Automobile plate spring hot punching induction heating equipment

By designing an automatic feeding mechanism, the problems of low efficiency and unstable precision caused by the reliance on manual operation in existing equipment have been solved, realizing efficient and stable heating of automotive leaf springs and meeting the needs of lightweight and high-performance automobile manufacturing.

CN224128470UActive Publication Date: 2026-04-17WUXI WEI NENG NC TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI WEI NENG NC TECH CO LTD
Filing Date
2024-12-31
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing automotive leaf spring hot stamping induction heating equipment relies on manual operation, resulting in low production efficiency and unstable material cutting accuracy, making it difficult to meet the needs of lightweight and high-performance automotive manufacturing.

Method used

An automated feeding mechanism was designed, comprising components such as a support base, a basic frame, a motor, bearings, a drive shaft, and a feeding chain, which enables automated conveying and heating of automotive leaf springs, eliminating the need for manual intervention.

Benefits of technology

It has achieved automated material feeding, improved production efficiency, reduced labor intensity, ensured product quality consistency, and met the needs of modern industrialized production.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of automobile part manufacturing, in particular to automobile plate spring hot punching induction heating equipment which comprises supporting bottom feet, a foundation frame is fixedly connected to the upper surfaces of the supporting bottom feet, and a self-feeding mechanism is arranged on the upper surface of the foundation frame. According to the automobile plate spring hot punching induction heating equipment, through the arrangement of the micro-clamping mechanism, when the equipment is used, multiple sets of automobile plate springs are stacked in the feeding barrel, then a feeding push rod and an L-shaped push plate are started, the automobile plate springs stably fall on the upper portions of the automobile plate springs, then a motor is started, the automobile plate springs enter an induction heating furnace through the arrangement of a bearing and a driving rotating shaft, and the automobile plate springs are heated; according to the device, automatic feeding is achieved through arrangement of all the mechanisms, manual piece-by-piece feeding is not needed in the whole process, manpower is greatly saved, the labor intensity is reduced, the production efficiency is improved, and the device is suitable for the modern large-scale industrial production rhythm.
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Description

Technical Field

[0001] This utility model relates to the field of automotive parts manufacturing technology, and in particular to an automotive leaf spring hot stamping induction heating device. Background Technology

[0002] In the automotive parts manufacturing industry, automotive leaf springs, as a key suspension component, play a crucial role in ensuring vehicle stability and safety. Traditional automotive leaf spring manufacturing processes rely heavily on flame heating in the hot processing stage. Although flame heating is low-cost, it suffers from poor temperature control precision, which can lead to uneven heating of different parts of the leaf spring, resulting in differences in structural properties. This makes it difficult for the finished leaf spring to meet high standards in terms of key properties such as elasticity and fatigue life. Therefore, there is a particular need for an automotive leaf spring hot stamping induction heating device.

[0003] However, existing automotive leaf spring hot stamping induction heating equipment, although using resistance furnace heating to a certain extent ensures the stability of the process, is limited by design and the feeding process mostly relies on manual operation. This not only reduces production efficiency, but also causes unstable feeding accuracy due to human factors, making it difficult to guarantee the consistency of product quality and failing to meet the trend of automotive manufacturing towards lightweight and high performance. Utility Model Content

[0004] The purpose of this utility model is to provide an induction heating device for hot stamping of automotive leaf springs, in order to solve the problems mentioned in the background art. Although the existing induction heating device for hot stamping of automotive leaf springs adopts the resistance furnace heating method to a certain extent to ensure the stability of the process, due to design limitations, the material feeding process mostly relies on manual operation. This not only reduces production efficiency, but also causes unstable material feeding accuracy due to human factors, making it difficult to ensure the consistency of product quality and failing to meet the trend of automotive manufacturing towards lightweight and high performance.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an induction heating device for hot stamping of automotive leaf springs, comprising a supporting base, a base frame fixedly connected to the upper surface of the supporting base, a motor fixedly connected to the upper surface of the base frame, a bearing fixedly connected to one side surface of the motor, a drive shaft fixedly connected to one side surface of the bearing, a feeding chain rotatably connected to one side surface of the drive shaft, a driven shaft rotatably connected to one side surface of the feeding chain, a support block rotatably connected to one side surface of the driven shaft, a connecting block fixedly connected to the upper surface of the supporting base, an induction heating furnace fixedly connected to the upper surface of the connecting block, and a self-feeding mechanism provided on the upper surface of the base frame;

