A robotic tightening head mechanism

Abstract

The utility model relates to automatic tightening equipment technical field, especially a kind of robot tightening head mechanism.Its technical scheme includes: mounting bracket, rotating shaft, drive motor, positioning bracket, tightening mechanism, mounting bracket, light source and camera;Mounting bracket is connected external equipment by positioning bracket, and positioning bracket is provided with multiple connecting holes to realize accurate fixing and adaptive installation, drive motor rotates by the second drive shaft driving driving part, driving part is matched with the transmission groove of transmission part by the limiting block, and the limiting effect of the arc-shaped groove of driving part and transmission part, power is transmitted to the first drive shaft, the telescopic cylinder on the first drive shaft controls the axial movement of tightening head by telescopic link, cooperates the rotation of first drive shaft to complete tightening action, the camera in mounting bracket and the light source below are powered by external power supply, form vision system, realize the illumination of position to be tightened, imaging positioning and tightening quality detection.

Description

Technical Field

[0001] This utility model relates to the field of automated tightening equipment technology, specifically a robotic tightening head mechanism. Background Technology

[0002] In the field of automated manufacturing, screw tightening is a critical process in product assembly, and its tightening accuracy and efficiency directly affect the assembly quality and production pace. Traditional tightening equipment often uses a single drive shaft to directly drive the tightening head, which has the following problems: Traditional mechanisms rely on direct gear meshing or belt drives for power transmission. Gear meshing is prone to increased transmission clearance due to tooth wear, while belt drives are susceptible to slippage. Both cause fluctuations in the tightening head's rotational speed, resulting in decreased tightening torque control accuracy and making it difficult to meet the tightening requirements of high-precision products. Traditional tightening equipment typically requires manual pre-positioning of the screws to be tightened or relies on mechanical limits for rough alignment, making it impossible to identify screw position deviations or omissions in real time. Furthermore, there is a lack of effective visual inspection methods after tightening, making it difficult to determine whether the screws are properly tightened or whether there are any quality defects such as deformation. This necessitates additional manual inspection steps, reducing production efficiency. Therefore, we propose a robotic tightening head mechanism to solve these existing problems. Utility Model Content

[0003] The purpose of this invention is to provide a robot tightening head mechanism to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a robot tightening head mechanism, comprising a mounting bracket, a rotating shaft, a drive motor, a positioning bracket, a tightening mechanism, and a mounting frame. The mounting bracket is symmetrically provided with rotating shafts, a drive motor is provided on one side of the rotating shaft, and a mounting frame is provided on one side of the mounting bracket away from the drive motor. A camera is provided inside the mounting frame, and a light source is provided below the mounting frame. A tightening mechanism is provided on one side of the mounting bracket.

[0005] Preferably, the tightening mechanism includes a tightening frame, a transmission component, a transmission groove, a first drive shaft, a second drive shaft, a driving component, a fixing block, a limiting block, and a transmission chamber. The mounting bracket has a transmission chamber on one side of the mounting bracket, and a tightening frame is fixedly connected inside the transmission chamber. The output end of the drive motor is fixedly connected to the second drive shaft, and a driving component is provided on the side of the second drive shaft away from the drive motor. A fixing block is fixedly connected to one side of the driving component, and a limiting block is provided on the fixing block.

[0006] Preferably, a first drive shaft is movably connected inside the transmission chamber, and a transmission component is fixedly connected to the first drive shaft. Multiple transmission grooves are equally spaced on the transmission component, a limiting block is located on the transmission groove, and arc-shaped grooves are equally spaced on the transmission component, with the drive component and the arc-shaped grooves cooperating with each other.

[0007] Preferably, a telescopic cylinder is fixedly connected to the first drive shaft, a telescopic rod is fixedly connected to the output end of the telescopic cylinder, and a tightening head is provided on the side of the telescopic rod away from the telescopic cylinder.

[0008] Preferably, the mounting bracket is provided with a positioning bracket between the rotating shafts, and the second drive shaft is located on the rotating shaft and the positioning bracket.

[0009] Preferably, the mounting bracket is connected to external devices via a positioning bracket, which has multiple connection holes, and the light source and camera are electrically connected to an external power source.

[0010] Compared with the prior art, the beneficial effects of this utility model are: 1. When the drive motor is powered on, it directly transmits rotational power to the second drive shaft. The second drive shaft is supported by a rotating shaft and a positioning bracket. A drive component is installed on the side of the second drive shaft away from the motor. Power is transmitted to the transmission component through the drive component. The drive component rotates synchronously with the second drive shaft. A limit block is installed on a fixed block on one side of the drive component, and the limit block is precisely locked in the transmission groove of the transmission component. The transmission component has an arc-shaped groove that matches the drive component. When the drive component rotates, the arc-shaped groove restricts the movement trajectory of the drive component. At the same time, the limit block pushes the transmission component in the transmission groove, converting the rotational power of the drive component into the stable rotation of the transmission component. A telescopic cylinder fixed on the first drive shaft is responsible for controlling the axial movement of the tightening head, which, in conjunction with the rotation of the first drive shaft, achieves tightening.

