High-speed stamping device for automobile shock absorber support

Abstract

The invention relates to the technical field of stamping machining, in particular to a high-speed stamping device for an automobile shock absorber support. Comprising a frame body and a movably-arranged straight keeping part, the stamping mechanism comprises a lower module and an upper module, two moving seats in bilateral symmetry and a supporting plate located between the two moving seats are slidably installed on the lower module, two supporting seats in bilateral symmetry are slidably installed on the supporting plate, and limiting plates are rotatably installed on the supporting seats. Through cooperation of the rotatable limiting plate and the linkage demolding structure, dynamic limiting of a plate is kept in the whole stamping process, after stamping and before the upper die block moves upwards, rigid supporting is formed by making contact with the two sides of the vertical section of the forming support in advance through the straight keeping pieces, free deformation of the material is restrained, and the stamping quality is improved. And then when the upper die block moves upwards and the limiting plate is separated from the support, the straightening piece conducts vertical straightening and shape preserving on the vertical section of the formed support in an up-down reciprocating mode, so that the forming precision of the formed support is guaranteed, meanwhile, rapid demolding is facilitated, and the overall production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of stamping processing, and particularly relates to a high-speed stamping device for an automotive shock absorber bracket. Background Art

[0002] As a key load-bearing component of an automotive suspension system, an automotive shock absorber bracket (hereinafter referred to as the bracket) needs to have high strength, high precision and lightweight characteristics. Therefore, high requirements are imposed on the forming quality and precision of the bracket. At present, high-speed stamping technology is mainly used to form the bracket. The stamping forming operation process of the bracket is as follows: A flat plate provided with two mounting holes is placed on the lower die, and then positioning is achieved through the physical contact between the edge of the plate and the rigid positioning pin. Subsequently, the upper die is driven to press down to form the plate into a concave structure; after forming, the concave bracket is clamped on the upper die due to the clamping force generated by the plastic deformation of the material. Therefore, an operator needs to hold a tool to strike the bracket to force it to disengage from the die.

[0003] At present, the following problems exist in the stamping process of the bracket: First, although a rigid positioning pin is used to limit the plate and restrict the planar movement of the plate, it cannot restrain the rotation tendency or local warping of the plate caused by the instantaneous impact force; moreover, the non-uniformity of material flow during the stamping process will further amplify the risk of positioning failure, resulting in deviations in the contour dimensions of the stamped bracket. Second, traditional demoulding relies on manual knocking to separate the workpiece from the die, which not only has low efficiency but also easily causes surface damage to the workpiece or chipping of the die edge due to improper operation.

[0004] In addition, there are also limit plates that can rotate with the bending of the plate and positioning pins or limiting structures fixedly installed on the limit plates to perform dynamic limiting on the plate during stamping. However, after stamping, when the limit plate rotates away from the vertical section of the formed bracket, it is easy to rub or mechanically interfere with the vertical section of the formed bracket, causing local deformation of the vertical section of the formed bracket. If there is slight springback or warping in the vertical section of the bracket, the limit plate may not be able to disengage smoothly, affecting the demoulding efficiency. Forcible pulling for material taking will further affect the dimensional accuracy of the formed bracket. If the limit plate rotates away prematurely, the vertical section of the formed bracket loses external support when the upper die has not completely disengaged or the material is still in the plastic deformation stage, and may undergo deformations such as springback, distortion or collapse due to residual stress.

[0005] Therefore, the problems of offset of plate positioning, non-uniform material flow, low demoulding efficiency, and the influence of demoulding actions on the dimensional accuracy of the formed bracket during the stamping process are technical problems that need to be solved by those skilled in the art. Summary of the Invention

[0006] In view of the above problems, an embodiment of the present invention provides a high-speed stamping device for an automotive shock absorber bracket to solve the above-mentioned technical problems.

