A ring cutting device for a car sound insulation mat

By designing a ring-cutting device for automotive sound insulation pads with fixed tooling and robotic components, the problem of low efficiency in existing ring-cutting devices has been solved, achieving automated positioning and efficient cutting, thus improving work efficiency and convenience.

CN122165497APending Publication Date: 2026-06-09芜湖高普汽车零部件有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
芜湖高普汽车零部件有限公司
Filing Date
2026-04-09
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing circumferential cutting devices are inefficient, require manual positioning, and have idle time, resulting in low circumferential cutting efficiency.

Method used

Design a circular cutting device for automotive sound insulation pads, comprising a fixed fixture and a robot component. The fixed fixture is arranged in a circular shape and uses an electric slide rail and clamping mechanism to achieve automatic positioning and cutting. The robot component performs the cutting and can achieve arbitrary shape cutting through programming control.

Benefits of technology

It improved work efficiency, reduced equipment idle time, and achieved automated positioning and cutting, thus improving the efficiency and convenience of sound insulation mat cutting.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a circular cutting device for automotive sound insulation pads. When station one is working, it can feed materials to subsequent stations. After station one completes its cutting, it continues cutting to the next station, while station one unloads materials. This eliminates idle time, significantly increasing work efficiency. Furthermore, manual positioning of the sound insulation pad is unnecessary, making clamping convenient and quick. When clamping the sound insulation pad, it is first placed on the top surface of the cutting table. The retraction end of the cylinder retracts, causing the first and second connecting plates to descend, simultaneously lowering the pressure block. A sensor is located at the bottom of the pressure block, connected to the cylinder signal. When the sensor detects contact with the object, it sends a feedback signal to the cylinder, causing the cylinder to stop retracting. This fixes the sound insulation pad to the surface of the cutting table. When the cutting table touches a position sensor, the sensor transmits a signal to the electric slide rail, stopping the electric slide rail. Then, the robot component is activated to cut the sound insulation pad.
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Description

Technical Field

[0001] This invention relates to the field of cutting equipment technology, specifically to a ring-shaped cutting device for automotive sound insulation pads. Background Technology

[0002] Vehicle quietness is a crucial performance indicator in the automotive industry, especially for passenger cars. Sound insulation pads absorb heat and noise, while also providing some heat insulation and vibration damping, ensuring a relatively quiet and comfortable environment inside the vehicle and improving passenger comfort. Sound insulation pads offer good sound insulation; the larger the coverage area, the better the sound insulation effect.

[0003] Existing ring-cutting devices are equipped with only one station, and can only load and unload materials after the ring-cutting is completed, resulting in idle time for the equipment and low ring-cutting efficiency. Workers need to first position the sound insulation pad, and then use a cutting tool to cut it after positioning, which has low positioning efficiency. Therefore, this invention proposes a ring-cutting device for automotive sound insulation pads to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a ring-shaped cutting device for automotive sound insulation pads, which aims to solve the problems mentioned in the background art.

[0005] This invention is achieved through the following technical solution:

[0006] This invention relates to a ring-shaped cutting device for automotive sound insulation pads, comprising a fixing fixture and a robot assembly;

[0007] Multiple fixtures are provided, and the multiple fixtures are distributed in a ring shape on the outside of the robot assembly.

[0008] The fixed fixture includes an electric slide rail, a cutting table, and a clamping mechanism. The bottom of the cutting table is provided with a slider that is slidably connected to the electric slide rail. There are two clamping mechanisms, which are distributed opposite to each other on the left and right sides of the cutting table. Each clamping mechanism includes a cylinder, which is fixedly mounted on the outer wall of the cutting table. The output end of the cylinder is fixedly connected to a first connecting plate, and the first connecting plate is fixedly connected to a second connecting plate. The bottom of the second connecting plate is provided with two oppositely distributed pressure blocks, which are located above the cutting table and are used to clamp the sound insulation pad.

[0009] The robot assembly includes a robotic arm, on which a blade holder is fixedly mounted, and on which a rotatably connected blade head is mounted, and on which a rotatable cutting blade is mounted.

[0010] Preferably, it also includes a frame, with multiple fixed fixtures arranged in a ring on the top surface of the frame, and the electric slide rail is fixedly connected to the frame.

[0011] Preferably, the electric slide rails are provided in two sets, which are distributed opposite to each other. A position sensor is provided between the two sets of electric slide rails near the robot component, and the position sensor is signal-connected to the electric slide rails.

