High-precision aluminum alloy profile hydraulic punch

Abstract

The present application relates to hydraulic press equipment technical field, specifically, a kind of high-precision aluminum alloy profile hydraulic press.It includes stamping base, the stamping base top is provided with the stamping assembly for stamping, the stamping assembly includes stamping slide, the stamping slide below is opposite stamping base, the present application can be in the process of stamping slide and synchronous lifting plate down stamping, first by the reset spring and telescopic spring of the force top plate upper and lower side staggered distribution to the force top plate and the effect of multiple locking stand, to multiple locking stand Forming progressive pressure, multiple locking stand is locked to the extrusion of the top surface of aluminum alloy plate two sides multiple point, then, again by extrusion spring, opposite stable component and extrusion locking bottom ring form stable multidirectional extrusion locking to the top surface of aluminum alloy plate middle part, complete to the extrusion locking of aluminum alloy plate first edge then middle, all-around from top to bottom, prevent aluminum alloy plate deviation.

Description

Technical Field

[0001] This invention relates to the field of hydraulic punching equipment technology, and in particular to a high-precision hydraulic punching machine for aluminum alloy profiles. Background Technology

[0002] A hydraulic punch press is a punch press that uses a hydraulic cylinder to generate compressive force. Hydraulic punch presses are commonly used in forging, riveting, molding, blanking, deep drawing and metal forming processes. In the forming process of aluminum alloy profiles, hydraulic punch presses are sometimes used for processing.

[0003] Aluminum alloy is one of the commonly used materials for stamping parts. Stamped aluminum alloy has good formability, strength and corrosion resistance. It is mainly divided into two forms: sheet and strip.

[0004] When aluminum alloy profiles are stamped, the stamping speed of the hydraulic press is relatively high, and the edges of the stamping section shear the sheet metal. During the stamping process, the aluminum alloy profile is subjected to a large impact, which can easily cause it to shift. High-precision aluminum alloy profiles, due to their high processing accuracy requirements, often require locking mechanisms to lock their position on the stamping press to accurately position the stamping and improve stamping accuracy. Most locking structures for stamped parts lock at the edges. When stamping occurs, this edge locking method can be affected by the stretching and shifting of the aluminum alloy profile during stamping, impacting the locking structure at the edge and affecting its service life. Summary of the Invention

[0005] The purpose of this invention is to provide a high-precision aluminum alloy profile hydraulic punch to solve the problem that most locking structures for high-precision aluminum alloy profiles lock at the edge of the stamped part. When stamping occurs, the edge locking method will affect the service life of the locking structure due to the extension and displacement of the aluminum alloy profile during stamping.

[0006] To achieve the above objectives, the present invention provides a high-precision aluminum alloy profile hydraulic punching press, including a stamping base bed, a stamping assembly for stamping is provided above the stamping base bed, the stamping assembly includes a stamping slide block, the stamping slide block is directly facing the stamping base bed, an ejection assembly for ejecting the stamped aluminum alloy profile is provided at the bottom inner side of the stamping base bed, and a top-level locking mechanism for inserting and locking the aluminum alloy profile is provided on the stamping base bed;

[0007] A synchronous locking structure includes a synchronous lifting assembly and a compression locking assembly. The synchronous lifting assembly includes a synchronous lifting plate, which is disposed on the stamping slide block. The compression locking assembly is disposed below the synchronous lifting plate and faces the stamping base. One side of the synchronous lifting plate is located directly above the top-level locking mechanism, and the synchronous lifting plate is connected to the top-level locking mechanism. When the synchronous lifting plate descends, it will act on the top-level locking mechanism.

[0008] The compression locking assembly includes a compression locking bottom ring, a compression spring, and a counter-stabilizing assembly. The compression locking bottom ring is disposed below the synchronous lifting plate, the compression spring is disposed between the compression locking bottom ring and the synchronous lifting plate, and the counter-stabilizing assembly is disposed at the edge of the compression locking bottom ring between the compression locking bottom ring and the synchronous lifting plate. The counter-stabilizing assembly forms a counter-tilting support and compression on the compression locking bottom ring.

