Welding device for instrument cover assembly

Abstract

The utility model relates to the technical field of automobile accessory processing, in particular to a welding device for an instrument cover assembly, which comprises a workbench, a lifting frame is fixedly arranged at the top of the workbench, a hydraulic cylinder is fixedly mounted at the top of the lifting frame, a lifting plate fixedly connected with the output end of the hydraulic cylinder is mounted on the lifting frame in a sliding manner, and the lifting plate is fixedly connected with the output end of the hydraulic cylinder. A mounting frame is fixedly arranged at the bottom of the lifting plate, and a plurality of welding assemblies are fixedly arranged at the bottom of the mounting frame. By arranging the welding assembly, the heat preservation assembly, the heat conduction assembly and the cooling assembly, after forming, the welding head retracts into the heat preservation sleeve, the heat loss of the welding head is effectively reduced, the welding head can rapidly reach the needed temperature in the next welding process, the service life of the welding head is prolonged, meanwhile, cooling airflow only cools a heat conduction cover and a riveting column, and the welding efficiency is improved. The welding head does not need to be cooled, the cooling speed of the riveting column is increased, the time of the whole welding process is shortened, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts processing technology, and in particular to a welding device for an instrument panel cover assembly. Background Technology

[0002] The automotive instrument panel cover assembly is an assembly made up of two parts: the instrument panel cover and the decorative ring. Both the instrument panel cover and the decorative ring are made of plastic. The welding of the instrument panel cover assembly usually involves using a heated welding head to melt the welding post at high temperature to form a cover-shaped boss, thereby hot-riveting the decorative ring to the instrument panel cover, so that the instrument panel cover and the decorative ring are fixedly connected.

[0003] A hot riveting and welding device for automotive parts processing, disclosed in Chinese Patent Publication No. CN222156679U, solves the problem that the hot riveting of automotive filters is usually done manually, which relies on human experience, resulting in unstable quality and low processing efficiency. However, according to the relevant technology and existing technology, after the hot riveting welding machine heats and forms the rivet post through the welding head, it usually uses high-pressure airflow to blow onto the welding area to cool down the formed rivet post and welding head in time, so as to avoid the welding head lifting and causing wire pulling. This cooling method requires cooling the heated welding head and plastic parts at the same time, which is slow. At the same time, the welding head loses a lot of heat, and the welding head needs to be heated for a long time to reach the required temperature for the next welding, which reduces the processing speed. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art, solve the problems mentioned in the background art, and provide a welding device for an instrument cover assembly.

[0005] The objective of this utility model is achieved through the following technical solution: a welding device for an instrument cover assembly, comprising a workbench, a lifting frame fixedly mounted on the top of the workbench, a hydraulic cylinder fixedly mounted on the top of the lifting frame, a lifting plate slidably mounted on the lifting frame and fixedly connected to the output end of the hydraulic cylinder, a mounting frame fixedly mounted on the bottom of the lifting plate, and a plurality of welding components for hot-melt welding of the instrument cover assembly fixedly mounted on the bottom of the mounting frame, each of the plurality of welding components being equipped with a heat-insulating component for heat preservation during retraction of the welding components, a heat-conducting component for heat conduction of the welding components fixedly mounted on the bottom of each of the plurality of heat-insulating components, a cooling component for air cooling of the heat-conducting component fixedly mounted on one side of the bottom of each of the plurality of heat-insulating components, an air inlet pipe connected to the plurality of cooling components fixedly mounted on the mounting frame, and a tooling fixedly mounted on the workbench below the mounting frame.

[0006] Preferably, the welding assembly includes a fixing plate fixed to the bottom of the mounting frame, a fixing post fixedly provided at the bottom of the fixing plate, a welding head fixedly provided at the bottom of the fixing post, and a stroke groove provided at the bottom of the fixing post near the welding head.

[0007] Preferably, the heat insulation component includes a sliding ring slidably installed in the travel groove, a spring is installed between the sliding ring and the fixed plate, and a heat insulation sleeve is fixedly provided at the bottom of the sliding ring.

[0008] Preferably, the heat-conducting component includes a suspension fixed to the bottom of the insulation sleeve, and a heat-conducting cover is fixedly provided at the bottom of the suspension corresponding to the welding head.

[0009] Preferably, the cooling assembly includes a clamp fixed to the bottom of the insulation sleeve, a nozzle fixedly mounted on the clamp, and an air supply pipe connected to the air inlet pipe fixedly mounted on the top of the nozzle.

