Clamping and positioning device for circular pipes with different sizes

Abstract

The invention discloses a clamping and positioning device for round pipes with different sizes, which comprises a base and further comprises a clamping drive arranged on the base, the clamping drive is used for driving a clamping structure, the clamping structure is arranged at one end of the clamping drive and used for clamping a workpiece, a rotating mechanism is arranged on the clamping structure, the rotating mechanism enables the workpiece to rotate, and the clamping drive is used for driving the clamping structure to rotate. A rotating drive is arranged on the rotating mechanism, the rotating drive is used for driving the rotating mechanism to rotate, and the clamping drive is used for clamping and fixing a workpiece which is driven by the rotating mechanism to rotate. According to the clamping and positioning device for the circular pipes of different sizes, a clamping driver can effectively change the driving direction and drive a clamping structure through a clamping motor, a first rotating shaft device and a driving rod, clamping and fixing of the circular pipes of different sizes are achieved, a vertical sealing plate in the clamping structure is provided with an anti-skid pad, and the anti-skid pad is matched with a threaded rod with opposite threads; the distance can be adjusted to adapt to different pipe diameters, and the limiting plate on the transverse sealing plate and the clamping device of the vertical sealing plate can ensure accurate positioning.

Description

Technical Field

[0001] The present invention relates to the technical field of circular tube processing, and specifically relates to a clamping and positioning device for circular tubes of different sizes. Background Art

[0002] In the field of circular tube processing, the clamping and positioning of circular tubes of different sizes has always been a key issue. Conventional clamping devices often have difficulty in flexibly adjusting when facing circular tubes of different diameters. Either they cannot firmly clamp, resulting in the displacement of the circular tube during the processing and affecting the accuracy; or due to the fixed structure, the applicable diameter range of the tube is narrow, and the equipment needs to be frequently replaced, reducing the production efficiency. Moreover, when rotating the circular tube for processing, the common driving method and the rotating mechanism have poor coordination and unstable power transmission, making the circular tube shake significantly when rotating, and it is difficult to meet the requirements of high-precision processing. Summary of the Invention

[0003] The purpose of the present invention is to provide a clamping and positioning device for circular tubes of different sizes to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A clamping and positioning device for circular tubes of different sizes, including a base, and further including:

[0005] A clamping drive provided on the base, the clamping drive is used to drive a clamping structure, and the clamping structure is provided at one end of the clamping drive and is used to clamp a workpiece;

[0006] A rotating mechanism is provided on the clamping structure, the rotating mechanism rotates the workpiece, and a rotating drive is provided on the rotating mechanism, and the rotating drive is used to drive the rotating mechanism to rotate;

[0007] The clamping drive clamps and fixes the workpiece that is driven to rotate by the rotating mechanism.

[0008] Preferably, the clamping drive includes a clamping motor, a first rotating shaft device is provided on the clamping motor, a driving rod is provided on the first rotating shaft device, and the driving rod is connected to the clamping structure. The first rotating shaft device is used to change the driving direction of the clamping motor.

[0009] Preferably, the clamping structure includes a connecting plate connected to the clamping drive, and the connecting plate is provided on the vertical sealing plate.

[0010] Preferably, an anti-slip pad is provided on the vertical sealing plate. There are at least two vertical sealing plates, which are arranged in a mirror image and opposite manner, and a threaded rod is also provided in the vertical sealing plate.

[0011] Preferably, a connector is provided in the middle section of the threaded rod, and another section of threaded rod is provided at the other end of the connector. The threads of the two threaded rods are opposite, and the two vertical sealing plates are respectively arranged on the two threaded rods.

[0012] Preferably, the vertical sealing plate is arranged on the horizontal sealing plate. A limiting plate is arranged in the horizontal sealing plate, and a clamping device is arranged on the vertical sealing plate. The clamping device is clamped on the limiting plate to limit it.

[0013] Preferably, the rotation drive includes a rotation motor arranged on the base. A second rotating device and a third rotating device are connected to the rotation motor. The second rotating device and the rotation motor are used to change the drive of the rotation motor. Rotating shaft connectors are respectively arranged on the second rotating device and the third rotating device. The rotating shaft connectors are used to connect the rotation drive and the rotation mechanism.

[0014] Preferably, the rotation mechanism includes a rotation outer shell arranged on the clamping structure. A bearing plate is arranged in the rotation outer shell. A gear rack is connected to the bearing plate. A first limiter is also arranged on the rotation outer shell. The first limiter limits the gear rack. An accommodating groove is formed in the gear rack, and a second limiter connected to the rotation outer shell is arranged in the accommodating groove.

