A hydraulic tooling for machining passenger car frames

Abstract

This utility model relates to the field of clamping tooling technology, and discloses a hydraulic tooling for machining passenger car frames. It includes a base plate, a positioning mechanism, a hydraulic mechanism, a first hydraulic pipe connector, a side fixing mechanism, an air jet pipe, and an air pipe connector. The positioning mechanism and the hydraulic mechanism are both located on the upper surface of the base plate. A first through hole is provided at the connection between the base plate and the hydraulic mechanism. One end of the first hydraulic pipe connector is connected to the hydraulic mechanism, and the other end extends through the first through hole and out of the lower surface of the base plate. The side fixing mechanism is located on the upper surface of the base plate and is used to fix the frame in the X-axis and Y-axis directions. The air jet pipe is located on the upper surface of the base plate, and a second through hole is provided at the connection between the base plate and the air jet pipe. One end of the air pipe connector is connected to the air jet pipe, and the other end extends through the second through hole and out of the lower surface of the base plate. This utility model reduces manufacturing difficulty and cost while improving the efficiency of tooling inspection and maintenance.

Description

Technical Field

[0001] This utility model relates to the field of clamping tooling technology, specifically to a hydraulic tooling for machining passenger car frames. Background Technology

[0002] In the automotive manufacturing industry, the passenger car frame, as a core component, has a decisive impact on the overall vehicle quality and performance due to its machining precision. Therefore, considering the machining process and equipment for passenger car frames has become a crucial aspect of ensuring vehicle quality. Currently, the fixing and unloading operations of workpieces during passenger car frame machining have extremely high requirements, directly affecting machining efficiency and final product quality. To achieve precise control of the fixture, current methods primarily rely on the precise management of hydraulic circuit on / off to achieve complete sequential control of the fixture's movements, thereby ensuring accurate workpiece positioning. However, this traditional control method also has its limitations, especially in the structural design and manufacturing process of hydraulic tooling.

[0003] In traditional machining of hydraulic and air intake circuits for chassis frames, deep-hole drilling is typically used on the sides of the chassis. This method requires the entire hydraulic and air intake circuit to be arranged parallel to the long side of the chassis, resulting in long circuit routes and extremely high precision requirements. Deep-hole drilling is difficult, increasing production costs and significantly hindering subsequent inspection and maintenance due to the deep location of the hydraulic and air intake circuits within the chassis. Faults require considerable time and effort for troubleshooting and repair, significantly increasing maintenance costs over the lifespan of the hydraulic fixture and reducing the overall efficiency of the production system. Given the numerous shortcomings of existing hydraulic fixtures in terms of machining, maintenance, and efficiency, there is an urgent need to design a new type of hydraulic fixture for machining passenger car chassis. This fixture aims to address the problems in existing technologies, improve machining accuracy, reduce maintenance costs, and increase production efficiency, thereby better meeting the high standards required by the modern automotive manufacturing industry for passenger car chassis machining. Utility Model Content

[0004] To address the problems of long hydraulic oil circuits and air jet circuits in existing hydraulic tooling base plates for passenger vehicle frame machining, which are entirely located inside the base plate, leading to high machining difficulty, high cost, difficult inspection, and difficult maintenance, this utility model provides a hydraulic tooling for passenger vehicle frame machining.

[0005] The technical solution adopted by this utility model to achieve the above objectives is: a hydraulic tooling for machining passenger car frames, comprising...

[0006] Base plate;

[0007] A positioning mechanism is disposed on the upper surface of the base plate, and the positioning mechanism is used to support the frame in the Z-axis direction;

[0008] A hydraulic mechanism is disposed on the upper surface of the base plate, and the hydraulic mechanism is used to press the frame in the Z-axis direction;

[0009] The first hydraulic pipe connector has a first through hole at the connection between the base plate and the hydraulic mechanism. One end of the first hydraulic pipe connector is connected to the hydraulic mechanism, and the other end of the first hydraulic pipe connector extends out of the lower surface of the base plate after passing through the first through hole. The first hydraulic pipe connector is used to connect to the hydraulic pipe.

[0010] A side fixing mechanism is disposed on the upper surface of the base plate, and the side fixing mechanism is used to fix the vehicle frame in the X-axis direction and the Y-axis direction;

[0011] An air jet pipe is disposed on the upper surface of the base plate and is used to spray air onto the frame.

