A forming device for processing automobile plate spring

Abstract

The application discloses a forming device for automobile plate spring machining, and relates to the technical field of quenching machining, which comprises a base, a quenching pool, a lower tooth holder, an upper tooth holder and a liquid immersion assembly. Two rows of adjusting rods positioned by pre-adjusting assemblies are arranged on the lower tooth holder and the upper tooth holder, and clamping assemblies are arranged on the bottom of the adjusting rods. The key lies in that an arc adjusting mechanism is arranged, a plurality of eccentric wheels with incremental initial phase angles are arranged on an adjusting main shaft, and the adjusting main shaft is synchronously rotated through a single driving source, so that all the adjusting rods are displaced, and the forming arc formed by the upper and lower clamping assemblies is synchronously and continuously changed. The application further comprises the liquid immersion assembly, which is used for directly immersing the press-formed plate spring into the quenching pool. The device solves the problems of complicated die changing, low type adjusting efficiency and poor precision in the prior art, realizes efficient and accurate flexible adjustment of the plate spring arc, and completes the integrated and continuous production of forming and quenching.

Description

Technical Field

[0001] This invention relates to the field of quenching processing technology, and in particular to a forming device for processing automotive leaf springs. Background Technology

[0002] Automotive leaf springs are key elastic components in vehicle suspension systems. Their function is to withstand and buffer the impacts and vibrations transmitted from the wheels, while also transmitting forces and torques in all directions. This directly affects the vehicle's load-bearing capacity, ride comfort, and handling stability. To obtain good mechanical properties, leaf springs are usually manufactured using a thermoforming process: first, the steel plate is heated to the austenitizing temperature to give it good plasticity; then, it is bent in a forming device to form the required arched curvature; after forming, it is quickly immersed in a quenching medium under pressure for quenching; and through rapid cooling, the material acquires a martensitic structure, thereby achieving the required strength and toughness.

[0003] In actual production, different vehicle models, loads, and working conditions have diverse requirements for the stiffness, arc height, and shape of leaf springs. Therefore, the pressing arc of the leaf spring needs to be adjusted according to the specific product. Currently, common leaf spring forming devices mainly include two types: one is to use a fixed-shape integral mold for pressing. This type of device has a simple structure and good rigidity, but one mold can only correspond to one fixed arc. When changing products, the mold must be changed, resulting in a long production preparation cycle, high mold storage and management costs, and difficulty in adapting to the flexible production needs of multiple varieties and small batches; the other is to use a rake tooth forming machine, which simulates the target arc through multiple independently adjustable forming teeth. Although it theoretically has a certain arc adjustment capability, in the actual adjustment process, it is necessary to adjust the lifting position of each tooth one by one. The operation is cumbersome and time-consuming, and it is difficult to ensure the synchronicity of the adjustment of each tooth and the continuity of the arc curve. The adjustment efficiency is low and the consistency is poor, and it is highly dependent on the experience of the operator. Summary of the Invention

[0004] One objective of this invention is to provide a forming device for processing automotive leaf springs. This invention achieves efficient adjustment of the leaf spring curvature and continuous automated production of the forming and quenching process by using a modular curvature forming mechanism that can be pre-adjusted and synchronously adjusted, in conjunction with an integrated pressure holding and quenching system.

[0005] A forming apparatus for processing automotive leaf springs according to an embodiment of the present invention includes a base, a quenching pool disposed on the base, and a lower gear seat disposed directly above the quenching pool. An upper gear seat is longitudinally slidably mounted on the lower gear seat. Two rows of adjusting rods are vertically disposed on both the lower gear seat and the upper gear seat. The apparatus also includes:

[0006] Multiple pre-adjustment components for mounting the adjusting rods are provided. The bottom of the lower toothed seat and the upper toothed seat are provided with two rows of longitudinal sliding grooves. The adjusting rods are positioned at any position in the sliding grooves by the pre-adjustment components so that the ends of the multiple adjusting rods form an arc.

[0007] Multiple clamping assemblies installed at the bottom of the adjusting rod clamp the spring sheet in an arc shape;

[0008] The arc adjustment mechanism is installed at the bottom of the lower gear seat and on the upper gear seat. The arc adjustment mechanism is used to synchronously adjust the longitudinal position of each adjustment rod and the lifting amount of each adjustment rod is different, so as to achieve the purpose of adjusting the overall arc.

