Vibration friction welding jig for automatic intake manifold

Abstract

The utility model relates to the technical field of automobile part manufacturing, in particular to an automatic intake manifold vibration friction welding jig which comprises a lower jig device, an upper jig device, a lower main accessory and an upper main accessory, the four corners of the upper end of the lower jig device are fixedly connected with bases, the middles of the upper ends of the four bases are fixedly connected with guide rods, and the guide rods are fixedly connected with the lower main accessory. A bottom plate is fixedly connected to the middle of the upper end of the lower jig plate, supporting seats are fixedly connected to the left portion, the rear portion and the right portion of the upper end of the bottom plate, and the four sliding blocks are slidably installed at the upper ends of the supporting seats one by one. According to the automatic vibration friction welding jig for the intake manifold, the sliding block is driven by the air cylinder to achieve automatic positioning and clamping of the jig petals, vertical projections of key connecting points of the upper jig and the lower jig are accurately combined, and the problems that a traditional jig is deviated in positioning, much in manual intervention and low in automation degree are solved; the production efficiency is obviously improved, the product sealing quality is guaranteed, and the working intensity of workers is relieved.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts manufacturing technology, and in particular to an automatic intake manifold vibration friction welding fixture. Background Technology

[0002] In the automotive manufacturing industry, the intake manifold, as a key component of the engine intake system, directly affects engine performance due to its sealing and structural integrity. For the XTJ-275 model intake manifold, due to the limitations of injection molding technology, it adopts a two-piece loose part design, which needs to be welded into a complete cavity using vibration friction welding technology. Traditional vibration friction welding fixtures have the following technical problems when processing such loose parts:

[0003] 1. Insufficient positioning accuracy: The intake manifold has a complex structure with many curved surfaces. Traditional fixtures cannot accurately fit the contour of the parts, resulting in uneven welding gaps and affecting sealing performance.

[0004] 2. High degree of manual intervention: When picking up and placing parts, interference with the fixture is easy to occur, requiring manual adjustment of the fixture position or clamping force. The operation is cumbersome and inefficient, making it difficult to meet the needs of mass production. Furthermore, the stability of the fixture during the welding process depends on manual calibration, resulting in poor product quality consistency and difficulty in improving the pass rate of sealing performance testing. Therefore, we have launched an automatic intake manifold vibration friction welding fixture. Utility Model Content

[0005] The main objective of this invention is to provide an automatic intake manifold vibration friction welding fixture, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] An automatic intake manifold vibration friction welding fixture includes a lower fixture device, an upper fixture device, a lower main component, and an upper main component. The lower fixture device has bases fixedly connected to its four upper corners. Guide rods are fixedly connected to the upper middle parts of the four bases. A base plate is fixedly connected to the upper middle part of the lower fixture plate. Support seats are fixedly connected to the upper left, upper rear, and upper right parts of the base plate, with two support seats located at the upper rear. Cylinder 3, Cylinder 2, Cylinder 1, and Cylinder 4 are fixedly mounted on the outer sides of the four support seats. Slider blocks are fixedly connected to the output ends of Cylinder 3, Cylinder 2, Cylinder 1, and Cylinder 4, and each of the four sliders is slidably mounted to the upper end of a support seat.

[0008] Preferably, the lower main component includes lower jig flaps numbered 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10 connected clockwise. The lower jigs are arranged in a front lower jig group, the lower jig number eight is the left lower jig group, and the lower jig number nine and the lower jig number ten are the rear lower jig group. The lower jig number one, lower jig number two, lower jig number three, lower jig number four, lower jig number five, lower jig number six, lower jig number seven, lower jig number eight, lower jig number nine and lower jig number ten are all distributed clockwise at the top of the base plate.

[0009] Preferably, the upper fixture device includes an upper fixture plate, and connecting shafts are fixedly connected to the four corners of the lower end of the upper fixture plate. The upper fixture plate is located directly above the lower fixture plate.

[0010] Preferably, the upper main component includes upper fixture flaps No. 1, No. 2, No. 7, No. 6, No. 5, No. 4, and No. 3 connected clockwise in sequence, and the upper fixture flaps No. 1, No. 2, No. 7, No. 6, No. 5, No. 4, and No. 3 are all distributed clockwise at the lower end of the upper fixture plate.

[0011] Preferably, the connection point between the second upper fixture flap and the first upper fixture flap is located directly above the first, second, third, fourth, fifth, sixth, seventh, and eighth lower fixture flaps in the vertical projection.

