Displacement mechanism
By adopting parallel guide rails and driving structure design in automobile manufacturing, the problem of power and torque imbalance caused by the motor being placed on one side is solved, and the power distribution and torque balance are achieved, which improves the stability and accuracy of the processing equipment.
Patent Information
- Application Number
- CN202421166880.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-27
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-05-27
AI Technical Summary
In automobile production and manufacturing, in the prior art, the motor is arranged on one side of the processing equipment, resulting in imbalance in power and torque, affecting the stability and accuracy of the processing equipment.
Using two guide rails laid in parallel and a driving structure installed on the displacement frame, the power is evenly distributed to the rollers on both sides through the motor driver and reducer to ensure the torque balance and improve the components such as limit rollers, anti-collision blocks and in-place sensors. Stability and adaptability of the device.
The balance between power and torque is achieved, the stability and accuracy of the working device on the displacement frame is improved, the slippage and device derailment caused by power mismatch are avoided, and the flexibility and compatibility of the device are enhanced.
Smart Images
Figure CN222292765U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a displacement tool, more specifically, it relates to a displacement mechanism. Background Art
[0002] In automobile manufacturing, there is a need to move processing equipment. Generally, motors are used to output power, and rollers are used to drive the processing equipment and guide rails to move relative to each other. Among them, the motor is often set on one side of the processing equipment, and some related technologies use rollers that drive one side. This leads to power imbalance and torque imbalance.
[0003] The present application aims to provide a displacement mechanism to solve the above-mentioned problem. Summary of the invention
[0004] The utility model overcomes the disadvantages of the prior art that the motor is arranged on one side and the single-side driving brings about unbalanced power and torque, and provides a displacement mechanism which can achieve the balance of power and torque and improve the stability of the load device.
[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:
[0006] A displacement mechanism comprises two parallel guide rails, a displacement frame attached to the surface of the guide rails and slidably connected to the guide rails, and a driving structure installed on the displacement frame, wherein the driving structure comprises a driver, a reducer, a connecting shaft and a roller, wherein the driver and the reducer are fixedly connected to the displacement frame and are at the same distance from the two guide rails, a connecting shaft is respectively connected to both sides of the reducer, the displacement frame rolls and rubs with the guide rails through a plurality of rollers, and the other end of the connecting shaft is respectively fixedly connected to a roller on the two guide rails.
[0007] The driving structure drives the displacement frame to move along the guide rail. The driving structure divides the power into two equal parts through a reducer such as a motor driver, and outputs it to the rollers on both sides connected by the connecting shaft, thereby evenly distributing the power. The distance between the motor and the two guide rails in the present application is the same, so that the torque of the entire displacement device is balanced, thereby better maintaining the accuracy of the working device on the displacement frame.
[0008] Preferably, the reducer is connected to the connecting shaft through a flange sleeve and a universal coupling. The reducer converts the power of the driver along the length direction into the width direction, and then through the flange sleeve and the universal coupling, the reducer and the connecting shaft can be at different heights, making the arrangement of the device more flexible and suitable for replacing drivers and reducers of different specifications and models.
[0009] Preferably, guide blocks extending in the width direction are provided at both ends of the displacement frame near the length direction, and the guide blocks are rotatably connected to limit rollers, which fit the side walls of the guide rails. When the displacement frame and the guide rails move relative to each other, the limit rollers roll and rub against the guide rails. The limit rollers limit the displacement frame relative to the guide rails in the width direction to prevent the displacement frame from derailing.
[0010] Preferably, anti-collision blocks are provided at both ends of the displacement frame in the length direction, and limit blocks are provided at both ends of the guide rail. On a plane perpendicular to the length direction, the projection of the anti-collision blocks at least partially overlaps with the limit blocks. The limit blocks and the anti-collision blocks cooperate to firstly prevent the displacement frame from escaping from both ends of the guide rail, and secondly prevent the displacement frame from directly colliding, and utilize the anti-collision blocks to absorb energy, thereby protecting the working device on the displacement frame.
[0011] Preferably, an in-position sensor is fixedly connected to the displacement frame, and a position sensing plate is fixedly connected to the guide rail. The in-position sensor senses the position by detecting the hollow hole of the position sensing plate and feeds back a signal to the driver through the controller.
[0012] Preferably, the guide rail is mounted on a mounting base, and the height of the mounting base is adjustable. The guide rail is leveled by the mounting base.
[0013] Preferably, a plurality of displacement racks and drive structures adapted to the displacement racks are provided on the guide rail.
[0014] Preferably, brushes are provided at both ends of the displacement frame in the length direction, and the brushes are attached to the guide rails and impurities on the guide rails are cleaned when the brushes and the guide rails move relative to each other.
[0015] Preferably, a drag chain bracket is further included, which is outside the guide rail and parallel to the guide rail, and the drag chain on the drag chain bracket provides control signals and energy for the equipment on the displacement rack.