[0007] To achieve the above object, the embodiments of the present invention provide the following technical solution: A high-speed stamping device for an automotive shock absorber bracket, comprising a frame body, on which a stamping mechanism is provided; the stamping mechanism includes a lower module and an upper module. On the lower module, two symmetrically arranged moving seats on the left and right and a support plate located between the two moving seats are slidably installed. The support plate is slidably arranged up and down. On the support plate, two symmetrically arranged support seats on the left and right are slidably installed. The support seats are slidably connected to the corresponding moving seats through support plates, and a limiting plate is rotatably installed on the support seats; a limiting groove and a limiting post are provided on the limiting plate; a push-pull rod is provided on the moving seat. When the upper module presses down the sheet material to drive the support plate to move down for stamping, the limiting plate is synchronously pushed to rotate by the push-pull rod to assist in bending, and the limiting groove and the limiting post continuously position the sheet material; a straightness-preserving member is movably arranged, including two groups of straightness-preserving plates that are symmetrically arranged on the left and right and are slidably matched with the upper module and the limiting plate; before the upper module moves up and resets, the straightness-preserving plates first move down and then reciprocate up and down to perform vertical shape preservation in the left-right direction on the vertical section of the formed bracket; a limiting portion is provided on the lower module. During the vertical shape preservation, the upper module first moves up and resets, and then the limiting portion first releases the locking of the moving seat so that the limiting post disengages from the bracket, and then the straightness-preserving plates move up, and the limiting portion releases the locking of the support plate.

[0008] As a preferred solution, the lower module is fixedly installed at the upper end of the bottom plate. The upper end of the frame body is slidably installed with a fixing plate through a plurality of guide columns. The lower end of the fixing plate is fixedly installed with an upper module in a T-shaped structure and located directly above the lower module. The straightness-preserving member further includes a mounting plate slidably installed on the guide columns and located directly above the fixing plate. Through holes slidably matched with the corresponding straightness-preserving plates are opened on the fixing plate, the upper module, and the limiting plate.

[0009] As a preferred solution, two symmetrically arranged chutes are opened at the upper end of the lower module. The moving seats are slidably installed in the corresponding chutes. The moving seats are in a concave structure, and the support plate is in a T-shaped structure. Two symmetrically arranged sliding rods are fixedly installed at the lower end of the support plate. The lower ends of the sliding rods are slidably inserted into the lower module, and a jacking spring with its upper and lower ends fixedly connected to the support plate and the lower module respectively is sleeved on the sliding rods.

[0010] As a preferred solution, inclined grooves are opened on both vertical sections of the moving seat. The inclined grooves incline away from the support plate from top to bottom. A driving rod is commonly arranged between the two inclined grooves on the same moving seat. Both ends of the driving rod slidably penetrate through the corresponding inclined grooves and then are rotatably installed with a push-pull rod, and the push-pull rod is hinged to the corresponding limiting plate.

[0011] As a preferred solution, the limiting portion includes a support plate. The upper end of the frame body is fixedly installed with a support plate located at the rear side of the lower module. The rear end of the support plate is fixedly installed with a first cylinder. The telescopic section of the first cylinder slidably penetrates through the support plate and then is fixedly installed with a connecting plate. The front end of the connecting plate is fixedly installed with a first insertion rod corresponding to the moving seat, and the first insertion rod slidably penetrates through the lower module into the corresponding moving seat.

[0012] As a preferred solution, a jacking plate is slidably installed up and down between two vertical sections of the moving seat. A fixing sleeve is slidably installed left and right at the upper end of the jacking plate. The fixing sleeve is fixedly installed on the corresponding driving rod. An execution part for driving the jacking plate to move up and down is arranged on the moving seat.

[0013] As a preferred solution, the execution part includes a pushing block. A pushing block with a right-angled trapezoid structure is slidably installed at one end of the horizontal section of the moving seat close to the support plate through two support columns. A compression spring with its left and right ends respectively connected to the pushing block and the moving seat is sleeved on the support column.

[0014] As a preferred solution, the support seat is slidably connected to the vertical section of the support plate through a pair of positioning columns. The support seat has a concave structure. The limiting plate is rotatably installed between two parallel sections of the support seat.

[0015] As a preferred solution, a second cylinder is fixedly installed at the rear end of the support plate. The telescopic section of the second cylinder slidably penetrates through the support plate and is fixedly installed with a second insertion rod. The second insertion rod is slidably inserted into the support plate.