[0009] An immersion assembly installed between the base and the upper gear seat is used to immerse the pressed reed into a quenching bath.

[0010] Preferably, a forming hydraulic cylinder for driving the upper tooth seat to rise and fall is fixedly installed on the lower tooth seat, and a placement seat and a pressure block are fixedly installed on the bottom of the lower tooth seat and the bottom of the upper tooth seat, respectively. The mating surfaces of the placement seat and the pressure block are horizontal and are provided with strip-shaped pressure grooves.

[0011] Preferably, the pre-adjustment assembly includes a rod sleeve, a T-shaped slide rail, and a positioning bolt. The adjusting rod is movably inserted into the rod sleeve. Multiple pairs of T-shaped slide rails are provided and are respectively installed on both sides of the longitudinal slide groove. The rod sleeve slides between two adjacent T-shaped slide rails. The positioning bolt passes through the longitudinal slide groove and is threadedly connected to the rod sleeve.

[0012] Preferably, a ball bearing head is fixedly installed on the top of the adjusting rod, a spacer is fixedly fitted on the adjusting rod, and a spring is fixedly installed between the top of the rod sleeve and the spacer.

[0013] Preferably, the clamping assembly includes a lower clamping rod and an upper clamping rod, which are respectively fixed to adjusting rods on the lower gear seat and the upper gear seat.

[0014] Preferably, the arc adjustment mechanism includes a transmission component and two radially arranged adjustment components. Each adjustment component includes an adjustment main shaft. Two sealing boxes are fixedly installed on both the lower and upper gear seats. The adjustment main shaft is rotatably installed inside the sealing box. Multiple eccentric wheels are installed on the adjustment main shaft corresponding to the position of the adjustment rod. The multiple eccentric wheels are installed with equal incremental deflection angles from the inside to the outside.

[0015] Preferably, the transmission assembly includes a bevel gear pair for driving two adjusting main shafts, the input shaft of the bevel gear pair is connected to a reduction gear pair, and the input shaft of the reduction gear pair is connected to a worm gear drive.

[0016] Preferably, a plurality of dial indicators are fixedly installed on the top of the sealing box, and the detection part of the dial indicator contacts the top of the eccentric wheel.

[0017] Preferably, the immersion assembly includes a first connecting seat and a second connecting seat, the first connecting seat and the second connecting seat are respectively fixedly installed on the base and the lower tooth seat, a large arm is movably hinged between the first connecting seat and the second connecting seat, a first hydraulic cylinder for driving the large arm to rotate around the hinge point is also installed between the large arm and the first connecting seat, and a second hydraulic cylinder for rotating the second connecting seat around the hinge point is also installed between the large arm and the second connecting seat.

[0018] The beneficial effects of this invention are:

[0019] This invention achieves rapid, precise, and flexible adjustment of the leaf spring's curvature. A pre-adjustment component allows for rapid setting of the basic curvature profile. Combined with the eccentric wheel group with phase difference distribution in the curvature adjustment mechanism, only a single input shaft, such as a worm gear, is needed to synchronously and continuously fine-tune the height of all forming tooth adjustment rods. This coarse-adjustment plus fine-adjustment mode completely changes the cumbersome process of manual adjustment of each tooth in traditional rake tooth machines, significantly improving adjustment efficiency and accuracy. It can flexibly adapt to the production needs of multiple varieties and small batches, while also ensuring the consistency of the forming curvature height and the smoothness of the curve. The lifting and lowering movements of all adjustment rods originate from the rotation of the same adjustment main shaft, ensuring strict synchronization of displacement at each point. The eccentric wheels distribute phase according to a specific function, causing the displacement of the adjustment rods to change continuously according to a preset function, thereby forming a smooth and accurate preset curvature curve. This effectively avoids the problem of inconsistent curvature caused by asynchronous adjustment at each point, improving the forming quality of the leaf spring. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a schematic diagram of the overall structure of a forming device for processing automotive leaf springs proposed in this invention.

