Pre-pressing mechanism, pre-pressing tool and pre-pressing system

Abstract

The utility model provides a prepressing mechanism, prepressing tooling and prepressing system.The prepressing mechanism is used for pressing a valve on an external carrier and comprises a pressing rod, an abutting block arranged in the pressing rod in a sliding mode and a first elastic piece connected between the abutting block and the pressing rod in an abutting mode; the pressing rod is provided with an inserting cavity with an opening in one end, the abutting block is arranged in the inserting cavity, the end, close to the opening, of the abutting block is provided with an abutting face, the valve can enter the inserting cavity and abut against the abutting face, and under abutting of the abutting face, the valve can be pressed at the preset position of the external carrier through the pressing rod. According to the pre-pressing mechanism, the valve piece can abut against the abutting face of the abutting block after entering the inserting cavity, and under abutting of the abutting face, the valve piece can be pressed at the preset position of the external carrier through the pressing rod, so that the valve piece is prevented from inclining in the press-fitting process, and the press-fitting effect of the valve piece is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of press-fitting equipment, and in particular to a pre-pressing mechanism. At the same time, the utility model also relates to a pre-pressing tool equipped with the pre-pressing mechanism, and a pre-pressing system equipped with the pre-pressing tool. Background Art

[0002] Currently, when installing a valve component on an external carrier, it is necessary to pre-install the valve component into the corresponding installation space on the external carrier and make the valve component in a vertical state, and then use the pressure rod in the pre-pressing mechanism to press the valve component down, so as to press the valve component into the installation position of the external carrier.

[0003] Taking the HCU (Hydraulic Control Unit) on the vehicle as an example, the valve components installed on it include multiple solenoid valves such as pressure supply valve, simulation valve, decoupling valve, boost valve, diagnostic valve, and pressure relief valve. The HCU controls the normally open / normally closed state of the solenoid valve through the electrical signal of the ECU (Electronic Control Unit), thereby realizing the control of the HCU oil circuit and achieving the effect of assisting the braking of the vehicle.

[0004] However, during the process of the pressure rod pressing the valve components, the valve components are easily unable to remain in a vertical state due to inclination, resulting in the pressure rod being unable to press the valve components onto the external carrier, causing the valve components to fail in pre-compression, thereby affecting the installation effect of the valve components and the performance of the HCU. Utility Model Content

[0005] In view of this, the utility model aims to provide a pre-pressing mechanism to solve the problem that the valve component is easy to tilt during the press-fitting process, thereby improving the press-fitting effect of the valve component on the external carrier.

[0006] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0007] A pre-pressing mechanism, used for press-fitting a valve member onto an external carrier, the pre-pressing mechanism comprising a pressing rod, an abutting block slidably arranged in the pressing rod, and a first elastic member abutting between the abutting block and the pressing rod;

[0008] The pressure rod has an insertion cavity with an opening at one end, the abutment block is arranged in the insertion cavity, and the abutment block has an abutment surface at one end close to the opening, the valve component can enter the insertion cavity and abut against the abutment surface, and under the abutment of the abutment surface, the valve component can be pressed by the pressure rod at a preset position of the external carrier.

[0009] Furthermore, a limiting portion is provided on the pressure rod, and the limiting portion is used to limit the abutment block from escaping from the insertion cavity.

[0010] Furthermore, the limiting portion includes a top screw threadedly connected to the pressure rod, one end of the top screw extends into the insertion cavity and is blocked on one side of the abutment block.

[0011] Further, the abutting surface is a plane, and the end surface of the end of the valve member entering the insertion cavity is a plane adapted to the abutting surface; and / or,

[0012] The pressure rod includes a cylinder part and a rod part arranged at one end of the cylinder part, and the outer diameter of the cylinder part is larger than the rod part. The insertion cavity is arranged on the cylinder part, and the rod part is used to bear external driving force.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] The pre-pressing mechanism described in the utility model, by setting an insertion cavity in the pressure rod, and slidingly setting an abutment block in the insertion cavity, and providing a first elastic member between the abutment block and the pressure rod, can enable the valve member to abut against the abutment surface after entering the insertion cavity, and under the abutment of the abutment surface, the valve member can be pressed by the pressure rod at a preset position of the external carrier, which is beneficial to prevent the valve member from tilting during the pressing process, and further beneficial to improving the pressing effect of the valve member.

