Workpiece assembly apparatus

Abstract

The application discloses a workpiece assembling device, which comprises a workbench for assembling a first workpiece and a second workpiece, a conveying mechanism for conveying the first workpiece, and an included angle A between the assembling positions of the first workpiece and the second workpiece, wherein one side of the second workpiece is provided with an elastic element, the first workpiece moves to the assembling position through the conveying mechanism, and the first workpiece acts on the second workpiece in the direction of the included angle A during the movement, the second workpiece moves along with the first workpiece, the elastic element simultaneously acts on the second workpiece, and the second workpiece is mounted on the first workpiece through the elastic element, so that the assembling of the first workpiece and the second workpiece is automatically completed while the first workpiece is conveyed. When the first workpiece is conveyed to the assembling position, the first workpiece contacts the second workpiece in the direction of the included angle A, then the first workpiece drives the second workpiece to move while continuing to be conveyed, and meanwhile, the second workpiece is mounted on the first workpiece under the action of the elastic element. The workpiece assembling is automatically completed while the workpiece is conveyed, and the work efficiency is high.

Description

Technical Field

[0001] This invention relates to the field of mechanical technology, specifically to a workpiece assembly device. Background Technology

[0002] In furniture concealed track systems, washers need to be installed on the central rail. The central rail has several positioning posts, and the inner holes of the washers are installed on these posts. The positions of these positioning posts vary for each type of central rail, so the assembly mechanism needs to be adjusted when installing the washers. This results in the assembly mechanism needing to be adjusted every time it's installed, making the production process cumbersome and inefficient.

[0003] Some existing technologies are similar to installing washers on positioning columns. For example, Chinese Patent Document No. CN 102294588A discloses a screw and washer combination machine, which includes a screw vibratory feeder and a washer vibratory feeder on a working platform of the frame. A vertical rotating column is installed on the working platform. The machine also includes a drive motor, the output shaft of which is connected to the rotating column. A ring of hanging plates is provided on the rotating column, and the edges of the hanging plates have evenly distributed hanging notches. Several lifting bushings are installed on the rotating column below the hanging plates. The lifting bushings correspond to the hanging notches, and the upper end surface of the lifting bushings has a washer groove. The tail of the lifting bushing is provided with a lifting bearing. The lower part of the rotating column is also partially covered with a lifting rail. The machine also includes a screw conveying rail and a washer conveying rail. The two ends of the screw conveying rail are connected to the output end of the screw vibratory feeder and the hanging plate, respectively. The input end of the washer conveying rail is connected to the output end of the washer vibratory feeder, and the output end of the washer conveying rail is located above the hanging plate. While this mechanism automates the assembly of screws and washers, significantly improving assembly efficiency and saving considerable labor, it cannot install washers on the positioning posts at different locations for each type of center rail. Therefore, further improvements are needed. Summary of the Invention

[0004] The purpose of this invention is to provide a workpiece assembly device that automatically completes workpiece assembly while conveying workpieces. It can also be applied to the automatic installation of washers at multiple positions on different guide rails. The device features a compact structure and strong practicality, overcoming the shortcomings of existing technologies.

[0005] A workpiece assembly device designed for this purpose includes a worktable for assembling a first workpiece and a second workpiece, and a conveying mechanism for transporting the first workpiece. An included angle A is provided between the assembly positions of the first and second workpieces. An elastic element is provided on one side of the second workpiece. The first workpiece moves to the assembly position via the conveying mechanism. During its movement, a portion of the first workpiece acts on the second workpiece along the direction of included angle A. A portion of the second workpiece follows the movement of the first workpiece, and the elastic element simultaneously acts on the second workpiece. The second workpiece is mounted on the first workpiece via the elastic element, thus achieving automatic assembly of the first and second workpieces while the first workpiece is being transported. When the first workpiece is transported to the assembly position, it contacts the second workpiece along the direction of included angle A. As the first workpiece continues to be transported, it pulls the second workpiece along with it, and the second workpiece is mounted on the first workpiece under the action of the elastic element. The purpose of included angle A is to ensure a pre-positioned assembly between the first and second workpieces when the first workpiece is transported to the assembly position. Furthermore, the assembly of the first and second workpieces is automatically completed while the first workpiece continues to be transported. Because the assembly position is fixed, automatic installation of washers at multiple positions on different guide rails can be achieved. The device has a compact structure and strong applicability.

