Water tank pin press-fitting structure of automobile warm water heating tank

Abstract

The utility model relates to the technical field of automobile part production equipment, and discloses a water tank pin press-fitting structure of an automobile warm water heating tank, which comprises a bottom plate, a plurality of supporting seats arranged on the bottom plate, a first pressing mechanism, a second pressing mechanism and a press-fitting mechanism, the upper surfaces of the plurality of supporting seats are used for supporting the lower surface of the water tank; the first pressing mechanism is used for pressing the upper surface of the water tank; the supporting seat is provided with a placing through hole which is used for placing a pin and vertically extends, and the press-fitting mechanism is used for press-fitting the pin in the placing through hole into a mounting hole of a water tank; the pressing end of the second pressing mechanism is used for pressing the upper surface of the water tank, and the pressing end of the second pressing mechanism is used for covering a mounting hole of the water tank from the upper portion. Through the arrangement, the pin can be pressed into the mounting hole of the water tank, so that the subsequent accurate assembly of the water tank and the water tank cover can be ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive parts production equipment, and in particular to a water tank pin press-fit structure for an automotive hot water heater. Background Technology

[0002] A car water heater typically consists of a water tank, a water tank cap, a heating element, inlet and outlet ports on the water tank, and a temperature sensor. Its main functions include preheating the engine, providing warm air to the car interior, or assisting other components in heating.

[0003] Both the water tank and the water tank cap have an open inner cavity structure at the bottom. To ensure precise assembly and positioning, they are typically assembled using pins during the production and assembly process. By pre-determining the installation position with pins, the water tank cap can be accurately installed onto the water tank, avoiding damage to internal components or affecting the normal operation of the heating chamber due to assembly deviations. Moreover, the positioning function of pins is even more critical for water tanks and water tank caps with special shapes or asymmetrical designs. Therefore, there is an urgent need to develop a pin press-fit structure specifically for water tanks in automotive hot water heating chambers to press the pins into the mounting holes of the water tank. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a water tank pin press-fit structure for an automotive hot water heater, which aims to press the pin into the mounting hole of the water tank to facilitate the subsequent precise assembly of the water tank and the water tank cover.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A water tank pin press-fit structure for an automotive hot water heater includes a base plate, multiple support seats disposed on the base plate, a first pressing mechanism, a second pressing mechanism, and a press-fitting mechanism; the upper surfaces of the multiple support seats are all used to support the lower surface of the water tank; the first pressing mechanism is used to press the upper surface of the water tank; the support seats have vertically extending placement through holes for placing pins, and the press-fitting mechanism is used to press the pins in the placement through holes into the mounting holes of the water tank; the pressing end of the second pressing mechanism is used to press the upper surface of the water tank, and the pressing end of the second pressing mechanism is used to cover the mounting holes of the water tank from above.

[0007] The aforementioned water tank pin press-fit structure for an automotive hot water heater includes a base plate with multiple vertically arranged clearance through holes, each of which communicates with a corresponding placement through hole. The press-fit mechanism includes a mounting plate located below the base plate, a drive cylinder mounted on the mounting plate with its output end facing upwards, a press pin head connected to the output end of the drive cylinder, and a push rod fixed to the top of the press pin head and extending vertically. The drive cylinder is used to drive the push rod to move up and down reciprocally within the clearance through holes and the placement through holes.

[0008] The water tank pin press-fit structure of the automotive hot water heater includes a pressure sensor installed between the drive cylinder and the press pin head.

[0009] The water tank pin press-fit structure of the automotive hot water heater box includes a stroke sensor on one side of the mounting plate; the stroke sensor is used to determine the travel stroke of the press pin head.

[0010] The water tank pin press-fit structure of the automotive hot water heater box includes a first sensor in the support base for detecting whether a pin is placed in the placement through hole.

[0011] The water tank pin press-fit structure of the automotive hot water heater box includes a positioning pin on the upper surface of the support base, which is used to insert into the corresponding positioning hole of the water tank.