[0022] Figure 2 This is a schematic diagram of the lower gear seat in a forming device for processing automotive leaf springs proposed in this invention;

[0023] Figure 3 This is a schematic diagram of the upper gear seat in a forming device for processing automotive leaf springs proposed in this invention;

[0024] Figure 4 This is a schematic diagram of the installation of the adjusting rod and the pre-adjustment component in a forming device for processing automotive leaf springs according to the present invention;

[0025] Figure 5 This is a schematic diagram of the arc adjustment mechanism in a forming device for processing automotive leaf springs proposed in this invention. Figure 1 ;

[0026] Figure 6 This is a schematic diagram of the arc adjustment mechanism in a forming device for processing automotive leaf springs proposed in this invention. Figure 2 ;

[0027] Figure 7 This is a schematic diagram illustrating the principle of adjusting the pressing arc of the leaf spring by rotating the eccentric wheel in a forming device for processing automotive leaf springs according to the present invention.

[0028] Figure 8 This is a schematic diagram illustrating the principle of pressing leaf springs of different curvatures in a forming device for processing automotive leaf springs proposed in this invention.

[0029] Figure 9 This is a schematic diagram of the liquid immersion component in a molding apparatus for processing automotive leaf springs proposed in this invention.

[0030] In the diagram: 1. Base; 101. Quenching pool;

[0031] 2. Lower gear seat; 201. Forming hydraulic cylinder; 202. Placement seat;

[0032] 3. Upper gear seat; 301. Pressure block;

[0033] 4. Adjusting rod; 401. Ball bearing head; 402. Spacer plate;

[0034] 5. Pre-adjustment assembly; 501. Rod sleeve; 502. T-shaped slide rail; 503. Positioning bolt; 504. Spring; 505. Limiting ring;

[0035] 6. Clamping assembly; 601. Lower clamping rod; 602. Upper clamping rod;

[0036] 7. Sealed box; 701. Dial indicator;

[0037] 8. Curvature adjustment mechanism; 801. Adjustment spindle; 802. Eccentric wheel;

[0038] 9. Immersion assembly; 901. First connecting seat; 902. Main arm; 903. Second connecting seat. Detailed Implementation

[0039] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0040] refer to Figures 1-9This invention discloses a forming apparatus for processing automotive leaf springs, including a base 1, as shown in the reference. Figure 1 The base 1 is provided with a quenching pool 101, and also includes a lower gear seat 2 located directly above the quenching pool 101. An upper gear seat 3 is longitudinally slidably mounted on the lower gear seat 2. (Refer to...) Figure 2 and Figure 3 A forming hydraulic cylinder 201 for driving the upper gear seat 3 to rise and fall is fixedly installed on the lower gear seat 2. A placement seat 202 and a pressure block 301 are fixedly installed on the bottom of the lower gear seat 2 and the bottom of the upper gear seat 3, respectively. The mating surfaces of the placement seat 202 and the pressure block 301 are horizontal and have strip-shaped pressure grooves. The leaf spring blank heated to the austenitizing temperature is placed on the strip-shaped pressure groove of the placement seat 202. The forming hydraulic cylinder 201 drives the upper gear seat 3 and its pressure block 301 to move downward, cooperating with the placement seat 202 of the lower gear seat 2. First, vertical pressure is applied to the middle of the reed blank for pre-pressing and positioning. Two rows of adjusting rods 4 are vertically arranged on both the lower gear seat 2 and the upper gear seat 3. Multiple pre-adjustment components 5 for mounting the adjusting rods 4 are also included. Two rows of longitudinal sliding grooves are opened on the bottom of the lower gear seat 2 and the upper gear seat 3. The adjusting rods 4 are positioned at any position in the sliding grooves using the pre-adjustment components 5, so that the ends of the multiple adjusting rods 4 form an arc. Multiple clamping components 6 installed at the bottom of the adjusting rods 4 clamp the reed to form an arc shape. These components are installed on the bottom of the lower gear seat 2 and the upper gear seat 3. The arc adjustment mechanism 8 is used to synchronously adjust the longitudinal position of each adjusting rod 4, and the lifting amount of each adjusting rod 4 is different, so as to adjust the overall arc. The immersion assembly 9 installed between the base 1 and the upper gear seat 3 is used to immerse the pressed spring sheet into the quenching pool 101. The operator first uses the pre-adjustment assembly 5 to preliminarily position each adjusting rod 4 on the longitudinal slide groove to form a basic arc profile. The heated leaf spring blank is placed on the placement seat 202 of the lower gear seat 2 to start the forming process. Hydraulic cylinder 201 drives upper gear seat 3 to move downward. After pressure block 301 completes end pre-pressing, clamping components 6 at the bottom of the upper and lower rows of adjusting rods 4 contact and clamp the leaf spring from below and above, respectively. As upper gear seat 3 continues to move downward, the upper and lower adjusting rods 4 bend the leaf spring synchronously under the drive of clamping components 6, so that it precisely fits the preset arc contour, completing hot pressing. Immersion component 9 is activated to immerse the formed but still high-temperature and pressure-maintaining leaf spring into quenching pool 101 for quenching, realizing continuous operation of forming and quenching.

