Automatic positioning workbench device driven by motor

Abstract

The invention relates to the field of positioning workbenches, and discloses a motor-driven automatic positioning workbench device, which comprises a mounting seat, and a swing mechanism, a positioning locking mechanism and a tensioning mechanism are arranged on the mounting seat; the swing mechanism comprises a workbench, a position detection sensor, a first position detection plate, a mounting frame, a servo motor and a driving gear. The workbench is rotationally installed on the installation base, the position detection sensor is fixedly installed on the installation base, the first position detection plate is fixedly arranged on the workbench, the installation frame is fixedly installed on the installation base, the servo motor is fixedly installed on the installation frame, and the output end of the servo motor is fixedly connected with the driving gear. A meshing gear is arranged on the outer circle of the workbench. The device has the following advantages and effects that the positioning precision and the switching efficiency are improved through the swing mechanism, bidirectional stable locking is achieved by means of the positioning locking mechanism, and the stability and the safety are enhanced by means of the tensioning mechanism.

Description

Technical Field

[0001] This invention relates to the field of positioning worktable technology, and in particular to a motor-driven automatic positioning worktable device. Background Technology

[0002] In fields such as machining, electronic assembly, and precision testing, positioning worktables are core equipment for achieving precise workpiece operation. Their positioning accuracy and operational efficiency directly affect production quality and capacity. Traditional positioning worktables mostly adopt manual adjustment or semi-automatic drive methods, which have many limitations: manual adjustment relies on the operator's experience, resulting in large positioning accuracy errors and making it difficult to meet the needs of high-precision machining; moreover, switching working positions requires manual unlocking, rotation, and locking, which is cumbersome and time-consuming, severely restricting the cycle efficiency of automated production lines.

[0003] Although some semi-automatic positioning worktables are driven by cylinders or ordinary motors, the rotation angle of the worktable is difficult to control precisely, which can easily lead to overshoot or positioning deviation. At the same time, their locking mechanisms are mostly fixed in a single position, which cannot meet the stability requirements of both working and non-working states. When bearing heavy objects or subjected to external impact, displacement and loosening are likely to occur, resulting in processing errors or safety hazards. Therefore, it is necessary to design a motor-driven automatic positioning worktable device to solve the above problems.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of the invention and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to provide a motor-driven automatic positioning worktable device to solve the above-mentioned problems.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a motor-driven automatic positioning worktable device, comprising:

[0007] The mounting base is equipped with a swing mechanism, a positioning and locking mechanism and a tensioning mechanism.

[0008] The swing mechanism includes a worktable, a position detection sensor, a position detection plate, a mounting bracket, a servo motor, and a drive gear;

[0009] The worktable is rotatably mounted on the mounting base, the position detection sensor is fixedly mounted on the mounting base, the position detection plate is fixedly mounted on the worktable, the mounting bracket is fixedly mounted on the mounting base, the servo motor is fixedly mounted on the mounting bracket, the output end of the servo motor is fixedly connected to the drive gear, and a meshing gear is provided on the outer circle of the worktable, and the drive gear meshes with the meshing gear.

[0010] A further configuration of the present invention is as follows: the positioning and locking mechanism includes an arc-shaped limiting plate, a first cylinder, a second position detection plate, a guide marker rod, a thin shaft, and a positioning pin. The arc-shaped limiting plate is fixedly installed on the mounting base, the first cylinder is fixedly installed on the worktable, the first cylinder is provided with a cylinder piston, the cylinder piston is fixedly connected to the second position detection plate and the thin shaft, and the bottom of the thin shaft is fixedly connected to the positioning pin.

[0011] A further configuration of the present invention is as follows: the tensioning mechanism includes a second cylinder, a first pull plate, a connecting piece, a second pull plate, a limit switch, and a limit detection plate. The second cylinder is fixedly mounted on the mounting base, and the output end of the second cylinder is fixedly connected to the first pull plate. The connecting piece is fixedly mounted between the workbench and the second pull plate. The first pull plate and the second pull plate are engaged. The limit switch is fixedly mounted on the mounting base, and the limit detection plate is connected to the second pull plate.

[0012] By adopting the above technical solutions, the stability of the workbench can be improved.

[0013] A further feature of the present invention is that the top of the arc-shaped limiting plate is provided with an arc-shaped long groove and a circular groove, and the bottom of the arc-shaped limiting plate is provided with a recessed groove.

[0014] A further feature of the present invention is that a circular hole is provided on the top of the workbench, and a cylinder is installed in the circular hole.

[0015] By adopting the above technical solution, the position of cylinder one is defined.

[0016] A further feature of the present invention is that the position detection plate is slidably sleeved on the outside of the guide marker rod.

