阅读说明：本技术 高精度螺栓的螺纹成型托架 (Thread forming bracket of high-precision bolt ) 是由 徐畅 黄建凤 李健 隋天龙 吴强 于 2020-06-29 设计创作，主要内容包括：本发明公开了一种高精度螺栓的螺纹成型托架,V形块(1)、调节螺母(2)、调节螺钉(3)、支撑弹簧(4),其特征在于：托架底座(6)上固定连接有限位柱(5),限位柱(5)上可上下移动地安装有V形块(1),V形块(1)顶部设置有V形槽,V形块(1)下部装有调节螺钉(3),调节螺钉(3)上配合连接有调节螺母(2),调节螺母(2)和托架底座(6)之间安装有支撑弹簧(4),支撑弹簧(4)套装于调节螺钉(3)外部。本发明结构简单、合格率高、稳定高效、操作便捷,适合高精度螺栓的螺纹成型托夹的推广使用。(The invention discloses a thread forming bracket of a high-precision bolt, which comprises a V-shaped block (1), an adjusting nut (2), an adjusting screw (3) and a supporting spring (4), and is characterized in that: spacing post (5) of fixedly connected with on bracket base (6), install V-arrangement piece (1) on spacing post (5) with reciprocating, V-arrangement piece (1) top is provided with the V-arrangement groove, adjusting screw (3) are equipped with to V-arrangement piece (1) lower part, cooperation on adjusting screw (3) is connected with adjusting nut (2), install supporting spring (4) between adjusting nut (2) and bracket base (6), supporting spring (4) suit is in adjusting screw (3) outside. The screw thread forming bracket clamp is simple in structure, high in qualification rate, stable, efficient, convenient to operate and suitable for popularization and application of the screw thread forming bracket clamp of the high-precision bolt.)

1. The utility model provides a thread forming bracket of high accuracy bolt, includes V-arrangement piece (1), adjusting nut (2), adjusting screw (3), supporting spring (4), its characterized in that: spacing post (5) of fixedly connected with on bracket base (6), install V-arrangement piece (1) on spacing post (5) with reciprocating, V-arrangement piece (1) top is provided with the V-arrangement groove, adjusting screw (3) are equipped with to V-arrangement piece (1) lower part, cooperation on adjusting screw (3) is connected with adjusting nut (2), install supporting spring (4) between adjusting nut (2) and bracket base (6), supporting spring (4) suit is in adjusting screw (3) outside.

2. The thread forming bracket for a high precision bolt according to claim 1, wherein: the two sides of the bracket base (6) are fixedly connected with limit columns (5), and the tops of the limit columns (5) are arranged in rectangular grooves formed in the bottom of the V-shaped block (1).

3. The thread forming bracket for a high precision bolt according to claim 1, wherein: a V-shaped groove is arranged in the middle of the top of the V-shaped block (1).

Technical Field

The invention belongs to the technical field of machining auxiliary devices, and particularly relates to a thread forming bracket of a high-precision bolt.

Background

The high-precision bolt (as shown in the attached figure 3) is widely applied to the aeroengine, the high-precision bolt has high requirements on the perpendicularity and the runout of the bolt during installation, and the pitch diameter of the thread is usually set to be 0.025 for the runout of the light rod. The traditional thread forming mainly adopts a thread rolling mode, thread rolling wheels are arranged on mutually parallel shafts, workpieces are driven by the thread rolling wheels to rotate, and the surfaces of the workpieces are radially extruded to form threads. The thread rolling machine is provided with a positioning ejector rod, the thread rolling of the part is radially arranged on the support piece, and a thread rolling worker supports the polished rod part of the bolt by hand before rolling, as shown in figure 4. The processing method mainly has the following problems: the support sheet only supports the thread rolling diameter, and the head of a workpiece are heavy during rolling, so that the head and the head of a part can droop in the rolling process, the part is unqualified in jumping, and the thread forming requirement of the existing high-precision bolt can not be met.

Disclosure of Invention

The invention aims to overcome the defects and provide the thread forming bracket for the high-precision bolt, which has the advantages of simple structure, high qualification rate, stability, high efficiency and convenience in operation.

