An automated assembly device for threaded connection sensors

Abstract

This utility model relates to an automatic assembly equipment for threaded connection sensors, including a workbench, a production line, an automatic feeding mechanism, a destacking mechanism, a loading mechanism, a vision inspection mechanism, a pre-tightening mechanism, a re-tightening mechanism, and a secondary positioning device. The production line runs through one end of the workbench, the automatic feeding mechanism is located at the other end, the destacking mechanism is located above the automatic feeding mechanism, the loading mechanism is located between the production line and the automatic feeding mechanism, the vision inspection mechanism is located on one side of the loading mechanism, the pre-tightening mechanism and the re-tightening mechanism are respectively located on the left and right sides of the workbench, and the production line runs through the pre-tightening mechanism and the re-tightening mechanism. The secondary positioning device is located on the workbench on one side of the pre-tightening mechanism. Through the cooperation of these mechanisms, automatic docking with a smart factory can be achieved, eliminating the need for manual intervention in loading and unloading of threaded connection sensors, while achieving fully automated assembly, thereby improving the assembly efficiency of threaded connection sensors.

Description

Technical Field

[0001] This utility model relates to an automatic assembly device for a threaded connection sensor. Background Technology

[0002] A sensor is a device that senses and measures changes in physical, chemical, or biological parameters and converts them into readable or processable signals. Small size: Modern sensors are becoming increasingly miniaturized, making them easier to install and use. Light weight: The weight of sensors is also gradually decreasing, giving them an advantage in some applications. High accuracy: With continuous technological advancements, the accuracy of sensors is increasing, enabling them to more accurately reflect environmental changes. High reliability: Modern sensors have high reliability and can operate stably in harsh environments. Intelligent: Some modern sensors have intelligent functions, enabling automatic calibration, automatic compensation, and other functions. Sensors play an important role in various applications, such as medical, environmental monitoring, and industrial automation. There are various methods for installing and connecting sensors, with threaded connections being the most common. However, the installation of threaded connection sensors is mostly done manually. During assembly, workers often need to move the threaded connection sensor to the side of the production line, where production line workers manually install and tighten it at the corresponding workstation. This results in low automation, slow manual loading efficiency, and difficulty in meeting the demands of high-efficiency production. Utility Model Content

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0004] The technical problem this invention aims to solve is how to improve the assembly efficiency of threaded connection sensors.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an automatic assembly equipment for threaded connection sensors, including a workbench, a production line, an automatic feeding mechanism, a destacking mechanism, a line-mounting mechanism, a vision inspection mechanism, a pre-tightening mechanism, a re-tightening mechanism, and a secondary positioning device. The production line is arranged through one end of the workbench, the automatic feeding mechanism is arranged at the other end of the workbench, the destacking mechanism is arranged above the automatic feeding mechanism, the line-mounting mechanism is arranged between the production line and the automatic feeding mechanism, the vision inspection mechanism is arranged on one side of the line-mounting mechanism, the pre-tightening mechanism and the re-tightening mechanism are respectively arranged on the left and right sides of the workbench, the production line passes through the pre-tightening mechanism and the re-tightening mechanism, and the secondary positioning device is arranged on the workbench on one side of the pre-tightening mechanism.

[0006] As a preferred embodiment of the automatic assembly equipment for the threaded connection sensor of this utility model, the automatic feeding mechanism includes a roller drive device, a blocking cylinder and a positioning cylinder. The roller drive device is located on the side of the workbench away from the production line, the blocking cylinder is located on the top of the roller drive device near the loading mechanism, and the positioning cylinder is symmetrically located on the left and right sides of the roller drive device.

[0007] As a preferred embodiment of the automatic assembly equipment for the threaded connection sensor of this utility model, the destacking mechanism includes a destacking truss, a cylinder gripper, and a suction cup. The bottom of the left and right ends of the destacking truss are respectively located on the left and right sides of the roller drive device. The cylinder gripper is located on the destacking truss, and the suction cup is located on the cylinder gripper.