[0041] refer to Figure 4The pre-adjustment component 5 includes a sleeve 501, a T-shaped slide rail 502, and a positioning bolt 503. The adjusting rod 4 is movably inserted into the sleeve 501. Multiple pairs of T-shaped slide rails 502 are provided and installed on both sides of the longitudinal slide groove. The sleeve 501 slides and rotates between two adjacent T-shaped slide rails 502. The positioning bolt 503 passes through the longitudinal slide groove and is threadedly connected to the sleeve 501. The sleeve 501 is inserted between a pair of T-shaped slide rails 502 through the flanges on both sides, so that the sleeve 501 can slide freely along the longitudinal slide groove. When it is necessary to set the basic curvature, the operator slides all the sleeves 501 to the corresponding preset position according to the curvature curve data, and then tightens the positioning bolt 503 to fix it, thereby firmly locking the sleeve 501 in that position of the slide groove. Each adjusting rod 4 is installed in an independent sleeve 501. By pre-adjusting the position of all the sleeves 501, the bottom ends of all the adjusting rods 4 can form a continuous spatial curve that conforms to the target curvature.

[0042] A ball head 401 is fixedly installed on the top of the adjusting rod 4. A spacer 402 is fixedly fitted on the adjusting rod 4. A spring 504 is fixedly installed between the top of the rod sleeve 501 and the spacer 402. A limit ring 505 is fixedly installed on the inner wall of the rod sleeve 501. The function of the limit ring 505 is to prevent the spring 504 from being over-compressed. This structure provides elastic support for the adjusting rod 4. The preload of the spring 504 acts on the adjusting rod 4 through the spacer 402, so that the clamping assembly 6 at its bottom has an upward initial contact force to resist the eccentric wheel in the arc adjustment mechanism 8. When the eccentric wheel 802 of the arc adjustment mechanism 8 acts on the ball head 401, it can overcome the spring force and accurately press down the adjusting rod 4. The ball head 401 converts the sliding friction of the eccentric wheel 802 into rolling friction, reducing wear and adjustment resistance. The limit ring 505 is used to prevent the adjusting rod 4 from being pushed up excessively in non-working or abnormal conditions, which would cause the spring 504 to be crushed and fail.

[0043] The clamping assembly 6 includes a lower clamping rod 601 and an upper clamping rod 602. The lower clamping rod 601 and the upper clamping rod 602 are respectively fixed to the adjusting rods 4 on the lower gear seat 2 and the upper gear seat 3. The lower clamping rod 601 and the upper clamping rod 602 are forming parts that directly contact the high-temperature leaf spring. They are respectively fixed to the bottom of the corresponding upper and lower adjusting rods 4. During the pressing process, as the upper gear seat 3 moves downward, the upper clamping rod 602 and the lower clamping rod 601 clamp the leaf spring in pairs. With the fine adjustment of the position of their respective adjusting rods 4, a bending torque is applied to the leaf spring, so that it gradually fits the arc-shaped mold surface formed by the endpoints of all the adjusting rods 4, thereby achieving precise forming.

