A press for automobile stampings

Abstract

The application discloses a kind of automobile stamping piece press, it is related to automobile parts processing technical field, including press frame, the upper end of the inside of press frame is fixedly installed with heavy hydraulic cylinder, the driving end of heavy hydraulic cylinder is fixedly connected with compression block, the other end of compression block is fixedly connected with movable mould, the bottom of press frame is fixedly connected with operation table, the center of operation table is fixedly installed with fixed mould.The heating constant temperature component in the application continuously maintains working condition, heats and insulates treatment to plate piece, makes the anisotropy index of plate piece stable promotion, heavy hydraulic cylinder drives compression block and movable mould synchronous action, and stamping processing is implemented to aluminum alloy plate piece.Due to the higher temperature of plate piece during stamping process, its anisotropy is in ideal state, effectively avoids that plate piece appears local tensile crack and other processing defects, significantly improves the yield of the press machining aluminum alloy plate piece.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of automobile part processing, in particular to an automobile stamping part press. BACKGROUND

[0002] The automobile stamping part press is a core forging and pressing equipment specially designed for the automobile manufacturing field, which makes metal plates in the mold plastically deform or separate by applying high-strength pressure, so as to process automobile body covering parts, structural parts and chassis parts and other stamping parts. It is powered by mechanical transmission or hydraulic transmission, combined with precise mold positioning and stroke control, can realize continuous and efficient automatic stamping operation, has stable pressure output, reliable safety protection and flexibility to adapt to different vehicle stamping part sizes and precision requirements, is the key equipment for realizing batch and high-precision forming of metal parts in automobile production, and directly affects the strength, appearance quality and production efficiency of the automobile body.

[0003] When the aluminum alloy plate to be stamped is sent into the interior of the press, compared with steel, the anisotropy index of aluminum alloy at room temperature is low, the crystal structure inside the material is weak in slip deformation ability when bearing external force, and it is difficult to adapt to the complex mold cavity profile through uniform deformation. Especially when the aluminum alloy plate is subjected to stamping forming operation of a complex curved surface, different regions of the plate need to bear different tensile stress and compressive stress: the local area with sharp change of curved surface curvature will become a stress concentration point, when the actual stress of the area exceeds the tensile strength limit of aluminum alloy at room temperature, the material is prone to micro-cracks, and the cracks will quickly expand under the continuous action of stamping load, finally leading to obvious local tensile cracking defects of the plate, not only causing the workpiece to be scrapped, but also possibly scratching the mold cavity due to the metal debris produced by the fracture, affecting the subsequent production precision and efficiency. SUMMARY

[0004] The purpose of the application is to provide an automobile stamping part press to solve the problem that the anisotropy of aluminum alloy at room temperature is low, and local tensile cracking easily occurs when stamping a complex curved surface on the surface of an aluminum alloy plate.

[0005] In order to achieve the above object, the present application provides the following technical scheme: A stamping press for automobile stamping parts, comprising a press frame, a heavy hydraulic cylinder is fixedly installed at the upper end inside the press frame, a pressing block is fixedly connected to the driving end of the heavy hydraulic cylinder, a moving die is fixedly connected to the other end of the pressing block, an operating table is fixedly connected to the bottom end of the press frame, a stationary die is fixedly installed at the center of the operating table, conveying rails are arranged on both sides of the operating table, aluminum alloy plate parts to be stamped are conveyed inside the conveying rails, a heating constant temperature assembly is movably connected to one side of the aluminum alloy plate parts, the heating constant temperature assembly heats and keeps the temperature of the aluminum alloy plate parts through heat transfer, a transfer assembly is fixedly installed inside the press frame, and the transfer assembly transfers the heating constant temperature assembly from above the aluminum alloy plate parts to the conveying surface of another conveying rail before stamping.

[0006] The heating constant temperature assembly comprises a heating plate and four sets of clamping assemblies, the four sets of clamping assemblies are fixedly installed at the four corners of the heating plate respectively, the clamping assembly comprises an adapter plate, an electric control cylinder and a positioning clamp plate, one side of the adapter plate is fixedly connected with one side of the electric control cylinder, the driving end of the electric control cylinder is fixedly connected with one end of the positioning clamp plate, and one side of the positioning clamp plate is provided with an upward sliding groove.

