Improved rotary table

Abstract

An improved rotary table comprises a mounting table, a working rotary table is assembled on the mounting table, a rotating shaft is arranged in the center of the working rotary table, and the rotating shaft and the mounting table are rotationally assembled. A push cylinder is arranged on the side of the mounting table, a push rod of the push cylinder extends into the mounting table, a limiting column is assembled at the free end, located in the mounting table, of the push rod, and a control sliding groove matched with the limiting column is formed in the side face, deviating from the center, of the bottom of the working rotary table. Compared with the prior art, the utility model has the following beneficial effects: the mechanical structure is simplified, the number of parts is reduced, the maintenance cost and the failure rate are obviously reduced, and the reliability and the durability of the system are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of precision machining turntables, and in particular relates to an improved turntable. Background Art

[0002] With the rapid development of modern manufacturing industry, especially the continuous progress of precision machining, automated assembly and testing technology, higher requirements are placed on the flexibility, accuracy and stability of mechanical devices. As a key component connecting various processing and testing links, the turntable plays an indispensable role in the field of industrial automation. It not only needs to have high-precision positioning capabilities, but also be able to withstand the test of long-term continuous operation, while maintaining a low failure rate and maintenance cost to meet the needs of efficient and mass production.

[0003] However, traditional rotary table technology has some limitations in meeting these high standards. Especially for those rotary tables that rely on worm gears for transmission, although worm gears are widely used in occasions requiring precision transmission due to their self-locking performance and large transmission ratio, their complex mechanical structure has become a problem that cannot be ignored. This type of structure contains numerous gear components, bearings and fasteners, which not only increases manufacturing costs, but also brings challenges to assembly and debugging.

[0004] More specifically, the high contact stress and relatively low transmission efficiency of the worm gear mechanism make it easy to wear under long-term high-load operation, which in turn affects the positioning accuracy and service life of the turntable. In addition, the complexity of its internal structure increases the difficulty of daily maintenance and troubleshooting, and often requires professional technicians to perform regular inspections and lubrication, which undoubtedly further increases maintenance costs.

[0005] In view of the above situation, the market urgently needs a turntable solution with simpler structure, lower maintenance cost and higher reliability to meet the comprehensive requirements of modern industrial production for efficiency, cost control and sustainability. Therefore, developing a new turntable structure to simplify the mechanical structure, reduce the number of parts, and improve the overall reliability and durability of the system has become an important direction of current technological innovation. Utility Model Content

[0006] In order to solve the above technical problems, the utility model solves them through the following technical solutions.

[0007] An improved turntable comprises a mounting table, on which a working turntable is mounted, an assembly cavity is arranged in the mounting table, a piston plate is arranged in the assembly cavity, the piston plate separates the assembly cavity into a first cavity and a second cavity, a rotating shaft is arranged on the side of the piston plate facing the first cavity, the rotating shaft is rotatably assembled with the working turntable; a first joint and a second joint are arranged on the side of the mounting table, the first joint and the second joint respectively connect the first cavity and the second cavity correspondingly.

[0008] Preferably, the piston plate is equipped with a plurality of elastic members on the upper surface facing the first cavity, and the tops of the elastic members abut against the upper top of the assembly cavity.

[0009] Preferably, a wear-resistant sleeve is mounted on the side of the piston plate in contact with the side wall of the mounting chamber.

[0010] Preferably, the assembly cavity has an opening at the bottom, and a sealing plate is mounted at the bottom of the assembly cavity.

[0011] Preferably, a first sealing member is installed on the side of the mounting platform and in the gap between the piston and the mounting platform; and a second sealing member is installed in the gap between the sealing plate and the mounting platform.

[0012] Preferably, a pushing cylinder is provided on the side of the mounting platform, and the push rod of the pushing cylinder extends into the mounting platform. A limiting column is assembled on the free end of the push rod located in the mounting platform, and a control slide groove cooperating with the limiting column is provided on the side eccentric to the center of the bottom of the working turntable.

[0013] Preferably, a limiting slot is provided on the mounting platform, the push rod extends into the limiting slot, a limiting block is assembled on the free end of the push rod, and the limiting column is assembled on the limiting block; a limiting strip is assembled on the open side of the limiting slot, and a limiting slot cooperating with the limiting strip is provided on the limiting block.

[0014] Preferably, a plurality of assembly grooves are provided on the side surfaces of the mounting table, and the assembly grooves are used to assemble and connect the mounting table with the fourth axis swivel seat.

