Two-way hedging guide sleeve assembly based on light-weight accessory mold

Abstract

The application discloses a bidirectional counter-impact guide sleeve assembly based on a lightened accessory mold, relates to the technical field of mold guide sleeves, and is an optimization and improvement of the existing structure based on the use principle of the guide sleeve / guide column in the mold, and the specific scheme is as follows: a bidirectional counter-impact structure is arranged by additionally arranging a first-order assembly and a second-order assembly, two groups of opposite forces are included in the movement process, the force in the vertical direction is switched into the force in the rotating direction, then the overall direction force is switched into the horizontal force acting on the guide sleeve, and the purpose is to be applicable to the stamping requirement of small stroke, reduce the movement "bearing force" of the guide column / guide sleeve, maintain the center stability in the overall structure to stabilize the movement precision of the mold, and avoid mechanical friction damage of the guide column / guide sleeve under long-term movement.

Description

Technical Field

[0001] This invention relates to the field of mold guide sleeve technology, and more specifically to a bidirectional counter-punching guide sleeve assembly based on lightweight component molds. Background Technology

[0002] The guide bushing in a mold is a mold accessory that works in conjunction with the guide pillar to guide the mold and ensure the accuracy of the mold movement. For the guide bushing in a stamping mold, in order to reduce the contact area with the ejector pin, extend its service life, and reduce the pressure and wear of the cavity, the current guide bushing has an added buffer effect, which is mainly achieved by a strong spring.

[0003] It should be noted that with the repeated strokes of the mold, the wear between the guide bushing and the guide pillar increases, which in turn leads to insufficient neutrality between the guide pillar and the guide bushing. This directly reduces the accuracy of the mold's movement and, in severe cases, causes the internal structure of the mold, such as the punch / cavity, to deviate from its original preset position.

[0004] Currently, guide bushings are commonly fixed to the lower die plate, while guide pillars are commonly fixed to the upper die plate. This can be understood as the guide bushing being in a stationary state and the guide pillar being in a moving state. It should be noted that for the production molds of lightweight parts, because the parts are thin and the effective stroke in the mold is small, when the upper die plate approaches the lower die plate, in order to maintain the stability of stamping, the effective stroke needs to be completed in a short time. If the guide bushing / guide pillar is in a single motion form, there is an additional ineffective stroke between the upper and lower die plates. The ineffective stroke is mainly "borne" by the guide pillar / guide bushing, the punch inside the mold, and other structures, thus aggravating the damage to the guide pillar / guide bushing.

[0005] In view of the above-mentioned technical problems, this application proposes a solution. Summary of the Invention

[0006] The purpose of this invention is to provide a bidirectional counter-punching guide sleeve assembly based on lightweight component molds. The guide sleeves currently used in lightweight component production molds suffer from significant mechanical wear during operation, which leads to insufficient neutrality between the guide post and the guide sleeve, affecting the mold's movement accuracy and further exacerbating the wear between the guide post and the guide sleeve.

[0007] The objective of this invention can be achieved through the following technical solution: a bidirectional punching guide sleeve assembly based on a lightweight component mold, comprising a guide post, a guide sleeve and a connecting spring, wherein the guide post is slidably connected in the vertical direction inside the guide sleeve and extends into the interior of the guide sleeve, and the connecting spring is disposed at the middle position between the guide post and the guide sleeve.

[0008] The guide sleeve has a cavity inside, and a second-order component and two first-order components are arranged inside the cavity. The two first-order components are located on the upper and lower sides of the second-order component, respectively. A mounting base is installed at the lower end of the guide sleeve, and a hydraulic cylinder is installed inside the mounting base.

[0009] The second-order component includes an upper directional block, a lower directional block, a connecting ring, and a directional spring; the first-order component includes an upper connecting slider, a slanted spring, a lower connecting slider, and a mating sleeve.

[0010] The top end of the hydraulic cylinder output shaft is fixedly connected to the center point of the lower connecting slider in the first-order assembly located on the lower side. The lower end of the guide post is fixedly connected to the center point of the connecting slider in the first-order assembly located on the lower side. A mating sleeve corresponding to the upper connecting slider is installed at the center point of the lower connecting slider. The inclined spring is installed at the outer edge of the outer wall of the lower connecting slider and the upper connecting slider, which are close to each other. The inclined spring is arranged in a ring array along the center point of the mating sleeve.