[0016] As a preferred solution, a connecting rod inclined from top to bottom and towards the side close to the support plate is hinged between the pushing block and the lower end of the corresponding jacking plate. A wedge block for pushing the pushing block to move is fixedly installed at the lower end of the vertical section of the support plate.

[0017] One or more of the above technical solutions in the embodiments of the present invention have at least one of the following technical effects: First, through the cooperation of the rotatable limiting plate and the linkage demolding structure, the present invention maintains dynamic and effective limiting of the sheet material throughout the stamping process. Before the upper die moves up and resets after stamping, the straightening part contacts the two sides of the vertical section of the forming bracket in advance to form a rigid support, restricting the free deformation of the material. Then, during the period when the upper die moves up and resets and the limiting plate disengages from the forming bracket, the straightening part continuously performs left-right vertical straightening and shape preservation on the vertical section of the forming bracket in a reciprocating up and down manner, so as to ensure the forming accuracy of the forming bracket, and at the same time facilitate rapid demolding and improve the overall production efficiency.

[0018] Second, during the stamping process, the limiting plate will rotate in real time following the bending of the sheet material, and the rotation direction of the limiting plate is the same as the bending direction of the sheet material. Through the wrapping of the limiting groove on the end of the sheet material and the continuous positioning of the limiting column on the mounting hole, the rotation or warping of the sheet material is effectively prevented. Compared with the traditional fixed limiting structure, the dynamic follow-up limiting method can significantly improve the uniform deformation of material flow and enhance the bending forming accuracy of the sheet material.

[0019] III. Although the limiting plate in the present invention is rotatably arranged, when it is disengaged from the forming bracket, the present invention adopts the method of horizontally moving the limiting plate in the vertical state away from the forming bracket in opposite directions, rather than directly rotating and disengaging, so as to avoid the forming bracket being subjected to multi-directional forces. The horizontal pulling force generated when the limiting plate is disengaged is offset by the straightening member, which can avoid the deformation of the vertical section of the forming bracket while realizing rapid demoulding.

[0020] IV. During the upward movement and reset of the upper module and during the disengagement of the limiting plate from the forming bracket, through the vertical shape preservation and left - right limitation of the vertical section of the forming bracket by the straightening member, it can avoid the deformation of the vertical section of the forming bracket caused by the upward movement and disengagement of the upper module. By setting the straightening member, the horizontal pulling force generated when the limiting plate is disengaged is offset, which can avoid the deformation of the vertical section of the forming bracket caused by this horizontal pulling force, and also avoid the deformation of the vertical section of the bracket that may occur due to the residual stress of the material.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description, will become apparent in part from the following description, or will be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0023] Figure 1 It is a three - dimensional structural schematic diagram when the stamping processing bracket of the present invention.

[0024] Figure 2 It is a structural schematic diagram of the straightening plate, limiting plate and upper module of the present invention.

[0025] Figure 3 It is a structural schematic diagram of the limiting plate of the present invention in the initial state.

[0026] Figure 4 It is a sectional view of a partial structure of the stamping mechanism of the present invention.

[0027] Figure 5 It is a structural schematic diagram of the limiting plate of the present invention in the vertical state.

[0028] Figure 6 It is a process change diagram for stamping a flat plate into a concave - shaped bracket.

[0029] 1. The support plate of the embodiment of the present invention is provided with a plurality of support members, each of which is provided with a plurality of support members, and a plurality of support members are provided with plurality of support members. The support plate of the embodiment of the present invention is provided with a plurality of support members, each of which is provided with a plurality of support members. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0031] like Figure 1 As shown, a high-speed stamping device for a vehicle shock absorber bracket includes a frame body, which is composed of an equipment frame 10 and a base plate 11 installed thereon, and a stamping mechanism 2 is arranged on the base plate 11.

