Stamping die with closing condition detection function

Abstract

The utility model discloses a stamping die with a closing condition detection function, which belongs to the technical field of stamping die closing condition detection, and comprises a displacement sensor, a pressure sensor and a protection mechanism, the protection mechanism comprises a rubber plate arranged at the bottom of the displacement sensor, the top of the rubber plate is provided with a transparent frame, and the pressure sensor is arranged in the transparent frame. The upper end of the inner wall of the transparent frame is slidably connected with a sliding rod, and the end of the sliding rod is fixedly connected with a reset spring. According to the mode, the rubber plate and the transparent frame are matched with each other, so that the displacement sensor and the pressure sensor are surrounded, metal scraps generated in the stamping process are prevented from splashing to the surfaces of the displacement sensor and the pressure sensor, and the precision of detecting the closing condition of the stamping grinding tool is guaranteed; the sliding rod is automatically reset through the reset spring, and it is guaranteed that when the upper mold is away from the top end of the sliding rod, the sliding rod automatically resets under the action of the reset spring to relieve pressing on the pressure sensor.

Description

Technical Field

[0001] This utility model relates to the field of stamping die closure detection technology, specifically to a stamping die with closure detection function. Background Technology

[0002] In the stamping production of automotive parts such as body panels using automotive stamping dies, in order to ensure the quality and precision of the stamped products, a closure detection device is usually installed on the automotive stamping die. This advanced die can monitor the closure status of the die in real time, ensuring that the stamping die is completely closed and without any jamming points.

[0003] Existing closure detection devices typically have displacement and pressure sensors on the surface of the lower mold of the car. The upper mold presses down on the pressure sensor. By monitoring the magnitude and trend of the pressure, it can be determined whether the mold is closed normally.

[0004] Then, the automotive stamping die generates metal debris in the stamped workpiece, which can easily adhere to the displacement sensor and pressure sensor, thus affecting the accuracy of detecting the closure of the automotive stamping die.

[0005] Based on this, this utility model designs a stamping die with a closure detection function to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a stamping die with a closure detection function.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A stamping die with closure detection function includes a displacement sensor and a pressure sensor, and also includes a protective mechanism. The protective mechanism includes a rubber plate disposed at the bottom of the displacement sensor, a transparent frame disposed at the top of the rubber plate, a slide rod slidably connected to the upper end of the inner wall of the transparent frame, a return spring fixedly connected to the end of the slide rod, and the top end of the return spring fixedly connected to the inner top wall of the transparent frame.

[0009] Furthermore, the lower end of the inner wall of the transparent frame is threaded with several screws, and the surface of the screws is threaded to the inner wall of the rubber plate.

[0010] Furthermore, a circular frame is fixedly connected to the top of the rubber plate, and the surface of the pressure sensor is snapped into the inner wall of the circular frame.

[0011] Furthermore, a rectangular frame is fixedly connected to the top of the rubber plate, and the surface of the displacement sensor is snapped into the inner wall of the rectangular frame.

[0012] Furthermore, a rubber plug is engaged at the lower end of the inner wall of the transparent frame, and the bottom end of the rubber plug contacts the top of the screw.

[0013] Furthermore, two limiting blocks are fixedly connected to the ends of the transparent frame.

[0014] Furthermore, two limiting rods are fixedly connected to the end of the transparent frame, and the inner wall of the rubber plug is slidably connected to the surface of the limiting rods.

[0015] Furthermore, two protective sleeves are fixedly connected to one side of the transparent frame, and annularly distributed insulating pads are fixedly connected to the inner wall of the protective sleeves. Beneficial effects

[0016] By using a rubber plate and a transparent frame together, the displacement sensor and pressure sensor are protected, thus preventing metal debris generated during stamping from splashing onto their surfaces. This ensures the accuracy of detecting the closure of the stamping die. A return spring is used to automatically reset the slide bar, ensuring that when the upper die is far away from the top of the slide bar, the slide bar automatically resets under the action of the return spring to release the pressure on the pressure sensor.

[0017] The use of a circular frame and a rectangular frame ensures the stability of the pressure sensor and displacement sensor mounted on the rubber plate, preventing displacement of the pressure sensor and displacement sensor on the rubber plate. The rubber plate, circular frame, and rectangular frame are used to mitigate the impact force on the displacement sensor and pressure sensor, thereby reducing the impact force on the displacement sensor and pressure sensor and ensuring the accuracy of the displacement sensor and pressure sensor in inspecting the closure status of the stamping die. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a perspective view of the main structure of a stamping die with a closure detection function according to the present invention;

[0020] Figure 2 This is a perspective view of a protective mechanism for a stamping die with a closure detection function according to the present invention.

