Station switching mechanism for large workpiece continuous production line

Abstract

The utility model discloses a station switching mechanism for a large workpiece continuous production line. The station switching mechanism comprises a servo motor, a speed reducer, a worm and gear reduction gearbox, an adjustable coupler, a positioning pin, a driving crank, a rotating shaft assembly, a connecting rod frame, a workpiece bracket, an adjusting block assembly, a crank in-place detection switch, a base and an industrial felt gasket. According to the scheme, by arranging the two worm and gear reduction gearboxes, the adjustable coupler and the positioning pin, the dual-drive function is achieved, it is guaranteed that a reverse crank structure does not exist in the operation process, a workpiece cannot fall off, meanwhile, it is guaranteed that cranks are parallel to one another, and the positioning precision is guaranteed; two workpiece brackets are arranged, non-metal gaskets such as industrial felts are laid, conversion among three stations is achieved, the position changing efficiency is improved, and meanwhile it is guaranteed that workpieces are not collided when the stations are converted; the whole mechanism is provided with a servo motor and a speed reducer for driving, the transposition time is shortened, the production efficiency is improved, and automatic station conversion control can be achieved through joint control with process main equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of station conversion mechanisms, and more specifically, the utility model relates to a station conversion mechanism for a continuous production line of large workpieces. Background Art

[0002] With the production requirements of various industries, the volume of workpieces in design is getting larger and longer, and the transfer operation between production processes is relatively cumbersome, time-consuming, and inefficient. At present, there are two ways to convert the stations of large workpieces. One is mainly manual operation, using lifting equipment and slings for hoisting, and transferring back and forth between each process station. During the movement process, there will be shaking, and there are risks such as bumping and falling. When necessary, special personnel must support, which has an impact on the personal safety of operators. When the workpiece arrives, it is easy to cause impact vibration, damaging the workpiece and equipment. The other is a parallelogram crank and connecting rod mechanism driven by a common motor, with only one driving crank. The driven crank is parallel to the driving crank and is not easy to adjust. As the station is converted, the center of mass of the workpiece constantly changes, and it may be converted into an anti-crank and connecting rod structure, causing the workpiece to fall. Moreover, when the workpiece arrives, the braking motor brakes, forcing the workpiece to stop moving, with a large impact vibration, inaccurate positioning, and high control requirements for motor deceleration. This station conversion method cannot achieve the complete smoothness during the operation of the workpiece, resulting in waste of working hours and reduced production efficiency. Summary of the Utility Model

[0003] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides a station conversion mechanism for a continuous production line of large workpieces to solve the problem that the existing main workpiece station conversion methods have certain defects, resulting in waste of working hours and reduced production efficiency.

[0004] To solve the above technical problems, the utility model provides the following technical solution: A station conversion mechanism for a continuous production line of large workpieces, comprising a servo motor, a reducer, a worm and worm gear reduction box, an adjustable coupling, a positioning pin, a driving crank, a rotating shaft assembly, a connecting rod frame, a workpiece bracket, an adjustment block assembly, a crank in-place detection switch, a base, and an industrial felt gasket.

[0005] Among them, a worm and worm gear reduction box is installed on each side of the base. One of the worm and worm gear reduction boxes installs a servo motor and a reducer. The two worm and worm gear reduction boxes are connected by an adjustable coupling in the middle. The worm output shafts of the two worm and worm gear reduction boxes are respectively installed and connected to the input end of the driving crank. The output end of the driving crank is connected and fixed to the connecting rod frame through the rotating shaft assembly. Two workpiece brackets are installed on the connecting rod frame. Industrial felt gaskets are laid on both of the two workpiece brackets. The crank in-place detection switch is installed on the left and right sides of the worm and worm gear reduction box body. An adjustment block assembly is installed on each side of the base.

[0006] Among them, the two worm and worm gear speed reducers are connected by an adjustable coupling.

[0007] Among them, the positioning pins are arranged on the surface of the adjustable coupling.

[0008] The beneficial effects of the above technical solutions of the present utility model are as follows:

[0009] In the above solution, by setting two worm and worm gear speed reducers, an adjustable coupling, and positioning pins, a dual-drive function is achieved, ensuring that there is no reverse crank structure during operation, preventing the workpiece from falling, and at the same time ensuring that the drive cranks are parallel to each other to ensure the positioning accuracy; setting two workpiece brackets and laying non-metallic gaskets such as industrial felt realizes the conversion between three workstations, improves the conversion efficiency, and at the same time ensures that the workpieces are not knocked during the workstation conversion; the base is provided with an adjustment block assembly, which is convenient for adjusting the concentricity between the conversion mechanism workstation and the process workstation during installation; detection switches are arranged on both sides of the worm and worm gear speed reducer housing, which is convenient for judging the conversion position of the workpiece and is connected to the control system of the main process equipment, facilitating the realization of automatic control without manual operation; the entire mechanism is driven by a servo motor and a speed reducer, shortening the conversion time, improving production efficiency, reducing labor intensity, reducing the number of operators, and can be linked with the main process equipment to realize the automatic control of workstation conversion. Description of the Drawings

[0010] Figure 1 It is a schematic diagram of the overall structure of the present utility model and three workstations;

[0011] Figure 2 It is for the Figure 1 top view of the present utility model;

[0012] Figure 3 It is for the Figure 1 left view of the present utility model;

[0013] Figure 4 It is for the Figure 1 partial sectional view taken along A-A in the present utility model.