The purpose of the invention and the main technical problem of solving the invention are realized by adopting the following technical scheme:

the thread forming bracket of the high-precision bolt comprises a V-shaped block, an adjusting nut, an adjusting screw and a supporting spring, wherein: the bracket comprises a bracket base and is characterized in that a limiting column is fixedly connected to the bracket base, a V-shaped block is mounted on the limiting column in a vertically movable mode, a V-shaped groove is formed in the top of the V-shaped block, an adjusting screw is mounted on the lower portion of the V-shaped block, an adjusting nut is connected to the adjusting screw in a matched mode, a supporting spring is mounted between the adjusting nut and the bracket base, and the supporting spring is sleeved outside the adjusting screw.

Above-mentioned thread forming bracket of high accuracy bolt, wherein: the equal fixedly connected with spacing post in bracket base both sides, and the rectangle cell body that V-arrangement piece bottom set up is arranged in to spacing post top.

Above-mentioned thread forming bracket of high accuracy bolt, wherein: the right middle of the top of the V-shaped block is provided with a V-shaped groove.

Compared with the prior art, the invention has obvious advantages and beneficial effects. According to the technical scheme, in the thread forming bracket of the high-precision bolt, the bracket base is fixedly connected with the limiting column, and the top of the limiting column is arranged in the rectangular groove body arranged at the bottom of the V-shaped block, so that the V-shaped block moves up and down; the top of the V-shaped block is provided with a V-shaped groove, so that the bolt to be processed can be conveniently installed by means of the V-shaped groove; adjusting screw is equipped with to V-arrangement piece lower part, and adjusting screw goes up the cooperation and is connected with adjusting nut, installs supporting spring between adjusting nut and the bracket base, and supporting spring suit has realized the high fine setting to V-arrangement piece with the help of adjusting screw and adjusting nut in the adjusting screw outside, guarantees that the screw pitch diameter is the benchmark after the roll extrusion screw and beats for the pole and satisfy the high accuracy bolt requirement. In a word, the screw thread forming bracket clamp is simple in structure, high in qualification rate, stable, efficient, convenient to operate and suitable for popularization and use of the screw thread forming bracket clamp of the high-precision bolt.

Drawings

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

FIG. 2 is a right side view of FIG. 1;

FIG. 3 is a schematic structural view of a high-precision bolt;

FIG. 4 is a schematic view of a rolled thread forming structure;

fig. 5 is a state diagram of the present invention in use.

The labels in the figure are:

1. a V-shaped block; 2. adjusting the nut; 3. an adjusting screw; 4. a support spring; 5. a limiting column; 6. a bracket base; 7. a high-precision bolt; 8. a top rod; 9. and (7) supporting the chip.

Detailed Description

The following detailed description of embodiments, structures, features and effects of the thread forming bracket for a high-precision bolt according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.

Referring to fig. 1 to 2, the thread forming bracket for a high-precision bolt of the present invention includes a V-block 1, an adjusting nut 2, an adjusting screw 3, and a support spring 4, wherein: the upper portion of the bracket base 6 is fixedly connected with a limiting column 5, a V-shaped block 1 is mounted on the limiting column 5 in a vertically movable mode, a V-shaped groove is formed in the top of the V-shaped block 1, an adjusting screw 3 is mounted on the lower portion of the V-shaped block 1, an adjusting nut 2 is connected to the adjusting screw 3 in a matched mode, a supporting spring 4 is mounted between the adjusting nut 2 and the bracket base 6, and the supporting spring 4 is sleeved on the outer portion of the adjusting screw 3. The equal fixedly connected with spacing post 5 in 6 both sides of bracket base, and the rectangle cell body that V-arrangement piece 1 bottom set up is arranged in at 5 tops of spacing post. The middle of the top of the V-shaped block 1 is provided with a V-shaped groove.

When in use, referring to fig. 5, the bracket is firstly arranged on a thread rolling machine, the thread rolling diameter of the bolt to be processed is arranged on the supporting piece 9, and the ejector rod 8 is adopted to longitudinally position the bolt to be processed; and then, the height of the V-shaped block 1 is finely adjusted by adjusting the adjusting screw 3 and the adjusting nut 2, so that the V-shaped block 1 supports a polished rod part of the bolt to be processed, and the phenomenon that the head is heavy and the feet are light when rolling is avoided, and the thread can be rolled to obtain the high-precision bolt 7. The screw thread forming bracket clamp is simple in structure, high in qualification rate, stable, efficient, convenient to operate and suitable for popularization and application of the screw thread forming bracket clamp of the high-precision bolt.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention are within the scope of the present invention without departing from the technical spirit of the present invention.