A multi-station stamping die for automotive panel

Abstract

The present invention provides a multi-station stamping die for automotive panel parts, including a workbench. An upper die is installed on the upper surface of the workbench, and positioning mechanisms are arranged on both sides of the lower die. The upper die is arranged at the top of the lower die. The positioning mechanism includes a plurality of linear guide rails installed on the upper surface of the workbench and arranged in a linear array, sliding blocks slidably connected to the linear guide rails, and a limiting component connected to the top of the sliding blocks. The limiting component includes a support block installed on the upper surface of the sliding block, a positioning rod inserted into the top of the support block, and a vertical plate arranged on one side of the support block and installed on one side surface of the sliding block. A runner is rotatably connected to the side surface of the vertical plate far from the support block through a rotating shaft. The present invention can continuously restrict the movement of the automotive panel parts when the upper die moves downward, so as to keep the positions of the automotive panel parts transferred between various stations.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of automotive panel processing, and particularly relates to a multi-station stamping die for automotive panels. Background Art

[0002] Automotive panels refer to the parts that cover the engine, chassis, and form the cab and body. The existing production of automotive panels requires processing and forming on multiple processing devices.

[0003] According to a multi-station stamping die for automotive panels provided by the patent document with the application number CN201920488430.0, the stamping die includes a convex base and a lifting mechanism, an upper die and a lower die. A frame is fixedly installed at the upper end of the convex base, the lifting mechanism is fixedly installed at the top of the frame, the upper die is fixedly installed at the lower end of the lifting mechanism, and multiple ejector pins for stamping are fixedly installed at the lower end of the upper die. A first groove is formed at the protruding end of the convex base, and multiple support rods are fixedly installed at the bottom of the first groove. The lower die is placed on the multiple support rods, and ejection holes corresponding to the multiple ejector pins are formed through the lower die. By rotating the threaded rod and the threaded column, the upper pressing plate and the side pressing plate can respectively squeeze the two sides and the upper part of the lower die, so as to achieve the purpose of fixing the lower die, avoid the deviation of the lower die, and ensure the quality of the product.

[0004] The above multi-station stamping die sets the devices used in multiple stations at the same station, but the traditional die replacement method leads to frequent die replacement. And the method of moving the workpiece through each station causes the automotive panel to be easily offset during the moving process, thus affecting the stamping process of the automotive panel. Summary of the Invention

[0005] The present invention mainly provides a multi-station stamping die for automotive panels to solve the technical problems raised in the above background art.

[0006] The technical solution adopted by the present invention to solve the above technical problems is as follows:

[0007] A multi-station stamping die for automotive panels includes a workbench, a lower die is installed on the upper surface of the workbench, positioning mechanisms are arranged on both sides of the lower die, and an upper die is arranged at the top of the lower die;

[0008] The positioning mechanism includes a plurality of linear guide rails installed on the upper surface of the workbench and arranged in a linear array, sliding blocks slidably connected to the linear guide rails, and a limit assembly connected to the top of the sliding blocks;

[0009] The limiting assembly includes a support block mounted on the upper surface of the sliding block, a positioning rod plugged into the top of the support block, and a vertical plate provided on one side of the support block and mounted on one side surface of the sliding block, wherein the vertical plate is rotatably connected to a rotating wheel via a rotating shaft on a side surface away from the support block;

[0010] The bottom end of the upper die is connected to the upper surface of the workbench through a guide column, and a plurality of push rods are installed on the lower surface of the upper die.

[0011] Furthermore, a first resistor plate is embedded in the top end of the linear guide rail, and a first conductive block is slidably connected to the top end of the first resistor plate. The first conductive block is embedded in the bottom end of the sliding block. In the present invention, the magnetic repulsion between the first electromagnet and the first permanent magnet is increased, so that the first permanent magnet is pushed more strongly, so that as the positioning rod approaches the automobile cover, the positioning rod can position the automobile cover more effectively, thereby reducing the shaking of the automobile cover during processing.

[0012] Furthermore, the positioning rod includes a rod body plugged into the top end of the support block, and a push rod plugged into one end of the rod body, and one end of the push rod extending into the interior of the rod body is connected to a sliding disk. In the present invention, the push rod is guided by the rod body to slide in a straight line, so that the push rod can stably touch the car cover through the stable extension of the push rod, thereby reducing the movement of the car cover.