[0011] The configuration is further defined as follows: the inclined springs in both first-order components are inclined and curved in the vertical direction, and the inclination direction and curvature of each inclined spring are equal.

[0012] Further configuration: the outer diameters of the lower connecting slider and the upper connecting slider are equal to the diameter of the inner wall of the cavity; the outer diameters of the upper directional block and the lower directional block are smaller than the diameter of the inner wall of the cavity; and side ball bearings are provided on the lower connecting slider, the upper connecting slider, and the directional spring.

[0013] The configuration is further defined as follows: the two upper connecting sliders are fixedly connected to the center points of the upper and lower directional blocks.

[0014] The configuration is further defined as follows: the connecting ring is located at the position of the lower directional block, and the connecting ring and the lower directional block are rotatably connected; the lower end of the directional spring is mounted on the connecting ring, and the upper end of the directional spring is mounted on the upper directional block.

[0015] Further configured as follows: a plurality of vertically arranged docking top rods are installed on the lower directional block. The docking top rods are arranged in a circular array along the center point of the lower directional block, and the lengths of the plurality of docking top rods are equal. A differential semi-annular groove corresponding to the docking top rod is opened on the lower surface of the lower directional block. The top end of the docking top rod is slidably connected to the annular contour of the upper directional block in the differential semi-annular groove. The inner wall of the differential semi-annular groove is provided with a position difference in the vertical direction.

[0016] A further configuration is provided: a compensation gap is provided between the lower connecting slider and the bottom end of the cavity inner wall in the first-order component located on the lower side.

[0017] Further configured as follows: During use, the guide post and the guide sleeve of the bidirectional counter-punching guide sleeve assembly are respectively installed at the upper and lower mold plate positions in the mold, and the following stages are set according to the mold operation process:

[0018] Phase 1: Set the bidirectional punching guide sleeve assembly in the mold parting state as the initial stage. In the initial stage, the first-stage assembly and the second-stage assembly are in their initial positions. Specifically, the lower connecting slider in the upper first-stage assembly and the upper inner wall of the cavity, and the lower connecting slider in the lower first-stage assembly and the bottom inner wall of the cavity are all on the same horizontal plane; the second-stage assembly is in a stretched state; and the compensation gap between the lower first-stage assembly and the bottom inner wall of the cavity is at its minimum value.

[0019] Phase 2: When the mold is in the closed state, as the guide pillar moves downward and approaches the guide sleeve, the hydraulic cylinder simultaneously provides an upward thrust to the first-stage component located on the lower side, so that a compensation gap is formed between the lower connecting slider in the first-stage component located on the lower side and the inner wall of the bottom end of the cavity.

[0020] Phase 3: During Phase 2, the inclined springs in the upper and lower connecting sliders are compressed, causing the upper connecting slider to rotate at a small angle along the bending direction of the inclined springs. The lower directional block is subjected to vertical upward pressure through the first-order component located on the lower side, and the upper directional block is subjected to vertical downward pressure through the first-order component located on the upper side. The upper and lower directional blocks rotate correspondingly through the small-angle rotation of the upper connecting slider, causing the directional springs to be subjected to pressure in both the upper and lower directions and to bend and contact the inner wall of the cavity.

[0021] Phase 4: When the two first-order components are simultaneously compressed and squeeze the second-order component, the hydraulic cylinder drives the lower first-order component to reset, so that the compensation gap is restored to the minimum value.

[0022] The present invention has the following beneficial effects:

[0023] This invention is based on the operating principle of the guide sleeve / guide pillar used in existing molds and optimizes and improves it. Specifically, it includes adding a first-order component and a second-order component. The first-order component and the second-order component can also perform secondary movements when the guide pillar / guide sleeve moves. The movement process is determined by the overall movement stroke of the mold. In essence, the first-order component and the second-order component "receive" the secondary movements generated by the movement of the guide pillar / guide sleeve and mainly transmit the force generated by the secondary movements to the second-order component. It can be understood that during the long-term movement of the overall structure, the secondary movements in the second-order component and the first-order component are used as the main means of buffering and protection, avoiding the problem of center deviation between the guide pillar / guide sleeve due to mechanical friction damage, which directly affects the movement accuracy of the mold.

