Auxiliary positioning tool for installation of tramcar electromagnetic valve island

Abstract

The utility model provides a kind of auxiliary positioning tool for installation of trolley solenoid valve island, including mounting seat, the one end of mounting seat is fixedly installed with resistance positioning plate, the middle is equipped with positioning installation groove, valve island busbar is placed in the positioning installation groove, multiple the sealing gasket and solenoid valve are installed on the valve island busbar;The transverse plate is connected with mounting seat by hinge, every the lower portion of the lower pressing rod of the transverse plate installation is equipped with septum, the lower pressing rod can be inserted in the limiting block of the mounting seat setting;The utility model does not need to install first solenoid valve, valve island busbar is inserted into positioning slot and is completed initial positioning by abutting positioning plate;Transverse plate and mounting seat integration, septum separates, lower pressing rod is limited, ensure that positioning is stable, high precision.

Description

Technical Field

[0001] This utility model belongs to the field of valve island tooling technology, and in particular relates to an auxiliary positioning tooling for the installation of a trolley solenoid valve island. Background Technology

[0002] As a new generation of pneumatic-electromechanical integrated control components, valve islands have undergone technological development from basic forms with multi-pin interfaces to advanced versions integrating fieldbus functions, and then to programmable and modular valve islands. The combination of valve island technology and fieldbus technology not only greatly simplifies the wiring process for electrically controlled valves but also significantly improves the debugging efficiency, performance testing convenience, and post-maintenance ease of complex systems. With these advantages, valve islands demonstrate broad application prospects in industrial automation, especially in the production of precision equipment such as electric vehicle manufacturing.

[0003] During the assembly of a valve island, the installation accuracy of the solenoid valve and the valve island manifold directly affects the reliability of the air and electrical connections, thus determining the overall performance of the valve island. To improve installation accuracy and efficiency, various auxiliary positioning fixtures for valve island installation have emerged. For example, the "auxiliary positioning fixture for valve island installation" described in Chinese utility model patent document CN222627541U.

[0004] However, existing auxiliary positioning fixtures of this type have significant technical defects: First, the achievement of auxiliary positioning relies entirely on manual installation of the first solenoid valve as a reference, which not only increases the initial operation steps but also greatly reduces the auxiliary nature of the fixture, making it impossible to independently complete the pre-positioning of the valve island manifold and the components to be installed; Second, the distributor used does not have a structural connection with the main body of the fixture, and the positioning process relies entirely on the clamping effect of the installed solenoid valve on the separation plate, resulting in poor positioning stability and susceptibility to the installation accuracy of the installed solenoid valve. If there is a slight offset in the installed solenoid valve, the positioning accuracy of the subsequent solenoid valves to be installed will be amplified, thereby affecting the overall assembly quality.

[0005] Therefore, it is essential to invent an auxiliary positioning fixture for installing a solenoid valve island in a tram. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides an auxiliary positioning fixture for installing a solenoid valve island in an electric vehicle, including a mounting base, a contact positioning plate, a positioning mounting groove, a valve island manifold, a sealing gasket, a solenoid valve, a horizontal plate, a hinge, a pressing rod, a partition, and a limiting block. The mounting base has a contact positioning plate fixedly installed at one end, and a positioning mounting groove is provided in the middle. The valve island manifold is placed in the positioning mounting groove, and multiple sealing gaskets and solenoid valves are installed on the valve island manifold. The horizontal plate is connected to the mounting base via a hinge. A partition is installed below each pressing rod installed on the horizontal plate, and the pressing rod can be inserted into the limiting block provided on the mounting base.

[0007] Preferably, the positioning mounting groove of the mounting base is a U-shaped groove, and the cross-section of the mounting base is U-shaped. The abutment positioning plate fixedly installed at one end of the mounting base is used to block the opening at one end of the positioning mounting groove.

[0008] Preferably, one end of the valve island manifold placed in the lower middle of the positioning mounting groove abuts against the inner wall of the contact positioning plate, and the valve island manifold can be inserted into the positioning mounting groove from the opening at the end that is not blocked by the contact positioning plate.

