Automatic overturning workbench

Abstract

The utility model discloses an automatic overturning workbench which comprises a fixed support, an overturning support and an overturning driving device. The turnover device is characterized in that the turnover bracket is rotationally connected with the fixed bracket through a turnover arm; the turnover driving device comprises a servo motor, and an output shaft of the servo motor is sequentially connected with a gearbox and an electric cylinder; a base of the electric cylinder is connected with the fixing support through a hinge structure, and the tail end of a telescopic rod of the electric cylinder is hinged to the overturning support. According to the structure, through cooperation of the servo motor, the gear box and the electric cylinder, the torque requirement of heavy-load overturning is met; output shafts on the two sides of the servo motor are synchronously driven through symmetrically-arranged gear boxes and electric cylinders, and it is ensured that the overturning arms on the two sides are stressed in a balanced mode; and the overturning angle precision is ensured by combining a double-side positioning mechanism, a limiting mechanism, a first sensor and a second sensor.

Description

Technical Field

[0001] This utility model relates to the field of automated assembly equipment technology, and in particular to an automatic flipping worktable. Background Technology

[0002] In mechanical assembly or maintenance operations, it is often necessary to rotate the worktable at multiple angles to facilitate the completion of different processes. Traditional rotating worktables typically use a single-sided hydraulic cylinder, pneumatic cylinder, or direct motor drive to achieve rotation. However, in practical applications, this method suffers from the following technical drawbacks: 1. Under heavy loads, the single-sided drive structure is prone to uneven force distribution, leading to off-center loading or even twisting and deformation of the rotating support. Furthermore, heavy loads require matching with oversized actuators, resulting in high energy consumption. 2. During the rotation process, the hinge point between the drive mechanism (such as an electric cylinder) and the rotating support undergoes dynamic angle changes, and rigid connections are prone to component wear. 3. Low positioning accuracy and insufficient stability are also issues. Therefore, there is an urgent need for an automatic rotating worktable that integrates high torque and high-precision positioning. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides an automatic flipping worktable.

[0004] The technical solution of this utility model is as follows: it includes a fixed bracket, a flip bracket, and a flip driving device; characterized in that: the flip bracket is rotatably connected to the fixed bracket through a flip arm; the flip driving device includes a servo motor, the output shaft of which is sequentially connected to a gearbox and an electric cylinder; the base of the electric cylinder is connected to the fixed bracket through a hinge structure, and the end of the telescopic rod of the electric cylinder is hinged to the flip bracket.

[0005] Preferably, the servo motor has a dual-output structure, with its two output shafts connected to the gearbox and the electric cylinder respectively, forming a symmetrical distribution.

[0006] Preferably, a drive shaft is provided between the servo motor and the gearbox. One end of the drive shaft is connected to the output shaft of the servo motor through a rigid coupling, and the other end is connected to the input shaft of the gearbox through a universal coupling.

[0007] Preferably, the base of the electric cylinder integrates a synchronous belt drive mechanism, and the rotational motion of the gearbox output shaft is converted into linear drive of the electric cylinder through the synchronous belt drive mechanism.

[0008] Preferably, it also includes a positioning mechanism, comprising:

[0009] Positioning cylinder;

[0010] Positioning pin; slidably set and connected to the positioning cylinder drive;

[0011] The tilting arm is provided with a positioning hole that mates with the positioning pin;

[0012] When the flip bracket is rotated to the set assembly angle, the positioning pin is inserted into the positioning hole under the drive of the positioning cylinder to achieve positioning.

[0013] Preferably, a first sensor is provided on the side of the movement path of the positioning pin. When the positioning pin is fully inserted into the positioning hole, the first sensor outputs a positioning pin positioning signal.

[0014] Preferably, the positioning mechanism is provided in two sets, with each set corresponding to one of the two flipping arms, and the positioning cylinders of the two sets of positioning mechanisms are synchronously controlled to achieve precise positioning of the flipping bracket on both sides.

[0015] Preferably, it also includes a limiting mechanism, including:

[0016] Limiting station;

[0017] The flipping arm is provided with a limiting inclined surface that cooperates with the limiting platform;

[0018] When the flip bracket rotates to the set assembly angle, the limiting platform abuts against the limiting inclined surface on the flip arm to achieve mechanical limiting of the flip bracket.

