Spinning machine counter-rotation length control system

Abstract

The application relates to the field of spinning, in particular to a spinning machine counter-rotation fixed-length control system, which comprises the following steps: workpiece installation, installing a workpiece to be processed on a spinning machine on a workbench; system starting, starting the spinning machine system and starting the fixed-length system; system adjustment, zero-adjusting the fixed-length system, and controlling a fixed-length control device to move to an initial position; spinning processing, controlling the spinning machine system to run, using a spinning wheel on the spinning machine to spin the workpiece, detecting the length between the bosses processed by the workpiece through the fixed-length control device, and controlling the spinning machine system to stop spinning work; workpiece discharging, discharging the processed workpiece, the application improves the problem that the precision of a product obtained by traditional spinning thinning processing is low, and can improve the precision of spinning thinning processing.

Description

Technical Field

[0001] This application relates to the field of spinning, and in particular to a reverse spinning fixed-length control system for a spinning machine. Background Technology

[0002] High-strength thinning spinning is a high-strength rolling process used to produce materials of special thicknesses and varying wall thicknesses with different steps. It is widely used in military, aerospace, petrochemical, and pharmaceutical industries. High-strength thinning spinning is generally divided into forward spinning and reverse spinning. In high-strength spinning, the material extension direction is the same as the feeding direction of the spinning wheel, which is called forward spinning. The material extension direction is opposite to the feeding direction of the spinning wheel, which is called reverse spinning. Due to its higher efficiency, reverse spinning is used more frequently.

[0003] Currently, in the process of spinning thinning, the cylindrical or tubular material to be processed is mounted on a mandrel, the mandrel is driven to rotate, thereby causing the material to rotate. Then, the distance between the spinning wheel and the mandrel is adjusted, and the spinning wheel is controlled to travel along the outer wall of the material, thereby spinning the material to reduce the thickness and increase the length of the material.

[0004] Since high-strength thinning spinning is a chipless process, the material before and after spinning is calculated based on equal volume. Therefore, reducing the material thickness will lead to an increase in the material length. However, due to differences in material hardness and equipment rigidity, there will be a significant difference between the actual thickness of the produced product and the thickness set by the machine tool after spinning. This can result in the length of the material after spinning, especially the length between steps with multiple bosses, not meeting the design requirements, leading to lower spinning precision. Summary of the Invention

[0005] In order to improve the accuracy of spinning, this application provides a reverse spinning fixed length control system for a spinning machine.

[0006] This application provides a reverse-rotation fixed-length control system for a spinning mill, which adopts the following technical solution:

[0007] A reversing length control system for a spinning machine includes the following steps:

[0008] Workpiece mounting: The workpiece to be processed is mounted on the spinning machine on the workbench;

[0009] Start the system, turn on the spinning machine system, and start the length control system;

[0010] The system is adjusted by resetting the length-fixing system to zero and controlling the length-fixing detection device to move to the initial position.

[0011] Spinning process: control the operation of the spinning machine system, use the spinning wheels on the spinning machine to spin the workpiece, detect the length of the workpiece processed by the fixed length detection device, and control the spinning machine system to stop spinning.

[0012] Workpiece unloading: The finished workpiece is unloaded.

[0013] By adopting the above technical solution, the workpiece to be processed is installed on the spinning machine on the workbench. Then, the spinning machine system and the length-fixing system are started. The workpiece is spun by the spinning machine, thereby achieving the effect of thinning the workpiece by spinning. During the thinning process, the length after spinning is detected by the length-fixing detection device, and the length of the workpiece is controlled by the length-fixing device to meet the design requirements, thereby facilitating the improvement of the accuracy of spinning processing.

[0014] In one specific implementation, in the spinning process step, the speed of the spinning wheel is consistent with the speed of the fixed-length detection device.

[0015] By adopting the above technical solution, the travel speed of the length-fixing device is kept consistent with the travel speed of the spinning wheel, so as to improve the detection accuracy of the length-fixing device.

[0016] In one specific implementation, the distance between the spinning wheel and the fixed-length detection device is adjustable during the spinning process.

[0017] By adopting the above technical solution, when different workpieces need to be processed, the distance between the spinning wheel and the fixed length detection device can be adjusted to adapt to workpieces with different characteristics, thereby facilitating the processing of the workpieces to the designed length.

[0018] In one specific implementation, the fixed-length detection device includes an adjustment mechanism, which includes a moving component. The moving component includes a crossbeam, a servo motor, and a grating ruler. The grating ruler is mounted on a workbench and located in the direction of travel of the spinning wheel. The grating ruler is used to measure the travel speed and travel distance of the spinning wheel. The crossbeam is mounted on the workbench, and a transmission rack is mounted on the side wall of the crossbeam. A slider is slidably mounted on the crossbeam. The servo motor is mounted on the slider, and a drive gear is coaxially mounted on the output shaft of the servo motor. The transmission rack meshes with the drive gear.

