A stamping device with sheet positioning structure

Abstract

This utility model discloses a stamping device with a thin plate positioning structure, relating to the technical field of stamping feeding devices. The utility model includes a base, a mounting plate fixedly connected to the top of the base, a stamping template disposed on the top of the base, and a first positioning mechanism disposed on the top of the mounting plate. The first positioning mechanism includes a conveying plate disposed on the top of the mounting plate, a telescopic component disposed inside the conveying plate, and auxiliary rollers disposed on the top of the telescopic component. This utility model uses a second hydraulic cylinder to drive a moving plate and a moving block to move synchronously along a slide bar, causing the auxiliary rollers on both sides to move in opposite directions, adapting them to thin plates of different widths and continuously contacting and guiding the edges of the thin plates. This achieves dynamic centering and limiting during the feeding process, effectively avoiding lateral displacement of the thin plates due to inertia or deviation, and ensuring that the thin plates enter the stamping area with a precise and stable posture.

Description

Technical Field

[0001] This utility model belongs to the technical field of stamping feeding devices, and in particular relates to a stamping device with a thin plate positioning structure. Background Technology

[0002] Sheet stamping is a key forming process in the processing of thin metal sheets, widely used in automobile manufacturing, aerospace, electronics, and daily hardware. The stamping device applies pressure to the thin metal sheet through a die, causing it to undergo plastic deformation or separation, thereby obtaining parts of the required shape and size. In this process, ensuring the precise positioning of the sheet at the stamping station is a prerequisite for ensuring consistent product quality and processing accuracy. If the sheet is offset or mispositioned, it may result in dimensional errors or incorrect punching positions, or even die damage, equipment downtime, or even production safety accidents.

[0003] Existing stamping devices still have some problems during use. For example, the feeding and positioning usually rely on simple stop blocks or side guide rails. The positioning structure has a single function and often only focuses on the final limit during stamping, while neglecting the guidance and centering of the sheet metal during the feeding process. When the sheet metal is conveyed into the mold area, it is very easy to deviate due to inertia, belt slippage, or its own stress. By the time it reaches the end stop, its posture has already tilted. At this time, it is too late to correct the deviation, which directly affects the stamping accuracy of the first workpiece.

[0004] To address these issues, we provide a stamping apparatus with a thin-plate positioning structure. Utility Model Content

[0005] The purpose of this utility model is to provide a stamping device with a thin plate positioning structure. Through the cooperation of the first positioning mechanism and the second positioning mechanism, the problem of the existing stamping device, which usually relies on a simple stop block or side guide rail for feeding and positioning, and has a single positioning structure function is solved.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a stamping device with a thin plate positioning structure, comprising a base, an mounting plate fixedly connected to the top of the base, a stamping template disposed on the top of the base, a first positioning mechanism disposed on the top of the mounting plate, the first positioning mechanism comprising a conveying plate disposed on the top of the mounting plate, a telescopic component disposed inside the conveying plate, and an auxiliary roller disposed on the top of the telescopic component, and a second positioning mechanism disposed on the top of the conveying plate, the second positioning mechanism comprising a positioning box fixedly connected to the top of the conveying plate, a first hydraulic cylinder fixedly connected to the top of the positioning box, a pushing component disposed inside the positioning box, and a limiting component disposed inside the positioning box.

[0008] The present invention is further configured such that a mounting groove is provided on the top of the mounting plate, a mounting insert is inserted into the mounting groove, and the mounting insert is fixedly connected to the bottom of the conveyor plate.

[0009] The present invention is further configured such that a detection groove is provided on the front side of the conveyor plate, and a rotary encoder is fixedly connected inside the detection groove. The rotary encoder is fixedly connected to a measuring roller through a coupling.

[0010] The present invention is further configured such that the telescopic component includes a second hydraulic cylinder fixedly connected inside the conveyor plate, a movable plate fixedly connected to the output end of the second hydraulic cylinder, and a movable block fixedly connected to one side of the movable plate.

[0011] The present invention is further configured such that two slide rods are fixedly connected inside the conveyor plate.

