A heating rotary device for heat treatment of automobile torsion bars
By using a shaping heating device and a torsion bar contour heating head, combined with a telescopic cylinder and a rotating bearing structure, the problem of uneven heating in torsion bar heat treatment is solved, achieving precise heating and shaping, and improving product quality and clamping accuracy.
Patent Information
- Application Number
- CN202520946634.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-14
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-05-14
AI Technical Summary
Uneven heating in traditional torsion bar heat treatment processes leads to poor surface quality and deformation that does not meet standards, affecting performance and lifespan.
By employing a shaping heating device and a torsion bar contour heating head, combined with a telescopic cylinder and a rotating bearing structure, the torsion bar can be precisely heated and shaped, ensuring uniform pressure distribution and avoiding uneven local stress.
This improved the processing consistency and reliability of torsion bars, reduced material waste, enhanced clamping accuracy and testing precision, and ensured product quality.
Smart Images

Figure CN224678090U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive suspension torsion bar technology, and in particular to a heating and rotating device for heat treatment of automotive torsion bars. Background Technology
[0002] In the modern automotive industry, torsion bars are crucial automotive components whose performance directly impacts the overall performance of a vehicle, particularly in the suspension and drive systems. During manufacturing, torsion bars typically require heat treatment and shaping to ensure they achieve the necessary mechanical properties and shape accuracy. Traditional torsion bar heat treatment processes often involve simple heating and cooling, but uneven heating and difficulty in guaranteeing forming precision can easily lead to poor surface quality or non-standard deformation, thus affecting their subsequent performance and lifespan. Utility Model Content
[0003] The purpose of this invention is to solve the problem that traditional torsion bar heat treatment processes usually involve simple heating and cooling, but uneven heating and difficulty in ensuring forming accuracy can easily lead to poor surface quality or deformation that does not meet standards, thus affecting the subsequent use and lifespan of the torsion bar.
[0004] This utility model achieves the above objectives through the following technical solutions: A heating and rotating device for heat treatment of automotive torsion bars includes a base plate. Two first rotating bearings are disposed on one upper side of the base plate, each bearing being connected to a lead screw. A movable clamping seat is disposed on one side of each lead screw. A torsion bar gear clamping disc is disposed on the opposite end of the movable clamping seat. A rotating motor is disposed on one side of the torsion bar gear clamping disc. A shaping heating device is disposed between the torsion bar gear clamping disc and the movable clamping seat. The shaping heating device includes a base, with a torsion bar conforming heating head disposed on the upper end of the base. A fixed support frame is fixedly connected to the upper end of the base. Telescopic cylinders are provided on both sides of the upper end, and a pressing head is provided at the output end of the telescopic cylinder. Guide columns are provided around the pressing head. A torsion bar is provided between the torsion bar shaping heating head and the pressing head. By setting up a shaping heating device and a torsion bar shaping heating head, the torsion bar can be precisely heated and shaped, thereby ensuring that the torsion bar reaches the required deformation standard during processing. The telescopic cylinders control the movement of the pressing head, so that the pressing head can apply pressure evenly, thereby ensuring the uniform distribution of pressure during the heating and forming process of the torsion bar, avoiding product damage or test errors caused by uneven local stress.
[0005] Furthermore, the movable clamping seat includes a fixed plate, with lead screw shafts at both ends of the bottom of the fixed plate, and a second rotary bearing at the upper end of the fixed plate. A torsion bar fixing head is fixedly connected to the second rotary bearing. The rotary bearing allows the fixed plate to rotate and adjust its position more flexibly, ensuring that the torsion bar fixing head can accurately clamp the torsion bar without loosening or shifting during the test, thus improving clamping accuracy. The movable clamping seat adopts a composite transmission structure of lead screw shaft and rotary bearing, combined with the universal adjustment capability of the torsion bar fixing head, which can more effectively clamp the torsion bar.
[0006] Furthermore, both the pressing head and the torsion bar contour heating head are provided with contour grooves for clamping the torsion bar.
