Punching machine for automobile silencer plate

Abstract

The utility model discloses a punching machine for an automobile muffler plate, which is characterized in that a table top is arranged on the upper surface of a base, a top plate is arranged on the upper surface of the table top through four upright posts, four positioning sensing components are arranged on two sides of the table top, two follower components are respectively arranged on two sides of the upper surface of the table top, and a lifting plate is in sliding fit with the four upright posts through sliding sleeves. The bottom end of a piston rod of the pressing cylinder penetrates through a guide sleeve of the lifting plate and is provided with a punching module, four pressing blocks are arranged on the lower surface of the lifting plate, the positions of the four pressing blocks correspond to the positions of the pressing plates in a one-to-one mode, and the four pressing blocks and the inner sides of the pressing plates are pressed in a matched mode. And the outer end of the pressing plate tilts and is separated from the proximity switch, so that the position detection of each pressing block is realized, the punching operation is ensured after the pressing blocks are pressed on the automobile silencer shell plate, and the waste rate of the automobile silencer shell plate is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive muffler punching equipment, specifically a punching machine for automotive muffler sheet metal. Background Technology

[0002] A car muffler is a component used to reduce the noise generated by a motor vehicle's engine. Because the difference in length between the two pipes is equal to half the wavelength of the sound waves emitted by the car, the two sound waves interfere with each other when they are superimposed, thus reducing the sound intensity and achieving the effect of muffler.

[0003] The outer shell of an automotive muffler is generally made by bending sheet metal. Some mufflers require a hole to be drilled before bending, necessitating a punching machine. Currently, the punching machines used for automotive muffler sheet metal are prone to deformation and skewing during long-term pressing. If this is not carefully monitored or addressed without warning, the sheet metal will shift, rendering it unusable. Therefore, an improved technology is urgently needed to solve this problem in existing technology. Utility Model Content

[0004] The purpose of this utility model is to provide a punching machine for automotive muffler plates to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a punching machine for automotive muffler sheet metal, comprising a frame, a limiting mechanism, and a pressing mechanism;

[0006] The bottom of the frame is provided with a base plate, the upper surface of the base plate is provided with a base, the upper surface of the base is provided with a table, the upper surface of the table is provided with a top plate through four columns, four positioning sensor components are provided on both sides of the table, the table is provided with mold holes, and a number of limit baffle mounting slots are provided at one end of the upper surface of the table and at the middle position. Limit baffles are installed in the limit baffle mounting slots by bolts.

[0007] The positioning sensing component includes a housing, side plates, a pressing plate, and a proximity switch. The housing is disposed within a table surface. Two side plates are disposed on the upper surface of the housing. A pressing plate is disposed between the two side plates via a pivot. A proximity switch is disposed inside the housing. The outer end of the pressing plate cooperates with the proximity switch.

[0008] The limiting mechanism includes a follower assembly, and there are four follower assemblies, with two follower assemblies arranged on each side of the upper surface of the platform.

[0009] The pressing mechanism includes a hydraulic cylinder and a lifting plate. The hydraulic cylinder is located on the upper surface of the top plate. The lifting plate is slidably engaged with four columns through a sliding sleeve. A through hole is opened in the middle of the lifting plate, and a guide sleeve is provided at the through hole. The bottom end of the piston rod of the hydraulic cylinder passes through the guide sleeve and is provided with a punching module. The punching module cooperates with the die hole. Four pressure blocks are provided on the lower surface of the lifting plate. The positions of the four pressure blocks correspond one-to-one with the positions of the pressing plate and cooperate with the inner side of the pressing plate to press.

[0010] Preferably, the punching machine for automotive muffler plates provided by this utility model includes a hydraulic station on the upper surface of the base plate, which is connected to a hydraulic cylinder via pipelines.

[0011] Preferably, the punching machine for automotive muffler plates provided by this utility model has a guide bevel on the inner side of the two follower assemblies located at the outer end and away from the limiting baffle.