[0012] The water tank pin press-fit structure of the automotive hot water heater includes a first pressing mechanism comprising a first pressing cylinder fixedly connected to the base plate, a first hinge seat disposed on the cylinder body of the first pressing cylinder, and a first pressing rod whose connecting end is connected to the output end of the first pressing cylinder; the middle part of the first pressing rod is hinged to the first hinge seat, and the free end of the first pressing rod is used to abut against the upper surface of the water tank.

[0013] The water tank pin press-fit structure of the automotive hot water heater includes a second pressing mechanism comprising a second pressing cylinder fixedly connected to the base plate, a second hinge seat disposed on the cylinder body of the second pressing cylinder, and a second pressing rod whose connecting end is connected to the output end of the second pressing cylinder; the middle part of the second pressing rod is hinged to the second hinge seat, the free end of the second pressing rod is used to abut against the upper surface of the water tank, and the free end of the second pressing rod is used to cover the placement through hole from above.

[0014] The water tank pin press-fit structure of the automotive hot water heater includes multiple anti-foolproof blocks and a second sensor on the upper surface of the base plate; the multiple second sensors are used to detect whether a water tank is placed on the base plate.

[0015] The water tank pin press-fit structure of the automotive hot water heater box, wherein the upper surface of the base plate is also provided with a marking mechanism.

[0016] Beneficial effects:

[0017] This utility model provides a water tank pin press-fit structure for an automotive hot water heater. It includes a support base for supporting the water tank, a first pressing mechanism and a second pressing mechanism for pressing the water tank onto a base plate, and a press-fit mechanism for pressing the pin into the mounting hole of the water tank, thereby ensuring the precise assembly of the water tank and the water tank cap. Attached Figure Description

[0018] Figure 1 A schematic diagram of the press-fit structure of the water tank pin in an automotive water heater.

[0019] Figure 2 This is a schematic diagram of the press-fit structure of the water tank pin for a car's water heater box, which has a water tank installed.

[0020] Figure 3 This is a schematic diagram of the press-fitting mechanism.

[0021] Figure 4 A partial structural diagram of the water tank pin press-fit structure for an automotive water heater.

[0022] Figure 5 This is a schematic diagram of the water tank.

[0023] Explanation of main component symbols: 1-base plate, 11-second sensor, 2-support base, 21-placement through hole, 22-first sensor, 23-positioning pin, 3-first pressing mechanism, 31-first pressing cylinder, 32-first hinge base, 33-first pressure rod, 4-second pressing mechanism, 41-second pressing cylinder, 42-second hinge base, 43-second pressure rod, 5-pressing mechanism, 51-mounting plate, 52-pressure pin head, 53-top rod, 54-pressure sensor, 55-stroke sensor, 6-foolproof block, 7-marking mechanism; 10-water tank, 101-mounting hole, 102-positioning hole, 20-pin. Detailed Implementation

[0024] This utility model provides a water tank pin press-fit structure for an automotive hot water heater. To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following describes this utility model in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit the scope of protection of this utility model.

[0025] Please see Figure 1 , Figure 2 and Figure 4 , Figure 5 This utility model provides a water tank pin press-fit structure for an automotive hot water heater, including a base plate 1, multiple support seats 2 disposed on the base plate 1, a first pressing mechanism 3, a second pressing mechanism 4, and a press-fit mechanism 5; the upper surfaces of the multiple support seats 2 are all used to support the lower surface of the water tank 10; the first pressing mechanism 3 is used to press the upper surface of the water tank 10; the support seats 2 are provided with vertically extending placement through holes 21 for placing pins 20, and the press-fit mechanism 5 is used to press the pins 20 in the placement through holes 21 into the mounting holes 101 of the water tank 10; the pressing end of the second pressing mechanism 4 is used to press the upper surface of the water tank 10, and the pressing end of the second pressing mechanism 4 is used to cover the mounting holes 101 of the water tank 10 from above.

