Piston damping debugging device

Abstract

The invention belongs to the technical field of piston debugging, and discloses a piston damping debugging device which comprises a workbench, a piston clamping tool, a press machine and a constant-torque electric screwdriver. The piston clamping tool is arranged on the workbench and used for clamping a piston to be debugged. The press machine is arranged above the piston clamping tool and is aligned to the piston; and the constant-torque electric screwdriver is arranged on the piston clamping tool and is in transmission connection with an adjusting bolt on the piston. By means of the piston damping device, the servo press presses the piston on the piston clamping tool according to the set pressure, the constant-torque electric screwdriver connected with the adjusting bolt on the piston rotates to drive the adjusting bolt to rotate till the set torque force is achieved, and the set piston damping is obtained through the adjusting bolt. Through cooperation of the piston clamping tool and the press machine, stable fixation of the piston is achieved, then the adjusting bolt is adjusted to set damping through the torsion set by the constant-torsion electric screwdriver, adjustment is accurate and convenient, the working intensity is reduced, and efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of piston debugging, and in particular relates to a piston damping debugging device. Background Art

[0002] With the rapid development of railways and the popularization of high-speed trains, the demand for hydraulic shock absorbers, which are important components for attenuating locomotive and vehicle vibrations and improving vehicle operating comfort and stability, has increased significantly. At the same time, the requirements for shock absorber product performance have also become higher. Among them, the piston, as the core component of the hydraulic shock absorber, is installed inside the hydraulic shock absorber cylinder. Traditional two-way hydraulic shock absorbers require initial adjustment of the piston before final assembly. After final assembly, performance testing is carried out on a test bench. Based on the test results, the two-way hydraulic shock absorber is disassembled and the piston is adjusted again. However, this adjustment method has problems such as backward operation, poor consistency, low efficiency, and high labor intensity, and cannot meet the requirements of rapid mass production of products.

[0003] Therefore, there is an urgent need for a piston damping debugging device that can accurately adjust the piston before the overall assembly of a bidirectional structural oil pressure shock absorber, reduce the intensity of workers, improve work efficiency, and ensure the consistency and stability of the product. Summary of the Invention

[0004] The purpose of the present invention is to provide a piston damping debugging device that can accurately adjust the piston, reduce the labor intensity of workers, improve work efficiency, and ensure product performance. The specific technical solution is as follows:

[0005] A piston damping debugging device includes a workbench, a piston clamping tool, a press and a fixed torque electric screwdriver;

[0006] The piston clamping tool is arranged on a workbench and is used to clamp the piston to be debugged;

[0007] The press is arranged above the piston clamping tool and is aligned with the piston, and is used to press the piston onto the piston clamping tool;

[0008] The fixed torque electric screwdriver is arranged on the piston clamping fixture and is in driving connection with the adjusting bolt on the piston, and is used for adjusting the damping of the piston through the adjusting bolt.

[0009] Preferably, the piston clamping tooling includes a piston clamping seat and a transmission unit;

[0010] The piston clamping seat is arranged on a workbench, and the piston is fixed on the piston clamping seat;

[0011] The transmission unit is arranged in the piston clamping seat, one end of which is transmission connected to the adjusting bolt, and the other end is transmission connected to the fixed torque electric screwdriver.

[0012] Preferably, the transmission unit is arranged in one-to-one correspondence with multiple groups of adjusting bolts on the piston, and the connection ends of multiple groups of the transmission unit and the fixed torque electric screwdriver are evenly distributed along the circumference of the piston clamping seat, so that the fixed torque electric screwdriver is connected to different transmission units.

[0013] Preferably, the piston clamping fixture further comprises a rotating mechanism, and the piston clamping seat is rotatably arranged on the workbench through the rotating mechanism, and is used for rotating and adjusting the position of the connecting end between the transmission unit on the piston clamping seat and the fixed torque electric screwdriver;

[0014] The rotating mechanism includes a servo turntable and a mounting base plate; the servo turntable is rotatably arranged on the mounting base plate, and the mounting base plate is detachably connected to the workbench.

[0015] Preferably, the mounting base is provided with a plurality of through grooves, and fixing bolts are provided in the through grooves. The mounting base is adjusted to a fixed position relative to the workbench by fixing bolts in different through grooves.