[0015] Preferably, a fixing plate is arranged on the gear rack to limit the second limiter. The second limiter and the first limiter have the same shape. A connecting shaft rod is arranged on the first limiter. One end of the connecting shaft rod is connected with a runner, and the runner contacts the gear rack.

[0016] Preferably, power gears are arranged on the second rotating device and the third rotating device, and the power gears are meshed with the gear rack.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] For the clamping and positioning device for round tubes of different sizes, the clamping drive can effectively change the driving direction and drive the clamping structure through the clamping motor, the first rotating device and the driving rod, so as to realize the clamping and fixing of round tubes of different sizes. The vertical sealing plate in the clamping structure is provided with an anti-slip pad, and the distance can be adjusted to adapt to different pipe diameters in cooperation with the threaded rods with opposite threads. The limiting plate on the horizontal sealing plate and the clamping device on the vertical sealing plate can ensure accurate positioning.

[0019] For the clamping and positioning device for round tubes of different sizes, the rotation drive changes the driving direction by using the rotation motor, the second rotating device and the third rotating device, and is connected to the rotation mechanism through the rotating shaft connector. The gear rack of the rotation mechanism is meshed with the power gear. Under the action of the first and second limiters, it can stably drive the round tube to rotate, meet various processing requirements, and the overall device has accurate positioning, strong adaptability and stable operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a front view schematic diagram of the structure of the present invention;

[0021] Figure 2 is a rear view schematic diagram of the structure of the present invention;

[0022] Figure 3 is a front view schematic diagram of the inner side of the structure of the present invention;

[0023] Figure 4 of the present invention Figure 3 is an enlarged schematic diagram of the structure at position A in the present invention;

[0024] Figure 5 is a rear view schematic diagram of the inner side of the structure of the present invention;

[0025] Figure 6 of the present invention Figure 5 is an enlarged schematic diagram of the structure at position B in the present invention.

[0026] Figure 7 is a schematic diagram of the rotational drive of the present invention.

[0027] In the figure: 1, base; 2, clamping drive; 21, clamping motor; 22, first rotating shaft device; 23, drive rod; 3, clamping structure; 31, vertical sealing plate; 32, connecting plate; 33, horizontal sealing plate; 34, threaded rod; 35, connector; 36, anti-slip pad; 37, limiting plate; 38, clamping device; 4, rotating mechanism; 41, rotating housing; 42, first limiter; 421, connecting shaft rod; 422, runner; 43, gear rack; 44, fixing plate; 45, receiving groove; 46, second limiter; 47, power gear; 48, bearing plate; 5, rotational drive; 51, second rotating shaft device; 52, third rotator; 53, rotating motor; 54, shaft connector. DETAILED DESCRIPTION OF THE INVENTION

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Please refer to Figures 1-7, the present invention provides a technical solution: a clamping and positioning device for circular tubes of different sizes, including a base 1. The base 1 is used to carry and support the remaining structures to ensure that the device can be stably connected. It also includes: a clamping drive 2 provided on the base 1. The clamping drive 2 is used to drive the clamping structure 3, so as to ensure that the clamping structure 3 can clamp the workpiece. The clamping drive 2 is used to drive the clamping structure 3. The clamping structure 3 is provided at one end of the clamping drive 2. The clamping structure 3 can clamp circular workpieces of different sizes, fix the workpiece, and ensure that it will not rotate. It is used to clamp the workpiece; a rotating mechanism 4 is provided on the clamping structure 3. The rotating mechanism 4 is used to drive the workpiece to rotate, ensuring that it can be automatically turned over during construction. The rotating mechanism 4 rotates the workpiece, ensuring that the workpiece can be automatically turned over during processing, so that manual turning is not required. A rotating drive 5 is provided on the rotating mechanism 4. The rotating drive 5 is used to drive the rotating mechanism 4 to rotate, thereby driving the workpiece to rotate. The rotating drive 5 is used to drive the rotating mechanism 4 to make it rotate; the clamping drive 2 clamps and fixes the workpiece rotated by the rotating mechanism 4.