[0019] By adopting the above technical solution, when the workpiece is spun, the traveling speed and traveling distance of the spinning wheel are detected by the grating ruler. The grating ruler controls the operation of the servo motor through the control system, so that the drive gear on the servo motor moves along the transmission rack, thereby driving the slider to move along the crossbeam. The moving speed and moving distance of the slider are kept consistent with the spinning wheel, which facilitates the fixed length control of the workpiece.

[0020] In one specific implementation, the adjusting mechanism further includes a lifting assembly, which includes a lifting cylinder, a lifting plate, and a support column. One end of the lifting plate is mounted on the slider, and the other end extends away from the slider. The lifting cylinder is mounted on the slider, and the piston rod of the lifting cylinder is connected to the side wall of the lifting plate. The support column is mounted on the end of the lifting plate away from the slider.

[0021] By adopting the above technical solution, when it is necessary to control the length of the workpiece, the lifting cylinder drives the lifting plate to rotate, thereby causing the lifting plate to rotate and driving the support column on the lifting plate to move downward, so as to realize the length detection of the workpiece by lowering the support column.

[0022] In one specific implementation scheme, the adjustment mechanism further includes a fine-tuning component, which includes an adjustment arc plate and a positioning element. The adjustment arc plate is mounted on the side wall of the support column, and the rotation axis of the adjustment arc plate is connected to the side wall of the lifting plate. The positioning element is mounted on the lifting plate and is used to position the adjustment arc plate.

[0023] By adopting the above technical solution, after the lifting component controls the support column to descend, the distance between the support column and the spinning machine can be finely adjusted by rotating the adjusting arc plate, and the adjusted support column can be positioned by the positioning component, thereby facilitating further improvement of the detection accuracy of the fixed length detection device.

[0024] In one specific implementation, the positioning component includes a positioning handle, a positioning block, a positioning sleeve, and a control plate. The positioning sleeve is mounted on the lifting plate, and the positioning block is slidably mounted on the positioning sleeve, penetrating through the sleeve. A positioning rod is mounted on one end of the positioning block, passing through the side wall of the lifting plate and slidably connected to it. The positioning handle is threaded onto the positioning rod and is used to position the adjusting arc plate. A limit plate is mounted on the side wall of the positioning block away from the positioning rod, and a return spring is mounted on the positioning block. One end of the return spring abuts against the side wall of the limit plate, and the other end abuts against the side wall of the positioning sleeve. A sliding rod is installed on the slider, one end of which passes through the lifting plate and is rotatably connected to the lifting plate. A control plate is installed on the lifting plate and is located between the connection between the lifting plate and the sliding rod and the lifting plate. One end of the control plate extends towards the positioning block. A control groove is formed on the top wall of the control plate, and the side wall of the control groove abuts against the side wall of the sliding rod. The end of the control plate near the positioning block abuts against the side wall of the positioning block. A locking block one is installed on the side wall of the positioning block, and a locking block two is installed on the side wall of the control plate. The locking block two is connected to the locking block one. A lifting plate is installed on the side wall of the support column and is connected to the sliding rod.

[0025] By adopting the above technical solution, when the lifting cylinder drives the lifting plate to rise and fall, the sliding rod cooperates with the piston rod of the lifting cylinder to make the lifting plate rise and fall more stably. During the process of the lifting plate rising, the sliding rod pushes the control plate towards the positioning block, thereby separating the locking block one and locking block two on the control plate, and causing the control plate to push the positioning block towards the adjusting arc plate, thereby separating the positioning handle from the adjusting arc plate, thus unlocking the adjusting arc plate. At the same time, during the process of the lifting plate rising, the lifting plate on the support column, driven by the sliding rod, pulls the support column towards the slider, thereby enabling the support column to fold and tighten.

[0026] In one specific implementation, the fixed-length detection device further includes a detection mechanism, which includes a detection disc, a housing, a sensor, a compression spring, a guide rod, and a sensing ring. The housing is installed at the end of the support column away from the lifting plate. The guide rod is installed inside the housing and penetrates through the housing. The detection disc is installed at the end of the guide rod located outside the housing. A receiving cavity is provided inside the housing. The sensing ring is installed on the side wall of the guide rod located inside the receiving cavity. A limiting ring for limiting the sensing ring is installed on the inner wall of the receiving cavity. The compression spring is installed on the guide rod, with one end connected to the sensing ring and the other end connected to the inner wall of the housing. The sensor is installed on the side wall of the housing and is used to detect the sensing ring.

