A step chain sleeve inner hole processing device and processing method

Abstract

The present application relates to a step chain sleeve inner hole processing device and processing method, and relates to the technical field of step chain sleeve processing, including a lathe body, a three-jaw chuck, a turning tool, and a driving mechanism. A positioning mandrel is slidably provided on the lathe body, and the sleeve is sleeved on the positioning mandrel for positioning. The lathe body is also provided with a moving mechanism for driving the positioning mandrel to move, and the moving mechanism drives the positioning mandrel to move with the turning tool and keeps a certain distance between the positioning mandrel and the turning tool. The present application supports the inner wall of the sleeve by the positioning mandrel, thereby reducing the probability of deformation of the sleeve due to clamping, and at the same time, the positioning mandrel moves with the turning tool, thereby improving the quality of the chain.

Description

Technical Field

[0001] The present application relates to the technical field of step chain sleeve processing, and in particular to a step chain sleeve inner hole processing device and processing method. Background Art

[0002] The escalator step chain is a connecting component used to connect the drive wheel and the escalator. It is installed on both sides of the escalator and plays an important role in the movement of the escalator.

[0003] In the step chain, the step pin and the inner hole of the step sleeve need to be interference fit. In the prior art, the inner hole of the sleeve is generally processed by a CNC lathe. During the sleeve processing, a three-jaw chuck is used to clamp the outer wall of the sleeve. However, the sleeve is a thin-walled, slender tubular structure. Therefore, the three-jaw chuck clamping the sleeve easily causes the sleeve to be deformed. At the same time, the sleeve is prone to jumping when it is rotated for cutting, thereby reducing the processing accuracy of the sleeve, resulting in poor fit between the pin and the inner hole of the sleeve, and even the sleeve cracking after the interference fit, thereby reducing the quality of the chain. Summary of the invention

[0004] In order to improve the quality of the chain, the present application provides a step chain sleeve inner hole processing device and processing method.

[0005] In the first aspect, the present application provides a step chain sleeve inner hole processing device, which adopts the following technical solution:

[0006] A step chain sleeve inner hole processing device comprises a lathe body, a three-jaw chuck rotatably mounted on the lathe body and used for clamping the sleeve, a turning tool slidably arranged on the lathe body, and a driving mechanism for driving the turning tool to move. A positioning mandrel is slidably arranged on the lathe body along the axis direction of the sleeve, the sleeve is sleeved on the positioning mandrel for positioning and the positioning mandrel and one end of the sleeve close to the turning tool are flush, and a moving mechanism for driving the positioning mandrel to move is also arranged on the lathe body, and the moving mechanism drives the positioning mandrel to move along with the turning tool and keeps a certain distance between the positioning mandrel and the turning tool.

[0007] By adopting the above technical scheme, during processing, the sleeve is sleeved onto the positioning mandrel, and the sleeve and the end of the positioning mandrel close to the turning tool are flush, then the three-jaw chuck is started to clamp the sleeve, then the driving mechanism is started to drive the turning tool to move close to the sleeve, and at the same time the moving mechanism is started to drive the positioning mandrel away from the turning tool, so that the turning tool and the positioning mandrel maintain a certain distance, after the sleeve processing is completed, the turning tool moves back to the outside of the sleeve, and at the same time the positioning mandrel is also moved back to the original position under the action of the moving mechanism, so as to facilitate the subsequent clamping of the sleeve, and then the three-jaw chuck releases the clamping of the sleeve, and then the sleeve can be removed for replacement;

[0008] The inner wall of the sleeve is supported by the positioning mandrel, thereby reducing the probability of deformation of the sleeve due to clamping. At the same time, the positioning mandrel moves with the movement of the turning tool, thereby reducing the probability of sleeve jumping when the turning tool turns the sleeve, improving the processing accuracy of the sleeve inner hole, improving the matching effect of the pin shaft and the sleeve inner hole, and improving the quality of the chain;

[0009] At the same time, through the matching relationship when the sleeve is sleeved on the positioning core shaft, the size of the sleeve in the previous process can be known in time, especially when the inner hole size of the sleeve in the previous process is smaller than the required size, the sleeve is difficult or even impossible to be sleeved on the positioning core shaft, so that the sleeve that does not meet the size can be processed in time before processing, thereby reducing the adverse effects of the previous process not meeting the standards on this process, thereby further improving the quality of the chain.

[0010] Optionally, the moving mechanism includes:

[0011] A moving block, wherein the moving block is slidably arranged on the lathe body along the axis of the sleeve, and the positioning mandrel is rotatably arranged on the moving block and moves together with the moving block;

[0012] A positioning assembly, which is arranged on the positioning mandrel and is used to position the sleeve;

[0013] The moving assembly is arranged on the lathe body and is used for driving the moving block to move.

[0014] By adopting the above technical scheme, when the sleeve is sleeved on the positioning mandrel, the positioning assembly is used to position the sleeve, which improves the position accuracy of the sleeve when clamping and improves the processing accuracy of the sleeve; when the three-jaw chuck rotates, it drives the sleeve and the positioning mandrel to rotate together, and the moving assembly starts to drive the moving block to move without interfering with the rotation of the positioning mandrel, thereby reducing the probability of wear caused by displacement of the positioning mandrel and the sleeve when it moves, and improves the positioning and supporting effect of the positioning mandrel on the sleeve, thereby achieving driving the positioning mandrel to move while also improving the quality of the chain.

[0015] Optionally, the mobile component includes:

[0016] A movable screw rod, which is rotatably disposed on the lathe body and is threadedly connected to the movable block;

[0017] A moving motor is arranged on the lathe body and connected to the moving lead screw and is used to drive the moving lead screw to rotate.

[0018] By adopting the above technical solution, the moving motor is started to drive the positioning screw to rotate, and the rotation of the positioning screw drives the positioning mandrel to move, thereby realizing the movement of the positioning mandrel.

