Thermal forming die for outer plate of A column of automobile

Abstract

The utility model provides an automobile A column outer plate thermal forming die which comprises a working table and a die body fixedly installed on the top of the working table. The utility model relates to the technical field of automobile parts. By arranging the vibration mechanism, the motor is started to drive the cam to rotate while raw materials are injected into the mold, and when the protruding end of the cam makes contact with the slope part of the extrusion block, the extrusion block and the linkage block can be driven to move towards the side away from the mold; the linkage block can drive the linkage rod, the knocking block and the knocking rod to move along the guide rod and the guide hole, meanwhile, the knocking block can extrude the knocking spring to enable the knocking spring to be in a compressed state, and when the protruding end of the cam rotates to be not in contact with the extrusion block, elastic force generated by the knocking spring can push the knocking block and the knocking rod to reset suddenly to knock the surface of the mold. The mold is sequentially, circularly and discontinuously knocked to generate slight vibration, so that the flowability of raw materials is improved, a forming cavity can be fully filled with the raw materials, and bubbles are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts, concretely to an automobile A column outer plate hot forming die. BACKGROUND

[0002] A column refers to the connecting column connecting the roof and the front compartment at the left front and right front of the automobile. The A column outer plate is a component for improving the stability of the A column.

[0003] The stamping forming die for the upper section of the inner support plate of the automobile A column reinforcing plate provided in the publication No. "CN221231401U" comprises an upper die plate, a lower die plate, a stamping assembly and a positioning assembly, the upper die plate is arranged on the top of the lower die plate, the material is arranged between the upper die plate and the lower die plate, the stamping assembly comprises a punching punch and a trimming punch, the punching punch and the trimming punch are fixedly connected to the upper die plate, the lower die plate is provided with a punch hole penetrating in the vertical direction, the lower die plate is provided with a height difference along the outer periphery of the trimming punch, when the upper die plate moves in the vertical direction towards the lower die plate, the punching punch is arranged in the punch hole in the vertical direction and is slidably connected to the punch hole, the trimming punch moves in the vertical direction and trims the material, and the positioning assembly is used for positioning the material during stamping. The application has the effects of reducing the trimming burrs of the reinforcing plate and reducing the risk of scratches during the assembly of the reinforcing plate.

[0004] However, the above-mentioned device still has the following problems in the implementation process:

[0005] The hot forming die is used for processing the A column outer plate during processing, in the processing process, the raw material is melted and injected into the forming cavity in the lower die, and the product can be formed after cooling, but the raw material completely relies on the flow of the raw material to fill the forming cavity during the injection into the forming cavity, and the product after forming is prone to bubbles, thereby reducing the forming effect of the die. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing an automobile A column outer plate hot forming die to solve the problems in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0008] An automobile A column outer plate hot forming die, comprising a workbench and a die, the die is fixedly installed on the top of the workbench, the top of the workbench is fixedly connected with an extension box, the inside of the extension box is provided with a first piston plate, the top of the first piston plate is fixedly connected with a first push rod, the top of the first push rod is fixedly connected with a supporting block, one side of the supporting block is provided with a vibration mechanism.

[0009] The vibrating mechanism comprises a motor fixedly connected to one side of a supporting block, an output end of the motor is fixedly connected with a cam, a top of the cam is provided with a linkage block, one side of the linkage block is fixedly connected with a pressing block and a linkage rod, one end of the linkage rod penetrates to one side of the supporting block and is fixedly connected with a knocking block, one side of the knocking block is fixedly connected with a plurality of knocking rods, the other side of the knocking block is fixedly connected with a knocking spring, one side of the knocking spring is fixedly connected with one side of the supporting block, and one side of the supporting block is provided with two gas collecting mechanisms.

[0010] Preferably, the gas collecting mechanism comprises a gas collecting box fixedly connected to one side of the supporting block, a top of the gas collecting box is fixedly communicated with an air inlet pipe through a first one-way valve, one side of the gas collecting box is fixedly communicated with an air outlet pipe, one end of the air outlet pipe is fixedly communicated with one side of the stretching box, the inside of the gas collecting box is provided with a second piston plate, one side of the second piston plate is fixedly connected with a second pushing rod, one end of the second pushing rod penetrates to one side of the supporting block and is fixedly connected with one side of the knocking block, and one side of the gas collecting box is provided with a pressure relief mechanism.

