Stamping die for machining automobile rear wall reinforcing plate

Abstract

The invention relates to the technical field of detection devices, and provides an automobile rear wall reinforcing plate machining stamping die which comprises a workbench and a lower die fixed to the top end of the workbench. A top plate is installed at the top of the workbench at the top end of the lower mold, an upper mold is installed at the bottom end of the top plate, an air cylinder is installed at the top end of the top plate, and an ejection structure is arranged at the bottom of the lower mold. Through the arrangement of the ejection structure and lantern rings arranged on the two sides of the upper die, after a workpiece is stamped and in the upward moving process of the upper die, rotating force is generated through cooperation between threads, under cooperation of a sleeve, a lead screw and other assemblies, lifting of a baffle is achieved, the workpiece on the top of the bottom plate is ejected out, a worker can take or replace the workpiece conveniently, and the working efficiency is improved. And meanwhile, when the upper die moves downwards, the bottom plate synchronously drives the workpiece to move downwards into the lower die, so that the stamping die for machining the automobile rear wall reinforcing plate is convenient to take and replace the workpiece, the working efficiency is improved, and the production period is shortened.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts processing, in particular to a stamping die for processing an automobile rear enclosure reinforcement plate. Background Art

[0002] The rear reinforcement plate of an automobile is an important component in the automobile structure. It plays an important role in improving the safety performance of the vehicle, strengthening the body structure and improving durability. With the continuous development of automobile technology, the rear reinforcement plate of an automobile will also continue to innovate and improve to meet higher standards of safety requirements and market demand. In the process of processing the rear reinforcement plate of an automobile, a special stamping die is required. The cavity design of the die accurately matches the shape and size of the rear reinforcement plate to ensure that the stamped product meets the requirements.

[0003] To this end, the patent with publication number CN111531044A discloses a stamping device and a stamping method for automobile parts processing, including a workbench, and also includes: a stamping die, which is detachably arranged at the top center position of the workbench; a support rod, four of which are fixedly connected to the top four corners of the workbench; a mounting plate, which is detachably arranged at the top of the support rod; a lifting mechanism, which is detachably arranged at the top rear side of the mounting plate; a hydraulic cylinder, which is screwed to the top center position of the mounting plate; a replacement mechanism, which is detachably arranged at the bottom end of the hydraulic cylinder. The present invention does not require manual control by the staff, has low labor intensity, ensures that the parts are placed horizontally for stamping, and guarantees the stamping quality. In addition, for the stamping of different parts, it is easy to replace the punch to achieve the stamping forming of a variety of parts. It is highly practical and flexible to use, which greatly meets the stamping needs of automobile parts.

[0004] The stamping device mentioned above is convenient for replacing the punch and achieving the stamping forming of various parts without the need for manual control by the staff. However, when the workpiece is stamped, it is necessary to take the workpiece out of the groove of the lower die, which will cause inconvenience to the staff and require more time and manpower to operate, thereby increasing the production cycle. It is also inconvenient to pre-limit the workpiece while stamping, causing the workpiece to shift position due to the impact force, resulting in the stamped product not meeting the design requirements. At the same time, the workpiece position shift may also lead to increased friction and collision between the die and the workpiece, thereby accelerating the wear and even damage of the die. Summary of the invention

[0005] The purpose of the present invention is to provide a stamping die for processing a rear reinforcement plate of an automobile, so as to solve the defects of the existing stamping die for processing the rear reinforcement plate of an automobile, that is, it is inconvenient to take out materials and to limit positions.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a stamping die for processing a rear reinforcement plate of an automobile, comprising a workbench and a lower die fixed at the top thereof; a top plate is installed on the top of the workbench at the top of the lower die, and an upper die is installed at the bottom of the top plate, a cylinder is installed on the top of the top plate, an ejection structure is arranged at the bottom of the lower die, and a limiting structure is arranged inside the lower die; the ejection structure comprises a support plate, a right sleeve rod, a first large spur gear, a second large spur gear and a second pulley mechanism; the support plate is arranged inside the lower die, a first large spur gear is installed at the bottom of the support plate, and a second large spur gear is installed on one side of the first large spur gear, a second pulley mechanism is connected to the top of the second large spur gear, and a right sleeve rod is installed at one end of the second pulley mechanism away from the second large spur gear.