[0013] Furthermore, a first permanent magnet is connected to the surface of the sliding disk on one side away from the rod body, and a first electromagnet is provided at one end of the first permanent magnet. The first electromagnet is installed inside the rod body and is electrically connected to the first conductive block. In the present invention, the push rod can adapt to the reverse thrust of the automobile cover while making strong contact with the automobile cover to reduce the movement of the automobile cover.

[0014] Furthermore, one end of the positioning rod is connected to a locker, which includes a locking box installed on one end of the top rod extending to the outside, and spring telescopic rods installed inside the locking box and arranged in an array. In the present invention, a groove that fits the surface of the automobile cover is formed by the extension and contraction of the spring telescopic rods, so that when the groove is fixed, the movement of the automobile cover that fits therewith can be restricted by the groove.

[0015] Further, a second electromagnet is installed at the inner top end of the locking box. A second permanent magnet that abuts against a plurality of the spring telescopic rods is provided at the bottom end of the second electromagnet. A spring is connected to the bottom end of the second permanent magnet. The end of the spring away from the second permanent magnet is installed inside the locking box. In the present invention, through the magnetic repulsion force between the second electromagnet and the second permanent magnet, the second electromagnet is made to push the spring telescopic rod to maintain the groove formed when the spring telescopic rod is in contact with the automotive panel.

[0016] Further, two return rods are installed on one side surface of the sliding block. The end of the return rod away from the sliding block is connected to one side surface of the lower die. The return rod has the same structure as the positioning rod. In the present invention, the magnetic repulsion force between the first electromagnet and the first permanent magnet in the return rod reaches the maximum, so as to facilitate the sliding block to quickly return to its original working position.

[0017] Further, the bottom end of the support block is rotationally connected to a lead screw through a bearing. A slider is connected to the outside of the lead screw through a lead screw nut. The slider is installed at the bottom end of the rod body. In the present invention, when the motor drives the lead screw connected to its output shaft to rotate, the lead screw drives the slider connected to it to move linearly through the lead screw nut. Thus, as the slider moves, the position of the rod body is adjusted.

[0018] Further, a second conductive block is connected to one side surface of the sliding disc close to the rod body. The top end of the second conductive block is slidably connected to a second resistance plate. The second resistance plate is embedded on the housing of the rod body. In the present invention, after the ejector rod restricts the movement of the automotive panel, if the movement of the ejector rod exceeds the threshold value, the positioning ability of the lock can be adjusted in time.

[0019] Further, a plurality of the support blocks at the same end are connected by a connecting rod. In the present invention, by connecting a plurality of support blocks with a connecting rod, the synchronism of the movement of a plurality of support blocks at the same end is increased.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] First, when the upper die moves downward, the present invention can continuously restrict the movement of the automotive panel to maintain the position of the automotive panel at each working station. Specifically, when the first conductive block slides on the top of the first resistance plate, the relative position between the first conductive block and the first resistance plate changes, so that the resistance in the first electromagnet circuit decreases, the current increases, the magnetic field intensity of the first electromagnet increases, the magnetic repulsion force between the first electromagnet and the first permanent magnet increases, so that the first permanent magnet is pushed stronger. Thus, as the positioning rod approaches the automotive panel, the positioning of the automotive panel by the positioning rod is more powerful, reducing the shaking of the automotive panel during processing.

[0022] Second, the present invention accommodates the spring telescopic rod through the locking box, and forms a groove that fits the surface of the automotive panel through the expansion and contraction of the spring telescopic rod, so that when the groove is fixed, the movement of the automotive panel that fits it can be restricted through the groove.

[0023] The present invention will be explained and described in detail below in conjunction with the drawings and specific embodiments. Description of the Drawings

[0024] Figure 1 is a schematic structural diagram of the present invention;

[0025] Figure 2 is a schematic structural diagram of the workbench and positioning mechanism of the present invention;

[0026] Figure 3 is a schematic structural diagram of the limit component of the present invention;

[0027] Figure 4 is a schematic structural diagram of the positioning rod of the present invention;

[0028] Figure 5 is a schematic structural diagram of the lock of the present invention;

[0029] Figure 6 is a schematic internal structural diagram of the support block of the present invention.

