Steering engine fixing mechanism for tie rod assembly
By designing the steering machine fixing mechanism of the gas-liquid booster cylinder and rack position detection mechanism, the problem of unstable steering machine fixing during cross-tie rod assembly is solved, and a stable clamping force and safe assembly process is achieved.
Patent Information
- Application Number
- CN202323493746.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-21
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2033-12-21
AI Technical Summary
During the assembly process of the cross-tie rod, the steering machine cannot be stable and fixed, resulting in uneven torque transmission, which may cause damage to the steering machine and loosening of the cross-tie rod, affecting driving safety.
A steering machine fixing mechanism including a gas-liquid supercharger cylinder, a supercharger cylinder connection seat, a fixed base and a rack position detection mechanism are designed to maintain stable fixation of the steering machine through clamping mechanisms on both sides of the left and right sides, and pass through position sensors Monitor the clamping force to ensure that there is no deformation at the rack clamping.
The stable fixation of the steering machine is achieved, ensuring stable and adjustable clamping force during the assembly of the cross-tie rod, avoiding the problems of damage to the steering machine and loosening of the cross-tie rod, and improving the safety of the assembly process.
Smart Images
Figure CN222177512U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steering systems, in particular to a steering machine fixing mechanism used for assembling a tie rod. Background Art
[0002] Generally speaking, the tightening torque of the tie rod is relatively large, usually exceeding 100Nm. If the steering gear is not specially fixed, the torque will be transmitted to the internal parts of the steering gear through the tie rod rack, which will cause the steering gear to twist on the one hand, and on the other hand, it will also cause the internal parts of the steering gear to be compressed and damaged. In addition, unstable fixation of the steering gear will also lead to deviations in the installation torque of the tie rod, and even cause the tie rod to loosen, seriously affecting driving safety. Therefore, ensuring the stable fixation of the steering gear during the tie rod assembly is a relatively important part of the entire assembly process. Summary of the invention
[0003] In order to overcome the deficiencies of the prior art, the utility model provides a steering gear fixing mechanism used in assembling a tie rod, thereby ensuring that the steering gear can be stably fixed when the tie rod is assembled.
[0004] In order to achieve the above-mentioned purpose, a steering gear fixing mechanism for assembling a tie rod is designed, which is characterized in that: the fixing mechanism includes a left-side fixing mechanism and a right-side fixing mechanism, and the left-side fixing mechanism and the right-side fixing mechanism are mirror images of each other; the left-side fixing mechanism includes a gas-liquid booster cylinder, a booster cylinder connecting seat, and a fixed base, the booster cylinder connecting seat is connected to the gas-liquid booster cylinder, the driving end of the gas-liquid booster cylinder is connected to one end of a connecting rod, and one end of a lower swing arm is provided below the other end of the connecting rod, and the other end of the lower swing arm is connected to a clamping lower tooling, a clamping upper tooling is provided above the clamping lower tooling, the clamping upper tooling is connected to the fixed base, and a rack position detection mechanism is provided on the fixed base; the lower swing arm shaft is connected to the rotating shaft.
[0005] The rack position detection mechanism includes a cylinder, a cylinder connecting rod, a detection head, and a position sensor. The top of the fixed base is connected to the cylinder through a cylinder connecting seat. One side of the cylinder is provided with a plurality of position sensors. The other side of the cylinder is connected to one end of the cylinder connecting rod. The other end of the cylinder connecting rod passes through the fixed base and is connected to the detection head.
[0006] The detection head is located between the clamping upper tooling and the clamping lower tooling.
[0007] There are at least four position sensors, and each position sensor is connected to the detection head via a line.
[0008] The lower part of the boost cylinder connecting seat is a hollow structure, and the connecting rod is located at the inner side of the lower part of the boost cylinder connecting seat.
[0009] The rotating shaft is located on the lower swing arm close to the clamping lower tooling.
[0010] Compared with the prior art, the utility model provides a steering gear fixing mechanism used for assembling a tie rod, which can maintain a stable and adjustable clamping force by holding the rack in the steering gear subassembly on the left and right sides, and can be monitored by equipment, and ensure that the threads at the clamping position of the rack are not deformed. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a three-dimensional diagram of the structure of the utility model.
[0012] Figure 2 It is the front view of the structure of the utility model.
[0013] Figure 3 for Figure 2 AA section view.
[0014] Figure 4 Schematic diagram of the rack clamping force curve after internal wear.
[0015] Figure 5 Schematic diagram of the range of working angle A.
[0016] Figure 6 It is a schematic diagram of the structure of the left fixing mechanism in the utility model.
[0017] Figure 7 for Figure 6 A magnified schematic diagram of B. DETAILED DESCRIPTION
[0018] The utility model is further described below with reference to the accompanying drawings.
[0019] like Figures 1 to 7 As shown, the fixing mechanism of the utility model includes a left-side fixing mechanism and a right-side fixing mechanism, and the left-side fixing mechanism and the right-side fixing mechanism are mirror images of each other; the left-side fixing mechanism includes a gas-liquid booster cylinder 2, a booster cylinder connecting seat 3, and a fixed base 9, the booster cylinder connecting seat 3 is connected to the gas-liquid booster cylinder 2, the driving end of the gas-liquid booster cylinder 2 is connected to one end of a connecting rod 12, and one end of a lower swing arm 5 is provided below the other end of the connecting rod 12, and the other end of the lower swing arm 5 is connected to a clamping lower tooling 10, and a clamping upper tooling 11 is provided above the clamping lower tooling 10, and the clamping upper tooling 11 is connected to the fixed base 9, and a rack position detection mechanism is provided on the fixed base 9; the lower swing arm 5 is axially connected to the rotating shaft 4.