[0007] The top surface of the operating table is fixedly connected with four inclined sliding blocks in a central symmetrical manner, one end of the inclined sliding block is provided with an inclined surface, when the electric control cylinder drives the positioning clamp plate to move away from the heating plate, one end of the inclined sliding block will slide into the inside of the upward sliding groove and tilt the positioning clamp plate along the inclined direction of the inclined surface to finally lift the height of the heating constant temperature assembly.

[0008] Preferably, two installation grooves are symmetrically provided in the inside of the positioning clamp plate, and rollers are rotatably connected in the two installation grooves.

[0009] Preferably, the transfer assembly comprises a support frame, an electric control sliding table and a transfer head, the electric control sliding table is fixedly installed at one end of the support frame, the driving end of the electric control sliding table is fixedly connected with one end of the transfer head, one end of the transfer head is movably connected with the fixed end of the heating plate, and the other end of the support frame is fixedly connected to the inside of the press frame.

[0010] Preferably, the transfer head comprises an adapter frame, an adapter rod and an electromagnet rod, one end of the adapter frame is fixedly connected to the driving end of the electric control sliding table, the adapter rod is fixedly installed at the other end of the adapter frame, the other end of the adapter rod is fixedly connected with one end of the electromagnet rod, and the power supply wire of the electromagnet rod movably penetrates through the inside of the adapter rod.

[0011] Preferably, the heating plate comprises a plate body, a heating assembly and a mobile power supply battery, the heating end of the heating assembly is arranged in the interior of the plate body, and the output end of the mobile power supply battery is electrically connected with the input end of the heating assembly.

[0012] Preferably, the heating assembly comprises a power supply plate and a plurality of heating resistance rods, and the power input ends of the plurality of heating resistance rods are connected with the power output end of the power supply plate.

[0013] Preferably, a rotary adapter is fixedly installed at the center of the plate body by means of a bolt, and a positioning circular groove is arranged in the interior of the rotary adapter.

[0014] Preferably, a rotary adapter is fixedly installed at the center of the plate body by means of a bolt, and a positioning circular groove is arranged in the interior of the rotary adapter.

[0015] Preferably, the two sides of the press frame are fixedly connected with electric control push rods respectively, the drive rods of the electric control push rods are fixedly connected with isolation nets, and the isolation nets are arranged above the rotary adapter between the operation table and the conveying track.

[0016] Preferably, the two sides of the isolation net are respectively provided with guide rods, the two ends of the guide rods are fixedly connected to the two sides of the press frame, guide wheels are rotatably connected to the two end corners of the isolation net, and the outer sides of the guide wheels are rollingly attached to the outer sides of the guide rods.

[0017] Compared with the prior art, the present application has the following advantages:

[0018] 1. In the present application, the heating constant temperature assembly is kept in a working state to heat and keep the temperature of the plate, so that the anisotropy index of the plate is stably improved, the heavy hydraulic cylinder drives the pressing block to move synchronously with the moving die, and the aluminum alloy plate is subjected to stamping processing. Since the plate maintains a high temperature during stamping, its anisotropy is in an ideal state, which effectively avoids the occurrence of local cracking and other processing defects of the plate, and significantly improves the yield rate of the aluminum alloy plate processed by the press.

[0019] 2. In the present application, the driving positioning clamping plate moves linearly away from the heating plate, and the positioning clamping plate is smoothly lifted along the inclined direction by means of the guiding effect of the inclined surface of the inclined sliding block, so that the entire heating constant temperature assembly is lifted to a high position, and the posture adjustment after the clamping is released is completed. When the transfer assembly performs the transfer operation, it does not need to additionally add a lifting mechanism to adjust the height of the heating constant temperature assembly, but can directly perform the horizontal transfer operation, which greatly shortens the transfer time of the heating constant temperature assembly from above the operation table to the target conveying track conveying plane, saves the key time cost for the subsequent stamping process, and directly improves the overall stamping processing efficiency of the aluminum alloy plate.