[0009] As a further improvement to this technical solution, the opposing stabilizing component includes a positioning rail, a compression spring, and a synchronous lifting frame. The positioning rail is vertically arranged at the bottom of the synchronous lifting plate. A guide groove is provided on the positioning rail along the length of the positioning rail. The compression spring is arranged inside the guide groove of the positioning rail. One end of the synchronous lifting frame is slidably installed in the guide groove of the positioning rail and connected to the compression spring, and the other end is connected to the edge of the compression locking bottom ring.

[0010] The opposing stabilizing components are provided at the four edges of the compression locking bottom ring, so that the four opposing stabilizing components form a four-way opposing compression on the compression locking bottom ring.

[0011] As a further improvement to this technical solution, the compression locking bottom ring includes a cross connecting frame and a compression ring plate disposed at the bottom end of the cross connecting frame, wherein the opposing stabilizing components are respectively connected to the four corners of the cross connecting frame;

[0012] The bottom end of the extrusion ring plate is provided with a soft pad ring to prevent hard friction.

[0013] As a further improvement to this technical solution, the synchronous lifting assembly also includes a limiting vertical shaft, which is distributed in groups of four on the four sides of the stamping base bed, and the four limiting vertical shafts pass through the four corners of the synchronous lifting plate respectively.

[0014] As a further improvement to this technical solution, the stamping assembly also includes a base and a stamping drive assembly. The base is an L-shaped base, the stamping drive assembly is disposed at the end of the base, and the stamping slide is disposed at the output end of the stamping drive assembly.

[0015] As a further improvement to this technical solution, the stamping base is provided with shielding side seats on both sides, and the shielding side seats are provided with slots that fit the top surface of the stamping base. The slots of the two shielding side seats are correspondingly positioned. The top locking mechanism includes an insertion locking component and a pressing connecting component. The insertion locking component includes a locking frame. Multiple locking frames are arranged in parallel as a group. Multiple locking frames penetrate the shielding side seats vertically, and the bottom end of the locking frame is located in the slot of the shielding side seat. The pressing connecting component is provided at the end of the locking frame and is located directly below one side of the synchronous lifting plate, so that when the synchronous lifting plate moves down, it can press the pressing connecting component and form further pressing on the locking frame.

[0016] The locking frame includes a slide rod that is slidably mounted on the shielding side seat in a vertical direction and an extrusion block disposed at the bottom end of the slide rod. The side of the extrusion block facing the stamping base is an arc edge.

[0017] As a further improvement to this technical solution, the top-level locking mechanism also includes a return spring. The return spring is arranged around the outside of the slide rod of the locking frame, and one end of the return spring is connected to the top wall of the shielding side seat, and the other end is connected to the end of the slide rod of the locking frame, so that when the slide rod part of the locking frame moves upward, the return spring will act on the slide rod part of the locking frame.

[0018] As a further improvement to this technical solution, the extrusion connector includes a force-bearing top plate, a telescopic spring, and a through-plate shaft. The force-bearing top plate is disposed at the top of multiple locking uprights, and a through-slot is formed on the force-bearing top plate. The through-plate shaft is disposed at the lower end of the synchronous lifting plate, and the bottom end of the through-plate shaft passes through the through-slot of the force-bearing top plate. The telescopic spring is disposed between the force-bearing top plate and the synchronous lifting plate, and the telescopic spring surrounds the outside of the through-plate shaft.

[0019] The through-plate shafts and telescopic springs are arranged in a parallel group above the stressed top plate, and the through-plate shafts and the locking brackets are staggered on the upper and lower sides of the stressed top plate. At the same time, the telescopic springs and the return springs are also staggered on the upper and lower sides of the stressed top plate.

