Automatic bolt assembling device

Abstract

The utility model discloses an automatic bolt assembling device, which belongs to the technical field of mechanical assembly and comprises a mounting platform, a working platform, a workpiece fastening device, a feeding device, a bolt length self-adaptive device, a power source, a detecting and tracing device and a loading and unloading device. According to the device, automatic installation of the bolt can be achieved, the torque and the installation height of the bolt can be detected and monitored in time, the installation quality of the bolt is ensured, and the technical problems that in the prior art, the bolt installation torque is different, whether installation is in place or not, wrong installation exists, and neglected installation exists are solved.

Description

Technical Field

[0001] This utility model relates to the field of mechanical assembly technology, and in particular to an automatic bolt assembly device. Background Technology

[0002] In the field of mechanical assembly, bolts play a crucial role in fixing and installing parts. Tightening bolts is typically done manually or with automated tools, but this process is often time-consuming, labor-intensive, and wasteful of labor costs. Furthermore, human intervention can lead to inconsistent bolt protrusion heights and torque during tightening, resulting in poor assembly quality. Only one bolt can be tightened at a time, leading to low production efficiency. Tightening data for each product cannot be stored or monitored, making traceability impossible and increasing the risk of missed bolts. Other automated thread-tightening equipment requires adjusting thread pitch parameters and tightening speed when tightening bolts with different pitches, making operation cumbersome. Utility Model Content

[0003] This utility model adopts the following technical solution: an automatic bolt assembly device, including an installation platform, which is set on the upper part of a work platform; a workpiece fastening device is set on the upper surface of the work platform; a feeding device is set on the installation platform; a power source is set at the output end of the feeding device; a bolt length adaptive device is set at the output end of the power source; a detection and traceability device is set on the installation platform; and a loading and unloading device is set on one side of the work platform.

[0004] The installation platform includes a platform plate, several support columns supporting the platform plate, and a feed device support frame; one end of each support column is detachably fastened to the top of the work platform plate, and the other end is detachably connected to the bottom of the platform plate to support the platform plate; the feed device support frame includes several support plates and a positioning plate for fixing the feed device, the support plates are detachably fastened to the upper surface of the platform plate; the positioning plate for fixing the feed device is detachably fastened to the front surface of the support plate.

[0005] The working platform includes a worktable and a frame supporting the worktable, with the worktable mounted on the frame; the frame is composed of several profiles, and a controller for controlling the feeding device and power source is installed inside the frame.

[0006] The workpiece fastening device is installed on the work platform, including a workpiece positioning device and a workpiece clamping device. The workpiece positioning device includes a positioning base plate, several positioning pads, and several positioning pins, preferably one positioning pad and one positioning pin. The positioning base plate is provided with positioning pin holes, and the positioning pins pass through the positioning pads and are installed on the positioning base plate. The positioning pads are fixed on the positioning base plate to support the workpiece. The workpiece clamping device includes several cylinders and several clamping plates, connectors, clamping plate support columns, connecting plates, and pins. The cylinders are detachably fixed to one side of the positioning base plate, and one end of the clamping plate is connected to the cylinder rod of the cylinder through the connectors and pins. The clamping plate support columns are detachably fixed to the worktable and are connected to the clamping plates through the connecting plates and pins.

[0007] The feeding device includes a horizontal feeding device and a vertical feeding device; the horizontal feeding device includes a first rodless cylinder and a slide table, the first rodless cylinder being detachably fastened to the positioning plate of the fixed feeding device; the slide table is detachably fixed to the slide base of the first rodless cylinder and moves with the action of the slide base, and the slide table is provided with a T-slot for fastening the vertical feeding device; there are several vertical feeding devices (the number is set according to the number of bolts to be installed on the product), the vertical feeding device includes several second rodless cylinders and several base plates for fixing power sources; the several second rodless cylinders are adjustablely fastened in the T-slots of the slide table, and their positions can be adjusted according to the bolt installation positions of different products; the base plate is detachably mounted on the slide plate of the second rodless cylinder and moves with the slide plate.

