Pneumatic drive rotating mechanism

Abstract

The utility model discloses a pneumatic driving rotating mechanism which comprises a base plate and a rotating panel which is connected with the base plate through a rotating shaft assembly and horizontally located above the base plate, a rotating driving air cylinder is arranged on the upper surface of the base plate, and the rear end of the rotating driving air cylinder is rotationally connected with an air cylinder connecting block. An air cylinder head of the rotary driving air cylinder is rotationally connected with one end of a main driving arm, the position, close to the air cylinder head, of the main driving arm is rotationally connected with a driving arm rotary supporting piece, the other end of the main driving arm is rotationally connected with one end of an auxiliary driving arm, and the other end of the auxiliary driving arm is rotationally connected with a fixing block. And the fixed block is fixedly connected with the rotary panel. The utility model has the advantages of simple structure, safe and reliable performance, reduced cost and saved space.

Description

Technical Field

[0001] The utility model relates to the technical field of rotating mechanisms, in particular to a pneumatically driven rotating mechanism. Background Art

[0002] Welding fixture turntables are widely used in related activities in the automotive manufacturing industry, especially in welding equipment with manual welding operations. Workers use pneumatic or electric control turntables to rotate the tooling 90 degrees to facilitate welding operations in different positions. However, the turntable mechanism of the existing technology uses a cylinder to drive a rack drive gear or an electric drive gear for rotational drive, and the manufacturing and procurement costs are relatively high. Therefore, it is necessary to design a new structure that can meet both cost reduction requirements and functional requirements. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings and defects of the existing technology and provide a pneumatic driven rotating mechanism with simple structure, safe and reliable performance, reduced cost, safe and reliable performance and space saving, which can be used for welding workpieces on welding production lines.

[0004] A pneumatically driven rotating mechanism comprises a base plate and a rotating panel connected to the base plate via a rotating shaft assembly and located horizontally above the base plate; a rotating driving cylinder is arranged on the upper surface of the base plate; the rear end of the rotating driving cylinder is rotatably connected to a cylinder connecting block; the cylinder head of the rotating driving cylinder is rotatably connected to one end of a main driving arm; the main driving arm is rotatably connected to a driving arm rotating support member near the cylinder head; the other end of the main driving arm is rotatably connected to one end of a secondary driving arm; the other end of the secondary driving arm is rotatably connected to a fixed block; and the fixed block is fixedly connected to the rotating panel.

[0005] Among them, the main driving arm is in the shape of a hook as a whole, including a curved portion and a first straight portion connected to the first end of the curved portion, the first straight portion is connected to the driving arm rotation support, and the second end of the curved portion is connected to the auxiliary driving arm.

[0006] Wherein, the rotating shaft assembly includes a fixed shaft fixed to the base plate, and a panel rotating shaft connected to the upper end of the fixed shaft via a bearing; the panel rotating shaft is connected to the rotating panel.

[0007] Among them, the driving arm rotation support and the main driving arm, the main driving arm and the auxiliary driving arm, and the auxiliary driving arm and the fixed block are each connected in rotation via a connecting shaft; a shaft sleeve is mounted on the connecting shaft.

[0008] Wherein, the cylinder head is connected to the main driving arm through a cylinder pin shaft, and the cylinder head is threadedly connected to the rotary driving cylinder.

[0009] Wherein, the cylinder connecting block and the driving arm rotation support are fixed on the base plate.

[0010] Wherein, two dead stops are installed on the base plate through a dead stop plate support, and the two dead stops are arranged separately.

[0011] Wherein, a positioning block is provided on the rotating panel, which is used for the rotating panel to rotate into position, stop when hitting the dead stop block, and be clamped by the clamping unit to realize the positioning of the rotating panel into position.

[0012] The clamping unit comprises at least two clamping cylinders arranged on the base plate through a cylinder support, the clamping cylinders are provided with clamping arms driven by the clamping cylinders to clamp the impact block in place, and the clamping portion of the clamping arm is provided with a clamping block.

