An overhead rail loop production line

Abstract

The present invention relates to the technical field of manipulators, and specifically to a sky-rail figure-eight production line, which includes two horizontal trusses symmetrically arranged front and back and two vertical trusses symmetrically arranged left and right. The two horizontal trusses and the two vertical trusses enclose a rectangular truss structure. A rectangular work station is provided below the inner side of the truss structure, and the truss structure and the work station form a figure-eight structure. Transverse sliding tables and longitudinal sliding tables that can move along their length directions are respectively provided on the horizontal trusses and the vertical trusses, and robotic arms are provided on both the transverse sliding tables and the longitudinal sliding tables, and the robotic arms are arranged below the truss structure. The figure-eight structured production line effectively improves the space utilization rate, and the specific dimensions of the truss structure can be adjusted according to the actual space range, with high flexibility. A transverse vision frame and a longitudinal vision frame are provided, which can facilitate the use of a vision camera to accurately position the robot during production operations, facilitate the accurate control of the operations of the robotic arm, and improve the accuracy of the operations.

Description

Technical Field

[0001] The present invention relates to the technical field of manipulators, and specifically to an overhead rail figure-eight production line. Background Art

[0002] Using a truss manipulator to carry goods and process workpieces is a common automated operation method, which can effectively improve the operation efficiency. In many industries, high precision is required for the movement of the robotic arm. However, after the robotic arm of most truss manipulators moves back and forth multiple times during the working process, it will inevitably have a certain gap between the actual position and the preset position of the robotic arm due to various problems, thus affecting the precision of the robotic arm's work. Moreover, the truss manipulator contains many structures, making its connection structure relatively complex. In addition, when processing the components of products with many structural parts, in order to improve the operation efficiency, it is necessary to use multiple robotic arms for operation at the same time. At this time, the length of the linear production line is often increased to meet the requirements, but this method has low space utilization and increases the difficulty for workers to monitor the operation process of the production line. Summary of the Invention

[0003] The purpose of the present invention is to provide an overhead rail figure-eight production line with high space utilization, convenient monitoring, easy precise control of the robotic arm, and simple structure for the above problems.

[0004] To achieve the above object, the present invention discloses an overhead rail figure-eight production line, which includes two transverse trusses symmetrically arranged front and back and two longitudinal trusses symmetrically arranged left and right. The two transverse trusses and the two longitudinal trusses enclose a rectangular truss structure. A rectangular working station is provided below the inner side of the truss structure, and the truss structure and the working station form a figure-eight structure. Transverse sliding tables and longitudinal sliding tables that can move along their lengths are respectively provided on the transverse trusses and the longitudinal trusses. Robotic arms are provided on both the transverse sliding tables and the longitudinal sliding tables, and the robotic arms are arranged below the truss structure. The figure-eight structured production line effectively improves the space utilization rate, and the specific dimensions of the truss structure can be adjusted according to the actual space range, with high flexibility.

[0005] A rectangular transverse vision frame vertically arranged along the transverse direction and located below the transverse truss is provided on the transverse sliding table, and a rectangular longitudinal vision frame vertically arranged along the longitudinal direction and located below the longitudinal truss is provided on the longitudinal sliding table. The robotic arm includes a base connected to the transverse sliding table or the longitudinal sliding table at the starting end, and the base is located within the corresponding transverse vision frame or longitudinal vision frame. The setting of the transverse vision frame and the longitudinal vision frame can facilitate the precise positioning of the robot using a vision camera during production operations, facilitate the precise control of the operation of the robotic arm, and improve the precision of the operation.

[0006] The base of the robotic arm located on the longitudinal sliding table is connected to the lower surface of the longitudinal sliding table. The longitudinal vision frame includes a rectangular mounting frame horizontally arranged at its upper end and a U-shaped frame connected below the mounting frame. The mounting frame is connected to the upper surface of the longitudinal sliding table, and the control tray arranged on the longitudinal sliding table is fixedly connected to the inner end of the upper side of the longitudinal sliding table through a vertically arranged first bracket. The mounting frame includes two symmetrically arranged mounting rods on the left and right, that is, the U-shaped frame and the mounting rods form a rectangular vision detection area.

