Pneumatic riveting device for automobile double-layer composite heat shield

Abstract

The utility model discloses a pneumatic riveting device for a double-layer composite heat shield of an automobile, which relates to the technical field of pneumatic riveting equipment for a double-layer composite structure heat shield of an automobile heat insulation system, and particularly comprises a main body rack, an air gun and a former, the tail end of an output shaft of the upper ejection air cylinder is connected with a belt, an air gun is installed at the tail end of the upper portion of the main machine frame and located below the upper ejection air cylinder, and an air gun switch is connected with the other end of the belt. According to the pneumatic riveting device for the automobile double-layer composite heat shield, the advanced positioning technology and pneumatic system control are utilized, the double-layer composite structure heat shield can be riveted well in a more attached and fastened mode, and the loss possibly caused by high-temperature falling after adhesive tape and glue are used for pasting is avoided; therefore, the fitting precision and the forming stability of the double-layer composite structure heat shield are ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of pneumatic riveting equipment for double-layer composite heat insulation covers of automotive heat insulation systems, specifically a pneumatic riveting device for double-layer composite heat insulation covers of automobiles. Background Technology

[0002] In the production process of double-layer composite heat insulation covers, the heat insulation material needs to be bonded to the metal body of the product to form a whole. The traditional bonding method involves first applying adhesive materials such as tape or glue to the inside of the metal body, then attaching the heat insulation material to the inside of the product body, and finally bonding the heat insulation material to the product body. This bonding method involves many steps, is costly, and reduces production efficiency. Maintaining a consistent thickness of the adhesive material during the coating process increases production difficulty. Furthermore, the heat insulation material bonded to the metal body using tape or glue may detach under high temperatures, reducing stability. Therefore, this application proposes a pneumatic riveting device for automotive double-layer composite heat insulation covers. Utility Model Content

[0003] This utility model provides a pneumatic riveting device for automotive double-layer composite heat insulation covers, which solves the problems mentioned in the background art, such as low efficiency, high cost, and risk of high-temperature detachment when using adhesive materials for double-layer composite heat insulation covers.

[0004] This utility model provides the following technical solution: a pneumatic riveting device for a double-layer composite heat insulation cover for automobiles, including a main frame, an air gun and a forming device. An upper ejector cylinder is installed on the top of the main frame. The output shaft of the upper ejector cylinder is connected to a belt. An air gun is installed at the upper end of the main frame. The air gun is located below the upper ejector cylinder, and the air gun switch is connected to the other end of the belt.

[0005] A support rod is fixed in the middle of the main frame. The top of the other end of the support rod is connected to a forming device adapted to the double-layer composite structure heat insulation cover of the automotive heat insulation system via a lower ejector cylinder. The forming device is located below the nozzle of the air gun. A pressure regulating valve is provided on one side of the bottom of the main frame, and a foot switch is provided on one side of the main frame. The air inlet of the pressure regulating valve is connected to a compressed air source, and the air outlet of the pressure regulating valve is connected to the air inlet of the foot switch. The two air outlets of the foot switch are respectively connected to the upper ejector cylinder and the lower ejector cylinder. Positioning clamps are provided on both sides of the forming device.

[0006] Preferably, when the belt is taut, the belt pulls the air gun switch; the forming device is located above the lower ejector cylinder.

[0007] Preferably, the positioning fixture includes a connecting rod connected to the forming device, a lower support plate connected to the end of the output shaft of the connecting rod, an electric telescopic rod connected to the lower support plate, and an upper pressure plate fixedly connected to the end of the output shaft of the electric telescopic rod.

[0008] Preferably, the lower support plate includes a carrier plate adapted to the automotive double-layer composite heat insulation cover and a limiting plate fixedly connected to the top of the carrier plate. The limiting plate is L-shaped, with one side of the limiting plate fixed to the end of the carrier plate away from the molding device, and the other end of the limiting plate connected to the side of the carrier plate near the vertical end of the main frame.

[0009] Preferably, the bottom of the molding machine and the bottom of the lower support plate are at the same height.

[0010] Preferably, the bottom of the upper pressure plate and the inner wall of the lower support plate are both fixed with isolation pads.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The pneumatic riveting device for the double-layer composite heat insulation cover of the car utilizes advanced positioning technology and pneumatic system control to rivet the heat insulation material to the metal body more closely and firmly, avoiding the loss caused by the possible fall-off due to high temperature after using tape and glue, thus ensuring the bonding accuracy and molding stability of the double-layer composite heat insulation cover.

[0013] 2. The pneumatic riveting device for the double-layer composite heat insulation cover of the car ensures that the production quality of each heat insulation cover can be strictly controlled due to the consistency and repeatability of the pneumatic riveting operation, thereby improving the overall consistency and quality stability of the product.

