Floating tightening mechanism

Abstract

The utility model relates to the technical field of tightening mechanisms, in particular to a floating tightening mechanism which comprises a tightening assembly and a floating assembly, the tightening assembly comprises a tightening gun, a clamping plate and a floating plate, and the tightening gun and the clamping plate are fixed through bolts; the conveying assembly comprises a rack, a conveying piece and a driving piece, the conveying piece is used for conveying the clamping plate, and the driving piece is used for driving the clamping plate to advance and retreat; the control assembly comprises a controller, a first position sensor and a second position sensor, the first position sensor and the second position sensor are arranged on the rack and used for detecting the position of the tightening gun and outputting a detection signal, and the controller is in control connection with the driving part; and the controller is used for receiving the position detection signals output by the first position sensor and the second position sensor and controlling the action of the driving part according to the position detection signals. In the using process of the tightening gun, the floating tightening mechanism simulates a worker to push the tightening gun to advance, and the effect of reducing manpower consumption is achieved.

Description

Technical Field

[0001] This application relates to the field of tightening mechanism technology, and in particular to a floating tightening mechanism. Background Technology

[0002] When tightening screws, electric or pneumatic bolt tightening guns are widely used equipment. In production, workers operate the tightening gun to firmly drive the bolt into the part to be processed. When workers control the tightening gun to move it back and forth or left and right, the tightening gun is prone to large-amplitude movement, which affects the work.

[0003] The existing tightening gun mechanism includes a tightening gun, a frame, an inner fixing plate, a middle fixing plate, and an outer fixing plate. A locking plate is fixed to the end of the frame. The tightening gun is slidably connected to the side wall of the frame. The inner fixing plate is mounted on the side wall of the locking plate. The middle fixing plate is bolted to the side wall of the inner fixing plate, and the outer fixing plate is bolted to the side wall of the middle fixing plate. Through holes are formed on the side walls of the locking plate, inner fixing plate, middle fixing plate, and outer fixing plate. The side wall of the tightening gun abuts against the inner wall of the through hole. When the operator uses the tightening gun mechanism to tighten the bolt, the bolt positions on the middle and outer fixing plates are adjusted to align the screwdriver bit of the tightening gun with the bolt. Then, the tightening gun is pushed forward to tighten the bolt. The tightening gun mechanism achieves the positioning of the screwdriver bit and the bolt.

[0004] The tightening gun described above requires staff to push it forward, which consumes manpower and needs improvement. Utility Model Content

[0005] In order to reduce manpower consumption by simulating the worker pushing the tightening gun forward during the use of the tightening gun through a floating tightening mechanism, this application provides a floating tightening mechanism.

[0006] This application provides a floating tightening mechanism, which adopts the following technical solution:

[0007] A floating tightening mechanism, comprising:

[0008] The tightening assembly includes a tightening gun, a locking plate, and a floating plate, wherein the tightening gun is bolted to the locking plate;

[0009] The conveying assembly includes a frame, a conveyor, and a drive unit, wherein the conveyor is used to convey the card plate, and the drive unit is used to drive the card plate forward and backward;

[0010] The control component includes a controller, a first position sensor, and a second position sensor. The controller, the first position sensor, and the second position sensor are respectively mounted on the frame and are used to detect the position of the tightening gun and output a detection signal. The controller is connected to the tightening gun and the drive unit respectively, and receives and controls the action of the drive unit in response to the position detection signal.

[0011] When the first position sensor detects that the tightening gun is in the first position, the controller controls the drive component to operate, and the bit of the tightening gun works on the bolt. Then, the controller controls the drive component to move the tightening gun to the second position.

