Aluminum alloy front frame stamping die and stamping process

Abstract

The invention discloses an aluminum alloy front frame stamping die and a stamping process, and relates to the technical field of stamping dies. The stamping die comprises a die base and a die body arranged on the die base, the die body comprises an upper die plate and a lower die plate, a guide mechanism is arranged between the lower die plate and the upper die plate, a power device is further arranged on the die body, and a reinforcing assembly is arranged at the top of the upper die plate. The stamping die is high in strength, good in buffering effect and beneficial to prolonging the service life; the reinforcing assembly can evenly share the force applied to the upper die plate by the power device, the upper die plate is evenly stressed, meanwhile, the reinforcing assembly improves the bearing capacity of the upper die plate, a positioning assembly in the guide mechanism enables the stamping die to have better precision in the using process, a buffering assembly provides the buffering effect between the upper die plate and the lower die plate, and the service life of the stamping die is prolonged. Rigid collision is avoided when the upper die plate and the lower die plate are punched; the stamping process is simple and efficient, and the production efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of stamping dies, and in particular to a stamping die and a stamping process for an aluminum alloy front frame. Background Art

[0002] Aluminum alloy is a metal with high hardness and light weight. Workpieces made of aluminum alloy have excellent performance and are widely used in various industries. Aluminum alloy workpieces are usually produced using stamping dies. Stamping dies are a pressure processing method that uses high pressure to apply pressure to the material on the die at room temperature to cause separation or plastic deformation, thereby obtaining the desired workpiece.

[0003] When using a mold for stamping processing, it is necessary to apply a large impact force to the material to be processed. The impact force not only affects the material, but also has a great impact on the stamping mold itself. If the structural strength of the stamping mold is not high enough, the stamping mold may be damaged after working for a period of time. The cost of the stamping mold is high, and frequent mold replacement causes great losses to the production company. Based on this, a stamping mold with higher strength is needed. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide an aluminum alloy front frame stamping die and stamping process. By setting a reinforcing component, the structural strength of the stamping die is improved, and the guiding mechanism improves the stamping accuracy and buffering effect, which is beneficial to increase the production efficiency and service life of the stamping die.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: a stamping die for an aluminum alloy front frame, comprising a stamping die, the stamping die comprising a die base and a die body arranged on the die base, a plurality of supporting blocks are arranged between the die base and the die body, the die body comprises an upper die plate and a lower die plate, the upper die plate is located above the lower die plate, a guide mechanism is provided between the lower die plate and the upper die plate, a power device is also provided on the die body, the power device is connected to the upper die plate, a forming convex die is provided on the side of the upper die plate facing the lower die plate, a forming concave die is provided on the side of the lower die plate opposite to the upper die plate, and a reinforcing component is provided on the top of the upper die plate.

[0006] The present invention is further configured as follows: the power device is detachably connected to the upper template, at least a portion of the reinforcement assembly is connected to the power device, the reinforcement assembly includes a first reinforcement strip and a second reinforcement strip relatively arranged at both ends of the top surface of the upper template, a connecting block is provided between the first reinforcement strip and the second reinforcement strip, a plurality of connecting holes are provided on the connecting block, and limiting grooves are respectively provided at two ends of the connecting block, a third reinforcement strip is also provided on the upper template between the connecting block and the first reinforcement strip, a plurality of screw holes are provided on the first reinforcement strip and the second reinforcement strip, and the second reinforcement strip and the third reinforcement strip are symmetrically arranged.

[0007] The present invention is further configured as follows: the power device has a pressure plate, the pressure plate is a rectangular plate, a pressure rod is provided on the lower end surface of the pressure plate, the pressure rod is connected to the third reinforcement bar and the upper template between the connecting block, the pressure plate is respectively fixedly connected to the first reinforcement bar, the second reinforcement bar, the third reinforcement bar and the upper end of the connecting block, and a protrusion is also provided on one side of the connecting block, and a fixing hole is opened on the protrusion.

