Automatic assembly production line for gas meters

Abstract

The invention belongs to the technical field of gas meter production, and particularly relates to an automatic gas meter assembling production line which comprises an assembling mechanism, a conveying mechanism, a circulating mechanism and a gluing mechanism. The conveying mechanism is located on the left side of the assembling mechanism and used for conveying a bottom shell to the assembling mechanism; the assembling mechanism further comprises a switching mechanism, a discharging tool, a tightening tool and a screwing-in tool. The assembling mechanism is used for installing various parts in the bottom shell. The transfer disc is driven to rotate intermittently through the servo rotating mechanism, so that the bottom shell is driven to sequentially stay below the discharging tool, the tightening tool and the screwing-in tool, the three steps of part placement, part screw fixation and valve installation are carried out, and if a new assembly step needs to be added or a certain station needs to be replaced, the operation is convenient. And only corresponding equipment needs to be added or replaced at the fixed position around the switching disc, the whole production line does not need to be transformed on a large scale, and the carrying and repositioning time is shortened.

Description

Technical Field

[0001] The present invention relates to the technical field of gas meter production, and more particularly to an automatic assembly production line for gas meters. Background Art

[0002] A gas meter is a metering device used to measure the flow of natural gas or other gaseous fuels delivered through pipelines to homes, businesses or industrial sites. The gas meter automatic assembly line is a highly integrated manufacturing system that uses a series of automated equipment and machinery to complete the entire assembly process of gas meters from components to finished products.

[0003] The basic process of gas meter assembly is to first prepare the parts of the gas meter. The outer shell includes the bottom shell and the top cover. The pre-assembled metering movement is placed in the bottom shell. This component is usually the core part of the gas meter and is used to measure the gas flow through the pipeline. Then install the temperature sensor and pressure sensor. These sensors are used to provide information about the gas flowing through, such as temperature and pressure. These two steps can be summarized as installing the components in the bottom shell, and then installing the air inlet valve, air outlet valve and safety shut-off valve as needed. For those key parts that require waterproof and dustproof protection, such as joints, apply appropriate sealants and finally seal them.

[0004] However, in the process of implementing the embodiments of the present invention, the inventors found that there are at least the following defects in the background technology: the existing gas meter automatic assembly production line usually adopts a straight line design. When a process change is required, the entire production line may require large-scale transformation, including rearranging equipment and adjusting the conveying system. Secondly, materials and semi-finished products need to be frequently transported between different workstations, which increases the complexity and cost of logistics management. Therefore, we propose a gas meter automatic assembly production line to solve this problem. Summary of the invention

[0005] The purpose of the present invention is to solve the problems raised in the above background technology and to propose an automatic assembly production line for gas meters.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A gas meter automatic assembly production line comprises an assembly mechanism, a conveying mechanism, a circulation mechanism and a gluing mechanism. The conveying mechanism is located on the left side of the assembly mechanism and is used to convey a bottom shell to the assembly mechanism. The assembly mechanism also comprises a transfer mechanism, a material discharge tool, a tightening tool and a screw-in tool. The assembly mechanism is used to install various parts in the bottom shell. The circulation mechanism is used to remove the assembled bottom shell from the assembly mechanism and convey it to the next processing station. The gluing mechanism is arranged on the conveying path of the circulation mechanism and is used to apply glue to the part of the bottom shell that needs to be protected.

[0007] Furthermore, the discharging tooling includes a frame plate, a discharging barrel is fixedly installed on one side of the frame plate, a vertical groove is opened at the bottom of the discharging barrel, transverse grooves are opened on the left and right inner walls of the vertical groove, an embedded groove is opened on the rear inner wall of the vertical groove, a transverse plate is horizontally slidably installed in the embedded groove, an upper plate and a lower plate are fixedly installed on the front side of the transverse plate, and the upper plate and the lower plate are respectively slidably installed in the corresponding transverse grooves, a telescopic rod is fixedly installed on the rear side of the discharging barrel, an extension plate is fixedly installed on the left side of the transverse plate, and the output end of the telescopic rod is fixedly connected to the extension plate.

