Press machine for manufacturing automobile anti-collision beam

Abstract

The utility model relates to the field of automobile part manufacturing equipment, and discloses a press machine for manufacturing an automobile anti-collision beam, which comprises a base, a fixing rod is fixedly connected to the side wall of the base, a fixing frame is fixedly connected to the side wall of the fixing rod, a buffer assembly is arranged on the side wall of the base, a hydraulic cylinder is arranged in the fixing frame, and a hydraulic cylinder is arranged in the hydraulic cylinder. A connecting frame is slidably connected to the side wall of the fixing rod, the output end of the hydraulic cylinder is connected with the connecting frame, a fixing assembly is arranged in the connecting frame, and a lower mold is arranged on the side wall of the base. The buffering assembly comprises a supporting column. According to the utility model, when the connecting frame moves to the fixing plate, the rubber pad firstly contacts and buffers, then the fixing plate drives the connecting column to slide in the supporting column to extrude the first spring and the second spring, and meanwhile, the pressure is transmitted to the damper to consume impact energy. The problems that equipment vibration is large and a die is prone to being damaged due to rigid contact pressing of a traditional press are solved, and the operation stability of the press is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of automobile parts manufacturing equipment, especially to a press for automobile crash beam manufacturing. BACKGROUND

[0002] As a key component in the passive safety system of the automobile, the automobile crash beam is usually made of high-strength steel or aluminum alloy and is installed at the front and rear parts of the vehicle. When the vehicle encounters a collision accident, it can effectively absorb and disperse the huge energy generated by the collision by virtue of its structural characteristics and material strength, slow down the instantaneous impact force of the vehicle, and thus reduce the harm to the driver and passengers, thereby protecting the life safety. Because it bears such an important protection mission, the automobile crash beam must have extremely high strength and precise size specifications to ensure that it can function stably in various complex collision scenarios. During its manufacturing process, the press plays an irreplaceable key role. Under the action of the powerful pressure of the press, the raw material can be precisely deformed by the precise cooperation of the upper and lower molds, thereby being processed into a complex shape and size that meets the design requirements.

[0003] The press used in the traditional automobile crash beam manufacturing is of the mechanical transmission type, which relies on the rotation of the motor to drive the belt pulley to rotate, and the meshing transmission between the gears promotes the rotation of the crankshaft, which in turn cleverly converts the rotary motion into the linear reciprocating motion of the slider carrying the upper mold to realize the stamping operation on the blank in the lower mold. The hydraulic drive press uses a hydraulic pump as a power source to pressurize the hydraulic oil and uses the thrust generated by the hydraulic cylinder to move the upper mold downward to complete the stamping process.

[0004] During the pressing process, the upper mold, the lower mold and the blank are directly pressed in a rigid contact manner. When the pressure is applied instantaneously, the strong impact force is released without any buffer, causing the equipment to vibrate violently. This strong vibration brings stress to the mechanical parts of the press far beyond the normal load, accelerating the wear process of the parts. At the same time, the frequent and violent vibration is particularly harmful to the mold, and cracks are easily formed on the surface of the mold, and the degree of wear is also rapidly increased. Therefore, a press for automobile crash beam manufacturing is proposed to solve the above problems. SUMMARY

[0005] In order to make up for the above shortcomings, the utility model provides a press for automobile crash beam manufacturing, which aims to improve the problem of large equipment vibration and easy damage to the mold caused by direct rigid contact pressing during the pressing process of the traditional press in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A press for manufacturing automotive anti-collision beams includes a base, a fixed rod fixedly connected to the side wall of the base, a fixed frame fixedly connected to the side wall of the fixed rod, a buffer assembly provided on the side wall of the base, a hydraulic cylinder provided inside the fixed frame, a connecting frame slidably connected to the side wall of the fixed rod, the output end of the hydraulic cylinder being connected to the connecting frame, a fixed assembly provided inside the connecting frame, and a lower mold provided on the side wall of the base.

[0008] The buffer assembly includes a support column, the side wall of which is fixedly connected to the side wall of the base, a connecting column slidably connected inside the support column, a first spring inside the support column, a fixing plate fixedly connected to the side wall of the connecting column, a rubber pad fixedly connected to the side wall of the fixing plate, a second spring sleeved on the side wall of the connecting column, and a damper fixedly installed between the base and the fixing plate.

