CN109297524B - Mechanical steering gear assembly detection device - Google Patents
Mechanical steering gear assembly detection device Download PDFInfo
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- CN109297524B CN109297524B CN201810725045.3A CN201810725045A CN109297524B CN 109297524 B CN109297524 B CN 109297524B CN 201810725045 A CN201810725045 A CN 201810725045A CN 109297524 B CN109297524 B CN 109297524B
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- steering gear
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
Abstract
Mechanical steering gear assembly detection device relates to car steering gear technical field. The device comprises a lathe bed, an electric control cabinet, a display control box, a screw shaft driving mechanism, a screw cap driving mechanism, a sliding body lifting mechanism, a damping limiter, a clamp tensioning mechanism, a torque wrench and an operation button box, wherein an industrial control computer is used as an operation controller, a data acquisition card and a motion control card are arranged in the industrial control computer, feedback values of sensors in the assembly process are acquired in real time, the servo motors and the cylinder are controlled through operation output, the idle torque of the screw shaft and the pretightening torque of the screw cap reach the process requirements, the screw cap is locked, the middle position of the input end of the steering gear is found out, and a peak value adjusting screw is adjusted, so that the idle peak value of the screw shaft reaches the process requirements. The application realizes automatic assembly detection in the assembly process, has high work efficiency, reliable performance, simple and convenient operation, strong automation capacity, strictly ensures assembly quality and has remarkable comprehensive economic benefit. The application can be popularized and applied to automobile steering machine production enterprises.
Description
Technical Field
The application relates to the technical field of automobile steering gears, in particular to a mechanical steering gear assembly detection device.
Background
There are three very important performance indicators for a mechanical diverter:
1. the idle torque requirement of the screw shaft at the input end is 0.3-0.5N.m;
2. the peak torque requirement of the screw shaft is 0.8-1.2N.m;
3. the total turn error may not exceed 15 °.
In order to ensure the requirements, an assembler must install a screw cap while shaking a screw shaft when assembling a steering gear, judge a torque value by means of hand feeling, detect the torque value by using a hand-held torque rocking meter after finishing adjustment (steering gear structure is shown in fig. 1), and if the adjustment is not in a required range, rework treatment is required, and then screw cap locking, peak value adjustment and total circle number judgment are also required, so that the assembly efficiency is very low, the labor intensity of the worker is high, and the assembly quality cannot be ensured. The solution to the problem is to have a set of device capable of replacing manual automatic assembly and detection. Therefore, the application designs and makes a set of mechanical steering gear assembly detection device which is efficient, practical, reliable in performance, used for replacing manual automatic assembly and detection in the assembly process and capable of strictly ensuring the assembly quality.
From the search, there is no patent application in China which is the same as the present application.
Disclosure of Invention
The mechanical steering gear assembly detection device provided by the application has the advantages of realizing automatic assembly detection in the assembly process, along with high work efficiency, reliable performance, simplicity and convenience in operation, strictly guaranteeing the assembly quality and remarkable comprehensive economic benefit.