[0030] In the figure: 10, workbench; 20, lower die; 30, positioning mechanism; 31, linear guide rail; 32, sliding block; 33, limit component; 331, support block; 332, positioning rod; 3321, rod body; 3322, ejector rod; 3323, sliding disc; 3324, first permanent magnet; 3325, first electromagnet; 3326, second conductive block; 3327, second resistance plate; 333, vertical plate; 334, runner; 335, lock; 3351, locking box; 3352, spring telescopic rod; 3353, second electromagnet; 3354, second permanent magnet; 3355, spring; 336, lead screw; 337, slider; 338, connecting rod; 40, upper die; 41, guide post; 42, push rod. Detailed Embodiments

[0031] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, providing these embodiments is to make the disclosed content of the present invention more thorough and comprehensive.

[0032] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are only for the purpose of illustration.

[0033] Unless otherwise defined, all technical and scientific terms used in this article have the same meaning as commonly understood by those skilled in the technical field to which this invention belongs. The terms used in the specification of this invention are only for the purpose of describing specific embodiments and are not intended to limit this invention. The term "and / or" used in this article includes any and all combinations of one or more of the related listed items.

[0034] For embodiments, please refer to the appendix Figure 1-6 , a multi-station stamping die for automobile body panels, including a workbench 10, an upper surface of the workbench 10 is provided with a lower die 20, positioning mechanisms 30 are arranged on both sides of the lower die 20, and an upper die 40 is arranged at the top of the lower die 20;

[0035] The positioning mechanism 30 includes a plurality of linear guide rails 31 installed on the upper surface of the workbench 10 and arranged in a linear array, sliding blocks 32 slidably connected to the linear guide rails 31, and a limit component 33 connected to the top of the sliding blocks 32;

[0036] The limit component 33 includes a support block 331 installed on the upper surface of the sliding block 32, a positioning rod 332 inserted into the top of the support block 331, and a vertical plate 333 arranged on one side of the support block 331 and installed on one side surface of the sliding block 32. A runner 334 is rotatably connected to the side surface of the vertical plate 333 far from the support block 331 through a rotating shaft;

[0037] The bottom end of the upper die 40 is connected to the upper surface of the workbench 10 through a guide post 41, and a plurality of push rods 42 are installed on the lower surface of the upper die 40.

[0038] Specifically, please refer to the appendix Figure 2 and 3 , a first resistance plate 311 is embedded at the top of the linear guide rail 31, a first conductive block 312 is slidably connected to the top of the first resistance plate 311, and the first conductive block 312 is embedded at the bottom end of the sliding block 32;

[0039] The positioning rod 332 includes a rod body 3321 plugged into the top end of the support block 331, and a top rod 3322 plugged into one end of the rod body 3321. One end of the top rod 3322 extending into the interior of the rod body 3321 is connected to a sliding disk 3323.

[0040] A first permanent magnet 3324 is connected to a surface of the sliding plate 3323 on a side away from the rod 3321. A first electromagnet 3325 is provided at one end of the first permanent magnet 3324. The first electromagnet 3325 is installed inside the rod 3321 and is electrically connected to the first conductive block 312.

[0041] It should be noted that, in this embodiment, when the first conductive block 312 slides on the top of the first resistor plate 311, the relative position between the first conductive block 312 and the first resistor plate 311 changes, thereby reducing the resistance in the circuit of the first electromagnet 3325, increasing the current, and increasing the magnetic field strength of the first electromagnet 3325. This increases the magnetic repulsive force between the first electromagnet 3325 and the first permanent magnet 3324, thereby exerting a stronger force on the first permanent magnet 3324. As a result, as the positioning rod 332 approaches the automobile cover, the positioning rod 332 more effectively positions the automobile cover, thereby reducing the shaking of the automobile cover during processing.

[0042] Furthermore, the rod body 3321 guides the push rod 3322 to slide along a straight line, so that the push rod 3322 can stably touch the car cover through the stable extension of the push rod 3322, thereby reducing the movement of the car cover;

[0043] Furthermore, through the magnetic repulsion between the first permanent magnet 3324 and the first electromagnet 3325 , the push rod 3322 can adapt to the reverse thrust of the automobile cover while making strong contact with the automobile cover, thereby reducing the movement of the automobile cover.

