Intake manifold welding fixing device

Abstract

The utility model provides an intake manifold welding fixing device which comprises a second placing seat and a first placing seat, a welding table top matched with an intake manifold in shape is arranged at the top of the second placing seat, and a first placing groove matched with the lower half portion of the intake manifold is formed in the surface of the welding table top. A welding cavity corresponding to the welding table top in shape is formed in the bottom of the first containing base, a second containing groove matched with the upper half portion of the intake manifold is formed in the welding cavity, the welding cavity is formed in the welding table top, and negative pressure cavities are formed in the sides, away from each other, of the interior of the second containing base and the interior of the first containing base correspondingly. One side of the negative pressure cavity is connected with a negative pressure device through a pipeline, and a plurality of adsorption holes communicating with the first containing groove and the second containing base are formed in the inner surface of the negative pressure cavity. When the welding fixture is used, the positions of the upper half part and the lower half part of the intake manifold cannot deviate in the welding process, so that accurate positioning can be realized in each welding process.

Description

Technical Field

[0001] This utility model relates to the field of intake manifold welding technology, specifically to an intake manifold welding and fixing device. Background Technology

[0002] The intake manifold is the passageway that connects to the engine cylinders to supply air into them. Nowadays, in order to reduce engine weight and lower production costs, intake manifolds made of plastic are widely used. However, the production of plastic intake manifolds requires first manufacturing two parts: an upper intake manifold and a lower intake manifold (equivalent to the upper half 14 and the lower half 15 of the intake manifold in this application). Existing automotive engine manifolds are irregularly shaped parts, and existing welding molds cannot effectively fix the manifold, making it easy for positional displacement to occur during welding.

[0003] For example, the intake manifold vibration welding mold proposed in document number "CN102555107A" involves first placing the lower intake manifold 2 on the lower mold core 9, then placing the upper intake manifold 1 on the lower intake manifold 2, and finally controlling the welding machine to lower the guide sleeve 14 to lock onto the upper intake manifold 1 for welding. However, when the upper intake manifold 1 is placed on the lower intake manifold 2, it lacks a positioning and guiding mechanism. Since the manifolds are irregularly shaped, the upper intake manifold 1 is prone to misalignment, leading to inaccurate alignment between the upper intake manifold 1 and the guide sleeve, and easily resulting in defective welds. Therefore, we propose an intake manifold welding fixing device. Utility Model Content

[0004] This invention provides an intake manifold welding and fixing device, which has the advantage of ensuring accurate positioning for each welding operation, thus solving the problems mentioned in the background art.

[0005] The technical solution of this utility model is implemented as follows: an intake manifold welding and fixing device is designed, including a second placement seat and a first placement seat. The top of the second placement seat is provided with a welding platform whose shape matches the shape of the intake manifold. The surface of the welding platform is provided with a first placement groove that matches the lower half of the intake manifold. The bottom of the first placement seat is provided with a welding cavity whose shape corresponds to the welding platform. The welding cavity is provided with a second placement groove that matches the upper half of the intake manifold. The welding cavity is placed on the welding platform. Negative pressure cavities are provided on the sides of the second and first placement seats that are far apart from each other. One side of the negative pressure cavity is connected to a negative pressure device through a pipe. Several adsorption holes that communicate with the first placement groove and the second placement seat are provided on the inner surface of the negative pressure cavity.

[0006] Preferably, the ends of the second placement seat and the first placement seat that are far apart from each other are both mounted on the mounting base.

[0007] Preferably, the middle part of the mounting base is connected to the negative pressure chamber, and a sealing plate for sealing the negative pressure chamber is detachably installed in the middle part of the mounting base.

[0008] Preferably, a guide seat is provided at the edge of the first placement seat, and a guide groove corresponding to the guide seat is provided at the top edge of the second placement seat. When the second placement seat and the first placement seat approach each other, the guide seat is placed in the guide groove.

[0009] Preferably, when the second placement seat and the first placement seat are stacked, the upper half of the intake manifold and the lower half of the intake manifold are spliced ​​together, and a gap is provided between the second placement seat and the first placement seat.

[0010] Preferably, the first and second placement seats are detachably provided with pipe joints on their sides, and the pipe joints are connected to the negative pressure device through an electromagnetic reversing valve.