[0006] The self-feeding mechanism includes a fixed block, a fixed triangle, a feeding cylinder, a feeding ramp, an adjusting strip, an adjusting push rod, an L-shaped push plate, a stacking plate, a feeding push rod, and a semi-circular push plate. A fixed block is fixedly connected to the upper surface of the supporting base. A fixed triangle is fixedly connected to the upper surface of the fixed block. A feeding cylinder is fixedly connected to one side surface of the fixed triangle. A feeding ramp is provided on the inner surface of the feeding cylinder. An adjusting strip is fixedly connected to the inner surface of the feeding cylinder. An adjusting push rod is fixedly connected to the inner surface of the feeding cylinder. An L-shaped push plate is fixedly connected to one side surface of the adjusting push rod. A stacking plate is fixedly connected to the inner surface of the feeding cylinder. A feeding push rod is fixedly connected to the inner surface of the feeding cylinder. A semi-circular push plate is fixedly connected to one side surface of the feeding push rod.

[0007] Preferably, one set of supporting feet is provided at each of the four corners of the base frame, and two sets of bearings are provided on the upper surface of the base frame and on one side of the motor.

[0008] Preferably, the feeding chain has four sets on one side surface of the driving shaft, and the radius of the bearing is smaller than the radius of the driven shaft.

[0009] Preferably, one set of support blocks is provided on the lower surface of each set of driven rotating shafts, and two sets of connecting blocks are symmetrically provided on the lower surface of the induction heating furnace, with two blocks in each set.

[0010] Preferably, two sets of fixing blocks and fixing triangles are fixedly connected to the left and right surfaces of the feeding cylinder, and the L-shaped push plate is slidably connected to the lower outlet of the feeding cylinder through the adjusting push rod.

[0011] Preferably, the stacking plate is fixedly connected to the feeding cylinder, and the size of one side of it matches that of an automotive leaf spring. The upper end of the semi-arc push plate is provided with a semi-arc-shaped notch.

[0012] Preferably, the upper end of the L-shaped pusher plate is provided with a semi-circular notch, and the size of the baffle at the lower end of the L-shaped pusher plate matches the size of the outlet of the feed cylinder.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This automotive leaf spring hot stamping induction heating equipment, through the setting of the micro-clamping mechanism, allows multiple sets of automotive leaf springs to be stacked in the feeding cylinder during use. Then, the feeding push rod is activated. The semi-arc push plate facilitates pushing the automotive leaf springs down to the position of the L-shaped push plate. The L-shaped push plate then activates, pushing the falling individual automotive leaf springs to squeeze the adjusting strip. If the automotive leaf spring is in a vertical state, it will tilt and become parallel due to the coordination of the L-shaped push plate and the adjusting strip. Then, the L-shaped push plate retracts inward, and the automotive leaf spring falls into the feeding chain. The motor starts, and through the setting of the bearing and the drive shaft, it enters the induction heating furnace for heating. Then, it enters the rear end of the induction heating furnace, is picked up by the stamping device, and enters the next stage. The setting of each mechanism of this device realizes automatic feeding. The whole process does not require manual feeding of each piece, which greatly saves manpower, reduces labor intensity, improves production efficiency, and adapts to the pace of modern large-scale industrial production. Attached Figure Description

[0014] Figure 1 This is a side view of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the feeding chain transportation structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the adjusting strip, adjusting push rod, and L-shaped push plate of this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the stacking plate and the feeding push rod of this utility model.

[0018] In the diagram: 1. Support foot; 2. Basic frame; 3. Motor; 4. Bearing; 5. Driven shaft; 6. Feeding chain; 7. Driven shaft; 8. Support block; 9. Connecting block; 10. Induction heating furnace; 11. Self-feeding mechanism; 1101. Fixing block; 1102. Fixing triangle; 1103. Feeding cylinder; 1104. Feeding ramp; 1105. Adjusting bar; 1106. Adjusting push rod; 1107. L-shaped push plate; 1108. Stacking plate; 1109. Feeding push rod; 1110. Semi-arc push plate. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-4This utility model provides a technical solution: an automotive leaf spring hot stamping induction heating device, including a supporting base 1, a base frame 2 fixedly connected to the upper surface of the supporting base 1, a motor 3 fixedly connected to the upper surface of the base frame 2, a bearing 4 fixedly connected to one side surface of the motor 3, a drive shaft 5 fixedly connected to one side surface of the bearing 4, a feeding chain 6 rotatably connected to one side surface of the drive shaft 5, a driven shaft 7 rotatably connected to one side surface of the feeding chain 6, a support block 8 rotatably connected to one side surface of the driven shaft 7, a connecting block 9 fixedly connected to the upper surface of the supporting base 1, an induction heating furnace 10 fixedly connected to the upper surface of the connecting block 9, and a self-feeding mechanism 11 provided on the upper surface of the base frame 2;