[0007] Furthermore, both the torsion bar contour heating head and the pressing head are equipped with temperature sensors to monitor temperature changes in real time during the heating process.
[0008] Furthermore, the torsion bar contour heating head is equipped with a pressure sensor to detect the pressure applied to the torsion bar by the lower pressure head, so as to ensure uniform pressure application and avoid damage to the torsion bar.
[0009] Compared with the prior art, the beneficial effects of this utility model are: 1. By setting up a shaping heating device and a torsion bar contour heating head, the torsion bar can be precisely heated and shaped, ensuring that the torsion bar reaches the required deformation standard during processing. This design effectively guarantees the consistency and reliability of the torsion bar under different processing conditions and improves product quality.
[0010] 2. The telescopic cylinder controls the movement of the lower pressure head, enabling it to apply pressure evenly. This ensures uniform pressure distribution during torsion bar heating and forming, avoiding product damage or testing errors caused by uneven local stress. This design improves testing accuracy and reduces material waste.
[0011] 3. The movable clamping seat adopts a composite transmission structure of lead screw shaft and rotary bearing. Combined with the adjustment capability of torsion bar fixing head, it can clamp the torsion bar more effectively. The rotary bearing setting allows the fixing plate to rotate and adjust its position more flexibly, ensuring that the torsion bar fixing head can accurately clamp the torsion bar, avoiding loosening or displacement during the test, and significantly improving the clamping accuracy. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the present invention; Figure 2 This is a schematic diagram of the shaping and heating device of this utility model; Figure 3 This is a schematic diagram of the movable clamping base of this utility model; In the figure, 1-base plate, 2-first rotating bearing, 3-lead screw, 4-moving clamping seat, 5-torsion bar gear clamping plate, 6-rotating motor, 7-shaping heating device, 71-base, 72-torsion bar contour heating head, 73-fixed support frame, 74-telescopic cylinder, 75-downward pressing head, 76-guide column, 77-torsion bar, 41-fixed plate, 42-lead screw shaft, 43-second rotating bearing, 44-torsion bar fixing head. Detailed Implementation
[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0014] Combination Figure 1-3 As shown, a heating and rotating device for heat treatment of automotive torsion bars includes a base plate 1. Two first rotating bearings 2 are disposed on one side of the upper end of the base plate 1. Each first rotating bearing 2 is connected to a lead screw 3. A movable clamping seat 4 is disposed on one side of the lead screw 3. A torsion bar gear clamping disc 5 is disposed on the opposite end of the movable clamping seat 4. A rotating motor 6 is disposed on one side of the torsion bar gear clamping disc 5. A shaping heating device 7 is disposed between the torsion bar gear clamping disc 5 and the movable clamping seat 4. The shaping heating device 7 includes a base 71. A torsion bar contouring heating head 72 is disposed on the upper end of the base 71. A fixed support frame 73 is fixedly connected to the upper end of the base 71. Telescopic cylinders 74 are provided on both sides of the upper end. A pressing head 75 is provided at the output end of the telescopic cylinder 74. Guide posts 76 are provided around the pressing head 75. A torsion bar 77 is provided between the torsion bar shaping heating head 72 and the pressing head 75. By setting up the shaping heating device and the torsion bar shaping heating head, the torsion bar can be accurately heated and shaped, thereby ensuring that the torsion bar reaches the required deformation standard during processing. The telescopic cylinder controls the movement of the pressing head, so that the pressing head can apply pressure evenly, thereby ensuring the uniform distribution of pressure during the heating and forming process of the torsion bar, avoiding product damage or test errors caused by uneven local force.
