Multi-point anti-deformation stripping structure applied to top cover stamping process

Abstract

The invention relates to the technical field of top cover manufacturing, in particular to a multi-point anti-deformation stripping structure applied to a top cover stamping process, the multi-point anti-deformation stripping structure comprises a stripping frame of a concave structure, a double-layer limiting mechanism is arranged in the stripping frame, and a sub-frame assembly is arranged at the position, located on one side of the double-layer limiting mechanism, in the stripping frame; according to the invention, a composite stripping mode with a synergistic effect of multidirectional mechanical clamping, dynamic separation of the upper and lower molds and multi-point dynamic hammering is adopted, so that mold displacement in a demolding process is inhibited, demolding stability is ensured, demolding resistance and adsorption force can be eliminated, and residual stress in the upper and lower molds can be uniformly dispersed; the deformation risk after the top cover is formed is obviously reduced, and the top cover stripping efficiency is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of top cover manufacturing, in particular to a multi-point anti-deformation and anti-stripping structure used in a top cover stamping process. Background Art

[0002] Roof cover stamping is a key process in automobile body manufacturing, mainly used to form large covering parts such as body roof covers. The core process includes: mold stamping → demoulding and separation → finished product collection. In actual production, the roof cover demoulding stage often faces technical problems such as demoulding deformation.

[0003] For example, patent number CN218340864U is a stamping die demoulding device that uses a vertically sliding demoulding slider to force the stamping part to be ejected directly through the demoulding slider after bending. However, in actual operation, it only applies force through the vertical lifting mechanism, which cannot adapt to the complex working conditions of the coordinated movement of the upper and lower molds. It is easy for the mold to shift due to uneven force, causing part damage or demoulding failure. At the same time, it lacks a multi-directional dynamic stress release mechanism, and cannot effectively disperse the residual stress inside the top cover, which can easily increase the deformation rate of the workpiece after demoulding. Summary of the Invention

[0004] The purpose of the present invention is to adopt a composite demoulding method with the coordinated action of multi-directional mechanical clamping, dynamic separation of upper and lower molds and multi-point dynamic hammering, which not only suppresses the mold displacement during the demoulding process and ensures the demoulding stability, but also eliminates the demoulding resistance and adsorption force, and evenly disperses the residual stress inside the upper and lower molds, significantly reducing the risk of deformation of the top cover after molding, and effectively improving the top cover demoulding efficiency.

[0005] The object of the present invention can be achieved by the following technical solution: a multi-point anti-deformation stripping structure used in the top cover stamping process, comprising a stripping frame with a concave structure, a double-layer limiting mechanism provided inside the stripping frame, and a sub-frame assembly provided inside the stripping frame on one side of the double-layer limiting mechanism; Wherein, the double-layer limiting mechanism includes a transverse positioning frame, which is fixedly installed at one end of the stripping frame away from the opening, and a dual-axis motor is provided at the center of the transverse positioning frame, and the front and rear ends of the dual-axis motor are respectively fixedly installed with threaded rotating rods with opposite threaded structures, and the interior of the transverse positioning frame and the exteriors of the two groups of threaded rotating rods are respectively threadedly sleeved with threaded sleeve frames, and the upper and lower ends of each group of the threaded sleeve frames are respectively provided with clamping frames, and the opposite surfaces of the two groups of the clamping frames corresponding to the front and rear are provided with anti-slip grooves; The split frame assembly includes two groups of longitudinal positioning frames, which are respectively arranged at the upper and lower ends of the stripping frame on one side of the transverse positioning frame. The front and rear ends of the longitudinal positioning frames near the upper end are respectively slidably connected to the vertical grooves opened on the front and rear inner walls of the stripping frame.