[0027] By adopting the above technical solution, during detection, the distance between the housing and the spinning wheel is adjusted, and then the workpiece is spun on the spinning wheel. When the length of the workpiece increases to the point of contact with the detection plate, the detection plate drives the guide rod to move away from the spinning wheel, thereby moving the sensing ring towards the sensor. The sensor receives the signal from the sensing ring to control the separation of the spinning wheel from the workpiece, thus ensuring the accuracy of the workpiece length and maintaining the processing precision of the workpiece length. At the same time, the sensing ring is limited by a limiting ring and a compression spring, thereby reducing the possibility of the sensor falsely detecting the sensing ring.

[0028] In one specific implementation, both ends of the housing are fitted with seals for sealing the gap between the guide rod and the housing, and the accommodating cavity stores lubricating fluid.

[0029] By adopting the above technical solution, lubricating fluid is placed in the accommodating cavity to facilitate the sliding of the guide rod within the housing, thereby reducing the friction between the guide rod and the housing and improving the accuracy of the detection. The inclusion of a sealing element enhances the sealing performance of the housing, thus reducing lubricating fluid leakage.

[0030] In one specific implementation scheme, a cooling assembly is provided on the workbench. The cooling assembly includes a water tank and a cooling pipe. Both the water tank and the cooling pipe are installed on the workbench, and one end of the cooling pipe is connected to the water tank, while the other end is equipped with a nozzle for spraying coolant onto the workpiece.

[0031] By adopting the above technical solution, the coolant in the water tank is sprayed onto the workpiece using a nozzle, thereby facilitating the cooling of the workpiece during processing.

[0032] In summary, this application includes at least one of the following beneficial effects:

[0033] 1. This application sets up a fixed-length detection device to facilitate the detection of the length of the workpiece after processing. When the fixed-length detection device detects that the length of the processed workpiece meets the design requirements, it can promptly control the separation of the spinning roller from the workpiece, thereby improving the accuracy of workpiece processing.

[0034] 2. By setting up a moving component, this application facilitates the synchronization of the travel speed and distance between the fixed-length detection device and the spinning wheel, thereby improving the detection accuracy of the fixed-length detection device.

[0035] 3. This application establishes a testing mechanism to facilitate the inspection of the workpiece processing, thereby enabling the monitoring of the workpiece processing dimensions and facilitating timely control of the separation between the spinning roller and the workpiece, thus maintaining the workpiece processing accuracy. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the structure of the reverse rotation fixed length control device for the spinning machine in this application.

[0037] Figure 2 This is a schematic diagram of the fixed-length detection device in the embodiments of this application.

[0038] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0039] Figure 4 This is a bottom view of the lifting component in an embodiment of this application.

[0040] Figure 5 This is a top view of the lifting plate in an embodiment of this application.

[0041] Figure 6 yes Figure 5 Enlarged view of point B in the middle.

[0042] Figure 7 This is a schematic diagram of the installation of the lifting plate in an embodiment of this application.

[0043] Figure 8 This is a schematic diagram of the lifting plate in the lowest position in an embodiment of this application.

[0044] Figure 9 This is a schematic diagram of the lifting plate after it has risen in an embodiment of this application.

[0045] Figure 10 This is a schematic diagram of the structure of the testing mechanism in the embodiments of this application.

[0046] Figure 11 This is a cross-sectional view of the housing in an embodiment of this application.

[0047] Explanation of reference numerals in the attached figures:

[0048] 1. Workbench; 2. Spinning machine; 21. Mandrel; 22. Spinning wheel; 23. Positioning box; 24. Ejector pin; 3. Length detection device; 31. Adjustment mechanism; 311. Moving assembly; 3111. Crossbeam; 3112. Transmission rack; 3113. Servo motor; 3114. Slider; 3115. Drive gear; 3116. Slide rail; 3117. Grating ruler; 312. Lifting assembly; 3121. Lifting cylinder; 3122. Slide rod; 3123. Lifting plate; 3124. Support column; 3125. Mounting base; 3126. Upper limit block; 3127. Lower limit block; 3128. Slide seat; 3129. Fixing plate; 31210. Rotating shaft; 313. Fine adjustment assembly; 3131. Adjusting arc plate; 3132. Arc slide; 3133. Positioning hand 3134. Handle; 3135. Positioning sleeve; 3136. Return spring; 3137. Positioning block; 3138. Control board; 3139. Limiting plate; 31310. Positioning rod; 31311. Inclined surface two; 31312. Inclined surface one; 31313. Locking block one; 31314. Locking block two; 31315. Control spring; 31316. Control groove; 31317. Lifting plate; 31318. Lifting groove; 31319. Buffer block; 32. Buffer spring; 321. Detection mechanism; 322. Housing; 323. Detection disc; 324. Guide rod; 325. Limiting ring; 326. Sensing ring; 327. Sensor; 328. Compression spring; 329. Sealing element; 4. Cooling assembly; 41. Water tank; 42. Cooling pipe; 43. Nozzle. Detailed Implementation

[0049] The present application will be further described in detail below with reference to the accompanying drawings.