[0008] As a preferred embodiment of the automatic assembly equipment for the threaded connection sensor of this utility model, the online mechanism includes an online robot, a sensor gripper, and a 3D vision guidance device. The online robot is set on the workbench, the sensor gripper is set on the online robot, and the 3D vision guidance device is set on the sensor gripper to identify the position of the threaded connection sensor so that the sensor gripper can accurately grasp the threaded connection sensor.

[0009] As a preferred embodiment of the automatic assembly equipment for the threaded connection sensor of this utility model, the pre-tightening mechanism includes a pre-tightening truss, a pre-tightening module, a first tightening gun, and a tightening gripper. The bottom ends of the pre-tightening truss are respectively set on the worktables on both sides of the production line. The pre-tightening module is set on the pre-tightening truss, the first tightening gun is set on the pre-tightening module, and the tightening gripper is set on the first tightening gun.

[0010] As a preferred embodiment of the automatic assembly equipment for the threaded connection sensor of this utility model, the re-tightening mechanism includes a re-tightening truss, a re-tightening module, a second tightening gun, and a tightening head. The bottom ends of the re-tightening truss are respectively set on the worktables on both sides of the production line. The re-tightening module is set on the re-tightening truss, the second tightening gun is set on the re-tightening module, and the tightening head is set on the second tightening gun.

[0011] As a preferred embodiment of the automatic assembly equipment for the threaded connection sensor of this utility model, a first piece calibration device is provided on the worktable in front of the roller drive device. The first piece calibration device includes NG and OK parts MASTER, which are used for self-verification of the first piece calibration of the equipment to ensure the quality of the installed threaded connection sensor.

[0012] As a preferred embodiment of the automatic assembly equipment for the threaded connection sensor described in this utility model, an oil spraying device is provided on the right side of the vision inspection mechanism for surface lubrication of the threaded connection end of the sensor, which not only ensures stable and smooth assembly but also avoids scratching the material.

[0013] Beneficial effects: Through the cooperation of the assembly line, automatic feeding mechanism, destacking mechanism, online mechanism, vision inspection mechanism, pre-tightening mechanism, re-tightening mechanism and secondary positioning device, automatic docking with smart factories can be completed. No manual intervention is required for the online loading of threaded connection sensors and the unloading of empty packages. At the same time, the assembly is fully automated, thereby improving the assembly efficiency of threaded connection sensors. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0015] Figure 1 This is a schematic diagram of the overall structure of an automated assembly equipment for threaded connection sensors.

[0016] Figure 2 This is a three-dimensional structural diagram of an automated assembly equipment for threaded connection sensors.

[0017] Figure 3 This is a schematic diagram of the automatic feeding mechanism of an automatic assembly equipment for threaded connection sensors.

[0018] Figure 4 This is a schematic diagram of the destacking mechanism of an automated assembly equipment for threaded connection sensors.

[0019] Figure 5 This is a schematic diagram of the assembly line mechanism for an automated assembly equipment for threaded connection sensors.

[0020] Figure 6 This is a schematic diagram showing the positional structure of the pre-tightening mechanism and the secondary positioning device in an automatic assembly equipment for threaded connection sensors.

[0021] Figure 7 This is a schematic diagram of the re-tightening mechanism of an automated assembly equipment for threaded sensor connections.

[0022] Figure 8 This is a schematic diagram of the visual inspection mechanism of an automated assembly equipment for threaded connection sensors.

[0023] Figure 9 This is a schematic diagram of the first-piece calibration device for an automated assembly equipment for threaded connection sensors.

[0024] Figure 10 This is a schematic diagram of the oil injection device in an automated assembly equipment for threaded sensor connections.

[0025] In the diagram: 1. Workbench; 2. Production line; 3. Automatic feeding mechanism; 31. Roller drive device; 32. Blocking cylinder; 33. Positioning cylinder; 4. Destacking mechanism; 41. Destacking truss; 42. Cylinder gripper; 43. Suction cup; 5. Line loading mechanism; 51. Line loading robot; 52. Sensor gripper; 53. 3D vision guidance device; 6. Vision inspection mechanism; 7. Pre-tightening mechanism; 71. Pre-tightening truss; 72. Pre-tightening module; 73. First tightening gun; 74. Tightening gripper; 8. Re-tightening mechanism; 81. Re-tightening truss; 82. Re-tightening module; 83. Second tightening gun; 84. Tightening head; 9. Secondary positioning device; 10. First piece calibration device; 11. Oil spraying device; 12. TRAY disc; 13. EU box. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0029] Example

