An automobile accessory adaptive precision servo press and a method of using the same

Abstract

The application discloses an automobile accessory self-adaptive precision servo press and a use method thereof, which comprises a conveying assembly arranged in the middle of a workbench, a buffer assembly arranged on the conveying assembly, clamping assemblies arranged on both sides of the buffer assembly in the middle of the workbench, and a stamping assembly arranged on the top end of the conveying assembly on the workbench. The second hydraulic rod, the clamping plate and the non-slip pad in the clamping assembly are designed, so that the automobile accessory is placed in the middle part of the lower die when the automobile accessory is pressed, the accurate pressing of the press on the material is ensured, the accurate splicing of the positioning column and the positioning hole of the upper pressing disc is matched, the pressing and forming of the material in the stroke can be effectively ensured, the die casting precision of the automobile accessory is ensured, meanwhile, the design of the multiple spring telescopic rods in the periphery of the equipment and the middle telescopic support rod can uniformly disperse the stamping stress.

Description

Technical Field

[0001] This invention relates to the field of servo press technology, specifically an adaptive precision servo press for automotive parts and its application method. Background Technology

[0002] The various units that make up a car and the products that serve the car are called auto parts. There are many types of auto parts, and with the improvement of people's living standards, auto parts manufacturing plants are also developing rapidly. Auto stamping parts are metal stamping parts that make up automotive components. Among auto stamping parts, some become automotive components directly after stamping, while others need to undergo welding, machining, painting, polishing, or other processes after stamping before they can become automotive components.

[0003] Existing adaptive precision servo presses for automotive parts achieve precise closed-loop control of pressure, displacement, and speed through servo motor drive to enable precision pressing, forming, or inspection of automotive parts. While this method can achieve high-precision flexible assembly of automotive parts, existing presses mostly rely on manual feeding, resulting in poor accuracy when aligning automotive parts. During the pressing process, the automotive parts within the mold are prone to radial displacement, leading to poor workpiece positioning stability and eccentricity during pressing. Furthermore, conventional spring buffer structures are prone to overload deformation under prolonged pressure, causing rapid stress decay of the springs and eventual failure of the buffering effect after long-term use.

[0004] Therefore, there is an urgent need to develop an adaptive precision servo press for automotive parts and its usage method to solve the problems of poor centering accuracy, eccentric pressing, and workpiece cracking caused by improper buffering in the existing technology, which mainly relies on manual feeding. Summary of the Invention

[0005] The purpose of this invention is to provide an adaptive precision servo press for automotive parts and its usage method, which can accurately clamp automotive parts, enabling them to be precisely aligned and pressed, while ensuring stable cushioning of the bottom end of the automotive parts by the buffer spring.

[0006] To achieve the above objectives, the present invention provides the following technical solution: An adaptive precision servo press for automotive parts and its usage method include a conveying assembly installed in the middle of a worktable, a buffer assembly provided on the conveying assembly, clamping assemblies arranged on both sides of the buffer assembly in the middle of the worktable, and a stamping assembly arranged on the top of the conveying assembly on the worktable. The stamping assembly includes a first hydraulic rod disposed at the top of the horizontal plate, the telescopic end of the first hydraulic rod being connected to an upper die, an upper pressure plate being arranged around the bottom of the horizontal plate around the upper die, and four positioning posts being arranged around the bottom of the upper pressure plate. The clamping assembly includes two clamping plates symmetrically installed, and the top circumference of the clamping plates is provided with positioning holes corresponding to the positioning posts; The conveying assembly includes a conveyor belt installed in a conveying trough, and a lower mold is provided at the top of the conveyor belt; The buffer assembly includes a lower pressure plate disposed at the bottom end of the lower mold. A spring telescopic rod is arranged around the bottom end of the lower pressure plate. A compression spring is installed inside the spring telescopic rod. A limit bushing is provided inside the spring telescopic rod around the compression spring. A telescopic support rod is installed in the middle of the bottom end of the lower pressure plate.

[0007] By adopting the above technical solution, when the conveying component continuously conveys the automotive parts, the clamping component can clamp and fix the automotive parts that have reached the pressing position to ensure the centering accuracy of the automotive parts. At the same time, the stamping component can press the automotive parts. With the design of the buffer component, the instantaneous rigid impact of the automotive parts under force is effectively buffered, and cracking of the workpiece edges is avoided.

