Limiting structure of industrial rotary table

Abstract

The utility model discloses a kind of limit structure of industrial rotary table, including center shaft seat and small bottom plate, the upper surface of center shaft seat is fixedly connected with rotary table frame, the upper surface of rotary table frame is fixedly connected with table panel, the outer ring wall of rotary table frame is fixedly connected with steel gear ring. By outside setting steel gear ring, the outside of steel gear ring is driven by multiple large torque servo motors, the rotation link of rotary table is completed, simultaneously, driven gear is arranged outside steel gear ring, driven gear is driven by adhering steel gear ring, when industrial rotary table stops, starting positioning structure is lifted, simultaneously, universal coupling is arranged in the extension of one end of gear seat, the other end of universal coupling is connected with driven shaft, bearing seat auxiliary rotation is arranged at the both ends of driven shaft, ensure that it is more stable when driven rotation, still be provided with arc block of hydraulic drive, driven arc block and driven shaft adhere, brake limit for it, cooperate with positioning structure to realize better limit positioning effect.

Description

Technical Field

[0001] This utility model relates to the field of industrial rotary table technology, specifically to a limiting structure for an industrial rotary table. Background Technology

[0002] An industrial rotary table is an electromechanical device used for precisely controlling the rotation angle of an object, widely used in automated production lines, precision machining, testing, and assembly. Its core function is to achieve highly repeatable rotary motion driven by a motor. It is used to control the rotational movement of objects within a plane and is widely applied in automated production, testing, and assembly. The limiting function is particularly crucial when the industrial rotary table stops. It not only ensures the rotary table remains at a preset position but also prevents overtravel, collisions, or equipment damage caused by inertia, control errors, or external interference. When the rotary table stops rotating, it may continue to move slightly due to inertia. Without limiting protection, this can lead to slight overtravel. Furthermore, without effective limiting after stopping, the rotary table may continue to rotate during operation, causing collisions with mechanical structures or workpieces, and even impacting surrounding equipment or operators. Therefore, we propose a limiting structure for industrial rotary tables. Utility Model Content

[0003] The purpose of this invention is to provide a limiting structure for an industrial rotary table to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a limiting structure for an industrial rotary table, comprising a central shaft seat and a small base plate, wherein a turntable frame is fixedly connected to the upper surface of the central shaft seat, a table panel is fixedly connected to the upper surface of the turntable frame, and a steel gear ring is fixedly connected to the outer ring wall of the turntable frame.

[0005] The upper surface of the small base plate is symmetrically and fixedly connected with a gear seat, and the upper surface of the gear seat is rotatably connected with a driven gear. The pin teeth of the driven gear mesh with the outer ring wall of the steel gear ring. The upper surface of the driven gear is provided with a positioning structure, and the lower surface of the positioning structure is fixedly connected to the upper surface of the small base plate.

[0006] Preferably, the system further includes a large base plate, on the upper surface of which a concave frame is fixedly connected, and the concave frame is located at the center of the upper surface of the large base plate. A second curved plate is symmetrically fixedly connected to the upper surface of the concave frame, and a hydraulic cylinder is fixedly connected to the lower surface of the second curved plate. The piston rod of the hydraulic cylinder is clearance-fitted with the top of the concave frame, and an arc-shaped block is fixedly connected to the end of the piston rod of the hydraulic cylinder. A bearing seat is fixedly connected to the upper surface of the large base plate. There are four bearing seats, which are symmetrically arranged. A driven shaft is rotatably connected between the inner sides of two bearing seats on the same side, and the center of the outer ring wall of the driven shaft corresponds to the bottom of the arc-shaped block. A universal joint is fixedly connected to one end of the driven shaft, and the other end of the universal joint is connected to the gear seat.

[0007] Preferably, the positioning structure includes two first bent plates. The lower surface of the first bent plate is fixedly connected to both sides of the upper surface of the small base plate. A square tube is fixedly connected to the other end of the first bent plate. A square rod is sleeved in the inner cavity of the square tube. A tension spring is fixedly connected to the upper surface of the square rod. The other end of the tension spring is fixedly connected to the top of the inner wall of the square tube. A round block is fixedly connected to the other end of the square rod away from the tension spring. An electromagnet is installed in the inner cavity of the round block. The other side of the electromagnet is attracted to the upper surface of the driven gear.

[0008] Preferably, a phosphate layer is provided at the center of the outer ring wall of the driven shaft, and an arc-shaped brake pad is fixedly connected to the lower surface of the arc-shaped block, with the arc-shaped brake pad placed on the upper surface of the phosphate layer.