[0007] Preferably, pillars are fixed on both sides of the bottom end of the top plate, and slide grooves are provided on the tops of the pillars, and movable grooves are provided at both ends of the slide grooves.

[0008] Preferably, sliders are installed on both sides of the upper mold, and rings are provided inside the sliders. Pulleys are provided at both ends of the rings, and a sliding structure is formed between the pulleys and the movable grooves.

[0009] Preferably, the limiting structure includes a left sleeve rod, a first right-angle gear, a first pulley mechanism, a second right-angle gear, a limiting block, a connecting shaft and a movable plate. The left sleeve rod is installed on one side of the top of the workbench. The outside of the left sleeve rod is provided with an external thread, and the left sleeve rod and the ring are threadedly connected. The first right-angle gear is installed at the bottom of the left sleeve rod.

[0010] Preferably, a second right-angle gear is installed on the outer side of the lower mold on one side of the first right-angle gear, and the second right-angle gear and the first right-angle gear are meshingly connected, one side of the second right-angle gear is connected to a first pulley mechanism, and a connecting shaft passes through the lower mold at one end of the first pulley mechanism, movable plates are provided on both sides of the connecting shaft, and a limiting block is provided on one side of the movable plate.

[0011] Preferably, pressure plates are installed at both ends of the limit block, and a movable shaft passes through the top of the pressure plate, a connecting plate is fixed at the bottom between the pressure plates, and a spring is provided on one side of the connecting plate.

[0012] Preferably, the side walls of the limit blocks on one side of the spring are penetrated by extrusion blocks, and a sliding structure is formed between the extrusion blocks and the limit blocks, and rollers are installed on the opposite sides of the limit blocks, and the top and bottom ends of the rollers are installed.

[0013] Preferably, a rack is provided at the bottom end of the movable plate, and a small spur gear is installed outside the connecting shaft at the bottom of the rack, the small spur gear and the rack are meshingly connected, a slide rail is provided on the side of the movable plate relative to the limit block, and a sliding structure is formed between the slide rail and the roller, and grooves are provided at the top and bottom ends of the slide rail, and a sliding structure is formed between the grooves.

[0014] Preferably, baffles are welded at the corners of the top of the support plate, and bottom plates are welded on the inner sides of the baffles, a screw rod is installed at the bottom end of the support plate, and a sleeve is installed on the top of the workbench at the bottom of the screw rod, and the sleeve and the screw rod are threadedly connected.

[0015] Preferably, the first large spur gear and the second large spur gear are meshingly connected, the top of the right sleeve rod is provided with an external thread, and the right sleeve rod and the sleeve ring are threadedly connected.

[0016] Compared with the prior art, the invention has the following beneficial effects: the stamping die for processing the automobile rear wall reinforcement plate can place and limit the workpiece while the upper die is pressed downward to stamp the workpiece, and when the stamping is completed and the upper die is moved upward, the workpiece is loosened and ejected synchronously, so that it is convenient to take and replace, and it is convenient to limit the workpiece, and it is fixed and stable;

[0017] By providing an ejection structure, the collars provided on both sides of the upper mold are threadedly connected with the external threads on the top of the right sleeve rod. After the workpiece is stamped, the upper mold moves upward, and a rotation force is generated by the cooperation between the threads. With the cooperation of the sleeve, the screw rod and other components, the baffle is lifted, and the workpiece on the top of the bottom plate is ejected, which is convenient for the staff to take or replace. At the same time, when the upper mold moves downward, the bottom plate synchronously drives the workpiece to move downward to the inside of the lower mold, so that the stamping mold for processing the rear reinforcement plate of the automobile is convenient for taking and replacing the workpiece, improving the work efficiency and reducing the production cycle.