[0012] An air pipe connector is provided at the connection between the base plate and the jet pipe. One end of the air pipe connector is connected to the jet pipe, and the other end of the air pipe connector extends out of the lower surface of the base plate after passing through the second through hole. The air pipe connector is used to connect to the air pipe.

[0013] According to some embodiments of the present invention, a hydraulic tooling for machining passenger vehicle frames includes a positioning mechanism comprising a plurality of positioning blocks, each of which is in contact with the lower surface of the vehicle frame.

[0014] According to some embodiments of the present invention, a hydraulic tooling for machining passenger vehicle frames is provided, wherein there are multiple hydraulic mechanisms, and the multiple hydraulic mechanisms are distributed along the X-axis direction of the vehicle frame.

[0015] According to some embodiments of the present invention, a hydraulic tooling for machining passenger vehicle frames includes a first hydraulic cylinder, a first cylinder rod, a connecting rod, and a pressure head. The first hydraulic cylinder is connected to the upper surface of the base plate and to a first hydraulic pipe connector. One end of the first cylinder rod is connected to the first hydraulic cylinder, and the other end of the first cylinder rod is connected to the middle of the connecting rod. The pressure head is provided on both lower surfaces of the connecting rod, and the pressure head can fit against the upper surface of the vehicle frame when it moves downward.

[0016] According to some embodiments of the present invention, a hydraulic tooling for machining passenger vehicle frames is provided in which a connecting rod has a connecting through hole in the middle, and the upper end of the first cylinder rod passes through the connecting through hole and is fixedly connected to the connecting rod by bolts and nuts.

[0017] According to some embodiments of the present invention, a hydraulic tooling for machining passenger vehicle frames includes a side fixing mechanism comprising an X-axis fixing mechanism and a Y-axis fixing mechanism. The X-axis fixing mechanism is used to fix the frame in the X-axis direction, and the Y-axis fixing mechanism is used to fix the frame in the Y-axis direction.

[0018] According to some embodiments of the present invention, a hydraulic tooling for machining passenger vehicle frames includes an X-axis fixing mechanism comprising a second hydraulic cylinder, a second hydraulic pipe connector, a second cylinder rod, a second cylinder rod limiting seat, and an X-axis clamping block. The second hydraulic cylinder is connected to the upper surface of the base plate, and a third through hole is provided at the connection between the base plate and the second hydraulic cylinder. One end of the second hydraulic pipe connector is connected to the second hydraulic cylinder, and the other end of the second hydraulic pipe connector extends out of the lower surface of the base plate after passing through the third through hole. The second hydraulic pipe connector is used to connect to a hydraulic pipe. One end of the second cylinder rod is connected to the second hydraulic cylinder. The second cylinder rod limiting seat is connected to the upper surface of the base plate, and a through hole is provided in the second cylinder rod limiting seat. The other end of the second cylinder rod passes through the through hole and abuts against one end of the vehicle frame. The X-axis clamping block is connected to the upper surface of the base plate and abuts against the other end of the vehicle frame.

[0019] According to some embodiments of the present invention, a hydraulic tooling for machining passenger vehicle frames is provided, wherein there are multiple Y-axis fixing mechanisms, and the multiple Y-axis fixing mechanisms are distributed along the X-axis direction of the vehicle frame.

[0020] According to some embodiments of the present invention, a hydraulic tooling for machining passenger vehicle frames includes a Y-axis fixing mechanism comprising a third hydraulic cylinder, a third hydraulic pipe connector, a third cylinder rod, a third cylinder rod limiting seat, and a Y-axis clamping block. The third hydraulic cylinder is connected to the upper surface of the base plate. A fourth through hole is provided at the connection between the base plate and the third hydraulic cylinder. One end of the third hydraulic pipe connector is connected to the third hydraulic cylinder, and the other end of the third hydraulic pipe connector extends out of the lower surface of the base plate after passing through the fourth through hole. The third hydraulic pipe connector is used to connect to a hydraulic pipe. One end of the third cylinder rod is connected to the third hydraulic cylinder. The third cylinder rod limiting seat is connected to the upper surface of the base plate and has a through hole. The other end of the third cylinder rod passes through the through hole and abuts against one side of the vehicle frame. The Y-axis clamping block is connected to the upper surface of the base plate and abuts against the other side of the vehicle frame. The position of the Y-axis clamping block corresponds to the position of the third cylinder rod.

