A method for pre-fixing a flexible workpiece for a vehicle interior and a workpiece control system

Abstract

This invention provides a pre-fixing method and a workpiece control system for flexible workpieces used in vehicle interiors. Applied to a workpiece control system, the system includes multiple clamping mechanisms. The workpiece is cut out, and at least four clamping points are determined from it. The clamping mechanisms are controlled to clamp the clamping points. At least three reference points, equidistant from each clamping point to its corresponding edge, are arranged on the same straight line. The workpiece is placed on a frame, and a coordinate system is established with a point on the frame on one side of the clamping point as the origin. The distance between each reference point and a coordinate axis is determined. Based on these distances, the clamping mechanisms are controlled to move the clamping points until the differences in distances between each reference point are arranged in an arithmetic progression. This invention improves production efficiency by setting reference points and a coordinate system, and using clamping mechanisms to flatten and position the workpiece.

Description

Technical Field

[0001] This invention relates to the field of vehicle interior technology, and in particular to a method for pre-fixing flexible workpieces for vehicle interiors and a workpiece control system. Background Technology

[0002] Vehicle interior trim refers to automotive products used in the modification of a car's interior, including flexible interior materials such as car seat cushions and car floor mats.

[0003] The process of laying flexible interior trim onto the vehicle's internal frame is often done manually. Operators visually inspect the laying of the flexible trim against the vehicle frame and make adjustments accordingly, which inevitably leads to errors during the laying process and results in low work efficiency. Summary of the Invention

[0004] In view of this, the present invention provides a pre-fixing method and a workpiece control system for flexible workpieces for vehicle interiors, in order to solve the problems of errors and low efficiency when manually laying interiors onto the vehicle frame.

[0005] To address the aforementioned technical problems, this invention provides a pre-fixing method for flexible workpieces used in vehicle interiors, applied to a workpiece control system. The workpiece control system includes multiple clamping mechanisms, and the method includes:

[0006] Cut out the workpiece and determine at least four clamping points from different directions of the workpiece;

[0007] Each clamping mechanism is controlled to clamp one clamping point, so that the workpiece can be moved to the surface of the frame to be installed through the clamping mechanism;

[0008] At least three reference points located on the same straight line are provided between each clamping point and its corresponding edge, wherein the at least three reference points are arranged at equal intervals;

[0009] Place the workpiece on the frame, set up a coordinate system with a point on the frame on the side where the clamping point is located as the origin, so that the origin and the reference point are in the same coordinate system, and determine the distance between each reference point and a coordinate axis in the coordinate system.

[0010] Based on the distance, the clamping mechanism moves the position of the clamping point relative to the frame until the distance differences between each reference point are arranged in an arithmetic progression in the same order. This determines that the flexible workpiece is laid flat and positioned.

[0011] In one embodiment of the present invention, placing the workpiece onto the frame includes:

[0012] Upon receiving the installation instruction, the clamping mechanism is controlled to clamp the workpiece at the clamping point until the workpiece comes into contact with the frame.

[0013] In one embodiment of the present invention, controlling the position of the clamping mechanism relative to the frame based on distance includes:

[0014] When the differences between the judgment distances do not present an arithmetic sequence relationship in the same order, the clamping mechanism is controlled to move the clamping point to adjust the position of the clamping point.

[0015] In one embodiment of the invention, the workpiece control system further includes a console for controlling the clamping mechanism to fix the workpiece to the corresponding position on the frame.

[0016] In one embodiment of the present invention, the workpiece control system further includes sensors disposed around the workpiece for identifying the position of a reference point in the coordinate system and sending coordinate information representing the position of the reference point to the control console.

[0017] When the console receives the coordinate information of the reference point, the control system controls the clamping mechanism to operate on the workpiece so that the distance differences between each reference point are arranged in an arithmetic progression in the same order.

[0018] In one embodiment of the present invention, a switch control button is provided on the control console. When the operator presses the switch control button, the workpiece control system controls the clamping mechanism to perform the corresponding action.

[0019] In one embodiment of the present invention, there are multiple sensors.