[0015] The movable clamping seat 4 includes a fixed plate 41, with lead screw shafts 42 at both ends of the bottom of the fixed plate 41. A second rotary bearing 43 is provided at the upper end of the fixed plate 41, and a torsion bar fixing head 44 is fixedly connected to the second rotary bearing 43. The rotary bearing allows the fixed plate to rotate and adjust its position more flexibly, ensuring that the torsion bar fixing head can accurately clamp the torsion bar without loosening or shifting during the test, thus improving clamping accuracy. The movable clamping seat adopts a composite transmission structure of lead screw shaft and rotary bearing, combined with the universal adjustment capability of the torsion bar fixing head, which can more effectively clamp the torsion bar. The lower pressure head 75 and the torsion bar contour heating head 72 are both provided with contour grooves for clamping the torsion bar. Both the torsion bar contour heating head 72 and the lower pressure head 75 are equipped with temperature sensors to monitor temperature changes in real time during the heating process. The torsion bar contour heating head 72 is equipped with a pressure sensor to detect the pressure applied to the torsion bar by the lower pressure head 75, ensuring uniform pressure and avoiding damage to the torsion bar. Working principle: The movable clamping seat 4 is driven to move laterally along the base plate by the lead screws 3 on both sides, adjusting the distance between the two clamping ends to accommodate torsion bars 77 of different lengths, and is manually locked and fixed. The precision transmission of the lead screw shaft ensures the clamping centering. The torsion bar fixing head 44 of the movable clamping seat 4 achieves multi-degree-of-freedom adjustment through the second rotating bearing 43. With the rotation clamping of the torsion bar gear clamping disk 5, the torsion bar is accurately positioned in three-dimensional space, avoiding deviation or loosening during the test. The torsion bar contour heating head 72 has a built-in electric heating element, and its contour groove is completely in contact with the surface of the torsion bar to achieve uniform radiant heating. The telescopic cylinder 74 drives the pressing head 75 to press down vertically along the guide post 76. The contour groove contacts the heated torsion bar and applies pressure to shape the bent torsion bar. After the shaping is completed, the torsion bar gear clamping disk 5 is rotated and adjusted to change the angle for pressing and shaping.
[0016] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0017] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A heat treatment heating rotary device for automotive torsion bars, comprising a base plate (1), characterized in that: The bottom plate (1) is provided with two first rotating bearings (2) on one side of the upper end, and a screw rod (3) is connected to each of the first rotating bearings (2), a moving clamping seat (4) is arranged on one side of the screw rod (3), a torsion bar gear clamping disc (5) is arranged at the opposite end of the moving clamping seat (4), a rotating motor (6) is arranged on one side of the torsion bar gear clamping disc (5), and a shaping heating device (7) is arranged between the torsion bar gear clamping disc (5) and the moving clamping seat (4), the shaping heating device (7) comprises a base (71), a torsion bar profiling heating head (72) is arranged at the upper end of the base (71), a fixed support frame (73) is fixedly connected to the upper end of the base (71), an extension cylinder (74) is arranged at each of the two sides of the upper end of the fixed support frame (73), a pressing head (75) is arranged at the output end of the extension cylinder (74), a guide column (76) is arranged around the pressing head (75), and a torsion bar (77) is arranged between the torsion bar profiling heating head (72) and the pressing head (75).
2. The heat treatment heating rotary device for a torsion bar of an automobile according to claim 1, characterized in that: The moving clamping seat (4) comprises a fixed plate (41), screw rod shafts (42) are arranged at the two ends of the bottom of the fixed plate (41), a second rotating bearing (43) is arranged at the upper end of the fixed plate (41), and a torsion bar fixing head (44) is fixedly connected to the second rotating bearing (43).
3. The heat treatment heating rotary device for a torsion bar of an automobile according to claim 2, characterized in that: The pressing head (75) and the torsion bar profiling heating head (72) are both provided with profiling grooves for clamping the torsion bar.
4. The heat treatment heating rotary device for a torsion bar of an automobile according to claim 3, characterized in that: The torsion bar profiling heating head (72) and the pressing head (75) are both provided with temperature sensors for real-time monitoring of temperature changes during the heating process.
5. The heat treatment heating rotary device for a torsion bar of an automobile according to claim 4, characterized in that: The torsion bar profiling heating head (72) is provided with a pressure sensor for detecting the pressure applied by the pressing head (75) on the torsion bar, so as to ensure uniform pressure and avoid damaging the torsion bar.