[0013] At least four casters for supporting the rotating panel are arranged between the rotating panel and the base plate. The casters are mounted on the base plate via caster seats, and the wheel surfaces thereof are in contact with the bottom surface of the rotating panel.

[0014] The pneumatically driven rotating mechanism of this utility model converts the power of the pressure arm to the connecting rod, driving the rotating panel to achieve 90-degree rotation around the rotation axis relative to the base plate. Through the connection of the connecting shaft and bolt fastening, the rotation is reliable and free. It can be used in situations where the process requires 90-degree rotation and the cost requirement is low. By using a cylinder drive instead of a gear rack to drive the rotation, or even a motor to drive the turntable, not only can the cost of expensive gears, racks, motors, etc. be saved, but the rotation function can fully meet the requirements. The mechanism is stable and reliable, and can completely replace the high-cost turntable mechanism commonly used in the past. When used in welding production, it compresses the space occupied by the rotating mechanism, saves longitudinal installation space, and reduces the manufacturing cost of the turntable.

[0015] The pneumatically driven rotation mechanism of this utility model can be designed to suit the desired rotation angle and distance between the rotating panel and baseplate, meeting various rotational requirements. This design offers flexibility and convenience. Compared to similar devices, this device utilizes a connecting rod structure, resulting in a simpler structure and stable and reliable rotation. The connecting plates are mostly GCT plate components, resulting in low processing costs and simple assembly. The mechanism is robust, stable, economical, and easy to repair and maintain. It is widely applicable to tooling equipment requiring rotational operation.

[0016] The pneumatic driven rotating mechanism of the utility model can not only meet the specified working requirements, but also has a simple structure, good stability, and effectively reduces the manufacturing cost; the device has a reasonable structural design, safe and reliable performance, is simple and easy to operate, and is easy to manufacture and install, and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of the structure of the utility model;

[0018] Figure 2 It is a top view of the structure of the utility model;

[0019] Figure 3 This is a structural axonometric view of the present utility model;

[0020] Figure 4 This is a schematic main view of the structure behind the hidden rotating panel of the utility model;

[0021] Figure 5 This is a schematic axonometric drawing of the structure behind the utility model's hidden rotating panel;

[0022] Figure 6 It is a simplified diagram of the opening simulation of the utility model mechanism;

[0023] In the picture:

[0024] 1-rotation drive cylinder, 2-cylinder head, 3-cylinder pin, 4-cylinder connecting block, 5-main drive arm, 6 drive arm rotation support, 7-copper pad, 8-auxiliary drive arm, 9-connecting shaft, 10-fixed block, 11-base plate, 12 rotation panel, 13 fixed shaft, 14 panel rotation shaft, 15-bearing, 16-dust cover, 17-sleeve, 18-castor, 19-dead stop, 20-dead stop support, 21-clamping cylinder, 22-pressing arm, 23-pressing block, 24-cylinder support, 25-in-place bumper. DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] Please refer to the figure, a pneumatically driven rotating mechanism includes a base plate 11 and a rotating panel 12 connected to the base plate through a rotating shaft assembly and horizontally located above the base plate, which serves as a carrier of tooling that requires rotating operation. A rotating driving cylinder 1 is arranged on the upper surface of the base plate, and the rear end of the rotating driving cylinder is rotatably connected to the cylinder connecting block 4. The cylinder head 2 of the rotating driving cylinder is rotatably connected to one end of the main driving arm 5. The position of the main driving arm 5 near the cylinder head is rotatably connected to the driving arm rotating support 6. The other end of the main driving arm 5 is rotatably connected to one end of the auxiliary driving arm 8. The other end of the auxiliary driving arm 8 is rotatably connected to the fixed block 10, and the fixed block is connected and fixed to the rotating panel 12.