[0050] This application discloses a reverse-rotation fixed-length control system for a spinning mill, referring to... Figure 1 It includes the following steps:

[0051] Workpiece installation: The workpiece to be processed is installed on the spinning machine 2 on the worktable 1, so that the workpiece is positioned by the mandrel 21 on the spinning machine 2;

[0052] Start the system, activate the control system of the spinning machine 2, thereby controlling the rotation of the mandrel 21 of the spinning machine 2, adjusting the distance between the spinning wheel 22 and the mandrel 21, and activating the fixed length control system;

[0053] The system is adjusted by resetting the length control system to zero, so that the length detection device 3 moves to the initial position.

[0054] Spinning process: Control the operation of the spinning machine 2 system, control the spinning wheel 22 on the spinning machine 2 to move along the surface of the workpiece, thereby spinning the workpiece, and control the length detection device 3 to keep the speed and distance of the spinning wheel 22 consistent, use the length detection device 3 to detect the length of the workpiece, when the length detection device 3 touches the workpiece, control the spinning wheel 22 to separate from the workpiece, and control the spinning machine 2 system to stop spinning;

[0055] Workpiece unloading: The finished workpiece is unloaded.

[0056] This application also discloses a spinning mill reverse-rotation fixed-length control device, referring to... Figure 1 The system includes a worktable 1, with a spinning machine 2 mounted at one end of the worktable 1. The spinning machine 2 includes a mandrel 21 and a spinning wheel 22. The spinning machine 2 is prior art in this field and will not be described in detail here. A positioning box 23 is mounted at the other end of the worktable 1. A pin 24 for stabilizing the rotation of the mandrel 21 is mounted on the positioning box 23. A length detection device 3 is mounted on one side of the worktable 1 located at the positioning box 23.

[0057] Reference Figure 1 The workpiece is mounted on the mandrel 21 of the spinning machine 2, and the mandrel 21 is rotated. The distance between the spinning wheel 22 and the mandrel 21 is adjusted. At the same time, the distance between the fixed length detection device 3 and the spinning wheel 22 is adjusted. Then, the feed of the spinning wheel 22 is controlled, and the travel speed and travel distance of the spinning wheel 22 are kept consistent with the travel speed and travel distance of the fixed length detection device 3. In this way, the processing status of the workpiece on the mandrel 21 is detected, so as to maintain the processing accuracy of the workpiece.

[0058] Reference Figure 1 and Figure 2 The fixed length detection device 3 includes an adjustment mechanism 31, which includes a moving component 311. The moving component 311 includes a crossbeam 3111, a servo motor 3113, and a grating ruler 3117. The grating ruler 3117 is fixedly installed on the worktable 1 and is located in the direction of travel of the spinning wheel 22. A crossbeam 3111 is fixedly installed at the end of the workbench 1 away from the spinning machine 2, and the axis of the crossbeam 3111 along its length is parallel to the axis of the spinning wheel 22 along its travel direction. A slide rail 3116 is fixedly installed on the side wall of the crossbeam 3111 along its length. A transmission rack 3112 is also fixedly installed on the side wall of the crossbeam 3111 along its length. A slider 3114 is slidably installed on the crossbeam 3111 via the slide rail 3116. A servo motor 3113 is fixedly installed on the slider 3114. A drive gear 3115 is coaxially installed on the output shaft of the servo motor 3113. The drive gear 3115 meshes with the transmission rack 3112.

[0059] Reference Figure 3 and Figure 4 The adjusting mechanism 31 also includes a lifting assembly 312, which includes a lifting cylinder 3121, a lifting plate 3123, and a support column 3124. One end of the lifting plate 3123 is rotatably mounted on the side wall of the slider 3114, and the other end extends away from the slider 3114. A mounting base 3125 is rotatably mounted on the side wall of the slider 3114. The lifting cylinder 3121 is fixedly mounted on the mounting base 3125, and the piston rod of the lifting cylinder 3121 extends towards the lifting plate 3123. A rotating shaft 31210 is rotatably mounted on the lifting plate 3123, and the piston rod of the lifting cylinder 3121 is rotatably connected to the rotating shaft 31210.

[0060] Reference Figure 3 and Figure 4 A slide block 3128 is rotatably mounted on the side wall of the slider 3114. A slide rod 3122 is slidably mounted on the slide block 3128 in the vertical direction. A waist-shaped hole is opened on the top wall of the lifting plate 3123. One end of the slide rod 3122 passes through the waist-shaped hole of the lifting plate 3123 and extends downward. Fixing plates 3129 are fixedly mounted on both sides of the waist-shaped hole on the bottom wall of the lifting plate 3123. A rotating shaft 31210 passes through the fixing plates 3129 and the side wall of the slide rod 3122, and is rotatably connected to the slide rod 3122. An upper limit block 3126 and a lower limit block 3127 are fixedly mounted on the side wall of the slide rod 3122, and the upper limit block 3126 and the lower limit block 3127 are located on the upper and lower sides of the slide block 3128, respectively. The support column 3124 is rotatably mounted on the end of the lifting plate 3123 away from the slider 3114 via the fine-tuning component 313 in the horizontal direction, and the axis of the support column 3124 is parallel to the axis of the rotating shaft 31210.

