阅读说明：本技术 防止感应加热热影响区过长的保护工装 (Protection tool for preventing overlong induction heating heat affected zone ) 是由 刘勇 耿起立 徐畅 张默 蒋玲欢 于 2021-09-29 设计创作，主要内容包括：本发明公开了一种防止感应加热热影响区过长的保护工装,其特征在于；保护套筒(1)一端设置的螺纹拧入隔热转接套(2)一端,隔热转接套(2)另一端插入手柄(4)拧入紧固螺钉(3)固定,保护套筒(1)另一端安装有加热线圈(5)。本发明可以满足高端紧固件部分特殊性能中的高温持久性能、抗疲劳性能要求,感应加热均匀,产品质量好。(The invention discloses a protection tool for preventing an induction heating heat affected zone from being overlong, which is characterized in that; the screw thread that protective sleeve (1) one end set up is twisted and is insulated from heat switching cover (2) one end, and it is fixed that thermal-insulated switching cover (2) other end inserts handle (4) and twists fastening screw (3), and heating coil (5) are installed to protective sleeve (1) other end. The invention can meet the requirements of high-temperature durability and fatigue resistance in special performances of a high-end fastener part, and has uniform induction heating and good product quality.)

1. A protection tool for preventing an induction heating heat affected zone from being overlong is characterized in that; the screw thread that protective sleeve (1) one end set up is twisted and is insulated from heat switching cover (2) one end, and it is fixed that thermal-insulated switching cover (2) other end inserts handle (4) and twists fastening screw (3), and heating coil (5) are installed to protective sleeve (1) other end.

2. The protection tool for preventing the induction heating heat affected zone from being too long as set forth in claim 1, wherein; the other end of the protective sleeve (1) is provided with a flat-bottom blind hole.

3. The protection tool for preventing the induction heating heat affected zone from being too long as set forth in claim 1, wherein; the handle (4) is wooden.

4. The guided hot heading die of claim 1, wherein; the heating coil (5) is helical.

Technical Field

The invention belongs to the technical field of machinery, and particularly relates to a protection tool for preventing an induction heating heat affected zone from being too long.

Background

For a long time, when the head of a high-end fastener made of special materials (MP 159 or GH 159) is subjected to hot heading forming, the induction heating length cannot be accurately controlled, and a heat affected zone at a position where the head is connected with the rod is often too long after the hot heading without any protection, so that the high-temperature durability and the fatigue resistance of the special properties of the high-end fastener part cannot meet the requirements, and the product quality is poor.

Disclosure of Invention

The invention aims to overcome the defects and provide a protection tool which can meet the requirements of high-temperature durability and fatigue resistance in special performance of a high-end fastener part, has uniform high induction heating and good product quality and prevents an induction heating heat affected zone from being overlong.

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

the invention discloses a protection tool for preventing an induction heating heat affected zone from being overlong, which is characterized in that; the screw thread that protective sleeve one end set up is twisted thermal-insulated switching cover one end, and it is fixed that thermal-insulated switching cover other end inserts the handle and twists fastening screw, and the heating coil is installed to the protective sleeve other end.

The other end of the protective sleeve is provided with a flat-bottom blind hole.

The handle is wooden.

The heating coil is helical.