[0021] According to some embodiments of the present invention, a hydraulic tooling for machining passenger vehicle frames is provided with a base at the lower end of the base plate.

[0022] This utility model discloses a hydraulic tooling for machining passenger car frames. By optimizing the layout of the hydraulic oil circuit and air jet circuit of the base plate, and designing a first hydraulic pipe joint, a second hydraulic pipe joint, a third hydraulic pipe joint, and an air pipe joint, the traditional long circuit parallel to the long side of the base plate is changed to a short circuit perpendicular to the long side of the base plate. This significantly reduces the difficulty and cost of base plate machining. The new short circuit layout reduces the length of the oil and air circuits, not only reducing production costs but also improving the efficiency of the hydraulic and pneumatic systems. Simultaneously, the machining depth only needs to reach the thickness of the base plate, further simplifying the machining process, shortening machining time, and improving the tooling manufacturing efficiency. This utility model's hydraulic tooling is easy to operate. Through the coordinated work of various mechanisms, it achieves precise fixing and rapid loosening of the frame in all directions, significantly improving the efficiency and quality of frame machining. Furthermore, due to the short circuit design of the oil and air circuits and the optimized layout of various components, the tooling's inspection and maintenance are more convenient, greatly improving inspection and maintenance efficiency and reducing maintenance costs. In summary, the hydraulic tooling of this invention reduces manufacturing difficulty and cost while improving the efficiency of tooling inspection and maintenance. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a three-dimensional hydraulic tooling structure for machining passenger vehicle frames according to this utility model;

[0024] Figure 2 This is a schematic diagram of the main structure of a hydraulic tooling for machining passenger car frames according to this utility model;

[0025] Figure 3 This is a bottom-view three-dimensional structural diagram of a hydraulic tooling for machining passenger car frames according to this utility model;

[0026] Figure 4 This is a three-dimensional structural diagram of the vehicle frame being fixed on a hydraulic fixture according to this utility model.

[0027] In the diagram: 1. Base, 2. Base plate, 3. Hydraulic mechanism, 3-1. First hydraulic cylinder, 3-2. First cylinder rod, 3-3. Connecting rod, 3-4. Pressure head, 4. Positioning block, 5. First hydraulic pipe connector, 6. Air jet pipe, 7. Air pipe connector, 8. X-axis fixing mechanism, 8-1. Second hydraulic cylinder, 8-2. Second hydraulic pipe connector, 8-3. Second cylinder rod, 8-4. Second cylinder rod limit seat, 8-5. X-axis clamping block, 9. Y-axis fixing mechanism, 9-1. Third hydraulic cylinder, 9-2. Third hydraulic pipe connector, 9-3. Third cylinder rod, 9-4. Third cylinder rod limit seat, 9-5. Y-axis clamping block, 10. Frame. Detailed Implementation