[0012] By adopting the above technical solution, when using the floating tightening mechanism of the tightening gun to tighten bolts, the controller controls the drive component to start, and under the action of the drive component, the transmission component starts. The transmission component drives the locking plate to slide towards the tightening gun. When the tightening gun reaches the first position, the controller controls the drive component to stop. Under the action of the floating plate, the bit of the tightening gun is aligned with the bolt to be tightened, and the controller controls the tightening gun to work. After the tightening gun has finished working, the controller controls the locking plate to slide away from the tightening gun. When the tightening gun reaches the second position, the controller controls the drive component to stop. This mechanism realizes that during the use of the tightening gun, the floating tightening mechanism simulates the worker pushing the tightening gun forward, thereby reducing the consumption of manpower.

[0013] Optionally, the driving component includes a drive motor, a sliding guide rail, and a sliding block. The drive motor is mounted on the side wall of the frame, the side wall of the sliding guide rail abuts against the side wall of the frame, the sliding block is slidably connected to the side wall of the sliding guide rail, and a detection plate is mounted on the side wall of the sliding block. The detection plate can be close to the first position sensor and the second position sensor.

[0014] By adopting the above technical solution, when tightening bolts using the floating tightening mechanism, the drive motor drives the sliding block to slide on the sliding guide rail, and the setting of the detection plate makes the position sensing process more accurate.

[0015] Optionally, the conveying component includes a sliding plate and a connecting plate. The sliding plate is bolted to the side wall of the sliding block away from the sliding guide rail. The connecting plate is slidably connected to the side wall of the sliding plate away from the sliding block. The end of the connecting plate near the tightening gun is connected to the end of the sliding plate near the tightening gun via an elastic element.

[0016] By adopting the above technical solution, when tightening bolts using the floating tightening mechanism, the drive motor drives the sliding plate to slide. At this time, the elastic element is compressed. Under the action of the elastic element, the connecting plate slides on the side wall of the sliding plate toward the bolt. Under the action of the connecting plate, the tightening gun moves closer to the bolt. After the floating tightening mechanism has finished working, the drive motor drives the sliding plate to slide away from the bolt. At this time, the elastic element extends. Under the action of the elastic element, the connecting plate slides on the side wall of the sliding plate away from the bolt. The connecting plate and the elastic element are set up.

[0017] Optionally, a perforated plate is fixed to one end of the connecting plate near the tightening gun, and the other end of the perforated plate away from the connecting plate is fixed to the side wall of the floating plate. The perforated plate is located directly below the tightening gun.

[0018] By adopting the above technical solution, the perforated plate is close to the screwdriver bit of the tightening gun. When the screwdriver bit of the tightening gun needs to be replaced, the operator can replace the bit through the gap of the perforated plate, which simplifies the operator's operation of the tightening gun.

[0019] Optionally, a support plate is fixed to the side wall of the connecting plate, the side wall of the locking plate is bolted to the side wall of the support plate, a support block is fixed to the side wall of the support plate, and the side wall of the support block abuts against the side wall of the locking plate.

[0020] By adopting the above technical solution, when the connection between the clamping plate and the support plate is damaged, the clamping plate tilts towards the support plate. At this time, under the support of the support block, the tilting of the clamping plate stops. The setting of the support block increases the stability of the clamping plate during operation and reduces the damage to the equipment when the connection between the clamping plate and the support plate is damaged.

[0021] Optionally, a support ball is elastically connected to the side wall of the support plate, and the side wall of the support ball is close to the locking plate.

[0022] By adopting the above technical solution, when the tightening gun floats in the sliding direction of the slide rail, the side wall of the locking plate abuts against the side wall of the support ball. At this time, the support ball provides support for the locking plate, so that the tightening gun maintains normal working condition. This setting reduces the impact of the tightening gun floating in the sliding direction of the slide rail.

[0023] Optionally, a blocking plate is fixed to the end of the connecting plate away from the perforated plate, and the blocking plate can abut against the end of the sliding plate away from the tightening gun.

[0024] By adopting the above technical solution, when the operator uses the floating tightening mechanism to tighten the bolt, the sliding plate drives the connecting plate to slide towards the tightening gun. Under the action of the blocking plate, the relative sliding of the connecting plate on the side wall of the sliding plate stops. The setting of the blocking plate limits the relative sliding distance of the connecting plate on the sliding plate, making the sliding process of the connecting plate controllable.

