Butt joint conveying structure of a double-column vertical heat treatment furnace
By designing a combination of a second track, a first track, a moving carriage, and a clamping structure in the heat treatment furnace, the problem of inconvenient fixation of irregularly shaped workpieces was solved, and the stability and movement stability of the workpieces during annealing were achieved, thus improving the annealing effect of the double-column vertical carriage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUILIN HONGCHENG PRECISION CNC MACHINE TOOL CO LTD
- Filing Date
- 2025-09-29
- Publication Date
- 2026-07-31
AI Technical Summary
The existing heat treatment furnace docking and conveying structure is inconvenient for fixing irregularly shaped workpieces on double-column vertical carriages, resulting in poor stability of the workpieces during annealing.
A heat treatment furnace docking and conveying structure was designed, including a second track, a first track, a moving vehicle, a transmission mechanism, and a clamping structure. By setting multiple clamping structures on the receiving box, irregularly shaped workpieces can be stably fixed, and the height of the connecting platform and the spacing between the clamping seats can be adjusted by the transmission mechanism to accommodate the fixing of workpieces of different specifications.
This improves the stability of irregularly shaped workpieces during movement, ensuring the stability and efficiency of annealing in the heat treatment furnace.
Smart Images

Figure CN224577361U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of heat treatment furnace conveying technology, and in particular relates to a docking conveying structure for a heat treatment furnace with a double-column vertical carriage. Background Technology
[0002] A heat treatment furnace is an industrial device that heats furnace materials for heat treatment. It can provide heat energy through electricity or fuel to perform processes such as annealing, quenching, tempering, and normalizing on metal workpieces to improve their mechanical, physical, and chemical properties.
[0003] In the existing technology, double-column trolleys need to be annealed using a heat treatment furnace. However, the existing heat treatment furnace docking and conveying structures mostly use only a single clamp for clamping and fixing during use. This makes it inconvenient for the docking and conveying structure to fix irregularly shaped workpieces on the double-column trolley, resulting in poor stability of the workpieces when placed in the heat treatment furnace for annealing, which is detrimental to the use of the double-column trolley for annealing. Utility Model Content
[0004] This utility model provides a docking conveyor structure for a heat treatment furnace with a double-column vertical carriage, aiming to solve the problem that the existing docking conveyor structure for heat treatment furnaces is inconvenient for fixing irregularly shaped workpieces on the double-column vertical carriage during use.
[0005] This utility model is implemented as follows: a heat treatment furnace docking and conveying structure with double column vertical carriages includes a second track set at the bottom of the inner cavity of the heat treatment furnace and a first track set horizontally at the front side of the heat treatment furnace. A first moving carriage is set at the top of the first track, a second moving carriage is set at the top of the second track, and a connecting platform that moves up and down above the second moving carriage through a transmission mechanism. A receiving box is fixedly connected to the upper surface of the connecting platform. Several clamping structures are provided on the upper surface of the receiving box. The multiple clamping structures are evenly spaced along the front end to the rear end of the receiving box. A first docking rail is fixedly connected to both sides of the top of the second track. A second docking rail adapted to the first docking rail is fixedly connected to both sides of the top of the first moving vehicle.
[0006] Preferably, a second limiting block is fixedly connected to the rear end of the top of the first docking rail, a third limiting block is fixedly connected to the front end of the top of the second docking rail, and a first limiting block is fixedly connected to both ends of the front and rear sides of the top of the first rail.
[0007] Preferably, a second connecting seat is fixedly connected to the front end face of the second mobile vehicle, and a first connecting seat is fixedly connected to the front side face of the first mobile vehicle.
[0008] Preferably, the transmission mechanism includes a transmission rod rotatably disposed between the connecting platform and the first moving vehicle. The front and rear ends of the transmission rod surface are provided with connecting threads, the threads of the two connecting threads being opposite. A first threaded sleeve is threadedly connected to the surface of the connecting thread. Crossbars are rotatably disposed on both sides of the first threaded sleeve. Second hinge members are rotatably connected to the four corners of the lower surface of the connecting platform. First hinge members are rotatably connected to the four corners of the upper surface of the first moving vehicle. The second hinge members and the first hinge members are rotatably connected through corresponding ends of the crossbars on the same side. A handle is fixedly connected to the front end of the transmission rod.
[0009] Preferably, the clamping structure includes a vertical threaded rod and two second threaded sleeves. The vertical threaded rod is rotatably disposed in the inner cavity of the receiving box. The two second threaded sleeves are respectively threaded to one end and the other end of the surface of the vertical threaded rod. A vertical block is vertically fixedly connected to the top of the second threaded sleeve. The top of the vertical block extends movably to the outside of the receiving box and is fixedly connected to a clamping seat. One end of the vertical threaded rod extends to the outside of the receiving box and is fixedly connected to a torsion handle.
[0010] Preferably, the top of the container has several horizontal openings evenly arranged along its length on both sides for the vertical blocks to move.