[0028] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0029] In the description of this utility model, it should be noted that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation of this utility model. The terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0030] This embodiment provides a hydraulic tooling for machining passenger vehicle frames, such as... Figures 1-3As shown, the system includes a base plate 2, a positioning mechanism, a hydraulic mechanism 3, a first hydraulic pipe connector 5, a side fixing mechanism, an air jet pipe 6, and an air pipe connector 7. The positioning mechanism is located on the upper surface of the base plate 2 and is used to support the frame 10 in the Z-axis direction, providing a stable foundation for subsequent processing. The hydraulic mechanism 3 is located on the upper surface of the base plate 2 and is used to press the frame 10 in the Z-axis direction, ensuring the stability and accuracy of the frame 10 during processing. A first through hole is provided at the connection between the base plate 2 and the hydraulic mechanism 3. One end of the first hydraulic pipe connector 5 is connected to the hydraulic mechanism 3, and the other end of the first hydraulic pipe connector 5 extends out of the lower surface of the base plate 2 after passing through the first through hole, facilitating connection with external hydraulic pipes to form a complete hydraulic circuit and achieve precise control of the hydraulic mechanism 3. This design makes the hydraulic pipeline connection more convenient, and the external hydraulic pipe also helps to reduce the length of the hydraulic pipeline inside the base plate, reducing production difficulty, facilitating maintenance, and improving the reliability of the hydraulic system. A side fixing mechanism is installed on the upper surface of the base plate 2. This mechanism secures the frame 10 in the X and Y axes, working in conjunction with the hydraulic mechanism 3's clamping action in the Z axis to form a comprehensive fixing system. This ensures the passenger car frame 10 does not shift or wobble during processing, thus improving machining accuracy. This multi-directional fixing method effectively adapts to passenger car frames 10 of different shapes and sizes, offering strong versatility and flexibility. An air jet pipe 6 is installed on the upper surface of the base plate 2. This pipe is used to spray air onto the frame 10, such as blowing away debris and coolant generated during processing, keeping the frame 10 surface clean, which helps improve machining quality and equipment lifespan. A second through hole is provided at the connection between the base plate 2 and the air jet pipe 6. One end of an air pipe connector 7 connects to the air jet pipe 6, and the other end of the air pipe connector 7 extends out from the lower surface of the base plate 2 through the second through hole. The air pipe connector 7 is used to connect to an air pipe. This design also makes air circuit connection more convenient, reduces the length of the air pipe inside the base plate, not only reduces air pressure loss and improves jetting effect, but also reduces production and maintenance difficulty.

[0031] Compared with existing technologies, this hydraulic tooling features an optimized structural design. In existing technologies, the hydraulic oil circuit and air jet circuit are typically located inside the base plate with long routes, leading to high processing difficulty, high cost, and difficulties in subsequent inspection and maintenance. In contrast, the oil and air circuits of this hydraulic tooling are located outside the tooling, with shorter routes. This not only simplifies the processing technology and reduces production costs but also facilitates routine maintenance and troubleshooting of the oil and air circuits, effectively reducing maintenance time and costs. Furthermore, the shorter oil and air circuits reduce energy loss during hydraulic oil and gas transmission, improving the efficiency of the hydraulic and pneumatic systems, thereby enhancing the overall working efficiency and reliability of the hydraulic tooling.

[0032] As a preferred embodiment, specifically, such as Figures 1-3As shown, the positioning mechanism includes multiple positioning blocks 4, each of which is in contact with the lower surface of the frame 10. The design of multiple positioning blocks 4 provides more stable support, ensuring the frame 10 remains fixed during processing, reducing wobbling and displacement, and thus improving processing accuracy. Simultaneously, the design of multiple positioning blocks 4 also helps to accommodate frames 10 of different shapes and sizes, improving versatility. Furthermore, the contact between the positioning blocks 4 and the lower surface of the frame 10 disperses pressure, reducing the risk of excessive force at a single point and extending the service life of the positioning mechanism. The arrangement of the positioning blocks 4 also simplifies the installation and adjustment process, improves production efficiency, and reduces operational difficulty and cost.

[0033] As a preferred embodiment, specifically, such as Figures 1-3 As shown, there are multiple hydraulic mechanisms 3, distributed along the X-axis of the frame 10. This allows for more even clamping of the frame 10, preventing deformation caused by excessive localized stress. Furthermore, the multiple hydraulic mechanisms 3 can adapt to passenger car frames 10 of different lengths and shapes, greatly improving the tooling's versatility and meeting the processing needs of various vehicle models. Similarly, multiple first hydraulic pipe joints 5 are also provided, the number of which is the same as the number of hydraulic mechanisms 3. Each hydraulic mechanism 3 is connected to one first hydraulic pipe joint 5. This one-to-one correspondence design not only simplifies the wiring structure of the hydraulic lines inside the base plate but also makes the control of the hydraulic system more precise and efficient. Each hydraulic mechanism 3 can be controlled through an individual first hydraulic pipe joint 5, enabling fine adjustment of the clamping force at different positions, further improving processing stability and accuracy. Meanwhile, this distributed design of the first hydraulic pipe joint 5 also facilitates the maintenance and troubleshooting of the hydraulic system. If a problem occurs in a certain hydraulic mechanism, only the corresponding first hydraulic pipe joint 5 needs to be checked and treated, without the need for a comprehensive inspection of the entire hydraulic system. This greatly improves maintenance efficiency, reduces downtime, and lowers maintenance costs. Overall, this distributed design of the hydraulic mechanism 3 and the first hydraulic pipe joint 5 not only improves the functionality and adaptability of the hydraulic tooling but also enhances its reliability and maintainability, providing a strong guarantee for the high-precision machining of the passenger car frame 10.