[0011] Preferably, the pressure relief mechanism comprises a pressure relief pipe fixedly communicated with one side of the stretching box, an electromagnetic valve is fixedly installed on the surface of the pressure relief pipe, a pressure sensor is arranged in the inside of the stretching box, a controller is fixedly installed on one side of the workbench, and the controller is signal connected with the electromagnetic valve and the pressure sensor.

[0012] Preferably, the top of the first piston plate is fixedly connected with two reset springs, and the top of the reset spring is fixedly connected with the inner wall of the stretching box.

[0013] Preferably, the two sides of the pressing block are in the form of slope.

[0014] Preferably, one side of the knocking block is fixedly connected with two guide rods, and one side of the supporting block is provided with guide holes matched with the guide rods.

[0015] Compared with the prior art, the vibrating mechanism has the advantages that:

[0016] 1. The utility model discloses a vibration mechanism can be set up, can be injected into the raw material in the mould at the same time, through starting motor, drive cam rotates, when cam convex end and extruding block slope part contact, then will drive extruding block and linkage block to the side away from the mould removal, linkage block then will drive linkage link, knock block and knock link along the guide rod and guide hole removal, and knock block will extrude knock spring simultaneously, and knock spring is in compression state, when cam convex end rotates to not with extruding block contact, the elastic force of knock spring will push knock block and knock link and suddenly reset, knock in the mould surface, in turn circulation, intermittent knock mould produces slight vibration, improves raw material fluidity, makes it can be filled full of forming cavity, reduces bubble generation.

[0017] 2. The utility model discloses a gas collection mechanism can be set up, can be reciprocatingly moved with knock block, when knock block drives second push link and second piston plate to move left, will compress the gas in gas collection tank, makes gas enter the inside of stretch tank through exhaust pipe, when knock block drives second push link and second piston plate to move right, will drive, at this time, the gas in gas collection tank is negative pressure, and gas will enter the inside of gas collection tank from air inlet pipe, and in turn circulation injects gas into stretch tank, under the push of air pressure, first piston plate will move slowly upwards, and drive first push link support block and vibration mechanism and other structures to move upwards, change the position of vibration mechanism knock and produce vibration, further improve the fluidity of raw material, avoid bubble generation.

[0018] 3. The utility model discloses a pressure relief mechanism can be set up, can when the air pressure in stretch tank reaches certain value, pressure sensor will transmit signal in controller, and the PLC module in controller will start electromagnetic valve, open pressure relief pipe, and the gas in stretch tank is discharged, and at the same time, the elastic force of reset spring will drive first piston plate and other structures to move downwards, thereby reach the relief of stretch tank internal pressure, avoid the situation of structure jam. ACCOUNT OF DRAWINGS

[0019] Figure 1 It is the main body structure schematic diagram of the utility model;

[0020] Figure 2 It is the three-dimensional view of vibration mechanism and gas collection mechanism of the utility model;

[0021] Figure 3 It is the sectional view schematic diagram of partial structure of the utility model;

[0022] Figure 4 It is the utility model Figure 3 It is the partial close -up of A place in the utility model;

[0023] Figure 5 It is the three-dimensional view of support block of the utility model;

[0024] Figure 6The utility model discloses a vibration mechanism's side view perspective drawing.

[0025] In the figure: 1, workbench;2, mould;3, stretch box;4, first piston plate;5, first push rod;6, support block;7, motor;8, cam;9, linkage block;10, extrusion block;11, linkage rod;12, knock block;13, knock rod;14, knock spring;15, gas collecting box;16, air inlet pipe;17, exhaust pipe;18, second piston plate;19, second push rod;20, pressure relief pipe;21, electromagnetic valve;22, pressure sensor;23, controller;24, reset spring;25, guide rod;26, guide hole. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the utility model.

