Industrial robot connection base facilitating angle adjustment

Abstract

The present application relates to the technical field of robot connecting base, and particularly relates to an industrial robot connecting base facilitating angle adjustment. The technical scheme comprises the following: a shell is installed on the bottom plate, a turntable is rotatably installed on the shell, and the turntable is used for installing an industrial robot; an electric push rod is installed on the bottom plate in the shell, an output end of the electric push rod is provided with a worm wheel, a worm is installed on one side of the worm wheel in the shell, the worm is in mesh transmission with the worm wheel, the worm wheel is provided with a connecting seat, a transmission shaft is rotatably installed at the top end of the shell, the bottom end of the turntable is provided with a transmission wheel, and the transmission shaft and the transmission wheel are connected through ratchet teeth transmission. Through mutual cooperation of the worm wheel worm transmission, the electric push rod driving and the ratchet teeth one-way transmission mechanism, the functions of accurate adjustment, locking and rapid adjustment of the angle of the turntable are realized.

Description

Technical Field

[0001] This invention relates to the field of robot connection base technology, and more specifically to an industrial robot connection base that is easy to adjust the angle. Background Technology

[0002] Industrial robots are multi-jointed manipulators or multi-degree-of-freedom machines designed for industrial applications. They can automatically perform tasks and rely on their own power and control capabilities to achieve various functions. They can be commanded by humans or operate according to pre-programmed procedures. Modern industrial robots can also act according to principles established by artificial intelligence technology. Industrial robots require a connecting base for installation. However, existing industrial robot connecting bases are inconvenient for adjusting their angle after installation, resulting in poor robot performance when operating on different production lines.

[0003] A search revealed that patent application CN202220370613.4 discloses an industrial robot connecting base with easily adjustable angles. While this device increases base stability through a shock-absorbing mechanism to prevent accidents due to instability, and allows for 360-degree rotation via a rotating shaft and turntable, improving work efficiency by stopping at any angle, and features a motor for simple operation and a return spring for quick return to its original position when not in use, it lacks a locking mechanism after angle adjustment. Without an effective locking mechanism, the base may experience slight angle changes due to external factors (such as vibration) during industrial robot operation, affecting the robot's accuracy and stability. During high-precision or high-load operations, unexpected changes in the base angle could lead to robot malfunction or damage, and even pose a safety threat to operators. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an industrial robot connection base that facilitates angle adjustment, thus solving the problems mentioned in the background art.

[0005] The solution of the present invention to the above-mentioned technical problems is as follows:

[0006] An industrial robot connection base that is easy to adjust the angle includes a base plate, a housing is mounted on the base plate, and a turntable is rotatably mounted on the housing for mounting an industrial robot.

[0007] An electric push rod is installed on the base plate inside the outer casing. A worm gear is installed at the output end of the electric push rod. A worm is installed inside the outer casing on one side of the worm gear. A servo motor is installed at one end of the worm, which drives the worm to rotate. The worm meshes with the worm gear for transmission. A connecting seat is provided on the worm gear. A drive shaft is rotatably installed at the top of the outer casing. A drive wheel is provided at the bottom of the turntable. The drive shaft and the drive wheel are connected by a ratchet tooth transmission.

[0008] A support base is installed at the top of the outer shell, and the turntable is rotatably mounted on the outer shell with the support base. The drive shaft and the connecting seat are plugged into each other.

[0009] Based on the above technical solution, the present invention can be further improved as follows.

[0010] Furthermore, the ratchet teeth are elastically mounted on the fixed plate of the drive shaft by a torsion spring.