[0006] Furthermore, the four groups of clamping frame ends slide respectively in the sliding grooves provided on the side surfaces of the corresponding longitudinal positioning frames. A motor 1 is provided through a machine base at the center of a side surface of the longitudinal positioning frame away from the sliding groove near the bottom end, and a threaded rotating rod 2 is fixedly installed at the top output end of the motor 1. A spiral slider is threadedly sleeved at the top of the threaded rotating rod 2, and the spiral slider is fixedly connected to the side wall of the longitudinal positioning frame in the same plane.

[0007] Furthermore, the top ends of the two groups of threaded sleeves are vertically installed with limiting gear rollers, and the ends of the two groups of clamping frames located at the upper end of the threaded sleeve are provided with card slots matching the limiting gear rollers and are sleeved on the outside of the corresponding limiting gear rollers. The clamping frame located at the bottom of the threaded sleeve is fixedly connected to the threaded sleeve, and a transverse groove is provided inside each group of the clamping frames. The two groups of clamping frames located at the upper end of the threaded sleeve are fixedly installed with sliding frames on the side away from each other, and a multi-directional hammering assembly is commonly provided between the two groups of sliding frames.

[0008] Furthermore, the multi-directional hammer assembly includes a movable long frame with a concave structure, which is movably arranged at one end of the top of the two groups of sliding frames, and the bottom surface of the movable long frame is located inside the two groups of sliding frames and is sleeved with a concave clamping frame 1, one of which has an internal thread of the concave clamping frame 1 passing through a threaded rotating rod 3, and a motor 2 is jointly arranged between one end of the threaded rotating rod 3 and the corresponding interior of the sliding frame.

[0009] Furthermore, a cylinder is provided at the inner wall of the rear end of the movable long frame, and the output shaft at the front end of the cylinder is fixedly connected to the vertical frame through a push rod, a T-shaped slide bar slides inside the slide groove provided on the front end surface of the vertical frame, and the two ends of the T-shaped slide bar are respectively slidably connected to the corrugated grooves opened on the inner walls on both sides of the movable long frame, and two groups of vertical poles are vertically fixedly installed on the bottom surface of the T-shaped slide bar, and the bottom of the vertical pole has a curved structure and extends to the inside of the long groove provided on the bottom surface of the movable long frame.

[0010] Furthermore, the multi-directional hammer assembly also includes several groups of inserts fixedly installed on the inner wall of one side of each group of transverse grooves, and a T-shaped push rod is arranged inside the insert, one end of the T-shaped push rod is arranged in a curved structure and extends to the open groove arranged in the center of the anti-slip surface of the clamp frame, and a spring coil is arranged on the outside of the T-shaped push rod in the inner section of the insert.

[0011] Furthermore, a telescopic rod is commonly provided between the two groups of T-shaped support rods corresponding to the upper and lower groups of the clamping frames adjacent to each other, and a traction rod is fixedly installed at the center of the top surface of the T-shaped support rod inside the upper clamping frame, and the top notches of the horizontal grooves of the two groups of clamping frames at the upper end are respectively slidably connected to the concave clamping frame 2.