[0020] Compared with the prior art, the present invention provides a high-precision aluminum alloy profile hydraulic punching press, which has the following beneficial effects:

[0021] This invention, through the combined action of a top-level locking mechanism and a synchronous locking structure, enables the stamping process of the stamping slider and synchronous lifting plate to proceed. First, the return springs and extension springs, which are staggered on the upper and lower sides of the top plate, exert progressive downward pressure on the top plate and multiple locking brackets. These multiple locking brackets then apply multi-point compression and locking to both sides of the top surface of the aluminum alloy sheet. Subsequently, the compression springs, opposing stabilizing components, and compression locking bottom rings form a stable, multi-directional compression and locking of the middle portion of the top surface of the aluminum alloy sheet. This completes the compression and locking of the aluminum alloy sheet from the edges to the center, and from top to bottom in all directions, preventing the aluminum alloy sheet from shifting.

[0022] It should be clarified that, unlike ordinary edge locking structures, the top-down extrusion locking structure can effectively prevent the impact on the locking structure when the aluminum alloy sheet stretches and shifts during the stamping process, thereby extending the service life of the locking structure. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the overall structure from another perspective of the present invention;

[0025] Figure 3 This is a schematic diagram of the overall structure of the present invention from a third perspective;

[0026] Figure 4 This is a schematic diagram showing the structural distribution of the synchronous lifting plate, the compression locking assembly, and the top-level locking mechanism in this invention;

[0027] Figure 5 for Figure 4 Enlarged view of the structure at point A in the middle;

[0028] Figure 6 This is a side view of the overall structure after the stamping drive assembly has been removed in this invention;

[0029] Figure 7 for Figure 6 Structural cross-sectional view along the BB direction;

[0030] Figure 8 for Figure 6 Cross-sectional view of the structure in the CC direction.

[0031] In the diagram: 1. Stamping base; 2. Stamping assembly; 201. Stamping slide block; 202. Base base; 203. Stamping drive assembly; 3. Ejection assembly; 4. Top layer locking mechanism; 41. Insert locking element; 411. Locking stand; 412. Return spring; 42. Extrusion connector; 421. Force-bearing top plate; 422. Telescopic spring; 423. Through plate shaft; 5. Synchronous locking structure; 51. Synchronous lifting assembly; 511. Limiting shaft; 512. Synchronous lifting plate; 52. Extrusion locking assembly; 521. Extrusion locking bottom ring; 522. Extrusion spring; 6. Opposing stabilizing assembly; 601. Positioning rail; 602. Compression spring; 603. Synchronous lifting frame; 7. Covering side seat. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Reference Figure 1-8 A high-precision hydraulic punch press for aluminum alloy profiles is provided. To help stabilize the aluminum alloy sheet during punching and form a progressive extrusion and locking of the punched part from top to bottom, thus extending the service life of the locking structure, the press includes a punching base 1 and a synchronous locking structure 5. The punching base 1 is equipped with a punching assembly 2 for punching. The punching assembly 2 includes a punching slide 201, which faces the punching base 1. The bottom inner side of the punching base 1 is equipped with an ejection assembly 3 for ejecting the punched aluminum alloy profile. The ejection assembly 3 is a mechanism for ejection by a cylinder, which will not be described in detail here. The punching base 1 is equipped with a top-level locking mechanism 4 for inserting and locking the aluminum alloy profile.

[0034] The synchronous locking structure 5 includes a synchronous lifting assembly 51 and a compression locking assembly 52. ​​The synchronous lifting assembly 51 includes a synchronous lifting plate 512, which is disposed on the stamping slide block 201. The compression locking assembly 52 is disposed below the synchronous lifting plate 512 and faces the stamping base bed 1. One side of the synchronous lifting plate 512 is located directly above the top locking mechanism 4, and the synchronous lifting plate 512 is connected to the top locking mechanism 4. When the synchronous lifting plate 512 descends, it will act on the top locking mechanism 4 to form a further compression lock on the top locking mechanism 4, helping the top locking mechanism 4 to lock the aluminum alloy profile on the stamping base bed 1.

