A steering cylinder press-fitting positioning device

Abstract

The utility model discloses a kind of steering oil cylinder press-fitting positioning devices, belong to oil cylinder assembly technical field, applicable to steering oil cylinder, steering oil cylinder includes the oil supply port of cylinder barrel being located on cylinder barrel, telescopicly located in the piston rod in cylinder barrel and the joint being installed on piston rod, steering oil cylinder press-fitting positioning device includes positioning die holder and press-fitting component, positioning die holder is equipped with the die cavity of being adapted with cylinder barrel, press-fitting component includes base, sliding block, joint positioning seat and driving part, sliding block is slidably arranged on base along the axial direction of cylinder barrel under the action of driving part, joint positioning seat is rotatably arranged on sliding block, joint is detachably installed on joint positioning seat, joint is provided with the insertion hole for the end portion of piston rod insertion, the central axis of insertion hole and the axis of piston rod and the rotation central axis of joint positioning seat are all collinear.The utility model limits and fixes joint by joint positioning seat, ensure the installation angle accuracy of joint relative to oil supply port.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder assembly technology, and in particular, to a steering hydraulic cylinder press-fitting and positioning device. Background Technology

[0002] The steering cylinder is a crucial component of a vehicle's steering system, primarily used to achieve directional changes. It provides power assistance via a hydraulic system, helping the driver easily perform steering maneuvers while driving, improving driving safety and ease of use. A steering cylinder typically consists of a cylinder body, piston, piston rod, and oil supply port. The piston is slidably mounted within the cylinder body. One end of the piston rod is fixedly connected to the piston, while the other end extends outside the cylinder body. The oil supply port connects to the oil supply line. During operation, hydraulic oil enters the cylinder body through the oil supply line, acting on the piston to generate significant directional assistance, thereby moving the piston and achieving directional changes.

[0003] Considering installation space and the need to avoid interference with other components, the oil supply port must face a specific direction during actual machining to prevent the oil supply pipes from becoming scattered after the cylinder is installed. To achieve this, the connector at the extended end of the steering cylinder must be at a specific angle relative to the oil supply port. This ensures that the position of the oil supply port is determined when the steering cylinder connector connects to the driven component. Currently, once the installation position of the connector relative to the oil supply port is determined, it is generally placed at the extended end of the cylinder by manual support. This method is prone to instability due to manual support, resulting in significant differences in the installation angle and making it difficult to achieve a precise relative position between the oil supply port and the connector.

[0004] Based on this, the inventor provides a steering cylinder press-fit positioning device to overcome the above-mentioned problems. Utility Model Content

[0005] The technical problem to be solved by this utility model is: in order to overcome the above-mentioned defects in the prior art, a steering cylinder press-fitting positioning device that is convenient for positioning and press-fitting is provided.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a steering cylinder press-fitting and positioning device, applicable to steering cylinders, the steering cylinder including an oil supply port on the cylinder barrel, a piston rod telescopically disposed in the cylinder barrel, and a connector mounted on the piston rod, the steering cylinder press-fitting and positioning device including a positioning mold base and a press-fitting assembly, the positioning mold base having a mold cavity adapted to the cylinder barrel, the press-fitting assembly including a base, a slider, a connector positioning seat and a driving component, the slider being slidably disposed on the base along the axial direction of the cylinder barrel under the action of the driving component, the connector positioning seat being rotatably disposed on the slider, the connector being detachably mounted on the connector positioning seat, the connector having an insertion hole for the piston rod end to be inserted, the central axis of the insertion hole being collinear with the axis of the piston rod and the rotation center axis of the connector positioning seat.

[0007] Furthermore, the connector positioning seat has an installation groove, and the connector is fitted into the installation groove.

[0008] Furthermore, the connector includes an interlocking plug and a connecting part, the plug hole is formed on the end face of the interlocking plug away from the connecting part, and the connecting part cooperates with the mounting groove.

[0009] Furthermore, the connecting part is provided with a through hole, and the connector positioning seat is provided with a through hole. The through hole and the through hole are correspondingly arranged. When the connector is inserted into the mounting groove, the through hole and the through hole are aligned and connected. A pin is installed in the through hole and passes through the through hole.

[0010] Furthermore, the press-fitting assembly also includes a drive motor, which is mounted on the slider and is used to drive the connector positioning seat to rotate.

[0011] Furthermore, the drive motor is mounted on the side of the slider away from the connector positioning seat, the output shaft of the drive motor rotatably passes through the slider and is fixedly connected to the connector positioning seat, and the insertion hole is coaxially arranged with the output shaft of the drive motor.