[0012] Furthermore, the front and rear groups of the concave card frames are respectively sleeved on the outside of the movable long frame, and a limiting groove is provided on the bottom surface of the concave card frame. Both ends of the limiting groove are connected to the outside, and the notch on one side of the limiting groove is located in the same plane as the top of the traction rod, and a bent angle structure is provided in the middle section of the limiting groove.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The present invention utilizes a built-in dual-axis motor to drive a reverse threaded rotating rod, driving two sets of threaded sleeve frames to move toward each other, and bidirectionally clamping the upper and lower molds through the upper and lower clamping frames, and the upper clamping frame realizes floating clamping through a limiting tooth roller, and the lower clamping frame is rigidly fixed to ensure the accurate positioning and anti-slip of the upper and lower molds. This structure realizes high-precision positioning of the double-layer mold and reduces displacement and deformation during the demolding process. A split frame assembly is then provided, which cooperates with the double-layer limiting mechanism. Motor one drives threaded rotating rod two, driving the spiral slider to rise and fall vertically, pulling the clamping frame and the upper mold to rise synchronously to realize mold separation. The second motor of the present invention drives the movable long frame to move horizontally to cover the top surface of the mold, and the cylinder triggers the vertical rod to hammer longitudinally to eliminate internal stress. At the same time, when the movable long frame continues to move, the traction rod cooperates with the limit groove to drive the T-shaped support rod to dynamically knock the side walls of the upper and lower molds, thereby enhancing the stripping effect. The vertical lifting and lowering of the frame assembly and the hammering pretreatment work together to reduce the demoulding resistance and improve the material removal efficiency and the quality of the finished product. In summary, the problems of mold displacement, top cover deformation and demoulding adhesion in the traditional demoulding process are solved through the combination of mechanical linkage and dynamic hammering technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] To facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 A top view of the overall structure of the present invention; Figure 3 It is a cross-sectional view of the stripping frame of the present invention; Figure 4 It is a half-cut perspective schematic diagram of the stripping frame of the present invention; Figure 5 It is a half-section schematic diagram of the combination of two sets of clamp frames of the present invention; Figure 6 This is a schematic diagram of the bottom of the movable long frame of the present invention; Figure 7 It is a three-dimensional schematic diagram of the movable long frame of the present invention; Figure 8 It is a partial side sectional view of the movable long frame of the present invention.

[0016] In the figure: 1. stripping frame; 2. double-layer limiting mechanism; 21. horizontal positioning frame; 22. double-axis motor; 23. threaded rotating rod 1; 24. threaded sleeve frame; 25. clamping frame; 251. horizontal groove; 26. limiting gear roller; 27. sliding frame; 3. split frame assembly; 31. longitudinal positioning frame; 32. motor 1; 33. threaded rotating rod 2; 34. spiral slider; 4. multi-directional hammer assembly; 41. movable long frame; 42. concave clamping frame 1; 43. threaded rotating rod 3; 44. motor 2; 45. cylinder; 46. vertical frame; 47. T-shaped sliding rod; 48. vertical rod; 49. insert cylinder; 410. T-shaped push rod; 411. spring coil; 412. telescopic rod; 413. traction rod; 414. concave clamping frame 2; 415. limiting groove. DETAILED DESCRIPTION