[0026] In actual use, the operator needs to place the pin 20 to be pressed into the placement through hole 21 of the support base 2, and place the water tank 10 on the base plate 1, with the placement through hole 21 corresponding one-to-one with the mounting hole 101 of the water tank 10. The first pressing mechanism 3 and the second pressing mechanism 4 operate to firmly press the water tank 10 onto the base plate 1, preventing displacement of the water tank 10 during the pressing process, which would affect the pressing accuracy of the pin 20 and avoid damage to the water tank 10 and the pressing mechanism 5. Subsequently, the pressing mechanism 5 operates to press the pin 20 in the placement through hole 21 into the corresponding mounting hole 101 of the water tank 10. Since the pressing end of the second pressing mechanism 4 covers the mounting hole 101 of the water tank 10, it can limit the vertical movement of the pin 20, thereby ensuring that the pin 20 is located in the mounting hole 101. Furthermore, the mounting hole 101 is interference-fitted with the pin 20, so the pin 20 can still be located in the mounting hole 101 of the water tank 10 after the press-fit mechanism 5 is withdrawn.

[0027] Please see Figure 3 In some embodiments, the base plate 1 has multiple vertically arranged clearance holes, each of which communicates with a corresponding placement hole 21. The pressing mechanism 5 includes a mounting plate 51 located below the base plate 1, a drive cylinder (not shown in the figure) mounted on the mounting plate 51 with its output end facing upward, a pressing pin head 52 connected to the output end of the drive cylinder, and a top rod 53 fixed to the top of the pressing pin head 52 and extending vertically. The pressing pin head 52 is used to drive the top rod 53 to move up and down reciprocally in the clearance holes and the placement holes 21. In this embodiment, the pressing mechanism 5 is located below the base plate 1, and the second pressing mechanism 4 restricts the displacement of the pin 20 from above. During operation, the top rod 53 provides an upward lifting force, thereby pressing the pin 20 into the mounting hole 101 of the water tank 10. Preferably, the drive cylinder is a hydraulic cylinder.

[0028] Please see Figure 3In some embodiments, a pressure sensor 54 is also provided between the drive cylinder and the pressing head 52. The pressure sensor 54 can be used to monitor the pressure during the pressing of the pin 20. Appropriate pressure can ensure a good interference fit between the pin 20 and the mounting hole 101, ensuring that the pin 20 will not easily loosen or fall out. Moreover, the pressure data can reflect whether the pressing process of the pin 20 meets the standard. When abnormal pressure fluctuations occur, it may indicate that the pin 20 has tilted or distorted during pressing, or that there are problems such as dimensional deviations or foreign objects inside the mounting hole 101. By analyzing the pressure data, these factors that may lead to a decline in installation quality can be identified in a timely manner, and corresponding corrective measures can be taken.

[0029] Please see Figure 3 In some embodiments, a stroke sensor 55 is also provided on one side of the mounting plate 51; the stroke sensor 55 is used to determine the travel distance of the pressing head 52. The stroke sensor 55 can accurately measure the travel distance of the pressing head 52, and through a preset standard travel value, it can accurately determine whether the pin 20 is fully inserted into the mounting hole 101. For example, for a specific specification of pin 20 and mounting hole 101, the required pressing travel is fixed. If the travel detected by the stroke sensor 55 is less than the standard value, it may mean that the pin 20 is not fully inserted, which will affect the stability of the connection between the water tank 10 and the water tank cover. If the travel is greater than the standard value, it may indicate that the pin 20 is too long or there is a problem with the mounting hole 101, such as foreign objects at the bottom or dimensional deviations. Moreover, in the mass production process, the stroke sensor 55 helps to ensure that the pressing depth of each pin 20 is consistent.

[0030] Please see Figure 4 In some embodiments, the support base 2 is equipped with a first sensor 22 for detecting whether a pin 20 is placed in the placement through hole 21. In an automated pin 20 pressing process, without a pin 20 detection mechanism, the pressing head 52 might operate without a pin when there is no pin 20 in the placement through hole 21. This not only wastes production time but may also cause unnecessary wear to the pressing structure. The first sensor 22 can detect in a timely manner whether a pin 20 is in the placement through hole 21. Only when a pin 20 is detected is subsequent pressing operation allowed, thus ensuring the continuity and effectiveness of the production process. Furthermore, the first sensor 22, as an important detection point on the automated production line, provides the foundation for the automation of the entire pin 20 pressing process. When the sensor detects that a pin 20 has been placed in the placement through hole 21, it can automatically trigger the subsequent pressing process without manual intervention.