[0008] The bolt length adaptive device includes an elastic component, an output shaft, a bolt clamping component, and a guide device. The elastic component includes an elastic element, which is a compression spring, a telescopic shaft, and a limiting pin. One end of the output shaft is provided with a connection position for fastening to the power source shaft. The lower middle part is provided with a stepped hole for mounting the elastic element and a U-shaped groove for sliding the limiting pin. One end of the telescopic shaft, which extends into the output shaft, has a pin hole for mounting the limiting pin. The limiting pin passes through the U-shaped groove on the output shaft and is fastened in the pin hole to limit the vertical movement and radial rotation of the telescopic shaft. The other end is provided with a connection position for fastening to the bolt clamping component. One end of the bolt clamping component is provided with a connection position for fastening to the telescopic shaft, and the other end is provided with a bolt clamping position for clamping the bolt to be tightened. The guiding device includes a guide sleeve and a guide body. The guide sleeve is fastened to the guide body. Preferably, the guide sleeve is a bearing. One end of the guide body is provided with a connection position for fastening to the power source and is detachably fastened to the power source.

[0009] The power source is preferably an electric screwdriver, which is equipped with a torque sensor and is electrically connected to the detection and traceability device; the output end of the electric screwdriver is fastened to the output shaft of the bolt length adaptive device.

[0010] The detection and traceability device includes a laser rangefinder, a sensor support frame, a marking machine, a data processor and data processing software, and an alarm. The laser rangefinder is detachably and securely fastened to the sensor support frame, which is detachably and securely fastened to the mounting platform. The marking machine is detachably and securely fastened to the positioning base plate of the workpiece's fastening device. The data processor and alarm are located on the upper part of the frame of the supporting work platform for easy visual inspection. The data processing software is embedded within the data processor.

[0011] The loading and unloading device includes a robotic arm, a vision system, bolt positions to be installed, and workpiece positions to be installed. In use, the robotic arm picks up the workpiece and places it in the workpiece position to be installed, and then fastens it using the workpiece fastening device. The robotic arm picks up the bolt and places it in the bolt position to be installed on the workpiece, thus achieving the purpose of loading.

[0012] Implementation method:

[0013] S1. Place the bolts to be installed and the products to be installed in their respective material positions;

[0014] S2. Start the automatic bolt installation device. Under the control of the system, the robot arm moves to the workpiece to be installed, detects and determines its status, adjusts and grabs the workpiece to be installed in a timely manner and places it in the device, and fastens the workpiece through the workpiece fastening device.

[0015] S3. Under system control, the robot arm sequentially moves to the bolt positions to be installed, detects and determines their status, adjusts and grabs the bolts to be installed to the workpiece position, detects the position of the bolts and completes the pre-installation.

[0016] S4. Under system control, the horizontal feed device drives the vertical feed device to move so that it reaches the bolt to be tightened.

[0017] S5. Under system control, the vertical feed device is started, which drives the bolt length adaptive device to the position of the bolt to be tightened. The bolt length adaptive device tightens the bolt through the bolt clamping component.

[0018] S6. Under system control, the electric screwdriver starts to tighten the corresponding bolts. After the torque sensor detects that the torque meets the standard, the bolt length adaptive device loosens the bolts and returns to the original position. At the same time, the system performs timely detection on the installed bolts to determine whether the bolt installation is qualified or missing, and marks, records and issues warnings on the qualified and unqualified products.

[0019] S7. Under system control, the workpiece fastening device loosens the workpiece, and at the same time, the robot arm moves to the position of the installed workpiece and grabs it. The system classifies the product into different qualified and unqualified areas according to the test results.

[0020] S8, repeating 2-7 actions, can perform continuous production. The system can automatically cycle with one-button start. When the system detects that there are no bolts or workpieces to be installed on the material position, the system will issue an alarm to indicate that there is a shortage of material.