[0009] Preferably, the upper surface of the valve island manifold contacts the lower surface of the partition, and several partitions can enter the upper part of the positioning and mounting groove, thus isolating the space for subsequent assembly of the sealing gasket and solenoid valve.

[0010] Preferably, the upper part of each of the partitions is fixed to the lower surface of the corresponding rectangular pressure rod, one end of the pressure rod can be inserted into the groove of the limiting block, and several limiting blocks are arranged laterally on one side of the upper surface of the mounting base.

[0011] Preferably, one end of each of the plurality of pressure rods is fixed to one side surface of the horizontal plate, the horizontal plate can rotate 180° via the hinge, and the horizontal plate and the limiting block are arranged opposite to each other.

[0012] Compared with the prior art, the present invention has the following beneficial effects: This invention eliminates the need for manual pre-installation of individual solenoid valves as a reference. Through the cooperation of the U-shaped positioning groove on the mounting base with the contact positioning plate and partition, precise pre-positioning of the valve island manifold can be achieved directly. After the valve island manifold is inserted through the opening end of the positioning groove, one end abuts against the inner wall of the contact positioning plate, completing the initial positioning. This eliminates the need for manual installation of the first solenoid valve, reduces reliance on manual operation, and significantly improves the tooling's proactive assistance capabilities.

[0013] This invention features an integrated structure formed by a hinged horizontal plate and mounting base. The pressure rod and spacer on the horizontal plate act as positioning components, closely connected to the main fixture body rather than existing independently. This structural connection ensures that the positioning of the gasket and solenoid valve to be installed no longer depends on the already installed solenoid valve. Instead, stable positioning is achieved through the spacing effect of the spacer and the limiting effect of the pressure rod, effectively avoiding subsequent positioning errors caused by the offset of the already installed solenoid valve and significantly improving positioning stability.

[0014] Furthermore, the partitions of this invention can precisely separate the assembly space of the sealing gasket and the solenoid valve, ensuring consistent spacing between adjacent components to be assembled. Simultaneously, they allow for quick alignment of the mounting holes of the sealing gasket and solenoid valve with the threaded holes of the valve island manifold, reducing the time cost of manual alignment. Additionally, the insertion of the pressure rod into the groove of the limiting block further restricts the position of the horizontal plate and partitions, preventing displacement of the positioning components due to external forces during assembly and ensuring consistent assembly accuracy. Attached Figure Description

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

[0016] Figure 2 This is a schematic diagram of the structure of the partition of this utility model after it has been rotated 90 degrees.

[0017] Figure 3 This is a schematic diagram of the sealing gasket and solenoid valve of this utility model before assembly.

[0018] In the picture: Mounting base 1, contact positioning plate 2, positioning mounting groove 3, valve island manifold 4, sealing gasket 5, solenoid valve 6, horizontal plate 7, hinge 8, pressure rod 9, partition 10, limit block 11. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0020] In the description of the embodiments, 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 the present invention and for 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 the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" 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 the present utility model based on the specific circumstances.

[0021] As attached Figure 1 To be continued Figure 3 As shown: This utility model provides an auxiliary positioning fixture for installing a solenoid valve island in a tram, comprising a mounting base 1, a contact positioning plate 2, a positioning mounting groove 3, a valve island manifold 4, a sealing gasket 5, a solenoid valve 6, a horizontal plate 7, a hinge 8, a pressing rod 9, a partition 10, and a limiting block 11. The mounting base 1 has a contact positioning plate 2 fixedly installed at one end, and a positioning mounting groove 3 is provided in the middle. The valve island manifold 4 is placed in the positioning mounting groove 3, and multiple sealing gaskets 5 and solenoid valves 6 are installed on the valve island manifold 4. The horizontal plate 7 is connected to the mounting base 1 via the hinge 8. A partition 10 is installed below each pressing rod 9 installed on the horizontal plate 7, and the pressing rod 9 can be inserted into the limiting block 11 provided on the mounting base 1.

