A roller sleeve inner hole processing production line

Abstract

The present application relates to the technical field of roller sleeve inner hole processing equipment, and in particular to a roller sleeve inner hole processing production line, which includes a feeding conveyor belt; a feeding conveyor belt; a processing center, and the processing center includes a control device, a clamping robot, a rotary positioning tool, a welding robot and a roller sleeve detection device. The clamping robot is used to transfer the roller sleeve from the feeding conveyor belt to the rotary positioning tool, and is also used to transfer the roller sleeve at the rotary positioning tool to the feeding conveyor belt. The rotary positioning tool is used to position the roller sleeve and drive the roller sleeve to rotate around its own axis. The welding robot is used to perform surfacing welding on the inner surface of the roller sleeve located at the rotary positioning tool. The roller sleeve detection device is used to detect the position of the roller sleeve located at the rotary positioning tool and the position of the roller sleeve keyway, and control the working state of the welding robot according to the detection result. The present application has the effect of realizing automated processing.

Description

Technical Field

[0001] The present application relates to the technical field of roller sleeve inner hole processing equipment, and in particular to a roller sleeve inner hole processing production line. Background Art

[0002] In modern manufacturing, especially for the maintenance and manufacturing of large-scale mechanical equipment, roller sleeve inner hole repair is a common process. Traditional repair methods usually rely on manual welding, which is not only inefficient but also difficult to ensure welding quality. With the development of automation technology, robot welding production lines have gradually become an effective means to improve production efficiency and welding quality. This type of production line can achieve efficient and precise welding of roller sleeve inner holes, significantly improving production efficiency and product quality, and reducing labor costs.

[0003] In order to realize the automated welding of the inner hole of the roller sleeve, the commonly used solutions include but are not limited to the following: First, a fixed welding workbench is used for manual welding. This solution has low production efficiency due to the need for frequent manual intervention. Second, a semi-automated welding production line is used to deliver the roller sleeve to the welding area through a simple conveying device, and a welding robot is used to work together. This method improves production efficiency to a certain extent, but there are still problems such as low automation, inaccurate positioning, and insufficient welding accuracy. Moreover, when processing roller sleeves with keyways, it is often necessary to frequently adjust equipment parameters, resulting in poor flexibility of the production line. Summary of the invention

[0004] In order to realize automated processing, the present application provides a roller sleeve inner hole processing production line.

[0005] The present application provides a roller sleeve inner hole processing production line adopting the following technical solution:

[0006] A roller sleeve inner hole processing production line comprises a loading conveyor belt, the loading conveyor belt is arranged along a first direction; a unloading conveyor belt, the unloading conveyor belt is arranged at one end of the loading conveyor belt and is arranged in line with the loading conveyor belt; a machining center, the machining center is arranged between the loading conveyor belt and the unloading conveyor belt, the machining center comprises a control device, a clamping robot, a rotary positioning tool, a welding robot and a roller sleeve detection device, the clamping robot is connected to the control device by signal, the clamping robot is used to transfer the roller sleeve from the loading conveyor belt to the rotary positioning tool, and is also used to transfer the rotary positioning tool to the roller sleeve. The roller sleeve at the positioning tool is transferred to the unloading conveyor belt, the rotary positioning tool is used to position the roller sleeve and drive the roller sleeve to rotate around its own axis direction, there are two welding robots, and the welding robots are respectively arranged at both ends of the rotary positioning tool, and the welding robot is used to perform surfacing welding on the inner surface of the roller sleeve located at the rotary positioning tool, the roller sleeve detection device is connected with the welding robot signal, and the roller sleeve detection device is used to detect the position of the roller sleeve located at the rotary positioning tool and the position of the roller sleeve keyway, and control the working state of the welding robot according to the detection result.

[0007] By adopting the above technical solution, the automated processing of roller sleeves is realized. The clamping robot is responsible for transferring the roller sleeve from the feeding conveyor belt to the rotary positioning fixture, and transferring the processed roller sleeve to the unloading conveyor belt. The rotary positioning fixture accurately positions the roller sleeve and drives it to rotate, and the welding robot performs surfacing welding on the inner surface of the roller sleeve. The roller sleeve detection device detects the position of the roller sleeve and controls the working state of the welding robot to ensure the processing quality, so that the welding robot can effectively avoid the keyway of the roller sleeve during the processing. The entire production line improves processing efficiency and accuracy, reduces labor costs, and realizes automated production.