[0044] refer to Figure 5 and Figure 6The arc adjustment mechanism 8 includes a transmission assembly and two radially arranged adjustment assemblies. Each adjustment assembly includes an adjustment spindle 801. Two sealing boxes 7 are fixedly installed on both the lower gear seat 2 and the upper gear seat 3. The adjustment spindle 801 is rotatably mounted within the sealing box 7. Multiple eccentric wheels 802 are installed on the adjustment spindle 801 corresponding to the positions of the adjustment rods 4. The multiple eccentric wheels 802 are installed with equal incremental deflection angles from the inside out. The transmission assembly includes a bevel gear pair for driving the two adjustment spindles 801. The input shaft of the bevel gear pair is connected to a reduction gear pair, and the input shaft of the reduction gear pair is connected to a worm gear drive. (See reference...) Figure 3 Multiple dial indicators 701 are fixedly installed on the top of the sealing box 7. The detection part of the dial indicator 701 contacts the top of the eccentric wheel 802. The arc adjustment mechanism 8 is the core of realizing synchronous arc adjustment. Each sealing box 7 has an adjustment main shaft 801, on which a series of eccentric wheels 802 with sequentially increasing phase angles are installed. When power is input through the worm gear drive, the two adjustment main shafts 801 are driven to rotate synchronously through the reduction gear pair and the bevel gear pair. When the main shaft rotates, each eccentric wheel 802 has a unique installation phase, and its protrusion pushes the ball head 401 on the top of the corresponding adjustment rod 4 to press down by different amounts.

[0045] like Figure 7 and Figure 8 As shown, by controlling the rotation angle of the main shaft 801, the extension length of all the adjusting rods 4, i.e. the amount of pressure, can be changed continuously and synchronously, thereby dynamically and continuously changing the arc curve of the forming mold formed by them to adapt to the production needs of leaf springs of different specifications. The dial indicator 701 is used to display the rotation position of each eccentric wheel 802, i.e. the amount of pressure of the adjusting rod 4, in real time, so as to facilitate digital setting and calibration, i.e. more accurate calculation of arc.

[0046] Since the formula for calculating the arc is existing technology, the core of the calculation is that you only need the coordinates of each point on the arc. Applied to this technical solution, it only requires knowing the height of the apex of each adjusting rod 4 after the eccentric wheel 802 rotates. Specifically:

[0047] Assume the radius of eccentric wheel 802 is The eccentricity from the center point of eccentric wheel 802 to the rotating shaft is Let the first The initial angle of the eccentric wheel 802 is synchronous rotation Afterwards, a new perspective was adopted. The initial position adjustment lever 4 has a vertex height of The height after rotation is Therefore, the upward movement distance is:

[0048] From the above, we can conclude that Size and initial angle Directly related, different initial angles result in different displacements, which perfectly matches the design logic of the eccentric wheel 802 in this patent. That is, by utilizing the synchronous rotation of the eccentric wheel 802 with different initial angles, different displacements are obtained. Then, based on existing formulas for calculating radii, the required radii can be calculated and assembled. Figure 7 For example, when the main shaft 801 rotates in direction A, the inner adjusting rod 4 descends a shorter distance than the outer adjusting rod 4. Figure 8 This means that the compression arc of the leaf spring becomes smaller.

[0049] refer to Figure 9 The immersion assembly 9 includes a first connecting seat 901 and a second connecting seat 903. The first connecting seat 901 and the second connecting seat 903 are respectively fixedly mounted on the base 1 and the lower gear seat 2. A large arm 902 is movably hinged between the first connecting seat 901 and the second connecting seat 903. A first hydraulic cylinder for driving the large arm 902 to rotate around the hinge point is also installed between the large arm 902 and the first connecting seat 901. A second hydraulic cylinder for rotating the second connecting seat 903 around the hinge point is also installed between the large arm 902 and the second connecting seat 903. The immersion assembly 9 is a multi-degree-of-freedom robotic arm used to quickly and smoothly immerse the pressed leaf spring, along with the lower toothed seat 2, the upper toothed seat 3, and the clamping assembly 6, into the quenching tank 101. The first hydraulic cylinder drives the upper arm 902 to swing around its hinge point with the base 1, realizing the lateral movement of the entire device between the horizontal plane and the quenching tank 101. The second hydraulic cylinder drives the second connecting seat 903, that is, the lower toothed seat 2, to rotate relative to the upper arm 902, realizing the adjustment of the leaf spring's posture, ensuring that it can be immersed in the quenching medium at the optimal angle and obtain a uniform cooling effect.

