Thermal forming stamping device for automobile steel plate

Abstract

The utility model discloses an automobile steel plate thermal forming stamping device which comprises a machining base, a machining notch is formed in the machining base, a hydraulic cylinder is arranged on the inner wall of the upper side of the machining notch, the output end of the hydraulic cylinder is connected with a female die fixing base, a female die is arranged at the bottom of the female die fixing base, and a male die fixing base is arranged on the inner wall of the lower side of the machining notch. A male die is arranged at the top of the male die fixing seat, a first slotted hole is formed in the top of the male die fixing seat, a second slotted hole is formed in the bottom of the female die fixing seat, extrusion assemblies are arranged in the first slotted hole and the second slotted hole, driving assemblies are arranged in the female die fixing seat and the male die fixing seat, and a containing groove is formed in the rear side wall of the machining notch. A push plate is arranged in the storage groove, an electric push rod is arranged on the back of the machining base, and the output end of the electric push rod is connected with the push plate. According to the device, the steel plate is separated, so that the steel plate subjected to hot stamping is prevented from being clamped on the female die or the male die, the steel plate is effectively separated and demolded after stamping is completed, and the overall production efficiency is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of punching machines, in particular to a hot forming punching device for automobile steel plates. Background Art

[0002] The hot stamping technology of steel plates is to heat the high-strength steel plates to a certain temperature under high temperature to make them fully austenitized, and then quickly transfer them to the hot stamping die, and use the characteristics of the plate material under high temperature that the ductility and plasticity increase and the yield strength decreases to form them quickly. At the same time, the cooling system set in the die is used to achieve rapid quenching and cooling of the plate material, thereby obtaining ultra-high strength parts with uniform martensitic structure, good shape and size accuracy, and strength above 1500MPa. Compared with traditional cold stamping technology, hot stamping forming technology is a complex forming technology that combines sheet forming and quenching cooling.

[0003] In the prior art, when hot stamping of steel plates is performed, the steel plates are cooled on the stamping die after hot stamping. During the stamping and cooling process of the steel plates, the steel plates are easily stuck on the concave and convex dies of the stamping die due to the force of stamping or thermal expansion and contraction. At this time, additional auxiliary demoulding operations will affect the overall production efficiency of steel plate stamping production. Therefore, we design a hot forming stamping device for automotive steel plates to solve the above technical problems. Utility Model Content

[0004] The utility model aims to provide a hot forming stamping device for automobile steel plates to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A hot forming stamping device for automobile steel plates comprises a processing seat arranged on the top of a base plate, the processing seat is provided with a processing notch, the upper inner wall of the processing notch is provided with a hydraulic cylinder, the output end of the hydraulic cylinder is fixedly connected to a die fixing seat, a die is provided at the bottom center of the die fixing seat, a punch fixing seat is provided on the lower inner wall of the processing notch, a punch fixing seat is provided at the top center of the punch fixing seat, two first slot holes are provided on the top of the punch fixing seat, two second slot holes are provided on the bottom of the die fixing seat, an extrusion assembly is symmetrically provided in the first slot hole and the second slot hole, a driving assembly matching with the extrusion assembly is provided in the interior of the die fixing seat and the interior of the punch fixing seat, a receiving slot is provided in the rear side wall of the processing notch, a push plate adapted thereto is provided in the receiving slot, an electric push rod is fixedly provided on the back of the processing seat, the output end of the electric push rod passes through the receiving slot and is connected to the push plate, and the extrusion assembly and driving assembly in the die fixing seat and the punch fixing seat have the same structure.

[0007] As a preferred solution of the utility model: the extrusion assembly includes an extrusion rod slidably arranged inside the first slot hole, a first return spring is connected between the extrusion rod and the inner bottom wall of the first slot hole, an extrusion ball is provided at the end of the extrusion rod away from the first return spring, and limit blocks are symmetrically provided on the outer surface of the extrusion rod, and a limit groove is opened on the inner side wall of the first slot hole for the limit block to slide and embed.

[0008] As a further preferred embodiment of the present invention: the driving assembly includes a through groove, a push rod, a push block, a second return spring and a wedge block. Two through grooves are provided on the rear side surface of the punch fixing seat. The through grooves are connected to the corresponding first slot holes. A push rod is slidably arranged in the through groove. A wedge block is provided at the inner end of the push rod and a push block is provided at the outer end. The push block is located outside the through groove. A second return spring is connected between the push block and the rear side surface of the punch fixing seat. The second return spring is sleeved on the outside of the push rod.

[0009] As a further preferred solution of the utility model: a slot for inserting a wedge block is formed through the side surface of the extrusion rod, and an inner side wall of the slot is provided with an inclined surface matching with the wedge block.

