Electrically powered screw assembly station

Abstract

The application provides an electric tightening assembly platform, and belongs to the technical field of mechanical assembly. The electric tightening assembly platform comprises a rack and a tightening tool. A clamp is arranged on the table top of the rack. A spring balancer is arranged above the rack. The tightening tool is hung on the spring balancer. A camera is arranged at the upper end of the rack. A limiting sensing mechanism is arranged on the spring balancer and is linked with the camera. The application has the following effects: the spring balancer is used to balance the gravity of the tightening tool. When the tightening tool is returned upward, the limiting sensing mechanism is used to determine whether the tightening tool is in place, and the camera is triggered to take a photo of the workpiece on the clamp. The original independent photo-taking action is integrated into the returning action of the tightening tool. The returning action of the tightening tool can avoid the photo-taking area, and the operation steps are simplified.

Description

Technical Field

[0001] This application relates to the field of mechanical assembly technology, and more specifically, to an electric tightening assembly table. Background Technology

[0002] In the screw assembly process, an electric screwdriver or pneumatic screwdriver is used to tighten the screws onto the workpiece. To reduce the weight of the electric screwdriver, a spring balancer is usually used to suspend it on a stand. After the operation is completed, a camera is used to photograph the workpiece to ensure that all screws are installed in place.

[0003] Specifically, after the operation is complete, the electric screwdriver should be moved away from the workpiece to avoid obstructing the photo, and then the photo should be taken. This process is rather cumbersome and affects assembly efficiency. Utility Model Content

[0004] To overcome the above deficiencies, this application provides an electric tightening assembly table, which aims to improve the problems mentioned in the background art.

[0005] This application provides an electric tightening assembly table, including a frame and a tightening tool. A clamp is provided on the table surface of the frame, and a spring balancer is provided above the frame. The tightening tool is suspended on the spring balancer. A camera is provided at the upper end of the frame, and a limit sensing mechanism is provided on the spring balancer to be linked with the camera.

[0006] In one specific implementation, the tightening tool is pneumatically powered, and a reaction arm is provided between the tightening tool and the stand.

[0007] In the above implementation process, pneumatics is a common tightening power. Since it generates a large torque, it is paired with a counterforce arm to offset it and reduce operator fatigue. In this embodiment, the counterforce arm is made of carbon fiber.

[0008] In one specific implementation, the limit sensing mechanism includes a bracket and an infrared proximity switch, the bracket being mounted on the body of the spring balancer, and the proximity switch being mounted on the bracket.

[0009] In one specific implementation, the limit sensing mechanism further includes a reflector plate disposed on the cable of the spring balancer. The reflector plate is used to reflect the light of the proximity switch. The bracket abuts against the reflector plate. A clamping block is fixedly connected below the reflector plate. The clamping block is clamped on the cable of the spring balancer. A screw is screwed onto the clamping block.

[0010] In the above implementation process, the bracket is used to install the proximity switch and provide a limit for the reflector. The reflector is circular to avoid the failure of reflection due to the twisting of the spring balancer's cable. When the tightening tool is pulled upward, it drives the reflector upward. The proximity switch senses the proximity of the reflector and triggers the camera to take a picture. This ensures that the tightening tool returns to its original position and uses the returning action to trigger the camera to take a picture, simplifying the operation process. The reflector and clamp can move along the spring balancer's cable and are fixed by the claw screw, making the height adjustable.

[0011] In one specific implementation, the stand is equipped with a control box and indicator lights.

[0012] In the above implementation process, the control box is used to control the movement of the fixture, and the three-color indicator light is used to display the status of the assembly station.

[0013] In one specific implementation, the stand is equipped with an automatic screw box.

[0014] In the above process, the automatic screw box automatically and pneumatically ejects the corresponding screws according to the condition of the workpiece. The automatic screw box is a conventional device and will not be described in detail here.

[0015] In one specific implementation, a barcode scanner is also installed on the stand.

