Automobile silencer end cover plate cutting equipment

Abstract

The utility model relates to the technical field of automobile silencer machining, and discloses automobile silencer end cover plate cutting equipment which comprises a workbench, a cutting machine is fixedly connected to the top end face of the workbench, and a limiting assembly is arranged on the top end face of the workbench. According to the automobile silencer end cover plate cutting equipment, even adsorption force is provided through negative pressure adsorption on the whole bottom face of a plate, local deformation or warping of the plate caused by stress point concentration during mechanical clamping is avoided, any physical damage to the surface of the plate cannot be caused, chippings generated during cutting can also be sucked into the water tank, and the cutting efficiency is improved. Chippings and dust generated by cutting are synchronously collected, sedimentation is conducted through water flow, the chippings can be prevented from flying in the air, the shielding film shields the ventilation holes, the number of the ventilation holes without plates above is reduced, suction force is concentrated below the plates, and it is ensured that the small plates can still be firmly fixed.

Description

Technical Field

[0001] This utility model relates to the field of automotive muffler processing technology, specifically to an automotive muffler end cover plate cutting device. Background Technology

[0002] During the processing of automotive rear mufflers, specialized cutting equipment is required to precisely cut the sheet metal used for the end caps. The purpose of this process is to ensure that the dimensions of the end caps meet the design requirements so that subsequent welding and assembly processes can proceed smoothly.

[0003] According to a public announcement (Announcement No.: CN216359342U), a cutting device for automotive rear muffler end caps is provided. The device includes a workbench and a support. The support is fixedly installed on the top of the workbench. A telescopic push rod is fixedly provided on the inner top wall of the support. A lifting plate is fixedly provided at the bottom of the telescopic push rod. A cutting mechanism is fixedly provided at the bottom of the lifting plate. The cutting device for automotive rear muffler end caps fixes the end cap material to be processed on the workbench, so that its cutting position is below the cutting mechanism. Then, the telescopic push rod pushes the lifting plate downward, causing the cutting mechanism at the bottom of the lifting plate to descend and cut the material.

[0004] However, in actual use, the clamping block of the above-mentioned cutting equipment can usually only apply clamping force in a local area. If the clamping force is insufficient or the force points are uneven, the plate may move slightly during the cutting process. Especially for thinner or softer plates, the rotation of the cutting blade may cause the plate to vibrate during cutting, which will affect the straightness and smoothness of the cut. In view of this, we propose a cutting equipment for automotive muffler end cover plates. Utility Model Content

[0005] The purpose of this utility model is to provide a cutting device for automotive muffler end cover plates to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cutting device for automotive muffler end cover plates, comprising a workbench, a cutting machine fixedly connected to the top end face of the workbench, and a limiting component provided on the top end face of the workbench, the limiting component comprising:

[0007] A protective cover is fixedly connected to the top end face of the workbench, and a cover is hinged to the front of the protective cover.

[0008] A limiting frame is fixedly connected to the top end face of the workbench. A ventilation hole is opened on the inner bottom surface of the limiting frame. A water tank is fixedly connected to the bottom end face of the workbench. A fan is fixedly connected to the bottom end face of the workbench.

[0009] A take-up roller is rotatably connected to the inner wall of a water tank. A shielding film is wrapped around the side wall of the take-up roller. A handle is fixedly connected to the end of the shielding film away from the take-up roller. An opening groove is provided on the side wall of the handle.

[0010] A guide plate is hinged to the top surface inside the water tank, and an elastic telescopic rod is fixedly connected to the side wall of the guide plate.

[0011] Preferably, the opening groove divides the handle into two parts, and a connecting rod is fixedly connected to the side wall of the handle, with both ends of the connecting rod connected to the side walls of the two parts of the handle.

[0012] Preferably, the end of the elastic telescopic rod away from the guide plate is fixedly connected to the inner top surface of the water tank, and the side wall of the guide plate is movably connected to the shielding membrane. The elastic telescopic rod pulls the guide plate to always abut against the shielding membrane to prevent the shielding membrane from rolling up loosely and to keep the shielding membrane in a taut state.