[0032] like Figure 1 , Figure 3 and Figure 4 As shown, the stamping mechanism 2 includes a lower module 20 fixedly mounted on the upper end of the bottom plate 11, an upper module 21 is slidably mounted directly above the lower module 20 via a guide column, two left-right symmetrical moving seats 22 and a support plate 23 located between the two moving seats 22 are slidably mounted on the lower module 20, the support plate 23 slides up and down, two left-right symmetrical support seats 24 are slidably mounted on the support plate 23, a limiting plate 25 is rotatably mounted on the support seat 24, a limiting groove 250 is provided on the limiting plate 25, a limiting column 251 is fixedly mounted in the limiting groove 250, the support seat 24 is slidably connected to the corresponding moving seat 22 via a support plate 221, a push-pull rod 222 for driving the limiting plate 25 to rotate is provided on the moving seat 22, and a limiting portion 4 for limiting the movement of the support plate 23 and the moving seat 22 is provided on the lower module 20. Figure 2 As shown, the limiting groove 250 is a U-shaped structure when viewed from a top view, and the shape of the limiting groove 250 matches the shape of the end of the straight plate.

[0033] like Figure 1 , Figure 2 andFigure 6 As shown, the lower module 20 is fixedly installed at the upper end of the bottom plate 11. Four guide posts distributed in a rectangle are fixedly installed at the upper end of the bottom plate 11. A fixing plate is slidably installed on the guide posts together. A lower end of the fixing plate is fixedly installed with an upper module 21 having a T-shaped structure and located directly above the lower module 20. A straightening member is slidably installed on the guide posts together. The straightening member includes a mounting plate 26 located directly above the fixing plate and slidably connected to the guide posts and a straightening plate 27. Two groups of left and right symmetric straightening plates 27 are fixedly installed at the lower end of the mounting plate 26. Each group includes four straightening plates 27 distributed in a rectangle and used for vertically shaping the vertical section of the formed bracket. Through holes slidably matched with the corresponding straightening plates 27 are formed on the fixing plate, the upper module 21 and the limiting plate 25. An upper end of the guide posts is fixedly installed with a connecting plate 210 together. An upper end of the connecting plate 210 is fixedly installed with a hydraulic cylinder 211. A telescopic section of the hydraulic cylinder 211 slidably penetrates through the connecting plate 210 and is fixedly connected to an upper end of the fixing plate. As Figure 2 shown, an upper side of the through hole and a side close to the corresponding vertical section of the formed bracket are in an open state. Subsequently, when the limiting plate 25 moves horizontally away from each other later, the presence of the straightening plate 27 will not affect the movement of the limiting plate 25. A rubber pad can be arranged at a lower end of the straightening plate 27. When the straightening plate 27 moves downward, if its bottom end touches the horizontal section of the formed bracket, the rubber pad can play a role of buffering and protecting the horizontal section of the formed bracket.

[0034] As Figure 1 、 Figure 3 and Figure 5 shown, two left and right symmetric sliding grooves are formed at the upper end of the lower module 20. A moving seat 22 is slidably installed in the corresponding sliding groove. The moving seat 22 has a concave structure. The supporting plate 23 has a T-shaped structure. Two front and rear symmetric sliding rods are fixedly installed at a lower end of the supporting plate 23. Lower ends of the sliding rods are slidably inserted into the lower module 20. A jacking spring 230 with upper and lower ends fixedly connected to the supporting plate 23 and the lower module 20 respectively is sleeved on the sliding rods.

[0035] As Figure 1 and Figure 3 shown, the supporting seat 24 is slidably connected to a vertical section of the supporting plate 23 through a pair of positioning posts. The supporting seat 24 has a concave structure. The limiting plate 25 is rotatably installed between two parallel sections of the supporting seat 24.

[0036] As Figures 1 to 6As shown, during actual operation, the flat plate is placed on the lower module 20, with both ends of the flat plate located in the corresponding limiting grooves 250. Then, manually press the plate to fully engage it in the limiting grooves 250, and the limiting posts 251 are inserted into the mounting holes of the flat plate. Subsequently, the upper module 21 moves downward to push and squeeze the flat plate, driving the limiting plates 25 on both sides to rotate synchronously. The rotation direction of the limiting plates 25 is consistent with the bending direction of the plate, ensuring that the limiting grooves 250 and the limiting posts 251 always fit the plate, avoiding the hard friction between the plate and the mold caused by traditional fixed limiting structures, thereby improving the quality of the stamping process of the bracket.