[0011] 2. One end of the positioning bracket is connected to the mounting bracket, and the other end is locked to the external equipment using bolts, screws and other fasteners through multiple connection holes. The positioning bracket forms a whole with the tightening head mechanism and the external equipment, avoiding tightening deviation caused by the shaking of the mechanism during the tightening process, and providing a structural foundation for subsequent high-precision tightening operations. The vision system composed of light source and camera, powered by an external power supply, realizes the illumination imaging positioning function, providing visual guidance and quality inspection support for the tightening operation. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the tightening mechanism in this utility model; Figure 3 This is a top view of the mounting bracket in this utility model; Figure 4 for Figure 3 A schematic cross-sectional view along the AA direction.

[0013] In the diagram: 1. Mounting bracket; 2. Rotating shaft; 3. Drive motor; 4. Positioning bracket; 5. Tightening mechanism; 501. Tightening frame; 502. Transmission component; 503. Transmission groove; 504. First drive shaft; 505. Second drive shaft; 506. Drive component; 507. Fixing block; 508. Limiting block; 509. Transmission chamber; 6. Mounting frame; 7. Light source; 8. Telescopic cylinder; 9. Telescopic rod; 10. Tightening head; 11. Camera. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0015] like Figures 1-4 As shown, the present invention proposes a robot tightening head mechanism, including a mounting bracket 1, a rotating shaft 2, a drive motor 3, a positioning bracket 4, a tightening mechanism 5, and a mounting frame 6. The rotating shaft 2 is symmetrically arranged on the mounting bracket 1, the drive motor 3 is arranged on one side of the rotating shaft 2, and the mounting frame 6 is arranged on one side of the mounting bracket 1 away from the drive motor 3. A camera 11 is arranged inside the mounting frame 6, and a light source 7 is arranged below the mounting frame 6. The tightening mechanism 5 is arranged on one side of the mounting bracket 1 and the mounting frame 6.

[0016] In an optional embodiment, the tightening mechanism 5 includes a tightening frame 501, a transmission component 502, a transmission groove 503, a first drive shaft 504, a second drive shaft 505, a drive component 506, a fixing block 507, a limiting block 508, and a transmission chamber 509. The mounting bracket 1 has a transmission chamber 509 on one side of the mounting bracket 6. The tightening frame 501 is fixedly connected inside the transmission chamber 509. The output end of the drive motor 3 is fixedly connected to the second drive shaft 505. The drive component 506 is provided on the side of the second drive shaft 505 away from the drive motor 3. The fixing block 507 is fixedly connected to one side of the drive component 506. The limiting block 508 is provided on the fixing block 507.

[0017] In an optional embodiment, a first drive shaft 504 is movably connected inside the transmission chamber 509, and a transmission component 502 is fixedly connected to the first drive shaft 504. A plurality of transmission grooves 503 are equally spaced on the transmission component 502, a limiting block 508 is located on the transmission groove 503, and an arc-shaped groove is equally spaced on the transmission component 502. The drive component 506 and the arc-shaped groove cooperate with each other.

[0018] In an optional embodiment, a telescopic cylinder 8 is fixedly connected to the first drive shaft 504, and a telescopic rod 9 is fixedly connected to the output end of the telescopic cylinder 8. A tightening head 10 is provided on the side of the telescopic rod 9 away from the telescopic cylinder 8.

[0019] In an optional embodiment, the mounting bracket 1 is provided with a positioning bracket 4 between the rotating shaft 2, and the second drive shaft 505 is located on the rotating shaft 2 and the positioning bracket 4. When the mechanism is started, the drive motor 3 is powered on and runs, directly transmitting rotational power to the second drive shaft 505. The second drive shaft 505 is supported by the rotating shaft 2 and the positioning bracket 4. A drive component 506 is installed on the side of the second drive shaft 505 away from the motor. Power is transmitted to the transmission component 502 through the drive component 506. The drive component 506 rotates synchronously with the second drive shaft 505. A limit block 508 is installed on a fixed block 507 on one side of the drive component 506, and the limit block 508 is precisely locked in the transmission groove 503 of the transmission component 502. The transmission component 502 has an arc-shaped groove that matches the drive component 506. When the drive component 506 rotates, the arc-shaped groove restricts the movement trajectory of the drive component. At the same time, the limit block 508 pushes the transmission component 502 in the transmission groove 503, converting the rotational power of the drive component 506 into the stable rotation of the transmission component 502. The telescopic cylinder 8 fixed on the first drive shaft 504 is responsible for controlling the axial movement of the tightening head 10, which, in conjunction with the rotation of the first drive shaft 504, achieves tightening.