[0022] Furthermore, the mounting base 1 is made of high-strength cast iron, with a robust overall structure and excellent resistance to deformation. The positioning mounting groove 3 on the mounting base 1 is a U-shaped groove. The width and depth of this groove are precision machined, and its bottom area is adapted to the thickness and width of the valve island manifold 4. The surface roughness of the groove wall is controlled at a low level to ensure the smooth insertion of the valve island manifold 4 both laterally and vertically (vertical insertion is achieved after the partition plate 10 is removed from the positioning mounting groove 3). The cross-section of the mounting base 1 is U-shaped. This structural design reduces the overall weight of the tooling while providing sufficient structural support for the positioning mounting groove 3. An abutment positioning plate 2 is fixedly installed at one end of the mounting base 1 by bolts. The abutment positioning plate 2 is made of 45 steel and has been quenched, giving it high wear resistance and rigidity. Its surface is perpendicular to the length direction of the positioning mounting groove 3, which can precisely seal one end opening of the positioning mounting groove 3, forming a reference surface for axial positioning.

[0023] Furthermore, the bottom plane of the positioning mounting groove 3 serves as the support surface for the valve island manifold 4. This plane is ground to achieve minimal flatness error. One end of the valve island manifold 4, placed within the positioning mounting groove 3, is in close contact with the inner wall of the contact positioning plate 2, with the gap between the contact surfaces controlled within 0.02mm, thus achieving precise axial positioning of the valve island manifold 4. The end of the positioning mounting groove 3 that is not blocked by the contact positioning plate 2 forms an open opening. The width of this opening is consistent with the width of the positioning mounting groove 3, allowing the valve island manifold 4 to be smoothly inserted along the length of the positioning mounting groove 3 from this opening. During insertion, the two sides of the valve island manifold 4 maintain a small gap with the groove wall of the positioning mounting groove 3, ensuring smooth movement while limiting lateral displacement.

[0024] Furthermore, the upper surface of the valve island manifold 4 is milled to achieve a high degree of flatness. The lower surface of the partition 10 is in close contact with this flat surface, providing a certain pressure constraint on the components to be installed on the valve island manifold 4. The partition 10 is made of hard alloy material, with uniform thickness and good wear resistance. The spacing between several partitions 10 is precisely set according to the installation dimensions of the solenoid valve 6. When the horizontal plate 7 is closed, the partition 10 can enter the upper part of the positioning mounting groove 3, with its two side edges fitting with the groove wall of the positioning mounting groove 3. Through the spacing effect of the partitions 10, multiple independent assembly spaces can be precisely separated on the upper surface of the valve island manifold 4, each space perfectly accommodating the installation requirements of a sealing gasket 5 and a solenoid valve 6.

[0025] Furthermore, the upper surface of each partition 10 is fixedly connected to the lower surface of the corresponding rectangular pressure rod 9 by welding. The weld is ground to ensure a firm connection without any obvious protrusions, guaranteeing the perpendicularity of the partition 10 and the pressure rod 9. The pressure rod 9 is made of high-quality carbon steel with a rectangular cross-section, possessing good rigidity. Its length and width dimensions are precisely designed according to the structural parameters of the mounting base 1. The end of the pressure rod 9 furthest from the horizontal plate 7 can be precisely inserted into the groove of the limiting block 11. The cross-sectional dimensions of the groove match the cross-sectional dimensions of the pressure rod 9, with the clearance controlled within 0.05mm to achieve radial limiting of the pressure rod 9. Several limiting blocks 11 are made of cast iron and are evenly arranged laterally on the upper surface of the mounting base 1 near the edge by bolts. The spacing between adjacent limiting blocks 11 is consistent with the spacing between adjacent pressure rods 9.

[0026] Furthermore, the ends of several pressing rods 9 furthest from the limiting block 11 are fixedly connected to one side surface of the horizontal plate 7 by bolts. The positional accuracy of the connection points is strictly controlled to ensure that the axis of each pressing rod 9 coincides with the centerline of the corresponding partition 10. The horizontal plate 7 is welded from steel plate and has sufficient rigidity. One edge of the horizontal plate is connected to the edge of the mounting base 1 by a hinge 8. The hinge 8 is a high-precision industrial hinge to ensure that the horizontal plate 7 can smoothly rotate 180° around the axis of the hinge 8.