[0016] Preferably, the top height of the displacement frame is higher than that of the driver and the reducer. The structure improves compatibility and avoids interference between the working device and the driver and the reducer.
[0017] Compared with the prior art, the beneficial effects of the utility model are:
[0018] (1) The motor evenly distributes power to the rollers corresponding to the two guide rails to avoid slipping caused by power mismatch on both sides;
[0019] (2) The motor is located in the center position, so that the torque of the entire displacement mechanism is balanced, which can better maintain the accuracy of the working device on the displacement frame. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a top view schematic diagram of the utility model;
[0021] Figure 2 It is a schematic diagram and a partial enlarged diagram of the utility model;
[0022] In the figure:
[0023] Guide rail 1, displacement frame 2, driver 3, reducer 4, connecting shaft 5, roller 6, guide block 7, limit roller 8, anti-collision block 9, limit stopper 10, in-place sensor 11, position sensing plate 12, brush 13, drag chain bracket 14. DETAILED DESCRIPTION
[0024] The present disclosure is further described below in conjunction with the accompanying drawings and embodiments.
[0025] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.
[0026] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.
[0027] In the present disclosure, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", "bottom" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various parts or elements of the present disclosure, and do not specifically refer to any part or element in the present disclosure and should not be understood as limitations on the present disclosure.
[0028] In the present disclosure, terms such as "fixed connection", "connected", "connection", etc. should be understood in a broad sense, indicating that it can be fixedly connected, integrally connected or detachably connected; it can be directly connected or indirectly connected through an intermediate medium. For relevant scientific research or technical personnel in this field, the specific meanings of the above terms in the present disclosure can be determined according to specific circumstances, and they cannot be understood as limitations on the present disclosure.
[0029] Example:
[0030] A displacement mechanism, Figure 1 As shown, it includes two parallel guide rails 1, a displacement frame 2 attached to the surface of the guide rails 1 and slidably connected to the guide rails 1, and a driving structure installed on the displacement frame 2.
[0031] The guide rail 1 is arranged along the length direction, and the two ends are flush. The guide rail 1 is installed on the mounting base, and the height of the mounting base is adjustable. The guide rail 1 is leveled by the mounting base. The height of the mounting base is adjusted by the extension of the screw.
[0032] The displacement frame 2 is rectangular, and is formed by four rods fixed by triangular irons or directly welded, wherein two ends of the rods arranged along the width direction abut against the rods in the length direction.
[0033] The driving structure includes a driver 3, a reducer 4, a connecting shaft 5 and a roller 6. The driver 3 and the reducer are fixedly connected to the displacement frame 2 and are at the same distance from the two guide rails 1. A connecting shaft 5 is connected to each side of the reducer. The displacement frame 2 rolls and rubs with the guide rails 1 through a plurality of rollers 6. The other end of the connecting shaft 5 is fixedly connected to a roller 6 on the two guide rails 1. The top height of the displacement frame 2 is higher than that of the driver 3 and the reducer. The structure improves compatibility and avoids interference between the working device and the driver 3 and the reducer.
[0034] Among them, the driver 3 is a motor. The driving shaft of the driver 3 is arranged along the length direction. The reducer is connected to the driving shaft, and after the power is converted, it is transmitted to the connecting shaft 5 arranged in the width direction through the flange sleeve and the universal coupling. In some embodiments, the reducer is a self-locking reducer. Specifically, the reducer is a worm gear structure, which can realize self-locking while transmitting the power direction, and play a braking role when the motor stops driving, accurately positioning, and eliminating the arrangement of the braking function. Among the rollers 6, the one connected to the connecting shaft 5 is the driving wheel, and the rest are driven wheels.
[0035] The reducer 4 converts the power of the driver 3 along the length direction into the width direction, and then through the flange sleeve and the universal coupling, the reducer and the connecting shaft 5 can be at different heights, making the layout of the device more flexible and suitable for replacing drivers 3 and reducers of different specifications and models.
[0036] Ginseng Figure 2 As shown, part of the displacement frame 2 is removed to show the roller 6. The displacement frame 2 is provided with guide blocks 7 extending in the width direction at both ends near the length direction, and the guide blocks 7 are rotatably connected to limit rollers 8, which are in contact with the side walls of the guide rail 1. When the displacement frame 2 and the guide rail 1 move relative to each other, the limit rollers 8 roll and rub against the guide rail 1. The limit rollers 8 provide a limit for the displacement frame 2 relative to the guide rail 1 in the width direction to prevent the displacement frame 2 from derailing.
[0037] Anti-collision blocks 9 are provided at both ends of the displacement frame 2 in the length direction, and limit blocks 10 are provided at both ends of the guide rail 1. On a plane perpendicular to the length direction, the projection of the anti-collision block 9 at least partially overlaps with the limit block 10. The cooperation between the limit block 10 and the anti-collision block 9 firstly prevents the displacement frame 2 from escaping from both ends of the guide rail 1, and secondly prevents the displacement frame 2 from directly hitting the guide rail 1, and utilizes the anti-collision block 9 to absorb energy, thereby protecting the working device on the displacement frame 2.