[0027] Please refer to Figures 1-6 The utility model provides a technical scheme:

[0028] Embodiment one:

[0029] A kind of automobile A column outer plate thermoforming die, including workbench 1 and mould 2, mould 2 is fixedly installed on the top of workbench 1, the top of workbench 1 is fixedly connected with stretch box 3, the inside of stretch box 3 is provided with first piston plate 4, the top of first piston plate 4 is fixedly connected with first push rod 5, the top of first push rod 5 is fixedly connected with support block 6, and vibration mechanism is arranged on the side of support block 6;

[0030] Vibration mechanism includes motor 7 fixedly connected on the side of support block 6, the output end of motor 7 is fixedly connected with cam 8, the top of cam 8 is provided with linkage block 9, one side of linkage block 9 is fixedly connected with extrusion block 10 and linkage rod 11, one end of linkage rod 11 penetrates to the side of support block 6, and is fixedly connected with knock block 12, one side of knock block 12 is fixedly connected with several knock rods 13, the other side of knock block 12 is fixedly connected with knock spring 14, one side of knock spring 14 is fixedly connected with the side of support block 6, and the side of support block 6 is provided with two gas collecting mechanisms.

[0031] In the example, considering that the raw material completely relies on the flow of raw material to fill the forming cavity during injection into the forming cavity, the product is prone to bubbles after forming, thereby reducing the forming effect of mould 2, so that vibration mechanism is arranged, the raw material is injected into mould 2 at the same time, 2、 Figure 3And Figure 6 When the protruding end of the cam 8 is in contact with the inclined part of the extrusion block 10, the extrusion block 10 and the linkage block 9 are driven to move away from the mold 2, and the linkage block 9 drives the linkage rod 11, the knocking block 12 and the knocking rod 13 to move along the guide rod 25 and the guide hole 26, and the knocking block 12 extrudes the knocking spring 14 to make the knocking spring 14 in a compressed state. When the protruding end of the cam 8 is not in contact with the extrusion block 10, the elastic force of the knocking spring 14 pushes the knocking block 12 and the knocking rod 13 to reset suddenly and knock on the surface of the mold 2, and the process is repeated to produce intermittent knocking on the mold 2 to produce slight vibration, improve the flowability of the raw material, and make the raw material fill the forming cavity fully and reduce the generation of bubbles.

[0032] The two sides of the extrusion block 10 are inclined.

[0033] In this example, when the protruding end of the cam 8 is in contact with the inclined part of the extrusion block 10, the extrusion block 10 and the linkage block 9 are driven to move away from the mold 2, and the linkage block 9 drives the linkage rod 11, the knocking block 12 and the knocking rod 13 to move along the guide rod 25 and the guide hole 26, and the knocking block 12 extrudes the knocking spring 14 to make the knocking spring 14 in a compressed state. When the protruding end of the cam 8 is not in contact with the extrusion block 10, the elastic force of the knocking spring 14 pushes the knocking block 12 and the knocking rod 13 to reset suddenly and knock on the surface of the mold 2, and the process is repeated to produce intermittent knocking on the mold 2 to produce slight vibration, improve the flowability of the raw material, and make the raw material fill the forming cavity fully and reduce the generation of bubbles.

[0034] The knocking block 12 is fixedly connected with two guide rods 25 on one side, and the support block 6 is provided with guide holes 26 matched with the guide rods 25.

[0035] In this example, the guide rod 25 and the guide hole 26 are arranged to limit the movement of the knocking block 12 and the knocking rod 13 along the guide rod 25 and the guide hole 26 when the protruding end of the cam 8 is in contact with the inclined part of the extrusion block 10, and to improve the stability of the movement.

[0036] Example two:

[0037] The gas collecting mechanism includes a gas collecting box 15 fixedly connected to one side of the support block 6, a gas inlet pipe 16 fixedly communicated with the top of the gas collecting box 15 through a first one-way valve, an exhaust pipe 17 fixedly communicated with one side of the gas collecting box 15, one end of the exhaust pipe 17 fixedly communicated with one side of the stretching box 3, a second piston plate 18 arranged in the gas collecting box 15, a second push rod 19 fixedly connected to one side of the second piston plate 18, one end of the second push rod 19 penetrating to one side of the support block 6 and fixedly connected to one side of the knocking block 12, and a pressure relief mechanism arranged on one side of the gas collecting box 15.