[0006] A positioning assembly part is provided between the first workpiece and the second workpiece, and the first workpiece and the second workpiece are assembled through the positioning assembly part.

[0007] The positioning assembly unit includes a first positioning part disposed on a first workpiece and a second positioning part disposed on a second workpiece. The first positioning part partially relies on the movement of the first workpiece and acts on the second positioning part along the included angle A, thereby realizing the automatic completion of the pre-positioning assembly of the first workpiece and the second workpiece while conveying the first workpiece. The first positioning part partially relies on the movement of the first workpiece and forms an inclined surface contact with the second positioning part along the included angle A, at which time a pre-positioning assembly is formed between the first workpiece and the second workpiece.

[0008] The elastic element is a spring or sheet. A gap forming an included angle B is provided between the elastic element and the second workpiece. When the first and second workpieces are assembled, the elastic element deforms and limits its movement within this gap. During transport, the first workpiece partially contacts the second workpiece. As the first workpiece continues to be transported (carrying the second workpiece along with it), the elastic element simultaneously uses its elastic force to mount the second workpiece onto the first workpiece. This can be understood as the first workpiece carrying the second workpiece along with it. At this point, the elastic element deforms and mounts the second workpiece onto the first workpiece along the direction of the positioning assembly. When the elastic element deforms, the angle B changes. The gap forming angle B is designed to allow the elastic element to deform during the assembly of the first and second workpieces, thus mounting the second workpiece onto the first workpiece. The deformation of the elastic element is due to the contact between the first and second workpieces, and the fact that the first workpiece drives the second workpiece during transport, causing a change in the original contact point between the elastic element and the second workpiece.

[0009] The workpiece assembly equipment also includes a feeding mechanism fixed on the workpiece assembly equipment. The feeding mechanism includes a feeding trough that conveys the second workpiece to the assembly position. A first limiting part is provided between one end of the feeding trough and the assembly position. The second workpiece moves to the assembly position through the feeding trough. The second workpiece is at least limited to the assembly position by the first limiting part to prevent the second workpiece from shifting during assembly, which would cause the first workpiece and the second workpiece to not be assembled in place.

[0010] The feeding mechanism also includes a storage bin for loading several second workpieces. A movable pusher plate is provided between the feeding chute and the storage bin. The several second workpieces in the storage bin enter the feeding chute by the movement of the pusher plate. The several second workpieces in the storage bin enter the feeding chute in an orderly manner through the pusher plate. When one second workpiece is assembled, another second workpiece reaches the designated assembly position through the feeding chute.

[0011] The feeding mechanism also includes a driver, which is connected to the pusher plate. The driver drives the pusher plate to move between the feeding trough and the storage bin.

[0012] The worktable and / or feeding mechanism of the workpiece assembly equipment are provided with a second limiting part corresponding to the elastic element. Part of the elastic element acts elastically on the second workpiece, and another part of the elastic element acts elastically on the second limiting part.

[0013] The worktable and / or conveying mechanism of the workpiece assembly equipment are provided with a third limiting part corresponding to the first workpiece. When the first workpiece is conveyed and / or when the first workpiece is assembled with the second workpiece, the third limiting part acts on the first workpiece to realize the positioning and conveying of the first workpiece, and prevent the first workpiece from changing position during conveying, which would cause the first workpiece and the second workpiece to not be assembled in place.

[0014] The conveying mechanism is either a belt conveyor or a pneumatically driven conveyor.

[0015] The beneficial technical effects of this invention are as follows:

[0016] When the first workpiece is conveyed to the assembly position, it contacts the second workpiece along the included angle A. As the first workpiece continues to be conveyed, it pulls the second workpiece along with it, and simultaneously, the second workpiece is mounted on the first workpiece under the action of the elastic element. The purpose of included angle A is to ensure that the first and second workpieces form a pre-positioned assembly when the first workpiece is conveyed to the assembly position. Furthermore, the assembly of the first and second workpieces is automatically completed while the first workpiece continues to be conveyed. Because the assembly position is fixed, automatic installation of washers at multiple positions on different guide rails can be achieved. The structure is compact and highly adaptable.

[0017] The first positioning part moves along the first workpiece and forms an inclined contact with the second positioning part at an angle A. At this time, a pre-positioning assembly is formed between the first workpiece and the second workpiece.