[0008] As a further embodiment of the present invention: the positioning post is connected to the positioning hole slot, the inner sidewall of the clamping plate is provided with anti-slip pads, the bottom end of the lower mold is provided with a lower pressure plate, and two limiting slide plates are symmetrically installed on both sides of the lower pressure plate. The limiting slide plates are slidably connected to the lower mold through limiting slide grooves.

[0009] By adopting the above technical solution, the design of the positioning pin and positioning hole limits the position of the automotive parts. Then, the first hydraulic rod drives the upper mold to slide in the upper pressure plate, so that the upper mold enters the lower mold, realizing the coaxial pressing of the automotive parts by both molds, and ensuring the coaxial assembly of the automotive parts.

[0010] As a further aspect of the present invention: a second hydraulic rod is connected to the back end of the clamping plate, the fixed end of the second hydraulic rod is bolted to the fixed plate, and two mounting plates are symmetrically arranged on both sides of the conveyor belt, the fixed plate being bolted to the mounting plate.

[0011] By adopting the above technical solution, the design of the second hydraulic rod can drive the two clamping plates to move relative to each other, so as to clamp and fix the two sides of the automotive parts. While ensuring the stability of the automotive parts, the design of the positioning pin and positioning hole can restrict the automotive parts within the pressing stroke, thus ensuring the precise pressing of the automotive parts by the equipment.

[0012] As a further embodiment of the present invention: the horizontal plate is connected to the worktable and the top plate around its perimeter by sliding rods and threaded rods, and the sliding rods are bolted to the worktable.

[0013] By adopting the above technical solution, the design of the horizontal plate realizes the limiting installation of the stamping components. The four positioning pins and positioning hole slots are set to achieve coaxial locking and positioning of the upper and lower molds, avoiding the problems of press eccentricity and coaxiality difference in the press, so as to ensure the pressing and forming of precision automotive parts.

[0014] As a further embodiment of the present invention: the horizontal plate is slidably connected to the slide rod, the horizontal plate is threadedly connected to the threaded rod, one end of the threaded rod is provided with a motor, and the motor is keyed to the threaded rod.

[0015] By adopting the above technical solution, the motor drives the threaded rod to rotate, which, together with the slide rod, limits the horizontal plate, allowing the horizontal plate to move in the vertical direction, thereby achieving the fitting and limiting of the lower pressure plate and the clamping plate.

[0016] As a further aspect of the present invention: a groove is provided on the top plate at the top end of the first hydraulic rod, and the groove is a through groove.

[0017] By adopting the above technical solution, the groove design allows the top end of the first hydraulic rod to pass through the groove when the horizontal plate moves up and down, thus ensuring the movement path of the horizontal plate.

[0018] As a further aspect of the present invention: a control panel is installed on one side of the workbench, and an operation panel is provided on the control panel.

[0019] By adopting the above technical solution, the design of the control panel and operation panel facilitates the control of the device's electrical equipment, enabling each module to work flexibly and accurately.

[0020] As a further aspect of the present invention, it includes the following steps: S1. Equipment startup pre-test and parameter debugging: Start the control panel on one side of the workbench and complete the power-on self-test of the whole machine through the operation panel; S2. Workpiece Placement and Conveying Position: Place the automotive parts to be pressed smoothly into the lower mold at one end of the conveyor belt. The conveyor belt runs smoothly in the conveyor trough, moving the lower mold carrying the workpiece to the pressing station directly below the stamping assembly. S3. Double-sided clamping and fixing of workpiece: After the parameters are adjusted and the workpiece is in place, the clamping assembly works, and the second hydraulic rod pushes the clamping plates to move towards each other, so as to clamp and fix the automotive parts. S4. Stamping mechanism alignment and downward positioning: The motor drives the threaded rod to rotate, causing the horizontal plate to slide vertically downward smoothly along the slide bar, so that the horizontal plate and the upper mold and upper pressure plate at the bottom end move downward as a whole; during the downward movement, the four positioning pins around the bottom of the upper pressure plate are precisely inserted into the positioning holes at the top of the clamping plate, and the upper and lower molds are precisely locked and aligned through the slot connection. S5. Adaptive buffer precision press-fitting operation: After the alignment and locking are completed, the extension end of the first hydraulic rod drives the upper mold to move downward, applying a uniform press-fitting force to the automotive parts inside the lower mold. S6, Pressure Holding and Stress Relief: After the pressing stroke and pressure reach the preset process parameters, maintain constant pressure for 3-10 seconds to stabilize the interference fit strength of the parts; after the pressure holding is completed, the first hydraulic rod retracts to drive the upper mold to move upward and reset, while the compression spring rebounds to lift the lower pressure plate and release the residual stress in the local assembly of the workpiece. S7. Unclamping and continuous operation: After all the pressing processes are completed, the second hydraulic rods on both sides retract, driving the clamping plate to move in the opposite direction to release the workpiece; start the conveyor belt to transport the finished workpiece after pressing out. If mass production is required, repeat steps S2 to S7 to achieve continuous precision pressing processing of automotive parts. S8. Equipment Shutdown Maintenance: After a single batch of processing is completed, shut down the entire machine operation program through the control panel and cut off the power supply to the equipment; clean the impurities and debris from the worktable, upper and lower molds and conveyor belt surfaces; check the wear condition of the extrusion springs, spring extension rods, positioning columns and positioning holes; complete the daily maintenance of the equipment to ensure the long-term operating accuracy of the equipment.