[0014] [Reference Numerals]

[0015] 1. Base; 2. Worm and Worm Gear Speed Reducer; 3. Speed Reducer; 4. Servo Motor; 5. Linkage Frame; 6. Workpiece Bracket; 7. Industrial Felt Gasket; 8. Rotating Shaft Assembly; 9. Drive Crank; 10. Crank In-Place Detection Switch; 11. Adjustment Block Assembly; 12. Adjustable Coupling; 13. Positioning Pin. Detailed Description of the Preferred Embodiment

[0016] In order to make the technical problems, technical solutions and advantages to be solved by the present utility model clearer, the following will be described in detail with reference to the drawings and specific embodiments.

[0017] As shown in the attachedFigure 1 to the appendix Figure 4 An embodiment of the present utility model provides a station conversion mechanism for a continuous production line of large workpieces, which comprises a servo motor 4, a speed reducer 3, a worm and worm gear reduction box 2, an adjustable coupling 12, a positioning pin 13, a driving crank 9, a rotating shaft assembly 8, a connecting rod frame 5, a workpiece bracket 6, an adjustment block assembly 11, a crank in-place detection switch 10, a base 1 and an industrial felt gasket 7.

[0018] Wherein, two worm and worm gear reduction boxes 2 are respectively installed on both sides of the base 1. One of the worm and worm gear reduction boxes 2 is installed with the servo motor 4 and the speed reducer 3. The two worm and worm gear reduction boxes 2 are connected by transmission through the adjustable coupling 12 in the middle. The worm output shafts of the two worm and worm gear reduction boxes 2 are respectively installed and connected with the input end of the driving crank 9. The output end of the driving crank 9 is connected and fixed with the connecting rod frame 5 through the rotating shaft assembly 8. Two workpiece brackets 6 are installed on the connecting rod frame 5. Industrial felt gaskets 7 are laid on both of the two workpiece brackets 6. The crank in-place detection switch 10 is installed on the left and right sides of the box body of the worm and worm gear reduction box 2. An adjustment block assembly 11 is installed on each of the left and right sides of the base 1.

[0019] Wherein, the two worm and worm gear reduction boxes 2 are connected by the adjustable coupling 12. By adjusting the connection angle of the adjustable coupling 12, the two driving cranks 9 can be ensured to be parallel.

[0020] Wherein, the positioning pin 13 is arranged on the surface of the adjustable coupling 12. After the adjustable coupling 12 is adjusted, the positioning pin 13 is installed to ensure the positioning accuracy.

[0021] Finally, several points should be noted: First, in the description of the present application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, which can be mechanical connection or electrical connection, and can also be the communication inside two components. It can be directly connected. "Up", "down", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the object being described changes, the relative position relationship may change;

[0022] Second: In the attached drawings of the disclosed embodiment of the present utility model, only the structures related to the disclosed embodiment are involved. Other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0023] Finally: The above description is only the preferred embodiment of the present utility model and is not used to limit the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A station conversion mechanism for a continuous production line of large workpieces, characterized in that, It consists of a servo motor (4), a speed reducer (3), a worm and worm gear reduction box (2), an adjustable coupling (12), a positioning pin (13), a driving crank (9), a rotating shaft assembly (8), a connecting rod frame (5), a workpiece bracket (6), an adjustment block assembly (11), a crank in-place detection switch (10), a base (1) and an industrial felt gasket (7). On both sides of the base (1), a worm and worm gear reduction box (2) is installed. A servo motor (4) and a speed reducer (3) are installed in one of the worm and worm gear reduction boxes (2). The two worm and worm gear reduction boxes (2) are connected by transmission through an adjustable coupling (12) in the middle. The worm output shafts of the two worm and worm gear reduction boxes (2) are respectively installed and connected to the input end of the driving crank (9). The output end of the driving crank (9) is connected and fixed to the connecting rod frame (5) through the rotating shaft assembly (8). Two workpiece brackets (6) are installed on the connecting rod frame (5). Industrial felt gaskets (7) are laid on both of the two workpiece brackets (6). The crank in-place detection switch (10) is installed on the left and right sides of the box body of the worm and worm gear reduction box (2). An adjustment block assembly (11) is installed on the left and right sides of the base (1).

2. The station conversion mechanism for a large workpiece continuous production line according to claim 1, characterized in that, The two worm and worm gear reduction boxes (2) are connected by an adjustable coupling (12).

3. The station conversion mechanism for a continuous production line of large workpieces according to claim 1, characterized in that, The positioning pin (13) is arranged on the surface of the adjustable coupling (12).

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