[0061] Reference Figure 3 and Figure 4The lifting cylinder 3121 drives the lifting plate 3123 to rotate upward, thereby causing the lifting plate to move the support column 3124 upward. This causes the rotating shaft 31210 on the bottom wall of the lifting plate 3123 to move the sliding rod 3122 upward, which in turn causes the sliding rod 3122 to move the lower limit block 3127 upward. When the lower limit block 3127 moves to contact the bottom wall of the slide block 3128, the lifting plate 3123 and the support column 3124 rise to their maximum height. When the lifting cylinder drives the lifting plate 3123 to rotate downward, the lifting plate 3123 moves the support column 3124 downward. Furthermore, the lifting plate 3123, via the rotating shaft 31210, drives the sliding rod 3122 downward, causing the sliding rod 3122 to move the upper limit block 3126 downward. When the lower limit block 3126 moves to contact the top wall of the slide block 3128, the support column 3124 descends to its lowest position. As the lifting plate 3123 rises, the slide rod 3122, located above the rotating shaft 31210, deflects relative to the lifting plate 3123 towards the support column 3124, while the slide rod 3122 located below the rotating shaft 31210 deflects relative to the lifting plate 3123 away from the support column 3124.

[0062] Reference Figure 4 The fine-tuning component 313 includes an adjusting arc plate 3131 and a positioning element, the positioning element being mounted on the lifting plate 3123. One end of the adjusting arc plate 3131 is fixedly connected to the side wall of the support column 3124, and the other end extends upward. An arc-shaped slide rail 3132 is provided on the side wall of the adjusting arc plate 3131. By rotating the support column 3124 around the end of the lifting plate 3123, the adjusting arc plate 3131 slides along the side wall of the lifting plate 3123, thereby adjusting the angle between the support column 3124 and the lifting plate 3123. Then, the adjusting arc plate 3131 is positioned by the positioning element.

[0063] Reference Figure 4 and Figure 5The positioning components include a positioning handle 3133, a positioning block 3136, a positioning sleeve 3134, and a control plate 3137. The positioning sleeve 3134 is fixedly installed on the bottom wall of the lifting plate 3123 in a direction parallel to the support column 3124. The positioning block 3136 is slidably installed inside the positioning sleeve 3134, and one end of the positioning block 3136 extends outward from the positioning sleeve 3134. A positioning rod 3139 is fixedly installed at one end of the positioning block 3136 inside the positioning sleeve 3134. The positioning rod 3139 passes through the side wall of the lifting plate 3123 and extends outward. The positioning rod 3139 is slidably connected to the lifting plate 3123. The end of the positioning rod 3139 located outside the lifting plate 3123 is threaded. The positioning handle 3133 is threadedly installed at the end of the positioning rod 3139 located outside the lifting plate. A limiting plate 3138 is fixedly installed on the side wall of the positioning block 3136 away from the positioning rod 3139. A return spring 3135 is also installed on the positioning block 3136. One end of the return spring 3135 abuts against the side wall of the limiting plate 3138, and the other end abuts against the side wall of the positioning sleeve 3134.

[0064] Reference Figure 5 and Figure 6 The control plate 3137 is slidably mounted on the bottom wall of the lifting plate 3123 in a direction perpendicular to the rotating shaft 31210, and is located between two fixed plates 3129. The control plate 3137 is located above the rotating shaft 31210, and one end of the control plate 3137 extends towards the positioning block 3136. A control groove 31315 is provided on the top wall of the control plate 3137, through which the slide rod 3122 passes. The side wall of the control groove 31315 near the positioning block 3136 abuts against the side wall of the slide rod 3122. The end of the control plate 3137 near the positioning block 3136 has a first inclined surface 31311, and the end of the positioning block 3136 away from the positioning rod 3139 has a second inclined surface 31310. A gap is left between the side wall of the first inclined surface 31311 and the side wall of the second inclined surface 31310. A locking block 31312 is fixedly installed on the side wall of the positioning block 3136 at the second inclined plane 31310. A locking block 31313 is fixedly installed on the side wall of the control plate 3137 at the first inclined plane 31311. The locking block 31313 engages with the locking block 31312. A mounting groove is provided at the end of the control plate 3137 near the positioning block 3136. A control spring 31314 is installed in the mounting groove. One end of the control spring 31314 abuts against the bottom wall of the mounting groove, and the other end abuts against the side wall of the lifting plate 3123.