[0016] Preferably, the fixed-torque electric screwdriver is also slidably arranged on the mounting base of the piston clamping tooling through a bracket; the mounting base of the piston clamping tooling is also provided with an advance and retreat cylinder, which is connected to the bracket and is used to push the bracket and the fixed-torque electric screwdriver forward and backward;

[0017] The forward and backward cylinder is a double-axis cylinder.

[0018] Preferably, the workbench is also provided with an electric control system, and the press, fixed-torque electric screwdriver, advance and retreat cylinder and servo turntable are all connected to the electric control system.

[0019] Preferably, the transmission unit includes a right-angle transmission mechanism and a sleeve, the first end of the right-angle transmission mechanism is provided with a sleeve matching the adjusting bolt, and the second end thereof is connected to the fixed torque electric screwdriver.

[0020] Preferably, the workbench is also provided with an accessory box for storing the piston.

[0021] Preferably, the workbench is further provided with a lifting mechanism and a walking mechanism, the lifting mechanism is used to adjust the height of the workbench, and the walking mechanism is used to drive the workbench to move.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] A piston damping debugging device includes a workbench, a piston clamping tool, a press, and a fixed-torque electric screwdriver; the piston clamping tool is arranged on the workbench and is used to clamp the piston to be debugged; the press is arranged above the piston clamping tool and aligned with the piston, and is used to press the piston onto the piston clamping tool; the fixed-torque electric screwdriver is arranged on the piston clamping tool and is in transmission connection with the adjusting bolt on the piston, and is used to adjust the damping of the piston through the adjusting bolt. Through the above arrangement, the servo press presses the piston onto the piston clamping tool according to the set pressure, and the fixed-torque electric screwdriver connected to the adjusting bolt on the piston rotates, driving the adjusting bolt to rotate until the set torque is reached, thereby obtaining the set piston damping through the adjusting bolt. The cooperation between the piston clamping tool and the press achieves a stable fixation of the piston, and then the adjusting bolt is adjusted to the set damping through the torque set by the fixed-torque electric screwdriver. The adjustment is accurate and convenient, saving labor intensity and improving efficiency.

[0024] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the piston damping debugging device;

[0026] Figure 2 yes Figure 1 Assembly diagram of the middle piston clamping fixture, fixed torque electric screwdriver, and advance and retreat cylinder;

[0027] Figure 3 yes Figure 2 Side view of

[0028] Figure 4 yes Figure 2 Top view of .

[0029] In the figure: 1. Workbench, 1.1. Accessory box, 1.2. Lifting mechanism, 1.3. Traveling mechanism; 2. Piston clamping fixture, 2.1. Piston clamping seat, 2.2. Sleeve, 2.3. Right-angle transmission mechanism, 2.4. Servo turntable, 2.5. Mounting base; 3. Press, 3.1. Interchangeable pressure head; 4. Fixed-torque electric screwdriver, 4.1. Bracket; 5. Advance and retraction cylinder; 6. Electronic control system; 7. Piston, 7.1. Adjusting bolt. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0031] Example:

[0032] A piston damping debugging device, reference Figures 1-2, including a workbench 1, a piston clamping tool 2, a press 3 and a fixed-torque electric screwdriver 4; the piston clamping tool 2 is arranged on the workbench 1, and is used to clamp the piston 7 to be debugged; the press 3 is arranged above the piston clamping tool 2 and is aligned with the piston 7. In this embodiment, a servo press is preferably used, which is provided with a replaceable pressure head 3.1 for matching pistons of different specifications; the servo press is used to press the piston 7 on the piston clamping tool 2; the fixed-torque electric screwdriver 4 is arranged on the piston clamping tool 2 and is in transmission connection with the adjusting bolt 7.1 on the piston 7, and is used to adjust the damping of the piston 7 through the adjusting bolt 7.1.

[0033] The servo press design and selection positioning accuracy is preferably ±0.01mm; the pressure accuracy is preferably 0.5% FS, and a display screen is configured to display the pressure value in real time to ensure the accuracy of product performance debugging.

[0034] With this setup, the servo press presses the piston against the piston clamping fixture at the set pressure. The rotation of the fixed-torque electric screwdriver, connected to the piston's adjusting bolt, drives the adjusting bolt to rotate until the set torque is reached, thereby achieving the set piston damping. The coordination of the piston clamping fixture and the press ensures a secure piston fixation. The torque set by the fixed-torque electric screwdriver is then used to adjust the adjusting bolt to the set damping. This allows for precise and convenient adjustments, saving labor and improving efficiency.