[0030] Reference Figures 1-10 This embodiment provides an automatic assembly equipment for threaded connection sensors, including a workbench 1, a production line 2, an automatic feeding mechanism 3, a destacking mechanism 4, a loading mechanism 5, a vision inspection mechanism 6, a pre-tightening mechanism 7, a re-tightening mechanism 8, and a secondary positioning device 9. The production line 2 is installed through one end of the workbench 1, the automatic feeding mechanism 3 is installed at the other end of the workbench 1, the destacking mechanism 4 is installed above the automatic feeding mechanism 3, the loading mechanism 5 is installed between the production line 2 and the automatic feeding mechanism 3, the vision inspection mechanism 6 is installed on one side of the loading mechanism 5, the pre-tightening mechanism 7 and the re-tightening mechanism 8 are respectively installed on the left and right sides of the workbench 1, the production line 2 passes through the pre-tightening mechanism 7 and the re-tightening mechanism 8, and the secondary positioning device 9 is installed on the workbench 1 on one side of the pre-tightening mechanism 7.

[0031] The workbench 1 has a rectangular structure and serves as the installation base for the entire automated assembly equipment. A production line 2 is installed at the front end of the workbench 1, running through the entire workbench 1 to transport materials to the workstations on the workbench 1. An automatic feeding mechanism 3 is installed at the rear end of the workbench 1, enabling automatic feeding of threaded connection sensors. Above the automatic feeding mechanism 3 is a destacking mechanism 4, which places empty TRAY trays 12 into empty EU boxes 13. When the EU box 13 is full of empty TRAY trays 12, it is sent out by the automatic feeding mechanism 3 and received by a CTU trolley for return to storage. A loading mechanism 5 is installed on the workbench 1 between the production line 2 and the automatic feeding mechanism 3. The loading mechanism 5 can pick up the threaded connection sensors from the TRAY trays 12. A vision inspection mechanism 6 is installed to the right of the loading mechanism 5. The vision inspection mechanism 6 mainly consists of a vision system and is used to detect defects in the threaded connection sensors and whether a sealing ring is missing. The system can also recognize QR code information and bind the tray. A pre-tightening mechanism 7 and a re-tightening mechanism 8 are installed on the left and right sides of the workbench 1, respectively, and the production line 2 runs through both the pre-tightening mechanism 7 and the re-tightening mechanism 8. The pre-tightening mechanism 7 pre-tightens the threaded connection sensor, and then the re-tightening mechanism 8 re-tightens the threaded connection sensor to achieve automatic assembly. A secondary positioning device 9 is also installed on the workbench 1 to the right of the pre-tightening mechanism 7 to support the threaded connection sensor picked up by the loading mechanism 5, enabling the transfer and secondary positioning of the threaded connection sensor, thus allowing the pre-tightening mechanism 7 to accurately pick up the threaded connection sensor. In this embodiment, through the cooperation of the production line 2, automatic feeding mechanism 3, destacking mechanism 4, loading mechanism 5, vision inspection mechanism 6, pre-tightening mechanism 7, re-tightening mechanism 8, and secondary positioning device 9, automatic docking with a smart factory can be completed. No manual intervention is required for loading the threaded connection sensor and unloading the empty package, and the assembly is fully automated, thereby improving the assembly efficiency of the threaded connection sensor.

[0032] Specifically, the automatic feeding mechanism 3 includes a roller drive device 31, a blocking cylinder 32, and a positioning cylinder 33. The roller drive device 31 is located on the side of the workbench 1 away from the production line 2. The blocking cylinder 32 is located on the top of the roller drive device 31 near the loading mechanism 5. The positioning cylinder 33 is symmetrically arranged on the left and right sides of the roller drive device 31.

