Y-direction adjusting device for rear supporting arm supporting leg of chassis line lifting appliance
By designing a Y-direction adjustment device on the chassis spreader conveyor line, using a laser rangefinder and PLC controller combined with a ball screw and a drive motor, high-precision Y-direction position adjustment and positioning are achieved, solving the problem of hanging in multiple models of production The problem of insufficient accuracy of fulcrum adjustment reduces production costs and personnel investment.
Patent Information
- Application Number
- CN202411217235.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2024-12-27
AI Technical Summary
In the field of automobile manufacturing, the existing technology is difficult to meet the chassis spreader conveyor lines with different vehicle models and body sizes. The Y-direction adjustment accuracy of the fulcrum of the spreader is high and the position needs to be ensured. The existing X-direction adjustment accuracy is insufficient and cannot be achieved. Meet the needs of mixed line production.
Design a Y-direction adjustment device for rear arm support legs of the chassis line spreader, including an installation frame, a Y-direction feed mechanism, a Y-direction pin adjustment mechanism, a laser rangefinder and a PLC controller, through a ball screw, a slide rail and The drive motor realizes Y-direction position adjustment, and uses a laser rangefinder and PLC controller to ensure positioning accuracy.
It realizes high-precision Y-direction position adjustment and positioning of the rear support arm leg block of the spreader, and the error is controlled within ±1.5mm, meeting the needs of various models, reducing production costs and personnel investment, and improving the automatic conversion of the production line. reliability.
Smart Images
Figure CN119191084A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of chassis hanger conveyor line fulcrum adjustment, and in particular relates to a Y-axis adjustment device for a rear support arm leg of a chassis line hanger, which is suitable for a chassis hanger conveyor line with many types of vehicles, different body sizes, different body centers of gravity, and mixed production of vehicle models. Background Art
[0002] In the field of automobile manufacturing, factory construction is currently subject to policy and environmental protection restrictions, and multiple models are usually produced in parallel in the same workshop.
[0003] The body hangers in the assembly workshop of large-scale domestic automobile production lines are mainly used for chassis lines, and the hanger fulcrums are usually required to have high positioning accuracy and consistency. The interior line body is transported to the chassis conveyor line through the transfer station to assemble the chassis; currently, most domestic workshops are mixed-line production, and different models have different positions on the hangers. In addition, according to the requirements of the transfer station and assembly station, the positions of the hanger fulcrum and the support arm on the body are different. At present, the most commonly used adjustment of the hanger support arm position in China is X-axis adjustment, and the adjustment accuracy requirement is relatively low.
[0004] Due to the large difference in body widths of different vehicle models, in order to ensure that the widest and narrowest models can be produced on the same line, the support blocks of the hoist legs must be adjusted in the Y direction. At the same time, it is also necessary to ensure that the position of the support blocks cannot move arbitrarily after adjustment. The position adjustment must meet certain position accuracy requirements and be able to position the support blocks to ensure the loading requirements of the vehicle body on the hoist. Summary of the invention
[0005] In order to solve the above problems existing in the prior art, the present invention provides a Y-axis adjustment device for the rear support arm leg of a chassis line hoist, which is used to adjust the support block of the rear support arm leg of the hoist according to different vehicle input requirements to ensure that the hoist can carry a variety of different vehicle types.
[0006] The purpose of the present invention is achieved through the following technical solutions, in conjunction with the accompanying drawings:
[0007] A Y-axis adjustment device for the rear support arm leg of a chassis line sling is used to adjust and position the support block of the rear support arm leg of the sling in the Y axis; it comprises a mounting frame 1, a Y-axis feeding mechanism, a Y-axis adjustment pin mechanism base 3, a Y-axis adjustment pin mechanism, a first laser rangefinder 5, a second laser rangefinder 6 and a PLC controller; the mounting frame 1 is fixed to the side of the chassis sling conveyor line sling adjustment pin station; the Y-axis feeding mechanism is fixed to the mounting frame 1; the Y-axis adjustment pin mechanism base 3 is connected to the Y-axis feeding mechanism, which is The mechanism is driven to move along the Y direction; the Y-direction pin adjustment mechanism is fixed on the Y-direction pin adjustment mechanism base 3, and is used to connect the rear support arm leg support block of the sling; the No. 1 laser rangefinder 5 is arranged on the outer side of the installation frame 1, and is used to detect the current position of the rear support arm leg support block of the sling; the No. 2 laser rangefinder 6 is arranged on the installation frame 1, and is used to detect the current operating position of the Y-direction pin adjustment mechanism base 3; the PLC controller is respectively controlled and connected with the Y-direction feeding mechanism, the Y-direction pin adjustment mechanism, the No. 1 laser rangefinder 5 and the No. 2 laser rangefinder 6.