[0015] Preferably, a wiring groove is provided on the fourth-axis swivel seat, and the wiring groove is used to arrange the pipeline connected to the push cylinder; the pipeline passes through the bottom of the mounting platform and is connected to the push cylinder, and a fixing piece for fixing the pipeline is provided at the bottom of the mounting platform.

[0016] Preferably, a dust cover is provided on the upper surface of the mounting platform; an air distribution channel is provided inside the mounting platform, one end of the air distribution channel is connected to the second cavity, and the other end leads to the gap between the mounting platform and the dust cover; air is blown into the gap between the mounting platform and the dust cover through the air distribution channel, and the gas passes through the gap between the mounting platform and the working turntable and then escapes outward.

[0017] Compared with the prior art, the utility model has the following beneficial effects: the mechanical structure is simplified, the number of parts is reduced, and the maintenance cost and failure rate are significantly reduced, thereby improving the reliability and durability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional schematic diagram of the improved turntable.

[0019] Figure 2 It is a plan cross-sectional view of the improved turntable.

[0020] Figure 3 It is a three-dimensional schematic diagram of the partial structure of the improved turntable.

[0021] Figure 4 It is a three-dimensional schematic diagram of the push cylinder.

[0022] Figure 5 It is a three-dimensional schematic diagram of the working turntable.

[0023] Figure 6 This is the assembly diagram of the working turntable and piston plate.

[0024] Figure 7 Schematic diagram of the assembly of the improved turntable and the fourth axis turntable Figure 1 .

[0025] Figure 8 Schematic diagram of the assembly of the improved turntable and the fourth axis turntable Figure 2 .

[0026] The following is a description of the markings in the accompanying drawings of the specification:

[0027] 10. Mounting table; 11. Piston plate; 12. First chamber; 13. Second chamber; 14. First joint; 15. Second joint; 16. Sealing plate; 17. First sealing member; 18. Second sealing member; 19. Elastic member; 20. Wear-resistant sleeve; 21. Limiting slide groove; 22. Limiting strip; 23. Assembly groove; 24. Fixing member; 25. Indexing groove; 26. Dust cover;

[0028] 30. Working turntable; 31. Rotating shaft; 32. Control slide; 33. Positioning block;

[0029] 40. Push cylinder; 41. Push rod; 42. Limit column; 43. Limit block; 44. Limit groove;

[0030] 50. Fourth axis swivel seat; 51. Wiring trough; 52. Pipeline. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0032] In the following embodiments, the same or similar reference numerals throughout represent the same or similar components or components with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limitations on the present invention.

[0033] In the description of the present utility model, it should be understood that the terms: center, longitudinal, transverse, length, width, thickness, up, down, front, back, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, and therefore cannot be understood as limiting the present utility model. In addition, the terms: first, second, etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features shown. In the description of the present utility model, unless otherwise clearly specified and limited, the terms: install, connect, connect, etc. should be understood in a broad sense, and ordinary technicians in this field can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] Reference Figures 1 to 8 An improved turntable includes a mounting platform, a working turntable is mounted on the mounting platform, an assembly chamber is arranged in the mounting platform, a piston plate is arranged in the assembly chamber, the piston plate separates the assembly chamber into a first chamber and a second chamber, and the rotating shaft passes through the first chamber and is assembled and connected with the piston plate. A first joint and a second joint are arranged on the side of the mounting platform, and the first joint and the second joint are connected to the first chamber and the second chamber respectively. The setting of the first chamber and the second chamber, combined with the air pressure or hydraulic control of the first joint and the second joint, forms a lifting system, so that the working turntable can have a rapid response lifting capability while maintaining rotation flexibility, greatly expanding the application scope and operation flexibility of the turntable, and compared with the worm gear or gear transmission structure, this design simplifies the mechanical structure, reduces the number of parts, and significantly reduces the maintenance cost and failure rate, and improves the reliability and durability of the system.

[0035] Taking air pressure control as an example, in specific operations, when the working turntable needs to rise, the second chamber is inflated through the second joint, and the first chamber is exhausted through the first joint. The air pressure difference causes the piston plate to move upward, driving the rotating shaft and the working turntable connected to it to rise synchronously; conversely, if it needs to descend, the first chamber is inflated and the second chamber is exhausted. The piston plate descends under the action of air pressure and locks the working turntable to the mounting table. This design not only simplifies the lifting mechanism and reduces mechanical wear, but also ensures smooth and rapid movements. It is suitable for complex application scenarios that require processing or testing at different heights.