[0008] Optionally, the loading conveyor belt and the unloading conveyor belt are both step conveyor belts, the step conveyor belts are set at an angle to the horizontal direction, and the step conveyor belts are provided with a plurality of limiting edges, and the limiting edges are all set along a second direction perpendicular to the first direction.

[0009] By adopting the above technical solution, the inclined step conveyor belt enables the roller sleeve to have a tendency to roll along the surface of the conveyor belt, so that the roller sleeve can be close to the limiting edge, and then the limiting edge can accurately control the position of the material during the operation of the step conveyor belt, thereby improving the positioning accuracy and transmission efficiency of the material.

[0010] Optionally, a pressure sensor is provided between any two adjacent groups of the limiting edges, and the pressure sensor is simultaneously connected to the control device and the stepping conveyor belt signal.

[0011] By adopting the above technical solution, a pressure sensor is set between any two adjacent groups of limit edges, and the pressure sensor is connected to the control device and the stepping conveyor belt signal. The pressure sensor can be used to monitor in real time whether the roller sleeve is grasped by the clamping robot, thereby adjusting the position of the roller sleeve during the transmission process by controlling the stepping conveyor belt to ensure precise control of the roller sleeve on the stepping conveyor belt.

[0012] Optionally, the rotary positioning tooling includes a fixed seat, and two power rollers are provided on the top of the fixed seat. The power rollers are arranged parallel to each other in the same horizontal plane, the power rollers are perpendicular to the first direction, and the power rollers are connected to the control device by signal.

[0013] By adopting the above technical solution, the rotary positioning tool realizes the rotary positioning of the workpiece through the two power rollers arranged on the top of the fixed seat. The power rollers are parallel and located in the same horizontal plane, perpendicular to the first direction, ensuring the stability of the workpiece during the rotation process. The power rollers are connected to the signal of the control device, so that the rotation action of the tool can be accurately controlled, improving the stability of the workpiece positioning.

[0014] Optionally, the clamping robot includes a gripper, a gantry track, a rail car and a lifting mechanism, the gantry track is arranged above the rotation positioning tooling along the first direction, the lifting mechanism is arranged at the bottom of the rail car along the vertical direction, and the gripper is arranged at the output end of the lifting mechanism.

[0015] By adopting the above technical solution, the setting of the gantry track enables the lifting mechanism to move back and forth in the first direction, thereby realizing the transfer of the lifting mechanism between the loading conveyor belt, the unloading conveyor belt and the rotary positioning tooling. The lifting mechanism enables the gripper to move in the vertical direction, thereby realizing the clamping and transfer of the roller sleeve.

[0016] Optionally, the gripper includes a pneumatic control box and two pneumatic fingers, the pneumatic control box is used to control the two pneumatic fingers to open or close with each other, the pneumatic control box is fixedly connected to the output end of the lifting mechanism, a clamping assembly is provided between the pneumatic fingers, the clamping assembly includes a clamping wheel, when the pneumatic control box controls the pneumatic fingers to open, the clamping wheel moves downward in a vertical direction, and when the pneumatic control box controls the pneumatic fingers to close, the clamping wheel moves upward in a vertical direction.

[0017] By adopting the above technical solution, the pneumatic control box is responsible for controlling the opening and closing of the two pneumatic fingers. A clamping assembly is arranged between the pneumatic fingers, and the clamping assembly includes a clamping wheel. When the pneumatic control box instructs the pneumatic fingers to open, the roller sleeve is released to the rotary positioning fixture, and the clamping wheel moves downward and contacts the roller sleeve, so that the roller sleeve and the rotary positioning fixture are closely matched; conversely, when the pneumatic fingers are closed, the clamping wheel moves upward and away from the roller sleeve, so that the pneumatic fingers can grasp the roller sleeve.

[0018] Optionally, the clamping assembly also includes a vertical movable shaft, a lifting control shaft, a vertical movable seat, a hinged plate, a limit slide rail and a limit slider. The vertical movable seat is arranged along the vertical direction, the clamping wheel is arranged at the bottom of the vertical movable seat, and the vertical movable shaft is arranged at the top of the vertical movable seat. The number of the lifting control shafts is two, and they are respectively arranged on the side close to the two pneumatic fingers and are located below the vertical movable shaft. The number of the hinged plates is two, one end of the two hinged plates are hingedly connected to the vertical movable shaft, and the other ends of the two hinged plates are respectively hingedly connected to the lifting control shaft. The limit slide rail is arranged on the vertical movable seat along the vertical direction, and the limit slider is fixedly connected to the starting control box and is slidably connected to the limit slide rail.