[0018] Several second workpieces in the storage bin are fed into the feeding trough in an orderly manner through a pusher plate. When one second workpiece is assembled, another second workpiece arrives at the designated assembly position through the feeding trough. In this way, each second workpiece can be automatically installed on the first workpiece while the first workpiece is being transported. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of a workpiece assembly device according to an embodiment of the present invention.

[0020] Figure 2 for Figure 1 Enlarged view of a portion of the image.

[0021] Figure 3 This is a three-dimensional structural diagram of the first workpiece being transported to the assembly position according to an embodiment of the present invention.

[0022] Figure 4 This is a schematic diagram of the planar structure of the first workpiece being transported to the assembly position according to an embodiment of the present invention.

[0023] Figure 5 This is a schematic diagram of a pre-positioned assembly structure formed between a first workpiece and a second workpiece during the conveying process, according to an embodiment of the present invention.

[0024] Figure 6 This is a schematic diagram of the structure of a second workpiece arranged in an orderly manner on a feeding trough according to an embodiment of the present invention.

[0025] Figure 7 This is a schematic diagram of the connection structure between the driver and the pusher plate according to an embodiment of the present invention.

[0026] Figure 8 This is a three-dimensional structural diagram of the first workpiece being transported to the assembly position according to an embodiment of the present invention from another perspective.

[0027] Figure 9 This is a schematic diagram showing the assembly and disassembly structure of the feeding mechanism according to an embodiment of the present invention. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] See Figures 1-9A workpiece assembly device includes a workbench for assembling a first workpiece 1 and a second workpiece 2, and a conveying mechanism for conveying the first workpiece 1. An included angle A is provided between the assembly positions 13 of the first workpiece 1 and the second workpiece 2. An elastic element 5 is provided on one side of the second workpiece 2. The first workpiece 1 moves to the assembly position 13 through the conveying mechanism. When the first workpiece 1 moves, a portion of the first workpiece 1 acts on the second workpiece 2 along the direction of the included angle A. A portion of the second workpiece 2 moves with the first workpiece 1. The elastic element 5 acts on the second workpiece 2 at the same time. The second workpiece 2 is mounted on the first workpiece 1 through the elastic element 5, so that the assembly of the first workpiece 1 and the second workpiece 2 is automatically completed while the first workpiece 1 is being conveyed.

[0030] A positioning assembly part is provided between the first workpiece 1 and the second workpiece 2, and the first workpiece 1 and the second workpiece 2 are assembled through the positioning assembly part.

[0031] The positioning assembly part includes a first positioning part 3 disposed on the first workpiece 1 and a second positioning part 4 disposed on the second workpiece 2. The first positioning part 3 partially relies on the movement of the first workpiece 1 and acts on the second positioning part 4 along the included angle A direction, so as to realize the automatic completion of the pre-positioning assembly of the first workpiece 1 and the second workpiece 2 while conveying the first workpiece 1.

[0032] See Figure 5 In this embodiment, the first positioning part 3 is a positioning post or positioning ring protruding from the first workpiece, and the second positioning part 4 is an inner hole provided on the second workpiece 2.

[0033] In this embodiment, the first workpiece 1 can be a middle rail, and the second workpiece 2 can be a washer. Alternatively, the first workpiece 1 can be any other profile with a positioning post, and the second workpiece 2 can be any other profile with an inner hole.

[0034] See Figure 5 The elastic element 5 is a spring or a sheet. There is a gap between the elastic element 5 and the second workpiece 2 to form an included angle B. When the first workpiece 1 and the second workpiece 2 are assembled, the elastic element 5 is limited to deform in the gap.

[0035] The workpiece assembly equipment also includes a feeding mechanism 6 fixed on the workpiece assembly equipment. The feeding mechanism 6 includes a feeding trough 7 for conveying the second workpiece 2 to the assembly position 13. A first limiting part 8 is provided between one end of the feeding trough 7 and the assembly position 13. The second workpiece 2 moves to the assembly position 13 through the feeding trough 7. The second workpiece 2 is limited at least by the first limiting part 8 at the assembly position 13.