[0038] In this example, the gas collecting mechanism is arranged to move the knocking block 12 reciprocally, and the pressure relief mechanism is arranged to Figure 3 And Figure 4When the knocking block 12 drives the second push rod 19 and the second piston plate 18 to move to the left, the gas in the gas collecting box 15 is compressed, so that the gas enters the inside of the stretching box 3 through the exhaust pipe 17; when the knocking block 12 drives the second push rod 19 and the second piston plate 18 to move to the right, the first piston plate 4 is driven to move upward, and the first push rod 5, the support block 6 and the vibration mechanism are driven to move upward, so that the position of the vibration mechanism for knocking and generating vibration is changed, and the liquidity of the raw material is further improved, so that air bubbles are avoided.

[0039] It should be noted that the first one-way valve is a valve that can only enter the gas collecting box 15, the second one-way valve is a valve that can only exhaust gas from the gas collecting box 15, and the exhaust pipe 17 is a rubber hose.

[0040] Example three:

[0041] The pressure relief mechanism includes a pressure relief pipe 20 fixedly connected to one side of the stretching box 3, and an electromagnetic valve 21 fixedly installed on the surface of the pressure relief pipe 20. The inside of the stretching box 3 is provided with a pressure sensor 22, and the workbench 1 is provided with a controller 23 fixedly installed on one side. The controller 23 is signal connected with the electromagnetic valve 21 and the pressure sensor 22.

[0042] In this example, when the gas pressure in the stretching box 3 reaches a certain value, the pressure sensor 22 transmits a signal to the controller 23, and the PLC module built in the controller 23 starts the electromagnetic valve 21 to open the pressure relief pipe 20 to discharge the gas in the stretching box 3. At the same time, the elastic force of the reset spring 24 drives the first piston plate 4 and other structures to move downward, so as to relieve the pressure in the stretching box 3 and avoid the structure from being stuck.

[0043] The top of the first piston plate 4 is fixedly connected with two reset springs 24, and the top of the reset spring 24 is fixedly connected with the inner wall of the stretching box 3.

[0044] In this example, when the pressure relief pipe 20 is opened, the elastic force of the reset spring 24 drives the first piston plate 4 and other structures to move downward, so as to reset the function.

[0045] Working principle: at the same time when the raw material is injected into the mold 2, the reference 2, Figure 3 and Figure 6By starting the motor 7, the cam 8 is driven to rotate. When the protruding end of the cam 8 contacts the inclined part of the extrusion block 10, it will drive the extrusion block 10 and the linkage block 9 to move away from the mold 2. The linkage block 9 will drive the linkage rod 11, the striking block 12 and the striking rod 13 to move along the guide rod 25 and the guide hole 26. At the same time, the striking block 12 will squeeze the striking spring 14, so that the striking spring 14 is in a compressed state. When the protruding end of the cam 8 rotates to no longer contact the extrusion block 10, the elastic force generated by the striking spring 14 will push the striking block 12 and the striking rod 13 to suddenly return to their original position and strike the surface of the mold 2. This cycle repeats intermittently, striking the mold 2 to produce slight vibration, improving the fluidity of the raw material, so that it can fully fill the molding cavity and reduce the generation of air bubbles.

[0046] While tapping block 12 and moving it back and forth, refer to Figure 3 and Figure 4 When the striking block 12 moves the second push rod 19 and the second piston plate 18 to the left, it compresses the gas in the gas collection box 15, allowing the gas to enter the extension box 3 through the exhaust pipe 17. When the striking block 12 moves the second push rod 19 and the second piston plate 18 to the right, it causes the gas collection box 15 to be under negative pressure, and the gas will enter the gas collection box 15 through the air inlet pipe 16. The gas is injected into the extension box 3 in a cyclical manner. Under the push of the air pressure, the first piston plate 4 will slowly move upward, and at the same time, it will move the first push rod 5, the support block 6, and the vibration mechanism upward, changing the position of the vibration generated by the vibration mechanism, further improving the fluidity of the raw material and avoiding the generation of bubbles.