[0027] The working principle is as follows: First, place the mounting base 1 in a suitable working position to ensure its stability. Next, insert the valve island manifold 4 laterally along its length from the opening of the positioning mounting groove 3 that is not blocked by the positioning plate 2, until one end of the valve island manifold 4 is in close contact with the inner wall of the positioning plate 2. At this time, the valve island manifold 4 achieves preliminary axial and lateral positioning within the positioning mounting groove 3.

[0028] Then, flip the horizontal plate 7 and rotate it to the designated position. At this time, the partition 10 below the pressure rod 9 on the horizontal plate 7 enters vertically into the upper part of the positioning and mounting groove 3. The lower surface of the partition 10 contacts the upper surface of the valve island manifold 4 and separates the adjacent sealing gaskets 5 and solenoid valves 6 to form independent assembly spaces. After that, multiple sealing gaskets 5 and solenoid valves 6 are placed in the assembly space in the order of installation and located on the upper surface of the valve island manifold 4.

[0029] Simultaneously, the end of the pressure rod 9 furthest from the horizontal plate 7 is precisely inserted into the groove of the limiting block 11 on the mounting base 1, fixing the positions of the horizontal plate 7, pressure rod 9, and partition 10 to prevent displacement during installation. Finally, the worker can use tools to pass screws through the mounting holes of the solenoid valve 6 and the sealing gasket 5, and screw them into the corresponding threaded holes of the valve island manifold 4, completing the installation of the solenoid valve 6 and the sealing gasket 5 on the valve island manifold 4. After installation, flip the horizontal plate 7 to open it, and remove the valve island manifold 4 with the solenoid valve 6 installed from the positioning mounting groove 3.

[0030] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. An auxiliary positioning fixture for installing a solenoid valve island in a tram, characterized in that, The system includes a mounting base (1), a contact positioning plate (2), a positioning mounting groove (3), a valve island manifold (4), a sealing gasket (5), a solenoid valve (6), a horizontal plate (7), a hinge (8), a pressure rod (9), a partition (10), and a limiting block (11). The mounting base (1) is fixedly mounted with a contact positioning plate (2) at one end, and a positioning mounting groove (3) is provided in the middle. The valve island manifold (4) is placed in the positioning mounting groove (3), and multiple sealing gaskets (5) and solenoid valves (6) are installed on the valve island manifold (4). The horizontal plate (7) is connected to the mounting base (1) through a hinge (8). A partition (10) is installed below each pressure rod (9) installed on the horizontal plate (7), and the pressure rod (9) can be inserted into the limiting block (11) provided on the mounting base (1).

2. The auxiliary positioning fixture for installing a tram solenoid valve island as described in claim 1, characterized in that: The positioning mounting groove (3) provided by the mounting base (1) is a "U" shaped groove, and the cross section of the mounting base (1) is "U" shaped. The abutment positioning plate (2) fixedly installed at one end of the mounting base (1) is used to block the opening at one end of the positioning mounting groove (3).

3. The auxiliary positioning fixture for installing a tram solenoid valve island as described in claim 2, characterized in that: The valve island manifold (4) placed in the middle of the positioning mounting groove (3) has one end in contact with the inner wall of the contact positioning plate (2), and the valve island manifold (4) can be inserted into the positioning mounting groove (3) from the opening at one end that is not blocked by the contact positioning plate (2).

4. The auxiliary positioning fixture for installing a tram solenoid valve island as described in claim 3, characterized in that: The upper surface of the valve island manifold (4) contacts the lower surface of the partition (10), and several partitions (10) can enter the upper part of the positioning mounting groove (3) and separate the subsequent assembly space of the sealing gasket (5) and the solenoid valve (6).

5. The auxiliary positioning fixture for installing a tram solenoid valve island as described in claim 4, characterized in that: Each of the partitions (10) is fixed to the lower surface of the corresponding rectangular pressure rod (9). One end of the pressure rod (9) can be inserted into the groove of the limiting block (11). Several limiting blocks (11) are arranged laterally on one side of the upper surface of the mounting base (1).

6. The auxiliary positioning fixture for installing a trolley solenoid valve island as described in claim 5, characterized in that: One end of each of the several pressure rods (9) is fixed to one side surface of the horizontal plate (7). The horizontal plate (7) can rotate 180° via the hinge (8). The horizontal plate (7) and the limiting block (11) are arranged opposite to each other.

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