A flat-inclined cantilever artificial pre-arrangement platform

Abstract

The application provides a flat-inclined arm artificial pre-assembly platform, which comprises an assembly ground rail, a centering roller, an end positioning tool and a sliding table tool; the centering roller is slidably connected with the assembly ground rail and is used for bearing and centering the arm; the end positioning tool is fixed at the end of the assembly ground rail and is used for fixing and positioning the arm; the end positioning tool is slidably connected with the assembly ground rail and is used for bearing the arm and assembling the to-be-installed parts on the arm. The application has the advantages of improving the installation precision and efficiency of the artificial pre-assembly arm and simplifying the pre-assembly process.

Description

Technical Field

[0001] This invention belongs to the field of wrist and arm pre-fitting technology, and in particular relates to a horizontal and inclined wrist and arm artificial pre-fitting platform. Background Technology

[0002] The cantilever arm is a crucial component of the overhead contact system, and its condition directly impacts its performance. The cantilever arm consists of multiple parts, including a flat cantilever arm, an angled cantilever arm, a positioning tube, a positioning column, and a positioning support, connected by various connectors. Since the cantilever arm is installed on the upper part of the support column, direct assembly there would increase the workload for workers and raise safety risks. To avoid these issues, components and connectors are typically pre-assembled. After pre-assembly, they are fixed during the assembly process, improving safety and reducing workload. Currently, cantilever arm pre-assembly is done in two ways: automated and manual. One method is manual pre-assembly on-site, but this method suffers from large errors and the inability to accurately complete parts in a single installation. The pre-assembly process is cumbersome and inefficient. The other method involves pre-assembling the cantilever arm using a CNC assembly table in a pre-assembly workshop. However, this method is expensive, and the CNC assembly table is bulky and difficult to move. Therefore, the cantilever arm must be pre-assembled in the workshop before being transported to the site for installation, resulting in low overall efficiency and limited production flexibility. Regardless of the pre-assembly method, the main problem to be solved is how to ensure the parallelism accuracy of the vertical planes of each pre-assembly component without affecting the pre-assembly efficiency. Summary of the Invention

[0003] In view of this, the present invention aims to propose a flat-angled carpal arm artificial pre-assembly platform to improve the installation accuracy and efficiency of artificial pre-assembly of carpal arms and simplify the pre-assembly process.

[0004] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0005] A flat-inclined carpal arm artificial pre-assembly platform.

[0006] Furthermore, it includes an assembly rail, a centering roller, an end positioning fixture, and a slide table fixture; the centering roller is slidably connected to the assembly rail and is used to support and center the cantilever arm; the end positioning fixture is fixed at the end of the assembly rail and is used to fix and position the cantilever arm; the end positioning fixture is slidably connected to the assembly rail and is used to support the cantilever arm and assemble the parts to be installed on the cantilever arm.

[0007] Furthermore, the slide fixture includes a guide rail slider, a mounting platform, a positioning wedge, a retraction stop, a limiting pillow, and a single guide rail; the bottom of the mounting platform is fixedly connected to the guide rail slider to achieve translation on the assembly platform; the limiting pillow is fixed on the mounting platform to limit the part to be installed; the single guide rail is fixed on the mounting platform, and the positioning wedge is slidably connected to the single guide rail; the retraction stop is fixed on the side end of the mounting platform and located at one end of the single guide rail, and a long screw is fixed at the other end of the single guide rail to prevent the positioning wedge from sliding out of the single guide rail; an elbow clamp is installed on the mounting platform, and the elbow clamp is located on the side of the positioning wedge to press / release the positioning wedge.

[0008] Furthermore, the top of the positioning wedge is a trapezoidal wedge, and the middle of the trapezoidal wedge is a U-shaped recess; the trapezoidal wedge fits into the part to be installed to achieve a fixed connection, and the U-shaped recess cooperates with the part to be installed to achieve positioning.

[0009] Furthermore, the end positioning fixture includes a positioning pin, a through pin, and an elbow clamp; the positioning pin is connected to the pin shaft of the wrist arm tube to fix the flat wrist arm; the through pin is connected to the wrist arm tube, and the elbow clamp is in contact with the wrist arm tube to press / release the wrist arm tube to achieve positioning of the inclined wrist arm.