[0033] The automatic feeding mechanism 3 in this embodiment mainly consists of a roller drive device 31, a blocking cylinder 32, and a positioning cylinder 33. The roller drive device 31 is fixedly installed at the rear end of the workbench 1. It serves as the power component of the automatic feeding mechanism 3 to provide power to drive the material conveying. A blocking cylinder 32 is installed on the top of the roller drive device 31 near the loading mechanism 5 (the front end of the top of the roller drive device 31) to block and stop the material in the roller conveying direction. Positioning cylinders 33 are symmetrically installed on the left and right sides of the top of the roller drive device 31 to perform coarse positioning of the material perpendicular to the roller conveying direction, so that the vision inspection mechanism 6 and the destacking mechanism 4 are within their working range.

[0034] Specifically, the destacking mechanism 4 includes a destacking truss 41, a cylinder gripper 42, and a suction cup 43. The bottom of the left and right ends of the destacking truss 41 are respectively located on the left and right sides of the roller drive device 31. The cylinder gripper 42 is located on the destacking truss 41, and the suction cup 43 is located on the cylinder gripper 42.

[0035] The destacking mechanism 4 in this embodiment mainly consists of a destacking truss 41, a cylinder gripper 42, and a suction cup 43. The destacking truss 41 has an overall "door" shape and serves as the installation base for the destacking mechanism 4. The bottom of the left and right ends of the destacking truss 41 is fixedly installed on the left and right sides of the roller drive device 31. A movable cylinder gripper 42 is installed on the top of the destacking truss 41. The cylinder gripper 42 can grab empty EU boxes 13. A suction cup 43 is installed at the bottom of the cylinder gripper 42. The suction cup 43 can pick up empty TRAY trays 12, thereby achieving the effect of empty package unloading.

[0036] Specifically, the online mechanism 5 includes an online robot 51, a sensor gripper 52, and a 3D vision guidance device 53. The online robot 51 is set on the workbench 1, the sensor gripper 52 is set on the online robot 51, and the 3D vision guidance device 53 is set on the sensor gripper 52.

[0037] The loading mechanism 5 in this embodiment mainly consists of a loading robot 51, a sensor gripper 52, and a 3D vision guidance device 53. The loading robot 51 is fixedly installed on the workbench 1 between the roller drive device 31 and the production line 2. A sensor gripper 52 is installed at the end of the loading robot 51 to grip the threaded connection sensor from the TRAY tray 12. A 3D vision guidance device 53 is also installed on the sensor gripper 52 to identify the position of the threaded connection sensor so that the sensor gripper 52 can accurately grip the threaded connection sensor. In other embodiments, a 2D vision guidance mechanism can also be used to achieve the same technical effect.

[0038] Specifically, the pre-tightening mechanism 7 includes a pre-tightening truss 71, a pre-tightening module 72, a first tightening gun 73, and a tightening gripper 74. The bottom ends of the pre-tightening truss 71 are respectively set on the worktables 1 on both sides of the production line 2. The pre-tightening module 72 is set on the pre-tightening truss 71, the first tightening gun 73 is set on the pre-tightening module 72, and the tightening gripper 74 is set on the first tightening gun 73.

[0039] The pre-tightening mechanism 7 in this embodiment mainly consists of a pre-tightening truss 71, a pre-tightening module 72, a first tightening gun 73, and a tightening gripper 74. The pre-tightening truss 71 has an overall "door" shape and serves as the installation base for the pre-tightening mechanism 7, allowing for multi-directional movement. The bottom ends of the pre-tightening truss 71 are fixedly installed on the workbenches 1 on the left and right sides of the production line 2, respectively. The pre-tightening module 72 is installed on the top of the pre-tightening truss 71, and the first tightening gun 73 is installed on the pre-tightening module 72. The tightening gripper 74 is installed at the output end of the first tightening gun 73. When the pre-tightening truss 71 drives the pre-tightening module 72 to move to the designated position, the tightening gripper 74 at the output end of the first tightening gun 73 can grab the threaded connection sensor on the secondary positioning device 9 that has completed secondary positioning. Then, the pre-tightening module 72 moves to the top of the product, and the first tightening gun 73 accurately installs the threaded connection sensor into the corresponding position on the product.