[0010] As a further preferred solution of the utility model: the male die fixing seat is located directly below the female die fixing seat.

[0011] As a further preferred solution of the present invention: the two first slots are symmetrically distributed on the left and right sides of the punch.

[0012] As a further preferred solution of the present invention: the second slot hole is located directly above the first slot hole.

[0013] Compared with the prior art, the beneficial effect of the utility model is that when the device is used, the push plate is driven to move by the electric push rod, and the push plate can abut against the push block. Specifically, after punching is completed, if the steel plate is stuck on the die and the punch, the electric push rod can be started, so that the push plate and the push block are abutted, and the push block is pushed to move together with the push rod, so that the wedge block can be forced into the slot, and then the extrusion rod and the extrusion ball are driven to move, so that the extrusion ball extends out of the first slot and the second slot, and then the steel plate can be detached, thereby preventing the steel plate after hot stamping from being stuck on the die or the punch, thereby effectively separating and demolding the steel plate after stamping, and ensuring the overall production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the overall structure of the utility model from another viewing angle;

[0016] Figure 3It is a partial structural diagram of the utility model;

[0017] Figure 4 for Figure 1 The enlarged view of point A in the middle;

[0018] Figure 5 for Figure 3 Enlarged view of point B in the middle.

[0019] Wherein: 1-bottom plate, 2-punch, 3-processing seat, 4-electric push rod, 5-punch fixing seat, 6-first slot, 8-second slot, 9-hydraulic cylinder, 10-die, 11-storage slot, 12-push block, 13-push rod, 14-second return spring, 15-push plate, 16-through slot, 17-first return spring, 18-slot, 19-limit block, 20-limit slot, 21-extrusion ball, 22-extrusion rod, 23-wedge block, 24-die fixing seat. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] See also Figure 1-5In the embodiment of the utility model, a hot forming stamping device for automobile steel plates includes a processing seat 3 arranged on the top of a bottom plate 1, a processing notch is arranged on the processing seat 3, a hydraulic cylinder 9 is arranged on the upper inner wall of the processing notch, a die fixing seat 24 is fixedly connected to the output end of the hydraulic cylinder 9, a die 10 is arranged at the bottom center of the die fixing seat 24, a punch fixing seat 5 is arranged on the lower inner wall of the processing notch, a punch 2 is arranged at the top center of the punch fixing seat 5, the punch fixing seat 5 is located directly below the die fixing seat 24, and two first slots 6 are arranged on the top of the punch fixing seat 5, and the two first slots The holes 6 are symmetrically distributed on the left and right sides of the punch 2. Two second slot holes 8 are provided at the bottom of the die fixing seat 24. The second slot holes 8 are located directly above the first slot holes 6. Extrusion components are symmetrically arranged in the first slot holes 6 and the second slot holes 8. The interior of the die fixing seat 24 and the interior of the punch fixing seat 5 are both provided with driving components that cooperate with the extrusion components. A receiving groove 11 is provided on the rear side wall of the processing groove. A push plate 15 corresponding to the receiving groove 11 is provided in the receiving groove 11. An electric push rod 4 is fixed on the back of the processing seat 3. The output end of the electric push rod 4 passes through the receiving groove 11 and is connected to the push plate 15.

[0022] Since the extrusion components and driving components in the female die holder 24 and the male die holder 5 have the same structure, the structure and function of the male die holder 5 are described in detail as follows:

[0023] The extrusion assembly includes an extrusion rod 22 slidably arranged inside the first slot hole 6, a first return spring 17 is connected between the extrusion rod 22 and the inner bottom wall of the first slot hole 6, an extrusion ball 21 is provided at the end of the extrusion rod 22 away from the first return spring 17, and a limit block 19 is symmetrically provided on the outer surface of the extrusion rod 22, and a limit groove 20 is opened on the inner wall of the first slot hole 6 for the limit block 19 to slide and embed.

[0024] The driving assembly includes a through slot 16, a push rod 13, a push block 12, a second return spring 14 and a wedge block 23. Two through slots 16 are provided on the rear side surface of the punch fixing seat 5. The through slots 16 are connected to the corresponding first slot holes 6. A push rod 13 is slidably arranged in the through slot 16. A wedge block 23 is provided at the inner end of the push rod 13 and a push block 12 is provided at the outer end. The push block 12 is located outside the through slot 16. A second return spring 14 is connected between the push block 12 and the rear side surface of the punch fixing seat 5. The second return spring 14 is sleeved on the outside of the push rod 13.