[0020] In one embodiment of the present invention, the control console is provided with an operating lever, which is connected to a clamping mechanism and is used to control the direction and distance of the workpiece movement by the clamping mechanism.

[0021] In one embodiment of the invention, the workpiece is cut out, and at least four clamping points are determined from different directions of the workpiece, including:

[0022] Lay the workpiece to be cut flat, and cut the workpiece according to the preset trajectory.

[0023] The present invention also provides a workpiece control system, including a clamping mechanism, an identification sensor and a control console, wherein the control console is connected to the clamping mechanism and the identification sensor, and the control console is used to perform the above-described pre-fixation method for flexible workpieces for vehicle interiors.

[0024] The beneficial effects of the above-described technical solution of the present invention are as follows:

[0025] The pre-fixing method for flexible workpieces used in vehicle interiors of the present invention achieves flattening and positioning of the flexible workpiece on a frame by moving the clamping point of the workpiece through a clamping mechanism and changing the position of the reference point in the coordinate system. Compared with traditional methods that require manual observation of the laying of the flexible workpiece and the frame, which leads to errors, the embodiment of the present invention reduces the amount of workpiece laying error and helps to improve production efficiency. Attached Figure Description

[0026] Figure 1 This is a flowchart of a method for pre-fixing flexible workpieces for vehicle interiors according to an embodiment of the present invention;

[0027] Figure 2 This is a framework diagram of a pre-fixing method for flexible workpieces used in vehicle interiors according to an embodiment of the present invention;

[0028] Figure 3 This is a schematic diagram of the workpiece laying process in the pre-fixation method for flexible workpieces for vehicle interiors according to an embodiment of the present invention. Figure 1 ;

[0029] Figure 4 This is a schematic diagram of the workpiece laying process in the pre-fixation method for flexible workpieces for vehicle interiors according to an embodiment of the present invention. Figure 2 .

[0030] Figure label:

[0031] 10. Clamping mechanism; 20. Workpiece; 30. Control console; 40. Sensor; 50. Frame. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention are within the scope of protection of the present invention.

[0033] To facilitate understanding of the technical solution of this invention, the laying of the flexible workpiece (hereinafter referred to as the workpiece) and the frame will be described first.

[0034] After the workpiece is cut from the workpiece to be cut, since the vehicle frame is irregularly shaped, the position of the workpiece needs to be adjusted according to the laying situation when it is laid on the frame until the workpiece is flat with the surface of the frame. At this time, the workpiece is sewn onto the frame to fix the vehicle interior.

[0035] The following describes in detail, with reference to the accompanying drawings, a method for pre-fixing flexible workpieces for vehicle interiors and a workpiece control system according to embodiments of the present invention.

[0036] refer to Figure 1 and Figure 2 , Figure 1 A flowchart of a pre-fixation method for a flexible workpiece 20 for vehicle interior decoration according to an embodiment of the present invention is shown. Figure 2 A framework diagram of a pre-fixing method for a flexible workpiece 20 for vehicle interior trim according to an embodiment of the present invention is shown. The pre-fixing method for the flexible workpiece 20 for vehicle interior trim can be executed by a workpiece 20 control system. The workpiece 20 control system includes multiple clamping mechanisms 10, which are used to clamp the workpiece 20 and cooperate with the workpiece 20 control system to complete corresponding operations.

[0037] like Figure 1 and Figure 2 As shown, the pre-fixation method for the flexible workpiece 20 for vehicle interior includes S110-S150.

[0038] In S110, workpiece 20 is cut out, and at least four clamping points are determined on workpiece 20.

[0039] The workpiece 20 is cut from the workpiece 20 to be cut to match the shape of the surface of the frame 50. At least four clamping points are determined in different directions of the workpiece 20. For example, the number of clamping points is four. The four clamping points are evenly distributed around the workpiece 20 to prevent the clamping mechanism 10 from damaging the workpiece 20 and to help protect the workpiece 20.

[0040] In S120, each clamping mechanism 10 is controlled to clamp one clamping point.