[0015] In addition, the setting of the limiting part is helpful to prevent the abutment block from falling out of the insertion cavity, thereby helping to improve the stability of the use of the pressure rod. The structure of the top screw in the limiting part is simple, easy to arrange and install, and has a good limiting effect. At the same time, the top screw is also easy to disassemble on the pressure rod, which is convenient for the installation and disassembly of the abutment block. The abutment surface and the end face of the valve member are planes that match the abutment surface, which is helpful to improve the straightening effect of the valve member; the setting of the cylinder part and the rod part is not only simple in structure, easy to form the insertion cavity, but also helpful to improve the use effect of the pressure rod.

[0016] In addition, another object of the present invention is to provide a pre-pressing tool, comprising a tool body and the pre-pressing mechanism as described above, wherein the pressure rod is slidably disposed on the tool body, and a second elastic member is abutted between the pressure rod and the tool body.

[0017] Furthermore, the pressure rod is detachably arranged on the tool body.

[0018] Furthermore, the tool body has an installation cavity with two open ends, and a limit block arranged in the installation cavity;

[0019] The pressure rod is arranged in the installation cavity and penetrates the limit block, and a limit piece is screwed on the pressure rod. The second elastic piece abuts between the limit block and the limit piece, and a retaining spring is clamped in the installation cavity. The retaining spring can abut against the limit piece to limit the pressure rod from escaping from the installation cavity.

[0020] Furthermore, a plurality of the pre-pressing mechanisms are provided on the tool body.

[0021] Compared with the prior art, the utility model has the following advantages:

[0022] The pre-pressing tooling of the utility model is beneficial to improving the press-fitting effect of the pressure rod on the valve member by slidably arranging the pressure rod on the tooling body and arranging a second elastic member between the pressure rod and the tooling body, and has good practicality.

[0023] In addition, the pressure rod can be detachably mounted on the tool body, which is convenient for replacement and maintenance of the pressure rod. The setting of the limiter and the retaining spring is convenient for preventing the pressure rod from falling out of the tool body. The setting of multiple pre-pressing tools on the tool body is convenient for press-fitting multiple valve parts, thereby improving the versatility of the pre-pressing tool.

[0024] In addition, the utility model also provides a pre-pressing system, including a frame, a pressing part and a moving part arranged on the frame, and the pre-pressing tooling as described above;

[0025] The moving part is used to move the external carrier pre-installed with the valve component to the bottom of the pressing part, and the pre-pressing tool can be moved to be placed above the external carrier. The pressing part can drive the pressing rod to move downward and press the valve component at a preset position of the external carrier.

[0026] Furthermore, a lifting part is provided on the frame, and a gripping mechanism is provided at the free end of the lifting part. The gripping mechanism is used to grip the pre-pressing tooling, and under the drive of the lifting part, the pre-pressing tooling can be placed on the external carrier or removed from the external carrier.

[0027] The pre-pressing system described in the utility model moves the external carrier pre-installed with the valve component to the bottom of the pressing part through the moving part, and the pre-pressing tooling is moved to be placed above the external carrier. The pressing part can drive the pressing rod to move downward, thereby facilitating the pressing of the valve component to the preset position of the external carrier, thereby facilitating the pressing of the valve component to the improved pressing effect.