[0037] After stamping, before the upper module 21 moves upward to reset, a dynamic reciprocating vertical shape preservation process is applied to the vertical section of the formed bracket. Specifically: The existing drive source drives the mounting plate 26 to drive the straightening plate 27 to move downward. The straightening plate 27 passes through the corresponding through holes. The four straightening plates 27 in the same group are evenly distributed on the left and right sides of the vertical section of the formed bracket, and the straightening plate 27 contacts the side surface of the vertical section of the formed bracket, ensuring symmetric force application and preventing uneven loading during subsequent correction. Then, the existing drive source makes the mounting plate 26 drive the straightening plate 27 to move up and down reciprocally. The reciprocally moving straightening plate 27 can dynamically correct the minor deformation of the vertical section of the formed bracket, and the straightening plate 27 contacts the two sides of the vertical section of the formed bracket in advance before the upper module 21 disengages, forming a rigid support, which can effectively restrain the free deformation of the material and prevent the vertical section of the formed bracket from deforming due to the upward movement and disengagement of the upper module 21.

[0038] During the reciprocating movement of the straightening plate 27 up and down, the hydraulic cylinder 211 pulls the upper module 21 upward to reset through the fixed plate, while the limiting part 4 locks and restricts the support plate 23. At this time, as the upper module 21 moves upward, the support plate 23 remains in its current position. The limiting post 251 then pulls the formed bracket to disengage it from the upper module 21. After that, the locking of the moving seat 22 is released, and an external double-headed hydraulic cylinder (not shown in the figure) pushes the two moving seats 22 away from each other. At this time, the straightening plate 27 still moves up and down reciprocally, and the two moving seats 22 pull the support seat 24 to move through the support plates 221. The support seat 24 then pulls the limiting post 251 to disengage from the formed bracket through the limiting plate 25. Since the vertical section of the formed bracket is still under the limitation of the left and right distributed straightening plates 27, the disengagement of the limiting plate 25 will not cause the vertical section of the formed bracket to deform. Then, first move the straightening plate 27 upward and then release the locking of the support plate 23. The support plate 23 moves upward under the resilience of the lifting spring 230. At the same time, the external double-headed hydraulic cylinder pulls the two moving seats 22 closer to each other to reset, and the limiting plate 25 rotates synchronously until the limiting plate 25 rotates from the vertical state to the horizontal state and is located at the upper end of the corresponding moving seat 22. After that, continue the stamping process of the bracket.

[0039] As Figure 3 、 Figure 4 andFigure 5 As shown, inclined slots 220 are formed in both vertical sections of the moving seat 22. The inclined slots 220 incline away from the support plate 23 from top to bottom. A driving rod 223 is jointly arranged between the two inclined slots 220 on the same moving seat 22. Both ends of the driving rod 223 slide through the corresponding inclined slots 220 and then a push-pull rod 222 is rotatably installed. The push-pull rod 222 is hinged to the corresponding limiting plate 25.

[0040] As Figure 1 、 Figure 3 、 Figure 4 and Figure 5 As shown, a jacking plate 30 is slidably installed up and down between the two vertical sections of the moving seat 22. A fixing sleeve 31 is slidably installed left and right at the upper end of the jacking plate 30. The fixing sleeve 31 is fixedly installed on the corresponding driving rod 223. An actuating part 32 for driving the jacking plate 30 to move up and down is arranged on the moving seat 22.

[0041] As Figure 1 、 Figure 4 and Figure 5 As shown, the actuating part 32 includes a pushing block 320. The pushing block 320 with a right trapezoidal structure is slidably installed at one end of the horizontal section of the moving seat 22 close to the support plate 23 through two support columns. A compression spring 321 with its left and right ends respectively connected to the pushing block 320 and the moving seat 22 is sleeved on the support column.

[0042] As Figure 4 As shown, a connecting rod 322 inclined from top to bottom towards the support plate 23 is hinged between the pushing block 320 and the lower end of the corresponding jacking plate 30. A wedge-shaped block 323 for pushing the pushing block 320 to move is fixedly installed at the lower end of the vertical section of the support plate 23.