[0019] Optionally, the positioning component includes:

[0020] A fixed disk, the fixed disk being arranged on the positioning mandrel;

[0021] A movable plate, wherein the movable plate sliding sleeve is arranged on the positioning mandrel and is located on a side of the fixed plate close to the turning tool;

[0022] A fixed tube, the fixed tube being arranged on a side wall of the fixed disk close to the movable disk;

[0023] A movable spring is sleeved on the positioning core shaft and connected to the fixed disk and the movable disk; after the sleeve pushes the movable disk to abut against the fixed tube for positioning, the three-jaw chuck is started to clamp the sleeve and put the movable spring in a compressed state.

[0024] By adopting the above technical solution, the sleeve is sleeved on the positioning mandrel to push the moving disk to move, so that the moving disk abuts against the fixed tube for positioning, and then the three-jaw chuck is started to clamp the sleeve, and the positioning mandrel moves to drive the fixed disk away from the turning tool, while the moving disk continues to press against the sleeve under the action of the moving spring. Therefore, the moving spring is used to offset the thrust generated by the turning tool when turning the sleeve, especially to offset the thrust when the turning tool just contacts the sleeve for cutting, thereby reducing the probability of deformation and jumping of the sleeve under the action of the thrust, and improving the processing accuracy of the sleeve;

[0025] The movement of the positioning mandrel drives the moving disk away from the sleeve, and the turning tool continues to turn until the processing is completed, and then the turning tool moves back to the outside of the sleeve. At the same time, the positioning mandrel moves back to its original position under the action of the moving component, so that the moving disk presses the moving spring and then rests on the fixed tube for positioning, and then the three-jaw chuck releases the clamping of the sleeve, and the moving disk pushes the sleeve to the outside of the three-jaw chuck under the action of the moving spring for unloading, thereby improving the convenience of unloading the sleeve and at the same time improving the processing accuracy and efficiency of the sleeve.

[0026] Optionally, the lathe body is provided with a cleaning mechanism for blowing air to clean the debris and cutting fluid on the sleeve, and the cleaning mechanism keeps the debris and cutting fluid away from the positioning core shaft; the lathe body is also provided with a detection mechanism for detecting the sleeve after processing and cleaning.

[0027] By adopting the above technical solution, when the turning tool is turning, the cleaning structure blows air to make the debris and cutting fluid move away from the positioning mandrel and then flow out of the sleeve, thereby preventing impurities and cutting fluid from entering between the positioning mandrel and the sleeve, and at the same time removing impurities adhering to the turning tool, thereby reducing the adverse effects of impurities and cutting fluid on the positioning of the positioning mandrel and the turning of the lathe, further improving the processing accuracy of the sleeve and improving the quality of the chain.

[0028] The detection mechanism detects the sleeve, so it can promptly discover and correct any problems that occur during sleeve processing, thereby further improving the processing accuracy of the sleeve and the quality of the chain; at the same time, after the turning tool continues to cut the sleeve, the cutting fluid is turned off, and then the turning tool moves back, while the cleaning mechanism continues to blow air to clean the remaining impurities and cutting fluid on the sleeve, thereby reducing the convenience of cleaning the sleeve, while also improving the accuracy of the detection mechanism during detection and improving the quality of the chain.

[0029] Optionally, a mounting groove is coaxially provided on the outer side wall of one end of the positioning mandrel close to the turning tool, and the cleaning mechanism includes:

[0030] A cleaning ring, wherein the cleaning ring is arranged on the mounting groove and a plurality of cleaning holes are opened around the axis of the cleaning ring on the side wall close to the turning tool;

[0031] An air supply pipe, which is arranged on the lathe body and is connected to the air source and is provided with an air supply valve;

[0032] An air supply ring, the air supply ring being rotatably arranged on an end of the positioning mandrel away from the cleaning ring;

[0033] A sliding pipe is arranged on the air supply ring and is slidingly connected with the air supply pipe, and the sliding pipe is connected with the air supply pipe and the cleaning hole.

[0034] By adopting the above technical solution, when the turning tool is turning, the air supply valve is opened, and the gas in the air source enters the sliding tube through the air supply pipe, and then the gas is blown out through the cleaning hole, so as to prevent impurities and cutting fluid from entering between the positioning mandrel and the sleeve, and at the same time remove the impurities adhering to the turning tool, thereby reducing the adverse effects of impurities and cutting fluid on the positioning of the positioning mandrel and the turning of the lathe, further improving the processing accuracy of the sleeve and improving the quality of the chain.

[0035] Optionally, the detection mechanism includes:

[0036] A guide rail, which is arranged on the lathe body and is used to receive the sleeve after cutting;

[0037] A first limiting plate and a second limiting plate, wherein the first limiting plate and the second limiting plate are spaced apart and arranged on the lathe body;

[0038] An inspection table, the inspection table is rotatably arranged on the first limit plate and the second limit plate and is used to place the processed sleeve; when the sleeve is located on the inspection table, the two ends of the sleeve abut against the side wall on the opposite side of the first limit plate and the second limit plate for positioning;

[0039] A rotating motor, which is arranged on the first limit plate and is used to drive the detection platform to rotate forward or reverse and realize the unloading of the sleeve on the detection platform;

[0040] Two collecting assemblies, the two collecting assemblies are arranged on the first limiting plate and the second limiting plate and are respectively used to collect the sleeves unloaded after the detection table rotates forward or reversely;

[0041] A detection component is arranged on the second limit plate and is used to detect the sleeve and is electrically connected to the rotating motor.

[0042] By adopting the above technical scheme, the sleeve falls onto the guide rail after unloading, and is moved to the inspection table for placement after being guided by the guide rail, and the sleeve contacts the first limit plate and the second limit plate for positioning, and then the inspection component starts to inspect the sleeve, and the inspection component controls the rotating motor to rotate forward or reverse according to the inspection result, so that the sleeves that meet and do not meet the size requirements are respectively moved to two collection components for collection, and then the staff re-inspects the sleeves that do not meet the size requirements, thereby further improving the processing accuracy of the sleeve and improving the quality of the chain.