[0020] 3、In the application, the positioning and connection with the positioning circular groove are realized by magnetic force, and the positioning and adsorption of the heating constant temperature assembly are realized. Then, the electric control sliding table drives the transfer head to reset along the original path, and synchronously drives the heating constant temperature assembly to move to the conveying plane of another conveying track, and the whole transfer operation of the heating constant temperature assembly is completed. The transfer mode can ensure that the heating constant temperature assembly completely avoids the stamping operation area of the operation table, and does not interfere with the synchronous stamping action of the heavy hydraulic cylinder driving pressing block and the movable die; meanwhile, the magnetic adsorption is used for positioning and connection, the complex steps of traditional mechanical clamping and unlocking are omitted, the transfer process is further simplified, and the efficiency and stability of the transfer operation are effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a three-dimensional structure schematic diagram of the automobile stamping part press of the application;

[0022] Figure 2 It is a three-dimensional structure schematic diagram of the automobile stamping part press of the application;

[0023] Figure 3 It is a three-dimensional structure schematic diagram of the automobile stamping part press of the application;

[0024] Figure 4 It is a three-dimensional structure schematic diagram of the automobile stamping part press of the application;

[0025] Figure 5 It is a three-dimensional structure schematic diagram of the automobile stamping part press of the application;

[0026] Figure 6 It is a three-dimensional structure schematic diagram of the automobile stamping part press of the application;

[0027] Figure 7 It is a three-dimensional structure schematic diagram of the automobile stamping part press of the application;

[0028] Figure 8 It is a three-dimensional structure schematic diagram of the automobile stamping part press of the application;

[0029] Figure 9 It is a three-dimensional structure schematic diagram of the automobile stamping part press of the application;

[0030] In the figure: 1, the frame of the press; 11, heavy hydraulic cylinder; 12, pressing block; 13, electric control push rod; 14, isolation net; 15, guide rod; 16, guide wheel; 2, operating table; 21, fixed mold; 22, inclined sliding block; 221, inclined surface; 3, conveying track; 4, heating constant temperature assembly; 41, heating plate; 411, plate body; 412, heating assembly; 413, mobile power supply battery; 414, power supply plate; 415, heating resistance rod; 416, adapter; 417, positioning circular groove; 42, clamping assembly; 421, adapter plate; 422, electric control cylinder; 423, positioning clamping plate; 424, rising sliding groove; 425, mounting groove; 426, roller; 5, transfer assembly; 51, support frame; 52, electric control sliding table; 53, transfer head; 531, adapter frame; 532, adapter rod; 533, electromagnet rod. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0032] Embodiment one: refer to Figures 1-6 As shown: a kind of automobile stamping press, including the frame of the press 1, the upper end fixed mounting of the frame of the press 1 inside heavy hydraulic cylinder 11, the drive end fixed connection of heavy hydraulic cylinder 11 has pressing block 12, the other end fixed connection of pressing block 12 has movable mold, the bottom end fixed connection of the frame of the press 1 has operating table 2, the center of operating table 2 is fixedly installed with fixed mold 21, the two sides of operating table 2 are provided with conveying track 3, conveying track 3 is conveyed with the aluminum alloy sheet to be stamped inside, the side of aluminum alloy sheet is movably connected with heating constant temperature assembly 4, heating constant temperature assembly 4 is heated constant temperature to aluminum alloy sheet by the mode of heat transfer, the inside fixed mounting of the frame of the press 1 has transfer assembly 5, transfer assembly 5 is transferred from the top of aluminum alloy sheet to the conveying face of another conveying track 3 before stamping with heating constant temperature assembly 4;

[0033] Heating constant temperature assembly 4 includes heating plate 41 and four groups of clamping assemblies 42, four groups of clamping assemblies 42 are fixedly installed at the four corners of heating plate 41, clamping assembly 42 includes adapter plate 421, electric control cylinder 422 and positioning clamping plate 423, one side of adapter plate 421 is fixedly connected with one side of electric control cylinder 422, the drive end of electric control cylinder 422 is fixedly connected with one end of positioning clamping plate 423, and one side of positioning clamping plate 423 is provided with rising sliding groove 424;