[0036] In this embodiment, the angle A is formed by the conveying direction of the first workpiece 1 and the second workpiece 2. The calculation method of the angle A is related to the height and outer diameter of the first positioning part 3. The calculation method of the angle A is also related to the diameter of the second positioning part. The size of the angle A is directly proportional to the height of the first positioning part 3. The higher the height of the first positioning part 3 (the position protruding from the first workpiece 1), the larger the angle A.

[0037] In this embodiment, the first limiting part 8 includes the open end of the feeding groove 7 and other material support blocks.

[0038] The feeding mechanism 6 also includes a storage bin 9 for loading several second workpieces 2. A movable pusher plate 10 is provided between the feeding trough 7 and the storage bin 9. Several second workpieces 2 in the storage bin 9 enter the feeding trough 7 and rely on the movement of the pusher plate 10.

[0039] See Figure 7 In this embodiment, the feeding mechanism 6 further includes a front panel 14. The storage bin 9 can be an open trapezoidal structure formed by several plates, or an open U-shaped structure. The several plates are assembled with the front panel 14 to load several second workpieces 2. The pusher plate 10 is provided with a feeding channel. The feeding channel is connected to the feeding groove 7 by the movement of the pusher plate 10, or the feeding channel is disconnected from the feeding groove 7 by the movement of the pusher plate 10. The feeding groove 7 is provided on the front panel 14. The front panel 14 is provided with a sliding groove 16. The pusher plate 10 is installed on the sliding groove 16. The pusher plate 10 slides up and down on the sliding groove 16 by the drive 11.

[0040] See Figure 9 In this embodiment, since the storage bin 9 does not cover the entire conveying trough 7, and the other end of the conveying trough 7 extends between the storage bin 9 and the front panel 14, a material trough pressing block 15 is provided on the conveying trough 7 to prevent the second workpiece 2 from falling out of the conveying trough 7. The material trough pressing block 15 is used as a material blocking block on the conveying trough 7.

[0041] The feeding mechanism 6 also includes a driver 11, which is connected to the pusher plate 10. The driver 11 drives the pusher plate 10 to move between the feeding trough 7 and the storage bin 9.

[0042] See Figure 9 In this embodiment, the driver 11 can be a cylinder or a motor, preferably a cylinder. A connecting block 17 is provided between the telescopic rod of the driver 11 and the pusher plate 10. The connecting block 17 can be provided with a sliding groove or a sliding block. If it is a sliding block, it will cooperate with the slide rail 18. If it is a sliding groove, it can slide with the profile with protrusions, so that the telescopic rod of the driver 11 drives the pusher plate 10 to move along the slide rail 18.

[0043] The workbench and / or feeding mechanism 6 of the workpiece assembly equipment are provided with a second limiting part 12 corresponding to the elastic element 5. Part of the elastic element 5 acts elastically on the second workpiece 2, and another part of the elastic element 5 acts elastically on the second limiting part 12.

[0044] In this embodiment, the first limiting part 8 includes the open end of the feeding groove 7, as well as a material support block and a limiting block. These can be changed according to the shape of the second workpiece 2, which will not be described in detail here.

[0045] The second limiting part 12 can vary depending on the type of elastic member 5. For example, if the elastic member 5 is a spring with several pressure feet, the limiting block of the second limiting part 12 is provided with a groove for mounting the pressure feet.

[0046] Furthermore, a pivot is installed inside the spring, which is inserted into the inner hole of the spring. These features are determined by the type of elastic element 5. They will not be described in detail here.

[0047] The workbench and / or conveying mechanism of the workpiece assembly equipment are provided with a third limiting part corresponding to the first workpiece 1. When the first workpiece 1 is conveyed and / or when the first workpiece 1 is assembled with the second workpiece 2, the third limiting part acts on the first workpiece 1.

[0048] The conveying mechanism is either a belt conveyor or a pneumatically driven conveyor.

[0049] In this embodiment, the conveying mechanism is preferably a pneumatically driven conveying mechanism, specifically a cylinder.

[0050] In this embodiment, the conveying mechanism is preferably a cylinder. The worktable of the workpiece assembly equipment is provided with a third limiting part corresponding to the conveying mechanism. The third limiting part can be composed of two spaced-apart limiting blocks, with a limiting groove between the two limiting blocks. The height of the limiting groove is related to the setting of the first positioning part 3 of the first workpiece 1. Those skilled in the art can adjust it appropriately, which will not be described in detail here.