[0010] Preferably, the heat-conducting cover has a thin-walled structure and is in contact with the bottom of the welding head during welding.

[0011] Preferably, the nozzle is oriented towards the center of the heat-conducting cover.

[0012] Beneficial effects:

[0013] The welding device for this instrument cover assembly, by setting up welding components, insulation components, heat conduction components, and cooling components, allows the welding head to retract into the insulation sleeve after forming. The insulation sleeve effectively reduces heat loss from the welding head, enabling it to quickly reach the required temperature for the next welding operation, thus improving energy efficiency and extending the service life of the welding head. Meanwhile, the cooling airflow only cools the heat conduction cover and riveting post, without needing to cool the welding head, which increases the cooling speed of the riveting post, shortens the overall welding process time, and improves production efficiency. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the thermal insulation component of this utility model;

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

[0018] Figure 4 This is a schematic diagram of the structure of the heat-conducting cover of this utility model;

[0019] Figure 5 This is a schematic diagram showing the distribution of the welding components of this utility model;

[0020] Figure 6 This is a schematic diagram showing the state of the welding assembly of this utility model during welding;

[0021] Figure 7 This is a schematic diagram showing the state of the welding head and heat-conducting cover of this utility model during welding.

[0022] In the diagram: 1. Workbench; 2. Lifting frame; 3. Hydraulic cylinder; 4. Lifting plate; 5. Mounting frame; 6. Welding assembly; 61. Fixing plate; 62. Fixing column; 63. Welding head; 64. Stroke groove; 7. Insulation assembly; 71. Sliding ring; 72. Insulation sleeve; 73. Spring; 8. Heat conduction assembly; 81. Heat conduction cover; 82. Suspension; 9. Cooling assembly; 91. Clamp; 92. Nozzle; 93. Air supply pipe; 10. Air inlet pipe; 11. Tooling. Detailed Implementation

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 utility model based on the specific circumstances.

[0024] Additional aspects and advantages of this invention will be further set forth in the description which follows in conjunction with the accompanying drawings, and in part will be obvious from the description or may be learned by practice of the invention.

[0025] like Figures 1 to 7As shown, a welding device for an instrument cover assembly includes a workbench 1, a lifting frame 2 fixedly mounted on the top of the workbench 1, a hydraulic cylinder 3 fixedly mounted on the top of the lifting frame 2, a lifting plate 4 slidably mounted on the lifting frame 2 and fixedly connected to the output end of the hydraulic cylinder 3, a mounting frame 5 fixedly mounted on the bottom of the lifting plate 4, and multiple welding components 6 for hot-melt welding of the instrument cover assembly fixedly mounted on the bottom of the mounting frame 5. Each of the multiple welding components 6 is equipped with a heat-insulating component 7 for heat preservation during the retraction of the welding components 6, and the bottom of each of the multiple heat-insulating components 7 is fixedly... There is a heat-conducting component 8 for conducting heat from the welding component 6. Cooling components 9 for blowing air to cool the heat-conducting component 8 are fixedly installed on one side of the bottom of multiple insulation components 7. An air inlet pipe 10 connected to the multiple cooling components 9 is fixedly installed on the mounting frame 5. A fixture 11 is fixedly installed on the workbench 1 below the mounting frame 5. In use, the instrument cover assembly is placed inside the fixture 11. Then, the workbench 1, through the extension of the hydraulic cylinder 3 of the lifting frame 2 support frame, drives the mounting frame 5 downwards via the lifting plate 4, causing the mounting frame 5 to move downwards through the welding component 6 and the insulation component. 7 and the heat-conducting component 8 move downwards and are pressed down. As the pressing continues, the heat-conducting component 8 first contacts the riveting post of the instrument cover assembly. Then, the heat-conducting component 8 passes through the upper insulation component 7, keeping the insulation component 7 in place. At this time, the welding component 6 continues to move downwards until its bottom contacts the heat-conducting component 8, at which point the pressing stops. Then, the welding component 6 heats up and, through the heat-conducting component 8, heats the riveting post, melting it into shape. After melting, the mounting bracket 5 is lifted slightly, retracting the bottom of the welding component 6 into the insulation component 7. During this process, the insulation component... The positions of the heat-conducting component 7 and the heat-conducting component 8 remain unchanged, allowing the welding component 6 to retract into the heat-insulating component 7 for heat preservation. At this time, a high-pressure airflow is input into the air intake pipe 10 through an external air source, causing the airflow to be ejected through the cooling component 9 to cool the heat-conducting component 8 and the formed riveted column. There is no need to cool the welding component 6, allowing the formed riveted column to cool quickly and significantly reducing the heat loss of the welding component 6. After the formed riveted column has cooled, the lifting plate 4 is reset, and the instrument cover assembly is removed, completing one welding operation.