[0008] Furthermore, the rear side of the discharge cylinder is fixedly connected to a feed cylinder, and a linear mechanism 1 is arranged on the bottom inner wall of the feed cylinder. The feed cylinder delivers the parts into the discharge cylinder by cooperating with the linear mechanism 1. The bottom of the discharge cylinder is fixedly connected to a discharge cylinder, and a lifting frame is vertically slidably installed on the outer side of the discharge cylinder. A plurality of vertical plates are fixedly installed on the bottom of the lifting frame, and a telescopic plate 1 is fixedly installed on the bottom of the vertical plates. Linear mechanisms 2 are arranged on both sides of the discharge cylinder, and the two linear mechanisms 2 control the lifting frame to perform vertical movement.

[0009] Furthermore, the tightening tool includes two frames, the bottom of the two frames is fixedly connected to a hydraulic cylinder, the output end of the hydraulic cylinder is fixedly connected to a square plate, a plurality of screw guns are fixedly installed on the square plate, the bottom of the square plate is fixedly connected to a limiting sleeve, and a feeding system for use with the screw guns is arranged on the top of the two frames.

[0010] Furthermore, the screw-in tooling includes a linear mechanism three, a sliding member of which is fixedly mounted with a mounting plate, and two screw-in cylinders are arranged on the mounting plate, and the screw-in cylinders are used to screw the valve into the bottom shell.

[0011] Furthermore, the adapter mechanism includes a servo rotation mechanism, and an adapter plate is fixedly installed on the output end of the servo rotation mechanism. A plurality of adapter grooves are opened on the top of the adapter plate, and the adapter grooves are adapted to the bottom shell. The plurality of adapter grooves are arranged at equal intervals around the circumference. The discharge tooling, tightening tooling and screw-in tooling are respectively located above the corresponding adapter grooves, and a limit ring is fixedly installed above the adapter plate.

[0012] Furthermore, the conveying mechanism includes two side frame plates, and the same conveyor belt is arranged between the two side frame plates. A guide plate is fixedly installed on one side of the side frame plate, and the guide plate includes an inclined section and a straight section. The two guide plates are symmetrically arranged, and the two guide plates cooperate to limit the bottom shell to ensure that the bottom shell can enter the transfer groove.

[0013] Furthermore, the circulating mechanism includes two long guide rails, two reciprocating mechanisms and multiple motion mechanisms, the two reciprocating mechanisms are respectively located on both sides of the long guide rails, the reciprocating mechanism includes a linear mechanism four, a short guide rail is fixedly installed on the top of the sliding part of the linear mechanism four, a fixed plate and two track plates are provided on the long guide rails and the short guide rails, the motion mechanism includes a motion plate, two track sleeves are fixedly installed on the bottom of the motion plate, a permanent magnet is provided on the motion plate, and a stator coil is provided in the fixed plate.

[0014] Furthermore, a rotating shaft is fixedly installed on the top of the moving plate, a storage frame is fixedly installed on the top of the rotating shaft, a gear ring and a positioning plate are fixedly installed on the outer side of the rotating shaft, two racks are fixedly installed on the side walls of the long guide rail, the racks cooperate with the gear ring, a metal plate is fixedly installed on the bottom of the positioning plate, an arc groove is opened on the top of the moving plate, magnet plates are arranged at both ends of the arc groove, a linear mechanism five is fixedly installed on the front and rear sides of the top of the storage frame, a telescopic plate two is arranged on the top of the linear mechanism five, and the two telescopic plates two are symmetrically arranged.

[0015] Furthermore, the gluing mechanism includes a U-shaped frame, an electric push rod is fixedly installed on the U-shaped frame, a glue coating cylinder is fixedly installed on the bottom end of the electric push rod, a plurality of glue coating heads are arranged at the bottom of the glue coating cylinder, flat plates are fixedly installed on the left and right sides of the glue coating cylinder, flat grooves are fixedly installed on the front and rear inner walls of the U-shaped frame, and the flat plates are slidably installed in the corresponding flat grooves.