[0018] Furthermore, during the continuous downward movement of the upper mold, the outer thread on the ring and the left sleeve rod cooperates to generate a rotational force, and then, driven by the right-angle gear set, the movable plate is pushed to squeeze the limit block inward to clamp the two sides of the workpiece to complete the lateral limit of the workpiece. At the same time, while the limit block limits the workpiece, the extrusion block moves inward through the squeezing force with the workpiece, driving the pressure plate to flip and press the top ends of both sides of the workpiece to achieve longitudinal limit of the workpiece, so that the stamping die for processing the rear reinforcement plate of the automobile can complete the limit of the workpiece while stamping, and it is a two-way limit, which avoids deformation of the workpiece due to uneven force, is conducive to pressing the workpiece completely into the cavity of the lower mold, and ensures the stamping effect of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the upper die in the stamping state of the present invention;

[0021] Figure 3 It is a three-dimensional schematic diagram of the workbench of the present invention in a half-sectioned top view;

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the workbench of the present invention in a half-section state when viewed from above;

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the lower mold in a half-cut state of the present invention;

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of the upper mold of the present invention;

[0025] Figure 7 It is a schematic diagram of the three-dimensional structure of the connecting shaft of the present invention;

[0026] Figure 8 It is a schematic diagram of the three-dimensional structure of the movable panel of the present invention from the left side;

[0027] Fig. 9 It is a schematic diagram of the three-dimensional structure of the movable plate of the present invention from the right side;

[0028] Fig.10 It is a schematic diagram of the three-dimensional structure of the limit block of the present invention in a half-section state when viewed from above;

[0029] Fig.11 It is a schematic diagram of the three-dimensional structure of the limiting block of the present invention in a half-sectioned top view.

[0030] Explanation of the reference numerals in the figure: 1. workbench; 2. lower mold; 3. cylinder; 4. top plate; 41. pillar; 42. slide groove; 43. movable groove; 5. upper mold; 51. slider; 52. sleeve ring; 53. pulley; 6. limit structure; 61. left sleeve rod; 62. first right-angle gear; 63. first pulley mechanism; 64. second right-angle gear; 65. limit block; 651. pressure plate; 652. roller; 653. extrusion block ; 654, spring; 655, movable shaft; 656, connecting plate; 66, connecting shaft; 67, movable plate; 671, rack; 672, small spur gear; 673, slide rail; 674, groove; 7, ejection structure; 71, support plate; 711, sleeve; 712, screw rod; 713, baffle; 714, bottom plate; 72, right sleeve rod; 73, first large spur gear; 74, second large spur gear; 75, second pulley mechanism. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1-Figure 11 The present invention provides a stamping die for processing a rear reinforcement plate of an automobile, comprising a workbench 1 and a lower die 2 fixed at its top; a top plate 4 is installed on the top of the workbench 1 at the top of the lower die 2, and an upper die 5 is installed at the bottom of the top plate 4, a cylinder 3 is installed on the top of the top plate 4, an ejection structure 7 is arranged at the bottom of the lower die 2, and a limiting structure 6 is arranged inside the lower die 2; pillars 41 are fixed on both sides of the bottom end of the top plate 4, and a slide groove 42 is arranged on the top of the pillar 41, and movable grooves 43 are arranged at both ends of the slide groove 42, sliders 51 are installed on both sides of the upper die 5, and a sleeve ring 52 is arranged inside the slider 51, and pulleys 53 are arranged at both ends of the sleeve ring 52, and a sliding structure is formed between the pulley 53 and the movable groove 43, and the ejection structure 7 comprises a support plate 71, a right sleeve rod 72, a first large spur gear 73, a second large spur gear 74 and a first sleeve rod 75. Two pulley mechanisms 75; the support plate 71 is arranged inside the lower mold 2, the first large spur gear 73 is installed at the bottom of the support plate 71, and the second large spur gear 74 is installed on one side of the first large spur gear 73, the second pulley mechanism 75 is connected to the top of the second large spur gear 74, and the right sleeve rod 72 is installed at the end of the second pulley mechanism 75 away from the second large spur gear 74, the first large spur gear 73 and the second large spur gear 74 are meshed and connected, the top of the right sleeve rod 72 is provided with an external thread, and the right sleeve rod 72 and the collar 52 are threadedly connected, the corners of the top of the support plate 71 are welded with baffles 713, and the inner side of the baffles 713 is welded with bottom plates 714, the bottom end of the support plate 71 is installed with a screw rod 712, and the top of the workbench 1 at the bottom of the screw rod 712 is installed with a sleeve 711, and the sleeve 711 and the screw rod 712 are threadedly connected;