[0013] Preferably, the end face of the shielding film is fixedly connected to the side wall of the take-up roller, and the end face of the take-up roller is fixedly connected to a handle. Rotating the handle drives the take-up roller to rotate, thereby winding up the shielding film and moving the handle to the right to reset.

[0014] Preferably, the fan has an air inlet and an air outlet. The air inlet is located inside the water tank, and the air outlet is located outside the workbench. When the fan is working, it draws air out of the water tank.

[0015] Preferably, the shielding film is movably connected to the inner wall of the limiting frame, and the shielding film is movably connected to the inner bottom surface of the limiting frame.

[0016] Preferably, a guide rod is fixedly connected to the side wall of the handle, and a guide groove is provided on the inner wall of the limiting frame, with the guide groove slidably connected to the guide rod.

[0017] Compared with the prior art, this utility model provides a cutting device for automotive muffler end cover plates, which has the following advantages:

[0018] 1. This automotive muffler end cover cutting equipment, through its limiting components, provides uniform suction force across the entire bottom surface of the sheet material using negative pressure adsorption. This avoids localized deformation or warping of the sheet material caused by concentrated force points during mechanical clamping, preventing any physical damage to the sheet material surface. The debris generated during cutting is also sucked into a water tank, simultaneously collecting the debris and dust, which settles using water flow. This prevents debris from flying in the air, reducing the risk of dust inhalation for operators. A shielding film covers the vents, reducing the number of vents without sheet material above. Concentrated suction force is focused on the bottom of the sheet material, ensuring even smaller sheets remain firmly fixed and do not move or warp due to insufficient suction. The suction area can be flexibly adjusted, and a guide plate prevents the shielding film from loosening during winding, maintaining its tautness and ensuring stable coverage of the vents. The guide plate also prevents debris from entering between the shielding film particles, preventing bulging, deformation, or localized warping of the shielding film during winding due to debris inclusion.

[0019] 2. This automotive muffler end cover cutting equipment, through the setting of guide rods and guide grooves, ensures that the handle always slides in the set direction during movement, without jamming due to deviation or tilt, so that the shielding film can be unfolded or retracted more smoothly, maintaining the sealing effect. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0021] Figure 2 This is a schematic diagram of the workbench structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the cross-sectional structure of the water tank of this utility model;

[0023] Figure 4 This is an exploded view of the limiting frame of this utility model.

[0024] In the diagram: 1. Workbench; 2. Cutting machine; 3. Limiting assembly; 301. Protective cover; 302. Cover; 303. Limiting frame; 304. Vent hole; 305. Water tank; 306. Fan; 307. Take-up roller; 308. Masking film; 309. Handle; 310. Opening slot; 311. Connecting rod; 312. Guide plate; 313. Elastic telescopic rod; 4. Guide rod; 5. Guide groove; 6. Rotary handle. Detailed Implementation

[0025] like Figures 1-4As shown, this utility model provides a technical solution: a cutting device for automotive muffler end cover plates, including a workbench 1, a cutting machine 2 fixedly connected to the top end face of the workbench 1, and a limiting component 3 provided on the top end face of the workbench 1. The limiting component 3 includes a protective cover 301, a cover body 302, a limiting frame 303, a vent 304, a water tank 305, a fan 306, a take-up roller 307, a shielding film 308, a handle 309, an opening slot 310, a connecting rod 311, a guide plate 312, and an elastic telescopic rod 313.

[0026] In one embodiment of this utility model, a protective cover 301 is fixedly connected to the top end face of the workbench 1. A cover 302 is hinged to the front of the protective cover 301. A limiting frame 303 is fixedly connected to the top end face of the workbench 1. A vent hole 304 is opened on the inner bottom surface of the limiting frame 303. A water tank 305 is fixedly connected to the bottom end face of the workbench 1. A fan 306 is fixedly connected to the bottom end face of the workbench 1. The fan 306 is provided with an air inlet and an air outlet. The air inlet is located inside the water tank 305, and the air outlet is located outside the workbench 1. When the fan 306 operates, it draws out the air from the water tank 305.