[0043] Optionally, the detection component includes:

[0044] A detection mandrel, which is slidably mounted on the second limit plate and is used for being plugged and mounted on the sleeve for detection;

[0045] A detection disk, wherein the detection disk is arranged on a detection spindle;

[0046] A pushing cylinder, wherein the pushing cylinder is arranged on the sleeve;

[0047] A mounting plate, the mounting plate is arranged on the piston rod of the push cylinder and is slidably connected with the detection plate;

[0048] A push spring, both ends of which are connected to the mounting plate and the detection disk;

[0049] The sensor is arranged on the second limiting plate and is electrically connected to the rotating motor.

[0050] By adopting the above technical solution, the air cylinder is pushed to start and drive the detection disk and the detection mandrel to move. The detection mandrel is inserted into the sleeve for detection. When the size requirements are met, the detection mandrel is subject to very little resistance and moves forward to the right position. Therefore, the detection mandrel drives the detection disk to move and contact the sensor, so that it can be known that the size of the sleeve meets the requirements. Then, the air cylinder is pushed to start and drive the detection mandrel to move back and separate from the sleeve. Then, the driving motor is started to drive the detection table to rotate for unloading.

[0051] When the inner hole size of the sleeve becomes smaller, the detection spindle encounters greater resistance and blocks its movement. Therefore, after the cylinder piston rod is pushed to move the same distance, the detection disk does not move into place and does not contact the sensor. Therefore, the cylinder is started to drive the detection spindle to move back and separate from the sleeve. Then the motor is driven to rotate in the opposite direction to unload the sleeve into another collection assembly for collection, thereby realizing the detection of the sleeve and improving the processing accuracy of the sleeve.

[0052] Optionally, the collection component includes:

[0053] A guide plate, the guide plate is arranged on the first limit plate and the second limit plate and catches the sleeve dropped on the detection table;

[0054] A collection box is placed on the ground and is used to collect the sleeves dropped on the guide plate.

[0055] By adopting the above technical solution, the guide plate is used to guide the fallen sleeve, and the collection box is used to collect the sleeve that falls on the guide plate, thereby realizing the collection of the sleeve.

[0056] In the second aspect, the present application provides a processing method, which adopts the following technical solution:

[0057] A processing method comprises the following processing steps:

[0058] S1, rough processing, the sleeve is rough processed by the processing device, and then the aperture size is detected. Those that meet the requirements flow into the next process, and those that do not meet the requirements are selected for processing;

[0059] S2, finishing, the sleeve is finished by the processing device, and then the aperture size is tested. Those that meet the standards flow into the next process, and those that do not meet the standards are selected for processing;

[0060] S3, cleaning, cleaning and entering the next process.

[0061] By adopting the above technical solution, the sleeve is processed twice, rough machining and fine machining, and is inspected during the machining process. If it meets the requirements, it enters the next process. Finally, the sleeve is cleaned and enters the next process, thereby improving the machining accuracy of the sleeve.

[0062] In summary, the present application includes at least one of the following beneficial technical effects:

[0063] The inner wall of the sleeve is supported by the positioning mandrel, thereby reducing the probability of deformation of the sleeve due to clamping. At the same time, the positioning mandrel moves with the movement of the turning tool, thereby reducing the probability of the sleeve jumping when the turning tool turns the sleeve, improving the processing accuracy of the inner hole of the sleeve, improving the matching effect of the pin shaft and the inner hole of the sleeve, and improving the quality of the chain. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] Figure 1 It is a three-dimensional structural schematic diagram of a processing device;

[0065] Figure 2 It is a structural schematic diagram of the moving mechanism and the cleaning mechanism in this application;

[0066] Figure 3 is a schematic diagram of the structure of the positioning assembly in the present application, wherein the sleeve is exploded and the fixing tube is cut away;

[0067] Figure 4 It is a schematic diagram of the structure of the testing organization in this application;

[0068] Figure 5 It is a partial structural diagram of the detection mechanism in this application.

[0069] Figure numerals: 1, lathe body; 11, base; 111, chip groove; 12, headstock; 121, support plate; 13, spindle; 14, fixed ring; 21, three-jaw chuck; 22, turning tool; 23, positioning mandrel; 24, sleeve; 3, moving mechanism; 31, moving block; 32, positioning assembly; 33, fixed plate; 34, moving plate; 35, fixed pipe; 36, moving spring; 4, moving assembly; 41, moving screw rod; 42, moving motor; 5, cleaning mechanism; 51, cleaning ring; 52, air supply pipe; 53, air supply ring; 54, sliding pipe; 5 5. Cleaning hole; 56. Air supply valve; 6. Detection mechanism; 61. Guide rail; 62. First limit plate; 63. Second limit plate; 64. Detection table; 65. Rotating motor; 66. Collecting assembly; 67. Guide plate; 68. Collecting box; 7. Detection assembly; 71. Detection mandrel; 72. Detection disk; 73. Push cylinder; 74. Mounting plate; 75. Push spring; 81. Rotating shaft; 82. Rotating hole; 83. Connecting rod; 84. Fixed plate; 85. Detection rod; 9. Driving mechanism; 91. First slide seat; 92. Second slide seat; 93. Driving assembly. DETAILED DESCRIPTION

[0070] The following is combined with Figure 1-5 This application is described in further detail.

[0071] The embodiment of the present application discloses a step chain sleeve inner hole processing device.