[0009] Preferably, the lower surface of the turntable frame is provided with a support wheel in a ring shape, and the wheel wall of the support wheel is in contact with the bottom of the turntable frame.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: When limiting the industrial rotary table, a steel gear ring is provided on the outer ring wall of the rotary table. The driven gear meshes at the tooth wall of the steel gear ring. A gear seat is provided at the bottom of the driven gear and rotates together. When the industrial rotary table stops, the positioning structure is activated to lift and lower. The positioning structure holds the gear stationary by electromagnet adsorbing it, thus positioning the rotary table. At the same time, the positioning structure is symmetrically arranged and has another set of backup electromagnets to ensure that at least one set is effectively adsorbed.

[0011] Meanwhile, a universal joint is extended from one end of the gear seat, and a driven shaft is connected to the other end of the universal joint. A hydraulically driven arc block is set up to drive the arc block to fit against the driven shaft and brake and limit it. Slow braking can be performed first. The mechanical impact when the rotary table stops is gradually reduced by the hydraulic cylinder. This prevents the peak load at the moment of meshing of the driven gear and ensures that the whole is stopped smoothly before the positioning structure is used. The positioning structure is used in conjunction with the positioning structure to achieve a better limit and positioning effect.

[0012] This device is used for the limiting mechanism of an industrial rotary table. It features a steel gear ring on the outer side, driven by multiple high-torque servo motors to rotate the table. A driven gear is positioned outside the gear ring, engaging with it for follow-through. When the rotary table stops, a positioning structure is activated for lifting and lowering. A universal coupling extends from one end of the gear housing, connecting to a driven shaft at the other end. Bearings at both ends of the driven shaft assist in rotation, ensuring greater stability during driven rotation. A hydraulically driven arc-shaped block engages with the driven shaft, braking and limiting its movement. This, combined with the positioning structure, achieves a superior limiting and positioning effect. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 for Figure 1 Detailed structural diagram of the intermediate gear housing;

[0015] Figure 3 for Figure 2 Detailed structural diagram of the driven shaft;

[0016] Figure 4 for Figure 2 Detailed structural diagram of the concave frame;

[0017] Figure 5 for Figure 4 Detailed view of the bottom of the central arc-shaped block;

[0018] Figure 6 for Figure 2 Detailed cross-sectional view of the central positioning structure;

[0019] In the diagram: 1. Central shaft seat; 2. Turntable frame; 3. Steel gear ring; 4. Tabletop; 5. Small base plate; 6. Positioning structure; 61. First curved plate; 62. Square tube; 63. Square rod; 64. Tension spring; 65. Round block; 66. Electromagnet; 7. Gear seat; 8. Driven gear; 9. Universal coupling; 10. Large base plate; 11. Bearing seat; 12. Driven shaft; 13. Phosphate layer; 14. Concave frame; 15. Second curved plate; 16. Hydraulic cylinder; 17. Arc block; 18. Arc brake pad; 19. Support wheel. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-6 This utility model provides a technical solution: a limiting structure for an industrial rotary table, including a central shaft seat 1 and a small base plate 5. A turntable frame 2 is fixedly connected to the upper surface of the central shaft seat 1, a table panel 4 is fixedly connected to the upper surface of the turntable frame 2, and a steel gear ring 3 is fixedly connected to the outer ring wall of the turntable frame 2.

[0022] The central shaft seat 1 serves as the central support mechanism of the turntable frame 2, providing it with a rotatable function. Meanwhile, the surface of the turntable frame 2 is provided with a table panel 4, and a steel gear ring 3 is provided on the outer side. Multiple high-torque servo motors can be installed on the outer side of the steel gear ring 3 for driving. The combination of the above structures forms a complete industrial rotary table. Depending on the actual situation, at least two motors can be configured to complete the overall rotation operation.

[0023] like Figure 2 , Figure 3 , Figure 6 As shown, a gear seat 7 is symmetrically fixedly connected to the upper surface of the base plate 5, and a driven gear 8 is rotatably connected to the upper surface of the gear seat 7. The pin teeth of the driven gear 8 mesh with the outer ring wall of the steel gear ring 3. A positioning structure 6 is provided on the upper surface of the driven gear 8, and the lower surface of the positioning structure 6 is fixedly connected to the upper surface of the small base plate 5. At the same time, the driven gear 8 and the above structure can be arranged in a ring according to the actual situation to ensure the overall positioning work.

[0024] Gear seats 7 are symmetrically arranged on the surface of the small base plate 5. The arrangement of two gear seats 7 avoids the inability to position due to the damage of one of them. A driven gear 8 is arranged on the surface of the gear seat 7. The two are connected by a key to achieve rotation. The driven gear 8 is driven by the steel gear ring 3. When the industrial rotary table stops, the positioning structure 6 is activated to lift and lower, and is engaged with the driven gear 8 to position and maintain the positioning of the industrial rotary table.