[0019] By adopting the above technical solution, during the process of the pneumatic fingers opening, the pneumatic fingers will rotate around their hinge points. Since the lifting control shaft is provided on the side where the two pneumatic fingers are close to each other, when the two pneumatic fingers are separated, their rotational movement will be transmitted to the lifting control shaft, causing the lifting control shafts to move away from each other and rise. Because the vertical moving seat is connected to the vertical moving shaft through a hinge plate, this action will cause the vertical moving seat to produce a certain displacement or tilt. At the same time, the setting of the limit slide rail and the limit slider ensures that the movement of the vertical moving seat in the vertical direction is controlled to prevent tilting, and ensures that the vertical moving seat can only move in the vertical direction. The same is true when the pneumatic fingers are close to each other. Through this design, it can be ensured that when the pneumatic fingers are opened or closed, the movement of the vertical moving seat is properly guided and restricted, thereby achieving a follow-up effect between the clamping wheel and the pneumatic fingers.

[0020] Optionally, the roller sleeve detection device includes a fixed rod, a CCD camera and a position sensor, the fixed rod is arranged at one end of the rotation positioning tooling, the CCD camera and the position sensor are both connected to the fixed rod and arranged toward the rotation positioning tooling, the CCD camera is used to detect the position of the keyway of the roller sleeve, and the position sensor is used to detect the position between the roller sleeve and the welding robot, and the CCD camera and the position sensor are both connected to the control device signal.

[0021] By adopting the above technical solutions, the CCD camera can accurately capture the keyway position information, while the position sensor ensures the distance between the roller sleeve and the welding robot. The signal connection between these components and the control device makes the entire inspection process automated and efficient, improving production efficiency and welding quality.

[0022] Optionally, the machining center also includes a safety fence, and the clamping robot, the rotary positioning tooling, the welding robot and the roller sleeve detection device are all arranged in the safety fence. The safety fence is provided with a conveying gate for the loading conveyor belt and the unloading conveyor belt to pass through.

[0023] By adopting the above technical solution, the safety guardrail ensures the safety of operators while allowing smooth passage of the loading and unloading conveyor belts, further improving the continuity and safety of production.

[0024] Optionally, a control cabinet and a control panel are provided on the safety guardrail, the control device is arranged in the control cabinet, and the control panel is signal-connected to the control device.

[0025] By adopting the above technical solution, the protection of the control device is achieved, and at the same time a window for manual operation and inspection is provided, thereby improving the operational convenience and safety of the system.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. The clamping robot is responsible for transferring the roller sleeve from the feeding conveyor belt to the rotary positioning tooling, and transferring the processed roller sleeve to the unloading conveyor belt. The rotary positioning tooling accurately positions the roller sleeve and drives it to rotate. The welding robot performs surfacing welding on the inner surface of the roller sleeve. The roller sleeve detection device detects the position of the roller sleeve and controls the working state of the welding robot to ensure the processing quality. The welding robot can effectively avoid the keyway of the roller sleeve during the processing, thereby improving the processing efficiency and accuracy, reducing labor costs, and realizing automated production;

[0028] 2. The power roller and the clamping wheel ensure the stable rotation and high-precision positioning of the roller sleeve during the welding process, effectively solving the welding quality problem caused by the unstable rotation of the roller sleeve in the prior art, and improving the flatness of the welding pool and the consistency of the welding depth;

[0029] 3. Multiple sets of limit edges, pressure sensors and clamping robots are used to ensure the accurate position of the roller sleeves on the loading and unloading conveyor belts, realizing automatic loading and unloading of roller sleeves, greatly reducing manual intervention, and improving production efficiency and the overall automation level of the production line;

[0030] 4. The CCD camera and position sensor are used to obtain the position information of the roller sleeve and its keyway, and the working state of the welding robot can be controlled according to the position information, so that the starting position of the two welding robots corresponds to the position of the two end faces of the roller sleeve, so that the two welding robots can gradually perform surfacing operations from both ends of the roller sleeve to the inside, and avoid the keyway during the surfacing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the structure of the roller sleeve inner hole processing production line provided in an embodiment of the present application.

[0032] Figure 2 It is a schematic diagram of the structure of the roller sleeve inner hole processing production line provided in an embodiment of the present application (the safety guardrail is not shown).

[0033] Figure 3 yes Figure 2 A partial enlarged view of point A in the middle.