[0044] For details, please refer to the attached Figure 4 and 5 One end of the positioning rod 332 is connected to a locker 335, and the locker 335 includes a locking box 3351 installed at one end of the top rod 3322 extending to the outside, and spring telescopic rods 3352 installed inside the locking box 3351 and arranged in an array;

[0045] A second electromagnet 3353 is mounted on the top of the locking box 3351. A second permanent magnet 3354 is mounted on the bottom of the second electromagnet 3353, which contacts the plurality of spring telescopic rods 3352. A spring 3355 is connected to the bottom of the second permanent magnet 3354. The end of the spring 3355 away from the second permanent magnet 3354 is mounted inside the locking box 3351.

[0046] It should be noted that in this embodiment, the spring telescopic rod 3352 is accommodated in the locking box 3351, and the telescopic movement of the spring telescopic rod 3352 forms a groove that fits the surface of the automotive panel. When the groove is fixed, the movement of the automotive panel that fits with the groove can be restricted through the groove;

[0047] Furthermore, through the magnetic repulsive force between the second electromagnet 3353 and the second permanent magnet 3354, the second electromagnet 3353 is used to push the spring telescopic rod 3352 to maintain the groove formed when the spring telescopic rod 3352 fits with the automotive panel;

[0048] When the magnetic repulsive force between the second electromagnet 3353 and the second permanent magnet 3354 is released, through the elasticity of the spring 3355, the second permanent magnet 3354 is moved away from the spring telescopic rod 3352, and further the spring telescopic rod 3352 is disengaged from the groove of the automotive panel, so as to facilitate the re-adjustment of the position of the spring telescopic rod 3352.

[0049] Specifically, please refer to the attached Figure 2 and 6 , two return rods 321 are installed on one side surface of the sliding block 32. One end of the return rod 321 away from the sliding block 32 is connected to one side surface of the lower die 20. The return rod 321 has the same structure as the positioning rod 332;

[0050] The bottom end of the support block 331 is rotatably connected to a lead screw 336 through a bearing. The outside of the lead screw 336 is connected to a slider 337 through a lead screw nut. The slider 337 is installed at the bottom end of the rod body 3321;

[0051] One side surface of the sliding disk 3323 close to the rod body 3321 is connected to a second conductive block 3326. The top end of the second conductive block 3326 is slidably connected to a second resistance plate 3327. The second resistance plate 3327 is embedded on the housing of the rod body 3321;

[0052] Multiple support blocks 331 at the same end are connected to each other through a connecting rod 338;

[0053] It should be noted that in this embodiment, through the return rod 321 having the same structure as the positioning rod 332, when the positioning rod 332 approaches the automotive panel, the magnetic repulsive force between the first electromagnet 3325 and the first permanent magnet 3324 in the return rod 321 reaches the maximum, so as to facilitate the sliding block 32 to quickly return to its original working position;

[0054] Further, when the motor drives the lead screw 336 connected to its output shaft to rotate, the lead screw 336 drives the slider 337 connected thereto through a lead screw nut to move linearly. Thus, as the slider 337 moves, the position of the rod body 3321 is adjusted. In this way, the distance between the ejector rod 3322 on the rod body 3321 and the ejector rod 3322 at the opposite end can be adapted to the processed automotive panel.

[0055] Further, by changing the relative position between the second conductive block 3326 and the second resistance plate 3327, the position change of the ejector rod 3322 is monitored. After the ejector rod 3322 restricts the movement of the automotive panel, if the movement of the ejector rod 3322 exceeds the threshold, the positioning ability of the lock 335 can be adjusted in a timely manner.

[0056] Further, a plurality of support blocks 331 are connected by a connecting rod 338 to increase the synchronism when the plurality of support blocks 331 at the same end move.

[0057] The specific operation mode of the present invention is as follows:

[0058] The stamping process of the automotive panel is carried out, so that the automotive panel needs to pass through multiple stations of the lower die 20 and the process of the upper die 40 moving downward. As the push rod 42 on the upper die 40 moves downward, the push rod 42 can push the runner 334, so that the runner 334 drives the vertical plate 333, and the vertical plate 333 drives the sliding block 32 to slide along the linear guide 31.