[0035] The extrusion locking assembly 52 includes an extrusion locking bottom ring 521, an extrusion spring 522, and a counter-stabilizing assembly 6. The extrusion locking bottom ring 521 is positioned below the synchronous lifting plate 512, and the extrusion spring 522 is positioned between the extrusion locking bottom ring 521 and the synchronous lifting plate 512. When the stamping slider 201 and the synchronous lifting plate 512 descend, the extrusion locking bottom ring 521 first contacts the aluminum alloy profile on the stamping base 1, thereby compressing the extrusion spring 522. At this time, the extrusion locking bottom ring 521 presses the aluminum alloy profile tightly against the stamping base 1, forming a lock on the aluminum alloy profile. Then, when the stamping slider 201 continues to descend, the stamping of the aluminum alloy profile is completed. Figure 4 and Figure 7 As shown, an inner bushing column is provided on the inner side of the compression spring 522 to prevent the compression spring 522 from bending and being damaged during compression. The opposing stabilizing component 6 is provided between the edge of the compression locking bottom ring 521 and the synchronous lifting plate 512. The opposing stabilizing component 6 forms opposing tilt support and compression on the compression locking bottom ring 521. Due to the limitations of the material and shape of the compression spring 522, when the compression locking bottom ring 521 shifts to the left or right, the compression spring 522 is prone to horizontal bending deformation, which causes the compression direction of the compression locking bottom ring 521 to change, affecting the stability during stamping. However, by forming an opposing stabilizing structure between the edge of the compression locking bottom ring 521 and the synchronous lifting plate 512 through the opposing stabilizing component 6, the lateral shift of the compression locking bottom ring 521 can be avoided, thereby preventing the compression spring 522 from bending deformation.

[0036] like Figure 4 As shown, the extrusion locking assembly 52 is provided on both sides below the synchronous lifting plate 512 and distributed on both sides of the stamping slider 201. It can form a symmetrical extrusion locking structure on both sides of the stamping slider 201, which can increase the stability of extrusion when the extrusion of aluminum alloy sheet is completed.

[0037] The opposing stabilizing component 6 includes a positioning rail 601, a compression spring 602, and a synchronous lifting frame 603. The positioning rail 601 is vertically positioned at the bottom of the synchronous lifting plate 512. A guide groove is provided on the positioning rail 601 along its length. The compression spring 602 is located inside the guide groove of the positioning rail 601. One end of the synchronous lifting frame 603 is slidably installed in the guide groove of the positioning rail 601 and connected to the compression spring 602. The other end is connected to the edge of the compression locking bottom ring 521.

[0038] Among them, the opposing stabilizing components 6 are provided at the four edges of the compression locking bottom ring 521, so that the four opposing stabilizing components 6 form a four-way opposing compression on the compression locking bottom ring 521, which helps to stabilize the compression locking bottom ring 521.

[0039] The compression locking bottom ring 521 includes a cross connecting frame and a compression ring plate disposed at the bottom end of the cross connecting frame. The synchronous lifting frame 603 is connected to the four corners of the cross connecting frame respectively, so that the opposing stabilizing component 6 can form opposing compression on the cross connecting frame, thereby forming an opposing stabilizing structure between the cross connecting frame of the compression locking bottom ring 521 and the synchronous lifting plate 512.

[0040] The bottom end of the extrusion ring plate is provided with a soft pad ring to prevent hard friction.

[0041] The synchronous lifting assembly 51 also includes limiting shafts 511. The four limiting shafts 511 are distributed in a group on the four sides of the stamping base bed 1, and the four limiting shafts 511 pass through the four corners of the synchronous lifting plate 512, so that the four limiting shafts 511 can play a stable guiding and limiting role in the lifting of the synchronous lifting plate 512 and the stamping slide block 201.

[0042] The stamping assembly 2 also includes a base base 202 and a stamping drive assembly 203. The base base 202 is an L-shaped base. The stamping drive assembly 203 is located at the end of the vertical plate of the base base 202. The stamping drive assembly 203 is a hydraulic cylinder structure, which will not be described in detail here. The stamping slider 201 is located on the output end of the stamping drive assembly 203, so that the stamping drive assembly 203 can drive the stamping slider 201 and the synchronous lifting plate 512 to move up and down along the limiting vertical shaft 511 to stamp the aluminum alloy profile placed on the stamping base bed 1 directly below the stamping slider 201.