[0025] like Figure 2 , Figure 3 , Figure 4As shown, it also includes a large base plate 10. A concave frame 14 is fixedly connected to the upper surface of the large base plate 10, and the concave frame 14 is located at the center of the upper surface of the large base plate 10. A second curved plate 15 is symmetrically fixedly connected to the upper surface of the concave frame 14. A hydraulic cylinder 16 is fixedly connected to the lower surface of the second curved plate 15. The piston rod of the hydraulic cylinder 16 is clearance-fitted with the top of the concave frame 14. An arc-shaped block 17 is fixedly connected to the end of the piston rod of the hydraulic cylinder 16. A bearing seat 11 is fixedly connected to the upper surface of the large base plate 10. There are four bearing seats 11, which are symmetrically arranged. A driven shaft 12 is rotatably connected between the inner sides of two bearing seats 11 on the same side. The center of the outer ring wall of the driven shaft 12 corresponds to the bottom of the arc-shaped block 17. A universal joint 9 is fixedly connected to one end of the driven shaft 12. The other end of the universal joint 9 is connected to the gear seat 7.

[0026] A universal joint 9 extends from one end of the gear seat 7. When the driven gear 8 rotates, it will drive the universal joint 9 to rotate together. A driven shaft 12 is connected to the other end of the universal joint 9. Bearing seats 11 are provided at both ends of the driven shaft 12 to assist rotation and ensure greater stability during driven rotation. The bottom is fixed by a large base plate 10. A concave frame 14 is also provided at the bottom of the large base plate 10. The concave frame 14 is inverted concave and is located directly above the center of the driven shaft 12. A second curved plate 15 is symmetrically provided on the upper surface of the concave frame 14. A hydraulic cylinder 16 is provided at the bottom of the second curved plate 15. The piston rod of the hydraulic cylinder 16 passes through the concave frame 14 and can slide and extend while maintaining clearance fit. This drives the arc block 17 to fit against the driven shaft 12 and brake and limit it. This, together with the positioning structure 6, achieves a better limiting and positioning effect.

[0027] like Figure 2 , Figure 6 As shown, the positioning structure 6 includes two first bent plates 61. The lower surface of the first bent plate 61 is fixedly connected to both sides of the upper surface of the small base plate 5. The other end of the first bent plate 61 is fixedly connected to a square tube 62. A square rod 63 is sleeved in the inner cavity of the square tube 62. A tension spring 64 is fixedly connected to the upper surface of the square rod 63. The other end of the tension spring 64 is fixedly connected to the top of the inner wall of the square tube 62. A round block 65 is fixedly connected to the other end of the square rod 63 away from the tension spring 64. An electromagnet 66 is installed in the inner cavity of the round block 65. The other side of the electromagnet 66 is attracted to the upper surface of the driven gear 8.

[0028] The specific use of positioning structure 6 is as follows: the first bent plate 61 serves as the main body of the structure and is fixed on both sides of the surface of the small base plate 5. A square tube 62 is fixed at the other end. A slidable square rod 63 is fitted inside the square tube 62. A tension spring 64 is installed between the square rod 63 and the square tube 62 for pulling. A round block 65 is installed at the other end of the square rod 63. An electromagnet 66 is installed at the center of the round block 65. When the industrial rotary table stops, the power supply of the electromagnet 66 is turned on. The strong attraction of the electromagnet 66 will cause the square rod 63 to move downward, so that the electromagnet 66 will attract the driven gear 8. The shape of the square rod 63 and the square tube 62 ensures that the driven gear 8 will no longer rotate after attraction. When the power supply of the electromagnet 66 is turned off, the attraction between the two is canceled, and the tension spring 64 will pull and reset the gear.

[0029] like Figure 3 , Figure 4 , Figure 5 As shown, a phosphate layer 13 is provided at the center of the outer ring wall of the driven shaft 12, and an arc-shaped brake pad 18 is fixedly connected to the lower surface of the arc-shaped block 17, with the arc-shaped brake pad 18 placed on the upper surface of the phosphate layer 13.

[0030] When the arc-shaped block 17 moves downward, the arc-shaped brake pad 18 contacts the surface of the driven shaft 12. The surface of the driven shaft 12 is also provided with a phosphate layer 13. The phosphate layer 13 is a pretreatment. By forming a dense phosphate film at the center of the driven shaft 12, its fit performance with the arc-shaped brake pad 18 is significantly improved. When the two are in contact, friction is generated, which makes the braking and limiting effect better.