[0012] Preferably, the connection point of the No. 7 upper fixture flap, the No. 6 upper fixture flap, the No. 5 upper fixture flap, the No. 4 upper fixture flap and the No. 3 upper fixture flap is located directly above the No. 9 lower fixture flap and the No. 10 lower fixture flap in the vertical projection.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. In this utility model, the lower main component is grouped into front lower fixture segments, left lower fixture segments, and rear lower fixture segments to fit and position the complex curved surfaces of the front, left, and rear ends of the workpiece, respectively, covering the full contour structure of the intake manifold. This avoids the local positioning deviation of traditional fixed fixtures. The connection point of the fixture segment of the upper main component and the connection point of the first upper fixture segment are completely coincident with the corresponding area of ​​the lower fixture through vertical projection, ensuring that the upper and lower fixtures are not offset during welding and that the welding gap is uniformly controlled within the design range, which greatly improves the pass rate of the sealing performance test of the finished product.

[0015] 2. In this utility model, cylinders one to four are installed on the outside of the support base on the base plate, driving the output end slider to slide along the support base, automatically adjusting the position of the fixture petals, solving the structural interference problem during the picking and placing of traditional fixtures, eliminating the need for manual calibration. The upper fixture device achieves precise vertical lifting and alignment through the coaxial design of the connecting shaft and the guide rod. In conjunction with the cylinder slider of the lower fixture, a fully automated control process of "positioning-clamping-welding-resetting" is formed, eliminating the need for manual intervention in intermediate links. This can effectively improve production efficiency while ensuring product quality, reducing the workload of employees, and saving time and effort. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the working structure of the upper and lower fixture devices of an automatic intake manifold vibration friction welding fixture in the pressing state.

[0017] Figure 2 This is a top-right view of the structure of an automatic intake manifold vibration friction welding fixture according to this utility model.

[0018] Figure 3 This is a schematic diagram of the combined structure of the lower fixture device and the lower main component of an automatic intake manifold vibration friction welding fixture according to this utility model.

[0019] Figure 4 This is a schematic diagram of the combined connection structure of the upper fixture device and the upper main component of an automatic intake manifold vibration friction welding fixture according to this utility model.

[0020] In the diagram: 1. Lower jig device; 2. Upper jig device; 3. Lower main component; 4. Upper main component; 11. Lower jig plate; 12. Base; 13. Guide rod; 14. Base plate; 15. Support seat; 16. Cylinder 1; 17. Cylinder 2; 18. Cylinder 3; 19. Cylinder 4; 20. Slider; 31. Lower jig flap 1; 32. Lower jig flap 2; 33. Lower jig flap 3; 34. Lower jig flap 4; 35. 1. Lower jig flap 5; 36. Lower jig flap 6; 37. Lower jig flap 7; 38. Lower jig flap 8; 39. Lower jig flap 9; 310. Lower jig flap 10; 21. Upper jig plate; 22. Connecting shaft; 41. Upper jig flap 1; 42. Upper jig flap 2; 43. Upper jig flap 3; 44. Upper jig flap 4; 45. Upper jig flap 5; 46. Upper jig flap 6; 47. Upper jig flap 7. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," 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 this utility model and 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 this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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] Please see Figure 1-4 This utility model provides a technical solution:

[0025] An automatic intake manifold vibration friction welding fixture includes a lower fixture device 1, an upper fixture device 2, a lower main component 3, and an upper main component 4. Bases 12 are fixedly connected to the four corners of the upper end of the lower fixture device 1. Guide rods 13 are fixedly connected to the middle of the upper ends of the four bases 12. A base plate 14 is fixedly connected to the middle of the upper end of the lower fixture plate 11. Support seats 15 are fixedly connected to the upper left, upper rear, and upper right parts of the base plate 14. Two support seats 15 are provided at the upper rear part. Cylinder 3 18, Cylinder 2 17, Cylinder 1 16, and Cylinder 4 19 are fixedly installed on the outer sides of the four support seats 15, respectively. Slider 20s are fixedly connected to the output ends of Cylinder 3 18, Cylinder 2 17, Cylinder 1 16, and Cylinder 4 19, and the four sliders 20 are slidably installed on the upper ends of the support seats 15, respectively.