[0014] 3. This pneumatic riveting device for automotive double-layer composite heat insulation covers allows for the pneumatic riveting of the heat insulation material to the product body in a single operation, reducing labor costs and improving production efficiency. Furthermore, the device's simple structural design effectively reduces equipment costs, bringing greater economic benefits to the enterprise. By improving production efficiency and reducing operating costs, this application provides strong support for the enterprise's competitiveness in the automotive manufacturing field. Attached Figure Description

[0015] Figure 1 This is a front view of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the gas path system connection of the present invention.

[0017] Figure 3 This is a schematic diagram of the back of the structure of this utility model;

[0018] Figure 4This is a schematic diagram of the structure of this utility model in use;

[0019] Figure 5 This is a schematic diagram showing the connection between the belt and the air gun switch in this utility model.

[0020] In the diagram: 1. Main frame; 2. Upper ejector cylinder; 3. Belt; 4. Pressure regulating valve; 5. Air gun; 6. Forming device; 7. Lower ejector cylinder; 8. Foot switch; 9. Air source; 10. Electric telescopic rod; 11. Upper pressure plate; 12. Connecting rod; 13. Lower support plate. Detailed Implementation

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See Figure 1 This utility model provides a pneumatic riveting device for a double-layer composite structure heat insulation cover in an automotive heat insulation system. It includes a main frame 1, an air gun 5, and a forming device 6. An upper ejector cylinder 2 is mounted at the top of the main frame 1, and a belt 3 is connected to the end of the output shaft of the upper ejector cylinder 2. The air gun 5 is mounted at the upper end of the main frame 1, and the other end of the belt 3 is connected to a switch on the air gun 5. Figure 5 As shown, when the upper ejector cylinder 2 ejects, it can pull the belt 3. When the belt 3 is taut, it can pull the switch of the air gun 5, so that the switch of the air gun 5 is in the open state. At this time, the rivet inside the air gun 5 can be ejected under the action of compressed air.

[0023] A support rod is fixed in the middle of the main frame 1, and a lower ejector cylinder is fixed at the top of the other end of the support rod. A forming device 6, compatible with the double-layer composite structure heat shield of an automotive heat insulation system, is installed at the end of the output shaft of the lower ejector cylinder 7. When the lower ejector cylinder 7 is working, it can drive the forming device 6 to move, shortening the distance between the forming device 6 and the air gun 5. This shortens the distance the rivet needs to travel to contact the product to be riveted, accelerating the contact speed between the rivet and the product, thereby improving the riveting efficiency of the device. Furthermore, after passing through the product, the rivet will encounter the forming device 6, causing the rivet head to bend, thus achieving through-riveting between the rivet and the product.

[0024] A foot switch 8 is provided on one side of the main frame 1, and a pressure regulating valve 4 is provided on one side of the bottom of the main frame 1. The inlet of the pressure regulating valve 4 is connected to a compressed air source, and the outlet of the pressure regulating valve 4 is connected to the inlet of the foot switch 8. The outlet of the foot switch 8 is connected to the upper ejector cylinder 2 and the lower ejector cylinder 7 respectively. Figure 2As shown, and in some embodiments of this application, the compressed air discharged from the upper ejector cylinder 2 and the lower ejector cylinder 7 is directly discharged into the atmosphere. By controlling the on / off state of the foot switch 8, the purpose of controlling the upper ejector cylinder 2 and the lower ejector cylinder 7 to work simultaneously can be achieved.

[0025] Air gun 5 is a pneumatic rivet gun in the existing technology, and its model can be S-6531.

[0026] As described above, this device uses compressed air as a power source and controls the opening and closing of the air gun 5 and the raising and lowering of the forming device 6 by controlling the air circuit, thereby achieving the riveting of a double-layer composite structure. The pneumatic system has advantages such as fast response speed, high control precision, and simple maintenance, making it very suitable for applications requiring frequent and accurate riveting.

[0027] The pneumatic riveting device for the double-layer composite heat insulation cover in automotive heat insulation systems also includes a positioning fixture. The positioning fixture includes a connecting rod 12 connected to the forming device 6, a lower support plate 13 connected to the end of the output shaft of the connecting rod 12, an electric telescopic rod 10 connected to the lower support plate 13, and an upper pressure plate 11 fixedly connected to the end of the output shaft of the electric telescopic rod 10. The extension and retraction of the electric telescopic rod 10 can change the height of the upper pressure plate 11. When the upper pressure plate 11 moves above the lower support plate 13, it facilitates the placement of the heat insulation material and metal product body, the components of the automotive double-layer composite heat insulation cover. When the upper pressure plate 11 presses down on the heat insulation material and metal product body, it facilitates the riveting and bonding of the automotive double-layer composite heat insulation cover.

[0028] The lower support plate 13 includes a carrier plate adapted to the automotive double-layer composite heat insulation cover and a limiting plate fixedly connected to the top of the carrier plate. The limiting plate is L-shaped, with one side of the limiting plate fixed to the end of the carrier plate away from the forming device 6, and the other end of the limiting plate connected to the side of the carrier plate near the vertical end of the main frame 1. Through the setting of the lower support plate 13, the lower support plate 13 can limit the components of the automotive double-layer composite heat insulation cover, so that the placement position of the components of the automotive double-layer composite heat insulation cover can be kept consistent, thereby improving the consistency and quality stability of the product.