[0011] Compared with existing technologies, this invention, in its use, first places the lower half of the intake manifold in the first placement groove and controls the negative pressure device to adsorb it. Then, it places the upper half of the intake manifold in the second placement groove and controls the negative pressure device to adsorb it again, thus fixing the upper and lower halves of the intake manifold. Then, the machine tool can be controlled to move the first placement seat onto the second placement seat for welding. During the welding process, the positions of the upper and lower halves of the intake manifold will not shift, ensuring accurate positioning for each weld. Attached Figure Description

[0012] 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.

[0013] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 .

[0014] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 .

[0015] Figure 3 This is a schematic diagram of the bottom structure of this utility model.

[0016] Figure 4 This is a schematic diagram of the structure of the first and second placement seats combined according to this utility model.

[0017] Figure 5 This is a schematic diagram of the intake manifold of this utility model.

[0018] Figure 6 This is a schematic diagram of the structure of the intake manifold after separation according to this utility model.

[0019] In the diagram: 1. Mounting base; 2. First placement slot; 3. Welding platform; 4. Guide slot; 5. Welding cavity; 6. First placement base; 7. Negative pressure chamber; 8. Adsorption hole; 9. Guide seat; 10. Sealing plate; 11. Second placement base; 12. Pipe connector; 13. Second placement slot; 14. Upper half of intake manifold; 15. Lower half of intake manifold. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to its embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] Reference Figures 1 to 4 This utility model provides a technical solution: an intake manifold welding and fixing device, including a second placement seat 11 and a first placement seat 6. The top of the second placement seat 11 is provided with a welding platform 3, the shape of which matches the shape of the intake manifold. The bottom of the first placement seat 6 is provided with a welding cavity 5, the shape of which corresponds to the welding platform 3. Figure 3 As shown, the welding cavity 5 is placed on the welding table 3.

[0022] It should be noted that, as Figure 5 and Figure 6 As shown, the intake manifold consists of two parts before welding: the upper part 14 and the lower part 15. Before the intake manifold is formed, the two parts, the upper part 14 and the lower part 15, need to be welded and fixed. The welding method is vibration welding or ultrasonic welding. Because the two parts need to be in close contact during welding, the two parts must be stably fixed.

[0023] like Figure 1 and Figure 2 As shown, a first placement groove 2 matching the lower half 15 of the intake manifold is provided on the surface of the welding table 3. In use, the lower half 15 of the intake manifold can be fixed by placing it in the first placement groove 2. The welding cavity 5 is provided with a second placement groove 13 matching the upper half 14 of the intake manifold. In use, the upper half 14 of the intake manifold can be fixed by placing it in the second placement groove 13.

[0024] When the upper half 14 and the lower half 15 of the intake manifold are placed in the placement slots respectively, but the opening of the welding cavity 5 is facing downwards, the upper half 14 of the intake manifold is very likely to fall off. Therefore, in order to prevent the upper half 14 and the lower half 15 of the intake manifold from being unstable, a negative pressure chamber 7 is provided on the side of the second placement seat 11 and the first placement seat 6 that are far apart from each other. One side of the negative pressure chamber 7 is connected to the negative pressure device through a pipe.

[0025] Several adsorption holes 8 are provided on the inner surface of the negative pressure chamber 7, which are respectively connected to the first placement groove 2 and the second placement seat 11. When the negative pressure device is working, a negative pressure is formed in the negative pressure chamber 7, which causes each adsorption hole 8 to generate suction, so that the upper half of the intake manifold 14 and the lower half of the intake manifold 15 can be fixed in the placement groove respectively.

[0026] Based on the above embodiments, specifically, the ends of the second placement seat 11 and the first placement seat 6 that are far apart from each other are both installed on the mounting seat 1. The edge of the mounting seat 1 is provided with holes, and bolts are provided in the holes. When installing the fixing device, the mounting seat 1 can be connected to the welding machine tool. The second placement seat 11 is a stationary mold, while the first placement seat 6 is a moving mold. Therefore, in actual operation, the first placement seat 6 moves up and down linearly with the machine tool.