[0030] The clamping drive 2 includes a clamping motor 21. The clamping motor 21 is used to drive the clamping structure 3. The clamping motor 21 is a rotating motor. A first shaft coupler 22 is provided on the clamping motor 21. The first shaft coupler 22 is used to change the transmission direction of the clamping motor 21, so as to drive a drive rod 23 perpendicular to the clamping motor 21. The advantage of the first shaft coupler 22 is to reduce the occupied area of the device and effectively change the size of the device. A drive rod 23 is provided on the first shaft coupler 22. The drive rod 23 is used to drive a threaded rod 34 to rotate, so as to perform a lateral movement. The drive rod 23 is connected to the clamping structure 3 to ensure that the driving force of the clamping motor 21 can be transmitted to the clamping structure 3. The first shaft coupler 22 is used to change the driving direction of the clamping motor 21.

[0031] The clamping motor 21, as a rotary motor, outputs power after startup. Its power is first transmitted to the connected first shaft coupler 22. The first shaft coupler 22 plays a key role. It changes the transmission direction of the clamping motor 21, converting the original rotational force along the motor axis into the power to drive the driving rod 23 that is perpendicular to the motor. This design not only effectively reduces the occupied area of the device and optimizes the device size but also provides a reasonable conversion of the force direction for subsequent driving actions. Driven by the first shaft coupler 22, the driving rod 23 starts to rotate. Since the driving rod 23 is connected to the clamping structure 3, it transmits the driving force of the clamping motor 21 to the clamping structure 3. In the clamping structure 3, the rotation of the driving rod 23 is further used to drive the threaded rod 34 to rotate. The rotation of the threaded rod 34 is converted into a lateral movement, and through this lateral movement, the clamping structure 3 is adjusted, thereby realizing the clamping operation of round tubes of different sizes, ensuring that the entire clamping drive 2 system can work stably and efficiently, and meeting the clamping requirements in round tube processing.

[0032] The clamping structure 3 includes a connecting plate 32 connected to the clamping drive 2. The connecting plate 32 is used to connect the clamping drive 2 and the clamping structure 3, enabling the threaded rod 34 to be driven by the clamping motor 21 to rotate. The connecting plate 32 is provided on the vertical sealing plate 31. The vertical sealing plate 31 is provided with an anti-slip pad 36. The anti-slip pad 36 is used to contact and clamp the workpiece, thereby enhancing the friction between the vertical sealing plate 31 and the workpiece and ensuring that the workpiece can be stably clamped and fixed by the vertical sealing plate 31. There are at least two vertical sealing plates 31. The two move inward together to achieve the effect of clamping the workpiece, and they are arranged in a mirror-image opposition. The movement is also in a mirror-image movement. The threaded rod 34 is also provided in the vertical sealing plate 31. The rotation of the threaded rod 34 can drive the two vertical sealing plates 31 to move. The middle section of the threaded rod 34 is provided with a connector 35. The two ends of the connector 35 are connected to two threaded rods 34 with the same size and opposite threads, so that the two vertical sealing plates 31 on it can achieve a relative movement effect. The other end of the connector 35 is provided with another section of threaded rod 34 with opposite threads at both ends, so that the vertical sealing plates 31 can move relatively horizontally. The two vertical sealing plates 31 are respectively arranged on the two threaded rods 34. Only in this way can the rotation of the threaded rod 34 drive the vertical sealing plates 31 to move. The vertical sealing plate 31 is arranged on the horizontal sealing plate 33. The horizontal sealing plate 33 is provided with a limiting plate 37. The limiting plate 37 is used to limit and fix the vertical sealing plate 31 to prevent the vertical sealing plate 31 from detaching from the horizontal sealing plate 33. The vertical sealing plate 31 is provided with a clamping connector 38. The clamping connector 38 is clamped on the limiting plate 37 to ensure that the vertical sealing plate 31 will not detach, and the clamping connector 38 is clamped on the limiting plate 37 to limit it.

[0033] When the clamping structure 3 is working, the connecting plate 32 connects the clamping drive 2 and the clamping structure 3, enabling the clamping motor 21 to drive the threaded rod 34 to rotate. In the middle section of the threaded rod 34, there is a connector 35, and at both ends, there is a threaded rod 34 with the same size but opposite threads. Two vertical sealing plates 31 are respectively arranged on these two threaded rods 34. When the threaded rod 34 rotates, due to the reverse threads, it drives the two vertically arranged sealing plates 31 that are mirror opposites to move horizontally relative to each other. The anti-slip pads 36 on the vertical sealing plates 31 increase the friction with the workpiece to ensure stable clamping. The vertical sealing plates 31 are installed on the horizontal sealing plates 33, and the limiting plates 37 in the horizontal sealing plates 33 cooperate with the connectors 38 on the vertical sealing plates 31 to prevent the vertical sealing plates 31 from detaching from the horizontal sealing plates 33, ensuring the stable operation of the entire clamping structure 3 and realizing the effective clamping of round tubes of different sizes.