[0034] The top surface of the operation table 2 is fixedly connected with four inclined sliding blocks 22 in a central symmetric manner, one end of the inclined sliding block 22 is provided with an inclined surface 221, when the electric control cylinder 422 drives the positioning clamp plate 423 to move away from the heating plate 41, one end of the inclined sliding block 22 will slide into the inside of the rising sliding groove 424 and incline the positioning clamp plate 423 along the inclined direction of the inclined surface 221, finally the height of the heating constant temperature assembly 4 is raised, the inside of the positioning clamp plate 423 is symmetrically provided with two mounting grooves 425, the inside of the two mounting grooves 425 is rotatably connected with a roller 426, the two sides of the press frame 1 are respectively fixedly connected with an electric control push rod 13, the driving rod of the electric control push rod 13 is fixedly connected with a isolation net 14, the isolation net 14 is arranged above the transition position of the operation table 2 and the conveying track 3, the two sides of the isolation net 14 are respectively provided with a guide rod 15, the two ends of the guide rod 15 are respectively fixedly connected to the two sides of the press frame 1, the two end corners of the isolation net 14 are rotatably connected with a guide wheel 16, the outside of the guide wheel 16 is rolled and matched with the outside of the guide rod 15.

[0035] In the embodiment, the heating constant temperature assembly 4 is arranged above the aluminum alloy plate to be stamped, and the assembly is used to position and clamp the plate. After positioning and clamping, the plate and the heating constant temperature assembly 4 are integrally transported to one side of the conveying track 3, so as to prepare for the subsequent conveying process.

[0036] When the aluminum alloy plate moves to the transition position of the conveying track 3 and the operation table 2, the electric control push rod 13 is started and drives the isolation net 14 to rise. During the lifting of the isolation net 14, the guide wheel 16 rolls along the surface of the guide rod 15, and the movement track of the isolation net 14 is strictly restricted through the guide structure, so that the isolation net 14 always maintains the vertical lifting state, avoids deviation, and ensures the operation safety and conveying accuracy. Then, the conveying track 3 continues to drive the aluminum alloy plate to move, until the plate accurately reaches the center area of the operation table 2, and at this time, the plate is located directly above the fixed die 21.

[0037] During the whole conveying process of the aluminum alloy plate, the heating constant temperature assembly 4 continuously maintains the working state, and heats and keeps the temperature of the plate, so that the anisotropy index of the plate is stably improved. Before entering the stamping process, the heating constant temperature assembly 4 releases the positioning and clamping effect on the plate, and at the same time, the transfer assembly 5 is started to transfer the heating constant temperature assembly 4 from above the operation table 2 to the conveying plane of another conveying track 3. After that, the heavy hydraulic cylinder 11 drives the pressing block 12 to move synchronously with the moving die, and the aluminum alloy plate is stamped. Since the plate maintains a high temperature during stamping, the anisotropy of the plate is in an ideal state, which effectively avoids the local cracking and other processing defects of the plate, and significantly improves the yield rate of the press machine for processing the aluminum alloy plate.

[0038] Embodiment two: Figures 1-6As shown, the automobile stamping press in the application comprises a press frame 1, a heavy hydraulic cylinder 11 fixedly installed at the upper end inside the press frame 1, a pressing block 12 fixedly connected to the driving end of the heavy hydraulic cylinder 11, a moving die fixedly connected to the other end of the pressing block 12, an operation table 2 fixedly connected to the bottom end of the press frame 1, a stationary die 21 fixedly installed at the center of the operation table 2, conveying tracks 3 provided on both sides of the operation table 2, aluminum alloy plate pieces to be stamped conveyed inside the conveying tracks 3, a heating constant temperature assembly 4 movably clamped to one side of the aluminum alloy plate pieces, the heating constant temperature assembly 4 heating and keeping the temperature of the aluminum alloy plate pieces by heat transfer, and a transfer assembly 5 fixedly installed at the inner side of the press frame 1, the transfer assembly 5 transferring the heating constant temperature assembly 4 from above the aluminum alloy plate pieces to the conveying surface of another conveying track 3 before stamping;

