Double-output-shaft driving headstock system of numerical control roll grinder and numerical control roll grinder

Abstract

The invention relates to the technical field of roll grinders, and discloses a numerical control roll grinder double-output-shaft driving headstock system and a numerical control roll grinder.The numerical control roll grinder double-output-shaft driving headstock system comprises a rack and a headstock assembly located at the top of the rack, the headstock assembly comprises a driving motor, the driving motor is fixedly connected to the top of the rack, and a mounting frame is fixedly connected to the top of the rack; and a mounting plate is fixedly connected to the top of the mounting frame, a main shaft is rotationally connected to one side of the driving motor, the main shaft is rotationally connected with the mounting plate, and a push plate is slidably connected to the top of the mounting frame. The double-output-shaft driving headstock system of the numerical control roll grinder and the numerical control roll grinder can effectively solve the problems that in the prior art, a roll shakes, contact between a grinding wheel and the surface of the roll is unstable, a grinding track deviates from a theoretical path, periodic ripples or vibration lines are formed on the surface of the roll, the surface roughness of the roll is reduced, and the service life of the roll is prolonged. And the dimensional precision and the surface quality of the roller are influenced.

Description

Technical Field

[0001] This invention relates to the field of roll grinding technology, specifically to a dual-output-shaft drive headstock system for CNC roll grinding and a CNC roll grinding machine. Background Technology

[0002] Roll grinding machines are metal grinding machine tools that repair or improve the surface quality, dimensional accuracy, and geometry of rolls through grinding processes. They are key equipment in industries such as metallurgy and machinery manufacturing to ensure the quality and production efficiency of rolled products. In the rolling process, the rolls are first installed on the headstock and tailstock of the machine tool. The headstock spindle uses servo motor direct drive technology to drive the rolls to rotate on the machine tool. Then, the grinding system is started to grind the surface of the rolls. The grinding parameters are adjusted in real time through a closed-loop control system to ensure the repair accuracy and surface quality so that the repaired rolls meet the rolling process requirements.

[0003] Currently, after a period of use, the motor shaft bearings in the servo motor that drives the headstock spindle of the roll grinding machine are prone to wear. This increases the bearing clearance, causing the motor shaft to wobble during the roll grinding process. This instability in the rotation of the headstock spindle leads to unstable rolling of the roll during the high-speed rotation of the roll. Consequently, the contact between the grinding wheel and the roll surface becomes unstable, causing the grinding trajectory to deviate from the theoretical path. This results in the diameter, roundness, and other geometrical accuracy of the ground roll product exceeding tolerances, affecting the accuracy and quality of the roll grinding process. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides a dual-output shaft drive headstock system for CNC roll grinding machine and a CNC roll grinding machine, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: In a first aspect, the present invention provides a dual-output-axis drive headstock system for a CNC roll grinding machine, comprising: The machine frame and a headframe assembly located at the top of the machine frame, the headframe assembly including a drive motor fixedly connected to the top of the machine frame, a mounting bracket fixedly connected to the top of the machine frame, a mounting plate fixedly connected to the top of the mounting bracket, a main shaft rotatably connected to one side of the drive motor, the main shaft rotatably connected to the mounting plate, a push plate slidably connected to the top of the mounting bracket, E-shaped frames fixedly connected to both ends of the push plate, an abutment roller rotatably connected to the inner side of the E-shaped frame, a push block slidably connected to the inner side of the mounting plate, and a first spring fixedly connected between the push block and the push plate.

[0006] Furthermore, a slide rail is provided on the inner side of the mounting plate, the push block is slidably connected inside the slide rail, a first slide frame is slidably connected inside the slide rail, a first conductive block is fixedly connected inside the first slide frame, an electromagnet is fixedly connected to the top of the mounting bracket, and a conductive strip is fixedly connected inside the E-shaped bracket.

[0007] Furthermore, a fixing block is fixedly connected inside the slide rail, and a second spring is fixedly connected between the fixing block and the first slide frame. A slide groove is opened inside the slide rail, and a slider is slidably connected inside the slide groove.

[0008] Furthermore, the slide is rotatably connected to a rotating column inside, and an inner connecting rod is rotatably connected to the outer surface of the rotating column. The end of the inner connecting rod away from the rotating column is rotatably connected to the slider. One end of the rotating column passes through the mounting plate and is fixedly connected to a first gear. A second gear is rotatably connected to the outer surface of the mounting plate, and a half-tooth ring is rotatably connected to the outer surface of the mounting plate.