[0016] The beneficial effects of the present invention are: 1. The servo rotation mechanism drives the transfer plate to rotate intermittently, thereby driving the bottom shell to stay under the discharge tooling, tightening tooling and screwing tooling in turn, so as to perform the three steps of parts placement, parts screw fixation and valve installation. The process flow is clear. If a new assembly step needs to be added or a certain station needs to be replaced, it is only necessary to add or replace the corresponding equipment at a fixed position around the transfer plate without large-scale transformation of the entire production line. In addition, the parts are always kept on the transfer plate during the entire assembly process, reducing the time for handling and repositioning.

[0017] 2. The bottom shell is carried by the motion mechanism to move linearly on the long guide rail, and is driven to pass through two gluing mechanisms and two racks with different directions in sequence. The engagement of the rack and the gear ring drives the rotating shaft and the storage frame to rotate synchronously, so that the bottom shell can pass through the gluing mechanism in two orthogonal directions on the plane, which can provide comprehensive gluing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional structural schematic diagram of a gas meter automatic assembly production line proposed by the present invention; Figure 2 A three-dimensional structural schematic diagram of an assembly mechanism of an automatic assembly production line for a gas meter proposed by the present invention; Figure 3 for Figure 2 A partial enlarged view of part A; Figure 4 This is a schematic cross-sectional view of the discharge barrel of a gas meter automatic assembly production line proposed by the present invention; Figure 5 A three-dimensional structural schematic diagram of a conveying mechanism of a gas meter automatic assembly production line proposed by the present invention; Figure 6 A three-dimensional structural schematic diagram of a circulation mechanism of an automatic assembly production line for a gas meter proposed by the present invention; Figure 7 A schematic diagram of the three-dimensional structure of a long guide rail of an automatic assembly production line for a gas meter proposed by the present invention; Figure 8 A three-dimensional structural schematic diagram of a motion mechanism of a gas meter automatic assembly production line proposed by the present invention; Fig. 9 The present invention is a schematic diagram of the three-dimensional structure of a storage frame of an automatic assembly production line for a gas meter.

[0019] In the figure: 1. assembly mechanism; 101. discharge tool; 102. discharge barrel; 103. vertical slot; 104. embedded slot; 105. transverse plate; 106. upper plate; 107. lower plate; 108. telescopic rod; 109. extension plate; 110. discharge barrel; 111. lifting frame; 112. vertical plate; 113. telescopic plate 1; 114. feed barrel; 115. tightening tool; 116. square plate; 117. screw gun; 118. limit sleeve; 119. hydraulic cylinder; 120. screw-in tool; 121. mounting plate; 122. screw-in barrel; 123. servo rotation mechanism; 124. adapter plate; 125. rotation Connecting groove; 126, limiting ring; 2, conveying mechanism; 201, side frame plate; 202, conveyor belt; 203, guide plate; 3, circulation mechanism; 301, long guide rail; 302, linear mechanism four; 303, short guide rail; 304, track plate; 305, fixed plate; 306, moving plate; 307, rotating shaft; 308, storage frame; 309, gear ring; 310, arc groove; 311, linear mechanism five; 312, telescopic plate two; 313, rack; 314, positioning plate; 4, gluing mechanism; 401, U-shaped frame; 402, electric push rod; 403, glue coating cylinder; 404, glue coating head; 405, flat groove. DETAILED DESCRIPTION

[0020] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is to enable those skilled in the art to better understand and implement the subject matter described herein. The functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the present specification. Various examples may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0021] Reference Figure 1-9 A gas meter automatic assembly production line includes an assembly mechanism 1, a conveying mechanism 2, a circulation mechanism 3 and a gluing mechanism 4. The conveying mechanism 2 is located on the left side of the assembly mechanism 1 and is used to convey the bottom shell to the assembly mechanism 1. The assembly mechanism 1 also includes a transfer mechanism, a discharge tool 101, a tightening tool 115 and a screw-in tool 120. The assembly mechanism 1 is used to install various parts in the bottom shell. The circulation mechanism 3 is used to remove the assembled bottom shell from the assembly mechanism 1 and convey it to the next processing station. The gluing mechanism 4 is arranged on the conveying path of the circulation mechanism 3 and is used to apply glue to the part of the bottom shell that needs to be protected.