[0017] By adopting the above technical solution, the stability of the position detection plate during vertical movement is improved.

[0018] A further feature of the present invention is that three marking grooves are provided on the outer side of the guide marker rod.

[0019] A further feature of the present invention is that a transparent viewing window is fixedly disposed on the mounting base.

[0020] The beneficial effects of this invention are:

[0021] 1. This invention, through a swing mechanism, enables precise control of the worktable rotation angle by using a servo motor for precise transmission via drive gears and meshing gears, combined with real-time monitoring of the position detection plate by a position detection sensor. The positioning accuracy is far superior to that of traditional manual adjustment methods, meeting the requirements of high-precision processing. At the same time, no manual intervention is required in the unlocking and rotation process, which greatly shortens the position switching time and improves the cycle efficiency of automated production lines.

[0022] 2. This invention, through the setting of a positioning and locking mechanism and a tensioning mechanism, has a countersunk groove and a circular groove on the arc-shaped limiting plate corresponding to the working state and non-working state of the worktable, respectively. Cylinder 1 drives the positioning pin to engage with the corresponding groove, achieving bidirectional precise locking. The sliding fit of the thin shaft in the arc-shaped long groove ensures the smooth swinging process of the worktable, avoids positioning deviation, effectively prevents displacement and loosening under load, and reduces processing errors and safety hazards. Cylinder 2 drives pull plate 1 and pull plate 2 to engage, forming double reinforcement on the basis of positioning and locking, further improving the impact resistance of the worktable in the working state. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of a motor-driven automatic positioning worktable device proposed in this invention.

[0025] Figure 2 This is a schematic diagram of the swing mechanism and tensioning mechanism in a motor-driven automatic positioning worktable device proposed in this invention.

[0026] Figure 3 This is a schematic diagram of the swing mechanism in a motor-driven automatic positioning worktable device proposed in this invention.

[0027] Figure 4 This is a schematic diagram of the positioning and locking mechanism in a motor-driven automatic positioning worktable device proposed in this invention. Figure 1 .

[0028] Figure 5 This is a schematic diagram of the positioning and locking mechanism in a motor-driven automatic positioning worktable device proposed in this invention. Figure 2 .

[0029] Figure 6 This is a cross-sectional view of the positioning and locking mechanism in a motor-driven automatic positioning workbench device proposed in this invention.

[0030] Figure 7 This is a schematic diagram of the tensioning mechanism in a motor-driven automatic positioning worktable device proposed in this invention.

[0031] In the diagram, 1 represents the mounting base;

[0032] 2. Swinging mechanism; 21. Worktable; 22. Position detection sensor; 23. Position detection board one; 24. Mounting bracket; 25. Servo motor; 26. Drive gear;

[0033] 3. Positioning and locking mechanism; 31. Arc-shaped limiting plate; 32. Sinking platform groove; 33. Arc-shaped long groove; 34. Circular groove; 35. Cylinder 1; 36. Position detection plate 2; 37. Guide marker rod; 38. Thin shaft; 39. Positioning pin;

[0034] 4. Tensioning mechanism; 41. Cylinder II; 42. Pull plate I; 43. Connecting piece; 44. Pull plate II; 45. Limit switch; 46. Limit detection plate. Detailed Implementation

[0035] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection", and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this invention can be understood through the specific circumstances.

[0036] The technical solution of the present invention will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0037] See Figures 1-7 The present invention provides a motor-driven automatic positioning worktable device, comprising:

[0038] Mounting base 1, which is equipped with a swing mechanism 2, a positioning and locking mechanism 3 and a tensioning mechanism 4;

[0039] The swing mechanism 2 includes a worktable 21, a position detection sensor 22, a position detection plate 23, a mounting bracket 24, a servo motor 25, and a drive gear 26;

[0040] The worktable 21 is rotatably mounted on the mounting base 1, the position detection sensor 22 is fixedly mounted on the mounting base 1, the position detection plate 23 is fixedly mounted on the worktable 21, the mounting bracket 24 is fixedly mounted on the mounting base 1, the servo motor 25 is fixedly mounted on the mounting bracket 24, the output end of the servo motor 25 is fixedly connected to the drive gear 26, and a meshing gear is provided on the outer circle of the worktable 21, and the drive gear 26 meshes with the meshing gear.

[0041] With the above structure, starting the servo motor 25 causes the drive gear 26 to rotate, which in turn causes the meshing gear to rotate. The meshing gear drives the worktable 21 to rotate. By controlling the forward and reverse rotation of the output of the servo motor 25, the worktable 21 can be oscillated in two directions. Figure 1 The current position is the working position. When the worktable 21 is rotated to its limit position, it is the non-working position.