[0033] Reference Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, when the device is used, the workpiece is first placed on the top of the bottom plate 714, with the baffle 713 close to its corner, and then the cylinder 3 is started to drive the upper mold 5 connected thereto to move downward, and the sliders 51 on both sides thereof slide inside the pillar 41, and the pulleys 53 arranged at both ends of the sliders 51 make the upper mold 5 more smooth and flexible when moving, and the resistance of the cylinder 3 is reduced. At the same time, the collar 52 moves downward, and in cooperation with the external thread on the top of the right sleeve rod 72, the right sleeve rod 72 rotates when the collar 52 moves downward, and the second large spur gear 74 is driven to rotate synchronously through the second pulley mechanism 75, and the second large spur gear 74 The first large spur gear 73 is meshed with the first large spur gear 73, so that the first large spur gear 73 and the sleeve 711 connected thereto rotate. The sleeve 711 and the screw rod 712 at the top thereof are threadedly connected. When the sleeve 711 rotates, the support plate 71 and the lower mold 2 cannot rotate due to the lateral limit between the support plate 71 and the lower mold 2, thereby driving the screw rod 712 and the support plate 71 to move downward, so that the workpiece on the top of the bottom plate 714 moves to the inside of the lower mold 2. The baffle plate 713 and the bottom plate 714 are tightly fitted with the inner wall of the lower mold 2. After the collar 52 moves down to the bottom of the external thread at the top of the right sleeve rod 72, the bottom plate 714 just moves down to the inside of the lower mold 2 to complete the placement of the workpiece.

[0034] The limiting structure 6 includes a left sleeve rod 61, a first right-angle gear 62, a first pulley mechanism 63, a second right-angle gear 64, a limiting block 65, a connecting shaft 66 and a movable plate 67. The left sleeve rod 61 is installed on one side of the top of the workbench 1. The outside of the left sleeve rod 61 is provided with an external thread, and the left sleeve rod 61 and the sleeve ring 52 are threadedly connected. The first right-angle gear 62 is installed at the bottom of the left sleeve rod 61. The second right-angle gear 64 is installed on the outer side of the lower mold 2 on one side of the first right-angle gear 62, and the second right-angle gear 64 and the first right-angle gear 62 are meshed and connected. One side of the second right-angle gear 64 is connected to the first pulley mechanism 63, and the lower mold 2 at one end of the first pulley mechanism 63 is penetrated by a connecting shaft 66. Both sides of the connecting shaft 66 are provided with movable plates 67, and one side of the movable plate 67 is provided with a limiting block 65. Both ends of the inner part of the limiting block 65 are provided with a pressing plate 651, and the pressing plate A movable shaft 655 runs through the top of 651, a connecting plate 656 is fixed at the bottom between the pressure plates 651, and a spring 654 is arranged on one side of the connecting plate 656, and an extrusion block 653 runs through the side wall of the limit block 65 on the side of the spring 654, and a sliding structure is formed between the extrusion block 653 and the limit block 65, a roller 652 is installed on the opposite side of the limit block 65, and 657 is installed on the top and bottom of the roller 652, a rack 671 is arranged at the bottom end of the movable plate 67, and a small spur gear 672 is installed on the outside of the connecting shaft 66 at the bottom of the rack 671, and the small spur gear 672 and the rack 671 are meshed and connected, a slide rail 673 is arranged on the side of the movable plate 67 opposite to the limit block 65, and a sliding structure is formed between the slide rail 673 and the roller 652, a groove 674 is arranged on the top and bottom of the slide rail 673, and a sliding structure is formed between the groove 674 and 657;