[0022] like Figure 2 , Figure 3 and Figure 4 As shown, the material discharging tool 101 includes a frame plate, one side of which is fixedly installed with a material discharging barrel 102, a vertical groove 103 is provided at the bottom of the material discharging barrel 102, and transverse grooves are provided on the left and right inner walls of the vertical groove 103, an embedded groove 104 is provided on the rear inner wall of the vertical groove 103, and a transverse plate 105 is horizontally slidably installed in the embedded groove 104, an upper plate 106 and a lower plate 107 are fixedly installed on the front side of the transverse plate 105, and the upper plate 106 and the lower plate 107 are respectively slidably installed in the corresponding transverse grooves, and the front and rear sides of the upper plate 106 and the lower plate 107 are respectively abutted against the front and rear inner walls of the vertical groove 103, a telescopic rod 108 is fixedly installed on the rear side of the material discharging barrel 102, and an extension plate 109 is fixedly installed on the left side of the transverse plate 105, and the output end of the telescopic rod 108 is fixedly connected to the extension plate 109.

[0023] The rear side of the discharge barrel 102 is fixedly connected to a feed barrel 114, and a linear mechanism 1 is arranged on the inner wall of the bottom of the feed barrel 114. The feed barrel 114 delivers the parts into the discharge barrel 102 through the cooperation of the linear mechanism 1. The bottom of the discharge barrel 102 is fixedly connected to a discharge barrel 110, and a lifting frame 111 is vertically slidably installed on the outer side of the discharge barrel 110. A plurality of vertical plates 112 are fixedly installed on the bottom of the lifting frame 111, and a telescopic plate 113 is fixedly installed on the bottom of the vertical plates 112. Linear mechanisms 2 are arranged on both sides of the discharge barrel 110. The linear mechanisms 2 are arranged on the left and right sides of the discharge barrel 110 and are connected to the top of the lifting frame 111. The two linear mechanisms 2 control the lifting frame 111 to perform vertical movement.

[0024] During specific use, the cooperation of the telescopic rod 108 and the extension plate 109 drives the transverse plate 105 to reciprocate horizontally. When the transverse plate 105 abuts against the right inner wall of the vertical groove 103, the linear mechanism in the feed barrel 114 feeds the parts into the vertical groove 103, and the parts fall to the top of the upper plate 106. Multiple parts are stacked above the upper plate 106. After that, the transverse plate 105 moves to abut against the left inner wall of the vertical groove 103. At this time, the upper plate 106 is received in the horizontal groove, and the parts fall onto the lower plate 107. Finally, the transverse plate 105 moves to the right again and abuts against the inner wall of the vertical groove 103 again. One side of the upper plate 106 is inclined, which is convenient for inserting into the gap between the two parts and lifting the upper part. The lower part falls into the discharge barrel 110, and this operation is repeated to realize the intermittent discharge function of the parts.

[0025] During specific use, the parts dropped from the discharge barrel 102 fall on the four telescopic plates 113, and the linear mechanism 2 drives the multiple vertical plates 112 and the telescopic plates 113 to move downward together until the parts move to above the slots on the bottom shell. The four telescopic plates 113 shrink synchronously, and the parts fall into the slots, thereby realizing the process of placing the parts in the bottom shell.