[0043] As Figures 1 to 6 ​As shown, during specific operation, the hydraulic cylinder 211 pushes the upper die 21 downward through the fixing plate. The upper die 21 will push the supporting plate 23 downward through the flat plate, and the supporting plate 23 drives the supporting seat 24 to move downward. At the same time, when the supporting plate 23 moves downward, it also pushes the two pushing blocks 320 away from each other and compresses the compression spring 321 through the wedge block 323. When the pushing block 320 moves, it pushes the jacking plate 30 upward through the connecting rod 322. When the jacking plate 30 moves upward, it will push the driving rod 223 upward through the fixed sleeve 31. The driving rod 223 moves upward and moves toward the supporting plate 23 under the guidance of the inclined groove 220. The driving rod 223 pushes the limiting plate 25 to rotate through the push-pull rod 222. One end of the limiting plate 25 away from the supporting plate 23 rotates upward with the hinge point of the supporting seat 24 and the limiting plate 25 as the reference. The limiting plate 25 rotates from the horizontal state to the vertical state, so as to assist in bending the plate, so that the flat plate is continuously and fully limited in real time to ensure the bending effect. At the same time, by following the bending of the plate with the limiting plate 25, a large relative offset between the plate and the limiting plate 25 is avoided, effectively and significantly reducing the frictional resistance between the plate and the die, prolonging the service life of the die, and guiding the material to flow more evenly. That is, when the plate is subjected to the punching force, the deformation and displacement of the internal material of the plate are coordinated and consistent in the spatial distribution, and there is no phenomenon of excessive stretching, compression or accumulation in the local area, so as to avoid local excessive stretching or rupture. In addition, the limiting column 251 and the limiting groove 250 always limit the plate to avoid the influence of the plate offset on the processing quality.

[0044] After stamping, the pallet 23 is locked in the current position, and the moving seat 22 is unlocked. On the premise that the straightening plate 27 reciprocates up and down to perform left - right limiting, vertical correction and shape preservation on the vertical section of the forming bracket, an external double - headed hydraulic cylinder (not shown in the figure) pushes the two moving seats 22 away from each other and compresses the compression spring 321. The moving seat 22 drives the support plate 221, the support seat 24, the limiting plate 25, the pushing block 320, the compression spring 321 and the connecting rod 322 to move synchronously as a whole, thereby driving the limiting column 251 to disengage from the forming bracket. Since the vertical section of the forming bracket is limited by the straightening plates 27 distributed left and right, the disengagement of the limiting plate 25 will not cause the bracket to deform. Then, first move the straightening plate 27 upward to reset and then unlock the pallet 23. When the external double - headed hydraulic cylinder pulls the two moving seats 22 close to each other to reset, the inclined groove 220 on the vertical section of the moving seat 22 guides the driving rod 223 to slide downward and away from the pallet 23. The driving rod 223 exerts a reverse pulling force on the limiting plate 25 through the push - pull rod 222 hinged to it, forcing the limiting plate 25 to swing back from the vertical state to the horizontal state around the hinge point of the support seat 24. After the pallet 23 is unlocked, the jacking spring 230 releases its elastic force to push the pallet 23 upward. The pallet 23 drives the forming bracket to move upward, and the wedge - shaped block 323 at the lower end of the pallet 23 also moves upward and disengages from the pushing block 320. The pushing block 320 moves toward the pallet 23 under the reset action of the compression spring 321, pulls down the jacking plate 30 through the connecting rod 322, and the jacking plate 30 drives the fixed sleeve 31 and the driving rod 223 to move further downward along the inclined groove 220, assisting in accelerating the rotation of the limiting plate 25 to complete the reset preparation and providing the initial state for the next stamping cycle. Finally, the forming bracket is removed manually or by existing material - taking equipment, mechanical claws, etc., and then flat plates are placed again to await the next stamping process.