[0020] The rack position detection mechanism includes a cylinder, a cylinder connecting rod, a detection head, and a position sensor. It is located on the top of the fixed base 9 and is connected to the cylinder 7 through the cylinder connecting seat 14. A number of position sensors 6 are provided on one side of the cylinder 7. The other side of the cylinder 7 is connected to one end of the cylinder connecting rod 8. The other end of the cylinder connecting rod 8 passes through the fixed base 9 and is connected to the detection head 15.
[0021] The detection head 15 is located between the clamping upper tooling 11 and the clamping lower tooling 10 .
[0022] At least four position sensors 6 are provided, and each position sensor 6 is connected to the detection head 15 via a line.
[0023] The lower part of the boost cylinder connecting seat 3 is a hollow structure, and the connecting rod 12 is located at the inner side of the lower part of the boost cylinder connecting seat 3 .
[0024] The rotating shaft 4 is located on the lower swing arm 5 close to the clamping lower tooling 10 .
[0025] like Figure 1 , Figure 2 As shown, the utility model is divided into two parts, left and right, which are used to clamp the two sides of the rack 13 inside the steering gear subassembly 1. At the same time, the left fixing mechanism and the right fixing mechanism are mirrored designs. In addition, the utility model needs to be installed on a driving component or a specific device to control its clamping of the product.
[0026] like Figure 3 As shown, when the gas-liquid booster cylinder 2 moves downward, it drives the connecting rod 12 to be pressed downward, and the left side of the lower swing arm 5 will move downward. Due to the action of the rotating shaft 4, the corresponding right side of the lower swing arm 5 will be lifted upward, driving the clamping lower tooling 10 to move upward, and clamping the rack 13 together with the clamping upper tooling 11 on the fixed base 9. According to the adjustment of the output force of the gas-liquid booster cylinder 2, the clamping force can be changed, and by monitoring the control of the lever pressure of the entire gas-liquid booster cylinder 2, the output force can be monitored. At the same time, the entire mechanism can be considered as a lever mechanism, and the transmission of force is also linear. Even if the entire mechanism is partially worn after long-term operation, its output force is very stable, which can be seen from Figure 4 , Figure 5 It can be seen that if the clamping mechanism is worn internally, the working angle A will slowly increase. At this time, the output force of the entire system changes very little as the angle changes, which can be said to be negligible to the entire assembly process.
[0027] like Figure 6 , Figure 7As shown, it is a rack position detection mechanism, the cylinder 7 drives the movement of the entire detection component, and controls the movement stroke of the entire moving component through four different step surfaces (i.e., step surface 16, step surface 2 17, step surface 3 18, step surface 4 19) contacting the end surface of the rack 13, and determines the on-off status of the position sensor 6, so as to 100% monitor the state of the end surface of the rack 13 exposing the clamping block. During the tightening process of the tie rod, the entire detection mechanism will retract into the fixed base 9, which will not have any effect on the tightening process.
[0028] The utility model supports the rack 13 in the steering gear subassembly 1 on the left and right sides, and requires the clamping force to be stable, adjustable, and can be monitored by equipment, and ensures that the threads of the rack 13 are not deformed at the clamping position; the end face of the rack 13 must be exposed to the fixing tooling during the tightening process of the tie rod to prevent the tie rod from interfering with the fixing tooling during the tightening process, resulting in the occurrence of too low torque for actual parts assembly.
Claims
1. A steering gear fixing mechanism used for assembling a tie rod, characterized in that: The fixing mechanism comprises a left fixing mechanism and a right fixing mechanism, and the left fixing mechanism and the right fixing mechanism are mirror images of each other; the left fixing mechanism comprises a gas-liquid boosting cylinder (2), a boosting cylinder connecting seat (3), and a fixed base (9); the boosting cylinder connecting seat (3) is connected to the gas-liquid boosting cylinder (2); the driving end of the gas-liquid boosting cylinder (2) is connected to one end of a connecting rod (12); one end of a lower swing arm (5) is provided below the other end of the connecting rod (12); the other end of the lower swing arm (5) is connected to a clamping lower tooling (10); an upper clamping tooling (11) is provided above the clamping lower tooling (10); the upper clamping tooling (11) is connected to the fixed base (9); a rack position detection mechanism is provided on the fixed base (9); the lower swing arm (5) is axially connected to a rotating shaft (4).
2. The steering gear fixing mechanism used for assembling a tie rod according to claim 1, characterized in that: The rack position detection mechanism comprises a cylinder, a cylinder connecting rod, a detection head, and a position sensor, which is located at the top of a fixed base (9) and connected to a cylinder (7) via a cylinder connecting seat (14). One side of the cylinder (7) is provided with a plurality of position sensors (6), and the other side of the cylinder (7) is connected to one end of a cylinder connecting rod (8). The other end of the cylinder connecting rod (8) passes through the fixed base (9) and is connected to the detection head (15).
3. The steering gear fixing mechanism used for assembling a tie rod according to claim 2, characterized in that: The detection head (15) is located between the clamping upper tooling (11) and the clamping lower tooling (10).
4. The steering gear fixing mechanism used for assembling a tie rod according to claim 2, characterized in that: At least four position sensors (6) are provided, and each position sensor (6) is connected to a detection head (15) via a line.
5. The steering gear fixing mechanism used for assembling a tie rod according to claim 1, characterized in that: The lower part of the boost cylinder connecting seat (3) is a hollow structure, and the connecting rod (12) is located at the inner side of the lower part of the boost cylinder connecting seat (3).
6. The steering gear fixing mechanism used for assembling a tie rod according to claim 1, characterized in that: The rotating shaft (4) is located on a lower swing arm (5) close to the clamping lower tooling (10).