The technical scheme adopted for solving the technical problems is as follows: the mechanical steering gear assembly detection device comprises a lathe bed, an electrical control cabinet, a display control box, a screw shaft driving mechanism, a screw cap driving mechanism, a sliding body lifting mechanism, a damping limiter, a clamp tensioning mechanism, a torque wrench, an operation button box and a steering gear, wherein the lathe bed is formed by welding square steel and steel plates and is arranged on the ground in an inverted T shape; the electric control cabinet is arranged at the back of the lathe bed, an electric control element is arranged in the electric control cabinet, an industrial personal computer is used as an operation controller in the electric part, a data acquisition card and a motion control card are arranged in the industrial personal computer, a special test program is written through VB, feedback values of sensors in the assembling process are acquired in real time, and the servo motors and the cylinders are controlled to act through operation output; the display control box is arranged on the right upper side of the lathe bed, a liquid crystal display, a keyboard, a mouse and control buttons are arranged on the display control box, and the control buttons are used for controlling the power supply of the device to start/stop through a mouse and keyboard operation test program; the screw shaft driving mechanism is longitudinally fixed right above the lathe bed, a servo motor A is arranged on the screw shaft driving mechanism, and the screw shaft of the steering gear is driven to move in positive and negative directions through a torque limiter, a torque sensor C, a coupler, an angle encoder, a transmission shaft bearing seat, an internal spline transmission sleeve rod and an input transmission shaft; the upper end of the input transmission shaft is an external spline shaft, and the external spline shaft penetrates through an internal center hole of the right-angle speed reducer to be sleeved into an internal spline transmission sleeve rod, so that the external spline shaft can be vertically drawn and connected with a steering gear screw shaft; the sliding body lifting mechanism is fixed on the left side of the screw shaft driving mechanism above the lathe bed and is parallel to the screw shaft driving mechanism, and the cylinder fixed on the mounting bracket pushes the screw cap driving mechanism to move up and down along the linear guide rail; the screw cap driving mechanism is transversely arranged at the middle part of the lathe bed and is perpendicular to the screw shaft driving mechanism, and the screw cap of the steering gear is driven to move positively and reversely through the servo motor B, the coupler, the torque sensor D, the right-angle speed reducer and the screw cap driving sleeve; the damping limiter is arranged below the screw cap driving mechanism and is fixed on the lathe bed through mounting brackets on the left side and the right side, and the mounting height of the damping limiter is adjusted to control the descending displacement of the screw cap driving mechanism; the clamp is arranged on the workbench surface of the lathe bed and is used for installing a steering gear, and the clamp sliding plate can slide left and right along a linear guide rail arranged on the workbench surface; the clamp tensioning mechanism is arranged at the lower part of the lathe bed workbench, a cylinder drives the pressing plate to move up and down, and the clamp slide plate is tensioned and used for fixing the clamp; the torque wrench is arranged on the tray on the right side of the lathe bed, can be sleeved in 6 holes arranged on the circumference of the screw cap driving sleeve and is used for locking the screw cap locking nut of the steering gear; the operation button box is arranged right in front of the working table surface of the machine body, and a double-hand starting button and an emergency stopping button are arranged on the operation button box;
the assembly and detection flow is as follows:
step 1: clamping a workpiece,
step 2: the screw cap is assembled to the pre-tightening torque value,
step 3: the idle torque of the screw shaft is dynamically adjusted,
step 4: the locking nut of the locking screw cap is locked,
step 5: the total number of turns is detected,
step 6: dynamic peak shaving;
the assembly and detection method comprises the following steps:
fixing a steering gear shell onto a clamp, screwing a locking screw on a vertical plate on the right side of the clamp, gluing a screw cap and a rocker shaft side cap of the steering gear into the shell, pushing a clamp slide plate to an assembling position on the right side of a workbench, pulling down an input transmission shaft to be connected with the screw shaft of the steering gear, pressing down a keyboard 'G' key to select an assembling program, pressing down a double-hand starting button of an operation button box, starting a cylinder of a clamp tensioning mechanism by a system to downwards tension the clamp slide plate, downwards extending a cylinder piston rod of a sliding body lifting mechanism, pushing a screw cap driving mechanism to downwards, sleeving the screw cap driving sleeve into the screw cap of the steering gear, entering a screw cap pre-tightening step at the moment, rapidly locking the screw cap to a pre-tightening torque by the screw cap driving mechanism through the driving sleeve, then entering a dynamic adjustment no-load torque step, acquiring feedback values of a sensor C and a sensor D in real time by a control device, and calculating and judging by an industrial personal computer, the output drives the two shaft servo motors A and B to rotate until the idle torque of the screw shaft is detected to reach the process requirement, at the moment, the system reminds of locking the screw cap nut, after the system detects the signal of the torque wrench, the system enters a total circle number measuring stage, the screw shaft driving mechanism drives the screw shaft to rotate through the input transmission shaft to measure the total angle of the steering gear, the middle position of the input end of the steering gear is found out to enter a peak regulation stage, the screw shaft driving mechanism drives the screw shaft to rotate at 90 DEG positions on the left and right sides of the middle position, at the moment, the peak value adjusting screw is adjusted until the idle torque peak value of the screw shaft reaches the process requirement, at the moment, an F key on a keyboard is pressed, the system controls the cylinder of the sliding body driving device to pull up, the screw cap driving mechanism is lifted to be limited up, at the same time, the cylinder piston rod of the clamp tensioning mechanism is lifted up, the clamp bottom plate is loosened, the steering gear assembly is taken down, the entire assembly and inspection process of the diverter is completed.