[0072] Reference Figure 1 and Figure 2The step chain sleeve inner hole processing device comprises a lathe body 1, a three-jaw chuck 21 rotatably mounted on the lathe body 1 and used to clamp a sleeve 24, a turning tool 22 slidably arranged on the lathe body 1, and a driving mechanism 9 for driving the turning tool 22 to move. A positioning mandrel 23 is slidably arranged on the lathe body 1 along the axis direction of the sleeve 24. The sleeve 24 is sleeved on the positioning mandrel 23 for positioning, so that the mandrel of the sleeve 24 and one end of the sleeve 24 close to the turning tool 22 are flush, and then the three-jaw chuck 21 starts to position the sleeve. 24 is clamped on the outer wall; a moving mechanism 3 for driving the positioning spindle 23 to move is arranged on the lathe body 1, and the moving mechanism 3 drives the positioning spindle 23 to move along with the turning tool 22 and makes the positioning spindle 23 maintain a certain distance from the turning tool 22; a cleaning mechanism 5 and a detection mechanism 6 are also arranged on the lathe body, the cleaning mechanism 5 is used for blowing to clean the debris and cutting fluid on the sleeve 24, and makes the debris and cutting fluid stay away from the positioning spindle 23, and the detection mechanism 6 is used for detecting the sleeve 24 after processing.

[0073] The lathe body 1 includes a base 11 and a headstock 12 fixedly mounted on the upper surface of one end of the base 11. The lathe body 1 also includes a spindle 13 and a motion component that drives the spindle 13 to rotate. The spindle 13 is rotatably mounted on the side wall of the headstock 12 close to the turning tool 22, and the spindle 13 horizontally passes through the side wall of the headstock 12 away from the turning tool 22 and is a hollow tubular structure. The motion component includes a motion motor and two synchronous wheels. The motion motor is fixedly mounted on the inner side wall of the headstock 12, and the output shaft of the motion motor is parallel to the axis of the spindle 13. The two synchronous wheels are respectively mounted on the output shaft of the motion motor and the spindle 13 and are connected together through the synchronous wheels. When the motion motor is started, it drives the spindle 13 to rotate; a support plate 121 is fixedly mounted on the side wall of the headstock 12 away from the turning tool 22 and on one side of the positioning core shaft 23.

[0074] The driving mechanism 9 includes a first slide 91, a second slide 92 and a driving assembly 93. The first slide 91 is horizontally slidably installed on the upper surface of the base 11, and the sliding direction of the first slide 91 is parallel to the axis of the main shaft 13; the second slide 92 is horizontally slidably installed on the upper surface of the first slide 91, and the sliding direction of the second slide 92 is perpendicular to the sliding direction of the first slide 91, and the turning tool 22 is fixedly installed on the upper surface of the second slide 92; two driving assemblies 93 are provided and are located on the base 11 and the first slide 91. The two driving assemblies 93 are respectively used to drive the first slide 91 and the second slide 92 to move. The driving assemblies 93 all adopt the motor and screw structure in the prior art to drive the turning tool 22 to move in two directions in the horizontal plane, thereby realizing the movement of the turning tool 22 and turning the sleeve 24.

[0075] A mounting plate is coaxially fixedly installed on the end of the spindle 13 away from the turning tool 22, and a fixing ring 14 is fixedly installed on the outer wall of the end of the spindle 13 close to the turning tool 22. The three-jaw chuck 21 is fixedly installed on the side wall of the fixing ring 14 close to the turning tool 22, and the three-jaw chuck 21 adopts a three-jaw pneumatic chuck, so as to clamp and release the sleeve 24; the positioning mandrel 23 is coaxially slidably penetrated on the mounting plate, so that the axes of the positioning mandrel 23 and the spindle 13 coincide, and one end of the positioning mandrel 23 extends horizontally into the three-jaw chuck 21, the outer diameter of the positioning mandrel 23 is not larger than the inner diameter of the sleeve 24, and it is best that the outer diameter of the positioning mandrel 23 is equal to the inner diameter of the sleeve 24.

[0076] Reference Figure 2 and Figure 3 The moving mechanism 3 includes a moving block 31, a positioning assembly 32 and a moving assembly 4. The moving block 31 is slidably installed on the side wall of the support plate 121 along the axial direction of the positioning core shaft 23. The end of the positioning core shaft 23 away from the turning tool 22 is rotatably installed on the moving block 31. Therefore, when the moving block 31 moves, it will not interfere with the rotation of the positioning core shaft 23 and drive the positioning core shaft 23 to move at the same time; the positioning assembly 32 is arranged on the positioning core shaft 23 and is used to position the position of the sleeve 24, so that when the sleeve 24 is sleeved on the positioning core shaft 23, the sleeve 24 and the positioning core shaft 23 are flush with one end close to the turning tool 22.

[0077] Reference Figure 1 and Figure 3 The positioning assembly 32 includes a fixed plate 33, a movable plate 34, a fixed tube 35 and a movable spring 36, the fixed plate 33 being coaxially fixedly mounted on the outer side wall of the positioning core shaft 23; the movable plate 34 is slidably sleeved on the positioning core shaft 23, and the movable plate 34 is located on the side of the fixed plate 33 close to the sleeve 24 and the turning tool 22, and the outer diameter of the movable plate 34 is the same as the outer diameter of the sleeve 24; the fixed tube 35 is coaxially fixedly mounted on the side wall of the fixed plate 33 close to the movable plate 34, the fixed tube 35, the fixed plate 33 and the movable plate 34 have the same outer diameter, and the inner diameter of the fixed tube 35 is larger than the outer diameter of the positioning core shaft 23; one end of the movable spring 36 is fixedly mounted on the side wall of the movable plate 34 close to the fixed plate 33, the other end of the movable spring 36 is located in the fixed tube 35 and pressed against the side wall of the fixed plate 33 close to the movable plate 34, and the movable spring 36 is sleeved on the positioning core shaft 23.