[0031] Please see Figure 2 , Figure 4 and Figure 5In some embodiments, the upper surface of the support base 2 is provided with a positioning pin 23, which is used to insert into the corresponding positioning hole 102 of the water tank 10. Considering the shape of the water tank 10 and the number of positioning holes 102 on it, in this embodiment, two of the four support bases 2 are provided with positioning pins 23 on their upper surfaces. Each positioning pin 23 is inserted into the corresponding positioning hole 102 on the water tank 10, thereby ensuring that the water tank 10 is placed on the base plate 1 at a set position and angle. During assembly, workers do not need to spend a lot of time and effort adjusting the position of the water tank 10; they only need to align the positioning hole 102 on the water tank 10 with the positioning pin 23 on the support base 2 and then gently lower the water tank 10 to complete the positioning. This greatly simplifies the assembly process of the water tank 10, improves the assembly speed, and especially on large-scale production lines, can significantly reduce the assembly time of individual products and improve overall production efficiency.

[0032] Please see Figure 2 In some embodiments, the first pressing mechanism 3 includes a first pressing cylinder 31 fixedly connected to the base plate 1, a first hinge seat 32 disposed on the cylinder body of the first pressing cylinder 31, and a first pressing rod 33 whose connecting end is connected to the output end of the first pressing cylinder 31; the middle part of the first pressing rod 33 is hinged to the first hinge seat 32, and the free end of the first pressing rod 33 is used to abut against the upper surface of the water tank 10.

[0033] Please see Figure 2 In some embodiments, the second pressing mechanism 4 includes a second pressing cylinder 41 fixedly connected to the base plate 1, a second hinge seat 42 disposed on the cylinder body of the second pressing cylinder 41, and a second pressing rod 43 whose connecting end is connected to the output end of the second pressing cylinder 41; the middle part of the second pressing rod 43 is hinged to the second hinge seat 42, the free end of the second pressing rod 43 is used to abut against the upper surface of the water tank 10, and the free end of the second pressing rod 43 is used to cover the placement through hole 21 from above.

[0034] Please see Figure 1 and Figure 2 Furthermore, in this embodiment, the number of support seats 2 is equal to the sum of the first pressing mechanism 3 and the second pressing mechanism 4, that is, each support seat 2 corresponds to one first pressing rod 33 or a second pressing rod 43. The support seat 2 provides upward supporting force, and the first pressing rod 33 and the second pressing rod 43 provide downward pressing force. The two correspond one-to-one, which can alleviate the impact force on the water tank 10 and prevent the water tank 10 from deforming.

[0035] After the water tank 10 is placed in position, the output end of the first pressing cylinder 31 extends, and the connecting end of the first pressing rod 33 rotates around the first hinge seat 32, causing the free end of the first pressing rod 33 to press downward, thereby pressing the water tank 10. The working principle of the second pressing mechanism 4 is the same as that of the first pressing mechanism 3. In practical applications, the first pressing mechanism 3 and the second pressing mechanism 4 can operate simultaneously or in stages.

[0036] Please see Figure 1 and Figure 2 In some embodiments, the upper surface of the base plate 1 is further provided with multiple anti-misalignment blocks 6. The anti-misalignment blocks 6 provide clear directional guidance for the assembly of the water tank 10. By restricting the placement direction of the water tank 10, workers can quickly and accurately place the water tank 10 in the correct position, avoiding rework due to incorrect orientation. Furthermore, the anti-misalignment blocks 6 cooperate with corresponding structures on the water tank 10 or other components, further ensuring the uniqueness of the assembly position. Besides the basic positioning of the water tank 10 by the locating pins 23, the anti-misalignment blocks 6 can limit the assembly position in other dimensions.

[0037] Please see Figure 2 In some embodiments, the upper surface of the base plate 1 is also provided with a plurality of second sensors 11, all of which are used to detect whether a water tank 10 is placed on the base plate 1. On the production line of automotive hot water heaters, the second sensors 11 serve as key detection points for process initiation. When the second sensors 11 detect that the water tank 10 has been placed on the base plate 1, they can automatically trigger a series of subsequent assembly processes related to the water tank 10.