[0035] Reference Figure 4 , Figure 5 , Figure 7 , Figure 8 , Fig.10 and Fig.11As shown, when the device is in use, the upper mold 5 continues to move downward, and when the left collar 52 passes through the external thread on the left sleeve rod 61, the left sleeve rod 61 rotates, and the first right-angle gear 62 fixed thereto rotates synchronously, and the first right-angle gear 62 and the second right-angle gear 64 mesh with each other, so that the second right-angle gear 64 rotates, and the connecting shaft 66 and the second right-angle gear 64 are connected through the first pulley mechanism 63, so that the second right-angle gear 64 rotates and the connecting shaft 66 rotates at the same time, driving the small spur gears 672 on both sides thereof to rotate, and the small spur gears 672 mesh with the rack 671, so that the movable plate 67 moves toward the front end. Due to the arc design of the movable plate 67, when it continues to move forward, it drives the slide rail 673 to slide over the roller 652, thereby pushing the limit block 65 to continuously move relatively with the arc of the side wall of the movable plate 67 as a fulcrum, and approach the workpiece, so as to achieve the extrusion limit of the workpiece. When the limit block 65 is constantly approaching the workpiece, the workpiece exerts a pressure on the extrusion block 653, causing the extrusion block 653 to shrink to the inside of the limit block 65, thereby pushing the connecting plate 656 to drive one end of the pressure plate 651 to flip to one side, causing the pressure plate 651 to flip with the movable axis 655 as the center point, so that the other end of the pressure plate 651 presses downward on the workpiece to play a longitudinal limit. The upper mold 5 continues to move downward. While the workpiece completes the limit, the upper mold 5 overlaps with the lower mold 2 to complete the stamping work, and then the cylinder 3 is started to drive the upper mold 5 to move upward, so that the left sleeve rod 61 reverses the movable plate 67 to reset. Because 657 is set inside the groove 674, when the movable plate 67 is reset, the limit block 65 can be pulled to slide and reset. After the workpiece is opened, the upper mold 5 continues to rise, and the right sleeve rod 72 reverses the support plate 71 to rise, driving the workpiece to rise, thereby facilitating the staff to take and replace the new workpiece.

[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A stamping die for processing a rear reinforcement plate of an automobile, comprising a workbench (1) and a lower die (2) fixed at the top thereof; Features: A top plate (4) is installed on the top of the workbench (1) at the top of the lower mold (2), and an upper mold (5) is installed at the bottom of the top plate (4), a cylinder (3) is installed at the top of the top plate (4), an ejection structure (7) is arranged at the bottom of the lower mold (2), and a limiting structure (6) is arranged inside the lower mold (2); The ejection structure (7) comprises a support plate (71), a right sleeve rod (72), a first large spur gear (73), a second large spur gear (74) and a second pulley mechanism (75); The support plate (71) is arranged inside the lower mold (2), a first large spur gear (73) is installed at the bottom of the support plate (71), and a second large spur gear (74) is installed on one side of the first large spur gear (73), a second pulley mechanism (75) is connected to the top of the second large spur gear (74), and a right sleeve rod (72) is installed at one end of the second pulley mechanism (75) away from the second large spur gear (74).