[0034] Explanation of the reference numerals: 1-loading conveyor belt; 2-unloading conveyor belt; 3-limiting edge; 4-clamping robot; 401-gripper; 4011-pneumatic control box; 4012-pneumatic finger; 402-gantry track; 403-track car; 404-lifting mechanism; 405-clamping assembly; 4051-clamping wheel; 4052-vertical moving shaft; 4053-vertical moving seat; 4054-hinge plate; 4055-limiting slide rail; 4056-limiting slide block; 5-rotational positioning tooling; 501-fixed seat; 502-power roller; 6-welding robot; 7-roller sleeve detection device; 701-fixed rod; 702-CCD camera; 703-position sensor; 8-safety guardrail; 801-transmission gate; 9-control panel; 10-control cabinet; 11-roller sleeve. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-3 This application is described in further detail.

[0036] The embodiment of the present application discloses a roller sleeve inner hole processing production line.

[0037] like Figure 1-Figure 2As shown, the roller sleeve inner hole processing production line includes a feeding conveyor belt 1, which is arranged along a first direction; a feeding conveyor belt 2, which is arranged at one end of the feeding conveyor belt 1 and is arranged in line with the feeding conveyor belt 1; a machining center, which is arranged between the feeding conveyor belt 1 and the feeding conveyor belt 2, and includes a control device, a clamping robot 4, a rotation positioning tool 5, a welding robot 6 and a roller sleeve detection device 7. The clamping robot 4 is connected to the control device by signal. The clamping robot 4 is used to transfer the roller sleeve 11 from the feeding conveyor belt 1 to the rotation positioning tool 5, and is also used to The roller sleeve 11 at the rotary positioning tooling 5 is transferred to the unloading conveyor belt 2. The rotary positioning tooling 5 is used to position the roller sleeve 11 and drive the roller sleeve 11 to rotate around its own axis. There are two welding robots 6, which are respectively arranged at both ends of the rotary positioning tooling 5. The welding robot 6 is used to perform surfacing welding on the inner surface of the roller sleeve 11 located at the rotary positioning tooling 5. The roller sleeve detection device 7 is connected to the welding robot 6 by signal. The roller sleeve detection device 7 is used to detect the position of the roller sleeve 11 located at the rotary positioning tooling 5, and control the working state of the welding robot 6 according to the detection result.

[0038] The clamping robot 4 is responsible for transferring the roller sleeve 11 from the feeding conveyor belt 1 to the rotary positioning fixture 5, and is responsible for moving the processed roller sleeve 11 to the unloading conveyor belt 2. The rotary positioning fixture 5 accurately positions the roller sleeve 11 and drives it to rotate so that the welding robot 6 can perform surfacing operations on the inner surface of the roller sleeve 11. The roller sleeve detection device 7 is responsible for monitoring the position of the roller sleeve 11 and regulating the operating state of the welding robot 6 to ensure the processing quality. At the same time, the roller sleeve detection device 7 can also ensure that the welding robot 6 can effectively avoid the keyway of the roller sleeve 11 during the processing. Through the coordinated work of this series of automated equipment, the processing efficiency and accuracy of the entire production line have been significantly improved, while the labor cost has been significantly reduced, and the automation of the production process has been realized.

[0039] like Figure 1-Figure 2 As shown, specifically, the loading conveyor belt 1 and the unloading conveyor belt 2 are both stepping conveyor belts, which are set at an angle to the horizontal direction. A plurality of groups of limiting edges 3 are provided on the stepping conveyor belts, and each group of limiting edges 3 is set along a second direction perpendicular to the first direction.

[0040] The inclined step-by-step conveyor belt causes the roller sleeve 11 to roll along the conveyor belt surface, thereby ensuring that the roller sleeve 11 is closely attached to the limiting edge 3. This mechanism enables the limiting edge 3 to accurately control the material position during the operation of the step-by-step conveyor belt, thereby improving the material positioning accuracy and conveying efficiency.

[0041] In order to detect the existence status of the roller sleeve 11 between the limiting edges 3, pressure sensors are provided between any two adjacent groups of limiting edges 3, and the pressure sensors are simultaneously connected to the control device and the stepping conveyor belt signal.

[0042] A pressure sensor is arranged between any two adjacent groups of limiting edges 3, and the pressure sensor is connected to the control device and the signal system of the stepping conveyor. Through the real-time monitoring function of the pressure sensor, it is possible to accurately detect whether the roller sleeve 11 has been successfully grasped by the clamping robot 4. Based on this detection result, the control device can timely control the stepping conveyor to ensure that the position of the roller sleeve 11 during the conveying process is accurately controlled.