[0012] The present invention is further configured such that the pushing assembly includes a pushing plate fixedly connected to the output end of the first hydraulic cylinder, and vertical plates fixedly connected to both sides of the bottom of the pushing plate.

[0013] The present invention is further configured such that the limiting component includes an electromagnetic brake disposed inside the positioning box, and a limiting roller fixedly connected inside the electromagnetic brake.

[0014] The present invention has the following beneficial effects.

[0015] 1. This utility model uses a second hydraulic cylinder to drive the moving plate and moving block to move synchronously along the slide bar, which drives the auxiliary rollers on both sides to move in opposite directions, so that they can adapt to thin plates of different widths and continuously contact and guide the edges of the thin plates. This realizes dynamic centering and limiting during the feeding process, effectively avoiding lateral displacement of the thin plates due to inertia or deviation, and ensuring that the thin plates enter the stamping area with a precise and stable posture.

[0016] 2. This utility model uses a first hydraulic cylinder to push the push plate and the limiting assembly to descend as a whole, so that the limiting roller contacts the sheet material. After the detection is in place, the electromagnetic brake is energized to lock it instantly, realizing the rapid switching of the limiting roller from a free rotation support state to a rigid clamping state. It can provide a huge vertical clamping force when the stamping head presses down, effectively suppressing the slippage, warping and vibration of the thin plate, providing an extremely stable and reliable positioning reference for stamping, and effectively improving the dimensional consistency and shape accuracy of stamped parts.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 This is a perspective view of a stamping device with a thin-plate positioning structure.

[0020] Figure 2 This is a diagram showing the installation process of a conveyor plate in a stamping device with a thin-plate positioning structure.

[0021] Figure 3 This is a structural diagram of the telescopic component in a stamping device with a thin-plate positioning structure.

[0022] Figure 4 This is a structural diagram of the push assembly in a stamping device with a thin-plate positioning structure.

[0023] Figure 5 This is a structural diagram of the limiting component in a stamping device with a thin plate positioning structure.

[0024] In the attached diagram: 1. Base; 2. Mounting plate; 3. Stamping template; 4. First positioning mechanism; 41. Conveying plate; 42. Telescopic assembly; 421. Second hydraulic cylinder; 422. Moving plate; 423. Moving block; 43. Auxiliary roller; 5. Second positioning mechanism; 51. Positioning box; 52. First hydraulic cylinder; 53. Pushing assembly; 531. Pushing plate; 532. Vertical plate; 54. Limiting assembly; 541. Electromagnetic brake; 542. Limiting roller; 6. Mounting insert plate; 7. Measuring roller; 8. Slide rod. Detailed Implementation

[0025] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments. Example

[0026] Please see Figures 1-5 This utility model is a stamping device with a thin plate positioning structure, including a base 1, an mounting plate 2 fixedly connected to the top of the base 1, a stamping template 3 provided on the top of the base 1, a first positioning mechanism 4 provided on the top of the mounting plate 2, the first positioning mechanism 4 including a conveying plate 41 provided on the top of the mounting plate 2, a telescopic component 42 provided inside the conveying plate 41, and an auxiliary roller 43 provided on the top of the telescopic component 42, a second positioning mechanism 5 provided on the top of the conveying plate 41, the second positioning mechanism 5 including a positioning box 51 fixedly connected to the top of the conveying plate 41, a first hydraulic cylinder 52 fixedly connected to the top of the positioning box 51, a pushing component 53 provided inside the positioning box 51, and a limiting component 54 provided inside the positioning box 51.