[0078] Reference Figure 2 and Figure 3, the sleeve 24 is sleeved on the positioning core shaft 23, and the sleeve 24 pushes the movable disk 34 to approach the fixed tube 35. When the movable disk 34 is pressed against the fixed tube 35 for positioning, the sleeve 24 and one end of the positioning core shaft 23 are flush, and the movable spring 36 is in a compressed state at this time. Then the three-jaw chuck 21 is started to clamp the sleeve 24, so as to realize the clamping of the sleeve 24. After the processing of the sleeve 24 is completed, the movable disk 34 pushes the sleeve 24 under the action of the movable spring 36 to complete the unloading.

[0079] The moving assembly 4 is arranged on the headstock 12 and is used to drive the moving block 31 to move. The moving assembly 4 includes a moving screw 41 and a moving motor 42. The moving screw 41 is rotatably mounted on the support plate 121, and the moving screw 41 is threadedly connected with the moving block 31 and is used to drive the moving block 31 to move; the moving motor 42 is fixedly mounted on the support plate 121, and the output shaft of the moving motor 42 is connected with the moving screw 41. The starting of the moving motor 42 drives the moving block 31 to move, and the movement of the moving block 31 drives the positioning mandrel 23 to move.

[0080] Reference Figure 1 , Figure 2 and Figure 3 After the sleeve 24 is clamped, the spindle 13 rotates to drive the sleeve 24 and the positioning mandrel 23 to rotate together, and the turning tool 22 starts to approach the sleeve 24. When the turning tool 22 moves a certain distance and the distance between it and the positioning mandrel 23 reaches a set value, the moving motor 42 starts to drive the positioning mandrel 23 away from the turning tool 22, so that the positioning mandrel 23 and the turning tool 22 maintain a certain distance, and the positioning mandrel 23 moves to drive the fixed plate 33 to move, and the moving plate 34 continues to press on the sleeve 24 for positioning under the action of the moving spring 36, so as to offset the thrust generated by the turning tool 22 when processing the sleeve 24, and the positioning mandrel 23 continues to The movement can drive the moving disk 34 to disengage from the sleeve 24 until the positioning core shaft 23 is completely moved to the outside of the sleeve 24, and the turning tool 22 completes the processing of the inner hole of the sleeve 24; then the turning tool 22 moves back, and at the same time, the positioning core shaft 23 also moves back with the turning tool 22, so the moving disk 34 first abuts against the sleeve 24, and then the positioning core shaft 23 continues to move back until the moving disk 34 abuts against the fixed tube 35 and then stops moving, and at this time the moving spring 36 is compressed, and then the three-jaw chuck 21 starts to release the clamping of the sleeve 24, and the moving disk 34 pushes the sleeve 24 to fall from the positioning core shaft 23 under the action of the moving spring 36 to achieve material unloading.

[0081] An annular mounting groove is coaxially provided on the end of the positioning core shaft 23 close to the turning tool 22, and the cleaning mechanism 5 includes a cleaning ring 51, an air supply pipe 52, an air supply ring 53 and a sliding tube 54. The cleaning ring 51 is coaxially fixedly installed on the mounting groove, and the outer diameter of the cleaning ring 51 is less than or equal to the outer diameter of the positioning core shaft 23. A cleaning cavity is provided in the cleaning ring 51, and a plurality of cleaning holes 55 are provided in a circular array around the axis of the positioning core shaft 23 on the side wall of the cleaning ring 51 close to the turning tool 22. The cleaning holes 55 are in an inclined state, and the distance from the end close to the turning tool 22 to the axis of the cleaning ring 51 is greater than the distance from the end away from the turning tool 22 to the axis of the cleaning ring 51.

[0082] The air supply pipe 52 is fixedly mounted on the upper surface of the lathe head 12 and is connected to the air source. At the same time, an air supply valve 56 for controlling the switch is fixedly mounted on the air supply pipe 52. A control panel for controlling the opening and closing of the air supply valve 56 is fixedly mounted on the lathe head 12, and the control panel is electrically connected to a control structure for controlling the movement of the turning tool 22, so that when the turning tool 22 moves, the air supply valve 56 is opened for cleaning, and when the turning tool 22 stops moving to end processing, the air supply valve 56 is closed.

[0083] The air supply ring 53 is rotatably mounted on one end of the positioning core shaft 23 away from the cleaning ring 51, and the air supply ring 53 is located on the side of the moving block 31 away from the cleaning ring 51, and an air supply cavity is opened in the air supply ring 53, and a connecting chamber connected with the air supply cavity and the cleaning cavity is opened in the positioning core shaft 23; the sliding tube 54 is fixedly mounted on the outer wall of the air supply ring 53, and the sliding tube 54 is connected with the air supply cavity, and the sliding tube 54 is coaxially slidably penetrated on the inner wall of the air supply tube 52.

[0084] The air supply valve 56 is opened, and the gas passes through the air supply pipe 52, the sliding pipe 54, the air supply chamber, the connecting chamber, and the cleaning chamber in turn, and finally the gas is blown out through the cleaning hole 55, so that the debris and cutting fluid generated by the turning tool 22 during turning flow out away from the positioning core shaft 23, and the turning tool 22 stops spraying cutting fluid when the inner hole of the sleeve 24 is processed and moves to the outside of the sleeve 24, while the gas is still sprayed out for cleaning, and when the turning tool 22 and the positioning core shaft 23 move back, the gas continues to clean the debris and cutting fluid remaining in the sleeve 24, thereby reducing the probability of debris and cutting fluid entering between the positioning core shaft 23 and the sleeve 24 and having an adverse effect on the processing, and also cleans the sleeve 24 without the need for subsequent cleaning, and also reduces the adverse effects of debris and cutting fluid on subsequent detection by the detection mechanism 6, thereby improving the processing accuracy of the sleeve 24.