[0021] The beneficial effects of this case:

[0022] 1. This device can automatically install bolts and detect and monitor the bolt torque and installation height in real time to ensure the installation quality of bolts. It solves the technical problems of inconsistent bolt installation torque, whether the installation is in place, and incorrect or missing bolts in the current technology.

[0023] 2. This device enables timely marking, detection, and recording of products after installation, solving the technical problem of difficult traceability of assembled products in current technology;

[0024] 3. The “bolt length adaptive device 5” in this device overcomes the technical difficulty of adjusting the device during the installation of bolts of different lengths, and realizes seamless switching between the installation of long and short bolts without the need to readjust and calibrate the device.

[0025] 4. The invention of this device meets the needs of current intelligent production lines and provides strong technical support for automated and intelligent production. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0027] Figure 2 This is a three-dimensional structural diagram of the installation platform in this utility model;

[0028] Figure 3 This is a front view structural diagram of the installation platform in this utility model;

[0029] Figure 4 This is a three-dimensional structural schematic diagram of the fastening device for the workpiece in this utility model;

[0030] Figure 5 This is a three-dimensional structural diagram of the vertical feed device and the horizontal feed device in this utility model;

[0031] Figure 6 This is a three-dimensional structural diagram of the electric screwdriver in this utility model;

[0032] Figure 7 In this utility model Figure 6 Enlarged schematic diagram of the structure at point A in the diagram;

[0033] Figure 8 This is a three-dimensional structural diagram of the first rodless cylinder and the second rodless cylinder in this utility model.

[0034] In the diagram, 1. Installation platform; 2. Working platform; 3. Workpiece fastening device; 4. Feeding device; 5. Bolt length adaptive device; 6. Power source; 7. Inspection and traceability device; 113. Platform plate; 114. Support column; 8. Support plate; 9. Positioning plate; 10. Worktable; 11. Frame; 12. Positioning base plate; 13. Positioning pad; 14. Positioning pin; 15. Positioning pin hole; 16. Cylinder; 17. Clamping plate; 18. Connector; 19. Clamping plate support column; 20. Linking plate; 21. Pin; 22. First rodless cylinder; 23. Slide table; 24. Slide seat; 25. Second rodless cylinder; 26. Base plate; 27. Slide plate; 28. Elastic element; 29. ​​Telescopic shaft; 30. Limiting pin; 31. Output shaft; 32. U-shaped groove. 33. Bolt clamping parts; 34. Bearings; 35. Guide bodies; 36. Electric screwdrivers; 37. Laser rangefinders; 38. Sensor support frames; 39. Marking machines; 40. Alarms. Detailed Implementation

[0035] Please see Figure 1-8 The present invention will now be described in detail with reference to the accompanying drawings and embodiments:

[0036] The automatic bolt assembly device of this utility model includes an installation platform 1, a working platform 2, a workpiece fastening device 3, a feeding device 4, a bolt length adaptive device 5, a power source 6, a detection and traceability device 7, and a loading and unloading device.

[0037] The installation platform 1 is located on the upper part of the working platform 2 and includes a platform plate 113, a plurality of support columns 114 supporting the platform plate 113, and a feeding device support frame. One end of each support column 114 is detachably fastened to the top of the working platform 2, and the other end is detachably connected to the bottom of the platform plate 113 to support the platform plate 113. The feeding device support frame includes a plurality of support plates 8 and a positioning plate 9 for fixing the feeding device 4. The support plates 8 are detachably fastened to the upper surface of the platform plate 113. The positioning plate 9 for fixing the feeding device 4 is detachably fastened to the front surface of the support plates 8.

[0038] The working platform 2 includes a workbench 10 and a frame 11 supporting the workbench 10. The workbench 10 is mounted on the frame 11. The frame 11 is composed of several profiles and a controller for controlling the feed device 4 and the power source 6 is installed inside the frame 11.