[0010] Furthermore, it also includes an inclined slide table, which is slidably connected to the assembly rail; the inclined slide table includes an extension table, a universal support, a guide plate, and a positioning plate; the positioning plate is fixed on the inclined slide table for positioning the part to be installed, and an inclined connecting part is provided at one corner of the inclined slide table. An elbow clamp is installed on the connecting part and is fastened to the universal support with screws. The extension table is rotatably connected to the connecting part. The universal support is used to support the part to be installed, and the elbow clamp is used to fix the part to be installed; a universal support is installed on the extension table, and the guide plate is fixed to the side end of the extension table to support the part to be installed and adjust the rotation angle of the part to be installed.

[0011] Furthermore, the extension platform is connected to the connecting part by a pivot, so that the angle between the extension platform and the assembly rail is adjustable, which can be used to adapt to various parts to be installed.

[0012] Furthermore, the centering roller includes a bearing pulley, a roller frame, and a roller slide. The roller frame and the roller slide are fixedly connected, and the roller frame and the bearing roller are rotatably connected. The centering roller is used to support the cantilever arm and center the cantilever arm to a designated position.

[0013] Furthermore, the slide fixture also includes an end plate, which is fixedly connected to the mounting platform; a baffle is installed on the end plate, which is rotatably connected to the end plate, and the baffle contacts the tube end of the wrist arm. The end plate positions the wrist arm and verifies its length; the baffle is connected by screws to limit the maximum rotation angle of the baffle.

[0014] Furthermore, the positioning wedge includes trapezoidal wedges of various sizes to accommodate a variety of parts to be installed; the trapezoidal wedges cooperate with the parts to be installed to achieve coplanar vertical surfaces of multiple parts to be installed.

[0015] Furthermore, the working surface of the positioning plate is parallel to the assembly rail, and the working surface of the positioning plate is in contact with the parts to be installed, so that the vertical surfaces of multiple parts to be installed are coplanar.

[0016] Compared with existing technologies, the planar and oblique carpal arm artificial pre-fitting platform of the present invention has the following beneficial effects:

[0017] (1) The present invention provides a flat and inclined carpal arm pre-assembly platform. For the pre-assembly of the flat carpal arm, the end positioning fixture positions the carpal arm tube and the slide table fixture assembles the parts to be installed on the carpal arm. For the pre-assembly of the inclined carpal arm, the inclined slide table can be adjusted to the clamps of the assembly ground rail to adapt to the non-vertical installation requirements of the parts to be installed.

[0018] (2) The positioning wedge block of the present invention contains a variety of trapezoidal wedge blocks of different sizes, which are used to be compatible with a variety of parts to be installed. The trapezoidal wedge blocks cooperate with the parts to be installed to achieve the coplanarity of the vertical surfaces of multiple parts to be installed.

[0019] (3) The planar inclined carpal arm artificial pre-assembly platform of the present invention has a guide plate fixed to the side end of the extension table to support the parts to be installed and adjust the rotation angle of the parts to be installed.

[0020] (4) The flat inclined cantilever manual pre-assembly platform of the present invention has a positioning plate whose working surface is parallel to the assembly ground rail and whose working surface is in contact with the parts to be installed, so as to realize that the vertical surfaces of multiple parts to be installed are coplanar. Attached Figure Description

[0021] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0022] Figure 1 This is a schematic isometric view of an artificial pre-assembly platform for a horizontal and oblique carpal arm as described in an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the isometric view of the artificial pre-assembly platform for the flat carpal arm described in an embodiment of the present invention;

[0024] Figure 3 This is a partial isometric view of the inclined carpal arm artificial pre-assembly platform according to an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the isometric view of the slide table tooling described in an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the isometric view of the slide table tooling described in an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the isometric view of the inclined slide table according to an embodiment of the present invention;

[0028] Figure 7 This is a schematic diagram of the isometric view of the inclined slide table according to an embodiment of the present invention;

[0029] Figure 8 This is a schematic diagram of the isometric view of the centering roller according to an embodiment of the present invention.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1-Assembly rail; 2-Centering roller; 201-Bearing pulley; 202-Idler frame; 203-Idler slide; 3-Slide fixture; 301-Guide rail slider; 302-Mounting platform; 303-Positioning wedge; 304-Return stop; 305-Limiting pillow; 306-Single guide rail; 307-End distance plate; 4-Elbow clamp; 5-Positioning pin; 6-Through pin; 7-Angled slide; 701-Extension table; 702-Universal support; 703-Guide plate; 704-Positioning plate; 8-Worker; 9-Flat cantilever arm working line; 10-Angled cantilever arm working line; 11-Cantilever tube; 12-Parts to be installed. Detailed Implementation