The beneficial effects of the application are as follows:
(1) the application solves the coaxial two-axis linkage problem in the mechanical steering gear assembly and detection process.
(2) The application realizes automatic assembly and automatic detection of the mechanical steering gear in the production process, solves the problem of visual management of data, increases the traceability function of detection results, and strictly ensures the assembly quality of the steering gear.
(3) The application has reliable performance, simple and convenient operation and strong automation capability, and reduces the labor intensity of workers.
The application can be widely popularized and applied to the assembly detection device of the mechanical steering gear assembly of the automobile steering gear production enterprises.
Drawings
FIG. 1 is a schematic illustration of a mechanical diverter assembly.
FIG. 2 is a schematic diagram of the mechanical diverter assembly detection apparatus of the present application.
FIG. 3 is a partial schematic view of a screw shaft drive mechanism and screw cap drive mechanism of the mechanical diverter assembly of the present application.
FIG. 4 is a schematic view of the screw cap and lock nut drive configuration of the mechanical diverter assembly detection device of the present application.
Fig. 5 to 10 are electrical control schematic diagrams of the present application.
Wherein: fig. 5 is a power control loop, in which: QF 0-main switch; QF1, QF2, QF3, QF4 and QF5 are all branch circuit breakers; DY1, DY2 and DY3 are switching power supplies; TC 1-servo transformer.
Fig. 6 is a control loop, in which: SB 3-power on button; SB 2-Power off button; SB 1-scram button; the YV1 sliding body ascends the air valve; YV 2-slide lowering valve; YV 3-clamp tightening air valve.
Fig. 7 is a data acquisition card interface control loop, in which: TQ662 for detecting screw shaft torque; TQ660 for detecting screw cap torque; the value of the sensor acquired by the TED-3012 is input to the data acquisition card AC6624 after passing through a low-pass filter circuit.
FIG. 8 is an I/O control loop and angle acquisition loop, AC6624 acquiring peripheral switching value signals and outputting control peripheral switching value loads via I/O interface board AC 140; the MPC08 motion control card collects angle encoder signals through the interface card P62 for detecting the current angle values of the screw shaft and the screw cap.
Fig. 9 and 10 are a screw shaft servo motor control loop and a screw cap servo motor control loop respectively, and the MPC08 motion control card outputs pulse signals to control the loosening servo drivers MCDKT3520 and MDDKT5540, and then the servo drivers drive the servo motors, and meanwhile, the motion control card collects feedback pulses of each servo motor encoder to realize closed loop control.
Detailed Description
The application will be further described with reference to the drawings and examples.
The application relates to a mechanical steering gear assembly detection device, which comprises a lathe bed (1), an electrical control cabinet (2) and a display control box (3), wherein a screw shaft driving mechanism (4), a screw cap driving mechanism (5), a sliding body lifting mechanism (6), a damping limiter (7), a clamp (8), a clamp tensioning mechanism (9), a torque wrench (10), an operation button box (11) and a steering gear (12), wherein the lathe bed (1) is formed by welding square steel and steel plates and is arranged on the ground in an inverted T shape; the electric control cabinet (2) is arranged at the back of the lathe bed (1), an electric control element is arranged in the electric control cabinet, an industrial personal computer is used as an operation controller in the electric part, a data acquisition card and a motion control card are arranged in the industrial personal computer, a special test program is written through VB, feedback values of sensors in the assembling process are acquired in real time, and the servo motors and the cylinders are controlled to act through operation output; the display control box (3) is arranged on the right upper side of the lathe bed (1), a liquid crystal display, a keyboard, a mouse and control buttons are arranged on the display control box (3), and the control buttons are used for controlling the power supply of the device to start/stop through a mouse and keyboard operation test program; the screw shaft driving mechanism (4) is longitudinally fixed right above the lathe bed (1), a servo motor A (13) is arranged on the screw shaft driving mechanism, and the screw shaft of the steering gear is driven to move in positive and negative directions through a torque limiter (14), a torque sensor C (15), a coupler (16), an angle encoder (17), a transmission shaft bearing seat (18), an internal spline transmission sleeve rod (19) and an input transmission shaft (20); the upper end of the input transmission shaft (20) is an external spline shaft, and the external spline shaft penetrates through an inner central hole of the right-angle speed reducer (24) to be sleeved