[0034] The rotation drive 5 includes a rotation motor 53 arranged on the base 1. The rotation motor 53 is used to drive the rotation mechanism 4 so that it can rotate. A second rotating shaft device 51 and a third rotating device 52 are connected to the rotation motor 53. The second rotating shaft device 51 and the third rotating device 52 are used to transmit the rotational driving force of the rotation motor 53, and the principle is the same as that of the first rotating shaft device 22. The second rotating shaft device 51 and the rotation motor 53 are used to change the drive of the rotation motor 53. Rotating shaft connectors 54 are respectively arranged on the second rotating shaft device 51 and the third rotating device 52. The rotating shaft connectors 54 are used to fix the second rotating shaft device 51 and the third rotating device 52 on the rotation mechanism 4, so as to ensure that they will not detach during operation. The rotating shaft connectors 54 are used to connect the rotation drive 5 and the rotation mechanism 4 to ensure the stability of the connection and prevent accidents caused by accidental detachment and injury to personnel.

[0035] When the rotation drive 5 is working, the rotation motor 53 installed on the base 1 starts and outputs rotational driving force. The second rotating shaft device 51 and the third rotating device 52 connected to the rotation motor 53, like the first rotating shaft device 22, are responsible for transmitting the driving force of the rotation motor 53. The second rotating shaft device 51 can also change the driving direction of the rotation motor 53 to meet the operation requirements of the device. Rotating shaft connectors 54 are respectively arranged on the second rotating shaft device 51 and the third rotating device 52. They are fixed on the rotation mechanism 4 through the rotating shaft connectors 54 to ensure the stability of the connection between the rotation drive 5 and the rotation mechanism 4, prevent detachment during operation, and avoid accidents. In this way, the power of the rotation motor 53 is transmitted to the rotation mechanism 4 through the second rotating shaft device 51 and the third rotating device 52, driving it to rotate, and then realizing the rotation operation of the round tube to meet the rotation requirements during the processing of the round tube.

[0036] The rotating mechanism 4 includes a rotating outer shell 41 provided on the clamping structure 3. The rotating outer shell 41 can fixedly hold structures such as the carrier plate 48 to protect them. Inside the rotating outer shell 41, there is a carrier plate 48. The carrier plate 48 serves as the support of the device and is used to carry the remaining mechanisms. A gear rack 43 is connected to the carrier plate 48. The gear rack 43 rotates under the influence of the driving gear 47. There is also a first limiter 42 on the rotating outer shell 41. The first limiter 42 mainly limits the outside of the gear rack 43 to prevent the gear rack 43 from accidentally disengaging outward, and the first limiter 42 does not affect the rotation of the gear rack 43. The first limiter 42 limits the gear rack 43. An accommodation groove 45 is formed on the gear rack 43 to accommodate the second limiter 46, enabling the second limiter 46 to limit the gear rack 43 within the accommodation groove 45. The second limiter 46 connected to the rotating outer shell 41 is provided in the accommodation groove 45. The second limiter 46 can perform lateral limiting on the gear rack 43 to prevent the gear rack 43 from tipping over and can also ensure the rotation of the gear rack 43. A fixing plate 44 is provided on the gear rack 43. The fixing plate 44 is used to limit the second limiter 46 so that the gear rack 43 can be clamped on the second limiter 46 for limiting the second limiter 46. The second limiter 46 and the first limiter 42 have the same shape. A connecting shaft rod 421 is provided on the first limiter 42. The connecting shaft rod 421 is used to connect the rotating wheel 422 so that the rotating wheel 422 can rotate when it comes into contact with the gear rack 43. One end of the connecting shaft rod 421 is connected to the rotating wheel 422, and the rotating wheel 422 is in contact with the gear rack 43.