[0011] Beneficial effects Compared with the prior art, the beneficial effects of this utility model are: the heat treatment furnace docking and conveying structure of the double column vertical car of this utility model, after the irregular workpiece is placed on the top of the receiving box, the operator can clamp the irregular workpiece at different positions through multiple clamping structures, so as to stably fix the irregular workpiece on the upper surface of the receiving box, thereby improving the stability of the second moving car moving the irregular workpiece on the surface. Attached Figure Description
[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the structure of the second mobile vehicle and the receiving box in this utility model; Figure 3 This is a schematic diagram of the structure of the second mobile vehicle and the connecting platform in this utility model; Figure 4 This is a schematic diagram of the transmission mechanism in this utility model; Figure 5 This is a schematic diagram of the clamping structure in this utility model.
[0013] In the diagram: 1. First track; 2. First limiting block; 3. Second track; 4. First docking rail; 5. Second limiting block; 6. First moving carriage; 7. First connecting seat; 8. Second moving carriage; 9. Second docking rail; 10. Third limiting block; 11. Connecting platform; 12. Transmission rod; 13. Connecting thread; 14. First threaded sleeve; 15. First hinge; 16. Second hinge; 17. Handle; 18. Crossbar; 19. Receiving box; 20. Vertical threaded rod; 21. Second threaded sleeve; 22. Vertical block; 23. Torque handle; 24. Movable opening; 25. Clamping seat; 26. Second connecting seat. Detailed Implementation
[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0015] First Embodiment Please see Figure 1 and Figure 2 This utility model provides a technical solution: a double-column vertical car heat treatment furnace docking and conveying structure, including a second track 3 set at the bottom of the heat treatment furnace cavity and a first track 1 set horizontally at the front side of the heat treatment furnace. A first moving car 6 is set at the top of the first track 1, a second moving car 8 is set at the top of the second track 3, and a connecting platform 11 that moves up and down above the second moving car 8 through a transmission mechanism.
[0016] The upper surface of the connecting platform 11 is fixedly connected to the receiving box 19. The upper surface of the receiving box 19 is provided with several clamping structures, which are evenly distributed and spaced along the front end to the rear end of the receiving box 19.
[0017] The top of the second track 3 is fixedly connected to both sides of the first docking track 4, and the top of the first moving vehicle 6 is fixedly connected to both sides of the second docking track 9 that is adapted to the first docking track 4.
[0018] In this embodiment, after the irregularly shaped workpiece is placed on top of the receiving box 19, the operator can clamp the workpiece at different positions using multiple clamping structures, thereby stably fixing the workpiece to the upper surface of the receiving box 19, which helps to improve the stability of the second moving vehicle 8 during the movement of the irregularly shaped workpiece on the surface.
[0019] Furthermore, a second limiting block 5 is fixedly connected to the rear end of the top of the first docking rail 4, a third limiting block 10 is fixedly connected to the front end of the top of the second docking rail 9, and a first limiting block 2 is fixedly connected to both ends of the front and rear sides of the top of the first rail 1. The second limiting block 5, the third limiting block 10 and the first limiting block 2 facilitate the restriction of the movement distance between the first moving vehicle 6 and the second moving vehicle 8.
[0020] Furthermore, a second connecting seat 26 is fixedly connected to the front end of the second mobile vehicle 8, and a first connecting seat 7 is fixedly connected to the front side of the first mobile vehicle 6. The first connecting seat 7 and the second connecting seat 26 facilitate the movement of the first mobile vehicle 6 and the second mobile vehicle 8 by external traction equipment.
[0021] Second Embodiment Please refer to Figure 3-5 Based on the same concept as the first embodiment described above, the transmission mechanism includes a transmission rod 12, which is rotatably disposed between the connecting platform 11 and the first moving vehicle 6. The front end and the rear end of the surface of the transmission rod 12 are provided with connecting threads 13, and the threads of the two connecting threads 13 are opposite. The surface of the connecting threads 13 is threadedly connected to a first threaded sleeve 14, and crossbars 18 are rotatably disposed on both sides of the first threaded sleeve 14.
[0022] The four corners of the lower surface of the connecting platform 11 are rotatably connected to the second hinge 16, the four corners of the upper surface of the first moving vehicle 6 are rotatably connected to the first hinge 15, the second hinge 16 and the first hinge 15 are rotatably connected to each other through the corresponding ends of the crossbar 18 on the same side, and the front end of the transmission rod 12 is fixedly connected to the handle 17.
[0023] The clamping structure includes a vertical threaded rod 20 and two second threaded sleeves 21. The vertical threaded rod 20 is rotatably disposed in the inner cavity of the receiving box 19. The two second threaded sleeves 21 are respectively threaded to one end and the other end of the surface of the vertical threaded rod 20. A vertical block 22 is vertically fixedly connected to the top of the second threaded sleeve 21.
[0024] The top of the vertical block 22 extends movably to the outside of the receiving box 19 and is fixedly connected to the clamping seat 25. One end of the vertical threaded rod 20 extends to the outside of the receiving box 19 and is fixedly connected to the torsion handle 23.