[0009] Furthermore, a rotating plate is fixedly connected to the side of the semi-gear ring away from the mounting plate, an outer connecting rod is rotatably connected to the outer surface of the rotating plate, a rectangular frame is slidably connected to the outer surface of the mounting plate, and the end of the outer connecting rod away from the rotating plate is rotatably connected to the rectangular frame.

[0010] Furthermore, a slide rail is fixedly connected to the outer surface of the mounting plate, the rectangular frame is slidably connected inside the slide rail, and a third spring is fixedly connected between the rectangular frame and the slide rail.

[0011] Furthermore, a pusher is rotatably connected to one side of the pusher block, and a through hole is provided inside the slide rail, through which the pusher passes.

[0012] Furthermore, a telescopic cylinder is fixedly connected to the top of the mounting frame, a telescopic rod is slidably connected inside the telescopic cylinder, a connecting air pipe is fixedly connected to the bottom of the telescopic cylinder, a high-pressure air tank is fixedly connected to the top of the mounting frame, a second sliding frame is fixedly connected to the outer surface of the push block, and a second conductive block is fixedly connected inside the second sliding frame.

[0013] Furthermore, a telescopic support cylinder is fixedly connected to the inner side of the mounting plate, a telescopic support rod is slidably connected inside the telescopic support cylinder, and a square connecting pipe is fixedly connected between the telescopic support cylinder and the telescopic cylinder.

[0014] An alarm and a push-button switch are fixedly connected to the top of the mounting bracket, and a push-button rod is slidably connected inside the telescopic cylinder.

[0015] Secondly, this application provides a CNC roll grinding machine, including a CNC roll grinding machine body and the CNC roll grinding machine dual output shaft drive headstock system described in the first aspect.

[0016] The technical solution provided by this invention has the following advantages compared with the prior art: 1. During the rolling mill grinding process, when the rolling mill rotates smoothly, the present invention generates a small thrust on the push plate by setting a first spring, the push plate generates a small thrust on the E-shaped frame, the E-shaped frame generates a small thrust on the contact roller, and multiple contact rollers initially clamp and fix the main shaft.

[0017] 2. When the rotating spindle experiences slight wobbling during the roll grinding process, this invention utilizes a first spring to generate a large thrust on the push plate, which in turn generates a large thrust on the E-shaped frame, which in turn generates a large thrust on the contact rollers. Multiple contact rollers then exert a large clamping force on the wobbling spindle, quickly stabilizing it. This allows for proactive monitoring of spindle wobbling during roll grinding while effectively suppressing roll wobbling, ensuring stable contact between the grinding wheel and the roll surface, and maintaining the grinding wheel's grinding trajectory within the theoretical path. This prevents spindle wobbling caused by bearing wear, which could lead to roll wobbling during grinding and consequently affect the grinding accuracy and quality.

[0018] 3. When the rotating spindle is being processed by the roller grinding process, as the bearing wear intensifies, leading to increased shaking, this invention addresses this issue by setting a slider to reciprocate along a groove. As the slider moves towards the fixed block along the groove, it pushes the first sliding frame to quickly approach the fixed block along the slide rail. The first sliding frame then moves the first conductive block towards the fixed block, causing the first conductive block to move a certain distance relative to the conductive strip towards the fixed block. The electromagnet, through the push block, the first spring, the push plate, the E-shaped frame, and the contact roller, applies a strong magnetic force to the shaking spindle. Once the E-shaped frame pushes the shaking spindle back to its original position via the contact roller, the shaking spindle... After resetting, the conductive strip inside the E-shaped frame remains in contact with the first conductive block, achieving delayed contact between the conductive strip and the first conductive block. During this process, the current in the electromagnet still exists, the electromagnet still has good magnetism, and the electromagnet still "clamps and fixes" the reset spindle. This continuous "clamping and fixing" effect applies a constraint force to the spindle, making the spindle more stable in the reset position. This helps to further improve the suppression effect on the wobbling spindle, and thus helps to further improve the rotational stability during the roll grinding process, and improve the dimensional accuracy and surface quality of the roll.