[0041] For example, there are four clamping mechanisms 10 that match the number of clamping points. The workpiece 20 is moved to the surface of the frame 50 to be installed by the four clamping mechanisms 10 in different directions.

[0042] In S130, at least three reference points located on the same straight line are provided between each clamping point and its corresponding edge. For example, the number of reference points is three, wherein the three reference points are arranged at equal intervals.

[0043] In some embodiments, there may be four or five reference points, or more, and the present invention is not limited thereto.

[0044] In S140, a coordinate system is set with a point on frame 50 as the origin, and the distance from the reference point to a coordinate axis is determined.

[0045] Place the workpiece 20 on the frame 50, set the coordinate system with a point on the frame 50 on the side where the clamping point is located as the origin, so that the origin and the reference point are in the same coordinate system, and determine the distance between each reference point and a coordinate axis in the coordinate system.

[0046] In S150, the control clamping mechanism 10 moves the clamping point so that the workpiece 20 is laid flat on the frame 50.

[0047] Based on the distance, the clamping mechanism 10 moves the position of the clamping point relative to the frame 50 until the distance differences between each reference point are arranged in an arithmetic progression according to the same order, thus determining that the flexible workpiece 20 is laid flat and positioned.

[0048] There are two scenarios where the differences in distances between each reference point are arranged in an arithmetic progression according to the same order.

[0049] Firstly, refer to Figure 3 , Figure 3 This illustration shows the laying of the workpiece 20 in a pre-fixing method for a flexible workpiece 20 for vehicle interiors according to an embodiment of the present invention. Figure 1 .like Figure 3 As shown, there are four reference points, labeled A, B, C, and D, with coordinates A(2,1), B(3,2), C(4,3), and D(5,4). For example, if the direction from the reference point to the horizontal axis of the coordinate system is considered the positive direction, and the direction from the horizontal axis to the reference point is considered the negative direction, then the distance differences between each reference point according to this reference order are 1, 2, 3, and 4. These differences are arranged in an arithmetic progression, indicating that workpiece 20 is laid out neatly.

[0050] Secondly, refer to Figure 4 , Figure 4 This illustration shows the laying of the workpiece 20 in a pre-fixing method for a flexible workpiece 20 for vehicle interiors according to an embodiment of the present invention. Figure 2 .like Figure 4 As shown, there are four reference points, labeled E, F, G, and H, with coordinates E(2,-1), F(3,0), G(4,1), and H(5,2). For example, if the direction from the reference point to the horizontal axis of the coordinate system is considered the positive direction, and the direction from the horizontal axis to the reference point is considered the negative direction, then the distance difference between each reference point according to this reference order is -1, 0, 1, and 2. These differences are arranged in an arithmetic progression, indicating that workpiece 20 is laid out neatly.

[0051] Furthermore, in some other embodiments of the present invention, in S150, until the differences in distances corresponding to each reference point are arranged in an arithmetic progression according to the same order, it may include: designating the direction from the position of the reference point to the vertical axis of the coordinate system as the positive direction and the direction from the vertical axis of the coordinate system to the position of the reference point as the negative direction.

[0052] Compared to existing technologies where errors arise from manually observing the placement of the workpiece 20 and the frame 50, the present invention, through the clamping mechanism 10 moving the clamping point of the workpiece 20, changes the position of the reference point in the coordinate system, thereby achieving the flattening and positioning of the flexible workpiece 20 on the frame 50. This significantly reduces the placement error of the workpiece 20 and helps improve production efficiency.

[0053] In some embodiments of the present invention, the location of the reference point can be identified by a camera and calculated by a controller, thereby determining the position of the reference point relative to the coordinate axis and whether the distance values ​​are arranged in an arithmetic sequence.

[0054] In one embodiment of the present invention, in S140, the workpiece 20 is placed on the frame 50. This step may include: the workpiece 20 control system receives an installation command and controls the clamping mechanism 10 to clamp the clamping point on the workpiece 20 until the workpiece 20 abuts against the frame 50, thereby achieving the initial laying of the workpiece 20.