[0021] The self-feeding mechanism 11 includes a fixed block 1101, a fixed triangle 1102, a feeding cylinder 1103, a feeding ramp 1104, an adjusting strip 1105, an adjusting push rod 1106, an L-shaped push plate 1107, a stacking plate 1108, a feeding push rod 1109, and a semi-circular push plate 1110. A fixed block 1101 is fixedly connected to the upper surface of the supporting base 1. A fixed triangle 1102 is fixedly connected to the upper surface of the fixed block 1101. A feeding cylinder 1103 is fixedly connected to one side surface of the fixed triangle 1102. A feeding ramp 11 is provided on the inner surface of the feeding cylinder 1103. 04. An adjusting strip 1105 is fixedly connected to the inner surface of the feeding cylinder 1103. An adjusting push rod 1106 is fixedly connected to the inner surface of the feeding cylinder 1103. An L-shaped push plate 1107 is fixedly connected to one side surface of the adjusting push rod 1106. A stacking plate 1108 is fixedly connected to the inner surface of the feeding cylinder 1103. A feeding push rod 1109 is fixedly connected to the inner surface of the feeding cylinder 1103. A semi-circular push plate 1110 is fixedly connected to one side surface of the feeding push rod 1109. The feeding push rod 1109 is connected to one side surface of the semi-circular push plate 1110. The feeding cylinder 1103 and the feeding ramp 1105 are connected to the feeding cylinder 1103. 04. The arrangement of the adjusting bar 1105, adjusting push rod 1106, L-shaped push plate 1107, stacking plate 1108, loading push rod 1109, and semi-circular push plate 1110 is as follows: In use, multiple sets of automotive leaf springs are stacked in the loading cylinder 1103. Then, the loading push rod 1109 is activated. The semi-circular push plate 1110 facilitates pushing the automotive leaf springs down to the position of the L-shaped push plate 1107. Subsequently, the L-shaped push plate 1107 is activated, and the L-shaped push plate 1107 pushes the falling individual automotive leaf springs to compress the adjusting bar 1105. If the automotive leaf springs are in a vertical state, the L-shaped push plate will compress the adjusting bar 1105. The L-shaped push plate 1107 and the adjusting bar 1105 are designed and coordinated. After tilting, they become parallel. Then, the L-shaped push plate 1107 retracts inward, and the car leaf spring falls into the feeding chain 6. The motor 3 starts and enters the induction heating furnace 10 through the bearing 4 and the drive shaft 5 for heating. Then, it enters the rear end of the induction heating furnace 10 and is picked up by the stamping device to enter the next stage. The various mechanisms of this device realize automatic feeding. The whole process does not require manual feeding of each piece, which greatly saves manpower, reduces labor intensity, improves production efficiency, and adapts to the pace of modern large-scale industrial production. At the same time, the equipment has a supporting base 1 and a basic frame 2 to provide an overall support structure. The driven shaft 7, support block 8, and connecting block 9 ensure the connection and cooperation of related components. The fixed block 1101 and fixed triangle 1102 in the self-feeding mechanism 11 also play a corresponding stabilizing role. Components such as the feeding ramp 1104 and the adjusting push rod 1106 also play their respective functions in the entire feeding process.

[0022] Furthermore, a set of support feet 1 is installed at each of the four corners of the base frame 2, and two sets of bearings 4 are installed on the upper surface of the base frame 2 and on one side of the motor 3. Through the installation of the support feet 1, in use, with one set at each of the four corners of the base frame 2, this layout creates an extremely stable support structure for the entire automotive leaf spring hot stamping induction heating equipment. From a mechanical perspective, the support points at the four corners can evenly bear the overall weight of the equipment, allowing the gravity on the equipment to be evenly distributed. During equipment operation, whether it is the vibration generated by the motor 3 or the slight shaking that may be caused during the operation of the induction heating furnace 10, this four-corner support structure can effectively buffer and suppress these factors, minimizing the overall shaking amplitude of the equipment.