[0009] As a further description of the above technical solution:

[0010] The fixing component includes an upper mold, which is slidably connected to the side wall of the connecting frame, and a sliding groove plate is fixedly connected inside the connecting frame;

[0011] As a further description of the above technical solution:

[0012] A slider is slidably connected to the side wall of the slide plate, and a rack is fixedly connected to the side wall of the slider.

[0013] As a further description of the above technical solution:

[0014] The connecting frame is rotatably connected to a gear, and the rack meshes with the gear;

[0015] As a further description of the above technical solution:

[0016] A motor is installed inside the connecting frame, and the output end of the motor is connected to the gear;

[0017] As a further description of the above technical solution:

[0018] The slider sidewall is fixedly connected to a clamping plate, the clamping plate is slidably connected inside the connecting frame, and the clamping plate is slidably connected inside the upper mold;

[0019] As a further description of the above technical solution:

[0020] One end of the first spring is fixedly connected to the side wall of the connecting column, and the other end of the first spring is fixedly connected to the inside of the support column;

[0021] As a further description of the above technical solution:

[0022] One end of the second spring is fixedly connected to the side wall of the support column, and the other end of the second spring is fixedly connected to the side wall of the fixing plate.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the hydraulic cylinder is activated to push the connecting frame downward, and the upper mold presses the material inside the lower mold. When the connecting frame moves to the fixed plate, the rubber pad contacts first. As the connecting frame continues to move downward, the fixed plate drives the connecting column to slide inside the support column, squeezing the first spring and the second spring. At the same time, the pressure is transmitted to the damper to consume the impact energy. This solves the problem of large equipment vibration and easy mold damage caused by direct rigid contact pressing during the pressing process of traditional presses. The above technical solution improves the stability of press operation and extends the service life of the mold.

[0025] 2. In this utility model, when installing the upper mold, the motor is started to drive the gear to rotate. The gear meshes with the rack and pinion, causing the slider to slide on the slide plate, so that the clamping plate extends and inserts into the upper mold, fixing it on the connecting frame. When disassembling, the motor reverses, the clamping plate retracts and releases the fixation, completing the installation and disassembly of the upper mold on the connecting frame. This solves the problem that traditional molds use bolt connections, which require manual tightening or loosening of bolts one by one, making the operation cumbersome. The above technical solution improves the efficiency of mold installation and disassembly. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a press for manufacturing automotive anti-collision beams according to the present invention.

[0027] Figure 2 This is a schematic diagram of the internal structure of the support column of a press for manufacturing automotive anti-collision beams according to this utility model;

[0028] Figure 3 This is a schematic diagram of the internal structure of the connecting frame of a press for manufacturing automotive anti-collision beams, as proposed in this utility model.

[0029] Legend:

[0030] 1. Base; 2. Fixing rod; 3. Fixing frame; 4. Hydraulic cylinder; 5. Connecting frame; 6. Lower mold; 7. Support column; 8. Connecting column; 9. First spring; 10. Fixing plate; 11. Rubber pad; 12. Second spring; 13. Upper mold; 14. Slide plate; 15. Slider; 16. Rack; 17. Gear; 18. Motor; 19. Clamping plate; 20. Damper. Detailed Implementation

[0031] 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.