[0024] In summary, the secondary motion involves two sets of opposing forces, which are then concentrated on the second-order component. The vertical force in the first-order component is converted into a rotational force, which is then synchronously supplied to the second-order component. The directional spring contacts the inner wall of the guide sleeve, making the guide sleeve and the second-order component the main structures that directly bear the force. During this process, the upper and lower directional blocks in the second-order component move again. Specifically, the impact force between the guide post and the guide sleeve is reduced through a multi-stage mitigation and degradation process. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the bidirectional punching guide sleeve assembly based on lightweight component mold proposed in this invention;

[0027] Figure 2 In the bidirectional punching guide sleeve assembly based on lightweight component mold proposed in this invention Figure 1 Cross-sectional view;

[0028] Figure 3 In the bidirectional punching guide sleeve assembly based on lightweight component mold proposed in this invention Figure 1 A sectional view;

[0029] Figure 4 In the bidirectional punching guide sleeve assembly based on lightweight component mold proposed in this invention Figure 2 A split diagram;

[0030] Figure 5 This is a split view of the first-order and second-order components in the bidirectional punching guide sleeve assembly based on lightweight component mold proposed in this invention.

[0031] Figure 6 This is a partial cross-sectional view of the second-order component in the bidirectional counter-punching guide sleeve assembly based on lightweight component mold proposed in this invention.

[0032] In the diagram: 1. Guide post; 2. Guide sleeve; 3. Mounting base; 4. Connecting spring; 5. First-stage assembly; 501. Upper connecting slider; 502. Side ball bearing; 503. Inclined spring; 504. Abutment sleeve; 505. Lower connecting slider; 6. Second-stage assembly; 601. Upper directional block; 602. Directional spring; 603. Connecting ring; 604. Lower directional block; 605. Differential semi-annular groove; 606. Abutment push rod; 7. Hydraulic cylinder. Detailed Implementation

[0033] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. 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. Example 1

[0034] For guide bushings / guide pillars used in part molds with short strokes, mechanical friction damage during long-term operation can lead to insufficient neutrality between the guide pillar and the guide bushing. This directly reduces the mold's motion accuracy and increases the burden on the guide pillar / guide bushing, internal mold punches, and other structures, exacerbating the damage. A solution is proposed to address this issue.

[0035] Reference Figures 1-6 In this embodiment, the bidirectional punching guide sleeve assembly based on lightweight component mold includes a guide post 1, a guide sleeve 2 and a connecting spring 4. The guide post 1 is slidably connected in the vertical direction inside the guide sleeve 2, and the guide post 1 extends to the inside of the guide sleeve 2. The connecting spring 4 is located at the middle position between the guide post 1 and the guide sleeve 2.

[0036] The guide sleeve 2 has a cavity inside, and a second-order component 6 and two first-order components 5 are arranged inside the cavity. The two first-order components 5 are located on the upper and lower sides of the second-order component 6, respectively. A mounting base 3 is installed at the lower end of the guide sleeve 2, and a hydraulic cylinder 7 is installed inside the mounting base 3.

[0037] The second-order component 6 includes an upper directional block 601, a lower directional block 604, a connecting ring 603, and a directional spring 602. The first-order component 5 includes an upper connecting slider 501, a slanted spring 503, a lower connecting slider 505, and a mating sleeve 504.

[0038] The top end of the output shaft of the hydraulic cylinder 7 is fixedly connected to the center point of the lower connecting slider 505 in the first-stage component 5 located on the lower side. The lower end of the guide post 1 is fixedly connected to the center point of the connecting slider 505 in the first-stage component 5 located on the lower side. A mating sleeve 504 corresponding to the upper connecting slider 501 is installed at the center point of the lower connecting slider 505. An inclined spring 503 is installed at the outer edge of the outer wall of the lower connecting slider 505 and the upper connecting slider 501, and the inclined spring 503 is arranged in a ring array along the center point of the mating sleeve 504. The two upper connecting sliders 501 are fixedly connected to the center points of the upper directional block 601 and the lower directional block 604.