[0039] The workpiece fastening device 3 is installed on the work platform 2, including a workpiece positioning device and a workpiece clamping device. The workpiece positioning device includes a positioning base plate 12, a plurality of positioning pads 13, and a plurality of positioning pins 14, preferably two positioning pads 13 and two positioning pins 14. The positioning base plate 12 is provided with positioning pin holes 15, and the positioning pins 14 pass through the positioning pads 13 and are installed on the positioning base plate 12. The positioning pads 13 are fixed on the positioning base plate 12 to support the workpiece. The workpiece clamping device includes a plurality of cylinders 16 and a plurality of clamping plates 17, a connector 18, a clamping plate support column 19, a connecting plate 20, and a pin 21. The cylinders 16 are detachably fixed to one side of the positioning base plate 12, and one end of the clamping plate 17 is connected to the cylinder rod of the cylinder 16 through the connector 18 and the pin 21. The clamping plate support column 19 is detachably fixed to the worktable 10 and is connected to the clamping plate 17 through the connecting plate 20 and the pin 21.

[0040] The feeding device 4 includes a horizontal feeding device and a vertical feeding device. The horizontal feeding device includes a first rodless cylinder 22 and a slide 23. The first rodless cylinder 22 is detachably fastened to the positioning plate 9 of the fixed feeding device 4. The slide 23 is detachably fixed to the slide seat 24 of the first rodless cylinder 22 and moves with the action of the slide seat 24. The slide 23 is provided with a T-slot for fastening the vertical feeding device. There are several vertical feeding devices (the number is set according to the number of bolts to be installed on the product). The vertical feeding device includes several second rodless cylinders 25 and several base plates 26 for fixing the power source 6. The several second rodless cylinders 25 are adjustablely fastened in the T-slots of the slide 23 and their positions can be adjusted according to the bolt installation positions of different products. The base plate 26 is detachably mounted on the slide plate 27 of the second rodless cylinder 25 and moves with the slide plate 27.

[0041] The bolt length adaptive device 5 includes an elastic component, an output shaft 31, a bolt holding component 33, and a guide device. The elastic component includes an elastic element 28 (compression spring), a telescopic shaft 29, and a limiting pin 30. One end of the output shaft 31 has a connection position for fastening to the power shaft of the power source 6. The lower middle part has a stepped hole for mounting the elastic element 28 and a U-shaped groove 32 for sliding the limiting pin 30. One radial portion of the telescopic shaft 29, extending into the output shaft 31, has a pin hole for mounting the limiting pin 30. The limiting pin 30 passes through the U-shaped groove 32 on the output shaft 31 and is fastened within the pin hole, thus limiting the telescopic shaft 28. The device has a vertically movable position and a radially rotating position. One end of the device is provided with a connection position for fastening to the bolt clamping member 33. One end of the bolt clamping member 33 is provided with a connection position for fastening to the telescopic shaft 29, and the other end is provided with a bolt clamping position for clamping the bolt to be tightened. The guiding device includes a guide sleeve and a guide body 35. The guide sleeve is fastened within the guide body 35. Preferably, the guide sleeve is a bearing 34. One end of the guide body 35 is provided with a connection position for fastening to the power source 6 body, and is detachably fastened to the power source 6 body.

[0042] The power source 6 is preferably an electric screwdriver 36, which is equipped with a torque sensor and is electrically connected to the detection and traceability device 7; the output end of the electric screwdriver 36 is fastened to the output shaft 31 of the bolt length adaptive device 5.

[0043] The detection and traceability device 7 includes a laser rangefinder 37, a sensor support frame 38, a marking machine 39, a data processor and data processing software, and an alarm 40. The laser rangefinder 37 is detachably and securely fastened to the sensor support frame 38, which is detachably and securely fastened to the mounting platform 1. The marking machine 39 is detachably and securely fastened to the positioning base plate 12 of the workpiece fastening device 3. The data processor and alarm 40 are located on the upper part of the frame 11 of the supporting work platform 2 for easy visual inspection. The data processing software is embedded within the data processor.