[0019] 4. During the grinding process of the rotating spindle, if the bearing wear exceeds the preset critical limit and causes the rotating roll to shake violently, the compressed gas inside the high-pressure gas tank is triggered to quickly enter the interior of the two telescopic cylinders. The compressed gas inside the telescopic cylinders pushes the telescopic rods to move outward along the axis of the telescopic cylinders, so that the two telescopic rods strongly abut against the two sides of the two push plates. Under the squeezing action of the compressed gas, the two push plates forcefully pressurize and fix the shaking spindle through the E-shaped frame and the contact roller, quickly suppressing the shaking spindle. Before the equipment is forcibly stopped, the shaking roll can quickly return to a stable rotating state, ensuring processing quality and reducing product scrap rate.

[0020] 5. This invention involves introducing compressed gas from inside the telescopic cylinder through a square connector into the telescopic support cylinder. The compressed gas pushes the telescopic support rod inside the telescopic support cylinder to move outward. The moving telescopic support rod pushes the first sliding frame along the slide rail towards the fixed block. The first sliding frame drives the conductive strip to move a certain distance towards the fixed block, ensuring good contact between the moved conductive strip and the first conductive block. Current continuously flows through the electromagnet, and the magnetic force generated by the electromagnet continuously acts on the push plate. This allows the violently shaking spindle to quickly stabilize under the dual clamping and fixing effect of the electromagnet and the compressed gas, further improving the rotational stability during the roll grinding process.

[0021] 6. This invention uses compressed gas inside the telescopic cylinder to push the pressing rod outward along the axis of the telescopic cylinder. The moving pressing rod presses the switch at its end, activating the buzzer alarm. The buzzer alarm promptly emits a piercing sound to quickly attract the operator's attention, reminding the operator to immediately stop the equipment and perform relevant inspection and maintenance work to ensure the processing accuracy and quality of the subsequent grinding of the rolls. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 This is a schematic diagram of the drive motor in an embodiment of the present invention; Figure 3 This is a schematic diagram of the mounting bracket in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the contact roller in an embodiment of the present invention; Figure 5 This is a schematic diagram of the E-shaped frame in an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the second sliding frame in an embodiment of the present invention; Figure 7 This is a schematic diagram of the high-pressure gas tank in an embodiment of the present invention; Figure 8 This is a schematic diagram of the slide structure in an embodiment of the present invention; Figure 9 This is a schematic diagram of the through hole structure in an embodiment of the present invention; Figure 10 This is a schematic diagram of the structure of the rotating plate in an embodiment of the present invention; Figure 11 This is a schematic diagram of the pusher wheel in an embodiment of the present invention; Figure 12 This is a schematic diagram of the structure of the half-tooth ring in an embodiment of the present invention; Figure 13 This is a cross-sectional structural diagram of the mounting plate in an embodiment of the present invention.

[0024] The labels in the diagram represent: 1. Frame; 11. Headstock assembly; 12. Roll; 2. Drive motor; 21. Mounting bracket; 22. Mounting plate; 23. Main shaft; 24. Push plate; 25. E-frame; 26. Abutment roller; 27. Push block; 28. First spring; 3. Slide rail; 31. First slide frame; 32. First conductive block; 33. Electromagnet; 34. Conductive strip; 4. Fixing block; 41. Second spring; 42. Slide groove; 43. Slider; 5. Rotating column; 51. Internal connection. 52. Rod; 53. First gear; 54. Second gear; 55. Half gear ring; 6. Turning plate; 61. External connecting rod; 62. Rectangular frame; 621. Slide rail; 622. Third spring; 7. Push wheel; 71. Through hole; 8. Telescopic cylinder; 81. Telescopic rod; 82. Connecting air pipe; 83. High-pressure air tank; 84. Second slide frame; 85. Second conductive block; 9. Telescopic support cylinder; 91. Telescopic support rod; 92. Square connecting pipe; 93. Alarm; 94. Press switch; 95. Press rod. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0026] The present invention will be further described below with reference to embodiments. Example 1: Please refer to Figures 1-13 This invention provides a technical solution: a dual-output-axis drive headstock system for a CNC roll grinding machine, comprising:

[0027] The frame 1 and the head frame assembly 11 located on top of the frame 1. The head frame assembly 11 includes a drive motor 2, which is fixedly connected to the top of the frame 1. A mounting frame 21 is fixedly connected to the top of the frame 1. A mounting plate 22 is fixedly connected to the top of the mounting frame 21. A main shaft 23 is rotatably connected to one side of the drive motor 2. The main shaft 23 is rotatably connected to the mounting plate 22. A push plate 24 is slidably connected to the top of the mounting frame 21. E-shaped frames 25 are fixedly connected to both ends of the push plate 24. An abutment roller 26 is rotatably connected to the inner side of the E-shaped frame 25. A push block 27 is slidably connected to the inner side of the mounting plate 22. A first spring 28 is fixedly connected between the push block 27 and the push plate 24.