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0018] Example 1: Please refer to Figure 1 - Figure 4 As shown, the multi-point anti-deformation stripping structure used in the top cover stamping process includes a stripping frame 1 with a concave structure, a double-layer limiting mechanism 2 is provided inside the stripping frame 1, and a sub-frame component 3 is provided inside the stripping frame 1 on one side of the double-layer limiting mechanism 2; Among them, the double-layer limiting mechanism 2 includes a transverse positioning frame 21, which is fixedly installed at the end of the stripping frame 1 away from the opening, and a dual-axis motor 22 is provided at the center of the transverse positioning frame 21. The front and rear ends of the dual-axis motor 22 are respectively fixedly installed with threaded rotating rods 23 with opposite thread structures. The interior of the transverse positioning frame 21 and the outside of the two sets of threaded rotating rods 23 are respectively threadedly sleeved with threaded sleeve frames 24; Each set of threaded sleeves 24 is provided with a clamping frame 25 at the upper and lower ends respectively. The opposite surfaces of the two sets of clamping frames 25 corresponding to the front and rear are provided with anti-slip grooves. The tops of the two sets of threaded sleeves 24 are vertically installed with limit gear rollers 26. The ends of the two sets of clamping frames 25 at the upper ends of the threaded sleeves 24 are provided with a slot matching the limit gear rollers 26 and are sleeved on the outside of the corresponding limit gear rollers 26. The clamping frame 25 at the bottom of the threaded sleeve 24 is fixedly connected to the threaded sleeve 24; The sub-frame assembly 3 includes two groups of longitudinal positioning frames 31, which are respectively arranged at the upper and lower ends of the stripping frame 1 on one side of the transverse positioning frame 21. The front and rear ends of the longitudinal positioning frames 31 near the upper end are respectively slidably connected to the vertical grooves opened on the front and rear inner walls of the stripping frame 1, and the ends of the four groups of clamping frames 25 are respectively slid in the corresponding slide grooves provided on the sides of the longitudinal positioning frames 31; A motor 1 32 is provided through a machine base at the center of a side surface of the longitudinal positioning frame 31 away from the chute near the bottom end, and a threaded rotating rod 2 33 is fixedly mounted on the output end of the top of the motor 1 32. A spiral slider 34 is threadedly sleeved on the top end of the threaded rotating rod 2 33, and the spiral slider 34 is fixedly connected to the side wall of the longitudinal positioning frame 31 on the same plane; Initial positioning and clamping stage: first, place the top cover mold as a whole in the working cavity of the stripping frame 1, with the upper and lower mold assemblies corresponding to the upper and lower clamping frames 25 respectively, and then start the dual-axis motor 222 to drive the two sets of threaded rotating rods 1 23 to rotate, because the threaded sleeve frame 24 is threadedly sleeved on the outside of the threaded rotating rod 1 23; Under the action of the threads, the two sets of threaded sleeves 24 move toward each other along the axial direction, thereby driving the four sets of clamping frames 25 to move toward the middle at the same time, clamping the upper and lower molds of the top cover mold respectively. The anti-slip grooves can increase the friction force, prevent the mold from slipping, and improve the stability of the clamping. It is worth noting that the upper clamping frame 25 realizes floating clamping of the upper die set through the limiting toothed roller 26, and the lower clamping frame 25 is rigidly fixed to ensure the reference positioning of the lower die set; Mold separation stage: Start the motor 1 32 to drive the threaded rotating rod 2 33 to rotate. Under the action of the thread, the spiral slider 34 is forced to drive the longitudinal positioning frame 31 at the top vertically upward, and at the same time pull the two sets of clamping frames 25 at the top and the upper mold cover to rise synchronously. The two sets of clamping frames 25 at the top and the limiting gear roller 26 move relative to each other, thereby realizing the separation of the upper mold cover and the lower mold, which is convenient for demoulding the top cover; The double-layer limiting mechanism 2 is used to accurately position and clamp the double-layer mold to prevent the mold from shifting during the demolding process. It cooperates with the frame assembly 3 to assist in separating the upper and lower molds and the top cover during the stamping process to avoid adhesion or damage between the top cover and the mold.