[0011] The beneficial effects of adopting the above-mentioned further solutions are:

[0012] The ratchet teeth are elastically mounted on the fixed plate of the drive shaft via torsion springs. This design allows the ratchet teeth to deflect under external force, thus engaging and disengaging with the drive wheel's tooth grooves. When the drive shaft rotates, the ratchet teeth smoothly engage with the drive wheel's tooth grooves, driving the drive wheel to rotate in one direction. When an external force acts in the opposite direction on the drive wheel, the ratchet teeth disengage from the tooth grooves under the action of the torsion springs, preventing the drive wheel from rotating in the opposite direction. This design not only improves the reliability and stability of the transmission but also enables the turntable to achieve unidirectional rotation, meeting the specific needs of industrial robots for angle adjustment.

[0013] Furthermore, the inner side of the transmission wheel is provided with a toothed groove, and the toothed groove engages with the ratchet teeth of the fixed disk, thereby driving the transmission wheel to rotate in one direction through the transmission shaft.

[0014] The beneficial effects of adopting the above-mentioned further solutions are:

[0015] The toothed grooves on the inner side of the drive wheel engage with the ratchet teeth of the fixed disc, enabling unidirectional transmission between the drive shaft and the drive wheel. When the drive shaft rotates, the ratchet teeth smoothly engage with the toothed grooves of the drive wheel, thus driving the drive wheel and the turntable to rotate. Due to the unidirectional nature of the ratchet teeth, when an external force acts in the opposite direction on the drive wheel, the ratchet teeth disengage from the toothed grooves, preventing the drive wheel and the turntable from rotating in opposite directions. This unidirectional transmission design not only improves the efficiency and stability of the transmission but also allows the turntable to remain locked when needed, preventing accidental rotation due to external forces.

[0016] Furthermore, the connector has a receiving groove, a keyway is provided above the receiving groove, and a guide block is provided in the receiving groove. The receiving groove is connected to the keyway through the guide block.

[0017] The beneficial effects of adopting the above-mentioned further solutions are:

[0018] The connector features a receiving groove and keyway design, along with a guide block within the receiving groove. This structure allows the spindle's key teeth to smoothly enter the keyway through the guide block and achieve a secure connection with the connector. When the electric actuator drives the worm gear to rise and fall, the connector also rises and falls accordingly, engaging with the spindle's key teeth through the keyway to drive the rotation of the transmission shaft. This design not only improves the accuracy and stability of the transmission but also makes the turntable's angle adjustment more flexible and controllable. Simultaneously, the guide block design also serves to guide and position, ensuring that the key teeth accurately enter the keyway and preventing transmission failure due to improper installation.

[0019] Furthermore, the bottom end of the fixed disk is provided with a main shaft, and the main shaft is provided with key teeth. The main shaft cooperates with the keyway of the connecting seat through the key teeth, thereby facilitating the driving of the transmission shaft to rotate through the connecting seat.

[0020] The beneficial effects of adopting the above-mentioned further solutions are:

[0021] This design achieves a stable connection and transmission between the spindle and the connecting seat. When the electric actuator drives the connecting seat to rise or fall, the keyway of the connecting seat accurately engages with the key teeth of the spindle, forming a stable transmission connection. In this way, the drive shaft can be easily driven to rotate via the connecting seat, thereby achieving the angle adjustment of the turntable. This design not only improves the accuracy and stability of the transmission but also makes the turntable angle adjustment process smoother and more controllable.

[0022] Furthermore, the connecting seat is driven to rise and fall by an electric push rod. When the turntable needs to be precisely adjusted in rotation angle or when the turntable needs to be locked after rotation, the keyway of the connecting seat is driven by the electric push rod to engage with the key teeth of the transmission shaft.

[0023] The beneficial effects of adopting the above-mentioned further solutions are:

[0024] The connection seat is raised and lowered by an electric actuator, allowing for flexible control of the engagement and disengagement between the keyway of the connection seat and the key teeth of the drive shaft. When precise adjustment of the turntable angle is required or the turntable needs to be locked after rotation, the electric actuator drives the connection seat to rise, ensuring a tight engagement between the keyway and the key teeth, thereby guaranteeing the accuracy and stability of the transmission. This design not only improves the accuracy and reliability of turntable angle adjustment but also allows the turntable to remain locked when needed, preventing accidental rotation due to external forces.