[0012] Furthermore, a guide groove is formed on the upper surface of the base along the axial direction of the cylinder, and the slider is slidably connected to the guide groove. A fixing plate is fixedly installed on the upper surface of the base on the side of the guide groove away from the positioning mold base. The driving component is a cylinder, and the cylinder is connected between the slider and the fixing plate.

[0013] Furthermore, the piston rod is a cylindrical structure, and the insertion hole is a circular hole.

[0014] Furthermore, the mold cavity includes a first mold cavity, a second mold cavity, and a third mold cavity, wherein the first mold cavity is adapted to the cylinder, the second mold cavity is adapted to the oil supply port, and the third mold cavity is adapted to the piston rod.

[0015] The beneficial effects of this utility model are as follows: The steering cylinder press-fitting and positioning device of this utility model restricts the cylinder and oil supply port within the mold cavity through the positioning mold seat, and restricts the joint on the joint positioning seat. By adjusting the position of the joint positioning seat, the position of the joint relative to the oil supply port is determined. At this time, the joint cannot move easily, ensuring the installation angle of the joint relative to the oil supply port. At the same time, the joint positioning seat, which is rotatable relative to the slider, can adjust the joint to different positions, satisfying the function of adjusting the installation angle of the joint. It has wide applicability and is easy to promote and use. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the structure of the steering cylinder press-fitting and positioning device of this utility model;

[0018] Figure 2 yes Figure 1 Top view of the steering cylinder press-fitting and positioning device shown;

[0019] Figure 3 yes Figure 2 An enlarged view of the press-fitting component in the steering cylinder press-fitting and positioning device shown (base and drive components omitted).

[0020] In the diagram: 1. Cylinder, 2. Oil supply port, 3. Piston rod, 4. Connector, 410. Insertion hole, 41. Insertion part, 42. Connecting part, 421. Through hole, 5. Piston, 10. Positioning mold base, 101. Mold cavity, 102. Second mold cavity, 103. Third mold cavity, 104. First mold cavity, 20. Press-fit assembly, 21. Base, 211. Guide groove, 212. Fixing plate, 22. Slider, 23. Connector positioning seat, 231. Mounting groove, 232. Through hole, 24. Driving component, 25. Drive motor, 26. Bearing. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0022] Please see Figures 1-3This invention provides a steering cylinder press-fit positioning device, applicable to steering cylinders. The steering cylinder includes a cylinder barrel 1, an oil supply port 2, a piston rod 3, and a connector 4. There are two oil supply ports 2, respectively connected to opposite sides of the cylinder barrel 1. The connection between the two oil supply ports 2 is arranged along the axial direction of the cylinder barrel 1. The piston rod 3 is telescopically mounted on the cylinder barrel 1, and the connector 4 is mounted on the piston rod 3. This steering cylinder press-fit positioning device is used to mount the connector 4 on the piston rod 3 at a specific angle. Additionally, the steering cylinder also includes a piston 5, which is slidably mounted inside the cylinder barrel 1. One end of the piston rod 3 is fixedly connected to the piston 5. The outer wall of the piston 5 and the inner wall of the cylinder barrel 1 are limited by mutually cooperating grooves and protrusions, thereby preventing the piston 5 and piston rod 3 from rotating relative to the cylinder barrel 1, thus improving reliability.

[0023] The steering cylinder press-fitting and positioning device of this utility model includes a positioning mold base 10 and a press-fitting assembly 20. The positioning mold base 10 has a mold cavity 101, which is adapted to the combination structure of the cylinder barrel 1 and the oil supply port 2 so that the cylinder barrel 1 and the oil supply port 2 are engaged in the mold cavity 101. The press-fitting assembly 20 includes a base 21, a slider 22, a connector positioning seat 23 and a driving member 24. The base 21 is located on one side of the positioning mold base 10. The slider 22 is slidably disposed on the base 21 along the axial direction of the cylinder barrel 1 under the action of the driving member 24. The connector positioning seat 23 is rotatably mounted on the slider 22. The connector positioning seat 23 has an installation groove 231 that mates with the connector 4. The connector 4 is detachably installed in the installation groove 231. The connector 4 has an insertion hole 410 for the end of the piston rod 3 to be inserted. The central axis of the insertion hole 410 is collinear with the axis of the piston rod 3 and the rotation center axis of the connector positioning seat 23. Among them, the piston rod 3 is a cylindrical structure, and the insertion hole 410 is a round hole.