[0027] Specifically: The first positioning mechanism 4 centers and guides the sheet metal during the conveying process, preventing lateral deviation during loading. The second hydraulic cylinder 421 in the telescopic assembly 42 is activated, driving the moving plate 422 and the connected moving block 423 to move in opposite directions along the slide bar 8. The moving block 423 drives the auxiliary roller 43 on its top to move synchronously, thereby adjusting the distance between the two auxiliary rollers 43 so that they are in contact with the two sides of the sheet metal. During the sheet metal conveying process, the two auxiliary rollers 43 always maintain contact with the edges of the sheet metal, playing a guiding and limiting role, ensuring that the sheet metal enters the stamping area in the correct position and posture. The second positioning mechanism 5 is used to center and guide the sheet metal before stamping. The thin sheet is pressed and fixed to prevent it from slipping or warping during feeding and stamping. When the thin sheet is fed, the first hydraulic cylinder 52 pushes the push plate 531 downward, causing the entire push assembly 53 and its lower limiting assembly 54 to descend until the limiting roller 542 contacts the surface of the thin sheet. During the feeding and conveying stage, the electromagnetic brake 541 is de-energized, and the limiting roller 542 can rotate freely, only playing the role of assisting in pressing and preventing the thin sheet from warping. Once the thin sheet reaches the target position, the electromagnetic brake 541 is immediately energized to brake, instantly locking the limiting roller 542, changing it from a rotating state to a stationary state, thereby forcefully pressing and fixing the thin sheet, providing a stable and reliable positioning base for the stamping head to descend and stamp. Example

[0028] Please see Figures 1-5Based on embodiment 1, the top of the mounting plate 2 has a mounting groove, into which a mounting insert 6 is inserted. The mounting insert 6 is fixedly connected to the bottom of the conveyor plate 41. A detection groove is provided on the front side of the conveyor plate 41, and a rotary encoder is fixedly connected inside the detection groove. The rotary encoder is fixedly connected to a measuring roller 7 via a coupling. The rotary encoder model is Omron E6B2-CWZ6C. The measuring roller 7 has a steel core and is covered with a dark green polyurethane adhesive layer with a hardness of 85° Shore A. The telescopic component 42 includes a second hydraulic cylinder 421 fixedly connected inside the conveyor plate 41. The second hydraulic cylinder 421 is a double-rod hydraulic cylinder. A moving plate 422 is fixedly connected to the output end of the second hydraulic cylinder 421. A moving block 423 is fixedly connected to one side of the moving plate 422. An auxiliary roller 43 is movably connected to the moving block 423 via a bearing. Adjustment slots adapted to the auxiliary roller 43 are provided on both sides of the top of the moving plate 422. A sliding rod 8 is fixedly connected inside the conveyor plate 41. The number of sliding rods 8 is... There are two moving blocks 423 with sliding through holes inside. The sliding rod 8 is located inside the sliding through holes. The pushing assembly 53 includes a pushing plate 531 fixedly connected to the output end of the first hydraulic cylinder 52, and vertical plates 532 fixedly connected to both sides of the bottom of the pushing plate 531. The bottom of the positioning box 51 is open. The limiting assembly 54 includes an electromagnetic brake 541 set inside the positioning box 51. The working principle of the electromagnetic brake 541 is based on the interaction of electromagnetic induction and mechanical spring force. Its significant feature is that it brakes automatically when power is lost and releases when power is supplied. This is existing technology, and this solution will not elaborate further. Moreover, those skilled in the art can clearly understand the working principle. The limiting roller 542 is fixedly connected inside the electromagnetic brake 541. The housing of the electromagnetic brake 541 is fixedly connected to one side of the vertical plate 532. The rotating shaft of the limiting roller 542 is connected to the output shaft of the electromagnetic brake 541, which controls the rotation or braking. The electromagnetic brake 541 is a Sumitomo EB-50 model.

[0029] Specifically: The stamping template 3 and conveyor plate 41 are fixed in the stamping device by the mounting groove and mounting plate 6. The measuring roller 7 passively rotates as the sheet moves, driven by the rotary encoder. The rotary encoder converts the number of rotations of the shaft into electrical pulse signals in real time and outputs them. The moving length of the sheet can be calculated, thus determining the stamping position. The telescopic component 42 extends the second hydraulic cylinder 421, causing the moving plate 422 and moving block 423 to move, thereby adjusting the distance between the two auxiliary rollers 43. The two sides of the thin plate contact each other, completing the centering and limiting of the auxiliary roller 43 to prevent the thin plate from shifting during the feeding process. The sliding rod 8 supports the moving block 423, allowing the moving block 423 to move smoothly. The pushing component 53 drives the limiting component 54 to move up and down. With the limiting component 54, the electromagnetic brake 541 is de-energized during the feeding process of the thin plate, and the limiting roller 542 rotates and contacts the surface of the thin plate to prevent the thin plate from tilting during the feeding process. When the thin plate moves to the stamping length, the electromagnetic brake 541 is energized, the limiting roller 542 stops rotating, and the thin plate is pressed and limited to prevent the thin plate from shifting during the stamping process.