[0021] By adopting the above technical solution, when the conveyor belt is working, the lower mold can continuously feed multiple automotive parts. With the design of the stamping component and the clamping component, the precise pressing of automotive parts is achieved. In addition, the design of the buffer component can buffer the stress when pressing the automotive parts to ensure that the device can adaptively press the automotive parts.

[0022] As a further aspect of the present invention: in steps S3 and S4, the anti-slip pads on the inner side of the clamping plate are closely attached to the outer walls on both sides of the workpiece to flexibly clamp and fix the workpiece, and the positioning holes limit the positioning pins to keep the workpiece coaxially aligned with the upper mold and the upper pressure plate.

[0023] By adopting the above technical solution, the clamping plate design can clamp and fix the two sides of the automotive parts, while ensuring that the automotive parts are in the center of the lower mold. After the positioning pin is inserted into the positioning hole, the automotive parts can be placed in the pressing stroke, effectively ensuring the precise pressing of the automotive parts.

[0024] As a further aspect of the present invention: In step S5, the workpiece is pressed downwards against the lower pressure plate at the bottom of the mold, the compression spring inside the spring telescopic rod is compressed by force, and at the same time the limiting bushing restricts the maximum deformation stroke of the compression spring to avoid overload deformation and stress attenuation of the spring.

[0025] By adopting the above technical solution, four spring telescopic rods are distributed around the bottom of the lower pressure plate. When pressing the automotive parts, the springs can uniformly buffer the force. At the same time, after the lower pressure plate rebounds, the pressed automotive parts can be ejected. When the conveyor belt rotates, the automotive parts can be automatically unloaded.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows: Compared with the existing manual feeding, the lower mold of this application can limit the feeding of automotive parts. Through the design of the second hydraulic rod, clamping plate and anti-slip pad in the clamping assembly, the automotive parts are placed in the center of the lower mold when pressing, so as to ensure the precise pressing of the material by the press. In addition, with the precise splicing of the positioning pin and positioning hole of the upper pressure plate, the pressing and forming of the material within the stroke can be effectively guaranteed, thus ensuring the die-casting accuracy of the automotive parts. At the same time, the design of multiple sets of spring telescopic rods in the circumference of the equipment and the central telescopic support rod can evenly distribute the stamping stress. Furthermore, the addition of a limiting bushing on the outer periphery of the extrusion spring can strictly limit the maximum compression stroke of the spring, prevent the spring from over-range plastic deformation, and ensure that the equipment can press stably for a long time.

[0027] Other features and advantages of the present invention will be disclosed in detail in the following detailed description and accompanying drawings. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of an adaptive precision servo press for automotive parts according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of a buffer component in an adaptive precision servo press for automotive parts according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the clamping component and the stamping component in an adaptive precision servo press for automotive parts according to an embodiment of the present invention; Figure 4 This is a main sectional view of a telescopic support rod in an adaptive precision servo press for automotive parts, as described in an embodiment of the present invention. Figure 5 This is a flowchart illustrating the usage method of an adaptive precision servo press for automotive parts according to an embodiment of the present invention.