[0016] In the above implementation process, the barcode scanner is used to scan the workpiece for traceability.

[0017] In one specific implementation, the stand is equipped with a host computer and a display, with the host computer located below the stand and the display located above the stand.

[0018] In the above implementation process, the host computer is used to receive workpiece information and control the indicator lights, camera and fixture movements through the control box.

[0019] Compared with the prior art, the beneficial effects of this application are: by using a spring balancer to balance the weight of the tightening tool, when the tightening tool returns to its original position, the limit sensing mechanism can determine whether it is in place and trigger the camera to take a picture of the workpiece on the fixture. The originally separate action of taking pictures is integrated into the action of the tightening tool returning to its original position, which not only ensures that the tightening tool returns to avoid the picture area, but also simplifies the operation steps. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the electric tightening assembly table provided in the embodiments of this application; Figure 2 A schematic diagram showing the connection relationship between the limit sensing mechanism and the spring balancer provided in the embodiments of this application.

[0022] In the diagram: 10-stand; 11-control box; 12-indicator light; 13-automatic screw box; 14-barcode scanner; 15-main unit; 16-display; 20-tightening tool; 30-clamp; 40-spring balancer; 50-camera; 60-limit sensing mechanism; 61-bracket; 62-proximity switch; 63-reflector; 64-clamping block; 65-claw screw; 70-reaction arm. Detailed Implementation

[0023] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0024] Please see Figures 1-2 This application provides an electric tightening assembly table, including a frame 10 and a tightening tool 20. A clamp 30 is provided on the table surface of the frame 10, and a spring balancer 40 is provided above the frame 10. The tightening tool 20 is suspended on the spring balancer 40. A camera 50 is provided at the upper end of the frame 10, and a limit sensing mechanism 60 is provided on the spring balancer 40 and linked with the camera 50. The spring balancer 40 balances the weight of the tightening tool 20. When the tightening tool 20 returns to its original position, the limit sensing mechanism 60 can determine whether it is in position and trigger the camera 50 to take a picture of the workpiece on the clamp 30. The originally separate picture-taking action is integrated into the return action of the tightening tool 20, which not only ensures that the tightening tool 20 returns to avoid the picture area, but also simplifies the operation steps.

[0025] Please see Figures 1-2 The tightening tool 20 is pneumatically powered, and a reaction arm 70 is provided between the tightening tool 20 and the stand 10. Pneumatic power is a common tightening power source. Since it generates a large torque, the reaction arm 70 is used to counteract it and reduce operator fatigue. In this embodiment, the reaction arm 70 is made of carbon fiber.

[0026] Please see Figures 1-2The limit sensing mechanism 60 includes a bracket 61 and an infrared proximity switch 62. The bracket 61 is mounted on the body of the spring balancer 40, and the proximity switch 62 is mounted on the bracket 61. The limit sensing mechanism 60 also includes a reflector 63, which is disposed on the pull cable of the spring balancer 40. The reflector 63 is used to reflect the light from the proximity switch 62. The bracket 61 abuts against the reflector 63. A clamping block 64 is fixedly connected to the underside of the reflector 63. The clamping block 64 is clamped on the pull cable of the spring balancer 40, and a screw 65 is screwed onto the clamping block 64. The bracket 61 is used to install the proximity switch 62 and to provide a limit for the reflector 63. The reflector 63 is circular to prevent the cable of the spring balancer 40 from twisting and causing the reflection to fail. When the tightening tool 20 is pulled upward, it drives the reflector 63 upward. The proximity switch 62 senses the approach of the reflector 63 and triggers the camera 50 to take a picture. This ensures that the tightening tool 20 returns to its original position and uses the returning action to trigger the camera 50 to take a picture, simplifying the operation process. The reflector 63 and the clamp 64 can move along the cable of the spring balancer 40 and are fixed by the claw screw 65 to achieve height adjustment.