[0028] The mounting plate 22 has a slide rail 3 on its inner side. The push block 27 is slidably connected inside the slide rail 3. The slide rail 3 has a first slide frame 31 slidably connected inside. The first slide frame 31 has a first conductive block 32 fixedly connected inside. The top of the mounting bracket 21 has an electromagnet 33 fixedly connected. The E-shaped bracket 25 has a conductive strip 34 fixedly connected inside.

[0029] A fixing block 4 is fixedly connected inside the slide rail 3. A second spring 41 is fixedly connected between the fixing block 4 and the first slide frame 31. A slide groove 42 is opened inside the slide rail 3. A slider 43 is slidably connected inside the slide groove 42.

[0030] The slide 3 is rotatably connected to a rotating column 5. The outer surface of the rotating column 5 is rotatably connected to an inner connecting rod 51. The end of the inner connecting rod 51 away from the rotating column 5 is rotatably connected to the slider 43. One end of the rotating column 5 passes through the mounting plate 22 and is fixedly connected to a first gear 52. The outer surface of the mounting plate 22 is rotatably connected to a second gear 53. The outer surface of the mounting plate 22 is rotatably connected to a half-tooth ring 54.

[0031] A rotating plate 6 is fixedly connected to the side of the half-tooth ring 54 away from the mounting plate 22. An outer connecting rod 61 is rotatably connected to the outer surface of the rotating plate 6. A rectangular frame 62 is slidably connected to the outer surface of the mounting plate 22. The end of the outer connecting rod 61 away from the rotating plate 6 is rotatably connected to the rectangular frame 62.

[0032] A slide rail 621 is fixedly connected to the outer surface of the mounting plate 22. A rectangular frame 62 is slidably connected inside the slide rail 621. A third spring 622 is fixedly connected between the rectangular frame 62 and the slide rail 621.

[0033] A pusher 7 is rotatably connected to one side of the pusher block 27, and a through hole 71 is opened inside the slide 3, through which the pusher 7 passes.

[0034] The top of the mounting bracket 21 is fixedly connected to a telescopic cylinder 8, the inside of the telescopic cylinder 8 is slidably connected to a telescopic rod 81, the bottom of the telescopic cylinder 8 is fixedly connected to a connecting air pipe 82, the top of the mounting bracket 21 is fixedly connected to a high-pressure air tank 83, the outer surface of the push block 27 is fixedly connected to a second sliding frame 84, and the inside of the second sliding frame 84 is fixedly connected to a second conductive block 85.

[0035] A telescopic support cylinder 9 is fixedly connected to the inner side of the mounting plate 22. A telescopic support rod 91 is slidably connected inside the telescopic support cylinder 9. A square pipe 92 is fixedly connected between the telescopic support cylinder 9 and the telescopic cylinder 8.

[0036] An alarm 93 and a push-button switch 94 are fixedly connected to the top of the mounting bracket 21, and a push-button rod 95 is slidably connected inside the telescopic cylinder 8.

[0037] Working principle: Dual-axis drive technology: In practical applications, such as Figure 1 As shown, by starting the two drive motors 2 above the frame 1, the two drive motors 2 drive the two spindles 23 to rotate on the mounting plate 22. The two spindles 23 are located at both ends of the roll 12, driving the roll 12 to rotate on the frame 1. Then, the grinding system is started to grind the surface of the roll 12. During the process of the rotating grinding wheel contacting the surface of the roll 12, the grinding wheel grinds and removes defects such as cracks and fatigue layers on the surface of the roll 12, repairing the dimensional accuracy and surface quality of the roll 12 so that the repaired roll 12 meets the rolling process requirements. In this process, the two rotating spindles 23 drive the roll 12 to rotate above the frame 1. The dual-axis drive can better resist external interference such as feed speed fluctuations, impacts or shaking, and maintain the stability of the grinding process. In addition, the dual-axis design reduces the load on the single bearing by dispersing the grinding force, reducing mechanical wear, thereby extending the service life of the roll 12 and the grinding machine.

