A cutting device and cutting method for a new energy automobile front wall sound insulation pad

Abstract

The application discloses a cutting device and a cutting method for a new energy automobile front wall sound insulation pad, and relates to the technical field of sound insulation pad cutting. The cutting device comprises a cutting base, an upper surface of the cutting base is provided with an upper-and-lower-through cutting groove, an upper portion of the cutting base is provided with a cutting assembly, a lower end of the cutting assembly is provided with a fixing assembly, a top end of the cutting assembly is provided with a supporting assembly, a lower end of the cutting base is hot-melted with a waste box, an inner portion of the waste box is provided with a material receiving cavity, an upper end of the material receiving cavity is in an open form, and the material receiving cavity is communicated with the cutting groove. The present application solves the problem that, when the existing automobile front wall sound insulation pad is cut, a cutting knife is moved horizontally at one time, the sound insulation pad has different thicknesses at different positions, the material distribution is not very uniform, after the cutting knife is pressed down, the pressing degree around the cutting knife is different, the sound insulation pad is cut at one time, and the cutting section is not flat.

Description

Technical Field

[0001] This invention relates to the field of sound insulation pad cutting technology, specifically to a cutting device and method for sound insulation pads for the front of new energy vehicles. Background Technology

[0002] The front sound insulation pad for new energy vehicles is a sound insulation material designed to improve the driving comfort of cars. It has multiple functions such as noise reduction, reducing body vibration, optimizing sound quality, blocking heat, protecting the body paint, and ensuring the body's sealing. During production, the entire sound insulation pad needs to be cut.

[0003] For example, the Chinese authorized patent with announcement number CN221539979U (a high-temperature resistant automotive sound insulation pad processing and cutting device) includes a base, an operating table, a cutting component, and a positioning component. The operating table and the cutting component are provided on the upper surface of the base. The positioning component is symmetrically arranged on both sides of the operating table and can position the sound insulation pad. The positioning component includes a slide rail, a plug, a locking strip, a bolt, a housing, a spring, a connecting block, a torsion spring, a pressing block, and a friction pad. By setting the positioning component between the base and the operating table, the sound insulation pad can be quickly pressed by pressing the connecting block and the slide rail, which saves adjustment time to a certain extent and makes the operation more convenient and faster. Furthermore, the pressing position can be adjusted by rotating the connecting block, thereby improving the overall versatility and adaptability of the device.

[0004] In existing automotive front sound insulation pads, the cutting process involves moving the cutting blade laterally in one go. This results in varying thicknesses and uneven material distribution across different areas of the pad. Furthermore, the pressure applied by the cutting blade can lead to uneven cuts and uneven cross-sections. Therefore, we provide a cutting device and method for front sound insulation pads used in new energy vehicles. Summary of the Invention

[0005] The purpose of this invention is to provide a cutting device and method for cutting sound insulation pads for the front of new energy vehicles, in order to solve the problems mentioned in the background art. In the existing cutting of sound insulation pads for the front of automobiles, the cutting blade moves laterally in one go to cut, resulting in different thicknesses of the sound insulation pad at different locations and uneven material distribution. After the cutting blade is pressed down, the pressure around the pads is uneven, and cutting in one go can easily result in an uneven cut cross-section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a cutting device for sound insulation pads for the front of new energy vehicles, comprising a cutting base, a cutting groove extending vertically through the upper surface of the cutting base, a cutting component above the cutting base, a fixing component at the lower end of the cutting component, a supporting component at the top end of the cutting component, a waste bin heat-melted to the lower end of the cutting base, a receiving cavity inside the waste bin, the upper end of the receiving cavity being open and communicating with the cutting groove.

[0007] Preferably, the cutting component includes a first moving part and a second moving part, the second moving part drives the first moving part to move through a connecting seat, and both the first moving part and the second moving part include a slide rail mounting sleeve and a ball screw slide rail, and the ball screw slide rail is installed inside the slide rail mounting sleeve.

