A heat treatment hanging clamp
By designing a heat treatment hanging fixture and adopting a combination structure of sleeve, crossbeam and support block, the problem of deformation of long sheet metal parts during heat treatment was solved, the flatness and quality of the parts were guaranteed, and the pass rate of the parts was improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI HONGDU AVIATION IND GRP
- Filing Date
- 2025-07-24
- Publication Date
- 2026-07-24
AI Technical Summary
In heat treatment production, long sheet metal parts are prone to deformation when suspended in the furnace, resulting in bending, twisting and dimensional deviations, which affect subsequent processing and assembly.
Design a heat treatment hanging fixture, including a sleeve, a crossbeam, and a support block. The sleeve is fitted onto the central shaft of the material frame, the crossbeam is mounted on the sleeve and tilted up to prevent parts from slipping, and the support block is used to support the crossbeam. It is matched with the central shaft of the material frame through a waist-shaped hole, and the height is adjusted by shims to form an integral hanging structure.
Reduce part deformation, ensure the flatness and quality of parts, improve the first-pass yield, and reduce the scrap rate of parts.
Smart Images

Figure CN224547849U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a heat treatment hanging fixture for vertically hanging long sheet metal parts in heat treatment production. Background Technology
[0002] In heat treatment production, long sheet metal parts need to be vertically suspended in the heat treatment furnace. Because the parts are relatively long, a hanging fixture needs to be designed to suspend, support, and reduce deformation during furnace loading. Deformation of the parts can result in bending, twisting, and dimensional errors. These deformations will affect subsequent processing and assembly. Utility Model Content
[0003] The purpose of this invention is to provide a heat treatment hanging fixture that allows long sheet metal parts to be vertically suspended in the furnace during the heat treatment process, thereby reducing the deformation of the parts during heat treatment.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: a heat treatment hanging fixture, comprising a sleeve and a crossbeam; one end of the sleeve is fitted onto the central shaft of the material frame, and the other end is fitted with the crossbeam, with through holes split radially along the sleeve, the through holes engaging with holes on the central shaft of the material frame; one end of the crossbeam is mounted on the circumference of the sleeve, and the other end is a free end; the parts are hung on the crossbeam.
[0005] Preferably, the through hole on the sleeve is a waist-shaped hole.
[0006] Preferably, the free end of the crossbeam is tilted upwards to prevent parts from slipping off the end of the crossbeam.
[0007] Furthermore, it also includes a support block with a triangular cross-section. One end of the support block is fixed to the circumference of the sleeve, and the other end is fixed to the bottom surface of the crossbeam, which is used to support the crossbeam.
[0008] Furthermore, it also includes shims, which are fitted around the central axis of the material frame to adjust the height of the hanging clamp to accommodate the height of the parts.
[0009] Preferably, the bottom of the central shaft of the material frame is mounted on the base of the material rack.
[0010] Compared with existing technologies, this utility model has the following advantages: it can reduce part deformation, ensure the flatness requirements of parts, and prevent parts from bending or twisting. It ensures part quality, reduces part scrap, and guarantees a high first-pass yield rate. Attached Figure Description
[0011] Figure 1 Schematic diagram of the structure of this utility model embodiment;
[0012] Figure 2 This is a schematic diagram of the installation structure of an embodiment of this utility model;
[0013] Figure 1 In the middle, 1. sleeve; 2. crossbeam; 3. support block; 4. oblong hole;
[0014] Figure 2 In the middle, 10 is the hanging clamp; 20 is the gasket; 30 is the central shaft of the material rack; 40 is the part; 50 is the steel bar; and 60 is the base of the material rack. Detailed Implementation
[0015] The following is in conjunction with the appendix Figure 1-2 The present invention will be further described in detail as follows: A heat treatment hanging clamp includes a sleeve 1, a crossbeam 2, and a support block 3; as shown in the figure. Figure 1-2 As shown, sleeve 1 is fitted onto the central shaft 30 of the material frame, serving to fix, support, and bear loads; crossbeam 2 is welded onto sleeve 1, with the ends of crossbeam 2 raised to prevent part 40 from slipping off the ends of crossbeam 2, and part 40 is suspended on crossbeam 2; support block 3 supports crossbeam 2 from below, reinforcing crossbeam 2 and sleeve 1, and serving a supporting function; sleeve 1 has two oblong holes 4 radially split upwards, which fit with holes on the central shaft 30 of the material frame, and steel rods 50 are inserted into the holes. Fixing pins are made on the steel rods 50 extending out of sleeve 1 to prevent the steel rods from falling. The steel rods 50 are used for crane lifting, and the crane hook is hooked on the part of the steel rod extending out of sleeve.
[0016] In a preferred embodiment of this invention, the crossbeams 2 can be increased symmetrically, with each additional crossbeam providing an additional mounting position for a part. In this embodiment, crossbeams are designed in four directions, allowing parts to be hung in all four directions.
[0017] like Figure 2 As shown, the lifting clamp 10 is mounted on the central shaft 30 of the material rack, and the shims 20 are also mounted on the central shaft 30. The number of shims can be increased to adjust the height of the lifting clamp to accommodate the height of the part 40. The part 40 is hung on the crossbeam 2 of the lifting clamp 10. The steel bar 50 passes through the waist-shaped hole 4 of the clamp and the hole on the central shaft 30 of the material rack, making the lifting clamp 10 and the central shaft 30 of the material rack a whole, used by the crane to lift the clamp and the entire material rack. The bottom of the central shaft 30 of the material rack is mounted on the center of the material rack base 60. The central shaft 30 of the material rack and the material rack base 60 are also a whole, both belonging to the material rack.
[0018] Alternatively, a through hole can be made along the radial direction of the sleeve to accommodate the insertion of the crossbeam, so that the inserted end is located inside the through hole of the sleeve, thereby welding or screwing the two together, as long as it does not affect the installation position of the sleeve on the central axis of the material rack.
[0019] The above embodiments are merely preferred embodiments of this utility model and do not constitute a limitation thereof. Any extensions, modifications, and equivalent substitutions made by those skilled in the art without departing from the principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A heat treatment hanging clamp, characterized in that: Includes a sleeve and a crossbeam; one end of the sleeve is fitted onto the central shaft of the material frame, and the other end is fitted with the crossbeam. There are through holes along the radial direction of the sleeve, which fit with the holes on the central shaft of the material frame; one end of the crossbeam is installed on the circumference of the sleeve, and the other end is a free end; the parts are suspended on the crossbeam.
2. The heat treatment hanging clamp according to claim 1, characterized in that: The through hole on the sleeve is a waist-shaped hole.
3. The heat treatment hanging clamp according to claim 1, characterized in that: The free end of the crossbeam is tilted upwards to prevent parts from slipping off the end of the crossbeam.
4. The heat treatment hanging clamp according to claim 1, characterized in that: It also includes a support block, which has a triangular cross-section. One end of the support block is fixed to the circumference of the sleeve, and the other end is fixed to the bottom surface of the crossbeam, which is used to support the crossbeam.
5. The heat treatment hanging clamp according to claim 1, characterized in that: It also includes shims, which are fitted around the central axis of the material frame to adjust the height of the hanging clamp to accommodate the height of the parts.
6. The heat treatment hanging clamp according to claim 1, characterized in that: The bottom of the central shaft of the material frame is mounted on the base of the material rack.