[0028] In addition, by providing a grabbing structure, the pre-pressing tool can be placed on the external carrier, or removed from the external carrier, thereby facilitating the placement and taking of the valve component on the rack. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0030] Figure 1 This is a structural schematic diagram of the pre-pressing mechanism described in Example 1 of the utility model;

[0031] Figure 2 for Figure 1 AA direction section view;

[0032] Figure 3 It is a top view of the pre-pressing tooling described in the second embodiment of the utility model;

[0033] Figure 4 It is a front view of the pre-pressing tooling described in the second embodiment of the utility model;

[0034] Figure 5 for Figure 4 BB direction cross-sectional view;

[0035] Figure 6 This is a schematic diagram of the structure in which a plurality of solenoid valves according to the second embodiment of the present utility model are pre-installed on an external carrier;

[0036] Figure 7 It is a structural schematic diagram of the preloading system described in the third embodiment of the utility model at one viewing angle;

[0037] Figure 8 It is a structural schematic diagram of the preloading system described in an embodiment of the utility model at one viewing angle.

[0038] Description of reference numerals:

[0039] 1. External carrier; 2. Valve; 3. Pressure rod; 4. Tool body; 5. Frame; 6. Servo press; 7. Slide;

[0040] 201, pressure-bearing surface;

[0041] 300, inserting cavity; 301, rod body; 302, barrel body; 303, second elastic member; 304, stopper; 305, flange; 306, top screw; 307, first elastic member; 308, abutment block; 309, first protrusion; 310, second protrusion; 311, abutment surface; 312, stopper; 313, retaining spring;

[0042] 401, Part I; 402, Part II;

[0043] 501, first linear module; 502, first mounting seat; 503, second linear module; 504, first driving cylinder; 505, second driving cylinder; 506, second mounting seat;

[0044] 601, pressure head;

[0045] 701. A third mounting seat; 702. A clamping claw. DETAILED DESCRIPTION

[0046] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0047] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0048] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installation", "connection", "connection", and "connector" should be understood in a broad sense. For example, it 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0049] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0050] Embodiment 1

[0051] This embodiment relates to a pre-pressing mechanism for press-fitting a valve member 2 onto an external carrier 1. In terms of overall structure, the pre-pressing mechanism comprises a pressing rod 3, an abutting block 308 slidably disposed in the pressing rod 3, and a first elastic member 307 abutting between the abutting block 308 and the pressing rod 3.

[0052] The pressure rod 3 has an insert cavity 300 with an opening at one end, the abutment block 308 is disposed in the insert cavity 300, and the abutment block 308 is provided with an abutment surface 311 at one end close to the opening, and the valve member 2 can enter the insert cavity 300 and abut against the abutment surface 311. Under the abutment of the abutment surface 311, the valve member 2 can be pressed by the pressure rod 3 at a preset position of the external carrier 1.

[0053] The pre-pressing mechanism of the present embodiment is configured by setting an inserting cavity 300 in the pressure rod 3, and slidingly setting an abutment block 308 in the inserting cavity 300, and providing a first elastic member 307 between the abutment block 308 and the pressure rod 3, so that the valve member 2 can abut against the abutment surface 311 after entering the inserting cavity 300, and under the abutment of the abutment surface 311, the valve member 2 can be press-fitted by the pressure rod 3 at a preset position of the external carrier 1, thereby preventing the valve member 2 from tilting during the press-fitting process, and further helping to improve the press-fitting accuracy of the valve member 2.

[0054] Based on the above overall introduction, an exemplary structure of the pre-pressing mechanism in this embodiment is as follows: Figure 1 and Figure 2 As shown in . In this embodiment, the external carrier 1 may be an HCU on a vehicle, the valve component 2 may be an electromagnetic valve such as a pressure supply valve, a simulation valve, a decoupling valve, a boost valve, a diagnostic valve or a pressure relief valve, and the pre-pressurization mechanism is used to press the electromagnetic valve onto the main body of the HCU. Of course, the valve component 2 may be other valve products in addition to the electromagnetic valve.

[0055] In this embodiment, the solenoid valve is vertically mounted in the installation space on the external carrier 1 before being mounted by the pressure rod 3. The top of the solenoid valve has a columnar portion that can be inserted into the insertion cavity 300, and the outer periphery of the solenoid valve has a pressure-bearing surface 201 for receiving the pressure of the end face of the pressure rod 3.