[0050] The forming device for processing automotive leaf springs described in this invention operates on the following principle:

[0051] First, according to the curvature requirements of the target leaf spring product, the operator uses the pre-adjustment component to initially position each adjusting rod, loosens the positioning bolts on each rod sleeve to allow it to slide freely along the longitudinal slide groove, and moves each rod sleeve to the corresponding position according to the preset curvature curve coordinates. Then, the positioning bolts are tightened again to lock it. At this time, the clamping components at the bottom of all adjusting rods together form a contour surface that is basically consistent with the target curvature and is distributed vertically. Then, the leaf spring blank heated to the austenitizing temperature is placed on the placement seat at the bottom of the lower gear seat and roughly centered.

[0052] At this point, the pressing and forming process starts the forming hydraulic cylinder, driving the upper tooth seat to move down as a whole. First, the pressure block at the bottom of the upper tooth seat cooperates with the placement seat on the lower tooth seat to pre-press and position the two ends of the leaf spring blank. As the upper tooth seat continues to move down, the upper clamping rod and the lower clamping rod fixed at the bottom of the upper and lower adjusting rods gradually contact and clamp the middle area of ​​the leaf spring blank from the upper and lower sides at the same time. Since the longitudinal position of each adjusting rod has been preset, and the clamping assembly has an upward initial contact force under the action of the spring, the leaf spring blank begins to be bent under the action of the corresponding upper and lower clamping rods, gradually fitting the preset arc mold surface formed by the endpoints of the upper and lower adjusting rods, completing the initial bending and forming.

[0053] When continuous and synchronous adjustment of the arc parameters is required, the worm gear drive is activated. Power is transmitted through the reduction gear pair and bevel gear pair to drive the two adjustment spindles to rotate synchronously and in the same direction. Multiple eccentric wheels installed on each adjustment spindle rotate with the shaft. Since these eccentric wheels are installed according to preset equal incremental deflection angles, when the spindle rotates by the same angle, the downward displacement generated by the protrusion of each eccentric wheel on the ball head directly above it is different. The ball head converts the rotational sliding friction of the eccentric wheel into rolling friction, accurately transmitting the downward pressure to the adjustment rod, overcoming the elastic force of the spring, and causing the adjustment rod to produce a longitudinal displacement corresponding to the phase of the eccentric wheel. This process acts synchronously on all adjustment rods, thereby continuously and accurately changing the shape and height of the arc profile curve formed by all clamping components without the need for individual and tedious manual adjustment of each tooth. For details, please refer to the formula above.

[0054] Once the leaf spring is pressed to the desired curvature and maintained under pressure, the immersion assembly begins operation. The first hydraulic cylinder drives the main arm to swing around its hinge point with the base, translating the entire lower and upper gear assembly, carrying the formed leaf spring, from the forming station to directly above the quenching tank. Subsequently, the second hydraulic cylinder drives the second connecting seat to rotate relative to the main arm, adjusting the leaf spring's posture to the optimal immersion angle. Then, the forming hydraulic cylinder or other auxiliary drive mechanism controls the upper and lower gear assemblies to descend as a whole, smoothly and quickly immersing the high-temperature leaf spring into the medium of the quenching tank. Under the condition of maintaining the forming pressure, rapid quenching and cooling are carried out, transforming the internal structure of the leaf spring into high-strength martensite. This completes the continuous process from hot forming to quenching and strengthening in one go, effectively reducing temperature loss and deformation risks caused by workpiece transfer, and improving production efficiency and product performance consistency.