[0085] Reference Figure 1 , Figure 2 , Figure 4The detection mechanism 6 includes a guide rail 61, a first limit plate 62, a second limit plate 63, a detection table 64, a rotating motor 65, two collection components 66, and a detection component 7. A chip groove 111 is provided on the upper surface of the base 11. The guide rail 61 is fixedly mounted on the side wall of the chip groove 111 and obliquely passes through the side wall of the base 11 downward. At the same time, the guide rail 61 is located below the first slide 91 and is used to receive the sleeve 24 after unloading. At the same time, a moving groove for the sleeve 24 to move is provided on the guide rail 61, and the width of the moving groove gradually decreases from the top to the bottom. At the same time, the bottom width of the moving groove is the same as the length of the sleeve 24, and the moving groove is convenient for guiding the sleeve 24 after receiving it. The first limit plate 62 and the second limit plate 63 are fixedly mounted on the side wall of the base 11 and are located below the guide rail 61. At the same time, the first limit plate 62 and the second limit plate 63 are spaced apart along the axial direction of the sleeve 24.

[0086] Reference Figure 2 , Figure 5 A rotating shaft 81 is rotatably installed on the side wall of the first limiting plate 62 on the side away from the second limiting plate 63, and the axis of the rotating shaft 81 is parallel to the axis of the sleeve 24; an arc-shaped rotating hole 82 is opened on the side wall on the opposite side of the first limiting plate 62 and the second limiting plate 63 and located below the rotating shaft 81, and the center of the rotating hole 82 is located on the axis of the rotating shaft 81, and a connecting rod 83 is rotatably installed on the two rotating holes 82, and the connecting rod 83 close to the rotating shaft 81 is connected to the rotating shaft 81 together.

[0087] The detection platform 64 is an arc-shaped plate-like structure and the center of the arc is located on the axis of the rotating shaft 81. At the same time, the length direction of the detection platform 64 is parallel to the axis of the rotating shaft 81. At the same time, the two ends of the detection platform 64 are respectively fixedly connected to the opposite ends of the two connecting rods 83, and the two ends of the detection platform 64 are in contact with the two side walls on the opposite side of the first limit plate 62 and the second limit plate 63; when the sleeve 24 is placed on the upper surface of the detection platform 64, it fits with the upper surface of the detection platform 64, and at the same time, the two ends of the sleeve 24 are in contact with the two side walls on the opposite side of the first limit plate 62 and the second limit plate 63 for positioning; the rotating motor 65 is fixedly installed on the side wall of the first limit plate 62 away from the detection platform 64, and the output shaft of the rotating motor 65 is connected to the rotating shaft 81 and is used to drive the rotating shaft 81 to rotate forward or reverse.

[0088] Reference Figure 1 , Figure 2 , Figure 4, two collecting components 66 are arranged on the first limiting plate 62 and the second limiting plate 63 and are respectively used to collect the sleeves 24 unloaded after the inspection table 64 is forwarded or reversed. The two collecting components 66 are located on both sides of the inspection table 64 close to or far away from the base 11. The collecting components 66 include a guide plate 67 and a collecting box 68. The guide plate 67 is fixedly mounted on the side wall on the opposite side of the first limiting plate 62 and the second limiting plate 63, and the guide plate 67 is located below the inspection table 64. When the inspection table 64 rotates, the sleeve 24 can fall onto the guide plate 67 for guidance. The collecting box 68 is placed on the ground and is used to collect the sleeve 24 dropped from the guide plate 67; the collecting box 68 on the side close to the base 11 is used to collect unqualified sleeves 24, and the size of the collecting box 68 on the side close to the base 11 is smaller than the size of the collecting box 68 on the side away from the base 11.

[0089] A horizontal fixing plate 84 is fixedly installed on the side wall of the second limit plate 63 away from the detection platform 64. The detection component 7 is arranged on the fixing plate 84 and is used to detect the inner hole size of the sleeve 24 and is electrically connected to the rotating motor 65; the detection component 7 includes a detection spindle 71, a detection disk 72, a pushing cylinder 73, a mounting plate 74, a pushing spring 75 and a sensor. The detection spindle 71 is horizontally slidably arranged on the second limit plate 63, and the axes of the detection spindle 71 and the rotating shaft 81 coincide with each other. At the same time, the detection spindle 71 is used to detect whether the inner hole diameter of the sleeve 24 meets the requirements; the detection disk 72 is fixedly installed on the end of the detection spindle 71 away from the detection platform 64, and the side wall of the detection disk 72 is slidably installed on the side wall of the fixing plate 84.

[0090] The pushing cylinder 73 is fixedly mounted on the side wall of the fixing plate 84, and the pushing cylinder 73 is located on the side of the detection disk 72 away from the detection core shaft 71, and at the same time, the piston rod of the pushing cylinder 73 extends to the side of the detection disk 72 along the axial direction of the detection core shaft 71; the mounting plate 74 is fixedly mounted on the piston rod of the pushing cylinder 73, and a plurality of detection rods 85 slidably penetrated on the mounting plate 74 are fixedly mounted on the detection disk 72 at intervals, and at the same time, the sliding direction of the detection rod 85 is parallel to the axial direction of the detection core shaft 71; a plurality of pushing springs 75 are provided and located at a plurality of detection rods 85, the pushing springs 75 are sleeved on the detection rods 85, and the two ends of the pushing springs 75 are fixedly connected to the opposite side walls of the detection disk 72 and the mounting plate 74.

[0091] Reference Figure 1 , Figure 4The sensor is fixedly mounted on the side wall of the fixed plate 84, and a control box that controls the rotation of the rotating motor 65 and the movement of the pushing cylinder 73 is fixedly mounted on the base 11, and the sensor is electrically connected to the control box; the control box controls the pushing cylinder 73 to start and drive the mounting plate 74 to move, and the mounting plate 74 pushes the detection disk 72 and the detection spindle 71 toward the sleeve 24 through the pushing spring 75, so that the detection spindle 71 is plugged and installed in the sleeve 24. When the size of the detection spindle 71 meets the standard, the detection spindle 71 can be plugged to the bottom, so the movement of the detection spindle 71 drives the detection disk 72 to contact with the sensor, and the control box controls the pushing cylinder 73 to start and drive the detection spindle 71 to disengage from the sleeve 24, and then the control box controls the rotating motor 65 to drive the detection table 64 to rotate, so that the sleeve 24 located on the detection table 64 falls into the collection box 68 for collecting qualified sleeves 24 for collection.