[0008] Furthermore, the Y-direction feeding mechanism includes a ball screw 21, a slide rail 22, a Y-direction drive motor 23 and a slider; the ball screw 21 and the slide rail 22 are installed on the mounting frame 1 along the Y direction, the output end of the Y-direction drive motor 23 is connected to the ball screw, the slider is connected to the ball screw 21 through a screw nut and is slidably connected to the slide rail; the Y-direction pin adjustment mechanism base 3 is fixed on the slider; the Y-direction drive motor 23 is connected to the PLC controller.
[0009] Furthermore, the Y-axis pin adjusting mechanism includes an X-axis extending cylinder 41, a pin pulling cylinder 42, and a pin pulling fork 43; the X-axis extending cylinder 41 is fixed on the Y-axis pin adjusting mechanism base 3, the output end of the X-axis extending cylinder 41 is connected to the cylinder seat of the pin pulling cylinder 42, and the output end of the pin pulling cylinder 42 is connected to the pin pulling fork 43; the pin pulling fork 43 is driven by the X-axis extending cylinder 41 to extend into the positioning hole of the rear support arm leg of the sling, so that the pin pulling fork 43 is inserted into the plug-in pin of the rear support arm leg support block, and the pin pulling cylinder 42 drives the pin pulling fork 43 to pull the plug-in pin out of the positioning hole.
[0010] After the hoisting arm is in place, the No. 1 laser rangefinder is used to determine the current position of the hoisting arm leg support block, and the Y-axis drive motor is controlled by the PLC controller. The ball screw drives the base of the pin adjustment device to run along the Y direction. At the same time, the No. 2 laser rangefinder detects the current running position of the base of the Y-axis pin adjustment mechanism in real time. The PLC controller scans the current value of the No. 2 laser rangefinder in real time, and compares the value of the No. 2 laser rangefinder with the value measured by the No. 1 laser rangefinder. When the difference between the two is 100±1.5mm, the PLC controller commands the Y-axis drive motor to stop running. At this time, the X-axis extended cylinder drives the pin pulling fork to insert the plug-in pin of the support block. After it is in place, the pin pulling cylinder moves to pull the plug-in pin out of the positioning hole. After it is pulled out in place, the PLC controller commands the Y-axis drive motor to run, and adjusts the position of the base of the Y-axis adjustment pin mechanism through the ball screw. At the same time, the Y-axis adjustment device drives the support block plug-in pin to run 80±1.5mm through the pin pulling fork. The motor stops running, the pin pulling cylinder falls, and the plug-in pin automatically bounces back to another positioning hole. The pin pulling fork is driven and retracted by the X-axis extended cylinder, and the Y-axis drive motor drives the Y-axis adjustment pin base to reset.
[0011] The present invention has the following advantages:
[0012] Various installation methods to meet process requirements, easy and quick installation, simple maintenance;
[0013] High positioning accuracy, the error can be controlled within ±1.5mm;
[0014] Reduce production personnel input and lower operating costs.
[0015] It can meet the requirements of many different types of vehicles, and the automated transfer is reliable and stable. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the arrangement of a Y-axis adjustment device for rear supporting arm legs of a chassis line hoist according to an embodiment of the present invention on a chassis hoist conveyor line;
[0017] Figure 2 It is a top view of the Y-direction adjustment device structure of the rear support arm leg of a chassis wire hoist according to an embodiment of the present invention;
[0018] Figure 3 It is a side view of the Y-direction adjustment device structure of the rear support arm leg of a chassis wire hoist according to an embodiment of the present invention;
[0019] In the figure:
[0020] A-sling rear support arm leg support block; B-chassis line sling rear support arm leg Y-axis adjustment device; C-sling positioning mechanism; D-sling X-axis adjustment mechanism;
[0021] 1-installation frame; 21-ball screw; 22-Y-axis slide rail; 23-Y-axis driving motor; 3-Y-axis pin adjustment mechanism base; 41-X-axis extension cylinder; 42-pin pulling cylinder; 43-pin pulling fork; 5-No. 1 laser rangefinder; 6-No. 2 laser rangefinder. DETAILED DESCRIPTION
[0022] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The examples described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be interpreted as limiting the present invention.