[0007] Preferably, horizontal maintenance channels are arranged along the length directions on the outer sides of the transverse truss and the longitudinal truss. A first guardrail extending vertically upward is arranged outside the maintenance channels. A maintenance ladder is arranged at one end or both ends of the maintenance channel. A plurality of first columns extending downward at equal intervals along the length direction are arranged on the longitudinal truss, and a plurality of second columns arranged vertically downward are arranged on the transverse truss. The arrangement of the maintenance channel and the maintenance ladder can facilitate the maintenance of the truss structure.

[0008] Preferably, system control stations are arranged on both the transverse sliding table and the longitudinal sliding table through horizontally arranged control trays. Drag chain support plates are arranged along the length directions on both the transverse truss and the longitudinal truss. A drag chain is arranged inside the drag chain support plate. One end of the drag chain is fixedly arranged on the drag chain support plate where it is located, and the other end is electrically connected to the corresponding system control station.

[0009] Preferably, the longitudinal sliding table is horizontally installed on the bottom side of the longitudinal truss. The first column includes a vertically arranged column body and a fixing block extending inward from its upper end. The longitudinal truss is located inside the column body, and the upper end surface of the longitudinal truss is connected to the lower side of the fixing block. The drag chain support plate arranged on the longitudinal truss has an opening facing upward and is arranged on the upper end surface of the first column. The structure of the first column and its connection structure with the longitudinal truss and the drag chain support plate located on the longitudinal truss are simple.

[0010] Preferably, a plurality of installation grooves are opened on the inner side edge of the maintenance channel connected to the longitudinal truss. The installation grooves are arranged in one-to-one correspondence with the first columns. The upper end of the column body passes upward through the installation grooves, that is, the upper end of the column body is arranged above the maintenance channel, and the fixing block is arranged above the maintenance channel. This arrangement makes the structure more reasonable and further improves the space utilization rate.

[0011] Preferably, two longitudinal linear guide rails facing forward and backward are respectively provided along the length direction at the lower parts of the front and rear side surfaces of the longitudinal truss. Two longitudinal sliders symmetrically arranged in the front and rear are provided on the upper surface of the longitudinal sliding table. A C-shaped sliding groove adapted to the longitudinal linear guide rail is formed on the longitudinal slider. The openings of the sliding grooves on the front and rear longitudinal sliders are respectively arranged backward and forward. A first servo motor with a speed reducer is provided on the longitudinal sliding table. The first servo motor with the speed reducer is drivingly connected with a first transmission gear. A first rack adapted to the first transmission gear is provided along the length direction on the lower surface of the longitudinal truss.

[0012] Preferably, the base of the robotic arm located on the longitudinal sliding table is connected to the lower surface of the longitudinal sliding table. The longitudinal vision frame includes a rectangular mounting frame horizontally arranged at its upper end and a U-shaped frame connected below the mounting frame. The mounting frame is connected to the upper surface of the longitudinal sliding table. The control tray arranged on the longitudinal sliding table is fixedly connected to the inner end of the upper side surface of the longitudinal sliding table through a vertically arranged first support. The longitudinal vision frame is mounted on the upper surface of the longitudinal sliding table through the mounting frame, making the connection structure between the longitudinal vision frame and the longitudinal sliding table simple and stable.

[0013] Preferably, the transverse sliding table is vertically arranged inside the transverse truss. Two second linear guide rails symmetrically arranged up and down are provided along the length direction on the inner side wall of the transverse truss. A second servo motor with a speed reducer is provided on the transverse sliding table. The second servo motor with the speed reducer is drivingly connected with a second transmission gear. A second rack adapted to the second transmission gear is provided along the length direction on the inner side wall of the transverse truss.

[0014] Preferably, the transverse sliding table is connected to the robotic arm through a downward extending mounting column. The base of the robotic arm connected to the transverse sliding table is connected to the lower end of the mounting column and is located at the middle position of the transverse vision frame. A horizontally extending mounting plate is connected to the upper end of the transverse sliding table. The control support plate arranged on the transverse sliding table is fixedly connected to the mounting plate through a vertically arranged second support. The connection structure between the transverse sliding table and the components connected thereto is simplified.