[0042] Specifically, the positioning and locking mechanism 3 includes an arc-shaped limiting plate 31, a cylinder 35, a position detection plate 36, a guide marker rod 37, a thin shaft 38, and a positioning pin 39. The arc-shaped limiting plate 31 is fixedly installed on the mounting base 1, the cylinder 35 is fixedly installed on the worktable 21, and a cylinder piston is provided on the cylinder 35. The cylinder piston is fixedly connected to the position detection plate 36 and the thin shaft 38, and the bottom of the thin shaft 38 is fixedly connected to the positioning pin 39.

[0043] With the above structure, the worktable 21 is in a position Figure 1 At the working position, cylinder 35 is activated, causing the thin shaft 38 to move the positioning pin 39 upward, which in turn allows the positioning pin 39 to engage in the recessed groove 32, thus positioning the worktable 21. A tensioning mechanism 4 is also provided here to improve the stability of the worktable 21 after positioning. During the swinging process of the worktable 21, the thin shaft 38 on the positioning pin 39 moves in the arc-shaped groove 33. When it reaches the position of the circular groove 34, which is the non-working position, cylinder 35 is activated, causing the thin shaft 38 to move the positioning pin 39 upward, which in turn allows the positioning pin 39 to engage in the circular groove 34, thus positioning the worktable 21. No auxiliary positioning is performed at this position.

[0044] Specifically, the tensioning mechanism 4 includes a second cylinder 41, a first pull plate 42, a connecting piece 43, a second pull plate 44, a limit switch 45, and a limit detection plate 46. The second cylinder 41 is fixedly installed on the mounting base 1, and the output end of the second cylinder 41 is fixedly connected to the first pull plate 42. The connecting piece 43 is fixedly installed between the workbench 21 and the second pull plate 44. The first pull plate 42 and the second pull plate 44 are engaged. The limit switch 45 is fixedly installed on the mounting base 1, and the limit detection plate 46 is connected to the second pull plate 44.

[0045] With the above structure, the worktable 21 is in a position Figure 1 When the worktable is in the working position, the second cylinder 41 is activated, which allows the first pull plate 42 to engage with the second pull plate 44, limiting the second pull plate 44 and further limiting the worktable 21, ensuring the stability of the worktable 21 in the working position.

[0046] Specifically, the top of the arc-shaped limiting plate 31 is provided with an arc-shaped long groove 33 and a round groove 34, the bottom of the arc-shaped limiting plate 31 is provided with a recessed groove 32, the top of the worktable 21 is provided with a round hole, and the cylinder 35 is installed at the round hole. It should be noted that the thin shaft passes through the round hole and through the arc-shaped long groove 33.

[0047] Specifically, the position detection plate 2 36 is slidably sleeved on the outside of the guide marker rod 37. The guide marker rod 37 has three marking grooves on its outside. It should be noted that the position detection plate 2 36 can be guided. The three marking grooves can be used to manually distinguish the position of the cylinder piston, which is more conducive to troubleshooting abnormal positioning faults.

[0048] Specifically, a transparent viewing window is fixedly installed on the mounting base 1, which is to facilitate observation of the internal situation of the mounting base 1.

[0049] Working principle:

[0050] S1: Start the servo motor 25 on the mounting bracket 24. The output of the servo motor 25 drives the drive gear 26 to rotate. Since the drive gear 26 meshes with the meshing gear on the outer circle of the worktable 21, the worktable 21 rotates around the mounting base 1 as the drive gear 26 rotates. By controlling the forward and reverse rotation of the servo motor 25, the worktable 21 can swing bidirectionally between the working state position and the non-working state position. During the rotation of the worktable 21, the position detection plate 23 fixed on the worktable 21 rotates synchronously. The position detection sensor 22 on the mounting base 1 detects the position change of the position detection plate 23 and provides real-time feedback on the rotation angle and current position of the worktable 21, ensuring that the servo motor 25 can accurately control the worktable 21 to stay at the target position, providing a basis for subsequent positioning and locking.

[0051] S2: When the worktable 21 rotates to... Figure 1 When the worktable is in the working position shown, cylinder 35 is activated. The cylinder piston drives the thin shaft 38 and the positioning pin 39 to move upward. The positioning pin 39 is engaged in the recessed groove 32 at the bottom of the arc-shaped limiting plate 31. The rotation of the worktable 21 is restricted by mechanical clamping, thus completing the positioning of the working position. At this time, the position detection plate 36 slides along the guide marker rod 37. The marking groove of the guide marker rod 37 can assist in manually judging the position of the cylinder piston, which is convenient for troubleshooting. When the worktable 21 swings to the non-working position, the thin shaft 38 slides in the arc-shaped long groove 33 of the arc-shaped limiting plate 31 and finally aligns with the circular groove 34. Cylinder 35 is activated, and the positioning pin 39 moves upward and engages in the circular groove 34, realizing the positioning of the non-working position. At this time, no additional reinforcement is required, which meets the stability requirements of the idle state.