[0012] Preferably, the present invention provides a punching machine for automotive muffler plates, wherein the follower assembly includes a housing and a limiting wheel, a plurality of grooves are provided on the inner side of the lower surface of the housing, a plurality of limiting wheels are respectively disposed in the grooves via wheel axles, and one side of the limiting wheel protrudes from the inner surface of the housing.

[0013] Preferably, the present invention provides a punching machine for automotive muffler sheet metal, wherein the outer surface of the piston rod of the hydraulic cylinder is provided with several guide grooves, a spring is provided in the guide grooves, a number of limiting pins are provided in the guide sleeve along the radial direction, the limiting pins correspond one-to-one with the guide grooves and guide and cooperate, and the bottom of the spring is supported on the limiting pins.

[0014] Preferably, the present invention provides a punching machine for automotive muffler plates, wherein a three-color light is provided at the top of the frame.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] The upper surface of the platform is equipped with four pressing and positioning components, each with a pressing plate and a proximity switch. The lower surface of the lifting plate is equipped with four pressure blocks, each of which engages with the pressing plate of the pressing and positioning component. When a pressure block presses onto the car muffler housing material, the outer end of the pressing plate is lifted up and disengaged from the proximity switch through a lever principle. This enables position detection of each pressure block, ensuring that the pressure block is pressed onto the car muffler housing material before punching, thus reducing the scrap rate of the car muffler housing material. At the same time, the platform is equipped with multiple limit baffle mounting slots, which can be adjusted according to the opening position to improve the applicability and flexibility. Attached Figure Description

[0017] Figure 1 This is a side view of the structure of this utility model;

[0018] Figure 2 This is a front view structural diagram of the present invention;

[0019] Figure 3 This is a top view of the structure of this utility model located on the tabletop;

[0020] Figure 4 This is a front view of the structure of this utility model located on the tabletop;

[0021] Figure 5 For the appendix Figure 4 Enlarged structural diagram of point A in the middle;

[0022] Figure 6 This is a schematic diagram of the servo assembly structure;

[0023] Figure 7 This is a schematic diagram of the pressing mechanism.

[0024] Figure 8 For the appendix Figure 7 Enlarged structural diagram of point A in the middle.

[0025] In the diagram: 1. Frame; 2. Base plate; 3. Base; 4. Tabletop; 5. Column; 6. Top plate; 7. Positioning sensor assembly; 8. Mold hole; 9. Limit baffle mounting slot; 10. Limit baffle; 11. Follower assembly; 12. Hydraulic cylinder; 13. Lifting plate; 14. Guide sleeve; 15. Punching module; 16. Pressure block; 17. Hydraulic station; 18. Guide angle; 19. Guide groove; 20. Spring; 21. Limit pin; 22. Three-color light; 701. Housing; 702. Side plate; 703. Pressing plate; 704. Proximity switch; 1101. Housing; 1102. Limit wheel. Detailed Implementation

[0026] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] It should be noted that in the description of this utility model, the terms "inner", "outer", "upper", "lower", "both sides", "one end", "the other end", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Please see Figure 1-8 This utility model provides a technical solution: a punching machine for automotive muffler sheet metal, including a frame 1, a limiting mechanism and a pressing mechanism;

[0029] The frame 1 has a base plate 2 at its bottom, a base 3 on its upper surface, and a hydraulic station 17 on its upper surface. The hydraulic station 17 is connected to the hydraulic cylinder 12 via pipelines to control the hydraulic cylinder 12. The base 3 has a table 4 on its upper surface, and a top plate 6 is mounted on the upper surface of the table 4 via four columns 5. Four positioning sensor components 7 are mounted on both sides of the table 4. The table 4 has a mold hole 8. Several limit baffle mounting slots 9 are located at one end and in the middle of the upper surface of the table 4. Limit baffles 10 are mounted in the limit baffle mounting slots 9 with bolts. The top of the frame 1 has a three-color light 22. When the pressure block 16 is deformed or tilted after long-term use, if a certain pressure block 16 fails to press smoothly onto the corresponding pressing plate 703, the signals of the other proximity switches 704 are lost, but the signal of the proximity switch 704 is not lost. In this case, the switch stops working, and the three-color light 22 alarms, so that the staff can see it quickly.