into an internal spline transmission sleeve rod (19) and can be connected with a steering gear screw shaft in a vertical drawing way; the sliding body lifting mechanism (6) is fixed on the left side of the screw shaft driving mechanism (4) above the lathe bed (1), is parallel to the screw shaft driving mechanism (4), and drives the screw cap driving mechanism (5) to move up and down along the linear guide rail by a cylinder fixed on the mounting bracket; the screw cap driving mechanism (5) is transversely arranged at the middle part of the lathe bed (1) and is perpendicular to the screw shaft driving mechanism (4), and the screw cap of the steering gear is driven to move positively and reversely through the servo motor B (21), the coupler (22), the torque sensor D (23), the right-angle speed reducer (24) and the screw cap driving sleeve (25); the damping limiter (7) is arranged below the screw cap driving mechanism (5), is fixed on the lathe bed (1) through mounting brackets at the left side and the right side, and can control the descending displacement of the screw cap driving mechanism (5) by adjusting the mounting height of the damping limiter (7); the clamp (8) is arranged on the working table surface of the lathe bed (1) and is used for installing the steering gear (12), and the clamp sliding plate can slide left and right along a linear guide rail arranged on the working table surface of the lathe bed (1); the clamp tensioning mechanism (9) is arranged at the lower part of the workbench of the lathe bed (1), a cylinder drives the pressing plate to move up and down, and the clamp slide plate is tensioned and used for fixing the clamp (8); the torque wrench (10) is arranged on a tray on the right side of the lathe bed (1), and the torque wrench (10) can be sleeved in 6 holes arranged on the circumference of the screw cap driving sleeve (25) and used for locking a screw cap locking nut of the steering gear (12); the operation button box (11) is arranged right in front of the working table surface of the lathe bed (1), and a double-hand starting button and an emergency stopping button are arranged on the operation button box;
the assembly and detection flow is as follows:
step 1: clamping a workpiece,
step 2: the screw cap is assembled to the pre-tightening torque value,
step 3: the idle torque of the screw shaft is dynamically adjusted,
step 4: the locking nut of the locking screw cap is locked,
step 5: the total number of turns is detected,
step 6: dynamic peak shaving;
the assembly and detection method comprises the following steps:
fixing a steering gear (12) shell onto a clamp (8), screwing a locking screw on a right vertical plate of the clamp (8), gluing a screw cap and a rocker shaft side cap of the steering gear (12) into the shell, pushing a clamp sliding plate to an assembling position on the right side of a workbench, pulling down an input transmission shaft (20) to be connected with the screw shaft of the steering gear (12), pressing down a keyboard 'G' key to select an assembling program, pressing down a double-hand starting button of an operating button box (11), starting a cylinder of a clamp tensioning mechanism (9) by a system to downwards tension the clamp sliding plate, enabling a cylinder piston rod of a sliding body lifting mechanism (6) to downwards extend, pushing a screw cap driving mechanism (5) to downwards, enabling the screw cap driving sleeve (25) to be sleeved into the screw cap of the steering gear (12), entering a screw cap pre-tightening step at the moment, enabling the screw cap driving mechanism (5) to rapidly lock the screw cap to a pre-tightening torque through the driving sleeve (25), then entering a dynamic adjustment no-load torque step, acquiring feedback values of a sensor C (15) and a sensor D (23) in real time by a control device, outputting a motor to detect a signal of a servo system A (13) and a servo system to be detected by an industrial control machine until the screw cap reaches a total torque required torque detection system is reached after the screw cap reaches a full torque detection stage (10), the screw shaft driving mechanism (4) drives the screw shaft to rotate through the input transmission shaft (20) to measure the total angle of the steering gear (12), the middle position of the input end of the steering gear (12) is found out to enter a peak regulation stage, the screw shaft driving mechanism (4) drives the screw shaft to rotate at the left and right positions of the middle position by 90 degrees, at the moment, the peak value adjusting screw is adjusted until the idle torque peak value of the screw shaft reaches the technological requirement, at the moment, an F key on a keyboard is pressed down, the system controls the cylinder of the sliding body driving device (6) to pull up, the screw cap driving mechanism (5) is lifted to be limited up, meanwhile, the cylinder piston rod of the clamp tensioning mechanism (9) is lifted up, the clamp bottom plate is loosened, the steering gear assembly is taken down, and the whole assembly and detection process of the steering gear (12) is finished.