[0065] Reference Figure 5 and Figure 6When the lifting plate 3123 is raised, the slide bar 3122 located above the rotating shaft 31210 will shift relative to the lifting plate 3123 towards the positioning block 3136, thereby pushing the control plate 3137 towards the positioning block 3136, thus compressing the control spring 31314, and causing the locking block 2 31313 to separate from the locking block 1 31312, thereby causing the inclined surface 1 31311 to abut against the inclined surface 2 31310, thereby causing the control plate 31317 to push the positioning block 3136 towards the positioning sleeve 3134 and press the return spring 3135, thereby causing the positioning rod 3139 to drive the positioning handle 3133 to move away from the lifting plate 3123, thereby releasing the positioning function of the positioning handle 3133.

[0066] Reference Figure 5 and Figure 6 When the lifting plate 3123 descends, the slide rod 3122 located above the rotating shaft 31210 shifts away from the positioning block 3136 relative to the lifting plate 3123. This causes the control plate 3137 to slide towards the slide rod 3122 under the action of the control spring 31314, allowing the positioning block 3126 to move towards the control plate 3137 under the action of the return spring 3135. When the lifting plate 3123 descends to its lowest position, the second locking block 31313 on the control plate 3137 engages with the first locking block 31312 on the positioning block 3136, thereby positioning the positioning block 3136. At this time, the positioning handle 3133 resumes its positioning function.

[0067] Reference Figure 4 and Figure 7 A lifting plate 31316 is rotatably mounted on the side wall of the support column 3124, and the lifting plate 31316 is located below the rotating shaft 31210. A lifting groove 31317 is formed on the top wall of the lifting plate 31316, and a sliding rod 3122 passes through the lifting groove 31317. A positioning groove is formed on the side wall of the end of the lifting groove 31317 away from the support column 3124, and a buffer spring 31319 is installed in the positioning groove. One end of the buffer spring 31319 faces the sliding rod 3122. Extending in the direction, a sliding groove is provided on the side wall adjacent to the positioning groove in the lifting groove 31317. A buffer block 31318 is slidably connected to the lifting plate 31316 through the sliding groove. The buffer block 31318 is located between the buffer spring 31319 and the slide rod 3122, and the side wall of the buffer block 31318 near the slide rod 3122 abuts against the side wall of the slide rod 3122. The side wall of the buffer block 31318 near the buffer spring 31319 abuts against the buffer spring 31319.

[0068] Reference Figure 8 and Figure 9When the lifting plate 3123 rises, the control plate 3137 pushes the positioning block 3136 to move towards the positioning sleeve 3134, causing the positioning handle 3133 to release the positioning of the adjusting arc plate 3131. At this time, the buffer block 31318 and the slide rod 3122 remain in contact, thereby keeping the lifting plate 31316 stable through the buffer spring 31319, thus reducing the swaying of the support column 3124. Meanwhile, as the sliding rod 3122 located below the pivot 31210 rises, it will shift away from the support column 3124 relative to the lifting plate 3123. This causes the sliding rod 3122 to push the buffer block 31318 to move away from the support column 3124. Under the support of the buffer spring 31319, the buffer block 31318 drives the lifting plate 31316 to move away from the support column 3124. This causes the lifting plate 31316 to pull the support column 3124 to rotate, thereby controlling the deflection of the support column 3124 while the lifting plate 3123 rises. This makes it easier to fold and retract the lifting plate 3123 and the support column 3124.

[0069] Reference Figure 8 and Figure 9 When the lifting plate 3123 descends, the slide rod 3122 located below the rotating shaft 31210 deflects relative to the lifting plate 3123 towards the support column 3124. Simultaneously, the buffer block 31318, under the action of the buffer spring 31319, abuts against the slide rod 3122 to reduce swaying of the support column 3124 during the descent of the lifting plate 3123, thus reducing the impact on detection accuracy. When the lifting plate 3123 reaches its lowest position, the positioning handle 3133 resets and positions the adjusting arc plate 3131. At this point, by loosening the positioning handle 3133, the angle between the support column 3124 and the lifting plate 3123 is adjusted, allowing the support column 3124 to rotate to a suitable angle. Then, the positioning handle 3133 is tightened to position the adjusting arc plate 3131.

[0070] Reference Figure 8 and Figure 10 The fixed-length detection device 3 also includes a detection mechanism 32, which includes a detection disc 322, a housing 321, a sensor 326, a compression spring 327, a guide rod 323, and a sensing ring 325. The housing 321 is fixedly installed on the side wall of the support column 3124 away from the lifting plate 3123. The guide rod 323 is slidably installed on the housing 321 along the length direction of the crossbeam 3111. The detection disc 322 is fixedly installed on the end of the guide rod 323 away from the lifting plate 3123.