[0030] The positioning sensing component 7 includes a housing 701, side plates 702, a pressing plate 703, and a proximity switch 704. The housing 701 is disposed inside the table 4. Two side plates 702 are disposed on the upper surface of the housing 701. The pressing plate 703 is disposed between the two side plates 702 via a pivot. The proximity switch 704 is disposed inside the housing 701. The outer end of the pressing plate 703 cooperates with the proximity switch 704.

[0031] The limiting mechanism includes follower assemblies 11, of which there are four. Two follower assemblies 11 are arranged on each side of the upper surface of the platform 4. The two follower assemblies 11 located at the outer end and away from the limiting baffle 10 have guide angles 18 on their inner sides to ensure that the two follower assemblies 11 at the outer end will not block the feeding of the automotive muffler plate. The follower assembly 11 includes a housing 1101 and limiting wheels 1102. The inner side of the lower surface of the housing 1101 has several grooves. There are several limiting wheels 1102, which are respectively arranged in the grooves through wheel axles. One side of the limiting wheel 1102 protrudes from the inner surface of the housing 1101. The follower assembly 11 with this structure can limit the side of the automotive muffler plate through the limiting wheels 1102.

[0032] The pressing mechanism includes a hydraulic cylinder 12 and a lifting plate 13. The hydraulic cylinder 12 is located on the upper surface of the top plate 6. The lifting plate 13 is slidably engaged with four columns 5 via a sliding sleeve. A through hole is provided in the middle of the lifting plate 13, and a guide sleeve 14 is provided at the through hole. The bottom end of the piston rod of the hydraulic cylinder 12 passes through the guide sleeve 14 and is provided with a punching module 15. The punching module 15 cooperates with the die hole 8. Several guide grooves 19 are provided on the outer surface of the piston rod of the hydraulic cylinder 12. Springs 20 are provided in the guide grooves 19. A number of limiting pins 21 are arranged radially along the 14. The limiting pins 21 correspond one-to-one with the guide grooves 19 and are guided and engaged. The bottom of the spring 20 is supported on the limiting pins 21. This structure ensures that the guide sleeve 14 will not detach from the piston rod of the hydraulic cylinder 12. Secondly, the spring 20 ensures that the limiting pins 21 can smoothly return to the bottom of the guide groove 19. Four pressure blocks 16 are arranged on the lower surface of the lifting plate 13. The positions of the four pressure blocks 16 correspond one-to-one with the positions of the pressing plate 703 and engage with the inner side of the pressing plate 703 to press.

[0033] Working Method and Operating Principle: Place the automotive muffler housing 1101 sheet material onto the table 4, and install the limiting baffle 10 into the corresponding limiting baffle mounting groove 9 with bolts according to the opening position. The two sides of the automotive muffler housing 1101 sheet material are limited by the limiting wheels 1102 of the follower assembly 11. When the automotive muffler housing 1101 sheet material abuts against the limiting baffle 10, the piston rod of the hydraulic cylinder 12 descends, and the guide sleeve 14 and the lifting plate 13 also descend. When the pressure block 16 on the lower surface of the lifting plate 13 presses against the inner side of the pressing plate 703, the outer side of the pressing plate 703 disengages from the proximity switch 704, and the proximity switch 704 loses its signal, thus ensuring that the pressure block 16 presses against the automotive muffler housing 1101 sheet material. Then, the piston rod of the hydraulic cylinder 12 continues to descend a certain distance, causing the punching module 15 to press into the die hole 8. At this time, the spring 20 slightly contracts, completing the punching of the automotive muffler housing 1101 sheet material. This utility model has a reasonable structure. The upper surface of the platform 4 is provided with four positioning sensing components 7, each with a pressing plate 703 and a proximity switch 704. The lower surface of the lifting plate 13 is provided with four pressing blocks 16. The four pressing blocks 16 cooperate with the pressing plates 703 of the positioning sensing components 7. When the pressing blocks 16 press on the car muffler housing 1101 plate, the outer end of the pressing plate 703 is lifted up and disengaged from the proximity switch 704 through the lever principle, thereby realizing the position detection of each pressing block 16 (when the pressing block 16 is skewed or damaged, it cannot press the inner end of the pressing plate 703, and the outer end of the pressing plate 703 will not be lifted). This ensures that the pressing blocks 16 are pressed on the car muffler housing 1101 plate before the punching operation, reducing the scrap rate of the car muffler housing 1101 plate, which is particularly suitable for automated production lines. At the same time, the platform 4 is provided with multiple limit baffle mounting slots 9, and the position of the limit baffles 10 can be adjusted according to the opening position, thereby improving the applicability and flexibility.