[0026] like Figures 1 to 3 As shown, the welding assembly 6 includes a fixing plate 61 fixed to the bottom of the mounting frame 5. A fixing post 62 is fixedly provided at the bottom of the fixing plate 61. A welding head 63 is fixedly provided at the bottom of the fixing post 62. A stroke groove 64 is provided at the bottom of the fixing post 62 near the welding head 63. The mounting frame 5 drives the welding head 63 to move downward through the fixing plate 61 and the fixing post 62 until the bottom of the welding head 63 is in contact with the heat-conducting assembly 8. The heat-conducting assembly 8 heat-melts and forms the riveting post.

[0027] like Figures 3 to 7As shown, the insulation component 7 includes a sliding ring 71 slidably installed in the travel groove 64. A spring 73 is installed between the sliding ring 71 and the fixed plate 61. An insulation sleeve 72 is fixedly installed at the bottom of the sliding ring 71. After hot melt molding, the mounting bracket 5 is lifted slightly, so that the fixed plate 61 drives the welding head 63 to move upward through the fixed column 62. During this process, the spring 73 is released and pushes the sliding ring 71 to slide along the travel groove 64, so that the positions of the insulation sleeve 72 and the heat conduction cover 81 remain unchanged, thereby allowing the welding head 63 to retract into the insulation sleeve 72 to insulate the welding head 63.

[0028] like Figures 2 to 5 As shown, the heat-conducting component 8 includes a suspension 82 fixed to the bottom of the insulation sleeve 72. A heat-conducting cover 81 is fixedly provided at the bottom of the suspension 82 at the position corresponding to the welding head 63. The heat-conducting cover 81 adopts a thin-walled structure and is in contact with the bottom of the welding head 63 during welding. After hot melt forming, the welding head 63 is retracted into the insulation sleeve 72 and separated from the heat-conducting cover 81. At this time, a high-pressure airflow is input to the air inlet pipe 10 through an external air source, so that the airflow flows through the air delivery pipe 93 and is sprayed out from the nozzle 92 to cool the heat-conducting cover 81 and the riveting column. Since the heat-conducting cover 81 is a thin-walled part, the formed riveting column can be cooled quickly. At the same time, the welding head 63 is retracted into the insulation sleeve 72, which can prevent the cooling airflow from blowing towards the welding head 63 and greatly reduce the heat loss of the welding head 63.

[0029] like Figures 2 to 5 As shown, the cooling assembly 9 includes a clamp 91 fixed to the bottom of the insulation sleeve 72, a nozzle 92 fixed on the clamp 91, and an air supply pipe 93 connected to the air inlet pipe 10 fixed on the top of the nozzle 92. The nozzle 92 faces the center of the heat conduction cover 81. After the welding head 63 is retracted into the insulation sleeve 72, a high-pressure airflow is input to the air inlet pipe 10 through an external air source, so that the airflow flows through the air supply pipe 93 and is sprayed out from the nozzle 92 to cool the heat conduction cover 81 and the riveting post.

[0030] The work process is as follows:

[0031] S1: As Figure 1 As shown, when in use, the instrument cover assembly is fixed inside the tooling 11;

[0032] S2: As Figures 1 to 3 As shown, the workbench 1 then extends through the lifting frame 2 and the hydraulic cylinder 3 of the support frame, and drives the mounting frame 5 to move downward through the lifting plate 4, so that the mounting frame 5 drives the heat insulation component 7 and the heat conduction component 8 to move downward through the welding component 6 to press down;

[0033] S3: As Figure 2 , Figure 6 and Figure 7As shown, as the downward pressure continues, the heat-conducting cover 81 first contacts the riveting post of the instrument cover assembly. Then, the heat-conducting cover 81 will push the insulation sleeve 72 up through the suspension 82, keeping the positions of the insulation sleeve 72 and the sliding ring 71 unchanged. At this time, the sliding ring 71 will slide along the stroke groove 64 and compress the spring 73 under the support of the fixed plate 61, so that the fixed post 62 can drive the welding head 63 to continue to move downward, move out of the insulation sleeve 72, until the welding head 63 fits against the heat-conducting cover 81, and the downward pressure stops. The welding head 63 heats the riveting post through the heat-conducting cover 81 and heat-melts it into shape.