[0043] The stamping base 1 has shielding seats 7 on both sides, and the shielding seats 7 have slots that fit against the top surface of the stamping base 1. The slots of the two shielding seats 7 are positioned opposite each other. Through the slots of the two shielding seats 7 facing each other, the aluminum alloy sheet can be fitted into the stamping base 1 and positioned by sliding it against the two slots. The slots of the shielding seats 7 restrict the sides of the aluminum alloy sheet. The top locking mechanism 4 includes an insertion locking member 41 and a pressing connector 42. The insertion locking member 41 includes a locking bracket 411. Multiple locking brackets 411 are arranged in a parallel group. Multiple locking brackets 411 extend vertically through the shielding side seat 7, with the bottom of the locking bracket 411 located in the slot of the shielding side seat 7. The pressing connector 42 is located at the end of the locking bracket 411 and is located below one side of the synchronous lifting plate 512. This allows the synchronous lifting plate 512 to press against the pressing connector 42 when it moves down, thus further pressing against the locking bracket 411. This results in the locking bracket 411 being subjected to downward and progressively increasing pressing force, which helps the locking bracket 411 to better press and lock the edge of the aluminum alloy plate inserted into the shielding side seat 7.

[0044] The locking bracket 411 includes a slide rod that is vertically slidably mounted on the shielding side seat 7 and an extrusion block located at the bottom of the slide rod. The side of the extrusion block facing the stamping base 1 has an arc edge, and the slot shape of the shielding side seat 7 is as follows: Figure 6 As shown, the pressing block of the locking stand 411 is set to fit against the inner wall of the slot, so that the pressing block can move up and down under the guidance of the slot, ensuring the stability of the locking stand 411 when it moves up and down.

[0045] Furthermore, the top-level locking mechanism 4 also includes a return spring 412. The return spring 412 is arranged around the outside of the slide rod of the locking stand 411, and one end of the return spring 412 is connected to the top wall of the blocking side seat 7, and the other end is connected to the end of the slide rod of the locking stand 411. When the slide rod of the locking stand 411 moves upward, the return spring 412 will act on the slide rod of the locking stand 411, so that the slide rod maintains the downward trend. When the aluminum alloy sheet slides through the top surface of the stamping base 1 and the aluminum alloy sheet... When the aluminum alloy plate is inserted into the slot of the shielding side seat 7, it will press against the arc edge of the pressing block of the locking stand 411, thereby pressing the sliding rod part of the locking stand 411 upward. At this time, under the action of the return spring 412, the sliding rod continues to move downward and presses against the aluminum alloy plate through the pressing block, forming a lock on the aluminum alloy plate in the slot of the shielding side seat 7. The return spring 412 provides a downward force on the locking stand 411, helping the locking stand 411 to press against the aluminum alloy plate in the slot of the shielding side seat 7 as soon as possible.

[0046] The extrusion connector 42 includes a top plate 421, a telescopic spring 422, and a through-plate shaft 423. The top plate 421 is located at the top of multiple locking supports 411, and a through slot is formed on the top plate 421. The through-plate shaft 423 is located at the lower end of the synchronous lifting plate 512, and the bottom end of the through-plate shaft 423 passes through the through slot of the top plate 421. The telescopic spring 422 is located between the top plate 421 and the synchronous lifting plate 512, and the telescopic spring 422 surrounds the outside of the through-plate shaft 423. Figure 8 As shown, the through-plate shaft 423 is a telescopic shaft. The through-plate shaft 423 is inside the telescopic spring 422 to prevent the telescopic spring 422 from bending. When the through-plate shaft 423 passes through the through groove and continues to move downward, it will squeeze the blocking side seat 7. At this time, the through-plate shaft 423 retracts, thereby avoiding hard contact between the through-plate shaft 423 and the blocking side seat 7.