[0026] like Figure 2 and Figure 3 As shown, the tightening tool 115 includes two frames, the bottom of the two frames is fixedly connected with a hydraulic cylinder 119, the output end of the hydraulic cylinder 119 is fixedly connected with a square plate 116, a plurality of screw guns 117 are fixedly installed on the square plate 116, the bottom of the square plate 116 is fixedly connected with a limiting sleeve 118, and the top of the two frames is provided with a feeding system for use with the screw gun 117. The screw gun 117 and the feeding system are the main functional structures of the automatic screw locking machine. The feeding system is responsible for arranging the screws in a certain order and transporting them to the position of the screw gun 117 through a pipeline or other means, and then installing the screws at the specified position through the screw gun 117, fixing the parts and the bottom shell by screws, the hydraulic cylinder 119 is used to adjust the outside of the screw gun 117, and the limiting sleeve 118 is used to cover the parts to ensure that the screws can be installed at the specified position.

[0027] The screw-in tool 120 includes a linear mechanism three, on which a mounting plate 121 is fixedly mounted on a sliding member, on which two screw-in cylinders 122 are arranged, and the screw-in cylinders 122 are used to screw the valve into the bottom shell. The linear mechanism three moves the mounting plate 121 to the correct screw-in target position, and the screw-in cylinders 122 ensure that the valve is tightened with an appropriate torque, neither too loose nor too tight, thereby avoiding leakage or damage.

[0028] It should be noted that the screw-in cylinder 122 is an automatic tightening mechanism, which is used to screw the valve into the threaded hole on the gas meter casing. The screw-in cylinder 122 includes a driving motor, which provides a power source and is responsible for driving the tightening action; the tightening head is hexagonal, plum blossom or other shapes, which is set according to the required valve; the torque control device sets the torque value according to needs.

[0029] like Figure 2 As shown, the transfer mechanism includes a servo rotating mechanism 123, and a transfer plate 124 is fixedly installed on the output end of the servo rotating mechanism 123. A plurality of transfer grooves 125 are provided on the top of the transfer plate 124. The transfer grooves 125 are adapted to the bottom shell, and the plurality of transfer grooves 125 are arranged at equal intervals on the circumference. The material discharge tool 101, the tightening tool 115 and the screw-in tool 120 are respectively located above the corresponding transfer grooves 125. A limit ring 126 is fixedly installed above the transfer plate 124. The multiple transfer grooves 125 on 24 receive the bottom shells transported by the conveying mechanism 2, and the multiple bottom shells are sequentially clamped in the transfer grooves 125. The two sides of the bottom shell are tightly abutted against the inner walls of the two sides of the transfer grooves 125 and rotate with the transfer plate 124. When the bottom shell rotates into the area of ​​the limiting ring 126, the bottom shell is restricted by the limiting ring 126 and the inner wall of the transfer groove 125 and fixed in the transfer groove 125. The relative positions of the multiple bottom shells in the transfer groove 125 remain consistent, which is convenient for subsequent processing operations.

[0030] During specific use, the conveying mechanism 2 inputs the bottom shells onto the transfer plate 124 at intervals, and the bottom shells enter the transfer plate 124 from the leftmost transfer slot 125. As the transfer plate 124 rotates intermittently, the bottom shells stay under the discharge tooling 101, the tightening tooling 115 and the screwing tooling 120 in turn, and perform the three steps of parts placement, parts screw fixing and valve installation in turn, and finally enter the circulation mechanism 3 from the rightmost transfer slot 125.

[0031] like Figure 5 As shown, the conveying mechanism 2 includes two side frame plates 201, and the same conveyor belt 202 is arranged between the two side frame plates 201. A guide plate 203 is fixedly installed on one side of the side frame plate 201. The guide plate 203 includes an inclined section and a straight section. The two guide plates 203 are symmetrically arranged, and the two guide plates 203 cooperate with each other to limit the bottom shell to ensure that the bottom shell can enter the transfer groove 125.

[0032] like Figure 6 , Figure 7 and Figure 8As shown, the circulating mechanism 3 includes two long guide rails 301, two reciprocating mechanisms and multiple motion mechanisms. The two reciprocating mechanisms are respectively located on both sides of the long guide rail 301. The reciprocating mechanism includes a linear mechanism 302. A short guide rail 303 is fixedly installed on the top of the sliding part of the linear mechanism 302. A fixed plate 305 and two track plates 304 are provided on the long guide rail 301 and the short guide rail 303. The motion mechanism includes a motion plate 306. Two track sleeves are fixedly installed on the bottom of the motion plate 306. A permanent magnet is provided on the motion plate 306. A stator coil is provided in the fixed plate 305.