[0008] Preferably, the ball screw slide rail of the first moving part is connected to a protective sleeve, the protective sleeve has a through-hole mounting cavity inside, a cover plate is fixed to the top of the protective sleeve by an external bolt, a first cutting blade is arranged inside the mounting cavity, a second cutting blade is arranged on one side of the first cutting blade, a third cutting blade is arranged on one side of the second cutting blade, and a fourth cutting blade is arranged on one side of the third cutting blade. The first cutting blade, the second cutting blade, the third cutting blade and the fourth cutting blade are fixed to a fixing plate by screws, and a cylinder is arranged at the upper end of the fixing plate.

[0009] Preferably, the cylinder is provided with a cylinder mounting bracket on its exterior, four cylinders are provided, and the cylinder mounting bracket is welded and fixed to the inner wall of the mounting cavity. The cylinder is fixed to the cylinder mounting bracket by a single-head fastener, and the front surface of the protective sleeve is provided with a vent hole.

[0010] Preferably, the fixing component includes a fixing frame and a connecting plate, and the connecting plate is heat-fused to the fixing frame. The connecting plate is connected to the first moving part through an electric push rod. A frame groove is provided at the center of the fixing frame, and fixing base plates are provided on both lower surfaces of the fixing frame.

[0011] Preferably, the support assembly includes a rear support frame, the top of which is welded with a stabilizing top frame, and one end of the stabilizing top frame is welded and fixed to the slide rail mounting sleeve of the second moving part.

[0012] Preferably, the support assembly further includes a first side frame and a second side frame, and the two ends of the rear support frame are fixed to the first side frame and the second side frame respectively by connecting plate external bolts. Limit seats are provided on one side of the first side frame and the second side frame and the front surface of the rear support frame.

[0013] Preferably, the upper surfaces of the first side frame and the second side frame are provided with directional grooves, and the lower ends of both ends of the slide rail mounting sleeve of the first moving part are provided with directional wheels, and the directional wheels move along the directional grooves.

[0014] Preferably, the front surface of the waste bin is provided with a cleaning opening, and the cleaning opening communicates with the receiving cavity, and the inside of the cleaning opening is sealed by an opening plate.

[0015] Preferably, a cutting method for a cutting device for a front sound insulation pad of a new energy vehicle includes the following steps: Step 1: Place the sound insulation pad on the cutting base and arrange them neatly. Then, start the ball screw slide rail of the second moving part to move the first moving part. Adjust the positions of the first cutting blade, the second cutting blade, the third cutting blade and the fourth cutting blade. Then, start the ball screw slide rail of the first moving part to move the protective cover to the far right. Step 2: After adjustment, start the electric push rod to drive the fixed base plate to press down the sound insulation pad, start the four cylinders to drive the first cutting blade, second cutting blade, third cutting blade and fourth cutting blade to move down respectively, and the bottom surfaces of the first cutting blade, second cutting blade, third cutting blade and fourth cutting blade move down in sequence; Step 3: Then restart the ball screw slide rail of the first moving part to drive the first cutting blade, the second cutting blade, the third cutting blade and the fourth cutting blade to move from right to left to cut the sound insulation pad. After the cutting is completed, the first cutting blade, the second cutting blade, the third cutting blade and the fourth cutting blade return to the initial position, and the fixed base plate also returns to the initial position. Step 4: Then restart the ball screw slide of the second moving part to move the first moving part to the next cutting position. Then use the fixed base plate to fix the sound insulation pad. Then use the first cutting blade, the second cutting blade, the third cutting blade and the fourth cutting blade to cut the sound insulation pad in sequence. Repeat this operation. Step 5: Once there is too much waste inside the receiving chamber, pull out the opening plate, remove the waste from the cleaning opening, and then reinsert the opening plate to seal it.