[0034] like Figures 1-3As shown, the hydraulic mechanism 3 includes a first hydraulic cylinder 3-1, a first cylinder rod 3-2, a connecting rod 3-3, and a pressure head 3-4. The first hydraulic cylinder 3-1 is connected to the upper surface of the base plate 2 and to a first hydraulic pipe connector 5. This arrangement ensures that the hydraulic mechanism 3 is stably mounted on the base plate 2 and can be connected to an external hydraulic system through the first hydraulic pipe connector 5, enabling precise control of the hydraulic mechanism 3. One end of the first cylinder rod 3-2 is connected to the first hydraulic cylinder 3-1, and the other end is connected to the middle of the connecting rod 3-3. This connection method allows the extension and retraction motion of the hydraulic cylinder to be efficiently transmitted to the connecting rod 3-3, thereby driving the pressure head 3-4 to move up and down. Both sides of the lower surface of the connecting rod 3-3 are equipped with pressure heads 3-4. When the pressure heads 3-4 move downward, they can fit against the upper surface of the frame 10. The design of multiple pressure heads 3-4 allows pressure to be applied simultaneously at multiple positions of the frame 10, ensuring the stable fixation of the frame 10 in the Z-axis direction, preventing displacement or shaking during processing, and improving processing accuracy. More preferably, the positioning block 4 corresponds to the position of the pressure heads 3-4. The connecting rod 3-3 has a connecting through hole in the middle. After the upper end of the first cylinder rod 3-2 passes through the connecting through hole, it is fixedly connected to the connecting rod 3-3 by bolts and nuts. This connection method is not only firm and can withstand greater pressure, but also facilitates the disassembly and installation of the connecting rod 3-3, which is beneficial for the maintenance and repair of the hydraulic mechanism 3.

[0035] The side fixing mechanism includes an X-axis fixing mechanism 8 and a Y-axis fixing mechanism 9. The X-axis fixing mechanism 8 is used to fix the frame 10 in the X-axis direction, and the Y-axis fixing mechanism 9 is used to fix the frame 10 in the Y-axis direction. The X-axis fixing mechanism 8 and the Y-axis fixing mechanism 9 work together to fix the frame 10 in all directions, ensuring that the frame 10 will not shift or shake during processing, thereby improving processing accuracy.

[0036] like Figures 1-3 As shown, the X-axis fixing mechanism 8 includes a second hydraulic cylinder 8-1, a second hydraulic pipe connector 8-2, a second cylinder rod 8-3, a second cylinder rod limiting seat 8-4, and an X-axis clamping block 8-5. The second hydraulic cylinder 8-1 is connected to the upper surface of the base plate 2. This design ensures the stability and reliability of the X-axis fixing mechanism 8, providing a solid foundation for subsequent fixing operations. A third through hole is provided at the connection between the base plate 2 and the second hydraulic cylinder 8-1. One end of the second hydraulic pipe connector 8-2 is connected to the second hydraulic cylinder 8-1, as shown... Figure 3As shown, the other end of the second hydraulic pipe connector 8-2 passes through the third through hole and extends out of the lower surface of the base plate 2. The second hydraulic pipe connector 8-2 is used to connect with the hydraulic pipe. This design facilitates connection with external hydraulic pipes to form a complete hydraulic circuit. It not only simplifies the connection of hydraulic pipes, but also makes the control of the hydraulic system more precise and efficient. It can also reduce the length of the oil circuit inside the base plate and reduce the difficulty of production and maintenance. One end of the second cylinder rod 8-3 is connected to the second hydraulic cylinder 8-1, and the second cylinder rod limiting seat 8-4 is connected to the upper surface of the base plate 2. The second cylinder rod limiting seat 8-4 has a through hole, and the other end of the second cylinder rod 8-3 passes through the through hole and abuts against one end of the frame 10. In this way, one end of the frame 10 in the X-axis direction can be stably and reliably fixed to prevent displacement during processing. The X-axis clamping block 8-5 is connected to the upper surface of the base plate 2 and abuts against the other end of the frame 10, cooperating with the second cylinder rod 8-3 to form a bidirectional fixation of the frame 10 in the X-axis direction. This bidirectional fixing method can effectively prevent the frame 10 from shaking and displacing in the X-axis direction, improving processing accuracy. At the same time, the design of the X-axis clamping block 8-5 can be adjusted according to the size of different frames 10, which has good adaptability and flexibility.