[0019] Example 2: Please refer to Figure 4 、 Figure 5 As shown, a transverse groove 251 is provided inside each set of clamping frames 25, and a sliding frame 27 is fixedly installed on the side away from each other of the two sets of clamping frames 25 at the upper end of the threaded sleeve 24, and a multi-directional hammer assembly 4 is provided between the two sets of sliding frames 27; The multi-directional hammer assembly 4 includes a movable long frame 41 with a concave structure. The movable long frame 41 is movably arranged at one end of the top of the two groups of sliding frames 27, and a concave clamping frame 1 42 is sleeved on the bottom surface of the movable long frame 41 and located inside the two groups of sliding frames 27. A threaded rotating rod 3 43 is passed through the internal thread of one group of concave clamping frames 1 42. A motor 2 44 is commonly provided between one end of the threaded rotating rod 3 43 and the corresponding interior of the sliding frame 27. When the motor 2 44 drives the threaded rotating rod 3 43 to rotate, the concave clamping frame 1 42 drives the movable long frame 41 to move laterally along the sliding frame 27 until it covers the top surface of the upper mold; A cylinder 45 is provided on the inner wall of the rear end of the movable long frame 41, and the output shaft at the front end of the cylinder 45 is fixedly connected to the vertical frame 46 via a push rod. A T-shaped slide 47 slides inside the slide groove provided on the front end surface of the vertical frame 46, and the two ends of the T-shaped slide 47 are respectively slidably connected to the corrugated grooves provided on the inner walls of the two sides of the movable long frame 41. Two sets of vertical rods 48 are vertically fixedly installed on the bottom surface of the T-shaped slide 47. The bottom of the vertical rod 48 has a curved surface structure and extends into the long groove provided on the bottom surface of the movable long frame 41. It can move vertically along the long groove of the movable long frame 41, converting horizontal displacement into longitudinal hammering action; The specific operation process includes the following: before the upper and lower molds open and close, the second motor 44 is started and drives the third threaded rotating rod 43 to rotate, forcing the movable long frame 41 to move the concave clamping frame 1 42 and the sliding frame 27 away from the second motor 44 until the movable long frame 41 sweeps across the surface of the upper mold assembly; at the same time, the starting cylinder 45 pushes the vertical frame 46 forward through the push rod, and the T-shaped slide rod 47 moves along the corrugated groove trajectory. The T-shaped slide rod 47 drives the two sets of vertical rods 48 to perform a longitudinal hammering action. The vertical rods 48 penetrate the long groove and continuously strike the top surface of the upper mold body longitudinally. It is worth noting that, due to the change in the size of the clamping mold, the front and rear clamping frames 25 and the movable long frame 41 are forced to continuously move. Therefore, the two sets of concave clamping seats also move relative to the movable long frame 41 to avoid movement obstruction. The multi-directional hammering assembly 4 effectively disperses the residual stress inside the top cover through matrix hammering point coverage, reduces the risk of deformation after molding, and coordinates the control of lateral displacement and longitudinal hammering action to adapt to the stripping requirements of molds of different specifications.

[0020] Example 3: Please refer to Figure 4 、 Figure 6 - Figure 8 As shown, the multi-directional hammer assembly 4 also includes a plurality of inserts 49 fixedly mounted on the inner wall of one side of each set of transverse grooves 251, and a T-shaped abutment rod 410 is provided inside the inserts 49. One end of the T-shaped abutment rod 410 is provided with a curved surface structure and extends to the open groove provided in the center of the anti-slip surface of the clamping frame 25. A spring coil 411 is provided outside the T-shaped abutment rod 410 and located inside the inserts 49. A telescopic rod 412 is commonly provided between the two groups of T-shaped push rods 410 corresponding to the upper and lower groups of the upper and lower adjacent clamping frames 25, and a traction rod 413 is fixedly installed at the center of the top surface of the T-shaped push rod 410 inside the upper clamping frame 25 to achieve synchronous displacement; the top notches of the transverse grooves 251 of the two groups of clamping frames 25 at the upper end are respectively slidably connected with the concave card frame 2 414, and the front and rear groups of concave card frames 2 414 are respectively sleeved on the outside of the movable long frame 41, and the bottom surface of the concave card frame 2 414 is provided with a limiting groove 415, the two ends of the limiting groove 415 are connected to the outside, and the notch on one side of the limiting groove 415 and the top of the traction rod 413 are located in the same plane, and a bent angle structure is provided at the middle section of the limiting groove 415; The dynamic adjustment process includes: when the movable long frame 41 moves laterally, the second concave clamping frame 414 moves synchronously until the top of the traction rod 413 contacts the limiting groove 415. As the movable long frame 41 continues to move, the top of the traction rod 413 slides along the angle structure of the limiting groove 415, forcing the T-shaped push rod 410 to compress the spring coil 411, and the curved end dynamically taps the side wall of the mold; after the traction rod 413 disengages from the limiting groove 415, the spring coil 411 releases potential energy, pushing the T-shaped push rod 410 to return to its original position, completing a reciprocating tapping cycle; It is worth noting that the T-shaped supporting rods 410 of the upper and lower adjacent clamping frames 25 are rigidly linked through the telescopic rod 412 to ensure uniformity in the knocking of the upper and lower sets of mold side walls.