[0056] As a preferred embodiment, the pressure rod 3 in this embodiment includes a barrel portion 302 and a rod portion 301 disposed at one end of the barrel portion 302, and the outer diameter of the barrel portion 302 is larger than that of the rod portion 301, the insertion cavity 300 is disposed on the barrel portion 302, and the rod portion 301 is used to receive an external driving force. The barrel portion 302 and the rod portion 301 of the pressure rod 3 are preferably integrally formed, which is conducive to the forming of the insertion cavity 300 and to improving the processing and assembly effects.

[0057] like Figure 2 As shown in , the abutment block 308 is columnar, and the specifications of its cross section are adapted to the cross section of the insertion cavity 300. Through the abutment between the outer periphery of the abutment block 308 and the inner wall of the insertion cavity 300, the abutment block 308 can slide along the axial direction of the insertion cavity 300, and has good sliding stability. The above-mentioned first elastic member 307 is a first spring provided between the abutment block 308 and the bottom of the insertion cavity 300. Among them, a protruding first protrusion 309 is provided on the end face of the abutment block 308 facing the bottom of the insertion cavity 300. The first protrusion 309 is columnar, and its diameter is smaller than the diameter of the abutment block 308. The end of the first spring is sleeved outside the first protrusion 309, which is conducive to improving the stability of the first spring in use.

[0058] As a preferred embodiment, a limiting portion is provided on the pressure rod 3, and the limiting portion is used to limit the abutment block 308 from being disengaged from the insertion cavity 300. Here, the limiting portion is provided to prevent the abutment block 308 from being disengaged from the insertion cavity 300, thereby facilitating the use stability of the abutment block 308. As a structural example of the limiting portion, the limiting portion of this embodiment includes a top screw 306 screwed on the pressure rod 3, one end of the top screw 306 extends into the insertion cavity 300, and is blocked on one side of the abutment block 308.

[0059] In terms of detailed structure, Figure 2 As shown in , a threaded hole is provided on the outer periphery of the top of the cylindrical part 302 and is radially penetrated by the insertion cavity 300. The top screw 306 is screwed to the threaded hole, so that one end of the top screw 306 is located in the insertion cavity 300, so as to be blocked below the abutment block 308, thereby limiting the abutment block 308 from being disengaged from the insertion cavity 300. Furthermore, there are two threaded holes arranged opposite to each other, and each threaded hole is screwed with a top screw 306, which is conducive to improving the use stability and reliability of the limiting part. In this embodiment, the top screw 306 has a simple structure, is easy to arrange for press-fitting, and has a good limiting effect. At the same time, the top screw 306 is also easy to disassemble on the pressure rod 3, thereby facilitating the installation and disassembly of the abutment block 308.

[0060] In addition, relative to the first protrusion 309, a second protrusion 310 is provided at the other end of the abutment block 308. The second protrusion 310 is also columnar, and its diameter is also smaller than the diameter of the abutment block 308. The abutment surface 311 is specifically the end surface of the second protrusion 310. The top end of the columnar part of the solenoid valve is in contact with the abutment surface 311, and can pass through between the two top screws 306 to drive the abutment block 308 to slide upward.

[0061] In this embodiment, the second protrusion 310 has a simple structure, is easy to shape, and has a good use effect. It is understandable that in addition to the top screw 306, the limiting portion in this embodiment can also use other structures that can limit the abutment block 308 as long as the use requirements are met.

[0062] As a preferred embodiment, Figure 2 As shown in , the abutment surface 311 in this embodiment is a plane, and the end surface of the valve member 2 that enters the insertion cavity 300 is a plane adapted to the abutment surface 311. That is to say, the end surface of the top of the columnar part is also a plane, so that the abutment between the abutment surface 311 and the corresponding plane of the columnar part on the solenoid valve prevents the solenoid valve from tilting relative to the abutment surface 311, so that the solenoid valve can move downward in a vertical posture and be pressed into the external carrier 1, thereby solving the problem of the solenoid valve tilting during the press-fitting process, thereby facilitating improving the straightening effect of the pressure rod 3 on the solenoid valve.