[0020] In an optional embodiment, the mounting bracket 1 is connected to an external device via a positioning bracket 4, which has multiple connection holes, and the light source 7 and the camera 11 are electrically connected to an external power source. One end of the positioning bracket 4 is connected to the mounting bracket 1, and the other end is locked to the external equipment using bolts, screws and other fasteners through multiple connection holes. The positioning bracket 4 forms a whole with the tightening head mechanism and the external equipment, avoiding tightening deviation caused by the shaking of the mechanism during the tightening process, and providing a structural foundation for subsequent high-precision tightening operations. The vision system composed of the light source 7 and the camera 11, powered by an external power supply, realizes the illumination, imaging and positioning functions, providing visual guidance and quality inspection support for the tightening operation.

[0021] The working principle of this utility model is as follows: When the device is used, the drive motor 3 is powered on and runs when the mechanism is started, directly transmitting the rotational power to the second drive shaft 505. The second drive shaft 505 is supported by the rotating shaft 2 and the positioning bracket 4. A drive component 506 is installed on the side of the second drive shaft 505 away from the motor. Power is transmitted to the transmission component 502 through the drive component 506. The drive component 506 rotates synchronously with the second drive shaft 505. A limit block 508 is installed on the fixing block 507 on one side of the drive component 506. 8 is precisely fitted into the transmission groove 503 of the transmission component 502. The transmission component 502 has an arc-shaped groove that matches the drive component 506. When the drive component 506 rotates, the arc-shaped groove restricts the movement trajectory of the drive component. At the same time, the limiting block 508 pushes the transmission component 502 in the transmission groove 503, converting the rotational power of the drive component 506 into the stable rotation of the transmission component 502. The telescopic cylinder 8 fixed on the first drive shaft 504 is responsible for controlling the axial movement of the tightening head 10, which, in conjunction with the rotation of the first drive shaft 504, achieves tightening. One end of the positioning bracket 4 is connected to the mounting bracket 1, and the other end is locked to the external equipment using bolts, screws and other fasteners through multiple connection holes. The positioning bracket 4 forms a whole with the tightening head mechanism and the external equipment, avoiding tightening deviation caused by the shaking of the mechanism during the tightening process, and providing a structural foundation for subsequent high-precision tightening operations. The vision system composed of the light source 7 and the camera 11, powered by an external power supply, realizes the illumination, imaging and positioning functions, providing visual guidance and quality inspection support for the tightening operation.

[0022] It should be understood that the specific embodiments described above are for illustrative purposes or to explain the principles of this utility model, and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A robot tightening head mechanism, characterized in that: The device includes a mounting bracket (1), a rotating shaft (2), a drive motor (3), a positioning bracket (4), a tightening mechanism (5), and a mounting frame (6). The mounting bracket (1) is symmetrically provided with rotating shafts (2), and a drive motor (3) is provided on one side of the rotating shaft (2). The mounting frame (6) is provided on one side of the mounting bracket (1) away from the drive motor (3). A camera (11) is provided inside the mounting frame (6), and a light source (7) is provided below the mounting frame (6). The mounting bracket (1) is provided with a tightening mechanism (5) on one side of the mounting frame (6).

2. The robot tightening head mechanism according to claim 1, characterized in that: The tightening mechanism (5) includes a tightening frame (501), a transmission component (502), a transmission groove (503), a first drive shaft (504), a second drive shaft (505), a drive component (506), a fixing block (507), a limiting block (508), and a transmission chamber (509). The mounting bracket (1) has a transmission chamber (509) on one side of the mounting bracket (6). The tightening frame (501) is fixedly connected inside the transmission chamber (509). The output end of the drive motor (3) is fixedly connected to the second drive shaft (505). The drive component (506) is provided on the side of the second drive shaft (505) away from the drive motor (3). The fixing block (507) is fixedly connected on one side of the drive component (506). The limiting block (508) is provided on the fixing block (507).

3. The robot tightening head mechanism according to claim 2, characterized in that: The transmission chamber (509) is movably connected to a first drive shaft (504), and a transmission component (502) is fixedly connected to the first drive shaft (504). Multiple transmission grooves (503) are equally spaced on the transmission component (502), and a limiting block (508) is located on the transmission groove (503). Arc-shaped grooves are equally spaced on the transmission component (502), and the drive component (506) cooperates with the arc-shaped grooves.

4. The robot tightening head mechanism according to claim 3, characterized in that: A telescopic cylinder (8) is fixedly connected to the first drive shaft (504), and a telescopic rod (9) is fixedly connected to the output end of the telescopic cylinder (8). A tightening head (10) is provided on the side of the telescopic rod (9) away from the telescopic cylinder (8).

5. The robot tightening head mechanism according to claim 1, characterized in that: The mounting bracket (1) has a positioning bracket (4) between the rotating shaft (2), and the second drive shaft (505) is located on the rotating shaft (2) and the positioning bracket (4).

6. The robot tightening head mechanism according to claim 1, characterized in that: The mounting bracket (1) is connected to external devices through the positioning bracket (4). The positioning bracket (4) has multiple connection holes, and the light source (7) and camera (11) are electrically connected to the external power supply.

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