[0037] The rotating mechanism 4 is installed on the clamping structure 3, and its rotating outer shell 41 fixedly holds structures such as the carrier plate 48. The carrier plate 48 carries the remaining mechanisms, and the gear rack 43 connected to it starts to rotate under the action of the driving gear 47. The first limiter 42 on the rotating outer shell 41 limits the outside of the gear rack 43 to prevent it from disengaging outward without affecting the rotation. The gear rack 43 is provided with an accommodation groove 45 to accommodate the second limiter 46 connected to the rotating outer shell 41. The second limiter 46 performs lateral limiting on the gear rack 43 to avoid tipping over while ensuring rotation. The fixing plate 44 on the gear rack 43 limits the second limiter 46 so that the gear rack 43 can be clamped on the second limiter 46. The first limiter 42 is connected to the rotating wheel 422 through the connecting shaft rod 421. The rotating wheel 422 is in contact with the gear rack 43 and rotates as the gear rack 43 rotates. The entire rotating mechanism 4 operates in coordination to achieve stable rotation and cooperate with the rotation drive 5 to drive the round tube to rotate.

[0038] The driving gear 47 is provided on the second rotating shaft device 51 and the third rotating device 52, and the driving gear 47 meshes with the gear rack 43.

[0039] Please refer to Figures 1-7, the present invention provides a technical solution: a clamping and positioning device for round tubes of different sizes, including a base 1. The base 1 is used to carry and support the rest of the structure to ensure that the device can be stably connected. It also includes: a clamping drive 2 provided on the base 1. The clamping drive 2 is used to drive the clamping structure 3, so as to ensure that the clamping structure 3 can clamp the workpiece. The clamping drive 2 is used to drive the clamping structure 3. The clamping structure 3 is provided at one end of the clamping drive 2. The clamping structure 3 can clamp round workpieces of different sizes, fix the workpiece, and ensure that it will not rotate. It is used to clamp the workpiece; a rotating mechanism 4 is provided on the clamping structure 3. The rotating mechanism 4 is used to drive the workpiece to rotate, ensuring that it can be automatically turned over during construction. The rotating mechanism 4 rotates the workpiece to ensure that the workpiece can be automatically turned over during processing, so that manual turning is not required. A rotating drive 5 is provided on the rotating mechanism 4. The rotating drive 5 is used to drive the rotating mechanism 4 to rotate, thereby driving the workpiece to rotate. The rotating drive 5 is used to drive the rotating mechanism 4 to make it rotate; the clamping drive 2 clamps and fixes the workpiece rotated by the rotating mechanism 4.

[0040] The clamping drive 2 includes a clamping motor 21. The clamping motor 21 is used to drive the clamping structure 3. The clamping motor 21 is a rotating motor. A first shaft coupler 22 is provided on the clamping motor 21. The first shaft coupler 22 is used to change the transmission direction of the clamping motor 21, so as to drive a drive rod 23 perpendicular to the clamping motor 21. The advantage of the first shaft coupler 22 is to reduce the occupied area of the device and effectively change the size of the device. A drive rod 23 is provided on the first shaft coupler 22. The drive rod 23 is used to drive a threaded rod 34 to rotate, thereby making a lateral movement. The drive rod 23 is connected to the clamping structure 3 to ensure that the driving force of the clamping motor 21 can be transmitted to the clamping structure 3. The first shaft coupler 22 is used to change the driving direction of the clamping motor 21.

[0041] The clamping motor 21, as a rotary motor, outputs power after startup. Its power is first transmitted to the connected first shaft coupler 22. The first shaft coupler 22 plays a crucial role. It changes the transmission direction of the clamping motor 21, converting the original rotational force along the motor axis into the power to drive the movement of the drive rod 23 perpendicular to the motor. This design not only effectively reduces the occupied area of the device and optimizes the device size but also provides a reasonable conversion of the force direction for subsequent driving actions. Driven by the first shaft coupler 22, the drive rod 23 starts to rotate. Since the drive rod 23 is connected to the clamping structure 3, it transmits the driving force of the clamping motor 21 to the clamping structure 3. In the clamping structure 3, the rotation of the drive rod 23 is further used to drive the rotation of the threaded rod 34. The rotation of the threaded rod 34 is converted into a lateral movement, and through this lateral movement, the adjustment of the clamping structure 3 is realized, and then the clamping operation of round tubes of different sizes is achieved, ensuring that the entire clamping drive 2 system can work stably and efficiently to meet the clamping requirements in round tube processing.