[0040] Specifically, the re-tightening mechanism 8 includes a re-tightening truss 81, a re-tightening module 82, a second tightening gun 83, and a tightening head 84. The bottom ends of the re-tightening truss 81 are respectively set on the worktables 1 on both sides of the production line 2. The re-tightening module 82 is set on the re-tightening truss 81, the second tightening gun 83 is set on the re-tightening module 82, and the tightening head 84 is set on the second tightening gun 83.

[0041] The re-tightening mechanism 8 in this embodiment mainly consists of a re-tightening truss 81, a re-tightening module 82, a second tightening gun 83, and a tightening head 84. The re-tightening truss 81 has an overall "gate" shape structure and serves as the installation base for the pre-tightening mechanism 7, allowing for multi-directional movement. The bottom ends of the re-tightening truss 81 are fixedly installed on the workbenches 1 on the left and right sides of the production line 2, respectively. The re-tightening module 82 is installed on the top of the re-tightening truss 81, and the second tightening gun 83 is installed on the re-tightening module 82. The tightening head 84 is installed at the output end of the second tightening gun 83. The tightening head 84 is fitted onto the threaded connection sensor through the re-tightening module 82, and the second tightening gun 83 drives the tightening head 84 to rotate, thereby achieving secondary tightening of the threaded connection sensor and ensuring reliable installation of the threaded connection sensor.

[0042] Furthermore, a first piece calibration device 10 is provided on the worktable 1 on the front side of the roller drive device 31.

[0043] In this embodiment, a first-piece calibration device 10 is installed on the workbench 1 in front of the roller drive device 31. The first-piece calibration device 10 includes NG and OK parts MASTER, which are used for self-calibration of the first threaded connection sensor of the equipment to ensure the quality of the installed threaded connection sensor and avoid the generation of defective products.

[0044] Furthermore, an oil spraying device 11 is provided on the right side of the visual inspection mechanism 6.

[0045] In this embodiment, an oil spraying device 11 is installed on the right side of the vision inspection mechanism 6 for surface lubrication of the sensor threaded connection end, which not only ensures stable and smooth assembly, but also avoids scratching the material.

[0046] During production, production requirements are input based on actual needs, and the automatic mode is selected. The CTU trolley can transport EU boxes 13 to the automatic feeding mechanism 3. After receiving the EU boxes 13, the roller drive device 31 starts to actively transport the EU boxes 13. During this process, the blocking cylinder 32 stops the EU boxes 13 and then retracts. The roller drive device 31 transports the EU boxes 13 to the gripping position. After the EU boxes 13 are in place, a signal is sent. The safety switch detects that the signal is normal (the normally closed switch is not triggered). The blocking cylinder 32 blocks the next box of material, and the positioning cylinder 33 extends to position the EU boxes 13 at the gripping position. Then... The robot 51 moves to the photo point above the EU box 13. After the 3D vision guidance device 53 addresses the threaded connection sensor, the sensor gripper 52 accurately grabs the threaded connection sensor. During this process, after the robot 51 grabs each layer of threaded connection sensors, the cylinder gripper 42 on the destacking mechanism 4 moves to the grabbing position, grabs the empty TRAY tray 12 and puts it into the empty EU box 13. When the empty EU box 13 is full, the roller drive device 31 then transports the empty EU box 13 out of the automatic feeding mechanism 3, and it is received by the CTU trolley and transported back to the warehouse.