[0037] There are multiple Y-axis fixing mechanisms 9, and these mechanisms are distributed along the X-axis direction of the frame 10. This layout ensures that the frame 10 receives a uniform and stable fixing force in the Y-axis direction, effectively preventing lateral displacement or swaying of the frame 10 during processing, thereby significantly improving processing stability and accuracy. Figures 1-3 As shown, the Y-axis fixing mechanism 9 includes a third hydraulic cylinder 9-1, a third hydraulic pipe connector 9-2, a third cylinder rod 9-3, a third cylinder rod limiting seat 9-4, and a Y-axis clamping block 9-5. The third hydraulic cylinder 9-1 is connected to the upper surface of the base plate 2. A fourth through hole is provided at the connection between the base plate 2 and the third hydraulic cylinder 9-1. One end of the third hydraulic pipe connector 9-2 is connected to the third hydraulic cylinder 9-1. Figure 3As shown, the other end of the third hydraulic pipe connector 9-2 passes through the fourth through hole and extends out of the lower surface of the base plate 2. The third hydraulic pipe connector 9-2 is used to connect with hydraulic pipes, facilitating connection with external hydraulic pipes to form a complete hydraulic circuit. This design not only simplifies the connection of hydraulic pipes but also makes the control of the hydraulic system more precise and efficient. Furthermore, it reduces the length of the oil circuit inside the base plate, lowering the difficulty of production and maintenance. One end of the third cylinder rod 9-3 is connected to the third hydraulic cylinder 9-1, and the third cylinder rod limiting seat 9-4 is connected to the upper surface of the base plate 2. The third cylinder rod limiting seat 9-4 has a through hole, and the other end of the third cylinder rod 9-3 passes through the through hole and abuts against one side of the frame 10. The Y-axis clamping block 9-5 is connected to the upper surface of the base plate 2 and abuts against the other side of the frame 10. The position of the Y-axis clamping block 9-5 corresponds to the position of the third cylinder rod 9-3. This design forms a bidirectional fixation of the frame 10 in the Y-axis direction, effectively preventing the frame 10 from shaking and displacing in the Y-axis direction and improving machining accuracy. At the same time, the Y-axis clamping block 9-5 can be adjusted according to the size of different frames 10, which has good adaptability and flexibility. Multiple Y-axis fixing mechanisms 9 are distributed along the X-axis direction of the frame 10, enabling uniform fixing at different positions of the frame 10 and enhancing the fixing effect. This is particularly suitable for long frames 10, ensuring the stability of the entire frame 10 in the Y-axis direction. This distribution design also adapts to frames 10 of different shapes and sizes, improving the versatility and applicability of the tooling. In summary, this design of the Y-axis fixing mechanism 9, through the uniform distribution of multiple fixing points and bidirectional fixing, not only improves the stability of the frame 10 in the Y-axis direction but also enhances the adaptability and reliability of the equipment, providing a strong guarantee for the high-precision machining of passenger car frames 10.

[0038] A base 1 is provided at the lower end of the base plate 2. The base 1 can absorb and disperse vibrations generated during processing, reduce the impact of vibrations on processing accuracy, and ensure the smooth progress of processing. The base 1 can prevent the tooling from shifting during processing. By bearing most of the load and stress, the base 1 can effectively protect the base plate 2 and other upper structures, avoiding deformation or damage caused by excessive force, thereby extending the service life of the entire equipment. The base 1 can be designed and adjusted according to the actual working environment and processing requirements. For example, on uneven ground, the base 1 can be adjusted to adapt to the ground conditions to ensure the stable placement of the tooling.