[0026] In this embodiment, the lower main component 3 includes lower jig flaps 31, 32, 33, 34, 35, 36, 37, 38, 39, and 310 connected clockwise. Lower jig flaps 31, 32, 33, 34, 35, 36, 37, 38, 39, and 310 form the front lower jig flap section. Group 8, lower jig petal 38 is the left lower jig petal group; lower jig petal 9, lower jig petal 39 and lower jig petal 310 are the rear lower jig petal group; lower jig petal 1, lower jig petal 31, lower jig petal 2, lower jig petal 32, lower jig petal 33, lower jig petal 4, lower jig petal 34, lower jig petal 5, lower jig petal 35, lower jig petal 6, lower jig petal 36, lower jig petal 7, lower jig petal 37, lower jig petal 8, lower jig petal 38, lower jig petal 9, and lower jig petal 310 are all distributed clockwise on the upper end of the base plate 14. The upper jig device 2 includes an upper jig plate 21, and the four corners of the lower end of the upper jig plate 21 are fixedly connected. There is a connecting shaft 22. The upper fixture plate 21 is located directly above the lower fixture plate 11. The upper main component 4 includes upper fixture segments 41, 42, 47, 46, 45, 44, and 43 connected clockwise. Upper fixture segments 41, 42, 47, 46, 45, 44, and 43 are all distributed clockwise at the lower end of the upper fixture plate 21. The connection point between upper fixture lobe 42 of No. 2 and upper fixture lobe 41 of No. 1 is located directly above lower fixture lobe 31 of No. 1, lower fixture lobe 32 of No. 2, lower fixture lobe 33 of No. 3, lower fixture lobe 34 of No. 4, lower fixture lobe 35 of No. 5, lower fixture lobe 36 of No. 6, lower fixture lobe 37 of No. 7 and lower fixture lobe 38 of No. 8 in vertical projection. The connection point between upper fixture lobe 47 of No. 7, upper fixture lobe 46 of No. 6, upper fixture lobe 45 of No. 5, upper fixture lobe 44 of No. 4 and upper fixture lobe 43 of No. 3 is located directly above lower fixture lobe 39 of No. 9 and lower fixture lobe 310 of No. 10 in vertical projection.

[0027] Through the above scheme: the two loose parts of the XTJ-275 intake manifold to be welded are first placed on the jig flaps of the lower main component 3. The lower main component 3 includes lower jig flaps 31, 32, 33, 34, 35, 36, 37, 38, 39, and 310, which are distributed clockwise on the upper end of the base plate 14. Among them: front end positioning: the front lower jig flaps are grouped into lower jig flaps 31, 32, 33, 34, 35, 36, and 37, which are arranged along the front edge of the base plate 14. As the clockwise direction extends, it supports the front and side structures of the workpiece. Left-side positioning: Lower jig segment 38 (number eight) serves as the lower left jig segment group, located on the upper left side of the base plate 14, fitting the left side of the workpiece. Rear-side positioning: Lower jig segments 39 (number nine) and 310 (number ten) are located on the upper rear side of the base plate 14, connected to fix the rear end of the workpiece. The support seats 15 on the upper left, rear, and right sides of the base plate 14 have two outer sides on which cylinders 16 (number one), 17 (number two), 18 (number three), and 19 (number four) are respectively mounted. Their output sliders 20 slide along the support seats 15, driving the corresponding jig segments to adjust their positions or clamp the workpiece, eliminating structural interference during manual handling. Subsequently, the upper jig... The upper fixture plate 21 of fixture 2 descends vertically along the guide rods 13 on the four corner bases 12 of the lower fixture plate 11 via the four corner connecting shafts 22. This causes the first upper fixture segment 41, the second upper fixture segment 42, the seventh upper fixture segment 47, etc., which are clockwise distributed at the lower end of the upper fixture plate 21, to align with the fixture segments of the lower main fixture 3. The key alignment point is precisely positioned by vertical projection. The connection point between the second upper fixture segment 42 and the first upper fixture segment 41 is vertically projected onto the lower fixture segment group of ... On the left welding area, the connection points of upper jig flaps 47 (7), 46 (6), 45 (5), 44 (44), and 43 (3) are vertically projected onto the lower jig flap group 39 (9) and 310 (10), corresponding to the welding area at the rear end of the workpiece. After the upper and lower jigs are precisely aligned, the vibration friction welding equipment drives the jigs to vibrate at high frequency. The contact surfaces of the workpieces generate heat through friction and melt. After pressure cooling, a sealed weld is formed. After welding is completed, the upper jig plate 21 is reset and raised along the guide rod 13. Cylinders 16 (16), 27 (17), 38 (18), and 49 (19) drive the slider 20 back to its initial position, releasing the clamping force. The operator or robotic arm can then remove the complete cavity from the lower jig flap.