[0032] Reference Figure 1 and Figure 2 This utility model provides an embodiment of a press for manufacturing automotive anti-collision beams, comprising a base 1, a fixing rod 2 fixedly connected to the side wall of the base 1, a fixing frame 3 fixedly connected to the side wall of the fixing rod 2, a buffer assembly provided on the side wall of the base 1, a hydraulic cylinder 4 disposed inside the fixing frame 3, a connecting frame 5 slidably connected to the side wall of the fixing rod 2, the output end of the hydraulic cylinder 4 being connected to the connecting frame 5, a fixing assembly disposed inside the connecting frame 5, and a lower mold 6 disposed on the side wall of the base 1; the buffer assembly includes a support column 7, the side wall of the support column 7 being fixedly connected to the side wall of the base 1, and a connecting frame 6 slidably connected inside the support column 7. The connecting column 8 and the support column 7 are equipped with a first spring 9. A fixing plate 10 is fixedly connected to the side wall of the connecting column 8. A rubber pad 11 is fixedly connected to the side wall of the fixing plate 10. A second spring 12 is sleeved on the side wall of the connecting column 8. The first spring 9 and the second spring 12 are used for rebound and reset. A damper 20 is fixedly installed between the base 1 and the fixing plate 10. One end of the first spring 9 is fixedly connected to the side wall of the connecting column 8, and the other end of the first spring 9 is fixedly connected to the inside of the support column 7. One end of the second spring 12 is fixedly connected to the side wall of the support column 7, and the other end of the second spring 12 is fixedly connected to the side wall of the fixing plate 10.

[0033] When the press is started, the hydraulic cylinder 4 pushes the connecting frame 5 downward, causing the upper mold 13 to press the material in the lower mold 6. When the connecting frame 5 moves to the fixed plate 10, the rubber pad 11 contacts the connecting frame 5 first, acting as a buffer and protector to prevent additional energy consumption from hard collisions. As the connecting frame 5 moves downward, the fixed plate 10 moves downward, causing the connecting column 8 to slide inside the support column 7, compressing the first spring 9. The first spring 9 absorbs some of the energy during the press's downward pressing process, reducing energy loss in the form of vibration, and also providing buffer protection for the equipment, extending its service life and reducing resource consumption caused by equipment damage, repair, or replacement. At the same time, the movement of the fixed plate 10 compresses the second spring 12, which further buffers the pressure, stabilizing the press's downward pressing process, making the pressing process more stable, reducing the scrap rate caused by uneven material stress, thereby saving raw materials and achieving energy saving and consumption reduction. At the same time, the movement of the fixed plate 10 transmits the pressure of the connecting frame 5 to the damper 20. The damper 20 consumes the impact energy, suppresses equipment vibration, reduces the energy loss caused by equipment vibration, and also reduces noise pollution caused by vibration.

[0034] Reference Figure 1 and Figure 3 The fixing component includes an upper mold 13, which is slidably connected to the side wall of the connecting frame 5. A slide plate 14 is fixedly connected inside the connecting frame 5. A slider 15 is slidably connected to the side wall of the slide plate 14. The slide plate 14 is used to provide a sliding track for the slider 15. A rack 16 is fixedly connected to the side wall of the slider 15. A gear 17 is rotatably connected inside the connecting frame 5. The rack 16 meshes with the gear 17. A motor 18 is installed inside the connecting frame 5. The output end of the motor 18 is connected to the gear 17. A clamping plate 19 is fixedly connected to the side wall of the slider 15. The clamping plate 19 is used to be inserted into the upper mold 13 for fixing. The clamping plate 19 is slidably connected inside the connecting frame 5 and the upper mold 13.

[0035] When the upper mold 13 is installed, the motor 18 is started. The motor 18, as a power source, outputs rotational power that drives the gear 17 to rotate. The gear 17 meshes with the rack 16, and the rotation of the gear 17 is converted into the linear motion of the rack 16, causing the rack 16 to drive the slider 15 to slide on the side wall of the slide plate 14. The slide plate 14 provides a sliding track for the slider 15, preventing the slider 15 from deviating or shaking. The retaining plate 19 fixed to the side wall of the slider 15 will extend or retract as the slider 15 moves. When the retaining plate 19 extends, it can be inserted into the upper mold 13. After the retaining plate 19 is inserted into the upper mold 13, it can restrict the position of the upper mold 13 and fix the upper mold 13 to the side wall of the connecting frame 5, ensuring that the upper mold 13 will not loosen or shift during the operation of the press, and ensuring the smooth progress of the pressing work. When it is necessary to disassemble the upper mold 13, the motor 18 reverses, causing the clamping plate 19 to retract. After the clamping plate 19 retracts, it releases the fixing effect on the upper mold 13, and the upper mold 13 can be removed from the connecting frame 5. This allows for the installation and removal of the upper mold 13 on the connecting frame 5. This method enables quick replacement of the upper mold 13, improves production efficiency, and also facilitates the maintenance and upkeep of the upper mold 13.