[0019] Preferably, the fixed bracket is also provided with a second sensor, which is configured in conjunction with the trigger on the flip arm. When the flip bracket is rotated to the set assembly angle, the second sensor outputs a signal that the flip bracket is in place.

[0020] Preferably, it also includes a fall protection mechanism, including:

[0021] Support components;

[0022] Locking component; disposed on the support component;

[0023] The flip-up bracket is provided with a receiving part that cooperates with the locking assembly;

[0024] When the flip bracket is rotated to the set assembly angle, the locking component and the receiving part form a locking engagement.

[0025] The beneficial technical effects of this utility model are as follows: the servo motor outputs high torque after being reduced by the gearbox, and then converts it into linear motion of the electric cylinder through the synchronous belt transmission mechanism to solve the torque requirements of large load flipping; the output shafts on both sides of the servo motor are synchronously driven by the symmetrically arranged gearbox and electric cylinder to ensure that the forces on both sides of the flipping arm are balanced; the combination of the double-sided positioning mechanism, the limit mechanism and the first and second sensors ensures the accuracy of the flipping angle. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model after flipping.

[0027] Figure 2 This is a schematic diagram of the overall structure of this utility model being flipped and reset.

[0028] Figure 3 This is a schematic diagram of the specific structure of the flipping drive device of this utility model;

[0029] Figure 4 This is a schematic diagram of the specific structure of the flip-up bracket of this utility model;

[0030] Figure 5 This is a schematic diagram of the installation position of the positioning mechanism of this utility model;

[0031] Figure 6 This is a utility model Figure 5 Schematic diagram of a partial structure;

[0032] Figure 7 This is a utility model Figure 1 A schematic diagram of the specific structure of the Chinese fall protection mechanism;

[0033] The components include: 1. Fixed bracket; 11. Support base; 2. Tilting bracket; 21. Tilting arm; 22. Hinge ear; 3. Tilting drive device; 31. Servo motor; 32. Drive shaft; 33. Gearbox; 34. Electric cylinder; 35. Rigid coupling; 36. Universal coupling; 4. Positioning mechanism; 41. Mounting bracket; 42. Positioning cylinder; 43. Positioning pin; 44. Positioning hole; 5. Limiting mechanism; 51. Limiting platform; 52. Limiting inclined surface; 6. First sensor; 7. Second sensor; 8. Fall protection mechanism; 81. Support assembly; 82. Locking assembly; 83. Receiving part; 9. Control system. Detailed Implementation

[0034] In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0035] like Figure 1 and Figure 2 As shown, the automatic flipping workbench of this utility model includes a fixed support 1, a flipping support 2 located above the fixed support 1 and rotatably connected to the fixed support 1, and a flipping drive device 3 for driving the flipping support 2 to achieve flipping. A product placement workbench is provided in the middle of the flipping support 2.

[0036] Specifically, such as Figure 3As shown, the tilting drive device 3 includes a servo motor 31. The servo motor 31 has a transmission shaft 32, a gearbox 33, and an electric cylinder 34 arranged sequentially along the power transmission direction on both sides of its output shaft. One end of the transmission shaft 32 is fixedly connected to the output shaft of the servo motor 31 via a rigid coupling 35, and the other end is connected to the input shaft of the gearbox 33 via a universal coupling 36. The gearbox 33 is fixedly mounted on the base of the electric cylinder 34 and is used to reduce the output speed of the servo motor 31 and increase its torque. The base of the electric cylinder 34 is rotatably connected to the fixed bracket 1 via a hinge structure. A synchronous belt drive mechanism is integrated within the base. The synchronous belt drive mechanism includes a driving pulley, a driven pulley, and a synchronous belt. The driving pulley is fixed to the output shaft of the gearbox 33, and the driven pulley is connected to the drive input end of the electric cylinder 34. The rotational movement of the output shaft of the gearbox 33 drives the telescopic rod of the electric cylinder 34 to extend and retract.

[0037] The flipping bracket 2 is fixedly equipped with flipping arms 21 on both sides, such as Figure 4 The flipping arm 21 is connected to the fixed bracket 1 via a rotating joint, forming the flipping axis of the flipping bracket 2. The flipping bracket 2 has hinge ears 22 on both sides, and the hinge seat at the end of the telescopic rod is connected to the hinge ears 22. When the telescopic rod of the electric cylinder 34 retracts, the pulling force F acts on the hinge ears 22, generating a torque (M = F × L, where L is the vertical distance from the hinge ear 22 to the axis of the flipping arm 21) around the axis of the flipping arm 21, thereby driving the flipping bracket 2 to flip.