[0042] The clamping structure 3 includes a connecting plate 32 connected to the clamping drive 2. The connecting plate 32 is used to connect the clamping drive 2 and the clamping structure 3, enabling the threaded rod 34 to be driven by the clamping motor 21 to rotate. The connecting plate 32 is provided on the vertical sealing plate 31. The vertical sealing plate 31 is provided with an anti-slip pad 36. The anti-slip pad 36 is used to contact and clamp the workpiece, thereby enhancing the friction between the vertical sealing plate 31 and the workpiece and ensuring that the workpiece can be stably clamped and fixed by the vertical sealing plate 31. There are at least two vertical sealing plates 31. The two move inward together to achieve the effect of clamping the workpiece. They are arranged in a mirror-image opposition, and the movement is also in a mirror-image movement. The threaded rod 34 is also provided in the vertical sealing plate 31. The rotation of the threaded rod 34 can drive the two vertical sealing plates 31 to move. A connector 35 is provided in the middle section of the threaded rod 34. Both ends of the connector 35 are connected to two threaded rods 34 with the same size and opposite threads, so as to control the two vertical sealing plates 31 thereon to achieve the effect of relative movement. The other end of the connector 35 is provided with another section of the threaded rod 34, and the threads of the two ends of the threaded rod 34 are opposite, so that the vertical sealing plates 31 can move relatively horizontally. The two vertical sealing plates 31 are respectively provided on the two threaded rods 34. Only in this way will the rotation of the threaded rod 34 drive the vertical sealing plates 31 to move. The vertical sealing plates 31 are provided on the horizontal sealing plate 33. A limiting plate 37 is provided in the horizontal sealing plate 33. The limiting plate 37 is used to limit and fix the vertical sealing plates 31 to prevent the vertical sealing plates 31 from detaching from the horizontal sealing plate 33. A clamping connector 38 is provided on the vertical sealing plate 31. The clamping connector 38 is clamped on the limiting plate 37 to ensure that the vertical sealing plates 31 will not detach, and the clamping connector 38 is clamped on the limiting plate 37 to limit it.

[0043] When the clamping structure 3 is working, the connecting plate 32 connects the clamping drive 2 and the clamping structure 3, enabling the clamping motor 21 to drive the threaded rod 34 to rotate. In the middle section of the threaded rod 34, there is a connector 35, and at both ends, there is a threaded rod 34 with the same size but opposite threads. Two vertical sealing plates 31 are respectively arranged on these two threaded rods 34. When the threaded rod 34 rotates, due to the reverse threads, it drives the two vertically arranged sealing plates 31, which are mirror - oppositely arranged, to move relatively horizontally. The anti - slip pads 36 on the vertical sealing plates 31 increase the friction with the workpiece, ensuring stable clamping. The vertical sealing plates 31 are installed on the horizontal sealing plates 33, and the limiting plates 37 in the horizontal sealing plates 33 cooperate with the connectors 38 on the vertical sealing plates 31 to prevent the vertical sealing plates 31 from detaching from the horizontal sealing plates 33, ensuring the stable operation of the entire clamping structure 3 and achieving effective clamping of round tubes with different sizes.

[0044] The rotation drive 5 includes a rotation motor 53 arranged on the base 1. The rotation motor 53 is used to drive the rotation mechanism 4 so that it can rotate. The rotation motor 53 is connected with a second rotating device 51 and a third rotating device 52. The second rotating device 51 and the third rotating device 52 are used to transmit the rotational driving force of the rotation motor 53, and the principle is the same as that of the first rotating device 22. The second rotating device 51 and the rotation motor 53 are used to change the driving of the rotation motor 53. The second rotating device 51 and the third rotating device 52 are respectively provided with rotating shaft connectors 54. The rotating shaft connectors 54 are used to fix the second rotating device 51 and the third rotating device 52 on the rotation mechanism 4, thereby ensuring that they will not detach during operation. The rotating shaft connectors 54 are used to connect the rotation drive 5 and the rotation mechanism 4 to ensure the stability of the connection and prevent accidents caused by accidental detachment and injury to personnel.

[0045] When the rotation drive 5 is working, the rotation motor 53 installed on the base 1 starts and outputs rotational driving force. The second rotating device 51 and the third rotating device 52 connected to the rotation motor 53, like the first rotating device 22, are responsible for transmitting the driving force of the rotation motor 53. The second rotating device 51 can also change the driving direction of the rotation motor 53 to meet the operation requirements of the device. The second rotating device 51 and the third rotating device 52 are respectively provided with rotating shaft connectors 54. Through the rotating shaft connectors 54, they are fixed on the rotation mechanism 4, ensuring the stability of the connection between the rotation drive 5 and the rotation mechanism 4, preventing detachment during operation, and avoiding accidents. In this way, the power of the rotation motor 53 is transmitted to the rotation mechanism 4 through the second rotating device 51 and the third rotating device 52, driving it to rotate, and then realizing the rotation operation of the round tube to meet the rotation requirements during the processing of the round tube.