[0044] The loading and unloading device includes a robotic arm, a vision system, bolt positions to be installed, and workpiece positions to be installed. In use, the robotic arm grabs the workpiece and places it at the fastening device 3 of the workpiece for fastening, and the robotic arm grabs the bolt and places it at the bolt positions to be installed on the workpiece, thus achieving the purpose of loading.

[0045] Implementation method:

[0046] S1. Place the bolts to be installed and the products to be installed in their respective material positions;

[0047] S2. Start the automatic bolt installation device. Under the control of the system, the robot arm moves to the workpiece to be installed, detects and determines its status, adjusts and grabs the workpiece to be installed in time and places it in the device, and fastens the workpiece by the workpiece fastening device 3.

[0048] S3. Under system control, the robot arm sequentially moves to the bolt positions to be installed, detects and determines their status, adjusts and grabs the bolts to be installed to the workpiece position, detects the position of the bolts and completes the pre-installation.

[0049] S4. Under system control, the horizontal feed device drives the vertical feed device to move so that it reaches the bolt to be tightened.

[0050] S5. Under system control, the vertical feed device is started, which drives the bolt length adaptive device 5 to the position of the bolt to be tightened. The bolt length adaptive device 5 tightens the bolt through the bolt clamping member 33.

[0051] S6. Under system control, the electric screwdriver 36 starts to tighten the corresponding bolts. After the torque sensor detects that the torque meets the standard, the bolt length adaptive device 5 loosens the bolts and exits to return to the original position. At the same time, the system performs timely detection on the installed bolts to determine whether the bolt installation is qualified or missing, and marks, records and warns whether the installed products are qualified or not.

[0052] S7. Under system control, the workpiece fastening device 3 loosens the workpiece, and at the same time, the robot arm moves to the position of the installed workpiece and grabs it. The system classifies the product into different qualified and unqualified areas according to the test results.

[0053] S8, repeating 2-7 actions, can perform continuous production. The system can automatically cycle with one-button start. When the system detects that there are no bolts or workpieces to be installed on the material position, the system will issue an alarm to indicate that there is a shortage of material.

[0054] The beneficial effects of this case:

[0055] 1. This device can automatically install bolts and detect and monitor the bolt torque and installation height in real time to ensure the installation quality of bolts. It solves the technical problems of inconsistent bolt installation torque, whether the installation is in place, and incorrect or missing bolts in the current technology.

[0056] 2. This device enables timely marking, detection, and recording of products after installation, solving the technical problem of difficult traceability of assembled products in current technology;

[0057] 3. The “bolt length adaptive device 5” in this device overcomes the technical difficulty of adjusting the device during the installation of bolts of different lengths, and realizes seamless switching between long and short bolt installation without the need to readjust and calibrate the device.

[0058] 4. The invention of this device meets the needs of current intelligent production lines and provides strong technical support for automated and intelligent production.

Claims

1. An automatic bolt assembly device, characterized in that: The system includes an installation platform (1), which is located on the upper part of the work platform (2). The fastening device (3) for the workpiece is located on the upper surface of the work platform (2). The feeding device (4) is located on the installation platform (1). The output end of the feeding device (4) is equipped with a power source (6). The output end of the power source (6) is equipped with a bolt length adaptive device (5). The detection and traceability device (7) is located on the installation platform (1). The loading and unloading device is located on one side of the work platform (2).

2. The automatic bolt assembly device according to claim 1, characterized in that: The installation platform (1) includes a platform plate (113), a plurality of support columns (114) supporting the platform plate (113), and a feed device support frame; one end of the support column (114) is detachably fastened to the top of the work platform (2) plate, and the other end is detachably connected to the bottom of the platform plate (113) for supporting the platform plate (113); the feed device support frame includes a plurality of support plates (8) and a positioning plate (9) for fixing the feed device (4); the support plates (8) are detachably fastened to the upper surface of the platform plate (113); the positioning plate (9) for fixing the feed device (4) is detachably fastened to the front surface of the support plate (8).