[0030] The working principle of this utility model is as follows: the thin plate is fed into the stamping area by the feeding device. Before feeding, the second hydraulic cylinder 421 drives the moving plate 422 and the moving block 423 to move synchronously along the slide bar 8, which drives the auxiliary rollers 43 on both sides to move towards each other until they are in close contact with the edges of the thin plate. During the entire conveying process, the auxiliary rollers 43 continuously center and guide the thin plate, effectively preventing the thin plate from deviating laterally and ensuring that it enters the stamping station with a precise posture.

[0031] The first hydraulic cylinder 52 pushes the push plate 531 and the vertical plate 532 downward, causing the limiting component 54 to descend. The limiting roller 542 then contacts the surface of the sheet material. During the feeding stage, the electromagnetic brake 541 is de-energized, and the limiting roller 542 can rotate freely, serving only as an auxiliary support and anti-warping function. When the sheet material is conveyed to the specified length, the electromagnetic brake 541 is immediately energized to generate braking torque, instantly locking the limiting roller 542, causing it to change from rotation to rest, thereby forcefully pressing and fixing the sheet material. Subsequently, the stamping head descends to complete the stamping operation.

[0032] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A stamping device with a thin plate positioning structure, comprising a base (1), characterized in that: The base (1) is fixedly connected to the top of the mounting plate (2), and the base (1) is provided with a stamping template (3). The mounting plate (2) is provided with a first positioning mechanism (4) at the top. The first positioning mechanism (4) includes a conveying plate (41) provided at the top of the mounting plate (2), a telescopic component (42) provided inside the conveying plate (41), and an auxiliary roller (43) provided at the top of the telescopic component (42). The top of the conveyor plate (41) is provided with a second positioning mechanism (5). The second positioning mechanism (5) includes a positioning box (51) fixedly connected to the top of the conveyor plate (41), a first hydraulic cylinder (52) fixedly connected to the top of the positioning box (51), a pushing component (53) disposed inside the positioning box (51), and a limiting component (54) disposed inside the positioning box (51).

2. The stamping device with a thin-plate positioning structure according to claim 1, characterized in that: The mounting plate (2) has a mounting groove on its top, and a mounting insert (6) is inserted into the mounting groove. The mounting insert (6) is fixedly connected to the bottom of the conveying plate (41).

3. A stamping device with a thin-plate positioning structure according to claim 1, characterized in that: The front side of the conveyor plate (41) is provided with a detection groove, and a rotary encoder is fixedly connected inside the detection groove. The rotary encoder is fixedly connected to a measuring roller (7) through a coupling.

4. A stamping device with a thin-plate positioning structure according to claim 1, characterized in that: The telescopic assembly (42) includes a second hydraulic cylinder (421) fixedly connected inside the conveyor plate (41), a movable plate (422) fixedly connected to the output end of the second hydraulic cylinder (421), and a movable block (423) fixedly connected to one side of the movable plate (422).

5. A stamping device with a thin-plate positioning structure according to claim 1, characterized in that: The conveyor plate (41) is internally fixedly connected with two slide rods (8).

6. A stamping device with a thin-plate positioning structure according to claim 1, characterized in that: The pushing assembly (53) includes a push plate (531) fixedly connected to the output end of the first hydraulic cylinder (52), and vertical plates (532) fixedly connected to both sides of the bottom of the push plate (531).

7. A stamping device with a thin-plate positioning structure according to claim 1, characterized in that: The limiting assembly (54) includes an electromagnetic brake (541) disposed inside the positioning box (51) and a limiting roller (542) fixedly connected inside the electromagnetic brake (541).

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