[0023] Furthermore, four sets of feeding chains 6 are arranged on one side surface of the drive shaft 5. The radius of the bearing 4 is smaller than that of the driven shaft 7. Through the arrangement of the feeding chains 6, the four sets of feeding chains 6 are evenly distributed on one side surface of the drive shaft 5 during use, so that the automotive leaf spring can receive more balanced support during the conveying process. When the leaf spring is placed on the feeding chains 6, the multiple sets of feeding chains 6 can support the leaf spring from different positions, preventing the leaf spring from tilting, swaying, or other unstable situations due to single-point force during the conveying process.

[0024] Furthermore, a set of support blocks 8 is provided on the lower surface of each group of driven shafts 7, and two sets of connecting blocks 9 are symmetrically arranged on the lower surface of the induction heating furnace 10, with two blocks in each set. The support blocks 8 and connecting blocks 9 provide stable support for the driven shafts 7 during use. The driven shafts 7 play a crucial role in the operation of the equipment; they are connected to the feeding chain 6 and are key components in the feeding process. Stable support ensures that the driven shafts 7 maintain good concentricity and perpendicularity during high-speed rotation, reducing vibration and offset. The two sets of connecting blocks 9 symmetrically arranged on the lower surface of the induction heating furnace 10 provide a stable mounting base for the furnace. The induction heating furnace 10 is one of the core components of the automotive leaf spring hot stamping induction heating equipment, and it needs to maintain a stable position during operation to ensure uniform heating of the automotive leaf springs.

[0025] Furthermore, two sets of fixing blocks 1101 and fixing triangles 1102 are fixedly connected to the left and right surfaces of the feeding cylinder 1103. The L-shaped push plate 1107 is slidably connected to the lower outlet of the feeding cylinder 1103 via the adjusting push rod 1106. Through the arrangement of fixing blocks 1101 and fixing triangles 1102, the feeding cylinder 1103 needs to withstand the weight of the automotive leaf spring and various forces generated during the pushing process. Fixing blocks 1101 and fixing triangles 1102 can effectively resist these forces, keeping the feeding cylinder 1103 in a stable position.

[0026] Furthermore, the stacking plate 1108 is fixedly connected to the feeding cylinder 1103, and the size of one side of it matches the automotive leaf spring. The upper end of the semi-circular push plate 1110 has a semi-circular notch. Through the setting of the stacking plate 1108, during use, the stacking plate 1108 is fixedly connected to the feeding cylinder 1103. Since the size of one side of it matches the automotive leaf spring, it plays a good role in limiting and regulating when the automotive leaf springs are stacked in the feeding cylinder 1103. It can ensure that the automotive leaf springs maintain a neat arrangement during the stacking process and avoid the leaf springs from crossing or tilting.

[0027] Furthermore, the upper end of the L-shaped push plate 1107 has a semi-circular notch, and the size of the baffle at the lower end of the L-shaped push plate 1107 matches the outlet size of the feed cylinder 1103. Through the design of the L-shaped push plate 1107, the semi-circular notch at the upper end is specifically designed for the shape of automotive leaf springs. Automotive leaf springs typically have a certain curvature, and the semi-circular notch can fit well with the edge or end of the leaf spring. When adjusting the leaf spring position, this notch can act like a custom-made clamp, accurately holding the leaf spring in place, allowing it to maintain a stable posture when subjected to thrust or other forces.