[0012] Preferably, two sliders form a slider group, and there are two slider groups. The two slider groups are distributed opposite to each other on the electric slide rail, and the two sliders in the slider group are distributed opposite to each other.

[0013] Preferably, the robot assembly further includes a base, and the robotic arm is rotatably connected to the base.

[0014] Preferably, the robotic arm includes multiple arm segments, which are sequentially rotatably connected.

[0015] Preferably, the tool holder is fixedly disposed on the end face of the arm segment furthest from the base.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. When the sound insulation pad needs to be circumferentially cut, the fixed fixture on the far left is station number one. From left to right, they are station number two, station number three, and station number four. Place the sound insulation pad to be cut on station number one, i.e., the top surface of the cutting table. Then, start the clamping mechanism. The telescopic end of the cylinder retracts, causing the first connecting plate and the second connecting plate to descend. At the same time, it causes the pressure block to descend. The bottom of the pressure block is equipped with a sensor, which is connected to the cylinder signal. When the sensor detects contact with the object, the sensor sends feedback to the cylinder, and the cylinder stops retracting. At this time, the pressure block fixes the sound insulation pad on the surface of the cutting table. There are four pressure blocks, which are arranged in a matrix. Then, start the electric slide rail. The electric slide rail slides the slider closer to the robot component. When the cutting table touches the position sensor, the position sensor transmits a signal to the electric slide rail, and the electric slide rail stops. Then, start the robot component to cut the sound insulation pad.

[0018] 2. When station 1 is working, the subsequent stations can be loaded with materials. After station 1 finishes cutting, the subsequent stations can be cut one after another. At this time, station 1 can be unloaded. In this way, the machine does not idle, which greatly increases the work efficiency. Moreover, no manual positioning and clamping is required when clamping and positioning the sound insulation pad, making clamping convenient and quick. Attached Figure Description

[0019] Figure 1 This is a perspective view of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the electric slide rail and position sensor structure in this invention;

[0021] Figure 3 This is a schematic diagram showing the connection between the cutting table and the clamping mechanism in this invention;

[0022] Figure 4 This is a schematic diagram of the clamping mechanism in this invention;

[0023] Figure 5 This is a schematic diagram of the structure of the tool holder, tool head, and cutting tool in this invention.

[0024] In the diagram: 1. Frame;

[0025] 2. Fixed fixture; 21. Electric slide rail; 22. Cutting table; 23. Slider; 24. Clamping mechanism; 25. Cylinder; 26. First connecting plate; 27. Second connecting plate; 28. Pressure block; 29. ​​Position sensor;

[0026] 3. Robot components; 31. Base; 32. Robotic arm; 33. Tool holder; 34. Tool head; 35. Cutting blade. Detailed Implementation

[0027] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0028] The components of the embodiments of the invention described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0029] Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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 the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0032] Please see Figures 1 to 5 This invention provides a technical solution: a circular cutting device for automotive sound insulation pads, comprising a fixed fixture 2 and a robot assembly 3; multiple fixed fixtures 2 are provided, arranged in a ring around the outside of the robot assembly 3; the fixed fixture 2 includes an electric slide rail 21, a cutting table 22, and a clamping mechanism 24, the bottom of the cutting table 22 is provided with a slider 23, which is slidably connected to the electric slide rail 21; two clamping mechanisms 24 are provided, which are distributed opposite to each other on the left and right sides of the cutting table 22. 4 includes a cylinder 25, which is fixedly mounted on the outer wall of the cutting table 22. The output end of the cylinder 25 is fixedly connected to a first connecting plate 26, and the first connecting plate 26 is fixedly connected to a second connecting plate 27. The bottom of the second connecting plate 27 is provided with two opposing pressure blocks 28, which are located above the cutting table 22 and are used to clamp the sound insulation pad. The robot component 3 includes a robotic arm 32, on which a blade holder 33 is fixedly mounted. The blade holder 33 is provided with a rotatably connected blade head 34, and the blade head 34 is provided with a rotatable cutting blade 35.

[0033] In this embodiment, when it is necessary to circumferentially cut the sound insulation pad, please refer to the appendix. Figure 1 The fixed fixture 2 on the far left is station number one. From left to right, they are station number two, station number three, and station number four. The sound insulation pad to be cut is placed on station number one, i.e., the top surface of the cutting table 22. Then, the clamping mechanism 24 is activated. The telescopic end of the cylinder 25 retracts, causing the first connecting plate 26 and the second connecting plate 27 to descend, and simultaneously causing the pressure block 28 to descend. The bottom of the pressure block 28 is equipped with a sensor, which is connected to the cylinder 25. When the sensor detects contact with the object, the sensor provides feedback. When cylinder 25 stops retracting, pressure block 28 fixes the sound insulation pad onto the surface of cutting table 22. There are four pressure blocks 28 arranged in a matrix. Then, electric slide rail 21 is activated, and the electric slide rail 21 slides the slider 23 closer to the robot component 3. When the cutting table 22 touches the position sensor 29, the position sensor 29 transmits a signal to the electric slide rail 21, and the electric slide rail 21 stops. Then, the robot component 3 is activated to cut the sound insulation pad.