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0033] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0034] A manual pre-assembly platform for horizontal and inclined cantilever arms is mainly used for the pre-assembly of cantilever arms with parts 12 to be installed. Parts 12 typically include support connectors, combined load-bearing cable seats, cantilever arm connectors, positioning rings, combined positioning rings, and inclined positioning columns. The cantilever arm is pre-assembled with different parts 12 to form horizontal and inclined cantilever arms. The manual pre-assembly platform specifically includes an assembly rail 1, centering rollers 2, end positioning fixtures, and a sliding table fixture 3. The centering rollers 2 are slidably connected to the assembly rail 1 to support and center the cantilever arm; the end positioning fixture is fixed at the end of the assembly rail 1 to fix and position the cantilever arm; the end positioning fixture is slidably connected to the assembly rail 1 to support the cantilever arm and assemble the parts 12 to be installed onto the cantilever arm. For the pre-assembly of horizontal cantilever arms, the end positioning fixture is also used to position the cantilever arm tube 11, and the sliding table fixture 3 is used to assemble the parts 12 to be installed onto the cantilever arm. Since some parts 12 to be installed need to be connected and assembled with the arm tube 11 at a certain angle, a slant slide 7 is also needed for the pre-assembly of this slant arm. The slant slide 7 can adjust the clamps of the assembly rail 1 to accommodate the non-vertical installation requirements of the parts 12 to be installed. Specifically, the end positioning fixture used for the pre-assembly of the flat arm is the positioning pin 5; the end positioning fixture used for the pre-assembly of the slant arm is the through pin 6, and it needs to be fixed with an elbow clamp 4.

[0035] Specifically, the centering roller 2 includes a bearing pulley 201, a roller frame 202, and a roller slide 203. The roller frame 202 is fixedly connected to the roller slide 203, and the roller frame 202 is rotatably connected to the bearing roller. The centering roller 2 supports the cantilever arm and centers it to a designated position. The slide fixture 3 also includes an end plate 307, which is fixedly connected to the mounting platform 302. A baffle is installed on the end plate 307, and the baffle is rotatably connected to the end plate 307. The baffle contacts the tube end of the cantilever arm, and the end plate 307 positions the cantilever arm and verifies its length. A connecting screw for the baffle limits the maximum rotation angle of the baffle.

[0036] Specifically, the part to be installed 12 is installed according to the pre-installation lines on the carpal tube 11.

[0037] Implementation 1: Flat wrist arm working line 9.

[0038] like Figure 1-4As shown, the manual pre-assembly platform for the flat arm in this embodiment includes an assembly rail 1, a centering roller 2, a positioning pin 5, and a sliding table fixture 3. Specifically, the sliding table fixture 3 includes a guide rail slider 301, a mounting platform 302, an elbow clamp 4, a positioning wedge 303, a retraction stop 304, a limiting pillow 305, and a single guide rail 306. The guide rail slider 301 is fixedly connected to the bottom of the mounting platform 302, preferably with screws, to enable the sliding table fixture 3 to translate on the assembly rail 1. The limiting pillow 305 is fixed on the mounting platform 302. The limiting pillow 305 can be designed in various shapes to accommodate various different parts 12 to be installed, and is used to limit the position of the parts 12 to be installed. The single guide rail 306 is fixed on the mounting platform 302, and the positioning wedge 303 is slidably connected to the single guide rail 306 to enable translation on the single guide rail 306. A retraction stop 304 is fixed to the side of the mounting platform 302, close to one end of the single guide rail 306. A long screw is fixed to the other end of the single guide rail 306. The long screw and the retraction stop 304 work together to prevent the positioning wedge 303 from sliding out of the single guide rail 306. Additionally, the long screw is easy to unscrew and tighten, facilitating the installation or removal of the positioning wedge 303 from the single guide rail 306. An elbow clamp 4 is fixed to the mounting platform 302 and located on the side of the positioning wedge 303, used to tighten and loosen the positioning wedge 303.

[0039] Specific examples Figure 3-8 As shown, the positioning wedge 303 contains trapezoidal wedges of various sizes to accommodate multiple parts 12 to be installed. Using the assembly rail 1 as a reference plane, the trapezoidal wedges engage with the parts 12 to achieve coplanar vertical surfaces of multiple parts 12. In a preferred embodiment, the top of the positioning wedge 303 is a trapezoidal wedge, and the middle of the trapezoidal wedge has a U-shaped recess. The trapezoidal wedge engages with the parts 12 to achieve a fixed connection, and the U-shaped recess engages with the parts 12 to achieve positioning.