[0036] Furthermore, a push cylinder is provided on the side of the mounting platform, and a push rod of the push cylinder extends into the mounting platform. A limit column is mounted on the free end of the push rod located in the mounting platform, and a control slide groove cooperating with the limit column is provided on the side of the bottom of the working turntable that deviates from the center. A plurality of indexing grooves are equiangularly distributed around the rotating axis on the mounting platform, and a positioning block cooperating with the indexing groove is provided at the bottom of the working turntable. When the working turntable needs to be rotated, the working turntable is first driven to rise by air pressure control, so that the positioning block at the bottom of the working turntable is separated from the indexing groove, and then the working turntable is driven to rotate to a specific angle by the push cylinder, and then the working turntable is lowered so that the positioning block falls into the indexing groove.

[0037] In addition, in order to ensure the stability, sealing and safety of the lifting system, the bottom of the assembly cavity is open, the bottom of the assembly cavity is equipped with a sealing plate, and the upper surface of the mounting table is equipped with a dust cover. The side of the working turntable and the gap between the piston and the mounting table are equipped with a first seal. The first seal installed on the side of the working turntable is used to prevent processing debris from entering the first cavity, and the second seal is installed in the gap between the sealing plate and the mounting table. The first seal and the second seal installed in the gap between the piston and the mounting table can effectively seal the assembly cavity, ensuring precise control of lifting and lowering, while also reducing unnecessary energy consumption. These seals are made of wear-resistant, high-temperature-resistant, and anti-aging materials, and can maintain a good sealing effect under long-term high-load operation, thereby extending the service life of the equipment.

[0038] The mounting table is provided with an air distribution channel, one end of which is connected to the second cavity, and the other end of which is connected to the gap between the mounting table and the dust cover. Air is introduced into the second cavity and the air distribution channel through the second joint, and the working table rises so that the first seal is separated from the dust cover. At the same time, air is blown into the gap between the mounting table and the dust cover through the air distribution channel, and the gas passes through the gap between the mounting table and the working turntable and then escapes to the outside, so as to prevent machining debris from entering the fitting surface of the mounting table and the working turntable or the indexing groove and the positioning block.

[0039] Furthermore, the piston plate is equipped with a plurality of elastic members on the upper surface facing the first cavity, and the top of the elastic members abuts against the upper top of the assembly cavity. When the piston plate moves up and down, the elastic members can absorb the impact force, reduce the vibration and noise during the movement, and thus protect the equipment from unnecessary mechanical stress damage. The preload force of the elastic members can also be adjusted according to actual needs to adapt to different load conditions, further enhancing the smoothness and controllability of the turntable lifting action.

[0040] Furthermore, the side of the piston plate in contact with the side wall of the assembly chamber is equipped with a wear-resistant sleeve, which is used to reduce the direct friction between the piston plate and the side wall of the assembly chamber during the up and down reciprocating motion, avoid wear caused by long-term motion, and thus extend the life of key components of the equipment. The wear-resistant sleeve is usually made of materials with low friction coefficient and high wear resistance, such as polyoxymethylene (POM), nylon or special engineering plastics, which can maintain stable physical properties even under continuous dynamic loads, ensuring smooth and unobstructed piston movement.

[0041] Furthermore, a limiting slot is provided on the mounting platform, the push rod extends into the limiting slot, a limiting block is mounted on the free end of the push rod, and the limiting column is mounted on the limiting block. A limiting strip is mounted on the open side of the limiting slot, and a limiting slot cooperating with the limiting strip is provided on the limiting block. This design can prevent the limiting block from detaching from the limiting slot, prevent mechanical damage caused by exceeding the preset range, and maintain the accuracy of its motion trajectory. There are two groups of push cylinders, and correspondingly, two groups of control slots are provided at the bottom of the working turntable. The two groups of control slots are symmetrically distributed about the rotating axis. This symmetrical design realizes a balanced distribution of the load and significantly improves the stability and load-bearing capacity of the turntable rotation. The two groups of push cylinders work together to more accurately control the lifting and rotation of the turntable, and can ensure the synchronization of the movements even under full load, avoiding the tilting or vibration problems that may be caused by uneven force at a single point.

