阅读说明：本技术 一种用于螺旋箍筋加工的变直径胎具 (Variable-diameter mould for machining spiral stirrup ) 是由 陈艳 刘建国 刘北贤 谭小聪 于 2020-06-29 设计创作，主要内容包括：本发明公开了一种用于螺旋箍筋加工的变直径胎具,属于螺旋箍筋加工制造技术领域,其主要设置了枢纽转轴和多个沿枢纽转轴的周向均匀间隔设置的外周杆来形成螺旋箍筋的加工胎具,其中,随着枢纽转轴沿一方向围绕自身轴线的转动,螺纹连接于其外周之上的第一移动螺母和第二移动螺母即会相向或相背移动,从而使改变第一径向杆和第二径向杆的角度,进而改变枢纽转轴与外周杆之间在枢纽转轴径向上的间距。当各个外周杆背离枢纽转轴的一侧的外周面所限定出的虚圆与螺旋箍筋内径一致时,实施人员即可进行螺旋箍筋的弯制工序。本发明可有效应用于多规格螺纹箍筋的弯制工序。(The invention discloses a variable-diameter mould for machining a spiral stirrup, which belongs to the technical field of machining and manufacturing of spiral stirrups and mainly comprises a pivot rotating shaft and a plurality of peripheral rods uniformly arranged at intervals along the circumferential direction of the pivot rotating shaft to form the machining mould for the spiral stirrup, wherein a first moving nut and a second moving nut which are in threaded connection on the peripheries of the pivot rotating shaft can move towards or away from each other along with the rotation of the pivot rotating shaft around the axis of the pivot rotating shaft in one direction, so that the angles of a first radial rod and a second radial rod are changed, and the distance between the pivot rotating shaft and the peripheral rods in the radial direction of the pivot rotating shaft is further changed. When the virtual circle defined by the outer peripheral surface of one side of each outer peripheral rod, which deviates from the pivot rotating shaft, is consistent with the inner diameter of the spiral stirrup, the operator can perform the bending process of the spiral stirrup. The method can be effectively applied to the bending process of the multi-specification thread stirrup.)

1. A variable diameter mould for spiral stirrup processing is characterized by comprising:

the hinge comprises a hinge rotating shaft, a first thread section and a second thread section are respectively arranged on the periphery of the hinge rotating shaft along the axial direction of the hinge rotating shaft, and the thread turning directions of the first thread section and the second thread section are opposite;

the first moving nut is in threaded connection with a first threaded section of the hinge rotating shaft, and the second moving nut is in threaded connection with a second threaded section of the hinge rotating shaft; and a process for the preparation of a coating,

the peripheral rods are uniformly distributed on the outer side of the pivot rotating shaft at intervals along the circumferential direction of the pivot rotating shaft, and the axial direction of each peripheral rod is parallel to the axial direction of the pivot rotating shaft;

wherein, all be equipped with first radial pole and the radial pole of second between each periphery pole and the pivot, the one end and the periphery pole of first radial pole are articulated mutually, and its other end and first removal nut are articulated mutually, the one end and the periphery pole of the radial pole of second are articulated mutually, and its other end and second removal nut are articulated mutually, first radial pole and the radial pole of second and the articulated position between the pivot is in same department.

2. The variable diameter die for spiral stirrup processing according to claim 1, wherein the number of the peripheral rods is 5.

3. The mold for manufacturing a spiral stirrup according to claim 1, wherein the outer circumference of the axial cross section of the outer rod is mainly composed of a circular arc section and a linear section, the circular arc section is disposed on the side of the outer rod facing away from the pivot axis, and the linear section is disposed on the side of the outer rod facing toward the pivot axis.

4. The variable diameter die for spiral stirrup machining according to claim 3, wherein a protruding hinge table is fixedly connected to the portion of the outer peripheral rod constituting the straight section, for hinge connection with the first radial rod and the second radial rod.

5. The variable diameter clamping fixture for machining the spiral stirrup according to claim 3, further comprising an auxiliary locking rod, wherein the axial direction of the auxiliary locking rod is parallel to the axial direction of the pivot shaft, two ends of the auxiliary locking rod respectively penetrate through the first movable nut and the second movable nut, the auxiliary locking rod is arranged on the outer side of the pivot shaft, and the auxiliary locking rod is respectively in sliding fit with the first movable nut and the second movable nut and can be pulled out of the first movable nut and the second movable nut; the auxiliary locking rod is sequentially detachably connected with two limiting parts along the axial direction of the auxiliary locking rod, and the two limiting parts are located between the first movable nut and the second movable nut and respectively abut against the first movable nut and the second movable nut.

6. The variable diameter die for screw stirrup machining according to claim 5, wherein the stopper is a stopper bolt inserted perpendicularly into the auxiliary lock rod.

7. The variable diameter die for screw stirrup machining according to claim 6, wherein the auxiliary locking rod is provided with a plurality of threaded holes along its axial direction at regular intervals to match the thread sections of the stop bolts, so that the two stop nuts can be selectively threaded in the corresponding threaded holes to adjust the distance between the two stop bolts in the axial direction of the auxiliary locking rod.

Technical Field

The invention relates to the technical field of spiral stirrup processing and manufacturing, in particular to a variable-diameter mould for processing a spiral stirrup.