[0051] See Figure 1 The workpiece assembly equipment also includes a vibratory feeder 19, a control console, etc. Each mechanism on the workpiece assembly equipment works automatically through a preset control program, with a high degree of automation. These control programs are set up through engineering debugging.

[0052] Specifically, this workpiece assembly equipment can install washers on positioning posts at different positions of various guide rails. Powered by a cylinder, the washers are fed into the feeding groove 7 using a pusher plate. The washers are then pressed by a compression spring (elastic element 5). When the guide rail passes through the assembly position, it automatically carries the washers. Under the action of the compression spring, the washers are automatically put onto the positioning posts of the guide rail, realizing the automatic installation of washers at multiple positions on different guide rails. The structure is compact and highly practical.

[0053] The above describes the preferred embodiments of the present invention, illustrating and describing the basic principles, main features, and advantages of the invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A workpiece assembly device, comprising a worktable for assembling a first workpiece (1) and a second workpiece (2), and a conveying mechanism for conveying the first workpiece (1), characterized in that: An angle A is provided between the assembly positions (13) of the first workpiece (1) and the second workpiece (2). An elastic element (5) is provided on one side of the second workpiece (2). The first workpiece (1) moves to the assembly position (13) through the conveying mechanism. When the first workpiece (1) moves, it acts on the second workpiece (2) along the direction of the angle A. The second workpiece (2) moves with the first workpiece (1). The elastic element (5) acts on the second workpiece (2) at the same time. The second workpiece (2) is installed on the first workpiece (1) through the elastic element (5). This realizes that while conveying the first workpiece (1), the assembly of the first workpiece (1) and the second workpiece (2) is automatically completed. A positioning assembly part is provided between the first workpiece (1) and the second workpiece (2), and the first workpiece (1) and the second workpiece (2) are assembled through the positioning assembly part; The positioning assembly part includes a first positioning part (3) disposed on the first workpiece (1) and a second positioning part (4) disposed on the second workpiece (2). The first positioning part (3) partially relies on the movement of the first workpiece (1) and acts on the second positioning part (4) along the included angle A, so as to realize the automatic pre-positioning assembly of the first workpiece (1) and the second workpiece (2) while conveying the first workpiece (1). The elastic element (5) is a spring or a sheet. There is a gap between the elastic element (5) and the second workpiece (2) forming an included angle B. When the first workpiece (1) and the second workpiece (2) are assembled, the elastic element (5) is limited to deform in the gap.

2. The workpiece assembly equipment according to claim 1, characterized in that: It also includes a feeding mechanism (6) fixed on the workpiece assembly equipment. The feeding mechanism (6) includes a feeding trough (7) that transports the second workpiece (2) to the assembly position (13). A first limiting part (8) is provided between one end of the feeding trough (7) and the assembly position (13). The second workpiece (2) moves to the assembly position (13) through the feeding trough (7). The second workpiece (2) is limited at least by the first limiting part (8) on the assembly position (13).

3. The workpiece assembly equipment according to claim 2, characterized in that: The feeding mechanism (6) also includes a storage bin (9) for loading several second workpieces (2). A movable pusher plate (10) is provided between the feeding trough (7) and the storage bin (9). Several second workpieces (2) in the storage bin (9) enter the feeding trough (7) and rely on the movement of the pusher plate (10).

4. The workpiece assembly equipment according to claim 3, characterized in that: The feeding mechanism (6) also includes a driver (11), which is connected to the pusher plate (10). The driver (11) drives the pusher plate (10) to move between the feeding trough (7) and the storage bin (9).

5. The workpiece assembly equipment according to claim 4, characterized in that: The workbench and / or feeding mechanism (6) of the workpiece assembly equipment is provided with a second limiting part (12) corresponding to the elastic element (5). Part of the elastic element (5) acts elastically on the second workpiece (2), and another part of the elastic element (5) acts elastically on the second limiting part (12).

6. The workpiece assembly equipment according to claim 1, characterized in that: The workbench and / or conveying mechanism of the workpiece assembly equipment are provided with a third limiting part corresponding to the first workpiece (1). When the first workpiece (1) is conveyed and / or when the first workpiece (1) is assembled with the second workpiece (2), the third limiting part acts on the first workpiece (1).

7. The workpiece assembly equipment according to claim 1, characterized in that: The conveying mechanism is either a belt conveyor or a pneumatically driven conveyor.

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