[0038] Please see Figure 1 and Figure 2 In some embodiments, a marking mechanism 7 is also provided on the upper surface of the base plate 1. After the pins 20 are pressed in, the marking mechanism 7 automatically performs a marking operation at the corresponding position on the water tank 10. This rapid marking method can clearly distinguish between qualified products and untested or unqualified products, facilitating subsequent production process management. Specifically, the marking mechanism 7 is a marking gun.

[0039] In summary, this utility model ensures precise assembly of the water tank 10 and its cover by providing a support base 2 to support the water tank 10; providing a first pressing mechanism 3 and a second pressing mechanism 4 to press the water tank 10 onto the base plate 1; and providing a pressing mechanism 5 to press the pin 20 into the mounting hole 101 of the water tank 10. In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms 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 component 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.

[0040] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0041] 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, an electrical connection, or a connection that allows for communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of this utility model, and all such substitutions or changes should fall within the protection scope of this utility model.

Claims

1. A water tank pin press-fit structure for an automotive hot water heater, characterized in that, The device includes a base plate, multiple support seats disposed on the base plate, a first pressing mechanism, a second pressing mechanism, and a pressing mechanism; the upper surfaces of the multiple support seats are all used to support the lower surface of the water tank; the first pressing mechanism is used to press the upper surface of the water tank; the support seats are provided with vertically extending placement through holes for placing pins, and the pressing mechanism is used to press the pins in the placement through holes into the mounting holes of the water tank; the pressing end of the second pressing mechanism is used to press the upper surface of the water tank, and the pressing end of the second pressing mechanism is used to cover the mounting holes of the water tank from above.

2. The water tank pin press-fit structure for an automotive hot water heater according to claim 1, characterized in that, The base plate has multiple clearance through holes arranged vertically, and the multiple clearance through holes are respectively connected to the corresponding placement through holes; the pressing mechanism includes a mounting plate located below the base plate, a drive cylinder mounted on the mounting plate with its output end facing upward, a pressing pin head connected to the output end of the drive cylinder, and a top rod fixed to the top of the pressing pin head and extending vertically; the drive cylinder is used to drive the top rod to move up and down reciprocally in the clearance through holes and the placement through holes.

3. The water tank pin press-fit structure for an automotive hot water heater according to claim 2, characterized in that, A pressure sensor is also provided between the drive cylinder and the pressure pin head.

4. The water tank pin press-fit structure for an automotive hot water heater according to claim 2, characterized in that, A stroke sensor is also provided on one side of the mounting plate; the stroke sensor is used to determine the travel distance of the pressure pin head.

5. The water tank pin press-fit structure for an automotive hot water heater according to claim 2, characterized in that, The support base is equipped with a first sensor for detecting whether a pin is placed in the placement through hole.

6. The water tank pin press-fit structure for an automotive hot water heater according to claim 2, characterized in that, The upper surface of the support base is provided with a positioning pin, which is used to insert into the corresponding positioning hole of the water tank.

7. The water tank pin press-fit structure for an automotive hot water heater according to claim 1, characterized in that, The first pressing mechanism includes a first pressing cylinder fixedly connected to the base plate, a first hinge seat disposed on the cylinder body of the first pressing cylinder, and a first pressing rod whose connecting end is connected to the output end of the first pressing cylinder; the middle part of the first pressing rod is hinged to the first hinge seat, and the free end of the first pressing rod is used to abut against the upper surface of the water tank.

8. The water tank pin press-fit structure for an automotive hot water heater according to claim 1, characterized in that, The second pressing mechanism includes a second pressing cylinder fixedly connected to the base plate, a second hinge seat disposed on the cylinder body of the second pressing cylinder, and a second pressing rod whose connecting end is connected to the output end of the second pressing cylinder; the middle part of the second pressing rod is hinged to the second hinge seat, the free end of the second pressing rod is used to abut against the upper surface of the water tank, and the free end of the second pressing rod is used to cover the placement through hole from above.

9. The water tank pin press-fit structure for an automotive hot water heater according to claim 1, characterized in that, The upper surface of the base plate is also provided with multiple anti-foolproof blocks and a second sensor; the multiple second sensors are used to detect whether a water tank is placed on the base plate.

10. The water tank pin press-fit structure for an automotive hot water heater according to claim 1, characterized in that, The upper surface of the base plate is also provided with a marking mechanism.

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