[0046] The rotating mechanism 4 includes a rotating housing 41 provided on the clamping structure 3. The rotating housing 41 can fixedly hold structures such as the carrier plate 48 to protect them. The carrier plate 48 is provided in the rotating housing 41. The carrier plate 48 serves as a support for the device and is used to carry the rest of the mechanisms. A gear rack 43 is connected to the carrier plate 48. The gear rack 43 rotates under the influence of the driving gear 47. A first limiter 42 is also provided on the rotating housing 41. The first limiter 42 mainly limits the outside of the gear rack 43 to prevent the gear rack 43 from accidentally disengaging outward, and the first limiter 42 does not affect the rotation of the gear rack 43. The first limiter 42 limits the gear rack 43. A receiving groove 45 is formed in the gear rack 43 to receive the second limiter 46, enabling the second limiter 46 to limit the gear rack 43 within the receiving groove 45. The second limiter 46 connected to the rotating housing 41 is provided in the receiving groove 45. The second limiter 46 can limit the gear rack 43 laterally to prevent the gear rack 43 from tipping over and can also ensure the rotation of the gear rack 43. A fixing plate 44 is provided on the gear rack 43 to limit the second limiter 46, enabling the gear rack 43 to be clamped on the second limiter 46 for limiting the second limiter 46. The second limiter 46 and the first limiter 42 have the same shape. A connecting shaft rod 421 is provided on the first limiter 42. The connecting shaft rod 421 is used to connect the rotating wheel 422, enabling the rotating wheel 422 to rotate when contacting the gear rack 43. One end of the connecting shaft rod 421 is connected to the rotating wheel 422, and the rotating wheel 422 contacts the gear rack 43.

[0047] The rotating mechanism 4 is installed on the clamping structure 3, and its rotating housing 41 fixedly holds structures such as the carrier plate 48. The carrier plate 48 carries the rest of the mechanisms, and the gear rack 43 connected to it starts to rotate under the action of the driving gear 47. The first limiter 42 on the rotating housing 41 limits the outside of the gear rack 43 to prevent it from disengaging outward without affecting the rotation. The gear rack 43 is provided with a receiving groove 45 to accommodate the second limiter 46 connected to the rotating housing 41. The second limiter 46 limits the gear rack 43 laterally to avoid tipping over while ensuring rotation. The fixing plate 44 on the gear rack 43 limits the second limiter 46, enabling the gear rack 43 to be clamped on the second limiter 46. The first limiter 42 is connected to the rotating wheel 422 through the connecting shaft rod 421. The rotating wheel 422 contacts the gear rack 43 and rotates as the gear rack 43 rotates. The entire rotating mechanism 4 operates in coordination to achieve stable rotation and cooperate with the rotating drive 5 to drive the round tube to rotate.

[0048] The driving gear 47 is provided on the second rotating shaft device 51 and the third rotating device 52, and the driving gear 47 meshes with the gear rack 43.

[0049] When the clamping and positioning device for round tubes of different sizes is in use, the rotating motor 53 is started, and its power is transmitted through the second rotating shaft device 51 and the third rotator 52. The second rotating shaft device 51 also changes the driving direction and is then connected to the rotating mechanism 4 through the rotating shaft connector 54. The rotating housing 41 of the rotating mechanism 4 fixedly bears the bearing plate 48. The bearing plate 48 is connected to the gear bar 43. The power gears 47 on the second rotating shaft device 51 and the third rotator 52 are engaged with the gear bar 43 to drive the gear bar 43 to rotate. The first limiter 42 on the rotating housing 41 limits the outside of the gear bar 43, and the second limiter 46 in the receiving groove 45 of the gear bar 43 limits it laterally. The fixing plate 44 limits the second limiter 46. The runner 422 connected by the connecting shaft rod 421 of the first limiter 42 contacts the gear bar 43 and rotates with it, thereby driving the round tube to rotate, realizing the clamping, positioning and rotating operations of round tubes of different sizes. The clamping motor 21 is started, and the power changes direction through the first rotating shaft device 22 to drive the driving rod 23 to rotate. The driving rod 23 is connected to the clamping structure 3 and drives the threaded rod 34, so that the threaded rod 34 drives two threaded rods with opposite threads through the connector 35, causing the vertically sealed plates 31 arranged in mirror opposition to move laterally relative to each other. The anti-slip pads 36 on the vertically sealed plates 31 increase the friction with the round tube to achieve clamping.