[0015] In summary, the beneficial effects of the present invention are as follows: In the present invention, the production line with a square frame structure effectively improves the space utilization rate, and the specific dimensions of the truss structure can be adjusted according to the actual space range, with high flexibility; the setting of the transverse vision frame and the longitudinal vision frame can facilitate the precise positioning of the robot by using a vision camera during production operations, facilitate the precise control of the operation of the robotic arm, and improve the operation precision; the setting of the maintenance passage and the maintenance ladder can facilitate the maintenance of the truss structure; the structure of the first column structure and its connection with the longitudinal truss and the drag chain support plate located on the longitudinal truss is simple and reasonable, further improving the space utilization rate. Description of the Drawings

[0016] Figure 1 is the front view of a sky-rail loop production line of the present invention;

[0017] Figure 2 is the perspective view of the transverse truss and each component thereon;

[0018] Figure 3 is the perspective view of the longitudinal truss and each component thereon;

[0019] Figure 4 is the bottom view of the left longitudinal truss and each component thereon;

[0020] Figure 5 is Figure 4 the bottom view of;

[0021] Figure 6 is Figure 4 the enlarged view of part A in;

[0022] Figure 7 is Figure 5 the enlarged view of part B in;

[0023] In the figure: 10, truss structure; 20, rectangular work station;

[0024] 101, transverse truss; 102, transverse sliding table; 103, transverse vision frame; 104, second column; 105, second linear guide rail; 106, second servo motor with reducer; 107, second rack; 108, mounting column; 109, mounting plate; 110, second bracket;

[0025] 201, longitudinal truss; 202, longitudinal sliding table; 203, longitudinal vision frame; 231, mounting frame; 2311, mounting rod; 232, U-shaped frame; 204, first column; 241, column body; 242, fixing block; 243, mounting groove; 251, first connecting plate; 252, second connecting plate; 206, longitudinal linear guide rail; 207, longitudinal slider; 271, chute; 208, first servo motor with reducer; 281, first driving gear; 209, first rack; 210, slider mounting plate; 211, first bracket; 212, protective plate;

[0026] 301, robotic arm; 311, base; 302, maintenance passage; 303, first guardrail; 304, maintenance ladder; 305, second guardrail; 306, control tray; 307, system control station; 308, drag chain support plate; 309, drag chain. Detailed implementation manners

[0027] The following combines the accompanying drawings and embodiments to further describe in detail the detailed implementation manners of the present invention. The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0028] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0029] The terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more.

[0030] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "mounted", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0031] The following is a description of the preferred embodiments of the present invention in conjunction with the drawings.

[0032] As Figures 1-7 shown, the present invention discloses a sky-rail return-shaped production line, which includes two transverse trusses 101 symmetrically arranged front and back and two longitudinal trusses 201 symmetrically arranged left and right. The two transverse trusses 101 and the two longitudinal trusses 201 enclose a rectangular truss structure 10. Below the inner side of the truss structure 10, there is a rectangular working station 20, and the truss structure 10 and the working station 20 form a return-shaped structure.

[0033] Transverse sliders 102 and longitudinal sliders 202 that can move along their lengths are respectively provided on the transverse trusses 101 and the longitudinal trusses 201. Robotic arms 301 are provided on both the transverse sliders 102 and the longitudinal sliders 202, and the robotic arms 301 are arranged below the truss structure 10. The robotic arm 301 includes a base 311 connected to the transverse slider 102 or the longitudinal slider 202 at the starting end. The base 311 is located within the corresponding transverse vision frame 103 or longitudinal vision frame 203, and a robot hand (not shown in the figure) is provided at the end of the robotic arm 301.

[0034] A rectangular horizontal vision frame 103 is provided on the horizontal sliding table 102, which is located below the horizontal truss 101 and vertically arranged along the horizontal direction. A rectangular vertical vision frame 203 is provided on the vertical sliding table 202, which is located below the vertical truss 201 and vertically arranged along the vertical direction. The settings of the horizontal vision frame 103 and the vertical vision frame 203 facilitate the precise positioning of the robot by using a vision camera during production operations.