[0029] The labels for the attached figures are as follows: 1. Workbench; 2. Control panel; 201. Control panel; 3. Conveying assembly; 301. Conveyor belt; 302. Mounting plate; 303. Conveying trough; 4. Top slab; 5. Buffer assembly; 501. Lower pressure plate; 502. Limiting slide plate; 503. Telescopic support rod; 504. Lower mold; 505. Limiting slide groove; 506. Limiting bushing; 507. Compression spring; 508. Spring telescopic rod; 6. Clamping assembly; 601. Anti-slip pad; 602. Clamping plate; 603. Positioning hole; 604. Second hydraulic rod; 605. Fixing plate; 606. Positioning post; 7. Stamping assembly; 701. Upper pressure plate; 702. Upper die; 703. First hydraulic rod; 704. Slide rod; 705. Groove; 706. Motor; 707. Threaded rod; 708. Horizontal plate. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] In this embodiment of the invention, an adaptive precision servo press for automotive parts and its usage method are described below. Figure 1-5 As shown, it includes a conveying assembly 3 installed in the middle of the workbench 1, a buffer assembly 5 provided on the conveying assembly 3, clamping assemblies 6 arranged on both sides of the buffer assembly 5 in the middle of the workbench 1, and a stamping assembly 7 arranged on the top of the conveying assembly 3 on the workbench 1. The stamping assembly 7 includes a first hydraulic rod 703 disposed at the top of the horizontal plate 708. The telescopic end of the first hydraulic rod 703 is connected to an upper mold 702. An upper pressure plate 701 is arranged around the bottom of the horizontal plate 708 around the upper mold 702. Four positioning posts 606 are arranged around the bottom of the upper pressure plate 701. The clamping assembly 6 includes two symmetrically installed clamping plates 602, and the top circumference of the clamping plate 602 is provided with positioning holes 603 corresponding to the positioning post 606. The conveying assembly 3 includes a conveyor belt 301 installed in the conveying groove 303, and a lower mold 504 is provided at the top of the conveyor belt 301. The buffer assembly 5 includes a lower pressure plate 501 disposed at the bottom end of the lower mold 504. A spring telescopic rod 508 is arranged around the bottom end of the lower pressure plate 501. A compression spring 507 is installed inside the spring telescopic rod 508. A limit bushing 506 is provided inside the spring telescopic rod 508 around the compression spring 507. A telescopic support rod 503 is installed in the middle of the bottom end of the lower pressure plate 501.

[0032] In this embodiment, the positioning post 606 is slotted with the positioning hole 603, and the inner sidewall of the clamping plate 602 is provided with anti-slip pads 601. The bottom end of the lower mold 504 is provided with a lower pressure plate 501. Two limiting slide plates 502 are symmetrically installed on both sides of the lower pressure plate 501. The limiting slide plates 502 are slidably connected to the lower mold 504 through limiting slide grooves 505. The positioning post 606, in conjunction with the design of the positioning hole 603, after limiting the automotive parts, drives the upper mold 702 to slide in the upper pressure plate 701, so that the upper mold 702 enters the lower mold 504, realizing the coaxial pressing of the automotive parts by both, and ensuring the coaxial assembly of the automotive parts.

[0033] In this embodiment, a second hydraulic rod 604 is connected to the back end of the clamping plate 602. The fixed end of the second hydraulic rod 604 is bolted to the fixing plate 605. Two mounting plates 302 are symmetrically arranged on both sides of the conveyor belt 301. The fixing plate 605 is bolted to the mounting plate 302. The design of the second hydraulic rod 604 can drive the two clamping plates 602 to move relative to each other, so as to realize the clamping plates 602 clamping and fixing the two sides of the automotive parts. While ensuring the stability of the automotive parts, the design of the positioning pin 606 and the positioning hole 603 can restrict the automotive parts within the pressing stroke, ensuring the precise pressing of the automotive parts by the equipment.

[0034] In this embodiment, the horizontal plate 708 is connected to the worktable 1 and the top plate 4 around its perimeter by sliding rods 704 and threaded rods 707. The sliding rods 704 are bolted to the worktable 1. The design of the horizontal plate 708 enables the limiting installation of the stamping assembly 7. Four positioning pins 606 are set to engage with the positioning holes 603 in a slotted manner to achieve coaxial locking and positioning of the upper mold 702 and the lower mold 504, avoiding problems such as press eccentricity and coaxiality difference in the press, so as to ensure the pressing and forming of precision automotive parts.