[0024] When it is necessary to install the connector 4 on the piston rod 3, first align the cylinder 1 and the oil supply port 2 in the mold cavity 101. At this time, under the limiting action of the mold cavity 101, the positions of the cylinder 1 and the oil supply port 2 are restricted on the positioning mold base 10, and the cylinder 1 cannot move relative to the positioning mold base 10 along its own axis. Next, install the connector 4 to be installed in the mounting groove 231 of the connector positioning seat 23. After the connector 4 is installed in place, the central axis of the insertion hole 410 on the connector 4 is collinear with the central axis of the piston rod 3. Then, rotate the connector positioning seat 23 relative to the slider 22, thereby driving the connector 4 to rotate, so as to determine the installation angle of the connector 4 relative to the oil supply port 2. Then, start the drive component 24 to move the slider 22 along the axis of the cylinder 1, thereby driving the connector 4 to move synchronously, and finally press the connector 4 onto the end of the piston rod 3. After installation, pull the connector 4 out of the mounting groove 231.

[0025] In this embodiment, the mold cavity 101 includes a first mold cavity 104, a second mold cavity 102, and a third mold cavity 103. All three mold cavities 101 have an opening at the top. The first mold cavity 104 is adapted to the cylinder 1, the second mold cavity 102 is adapted to the oil supply port 2, and the third mold cavity 103 is adapted to the piston rod 3. During installation, each component is inserted into the corresponding mold cavity through the opening at the top of each mold cavity. After the connector 4 is installed in place, the hydraulic cylinder can be directly moved upward out of the mold cavity 101. The operation is simple and convenient.

[0026] The connector 4 includes an interlocking plug portion 41 and a connecting portion 42. The plug portion 41 has a cuboid structure, and the connecting portion 42 has a semi-circular structure. An insertion hole 410 is formed on the end face of the plug portion 41 away from the connecting portion 42. The connecting portion 42 mates with the mounting groove 231. When installing the connector 4, the connecting portion 42 is inserted into the mounting groove 231, and the plug portion 41 is located outside the connector base 23.

[0027] Furthermore, a through hole 421 is provided on the connecting part 42 for connecting with the driven component. A through hole 232 is provided on the connector positioning seat 23, which penetrates two opposite surfaces of the connector positioning seat 23 and is correspondingly provided with the through hole 421. When the connector 4 is inserted into the mounting groove 231, the through hole 232 and the through hole 421 are aligned and connected. At this time, the user can pass the mating pin through the through hole 232 through the connector positioning seat 23. The pin then passes through the through hole 421 through the connector 4, thereby locking the connector 4 onto the connector positioning seat 23. The connector 4 cannot be detached from the connector positioning seat 23, ensuring the connection stability between the connector 4 and the connector positioning seat 23 before press fitting.

[0028] In this embodiment, the press-fit assembly 20 further includes a drive motor 25, which is mounted on the slider 22 and is used to drive the connector positioning seat 23 to rotate. Specifically, the drive motor 25 is mounted on the side of the slider 22 away from the connector positioning seat 23, and the output shaft of the drive motor 25 rotatably passes through the slider 22 and is fixedly connected to the connector positioning seat 23. The insertion hole 410 is coaxially arranged with the output shaft of the drive motor 25.

[0029] When adjusting the angle of the connector positioning seat 23, simply start the drive motor 25 to rotate the connector positioning seat 23. Furthermore, a bearing 26 is provided between the output shaft of the drive motor 25 and the slider 22. The outer ring of the bearing 26 is fixedly embedded inside the slider 22, and the inner ring of the bearing 26 is fixedly sleeved outside the output shaft of the drive motor 25. By providing the bearing 26, on the one hand, it facilitates the smooth rotation of the connector positioning seat 23 by the output shaft of the drive motor 25; on the other hand, it provides effective support for the output shaft of the drive motor 25, preventing deformation of the output shaft of the drive motor 25 when the connector 4 is pressed onto the piston rod 3, thus improving reliability and extending service life.

[0030] In other embodiments, a circular shaft structure may be fixedly protruding on the connector positioning seat 23. This circular structure is rotatably mounted on the slider 22, and the output shaft of the drive motor 25 is fixedly connected to one end of the circular structure, which can also drive the motor 25 to drive the connector positioning seat 23 to rotate. Of course, a bearing can also be further provided between the circular structure and the slider 22 to provide support.