[0029] The bottom of the molding device 6 and the bottom of the lower support plate 13 are at the same height, which facilitates the movement of the positioning fixture. The bottom of the upper pressure plate 11 and the inner wall of the lower support plate 13 are both fixed with isolation pads. The isolation pads can be made of rubber. By setting the isolation pads, the clamping stability of the positioning fixture can be improved.

[0030] In summary: When using the pneumatic riveting device for the automotive double-layer composite heat insulation cover, the heat insulation material for producing the automotive double-layer composite heat insulation cover is placed inside the metal product body, and the positioning jig is used to clamp and fix the metal product body and the heat insulation material. At this time, the parts of the metal product and the heat insulation material to be riveted are located between the air gun 5 and the forming device 6, and the product is placed on the forming device, such as... Figure 4 As shown, when the operator presses the foot switch 8, the air circuit system is connected to the gas supply. The upper ejector cylinder 2 and the lower ejector cylinder 7 work simultaneously. The upper ejector cylinder 2 pushes out and pulls the belt 3, which in turn tightens and pulls the switch of the air gun 5. The gas pushes the rivet inside the air gun 5 downward. After moving a certain distance, the rivet will contact the product to be riveted and pass through the product under the action of the gas. The lower ejector cylinder 7 moves and pushes the forming device 6 upward. The forming device 6 moves the product upward, shortening the movement time of the rivet and improving the riveting efficiency. To improve efficiency, after the rivet passes through the product, it will encounter the forming device 6, causing the rivet head to bend, thus achieving through riveting between the rivet and the product. After riveting is completed, the upper ejector cylinder 2 resets, the belt 3 returns to its initial state, and the air gun 5 is switched off, thus returning the air gun 5 to its initial state, ready for riveting again. The lower ejector cylinder 7 drives the forming device 6 to reset, and the forming device 6 drives the double-layer composite structure heat insulation cover of the automotive heat insulation system to reset through the positioning clamp, making it easy to remove the double-layer composite structure heat insulation cover of the automotive heat insulation system.

[0031] All standard parts used in this utility model can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods of each part all adopt conventional means such as bolts that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art. Although the embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pneumatic riveting device for a double-layer composite heat insulation cover for automobiles, comprising a main frame (1), an air gun (5), and a forming device (6), characterized in that: The main frame (1) is equipped with an upper ejector cylinder (2) at the top. The output shaft of the upper ejector cylinder (2) is connected to a belt (3). An air gun (5) is installed at the upper end of the main frame (1). The air gun (5) is located below the upper ejector cylinder (2), and the switch of the air gun (5) is connected to the other end of the belt (3). A support rod is fixed in the middle of the main frame (1). The top of the other end of the support rod is connected to a forming device (6) adapted to the double-layer composite structure heat shield of the automotive heat insulation system through a lower ejector cylinder (7). The forming device (6) is located below the nozzle of the air gun (5). A pressure regulating valve (4) is provided on one side of the bottom of the main frame (1). A foot switch (8) is provided on one side of the main frame (1). The air inlet of the pressure regulating valve (4) is connected to a compressed air source. The air outlet of the pressure regulating valve (4) is connected to the air inlet of the foot switch (8). The two air outlets of the foot switch (8) are respectively connected to the upper ejector cylinder (2) and the lower ejector cylinder (7). Positioning clamps are provided on both sides of the forming device (6).

2. The pneumatic riveting device for a double-layer composite heat insulation cover for automobiles according to claim 1, characterized in that: When the belt (3) is taut, the belt (3) pulls the air gun (5) switch; the forming device (6) is located above the lower ejector cylinder (7).

3. The pneumatic riveting device for a double-layer composite heat insulation cover for automobiles according to claim 1, characterized in that: The positioning fixture includes a connecting rod (12) connected to the forming device (6), a lower support plate (13) connected to the end of the output shaft of the connecting rod (12), an electric telescopic rod (10) connected to the lower support plate (13), and an upper pressure plate (11) fixedly connected to the end of the output shaft of the electric telescopic rod (10).

4. The pneumatic riveting device for a double-layer composite heat insulation cover for automobiles according to claim 3, characterized in that: The lower support plate (13) includes a support plate adapted to the double-layer composite heat insulation cover of the car and a limiting plate fixedly connected to the top of the support plate. The limiting plate is L-shaped. One side of the limiting plate is fixed to the end of the support plate away from the molding machine (6), and the other end of the limiting plate is connected to the side of the support plate near the vertical end of the main frame (1).

5. The pneumatic riveting device for a double-layer composite heat insulation cover for automobiles according to claim 4, characterized in that: The bottom of the molding machine (6) and the bottom of the lower support plate (13) are at the same height.

6. A pneumatic riveting device for a double-layer composite heat insulation cover for automobiles according to claim 5, characterized in that: The bottom of the upper pressure plate (11) and the inner wall of the lower support plate (13) are both fixed with isolation pads.

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