[0008] The present invention is further configured as follows: the guiding mechanism includes a positioning assembly and a buffer assembly, the buffer assembly is arranged on one side of the positioning assembly, at least four positioning assemblies are provided, the four positioning assemblies are respectively arranged at four corners between the upper template and the lower template, the buffer assembly corresponds to the positioning assembly one by one, each positioning assembly includes a positioning rod and a guide tube, the positioning rod is arranged on the lower end surface of the upper template, the guide tube is arranged on the upper end surface of the lower template, and at least a portion of the positioning rod extends into the guide tube.

[0009] The present invention is further configured as follows: each of the buffer components includes a buffer shaft and a buffer sleeve, the buffer shaft is arranged on the lower end surface of the upper template, the buffer sleeve is arranged on the upper end surface of the lower template, at least a portion of the buffer shaft extends into the buffer sleeve, a buffer member is provided in the buffer sleeve, and the elastic member is one of a metal coil spring, a rubber elastic member, and a gas spring.

[0010] The present invention is further configured as: a stamping process for an aluminum alloy front frame, comprising the following steps: Step 1: Select the appropriate aluminum alloy profiles and transport them to the stacking area on one side of the CNC machine tool for standby use; Step 2: Incoming material inspection: Perform a preliminary inspection on the aluminum alloy profile manually to observe whether it is bent or deformed as a whole. Then, the aluminum alloy profile that passes the preliminary inspection is sent to the inspection area on the CNC machine tool for further inspection using an ultrasonic flaw detector. Step 3: Pre-processing: the aluminum alloy profiles that have passed the inspection are directly sent to the CNC machine tool for pre-processing. The aluminum alloy profiles are cut, segmented, bent, and trimmed to form semi-finished workpieces. The semi-finished workpieces are then taken out manually or by a robot and sent to the storage area. Step 4: die stamping: the semi-finished workpiece in the storage area is sent into the stamping die, the semi-finished workpiece is placed on the forming die of the lower die plate, the upper die plate is driven by a power device to synchronously pass the forming punch and press down, and the stamping die stamps the semi-finished workpiece once to obtain the front frame blank; Step 5, post-processing, first clean the formed front frame blank, wash off the metal debris on the front frame blank, then use the air drying device to blow air to the front frame blank to dry it, and finally use the grinder to grind and remove burrs for the front frame blank to obtain a finished front frame.

[0011] The present invention is further configured as follows: in the step four, first determine the spatial height between the upper template and the lower template, determine the feed gap, and make it able to accommodate the semi-finished workpiece, feed the semi-finished workpiece into the forming die, and the power device drives the lower template to move downward, and the lower template simultaneously drives the forming punch to press down, and the semi-finished workpiece is stamped and formed through the concave and convex cooperation of the forming punch and the forming die, and the semi-finished workpiece after stamping forms a front frame blank.

[0012] The present invention is further configured as follows: in the step five, the finished front frame includes a workpiece body, and a plurality of connection holes and functional holes are punched out on the workpiece body, and the connection holes are respectively arranged around the functional holes, and the functional holes are respectively an explosion-proof valve hole, a low-pressure system hole, a high-pressure system hole and a liquid cooling system hole, and there are at least two liquid cooling system holes.

[0013] In summary, the present invention has the following beneficial effects: the stamping die has high strength and good buffering effect, which is conducive to improving the service life; the reinforcing component can evenly distribute the force applied by the power device to the upper template, so that the upper template is evenly stressed, and at the same time the reinforcing component improves the bearing capacity of the upper template. The positioning component in the guide mechanism enables the stamping die to have better precision when used, and the buffering component provides a buffering effect between the upper template and the lower template, so that there will be no hard collision between the upper template and the lower template during stamping; the stamping process is simple and efficient, and the production efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the forming convex structure of the present invention; Figure 3 It is a schematic diagram of the structure of the forming die of the present invention; Figure 4 It is a stamping process flow chart of the present invention; Figure 5 It is a schematic diagram of the finished structure of the front frame of the present invention.