[0033] like Figure 8 and Fig. 9 As shown, a rotating shaft 307 is fixedly installed on the top of the moving plate 306, a storage frame 308 is fixedly installed on the top of the rotating shaft 307, a gear ring 309 and a positioning plate 314 are fixedly installed on the outer side of the rotating shaft 307, two racks 313 are fixedly installed on the side walls of the long guide rail 301, the racks 313 cooperate with the gear ring 309, a metal plate is fixedly installed on the bottom of the positioning plate 314, an arc groove 310 is opened on the top of the moving plate 306, magnet plates are arranged at both ends of the arc groove 310, linear mechanisms 5 311 are fixedly installed on the front and back sides of the top of the storage frame 308, telescopic plates 2 312 are arranged on the top of the linear mechanism 5 311, and the two telescopic plates 2 312 are symmetrically arranged.

[0034] During specific use, when the bottom shell moves to the rightmost adapter slot 125, a motion mechanism stays on the right side of the adapter slot 125, and drives the two telescopic plates 2 312 to the left side of the bottom shell through the linear mechanism 5 311, and then the telescopic plates 2 312 extend out to abut against the left side of the bottom shell, and the linear mechanism 5 311 resets to push the bottom shell into the storage frame 308, and the bottom shell is fixed in the storage frame 308 through the cooperation of the two telescopic plates 2 312 and the inner wall of the storage frame 308, and the outer wall of the bottom shell is tightly fitted with the inner wall of the storage frame 308, and then the motion mechanism enters the long guide rail 301 from the short guide rail 303 through the cooperation of the electronic coil and the permanent magnet.

[0035] It should be noted that the moving plate 306 is driven by a linear motor. A permanent magnet is installed on the moving plate 306, and a stator coil is installed on the fixed plate 305. When current passes through the stator coil, the generated magnetic field will push the permanent magnet on the moving plate 306 to move along the two track plates 304, so that the moving mechanism can move linearly on the short guide rail 303 and the long guide rail 301. The short guide rail and the long guide rail are of the same model and size, which is equivalent to a guide rail divided into two sections. When the moving mechanism enters or leaves the long guide rail 301 from the short guide rail 303, the moving plate 306 is simultaneously located above the short guide rail 303 and the long guide rail 301, and the track sleeve is simultaneously connected to the short guide rail 303 and the long guide rail 301, and the stator coils in the two fixed plates 305 on the short guide rail 303 and the long guide rail 301 jointly drive the moving plate 306.

[0036] like Figure 6 As shown, the gluing mechanism 4 includes a U-shaped frame 401, on which an electric push rod 402 is fixedly installed, a glue coating cylinder 403 is fixedly installed at the bottom end of the electric push rod 402, a plurality of glue coating heads 404 are arranged at the bottom of the glue coating cylinder 403, flat plates are fixedly installed on the left and right sides of the glue coating cylinder 403, flat grooves 405 are fixedly installed on the inner walls of the front and rear sides of the U-shaped frame 401, and the flat plates are slidably installed in the corresponding flat grooves 405.

[0037] When in use, when the moving mechanism carrying the bottom shell moves from left to right along the long guide rail 301 on the rear side, it first passes through the first gluing mechanism 4, and the electric push rod 402 drives the glue coating cylinder 403 to move downward until the glue coating head 404 abuts against the bottom shell, and the first gluing operation of the bottom shell is performed. After that, the moving mechanism passes through the rack 313 area on the inner wall of the rear side of the long guide rail 301, and the cooperation of the rack 313 and the gear ring 309 drives the rotating shaft 307 to rotate, thereby driving the storage frame 308 to rotate ninety degrees, and then, through The second gluing mechanism 4 performs the second gluing operation on the bottom shell. By evenly applying glue in two orthogonal directions on the plane, the gluing process can be comprehensive. Finally, the moving mechanism passes through the rack 313 area on the front inner wall of the long guide rail 301 to reset the storage frame 308 to its initial orientation. It should be supplemented that each time the rotating shaft 307 rotates ninety degrees, the positioning plate 314 moves to the two ends of the arc groove 310, and the rotating shaft 307 is locked by adsorption of the magnet plate and the metal plate on the positioning plate 314.