[0025] Furthermore, when a quick adjustment of the turntable is required, the connecting seat is driven by an electric push rod to position the key teeth in the receiving groove. Then, the main motor drives the drive wheel, which in turn drives the turntable to rotate via a synchronous belt.

[0026] The beneficial effects of adopting the above-mentioned further solutions are:

[0027] When rapid adjustment of the turntable angle is required, the connecting seat can be lowered via an electric actuator, causing the key teeth to be positioned within the receiving groove and separated from the key teeth of the drive shaft. This removes the constraint of the connecting seat from the turntable, allowing it to rotate freely via the main motor driving the drive wheel and synchronous belt for rapid rotation. This design not only improves the flexibility of turntable angle adjustment but also enables the turntable to respond quickly and adjust to the correct position when needed, meeting the rapid angle adjustment requirements of industrial robots. Furthermore, the separation of the key teeth from the keyway avoids safety issues caused by transmission failure during rapid rotation.

[0028] This invention provides an industrial robot connection base that facilitates angle adjustment. It offers the following advantages:

[0029] By combining an electric actuator and a worm gear transmission system, precise angle adjustment of the turntable (i.e., the mounting part of the industrial robot) can be achieved. This design allows users to easily change the direction of the industrial robot when needed, improving work flexibility and efficiency.

[0030] By utilizing the interaction between the ratchet teeth and the drive wheel, the turntable achieves unidirectional rotation and locking functions. This means that when it is necessary to keep the turntable in a fixed position, the locking action of the ratchet teeth can prevent the turntable from rotating accidentally, increasing the stability and safety of the system.

[0031] The entire connecting base features a compact design, with simple and clear connections and transmission methods between components, making it easy for users to install, debug, and operate. Furthermore, the electric push rod drives the connecting base to rise and fall, enabling precise control of the drive shaft and turntable rotation, thus making the entire system more convenient to operate.

[0032] This connecting base is suitable not only for industrial robots requiring precise angle adjustments but also for scenarios requiring rapid turntable position adjustments. By adjusting the position of the electric actuator, the turntable's operating mode (precise adjustment or rapid adjustment) can be easily switched to meet different work requirements. Attached Figure Description

[0033] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention.

[0034] In the attached diagram:

[0035] Figure 1 This is a schematic diagram of the main appearance of the present invention;

[0036] Figure 2 This is a schematic diagram of the front half-section structure of the present invention;

[0037] Figure 3 This is a schematic diagram of the rear half-section structure of the present invention;

[0038] Figure 4 This is a schematic diagram of the main half-section structure of the connector of the present invention;

[0039] Figure 5 This is a bottom view of the transmission shaft structure of the present invention.

[0040] The attached diagram lists the components represented by each number as follows:

[0041] 1. Turntable; 10. Electric actuator; 11. Worm gear; 12. Connecting seat; 1201. Guide block; 1202. Receiving groove; 1203. Keyway; 13. Drive shaft; 1301. Fixed plate; 1302. Key tooth; 1303. Main shaft; 1304. Ratchet tooth; 14. Drive wheel; 1401. Tooth groove; 2. Housing; 3. Base plate; 4. Servo motor; 5. Main motor; 6. Synchronous belt; 7. Drive wheel; 8. Support seat; 9. Worm gear. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] Please see Figures 1 to 5 As shown, the embodiments provided by the present invention are as follows:

[0044] Example 1

[0045] An industrial robot mounting base with adjustable angle includes a base plate 3, a housing 2 mounted on the base plate 3, a turntable 1 rotatably mounted on the housing 2 for mounting the industrial robot, an electric push rod 10 mounted on the base plate 3 inside the housing 2, a worm gear 11 mounted at the output end of the electric push rod 10, a worm 9 mounted inside the housing 2 on one side of the worm gear 11, a servo motor 4 mounted at one end of the worm 9, driving the worm 9 to rotate, and the electric push rod 10 driving the worm gear 11 to engage or disengage with the worm 9, a connecting seat 12 provided on the worm gear 11, the connecting seat 12 being raised and lowered by the electric push rod 10, connecting... The connecting seat 12 has a receiving groove 1202, and a keyway 1203 is provided above the receiving groove 1202. A guide block 1201 is provided within the receiving groove 1202. The key teeth 1302 of the main shaft 1303 are guided into the keyway 1203 via the guide block 1201. The receiving groove 1202 communicates with the keyway 1203 via the guide block 1201. The design of the receiving groove 1202 and keyway 1203 within the connecting seat 12, along with the guide block 1201 within the receiving groove 1202, allows the key teeth 1302 of the main shaft 1303 to smoothly enter the keyway 1203 via the guide block 1201 and achieve a stable connection with the connecting seat 12. When the electric push rod 10 drives the turbine to rise and fall, the connecting seat 12 also rises and falls accordingly, thereby engaging with the key teeth 1302 of the main shaft 1303 via the keyway 1203 to drive the rotation of the transmission shaft 13. This design not only improves the accuracy and stability of the transmission, but also makes the angle adjustment of the turntable 1 more flexible and controllable. Meanwhile, the guide block 1201 also serves as a guide and positioner, ensuring that the key teeth 1302 can accurately enter the keyway 1203, avoiding transmission failure due to improper installation. A drive shaft 13 is rotatably mounted on the top of the housing 2, and a drive wheel 14 is located at the bottom of the turntable 1. The drive shaft 13 and the drive wheel 14 are connected by a ratchet tooth 1304. The inner side of the drive wheel 14 has a toothed groove 1401, which engages with the ratchet tooth 1304 of the fixed disk 1301. This allows the drive shaft 13 to drive the drive wheel 14 to rotate unidirectionally. The toothed groove 1401 on the inner side of the drive wheel 14 engages with the ratchet tooth 1304 of the fixed disk 1301. This design achieves unidirectional transmission between the drive shaft 13 and the drive wheel 14. When the drive shaft 13 rotates, the ratchet teeth 1304 can smoothly engage in the tooth grooves 1401 of the drive wheel 14, thereby driving the drive wheel 14 and the turntable 1 to rotate. Due to the unidirectional nature of the ratchet teeth 1304, when an external force acts in the opposite direction on the drive wheel 14, the ratchet teeth 1304 will disengage from the tooth grooves 1401, preventing the drive wheel 14 and the turntable 1 from rotating in the opposite direction.This unidirectional transmission design not only improves transmission efficiency and stability but also allows the turntable 1 to remain locked when needed, preventing accidental rotation due to external forces. The ratchet teeth 1304 are elastically mounted on the fixed plate 1301 of the transmission shaft 13 via a torsion spring. This design allows the ratchet teeth 1304 to deflect under external force, thus engaging and disengaging with the tooth groove 1401 of the transmission wheel 14. When the transmission shaft 13 rotates, the ratchet teeth 1304 smoothly engage with the tooth groove 1401 of the transmission wheel 14, driving the transmission wheel 14 to rotate unidirectionally. When an external force acts in the opposite direction on the transmission wheel 14, the ratchet teeth 1304 disengage from the tooth groove 1401 under the action of the torsion spring, preventing the transmission wheel 14 from rotating in the opposite direction. This design not only improves the reliability and stability of the transmission but also enables the turntable 1 to achieve unidirectional rotation, meeting the specific requirements of industrial robots for angle adjustment.