[0015] In the figure: 1. stamping die; 2. die base; 21. bearing block; 3. die body; 31. upper die plate; 32. lower die plate; 4. reinforcement assembly; 41. first reinforcement strip; 42. second reinforcement strip; 43. connecting block; 44. third reinforcement strip; 5. forming punch; 6. forming die; 7. positioning assembly; 8. buffer assembly; 9. finished front frame; 10. explosion-proof valve hole; 11. low-pressure system hole; 12. high-pressure system hole; 13. liquid cooling system hole. DETAILED DESCRIPTION

[0016] The present invention is described in detail below in conjunction with the accompanying drawings and embodiments.

[0017] like Figure 1 , Figure 2 , Figure 3 As shown, the present invention is a stamping die for an aluminum alloy front frame, comprising a stamping die 1, the stamping die 1 is composed of a die base 2 and a die body 3, the die body 3 is composed of an upper die plate 31 and a lower die plate 32, the die base 2 is used to carry the die body 3, a plurality of bearing blocks 21 are arranged between the die base 2 and the die body 3, the bearing blocks 21 form a gap between the die base 2 and the lower die plate 32, a part of the structure of the lower die plate 32 extends downward into the gap, wherein the downward side of the upper die plate 31 is provided with a forming convex die 5, and the upward side of the lower die plate 32 is provided with a forming convex die 5. The forming die 6, the forming punch 5 and the forming die 6 are arranged relatively to each other. When in use, the upper template 31 moves downward under the drive of the power device to stamp the aluminum alloy profile placed on the forming die 6. A reinforcing component 4 is provided on the top of the upper template 31. The power device is connected to the reinforcing component 4. The reinforcing component 4 is used to improve the strength of the mold body 3 and increase the service life of the mold body 3. At the same time, the reinforcing component 4 evenly disperses the force applied by the power device to the entire upper template 31, so that the force received by the upper template 31 is more balanced, thereby improving the stamping accuracy.

[0018] Specifically, Figure 1As shown, the power device is arranged above the upper template 31, and the power device uses one of a hydraulic cylinder, a pneumatic cylinder, and a servo motor. The power device has an output shaft, a pressure plate is provided at the bottom of the output shaft, and a pressure rod is provided on the lower end surface of the pressure plate. When in use, the bottom of the output shaft is fixedly connected to the pressure plate, and the pressure plate is respectively fixedly connected to the upper ends of the first reinforcement strip 41, the second reinforcement strip 42, the third reinforcement strip 44 and the connecting block 43, and the pressure rod is fixedly provided on the upper template 31, and the pressure plate is used to evenly disperse the force generated by the output shaft to the entire upper template 31; wherein the first reinforcement strip 41, the second reinforcement strip 42, the third reinforcement strip 44 and the connecting block 43 are arranged side by side on the upper end surface of the upper template 31, and the first reinforcement strip 41 and the second reinforcement strip 42 are provided with screw holes, and the screw holes are connected to the pressure plate through bolts.

[0019] like Figure 1 As shown, the guide mechanism is arranged between the upper template 31 and the lower template 32, and the guide mechanism is composed of a plurality of positioning components 7 and buffer components 8. There are at least four positioning mechanisms, and the four positioning components 7 are respectively arranged at four corners between the upper template 31 and the lower template 32. Each positioning component 7 is composed of a positioning rod and a guide tube, wherein the positioning rod is arranged on the lower end surface of the upper template 31, and the guide tube is arranged on the upper end surface of the lower template 32. The positioning rod is perpendicular to the guide tube, and at least a part of the positioning rod extends into the guide tube; the buffer components 8 correspond to the positioning components 7 one by one, and the buffer components 8 are respectively arranged on one side of the positioning components 7, and each buffer component 8 is composed of a buffer shaft and a buffer sleeve, wherein the buffer shaft is arranged on the lower end surface of the upper template 31, the buffer sleeve is arranged on the upper end surface of the lower template 32, at least a part of the buffer shaft extends into the buffer sleeve, and a buffer member is provided in the buffer sleeve, which is preferably a metal coil spring, and a rubber pad is provided on the top of the metal coil spring. When in use, after the buffer shaft extends into the buffer sleeve, its bottom is pressed on the rubber pad; the positioning component 7 guides and positions the up and down movement of the upper template 31, so that the stamping operation is more accurate, and the buffer component 8 plays a buffering role when the upper template 31 is stamped, limits the downward pressing stroke and buffers the impact force of the upper template 31, which is beneficial to protect the stamping die 1.