[0025] Optionally, a shield is fixed to the side wall of the frame, and the side wall of the shield is close to the first position sensor and the second position sensor.

[0026] By adopting the above technical solution, the shielding reduces the adhesion of external dust to the first and second position sensors, making the operation of the first and second position sensors more stable.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. When using the floating tightening mechanism, the controller controls the drive component to move, which in turn drives the conveyor to transport the clamping plate. Under the action of the clamping plate, the tightening gun slides towards the second position. When the tightening gun reaches the second position, the controller controls the drive component to stop. Then, the controller controls the tightening gun to tighten the bolt. After the tightening gun has finished its work, the controller controls the drive component to start again, and then the tightening gun slides towards the first position. This mechanism allows the worker to push the tightening gun forward during its use, thus reducing manpower consumption.

[0029] 2. When the sliding plate slides toward the bolt, it compresses the elastic element. Then, under the action of the elastic element, the connecting plate slides toward the bolt. At this time, the side wall of the blocking plate abuts against the side wall of the sliding plate. The blocking plate is set so that the connecting plate stops sliding relative to the side wall of the sliding plate, so that the relative sliding distance of the connecting plate on the sliding plate is suitable for the floating tightening mechanism to work on the bolt. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of a floating tightening mechanism according to an embodiment of this application.

[0031] Figure 2 This is a schematic diagram of the overall structure of the driving component in the embodiments of this application.

[0032] Figure 3 This is a side view of the floating tightening mechanism in an embodiment of this application.

[0033] Reference numerals: 1. Tightening assembly; 11. Tightening gun; 12. Locking plate; 13. Floating plate; 2. Conveying assembly; 21. Frame; 22. Transmission component; 23. Drive component; 3. Control assembly; 31. Controller; 32. First position sensor; 33. Second position sensor; 231. Drive motor; 232. Sliding guide rail; 233. Sliding block; 4. Detection plate; 221. Sliding plate; 222. Connecting plate; 5. Elastic component; 6. Hollow plate; 7. Support plate; 8. Support block; 9. Support ball; 10. Blocking plate; 111. Shield. Detailed Implementation

[0034] The following is combined with Figure 1-3 This application is described in further detail.

[0035] This application discloses a floating tightening mechanism.

[0036] Reference Figure 1 A floating tightening mechanism includes a tightening component 1, a transmission component 2, and a control component 3. The tightening component 1 includes a tightening gun 11, a locking plate 12, and a floating plate 13. The locking plate 12 is bolted to the side of the tightening gun 11 away from the bit. The floating plate 13 is close to the bit of the tightening gun 11. When the tightening gun 11 tightens the bolt, the bit and the bolt are aligned under the action of the floating plate 13. The locking plate 12 fixes the position of the tightening gun 11.

[0037] refer to Figure 1 and Figure 2 The transmission component 2 includes a frame 21, a transmission component 22, and a drive component 23. The transmission component 22 is mounted on the drive component 23. The transmission component 22 includes a sliding plate 221 and a connecting plate 222. The connecting plate 222 is slidably connected to the side of the sliding plate 221 away from the frame 21. A support plate 7 is fixed to the side wall of the connecting plate 222. The support plate 7 is bolted to the locking plate 12. The end of the connecting plate 222 near the tightening gun 11 is connected to the end of the sliding plate 221 near the tightening gun 11 via an elastic element 5. The elastic element 5 is a connecting spring. When the floating tightening mechanism is in operation, the sliding plate 221 slides and compresses the elastic element 5. At this time, under the action of the elastic element 5, the connecting plate 222 slides on the side wall of the sliding plate 221. The connecting plate 222 drives the tightening gun 11 to move. The transmission component 22 and the elastic element 5 make the operation of the tightening gun 11 safer.