[0021] Figure 3This is an exploded view of the rubber plate and transparent frame of a stamping die with closure detection function according to this utility model;

[0022] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0023] The labels in the diagram represent:

[0024] 100. Displacement sensor; 200. Pressure sensor; 300. Protective mechanism; 301. Rubber plate; 302. Transparent frame; 303. Slide rod; 304. Return spring; 305. Rectangular frame; 306. Circular frame; 307. Screw; 308. Rubber plug; 309. Limiting block; 310. Limiting rod; 311. Protective sleeve; 312. Insulating pad. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] The present invention will be further described below with reference to the embodiments.

[0027] In some embodiments, please refer to the appendix to the instruction manual. Figure 1-4 A stamping die with a closure detection function includes a displacement sensor 100 and a pressure sensor 200, and also includes a protective mechanism 300. The protective mechanism 300 includes a rubber plate 301 located at the bottom of the displacement sensor 100, a transparent frame 302 located at the top of the rubber plate 301, a slide rod 303 slidably connected to the upper end of the inner wall of the transparent frame 302, a return spring 304 fixedly connected to the end of the slide rod 303, and the top end of the return spring 304 fixedly connected to the inner top wall of the transparent frame 302.

[0028] The glass embedded in the surface of the transparent frame 302 is tempered glass, and the return spring 304 is an alloy spring steel component.

[0029] The bottom of the rubber sheet 301 is equipped with a lower mold, and the top of the lower mold is equipped with an upper mold. Both the upper mold and the lower mold are bolted to the surface of the hydraulic press.

[0030] In this embodiment of the utility model, when stamping body panels, automated equipment such as a robotic arm is used to place the cut sheet metal blanks onto the lower die of the stamping mold, ensuring accurate placement of the blanks to guarantee stamping precision. The hydraulic press uses a hydraulic pump to deliver hydraulic oil to the hydraulic cylinder, pushing the piston to move the upper die downwards and stamp the sheet metal. During the stamping process, the upper die moves downwards and touches the top of the upper die, pushing the slide rod 303 downwards. The slide rod 303 then contacts the pressure sensor 200, and is further pushed downwards, thus pressing down on the pressure sensor 200. During the mold closing process, the pressure changes with the degree of closure. The pressure sensor 200 monitors the magnitude and trend of the pressure, and the detected information is transmitted to the control system to determine whether the mold is closing normally. If the pressure is abnormally high or low, it indicates that there may be a problem with the mold closing, and the control system will issue an alarm signal.

[0031] The displacement sensor 100 measures the relative displacement between the upper and lower molds in real time. The detected information is transmitted to the control system. During normal mold closing, the displacement changes follow a certain pattern. When the displacement value exceeds the preset normal range, it indicates that there may be a problem with mold closing, and the control system will issue an alarm signal.

[0032] After stamping is completed, the upper mold rises, and unloading equipment such as a robot arm is used to remove the formed body panel from the mold and transport it to the next process or storage area.

[0033] In this embodiment of the utility model, the rubber plate 301 and the transparent frame 302 cooperate to protect the displacement sensor 100 and the pressure sensor 200, thereby preventing metal debris generated during stamping from splashing onto the surfaces of the displacement sensor 100 and the pressure sensor 200, thus ensuring the accuracy of detecting the closing status of the stamping die. The return spring 304 is used to automatically reset the slide bar 303, ensuring that when the upper die is away from the top of the slide bar 303, the slide bar 303 automatically resets under the action of the return spring 304 to release the pressure on the pressure sensor 200.

[0034] In some embodiments, such as Figure 3-4As shown, in a preferred embodiment of this utility model, a plurality of screws 307 are threadedly connected to the lower end of the inner wall of the transparent frame 302. The surfaces of the screws 307 are threadedly connected to the inner wall of the rubber plate 301. A circular frame 306 is fixedly connected to the top of the rubber plate 301. The surface of the pressure sensor 200 is snapped into the inner wall of the circular frame 306. A rectangular frame 305 is fixedly connected to the top of the rubber plate 301. The surface of the displacement sensor 100 is snapped into the inner wall of the rectangular frame 305. A rubber plug 308 is snapped into the lower end of the inner wall of the transparent frame 302. The bottom end of the rubber plug 308 contacts the top end of the screws 307. Two limiting blocks 309 are fixedly connected to the end of the transparent frame 302. Two limiting rods 310 are fixedly connected to the end of the transparent frame 302. The inner wall of the rubber plug 308 is slidably connected to the surface of the limiting rod 310.