[0043] like Figure 1-Figure 2 As shown, the welding robot 6 has a radius of 1.4 meters, a digital 350A welding power source, a mechanical arm, a Chinese programming teaching device, an anti-collision sensor, and a water-cooled welding gun. Since the welding robot 6 is a common technical means in the relevant technology, its specific structure is not described here.

[0044] like Figure 2-Figure 3 As shown, the rotary positioning tool 5 includes a fixed seat 501, and two power rollers 502 are arranged on the top of the fixed seat 501. The power rollers 502 are arranged parallel to each other in the same horizontal plane, and the power rollers 502 are perpendicular to the first direction. The power rollers 502 are connected to the control device signal.

[0045] The rotary positioning tool 5 realizes the rotation positioning of the workpiece through two power rollers 502 configured on the top of its fixed seat 501. The power rollers 502 are parallel and coexist in the same horizontal plane, perpendicular to the first direction, thereby ensuring the stability of the workpiece during the rotation process. The power rollers 502 are connected to the signal of the control device, so that the rotation action of the tool can be accurately controlled, thereby improving the stability of the workpiece positioning.

[0046] In this embodiment, the power roller 502 is φ150 mm, and the center distance between the two power rollers 502 is 500 mm, which is suitable for the positioning and rotation of the roller sleeve 11 with a diameter of 200-300 mm. In some other embodiments, the power roller 502 can be φ240 mm, and the center distance between the two power rollers 502 is 500 mm, which is suitable for the installation and rotation of the roller sleeve 11 with a diameter of 150-185 mm. The specific parameters of the power roller 502 can be set according to actual processing needs, and this application does not limit this.

[0047] like Figure 2-Figure 3As shown, the clamping robot 4 includes a gripper 401, a gantry track 402, a rail car 403 and a lifting mechanism 404. The gantry track 402 is arranged above the rotating positioning tooling 5 along a first direction, and the lifting mechanism 404 is arranged at the bottom of the rail car 403 along a vertical direction. In this embodiment, the lifting mechanism 404 is a hydraulic cylinder. In some other embodiments, the lifting mechanism 404 can also be a cylinder or an electric push rod. The gripper 401 is arranged at the output end of the lifting mechanism 404. The gripper 401 includes a pneumatic control box 4011 and two pneumatic fingers 4012. The pneumatic control box 4011 is used to control the two pneumatic fingers 4012 to open or close with each other. The pneumatic control box 4011 is fixedly connected to the output end of the lifting mechanism 404. A clamping assembly 405 is provided between the pneumatic fingers 4012. The clamping assembly 405 includes a clamping wheel 4051. When the pneumatic control box 4011 controls the pneumatic fingers 4012 to open, the clamping wheel 4051 moves downward in the vertical direction. When the pneumatic control box 4011 controls the pneumatic fingers 4012 to close, the clamping wheel 4051 moves upward in the vertical direction.

[0048] The configuration of the gantry track 402 allows the lifting mechanism 404 to reciprocate in the first direction, thereby realizing the transfer of the lifting mechanism 404 between the loading conveyor belt 1, the unloading conveyor belt 2 and the rotary positioning tooling 5. The lifting mechanism 404 enables the gripper 401 to move in the vertical direction, thereby realizing the clamping and transfer of the roller sleeve 11. The pneumatic control box 4011 is responsible for controlling the opening and closing actions of the two pneumatic fingers 4012. A clamping assembly 405 is configured between the pneumatic fingers 4012, and the clamping assembly 405 includes a clamping wheel 4051. When the pneumatic control box 4011 issues a command to open the pneumatic finger 4012, the roller sleeve 11 is released to the rotary positioning tooling 5, and the clamping wheel 4051 moves downward and contacts with the roller sleeve 11, thereby making the roller sleeve 11 and the rotary positioning tooling 5 fit tightly together; conversely, when the pneumatic finger 4012 is closed, the clamping wheel 4051 moves upward and away from the roller sleeve 11, so that the pneumatic finger 4012 can grasp the roller sleeve 11.

[0049] like Figure 2-Figure 3As shown, specifically, the clamping assembly 405 also includes a vertical moving shaft 4052, a lifting control shaft, a vertical moving seat 4053, a hinge plate 4054, a limiting slide rail 4055 and a limiting slider 4056. The vertical moving seat 4053 is arranged in the vertical direction, the clamping wheel 4051 is arranged at the bottom of the vertical moving seat 4053, the vertical moving shaft 4052 is arranged at the top of the vertical moving seat 4053, and the number of lifting control shafts is two, which are respectively arranged on two pneumatic fingers 4053. 12 are close to each other and are located below the vertical moving shaft 4052. There are two hinged plates 4054. One end of the two hinged plates 4054 is hingedly connected to the vertical moving shaft 4052, and the other ends of the two hinged plates 4054 are respectively hingedly connected to the lifting control shaft. The limiting slide rail 4055 is arranged on the vertical moving seat 4053 along the vertical direction. The limiting slider 4056 is fixedly connected to the starting control box and is slidably connected to the limiting slide rail 4055.