[0039] Basic principle: Refer to Figure 1 and Figure 2 The technical solution proposed in this embodiment is based on the existing operating structure of the guide sleeve / guide post, including a guide post 1, a guide sleeve 2, and a matching connecting spring 4. The difference is that the internal structure of the guide sleeve 2 is optimized by adding a first-order component 5 and a second-order component 6, as shown in the following figure. Figure 4 and Figure 5 In general, when the mold is closed, the guide post 1 and the guide sleeve 2 approach each other, and the connecting spring 4 is used as a direct buffer protection means. However, in this embodiment, the guide post 1 and the hydraulic cylinder 7 respectively provide pressure to the two first-order components 5.

[0040] Specifically, the first-stage component 5 at the upper level directly bears the downward force of the guide post 1, while the first-stage component 5 at the lower level generates an upward force through the hydraulic cylinder 7. Ultimately, the forces borne by both first-stage components 5 are transferred to the second-stage component 6. It should be noted that the first-stage component 5 and the second-stage component 6 can undergo secondary movement under the simultaneous action of the guide post 1 and the hydraulic cylinder 7. This can be understood as the impact force that the overall structure should "bear" being "shared and distributed" through the first-stage component 5 and the second-stage component 6 in the form of secondary movement. Thus, the guide post 1, the guide sleeve 2, and the connecting spring 4 do not serve as the sole buffer protection structure, thereby reducing mechanical friction damage between the guide post 1 and the guide sleeve 2 and avoiding insufficient neutrality between them, which could affect the accuracy of the mold movement. Example 2

[0041] This embodiment explains the technical solution in Embodiment 1:

[0042] The inclined springs 503 in the two first-order components 5 are all inclined and curved in the vertical direction, and the inclination direction and curvature of each inclined spring 503 are equal. The outer diameter of the upper directional block 601 and the lower directional block 604 is smaller than the diameter of the inner wall of the cavity. Side ball bearings 502 are provided on the lower connecting slider 505, the upper connecting slider 501, and the directional spring 602.

[0043] The connecting ring 603 is located on the lower directional block 604, and the connecting ring 603 and the lower directional block 604 are rotatably connected. The lower end of the directional spring 602 is mounted on the connecting ring 603, and the upper end of the directional spring 602 is mounted on the upper directional block 601.

[0044] Multiple vertically arranged docking rods 606 are installed on the lower directional block 604. The docking rods 606 are arranged in a circular array along the center point of the lower directional block 604, and the lengths of the multiple docking rods 606 are equal. A differential semi-annular groove 605 corresponding to the docking rods 606 is opened on the lower surface of the lower directional block 604. The top of the docking rod 606 is slidably connected in the differential semi-annular groove 605 along the annular contour of the lower directional block 604. The inner wall of the differential semi-annular groove 605 is provided with a position difference in the vertical direction. A compensation gap is provided between the lower connecting slider 505 in the first-order component 5 located on the lower side and the bottom end of the inner wall of the cavity.

[0045] Solution Description

[0046] Option 1: Refer to Figure 5 It should be noted that: based on the first-order component 5 in the upper position, the upper connecting slider 501 can move up and down through the guide post 1, and the two are rotatably connected. Similarly, the lower connecting slider 501 in the first-order component 5 in the lower position is rotatably connected to the transmission shaft of the hydraulic cylinder 7. The purpose is that when the two first-order components 5 are subjected to forces in two directions, the lower connecting slider 505 only maintains the vertical movement process and does not deflect at an angle. However, when the upper connecting slider 501 and the lower connecting slider 505 approach each other, the inclined spring 503 is compressed and deformed. In order to meet the deformation process, it is necessary to ensure that either the upper connecting slider 501 or the lower connecting slider 505 can rotate. In this embodiment, the upper connecting slider 501 needs to deflect at a small angle. Thus, in the movement process of the first-order component 5, in addition to the buffering effect of the connecting spring 4, the deformation process of the inclined spring 503 plays a second-stage buffering protection role.