2. The stamping die for processing the rear reinforcement plate of an automobile according to claim 1, characterized in that: Support columns (41) are fixed on both sides of the bottom end of the top plate (4), and a slide groove (42) is provided on the top of each support column (41), and movable grooves (43) are provided at both ends of each slide groove (42).

3. The stamping die for processing the rear reinforcement plate of an automobile according to claim 1, characterized in that: Slide blocks (51) are installed on both sides of the upper mold (5), and sleeve rings (52) are arranged inside the slide blocks (51). Pulleys (53) are arranged at both ends of the sleeve rings (52), and a sliding structure is formed between the pulleys (53) and the movable grooves (43).

4. The stamping die for processing a rear reinforcement plate of an automobile according to claim 1, characterized in that: The limiting structure (6) comprises a left sleeve rod (61), a first right-angle gear (62), a first pulley mechanism (63), a second right-angle gear (64), a limiting block (65), a connecting shaft (66) and a movable plate (67); the left sleeve rod (61) is installed on one side of the top of the workbench (1); an external thread is provided on the outside of the left sleeve rod (61), and the left sleeve rod (61) and the sleeve ring (52) are threadedly connected; the first right-angle gear (62) is installed at the bottom of the left sleeve rod (61).

5. The stamping die for processing the rear reinforcement plate of an automobile according to claim 4, characterized in that: A second right-angle gear (64) is installed on the outer side of the lower mold (2) on one side of the first right-angle gear (62), and the second right-angle gear (64) and the first right-angle gear (62) are meshingly connected. A first pulley mechanism (63) is connected to one side of the second right-angle gear (64), and a connecting shaft (66) passes through the lower mold (2) at one end of the first pulley mechanism (63). Movable plates (67) are provided on both sides of the connecting shaft (66), and a limiting block (65) is provided on one side of the movable plate (67).

6. The stamping die for processing the rear reinforcement plate of an automobile according to claim 5, characterized in that: Both ends of the limit block (65) are installed with pressure plates (651), and a movable shaft (655) passes through the top of the pressure plate (651). A connecting plate (656) is fixed at the bottom between the pressure plates (651), and a spring (654) is provided on one side of the connecting plate (656).

7. The stamping die for processing the rear reinforcement plate of an automobile according to claim 6, characterized in that: The side wall of the limit block (65) on one side of the spring (654) is penetrated by an extrusion block (653), and a sliding structure is formed between the extrusion block (653) and the limit block (65). The side opposite to the limit block (65) is installed with a roller (652), and the top and bottom ends of the roller (652) are installed with (657).

8. The stamping die for processing the rear reinforcement plate of an automobile according to claim 7, characterized in that: The bottom end of the movable plate (67) is provided with a rack (671), and a small spur gear (672) is installed outside the connecting shaft (66) at the bottom of the rack (671), and the small spur gear (672) and the rack (671) are meshingly connected. A slide rail (673) is provided on the side of the movable plate (67) relative to the limit block (65), and a sliding structure is formed between the slide rail (673) and the roller (652), and grooves (674) are provided at the top and bottom ends of the slide rail (673), and a sliding structure is formed between the groove (674) and (657).

9. The stamping die for processing a rear reinforcement plate of an automobile according to claim 1, characterized in that: Baffles (713) are welded at the corners of the top of the support plate (71), and bottom plates (714) are welded on the inner sides of the baffles (713). A screw rod (712) is installed at the bottom end of the support plate (71), and a sleeve (711) is installed at the top of the workbench (1) at the bottom of the screw rod (712). The sleeve (711) and the screw rod (712) are threadedly connected.

10. The stamping die for processing a rear reinforcement plate of an automobile according to claim 1, characterized in that: The first large spur gear (73) and the second large spur gear (74) are meshedly connected, the top of the right sleeve rod (72) is provided with an external thread, and the right sleeve rod (72) and the sleeve ring (52) are threadedly connected.

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