[0034] Robot component 3 operates as follows: After startup, the multi-segment arm of the robotic arm 32 begins to extend or retract, bringing the cutter head 33 above the sound insulation pad. Then, the robotic arm 32 moves the cutter head 33 closer to the sound insulation pad. When the cutting blade 35 touches the sound insulation pad, cutting begins. The cutting path is pre-set, and at this time, under the action of the robotic arm 32, the cutter head 34, and the cutting blade 35, cutting of any shape can be achieved. The cutting path is used to control the operation of robot component 3 after being programmed. After cutting is completed, the electric slide rail 21 drives the cutting table 22 to reset.

[0035] When station 1 is working, materials can be loaded to the subsequent stations. After station 1 finishes cutting, the subsequent stations will be cut one after another. At this time, materials can be unloaded from station 1. This way, the machine does not idle, which greatly increases work efficiency. In addition, no manual positioning and clamping is required when clamping and positioning the sound insulation pad, making clamping convenient and quick.

[0036] For further details, please refer to Figure 1 It also includes a frame 1, with multiple fixed fixtures 2 arranged in a ring on the top surface of the frame 1, and an electric slide rail 21 fixedly connected to the frame 1.

[0037] In this embodiment, multiple fixed fixtures 2 are set up. When the first station is working, the subsequent stations can be loaded with materials. After the first station finishes cutting, the subsequent stations are cut one after another. At this time, the first station can be unloaded. In this way, the machine does not idle, which greatly increases the work efficiency. Moreover, the fixed fixtures 2 do not affect each other.

[0038] For further details, please refer to Figure 2 Two sets of electric slide rails 21 are provided, which are distributed opposite to each other. A position sensor 29 is provided between the two sets of electric slide rails 21 near the robot component 3. The position sensor 29 is connected to the electric slide rail 21 by signal.

[0039] In this embodiment, when the cutting table 22 touches the position sensor 29, the position sensor 29 transmits a signal to the electric slide rail 21, and the electric slide rail 21 stops, so as to prevent the cutting table 22 from hitting the robot component 3 and also to prevent the cutting table 22 from getting too close to the robot component 3, which would prevent the cutting from being completed.

[0040] For further details, please refer to Figure 3 Two sliders 23 form a slider group. There are two slider groups. The two slider groups are distributed opposite to each other on the electric slide rail 21. The two sliders 23 in the slider group are distributed opposite to each other.

[0041] In this embodiment, the four sliders 23 are arranged in a matrix, and two sliders 23 form a slider group. The two slider groups are distributed relative to each other on the electric slide rail 21, which increases the stability of the cutting table 22.

[0042] For further details, please refer to Figure 1 The robot component 3 also includes a base 31, and the robotic arm 32 is rotatably connected to the base 31.

[0043] In this embodiment, the base 31 provides support and stability for the robotic arm 32.

[0044] For further details, please refer to Figure 1 The robotic arm 32 includes multiple arm segments, which are connected and rotated sequentially.

[0045] For further details, please refer to Figure 5 The tool holder 33 is fixedly located on the end face of the arm segment furthest from the base 31.

[0046] In this embodiment, the robot component 3 operates as follows: After startup, the multi-segment arm of the robotic arm 32 begins to extend or retract, bringing the cutter head 33 above the sound insulation pad. Then, the robotic arm 32 drives the cutter head 33 closer to the sound insulation pad. When the cutting blade 35 touches the sound insulation pad, cutting begins. A cutting path is preset. At this time, under the action of the robotic arm 32, the cutter head 34, and the cutting blade 35, cutting of any shape can be achieved. The cutting path is used to control the operation of the robot component 3 after being programmed. After cutting is completed, the electric slide rail 21 drives the cutting table 22 to reset.