[0028] Working principle: In use, multiple sets of automotive leaf springs are stacked in the loading cylinder 1103. Then, the loading push rod 1109 is activated. The semi-circular push plate 1110 helps to push the automotive leaf springs down to the position of the L-shaped push plate 1107. The L-shaped push plate 1107 is then activated, pushing the falling individual automotive leaf springs to compress the adjusting strip 1105. If the automotive leaf springs are in a vertical state, they will tilt and become flat due to the coordination of the L-shaped push plate 1107 and the adjusting strip 1105. In the forward state, the L-shaped push plate 1107 retracts inward, and the automotive leaf spring falls into the feeding chain 6. The motor 3 starts, and the spring enters the induction heating furnace 10 through the bearing 4 and the drive shaft 5 for heating. Then, it enters the rear end of the induction heating furnace 10, is picked up by the stamping device, and enters the next stage. The various mechanisms of this device enable automatic feeding, eliminating the need for manual feeding of each piece, greatly saving manpower, reducing labor intensity, improving production efficiency, and adapting to the pace of modern large-scale industrial production. At the same time, the equipment has a supporting base 1 and a basic frame 2 to provide an overall support structure. The driven shaft 7, support block 8, and connecting block 9 ensure the connection and cooperation of related components. The fixed block 1101 and fixed triangle 1102 in the self-feeding mechanism 11 also play a corresponding stabilizing role. Components such as the feeding ramp 1104 and the adjusting push rod 1106 also play their respective functions in the entire feeding process.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hot-chamber induction heating apparatus for heating a leaf spring of an automobile, comprising a support base (1), characterized in that: A base frame (2) is fixedly connected to the upper surface of the support foot (1), a motor (3) is fixedly connected to the upper surface of the base frame (2), a bearing (4) is fixedly connected to one side surface of the motor (3), an active rotating shaft (5) is fixedly connected to one side surface of the bearing (4), a feeding chain (6) is rotatably connected to one side surface of the active rotating shaft (5), a driven rotating shaft (7) is rotatably connected to one side surface of the feeding chain (6), a support block (8) is rotatably connected to one side surface of the driven rotating shaft (7), a connecting block (9) is fixedly connected to the upper surface of the support foot (1), an induction heating furnace (10) is fixedly connected to the upper surface of the connecting block (9), and a self-feeding mechanism (11) is provided on the upper surface of the base frame (2). The self-feeding mechanism (11) includes a fixed block (1101), a fixed triangle (1102), a feeding cylinder (1103), a feeding ramp (1104), an adjusting strip (1105), an adjusting push rod (1106), an L-shaped push plate (1107), a stacking plate (1108), a feeding push rod (1109), and a semi-circular push plate (1110). The fixed block (1101) is fixedly connected to the upper surface of the supporting base (1). The fixed triangle (1102) is fixedly connected to the upper surface of the fixed block (1101). The feeding cylinder (1103) is fixedly connected to one side surface of the fixed triangle (1102). The inner surface of (1103) is provided with a feeding ramp (1104), the inner surface of the feeding cylinder (1103) is fixedly connected with an adjusting strip (1105), the inner surface of the feeding cylinder (1103) is fixedly connected with an adjusting push rod (1106), one side surface of the adjusting push rod (1106) is fixedly connected with an L-shaped push plate (1107), the inner surface of the feeding cylinder (1103) is fixedly connected with a stacking plate (1108), the inner surface of the feeding cylinder (1103) is fixedly connected with a feeding push rod (1109), and one side surface of the feeding push rod (1109) is fixedly connected with a semi-arc push plate (1110).

2. The apparatus for heating a leaf spring of a vehicle according to claim 1, wherein: The supporting feet (1) are provided at each of the four corners of the base frame (2), the bearings (4) are on the upper surface of the base frame (2), and two sets are provided on one side of the motor (3).

3. The apparatus for heating a leaf spring of a vehicle according to claim 1, wherein: The feeding chain (6) has four sets of bearings on one side surface of the driving shaft (5), and the radius of the bearing (4) is smaller than that of the driven shaft (7).

4. The apparatus for heating a leaf spring of a vehicle according to claim 1, wherein: The support block (8) is provided in one set on the lower surface of each set of driven rotating shafts (7), and the connecting block (9) is provided in two sets symmetrically on the lower surface of the induction heating furnace (10), with two blocks in each set.

5. The apparatus for heating a leaf spring of a vehicle according to claim 1, wherein: The fixed block (1101) and the fixed triangle (1102) are fixedly connected in two sets on the left and right sides of the feed cylinder (1103). The L-shaped push plate (1107) is slidably connected to the lower outlet of the feed cylinder (1103) through the adjusting push rod (1106).

6. The apparatus for heating a leaf spring of a vehicle according to claim 1, wherein: The stacking plate (1108) is fixedly connected to the loading cylinder (1103), and the size of one side of it matches that of an automotive leaf spring. The upper end of the semi-arc push plate (1110) is provided with a semi-arc-shaped notch.

7. The apparatus according to claim 1, wherein: The upper end of the L-shaped push plate (1107) is provided with a semi-circular notch, and the size of the baffle at the lower end of the L-shaped push plate (1107) matches the size of the outlet of the feed cylinder (1103).