[0021] In summary, by setting up a double-layer limiting mechanism 2 and a split frame assembly 3, the double-layer top cover mold can be accurately positioned and clamped to avoid displacement or deformation during the demolding process. At the same time, the multi-directional and multi-point knocking of the multi-directional hammer assembly 4 can further improve the demolding effect and product quality, and is suitable for various top cover demolding processes.

[0022] Working principle: First, the upper and lower molds are precisely clamped and positioned by the double-layer limit mechanism 2 to ensure the stability of the mold during the demoulding process; Then, the multi-directional hammering assembly 4 is driven to operate, and the second motor 44 drives the third threaded rotating rod 43 to rotate, causing the movable long frame 41 to move laterally along the sliding frame 27 to cover the top surface of the upper mold; at the same time, the cylinder 45 pushes the vertical frame 46 forward, and the T-shaped sliding rod 47 moves along the corrugated groove trajectory, driving the vertical rod 48 to perform a longitudinal hammering action, effectively dispersing the residual stress inside the top cover and reducing the risk of deformation after molding; in addition, as the movable long frame 41 continues to move, the traction rod 413 slides along the angle structure of the limiting groove 415 on the bottom surface of the concave clamping frame 414, driving the T-shaped supporting rod 410 to perform dynamic knocking on the side wall of the mold, further enhancing the stripping effect; Finally, start the motor 1 32, and through the cooperation of the threaded rotating rod 2 33 and the spiral slider 34, drive the upper longitudinal positioning frame 31 and the clamping frame 25 to rise vertically, driving the upper mold cover and the lower mold to separate so as to cooperate in demoulding and taking out the material.

[0023] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A multi-point anti-deformation stripping structure used in a top cover stamping process, comprising a stripping frame (1) with a concave structure, characterized in that: A double-layer limiting mechanism (2) is provided inside the stripping frame (1), and a sub-frame component (3) is provided inside the stripping frame (1) on one side of the double-layer limiting mechanism (2); Wherein, the double-layer limiting mechanism (2) includes a transverse positioning frame (21), the transverse positioning frame (21) is fixedly installed at one end of the stripping frame (1) away from the opening, and a double-axis motor (22) is provided at the center of the transverse positioning frame (21), and the front and rear ends of the double-axis motor (22) are respectively fixedly installed with threaded rotating rods (23) with opposite thread structures, and the interior of the transverse positioning frame (21) and the exteriors of the two groups of threaded rotating rods (23) are respectively threadedly sleeved with threaded sleeve frames (24), and the upper and lower ends of each group of the threaded sleeve frames (24) are respectively provided with clamping frames (25), and the opposite surfaces of the two groups of the clamping frames (25) corresponding to the front and rear are provided with anti-slip grooves; The sub-frame assembly (3) includes two groups of longitudinal positioning frames (31), which are respectively arranged at the upper and lower ends of the stripping frame (1) on one side of the transverse positioning frame (21), and the front and rear ends of the longitudinal positioning frames (31) near the upper end are respectively slidably connected to the vertical grooves opened on the front and rear inner walls of the stripping frame (1).

2. The multi-point anti-deformation and material stripping structure used in the top cover stamping process according to claim 1, characterized in that: The ends of the four groups of clamping frames (25) slide in the corresponding sliding grooves provided on the side of the longitudinal positioning frame (31), and a motor 1 (32) is provided at the center of a side of the longitudinal positioning frame (31) away from the sliding groove near the bottom through the machine base, and a threaded rotating rod 2 (33) is fixedly installed on the top output end of the motor 1 (32), and a spiral slider (34) is threadedly sleeved at the top of the threaded rotating rod 2 (33), and the spiral slider (34) is fixedly connected to the side wall of the longitudinal positioning frame (31) on the same plane.