[0035] refer to Figure 3 The piston clamping fixture 2 comprises a piston clamping seat 2.1 and a transmission unit. In this embodiment, the piston clamping seat is a T70 piston clamping seat. The piston clamping seat 2.1 is mounted on the workbench 1, and the piston 7 is fixed to the piston clamping seat 2.1. The transmission unit is mounted within the piston clamping seat 2.1, with one end of the transmission unit being in transmission connection with the adjusting bolt 7.1 and the other end being in transmission connection with the fixed torque electric screwdriver 4.

[0036] The transmission unit is provided in a one-to-one correspondence with the multiple sets of adjustment bolts 7.1 on the piston 7, and the multiple sets of connection ends of the transmission unit and the fixed-torque electric screwdriver 4 are evenly distributed along the circumference of the piston clamping seat 2.1, so as to be used to connect the fixed-torque electric screwdriver 4 to different transmission units. The transmission unit includes a right-angle transmission mechanism 2.3 and a sleeve 2.2. The first end of the right-angle transmission mechanism 2.3 is provided with the sleeve 2.2 that matches the adjustment bolt 7.1, and the second end thereof is connected to the fixed-torque electric screwdriver 4. In this embodiment, by using three evenly distributed "L"-shaped right-angle transmission mechanisms, the fixed-torque electric screwdriver can be connected to different adjustment bolt points, thereby realizing fully automatic adjustment of the piston damping.

[0037] refer to Figure 4In this embodiment, a rotation mechanism is used as the specific adjustment method. The piston clamping fixture 2 also includes a rotation mechanism. The piston clamping seat 2.1 is rotatably arranged on the workbench 1 through the rotation mechanism, and is used to rotationally adjust the position of the connection end between the transmission unit on the piston clamping seat 2.1 and the fixed-torque electric screwdriver 4; the rotation mechanism includes a servo turntable 2.4 and a mounting base 2.5; the servo turntable 2.4 is rotatably arranged on the mounting base 2.5, and the mounting base 2.5 is detachably connected to the workbench 1. The automatic rotation and angular positioning of the piston clamping seat can be achieved through the indexing servo turntable, so that the fixed-torque electric screwdriver can be aligned with and connected to the right-angle transmission mechanism at different positions, meeting the requirements of clamping and debugging multiple points of a single product at one time.

[0038] The mounting base plate 2.5 is provided with a plurality of through grooves, and fixing bolts are provided in the through grooves. The mounting base plate 2.5 can be adjusted relative to the workbench 1 by adjusting the fixing bolts in different through grooves, so that the mounting position can be adjusted.

[0039] The fixed-torque electric screwdriver 4 is also slidably arranged on the mounting base 2.5 of the piston clamping fixture 2 through a bracket 4.1; an advance and retreat cylinder 5 is also provided on the mounting base 2.5 of the piston clamping fixture 2, and the advance and retreat cylinder 5 is connected to the bracket 4.1 for pushing the bracket 4.1 and the fixed-torque electric screwdriver 4 forward and backward;

[0040] The forward and backward cylinder 5 is a double-axis cylinder.

[0041] The workbench 1 is also provided with an electric control system 6, and the press 3, fixed-torque electric screwdriver 4, advance and retreat cylinder 5 and servo turntable 2.4 are all connected to the electric control system 6. The electric control system adopts PLC and is equipped with a display screen. After receiving the instruction, the electric control system transmits the instruction to the servo press to press down until the set pressure, and then controls the double-axis advance and retreat cylinder to start moving. After reaching the specified position, it pushes the fixed-torque electric screwdriver and controls the fixed-torque electric screwdriver to be connected to the transmission unit at the corresponding position, that is, the fixed-torque electric screwdriver drives the sleeve to rotate through the right-angle transmission mechanism, and the sleeve then drives the adjusting bolt to rotate until the display screen shows that the pressure value is 0, the fixed-torque electric screwdriver stops working, the double-axis advance and retreat cylinder resets, and the servo press resets. At this time, the adjustment of one adjusting bolt is completed.

[0042] Then control the indexing servo turntable to start working, rotate the set angle, and start adjusting the adjusting bolt of the second point of the piston. When the number of adjustments set by the system is reached, the piston debugging work is completed.

[0043] The workbench 1 is also provided with an accessory box 1.1 for storing the piston 7. The accessory boxes are placed on both sides of the workbench surface to meet the storage and transportation of multiple batches and quantities of products.