[0038] It is further explained that after the motion mechanism carries the bottom shell to complete the gluing operation, it enters the short guide rail 303 on the right from the long guide rail 301. At this position, the robot grabs the bottom shell and transfers it to another assembly line for subsequent processing. The linear mechanism four 302 on the right drives the short guide rail 303 to move forward, so that the short guide rail 303 is aligned with the long guide rail 301 on the front side. The empty motion mechanism moves to the leftmost side of the front long guide rail 301, and then enters the short guide rail 303 on the left. Finally, it is transported by the linear mechanism four 302 on the left to the gap of the right transfer slot 125 for the next cycle. It is particularly explained that the number of motion mechanisms can be set according to the production rhythm.

[0039] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A gas meter automatic assembly production line, characterized in that: The invention comprises an assembly mechanism (1), a conveying mechanism (2), a circulation mechanism (3) and a gluing mechanism (4); the conveying mechanism (2) is located on the left side of the assembly mechanism (1) and is used to convey a bottom shell to the assembly mechanism (1); the assembly mechanism (1) also comprises a transfer mechanism, a material discharge tool (101), a tightening tool (115) and a screw-in tool (120); the assembly mechanism (1) is used to install various parts in the bottom shell; the circulation mechanism (3) is used to remove the assembled bottom shell from the assembly mechanism (1) and convey it to the next processing station; the gluing mechanism (4) is arranged on the conveying path of the circulation mechanism (3) and is used to apply glue to a portion of the bottom shell that needs to be protected.

2. The automatic assembly production line for gas meters according to claim 1, characterized in that: The material discharging tool (101) comprises a frame plate, a material discharging barrel (102) is fixedly mounted on one side of the frame plate, a vertical groove (103) is provided at the bottom of the material discharging barrel (102), transverse grooves are provided on the left and right inner walls of the vertical groove (103), an embedded groove (104) is provided on the rear inner wall of the vertical groove (103), a transverse plate (105) is horizontally slidably mounted in the embedded groove (104), an upper plate (106) and a lower plate (107) are fixedly mounted on the front side of the transverse plate (105), the upper plate (106) and the lower plate (107) are respectively slidably mounted in the corresponding transverse grooves, a telescopic rod (108) is fixedly mounted on the rear side of the material discharging barrel (102), an extension plate (109) is fixedly mounted on the left side of the transverse plate (105), and an output end of the telescopic rod (108) is fixedly connected to the extension plate (109).

3. The automatic assembly production line of a gas meter according to claim 2, characterized in that: The rear side of the discharge barrel (102) is fixedly connected to a feed barrel (114), and a linear mechanism 1 is arranged on the inner wall of the bottom of the feed barrel (114). The feed barrel (114) delivers parts into the discharge barrel (102) through the cooperation of the linear mechanism 1. The bottom of the discharge barrel (102) is fixedly connected to a discharge barrel (110), and a lifting frame (111) is vertically slidably installed on the outer side of the discharge barrel (110). A plurality of vertical plates (112) are fixedly installed on the bottom of the lifting frame (111), and a telescopic plate 1 (113) is fixedly installed on the bottom of the vertical plate (112). Linear mechanisms 2 are arranged on both sides of the discharge barrel, and the two linear mechanisms 2 control the lifting frame (111) to perform vertical movement.