The application can realize automatic assembly, detection, high work efficiency, reliable performance, simple and convenient operation, strong automation capability, strict guarantee of assembly quality and remarkable comprehensive economic benefit in the assembly process of the automobile steering gear.
The application can be widely popularized and applied to the assembly detection device of the mechanical steering gear assembly of the automobile steering gear production enterprises.
Claims (1)
1. The utility model provides a mechanical steering gear assembly detection device which characterized in that: the mechanical steering gear assembly detection device comprises a lathe bed (1), an electrical control cabinet (2), a display control box (3), a screw shaft driving mechanism (4), a screw cap driving mechanism (5), a sliding body lifting mechanism (6), a damping limiter (7), a clamp (8), a clamp tensioning mechanism (9), a torque wrench (10), an operation button box (11) and a steering gear (12), wherein the lathe bed (1) is formed by welding square steel and steel plates and is arranged on the ground in an inverted T shape; the electric control cabinet (2) is arranged at the back of the lathe bed (1), an electric control element is arranged in the electric control cabinet, an industrial personal computer is used as an operation controller in the electric part, a data acquisition card and a motion control card are arranged in the industrial personal computer, a special test program is written through VB, feedback values of sensors in the assembling process are acquired in real time, and the servo motors and the cylinders are controlled to act through operation output; the display control box (3) is arranged on the right upper side of the lathe bed (1), a liquid crystal display, a keyboard, a mouse and control buttons are arranged on the display control box (3), and the control buttons are used for controlling the power supply of the device to start/stop through a mouse and keyboard operation test program; the screw shaft driving mechanism (4) is longitudinally fixed right above the lathe bed (1), a servo motor A (13) is arranged on the screw shaft driving mechanism, and the screw shaft of the steering gear is driven to move in positive and negative directions through a torque limiter (14), a torque sensor C (15), a coupler (16), an angle encoder (17), a transmission shaft bearing seat (18), an internal spline transmission sleeve rod (19) and an input transmission shaft (20); the upper end of the input transmission shaft (20) is an external spline shaft, and the external spline shaft penetrates through an inner central hole of the right-angle speed reducer (24) to be sleeved into an internal spline transmission sleeve rod (19) and can be connected with a steering gear screw shaft in a vertical drawing way; the sliding body lifting mechanism (6) is fixed on the left side of the screw shaft driving mechanism (4) above the lathe bed (1), is parallel to the screw shaft driving mechanism (4), and drives the screw cap driving mechanism (5) to move up and down along the linear guide rail by a cylinder fixed on the mounting bracket; the screw cap driving mechanism (5) is transversely arranged at the middle part of the lathe bed (1) and is perpendicular to the screw shaft driving mechanism (4), and the screw cap of the steering gear is driven to move positively and reversely through the servo motor B (21), the coupler (22), the torque sensor D (23), the right-angle speed reducer (24) and the screw cap driving sleeve (25); the damping limiter (7) is arranged below the screw cap driving mechanism (5), is fixed on the lathe bed (1) through mounting brackets at the left side and the right side, and can control the descending displacement of the screw cap driving mechanism (5) by adjusting the mounting height of the damping limiter (7); the clamp (8) is arranged on the working table surface of the lathe bed (1) and is used for installing the steering gear (12), and the clamp sliding plate can slide left and right along a linear guide rail arranged on the working table surface of the lathe bed (1); the clamp tensioning mechanism (9) is arranged at the lower part of the workbench of the lathe bed (1), a cylinder drives the pressing plate to move up and down, and the clamp slide plate is tensioned and used for fixing the clamp (8); the torque wrench (10) is arranged on a tray on the right side of the lathe bed (1), and the torque wrench (10) can be sleeved in 6 holes arranged on the circumference of the screw cap driving sleeve (25) and used for locking a screw cap locking nut of the steering gear (12); the operation button box (11) is arranged right in front of the working table surface of the lathe bed (1), and a double-hand starting button and an emergency stopping button are arranged on the operation button box;