[0035] In this embodiment, the horizontal plate 708 is slidably connected to the slide rod 704, and the horizontal plate 708 is threadedly connected to the threaded rod 707. A motor 706 is provided at one end of the threaded rod 707, and the motor 706 is keyed to the threaded rod 707. The motor 706 drives the threaded rod 707 to rotate, which, together with the slide rod 704, limits the horizontal plate 708, allowing the horizontal plate 708 to move in the vertical direction, thereby achieving the contact and limiting of the lower pressure plate 501 and the clamping plate 602.

[0036] In this embodiment, a groove 705 is provided on the top plate 4 at the top end of the first hydraulic rod 703. The groove 705 is a through groove. The design of the groove 705 is such that when the horizontal plate 708 moves up and down, the top end of the first hydraulic rod 703 can pass through the groove 705 to ensure the movement path of the horizontal plate 708.

[0037] In this embodiment, a control console 2 is installed on one side of the workbench 1. An operation panel 201 is provided on the control console 2. The design of the control console 2 in conjunction with the operation panel 201 facilitates the control of the electrical equipment of the device, so as to enable the flexible and precise operation of each module.

[0038] Example 1: A general-purpose precision steel bearing for automotive transmissions is selected as the press-fitting workpiece. The workpiece specifications are: outer diameter 30mm, inner diameter 18mm, and height 25mm. It is a rubber + metal nested composite automotive part, and includes the following steps: S1. Equipment startup pre-inspection and parameter debugging: Start the control panel 2 on one side of the workbench 1, and complete the power-on self-test of the whole machine through the operation panel 201. Set the rated pressing force to 2600N, effective pressing stroke to 11mm, pressure holding time to 8s, and pressing downward speed to 6mm / s. After confirming that the parameters are correct, standby mode is activated. S2. Workpiece Placement and Conveying Position: Place the automotive precision metal bearing to be press-fitted stably and horizontally in the high-precision positioning groove of the lower mold 504 at one end of the conveyor belt 301, ensuring that the bearing end face is horizontal, without tilting or offset; start the conveying program, and the conveyor belt 301 runs at a uniform speed, accurately conveying the metal bearing to the pressing station directly below the stamping assembly 7. S3. Double-sided clamping and fixing of workpiece: After the workpiece is in place, the second hydraulic rods 604 on both sides extend synchronously and smoothly, driving the left and right clamping plates 602 to move towards each other. The anti-slip pads 601 on the inner side of the clamping plates 602 are tightly attached to the side wall of the outer ring of the metal bearing, achieving high-strength centered clamping and fixing. In view of the large force of hard metal pressing, the equipment maintains a rigid clamping reference, eliminating the slight slippage and deviation of the workpiece during the high-pressure pressing process, and ensuring the absolute stability of the pressing reference. S4. Positioning and descent of the stamping mechanism: The motor 706 drives the threaded rod 707 to rotate precisely, which drives the horizontal plate 708 to descend vertically and smoothly along the vertical slide bar 704. The upper die 702 and the upper pressure plate 701 move down synchronously. The four positioning pins 606 at the bottom of the upper pressure plate 701 are precisely inserted into the positioning holes 603 at the top of the clamping plate 602 to form a slot-type rigid lock, so that the upper die 702, the workpiece, and the lower die 504 are completely coaxial, ensuring that the metal bearing is evenly pressed around the entire circle. S5. Adaptive Buffer Precision Pressing Operation: After the alignment and locking are completed, the first hydraulic rod 703 extends at a low speed and stably, driving the upper mold 702 to apply a uniform and vertical high-pressure pressing force to the metal bearing; the instantaneous impact load of the hard metal pressing is extremely large, the lower pressure plate 501 is pressed down by the force, the compression spring 507 extension rod and compression spring 507 are compressed and buffered, and at the same time the limit bushing 506 strictly limits the maximum compression stroke of the spring to avoid over-pressure plastic deformation and rapid stress decay of the spring under high pressure conditions, so that the force of the high-pressure pressing process is stable and there is no impact or vibration, ensuring that the end face of the metal bearing is flat, without indentation, and without eccentric extrusion; S6. Pressure Holding and Stress Relief: When the pressing stroke reaches 11mm and the pressing force stabilizes at the rated process value of 2600N, the equipment maintains constant pressure for 8s, enabling the metal bearing and the base to achieve a tight interference fit and eliminating assembly gaps. After the pressure holding is completed, the first hydraulic rod 703 moves upward smoothly to reset, and the compression spring 507 rebounds to lift the lower pressure plate 501, releasing a small amount of the high-intensity mechanical residual stress generated by the metal interference fit, thus avoiding problems such as internal stress concentration, later deformation, and abnormal noise during operation after the metal bearing is assembled. S7, Unclamping and continuous operation: After the high-pressure precision pressing process is completed, the second hydraulic rods 604 on both sides retract synchronously, and the clamping plate 602 releases the workpiece; the conveyor belt 301 starts and conveys the finished precision metal bearing through the press; during mass production, S2 to S7 are executed in a cycle, which can realize continuous high-precision pressing of large batches of hard metal auto parts. S8. Equipment shutdown maintenance: After the single batch of metal bearings is press-fitted, shut down the equipment program and disconnect the power; thoroughly clean the metal dust and iron filings on the mold surface, and focus on checking the fatigue state of the extrusion spring 507, the wear of the limit bushing 506, and the alignment accuracy of the positioning column 606 and the positioning hole 603 to ensure the long-term structural accuracy and buffer stability of the equipment under high pressure conditions.