[0092] Otherwise, the inner hole size of the sleeve 24 is smaller than the required size. Therefore, the pushing cylinder 73 drives the detection disk 72 and the detection spindle 71 to move for the same time and the same distance. The detection spindle 71 cannot be inserted to the bottom due to the squeezing force during the movement, and the detection disk 72 squeezes the pushing spring 75 for buffering, so that the detection disk 72 does not contact the sensor. Therefore, the control box controls the pushing cylinder 73 to move back so that the detection spindle 71 is separated from the sleeve 24, and then the rotating motor 65 is reversed, so that the sleeve 24 on the detection table 64 falls into another collection box 68 for collection, thereby realizing the detection of the size of the sleeve 24 after processing. At the same time, when the detection disk 72 is not in contact with the sensor, the warning light alarm is also turned on to remind the staff to deal with it in time, thereby reducing the probability of the sleeve 24 size becoming smaller due to the wear of the turning tool 22, thereby improving the processing accuracy of the sleeve 24.

[0093] The working principle of the embodiment of the present application is as follows:

[0094] The sleeve 24 is sleeved on the positioning core shaft 23, and the sleeve 24 pushes the movable disk 34 to press against the fixed tube 35 for positioning, and then the three-jaw chuck 21 is started to clamp the sleeve 24, and the spindle 13 rotates to drive the sleeve 24 and the positioning core shaft 23 to rotate together, and the turning tool 22 approaches the sleeve 24, and then the moving motor 42 is started to drive the positioning core shaft 23 away from the turning tool 22, so that the positioning core shaft 23 and the turning tool 22 maintain a certain distance, so as to complete the processing of the inner hole of the sleeve 24. During the processing, the air supply valve 56 is opened, and the gas is blown out through the cleaning hole 55, so that the debris and cutting fluid generated during the processing fall from the sleeve 24.

[0095] After the turning tool 22 completes turning the inner hole of the sleeve 24 and moves to the outside of the sleeve 24, the cutting fluid is turned off and the turning tool 22 moves back away from the sleeve 24. At the same time, the positioning mandrel 23 also moves back to its original position. The cleaning hole 55 blows out gas to continue to clean the impurities and cutting fluid remaining in the sleeve 24, and the moving disk 34 is pressed against the sleeve 24 under the action of the moving spring 36. After the turning tool 22 stops moving, the air supply valve 56 closes the gas supply, thereby realizing the processing and cleaning of the sleeve 24, thereby reducing the probability of deformation and jumping of the sleeve 24, improving the processing accuracy of the sleeve 24, and improving the quality of the chain.

[0096] After the processing is completed, the three-jaw chuck 21 releases the clamping of the sleeve 24, and the moving plate 34 pushes the sleeve 24 to fall onto the guide rail 61 under the action of the moving spring 36, and then the sleeve 24 falls onto the detection table 64 and the two ends abut against the first limit plate 62 and the second limit plate 63 for positioning, and then the push cylinder 73 is started to push the detection mandrel 71 to be plugged and installed on the sleeve 24, and the detection mandrel 71 drives the detection plate 72 to move. When the detection plate 72 contacts the sensor, it means that the size of the sleeve 24 meets the requirements, and the push cylinder 73 is pushed. 3 is started to drive the detection mandrel 71 to be separated from the sleeve 24, and then the rotating motor 65 drives the detection table 64 to rotate, so that the sleeve 24 falls into the collection box 68 for collection. Otherwise, the sleeve 24 does not meet the size requirements, and then the cylinder 73 is pushed to start and drive the detection mandrel 71 to be separated from the sleeve 24, and the rotating motor 65 drives the detection table 64 to rotate in the opposite direction, so that the sleeve 24 falls into another collection box 68 for collection, and at the same time reminds the staff to handle it in time, thereby improving the processing accuracy of the sleeve 24.

[0097] The embodiment of the present application discloses a processing method.

[0098] Reference Figure 2 , the processing method includes the following processing steps:

[0099] S1, rough processing, the sleeve 24 is rough processed by the processing device, and then the aperture size is detected. Those that meet the requirements flow into the next process, and those that do not meet the requirements are selected for processing;

[0100] S2, fine processing, the sleeve 24 is fine processed by the processing device, and then the aperture size is detected. Those that meet the standards flow into the next process, and those that do not meet the standards are selected for processing;

[0101] S3, cleaning, cleaning and entering the next process.

[0102] The working principle of the embodiment of the present application is as follows:

[0103] The sleeve 24 is processed twice, namely, rough machining and fine machining. Inspection is performed during the machining process. If it meets the requirements, it enters the next process. Finally, the sleeve 24 is cleaned and then enters the next process, thereby improving the machining accuracy of the sleeve 24.

[0104] 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 step chain sleeve inner hole processing device, comprising a lathe body (1), a three-jaw chuck (21) rotatably mounted on the lathe body (1) and used to clamp a sleeve (24), a turning tool (22) slidably arranged on the lathe body (1), and a driving mechanism (9) for driving the turning tool (22) to move, characterized in that: A positioning spindle (23) is slidably disposed on the lathe body (1) along the axis direction of the sleeve (24); the sleeve (24) is sleeved on the positioning spindle (23) for positioning and makes the positioning spindle (23) and one end of the sleeve (24) close to the turning tool (22) flush; a moving mechanism (3) for driving the positioning spindle (23) to move is also disposed on the lathe body (1); the moving mechanism (3) drives the positioning spindle (23) to move along with the turning tool (22) and makes the positioning spindle (23) maintain a certain distance from the turning tool (22); The moving mechanism (3) comprises: A moving block (31), the moving block (31) being slidably disposed on the lathe body (1) along the axis of the sleeve (24), and the positioning mandrel (23) being rotatably disposed on the moving block (31) and moving along with the moving block (31); A positioning assembly (32), wherein the positioning assembly (32) is arranged on the positioning mandrel (23) and is used to position the sleeve (24); A moving assembly (4), wherein the moving assembly (4) is arranged on the lathe body (1) and is used to drive the moving block (31) to move.