[0063] When the pre-pressing mechanism in this embodiment is in use, the rod body part 301 moves downward under the drive of external force. As the top of the solenoid valve is inserted into the insertion cavity 300, the top surface of the solenoid valve can abut against the abutment surface 311 on the second protrusion 310 in the abutment block 308, and the first spring is compressed by the columnar part of the solenoid valve pushing the abutment block 308 until the pressure rod 3 abuts against the pressure-bearing surface 201 on the solenoid valve, at which time the abutment block 308 stops sliding upward. Finally, the pressure rod 3 presses down the pressure-bearing surface 201 of the solenoid valve, and the solenoid valve can be pressed into the preset position of the external carrier 1 in a vertical state.

[0064] The pre-pressing mechanism of this embodiment, by providing the abutment block 308, the limiting portion and the first elastic member 307, helps to ensure that the valve component 2 remains in a vertical state during the press-fitting process and is not prone to tilting, thereby helping to improve the press-fitting effect of the valve component 2 on the external carrier 1.

[0065] Embodiment 2

[0066] The present embodiment relates to a pre-pressing tool. In terms of overall structure, the pre-pressing tool comprises a tool body 4 and the pre-pressing mechanism in the first embodiment, and a pressure rod 3 is slidably arranged on the tool body 4, and a second elastic member 303 is abutted between the pressure rod 3 and the tool body 4.

[0067] An exemplary structure of the pre-pressing tool in this embodiment is as follows Figures 3 to 5 In order to facilitate maintenance and replacement of the pressure rod 3, the pressure rod 3 in this embodiment is detachably mounted on the tool body 4. The detachable mounting method of the pressure rod 3 on the tool body 4 here is also convenient for cleaning aluminum chips generated during the use of the pressure rod 3, thereby ensuring the use effect of the pressure rod 3.

[0068] Preferably, the tool body 4 has an installation cavity with two open ends and a limit block 312 arranged in the installation cavity. The pressure rod 3 is arranged in the installation cavity and penetrates the limit block 312, and the limit member 304 is screwed on the pressure rod 3, the second elastic member 303 abuts between the limit block 312 and the limit member 304, and a clamping spring 313 is clamped in the installation cavity, and the clamping spring 313 can abut against the limit member 304 to limit the pressure rod 3 from escaping from the installation cavity.

[0069] In detail, Figure 5 As shown in the figure, the limit block 312 in this embodiment is arranged on the tool body 4 along the inner peripheral wall of the installation cavity. In this way, the limit block 312 can be blocked at the top of the cylinder part 302, thereby limiting the upward movement of the cylinder part 302. The arrangement of the limit member 304 and the retaining spring 313, as well as the limit block 312 in this embodiment, is conducive to preventing the pressure rod 3 from escaping from the installation cavity, and by arranging the second elastic member 303, it is conducive to improving the stability of the valve member 2 in the process of being pressed into the external carrier 1, thereby improving the press-fitting effect of the solenoid valve.

[0070] Specifically, the stopper 304 is a nut screwed on the top of the rod body 301, and the outer periphery of the stopper 304 is provided with a radially outwardly protruding flange 305. The clamping spring 313 is clamped on the top of the installation cavity and can abut against the top surface of the flange 305, thereby preventing the pressure rod 3 from sliding upward and falling out of the installation cavity. The second elastic member 303 is specifically sleeved on the rod body 301 and is located between the stopper 304 and the stopper block 312.

[0071] When the pressure rod 3 needs to be disassembled, first release the limit of the flange 305 on the limit member 304 by the retaining spring 313, and then remove the limit member 304 from the pressure rod 3. At this time, the pressure rod 3 can be released from the bottom of the installation cavity under the action of gravity, thereby completing the disassembly of the pressure rod 3 on the tooling body 4.

[0072] Combination Figure 4 and Figure 5 As shown in , the tool body 4 in this embodiment includes a first part 401 and a second part 402 arranged up and down, and the first part 401 and the second part 402 are connected together by bolts and nuts passing through the two. The bottom of the installation cavity is arranged on the second part 402, and the rest of the parts are arranged on the first part 401. The arrangement of the first part 401 and the second part 402 here also facilitates the disassembly and maintenance of the pressure rod 3.