[0027] The take-up roller 307 is rotatably connected to the inner wall of the water tank 305. A shielding film 308 is wrapped around the side wall of the take-up roller 307. The shielding film 308 is movably connected to the inner wall of the limiting frame 303 and to the inner bottom surface of the limiting frame 303. A handle 309 is fixedly connected to the end of the shielding film 308 away from the take-up roller 307. An opening groove 310 is formed on the side wall of the handle 309, dividing the handle 309 into two parts. A connecting rod 311 is fixedly connected to the side wall of the handle 309, with both ends of the connecting rod 311 connected to the two parts of the side wall of the handle 309. The end face of the shielding film 308 is fixedly connected to the side wall of the take-up roller 307. A handle 6 is fixedly connected to the end face of the winding roller 307. Rotating the handle 6 drives the winding roller 307 to rotate, thereby winding up the shielding film 308 and causing the handle 309 to move to the right and reset. The guide plate 312 is hinged to the inner top surface of the water tank 305. An elastic telescopic rod 313 is fixedly connected to the side wall of the guide plate 312. The end of the elastic telescopic rod 313 away from the guide plate 312 is fixedly connected to the inner top surface of the water tank 305. The side wall of the guide plate 312 is movably connected to the shielding film 308. The elastic telescopic rod 313 pulls the guide plate 312 to always abut against the shielding film 308, preventing the shielding film 308 from loosening during winding and keeping the shielding film 308 in a taut state.

[0028] The sheet material is placed in the limiting frame 303. The fan 306 operates to extract air from the water tank 305, making the air pressure in the water tank 305 lower than the air pressure above the worktable 1. This causes the sheet material to be adsorbed onto the worktable 1. The negative pressure adsorption can provide uniform adsorption force on the entire bottom surface of the sheet material, avoiding local deformation or warping of the sheet material caused by concentrated force points during mechanical clamping. It will not cause any physical damage to the surface of the sheet material, which is conducive to improving the quality of the finished product. At this time, the cutting machine 2 cuts the sheet material. The debris generated during cutting is also sucked into the water tank 305. The debris and dust generated during cutting are collected simultaneously and settled by water flow, which can prevent the debris from flying in the air and reduce the risk of dust inhalation for operators.

[0029] When cutting smaller plates, pull handle 309 to block the vent holes 304 with the shielding film 308, reducing the number of vent holes 304 without plates above. This concentrates suction on the bottom of the plate, ensuring that smaller plates remain firmly fixed and do not move or lift due to insufficient suction. The suction area can be flexibly adjusted to improve the equipment's adaptability, enabling it to efficiently process end cap plates of different sizes. The elastic telescopic rod 313 pulls the guide plate 312, which remains in contact with the shielding film 308 to prevent the shielding film 308 from loosening during winding, maintaining its tautness and ensuring it stably blocks the vent holes 304. Simultaneously, the guide plate 312 prevents debris from entering between the shielding films 308, preventing the shielding film 308 from bulging, deforming, or partially lifting due to debris during winding. This keeps the surface of the shielding film 308 smooth, preventing it from affecting the sealing effect of the vent holes 304 and thus the suction force.

[0030] The handle 309 has an opening groove 310 on its side wall, which allows the cutting machine 2 to cut the edge of the board. This ensures that the entire edge of the board can be cut completely. Without the opening groove 310, the edge of the board may require additional manual trimming, increasing processing time and cost. With the opening groove 310, the cutting machine 2 can complete the precise cutting of the entire board in one go, reducing errors caused by secondary trimming and improving product consistency.

[0031] In addition, a guide rod 4 is fixedly connected to the side wall of the handle 309, and a guide groove 5 is provided on the inner wall of the limit frame 303. The guide groove 5 is slidably connected to the guide rod 4. The guide rod 4 and the guide groove 5 cooperate to form a precise sliding track, ensuring that the handle 309 always slides in the set direction during movement, without jamming due to deviation or tilt, so that the shielding film 308 can be unfolded or retracted more smoothly to maintain the sealing effect.