[0027] In some embodiments, the main drive arm of the present application is generally hook-shaped, including a curved portion and a first straight portion connected to a first end of the curved portion, the first straight portion being connected to the drive arm rotation support, and the second end of the curved portion being connected to the auxiliary drive arm. The drive arm rotation support of the present application supports and connects the main drive arm 5, allowing the main drive arm 5 to rotate around it as the axis. The auxiliary drive arm 8 is connected to the main drive arm 5 and transmits power to the rotating panel 12 to rotate it.

[0028] Specifically, the rotary drive cylinder 1 is connected to the cylinder connecting block 4 and the cylinder head 2, and the cylinder pin shaft 3 is used to connect the cylinder head 2 and the main drive arm 5. Specifically, the cylinder is connected to the main drive arm 5 by combining the cotter pin and the cylinder pin shaft 3, which is threadedly connected to the rotary drive cylinder 1; the main drive arm 5 is connected to the drive arm rotation support 6 through a connecting shaft 9, and the auxiliary drive arm 8 is connected to the main drive arm 5 and the fixed block 10 through another connecting shaft 9, that is, one side of the fixed block 10 is connected to the auxiliary drive arm 8, and the other side is connected to the rotating panel 12.

[0029] Specifically, the cylinder connecting block 4 and the driving arm rotating support 6 are connected to the base plate 11, the fixed block 10 is connected to the rotating panel 12, and the rotating panel 12 and the base plate 11 use a fixed shaft 13, a rotating shaft 14, a bearing 15, and a dust cover 16 to form a relative rotation mechanism. The fixed shaft 13 is used as the mounting shaft of the bearing 15 at the rotating fixed end. The bearing 15 is responsible for the relative rotation connection between the fixed shaft 13 and the rotating shaft 14. The rotating shaft 14 serves as a bearing mounting seat that rotates corresponding to the fixed shaft. The dust cover 16 is used to prevent dust, impurities and other foreign objects from entering the bearing.

[0030] Among them, at least four casters 18 for supporting the rotating panel are arranged between the rotating panel and the base plate, which are used to share the load imbalance of the rotating panel caused by the uneven weight of the upper mounting unit. The casters are installed on the base plate through caster seats, and the wheel surfaces are in contact with the bottom surface of the rotating panel.

[0031] The rotating panel 12 of the present application is equipped with a positioning block 25, which is used for the rotating panel to rotate into position, stop when hitting the dead stop 19, and be clamped by the clamping unit to achieve the positioning of the rotating panel 12. The clamping unit includes at least two clamping cylinders arranged on the base plate through a cylinder support. In some embodiments, at least two clamping cylinders 21 are arranged on the base plate 11 through a cylinder support 24 for positioning the rotating mechanism into position. The clamping cylinder 21 is equipped with a clamping arm 22 driven by the clamping cylinder to clamp the positioning block 25, and the clamping portion of the clamping arm is provided with a clamping block 23.

[0032] Among them, two dead stops 19 are installed on the base plate 11 through the dead stop plate support 20, which are used to limit the rotation of the rotating panel. Specifically, the dead stop block support 20 and the cylinder support 24 are connected to the base plate 11, the dead stop block 19 is connected to the dead stop block support 20, the clamping cylinder 21 is connected to the cylinder support 24, and the clamping block 23 is connected to the clamping cylinder 21 through the clamping arm 22. All connecting shafts 9 are installed with shaft sleeves 17, and copper pads 7 are installed on both sides of the rotating shaft of the main drive arm 5.

[0033] In this application, the rotary drive cylinder is a commercially available product, with an aluminum casting structure, fixedly connected in the form of a lower trunnion, and provides a stable thrust for the device through an external air source;

[0034] The 90-degree rotating pneumatic rotating mechanism of the utility model has a reasonable and ingenious design, a simple and practical structure, and realizes the turntable rotation function through a connecting rod mechanism, which can not only save some purchased components, but also save equipment space. The installation process is simple, and the stability of the structure is guaranteed. Maintenance and repair are very convenient, and the installation space is effectively increased.