[0055] In one embodiment of the present invention, in S150, controlling the clamping mechanism 10 to move the position of the clamping point relative to the frame 50 based on the distance may further include: when it is determined that the differences between the distances do not present an arithmetic sequence relationship in the same order, controlling the clamping mechanism 10 to move the clamping point to adjust the position of the clamping point. By using the arithmetic sequence relationship of the differences between the reference point and the coordinate axis, the flatness of the workpiece 20 and the frame 50 is intuitively reflected, greatly reducing errors and helping to improve production efficiency.

[0056] In one embodiment of the present invention, the workpiece 20 control system further includes a console 30, which is used to control the clamping mechanism 10 to fix the workpiece 20 to the corresponding position of the frame 50.

[0057] The following description, in conjunction with the structure of the workpiece 20 control system, explains how the control console 30 controls the clamping mechanism 10 to fix the workpiece 20 to the corresponding position on the frame 50.

[0058] In one embodiment of the present invention, reference is made to... Figure 4 , Figure 4 A framework diagram of a pre-fixing method for a flexible workpiece 20 for vehicle interior trim, according to an embodiment of the present invention, is shown. Figure 4 As shown, the workpiece 20 control system also includes sensors 40 disposed around the workpiece 20. In S140, determining the distance between each reference point and a coordinate axis in the coordinate system may include: the sensor 40 identifying the position of the reference point in the coordinate system and sending the coordinate information representing the position of the reference point to the console 30.

[0059] In S150, based on the distance, the control clamping mechanism 10 moves the position of the clamping point relative to the frame 50, which may further include: when the console 30 receives the coordinate information of the reference point, the control system controls the clamping mechanism 10 to operate on the workpiece 20 so that the distance differences between each reference point are arranged in an arithmetic progression in the same order.

[0060] In one embodiment of the present invention, the console 30 is provided with a switch control button. Correspondingly, in S150, when the console 30 receives the coordinate information of the reference point, the control system controls the clamping mechanism 10 to operate on the workpiece 20. This may include: before the console 30 receives the coordinate information of the reference point, the operator presses the switch control button so that the workpiece 20 control system controls the clamping mechanism 10 to perform the corresponding action.

[0061] In one embodiment of the present invention, there are multiple sensors 40. In S140, the sensor 40 identifies the position of the reference point on the coordinate system. This can be further described as follows: multiple sensors 40 are distributed around the reference point, and the sensing range of the multiple sensors 40 can cover all the reference points, which can prevent the omission of reference points.

[0062] In one embodiment of the present invention, the control console 30 is equipped with an operating lever connected to the clamping mechanism 10. Correspondingly, in S150, the control system controls the clamping mechanism 10 to operate on the workpiece 20. This may include: an operator operating the operating lever to control the direction and distance of the workpiece 20 movement by the clamping mechanism 10. The operator's operation can compensate for any deficiencies in the workpiece 20 placement provided by the workpiece 20 control system, further reducing errors.

[0063] In one embodiment of the present invention, in S110, the workpiece 20 is cut out and at least four clamping points are determined from different directions of the workpiece 20. This may include: laying the workpiece 20 to be cut flat, and the workpiece 20 control system cutting out the workpiece 20 on the workpiece 20 to be cut according to a preset trajectory.

[0064] The present invention also provides a workpiece 20 control system, including a clamping mechanism 10, an identification sensor 40 and a console 30, wherein the console 30 is connected to the clamping mechanism 10 and the identification sensor 40, and the console 30 is used to perform the above-described pre-fixing method for the flexible workpiece 20 for vehicle interior.

[0065] The working principle of the flexible workpiece 20 for vehicle interior use, as described below, is explained in conjunction with the steps of the workpiece 20 control system according to an embodiment of the present invention.