[0025] The top of the container 19 has several horizontal openings 24 for the vertical block 22 to move, which are evenly arranged along its length on both sides.
[0026] In this embodiment, turning the handle 17 will drive the transmission rod 12 to rotate, and the connecting thread 13 will drive the two first threaded sleeves 14 to move closer or further apart, thereby changing the tilt angle between the second hinge 16 and the first hinge 15, and thus adjusting the height of the connecting platform 11. Turning the torsion handle 23 will drive the vertical threaded rod 20 to rotate, thereby driving the two second threaded sleeves 21 to move closer or further apart. By using the connection of the vertical block 22, the distance between the clamping seats 25 can be adjusted. After multiple clamping seats 25 make contact with the surface of the workpiece, workpieces of different specifications can be clamped and fixed.
[0027] The working principle and usage process of this utility model are as follows: After the utility model is installed, the irregularly shaped workpiece is placed on the top of the receiving box 19. After turning the handle 17, the transmission rod 12 can be rotated. Through the connecting thread 13, the two first threaded sleeves 14 can be moved closer or further apart, thereby changing the tilt angle between the second hinge 16 and the first hinge 15, and thus adjusting the height of the connecting platform 11. After turning the torsion handle 23, the vertical threaded rod 20 can be rotated, thereby moving the two second threaded sleeves 21 closer or further apart. By using the connection of the vertical block 22, the distance between the clamping seats 25 can be adjusted. After multiple clamping seats 25 contact the surface of the workpiece, workpieces of different specifications can be clamped and fixed, thereby improving the stability of the second moving carriage 8 in moving the irregularly shaped workpiece.
[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A docking and conveying structure for a heat treatment furnace with a double-column vertical carriage, comprising a second track (3) disposed at the bottom of the inner cavity of the heat treatment furnace and a first track (1) disposed laterally at the front side of the heat treatment furnace, characterized in that: A first moving vehicle (6) is provided on the top of the first track (1), a second moving vehicle (8) is provided on the top of the second track (3), and a connecting platform (11) is raised and lowered above the second moving vehicle (8) by a transmission mechanism. The upper surface of the connecting platform (11) is fixedly connected to a receiving box (19). The upper surface of the receiving box (19) is provided with several clamping structures. The multiple clamping structures are evenly distributed and arranged along the front end to the rear end of the receiving box (19). The top two sides of the second track (3) are fixedly connected to a first docking rail (4). The top two sides of the first moving vehicle (6) are fixedly connected to a second docking rail (9) that is adapted to the first docking rail (4).
2. The heat treatment furnace docking and conveying structure with double-column vertical carriage as described in claim 1, characterized in that: The rear end of the top of the first docking rail (4) is fixedly connected to a second limiting block (5), the front end of the top of the second docking rail (9) is fixedly connected to a third limiting block (10), and the front and rear ends of the top of the first rail (1) are both fixedly connected to a first limiting block (2).
3. The heat treatment furnace docking and conveying structure with double-column vertical carriage as described in claim 1, characterized in that: The front end of the second mobile vehicle (8) is fixedly connected to a second connecting seat (26), and the front side of the first mobile vehicle (6) is fixedly connected to a first connecting seat (7).
4. The heat treatment furnace docking and conveying structure with double-column vertical carriage as described in claim 1, characterized in that: The transmission mechanism includes a transmission rod (12), which is rotatably disposed between the connecting platform (11) and the first moving vehicle (6). The front end and the rear end of the surface of the transmission rod (12) are provided with connecting threads (13), and the threads of the two connecting threads (13) are opposite. The surface of the connecting thread (13) is threadedly connected to a first threaded sleeve (14). The two sides of the first threaded sleeve (14) are rotatably provided with crossbars (18). The four corners of the lower surface of the connecting platform (11) are rotatably connected to second hinges (16). The four corners of the upper surface of the first moving vehicle (6) are rotatably connected to first hinges (15). The second hinges (16) and the first hinges (15) are rotatably connected through the corresponding ends of the crossbars (18) on the same side. The front end of the transmission rod (12) is fixedly connected to a handle (17).
5. The heat treatment furnace docking and conveying structure with double-column vertical carriage as described in claim 1, characterized in that: The clamping structure includes a vertical threaded rod (20) and two second threaded sleeves (21). The vertical threaded rod (20) is rotatably disposed in the inner cavity of the receiving box (19). The two second threaded sleeves (21) are respectively threaded to one end and the other end of the surface of the vertical threaded rod (20). A vertical block (22) is vertically fixedly connected to the top of the second threaded sleeve (21). The top of the vertical block (22) extends movably to the outside of the receiving box (19) and is fixedly connected to a clamping seat (25). One end of the vertical threaded rod (20) extends to the outside of the receiving box (19) and is fixedly connected to a torsion handle (23).
6. The heat treatment furnace docking and conveying structure with double-column vertical carriage as described in claim 5, characterized in that: The top of the container (19) has several horizontal openings (24) evenly arranged along its length on both sides for the vertical block (22) to move.