[0050] During the opening process of the pneumatic finger 4012, the pneumatic finger 4012 will perform a rotational movement around its hinge point. Since the two pneumatic fingers 4012 are configured with a lifting control shaft on the side close to each other, when the two pneumatic fingers 4012 separate, their rotational movement will be transmitted to the lifting control shaft, causing the lifting control shafts to move away from each other and rise. Since the vertical moving seat 4053 is connected to the vertical moving shaft 4052 through the hinge plate 4054, the movement of the lifting control shaft will cause the vertical moving seat 4053 to produce a specific displacement or tilt. At the same time, the configuration of the limiting slide rail 4055 and the limiting slider 4056 ensures that the movement of the vertical moving seat 4053 in the vertical direction is controlled, avoiding tilting, and ensuring that the vertical moving seat 4053 can only move in the vertical direction. Conversely, when the pneumatic fingers 4012 approach each other, the same principle is followed. Through such a design, it can be ensured that during the opening or closing process of the pneumatic finger 4012, the movement of the vertical movable seat 4053 is guided and restricted, thereby achieving a synchronous movement effect between the clamping wheel 4051 and the pneumatic finger 4012.

[0051] like Figure 1-Figure 2 As shown, the roller sleeve detection device 7 includes a fixed rod 701, a CCD camera 702 and a position sensor 703. The fixed rod 701 is arranged at one end of the rotation positioning tool 5. The CCD camera 702 and the position sensor 703 are both connected to the fixed rod 701 and are arranged toward the rotation positioning tool 5. The CCD camera 702 is used to detect the position of the keyway of the roller sleeve 11. The position sensor 703 is used to detect the position between the roller sleeve 11 and the welding robot 6. The CCD camera 702 and the position sensor 703 are both connected to the control device signal.

[0052] The CCD camera 702 (charge coupled device camera) has the ability to accurately capture the key slot position information, and the position sensor 703 ensures the precise distance between the roller sleeve 11 and the welding robot 6. Since the roller sleeve 11 always keeps rotating during the processing, after the CCD camera 702 determines the key slot position, it can control the start and stop of the welding robot 6 so that it can avoid the key slot during the surfacing process. Since the position of each roller sleeve 11 along the second direction on the feeding conveyor belt 1 is not the same, after the position sensor 703 determines the precise distance between the roller sleeve 11 and the welding robot 6, it can control the starting position of the welding robot 6, so that the starting positions of the two welding robots 6 correspond to the positions of the two end faces of the roller sleeve 11, and then the two welding robots 6 can gradually perform surfacing operations from both ends of the roller sleeve 11 to the inside.

[0053] like Figure 1 As shown, the machining center also includes a safety fence 8, the clamping robot 4, the rotary positioning tool 5, the welding robot 6 and the roller sleeve detection device 7 are all arranged in the safety fence 8, and the gantry track 402 is fixedly connected to the safety fence 8, and the safety fence 8 is provided with a conveying door 801 for the feeding conveyor belt 1 and the unloading conveyor belt 2 to pass through. The safety fence 8 ensures the safety of the operator while allowing the smooth passage of the feeding and unloading conveyor belts 2, further improving the continuity and safety of production.

[0054] Optionally, a control cabinet 10 and a control panel 9 are provided on the safety guardrail 8, the control device is provided in the control cabinet 10, and the control panel 9 is connected to the control device by signal. The control cabinet 10 realizes the protection of the control device, and the control panel 9 provides a window for manual operation and inspection, thereby improving the convenience and safety of the system operation.

[0055] The implementation principle of a roller sleeve inner hole processing production line in the embodiment of the present application is:

[0056] S1. The loading conveyor belt 1 delivers the roller sleeve 11 from the warehouse or the previous process to the processing center.