[0073] like Figure 3 As shown in , a plurality of pre-pressing mechanisms are provided on the tool body 4. The specifications of the pressure rods 3 in each pre-pressing mechanism may be the same or different. This is conducive to press-fitting of valve components 2 of different models, such as solenoid valves, so as to have good flexibility and versatility in use. In addition, the provision of a plurality of pre-pressing mechanisms is also conducive to installing a plurality of valve components 2 on the same external carrier 1, thereby improving the press-fitting efficiency and press-fitting effect of the valve components 2.

[0074] like Figure 6 As shown in , the external carrier 1 in this embodiment can still be the HCU described in Example 1, and the valve component 2 can still be a solenoid valve such as a pressure supply valve, a simulation valve, a decoupling valve, a boost valve, a diagnostic valve, and a pressure relief valve for installation on the HCU body. Each solenoid valve has been pre-installed on the HCU body, and the pre-pressing tooling is used to press each solenoid valve separately on the HCU body.

[0075] The pre-pressing tool of this embodiment is advantageous in improving the press-fitting effect of the pressure rod 3 on the valve member 2 by slidably setting the pressure rod 3 on the tool body 4 and arranging a second elastic member 303 between the pressure rod 3 and the tool body 4, and has good practicality.

[0076] Embodiment 3

[0077] This embodiment relates to a pre-pressing system, comprising a frame 5, a press-fitting part and a moving part arranged on the frame 5, and the pre-pressing tooling described in the second embodiment. The moving part is used to move the external carrier 1 pre-installed with the valve component 2 to the bottom of the press-fitting part, the pre-pressing tooling can be placed above the external carrier 1, and the press-fitting part can drive the pressing rod 3 to move downward and press-fit the valve component 2 at a preset position of the external carrier 1.

[0078] The pre-pressing system of this embodiment moves the external carrier 1 pre-installed with the valve component 2 to the bottom of the pressing part through the moving part. The pre-pressing tooling is moved to be placed above the external carrier 1. The pressing part can drive the pressing rod 3 to move downward, thereby facilitating the pressing of the valve component 2 at a preset position of the external carrier 1, thereby facilitating the pressing of the valve component 2. This helps to improve the pressing effect of the valve component 2.

[0079] In terms of specific structure, Figure 7 and Figure 8 As shown in , the press-fitting part includes a servo press 6 disposed on a frame 5, and a press head 601 connected to the power output end of the servo press 6. The press head 601 can abut against the top of the pressure rod 3 and apply a downward press-fitting force to the pressure rod 3, thereby press-fitting the valve member 2 onto the external carrier 1. Here, the arrangement of the servo press 6 and the press head 601 is conducive to cooperation with the pressure rod 3, thereby improving the press-fitting effect on the valve member 2.

[0080] The moving part in this embodiment includes a first linear module 501 extending along the length direction of the frame 5, a first mounting seat 502 slidably disposed on the first linear module 501, a second linear module 503 disposed on the first mounting seat 502 and extending along the width direction of the frame 5, and a second mounting seat 506 slidably disposed on the second linear module 503. The first linear module 501 extends along the length direction of the frame 5, and the second linear module 503 extends along the width direction of the frame 5.

[0081] In addition, the frame 5 is also provided with a first driving cylinder 504 for driving the first mounting seat 502 to slide on the first linear module 501 , and a second driving cylinder 505 for driving the second mounting seat 506 to slide on the second linear module 503 .

[0082] The external carrier 1 in this embodiment is positioned and mounted on the second mounting seat 506. By moving the second mounting seat 506 on the second linear module 503, the position of the external carrier 1 in the width direction of the frame 5 can be adjusted. And by moving the first mounting seat 502 on the first linear module 501, the position of the external carrier 1 in the length direction of the frame 5 can be adjusted, so as to facilitate moving the external carrier 1 to the bottom of the press-fitting portion.