2. A step chain sleeve inner hole machining device according to claim 1, characterized in that: The mobile component (4) comprises: A movable screw rod (41), the movable screw rod (41) being rotatably disposed on the lathe body (1) and being threadably connected to the movable block (31); A moving motor (42) is arranged on the lathe body (1) and is connected to the moving screw rod (41) and is used to drive the moving screw rod (41) to rotate.

3. The step chain sleeve inner hole processing device according to claim 1, characterized in that: The positioning component (32) comprises: A fixed disk (33), wherein the fixed disk (33) is arranged on the positioning core shaft (23); A movable plate (34), wherein the movable plate (34) is slidably sleeved on the positioning mandrel (23) and is located on a side of the fixed plate (33) close to the turning tool (22); A fixed tube (35), the fixed tube (35) being arranged on a side wall of the fixed plate (33) close to the movable plate (34); A movable spring (36) is sleeved on the positioning core shaft (23) and connected to the fixed disk (33) and the movable disk (34); after the sleeve (24) pushes the movable disk (34) to abut against the fixed tube (35) for positioning, the three-jaw chuck (21) is started to clamp the sleeve (24) and put the movable spring (36) in a compressed state.

4. A step chain sleeve inner hole machining device according to claim 3, characterized in that: The lathe body (1) is provided with a cleaning mechanism (5) for blowing and cleaning the debris and cutting fluid on the sleeve (24), wherein the cleaning mechanism (5) keeps the debris and cutting fluid away from the positioning mandrel (23); the lathe body (1) is also provided with a detection mechanism (6) for detecting the sleeve (24) after processing and cleaning.

5. A step chain sleeve inner hole machining device according to claim 4, characterized in that: A mounting groove is coaxially formed on the outer side wall of one end of the positioning mandrel (23) close to the turning tool (22), and the cleaning mechanism (5) comprises: A cleaning ring (51), the cleaning ring (51) being arranged on the mounting groove and having a plurality of cleaning holes (55) formed around the axis of the cleaning ring (51) on a side wall close to the turning tool (22); an air supply pipe (52), the air supply pipe (52) being arranged on the lathe body (1) and being in communication with an air source and being provided with an air supply valve (56); An air supply ring (53), the air supply ring (53) being rotatably arranged on an end of the positioning mandrel (23) away from the cleaning ring (51); A sliding tube (54) is arranged on the air supply ring (53) and is slidingly connected to the air supply pipe (52); the sliding tube (54) is in communication with the air supply pipe (52) and the cleaning hole (55).

6. The step chain sleeve inner hole machining device according to claim 4, characterized in that: The detection mechanism (6) comprises: A guide rail (61), wherein the guide rail (61) is arranged on the lathe body (1) and is used to receive the sleeve (24) after cutting; A first limit plate (62) and a second limit plate (63), wherein the first limit plate (62) and the second limit plate (63) are arranged on the lathe body (1) at an interval; an inspection table (64), the inspection table (64) being rotatably disposed on the first limiting plate (62) and the second limiting plate (63) and being used to place the processed sleeve (24); when the sleeve (24) is located on the inspection table (64), two ends of the sleeve (24) abut against the side walls on the opposite side of the first limiting plate (62) and the second limiting plate (63) for positioning; a rotating motor (65), the rotating motor (65) being arranged on the first limiting plate (62) and being used to drive the detection platform (64) to rotate forward or reverse and to realize unloading of the sleeve (24) on the detection platform (64); Two collecting assemblies (66), the two collecting assemblies (66) being arranged on the first limiting plate (62) and the second limiting plate (63) and respectively used to collect the sleeves (24) unloaded after the detection table (64) rotates forward or reversely; A detection component (7), the detection component (7) being arranged on the second limiting plate (63) and used for detecting the sleeve (24) and being electrically connected to the rotating motor (65).

7. A step chain sleeve inner hole machining device according to claim 6, characterized in that: The detection component (7) comprises: A detection mandrel (71), the detection mandrel (71) being slidably mounted on the second limit plate (63) and being used for being plugged into and mounted on the sleeve (24) for detection; A detection disc (72), wherein the detection disc (72) is arranged on the detection spindle (71); A pushing cylinder (73), wherein the pushing cylinder (73) is arranged on the sleeve (24); A mounting plate (74), the mounting plate (74) being arranged on a piston rod of the push cylinder (73) and being slidably connected to the detection plate (72); A push spring (75), wherein two ends of the push spring (75) are respectively connected to the mounting plate (74) and the detection disk (72); An inductor, wherein the inductor is arranged on the second limiting plate (63) and is electrically connected to the rotating motor (65).

8. The step chain sleeve inner hole machining device according to claim 6, characterized in that: The collecting assembly (66) comprises: a guide plate (67), the guide plate (67) being arranged on the first limit plate (62) and the second limit plate (63) and catching the sleeve (24) dropped from the detection platform (64); A collection box (68) is placed on the ground and is used to collect the sleeves (24) that fall from the guide plate (67).

9. A processing method using the processing device according to any one of claims 1 to 8, characterized in that: The processing steps include: S1, rough machining, rough machining the sleeve (24) by a machining device, and then detecting the aperture size, those that meet the requirements flow into the next process, and those that do not meet the requirements are selected for processing; S2, fine processing, the sleeve (24) is fine processed by a processing device, and then the aperture size is detected. Those that meet the standard flow into the next process, and those that do not meet the standard are selected for processing; S3, cleaning, cleaning and entering the next process.

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