[0027] Please see Figures 1-2 The stand 10 is equipped with a control box 11 and indicator lights 12. The control box 11 is used to control the movement of the fixture 30, and the three-color indicator lights 12 are used to display the status of the assembly station.

[0028] Please see Figures 1-2 An automatic screw box 13 is installed on the stand 10. The automatic screw box 13 automatically and pneumatically ejects the corresponding screws according to the condition of the workpiece. The automatic screw box 13 is a conventional device and will not be described in detail here.

[0029] Please see Figures 1-2 The platform 10 is also equipped with a barcode scanner 14. The barcode scanner 14 is used to scan the workpiece for traceability.

[0030] Please see Figures 1-2 The host 15 and the display 16 are mounted on the table 10. The host 15 is located below the table 10, and the display 16 is located above the table 10. The host 15 is used to receive workpiece information and control the indicator light 12, camera 50 and fixture 30 through the control box 11.

[0031] The working principle of the electric tightening assembly table is as follows: the tightening tool 20 is pneumatic, which generates a large torque. It is counteracted by a reaction arm 70 to reduce operator fatigue. The gravity is balanced by a spring balancer 40, making it easy to store and retract at a high position. When the tightening assembly work is completed, the tightening tool 20 is simply pulled upward, which drives the reflector 63 upward. The proximity switch 62 senses the approach of the reflector 63 and triggers the camera 50 to take a picture. This ensures that the tightening tool 20 returns to its original position and uses the returning action to trigger the camera 50 to take a picture, simplifying the operation process.

[0032] In summary, by using the spring balancer 40 to balance the weight of the tightening tool 20, when the tightening tool 20 returns to its original position, the limit sensor mechanism 60 can determine whether it is in position and trigger the camera 50 to take a picture of the workpiece on the fixture 30. The originally separate picture-taking action is integrated into the return action of the tightening tool 20, which not only ensures that the tightening tool 20 returns to avoid the picture area, but also simplifies the operation steps.

[0033] The above are merely embodiments of this application and are not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, improvements, or equivalent substitutions made within the spirit and principles of this application should be included within the scope of protection of this application. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

Claims

1. An electric tightening assembly table, characterized in that, The device includes a stand (10) and a tightening tool (20). A clamp (30) is provided on the table surface of the stand (10). A spring balancer (40) is provided above the stand (10). The tightening tool (20) is suspended on the spring balancer (40). A camera (50) is provided at the upper end of the stand (10). A limit sensing mechanism (60) is provided on the spring balancer (40) and is linked with the camera (50).

2. The electric tightening assembly table according to claim 1, characterized in that, The tightening tool (20) is pneumatically powered, and a reaction arm (70) is provided between the tightening tool (20) and the stand (10).

3. The electric tightening assembly table according to claim 2, characterized in that, The limit sensing mechanism (60) includes a bracket (61) and an infrared proximity switch (62). The bracket (61) is mounted on the body of the spring balancer (40), and the proximity switch (62) is mounted on the bracket (61).

4. The electric tightening assembly table according to claim 3, characterized in that, The limit sensing mechanism (60) also includes a reflector (63), which is disposed on the cable of the spring balancer (40). The reflector (63) is used to reflect the light of the proximity switch (62). The bracket (61) abuts against the reflector (63). A clamp (64) is fixedly connected to the underside of the reflector (63). The clamp (64) is clamped on the cable of the spring balancer (40). A screw (65) is screwed onto the clamp (64).

5. The electric tightening assembly table according to claim 4, characterized in that, The stand (10) is equipped with a control box (11) and an indicator light (12).

6. The electric tightening assembly table according to claim 5, characterized in that, An automatic screw box (13) is provided on the stand (10).

7. An electric tightening assembly table according to claim 6, characterized in that, The stand (10) is also equipped with a barcode scanner (14).

8. The electric tightening assembly table according to claim 7, characterized in that, The stand (10) is provided with a host (15) and a display (16), the host (15) is located below the stand (10), and the display (16) is located above the stand (10).

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