[0034] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

[0035] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications and equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A punching machine for automotive muffler sheet metal, characterized in that: Includes frame (1), limit mechanism and pressing mechanism; The frame (1) has a base plate (2) at the bottom, a base (3) on the upper surface of the base plate (2), a table (4) on the upper surface of the base (3), a top plate (6) on the upper surface of the table (4) via four columns (5), four positioning sensor components (7) on both sides of the table (4), a mold hole (8) on the table (4), and a plurality of limit baffle mounting slots (9) at one end of the upper surface of the table (4) and in the middle position, with limit baffles (10) installed in the limit baffle mounting slots (9) by bolts. The positioning sensing component (7) includes a housing (701), side plates (702), a pressing plate (703), and a proximity switch (704). The housing (701) is disposed inside the table (4). Two side plates (702) are disposed on the upper surface of the housing (701). A pressing plate (703) is disposed between the two side plates (702) via a pivot. A proximity switch (704) is disposed inside the housing (701). The outer end of the pressing plate (703) cooperates with the proximity switch (704). The limiting mechanism includes a follower assembly (11), and there are four follower assemblies (11). Two follower assemblies (11) are provided on each side of the upper surface of the platform (4). The pressing mechanism includes a hydraulic cylinder (12) and a lifting plate (13). The hydraulic cylinder (12) is located on the upper surface of the top plate (6). The lifting plate (13) is slidably engaged with four columns (5) through a sliding sleeve. A through hole is provided in the middle of the lifting plate (13), and a guide sleeve (14) is provided at the through hole. The bottom end of the piston rod of the hydraulic cylinder (12) passes through the guide sleeve (14) and is provided with a punching module (15). The punching module (15) cooperates with the die hole (8). Four pressure blocks (16) are provided on the lower surface of the lifting plate (13). The positions of the four pressure blocks (16) correspond one-to-one with the positions of the pressing plate (703) and cooperate with the inner side of the pressing plate (703) to press.

2. The punching machine for automotive muffler sheet metal according to claim 1, characterized in that: The upper surface of the base plate (2) is also provided with a hydraulic station (17), which is connected to the hydraulic cylinder (12) through pipelines.

3. A punching machine for automotive muffler sheet metal according to claim 1, characterized in that: The two follower assemblies (11) located at the outer end have guide angles (18) on their inner sides at the end away from the limiting baffle (10).

4. A punching machine for automotive muffler sheet metal according to claim 1, characterized in that: The follower assembly (11) includes a housing (1101) and a limiting wheel (1102). The inner side of the lower surface of the housing (1101) is provided with a plurality of grooves. There are a plurality of limiting wheels (1102) and they are respectively set in the grooves through wheel axles. One side of the limiting wheel (1102) protrudes from the inner surface of the housing (1101).

5. A punching machine for automotive muffler sheet metal according to claim 1, characterized in that: The piston rod of the hydraulic cylinder (12) has several guide grooves (19) on its outer surface. A spring (20) is installed in the guide groove (19). The guide sleeve (14) has several limiting pins (21) arranged radially. The limiting pins (21) correspond one-to-one with the guide grooves (19) and are guided and engaged. The bottom of the spring (20) is supported on the limiting pins (21).

6. A punching machine for automotive muffler sheet metal according to claim 1, characterized in that: The top of the frame (1) is equipped with a tri-color light (22).

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