[0052] S3: When the workbench 21 is in the working position, cylinder 2 41 is activated. The output end of cylinder 2 41 pushes pull plate 1 42 to move, so that pull plate 1 42 is engaged with pull plate 2 44, which is fixed to the workbench 21 by connector 43. The engagement structure of the two further restricts the rotation of the workbench 21. Together with the positioning and locking mechanism, a double fixation is formed to ensure that the workbench 21 does not shift when carrying out operations. At the same time, the limit detection plate 46 rotates with the workbench 21 and works with the limit switch 45 on the mounting base 1 to monitor the working status of the tensioning mechanism in real time. If pull plate 1 42 and pull plate 2 44 are not fully engaged, the limit switch 45 will trigger an alarm to prompt the operator to make adjustments and ensure operational safety.

[0053] The above provides a detailed description of a motor-driven automatic positioning worktable device provided by the present invention. Specific embodiments have been used to illustrate the principles and implementation methods of the invention. These embodiments are merely illustrative and are intended to aid in understanding the method and core concepts of the invention. It should be noted that those skilled in the art can make various improvements and modifications to the invention without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A motor-driven automatic positioning worktable device, characterized in that, include: Mounting base (1), wherein the mounting base (1) is provided with a swing mechanism (2), a positioning and locking mechanism (3) and a tensioning mechanism (4); The swing mechanism (2) includes a worktable (21), a position detection sensor (22), a position detection plate (23), a mounting bracket (24), a servo motor (25), and a drive gear (26); The workbench (21) is rotatably mounted on the mounting base (1), the position detection sensor (22) is fixedly mounted on the mounting base (1), the position detection plate (23) is fixedly mounted on the workbench (21), the mounting bracket (24) is fixedly mounted on the mounting base (1), the servo motor (25) is fixedly mounted on the mounting bracket (24), the output end of the servo motor (25) is fixedly connected to the drive gear (26), a meshing gear is provided on the outer circle of the workbench (21), and the drive gear (26) meshes with the meshing gear.

2. The motor-driven automatic positioning worktable device according to claim 1, characterized in that, The positioning and locking mechanism (3) includes an arc-shaped limiting plate (31), a cylinder (35), a position detection plate (36), a guide marker rod (37), a thin shaft (38), and a positioning pin (39). The arc-shaped limiting plate (31) is fixedly installed on the mounting base (1). The cylinder (35) is fixedly installed on the worktable (21). A cylinder piston is provided on the cylinder (35). The cylinder piston is fixedly connected to the position detection plate (36) and the thin shaft (38). The bottom of the thin shaft (38) is fixedly connected to the positioning pin (39).

3. The motor-driven automatic positioning worktable device according to claim 1, characterized in that, The tensioning mechanism (4) includes a second cylinder (41), a first pull plate (42), a connecting piece (43), a second pull plate (44), a limit switch (45), and a limit detection plate (46). The second cylinder (41) is fixedly installed on the mounting base (1). The output end of the second cylinder (41) is fixedly connected to the first pull plate (42). The connecting piece (43) is fixedly installed between the workbench (21) and the second pull plate (44). The first pull plate (42) and the second pull plate (44) are engaged. The limit switch (45) is fixedly installed on the mounting base (1). The limit detection plate (46) is connected to the second pull plate (44).

4. The motor-driven automatic positioning worktable device according to claim 2, characterized in that, The top of the arc-shaped limiting plate (31) is provided with an arc-shaped long groove (33) and a circular groove (34), and the bottom of the arc-shaped limiting plate (31) is provided with a recessed groove (32).

5. The motor-driven automatic positioning worktable device according to claim 2, characterized in that, The workbench (21) has a round hole at the top, and cylinder 1 (35) is installed in the round hole.

6. The motor-driven automatic positioning worktable device according to claim 2, characterized in that, The position detection plate 2 (36) is slidably sleeved on the outside of the guide marker rod (37).

7. The motor-driven automatic positioning worktable device according to claim 2, characterized in that, The guide sign bar (37) has three sign slots on its outer side.

8. The motor-driven automatic positioning worktable device according to claim 1, characterized in that, A transparent viewing window is fixedly provided on the mounting base (1).

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