[0059] As the support block 331 on the sliding block 32 approaches the automotive parts at the station, the positioning rod 332 on the support block 331 moves towards the automotive panel. During this process, when the first conductive block 312 slides on the top of the first resistance plate 311, the relative position between the first conductive block 312 and the first resistance plate 311 changes, so that the resistance in the circuit of the first electromagnet 3325 decreases, the current increases, the magnetic field intensity of the first electromagnet 3325 increases, and the magnetic repulsive force between the first electromagnet 3325 and the first permanent magnet 3324 increases, so that the first permanent magnet 3324 is pushed more strongly. Thus, as the positioning rod 332 approaches the automotive panel, the positioning of the automotive panel by the positioning rod 332 is more forceful, reducing the shaking of the automotive panel during processing.

[0060] The spring telescopic rod 3352 is accommodated in the locking box 3351, and a groove that fits the surface of the automotive panel is formed by the telescoping of the spring telescopic rod 3352. When the groove is fixed, the movement of the automotive panel that fits with the groove can be restricted through the groove.

[0061] The present invention has been described exemplarily in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above-mentioned manner. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A multi-station stamping die for automotive panel parts, including a workbench (10), characterized in that, The upper surface of the workbench (10) is provided with a lower die (20), positioning mechanisms (30) are arranged on both sides of the lower die (20), and an upper die (40) is arranged at the top end of the lower die (20); The positioning mechanism (30) includes a plurality of linear guide rails (31) installed on the upper surface of the workbench (10) and arranged in a linear array, a sliding block (32) slidably connected to the linear guide rails (31), and a limit component (33) connected to the top end of the sliding block (32); The limit component (33) includes a support block (331) installed on the upper surface of the sliding block (32), a positioning rod (332) inserted into the top end of the support block (331), and a vertical plate (333) arranged on one side of the support block (331) and installed on one side surface of the sliding block (32). A runner (334) is rotatably connected to the side surface of the vertical plate (333) away from the support block (331) through a rotating shaft; The bottom end of the upper die (40) is connected to the upper surface of the workbench (10) through a guide post (41), and a plurality of push rods (42) are installed on the lower surface of the upper die (40); A first resistor plate (311) is embedded at the top end of the linear guide rail (31), a first conductive block (312) is slidably connected to the top end of the first resistor plate (311), and the first conductive block (312) is embedded at the bottom end of the sliding block (32); The positioning rod (332) includes a rod body (3321) inserted into the top end of the support block (331), and a top rod (3322) inserted into one end of the rod body (3321). A sliding disc (3323) is connected to the end of the top rod (3322) extending into the rod body (3321); A first permanent magnet (3324) is connected to the side surface of the sliding disc (3323) away from the rod body (3321), a first electromagnet (3325) is arranged at one end of the first permanent magnet (3324), and the first electromagnet (3325) is installed inside the rod body (3321) and electrically connected to the first conductive block (312); Two return rods (321) are installed on one side surface of the sliding block (32), the end of the return rod (321) away from the sliding block (32) is connected to one side surface of the lower die (20), and the return rod (321) has the same structure as the positioning rod (332).

2. The multi-station stamping die for an automotive panel according to claim 1, wherein One end of the positioning rod (332) is connected with a locking device (335). The locking device (335) includes a locking box (3351) installed at the end of the top rod (3322) extending to the outside, and spring telescopic rods (3352) installed inside the locking box (3351) and arranged in an array.

3. The multi-station stamping die for automotive panel according to claim 2, characterized in that, At the inner top of the locking box (3351), a second electromagnet (3353) is installed. At the bottom end of the second electromagnet (3353), there is a second permanent magnet (3354) which abuts against a plurality of the spring telescopic rods (3352). At the bottom end of the second permanent magnet (3354), a spring (3355) is connected. One end of the spring (3355) away from the second permanent magnet (3354) is installed inside the locking box (3351).

4. The multi-station stamping die for an automotive panel according to claim 1, characterized in that, At the bottom end of the support block (331), a lead screw (336) is rotatably connected through a bearing. Outside the lead screw (336), a slider (337) is connected through a lead screw nut. The slider (337) is installed at the bottom end of the rod body (3321).

5. A multi-station stamping die for automotive body panels according to claim 1, characterized in that, On one side surface of the sliding disc (3323) close to the rod body (3321), a second conductive block (3326) is connected. At the top end of the second conductive block (3326), a second resistance plate (3327) is slidably connected. The second resistance plate (3327) is embedded on the housing of the rod body (3321).

6. The multi-station stamping die for an automotive panel according to claim 1, characterized in that, Between multiple support blocks (331) at the same end, they are connected through a connecting rod (338).

Images