[0016] Compared with the prior art, the beneficial effects of the present invention are: (1) This invention provides a first cutting blade, a second cutting blade, a third cutting blade, and a fourth cutting blade inside a protective sleeve. Each of these blades is moved by a cylinder, and the fixed heights of the four cylinders decrease sequentially from left to right at equal intervals, ensuring that the lowest points of the first, second, third, and fourth cutting blades also decrease sequentially. The ball screw slide rail of the first moving part drives the first, second, third, and fourth cutting blades to move from right to left. The first cutting blade contacts the sound insulation pad first, followed by the second, third, and fourth cutting blades in sequence. Because the first, second, and fourth cutting blades... The third and fourth cutting blades are at different heights, resulting in a progressively deeper cut during the cutting process, rather than a direct cut to the bottom. This lower pressure depth reduces the pressure on the sound insulation pad and reduces movement resistance, making it less prone to uneven cutting due to uneven thickness and material distribution. This improves the uniformity of cutting sound insulation pads for new energy vehicles and solves the problem of uneven cuts caused by the current method of cutting sound insulation pads by moving the cutting blade laterally in one go. This method results in uneven thickness and material distribution in different parts of the sound insulation pad, and uneven cut surfaces after the cutting blade presses down.

[0017] (2) By setting a first side frame and a second side frame at both ends of the rear support frame, and setting directional grooves on the upper surfaces of the first side frame and the second side frame, when the first moving part moves, the two ends of the slide rail mounting sleeve of the first moving part move along the directional groove through the directional wheels, which supports the first moving part and improves the moving stability of the first moving part, thereby improving the cutting stability of the first cutting knife, the second cutting knife, the third cutting knife and the fourth cutting knife, making it less likely to be obstructed and shake, and improving the flatness of the cutting.

[0018] (3) By setting a fixing component at the lower end of the cutting component, the protective sleeve moves in the frame groove of the fixing frame. The electric push rod drives the fixing base plate to press down the sound insulation pad to fix the sound insulation pad. The fixing component moves with the first moving part. Therefore, when cutting, the position of the fixing base plate pressing down the sound insulation pad does not hinder the normal cutting operation. The existing method directly cuts the sound insulation pad at both ends. After cutting one strip, when cutting the next strip, one end will lose the pressing and fixing effect. The cutting will be uneven and uneven. If it is fixed, the fixing structure or the sound insulation pad needs to be moved again, which is time-consuming, labor-intensive and inflexible. Moving with the first moving part is more time-saving and labor-saving than the existing direct fixing and improves flexibility. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the connection structure between the cutting component and the fixing component of the present invention; Figure 3 This is a schematic diagram of the equiaxial structure of the internal cross-section of the protective sleeve of the present invention; Figure 4 This is a schematic diagram of the fixed component structure of the present invention; Figure 5 This is a schematic diagram of the support component structure of the present invention; Figure 6 This is a rear view schematic diagram of the support component of the present invention.