Background

The spiral stirrup is a basic component commonly used for concrete cylinder pouring, and its overall shape is the spiral and extends the form, and when concrete application, it mainly buries in the concrete cylinder within, plays circumference parcel supporting role to avoid concrete cylinder defects such as fracture to appear after pouring. When the project is implemented, the diameters of the concrete cylinders are various, so that the concrete requirements for the diameters of the spiral stirrups are various, when the spiral stirrups are processed and bent to form each time, a set of special moulds which are in a cylindrical shape and have specific diameters need to be correspondingly manufactured, and the peripheral surfaces of the moulds are used as forming surfaces to be attached and bent to form the spiral stirrups. However, the manufacturing capability of project implementation sites is limited, the manufacturing and implementation cost of multiple sets of clamping fixtures is high, and the storage is difficult.

Disclosure of Invention

The invention aims to provide a variable-diameter mould for machining spiral stirrups, which can be effectively applied to machining processes of spiral stirrups with different diameters.

The scheme adopted by the invention for solving the technical problems is as follows:

a variable diameter mould for spiral stirrup processing comprises:

the hinge comprises a hinge rotating shaft, a first thread section and a second thread section are respectively arranged on the periphery of the hinge rotating shaft along the axial direction of the hinge rotating shaft, and the thread turning directions of the first thread section and the second thread section are opposite;

the first moving nut is in threaded connection with a first threaded section of the hinge rotating shaft, and the second moving nut is in threaded connection with a second threaded section of the hinge rotating shaft; and a process for the preparation of a coating,

the peripheral rods are uniformly distributed on the outer side of the pivot rotating shaft at intervals along the circumferential direction of the pivot rotating shaft, and the axial direction of each peripheral rod is parallel to the axial direction of the pivot rotating shaft;

wherein, all be equipped with first radial pole and the radial pole of second between each periphery pole and the pivot, the one end and the periphery pole of first radial pole are articulated mutually, and its other end and first removal nut are articulated mutually, the one end and the periphery pole of the radial pole of second are articulated mutually, and its other end and second removal nut are articulated mutually, first radial pole and the radial pole of second and the articulated position between the pivot is in same department.

Preferably, the number of the peripheral rods is 5.

Preferably, the outer periphery of the axial cross section of the outer peripheral rod mainly comprises an arc section and a straight section, the arc section is arranged on one side of the outer peripheral rod, which is back to the pivot rotating shaft, and the straight section is arranged on one side of the outer peripheral rod, which is facing to the pivot rotating shaft.

Preferably, the part of the outer circumference rod forming the straight line section is fixedly connected with a protruding hinge table for being hinged with the first radial rod and the second radial rod.

Preferably, the hinge further comprises an auxiliary locking rod, the axial direction of the auxiliary locking rod is parallel to the axial direction of the hinge rotating shaft, two ends of the auxiliary locking rod respectively penetrate through the first moving nut and the second moving nut, the auxiliary locking rod is arranged on the outer side of the hinge rotating shaft, and the auxiliary locking rod is respectively in sliding fit with the first moving nut and the second moving nut and can be pulled out of the first moving nut and the second moving nut; the auxiliary locking rod is sequentially detachably connected with two limiting parts along the axial direction of the auxiliary locking rod, and the two limiting parts are located between the first movable nut and the second movable nut and respectively abut against the first movable nut and the second movable nut.

Preferably, the stopper is a stopper bolt vertically inserted into the auxiliary locking bar.

Preferably, the auxiliary locking rod is provided with a plurality of threaded holes matched with the threaded sections of the limiting bolts at equal intervals along the axial direction of the auxiliary locking rod, so that the two stop nuts can be selectively threaded in the corresponding threaded holes, and the distance between the two limiting bolts in the axial direction of the auxiliary locking rod is adjusted.

Due to the adoption of the technical scheme, the invention has the beneficial effects that:

the invention mainly provides a processing mould for forming spiral stirrups by a pivot rotating shaft and a plurality of peripheral rods uniformly arranged at intervals along the circumferential direction of the pivot rotating shaft, wherein along with the rotation of the pivot rotating shaft around the axis of the pivot rotating shaft along one direction, a first moving nut and a second moving nut which are in threaded connection on the periphery of the pivot rotating shaft can move in the opposite direction or in the opposite direction, so that the angles of a first radial rod and a second radial rod are changed, and the distance between the pivot rotating shaft and the peripheral rods in the radial direction of the pivot rotating shaft is further changed. When the virtual circle defined by the outer peripheral surface of one side of each outer peripheral rod, which deviates from the pivot rotating shaft, is consistent with the inner diameter of the spiral stirrup, the operator can perform the bending process of the spiral stirrup.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural view of example 1 of the present invention;

fig. 2 is a schematic cross-sectional view taken along line a-a in fig. 1.

[ Specification of symbols ]

10-a pivot rotating shaft, 11-a first thread section, 12-a second thread section, 21-a first moving nut, 22-a second moving nut, 30-an outer circumference rod, 31-an arc section, 32-a straight section, 33-a hinging table, 41-a first radial rod, 42-a second radial rod, 51-an auxiliary locking rod and 52-a limiting bolt.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are usually placed in when used, the terms are only used for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the appearances of the terms "first," "second," and the like in the description of the present invention are only used for distinguishing between the descriptions and are not intended to indicate or imply relative importance.

Furthermore, the terms "horizontal", "vertical" and the like when used in the description of the present invention do not require that the components be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.