[0035] Horizontal maintenance channels 302 are arranged along the length direction on the outer sides of the horizontal truss 101 and the vertical truss 201. A first guardrail 303 is provided vertically upward on the outer side of the maintenance channel 302. A maintenance ladder 304 is arranged at one or both ends of the maintenance channel 302. Specifically, the maintenance ladder 304 is vertically arranged, and a second guardrail 305 is provided on the outer side of the middle and upper parts of the maintenance ladder 304. A ladder passage is formed between the second guardrail 305 and the maintenance ladder 304. The second guardrail 305 includes a plurality of arc-shaped railings arranged at equal intervals from top to bottom. A plurality of first upright columns 204 extending downward are arranged at equal intervals along the length direction on the vertical truss 201, and a plurality of second upright columns 104 are arranged vertically downward on the horizontal truss 101.

[0036] System control stations 307 are provided on the horizontal sliding table 102 and the vertical sliding table 202 through horizontally arranged control trays 306. Drag chain trays 308 are arranged along the length direction on the horizontal truss 101 and the vertical truss 201. A drag chain 309 is arranged in the drag chain tray 308. One end of the drag chain 309 is fixedly arranged on the drag chain tray 308 where it is located, and the other end is electrically connected to the corresponding system control station 307.

[0037] The vertical sliding table 202 is horizontally installed on the bottom side of the vertical truss 201. The first upright column 204 includes a vertically arranged column body 241 and a fixing block 242 extending inward from its upper end. The vertical truss 201 is located inside the column body 241, and the upper end surface of the vertical truss 201 is connected to the lower side surface of the fixing block 242. The drag chain tray 308 arranged on the vertical truss 201 has an upward opening and is arranged on the upper end surface of the first upright column 204. To facilitate the connection between the first upright column 204 and the vertical truss 201, a horizontally arranged first connecting plate 251 is provided on the lower side surface of the fixing block 242. A second connecting plate 252 is arranged at the position where the vertical truss 201 is connected to the fixing block 242. A number of first through holes (not shown in the figure) are provided on the first connecting plate 251, and a number of second through holes (not shown in the figure) corresponding to the first through holes one by one are provided on the second connecting plate 252. The first connecting plate 251 and the second connecting plate 252 are fixed by bolts (not shown in the figure), thereby connecting the vertical truss 201 to the fixing block 242. Further, the lower side surface of the fixing block 242 and the inner side surface of the column body 241 are in arc transition.

[0038] A plurality of mounting grooves 243 are formed in the inner side of the maintenance passage 302 connected to the longitudinal truss 201. The mounting grooves 243 are arranged in one-to-one correspondence with the first columns 204. The upper end of the column body 241 passes upward through the mounting groove 243, that is, the upper end of the column body 241 is arranged above the maintenance passage 302, and the fixing block 242 is arranged above the maintenance passage 302.

[0039] Two longitudinal linear guide rails 206 facing forward and backward are respectively arranged along the length direction at the lower parts of the front and rear side surfaces of the longitudinal truss 201, that is, the two longitudinal linear guide rails 206 on the same longitudinal truss 201 are symmetrically arranged front and rear. Two longitudinal sliders 207 are symmetrically arranged on the upper side surface of the longitudinal sliding table 202. C-shaped sliding grooves 271 adapted to the longitudinal linear guide rails 206 are formed in the longitudinal sliders 207. The openings of the sliding grooves 271 on the front and rear two longitudinal sliders 207 are respectively arranged backward and forward. A first servo motor with a speed reducer 208 is arranged on the longitudinal sliding table 202. The first servo motor with a speed reducer 208 is drivingly connected with a first transmission gear 281. A first rack 209 adapted to the first transmission gear 281 is arranged along the length direction on the lower side surface of the longitudinal truss 201. Further, the slider is fixedly installed on the longitudinal sliding table 202 through a vertically arranged slider mounting plate 210.

[0040] To make the use of the longitudinal linear guide rails 206 safer and more reliable, an L-shaped protective plate 212 is arranged along the length direction at the lower part inside the longitudinal truss 201. The protective plate 212 includes a horizontal part above the inner longitudinal linear guide rail 206 and a horizontal part in front of the inner longitudinal linear guide rail 206.