[0038] In some embodiments, the anti-collision block and the limit stop are both made of conductive materials, and the displacement frame 2 has a coupler in an open circuit state. When the anti-collision block and the limit stop are fitted to make the displacement frame 2 and the guide rail 1 electrically conductive, the coupler sends a shutdown signal through the controller.
[0039] Brushes 13 are provided at both ends of the displacement rack 2 in the length direction. The brushes 13 are attached to the guide rail 1 and the brushes 13 and the guide rail 1 move relative to each other to clean the impurities on the guide rail 1. A drag chain bracket 14 is also included. The drag chain bracket 14 is outside the guide rail 1 and parallel to the guide rail 1. The drag chain bracket 14 provides control signals and energy for the equipment on the displacement rack 2.
[0040] The displacement rack 2 is fixedly connected with an in-position sensor 11, and the guide rail 1 is fixedly connected with a position sensing plate 12. The in-position sensor 11 senses the position by detecting the hollow hole of the position sensing plate 12 and feeds back a signal to the driver 3 through the controller. In some embodiments, there are multiple in-position sensors 11, which are applied to scenes with different displacement requirements of the working device to meet the needs of short-distance, medium-distance and long-distance displacement. Furthermore, there is also a meter, which records the movement of the displacement rack 2 and assists the in-position sensor 11 in confirming the position of the displacement rack 2.
[0041] A plurality of displacement racks 2 and a driving structure adapted to the displacement racks 2 are arranged on the guide rail 1 .
[0042] The driving structure drives the displacement frame 2 to move along the guide rail 1. The driving structure divides the power into two equal parts through a reducer, such as a motor driver 3, and outputs it to the rollers 6 on both sides connected to the connecting shaft 5, so as to evenly distribute the power. The distance between the motor and the two guide rails 1 in the present application is the same, so that the torque of the entire displacement device is balanced, so that the accuracy of the working device on the displacement frame 2 can be better maintained.
[0043] The above-described embodiments are only preferred solutions of the present invention and are not intended to limit the present invention in any form. Other variations and modifications are possible without exceeding the technical solutions described in the claims.
Claims
1. A displacement mechanism, characterized in that: It includes two parallel guide rails, a displacement frame that fits on the surface of the guide rails and is slidably connected to the guide rails, and a driving structure installed on the displacement frame. The driving structure includes a driver, a reducer, a connecting shaft and a roller. The driver and the reducer are fixedly connected to the displacement frame and are at the same distance from the two guide rails. A connecting shaft is respectively connected to both sides of the reducer. The displacement frame rolls and rubs with the guide rails through a plurality of rollers, and the other end of the connecting shaft is respectively fixedly connected to a roller on the two guide rails.
2. A displacement mechanism according to claim 1, characterized in that: The reducer is connected to the connecting shaft through a flange sleeve and a universal coupling.
3. A displacement mechanism according to claim 2, characterized in that: The top height of the displacement frame is higher than the drive and reducer.
4. A displacement mechanism according to claim 1, characterized in that: Guide blocks extending in the width direction are provided at both ends of the displacement frame near the length direction. The guide blocks are rotatably connected to limit rollers, which fit the side walls of the guide rails. When the displacement frame and the guide rails move relative to each other, the limit rollers roll and rub against the guide rails.
5. A displacement mechanism according to claim 1, characterized in that: Anti-collision blocks are provided at both ends of the displacement frame in the length direction, and limit blocks are provided at both ends of the guide rail. On a plane perpendicular to the length direction, the projection of the anti-collision block at least partially overlaps with the limit block.
6. A displacement mechanism according to claim 1, characterized in that: The displacement frame is fixedly connected with an in-place sensor, and the guide rail is fixedly connected with a position sensing plate. The in-place sensor senses the position by detecting the hollow hole of the position sensing plate and feeds back a signal to the driver through the controller.
7. A displacement mechanism according to claim 1, characterized in that: The guide rail is mounted on a mounting base, and the height of the mounting base is adjustable.
8. A displacement mechanism according to claim 1, characterized in that: Brushes are provided at both ends of the displacement frame in the length direction. The brushes are attached to the guide rails and impurities on the guide rails are cleaned when the brushes and the guide rails move relative to each other.
9. A displacement mechanism according to claim 1, characterized in that: It also includes a drag chain bracket, which is outside the guide rail and parallel to the guide rail. The drag chain on the drag chain bracket provides control signals and energy for equipment on the displacement rack.
10. A displacement mechanism according to any one of claims 1 to 9, characterized in that: A plurality of displacement racks and driving structures matched with the displacement racks are arranged on the guide rail.