[0083] Still Figure 6As shown in , the external carrier 1 in this embodiment is still the HCU mentioned in the first embodiment, and the valve component 2 is a solenoid valve such as a pressure supply valve, a simulation valve, a decoupling valve, a boost valve, a diagnostic valve, and a pressure relief valve. Each solenoid valve has been pre-installed on the main body of the HCU, and the pre-pressurization system is used to press-fit each solenoid valve on the main body of the HCU one by one.

[0084] In a specific implementation, a plurality of first positioning holes are provided on the external carrier 1, and first positioning columns corresponding to the first positioning holes are provided on the tool body 4. The pre-pressing tool can be positioned on the external carrier 1 by inserting the first positioning columns in the first positioning holes. The pre-pressing tool can be positioned and placed on the external carrier 1, and can be moved synchronously with the external carrier 1 through the second mounting seat 506. In the positioning state, each pressure rod 3 is corresponding to each solenoid valve, and the top of each solenoid valve is inserted into the corresponding insertion cavity 300.

[0085] In addition, to facilitate the removal of the pre-pressing tooling, in this embodiment, a lifting portion is provided on the frame 5, and a gripping mechanism is provided at the lifting end of the lifting portion. The gripping mechanism is used to grip the pre-pressing tooling, and under the drive of the lifting portion, the pre-pressing tooling can be placed on the external carrier 1, or removed from the external carrier 1.

[0086] like Figure 7 and Figure 8 As shown in the figure, the lifting part includes a slide 7 which is arranged on the frame 5 and extends in the vertical direction. A third mounting seat 701 is slidably provided on the slide 7. A third driving cylinder is also provided on the frame 5. The power output end of the third driving cylinder is connected to the third mounting seat 701, thereby driving the third mounting seat 701 to slide up and down.

[0087] The gripping mechanism includes two clamping jaws 702 disposed on the third mounting seat 701, and a clamping jaw cylinder for driving the two clamping jaws 702 to move closer to or farther from each other. Under the driving of the clamping jaw cylinder, the free ends of the two clamping jaws 702 can move closer to each other to clamp the two sides of the tooling body 4, and can also move away from each other to release the clamping of the tooling body 4.

[0088] In order to improve the gripping effect of the gripping mechanism on the tool body 4, a second positioning column is provided on each clamping jaw 702, and second positioning holes corresponding to the second positioning columns are provided on two opposite sides of the tool body 4. When the clamping jaw 702 clamps the tool body 4, the second positioning column is inserted into the second positioning hole. This helps prevent the tool body 4 from falling off the clamping jaw 702, thereby improving the gripping effect of the gripping mechanism on the pre-pressed tool.

[0089] When the pre-pressing system in this embodiment is in use, the external carrier 1 is positioned and placed on the second mounting seat 506, and the gripping mechanism clamps the pre-pressing tooling through the two clamping claws 702, so that the tooling body 4 is located directly above the external carrier 1. The third driving cylinder drives the gripping mechanism to move downward, so that the tooling body 4 is positioned and placed on the external carrier 1, and after the clamping claws 702 release the clamping of the tooling body 4, they slide upward to the initial position under the drive of the third driving cylinder.

[0090] The tooling body 4 and the external carrier 1 are arranged up and down, and the tooling body 4 and the external carrier 1 are moved to the bottom of the pressure head 601 by sliding the second mounting seat 506 on the second linear module 503 and the first mounting seat 502 on the first linear module 501, so that the solenoid valve to be pressed and the pressure rod 3 in the pre-pressing mechanism are set corresponding to the pressure head 601, and then the servo press 6 drives the pressure head 601 to move downward. The pressure head 601 abuts against the top of the pressure rod 3 and drives the pressure rod 3 to move downward, and the abutment block 308 moves upward to compress the first spring until the pressure rod 3 abuts against the pressure surface 201, and the solenoid valve can be pressed to the preset position on the external carrier 1 through the cooperation of the pressure rod 3 and the pressure surface 201.