[0047] Among them, such as Figure 4 As shown, the lower ends of both sides of the synchronous lifting plate 512 are provided with through-plate shafts 423, and the through-plate shafts 423 on both sides correspond to the locking brackets 411 and the load-bearing top plate 421 on the two blocking side seats 7, respectively. The through slots on the load-bearing top plate 421 correspond one-to-one with the through-plate shafts 423, as shown. Figure 8As shown, multiple through-plate shafts 423 and telescopic springs 422 are arranged in parallel above the load-bearing top plate 421. The multiple through-plate shafts 423 and multiple locking brackets 411 are staggered on the upper and lower sides of the load-bearing top plate 421. Simultaneously, multiple telescopic springs 422 and return springs 412 are also staggered on the upper and lower sides of the load-bearing top plate 421. When the synchronous lifting plate 512 moves downward, the multiple through-plate shafts 423 move downward within the slots of the load-bearing top plate 421. At this time, the telescopic springs 422 on the outer side of the multiple through-plate shafts 423 are compressed, forming multi-point compression of the load-bearing top plate 421. Simultaneously, the multiple locking brackets 411 below the load-bearing top plate 421, under the action of the return springs 412, utilize the locking brackets 412 to... The bottom extrusion block presses the aluminum alloy sheet onto the stamping base 1. Due to the staggered distribution of the telescopic springs 422 and return springs 412, a uniform force can be formed on the locking frame 411 and the top plate 421. This allows multiple locking frames 411 to act evenly on the aluminum alloy sheet on the stamping base 1, forming a stable and uniform extrusion lock on the edge of the aluminum alloy sheet. At the same time, since the telescopic springs 422 and return springs 412 have a certain degree of elasticity, when the aluminum alloy sheet is stamped and extends and shifts and acts on the locking frame 411, the impact on the locking frame 411 and the top plate 421 can be reduced through the transition and buffering of the telescopic springs 422 and return springs 412.

[0048] After the aluminum alloy sheet is inserted into the slot of the shielding side seat 7, the side of the aluminum alloy sheet can be shielded by the shielding side seat 7. The synchronous locking structure 5 is positioned by pressing the center position of the aluminum alloy sheet from top to bottom, and the top locking mechanism 4 is positioned by pressing the edge position of the aluminum alloy sheet from top to bottom. Through the cooperation of the synchronous locking structure 5 and the top locking mechanism 4 during the downward movement of the synchronous lifting plate 512, the aluminum alloy sheet can be subjected to uniform force from top to bottom during the stamping process and the position of the aluminum alloy sheet on the stamping base bed 1 can be locked. In this locked state, the extension and displacement of the aluminum alloy sheet will not impact the locking structure such as the synchronous locking structure 5 and the top locking mechanism 4, reducing the impact on the locking structure and thus extending the service life of the synchronous locking structure 5 and the top locking mechanism 4.

