods 8 are hexagonal columns, and hexagonal through holes matched with each other are formed in the positions inside the telescopic rods 9 corresponding to the guide rods 8.

The utility model discloses a theory of operation and use flow: when the device is used, the rectangular cavity workpiece 3 with different lengths and widths is placed on the upper surface of the base 2, gas pumped by the bidirectional air pump 1 firstly reaches the inside of the air inlet chamber 51 through the air pipe 4 and then enters the inside of the power air chambers 52, the four telescopic rods 9 can be pushed to extend, the four telescopic rods 9 extend until the arc-shaped pressure heads 10 on the left side and the right side abut against the two sides of the inner wall of the rectangular cavity workpiece 3, the left power air chamber 52 and the right power air chamber 52 do not admit air any more, the front power air chamber 52 and the rear power air chamber 52 continue to admit air, the front telescopic rods 9 and the rear telescopic rods 9 continue to extend until the front inner surfaces and the rear surfaces of the rectangular cavity workpiece 3 abut against each other, the spring 7 is in a stretched state, after turning is completed, the air in the air inlet chamber 51 and the power air chamber 52 is pumped away, the telescopic rods 9 lose air pressure, the spring 7 has the capability of recovering to a natural state, and the spring 7 pulls the telescopic rods 9 back to the inside of the power air chambers 52, so that the rectangular cavity workpiece 3 is loosened.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. The utility model provides an expanding frock in lathe work, includes base (2), its characterized in that: the air chamber (5) is arranged in the middle of the upper portion of the base (2), the air chamber (5) comprises an air inlet chamber (51) and an even power air chamber (52) installed on the outer surface of the circumference of the air inlet chamber (51), the air inlet chamber (51) is communicated with the power air chamber (52), a telescopic rod (9) is inserted into one end, far away from the air inlet chamber (51), of the power air chamber (52), an air pipe (4) is installed at the lower end of the air inlet chamber (51), and a bidirectional air pump (1) is installed after the air pipe (4) penetrates through the base (2).

2. The turning inner expansion type tool according to claim 1, characterized in that: one end of the telescopic rod (9) far away from the air inlet chamber (51) is fixedly connected with an arc-shaped pressure head (10), and the arc-shaped pressure head (10) is a rubber head.

3. The turning inner expansion type tool according to claim 1, characterized in that: the telescopic rod (9) is located one end of the inside of the power air chamber (52) and is inserted with the guide rod (8), the other end of the guide rod (8) is exposed in the air inlet chamber (51), and the spring (7) is sleeved outside the part of the circumference of the inside of the air inlet chamber (51) of the guide rod (8).

4. The turning inner expansion type tool according to claim 3, characterized in that: one ends of the four guide rods (8) close to the air inlet chamber (51) are all fixed to each other, and a fixing rod (6) is fixedly connected between the upper surface of the fixedly connected part of the end parts of the four guide rods (8) and the upper surface of the air inlet chamber (51).

5. The turning inner expansion type tool according to claim 4, characterized in that: the guide rod (8) is a hexagonal column, and a hexagonal through hole is formed in the telescopic rod (9) at a position corresponding to the guide rod (8).

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