[0045] In addition, the speed at which the mounting plate 26 drives the straightening plate 27 upward can be made to match the upward movement speed of the pallet 23, so that the straightening plate 27 still maintains the left - right limiting and vertical shape preservation of the vertical section of the forming bracket; or the mounting plate 26 drives the straightening plate 27 to move upward a certain distance and then pauses. At this time, the upper end of the vertical section of the forming bracket is slightly between the straightening plates 27 distributed left and right, and the distance between the lower end face of the straightening plate 27 and the upper end face of the horizontal section of the forming bracket is greater than the upward movement distance of the pallet 23. Then, the pallet 23 is unlocked. In this way, during the upward movement of the pallet 23 driving the forming bracket, the straightening plate 27 can still maintain the left - right limiting and vertical shape preservation of the vertical section of the forming bracket. Of course, the specific settings can be selected according to the actual situation.

[0046] Such as Figure 1 and Figure 5As shown, the limiting portion 4 includes a support plate 40. The upper end of the bottom plate 11 is fixedly installed with a support plate 40 located at the rear side of the lower module 20. The rear end of the support plate 40 is fixedly installed with a first cylinder 41. The telescopic section of the first cylinder 41 slidably penetrates through the support plate 40 and is fixedly installed with a connecting plate 42 at the rear. The front end of the connecting plate 42 is fixedly installed with a first insertion rod 43 corresponding to the moving seat 22 one by one. The first insertion rod 43 slidably penetrates through the lower module 20 and into the corresponding moving seat 22.

[0047] As Figure 5 shown, the rear end of the support plate 40 is fixedly installed with a second cylinder 44. The telescopic section of the second cylinder 44 slidably penetrates through the support plate 40 and is fixedly installed with a second insertion rod 45 at the rear. The second insertion rod 45 slidably inserts into the support plate 23.

[0048] As Figures 1 to 6 shown, during specific operation, before the upper module 21 moves downward for stamping, the first cylinder 41 will push the connecting plate 42 forward. The connecting plate 42 will insert into the corresponding moving seat 22 through the lower module 20 via the first insertion rod 43 to limit the movement of the moving seat 22, thereby ensuring the stability of the subsequent stamping process of the bracket. After stamping and forming, the second cylinder 44 pushes the second insertion rod 45 into the support plate 23 to limit the support plate 23 at the current position. The first cylinder 41 drives the first insertion rod 43 to reset through the connecting plate 42, then the restriction on the moving seat 22 is released. The moving seats 22 move away from each other, causing the limiting posts 251 to disengage from the bracket. Then, the second cylinder 44 pulls the second insertion rod 45 out of the support plate 23. Then, the support plate 23 moves upward to reset, and the limiting plate 25 rotates and resets while moving upward.

[0049] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the protection scope of the present invention; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself. In addition, in the description of the present invention, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0050] In the description of the present invention, it should also be noted that, unless otherwise clearly specified and defined, the terms "arranged", "connected", "installed", and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0051] The embodiments of the specific implementation manners are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A high-speed stamping device for an automotive shock absorber bracket, comprising a frame body, characterized in that: A stamping mechanism is provided on the frame body; The stamping mechanism includes a lower module and an upper module. Two symmetrically arranged moving seats and a support plate located between the two moving seats are slidably installed on the lower module. The support plate is slidably arranged up and down. Two symmetrically arranged support seats are slidably installed on the support plate. The support seats are slidably connected to the corresponding moving seats through support plates, and a limiting plate is rotatably installed on the support seats; The limiting plate is provided with a limiting groove and a limiting post. The two ends of the flat plate are completely clamped into the corresponding limiting grooves, and the limiting posts are inserted into the mounting holes at both ends of the flat plate. A push-pull rod is provided on the moving seat. When the upper module presses down the plate to drive the support plate to move down for stamping, the limiting plate is synchronously pushed to rotate through the push-pull rod to assist in bending. The limiting groove and the limiting post continuously fit to position the plate, avoiding hard friction between the plate and the mold; The straightening member is movably arranged, including two groups of straightening plates that are symmetrically arranged left and right and slidably cooperate with the upper module and the limiting plate. Before the upper module moves up and resets, the straightening plates first move down and then reciprocate up and down to perform vertical shaping in the left-right direction on the vertical section of the formed bracket; A limiting portion is provided on the lower module. During the vertical shaping, the upper module first moves up and resets, and then the limiting portion releases the locking of the moving seat, so that the limiting plate disengages from the bracket to achieve rapid demoulding. Then the straightening plates move up, and the limiting portion releases the locking of the support plate.