[0047] The working principle and usage process of this invention: When it is necessary to circumferentially cut the sound insulation pad, please refer to the appendix. Figure 1 The fixed fixture 2 on the far left is station number one. From left to right, they are station number two, station number three, and station number four. The sound insulation pad to be cut is placed on station number one, i.e., the top surface of the cutting table 22. Then, the clamping mechanism 24 is activated. The telescopic end of the cylinder 25 retracts, causing the first connecting plate 26 and the second connecting plate 27 to descend, and simultaneously causing the pressure block 28 to descend. The bottom of the pressure block 28 is equipped with a sensor, which is connected to the cylinder 25. When the sensor detects contact with the object, the sensor provides feedback. When cylinder 25 stops retracting, pressure block 28 fixes the sound insulation pad onto the surface of cutting table 22. There are four pressure blocks 28 arranged in a matrix. Then, electric slide rail 21 is activated, and the electric slide rail 21 slides the slider 23 closer to the robot component 3. When the cutting table 22 touches the position sensor 29, the position sensor 29 transmits a signal to the electric slide rail 21, and the electric slide rail 21 stops. Then, the robot component 3 is activated to cut the sound insulation pad.

[0048] Robot component 3 operates as follows: After startup, the multi-segment arm of the robotic arm 32 begins to extend or retract, bringing the cutter head 33 above the sound insulation pad. Then, the robotic arm 32 moves the cutter head 33 closer to the sound insulation pad. When the cutting blade 35 touches the sound insulation pad, cutting begins. The cutting path is pre-set, and at this time, under the action of the robotic arm 32, the cutter head 34, and the cutting blade 35, cutting of any shape can be achieved. The cutting path is used to control the operation of robot component 3 after being programmed. After cutting is completed, the electric slide rail 21 drives the cutting table 22 to reset.

[0049] When station 1 is working, materials can be loaded to the subsequent stations. After station 1 finishes cutting, the subsequent stations will be cut one after another. At this time, materials can be unloaded from station 1. This way, the machine does not idle, which greatly increases work efficiency. In addition, no manual positioning and clamping is required when clamping and positioning the sound insulation pad, making clamping convenient and quick.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A ring-shaped cutting device for automotive sound insulation pads, characterized in that: Includes fixed tooling (2) and robot components (3); The fixed fixture (2) is provided in multiple ways, and the multiple fixed fixtures (2) are distributed in a ring shape on the outside of the robot assembly (3); The fixed fixture (2) includes an electric slide rail (21), a cutting table (22), and a clamping mechanism (24). The bottom of the cutting table (22) is provided with a slider (23), which is slidably connected to the electric slide rail (21). There are two clamping mechanisms (24), which are distributed on the left and right sides of the cutting table (22). The clamping mechanism (24) includes a cylinder (25), which is fixedly installed on the outer wall of the cutting table (22). The output end of the cylinder (25) is fixedly connected to a first connecting plate (26), and the first connecting plate (26) is fixedly connected to a second connecting plate (27). The bottom of the second connecting plate (27) is provided with two opposing pressure blocks (28), which are located above the cutting table (22) and are used to clamp the sound insulation pad. The robot component (3) includes a robotic arm (32), on which a blade holder (33) is fixedly mounted, and a blade head (34) is rotatably connected to the blade holder (33), and a rotatable cutting blade (35) is mounted on the blade head (34).

2. The annular cutting device for automotive sound insulation pads according to claim 1, characterized in that: It also includes a frame (1), and multiple fixed fixtures (2) are distributed in a ring on the top surface of the frame (1), and the electric slide rail (21) is fixedly connected to the frame (1).

3. The annular cutting device for automotive sound insulation pads according to claim 2, characterized in that: The electric slide rail (21) is provided in two sets, and the two sets of electric slide rail (21) are distributed opposite to each other. A position sensor (29) is provided between the two sets of electric slide rail (21) near the robot component (3). The position sensor (29) is signal connected to the electric slide rail (21).

4. The annular cutting device for automotive sound insulation pads according to claim 3, characterized in that: Two sliders (23) form a slider group, and there are two slider groups. The two slider groups are distributed opposite to each other on the electric slide rail (21). The two sliders (23) in the slider group are distributed opposite to each other.

5. The annular cutting device for automotive sound insulation pads according to claim 1, characterized in that: The robot assembly (3) also includes a base (31), and the robotic arm (32) is rotatably connected to the base (31).

6. The annular cutting device for automotive sound insulation pads according to claim 5, characterized in that: The robotic arm (32) includes multiple arm segments, which are connected in sequence by rotation.

7. The annular cutting device for automotive sound insulation pads according to claim 6, characterized in that: The blade holder (33) is fixedly located on the end face of the arm segment furthest from the base (31).