[0038] Anti-sway technology for roll 12: In practical applications, such as Figure 4 and Figure 5 As shown, with the continuous rotation of the main shaft 23, two push plates 24 are provided on both sides of the main shaft 23. A first spring 28 is fixedly connected between the two push plates 24 and the push block 27. When the rotating main shaft 23 and the roller 12 rotate smoothly, the compression deformation of the first spring 28 is small (see...). Figure 5 The first spring 28 exerts a small thrust on the push plate 24, the push plate 24 exerts a small thrust on the E-shaped brackets 25 at both ends, and the E-shaped brackets 25 exert a small thrust on the internal abutting rollers 26. Figure 4As shown, multiple abutment rollers 26 initially clamp and fix the main shaft 23 inside, ensuring that the main shaft 23 rotates stably on the mounting plate 22. At this time, the friction between the abutment rollers 26 and the rotating main shaft 23 is small, reducing the wear of the main shaft 23 and extending the service life of the main shaft 23.

[0039] As a further embodiment of the present invention, when the rotating main shaft 23 and the roll 12 experience slight wobbling, such as Figure 4 , Figure 5 and Figure 7 As shown, the swaying main shaft 23 pushes the contact rollers 26 on both sides of it closer to the electromagnet 33 along the length of the slide rail 3. The contact rollers 26 drive the E-shaped frames 25 at both ends of them to move closer to the electromagnet 33 along the length of the slide rail 3. The E-shaped frames 25 drive the conductive strips 34 inside them to move closer to the electromagnet 33 along the length of the slide rail 3. Figure 7 As shown, the moving conductive strip 34 contacts the first conductive block 32 inside the first sliding frame 31, so that the two first conductive blocks 32 inside the first sliding frame 31 form a conductive path through the conductive strip 34. A closed loop is formed between the two first conductive blocks 32 and the electromagnet 33. During the process of current passing through the electromagnet 33, the electromagnet 33 generates a strong magnetic force. Under the action of the magnetic force of the electromagnet 33, the electromagnet 33 pushes the push block 27 along the length of the slide 3 towards the push plate 24 through the magnet on the outer surface of the push block 27. The push block 27 drives one end of the first spring 28 to move rapidly towards the push plate 24, causing the compression deformation of the first spring 28 to increase rapidly (see reference). Figure 8 The first spring 28 exerts a large thrust on the push plate 24, the push plate 24 exerts a large thrust on the E-shaped frames 25 at both ends, and the E-shaped frames 25 exert a large thrust on the internal abutting rollers 26. Figure 4 As shown, multiple contact rollers 26 exert a large clamping force on the internally wobbling spindle 23. Under the action of this large clamping force, the slightly wobbling spindle 23 is quickly stabilized, thereby effectively suppressing the wobbling of the roll 12, ensuring stable contact between the grinding wheel and the surface of the roll 12, and ensuring that the grinding trajectory of the grinding wheel conforms to the theoretical path. This avoids the situation where the wear of the bearings in the spindle 23 causes the spindle 23 to wobble during operation, which would lead to the roll 12 wobbling during the grinding process and thus affect the grinding accuracy and quality of the roll 12.

[0040] In practical applications, when the rotating spindle 23 and the roll 12 wobble significantly, the spindle 23 has strong wobbling energy. The electromagnet 33 applies a strong magnetic force to the wobbling spindle 23 through the push block 27, the first spring 28, the push plate 24, the E-shaped frame 25, and the abutting roller 26. After the E-shaped frame 25 pushes the wobbling spindle 23 back to its original position through the abutting roller 26, the conductive strip 34 inside the E-shaped frame 25 separates from the first conductive block 32 inside the first slide frame 31. The current on the electromagnet 33 disappears, the electromagnet 33 loses its magnetism, and the "strong clamping force" of the electromagnet 33 on the spindle 23 disappears instantly. The kinetic energy (wobbling energy) of the spindle 23 itself is not sufficiently suppressed and dissipated. Under the action of the remaining kinetic energy, the spindle 23 will deviate from the reset position again, and the spindle 23 and the roll 12 will continue to wobble, thus affecting the dimensional accuracy and surface quality of the roll 12.