Compared with the prior art, the invention has obvious beneficial effects; the technical scheme shows that: twist thermal-insulated switching cover one end through the screw thread that sets up at protective sleeve one end, it is fixed that thermal-insulated switching cover other end inserts the handle and twists fastening screw, and heating coil is installed to the protective sleeve other end. The part head rod is inserted into a flat-bottom blind hole formed in the other end of the protection sleeve, the heating area is inserted into the heating coil to be heated, the protection sleeve protects a protection area of a head rod bordering position of a part to be formed by upsetting, and the effect of preventing the overlong heat affected area of the part head rod is achieved. The tool mainly comprises a protective sleeve (made of red copper material), a heat insulation adapter sleeve (made of common carbon steel or cast iron), a handle, a wood bar and fastening screws. The protective sleeve is round in shape (the shape size is about 1.3-1.5 times of the outer diameter of a protective part), the length is determined according to actual needs, one end of the protective sleeve is provided with a flat-bottomed blind hole, the inner diameter of the blind hole is 0.5mm larger than the outer diameter of the protective part, the depth is the protective length of the part, and the other end of the protective sleeve is provided with external threads, so that the protective sleeve is convenient, firm and reliable to replace; the heat insulation adapter sleeve is circular in shape (the size is consistent with that of the protective sleeve), external threads with the same specification are matched with the matched end of the protective sleeve, a handle mounting end is arranged at the other end of the heat insulation adapter sleeve, a handle mounting hole is machined, the size of the hole is matched with a wood stick handle, and a fastening screw mounting hole is machined in the middle of the handle mounting hole in the axial direction and used for fastening the handle; the handle appearance is circular, and its size satisfies and overlaps the cooperation and be convenient for handheld operation with thermal-insulated switching. When the special material part is subjected to hot upsetting, the length required to be protected by the part is placed into the flat-bottom blind hole of the protective sleeve, the part is lightly pressed to the bottom, then the part is placed into the induction coil to be heated, when the induction coil is heated, due to the skin effect of induction heating and the protective sleeve is arranged outside the part protective area, the induction coil only heats the part exposed outside the protective copper sleeve and one end of the heating protective sleeve close to the induction coil, the part which is heated to the inside of the protective area needs to pass through a heat conduction mode, and the induction heating time is very short, so that the heat transfer from the protective sleeve to the part in the part protective area is limited, the temperature of the part heating area reaches the corresponding upsetting temperature, the temperature of the part in the protective area does not reach the temperature of the heat affected area, and the head of the finally manufactured part prevents the length of the heat affected area at the joint of the head rod, the function of protecting the heat affected zone of the head and the rod of the part is achieved, and finally the related performance of the high-end fastener made of the material meets the requirements; in addition, the protective sleeve and the heat insulation adapter sleeve of the tool are designed with external threads and internal threads with the same thread specifications, so that the protective sleeve is only required to be replaced when parts with different lengths are protected, the whole tool does not need to be replaced, and the tool has certain universality; secondly, a groove with the width of 3mm is designed at the position where the heat insulation adapter sleeve of the tool is matched with the protective sleeve, so that the handle is prevented from being burnt out due to heat transferred to the handle direction, the cooling frequency of the tool during working is reduced, and the production and processing efficiency is improved; finally, the tool is provided with a handle, an operator can hold the handle to rotate at a certain rotating speed during use, the uniformity of induction heating is improved, and the consistency of the fluidity of the metal at the head is ensured, so that the forming size of the head is more stable, and the product quality is improved. In summary; the high-end fastener part has high temperature durability and fatigue resistance in special performances, meets the requirements, and has high induction heating uniformity and good product quality.

Drawings

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

FIG. 2 is a schematic view of the present invention with the heating coil removed;

fig. 3 is a schematic view of the construction of a protective sleeve of the present invention;

FIG. 4 is a schematic structural view of the heat insulating adapter sleeve of the present invention;

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

In the drawings, reference numerals

1. The heating device comprises a protection sleeve, 2 parts of a heat insulation adapter sleeve, 3 parts of a fastening screw, 4 parts of a handle, 5 parts of a heating coil, 6 parts of a protection area and 8 heating areas.

Detailed Description

The details of the embodiments, structures, features and functions according to the present invention are described in the following detailed description and the preferred embodiments.

The invention discloses a protection tool for preventing an induction heating heat affected zone from being overlong, which is characterized in that; the screw thread that protective sleeve 1 one end set up is twisted and is thermal-insulated switching cover 2 one end, and it is fixed that thermal-insulated switching cover 2 other end inserts handle 4 and twists fastening screw 3, and heating coil 5 is installed to the protective sleeve 1 other end.

The other end of the protective sleeve 1 is provided with a flat-bottom blind hole.

The handle 4 is wooden.

The heating coil 5 is spiral.

When in use, referring to fig. 5, the length to be protected of the part 6 to be protected is put into the flat-bottomed blind hole of the protective sleeve 1 and lightly pressed to the bottom, then the part 6 to be heated is put into the induction coil 5 for heating, when the induction coil 5 is heated, due to the skin effect of induction heating, and the protective sleeve 1 is arranged outside the protective area 7 of the part 6, the part 6 exposed outside the protective sleeve 1 and one end of the heating protective sleeve 1 close to the induction coil 5 are heated by the induction coil 5, when the part 6 in the protective area 7 is heated, the heat transmission from the protective sleeve 1 to the protective area 7 of the part 6 is limited due to the very short induction heating time, so that the temperature of the heating area 8 of the part 6 reaches the corresponding upsetting temperature, while the temperature of the part 6 in the protective area 7 does not reach the temperature of the heat-affected area, and the head of the finally upset part 6 prevents the length of the heat-affected area at the joint of the head rod from being too long, the function of protecting the heat affected zone of the 6-head rod of the part is achieved, and finally the related performance of the high-end fastener made of the material meets the requirements; in addition, the protective sleeve 1 and the heat insulation adapter sleeve 2 of the tool are designed with external threads and internal threads with the same thread specifications, so that the protective sleeve 1 is only required to be replaced when parts 6 with different lengths are protected, the whole tool does not need to be replaced, and the tool has certain universality; secondly, a groove with the width of 3mm is designed at the position where the heat insulation adapter sleeve 2 of the tool is matched with the protective sleeve 1, so that the handle 4 is prevented from being burnt out due to heat transfer towards the handle 4, the cooling frequency of the tool during working is reduced, and the production and processing efficiency is improved; this frock design has handle 4, and the operator can hold handle 4 during the use and rotate according to certain rotational speed, improves induction heating's homogeneity, guarantees that the mobility of head metal is unanimous, makes the head shaping dimension more stable, has improved product quality.

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.