[0038] refer to Figure 2The driving component 23 includes a drive motor 231, a sliding guide rail 232, and a sliding block 233. The sliding guide rail 232 is bolted to the side wall of the frame 21. The drive motor 231 is fixed to the end of the sliding guide rail 232 away from the tightening gun 11. The sliding block 233 is slidably connected to the side of the sliding guide rail 232 away from the frame 21. The sliding plate 221 is bolted to the side of the sliding block 233 away from the sliding guide rail 232. When the floating tightening mechanism is in operation, the drive motor 231 drives the sliding block 233 to slide on the side wall of the sliding guide rail 232. The sliding block 233 drives the sliding plate 221 to slide. The setting of the driving component 23 simulates the worker pushing the tightening gun 11 forward, thereby reducing manpower consumption.

[0039] The control mechanism includes a controller 31, a first position sensor 32, and a second position sensor 33. The controller 31 is fixed to the end of the drive motor 231 away from the sliding guide rail 232. The first position sensor 32 is fixed to the side wall of the sliding guide rail 232 near the tightening gun 11. The second position sensor 33 is fixed to the side wall of the sliding guide rail 232 away from the tightening gun 11.

[0040] A detection piece 4 is fixed to the side wall of the sliding block 233. The detection piece 4 can approach the first position sensor 32 and the second position sensor 33. In this embodiment, the controller 31 is a microcontroller, the first position sensor 32 and the second position sensor 33 are infrared rangefinders, and the drive motor 231 is controlled by a solenoid valve. The controller 31 and the solenoid valve of the drive motor 231 are connected through an operational amplifier circuit. When the floating tightening mechanism is working, the controller 31 controls the drive motor 231 to start. At this time, the detection piece 4 slides toward the first position sensor 32. When the detection piece 4 slides to the first position sensor 32, the controller 31 controls the detection piece 4 to stop. After the tightening gun 11 finishes its work, the controller 31 controls the detection piece 4 to slide toward the second position sensor 33. This setting allows the machine to replace the manual control of the floating tightening mechanism, reducing the consumption of manpower.

[0041] refer to Figure 3 The side wall of the support plate 7 is fixed with a support block 8. In this embodiment, two support blocks 8 are preferred. The side wall of the support plate 7 is also elastically connected with a support ball 9. The position of the support ball 9 is close to the elastic element 5, and the side wall of the support ball 9 is close to the side wall of the locking plate 12. When the tightening gun 11 floats in the direction of the sliding guide rail 232, the side wall of the support ball 9 abuts against the side wall of the locking plate 12, maintaining the stability of the tightening gun 11. The setting of the support block 8 prevents the locking plate 12 from falling off and reduces the damage to the equipment.

[0042] A perforated plate 6 is fixed to one end of the connecting plate 222 near the tightening gun 11. The perforated plate 6 is located below the tightening gun 11. When disassembling the screwdriver bit, the operator can disassemble the screwdriver bit through the perforated plate 6, which simplifies the process of replacing the screwdriver bit. A blocking plate 10 is fixed to the other end of the connecting plate 222 away from the tightening gun 11. When the connecting plate 222 slides on the side wall of the sliding plate 221 toward the tightening gun 11, the blocking plate 10 restricts the sliding of the connecting plate 222, increases the safety of the floating tightening mechanism, and makes the working process of the floating tightening mechanism more stable.

[0043] A shield 111 is fixed to the side wall of the frame 21. The shield 111 is close to the first position sensor 32 and the second position sensor 33. The shield 111 reduces the influence of external dust on the first position sensor 32 and the second position sensor 33, so that when the detection piece 4 passes through the first position sensor 32 and the second position sensor 33, the first position sensor 32 and the second position sensor 33 accurately output position signals, which increases the stability of the floating tightening mechanism during operation.