[0039] This invention provides an adaptive precision servo press for automotive parts and its usage method, which can accurately clamp automotive parts, enabling them to be precisely aligned and pressed, while ensuring stable cushioning of the bottom end of the automotive parts by the buffer spring.

[0040] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0041] 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. An adaptive precision servo press for automotive parts, characterized in that, It includes a conveying assembly (3) installed in the middle of the workbench (1), a buffer assembly (5) is provided on the conveying assembly (3), clamping assemblies (6) are arranged on both sides of the buffer assembly (5) in the middle of the workbench (1), and a stamping assembly (7) is arranged on the top of the conveying assembly (3) on the workbench (1). The stamping assembly (7) includes a first hydraulic rod (703) disposed at the top of the horizontal plate (708), the telescopic end of the first hydraulic rod (703) is connected to an upper mold (702), the bottom end of the horizontal plate (708) is provided with an upper pressure plate (701) around the upper mold (702), and four positioning pins (606) are provided around the bottom end of the upper pressure plate (701). The clamping assembly (6) includes two clamping plates (602) installed symmetrically, and the top of the clamping plate (602) is provided with positioning holes (603) corresponding to the positioning post (606). The conveying assembly (3) includes a conveyor belt (301) installed in a conveying groove (303), and a lower mold (504) is provided at the top of the conveyor belt (301). The buffer assembly (5) includes a lower pressure plate (501) disposed at the bottom of the lower mold (504). A spring telescopic rod (508) is arranged around the bottom of the lower pressure plate (501). A compression spring (507) is installed inside the spring telescopic rod (508). A limit bushing (506) is provided inside the spring telescopic rod (508) around the compression spring (507). A telescopic support rod (503) is installed in the middle of the bottom of the lower pressure plate (501).

2. The adaptive precision servo press for automotive parts according to claim 1, characterized in that, The clamping plate (602) is provided with anti-slip pads (601) on its inner sidewall. The lower mold (504) is provided with a lower pressure plate (501) at its inner bottom. Two limiting slide plates (502) are symmetrically installed on both sides of the lower pressure plate (501). The limiting slide plates (502) are slidably connected to the lower mold (504) through limiting slide grooves (505).

3. The adaptive precision servo press for automotive parts according to claim 1, characterized in that, The back end of the clamping plate (602) is connected to a second hydraulic rod (604), and the fixed end of the second hydraulic rod (604) is bolted to the fixing plate (605). Two mounting plates (302) are symmetrically arranged on both sides of the conveyor belt (301), and the fixing plate (605) is bolted to the mounting plate (302).

4. The adaptive precision servo press for automotive parts according to claim 1, characterized in that, The horizontal plate (708) is connected to the workbench (1) and the top plate (4) around its perimeter by sliding rods (704) and threaded rods (707), and the sliding rods (704) are bolted to the workbench (1).

5. The adaptive precision servo press for automotive parts according to claim 4, characterized in that, The horizontal plate (708) is slidably connected to the slide rod (704), and the horizontal plate (708) is threadedly connected to the threaded rod (707). One end of the threaded rod (707) is provided with a motor (706), and the motor (706) is keyed to the threaded rod (707).