[0038] The rotating arms 21 on both sides are located at the two corners of the fixed bracket 1, and the other two corners of the fixed bracket 1 are respectively provided with support seats 11. The two sets of support seats 11 are used to provide support when the flipping bracket 2 is in a horizontal position.

[0039] Bearing seats are provided on both sides of the servo motor 31, and the transmission shafts 32 on both sides are rotatably connected to the bearing seats through bearings.

[0040] The universal coupling 36 is used to compensate for installation deviations and adapt to angular changes during the rotation of the electric cylinder 34.

[0041] After the product is placed on the workbench, the flip bracket 2 is flipped to the set assembly angle under the drive of the servo motor 31, so that the operator can perform the assembly.

[0042] In this structure, the servo motor 31 outputs high torque after being reduced in speed by the gearbox 33, and then converts it into linear motion of the electric cylinder 34 through the synchronous belt transmission mechanism, which better solves the torque requirements of large load flipping.

[0043] Furthermore, to prevent positional deviations of the flip bracket 2 during assembly and thus affect product quality, the fixed bracket 1 is equipped with a positioning mechanism 4, such as... Figure 5 and Figure 6The positioning mechanism 4 includes a mounting bracket 41, a positioning cylinder 42, and a positioning pin 43. The positioning pin 43 is slidably mounted on the mounting bracket 41 via a linear bearing, and the positioning pin 43 is connected to the piston rod of the positioning cylinder 42. It can move linearly under the drive of the positioning cylinder 42. The flipping arm 21 is provided with a positioning hole 44 corresponding to the positioning pin 43. When the flipping bracket 2 rotates to the set assembly angle, the positioning cylinder 42 drives the positioning pin 43 to insert into the positioning hole 44, thereby achieving precise positioning of the flipping bracket 2 and preventing the flipping bracket 2 from shifting.

[0044] The fixed bracket 1 is provided with two sets of symmetrically arranged positioning mechanisms 4, which correspond to the two sides of the flipping arm 21 respectively. The positioning cylinders 42 of the two sets of positioning mechanisms 4 are synchronously controlled to ensure that the positioning pins 43 on both sides are synchronously inserted into the corresponding positioning holes 44, so as to achieve precise positioning of the flipping bracket 2 on both sides.

[0045] Furthermore, the fixed bracket 1 is also provided with a limiting mechanism 5, which includes a limiting platform 51 and a limiting inclined surface 52 that cooperates with the limiting platform 51 on the flipping arm 21. When the flipping bracket 2 rotates to the set assembly angle, the limiting platform 51 abuts against the limiting inclined surface 52 on the flipping arm 21 to achieve mechanical limiting of the flipping bracket 2.

[0046] Furthermore, the limiting mechanism 5 is provided in two sets, corresponding to the flipping arms 21 on both sides respectively, to ensure that the flipping bracket 2 is limited synchronously on both sides, thereby further improving the positioning accuracy and stability.

[0047] The symmetrically arranged positioning mechanism 4 and limiting mechanism 5 eliminate the problem of eccentric loading caused by unilateral force.

[0048] Furthermore, the mounting bracket 41 is also equipped with a first sensor 6, which cooperates with the positioning mechanism 4 to detect the positioning pin 43's position. When the positioning pin 43 is fully inserted into the positioning hole 44, the first sensor 6 outputs a positioning signal. The first sensor 6 is mounted beside the movement path of the positioning pin 43 via a bracket. There are two sets of the first sensor 6, corresponding to the positioning mechanisms 4 on both sides respectively. The signal output terminals of the two sets of first sensors 6 are connected to the control system 9 to achieve synchronous detection of dual-side positioning.

[0049] Furthermore, the mounting bracket 41 is also provided with a second sensor 7, which is configured in conjunction with a trigger fixed on the flip arm 21. When the flip bracket 2 rotates to the set assembly angle, the second sensor 7 outputs a signal to the control system that the flip bracket 2 is in position.

[0050] The first sensor 6 and the second sensor 7 can be a proximity switch, a photoelectric sensor, or a micro switch.

[0051] Multiple positioning is achieved through the mechanical limiting mechanism 5, the positioning pin, and the detection of the first and second sensors, ensuring that the flipping angle of the flipping bracket has a smaller error compared with the set assembly angle.