[0071] Reference Figure 10 and Figure 11The housing 321 has a cavity 329. The guide rod 323 passes through the cavity 329 and through the housing 321. A limiting ring 324 is fixedly installed on the inner wall of the cavity 329. A sensing ring 325 is fixedly installed on the side wall of the guide rod 323 within the cavity 329, and the sensing ring 325 is located between the limiting ring 324 and the inner wall of the cavity 329 at the end away from the detection disk 322. The inner diameter of the limiting ring 324 is smaller than the outer diameter of the sensing ring 325. A compression spring 327 is installed on the guide rod 323, with one end of the spring abutting against the side wall of the sensing ring 325 and the other end abutting against the inner wall of the cavity 329 at the end away from the detection disk 322. The cavity 329 stores lubricating fluid. Both ends of the housing 321 are fixedly installed with sealing elements 328, which are sealing rings, to seal the gap between the guide rod 323 and the housing 321.

[0072] Reference Figure 1 and Figure 11 When the spinning roller 22 thins the workpiece, the length of the workpiece increases. When the length of the workpiece increases to the point that it contacts the detection plate 322 and pushes the detection plate 322 to move, the detection plate 322 drives the guide rod 323 to move. This causes the guide rod 323 to drive the sensing ring 325 to move towards the sensor 326. As a result, the sensor 326 detects the signal from the sensing ring 325 and sends a signal to the control system of the spinning machine 2, thereby controlling the spinning roller 22 to separate from the workpiece and stop processing the workpiece.

[0073] Reference Figure 1 A cooling assembly 4 is installed on the workbench 1 at the spinning wheel 22. The cooling assembly 4 includes a water tank 41 and a cooling pipe 42. Both the water tank 41 and the cooling pipe 42 are installed on the workbench 1. The water tank 41 stores coolant and a water pump (not shown in the figure) is fixedly installed inside the water tank 41. One end of the cooling pipe 42 is connected to the outlet of the water pump in the water tank 41, and the other end of the cooling pipe 42 is fixedly installed with a nozzle 43. The nozzle 43 faces the workpiece on the mandrel 21.

[0074] The working principle of this embodiment is as follows: The tubular workpiece to be processed is placed on the mandrel 21, and the workpiece is positioned by the ejector pin 24. Then, the mandrel 21 is driven to rotate. The lifting assembly 312 controls the lifting plate 3123 to descend, and the servo motor 3113 drives the drive gear 3115 to rotate, thereby moving it along the transmission rack 3112 and causing the slider 3114 to move along the slide rail 3116, thus adjusting the distance between the spinning roller 22 and the detection plate 322. The spinning roller 22 is then controlled to perform spinning thinning processing on the workpiece. The traveling speed and distance of the spinning roller 22 are detected by the grating ruler 3117, and the servo motor 3113 controls the slider 3114 to maintain the same moving speed and distance as the spinning roller 22, thereby achieving workpiece length detection. During the spinning thinning process, the workpiece is cooled by the cooling assembly 4. After the spinning process is completed, the lifting assembly 312 controls the lifting plate 3123 to rise, thereby separating the inspection mechanism 32 from the workpiece and facilitating the unloading of the workpiece.

[0075] The above are preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made to the structure, shape and principle of this application should be included within the scope of protection of this application.