[0025] A slot 18 is formed on the side surface of the extrusion rod 22 for the wedge block 23 to be inserted into, and an inner wall of the slot 18 is provided with an inclined surface that matches the wedge block 23. The structural design of the slot 18 is equivalent to another wedge block that matches the wedge block 23. Through the squeezing of the two wedge blocks, the extrusion rod 22 is driven to move away from the first return spring 17, which can drive the extrusion ball 21 to extend out of the first slot 6 to separate the stamped steel plate workpiece, thereby preventing the hot stamped steel plate from being stuck in the die 10 or the punch 2, thereby effectively separating and demolding the steel plate after stamping.

[0026] The push plate 15 is driven to move by the electric push rod 4, and the push plate 15 can abut against the push block 12. Specifically, after punching is completed, if the steel plate is stuck on the die and the punch, the electric push rod 4 can be started, so that the push plate 15 abuts against the push block 12, and pushes the push block 12 to move together with the push rod 13, so that the wedge block 23 can be forced into the slot 18, and then the extrusion rod 22 and the extrusion ball 21 are driven to move, so that the extrusion ball 21 extends out of the first slot 6 and the second slot 8, and then the steel plate can be detached, thereby preventing the steel plate after hot stamping from being stuck on the die 10 or the punch 2, so that the steel plate can be effectively separated and demolded after stamping is completed, and the overall production efficiency is guaranteed.

[0027] It should be understood that although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A hot forming stamping device for automobile steel plates, comprising a processing seat (3) arranged on the top of a base plate (1); characterized in that: The processing seat (3) is provided with a processing notch, the upper inner wall of the processing notch is provided with a hydraulic cylinder (9), the output end of the hydraulic cylinder (9) is fixedly connected to a die fixing seat (24), a die (10) is provided at the bottom center of the die fixing seat (24), a punch fixing seat (5) is provided on the lower inner wall of the processing notch, a punch (2) is provided at the top center of the punch fixing seat (5), two first slot holes (6) are provided at the top of the punch fixing seat (5), and two second slot holes (8) are provided at the bottom of the die fixing seat (24), the first slot hole (6) and the second slot hole (8) are provided at the bottom of the die fixing seat (24), and the first slot hole (6) and the second slot hole (10) are provided at the bottom of the die fixing seat (24). An extrusion assembly is symmetrically arranged in the hole (8), and a driving assembly matching the extrusion assembly is arranged inside the die fixing seat (24) and the punch fixing seat (5). A receiving groove (11) is provided on the rear side wall of the processing notch, and a push plate (15) adapted thereto is arranged in the receiving groove (11). An electric push rod (4) is fixedly arranged on the back of the processing seat (3), and an output end of the electric push rod (4) passes through the receiving groove (11) and is connected to the push plate (15). The extrusion assembly and the driving assembly inside the die fixing seat (24) and the punch fixing seat (5) have the same structure.

2. The automobile steel plate hot forming stamping device according to claim 1, characterized in that: The extrusion assembly comprises an extrusion rod (22) slidably arranged inside the first slot hole (6), a first return spring (17) is connected between the extrusion rod (22) and the inner bottom wall of the first slot hole (6), an extrusion ball (21) is arranged at one end of the extrusion rod (22) away from the first return spring (17), a limit block (19) is symmetrically arranged on the outer surface of the extrusion rod (22), and a limit groove (20) is provided on the inner wall of the first slot hole (6) for the limit block (19) to be slidably embedded.

3. The automobile steel plate hot forming stamping device according to claim 2, characterized in that: The driving assembly comprises a through slot (16), a push rod (13), a push block (12), a second return spring (14) and a wedge block (23); the rear side surface of the punch fixing seat (5) is provided with two through slots (16); the through slots (16) are communicated with the interior of the corresponding first slot hole (6); a push rod (13) is slidably arranged in the through slot (16); a wedge block (23) is arranged at the inner end of the push rod (13) and a push block (12) is arranged at the outer end; the push block (12) is located outside the through slot (16); a second return spring (14) is connected between the push block (12) and the rear side surface of the punch fixing seat (5); and the second return spring (14) is sleeved on the outside of the push rod (13).

4. The automobile steel plate hot forming stamping device according to claim 3, characterized in that: A slot opening (18) for inserting a wedge block (23) is formed through the side surface of the extrusion rod (22), and an inner side wall of the slot opening (18) is provided with an inclined surface matching the wedge block (23).

5. The automobile steel plate hot forming stamping device according to claim 4, characterized in that: The male die fixing seat (5) is located directly below the female die fixing seat (24).

6. The automobile steel plate hot forming stamping device according to claim 5, characterized in that: The two first slots (6) are symmetrically distributed on the left and right sides of the punch (2).

7. The automobile steel plate hot forming stamping device according to claim 1, characterized in that: The second slot hole (8) is located directly above the first slot hole (6).

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