[0050] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A clamping and positioning device for round tubes of different sizes, comprising a base (1), characterized in that: Also includes: A clamping drive (2) disposed on the base (1), the clamping drive (2) being used to drive a clamping structure (3), the clamping structure (3) being disposed at one end of the clamping drive (2) and being used to clamp a workpiece; The clamping structure (3) is provided with a rotating mechanism (4), and the rotating mechanism (4) rotates the workpiece. The rotating mechanism (4) is provided with a rotating drive (5), and the rotating drive (5) is used to drive the rotating mechanism (4) to rotate. The clamping drive (2) clamps and fixes the workpiece that is driven to rotate by the rotating mechanism (4).

2. A clamping and positioning device for round tubes of different sizes according to claim 1, characterized in that: The clamping drive (2) comprises a clamping motor (21), a first rotating shaft (22) is provided on the clamping motor (21), a driving rod (23) is provided on the first rotating shaft (22), the driving rod (23) is connected to the clamping structure (3), and the first rotating shaft (22) is used to change the driving direction of the clamping motor (21).

3. A clamping and positioning device for round tubes of different sizes according to claim 1 or 2, characterized in that: The clamping structure (3) comprises a connecting plate (32) connected to the clamping drive (2), and the connecting plate (32) is arranged on the vertical sealing plate (31).

4. The clamping and positioning device for round tubes of different sizes according to claim 3 is characterized in that: The vertical sealing plate (31) is provided with an anti-slip pad (36). There are at least two vertical sealing plates (31) which are arranged in a mirror-image manner. The vertical sealing plates (31) are also provided with a threaded rod (34).

5. The clamping and positioning device for round tubes of different sizes according to claim 4 is characterized in that: A connector (35) is provided in the middle section of the threaded rod (34), and another section of the threaded rod (34) is provided at the other end of the connector (35). The threads of the threaded rods (34) at both ends are opposite, and the two vertical sealing plates (31) are respectively provided on the two threaded rods (34).

6. A clamping and positioning device for round tubes of different sizes according to any one of claims 3 to 5, characterized in that: The vertical sealing plate (31) is arranged on the horizontal sealing plate (33), a limiting plate (37) is arranged in the horizontal sealing plate (33), and a clamping device (38) is arranged on the vertical sealing plate (31), and the clamping device (38) is clamped on the limiting plate (37) to limit its position.

7. The clamping and positioning device for round tubes of different sizes according to claim 1, characterized in that: The rotary drive (5) comprises a rotary motor (53) arranged on the base (1), the rotary motor (53) being connected with a second rotating shaft (51) and a third rotator (52), the second rotating shaft (51) and the rotary motor (53) being used to change the driving of the rotary motor (53), the second rotating shaft (51) and the third rotator (52) being respectively provided with a rotary shaft connector (54), the rotary shaft connector (54) being used to connect the rotary drive (5) and the rotary mechanism (4).

8. The clamping and positioning device for round tubes of different sizes according to claim 7, characterized in that: The rotating mechanism (4) comprises a rotating shell (41) arranged on the clamping structure (3), a bearing plate (48) being arranged in the rotating shell (41), a gear bar (43) being connected to the bearing plate (48), a first limiter (42) being arranged on the rotating shell (41), the first limiter (42) limiting the position of the gear bar (43), a receiving groove (45) being arranged in the receiving groove (45), and a second limiter (46) connected to the rotating shell (41) being arranged in the rotating shell (41).

9. The clamping and positioning device for round tubes of different sizes according to claim 8, characterized in that: The gear bar (43) is provided with a fixing plate (44) for limiting the second limiter (46); the second limiter (46) and the first limiter (42) have the same shape; the first limiter (42) is provided with a connecting shaft (421); one end of the connecting shaft (421) is connected to a rotating wheel (422); the rotating wheel (422) is in contact with the gear bar (43).

10. The clamping and positioning device for round tubes of different sizes according to claim 8, characterized in that: The second rotating shaft device (51) and the third rotating device (52) are provided with a power gear (47), and the power gear (47) is meshed with the gear bar (43).

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