[0032] In this invention, during use, the blower 306 extracts air from the water tank 305, making the air pressure inside the water tank 305 lower than the air pressure above the workbench 1. This causes the sheet material to adhere to the workbench 1. The negative pressure adsorption provides uniform adsorption force across the entire bottom surface of the sheet material, preventing localized deformation or warping caused by concentrated force points during mechanical clamping. This avoids any physical damage to the sheet material surface, thus improving the quality of the finished product. Meanwhile, the cutting machine 2 cuts the sheet material, and the resulting debris is also sucked into the water tank 305 for simultaneous collection. The debris and dust generated during cutting are blocked by the shielding film 308 to cover the vents 304, reducing the number of vents 304 without plates above. The suction is concentrated below the plate, ensuring that smaller plates can still be firmly fixed and will not move or lift due to insufficient suction. The suction area can be flexibly adjusted to improve the adaptability of the equipment, enabling it to efficiently process end cap plates of different specifications. The elastic telescopic rod 313 pulls the guide plate 312 to always be in contact with the shielding film 308, preventing the shielding film 308 from loosening during winding and keeping the shielding film 308 taut.

[0033] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A cutting device for automotive muffler end cover plates, comprising a workbench (1), wherein a cutting machine (2) is fixedly connected to the top end face of the workbench (1), characterized in that: The top end face of the workbench (1) is provided with a limiting component (3), the limiting component (3) including: A protective cover (301) is fixedly connected to the top end face of the workbench (1), and a cover (302) is hinged to the front of the protective cover (301). A limiting frame (303) is fixedly connected to the top end face of the workbench (1). A ventilation hole (304) is opened on the bottom surface of the inner side of the limiting frame (303). A water tank (305) is fixedly connected to the bottom end face of the workbench (1). A fan (306) is fixedly connected to the bottom end face of the workbench (1). A take-up roller (307) is rotatably connected to the inner wall of a water tank (305). A shielding film (308) is wrapped around the side wall of the take-up roller (307). A handle (309) is fixedly connected to one end of the shielding film (308) away from the take-up roller (307). An opening groove (310) is opened on the side wall of the handle (309). A guide plate (312) is hinged to the top surface inside the water tank (305), and an elastic telescopic rod (313) is fixedly connected to the side wall of the guide plate (312).

2. The automotive muffler end cover plate cutting equipment according to claim 1, characterized in that: The opening slot (310) divides the handle (309) into two parts. A connecting rod (311) is fixedly connected to the side wall of the handle (309). The two ends of the connecting rod (311) are connected to the side walls of the two parts of the handle (309).

3. The automotive muffler end cover plate cutting equipment according to claim 1, characterized in that: The end of the elastic telescopic rod (313) away from the guide plate (312) is fixedly connected to the inner top surface of the water tank (305), and the side wall of the guide plate (312) is movably connected to the shielding membrane (308).

4. The automotive muffler end cover plate cutting equipment according to claim 1, characterized in that: The end face of the shielding film (308) is fixedly connected to the side wall of the take-up roller (307), and the end face of the take-up roller (307) is fixedly connected to the handle (6).

5. The automotive muffler end cover plate cutting equipment according to claim 1, characterized in that: The fan (306) is provided with an air inlet and an air outlet. The air inlet is located inside the water tank (305), and the air outlet is located outside the workbench (1).

6. The automotive muffler end cover plate cutting equipment according to claim 1, characterized in that: The shielding film (308) is movably connected to the inner wall of the limiting frame (303), and the shielding film (308) is movably connected to the inner bottom surface of the limiting frame (303).

7. The automotive muffler end cover plate cutting equipment according to claim 1, characterized in that: The handle (309) has a guide rod (4) fixedly connected to its side wall, and the inner wall of the limiting frame (303) has a guide groove (5) which is slidably connected to the guide rod (4).

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