[0020] like Figure 4 , Figure 5As shown, a stamping process for an aluminum alloy front frame of the present invention adopts the above-mentioned stamping die 1 and is realized by the following steps: step 1, profile incoming material, select suitable aluminum alloy profiles, and transport the aluminum alloy profiles to the stacking area on one side of the CNC machine tool for standby; step 2, incoming material inspection, manually perform a preliminary inspection on the aluminum alloy profile to observe whether it is bent or deformed as a whole, and then send the aluminum alloy profile that has passed the preliminary inspection to the inspection area on the CNC machine tool, and further inspect the aluminum alloy profile by an ultrasonic flaw detector; step 3, pre-processing, the aluminum alloy profile that has passed the inspection directly enters the CNC machine tool for pre-processing, and the aluminum alloy profile is cut, segmented, bent, and trimmed to form a semi-finished workpiece, and then the semi-finished workpiece is taken out by hand or a robot and sent to the storage area; step 4, mold stamping, the semi-finished workpiece in the storage area is sent into the stamping die 1, the semi-finished workpiece is placed on the forming die 6 of the lower template 32, and the upper template 31 is driven synchronously by a power device The band-pass forming punch 5 is pressed down, and the stamping die 1 stamps and forms the semi-finished workpiece once to obtain a front frame blank; step five, post-processing, first cleaning the formed front frame blank, washing the metal debris on the front frame blank, then blowing the front frame blank with air through an air drying device to dry it, and finally grinding and deburring the front frame blank through a grinder to obtain a front frame finished product 9; through the above-mentioned stamping process, the material selection, pretreatment, and stamping forming processes of aluminum alloy profiles until the front frame finished product 9 can be realized, the process is simple and efficient, the production efficiency is high, and the yield rate of the manufactured workpiece is high; the manufactured front frame finished product 9 includes a workpiece body, and a plurality of connecting holes and functional holes are stamped out on the workpiece body, and the connecting holes are respectively arranged around the functional holes, and the functional holes are respectively explosion-proof valve holes 10, low-pressure system holes 11, high-pressure system holes 12 and liquid cooling system holes 13, and the explosion-proof valve hole 10 is equipped with an electromagnetic explosion-proof valve, and the liquid cooling system hole 13 is provided with at least two, which are a refrigerant inlet and a refrigerant outlet.

[0021] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A stamping die for an aluminum alloy front frame, comprising a stamping die (1), characterized in that: The stamping die (1) comprises a die base (2) and a die body (3) arranged on the die base (2); a plurality of bearing blocks (21) are arranged between the die base (2) and the die body (3); the die body (3) comprises an upper die plate (31) and a lower die plate (32); the upper die plate (31) is located above the lower die plate (32); a guide mechanism is provided between the lower die plate (32) and the upper die plate (31); a power device is also provided on the die body (3); the power device is connected to the upper die plate (31); a molding convex die (5) is provided on a side of the upper die plate (31) facing the lower die plate (32); a molding concave die (6) is provided on a side of the lower die plate (32) opposite to the upper die plate (31); and a reinforcing component (4) is provided on the top of the upper die plate (31).

2. The aluminum alloy front frame stamping die according to claim 1, characterized in that: The power device is detachably connected to the upper template (31); at least a portion of the reinforcement assembly (4) is connected to the power device; the reinforcement assembly (4) comprises a first reinforcement strip (41) and a second reinforcement strip (42) which are arranged at two ends of the top surface of the upper template (31) relative to each other; a connecting block (43) is arranged between the first reinforcement strip (41) and the second reinforcement strip (42); a plurality of connecting holes are formed on the connecting block (43); limiting grooves are respectively formed at two ends of the connecting block (43); a third reinforcement strip (44) is also arranged on the upper template (31) between the connecting block (43) and the first reinforcement strip (41); a plurality of screw holes are formed on the first reinforcement strip (41) and the second reinforcement strip (42); and the second reinforcement strip (42) and the third reinforcement strip (44) are symmetrically arranged.