[0036] Working principle: When the press starts, the hydraulic cylinder 4 pushes the connecting frame 5 downward, so that the upper mold 13 presses the material in the lower mold 6. When the connecting frame 5 moves to the fixed plate 10, the rubber pad 11 contacts the connecting frame 5 first. As the connecting frame 5 moves downward, the fixed plate 10 moves downward, so that the connecting column 8 slides inside the support column 7, compressing the first spring 9. At the same time, the movement of the fixed plate 10 compresses the second spring 12. Simultaneously, the movement of the fixed plate 10 transmits the pressure of the connecting frame 5 to the damper 20, and the damper 20 consumes the impact energy.

[0037] When the upper mold 13 is installed, the motor 18 is started to drive the gear 17 to rotate. Since the gear 17 meshes with the rack 16, the rack 16 drives the slider 15 to slide on the side wall of the slide plate 14. The clamping plate 19 fixed on the side wall of the slider 15 will extend or retract as the slider 15 moves. When the clamping plate 19 extends, it can be inserted into the upper mold 13 to fix the upper mold 13 to the side wall of the connecting frame 5. When it is necessary to remove the upper mold 13, the motor 18 reverses to retract the clamping plate 19 and release the fixation on the upper mold 13, thereby realizing the installation and removal of the upper mold 13 on the connecting frame 5.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A press for manufacturing automotive anti-collision beams, comprising a base (1), characterized in that: A fixing rod (2) is fixedly connected to the side wall of the base (1), a fixing frame (3) is fixedly connected to the side wall of the fixing rod (2), a buffer assembly is provided on the side wall of the base (1), a hydraulic cylinder (4) is provided inside the fixing frame (3), a connecting frame (5) is slidably connected to the side wall of the fixing rod (2), the output end of the hydraulic cylinder (4) is connected to the connecting frame (5), a fixing assembly is provided inside the connecting frame (5), and a lower mold (6) is provided on the side wall of the base (1). The buffer assembly includes a support column (7), the side wall of which is fixedly connected to the side wall of the base (1), a connecting column (8) is slidably connected inside the support column (7), a first spring (9) is provided inside the support column (7), a fixing plate (10) is fixedly connected to the side wall of the connecting column (8), a rubber pad (11) is fixedly connected to the side wall of the fixing plate (10), a second spring (12) is sleeved on the side wall of the connecting column (8), and a damper (20) is fixedly installed between the base (1) and the fixing plate (10).

2. The press for manufacturing automotive anti-collision beams according to claim 1, characterized in that: The fixing component includes an upper mold (13), which is slidably connected to the side wall of the connecting frame (5), and a sliding groove plate (14) is fixedly connected inside the connecting frame (5).

3. The press for manufacturing automotive anti-collision beams according to claim 2, characterized in that: The slide plate (14) has a slider (15) slidably connected to its side wall, and the slider (15) has a rack (16) fixedly connected to its side wall.

4. A press for manufacturing automotive anti-collision beams according to claim 3, characterized in that: The connecting frame (5) is rotatably connected to a gear (17), and the rack (16) meshes with the gear (17).

5. A press for manufacturing automotive anti-collision beams according to claim 4, characterized in that: The connecting frame (5) is equipped with a motor (18), and the output end of the motor (18) is connected to the gear (17).

6. A press for manufacturing automotive anti-collision beams according to claim 3, characterized in that: The slider (15) is fixedly connected to a card plate (19) on its side wall. The card plate (19) is slidably connected inside the connecting frame (5) and inside the upper mold (13).

7. A press for manufacturing automotive anti-collision beams according to claim 1, characterized in that: One end of the first spring (9) is fixedly connected to the side wall of the connecting column (8), and the other end of the first spring (9) is fixedly connected to the inside of the support column (7).

8. A press for manufacturing automotive anti-collision beams according to claim 1, characterized in that: One end of the second spring (12) is fixedly connected to the side wall of the support column (7), and the other end of the second spring (12) is fixedly connected to the side wall of the fixing plate (10).

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