[0091] When it is necessary to press other solenoid valves into the external carrier 1, the positions of the external carrier 1 and the tooling body 4 on the frame 5 are adjusted by the first linear module 501 and the second linear module 503, so that the next solenoid valve to be pressed and the corresponding pressing rod 3 are aligned with the pressing head 601, and then the above-mentioned operation steps are performed.

[0092] The pre-pressing system in this embodiment can press-fit multiple valve components 2 onto the external carrier 1 one by one, which is beneficial to reducing the space occupied by the entire pre-pressing system and improving the press-fitting efficiency of the valve components 2 .

[0093] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pre-pressing mechanism for press-fitting a valve member (2) onto an external carrier (1), characterized in that: The pre-pressing mechanism comprises a pressing rod (3), an abutment block (308) slidably arranged in the pressing rod (3), and a first elastic member (307) abutting between the abutment block (308) and the pressing rod (3); The pressure rod (3) has an insertion cavity (300) with an opening at one end, the abutment block (308) is arranged in the insertion cavity (300), and the abutment block (308) is provided with an abutment surface (311) at one end close to the opening, the valve component (2) can enter the insertion cavity (300) and abut against the abutment surface (311), and under the abutment of the abutment surface (311), the valve component (2) can be pressed by the pressure rod (3) at a preset position of the external carrier (1).

2. The preloading mechanism according to claim 1, characterized in that: The pressure rod (3) is provided with a limiting portion, and the limiting portion is used to limit the abutment block (308) from escaping from the insertion cavity (300).

3. The pre-pressing mechanism according to claim 2, characterized in that: The limiting portion comprises a top screw (306) screwed onto the pressure rod (3), one end of the top screw (306) extends into the insertion cavity (300) and is blocked on one side of the abutment block (308).

4. The pre-pressing mechanism according to any one of claims 1 to 3, characterized in that: The abutting surface (311) is a plane, and the end surface of the end of the valve member (2) entering the insertion cavity (300) is a plane adapted to the abutting surface (311); and / or, The pressure rod (3) comprises a cylindrical portion (302) and a rod portion (301) arranged at one end of the cylindrical portion (302), and the outer diameter of the cylindrical portion (302) is larger than that of the rod portion (301), the insertion cavity (300) is arranged on the cylindrical portion (302), and the rod portion (301) is used to receive an external driving force.

5. A pre-pressing tool, characterized in that: It comprises a tool body (4) and a pre-pressing mechanism according to any one of claims 1 to 4, wherein the pressure rod (3) is slidably arranged on the tool body (4), and a second elastic member (303) is abutted between the pressure rod (3) and the tool body (4).

6. The pre-pressing tool according to claim 5, characterized in that: The pressure rod (3) is detachably arranged on the tool body (4).

7. The pre-pressing tool according to claim 6, characterized in that: The tool body (4) has a mounting cavity with two open ends, and a limit block (312) arranged in the mounting cavity; The pressure rod (3) is arranged in the installation cavity and penetrates the limit block (312), and a limit piece (304) is screwed on the pressure rod (3). The second elastic piece (303) abuts between the limit block and the limit piece (304), and a retaining spring (313) is clamped in the installation cavity. The retaining spring (313) can abut against the limit piece (304) to limit the pressure rod (3) from escaping from the installation cavity.

8. The pre-pressing tool according to claim 5, characterized in that: A plurality of pre-pressing mechanisms are provided on the tool body (4).

9. A preloading system, characterized in that: It comprises a frame (5), a pressing part and a moving part arranged on the frame (5), and a pre-pressing tool as claimed in any one of claims 5 to 8; The moving part is used to move the external carrier (1) pre-installed with the valve component (2) to the bottom of the pressing part. The pre-pressing tool can be placed above the external carrier (1). The pressing part can drive the pressing rod (3) to move downward and press the valve component (2) to a preset position on the external carrier (1).

10. The preloading system according to claim 9, characterized in that: The frame (5) is provided with a lifting part, and a lifting end of the lifting part is provided with a grabbing mechanism, and the grabbing mechanism is used to grab the pre-pressing tooling, and under the drive of the lifting part, the pre-pressing tooling can be placed on the external carrier (1) or removed from the external carrier (1).

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