3. The aluminum alloy front frame stamping die according to claim 2, characterized in that: The power device comprises a pressure plate, which is a rectangular plate. A pressure rod is provided on the lower end surface of the pressure plate. The pressure rod is connected to the upper template (31) between the third reinforcement strip (44) and the connecting block (43). The pressure plate is fixedly connected to the upper ends of the first reinforcement strip (41), the second reinforcement strip (42), the third reinforcement strip (44) and the connecting block (43) respectively. A protrusion is also provided on one side of the connecting block (43), and a fixing hole is opened on the protrusion.

4. The aluminum alloy front frame stamping die according to claim 1, characterized in that: The guide mechanism comprises a positioning component (7) and a buffer component (8), wherein the buffer component (8) is arranged on one side of the positioning component (7), at least four positioning components (7) are provided, and the four positioning components (7) are respectively arranged at four corners between the upper template (31) and the lower template (32), and the buffer component (8) corresponds to the positioning component (7) one by one, and each positioning component (7) comprises a positioning rod and a guide tube, wherein the positioning rod is arranged on the lower end surface of the upper template (31), and the guide tube is arranged on the upper end surface of the lower template (32), and at least a part of the positioning rod extends into the guide tube.

5. The aluminum alloy front frame stamping die according to claim 4, characterized in that: Each of the buffer components (8) comprises a buffer shaft and a buffer sleeve, wherein the buffer shaft is arranged on the lower end surface of the upper template (31), and the buffer sleeve is arranged on the upper end surface of the lower template (32). At least a portion of the buffer shaft extends into the buffer sleeve, and a buffer member is arranged in the buffer sleeve. The elastic member is one of a metal coil spring, a rubber elastic member, and a gas spring.

6. A stamping process for an aluminum alloy front frame, used for the aluminum alloy front frame stamping die according to any one of claims 1 to 5, characterized in that: The following steps are involved: Step 1: Select the appropriate aluminum alloy profiles and transport them to the stacking area on one side of the CNC machine tool for standby use; Step 2: Incoming material inspection: Perform a preliminary inspection on the aluminum alloy profile manually to observe whether it is bent or deformed as a whole. Then, the aluminum alloy profile that passes the preliminary inspection is sent to the inspection area on the CNC machine tool for further inspection using an ultrasonic flaw detector. Step 3: Pre-processing: the aluminum alloy profiles that have passed the inspection are directly sent to the CNC machine tool for pre-processing. The aluminum alloy profiles are cut, segmented, bent, and trimmed to form semi-finished workpieces. The semi-finished workpieces are then taken out manually or by a robot and sent to the storage area. Step 4: die stamping: the semi-finished workpiece in the storage area is fed into the stamping die (1), and the semi-finished workpiece is placed on the forming concave die (6) of the lower die plate (32). The upper die plate (31) is driven by a power device to synchronously pass the forming convex die (5) and press down. The stamping die (1) stamps the semi-finished workpiece once to obtain a front frame blank. Step 5, post-processing, first clean the formed front frame blank, wash off the metal debris on the front frame blank, then use the air drying device to blow air to dry the front frame blank, and finally use the grinder to grind and remove burrs on the front frame blank to obtain a finished front frame (9).

7. The aluminum alloy front frame stamping process according to claim 6, characterized in that: In the step 4, the spatial height between the upper template (31) and the lower template (32) is first determined, and the feeding gap is determined so that it can accommodate the semi-finished workpiece. The semi-finished workpiece is fed into the forming die (6), and the power device drives the lower template (32) to move downward. The lower template (32) simultaneously drives the forming punch (5) to press downward. Through the concave-convex cooperation of the forming punch (5) and the forming die (6), the semi-finished workpiece is stamped and formed. The semi-finished workpiece after stamping forms a front frame blank.

8. The aluminum alloy front frame stamping process according to claim 6, characterized in that: In step five, the finished front frame (9) includes a workpiece body, on which a plurality of connection holes and functional holes are punched, the connection holes are arranged around the functional holes, and the functional holes are respectively an explosion-proof valve hole (10), a low-pressure system hole (11), a high-pressure system hole (12) and a liquid cooling system hole (13), and at least two of the liquid cooling system holes (13) are provided.

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