[0042] In order to further enhance the flexibility and versatility of the improved turntable, a number of assembly grooves are provided on the side of the mounting table, and the assembly grooves are used to assemble and connect the mounting table with the fourth-axis swivel seat, so that the turntable system is not limited to a single function or application field, but can be flexibly expanded to complex processing scenarios requiring multi-axis linkage according to different processing requirements or workpiece characteristics, such as three-dimensional engraving, precision mold processing, etc., greatly broadening its scope of use.

[0043] Furthermore, a wiring trough is provided on the fourth-axis swivel seat, and the wiring trough is used to arrange the pipelines connected to the push cylinder. The wiring trough is designed to efficiently manage and protect the pipelines required for the push cylinder (including but not limited to air pipes, liquid pipes, electric wires, etc.), ensuring that these key lines are not twisted, squeezed or interfered during the dynamic movement of the turntable, thereby maintaining the electrical safety of the system and the stability of signal transmission. The reasonable layout of the wiring trough helps to organize the messy pipelines, making the work site tidier and convenient for daily inspection and maintenance. The pipelines are connected to the push cylinder through the bottom of the mounting platform to ensure the concealment of the pipelines and ensure their durability in high-intensity working environments. Fixings for fixing the pipelines are provided at the bottom of the mounting platform to prevent the pipelines from loosening or being damaged due to vibrations generated by the operation of the equipment, thereby reducing potential failure points and improving the reliability and safety of the entire system.

[0044] The protection scope of the present invention includes but is not limited to the above embodiments. The protection scope of the present invention shall be based on the claims. Any replacement, deformation, and improvement of the technology that can be easily thought of by technicians in this field shall fall within the protection scope of the present invention.

Claims

1. An improved turntable, comprising a mounting platform, on which a working turntable is mounted, characterized in that: An assembly cavity is provided in the mounting platform, and a piston plate is installed in the assembly cavity. The piston plate separates the assembly cavity into a first cavity and a second cavity. A rotating shaft is installed on the side of the piston plate facing the first cavity, and the rotating shaft is rotatably assembled with the working turntable; a first joint and a second joint are provided on the side of the mounting platform, and the first joint and the second joint are connected to the first cavity and the second cavity respectively.

2. An improved turntable according to claim 1, characterized in that: The piston plate is equipped with a plurality of elastic members on the upper surface facing the first cavity, and the top of the elastic members abuts against the upper top of the assembly cavity.

3. An improved turntable according to claim 1, characterized in that: The side of the piston plate in contact with the side wall of the assembly cavity is equipped with a wear-resistant sleeve.

4. An improved turntable according to claim 1, characterized in that: The bottom of the assembly cavity is open, and a sealing plate is mounted on the bottom of the assembly cavity.

5. An improved turntable according to claim 4, characterized in that: The first sealing member is installed in the side of the mounting platform and in the gap between the piston and the mounting platform; the second sealing member is installed in the gap between the sealing plate and the mounting platform.

6. An improved turntable according to claim 1, characterized in that: A push cylinder is arranged on the side of the mounting platform, and a push rod of the push cylinder extends into the mounting platform. A limit column is assembled on the free end of the push rod located in the mounting platform, and a control slide groove cooperating with the limit column is arranged on the side eccentric from the center of the bottom of the working turntable.

7. An improved turntable according to claim 6, characterized in that: A limiting slot is provided on the mounting platform, the push rod extends into the limiting slot, a limiting block is assembled on the free end of the push rod, and the limiting column is assembled on the limiting block; a limiting strip is assembled on the open side of the limiting slot, and a limiting slot cooperating with the limiting strip is arranged on the limiting block.

8. An improved turntable according to claim 6, characterized in that: A plurality of assembly grooves are arranged on the side of the mounting table, and the assembly grooves are used to assemble and connect the mounting table with the fourth axis swivel seat.

9. An improved turntable according to claim 8, characterized in that: The fourth axis swivel seat is provided with a wiring groove, and the wiring groove is used to arrange the pipeline connected to the push cylinder; the pipeline passes through the bottom of the mounting platform and is connected to the push cylinder, and a fixing piece for fixing the pipeline is provided at the bottom of the mounting platform.

10. An improved turntable according to claim 1, characterized in that: A dust cover is mounted on the upper surface of the mounting platform; an air distribution channel is arranged inside the mounting platform, one end of the air distribution channel is connected to the second cavity, and the other end leads to the gap between the mounting platform and the dust cover; air is blown into the gap between the mounting platform and the dust cover through the air distribution channel, and the gas passes through the gap between the mounting platform and the working turntable and then escapes outward.

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