6. The adaptive precision servo press for automotive parts according to claim 1, characterized in that, The top plate (4) has a groove (705) at the top of the first hydraulic rod (703), and the groove (705) is a through groove.

7. The adaptive precision servo press for automotive parts according to claim 1, characterized in that, A control panel (2) is installed on one side of the workbench (1), and an operation panel (201) is provided on the control panel (2).

8. A method of using an adaptive precision servo press for automotive parts, comprising the adaptive precision servo press for automotive parts as described in any one of claims 1 to 7, characterized in that, Includes the following steps: S1. Equipment startup pre-inspection and parameter debugging: Start the control panel (2) on one side of the workbench (1) and complete the power-on self-test of the whole machine through the operation panel (201); S2. Workpiece placement and conveying: The automotive parts to be pressed are placed smoothly in the lower mold (504) at one end of the conveyor belt (301). The conveyor belt (301) runs smoothly in the conveyor groove (303), which drives the lower mold (504) carrying the workpiece to the pressing station directly below the stamping assembly (7). S3. Double-sided clamping and fixing of workpiece: After the parameters are adjusted and the workpiece is in place, the clamping assembly (6) works, and the driving component pushes the clamping plate (602) to move towards each other, so as to realize the clamping and fixing of the car parts by the clamping plate (602); S4. The stamping mechanism is positioned and positioned downwards: The motor (706) drives the threaded rod (707) to rotate, which drives the horizontal plate (708) to slide vertically downwards smoothly along the slide rod (704), so that the horizontal plate (708) and the upper mold (702) and upper pressure plate (701) at the bottom end move downwards as a whole; during the downward movement, the four positioning pins (606) around the bottom of the upper pressure plate (701) are precisely inserted into the positioning holes (603) at the top of the clamping plate (602), and the upper and lower molds (504) are locked and aligned through the slot connection; S5, Adaptive buffer precision pressing operation: After the alignment and locking are completed, the extension end of the first hydraulic rod (703) drives the upper mold (702) to move downward, and applies a uniform pressing force to the automotive parts inside the lower mold (504); S6, Pressure Holding and Stress Relief: When the pressing stroke and pressure reach the preset process parameters, maintain constant pressure for 3 to 10 seconds to stabilize the interference fit strength of the parts; after the pressure holding is completed, the first hydraulic rod (703) retracts and drives the upper mold (702) to move upward and reset, while the squeeze spring (507) rebounds and lifts the lower pressure plate (501) to release the residual stress of the local assembly of the workpiece; S7. Unclamping and continuous operation: After all the pressing processes are completed, the second hydraulic rods (604) on both sides retract, driving the clamping plate (602) to move in the opposite direction to release the workpiece; start the conveyor belt (301) to transport the finished workpiece after pressing out. If mass production is required, repeat steps S2 to S7 to realize continuous precision pressing processing of automotive parts. S8. Equipment shutdown maintenance: After a single batch of processing is completed, shut down the whole machine operation program through the control panel (2) and cut off the power supply to the equipment; clean the impurities and debris on the surface of the workbench (1), upper and lower molds (504) and conveyor belt (301), check the wear condition of the compression spring (507), spring telescopic rod (508), positioning column (606) and positioning hole (603), complete the daily maintenance of the equipment, and ensure the long-term operating accuracy of the equipment.

9. The method of using an adaptive precision servo press for automotive parts according to claim 8, characterized in that, In steps S3 and S4, the anti-slip pad (601) on the inner side of the clamping plate (602) is tightly attached to the outer walls of both sides of the workpiece to flexibly clamp and fix the workpiece. In conjunction with the positioning hole (603) to limit the positioning column (606), the workpiece is kept coaxially aligned with the upper mold (702) and the upper pressure plate (701).

10. The method of using an adaptive precision servo press for automotive parts according to claim 8, characterized in that, In step S5, the workpiece is pressed downward to squeeze the lower pressure plate (501) at the bottom of the lower mold (504). The compression spring (507) inside the spring telescopic rod (508) is compressed by force. At the same time, the limiting bushing (506) limits the maximum deformation stroke of the compression spring (507) to avoid overload deformation and stress attenuation of the spring.

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