[0057] S2. The clamping robot 4 grabs the roller sleeve 11 from the feeding conveyor belt 1 and transfers it to the rotary positioning fixture 5: the rail car 403 moves on the gantry track 402 to drive the gripper 401 to the top of the feeding conveyor belt, the pneumatic control box 4011 controls the pneumatic finger 4012 to open, the lifting mechanism 404 drives the gripper 401 to descend, and then the pneumatic control box 4011 controls the pneumatic finger 4012 to close, so as to grasp the roller sleeve 11. After the grasping is completed, the lifting mechanism 404 drives the gripper 401 to rise, the rail car 403 moves on the gantry track 402 to drive the gripper 401 to the top of the rotary positioning fixture 5, the lifting mechanism 404 drives the gripper 401 to descend, and then the pneumatic control box 4011 controls the pneumatic finger 4012 to open, so as to release the roller sleeve 11.

[0058] S3. The rotary positioning fixture 5 precisely positions the roller sleeve 11 and drives the roller sleeve 11 to rotate around its own axis: after the pneumatic finger 4012 is opened, the roller sleeve 11 is released to the rotary positioning fixture 5, and the clamping wheel 4051 moves downward and contacts the roller sleeve 11, so that the roller sleeve 11 and the rotary positioning fixture 5 are tightly matched. After the roller sleeve detection device 7 detects that the roller sleeve 11 is correctly placed on the rotary positioning fixture 5, it sends a signal to the control device, and the control device controls the power roller 502 to start and drive the roller sleeve 11 to rotate around its own axis.

[0059] S4. The roller sleeve detection device 7 detects the position of the roller sleeve 11, and controls the working state of the welding robot 6 according to the detection result. The welding robot 6 performs surfacing operation on the inner surface of the roller sleeve 11 located at the rotating positioning fixture 5: the CCD camera 702 (charge coupled device camera) has the ability to accurately capture the key slot position information, and the position sensor 703 ensures the accurate distance between the roller sleeve 11 and the welding robot 6. Since the roller sleeve 11 always keeps rotating during the processing, after the CCD camera 702 determines the key slot position, it can control the start and stop of the welding robot 6 so that it can avoid the key slot during the surfacing process. Since the position of each roller sleeve 11 along the second direction on the feeding conveyor belt 1 is not the same, after the position sensor 703 determines the accurate distance between the roller sleeve 11 and the welding robot 6, it can control the starting position of the welding robot 6, so that the starting position of the two welding robots 6 corresponds to the position of the two end faces of the roller sleeve 11, and then the two welding robots 6 can gradually perform surfacing operation from both ends of the roller sleeve 11 to the inside.

[0060] S5. After welding is completed, the clamping robot 4 moves the processed roller sleeve 11 to the unloading conveyor belt 2: After the surfacing operation is completed, the power roller 502 stops working, the roller sleeve 11 is stationary, and the pneumatic control box 4011 controls the pneumatic fingers 4012 to close, so as to grasp the roller sleeve 11. After the grasping is completed, the lifting mechanism 404 drives the gripper 401 to rise, and the rail car 403 moves on the gantry track 402 to drive the gripper 401 to the top of the unloading conveyor belt 2, and the lifting mechanism 404 drives the gripper 401 to descend, and then the pneumatic control box 4011 controls the pneumatic fingers 4012 to open, so as to release the roller sleeve 11.

[0061] S6. The unloading conveyor belt 2 delivers the processed roller sleeve 11 to the next process or the finished product area.