[0047] Option 2: As with Option 1, when the upper connecting slider 501 deflects at a small angle, it drives the upper guide block 601 and the lower guide block 604 to deflect respectively. The deflection direction of the upper guide block 601 and the lower guide block 604 is limited by restricting the bending angle of the inclined spring 503. (Refer to...) Figure 6In this case, the tilt direction and bending arc of the inclined springs 503 in the two first-order components 5 are equal. Therefore, the first-order component 5 at the upper position drives the upper directional block 601 to rotate counterclockwise, and conversely, the first-order component 5 at the lower position drives the lower directional block 604 to rotate clockwise. This ultimately forms the motion process between the upper directional block 601 and the lower directional block 604. Specifically, the docking top rod 606 moves in a direction within the differential semi-annular groove 605, and due to the height restriction in the differential semi-annular groove 605, the upper directional block 601 and the lower directional block 604 can slowly approach each other. This motion, combined with the position of the directional spring 602, compresses the directional spring 602, causing it to contact the inner wall of the cavity inside the guide sleeve 2. This creates a force based on the vertical direction, a portion of which is first converted into a force in the rotational direction, then the force in the rotational direction is converted into a force in the vertical direction, and finally the force in the vertical direction is converted into a force in the horizontal direction. Through multiple conversion processes, the force borne by the overall structure is gradually reduced, and ultimately still borne by the guide sleeve 2, thus avoiding significant mechanical friction damage to the guide post 1 / guide sleeve 2.

[0048] Option 3: In conjunction with Example 2, in order to maintain the motion stability of the first-order component, it is necessary to maintain the matching between its outer diameter and the inner wall of the cavity. However, the first-order component 5 is not a direct force-bearing structure, but depends on the motion mode of the second-order component 6. In order to ensure the motion stability of the second-order component 6, and to use the directional spring 602 as a key structure for dispersing force, it is necessary to limit the outer diameter of the upper directional block 601 and the lower directional block 604 to be smaller than the inner wall of the cavity. Example 3

[0049] The usage process is explained in conjunction with Examples 1 and 2:

[0050] During use, the bidirectional counter-clamping guide sleeve assembly has the guide post 1 and the guide sleeve 2 installed at the upper and lower mold plates respectively, and the following stages are set according to the mold's operation process:

[0051] Phase 1: The bidirectional punching guide bushing assembly with the mold in the parting state is set as the initial stage. In the initial stage, the first-stage assembly 5 and the second-stage assembly 6 are in the initial position. Specifically, the lower connecting slider 505 in the upper first-stage assembly 5 and the upper inner wall of the cavity, and the lower connecting slider 505 in the lower first-stage assembly 5 and the bottom inner wall of the cavity are all on the same horizontal plane; the second-stage assembly 6 is in a stretched state; and the compensation gap between the lower first-stage assembly 5 and the bottom inner wall of the cavity is at its minimum value.

[0052] Phase 2: When the mold is in the closed state, as the guide post 1 moves downward and approaches the guide sleeve 2, the hydraulic cylinder 7 simultaneously provides an upward thrust to the first-stage component 5 located on the lower side, so that a compensation gap is formed between the lower connecting slider 505 in the first-stage component 5 located on the lower side and the inner wall of the bottom end of the cavity.

[0053] Phase 3: During Phase 2, the inclined spring 503 in the upper connecting slider 501 and the lower connecting slider 505 is squeezed and causes the upper connecting slider 501 to rotate at a small angle along the bending direction of the inclined spring 503. The lower directional block 604 is subjected to vertical upward pressure through the first-stage component 5 located on the lower side, and the upper directional block 601 is subjected to vertical downward pressure through the first-stage component 5 located on the upper side. The upper directional block 601 and the lower directional block 604 rotate correspondingly through the small-angle rotation of the upper connecting slider 501, so that the directional spring 602 is subjected to pressure in both the upper and lower directions and bends and contacts the inner wall of the cavity.