[0039] The heating constant temperature assembly 4 comprises a heating plate 41 and four sets of clamping assemblies 42, the four sets of clamping assemblies 42 being respectively fixedly installed at the four corners of the heating plate 41, the clamping assembly 42 comprising an adapter plate 421, an electric control cylinder 422 and a positioning clamp plate 423, one side of the adapter plate 421 being fixedly connected to one side of the electric control cylinder 422, the driving end of the electric control cylinder 422 being fixedly connected to one end of the positioning clamp plate 423, and one side of the positioning clamp plate 423 being provided with an upward sliding groove 424;

[0040] The top surface of the operation table 2 is fixedly connected to four inclined sliding blocks 22 in a central symmetrical manner, one end of the inclined sliding block 22 being provided with an inclined surface 221, when the electric control cylinder 422 drives the positioning clamp plate 423 to move away from the heating plate 41, one end of the inclined sliding block 22 will slide into the inside of the upward sliding groove 424 and tilt the positioning clamp plate 423 upward along the inclined direction of the inclined surface 221, so as to finally raise the height of the heating constant temperature assembly 4.

[0041] In this embodiment, when the heating constant temperature assembly 4 enters the clamping release stage, the internal clamping assembly 42 is started to drive the positioning clamp plate 423 to make linear motion away from the heating plate 41. In this process, one end of the inclined sliding block 22 on the operation table 2 precisely slides into the inside of the upward sliding groove 424 of the positioning clamp plate 423, and the positioning clamp plate 423 is smoothly lifted along the inclined direction by means of the guiding action of the inclined surface 221 of the inclined sliding block 22, thereby driving the entire heating constant temperature assembly 4 to realize height lifting and complete the posture adjustment after clamping release.

[0042] Based on the completed height lifting of the heating constant temperature assembly 4, the transfer assembly 5 does not need to additionally add lifting mechanism to adjust the height of the heating constant temperature assembly 4 when performing the transfer operation, and can directly implement the horizontal transfer operation of the heating constant temperature assembly 4, thereby greatly shortening the transfer time of the heating constant temperature assembly 4 from above the operation table 2 to the conveying plane of the target conveying track 3, saving the key time cost for the subsequent stamping process, and directly improving the overall stamping processing efficiency of the aluminum alloy plate.

[0043] From the perspective of production process continuity, the design avoids the complex action process of lifting-horizontal movement-lowering during the transfer process, reduces the equipment maintenance cost and production investment. At the same time, the simplified transfer operation makes the transfer posture of the heating constant temperature assembly 4 more stable, effectively avoids the risk of component deviation and collision caused by multi-action switching, and guarantees the safety and stability of the equipment operation. In addition, the shortening of the transfer time reduces the idle interval of the operation table 2, which can enter the stamping preparation stage of the next plate faster, helping to realize large-scale and efficient stamping production of aluminum alloy plates.

[0044] Embodiment three: according to Figures 1-9 As shown in the figure, the automobile stamping part press in the application comprises a press frame 1, a heavy hydraulic cylinder 11 fixedly installed at the upper end inside the press frame 1, a pressing block 12 fixedly connected to the driving end of the heavy hydraulic cylinder 11, a moving die fixedly connected to the other end of the pressing block 12, an operation table 2 fixedly connected to the bottom end of the press frame 1, a stationary die 21 fixedly installed at the center of the operation table 2, conveying tracks 3 provided on both sides of the operation table 2, aluminum alloy plates to be stamped conveyed inside the conveying tracks 3, a heating constant temperature assembly 4 movably connected to one side of the aluminum alloy plates, the heating constant temperature assembly 4 heating and keeping the temperature of the aluminum alloy plates by heat transfer, and a transfer assembly 5 fixedly installed on the inner side of the press frame 1, the transfer assembly 5 transferring the heating constant temperature assembly 4 from above the aluminum alloy plates to the conveying plane of another conveying track 3 before stamping;