[0041] To overcome the above difficulties, this application adopts the following technical solution: As a further embodiment of the present invention, such as Figure 8 , Figure 9 and Figure 10 As shown, as the push block 27 moves closer to the push plate 24 along the length of the slide 3, the push block 27 drives the push wheel 7 on one side to move closer to the rotating plate 6 along the through hole 71, as... Figure 10 As shown, as the pusher 7 approaches the rotating plate 6, it pushes the rectangular frame 62 inside the slide rail 621 closer to the rotating plate 6 along the slide rail 621. The rectangular frame 62 drives one end of the outer connecting rod 61 to approach the rotating plate 6 along the slide rail 621, causing the outer connecting rod 61 to push the rotating plate 6 to rotate around its axis through its other end, causing the rotating plate 6 to rotate 180 degrees around its own axis. As the pusher 27 approaches the electromagnet 33 along the length of the slide rail 3, the pusher 27 drives the pusher 7 on one side to gradually move away from the rotating plate 6 along the through hole 71, as... Figure 10 As shown, under the elastic action of the third spring 622, the third spring 622 pulls the rectangular frame 62 away from the rotating plate 6 along the slide rail 621. The rectangular frame 62 drives one end of the outer connecting rod 61 away from the rotating plate 6 along the slide rail 621, so that the outer connecting rod 61 pulls the rotating plate 6 to continue rotating around the axis of the rotating plate 6 through its other end, so that the rotating plate 6 rotates 180 degrees around its own axis again. Thus, it can be seen that when the push block 27 moves closer to the push plate 24, the rotating plate 6 rotates 180 degrees around its own axis. When the push block 27 moves closer to the electromagnet 33, the rotating plate 6 rotates 180 degrees around its own axis.

[0042] Combined Figure 11 and Figure 12 It can be seen that as the pusher block 27 moves closer to the pusher plate 24, the rotating plate 6 rotates 180 degrees around its own axis. The rotating plate 6 drives the inner half-tooth ring 54 to rotate around the axis of the first gear 52, as shown in the figure. Figure 12As shown, during the process of the half-gear ring 54 rotating 180 degrees counterclockwise around the axis of the first gear 52, the half-gear ring 54 drives the second gear 53 to rotate around the axis of the second gear 53 through the teeth on its inner wall. The second gear 53 drives the first gear 52 to rotate around the axis of the first gear 52, causing the first gear 52 to rotate 360 ​​degrees around its own axis. During the process of the push block 27 approaching the electromagnet 33, the rotating plate 6 rotates 180 degrees around its own axis again. The rotating plate 6 drives the half-gear ring 54 to rotate 180 degrees counterclockwise around the axis of the first gear 52 again. During this process, the half-gear ring 54 cannot drive the second gear 53 to rotate through the teeth on its inner wall. Therefore, during this process, neither the second gear 53 nor the first gear 52 rotates. Thus, it can be seen that during the process of the push block 27 approaching the push plate 24, the first gear 52 rotates 180 degrees around its own axis, and during the process of the push block 27 approaching the electromagnet 33, the first gear 52 does not rotate.

[0043] Combined Figure 13 It can be seen that during the process of push block 27 approaching push plate 24, first gear 52 drives rotating column 5 to rotate around its own axis for one revolution. During the process of rotating column 5 from 0 degrees to 180 degrees around its own axis, rotating column 5 drives one end of inner connecting rod 51 to rotate around the axis of rotating column 5 from 0 degrees to 180 degrees. Inner connecting rod 51 pushes slider 43 along slide groove 42 towards fixed block 4 through its other end. During the process of rotating column 5 from 180 degrees to 360 degrees around its own axis, rotating column 5 drives one end of inner connecting rod 51 to rotate around the axis of rotating column 5 from 180 degrees to 360 degrees. At 160 degrees, the inner connecting rod 51 pulls the slider 43 along the slide groove 42 towards the rotating column 5 via its other end. Therefore, during the process of the push block 27 approaching the push plate 24, the slider 43 slides back and forth along the slide groove 42 once. Furthermore, as the slider 43 approaches the fixed block 4 along the slide groove 42, it pushes the first sliding frame 31 on one side along the slide rail 3 towards the fixed block 4. The first sliding frame 31 then moves the first conductive block 32 inside it towards the fixed block 4, causing the first conductive block 32 to move a certain distance relative to the conductive strip 34 towards the fixed block 4 (see reference). Figure 7 ).