[0039] The hydraulic tooling for processing passenger vehicle frames according to this utility model includes the following steps in use:

[0040] S1. Place the frame 10 smoothly and accurately on the positioning block 4 fixed on the base plate 2. The positioning block 4 is in close contact with the lower surface of the frame 10, thereby initially positioning the frame 10 in the Z-axis direction and providing a basis for subsequent clamping operations.

[0041] S2. Activate the second hydraulic cylinder 8-1 and the third hydraulic cylinder 9-1, causing the second cylinder rod 8-3 and the third cylinder rod 9-3 to extend and clamp the frame 10 in the X-axis and Y-axis directions, respectively. In this way, the frame 10 is reliably fixed in all directions on the horizontal plane, preventing it from shifting or shaking on the horizontal plane during processing.

[0042] S3. After ensuring the frame 10 is fixed horizontally, the first hydraulic cylinder 3-1 is activated, causing its first cylinder rod 3-2 to retract. The pressure head 3-4, connected to the first cylinder rod 3-2, moves downwards and comes into contact with the upper surface of the frame 10, thereby firmly fixing the frame 10 vertically and further enhancing the stability of the frame 10 during processing. Figure 4 As shown.

[0043] S4. While machining the frame 10, activate the air jet pipe 6. The air jet pipe 6 will spray gas to promptly blow away debris and dust generated during machining. This not only helps keep the machining area clean and improves machining accuracy, but also reduces wear and tear on the equipment caused by debris, extending the equipment's service life.

[0044] S5. After machining, perform the unloading operation. First, the first cylinder rod 3-2 moves upward, causing the pressure head 3-4 to move away from the upper surface of the frame 10, releasing the frame 10 from vertical fixation. Then, the second cylinder rod 8-3 and the third cylinder rod 9-3 retract, releasing the frame 10 from X-axis and Y-axis fixation respectively. Finally, the machined frame 10 is smoothly removed from the fixture, completing the entire machining process.

[0045] During this process, the various mechanisms of the tooling work together to achieve precise fixing and rapid unloading of the frame 10 in all directions, which greatly improves the efficiency and quality of frame 10 processing, and also provides operators with a convenient operating method.

[0046] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A hydraulic tooling for passenger car frame machining, characterized in that, include Base plate (2); A positioning mechanism is disposed on the upper surface of the base plate (2) and is used to support the frame (10) in the Z-axis direction. Hydraulic mechanism (3) is disposed on the upper surface of the base plate (2) and is used to press the frame (10) in the Z-axis direction. The first hydraulic pipe connector (5) is provided with a first through hole at the connection between the base plate (2) and the hydraulic mechanism (3). One end of the first hydraulic pipe connector (5) is connected to the hydraulic mechanism (3), and the other end of the first hydraulic pipe connector (5) extends out of the lower surface of the base plate (2) after passing through the first through hole. The first hydraulic pipe connector (5) is used to connect with the hydraulic pipe. A side fixing mechanism is provided on the upper surface of the base plate (2) and is used to fix the frame (10) in the X-axis direction and the Y-axis direction. A jet pipe (6) is disposed on the upper surface of the base plate (2) and is used to spray air onto the frame (10); The air pipe connector (7) has a second through hole at the connection between the base plate (2) and the jet pipe (6). One end of the air pipe connector (7) is connected to the jet pipe (6), and the other end of the air pipe connector (7) extends out of the lower surface of the base plate (2) after passing through the second through hole. The air pipe connector (7) is used to connect with the air pipe.

2. A hydraulic tooling for machining of a passenger car frame as claimed in claim 1, wherein, The positioning mechanism includes multiple positioning blocks (4), each of which is in contact with the lower surface of the frame (10).

3. The hydraulic tooling for machining of passenger car frames as claimed in claim 1 wherein, There are multiple hydraulic mechanisms (3), and the multiple hydraulic mechanisms (3) are distributed along the X-axis direction of the frame (10).