[0045] The heating constant temperature assembly 4 comprises a heating plate 41 and four sets of clamping assemblies 42, the four sets of clamping assemblies 42 are respectively fixedly installed at the four corners of the heating plate 41, the clamping assembly 42 comprises an adapter plate 421, an electric control cylinder 422 and a positioning clamp plate 423, one side of the adapter plate 421 is fixedly connected with one side of the electric control cylinder 422, the driving end of the electric control cylinder 422 is fixedly connected with one end of the positioning clamp plate 423, and one side of the positioning clamp plate 423 is provided with an upward sliding groove 424;

[0046] The top surface of the operation table 2 is fixedly connected with four inclined sliding blocks 22 in a central symmetry mode, one end of the inclined sliding block 22 is provided with an inclined surface 221, when the electric control cylinder 422 drives the positioning clamping plate 423 to move away from the heating plate 41, one end of the inclined sliding block 22 will slide into the inside of the rising sliding groove 424 and incline the positioning clamping plate 423 along the inclined direction of the inclined surface 221, finally the height of the heating constant temperature assembly 4 is raised;

[0047] The transfer assembly 5 includes a support frame 51, an electric control sliding table 52 and a transfer head 53, the electric control sliding table 52 is fixedly installed at one end of the support frame 51, the driving end of the electric control sliding table 52 is fixedly connected with one end of the transfer head 53, one end of the transfer head 53 is clamped with the fixed end of the heating plate 41, the other end of the support frame 51 is fixedly connected to the inner side of the press frame 1, the transfer head 53 includes a transfer adapter 531, a transfer rod 532 and an electromagnet rod 533, one end of the transfer adapter 531 is fixedly connected with the driving end of the electric control sliding table 52, the transfer rod 532 is fixedly installed at the other end of the transfer rod 532, the other end of the transfer rod 532 is fixedly connected with one end of the electromagnet rod 533, the power supply wire of the electromagnet rod 533 is movably penetrated into the inside of the transfer rod 532, the heating plate 41 includes a plate body 411, a heating assembly 412 and a mobile energy supply battery 413, the heating end of the heating assembly 412 is arranged in the inside of the plate body 411, the output end of the mobile energy supply battery 413 is electrically connected with the input end of the heating assembly 412, the heating assembly 412 includes an energy supply plate 414 and a plurality of heating resistance rods 415, the electric energy input end of the plurality of heating resistance rods 415 is connected with the electric energy output end of the energy supply plate 414, the center of the plate body 411 is fixedly installed with an adapter 416 through bolts, the inside of the adapter 416 is provided with a positioning circular groove 417, one end of the electromagnet rod 533 is movably penetrated into the inside of the positioning circular groove 417, the adapter 416 is made of iron block, the electromagnet rod 533 is connected with the positioning circular groove 417 through magnetic force after generating magnetic force.

[0048] In this embodiment, when the transfer assembly 5 starts the transfer operation, first drive the transfer head 53 by the electric control sliding table 52 to make a precise linear motion in the direction towards the heating constant temperature assembly 4. During the motion, the electromagnet rod 533 inside the transfer head 53 moves synchronously and penetrates into the positioning circular groove 417 of the heating constant temperature assembly 4. When the electromagnet rod 533 moves to the preset specified position with the transfer head 53, the electromagnet rod 533 is powered and generates a magnetic force to form a stable connection with the positioning circular groove 417, realizing the positioning and adsorption of the heating constant temperature assembly 4. Then, the electric control sliding table 52 drives the transfer head 53 to reset along the original path, synchronously driving the heating constant temperature assembly 4 to move to the conveying plane of another conveying track 3, thus completing the whole transfer operation of the heating constant temperature assembly 4. This transfer mode can ensure that the heating constant temperature assembly 4 completely avoids the stamping operation area of the operation table 2 and does not interfere with the synchronous stamping action of the heavy hydraulic cylinder 11 driving the pressing block 12 and the moving die; at the same time, the positioning and connection by magnetic adsorption saves the complex steps of traditional mechanical clamping and unlocking, further simplifies the transfer process, and effectively improves the efficiency and stability of the transfer operation.