[0023] Example
[0024] like Figure 2 , Figure 3 As shown, this embodiment is a Y-axis adjustment device for the rear support arm leg of the chassis line sling, which is used to realize the Y-axis position adjustment and positioning of the support arm leg support block of the sling; it includes a mounting frame 1, a Y-axis feeding mechanism, a Y-axis adjustment pin mechanism base 3, a Y-axis adjustment pin mechanism, a first laser rangefinder 5, a second laser rangefinder 6 and a PLC controller; the mounting frame 1 is fixed to the side of the chassis sling conveyor line sling adjustment pin station; the Y-axis feeding mechanism is fixed on the mounting frame 1; the Y-axis adjustment pin mechanism base 3 is connected to the Y-axis feeding mechanism, which is driven by the Y-axis feeding mechanism Move along the Y direction; the Y-direction pin adjustment mechanism is fixed on the Y-direction pin adjustment mechanism base 3, and is used to connect the rear support arm leg support block of the sling; the No. 1 laser rangefinder 5 is arranged on the outer side of the installation frame 1, and is used to detect the current position of the rear support arm leg support block of the sling; the No. 2 laser rangefinder 6 is arranged on the installation frame 1, and is used to detect the current operating position of the Y-direction pin adjustment mechanism base 3; the PLC controller is respectively controlled and connected with the Y-direction drive motor 23 of the Y-direction feeding mechanism, the cancellation cylinder 42 of the Y-direction pin adjustment mechanism, the No. 1 laser rangefinder 5 and the No. 2 laser rangefinder 6.
[0025] Furthermore, the Y-direction feeding mechanism includes a ball screw 21, a slide rail 22, a Y-direction drive motor 23 and a slider; the ball screw 21 and the slide rail 22 are installed on the mounting frame 1 along the Y direction, the output end of the Y-direction drive motor 23 is connected to the ball screw, the slider is connected to the ball screw 21 through a screw nut and is slidably connected to the slide rail; the Y-direction pin adjustment mechanism base 3 is fixed on the slider; the Y-direction drive motor 23 is connected to the PLC controller.
[0026] Furthermore, the Y-axis pin adjusting mechanism includes an X-axis extending cylinder 41, a pin pulling cylinder 42, and a pin pulling fork 43; the X-axis extending cylinder 41 is fixed on the Y-axis pin adjusting mechanism base 3, the output end of the X-axis extending cylinder 41 is connected to the cylinder seat of the pin pulling cylinder 42, and the output end of the pin pulling cylinder 42 is connected to the pin pulling fork 43; the pin pulling fork 43 is driven by the X-axis extending cylinder 41 to extend into the positioning hole of the rear support arm leg of the sling, so that the pin pulling fork 43 is inserted into the plug-in pin of the rear support arm leg support block, and the pin pulling cylinder 42 drives the pin pulling fork 43 to pull the plug-in pin out of the positioning hole.
[0027] This embodiment is to adjust the support block of the leg of the rear support arm of the sling in the Y direction, and realize the Y-direction movement through the slide rail slider. The support block of the leg of the sling is slidably connected with the support arm of the sling. The support block of the leg is the movable part, and a pluggable plug-in pin is installed on its side. The support arm of the sling is the fixed part, and a positioning hole plate is installed on its side. When the support block needs to be adjusted in the Y direction, the plug-in pin is pulled out from the positioning hole, moved to the corresponding position in the Y direction, and then the plug-in pin is released and dropped into the positioning hole to ensure that the sling will not move in the Y direction during use, thereby realizing the Y-direction position adjustment and positioning.
[0028] The working principle of this embodiment is described below:
[0029] like Figure 2 As shown, the chassis line hoist rear support arm leg Y-direction adjustment device B is arranged along the Y direction on both sides of the chassis hoist conveying line hoist adjustment station;
[0030] During operation, the unloaded chassis hoist moves to the adjustment station. First, the positioning cylinder of the hoist positioning mechanism C clamps the hoist to roughly position the hoist. The front boom positioning pin of the hoist positioning mechanism C is inserted into the boom to accurately position the hoist. The rear support arm of the hoist is adjusted in the X direction through the hoist X-direction adjustment mechanism D to ensure that the position error of the hoist X direction is less than ±2mm.