[0047] After the sensor gripper 52 accurately grasps the threaded connection sensor, the online robot 51 moves the grasped threaded connection sensor to the detection position of the vision inspection mechanism 6 for photographic inspection. If the inspection is successful, the online robot 51 moves the threaded connection sensor to the oil spraying device 11 and sprays oil onto the threaded connection end of the sensor. After oil spraying, the online robot 51 places the threaded connection sensor on the transfer platform of the secondary positioning device 9 for secondary positioning of the sensor. The online robot 51 then cycles to the next grasp of the threaded connection sensor; the pre-tightening module 72 on the pre-tightening truss 71 moves to the mechanism... After reaching the designated position on the transfer platform, the tightening gripper 74 grabs the threaded connection sensor. After grabbing, the pre-tightening module 72 is moved above the product via the pre-tightening truss 71. The tightening module and the first tightening gun 73 cooperate to pre-tighten the threaded connection sensor. After pre-tightening is completed, the next cycle continues. At the same time, the lifting and positioning are lowered, and the tray on the production line 2 flows to the re-tightening station. The re-tightening module 82 is moved above the product via the re-tightening truss 81. The re-tightening module 82 and the second tightening gun 83 cooperate to re-tighten the threaded connection sensor to complete the automatic feeding and assembly of the threaded connection sensor. The product with the sensor assembly completed flows to the next work station with the tray.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An automatic assembly apparatus of a threaded connection sensor, characterized in that: The utility model provides a kind of automatic screwing machine, including workbench (1), flow line (2), automatic feeding mechanism (3), unstacking mechanism (4), online mechanism (5), visual inspection mechanism (6), pre-twist mechanism (7), re-twist mechanism (8) and secondary positioning device (9), the flow line (2) is arranged at one end of workbench (1), automatic feeding mechanism (3) is arranged at the other end of workbench (1), unstacking mechanism (4) is arranged above automatic feeding mechanism (3), online mechanism (5) is arranged between flow line (2) and automatic feeding mechanism (3), visual inspection mechanism (6) is arranged at the side of online mechanism (5), pre-twist mechanism (7) and re-twist mechanism (8) are respectively arranged at the left and right sides of workbench (1), flow line (2) penetrates pre-twist mechanism (7) and re-twist mechanism (8), secondary positioning device (9) is arranged on the workbench (1) of pre-twist mechanism (7) side.

2. An automatic assembly apparatus of a threaded connection sensor as claimed in claim 1, characterized in that: The automatic feeding mechanism (3) includes a roller drive device (31), a blocking cylinder (32), and a positioning cylinder (33). The roller drive device (31) is arranged on the side of the workbench (1) away from the flow line (2). The blocking cylinder (32) is arranged on the top of the roller drive device (31) near the online mechanism (5). The positioning cylinder (33) is symmetrically arranged on the left and right sides of the roller drive device (31).

3. The automatic assembly apparatus of threaded connections sensors according to claim 2, characterized in that: The unstacking mechanism (4) includes an unstacking truss (41), a cylinder clamp jaw (42), and a suction cup (43). The left and right ends of the unstacking truss (41) are arranged on the left and right sides of the roller drive device (31), respectively. The cylinder clamp jaw (42) is arranged on the unstacking truss (41). The suction cup (43) is arranged on the cylinder clamp jaw (42).

4. The apparatus of claim 3, wherein: The online mechanism (5) includes an online robot (51), a sensor gripper (52), and a 3D vision guiding device (53). The online robot (51) is arranged on the workbench (1). The sensor gripper (52) is arranged on the online robot (51). The 3D vision guiding device (53) is arranged on the sensor gripper (52).

5. An automatic assembly apparatus of a threaded connection sensor as claimed in claim 4, characterized in that: The pre-twist mechanism (7) includes a pre-twist truss (71), a pre-twist module (72), a first tightening gun (73), and a tightening gripper (74). The two ends of the pre-twist truss (71) are arranged on the workbench (1) on both sides of the flow line (2). The pre-twist module (72) is arranged on the pre-twist truss (71). The first tightening gun (73) is arranged on the pre-twist module (72). The tightening gripper (74) is arranged on the first tightening gun (73).

6. An automatic assembly apparatus of a threaded connection sensor as claimed in claim 5, characterized in that: The re-twist mechanism (8) includes a re-twist truss (81), a re-twist module (82), a second tightening gun (83), and a tightening head (84). The two ends of the re-twist truss (81) are arranged on the workbench (1) on both sides of the flow line (2), respectively. The re-twist module (82) is arranged on the re-twist truss (81). The second tightening gun (83) is arranged on the re-twist module (82). The tightening head (84) is arranged on the second tightening gun (83).

7. The apparatus of claim 2, wherein: A first piece calibration device (10) is arranged on the workbench (1) in front of the roller drive device (31).

8. The automatic assembly apparatus of threaded connections sensor according to claim 1, characterized in that: The right side of the visual detection mechanism (6) is provided with an oil injection device (11).

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