Claims

1. A spinning machine counter-rotation length control system, characterized by, Includes the following steps: Workpiece installation: The workpiece to be processed is installed on the spinning machine (2) on the worktable (1); Start the system, turn on the spinning machine system, and start the length control system; The system is adjusted to zero, and the fixed length detection device (3) is moved to the initial position. Spinning process, control the operation of the spinning machine system, use the spinning wheel (22) on the spinning machine (2) to spin the workpiece, detect the length of the workpiece through the fixed length detection device (3), and control the spinning machine system to stop spinning; Workpiece unloading: The finished workpiece is then unloaded. The fixed-length detection device (3) includes an adjustment mechanism (31), which includes a lifting assembly (312). The lifting assembly (312) includes a lifting cylinder (3121), a lifting plate (3123), and a support column (3124). One end of the lifting plate (3123) is mounted on the slider (3114), and the other end extends away from the slider (3114). The lifting cylinder (3121) is mounted on the slider (3114), and the piston rod of the lifting cylinder (3121) is connected to the side wall of the lifting plate (3123). The support column (3124) is mounted on the end of the lifting plate (3123) away from the slider (3114). The adjustment mechanism (31) also includes a fine-tuning group. The fine-tuning component (313) includes an adjusting arc plate (3131) and a positioning component. The adjusting arc plate (3131) is mounted on the side wall of the support column (3124), and the rotation axis of the adjusting arc plate (3131) is connected to the side wall of the lifting plate (3123). The positioning component is mounted on the lifting plate (3123) and is used to position the adjusting arc plate (3131). The positioning component includes a positioning handle (3133), a positioning block (3136), a positioning sleeve (3134), and a control plate (3137). The positioning sleeve (3134) is mounted on the lifting plate (3123), and the positioning block (3136) is slidably mounted on the positioning sleeve (3134). (3136) A positioning sleeve (3134) is passed through the positioning block (3136). A positioning rod (3139) is installed at one end of the positioning block (3136). The positioning rod (3139) passes through the side wall of the lifting plate (3123) and is slidably connected to the lifting plate (3123). The positioning handle (3133) is threaded onto the positioning rod (3139). The positioning handle (3133) is used to position the adjusting arc plate (3131). A limit plate (3138) is installed on the side wall of the positioning block (3136) away from the positioning rod (3139). A return spring (3135) is installed on the positioning block (3136). One end of the return spring (3135) abuts against the side wall of the limit plate (3138). One end of the slider (3114) abuts against the side wall of the positioning sleeve (3134). A sliding rod (3122) is installed on the slider (3114). One end of the sliding rod (3122) passes through the lifting plate (3123) and is rotatably connected to the lifting plate (3123). The control plate (3137) is installed on the lifting plate (3123) and is located between the connection between the lifting plate (3123) and the sliding rod (3122) and the lifting plate (3123). One end of the control plate (3137) extends toward the positioning block (3136). A control groove (31315) is provided on the top wall of the control plate (3137). The side wall of the control groove (31315) abuts against the side wall of the sliding rod (3122).The control plate (3137) abuts against the side wall of the positioning block (3136) at one end near the positioning block (3136). A locking block one (31312) is installed on the side wall of the positioning block (3136), and a locking block two (31313) is installed on the side wall of the control plate (3137). The locking block two (31313) is connected to the locking block one (31312). A lifting plate (31316) is installed on the side wall of the support column (3124), and the lifting plate (31316) is connected to the sliding rod (3122).

2. The anti-rotation length control system of a spinning machine according to claim 1, characterized in that: In the spinning process, the speed of the spinning wheel (22) is the same as the speed of the fixed length detection device (3).

3. The anti-rotation length control system of a spinning machine according to claim 1, characterized in that: In the spinning process, the distance between the spinning wheel (22) and the fixed length detection device (3) is adjustable.

4. The anti-rotation length control system of a spinning machine according to claim 1, characterized in that: The adjustment mechanism (31) includes a moving component (311), which includes a crossbeam (3111), a servo motor (3113), and a grating ruler (3117). The grating ruler (3117) is mounted on the workbench (1) and is located in the direction of travel of the spinning wheel (22). The grating ruler (3117) is used to detect the travel speed and travel distance of the spinning wheel (22). The crossbeam (3111) is mounted on the workbench (1), and a transmission rack (3112) is mounted on the side wall of the crossbeam (3111). A slider (3114) is slidably mounted on the crossbeam (3111). The servo motor (3113) is mounted on the slider (3114). A drive gear (3115) is coaxially mounted on the output shaft of the servo motor (3113). The transmission rack (3112) meshes with the drive gear (3115).

5. A spinning mill reverse-rotation fixed-length control system according to claim 1, characterized in that: The fixed-length detection device (3) further includes a detection mechanism (32), which includes a detection disc (322), a housing (321), a sensor (326), a compression spring (327), a guide rod (323), and a sensing ring (325). The housing (321) is installed at the end of the support column (3124) away from the lifting plate (3123). The guide rod (323) is installed inside the housing (321) and passes through the housing (321). The detection disc (322) is installed at the end of the guide rod (323) outside the housing (321). 1) An accommodating cavity (329) is provided inside. The sensing ring (325) is installed on the side wall of the guide rod (323) located inside the accommodating cavity (329). A limiting ring (324) for limiting the sensing ring (325) is installed on the inner wall of the accommodating cavity (329). The compression spring (327) is installed on the guide rod (323), and one end of the compression spring (327) is connected to the sensing ring (325), and the other end is connected to the inner wall of the housing (321). The sensor (326) is installed on the side wall of the housing (321), and the sensor (326) is used to detect the sensing ring (325).

6. A spinning machine counter-rotation length control system according to claim 5, wherein: Both ends of the housing (321) are equipped with sealing elements (328) for sealing the gap between the guide rod (323) and the housing (321), and the accommodating cavity (329) stores lubricating fluid.

7. The anti-rotation length control system of a spinning machine according to claim 1, characterized in that: The workbench (1) is equipped with a cooling component (4), which includes a water tank (41) and a cooling pipe (42). The water tank (41) and the cooling pipe (42) are both installed on the workbench (1), and one end of the cooling pipe (42) is connected to the water tank (41), while the other end is equipped with a nozzle (43). The nozzle (43) is used to spray coolant onto the workpiece.

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