3. The automatic bolt assembly device according to claim 2, characterized in that: The work platform (2) includes a workbench (10) and a frame (11) supporting the workbench (10). The workbench (10) is located inside the frame (11). The frame (11) is composed of several profiles. A controller for controlling the feed device (4) and the power source (6) is provided inside the frame (11).

4. The automatic bolt assembly device according to claim 3, characterized in that: The feeding device (4) includes a horizontal feeding device and a vertical feeding device; the horizontal feeding device includes a first rodless cylinder (22) and a slide (23), the first rodless cylinder (22) is detachably fastened to the positioning plate (9) of the fixed feeding device (4); the slide (23) is detachably fixed to the slide seat (24) of the first rodless cylinder (22), and moves with the action of the slide seat (24), and the slide (23) is provided with a T-slot for fastening the vertical feeding device; the vertical feeding device includes a plurality of second rodless cylinders (25) and a plurality of base plates (26) of fixed power sources (6); the plurality of second rodless cylinders (25) are adjustablely fastened in the T-slots of the slide (23); the base plate (26) is detachably mounted on the slide plate (27) of the second rodless cylinders (25).

5. The automatic bolt assembly device according to claim 4, characterized in that: The bolt length adaptive device (5) includes an elastic component, an output shaft (31), a bolt clamping component (33), and a guide device.

6. The automatic bolt assembly device according to claim 5, characterized in that: The elastic component includes an elastic element (28), a telescopic shaft (29), and a limiting pin (30). One end of the output shaft (31) is provided with a connection position for fastening to the power shaft of the power source (6). The lower middle part is provided with a stepped hole for mounting the elastic element (28) and a U-shaped groove (32) for sliding the limiting pin (30). One radial portion of the telescopic shaft (29) extending into the output shaft (31) is provided with a pin hole for mounting the limiting pin (30). The limiting pin (30) passes through the U-shaped groove (32) on the output shaft (31) and is fastened within the pin hole. The telescopic shaft (29) is restricted to move up and down and rotate radially. The other end is provided with a connection position for connecting with the bolt clamping member, which is used to fasten the bolt clamping member (33). The bolt clamping member (33) is provided with a connection position at one end for fastening the telescopic shaft (29), and a bolt clamping position at the other end for clamping the bolt to be tightened. The guiding device includes a guide sleeve and a guide body (35). The guide sleeve is fastened inside the guide body (35). One end of the guide body (35) is provided with a connection position for connecting with the power source (6), and is detachably fastened to the power source (6).

7. The automatic bolt assembly device according to claim 5, characterized in that: The power source (6) is preferably an electric screwdriver (36), which is equipped with a torque sensor and is electrically connected to the detection and traceability device (7); the output end of the electric screwdriver (36) is fastened to the output shaft (31) of the bolt length adaptive device (5).

8. The automatic bolt assembly device according to claim 6, characterized in that: The detection and traceability device (7) includes a laser rangefinder (37), a sensor support frame (38), a marking machine (39), a data processor and data processing software, and an alarm (40). The laser rangefinder (37) is detachably fastened to the sensor support frame (38), and the sensor support frame (38) is detachably fastened to the mounting platform (1). The marking machine (39) is detachably fastened to the positioning base plate (12) of the fastening device (3) of the workpiece. The data processor and the alarm (40) are located on the upper part of the frame (11) of the supporting work platform (2) for easy visual inspection. The data processing software is embedded in the data processor.

9. The automatic bolt assembly device according to claim 7, characterized in that: The loading and unloading device includes a robotic arm, a vision system, a bolt loading position, and a workpiece loading position.

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