[0027] During welding, the lower half of the intake manifold 15 is first placed in the first placement groove 2, and the negative pressure device is controlled to adsorb it. Then, the upper half of the intake manifold 14 is placed in the second placement groove 13, and the negative pressure device is controlled to adsorb it. At this time, both the upper half of the intake manifold 14 and the lower half of the intake manifold 15 can be fixed. Then, the machine tool can drive the first placement seat 6 to be placed on the second placement seat 11 for welding. However, it should be noted that when the second placement seat 11 and the first placement seat 6 are stacked, the upper half of the intake manifold 14 and the lower half of the intake manifold 15 are spliced ​​together, and there is a gap between the second placement seat 11 and the first placement seat 6. This gap is used for welding.

[0028] Furthermore, the middle part of the mounting base 1 is connected to the negative pressure chamber 7, and a sealing plate 10 that seals the negative pressure chamber 7 is detachably installed in the middle part of the mounting base 1. After long-term use, some dust may accumulate in the negative pressure chamber 7, so the sealing plate 10 can be opened for cleaning. The edge of the sealing plate 10 is fastened to the edge of the negative pressure chamber 7 by bolts, which facilitates disassembly and installation.

[0029] Furthermore, a guide seat 9 is provided at the edge of the first placement seat 6, and a guide groove 4 corresponding to the guide seat 9 is provided at the top edge of the second placement seat 11. When the second placement seat 11 and the first placement seat 6 approach each other, the guide seat 9 is placed in the guide groove 4. The guide seat 9 and the guide groove 4 provided can make the movement between the second placement seat 11 and the first placement seat 6 more stable.

[0030] Based on the above embodiments, a pipe connector 12 is detachably provided on the side of the first placement seat 6 and the second placement seat 11. In fact, at least one threaded hole is provided on the side of the first placement seat 6 and the second placement seat 11, and the pipe connector 12 is threaded into the threaded hole. Specifically, the pipe connector 12 is connected to the negative pressure device through an electromagnetic reversing valve. The negative pressure device is a negative pressure pump, which reverses back and forth through the electromagnetic reversing valve, so that negative pressure is generated in the negative pressure chamber 7 or air is injected into it.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An intake manifold welding and fixing device, comprising a second placement seat (11) and a first placement seat (6), characterized in that, The second placement seat (11) has a welding platform (3) at the top with a shape matching the shape of the intake manifold, and the surface of the welding platform (3) has a first placement groove (2) matching the lower half of the intake manifold (15). The bottom of the first placement seat (6) is provided with a welding cavity (5) whose shape corresponds to the welding table (3), and the welding cavity (5) is provided with a second placement groove (13) that matches the upper half of the intake manifold (14); The welding cavity (5) is placed on the welding table (3), and negative pressure cavities (7) are provided on the opposite sides of the second placement seat (11) and the first placement seat (6). One side of the negative pressure cavity (7) is connected to the negative pressure device through a pipe. Several adsorption holes (8) are provided on the inner surface of the negative pressure chamber (7), which are respectively connected to the first placement groove (2) and the second placement seat (11).

2. The intake manifold welding and fixing device as described in claim 1, characterized in that, The ends of the second placement seat (11) and the first placement seat (6) that are far apart from each other are both mounted on the mounting seat (1).

3. The intake manifold welding and fixing device as described in claim 2, characterized in that, The middle part of the mounting base (1) is connected to the negative pressure chamber (7), and a sealing plate (10) that seals the negative pressure chamber (7) is detachably installed in the middle part of the mounting base (1).

4. The intake manifold welding and fixing device as described in claim 3, characterized in that, A guide seat (9) is provided at the edge of the first placement seat (6); The second placement seat (11) has a guide groove (4) corresponding to the guide seat (9) at its top edge. When the second placement seat (11) and the first placement seat (6) approach each other, the guide seat (9) is placed in the guide groove (4).

5. The intake manifold welding and fixing device as described in claim 1, characterized in that, When the second placement seat (11) and the first placement seat (6) are stacked, the upper half (14) and the lower half (15) of the intake manifold are spliced ​​together, and there is a gap between the second placement seat (11) and the first placement seat (6).

6. The intake manifold welding and fixing device as described in claim 1 or 5, characterized in that, Pipe joints (12) are detachably provided on the sides of the first placement seat (6) and the second placement seat (11). The pipe joints (12) are connected to the negative pressure device through an electromagnetic reversing valve.

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