[0046] Example 2

[0047] To enable precise adjustment of the rotation angle of turntable 1 or to lock turntable 1 after rotation, for example, such as Figures 1 to 5As shown, the present invention further includes: a support base 8 installed at the top of the outer casing 2; the turntable 1 is rotatably mounted on the outer casing 2 with support from the support base 8; a transmission shaft 13 and a connecting seat 12 are interlocked; a main shaft 1303 is provided at the bottom of the fixed disk 1301; the main shaft 1303 has key teeth 1302; when the connecting seat 12 drives the worm gear 11 to descend via the electric push rod 10, the main shaft 1303 engages with the keyway 1203 of the connecting seat 12 via the key teeth 1302, thereby facilitating the driving of the transmission shaft 13 to rotate via the connecting seat 12. This design achieves a stable connection and transmission between the main shaft 1303 and the connecting seat 12. When the electric push rod 10 drives the connecting seat 12 to rise or fall, the keyway 1203 of the connecting seat 12 can accurately engage with the key teeth 1302 of the main shaft 1303, forming a stable transmission connection. In this way, the transmission shaft 13 can be easily driven to rotate via the connecting seat 12, thereby achieving the angle adjustment of the turntable 1. This design not only improves the accuracy and stability of the transmission but also makes the angle adjustment process of turntable 1 smoother and more controllable. When a rapid adjustment of turntable 1 is needed, the electric push rod 10 drives the worm gear 11 to drive the connecting seat 12, so that the key tooth 1302 is located in the receiving groove 1202, thereby separating the keyway 1203 from the key tooth 1302 of the drive shaft 13. Then, the main motor 5 drives the drive wheel 7, which drives the turntable 1 to rotate via the synchronous belt 6. When a rapid adjustment of the turntable 1 angle is needed, the electric push rod 10 can drive the connecting seat 12 to descend, so that the key tooth 1302 is located in the receiving groove 1202 and separated from the key tooth 1302 of the drive shaft 13. In this way, the turntable 1 is no longer restricted by the connecting seat 12 and can freely rotate rapidly via the main motor 5 driving the drive wheel 7 and the synchronous belt 6. This design not only improves the flexibility of the turntable 1 angle adjustment but also enables the turntable 1 to respond quickly and adjust to the required position when needed, meeting the needs of industrial robots for rapid angle adjustment. Meanwhile, the separation of the key teeth 1302 and the keyway 1203 avoids safety issues caused by transmission failure during rapid rotation. When the turntable 1 needs precise adjustment of its rotation angle or needs to be locked after rotation, the electric push rod 10 drives the worm gear 11 to lift the connecting seat 12, causing the keyway 1203 of the connecting seat 12 to mesh with the key teeth 1302 of the transmission shaft 13. By driving the lifting and lowering of the connecting seat 12 through the electric push rod 10, the meshing and disengagement between the keyway 1203 of the connecting seat 12 and the key teeth 1302 of the transmission shaft 13 can be flexibly controlled. When the angle of the turntable 1 needs precise adjustment or the turntable 1 needs to be locked after rotation, the electric push rod 10 drives the connecting seat 12 to rise, causing the keyway 1203 to mesh tightly with the key teeth 1302, thereby ensuring the accuracy and stability of the transmission. This design not only improves the accuracy and reliability of the turntable 1 angle adjustment, but also allows the turntable 1 to remain locked when needed, preventing accidental rotation due to external forces.

[0048] Working principle:

[0049] When the servo motor drives the worm gear to rotate, the worm gear meshes with the worm wheel for transmission. Due to the characteristics of worm gear transmission (large transmission ratio, smooth transmission, and self-locking), precise rotation and locking of the worm wheel can be achieved. Worm gear transmission also enables the device to achieve self-locking when needed, preventing the turntable from rotating on its own when no external force is applied.

[0050] The electric linear actuator is driven by an internal motor to move up and down. During this process, the output end of the electric linear actuator drives the worm gear to rise or fall. When the worm gear descends, it can fully engage with the worm for precise transmission; when the worm gear rises, it can disengage from the worm, at which point the turntable can rotate rapidly using other methods (such as the main motor driving the drive pulley and timing belt).