4. The hydraulic tooling for machining of passenger car frames as claimed in claim 1 wherein, The hydraulic mechanism (3) includes a first hydraulic cylinder (3-1), a first cylinder rod (3-2), a connecting rod (3-3), and a pressure head (3-4). The first hydraulic cylinder (3-1) is connected to the upper surface of the base plate (2) and to the first hydraulic pipe joint (5). One end of the first cylinder rod (3-2) is connected to the first hydraulic cylinder (3-1), and the other end of the first cylinder rod (3-2) is connected to the middle of the connecting rod (3-3). The pressure head (3-4) is provided on both sides of the lower surface of the connecting rod (3-3). When the pressure head (3-4) moves downward, it can fit against the upper surface of the frame (10).

5. A hydraulic tooling for machining of a passenger car frame as claimed in claim 4, wherein, The connecting rod (3-3) has a connecting through hole in the middle. After the upper end of the first cylinder rod (3-2) passes through the connecting through hole, it is fixedly connected to the connecting rod (3-3) by bolts and nuts.

6. A hydraulic tooling for machining of passenger car frames as claimed in claim 1, wherein, The side fixing mechanism includes an X-axis fixing mechanism (8) and a Y-axis fixing mechanism (9). The X-axis fixing mechanism (8) is used to fix the frame (10) in the X-axis direction, and the Y-axis fixing mechanism (9) is used to fix the frame (10) in the Y-axis direction.

7. A hydraulic tooling for machining of a passenger car frame as claimed in claim 6, wherein, The X-axis fixing mechanism (8) includes a second hydraulic cylinder (8-1), a second hydraulic pipe connector (8-2), a second cylinder rod (8-3), a second cylinder rod limiting seat (8-4), and an X-axis clamping block (8-5). The second hydraulic cylinder (8-1) is connected to the upper surface of the base plate (2). A third through hole is provided at the connection between the base plate (2) and the second hydraulic cylinder (8-1). One end of the second hydraulic pipe connector (8-2) is connected to the second hydraulic cylinder (8-1), and the other end of the second hydraulic pipe connector (8-2) extends out through the third through hole. On the lower surface of the base plate (2), the second hydraulic pipe connector (8-2) is used to connect to the hydraulic pipe. One end of the second cylinder rod (8-3) is connected to the second hydraulic cylinder (8-1). The second cylinder rod limiting seat (8-4) is connected to the upper surface of the base plate (2). The second cylinder rod limiting seat (8-4) is provided with a through hole. The other end of the second cylinder rod (8-3) passes through the through hole and abuts against one end of the frame (10). The X-axis clamping block (8-5) is connected to the upper surface of the base plate (2). The X-axis clamping block (8-5) abuts against the other end of the frame (10).

8. A hydraulic tooling for machining of a passenger car frame as claimed in claim 6, wherein, There are multiple Y-axis fixing mechanisms (9), and the multiple Y-axis fixing mechanisms (9) are distributed along the X-axis direction of the frame (10).

9. A hydraulic tooling for machining of passenger car frames as claimed in claim 6 wherein, The Y-axis fixing mechanism (9) includes a third hydraulic cylinder (9-1), a third hydraulic pipe connector (9-2), a third cylinder rod (9-3), a third cylinder rod limiting seat (9-4), and a Y-axis clamping block (9-5). The third hydraulic cylinder (9-1) is connected to the upper surface of the base plate (2). A fourth through hole is provided at the connection between the base plate (2) and the third hydraulic cylinder (9-1). One end of the third hydraulic pipe connector (9-2) is connected to the third hydraulic cylinder (9-1), and the other end of the third hydraulic pipe connector (9-2) extends out of the lower surface of the base plate (2) after passing through the fourth through hole. The head (9-2) is used to connect to the hydraulic pipe. One end of the third cylinder rod (9-3) is connected to the third hydraulic cylinder (9-1). The third cylinder rod limiting seat (9-4) is connected to the upper surface of the base plate (2). The third cylinder rod limiting seat (9-4) is provided with a through hole. The other end of the third cylinder rod (9-3) passes through the through hole and abuts against one side of the frame (10). The Y-axis clamping block (9-5) is connected to the upper surface of the base plate (2). The Y-axis clamping block (9-5) abuts against the other side of the frame (10), and the position of the Y-axis clamping block (9-5) corresponds to the position of the third cylinder rod (9-3).

10. The hydraulic tooling for machining of passenger car frames as set forth in claim 1, characterized in that, The bottom of the base plate (2) is provided with a base (1).

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