[0020] In the diagram: 1. Cutting base; 2. Waste bin; 3. Cutting groove; 4. Receiving chamber; 5. Cleaning opening; 6. Opening plate; 7. Cutting assembly; 8. Fixing assembly; 9. Support assembly; 10. First moving part; 11. Second moving part; 12. Connecting seat; 13. Protective sleeve; 14. Cover plate; 15. Ball screw slide rail; 16. Slide rail mounting sleeve; 17. Directional wheel; 18. First cutting blade; 19. Second cutting blade; 20. Third cutting blade ; 21. Fourth cutting blade; 22. Cylinder; 23. Cylinder mounting bracket; 24. Fixed frame; 25. Fixed base plate; 26. Connecting plate; 27. Electric push rod; 28. Rear support frame; 29. ​​First side frame; 30. Orientation slide; 31. Limit seat; 32. Stabilizing top frame; 33. Connecting plate; 34. Frame groove; 35. Second side frame; 36. Vent hole; 37. Single-headed fastener; 38. Fixing plate; 39. Screw; 40. Mounting cavity. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0022] Please see Figure 1-6An embodiment of the present invention provides a cutting device for a front sound insulation pad for a new energy vehicle, comprising a cutting base 1, a cutting groove 3 extending vertically through the upper surface of the cutting base 1, a cutting assembly 7 above the cutting base 1, a fixing assembly 8 at the lower end of the cutting assembly 7, and a supporting assembly 9 at the top end of the cutting assembly 7. The cutting assembly 7 includes a first moving part 10 and a second moving part 11, the second moving part 11 driving the first moving part 10 to move via a connecting seat 12. Both the first moving part 10 and the second moving part 11 include a slide rail mounting sleeve 16 and a ball screw slide rail 15, and the ball screw slide rail 15 is installed inside the slide rail mounting sleeve 16. The ball screw slide rail 15 of the first moving part 10 is connected to a protective sleeve 13, the protective sleeve 13 has a vertically through mounting cavity 40 inside, a cover plate 14 is fixed to the top end of the protective sleeve 13 by external bolts, and a first cutting blade 18 is disposed inside the mounting cavity 40. A second cutting blade 19 is provided on one side, a third cutting blade 20 is provided on one side of the second cutting blade 19, and a fourth cutting blade 21 is provided on one side of the third cutting blade 20. The first cutting blade 18, the second cutting blade 19, the third cutting blade 20, and the fourth cutting blade 21 are fixed to the fixing plate 38 by screws 39. A cylinder 22 is provided at the upper end of the fixing plate 38. The fixing height of the four cylinders 22 decreases equidistantly from left to right, realizing the cutting of the first cutting blade 18, the second cutting blade 19, the third cutting blade 20, the fourth cutting blade 21, and the fourth cutting blade 21. The lowest points of the third cutting blade 20 and the fourth cutting blade 21 also decrease sequentially. The first cutting blade 18 contacts the sound insulation pad first, followed by the second cutting blade 19, the third cutting blade 20, and the fourth cutting blade 21 in sequence. Because the first cutting blade 18, the second cutting blade 19, the third cutting blade 20, and the fourth cutting blade 21 have different heights, the cutting depth of contact with the pad increases sequentially during cutting, rather than cutting directly to the bottom, thus improving the flatness of the cutting. The fixing component 8 includes a fixing frame 24 and a connecting plate 26, and the connecting plate 26 is heat-fused to the fixing frame 24. The connecting plate 26 is connected to the first moving part 10 through an electric push rod 27. A frame groove 34 is provided at the center of the fixing frame 24. Fixing base plates 25 are provided on both lower surfaces of the fixing frame 24. The electric push rod 27 drives the fixing base plates 25 to press down on the sound insulation pad to fix the sound insulation pad. The fixing component 8 moves with the first moving part 10, so the position of the fixing base plates 25 pressing down on the sound insulation pad does not hinder the normal cutting operation during cutting. There is no need to re-fix the position of the sound insulation pad, which saves time and effort and improves flexibility. The support assembly 9 includes a rear support frame 28, with a stabilizing top frame 32 welded to its top. One end of the stabilizing top frame 32 is welded and fixed to the slide rail mounting sleeve 16 of the second moving part 11, enhancing the stability of the second moving part 11. The support assembly 9 also includes a first side frame 29 and a second side frame 35. Both ends of the rear support frame 28 are fixed to the first side frame 29 and the second side frame 35 respectively by external bolts to the connecting plate 33. Limiting seats 31 are provided on one side of the first side frame 29 and the front surface of the rear support frame 28 to fix the cutting base 1. The limiting effect prevents positional deviation and improves the fixing stability. The upper surfaces of the first side frame 29 and the second side frame 35 are provided with directional grooves 30. The lower ends of both ends of the slide rail mounting sleeve 16 of the first moving part 10 are provided with directional wheels 17, and the directional wheels 17 move along the directional grooves 30 to support the first moving part 10, thereby improving the moving stability of the first moving part 10. This improves the cutting stability of the first cutting blade 18, the second cutting blade 19, the third cutting blade 20 and the fourth cutting blade 21, making them less likely to be obstructed and shake, and improving the flatness of the cutting.

[0023] Please see Figure 2 , 3 The cylinder 22 is provided with a cylinder mounting bracket 23 on its outside. There are four cylinders 22. The cylinder mounting bracket 23 is welded and fixed to the inner wall of the mounting cavity 40. The cylinder 22 is fixed to the cylinder mounting bracket 23 by a single-head fastener 37, which facilitates the disassembly and replacement of the cylinder 22. The front surface of the protective cover 13 is provided with a vent hole 36 to improve the heat dissipation effect of the cylinder 22.