[0044] refer to Figure 1The workbench 1 is further provided with a lifting mechanism 1.2 and a walking mechanism 1.3. The lifting mechanism 1.2 is used to adjust the height of the workbench 1, and the walking mechanism 1.3 is used to drive the workbench 1 to move.

[0045] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A piston damping debugging device, characterized in that: It comprises a workbench (1), a piston clamping tool (2), a press (3) and a fixed torque electric screwdriver (4); The piston clamping tool (2) is arranged on the workbench (1) and is used to clamp the piston (7) to be debugged; The press (3) is arranged above the piston clamping tool (2) and aligned with the piston (7), and is used to press the piston (7) onto the piston clamping tool (2); The fixed torque electric screwdriver (4) is arranged on the piston clamping tool (2) and is drivingly connected to the adjusting bolt (7.1) on the piston (7), and is used to adjust the damping of the piston (7) through the adjusting bolt (7.1).

2. A piston damping adjustment device according to claim 1, characterized in that: The piston clamping tool (2) comprises a piston clamping seat (2.1) and a transmission unit; The piston clamping seat (2.1) is arranged on the workbench (1), and the piston (7) is fixed on the piston clamping seat (2.1); The transmission unit is arranged in the piston clamping seat (2.1), one end of which is transmission-connected to the adjusting bolt (7.1), and the other end of which is transmission-connected to the fixed-torque electric screwdriver (4).

3. A piston damping adjustment device according to claim 2, characterized in that: The transmission unit is arranged in one-to-one correspondence with the multiple groups of adjusting bolts (7.1) on the piston (7), and the multiple groups of connecting ends of the transmission unit and the fixed torque electric screwdriver (4) are evenly distributed along the circumference of the piston clamping seat (2.1), so as to connect the fixed torque electric screwdriver (4) to different transmission units.

4. A piston damping adjustment device according to claim 3, characterized in that: The piston clamping tool (2) also includes a rotating mechanism, and the piston clamping seat (2.1) is rotatably arranged on the workbench (1) through the rotating mechanism, and is used for rotationally adjusting the position of the connecting end of the transmission unit on the piston clamping seat (2.1) and the fixed torque electric screwdriver (4); The rotating mechanism comprises a servo turntable (2.4) and a mounting base plate (2.5); the servo turntable (2.4) is rotatably arranged on the mounting base plate (2.5), and the mounting base plate (2.5) is detachably connected to the workbench (1).

5. A piston damping adjustment device according to claim 4, characterized in that: The installation base plate (2.5) is provided with a plurality of groups of through grooves, and fixing bolts are provided in the through grooves. The installation base plate (2.5) is adjusted to a relative fixed position with the workbench (1) by means of the fixing bolts in different through grooves.

6. A piston damping adjustment device according to claim 5, characterized in that: The fixed-torque electric screwdriver (4) is also slidably arranged on the mounting base (2.5) of the piston clamping fixture (2) via a bracket (4.1); an advance and retreat air cylinder (5) is also arranged on the mounting base (2.5) of the piston clamping fixture (2); the advance and retreat air cylinder (5) is connected to the bracket (4.1) and is used to push the bracket (4.1) and the fixed-torque electric screwdriver (4) forward and backward; The advancing and retreating cylinder (5) is a double-axis cylinder.

7. A piston damping adjustment device according to claim 6, characterized in that: The workbench (1) is also provided with an electric control system (6), and the press (3), the fixed-torque electric screwdriver (4), the advance and retreat cylinder (5) and the servo turntable (2.4) are all connected to the electric control system (6).

8. A piston damping adjustment device according to claim 3, characterized in that: The transmission unit comprises a right-angle transmission mechanism (2.3) and a sleeve (2.2); the first end of the right-angle transmission mechanism (2.3) is provided with a sleeve (2.2) matching the adjustment bolt (7.1), and the second end is connected to the fixed torque electric screwdriver (4).

9. A piston damping adjustment device according to claim 1, characterized in that: The workbench (1) is also provided with an accessory box (1.1) for storing the piston (7).

10. A piston damping adjustment device according to claim 1, characterized in that: The workbench (1) is also provided with a lifting mechanism (1.2) and a walking mechanism (1.3); the lifting mechanism (1.2) is used to adjust the height of the workbench (1), and the walking mechanism (1.3) is used to drive the workbench (1) to move.

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