[0055] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A forming device for processing automobile plate springs, comprising a base (1), wherein a quenching pool (101) is arranged on the base (1), and a lower tooth seat (2) is arranged directly above the quenching pool (101), wherein an upper tooth seat (3) is longitudinally and slidingly installed on the lower tooth seat (2), characterized in that, Both the lower gear seat (2) and the upper gear seat (3) are vertically provided with two rows of adjusting rods (4), and the system also includes: Multiple pre-adjustment components (5) for installing the adjusting rod (4), the bottom of the lower tooth seat (2) and the upper tooth seat (3) are provided with two rows of longitudinal sliding grooves, and the adjusting rod (4) is positioned at any position in the sliding groove by the pre-adjustment components (5) so that the ends of the multiple adjusting rods (4) form an arc; Multiple clamping assemblies (6) installed at the bottom of the adjusting rod (4) clamp the spring sheet to form an arc; The arc adjustment mechanism (8) is installed on the bottom of the lower tooth seat (2) and the upper tooth seat (3). The arc adjustment mechanism (8) is used to synchronously adjust the longitudinal position of each adjustment rod (4) and the lifting amount of each adjustment rod (4) is different, so as to achieve the purpose of adjusting the overall arc. The immersion assembly (9) installed between the base (1) and the upper gear seat (3) is used to immerse the pressed reed into the quenching pool (101).

2. The forming device for processing an automobile plate spring according to claim 1, wherein A forming hydraulic cylinder (201) for driving the upper tooth seat (3) to rise and fall is fixedly installed on the lower tooth seat (2). A placement seat (202) and a pressure block (301) are fixedly installed on the bottom of the lower tooth seat (2) and the bottom of the upper tooth seat (3), respectively. The mating surfaces of the placement seat (202) and the pressure block (301) are horizontal and are provided with strip-shaped pressure grooves.

3. The forming apparatus for processing automotive leaf springs according to claim 1, characterized in that, The pre-adjustment component (5) includes a sleeve (501), a T-shaped slide rail (502), and a positioning bolt (503). The adjusting rod (4) is movably inserted into the sleeve (501). The T-shaped slide rail (502) is provided in multiple pairs and is respectively installed on both sides of the longitudinal slide groove. The sleeve (501) slides and rotates between two adjacent T-shaped slide rails (502). The positioning bolt (503) passes through the longitudinal slide groove and is threadedly connected to the sleeve (501).

4. The forming apparatus for processing automotive leaf springs according to claim 3, characterized in that, A ball head (401) is fixedly installed on the top of the adjusting rod (4), a partition (402) is fixedly fitted on the adjusting rod (4), a spring (504) is fixedly installed between the top of the rod sleeve (501) and the partition (402), and a limit ring (505) is fixedly installed on the inner wall of the rod sleeve (501).

5. The forming apparatus for processing automotive leaf springs according to claim 1, characterized in that, The clamping assembly (6) includes a lower clamping rod (601) and an upper clamping rod (602), which are respectively fixed to the adjusting rods (4) on the lower gear seat (2) and the upper gear seat (3).

6. The forming apparatus for processing automotive leaf springs according to claim 1, characterized in that, The arc adjustment mechanism (8) includes a transmission component and two radially set adjustment components. The adjustment components include an adjustment main shaft (801). Two sealing boxes (7) are fixedly installed on the lower gear seat (2) and the upper gear seat (3). The adjustment main shaft (801) is rotatably installed in the sealing box (7). Multiple eccentric wheels (802) are installed on the adjustment main shaft (801) corresponding to the position of the adjustment rod (4). The multiple eccentric wheels (802) are installed with equal incremental deflection angles from the inside to the outside.

7. A forming apparatus for processing automotive leaf springs according to claim 6, characterized in that, The transmission assembly includes a bevel gear pair for driving two adjusting spindles (801), the input shaft of which is connected to a reduction gear pair, and the input shaft of which is connected to a worm gear drive.

8. A forming apparatus for processing automotive leaf springs according to claim 7, characterized in that, Multiple dial indicators (701) are fixedly installed on the top of the sealed box (7), and the detection part of the dial indicator (701) contacts the top of the eccentric wheel (802).

9. A forming apparatus for processing automotive leaf springs according to claim 1, characterized in that, The immersion assembly (9) includes a first connecting seat (901) and a second connecting seat (903). The first connecting seat (901) and the second connecting seat (903) are respectively fixedly installed on the base (1) and the lower tooth seat (2). The first connecting seat (901) and the second connecting seat (903) are movably hinged to the upper arm (902). A first hydraulic cylinder for driving the upper arm (902) to rotate around the hinge point is also installed between the upper arm (902) and the first connecting seat (901). A second hydraulic cylinder for the second connecting seat (903) to rotate around the hinge point is also installed between the upper arm (902) and the second connecting seat (903).

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