[0031] After the X-axis adjustment is completed, the Y-axis adjustment device B described in this embodiment is used to adjust the rear support arm leg support block A in the Y-axis: after the sling support arm is in place, the No. 1 laser rangefinder is used to determine the current position of the rear support arm leg support block A of the sling, and the Y-axis drive motor is controlled by the PLC controller. The ball screw drives the base of the adjustment pin device to run along the Y-axis. At the same time, the No. 2 laser rangefinder 6 detects the current running position of the base of the Y-axis adjustment pin mechanism in real time, and the PLC controller scans the current value of the No. 2 laser rangefinder in real time, and compares the value of the No. 2 laser rangefinder with the value measured by the No. 1 laser rangefinder. The difference between the two is 100±1.5m m, the PLC controller commands the Y-axis drive motor to stop running. At this time, the X-axis extending cylinder drives the pin pulling fork to insert the plug-in pin of the support block. After it is in place, the pin pulling cylinder moves to pull the plug-in pin out of the positioning hole. After it is pulled out in place, the PLC controller commands the Y-axis drive motor to run, and adjusts the base position of the Y-axis pin adjustment mechanism through the ball screw. At the same time, the Y-axis adjustment device drives the support block plug-in pin to run 80±1.5mm through the pin pulling fork. The motor stops running, the pin pulling cylinder falls, and the plug-in pin automatically bounces back to another positioning hole. The pin pulling fork is driven and retracted by the X-axis extending cylinder, and the Y-axis drive motor drives the Y-axis pin adjustment base to reset.
[0032] After the adjustment is completed, the sling positioning mechanism C is opened and the front boom positioning pin is retracted.
[0033] The spreader leaves the distribution station and the next spreader enters the distribution station.
[0034] The above describes in detail the structure, features and effects of the present invention based on the embodiments shown in the drawings. The above is only a preferred embodiment of the present invention, but the present invention is not limited to the scope of implementation shown in the drawings. Any changes made in accordance with the concept of the present invention, or modifications to equivalent embodiments with equivalent changes, which do not exceed the spirit covered by the description and drawings, should be within the protection scope of the present invention.
Claims
1. A Y-direction adjustment device for the rear support arm legs of a chassis wire hoist, characterized in that: The invention comprises a mounting frame (1), a Y-direction feeding mechanism, a Y-direction pinning mechanism base (3), a Y-direction pinning mechanism, a first laser rangefinder (5), a second laser rangefinder (6) and a PLC controller; the mounting frame (1) is fixed to the side of the hanger pinning station of the chassis hanger conveyor line; the Y-direction feeding mechanism is fixed to the mounting frame (1); the Y-direction pinning mechanism base (3) is connected to the Y-direction feeding mechanism and is driven by the Y-direction feeding mechanism to move in the Y-direction; the Y-direction pinning mechanism is fixed to the Y-direction pinning station; The pin mechanism base (3) is used to connect the lifting device rear support arm support leg support block; the first laser rangefinder (5) is arranged on the outer side of the installation frame (1) and is used to detect the current position of the lifting device rear support arm support leg support block; the second laser rangefinder (6) is arranged on the installation frame (1) and is used to detect the current operating position of the Y-direction pin adjustment mechanism base (3); the PLC controller is respectively connected to the Y-direction feeding mechanism, the Y-direction pin adjustment mechanism, the first laser rangefinder (5) and the second laser rangefinder (6).
2. The Y-direction adjustment device for the rear support arm leg of a chassis wire hoist as claimed in claim 1, characterized in that: The Y-direction feeding mechanism comprises a ball screw (21), a slide rail (22), a Y-direction driving motor (23) and a slider; the ball screw (21) and the slide rail (22) are mounted on the mounting frame (1) along the Y direction, the output end of the Y-direction driving motor (23) is connected to the ball screw (21), the slider is connected to the ball screw (21) through a screw nut and is slidably connected to the slide rail; the Y-direction pin adjustment mechanism base (3) is fixed on the slider; the Y-direction driving motor (23) is connected to the PLC controller.
3. The Y-direction adjustment device for the rear support arm leg of the chassis wire hoist as claimed in claim 1, characterized in that: The Y-direction pin adjustment mechanism comprises an X-direction extending cylinder (41), a pin pulling cylinder (42), and a pin pulling fork (43); the X-direction extending cylinder (41) is fixed on the Y-direction pin adjustment mechanism base (3), the output end of the X-direction extending cylinder (41) is connected to the cylinder seat of the pin pulling cylinder (42), and the output end of the pin pulling cylinder (42) is connected to the pin pulling fork (43).