[0035] During specific use, it can be designed according to the different rotation requirements of different equipment, and can be reasonably designed according to different lower installation space and height requirements. The turntable movement can be controlled by pneumatic or electric control as needed.

[0036] The utility model can be applied to single rotary tooling and equipment where part of the line body needs to be rotated. According to the actual application requirements, a suitable rotary mechanism can be designed, manufactured and installed. According to the rotation angle requirements, a rotary mechanism greater than or less than 90 degrees can be designed to meet the angle requirements under various working conditions. The action of the actuator cylinder is controlled by a valve to drive the unit mechanism on the rotary panel to rotate. It is safe, reliable and efficient, has a good operating effect on tooling that requires rotation operation, and reduces manufacturing costs at the same time.

[0037] The basic principles, main features and advantages of the present invention are shown and described above. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention.

[0038] Therefore, no matter from which point of view, the embodiments should be regarded as illustrative and non-restrictive, and the scope of the present invention is limited by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the present invention.

[0039] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. Pneumatically driven rotating mechanism, characterized in that: It includes a base plate and a rotating panel connected to the base plate through a rotating shaft assembly and horizontally located above the base plate, a rotating drive cylinder is arranged on the upper surface of the base plate, the rear end of the rotating drive cylinder is rotatably connected to the cylinder connecting block, the cylinder head of the rotating drive cylinder is rotatably connected to one end of the main driving arm, the position of the main driving arm near the cylinder head is rotatably connected to the driving arm rotating support, the other end of the main driving arm is rotatably connected to one end of the auxiliary driving arm, the other end of the auxiliary driving arm is rotatably connected to a fixed block, and the fixed block is fixedly connected to the rotating panel.

2. The pneumatically driven rotating mechanism according to claim 1, characterized in that: The main driving arm is hook-shaped as a whole, including a curved portion and a first straight portion connected to a first end of the curved portion, the first straight portion is connected to the driving arm rotation support, and the second end of the curved portion is connected to the auxiliary driving arm.

3. The pneumatically driven rotating mechanism according to claim 1, characterized in that: The rotating shaft assembly includes a fixed shaft fixed to the base plate, and a panel rotating shaft connected to the upper end of the fixed shaft via a bearing; the panel rotating shaft is connected to the rotating panel.

4. The pneumatically driven rotating mechanism according to claim 1, characterized in that: The driving arm rotation support and the main driving arm, the main driving arm and the auxiliary driving arm, and the auxiliary driving arm and the fixed block are each connected in rotation via a connecting shaft; a shaft sleeve is sleeved on the connecting shaft.

5. The pneumatically driven rotating mechanism according to claim 1, characterized in that: The cylinder head is connected to the main driving arm through a cylinder pin shaft, and the cylinder head is threadedly connected to the rotary driving cylinder.

6. The pneumatically driven rotating mechanism according to claim 1, characterized in that: The cylinder connecting block and the driving arm rotation supporting member are fixed on the base plate.

7. The pneumatically driven rotating mechanism according to claim 1, characterized in that: Two dead stops are installed on the base plate through a dead stop plate support, and the two dead stops are arranged apart.

8. The pneumatically driven rotating mechanism according to claim 7, characterized in that: The rotating panel is provided with an in-position collision block, which is used for the rotating panel to rotate into position and stop when it hits the dead stop block, and is clamped by the clamping unit to achieve the in-position positioning of the rotating panel.

9. The pneumatically driven rotating mechanism according to claim 8, characterized in that: The clamping unit comprises at least two clamping cylinders arranged on the base plate via a cylinder support, the clamping cylinders are provided with clamping arms driven by the clamping cylinders to clamp the impact block in place, and the clamping parts of the clamping arms are provided with clamping blocks.

10. The pneumatically driven rotating mechanism according to claim 1, characterized in that: At least four casters for supporting the rotating panel are arranged between the rotating panel and the base plate. The casters are installed on the base plate through caster seats, and the wheel surfaces thereof are in contact with the bottom surface of the rotating panel.

Images