[0049] Working principle: The aluminum alloy sheet is inserted between the slots of the two blocking edge seats 7, with the top surface of the stamping base 1 in contact with the sheet. During insertion, the aluminum alloy sheet moves forward and presses against the arc-shaped edge of the bottom pressing block of the locking stand 411, thereby pressing the locking stand 411 upward. Under the action of the return spring 412, the locking stand 411 is pressed above the edge of the aluminum alloy sheet located in the slot of the blocking edge seat 7, thus forming a compression on the edge of the aluminum alloy sheet. The blocking edge seat 7 blocks the edge of the aluminum alloy sheet. At this time, the stamping drive assembly 203 is activated to drive the stamping slider 201 and the synchronous lifting plate 512 to move downward and stamp the aluminum alloy sheet. During the process, as the synchronous lifting plate 512 descends... Multiple through-plate shafts 423 on both sides of the synchronous lifting plate 512 will move downwards into multiple through-slots in the force-bearing top plate 421. At this time, the telescopic springs 422 on the outside of the through-plate shafts 423 will be compressed, forming multi-point compression of the force-bearing top plate 421. Multiple locking brackets 411 are connected below the force-bearing top plate 421. At this time, under the action of the staggered telescopic springs 422 and return springs 412, the bottom ends of the multiple locking brackets 411 will further act on the aluminum alloy sheet on the stamping base bed 1, forming multi-point, uniform and stable compression and locking of the two sides of the aluminum alloy sheet. As the telescopic springs 422 and return springs 412 descend with the synchronous lifting plate 512, The compression process is progressive, resulting in a progressive increase in the squeezing force of the locking bracket 411 on the aluminum alloy sheet. This means that the closer the stamping slider 201 and the synchronous lifting plate 512 are to the aluminum alloy sheet, the greater the squeezing and locking force on the edge of the sheet. Simultaneously, as the stamping slider 201 and the synchronous lifting plate 512 continue to move downwards, the squeezing locking bottom ring 521 will contact the aluminum alloy sheet. As the stamping slider 201 and the synchronous lifting plate 512 continue to move downwards, the squeezing locking bottom ring 521 will compress the squeezing spring 522. At the same time, the synchronous lifting brackets 603 at the four corners of the squeezing locking bottom ring 521 will compress the compression spring 602 within the positioning rail 601. This compression of the spring 602... The opposing force generated when the compression spring 522 and the compression spring 522 are compressed can compress the compression locking bottom ring 521 and the aluminum alloy sheet, so that the aluminum alloy sheet is attached to the top surface of the stamping base 1. The locking brackets 411 on the two blocking side seats 7 respectively compress the two sides of the aluminum alloy sheet. At the same time, the compression locking components 52 on both sides of the stamping slider 201 form a symmetrical compression lock on the middle part of the aluminum alloy sheet, thereby compressing and locking the entire aluminum alloy sheet from top to bottom in all directions. Unlike the ordinary edge locking structure, this top-down compression locking structure can avoid the impact on the locking structure when the aluminum alloy sheet stretches and shifts during the stamping process, thereby extending the service life of the locking structure.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-precision hydraulic punching press for aluminum alloy profiles, characterized in that, include: A stamping base (1) is provided above the stamping base (1) for stamping. The stamping assembly (2) includes a stamping slide (201) with the stamping slide (201) facing the stamping base (1) below. An ejection assembly (3) for ejecting the stamped aluminum alloy profile is provided at the bottom inner side of the stamping base (1). A top locking mechanism (4) for inserting and locking the aluminum alloy profile is provided on the stamping base (1). Synchronous locking structure (5), the synchronous locking structure (5) includes synchronous lifting assembly (51) and extrusion locking assembly (52), the synchronous lifting assembly (51) includes synchronous lifting plate (512), the synchronous lifting plate (512) is disposed on stamping slide block (201), the extrusion locking assembly (52) is disposed below synchronous lifting plate (512) and extrusion locking assembly (52) is directly facing stamping base bed (1), one side plate of synchronous lifting plate (512) is located directly above top locking mechanism (4), and synchronous lifting plate (512) is connected to top locking mechanism (4), when synchronous lifting plate (512) descends, it acts on top locking mechanism (4); The compression locking assembly (52) includes a compression locking bottom ring (521), a compression spring (522), and a counter-stabilizing assembly (6). The compression locking bottom ring (521) is disposed below the synchronous lifting plate (512). The compression spring (522) is disposed between the compression locking bottom ring (521) and the synchronous lifting plate (512). The counter-stabilizing assembly (6) is disposed between the edge of the compression locking bottom ring (521) and the synchronous lifting plate (512). The counter-stabilizing assembly (6) forms a counter-tilting support and compression on the compression locking bottom ring (521). The stamping base (1) is provided with shielding side seats (7) on both