[0040] Specific implementation process: First, place the part to be installed 12 on the slide table fixture 3 and limit it to the designated position. The trapezoidal wedge of the positioning wedge 303 is preferably connected to the part to be installed 12 by screws or pins. At this time, pull down the elbow clamp 4 to press the positioning wedge 303, thereby fixing the part to be installed 12. Then, place the wrist arm tube 11 on the centering roller 2 and align it with the part to be installed 12. The wrist arm tube 11 and the slide table fixture 3 can be slid to make one end of the wrist arm tube 11 connected to the positioning pin 5. Alternatively, the end plate 307 on the slide table fixture 3 at the end of the assembly rail 1 can be used to push the end of the wrist arm tube 11, thus completing the positioning of the wrist arm tube 11. After the wrist arm tube 11 is fixed, the worker 8 connects the wrist arm tube 11 and the part to be installed 12. Finally, the elbow clamp 4 and the positioning pin 5 are released, and the pre-assembled flat wrist arm is taken out to complete the pre-assembly work.

[0041] Example 2, inclined wrist arm working line 10, this example is an improvement based on Example 1:

[0042] like Figure 1-4 As shown, the perforated pin 6 connects to the arm tube 11, and the elbow clamp 4 contacts the arm tube 11 to press and release the arm tube 11, thus positioning the inclined arm. It also includes an inclined slide 7, which is slidably connected to the assembly rail 1. Specifically, as shown... Figure 3-7 As shown, the inclined slide 7 includes an extension platform 701, a universal support 702, an elbow clamp 4, a guide plate 703, and a positioning plate 704. The positioning plate 704 is fixed on the inclined slide 7 and is used to position the part 12 to be installed. An inclined connecting part is provided at one corner of the inclined slide 7. The connecting part is fastened to the elbow clamp 4 and the universal support 702 with screws. The extension platform 701 is rotatably connected to the connecting part. The universal support 702 is used to support the part 12 to be installed, and the elbow clamp 4 is used to fix the part 12 to be installed. Similarly, the universal support 702 is also installed on the extension platform 701. The guide plate 703 is fixed to the side end of the extension platform 701 to support the part 12 to be installed and to adjust the rotation angle of the part 12 to be installed.

[0043] Optionally, the extension table 701 is connected to the connecting part by a pivot, enabling the adjustable angle between the extension table 701 and the assembly rail 1 to accommodate various parts 12 to be installed at different angles. The working surface of the positioning plate 704 is parallel to the assembly rail 1, and the working surface of the positioning plate 704 is in contact with the part 12 to be installed, so that the vertical surfaces of multiple parts 12 to be installed are coplanar.

[0044] Specific implementation process: First, place the part to be installed 12 on the slide table fixture 3 and limit it to the designated position. The trapezoidal wedge of the positioning wedge 303 is matched with the part to be installed 12, preferably by screws or pins. At this time, pull down the elbow clamp 4 to press the positioning wedge 303, and then fix the part to be installed 12. Place the part to be installed 12 with the required installation angle on the universal support 702 of the inclined slide table 7, and match the part to be installed 12 with the guide plate 703 and the positioning plate 704 to correct the installation angle and vertical plane. Then use the elbow clamp 4 to press the part to be installed 12 to complete the positioning of the part to be installed 12. Then, the wrist arm tube 11 is placed on the centering roller 2 and aligned with the part to be installed 12. The slidable wrist arm tube 11 and the slide table fixture 3 are used to make one end of the wrist arm tube 11 connected to the through pin 6. The elbow clamp 4 is used to press the wrist arm tube 11. Alternatively, the end plate 307 on the slide table fixture 3 at the end of the assembly rail 1 can be used to push the end of the wrist arm tube 11 to complete the positioning of the wrist arm tube 11. After the wrist arm tube 11 is fixed, the worker 8 connects the wrist arm tube 11 and the part to be installed 12. Finally, the elbow clamp 4 and the through pin 6 are released, and the pre-assembled flat wrist arm is taken out to complete the pre-assembly work.