[0051] The drive shaft and drive wheel are connected by ratchet teeth. Ratchet teeth have a unidirectional transmission characteristic, meaning they can only transmit power in one direction. When the worm gear drives the drive shaft to rotate via the connecting seat, the drive wheel rotates unidirectionally due to the ratchet teeth, driving the turntable to rotate. When it is necessary to lock the turntable, simply raise the worm gear using an electric push rod, causing the keyway of the connecting seat to engage with the key teeth of the drive shaft. At this point, the self-locking property of the worm gear and the unidirectional transmission characteristic of the ratchet teeth work together to lock the turntable at a specific angle.

[0052] When rapid adjustments to the turntable are needed (such as changing the turntable angle over a large range), this can be achieved by driving the drive wheel and synchronous belt with the main motor. In this case, the worm gear and worm are disengaged to avoid unnecessary friction and wear. When precise adjustments or locking of the turntable are needed (such as fine-tuning the turntable angle within a small range or locking it in a specific position), this can be achieved by driving the worm gear down with an electric push rod to engage with the worm. In this case, the precision and self-locking nature of the worm gear transmission ensures that the turntable can precisely stop at the desired angle and be locked.

[0053] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the scope of the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0054] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An industrial robot connecting base facilitating angle adjustment, comprising a base plate (3), a housing (2) mounted on the base plate (3), and a rotating disc (1) rotatably mounted on the housing (2) and used for mounting an industrial robot, characterized in that: an electric push rod (10) is mounted on the base plate (3) inside the housing (2), an output end of the electric push rod (10) is provided with a worm wheel (11), a worm (9) is mounted on one side of the inside of the housing (2) and located at the worm wheel (11), one end of the worm (9) is provided with a servo motor (4), the worm (9) is driven to rotate by the servo motor (4), the worm (9) and the worm wheel (11) are in meshing transmission, the worm wheel (11) is provided with a connecting seat (12), a transmission shaft (13) is rotatably mounted on the top end of the housing (2), the bottom end of the rotating disc (1) is provided with a transmission wheel (14), and the transmission shaft (13) and the transmission wheel (14) are in transmission connection through a ratchet tooth (1304). The top end of the housing (2) is provided with a support seat (8), the rotating disc (1) is rotatably supported on the housing (2) through the support seat (8), and the transmission shaft (13) and the connecting seat (12) are mutually inserted. The inside of the transmission wheel (14) is provided with a tooth groove (1401), the tooth groove (1401) is clamped with the ratchet tooth (1304) of the fixed disc (1301), and then the transmission wheel (14) is driven to rotate in one direction by the transmission shaft (13). The connecting seat (12) is provided with an accommodating groove (1202), a key groove (1203) is formed above the accommodating groove (1202), and the accommodating groove (1202) is provided with a guide block (1201). When the rotating disc (1) needs to be quickly adjusted, the connecting seat (12) is driven by the electric push rod (10), so that the key tooth (1302) is located in the accommodating groove (1202), then the driving wheel (7) is driven by the main motor (5), and the driving wheel (7) drives the rotating disc (1) to rotate through the synchronous belt (6). The ratchet tooth (1304) is elastically mounted on the fixed disc (1301) of the transmission shaft (13) by a torsional spring.

2. The industrial robot connecting base for easy angle adjustment according to claim 1, characterized in that: The bottom end of the fixed disc (1301) is provided with a main shaft (1303), the main shaft (1303) is provided with a key tooth (1302), the main shaft (1303) is matched with the key groove (1203) of the connecting seat (12) through the key tooth (1302), and then the transmission shaft (13) is driven to rotate by the connecting seat (12).

3. The industrial robot connecting base for easy angle adjustment according to claim 2, characterized in that: The connecting seat (12) is driven to lift by the electric push rod (10), when the rotating disc (1) needs to be accurately adjusted in rotation angle or needs to be locked after rotation, the key groove (1203) of the connecting seat (12) is meshed with the key tooth (1302) of the transmission shaft (13) by the electric push rod (10).

4. The industrial robot connecting base for easy angle adjustment of claim 1, wherein: ​

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