[0049] The heating function of the heating constant temperature assembly 4 is realized by the heating assembly 412. In the specific operation process, first, the mobile energy supply battery 413 stably supplies electric energy to the energy supply plate 414 to provide continuous power support for the heating system. After the energy supply plate 414 receives the electric energy, it is transmitted to the heating resistance rod 415 to start the heating resistance rod 415 and generate heat. The generated heat is uniformly conducted through the plate body 411 and finally transmitted to the inside of the aluminum alloy plate to be stamped, forming a complete heat transfer path from the heat source to the plate, thereby realizing precise heating and constant temperature insulation of the aluminum alloy plate and ensuring that the plate always maintains the temperature and anisotropic state required by the process before the subsequent stamping process.

[0050] The use method and working principle of the device: place the heating constant temperature assembly 4 above the aluminum alloy plate to be stamped, and realize the positioning and clamping of the plate by the assembly. After completing the positioning and clamping, transfer the plate and the heating constant temperature assembly 4 as a whole to one side of the conveying track 3 to prepare for the subsequent conveying process.

[0051] When the aluminum alloy plate moves to the transfer position of the operation table 2 along the conveying track 3, the electric control push rod 13 starts and drives the isolation net 14 to rise upwards. Then, the conveying track 3 continues to drive the aluminum alloy plate to move until the plate accurately reaches the center area of the operation table 2 and at this time the plate is in the position directly above the fixed die 21.

[0052] During the whole conveying process of the aluminum alloy plate, the heating and constant temperature assembly 4 is continuously kept in working state to heat and keep the temperature of the plate, so that the anisotropy index of the plate is stably improved. Before entering the stamping process, when the heating and constant temperature assembly 4 enters the clamping release stage, the internal clamping assembly 42 is started to drive the positioning clamping plate 423 to move linearly away from the heating plate 41. During this process, one end of the inclined slide block 22 on the operation table 2 is accurately slid into the rising slide groove 424 of the positioning clamping plate 423, and the positioning clamping plate 423 is smoothly lifted along the inclined direction by means of the guiding action of the inclined surface 221 of the inclined slide block 22, so as to drive the whole heating and constant temperature assembly 4 to realize height lifting and complete posture adjustment after clamping release.

[0053] When the transfer assembly 5 starts the transfer operation, the transfer head 53 is first driven by the electric control slide table 52 to move linearly in the direction towards the heating and constant temperature assembly 4. During the movement, the electromagnet rod 533 inside the transfer head 53 moves synchronously and penetrates into the positioning circular groove 417 of the heating and constant temperature assembly 4. When the electromagnet rod 533 moves to the preset specified position with the transfer head 53, the electromagnet rod 533 is electrified and generates magnetic force to form stable connection with the positioning circular groove 417 through the magnetic force, so as to realize positioning and adsorption of the heating and constant temperature assembly 4. Subsequently, the electric control slide table 52 drives the transfer head 53 to reset along the original path, synchronously drives the heating and constant temperature assembly 4 to move to the conveying plane of another conveying track 3, and thus completes the whole transfer operation of the heating and constant temperature assembly 4. After that, the heavy hydraulic cylinder 11 drives the pressing block 12 to move synchronously with the moving die to implement stamping processing of the aluminum alloy plate.