[0052] Furthermore, it also includes a fall protection mechanism 8, which is disposed on one side of the flip bracket 2 and includes a support component 81 and a locking component 82 disposed on the support component 81. The flip bracket 2 is provided with a receiving component 83 that cooperates with the locking component 82. When the flip bracket 2 is rotated to a set angle, the locking component 82 and the receiving component 83 form a locking engagement to prevent the flip bracket 2 from falling accidentally during assembly or maintenance.

[0053] In this embodiment, the locking component 82 is a clamp, which forms a detachable snap-fit ​​engagement with the fixing pin fixed on the flip bracket 2.

[0054] Furthermore, the clamp has an auxiliary pin on its open side, which is used to limit the radial displacement of the clamp and ensure that the clamp is in a stable snap-fit ​​state.

[0055] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An automatic flipping worktable, comprising a fixed support (1), a flipping support (2), and a flipping drive device (3); characterized in that: The flipping bracket (2) is rotatably connected to the fixed bracket (1) via the flipping arm (21); the flipping drive device (3) includes a servo motor (31), whose output shaft is connected in sequence to a gearbox (33) and an electric cylinder (34); the base of the electric cylinder (34) is connected to the fixed bracket (1) via a hinge structure, and the end of the telescopic rod of the electric cylinder (34) is hinged to the flipping bracket (2).

2. The automatic flipping worktable according to claim 1, characterized in that: The servo motor (31) has a dual-output structure, with its two output shafts connected to the gearbox (33) and the electric cylinder (34) respectively, forming a symmetrical distribution.

3. An automatic flipping worktable according to claim 2, characterized in that: A transmission shaft (32) is provided between the servo motor (31) and the gearbox (33). One end of the transmission shaft (32) is connected to the output shaft of the servo motor (31) through a rigid coupling (35), and the other end is connected to the input shaft of the gearbox (33) through a universal coupling (36).

4. An automatic flipping worktable according to claim 1, characterized in that: The base of the electric cylinder (34) is integrated with a synchronous belt drive mechanism, and the rotational motion of the output shaft of the gearbox (33) is converted into the linear drive of the electric cylinder (34) through the synchronous belt drive mechanism.

5. An automatic flipping worktable according to claim 1, characterized in that: It also includes a positioning mechanism (4), including: Positioning cylinder (42); Positioning pin (43); slidably set and driven by positioning cylinder (42); The flip arm (21) is provided with a positioning hole that cooperates with the positioning pin (43); When the flip bracket (2) is rotated to the set assembly angle, the positioning pin (43) is inserted into the positioning hole under the drive of the positioning cylinder (42) to achieve positioning.

6. An automatic flipping worktable according to claim 5, characterized in that: A first sensor (6) is provided on the side of the movement path of the positioning pin (43). When the positioning pin (43) is fully inserted into the positioning hole, the first sensor (6) outputs the positioning pin (43) positioning signal.

7. An automatic flipping worktable according to claim 5, characterized in that: The positioning mechanism (4) is provided in two sets, and the two sets of positioning mechanisms (4) correspond to the flipping arms (21) on both sides respectively. The positioning cylinders (42) of the two sets of positioning mechanisms (4) are synchronously controlled to achieve precise positioning of the flipping bracket (2) on both sides.

8. An automatic flipping worktable according to claim 1, characterized in that: It also includes a limiting mechanism (5), which includes: Limiting station (51); The flipping arm (21) is provided with a limiting inclined surface (52) that cooperates with the limiting platform (51). When the flip bracket (2) is rotated to the set assembly angle, the limiting platform (51) abuts against the limiting inclined surface (52) on the flip arm (21) to achieve mechanical limiting of the flip bracket (2).

9. An automatic flipping worktable according to claim 1, characterized in that: The fixed bracket (1) is also provided with a second sensor (7). The second sensor (7) is configured in conjunction with the trigger on the flip arm (21). When the flip bracket (2) is rotated to the set assembly angle, the second sensor (7) outputs a signal that the flip bracket (2) is in place.

10. An automatic flipping worktable according to claim 1, characterized in that: It also includes fall protection mechanisms (8), including: Support components (81); Locking component (82); disposed on the support component (81); The flip bracket (2) is provided with a receiving part (83) that cooperates with the locking component (82). When the flip bracket (2) is rotated to the set assembly angle, the locking component (82) and the receiving component (83) form a locking engagement.

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