[0054] Phase 4: When the two first-stage components 5 are simultaneously pressed and squeeze the second-stage component 6, the hydraulic cylinder 7 drives the lower first-stage component 5 to reset, so that the compensation gap is restored to the minimum value.

[0055] Solution Description: This embodiment combines the technical content of Embodiment 1 and Embodiment 2 for explanation. In actual operation, the downward vertical force borne by the first-order component 5 is generated by the movement of the mold. For example, in stage 2, under the synchronous state of stage 1, the hydraulic cylinder 7 needs to provide upward pressure, which will be described in detail below:

[0056] In stage one, or as understood in normal condition, the first-stage component 5 located on the lower side is always located at the bottom of the cavity. Only when the mold begins to close, the hydraulic cylinder 7 needs to generate an upward force to create a certain space compensation gap between the first-stage component 5 and the bottom of the cavity. The height of the compensation gap is equal to the stroke of the hydraulic cylinder 7. This stroke can be determined according to the production requirements of the parts, specifically the difference in deformation height during the stamping of the parts.

[0057] Therefore, during the actual operation, the movement mode of the hydraulic cylinder 7 is determined according to the movement stroke of the mold. Specifically, when the upper and lower mold plates reach the pre-stamping stroke position, the hydraulic cylinder 7 starts quickly, causing the first-stage component 5 located on the lower side to move upward. Its movement stroke should be less than the deformation height difference.

[0058] As the mold continues to move from the pre-stamping stroke position, the hydraulic cylinder 7 slowly resets. This can be understood as the lower first-stage component 5 losing its upward pressure until it is completely in contact with the bottom of the cavity. Then, combined with the contents of stages three and four above, the secondary motion formed by the movement of the first-stage component 5 on the second-stage component 6, the movement between the two first-stage components 5, and the movement of the second-stage component 6 itself, gradually disperses the impact force generated when the mold closes. Finally, the guide sleeve 2 bears the force, avoiding large mechanical friction damage between the guide post / guide sleeve.

[0059] In summary: Based on the operating principle of guide sleeves / guide pillars in molds, the existing structure is optimized and improved. The specific solution is to add a bidirectional counter-punching structure composed of first-order and second-order components. During its movement, it includes two sets of opposing forces, which switch from vertical force to rotational force, and then switch the overall force to a horizontal force acting on the guide sleeve. The purpose is to make it suitable for short-stroke stamping requirements, reduce the "load" of the guide pillars / guide sleeves, maintain the central stability of the overall structure to stabilize the motion accuracy of the mold, and avoid mechanical friction damage to the guide pillars / guide sleeves under long-term operation.

[0060] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

[0061] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0062] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A bidirectional punching guide sleeve assembly based on a lightweight component mold, comprising a guide post (1), a guide sleeve (2), and a connecting spring (4), characterized in that, The guide post (1) is slidably connected in the vertical direction inside the guide sleeve (2), and the guide post (1) extends to the inside of the guide sleeve (2). The connecting spring (4) is located at the middle position between the guide post (1) and the guide sleeve (2). The guide sleeve (2) has a cavity inside, and a second-order component (6) and two first-order components (5) are arranged inside the cavity. The two first-order components (5) are located on the upper and lower sides of the second-order component (6), respectively. A mounting base (3) is installed at the lower end of the guide sleeve (2), and a hydraulic cylinder (7) is installed inside the mounting base (3). The second-order component (6) includes an upper directional block (601), a lower directional block (604), a connecting ring (603), and a directional spring (602). The first-order component (5) includes an upper connecting slider (501), a slanted spring (503), a lower connecting slider (505), and a mating sleeve (504). The top end of the output shaft of the hydraulic cylinder (7) is fixedly connected to the center point of the lower connecting slider (505) in the first-stage component (5) located on the lower side. The lower end of the guide post (1) is fixedly connected to the center point of the connecting slider (505) in the first-stage component (5) located on the lower side. A mating sleeve (504) corresponding to the upper connecting slider (501) is installed at the center point of the lower connecting slider (505). The inclined spring (503) is installed at the outer edge of the outer wall of the lower connecting slider (505) and the upper connecting slider (501) close to each other. The inclined spring (503) is arranged in a ring array along the center point of the mating sleeve (504). The outer diameters of the lower connecting slider (505) and the upper connecting slider (501) are equal to the diameter of the inner wall of the cavity. The outer diameters of the upper directional block (601) and the lower directional block (604) are smaller than the diameter of the inner wall of the cavity. Side ball bearings (502) are provided on the lower connecting slider (505), the upper connecting slider (501), and the directional spring (602). The two upper connecting sliders (501) are fixedly connected to the center points of the upper directional block (601) and the lower directional block (604). The connecting ring (603) is located on the lower directional block (604), and the connecting ring (603) and the lower directional block (604) are rotatably connected. The lower end of the directional spring (602) is mounted on the connecting ring (603), and the upper end of the directional spring (602) is mounted on the upper directional block (601). A plurality of vertically arranged docking rods (606) are installed on the lower directional block (604). The docking rods (606) are positioned along the lower directional block (604). 4) The center points are arranged in a ring array, and the lengths of the multiple docking top rods (606) are equal. The lower surface of the lower directional block (604) is provided with a corresponding semi-annular groove (605) for the docking top rod (606). The top end of the docking top rod (606) is slidably connected in the semi-annular groove (605) along the annular contour of the lower directional block (604). The inner wall of the semi-annular groove (605) is provided with a position difference in the vertical direction.