[0054] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A press for stamping automotive parts, comprising a press frame (1), wherein a heavy-duty hydraulic cylinder (11) is fixedly installed at the upper end inside the press frame (1), a pressing block (12) is fixedly connected to the driving end of the heavy-duty hydraulic cylinder (11), a moving mold is fixedly connected to the other end of the pressing block (12), an operating table (2) is fixedly connected to the bottom end of the press frame (1), a fixed mold (21) is fixedly installed at the center of the operating table (2), and conveying rails (3) are provided on both sides of the operating table (2), characterized in that: The conveying track (3) carries an aluminum alloy plate to be stamped inside. A heating and temperature control component (4) is movably connected to one side of the aluminum alloy plate. The heating and temperature control component (4) heats and controls the temperature of the aluminum alloy plate by heat transfer. A transfer component (5) is fixedly installed on the inner side of the press frame (1). Before stamping, the transfer component (5) transfers the heating and temperature control component (4) from above the aluminum alloy plate to the conveying surface of another conveying track (3). The heating and temperature control component (4) includes a heating plate (41) and four sets of clamping components (42). The four sets of clamping components (42) are fixedly installed at the four corners of the heating plate (41). Each clamping component (42) includes a transition plate (421), an electric cylinder (422), and a positioning clamping plate (423). One side of the transition plate (421) is fixedly connected to one side of the electric cylinder (422). The driving end of the electric cylinder (422) is fixedly connected to one end of the positioning clamping plate (423). A rising groove (424) is provided on one side of the positioning clamping plate (423). The top surface of the operating table (2) is fixedly connected with four inclined sliders (22) in a centrally symmetrical manner. One end of the inclined slider (22) is provided with an inclined surface (221). When the electric cylinder (422) drives the positioning clamp (423) to move away from the heating plate (41), one end of the inclined slider (22) will slide into the interior of the rising slide groove (424) and tilt the positioning clamp (423) along the inclined direction of the inclined surface (221), and finally raise the height of the heating and constant temperature component (4).

2. The automotive stamping press according to claim 1, characterized in that: The positioning clamp (423) has two symmetrically arranged mounting slots (425) inside, and rollers (426) are rotatably connected inside the two mounting slots (425).

3. The automotive stamping press according to claim 1, characterized in that: The transfer assembly (5) includes a support frame (51), an electrically controlled slide (52), and a transfer head (53). The electrically controlled slide (52) is fixedly installed at one end of the support frame (51). The drive end of the electrically controlled slide (52) is fixedly connected to one end of the transfer head (53). One end of the transfer head (53) is interlocked with the fixed end of the heating plate (41). The other end of the support frame (51) is fixedly connected to the inside of the press frame (1).

4. The automotive stamping press according to claim 3, characterized in that: The transfer head (53) includes a transfer frame (531), a transfer rod (532), and an electromagnet rod (533). One end of the transfer frame (531) is fixedly connected to the drive end of the electrically controlled slide (52). The transfer rod (532) is fixedly installed at the other end of the transfer frame (531). The other end of the transfer rod (532) is fixedly connected to one end of the electromagnet rod (533). The power supply wire of the electromagnet rod (533) passes through the interior of the transfer rod (532).

5. The automotive stamping press according to claim 4, characterized in that: The heating plate (41) includes a plate body (411), a heating component (412), and a mobile power supply battery (413). The heating end of the heating component (412) is located inside the plate body (411), and the output end of the mobile power supply battery (413) is electrically connected to the input end of the heating component (412).

6. The automotive stamping press according to claim 5, characterized in that: The heating assembly (412) includes a power supply plate (414) and several heating resistance rods (415), with the power input terminals of the several heating resistance rods (415) connected to the power output terminals of the power supply plate (414).

7. The automotive stamping press according to claim 5, characterized in that: An adapter (416) is fixedly installed at the center of the plate (411) by bolts, and a positioning groove (417) is provided inside the adapter (416).

8. The automotive stamping press according to claim 7, characterized in that: One end of the electromagnet rod (533) is movably inserted through the interior of the positioning groove (417). The adapter (416) is made of iron block. After the electromagnet rod (533) is energized and generates magnetic force, it is connected to the positioning groove (417) by magnetic force.

9. A stamping press for automotive parts according to claim 1, characterized in that: The press frame (1) is fixedly connected to two sides of an electric push rod (13), and the drive rod of the electric push rod (13) is fixedly connected to an isolation net (14). The isolation net (14) is set above the junction of the operating table (2) and the conveying track (3).

10. A stamping press for automotive parts according to claim 9, characterized in that: Guide rods (15) are provided on both sides of the isolation net (14). The two ends of the guide rods (15) are fixedly connected to the two sides of the press frame (1). Guide wheels (16) are rotatably connected at the corners of both ends of the isolation net (14). The outer side of the guide wheel (16) rolls against the outer side of the guide rod (15).

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