the assembly and detection flow is as follows:
step 1: clamping a workpiece,
step 2: the screw cap is assembled to the pre-tightening torque value,
step 3: the idle torque of the screw shaft is dynamically adjusted,
step 4: the locking nut of the locking screw cap is locked,
step 5: the total number of turns is detected,
step 6: dynamic peak shaving;
the assembly and detection method comprises the following steps:
fixing a steering gear (12) shell onto a clamp (8), screwing a locking screw on a right vertical plate of the clamp (8), gluing a screw cap and a rocker shaft side cap of the steering gear (12) into the shell, pushing a clamp sliding plate to an assembling position on the right side of a workbench, pulling down an input transmission shaft (20) to be connected with the screw shaft of the steering gear (12), pressing down a keyboard 'G' key to select an assembling program, pressing down a double-hand starting button of an operating button box (11), starting a cylinder of a clamp tensioning mechanism (9) by a system to downwards tension the clamp sliding plate, enabling a cylinder piston rod of a sliding body lifting mechanism (6) to downwards extend, pushing a screw cap driving mechanism (5) to downwards, enabling the screw cap driving sleeve (25) to be sleeved into the screw cap of the steering gear (12), entering a screw cap pre-tightening step at the moment, enabling the screw cap driving mechanism (5) to rapidly lock the screw cap to a pre-tightening torque through the driving sleeve (25), then entering a dynamic adjustment no-load torque step, acquiring feedback values of a sensor C (15) and a sensor D (23) in real time by a control device, outputting a motor to detect a signal of a servo system A (13) and a servo system to be detected by an industrial control machine until the screw cap reaches a total torque required torque detection system is reached after the screw cap reaches a full torque detection stage (10), the screw shaft driving mechanism (4) drives the screw shaft to rotate through the input transmission shaft (20) to measure the total angle of the steering gear (12), the middle position of the input end of the steering gear (12) is found out to enter a peak regulation stage, the screw shaft driving mechanism (4) drives the screw shaft to rotate at the left and right positions of the middle position by 90 degrees, at the moment, the peak value adjusting screw is adjusted until the idle torque peak value of the screw shaft reaches the technological requirement, at the moment, an F key on a keyboard is pressed down, the system controls the cylinder of the sliding body driving device (6) to pull up, the screw cap driving mechanism (5) is lifted to be limited up, meanwhile, the cylinder piston rod of the clamp tensioning mechanism (9) is lifted up, the clamp bottom plate is loosened, the steering gear assembly is taken down, and the whole assembly and detection process of the steering gear (12) is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810725045.3A CN109297524B (en) | 2018-07-04 | 2018-07-04 | Mechanical steering gear assembly detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810725045.3A CN109297524B (en) | 2018-07-04 | 2018-07-04 | Mechanical steering gear assembly detection device |
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| CN109297524A CN109297524A (en) | 2019-02-01 |
| CN109297524B true CN109297524B (en) | 2023-09-12 |
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| CN109668746B (en) * | 2019-02-24 | 2023-10-13 | 苏州埃尔迪菲智能机器人有限公司 | Multifunctional detection equipment for steering gear |
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| CN112857775B (en) * | 2021-02-05 | 2023-01-10 | 重庆大江国立精密机械制造有限公司 | Automobile spare and accessory part nut installation check out test set |
| CN113438305B (en) * | 2021-06-23 | 2022-10-18 | 鹤壁国立光电科技股份有限公司 | Ubiquitous data acquisition system |
| CN115144751B (en) * | 2022-09-05 | 2022-11-08 | 西北工业大学 | Traction motor fault diagnosis device and method |
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| 液压动力转向器性能测试系统;尤田;姜涛;李会明;张桂林;;机械工程师(04);全文 * |
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