[0044] The implementation principle of the floating tightening mechanism in this application embodiment is as follows: When tightening bolts using the floating tightening mechanism, the controller 31 controls the drive motor 231 to start. At this time, the sliding block 233 slides on the side wall of the sliding guide rail 232 towards the first position. The sliding plate 221 drives the locking plate 12 to slide, and the tightening gun 11 approaches the bolt. Then, the first position sensor 32 detects the position of the detection piece 4 and outputs a position signal. The controller 31 receives the signal and stops the drive motor 231 based on the control signal. Then, the controller 31 starts the tightening gun 11. After the tightening gun 11 finishes working on the bolt, the controller 31 stops the action of the tightening gun 11 and starts the drive motor 231. Under the action of the drive motor 231, the tightening gun 11 approaches the second position. This mechanism realizes that during the use of the tightening gun 11, the floating tightening mechanism simulates the worker pushing the tightening gun 11 forward, thereby reducing the consumption of manpower.

[0045] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A floating tightening mechanism, characterized in that, include: The tightening assembly (1) includes a tightening gun (11), a locking plate (12) and a floating plate (13), wherein the tightening gun (11) is bolted to the locking plate (12); The conveying assembly (2) includes a frame (21), a conveyor and a drive (23), the conveyor being used to convey the card plate (12), and the drive (23) being used to drive the card plate (12) forward and backward. The control component (3) includes a controller (31), a first position sensor (32), and a second position sensor (33). The controller (31), the first position sensor (32), and the second position sensor (33) are respectively mounted on the frame (21) and are used to detect the position of the tightening gun (11) and output a detection signal. The controller (31) is connected to the tightening gun (11) and the drive unit (23) respectively and is used to receive the position detection signals output by the first position sensor (32) and the second position sensor (33) and control the action of the drive unit (23) according to the position detection signals. When the first position sensor (32) detects that the tightening gun (11) is in the first position, the controller (31) controls the drive component (23) to operate, and the bit of the tightening gun (11) works on the bolt. Then the controller (31) controls the drive component (23) to operate and move the tightening gun (11) to the second position.

2. The floating tightening mechanism according to claim 1, characterized in that: The driving component (23) includes a drive motor (231), a sliding guide rail (232), and a sliding block (233). The drive motor (231) is mounted on the side wall of the frame (21). The side wall of the sliding guide rail (232) abuts against the side wall of the frame (21). The sliding block (233) is slidably connected to the side wall of the sliding guide rail (232). A detection plate (4) is mounted on the side wall of the sliding block (233). The detection plate (4) can approach the first position sensor (32) and the second position sensor (33).

3. The floating tightening mechanism according to claim 2, characterized in that: The conveying component includes a sliding plate (221) and a connecting plate (222). The sliding plate (221) is bolted to the side wall of the sliding block (233) away from the sliding guide rail (232). The connecting plate (222) is slidably connected to the side wall of the sliding plate (221) away from the sliding block (233). The end of the connecting plate (222) near the tightening gun (11) is connected to the end of the sliding plate (221) near the tightening gun (11) via an elastic element (5).

4. The floating tightening mechanism according to claim 3, characterized in that: A perforated plate (6) is fixed to one end of the connecting plate (222) near the tightening gun (11). The end of the perforated plate (6) away from the connecting plate (222) is fixed to the side wall of the floating plate (13). The perforated plate (6) is located directly below the tightening gun (11).

5. A floating tightening mechanism according to claim 4, characterized in that: The side wall of the connecting plate (222) is fixed with a support plate (7), the side wall of the locking plate (12) is bolted to the side wall of the support plate (7), the side wall of the support plate (7) is fixed with a support block (8), and the side wall of the support block (8) abuts against the side wall of the locking plate (12).

6. A floating tightening mechanism according to claim 5, characterized in that: The side wall of the support plate (7) is elastically connected to a support ball (9), and the side wall of the support ball (9) is close to the locking plate (12).

7. A floating tightening mechanism according to claim 6, characterized in that: A blocking plate (10) is fixed to one end of the connecting plate (222) away from the hollow plate (6), and the blocking plate (10) can abut against the end of the sliding plate (221) away from the tightening gun (11).

8. A floating tightening mechanism according to claim 1, characterized in that: A shield (111) is fixed to the side wall of the frame (21), and the side wall of the shield (111) is close to the first position sensor (32) and the second position sensor (33).

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