[0031] like Figure 1 As shown, a support wheel 19 is arranged in a ring on the lower surface of the turntable frame 2, and the wheel wall of the support wheel 19 is in contact with the bottom of the turntable frame 2.

[0032] The support wheels 19 are arranged in a ring and distributed, with the bottom fixed to the ground and the top wheel wall fitting into the turntable frame 2, providing a stable ring support function for the industrial rotary table and ensuring greater stability when it rotates.

[0033] Working Principle: This device is used for the limiting link of an industrial rotary table. A steel gear ring 3 is set on the outside, and multiple high-torque servo motors are set on the outside of the steel gear ring 3 to drive the rotation of the rotary table. At the same time, a driven gear 8 is set on the outside of the steel gear ring 3. The driven gear 8 is driven by the steel gear ring 3. When the industrial rotary table stops, the positioning structure 6 is activated to raise and lower. At the same time, a universal coupling 9 is set on one end of the gear seat 7. The other end of the universal coupling 9 is connected to the driven shaft 12. Bearing seats 11 are set at both ends of the driven shaft 12 to assist rotation and ensure more stable driven rotation. A hydraulically driven arc block 17 is also set. The arc block 17 is driven to engage with the driven shaft 12 to brake and limit it. Together with the positioning structure 6, it achieves a better limiting and positioning effect.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A limiting structure for an industrial rotary table, characterized in that: It includes a central shaft seat (1) and a small base plate (5). A turntable frame (2) is fixedly connected to the upper surface of the central shaft seat (1). A table panel (4) is fixedly connected to the upper surface of the turntable frame (2). A steel gear ring (3) is fixedly connected to the outer ring wall of the turntable frame (2). The upper surface of the small base plate (5) is symmetrically fixedly connected with a gear seat (7), and the upper surface of the gear seat (7) is rotatably connected with a driven gear (8). The pin teeth of the driven gear (8) mesh with the outer ring wall of the steel gear ring (3). The upper surface of the driven gear (8) is provided with a positioning structure (6), and the lower surface of the positioning structure (6) is fixedly connected to the upper surface of the small base plate (5).

2. The limiting structure of an industrial rotary table according to claim 1, characterized in that: It also includes a large base plate (10), on the upper surface of which a concave frame (14) is fixedly connected, and the concave frame (14) is located at the center of the upper surface of the large base plate (10). A second curved plate (15) is symmetrically fixedly connected to the upper surface of the concave frame (14), and a hydraulic cylinder (16) is fixedly connected to the lower surface of the second curved plate (15). The piston rod of the hydraulic cylinder (16) is clearance-fitted with the top of the concave frame (14), and an arc-shaped part is fixedly connected to the end of the piston rod of the hydraulic cylinder (16). Block (17), the upper surface of the large base plate (10) is fixedly connected to a bearing seat (11), there are four bearing seats (11) and they are symmetrically arranged. A driven shaft (12) is rotatably connected between the inner sides of two bearing seats (11) on the same side, and the center of the outer ring wall of the driven shaft (12) corresponds to the bottom of the arc block (17). One end of the driven shaft (12) is fixedly connected to a universal joint (9), and the other end of the universal joint (9) is connected to the gear seat (7).

3. The limiting structure of an industrial rotary table according to claim 1, characterized in that: The positioning structure (6) includes a first bent plate (61), and there are two first bent plates (61). The lower surface of the first bent plate (61) is fixedly connected to both sides of the upper surface of the small base plate (5). The other end of the first bent plate (61) is fixedly connected to a square tube (62). A square rod (63) is sleeved in the inner cavity of the square tube (62). A tension spring (64) is fixedly connected to the upper surface of the square rod (63). The other end of the tension spring (64) is fixedly connected to the top of the inner wall of the square tube (62). A round block (65) is fixedly connected to the other end of the square rod (63) away from the tension spring (64). An electromagnet (66) is installed in the inner cavity of the round block (65). The other side of the electromagnet (66) is attracted to the upper surface of the driven gear (8).

4. The limiting structure of an industrial rotary table according to claim 2, characterized in that: A phosphate layer (13) is provided at the center of the outer ring wall of the driven shaft (12), and an arc-shaped brake pad (18) is fixedly connected to the lower surface of the arc-shaped block (17), and the arc-shaped brake pad (18) is placed on the upper surface of the phosphate layer (13).

5. The limiting structure of an industrial rotary table according to claim 1, characterized in that: The lower surface of the turntable (2) is provided with a support wheel (19) in a ring, and the wheel wall of the support wheel (19) is in contact with the bottom of the turntable (2).

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