[0034] S4: As Figure 3 and Figure 7 As shown, after hot melt molding, the mounting bracket 5 is lifted slightly, so that the fixing plate 61 drives the welding head 63 to retract upward into the insulation sleeve 72 through the fixing column 62. During this process, the spring 73 is released to push the sliding ring 71 to slide along the stroke groove 64, so that the positions of the insulation sleeve 72 and the heat conduction cover 81 remain unchanged, thereby allowing the welding head 63 to retract smoothly into the insulation sleeve 72 for heat preservation.

[0035] S5: As Figures 2 to 5 As shown, after the welding head 63 retracts into the insulation sleeve 72, a high-pressure airflow is input into the air inlet pipe 10 through an external air source, so that the airflow flows through the air delivery pipe 93 and is sprayed out from the nozzle 92 to cool the heat conduction cover 81 and the riveting column. The heat conduction cover 81 is a thin-walled part, which allows the formed riveting column to cool down quickly. At the same time, the welding head 63 retracts into the insulation sleeve 72, which can greatly reduce the heat loss of the welding head 63.

[0036] S6: As Figure 1 As shown, after the formed riveted column has cooled, the mounting bracket 5 is reset upwards, and the instrument cover assembly is removed to complete one welding operation.

[0037] The hydraulic cylinder 3, welding head 63, and tooling 11 in this application are known technologies in this field, therefore their specific structures and working principles are not described in detail.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A welding device for an instrument cover assembly, characterized in that: The system includes a workbench (1), a lifting frame (2) fixedly mounted on the top of the workbench (1), a hydraulic cylinder (3) fixedly mounted on the top of the lifting frame (2), a lifting plate (4) slidably mounted on the lifting frame (2) and fixedly connected to the output end of the hydraulic cylinder (3), a mounting frame (5) fixedly mounted on the bottom of the lifting plate (4), and a plurality of welding components (6) for hot-melt welding of the instrument cover assembly fixedly mounted on the bottom of the mounting frame (5), each of the plurality of welding components (6) being equipped with a welding device for the welding assembly. The component (6) has a heat-insulating component (7) for retracting and heat preservation. The bottom of each of the heat-insulating components (7) is fixedly provided with a heat-conducting component (8) for conducting heat of the welding component (6). The bottom side of each of the heat-insulating components (7) is fixedly provided with a cooling component (9) for blowing air to cool the heat-conducting component (8). An air inlet pipe (10) communicating with the multiple cooling components (9) is fixedly provided on the mounting frame (5). A tooling (11) is fixedly provided on the workbench (1) located below the mounting frame (5).

2. The welding device for an instrument cover assembly according to claim 1, characterized in that: The welding assembly (6) includes a fixing plate (61) fixed to the bottom of the mounting bracket (5). A fixing post (62) is fixedly provided at the bottom of the fixing plate (61). A welding head (63) is fixedly provided at the bottom of the fixing post (62). A stroke groove (64) is provided at the bottom of the fixing post (62) near the welding head (63).

3. The welding device for an instrument cover assembly according to claim 2, characterized in that: The heat insulation component (7) includes a sliding ring (71) that is slidably installed in the travel groove (64), a spring (73) is installed between the sliding ring (71) and the fixed plate (61), and a heat insulation sleeve (72) is fixedly provided at the bottom of the sliding ring (71).

4. The welding device for an instrument cover assembly according to claim 3, characterized in that: The heat-conducting component (8) includes a suspension (82) fixed to the bottom of the insulation sleeve (72), and a heat-conducting cover (81) is fixedly provided at the bottom of the suspension (82) at the position corresponding to the welding head (63).

5. The welding device for an instrument cover assembly according to claim 4, characterized in that: The cooling assembly (9) includes a clamp (91) fixed to the bottom of the insulation sleeve (72), a nozzle (92) is fixedly provided on the clamp (91), and an air supply pipe (93) connected to the air inlet pipe (10) is fixedly provided on the top of the nozzle (92).

6. The welding device for an instrument cover assembly according to claim 4, characterized in that: The heat-conducting cover (81) has a thin-walled structure and fits against the bottom of the welding head (63) during welding.

7. The welding device for an instrument cover assembly according to claim 5, characterized in that: The nozzle (92) is oriented toward the center of the heat-conducting cover (81).

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