[0045] Specifically, the information transmission, signal processing, control methods, and control logic involved in this technical solution can all be implemented using existing technologies.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pre-assembly platform for a horizontally inclined carpal arm, characterized in that: Includes assembly rail (1), centering roller (2), end positioning fixture, and slide table fixture (3); The centering roller (2) is slidably connected to the assembly rail (1) to support and center the cantilever arm; The end positioning fixture is fixed at the end of the assembly rail (1) to fix and position the cantilever arm; The end positioning fixture is slidably connected to the assembly rail (1) to support the cantilever arm and to assemble the parts to be installed (12) onto the cantilever arm; The slide table fixture (3) includes a guide rail slider (301), a mounting table (302), a positioning wedge (303), a retraction stop (304), a limiting pillow (305), and a single guide rail (306); The bottom of the mounting platform (302) is fixedly connected to the guide rail slider (301) to achieve translation on the assembly ground rail (1); The limiting pillow (305) is fixed on the mounting platform (302) to limit the part (12) to be installed; The single guide rail (306) is fixed on the mounting platform (302), and the positioning wedge (303) is slidably connected to the single guide rail (306); A retraction stop (304) is fixed to the side of the mounting platform (302) and located at one end of the single guide rail (306). A long screw is fixed at the other end of the single guide rail (306) to prevent the positioning wedge (303) from sliding out of the single guide rail (306). An elbow clamp is installed on the mounting platform (302) and is located on the side of the positioning wedge (303) to press / release the positioning wedge (303). The top of the positioning wedge (303) is a trapezoidal wedge, and the middle of the trapezoidal wedge is a U-shaped recess; The trapezoidal wedge fits into the part to be installed (12) to achieve a fixed connection, and the U-shaped recess cooperates with the part to be installed (12) to achieve positioning; It also includes a slanted slide (7), which is slidably connected to the assembly ground rail (1); The inclined slide (7) includes an extension table (701), a universal support (702), a guide plate (703), and a positioning plate (704); The positioning plate (704) is fixed on the inclined slide (7) and is used to position the part (12) to be installed. An inclined connecting part is provided at one corner of the inclined slide (7). An elbow clamp is installed on the connecting part and is fastened to the universal bracket (702) with screws. The extension table (701) is rotatably connected to the connecting part. The universal bracket (702) is used to support the part to be installed (12), and the elbow clamp is used to fix the part to be installed (12). A universal support (702) is installed on the extension table (701), and a guide plate (703) is fixed to the side of the extension table (701) to support the part (12) to be installed and to adjust the rotation angle of the part (12) to be installed. The positioning wedge (303) contains a variety of trapezoidal wedges of different sizes to accommodate a variety of parts (12) to be installed; The trapezoidal wedge blocks cooperate with the parts to be installed (12) to achieve the coplanarity of the vertical surfaces of multiple parts to be installed (12); The working surface of the positioning plate (704) is parallel to the assembly rail (1), and the working surface of the positioning plate (704) is in contact with the part to be installed (12), so that the vertical surfaces of multiple parts to be installed (12) are coplanar.

2. The planar and oblique carpal arm artificial pre-assembly platform according to claim 1, characterized in that: The end positioning fixture includes a positioning pin (5), a through pin (6), and an elbow clamp. The positioning pin (5) is connected to the pin shaft of the carpal tube (11) to fix the flat carpal arm; The perforated pin (6) is connected to the wrist arm tube (11), and the elbow clamp three contacts the wrist arm tube (11) to press / release the wrist arm tube (11) to achieve the positioning of the inclined wrist arm.

3. The planar and inclined carpal arm artificial pre-assembly platform according to claim 1, characterized in that: The extension platform (701) is connected to the connecting part by a rotating shaft, so that the angle between the extension platform (701) and the assembly rail (1) can be adjusted to accommodate various parts (12) to be installed.

4. The planar and oblique carpal arm artificial pre-assembly platform according to claim 1, characterized in that: The centering roller (2) includes a bearing pulley (201), a roller frame (202), and a roller slide (203). The roller frame (202) is fixedly connected to the roller slide (203), and the roller frame (202) is rotatably connected to the bearing pulley (201). The centering roller (2) is used to support the wrist arm and center the wrist arm to a designated position.

5. The planar and oblique carpal arm artificial pre-assembly platform according to claim 1, characterized in that: The slide table fixture (3) also includes an end plate (307), which is fixedly connected to the mounting table (302); A baffle is installed on the end plate (307). The baffle is rotatably connected to the end plate (307). The baffle contacts the tube end of the carpal arm. The end plate (307) positions the carpal arm and verifies the length of the carpal arm. The baffle connecting screw is used to limit the maximum rotation angle of the baffle.

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