[0047] When the air pressure inside the extension box 3 reaches a certain value, the pressure sensor 22 will transmit a signal to the controller 23. The built-in PLC module of the controller 23 will activate the solenoid valve 21 and open the pressure relief pipe 20 to discharge the gas in the extension box 3. At the same time, the elastic force generated by the reset spring 24 will drive the first piston plate 4 and other structures to move downward, thereby relieving the internal pressure of the extension box 3 and preventing the structure from jamming.

[0048] It should be noted that the motor 7, solenoid valve 21, pressure sensor 22 and controller 23 are existing devices or equipment, or devices or equipment that can be implemented by existing technology. Furthermore, the specific composition and principle of the power supply of the motor 7, solenoid valve 21, pressure sensor 22 and controller 23 are clear to those skilled in the art, and therefore will not be described in detail.

[0049] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automobile A-pillar outer panel hot forming die, comprising a workbench (1) and a die (2), the die (2) being fixedly installed on the top of the workbench (1), characterized in that: The top of the workbench (1) is fixedly connected with an extension box (3), the inside of the extension box (3) is provided with a first piston plate (4), the top of the first piston plate (4) is fixedly connected with a first push rod (5), the top of the first push rod (5) is fixedly connected with a support block (6), and the side of the support block (6) is provided with a vibration mechanism. The vibration mechanism comprises a motor (7) fixedly connected to the side of the support block (6), the output end of the motor (7) is fixedly connected with a cam (8), the top of the cam (8) is provided with a linkage block (9), the side of the linkage block (9) is fixedly connected with a pressing block (10) and a linkage rod (11), one end of the linkage rod (11) penetrates to the side of the support block (6) and is fixedly connected with a knocking block (12), the side of the knocking block (12) is fixedly connected with a plurality of knocking rods (13), the other side of the knocking block (12) is fixedly connected with a knocking spring (14), the side of the knocking spring (14) is fixedly connected with the side of the support block (6), and the side of the support block (6) is provided with two gas collecting mechanisms.

2. The hot forming die for an automobile A-pillar outer panel according to claim 1, characterized by: The gas collecting mechanism comprises a gas collecting box (15) fixedly connected to the side of the support block (6), the top of the gas collecting box (15) is fixedly communicated with an air inlet pipe (16) through a first one-way valve, the side of the gas collecting box (15) is fixedly communicated with an air outlet pipe (17), one end of the air outlet pipe (17) is fixedly communicated with the side of the extension box (3), the inside of the gas collecting box (15) is provided with a second piston plate (18), the side of the second piston plate (18) is fixedly connected with a second push rod (19), one end of the second push rod (19) penetrates to the side of the support block (6) and is fixedly connected with the side of the knocking block (12), and the side of the gas collecting box (15) is provided with a pressure relief mechanism.

3. The hot forming die for an automobile A-pillar outer panel according to claim 2, characterized by: The pressure relief mechanism comprises a pressure relief pipe (20) fixedly communicated with the side of the extension box (3), the surface of the pressure relief pipe (20) is fixedly installed with a solenoid valve (21), the inside of the extension box (3) is provided with a pressure sensor (22), and the side of the workbench (1) is fixedly installed with a controller (23); the controller (23) is signal connected with the solenoid valve (21) and the pressure sensor (22).

4. The hot forming die for an automobile A-pillar outer panel according to claim 3, characterized by: The top of the first piston plate (4) is fixedly connected with two reset springs (24), and the top of the reset spring (24) is fixedly connected with the inner wall of the extension box (3).

5. The hot stamping die for an automobile A-pillar outer panel according to claim 1, characterized by: The two sides of the pressing block (10) are in the form of inclined surfaces.

6. The automobile A-pillar outer panel hot-stamping die according to claim 1, characterized in that: The side of the knocking block (12) is fixedly connected with two guide rods (25), and the side of the support block (6) is provided with guide holes (26) matched with the guide rods (25). The side of the knocking block (12) is fixedly connected with two guide rods (25), and the side of the support block (6) is provided with guide holes (26) matched with the guide rods (25).

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