[0028] It should be noted that this utility model is an automatic intake manifold vibration friction welding fixture. First, two loose parts of the XTJ-275 intake manifold are placed on the fixture flaps of the lower main component 3. The lower fixture flaps are grouped into four groups: lower fixture flap 31 (front), lower fixture flap 32 (left), lower fixture flap 33 (left), lower fixture flap 34 (right), lower fixture flap 35 (right), lower fixture flap 36 (left), lower fixture flap 37 (right), lower fixture flap 38 (left), lower fixture flap 39 (right), and lower fixture flap 30 (right). The 310 segment positions the workpiece at the front, left, and rear ends. Subsequently, cylinders 16, 17, 18, and 19 on the outer side of the left, rear, and right support seats 15 at the upper end of the base plate 14 drive the output end slider 20 to slide along the support seat 15, adjusting the position of the jig segment or the clamping force, eliminating workpiece pick-up and drop interference, and achieving automated positioning and clamping. Next, the upper jig plate 21 of the upper jig device 2 descends vertically along the guide rods 13 on the four corner bases 12 of the lower jig plate 11 via the four corner connecting shafts 22, causing the upper main component to... The four upper fixture segments 41, 42, and 43, distributed clockwise at the lower end of the upper fixture plate 21, align with the corresponding fixture segments of the lower main component 3. The connection points of the fixture segments of the upper main component 4 are located directly above the key positions of the corresponding fixture segments of the lower main component 3 in the vertical projection. For example, the connection point between the upper fixture segment 42 and the upper fixture segment 41 is projected directly above the front lower fixture segment group and the left lower fixture segment. The upper fixture segments 47, 46, 45, and 46 are also located in the vertical projection. The connection point of 44 and the upper fixture segment 43 is projected directly above the lower fixture segment group to ensure precise alignment of the upper and lower fixtures. After alignment, the vibration friction welding equipment drives the fixture to vibrate at high frequency, causing the contact surface of the workpiece to generate heat and melt due to friction. After pressure cooling, a sealed weld is formed. After welding is completed, the upper fixture device 2 is reset and raised, and the cylinder drives the slider 20 to retract. The operator or robotic arm takes out the welded complete cavity. The whole process is automated through the linkage of the cylinder and the slider 20, which improves efficiency and ensures the sealing performance of the product.

[0029] 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic intake manifold vibration friction welding fixture, comprising a lower fixture device (1), an upper fixture device (2), a lower main component (3), and an upper main component (4), characterized in that: The lower fixture device (1) is fixedly connected to four bases (12) at the upper corners. Guide rods (13) are fixedly connected to the upper middle of the four bases (12). The lower fixture plate (11) is fixedly connected to the upper middle of the bottom plate (14). Support seats (15) are fixedly connected to the upper left, upper rear and upper right of the bottom plate (14). Two support seats (15) are provided at the upper rear. Cylinder three (18), cylinder two (17), cylinder one (16) and cylinder four (19) are fixedly installed on the outer side of the four support seats (15). Slider (20) is fixedly connected to the output end of cylinder three (18), the output end of cylinder two (17), the output end of cylinder one (16) and the output end of cylinder four (19). The four sliders (20) are slidably installed on the upper end of the support seats (15) one by one.

2. The automatic intake manifold vibration friction welding fixture according to claim 1, characterized in that: The lower main component (3) includes lower fixture flaps 1 (31), 2 (32), 3 (33), 4 (34), 5 (35), 6 (36), 7 (37), 8 (38), 9 (39), and 10 (310) connected clockwise. The petals (37) are arranged in sequence to form the front lower fixture petal group, the eighth lower fixture petal (38) is the left lower fixture petal group, the ninth lower fixture petal (39) and the tenth lower fixture petal (310) are the rear lower fixture petal group, and the first lower fixture petal (31), the second lower fixture petal (32), the third lower fixture petal (33), the fourth lower fixture petal (34), the fifth lower fixture petal (35), the sixth lower fixture petal (36), the seventh lower fixture petal (37), the eighth lower fixture petal (38), the ninth lower fixture petal (39) and the tenth lower fixture petal (310) are all distributed clockwise at the upper end of the base plate (14).

3. The automatic intake manifold vibration friction welding fixture according to claim 1, characterized in that: The upper fixture device (2) includes an upper fixture plate (21), and connecting shafts (22) are fixedly connected to the four corners of the lower end of the upper fixture plate (21). The upper fixture plate (21) is located directly above the lower fixture plate (11).

4. The automatic intake manifold vibration friction welding fixture according to claim 1, characterized in that: The upper main component (4) includes upper fixture flaps No. 1 (41), No. 2 (42), No. 7 (47), No. 6 (46), No. 5 (45), No. 4 (44), and No. 3 (43) connected clockwise in sequence. The upper fixture flaps No. 1 (41), No. 2 (42), No. 7 (47), No. 6 (46), No. 5 (45), No. 4 (44), and No. 3 (43) are all distributed clockwise at the lower end of the upper fixture plate (21).

5. The automatic intake manifold vibration friction welding fixture according to claim 4, characterized in that: The connection point between the second upper fixture flap (42) and the first upper fixture flap (41) is located directly above the first lower fixture flap (31), the second lower fixture flap (32), the third lower fixture flap (33), the fourth lower fixture flap (34), the fifth lower fixture flap (35), the sixth lower fixture flap (36), the seventh lower fixture flap (37), and the eighth lower fixture flap (38) in the vertical projection.

6. The automatic intake manifold vibration friction welding fixture according to claim 4, characterized in that: The connection point of the upper fixture flaps No. 7 (47), No. 6 (46), No. 5 (45), No. 4 (44), and No. 3 (43) is located directly above the lower fixture flaps No. 9 (39) and No. 10 (310) in the vertical projection.

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