2. The high-speed stamping device for an automotive shock absorber bracket according to claim 1, characterized in that: The lower module is fixedly installed at the upper end of the bottom plate. The upper end of the frame body is slidably installed with a fixing plate through a plurality of guide columns. The lower end of the fixing plate is fixedly installed with an upper module in a T-shaped structure directly above the lower module. The straightening member further includes a mounting plate slidably installed on the guide columns directly above the fixing plate. Through holes slidably cooperating with the corresponding straightening plates are opened on the fixing plate, the upper module, and the limiting plate.

3. The high-speed stamping device for an automotive shock absorber bracket according to claim 1, wherein: Two symmetrically arranged chutes are opened at the upper end of the lower module. The moving seats are slidably installed in the corresponding chutes. The moving seats are in a concave structure, and the support plate is in a T-shaped structure. Two symmetrically arranged sliding rods are fixedly installed at the lower end of the support plate. The lower ends of the sliding rods are slidably inserted into the lower module, and a jacking spring whose upper and lower ends are respectively fixedly connected to the support plate and the lower module is sleeved on the sliding rods.

4. The high-speed stamping device for an automotive shock absorber bracket according to claim 2, characterized in that: Oblique grooves are opened on both vertical sections of the moving seat. The oblique grooves are inclined away from the support plate from top to bottom. A driving rod is commonly arranged between the two oblique grooves on the same moving seat. The two ends of the driving rod slidably penetrate through the corresponding oblique grooves and then are rotatably installed with a push-pull rod, and the push-pull rod is hinged to the corresponding limiting plate.

5. The high-speed stamping device for an automobile shock absorber bracket according to claim 1, characterized in that: The limiting portion includes a support plate. The upper end of the frame body is fixedly installed with a support plate located at the rear of the lower module. The rear end of the support plate is fixedly installed with a first cylinder. The telescopic section of the first cylinder slidably penetrates through the support plate and then is fixedly installed with a connecting plate. The front end of the connecting plate is fixedly installed with a first insertion rod corresponding to the moving seat, and the first insertion rod slidably penetrates through the lower module into the corresponding moving seat.

6. The high-speed stamping device for an automotive shock absorber bracket according to claim 4, characterized in that: A jacking plate is slidably installed up and down between the two vertical sections of the moving seat. A fixing sleeve is slidably installed left and right at the upper end of the jacking plate, and the fixing sleeve is fixedly installed on the corresponding driving rod. An actuating portion for driving the jacking plate to move up and down is arranged on the moving seat.

7. The high-speed stamping device for an automotive shock absorber bracket according to claim 6, wherein: The execution part includes a pushing block. One end of the horizontal section of the moving seat close to the support plate is slidably installed with a pushing block in a right trapezoidal structure through two support columns. A compression spring with its left and right ends respectively connected to the pushing block and the moving seat is sleeved on the support column.

8. The high-speed stamping device for an automobile shock absorber bracket according to claim 1, characterized in that: The support seat is slidably connected to the vertical section of the support plate through a pair of positioning columns. The support seat is in a concave structure, and the limiting plate is rotatably installed between two parallel sections of the support seat.

9. The high-speed stamping device for an automotive shock absorber bracket according to claim 5, characterized in that: A second cylinder is fixedly installed at the rear end of the support plate. The telescopic section of the second cylinder slidably penetrates through the support plate and is fixedly installed with a second insertion rod, and the second insertion rod is slidably inserted into the support plate.

10. The high-speed stamping device for an automobile shock absorber bracket according to claim 7, characterized in that: A connecting rod inclined from top to bottom and towards the side close to the support plate is hinged between the lower end of the pushing block and the corresponding lifting plate. A wedge block for pushing the pushing block to move is fixedly installed at the lower end of the vertical section of the support plate.

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