[0035] In this embodiment of the invention, the surface of the pressure sensor 200 is snapped into the circular frame 306, and the displacement sensor 100 is snapped into the rectangular frame 305. The transparent frame 302 is placed on top of the rubber plate 301, so that the connecting wires on the pressure sensor 200 and the displacement sensor 100 pass through the transparent frame 302 and are wired to a digital signal transmitter such as an industrial Ethernet transmitter. The rubber plate 301 is placed at a suitable position at the end of the lower mold. The screw 307 is threaded onto the transparent frame 302, the rubber plate 301, and the lower mold using an electric wrench. After the rubber plug 308 is rotated at a suitable angle on the surface of the limiting rod 310, the rubber plug 308 is pressed down into the transparent frame 302 and abuts against the top of the screw 307, so that the rubber plug 308 passes over the top of the limiting block 309, and the upper arc of the surface of the rubber plug 308 is below the arc of the surface of the limiting block 309. The transparent frame 302 is installed on top of the rubber plate 301, and the rubber plate 301 is installed at the end of the lower mold.

[0036] In this embodiment of the utility model, the circular frame 306 and the rectangular frame 305 cooperate with each other to ensure the stability of the pressure sensor 200 and the displacement sensor 100 mounted on the rubber plate 301, and to prevent the pressure sensor 200 and the displacement sensor 100 from being displaced on the rubber plate 301. The rubber plate 301, the circular frame 306 and the rectangular frame 305 are used to alleviate the impact force on the displacement sensor 100 and the pressure sensor 200, reduce the impact force on the displacement sensor 100 and the pressure sensor 200, and thus ensure the accuracy of the displacement sensor 100 and the pressure sensor 200 in inspecting the closure status of the stamping die.

[0037] In some embodiments, such as Figure 4 As shown, in a preferred embodiment of the present invention, two protective sleeves 311 are fixedly connected to one side of the transparent frame 302, and annularly distributed insulating pads 312 are fixedly connected to the inner wall of the protective sleeves 311.

[0038] Rubber plate 301, circular frame 306, rectangular frame 305, rubber plug 308, protective sleeve 311 and insulating pad 312 are all butyl rubber components, which gives rubber plate 301, circular frame 306, rectangular frame 305, rubber plug 308, protective sleeve 311 and insulating pad 312 good damping performance, aging resistance and chemical stability, and can absorb and attenuate vibration energy, and maintain good buffering performance even under harsh environmental conditions.

[0039] In this embodiment of the utility model, the protective sleeve 311 and the insulating pad 312 cooperate to block the reserved hole on one side of the transparent frame 302, preventing metal debris from splashing into the interior of the transparent frame 302 through the reserved hole, thus ensuring the protection of the displacement sensor 100 and the pressure sensor 200.

[0040] It should be noted that the displacement sensor 100, pressure sensor 200 and screw 307 mentioned above are all devices with relatively mature existing technology. The specific models can be selected according to actual needs. At the same time, the displacement sensor 100 and pressure sensor 200 can be powered by the built-in power supply or by the mains power. The specific power supply method should be selected according to the situation, which will not be elaborated here.

[0041] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A stamping die with closure detection function, comprising a displacement sensor (100) and a pressure sensor (200), characterized in that: It also includes a protective mechanism (300), which includes a rubber plate (301) located at the bottom of the displacement sensor (100). A transparent frame (302) is provided on the top of the rubber plate (301). A slide rod (303) is slidably connected to the upper end of the inner wall of the transparent frame (302). A reset spring (304) is fixedly connected to the end of the slide rod (303). The top end of the reset spring (304) is fixedly connected to the inner top wall of the transparent frame (302).

2. The stamping die with closure detection function according to claim 1, characterized in that, The lower end of the inner wall of the transparent frame (302) is threaded with a number of screws (307), and the surface of the screws (307) is threaded to the inner wall of the rubber plate (301).

3. The stamping die with closure detection function according to claim 1, characterized in that, A circular frame (306) is fixedly connected to the top of the rubber plate (301), and the surface of the pressure sensor (200) is snapped onto the inner wall of the circular frame (306).

4. The stamping die with closure detection function according to claim 1, characterized in that, A rectangular frame (305) is fixedly connected to the top of the rubber plate (301), and the surface of the displacement sensor (100) is snapped onto the inner wall of the rectangular frame (305).

5. The stamping die with closure detection function according to claim 1, characterized in that, A rubber plug (308) is snapped into the lower end of the inner wall of the transparent frame (302), and the bottom end of the rubber plug (308) contacts the top end of the screw (307).

6. The stamping die with closure detection function according to claim 1, characterized in that, Two limiting blocks (309) are fixedly connected to the ends of the transparent frame (302).

7. The stamping die with closure detection function according to claim 5, characterized in that, Two limiting rods (310) are fixedly connected to the end of the transparent frame (302), and the inner wall of the rubber plug (308) is slidably connected to the surface of the limiting rods (310).

8. The stamping die with closure detection function according to claim 1, characterized in that, Two protective sleeves (311) are fixedly connected to one side of the transparent frame (302), and annularly distributed insulating pads (312) are fixedly connected to the inner wall of the protective sleeves (311).

Images