[0041] The base 311 of the robotic arm 301 located on the longitudinal sliding table 202 is connected to the lower surface of the longitudinal sliding table 202. The longitudinal vision frame 203 includes a rectangular mounting frame 231 horizontally arranged at its upper end and a U-shaped frame 232 connected below the mounting frame 231. The mounting frame 231 is connected to the upper surface of the longitudinal sliding table 202. The control tray 306 arranged on the longitudinal sliding table 202 is fixedly connected to the inner end of the upper side surface of the longitudinal sliding table 202 through a vertically arranged first bracket 211. Specifically, the mounting frame 231 includes two symmetrically arranged left and right mounting rods 2311, that is, the U-shaped frame 232 and the mounting rods 2311 form a rectangular vision detection area. Specifically, the mounting rods 2311 are connected to the upper surface of the longitudinal sliding table 202, making the connection structure between the mounting frame 231 and the longitudinal sliding table 202 simpler.

[0042] The horizontal sliding table 102 is vertically arranged inside the horizontal truss 101. On the inner side wall of the horizontal truss 101, two second linear guide rails 105 are symmetrically arranged up and down along its length direction. On the horizontal sliding table 102, there is a second servo motor with a speed reducer 106. The second servo motor with a speed reducer 106 is drivingly connected to a second transmission gear (not shown in the figure). On the inner side wall of the horizontal truss 101 along its length direction, there is a second rack 107 adapted to the second transmission gear.

[0043] The horizontal sliding table 102 is connected to the robotic arm 301 through a downwardly extending mounting column 108. The base 311 of the robotic arm 301 connected to the horizontal sliding table 102 is connected to the lower end of the mounting column 108 and is located at the middle position of the horizontal vision frame 103. The upper end of the horizontal sliding table 102 is connected with a horizontally extending mounting plate 109. The control support plate arranged on the horizontal sliding table 102 is fixedly connected to the mounting plate 109 through a vertically arranged second bracket 110.

[0044] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art of this technology, without departing from the technical principle of the present invention, several improvements and replacements can be made, and these improvements and replacements should also be regarded as the protection scope of the present invention.

Claims

1. A sky-rail figure-eight production line, characterized in that, it includes two transverse trusses (101) symmetrically arranged front and back and two longitudinal trusses (201) symmetrically arranged left and right. The two transverse trusses (101) and the two longitudinal trusses (201) enclose a rectangular truss structure (10). Below the inner side of the truss structure (10), there is a rectangular work station (20). The truss structure (10) and the work station (20) form a figure-eight structure. Transverse sliding platforms (102) and longitudinal sliding platforms (202) that can move along their length directions are respectively arranged on the transverse trusses (101) and the longitudinal trusses (201). Mechanical arms (301) are arranged on both the transverse sliding platforms (102) and the longitudinal sliding platforms (202). The mechanical arms (301) are arranged below the truss structure (10). A rectangular transverse vision frame (103) that is vertically arranged along the transverse direction and is located below the transverse truss (101) is arranged on the transverse sliding platform (102). A rectangular longitudinal vision frame (203) that is vertically arranged along the longitudinal direction and is located below the longitudinal truss (201) is arranged on the longitudinal sliding platform (202). The mechanical arm (301) includes a base (311) connected to the transverse sliding platform (102) or the longitudinal sliding platform (202) at the starting end. The base (311) is located within the corresponding transverse vision frame (103) or longitudinal vision frame (203). The base (311) of the mechanical arm (301) located on the longitudinal sliding platform (202) is connected to the lower surface of this longitudinal sliding platform (202). The longitudinal vision frame (203) includes a rectangular mounting frame (231) horizontally arranged at its upper end and a U-shaped frame (232) connected below the mounting frame (231). The mounting frame (231) is connected to the upper surface of the longitudinal sliding platform (202). A control tray (306) arranged on the longitudinal sliding platform (202) is fixedly connected to the inner end of the upper side of the longitudinal sliding platform (202) through a vertically arranged first support (211). The mounting frame (231) includes two symmetrically arranged left and right mounting rods (2311), that is, the U-shaped frame (232) and the mounting rods (2311) form a rectangular vision detection area.

2. The sky-rail figure-eight production line according to claim 1, characterized in that, horizontal maintenance channels (302) are arranged along the length directions on the outer sides of both the transverse trusses (101) and the longitudinal trusses (201). First protective fences (303) that extend vertically upward are arranged outside the maintenance channels (302). Maintenance ladders (304) are arranged at one end or both ends of the maintenance channels (302). A plurality of first upright columns (204) that extend downward at equal intervals along the length direction are arranged on the longitudinal trusses (201). A plurality of second upright columns (104) that are vertically arranged downward are arranged on the transverse trusses (101).