[0024] Please see Figure 1 The lower end of the cutting base 1 is heat-fused with a waste bin 2. The waste bin 2 has a receiving chamber 4 inside. The upper end of the receiving chamber 4 is open and communicates with the cutting groove 3. The front surface of the waste bin 2 is provided with a cleaning opening 5, which communicates with the receiving chamber 4. The inside of the cleaning opening 5 is sealed by an opening plate 6. The cutting waste is collected through the receiving chamber 4. When there is too much waste in the receiving chamber 4, the opening plate 6 is pulled out, the waste is taken out from the cleaning opening 5, and then the opening plate 6 is reinserted to seal it.

[0025] Please see Figure 1-6 A cutting method for a cutting device used for sound insulation pads in the front of new energy vehicles includes the following steps: Step 1: Place the sound insulation pad on the cutting base 1 and arrange them neatly. Then, start the ball screw slide rail 15 of the second moving part 11 to move the first moving part 10. Adjust the positions of the first cutting blade 18, the second cutting blade 19, the third cutting blade 20 and the fourth cutting blade 21. Then, start the ball screw slide rail 15 of the first moving part 10 to move the protective cover 13 to the rightmost end. Step 2: After adjustment, start the electric push rod 27 to drive the fixed base plate 25 to press down the sound insulation pad, start the four cylinders 22 to drive the first cutting blade 18, the second cutting blade 19, the third cutting blade 20 and the fourth cutting blade 21 to move down respectively, and the bottom surfaces of the first cutting blade 18, the second cutting blade 19, the third cutting blade 20 and the fourth cutting blade 21 will decrease in sequence; Step 3: Then, restart the ball screw slide rail 15 of the first moving part 10 to drive the first cutting blade 18, the second cutting blade 19, the third cutting blade 20 and the fourth cutting blade 21 to move from right to left to cut the sound insulation pad. After the cutting is completed, the first cutting blade 18, the second cutting blade 19, the third cutting blade 20 and the fourth cutting blade 21 return to the initial position, and the fixed base plate 25 also returns to the initial position. Step 4: Then restart the ball screw slide rail 15 of the second moving part 11 to drive the first moving part 10 to the next cutting position. Then use the fixed base plate 25 to fix the sound insulation pad. Then use the first cutting blade 18, the second cutting blade 19, the third cutting blade 20 and the fourth cutting blade 21 to cut the sound insulation pad in sequence. Repeat this operation. Step 5: After there is too much waste in the receiving chamber 4, pull out the opening plate 6, remove the waste from the cleaning opening 5, and then reinsert the opening plate 6 to seal it.