[0062] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A roller sleeve inner hole processing production line, used for surfacing welding and repairing the inner surface of a roller sleeve, wherein the roller sleeve has at least one keyway, characterized in that: include: A loading conveyor belt (1), wherein the loading conveyor belt (1) is arranged along a first direction; A material unloading conveyor belt (2), wherein the material unloading conveyor belt (2) is arranged at one end of the material unloading conveyor belt (1) and is arranged in a colinear manner with the material unloading conveyor belt (1); A machining center, the machining center is arranged between the loading conveyor belt (1) and the unloading conveyor belt (2), the machining center comprises a control device, a clamping robot (4), a rotary positioning tool (5), a welding robot (6) and a roller sleeve detection device (7), The clamping robot (4) is connected to the control device by signal. The clamping robot (4) is used to transfer the roller sleeve from the loading conveyor belt (1) to the rotating positioning tool (5), and is also used to transfer the roller sleeve at the rotating positioning tool (5) to the unloading conveyor belt (2). The clamping robot (4) includes a gripper (401), a gantry track (402), a rail car (403) and a lifting mechanism (404). The gantry track (402) is arranged above the rotating positioning tool (5) along the first direction. The lifting mechanism (404) is arranged at the bottom of the rail car (403) along the vertical direction. The gripper (401 ) is arranged at the output end of the lifting mechanism (404), the gripper (401) comprises a pneumatic control box (4011) and two pneumatic fingers (4012), the pneumatic control box (4011) is used to control the two pneumatic fingers (4012) to open or close each other, the pneumatic control box (4011) is fixedly connected to the output end of the lifting mechanism (404), a clamping assembly (405) is arranged between the pneumatic fingers (4012), the clamping assembly (4055) comprises a clamping wheel (4051), when the pneumatic control box (4011) controls the pneumatic fingers (4012) to open, the clamping wheel (4051) moves along the vertical The pneumatic finger (4012) moves downward in the vertical direction. When the pneumatic control box (4011) controls the pneumatic finger (4012) to close, the clamping wheel (4051) moves upward in the vertical direction. The clamping assembly (405) also includes a vertical moving shaft (4052), a lifting control shaft, a vertical moving seat (4053), a hinge plate (4054), a limiting slide rail (4055) and a limiting slider (4056). The vertical moving seat (4053) is arranged in the vertical direction. The clamping wheel (4051) is arranged at the bottom of the vertical moving seat (4053). The vertical moving shaft (4052) is arranged at the top of the vertical moving seat (4053). There are two descending control shafts, which are arranged on the sides close to the two pneumatic fingers (4012) and are located below the vertical moving shaft (4052). There are two hinged plates (4054), one end of each of the two hinged plates (4054) is hingedly connected to the vertical moving shaft (4052), and the other ends of the two hinged plates (4054) are respectively hingedly connected to the lifting control shaft. The limiting slide rail (4055) is arranged on the vertical moving seat (4053) in the vertical direction. The limiting slider (4056) is fixedly connected to the pneumatic control box and is slidably connected to the limiting slide rail (4055). The rotary positioning tool (5) is used to position the roller sleeve and drive the roller sleeve to rotate around its own axis direction. The rotary positioning tool (5) comprises a fixed seat (501). Two power rollers (502) are arranged on the top of the fixed seat (501). The power rollers (502) are arranged parallel to each other on the same horizontal plane. The power rollers (502) are perpendicular to the first direction. The power rollers (502) are connected to the control device by signal. The number of the welding robots (6) is two, and the welding robots (6) are respectively arranged at two ends of the rotating positioning fixture (5). The welding robots (6) are used to perform surfacing welding on the inner surface of the roller sleeve located at the rotating positioning fixture (5). The roller sleeve detection device (7) is connected to the welding robot (6) by signal, and is used to detect the position of the roller sleeve and the position of the roller sleeve keyway located at the rotation positioning tool (5), and control the working state of the welding robot (6) according to the detection result.

2. A roller sleeve inner hole processing production line according to claim 1, characterized in that: The loading conveyor belt (1) and the unloading conveyor belt (2) are both stepping conveyor belts, the stepping conveyor belts are arranged at an angle with the horizontal direction, and a plurality of limiting edges (3) are provided on the stepping conveyor belts, and the limiting edges (3) are all arranged along a second direction perpendicular to the first direction.

3. The roller sleeve inner hole processing production line according to claim 2 is characterized in that: A pressure sensor is provided between any two adjacent groups of the limiting edges (3), and the pressure sensor is simultaneously connected to the control device and the stepping conveyor belt signal.

4. The roller sleeve inner hole processing production line according to claim 1 is characterized in that: The roller sleeve detection device (7) comprises a fixed rod (701), a CCD camera (702) and a position sensor (703); the fixed rod (701) is arranged at one end of the rotation positioning tool (5); the CCD camera (702) and the position sensor (703) are both connected to the fixed rod (701) and are arranged toward the rotation positioning tool (5); the CCD camera (702) is used to detect the position of the keyway of the roller sleeve; the position sensor (703) is used to detect the position between the roller sleeve and the welding robot (6); the CCD camera (702) and the position sensor (703) are both connected to the control device signal.

5. The roller sleeve inner hole processing production line according to claim 1 is characterized in that: The machining center further comprises a safety fence (8), the clamping robot (4), the rotary positioning tool (5), the welding robot (6) and the roller sleeve detection device (7) are all arranged in the safety fence (8), and the safety fence (8) is provided with a conveying gate (801) for the loading conveyor belt (1) and the unloading conveyor belt (2) to pass through.

6. The roller sleeve inner hole processing production line according to claim 5 is characterized in that: A control cabinet (10) and a control panel (9) are provided on the safety guardrail (8); the control device is arranged in the control cabinet (10); and the control panel (9) is signal-connected to the control device.

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