[0066] The workpiece 20 control system cuts out the workpiece 20 and determines at least four clamping points in different directions on the workpiece 20. The workpiece 20 control system controls each clamping mechanism 10 to clamp one clamping point, moving the workpiece 20 to the surface of the frame 50. At least three reference points located on the same straight line are set near each clamping point. A coordinate system is set with a point on the frame 50 as the origin, and the distances from the reference points to any coordinate axis on the coordinate system are determined. When the differences between the corresponding distances of each reference point are arranged in an arithmetic progression according to the same order, it is determined that the flexible workpiece 20 is laid flat. The positioning of the workpiece 20 and the frame 50 is achieved.

[0067] In summary, the embodiments of the present invention move the clamping point of the workpiece 20 by the clamping mechanism 10, thereby changing the position of the reference point in the coordinate system, and realize the flattening and positioning of the flexible workpiece 20 on the frame 50. This greatly reduces the error in the laying of the workpiece 20 and helps to improve production efficiency.

[0068] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship also changes accordingly.

[0069] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method for pre-fixing flexible workpieces for vehicle interior trim, applied to a workpiece control system, the workpiece control system comprising multiple clamping mechanisms, characterized in that, The method includes: The workpiece is cut out, and at least four clamping points are determined from different directions of the workpiece; Each of the clamping mechanisms is controlled to clamp one of the clamping points, so that the workpiece is moved to the surface of the frame to be installed through the clamping mechanism; At least three reference points located on the same straight line are provided between each clamping point and its corresponding edge, wherein the at least three reference points are arranged at equal intervals; The workpiece is placed on the frame, and a coordinate system is set up with a point on the frame on the side where the clamping point is located as the origin, so that the origin and the reference point are in the same coordinate system, and the distance between each reference point and a coordinate axis in the coordinate system is determined. Based on the distance, the clamping mechanism is controlled to move the position of the clamping point relative to the frame until the differences in distances between each reference point in the same order are arranged in an arithmetic progression. Then, the flexible workpiece is determined to be laid flat and positioned. The workpiece control system further includes a console for controlling the clamping mechanism to fix the workpiece to the corresponding position of the frame. The workpiece control system also includes sensors disposed around the workpiece to identify the position of the reference point in the coordinate system and send the coordinate information representing the position of the reference point to the console. When the console receives the coordinate information of the reference point, the control system controls the clamping mechanism to operate on the workpiece so that the distance differences between each reference point are arranged in an arithmetic progression according to the same order.

2. The pre-fixation method for flexible workpieces for vehicle interior trim according to claim 1, characterized in that, The step of placing the workpiece onto the frame includes: Upon receiving the installation command, the clamping mechanism is controlled to clamp the workpiece at the clamping point until the workpiece comes into contact with the frame.

3. The pre-fixation method for flexible workpieces for vehicle interior trim according to claim 1, characterized in that, The step of controlling the clamping mechanism to move the position of the clamping point relative to the frame based on the distance includes: When it is determined that the differences between the distances do not follow an arithmetic sequence in the same order, the clamping mechanism is controlled to move the clamping point to adjust its position.

4. The pre-fixation method for flexible workpieces for vehicle interior trim according to claim 1, characterized in that, The control console is equipped with a switch control button. When the operator presses the switch control button, the workpiece control system controls the clamping mechanism to perform the corresponding action.

5. The pre-fixation method for flexible workpieces for vehicle interior trim according to claim 1, characterized in that, There are multiple sensors.

6. The pre-fixation method for flexible workpieces for vehicle interior trim according to claim 1, characterized in that, The control console is equipped with an operating lever, which is connected to the clamping mechanism and is used to control the direction and distance of the workpiece movement by the clamping mechanism.

7. The pre-fixation method for flexible workpieces for vehicle interior trim according to claim 1, characterized in that, The process of cutting out the workpiece and determining at least four clamping points from different directions of the workpiece includes: Lay the workpiece to be cut flat, and cut the workpiece according to the preset trajectory.

8. A workpiece control system, characterized in that, The device includes a clamping mechanism, an identification sensor, and a control console, wherein the control console is connected to the clamping mechanism and the identification sensor, and the control console is used to perform the pre-fixation method for flexible workpieces for vehicle interiors as described in any one of claims 1-7.

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