4. The automatic assembly production line for gas meters according to claim 1, characterized in that: The tightening tool (115) comprises two frames, the bottoms of the two frames are fixedly connected to a hydraulic cylinder (119), the output end of the hydraulic cylinder (119) is fixedly connected to a square plate (116), a plurality of screw guns (117) are fixedly mounted on the square plate (116), the bottom of the square plate (116) is fixedly connected to a limiting sleeve (118), and a feeding system for use with the screw guns (117) is arranged on the tops of the two frames.

5. The automatic assembly production line for gas meters according to claim 1, characterized in that: The screw-in tool (120) comprises a linear mechanism three, a mounting plate (121) is fixedly mounted on a sliding member of the linear mechanism three, two screw-in cylinders (122) are arranged on the mounting plate (121), and the screw-in cylinders (122) are used to screw the valve into the bottom shell.

6. The automatic assembly production line for gas meters according to claim 1, characterized in that: The transfer mechanism comprises a servo rotating mechanism (123), an transfer disc (124) is fixedly mounted on the output end of the servo rotating mechanism (123), a plurality of transfer grooves (125) are provided on the top of the transfer disc (124), the transfer grooves (125) are adapted to the bottom shell, the plurality of transfer grooves (125) are arranged at equal intervals around the circumference, the discharge tool (101), the tightening tool (115) and the screw-in tool (120) are respectively located above the corresponding transfer grooves (125), and a limit ring (126) is fixedly mounted above the transfer disc (124).

7. The automatic assembly production line for gas meters according to claim 6, characterized in that: The conveying mechanism (2) comprises two side frame plates (201), a conveying belt (202) is arranged between the two side frame plates (201), a guide plate (203) is fixedly mounted on one side of the side frame plate (201), the guide plate (203) comprises an inclined section and a straight section, the two guide plates (203) are symmetrically arranged, and the two guide plates (203) cooperate with each other to limit the bottom shell and ensure that the bottom shell can enter the transfer groove (125).

8. The automatic assembly production line for gas meters according to claim 1, characterized in that: The circulation mechanism (3) comprises two long guide rails (301), two reciprocating mechanisms and a plurality of motion mechanisms, the two reciprocating mechanisms being respectively located on both sides of the long guide rail (301), the reciprocating mechanism comprising a linear mechanism four (302), a short guide rail (303) being fixedly mounted on the top of a sliding member of the linear mechanism four (302), a fixed plate (305) and two track plates (304) being arranged on both the long guide rail (301) and the short guide rail (303), the motion mechanism comprising a motion plate (306), two track sleeves being fixedly mounted on the bottom of the motion plate (306), a permanent magnet being arranged on the motion plate (306), and a stator coil being arranged in the fixed plate (305).

9. The automatic assembly production line for gas meters according to claim 8, characterized in that: A rotating shaft (307) is fixedly mounted on the top of the moving plate (306), a storage frame (308) is fixedly mounted on the top of the rotating shaft (307), a gear ring (309) and a positioning plate (314) are fixedly mounted on the outer side of the rotating shaft (307), two racks (313) are fixedly mounted on the side wall of the long guide rail (301), the racks (313) cooperate with the gear ring (309), a metal plate is fixedly mounted on the bottom of the positioning plate (314), an arc groove (310) is opened on the top of the moving plate (306), magnet plates are arranged at both ends of the arc groove (310), a linear mechanism five (311) is fixedly mounted on both the front and rear sides of the top of the storage frame (308), a telescopic plate two (312) is arranged on the top of the linear mechanism five (311), and the two telescopic plates two (312) are arranged symmetrically.

10. The automatic assembly production line of a gas meter according to claim 1, characterized in that: The gluing mechanism (4) comprises a U-shaped frame (401), an electric push rod (402) is fixedly mounted on the U-shaped frame (401), a gluing cylinder (403) is fixedly mounted at the bottom end of the electric push rod (402), a plurality of gluing heads (404) are arranged at the bottom of the gluing cylinder (403), flat plates are fixedly mounted on the left and right sides of the gluing cylinder (403), flat grooves (405) are fixedly mounted on the inner walls of the front and rear sides of the U-shaped frame (401), and the flat plates are slidably mounted in the corresponding flat grooves (405).

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