3. The sky-rail figure-eight production line according to claim 2, characterized in that, The cross-sliding table (102) and the longitudinal sliding table (202) are both provided with a system control station (307) through a horizontally arranged control tray (306). The transverse truss (101) and the longitudinal truss (201) are both provided with drag chain support plates (308) along their lengths. A drag chain (309) is arranged inside the drag chain support plate (308). One end of the drag chain (309) is fixedly arranged on the drag chain support plate (308) where it is located, and the other end is electrically connected to the corresponding system control station (307).

4. The overhead rail figure-eight production line according to claim 3, characterized in that, the longitudinal sliding table (202) is horizontally installed on the bottom side of the longitudinal truss (201). The first column (204) includes a vertically arranged column body (241) and a fixing block (242) extending inward from its upper end. The longitudinal truss (201) is located inside the column body (241), and the upper end surface of the longitudinal truss (201) is connected to the lower side surface of the fixing block (242). The drag chain support plate (308) arranged on the longitudinal truss (201) has an opening facing upward and is arranged on the upper end surface of the first column (204).

5. The overhead rail figure-eight production line according to claim 4, characterized in that, a plurality of installation grooves (243) are opened on the inner side edge of the maintenance channel (302) connected to the longitudinal truss (201). The installation grooves (243) are arranged in one-to-one correspondence with the first column (204). The upper end of the column body (241) passes upward through the installation groove (243), that is, the upper end of the column body (241) is arranged above the maintenance channel (302), and the fixing block (242) is arranged above the maintenance channel (302).

6. The overhead rail figure-eight production line according to claim 4, characterized in that, two longitudinal linear guide rails (206) facing forward and backward are respectively arranged along the length direction on the lower parts of the front and rear side surfaces of the longitudinal truss (201). Two longitudinally symmetrically arranged longitudinal sliders (207) are arranged on the upper side surface of the longitudinal sliding table (202). A C-shaped sliding groove (271) adapted to the longitudinal linear guide rail (206) is opened on the longitudinal slider (207). The openings of the sliding grooves (271) on the front and rear longitudinal sliders (207) face backward and forward respectively. A first servo motor with a speed reducer (208) is arranged on the longitudinal sliding table (202). The first servo motor with a speed reducer (208) is drivingly connected to a first transmission gear (281). A first rack (209) adapted to the first transmission gear (281) is arranged along the length direction on the lower side surface of the longitudinal truss (201).

7. The overhead rail figure-eight production line according to claim 4, characterized in that, The base (311) of the robotic arm (301) located on the longitudinal sliding table (202) is connected to the lower surface of the longitudinal sliding table (202). The longitudinal vision frame (203) includes a rectangular mounting frame (231) horizontally arranged at its upper end and a U-shaped frame (232) connected below the mounting frame (231). The mounting frame (231) is connected to the upper surface of the longitudinal sliding table (202). The control tray (306) arranged on the longitudinal sliding table (202) is fixedly connected to the inner end of the upper side of the longitudinal sliding table (202) through a vertically arranged first bracket (211).

8. The overhead rail return-shaped production line according to claim 3, characterized in that, the transverse sliding table (102) is vertically arranged inside the transverse truss (101). Two second linear guide rails (105) are symmetrically arranged up and down along the length direction of the inner side wall of the transverse truss (101). A second servo motor with a speed reducer (106) is arranged on the transverse sliding table (102). The second servo motor with a speed reducer (106) is drivingly connected with a second transmission gear. A second rack (107) adapted to the second transmission gear is arranged along the length direction of the inner side wall of the transverse truss (101).

9. The overhead rail return-shaped production line according to claim 8, characterized in that, the transverse sliding table (102) is connected to the robotic arm (301) through a downwardly extending mounting column (108). The base (311) of the robotic arm (301) connected to the transverse sliding table (102) is connected to the lower end of the mounting column (108) and is located at the middle position of the transverse vision frame (103). The upper end of the transverse sliding table (102) is connected with a horizontally extending mounting plate (109). The control tray arranged on the transverse sliding table (102) is fixedly connected to the mounting plate (109) through a vertically arranged second bracket (110).

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