[0026] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A cutting device for sound insulation pads for the front of new energy vehicles, comprising a cutting base (1), wherein the upper surface of the cutting base (1) is provided with a cutting groove (3) that runs vertically through the vehicle, characterized in that: A cutting assembly (7) is provided above the cutting base (1), a fixing assembly (8) is provided at the lower end of the cutting assembly (7), and a supporting assembly (9) is provided at the top of the cutting assembly (7). A waste bin (2) is heat-fused to the lower end of the cutting base (1), and a receiving cavity (4) is provided inside the waste bin (2). The upper end of the receiving cavity (4) is open and communicates with the cutting groove (3). The cutting assembly (7) includes a first moving part (10) and a second moving part (11). The second moving part (11) drives the first moving part (10) to move via the connecting seat (12). Both the first moving part (10) and the second moving part (11) include a slide rail mounting sleeve (16) and a ball screw slide rail (15), and the ball screw slide rail (15) is installed inside the slide rail mounting sleeve (16). The ball screw slide rail (15) of the first moving part (10) is connected to a protective sleeve (13). The protective sleeve (13) has a through mounting cavity (40) inside. 3) The top external bolts are fixed to the cover plate (14). The first cutting blade (18) is provided inside the mounting cavity (40). A second cutting blade (19) is provided on one side of the first cutting blade (18). A third cutting blade (20) is provided on one side of the second cutting blade (19). A fourth cutting blade (21) is provided on one side of the third cutting blade (20). The first cutting blade (18), the second cutting blade (19), the third cutting blade (20) and the fourth cutting blade (21) are connected by screws ( 39) Fixed to the fixing plate (38), the upper end of the fixing plate (38) is provided with a cylinder (22); the fixing component (8) includes a fixing frame (24) and a connecting plate (26), and the connecting plate (26) is heat-fused to the fixing frame (24). The connecting plate (26) is connected to the first moving part (10) through an electric push rod (27). A frame groove (34) is provided at the center of the fixing frame (24). A fixing base plate (25) is provided on both sides of the lower surface of the fixing frame (24). The cutting method of this device includes the following steps: Step 1: Place the sound insulation pad on the cutting base (1), arrange them neatly, start the ball screw slide rail (15) of the second moving part (11) to drive the first moving part (10) to move, adjust the positions of the first cutting blade (18), the second cutting blade (19), the third cutting blade (20) and the fourth cutting blade (21), start the ball screw slide rail (15) of the first moving part (10) to drive the protective sleeve (13) to move to the rightmost end; Step 2: After adjustment, start the electric push rod (27) to drive the fixed base plate (25) to press down the sound insulation pad, start the four cylinders (22) to drive the first cutting blade (18), the second cutting blade (19), the third cutting blade (20) and the fourth cutting blade (21) to move down respectively, and the bottom surfaces of the first cutting blade (18), the second cutting blade (19), the third cutting blade (20) and the fourth cutting blade (21) to move down in sequence; Step 3: Then restart the ball screw slide rail (15) of the first moving part (10) to drive the first cutting blade (18), the second cutting blade (19), the third cutting blade (20) and the fourth cutting blade (21) to move from right to left to cut the sound insulation pad. After the cutting is completed, the first cutting blade (18), the second cutting blade (19), the third cutting blade (20) and the fourth cutting blade (21) return to the initial position, and the fixed base plate (25) also returns to the initial position. Step 4: Then restart the ball screw slide rail (15) of the second moving part (11) to drive the first moving part (10) to the next cutting position. Then use the fixed base plate (25) to fix the sound insulation pad. Then use the first cutting blade (18), the second cutting blade (19), the third cutting blade (20) and the fourth cutting blade (21) to cut the sound insulation pad in sequence. Repeat this operation. Step 5: After there is too much waste in the receiving chamber (4), pull out the opening plate (6), remove the waste from the cleaning opening (5), and then reinsert the opening plate (6) to seal it.

2. The cutting device for the front sound insulation pad of a new energy vehicle according to claim 1, characterized in that: The cylinder (22) is provided with a cylinder mounting bracket (23) on its outside. There are four cylinders (22), and the cylinder mounting bracket (23) is welded and fixed to the inner wall of the mounting cavity (40). The cylinder (22) is fixed to the cylinder mounting bracket (23) by a single-head fastener (37). The front surface of the protective sleeve (13) is provided with a vent hole (36).

3. The cutting device for the front sound insulation pad of a new energy vehicle according to claim 2, characterized in that: The support assembly (9) includes a rear support frame (28), the top of which is welded with a stabilizing top frame (32), and one end of the stabilizing top frame (32) is welded and fixed to the slide rail mounting sleeve (16) of the second moving part (11).

4. The cutting device for the front sound insulation pad of a new energy vehicle according to claim 3, characterized in that: The support assembly (9) also includes a first side frame (29) and a second side frame (35). The two ends of the rear support frame (28) are fixed to the first side frame (29) and the second side frame (35) respectively by external bolts of the connecting plate (33). Limit seats (31) are provided on one side of the first side frame (29) and the second side frame (35) and the front surface of the rear support frame (28).

5. A cutting device for a sound insulation pad for the front bulkhead of a new energy vehicle according to claim 4, characterized in that: The upper surfaces of the first side frame (29) and the second side frame (35) are provided with directional grooves (30), and the lower ends of the slide rail mounting sleeve (16) of the first moving part (10) are provided with directional wheels (17), and the directional wheels (17) move along the directional grooves (30).

6. A cutting device for a sound insulation pad for the front bulkhead of a new energy vehicle according to claim 5, characterized in that: The front surface of the waste bin (2) is provided with a cleaning opening (5), and the cleaning opening (5) is interconnected with the receiving cavity (4). The inside of the cleaning opening (5) is sealed by an opening plate (6).

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