sides, and the shielding side seats (7) are provided with slots that fit the top surface of the stamping base (1). The slots of the two shielding side seats (7) are corresponding to each other. The top locking mechanism (4) includes an insertion locking member (41) and a pressing connector (42). The insertion locking member (41) includes a locking stand (411). Multiple locking stands (411) are arranged in parallel as a group. Multiple locking stands (411) penetrate the shielding side seat (7) vertically, and the bottom end of the locking stand (411) is located in the slot of the shielding side seat (7). The pressing connector (42) is provided at the end of the locking stand (411), and the pressing connector (42) is located directly below one side of the synchronous lifting plate (512), so that when the synchronous lifting plate (512) moves down, it can press the pressing connector (42) and form a further pressing on the locking stand (411). The locking stand (411) includes a slide rod that is vertically slidably mounted on the shielding side seat (7) and an extrusion block set at the bottom of the slide rod. The side of the extrusion block facing the stamping base (1) is an arc edge. The top-level locking mechanism (4) also includes a return spring (412), which is arranged around the outside of the slide bar of the locking stand (411). One end of the return spring (412) is connected to the top wall of the shielding side seat (7), and the other end is connected to the end of the slide bar of the locking stand (411). When the slide bar of the locking stand (411) moves upward, the return spring (412) acts on the slide bar of the locking stand (411), so that the slide bar maintains the downward trend, so as to press the upper surface of the aluminum alloy profile by the extrusion block, and form a lock on the aluminum alloy profile in the slot of the shielding side seat (7) before the stamping slider (201) moves downward. The extrusion connector (42) includes a top plate (421), a telescopic spring (422), and a through-plate shaft (423). The top plate (421) is located at the top of multiple locking stands (411). A through-slot is provided on the top plate (421). The through-plate shaft (423) is located at the lower end of the synchronous lifting plate (512), and the bottom end of the through-plate shaft (423) passes through the through-slot of the top plate (421). The telescopic spring (422) is located between the top plate (421) and the synchronous lifting plate (512), and the telescopic spring (422) surrounds the outside of the through-plate shaft (423). Among them, multiple through-plate shafts (423) and telescopic springs (422) are distributed in parallel above the force-bearing top plate (421), and multiple through-plate shafts (423) and multiple locking brackets (411) are staggered on the upper and lower sides of the force-bearing top plate (421). At the same time, multiple telescopic springs (422) and return springs (412) are also staggered on the upper and lower sides of the force-bearing top plate (421). The multiple staggered telescopic springs (422) and return springs (412) form a uniform force on the locking brackets (411) and the force-bearing top plate (421). When the synchronous lifting plate (512) moves down, it squeezes the through plate shaft (423) and the telescopic spring (422) and forms further compression on the locking frame (411) and the force-bearing top plate (421), so that the force-bearing top plate (421) is subjected to downward and progressively increasing compressive force; The opposing stabilizing component (6) includes a positioning rail (601), a compression spring (602), and a synchronous lifting frame (603). The positioning rail (601) is vertically arranged at the bottom of the synchronous lifting plate (512). A guide groove is provided on the positioning rail (601) along the length of the positioning rail (601). The compression spring (602) is arranged inside the guide groove of the positioning rail (601). One end of the synchronous lifting frame (603) is slidably installed in the guide groove of the positioning rail (601) and connected to the compression spring (602). The other end is connected to the edge of the compression locking bottom ring (521). The opposing stabilizing components (6) are provided at the four edges of the compression locking bottom ring (521), so that the four opposing stabilizing components (6) form a four-way opposing compression of the compression locking bottom ring (521); The compression locking bottom ring (521) includes a cross connecting frame and a compression ring plate disposed at the bottom end of the cross connecting frame, wherein the opposing stabilizing components (6) are respectively connected to the four corners of the cross connecting frame; The bottom end of the extrusion ring plate is provided with a soft pad ring to prevent hard friction.

2. The high-precision aluminum alloy profile hydraulic punching press according to claim 1, characterized in that, The synchronous lifting assembly (51) also includes a limiting vertical shaft (511), which is distributed in groups of four on the four sides of the stamping base (1), and the four limiting vertical shafts (511) pass through the four corners of the synchronous lifting plate (512).

3. The high-precision aluminum alloy profile hydraulic punching press according to claim 1, characterized in that, The stamping assembly (2) further includes a base base (202) and a stamping drive assembly (203). The base base (202) is an L-shaped base. The stamping drive assembly (203) is located at the end of the base base (202). The stamping slider (201) is located at the output end of the stamping drive assembly (203).

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