2. The bidirectional punching guide sleeve assembly based on lightweight component mold according to claim 1, characterized in that, The oblique springs (503) in the two first-order components (5) are both in an oblique curved arc shape in the vertical direction, and the oblique direction and curvature of each oblique spring (503) are equal.

3. The bidirectional punching guide sleeve assembly based on lightweight component mold according to claim 1, characterized in that, A compensation gap is provided between the lower connecting slider (505) of the first-order component (5) located on the lower side and the bottom end of the cavity inner wall.

4. The bidirectional punching guide sleeve assembly based on lightweight component mold according to any one of claims 1 to 3, characterized in that, During use, the bidirectional counter-punching guide sleeve assembly has the guide post (1) and the guide sleeve (2) installed at the upper and lower mold plates respectively, and the following stages are set according to the mold's operation process: Phase 1: Set the bidirectional punching guide sleeve assembly with the mold in the mold parting state as the initial stage. In the initial stage, the first-stage assembly (5) and the second-stage assembly (6) are in the initial position. Specifically, the lower connecting slider (505) in the upper first-stage assembly (5) and the upper inner wall of the cavity, and the lower connecting slider (505) in the lower first-stage assembly (5) and the bottom inner wall of the cavity are all on the same horizontal plane; the second-stage assembly (6) is in a stretched state; and the compensation gap between the lower first-stage assembly (5) and the bottom inner wall of the cavity is at the minimum value. Phase 2: When the mold is in the closed state, as the guide pillar (1) moves downward and approaches the guide sleeve (2), the hydraulic cylinder (7) simultaneously provides an upward thrust to the first-stage component (5) located on the lower side, so that a compensation gap is formed between the lower connecting slider (505) in the first-stage component (5) located on the lower side and the inner wall of the bottom end of the cavity. Phase 3: During Phase 2, the inclined springs (503) in the upper connecting slider (501) and the lower connecting slider (505) are squeezed and drive the upper connecting slider (501) to rotate at a small angle along the bending direction of the inclined springs (503). The lower directional block (604) is subjected to vertical upward pressure through the first-stage component (5) located on the lower side, and the upper directional block (601) is subjected to vertical downward pressure through the first-stage component (5) located on the upper side. The upper directional block (601) and the lower directional block (604) rotate correspondingly through the small angle rotation of the upper connecting slider (501), so that the directional spring (602) is subjected to pressure in both the upper and lower directions and bends and contacts the inner wall of the cavity. Phase 4: When the two first-order components (5) are simultaneously pressed and squeeze the second-order component (6), the hydraulic cylinder (7) drives the first-order component (5) located on the lower side to reset, so that the compensation gap is restored to the minimum value.

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