3. The multi-point anti-deformation and material stripping structure used in the top cover stamping process according to claim 1, characterized in that: The top ends of the two groups of threaded sleeves (24) are vertically mounted with limit tooth rollers (26); the ends of the two groups of clamping frames (25) located at the upper end of the threaded sleeve (24) are provided with slots matching the limit tooth rollers (26) and are sleeved on the outside of the corresponding limit tooth rollers (26); the clamping frames (25) located at the bottom of the threaded sleeve (24) are fixedly connected to the threaded sleeve (24); a transverse groove (251) is provided inside each group of the clamping frames (25); a sliding frame (27) is fixedly mounted on the side away from each other of the two groups of clamping frames (25) located at the upper end of the threaded sleeve (24); and a multi-directional hammering assembly (4) is commonly provided between the two groups of the sliding frames (27).

4. The multi-point anti-deformation and material stripping structure used in the top cover stamping process according to claim 3, characterized in that: The multi-directional hammer assembly (4) comprises a movable long frame (41) of a concave structure, wherein the movable long frame (41) is movably arranged at one end of the top of the two groups of sliding frames (27), and the bottom surface of the movable long frame (41) and the inside of the two groups of sliding frames (27) are both sleeved with a concave clamping frame (42), wherein the internal thread of one group of the concave clamping frame (42) is penetrated by a threaded rotating rod (43), and a motor (44) is commonly arranged between one end of the threaded rotating rod (43) and the inside of the corresponding sliding frame (27).

5. The multi-point anti-deformation and material stripping structure used in the top cover stamping process according to claim 4, characterized in that: A cylinder (45) is provided at the inner wall of the rear end of the movable long frame (41), and the output shaft at the front end of the cylinder (45) is fixedly connected to the vertical frame (46) through a push rod. A T-shaped slide bar (47) slides inside the slide groove provided on the front end surface of the vertical frame (46), and the two ends of the T-shaped slide bar (47) are respectively slidably connected to the corrugated grooves opened at the inner walls on both sides of the movable long frame (41). Two groups of vertical rods (48) are vertically fixedly installed on the bottom surface of the T-shaped slide bar (47), and the bottom of the vertical rod (48) is a curved surface structure and extends to the inside of the long groove provided on the bottom surface of the movable long frame (41).

6. The multi-point anti-deformation and material stripping structure used in the top cover stamping process according to claim 3, characterized in that: The multi-directional hammer assembly (4) further comprises a plurality of groups of inserts (49) fixedly mounted on the inner wall of one side of each group of transverse grooves (251), and a T-shaped push rod (410) is provided inside the inserts (49), one end of the T-shaped push rod (410) is provided with a curved surface structure and extends to an open groove provided at the center of the anti-slip surface of the clamping frame (25), and a spring coil (411) is provided outside the T-shaped push rod (410) and located inside the inserts (49).

7. The multi-point anti-deformation and material stripping structure used in the top cover stamping process according to claim 3, characterized in that: A telescopic rod (412) is commonly provided between the two upper and lower corresponding groups of T-shaped support rods (410) inside the two upper and lower adjacent groups of the clamping frames (25), a traction rod (413) is fixedly installed at the center of the top surface of the T-shaped support rod (410) inside the upper clamping frame (25), and the top notches of the transverse grooves (251) of the two upper groups of the clamping frames (25) are respectively slidably connected to the concave clamping frame 2 (414).

8. The multi-point anti-deformation and material stripping structure used in the top cover stamping process according to claim 7, characterized in that: The front and rear groups of the concave card frames (414) are respectively sleeved on the outside of the movable long frame (41), and the bottom surface of the concave card frame (414) is provided with a limiting groove (415), both ends of the limiting groove (415) are connected to the outside, and the notch on one side of the limiting groove (415) and the top end of the traction rod (413) are located in the same plane, and a bent angle structure is provided at the middle section of the limiting groove (415).

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