[0031] A guide groove 211 is formed on the upper surface of the base 21 along the axial direction of the cylinder 1, and the slider 22 is slidably connected to the guide groove 211. In this embodiment, a fixing plate 212 is fixedly installed on the upper surface of the base 21 on the side of the guide groove 211 away from the positioning mold base 10. The driving component 24 is a cylinder, the cylinder body of which is fixedly installed on the fixing plate 212, and the extended end of the cylinder is fixedly connected to the slider 22. In this embodiment, the central axis of the cylinder is collinear with the central axis of the insertion hole 410, so that the joint 4 is subjected to balanced force during pressing, ensuring stable pressing of the joint 4. It should be noted that when pressing the ring joint 4, the piston rod 3 is first moved to the extreme position of the cylinder 1 away from the pressing assembly 20, so that the end cap of the cylinder supports the piston 5, which facilitates pressing.

[0032] The steering cylinder press-fitting and positioning device of this utility model restricts the cylinder barrel 1 and the oil supply port 2 within the mold cavity 101 by the positioning mold base 10, and restricts the connector 4 on the connector positioning seat 23. By adjusting the position of the connector positioning seat 23, the position of the connector 4 relative to the oil supply port 2 is determined. At this time, the connector 4 cannot move easily, ensuring the installation angle of the connector 4 relative to the oil supply port 2. At the same time, the connector positioning seat 23, which is rotatable relative to the slider 22, can adjust the connector 4 to different positions, satisfying the function of adjusting the installation angle of the connector 4. It has wide applicability and is easy to promote and use.

[0033] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the scope of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A steering cylinder press-fitting and positioning device, applicable to steering cylinders, the steering cylinder comprising an oil supply port disposed on the cylinder barrel, a piston rod retractably disposed within the cylinder barrel, and a connector mounted on the piston rod, characterized in that: The steering cylinder press-fitting and positioning device includes a positioning mold base and a press-fitting assembly. The positioning mold base is provided with a mold cavity adapted to the cylinder barrel. The press-fitting assembly includes a base, a slider, a connector positioning seat, and a driving component. The slider is slidably mounted on the base along the axial direction of the cylinder barrel under the action of the driving component. The connector positioning seat is rotatably mounted on the slider. The connector is detachably mounted on the connector positioning seat. The connector has an insertion hole for the piston rod end to be inserted. The central axis of the insertion hole is collinear with the axis of the piston rod and the rotation center axis of the connector positioning seat.

2. The steering cylinder press-fitting and positioning device as described in claim 1, characterized in that: The connector positioning seat has an installation groove, and the connector is fitted into the installation groove.

3. The steering cylinder press-fitting and positioning device as described in claim 2, characterized in that: The connector includes a plug-in portion and a connecting portion that are connected to each other. The plug hole is formed on the end face of the plug-in portion away from the connecting portion. The connecting portion cooperates with the mounting groove.

4. The steering cylinder press-fitting and positioning device as described in claim 3, characterized in that: The connecting part has a through hole, and the connector positioning seat has a through hole. The through hole and the through hole are correspondingly arranged. When the connector is inserted into the mounting groove, the through hole and the through hole are aligned and connected. A pin is installed in the through hole and passes through the through hole.

5. The steering cylinder press-fitting and positioning device as described in claim 1, characterized in that: The press-fitting assembly also includes a drive motor, which is mounted on the slider and is used to drive the connector positioning seat to rotate.

6. The steering cylinder press-fitting and positioning device as described in claim 5, characterized in that: The drive motor is mounted on the slider on the side away from the connector positioning seat. The output shaft of the drive motor rotatably passes through the slider and is fixedly connected to the connector positioning seat. The insertion hole is coaxial with the output shaft of the drive motor.

7. The steering cylinder press-fitting and positioning device as described in claim 1, characterized in that: The upper surface of the base has a guide groove along the axial direction of the cylinder. The slider is slidably connected to the guide groove. A fixing plate is fixedly installed on the upper surface of the base on the side of the guide groove away from the positioning mold base. The driving component is a cylinder, which is connected between the slider and the fixing plate.

8. The steering cylinder press-fitting and positioning device as described in claim 1, characterized in that: The piston rod is cylindrical, and the insertion hole is a circular hole.

9. The steering cylinder press-fitting and positioning device as described in claim 1, characterized in that: The mold cavity includes a first mold cavity, a second mold cavity, and a third mold cavity. The first mold cavity is adapted to the cylinder, the second mold cavity is adapted to the oil supply port, and the third mold cavity is adapted to the piston rod.

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