[0044] like Figure 7 As shown, when the rotating spindle 23 and roller 12 wobble significantly, the electromagnet 33 applies a strong magnetic force to the wobble spindle 23 through the push block 27, the first spring 28, the push plate 24, the E-shaped frame 25, and the contact roller 26. After the E-shaped frame 25 pushes the wobble spindle 23 back to its original position through the contact roller 26, although the E-shaped frame 25 drives the conductive strip 34 inside it to complete the reset, the first conductive block 32 moves a certain distance relative to the conductive strip 34 towards the fixed block 4 (see...). Figure 7Therefore, the conductive strip 34 inside the E-shaped frame 25 remains in contact with the first conductive block 32, the current in the electromagnet 33 remains, the electromagnet 33 still has good magnetism, and the electromagnet 33 continues to "clamp and fix" the reset spindle 23. This continuous "clamping and fixing" effect applies a constraint force to the spindle 23, promoting the spindle 23 to further consume the energy generated by the shaking, making the spindle 23 more stable in the reset position, which helps to further improve the suppression effect on the shaking spindle 23, and thus helps to further improve the rotational stability of the roll 12 during the grinding process, and improve the dimensional accuracy and surface quality of the roll 12.

[0045] In practical applications, when the rotating spindle 23 and the roll 12 vibrate violently, the vibration energy of the spindle 23 is further enhanced. The electromagnetic force of the electromagnet 33 is used to clamp and fix the violently vibrating spindle 23, but the fixing effect is limited. The spindle 23 and the roll 12 are still in a vibrating state, which affects the dimensional accuracy and surface quality of the roll 12.

[0046] To overcome the above difficulties, this application adopts the following technical solution: As a further embodiment of the present invention, such as Figure 4 and Figure 5 As shown, during the process of push block 27 moving towards push plate 24 along the length of slide 3, push block 27 drives the second slide frame 84 on one side to move towards push plate 24 along the length of slide 3. The second slide frame 84 drives the second conductive block 85 inside it to move towards push plate 24, so that the second conductive block 85 moves to the side of the conductive strip 34 inside E-shaped frame 25. When the main shaft 23 shakes violently, the shaking main shaft 23 pushes the abutment rollers 26 on both sides to move towards electromagnet 33 along the length of slide 3, abutting... Roller 26 drives the E-shaped frames 25 at both ends to move closer to electromagnet 33 along the length of slide rail 3. The E-shaped frames 25 drive the conductive strips 34 inside them to move closer to electromagnet 33 along the length of slide rail 3. The moving conductive strips 34 contact the second conductive blocks 85 inside the second slide frame 84, so that the two second conductive blocks 85 inside the second slide frame 84 form a conductive path through the conductive strips 34. A closed loop is formed between the two second conductive blocks 85 and the solenoid valve (located at one end of the high-pressure gas tank 83). Figure 7As shown, the solenoid valve opens the outlet of the high-pressure gas tank 83, and the compressed gas inside the high-pressure gas tank 83 quickly enters the interior of the two telescopic cylinders 8. The compressed gas inside the telescopic cylinders 8 pushes the telescopic rods 81 to move outward along the axis of the telescopic cylinders 8, so that the two telescopic rods 81 strongly abut against the two sides of the two push plates 24. Under the squeezing action of the compressed gas, the two push plates 24 forcefully pressurize and fix the swaying main shaft 23 through the E-shaped frame 25 and the contact roller 26, quickly suppressing the swaying main shaft 23. Before the equipment is forcibly stopped, the swaying roller 12 can quickly return to a stable rotation state, ensuring processing quality and reducing the product scrap rate.

[0047] like Figure 7 As shown, the compressed gas inside the telescopic cylinder 8 enters the interior of the telescopic support cylinder 9 through the square connector 92. The compressed gas pushes the telescopic support rod 91 inside the telescopic support cylinder 9 to move outward along the axis of the telescopic support cylinder 9. The moving telescopic support rod 91 pushes the first sliding frame 31 to move along the slide rail 3 towards the fixed block 4. The first sliding frame 31 drives the conductive strip 34 inside it to move a certain distance towards the fixed block 4, so that the moved conductive strip 34 maintains good contact with the first conductive block 32. Current continuously flows through the electromagnet 33, and the magnetic force generated by the electromagnet 33 continuously acts on the push plate 24, so that the violently shaking main shaft 23 is quickly stabilized under the dual clamping and fixing action of the electromagnet 33 and the compressed gas, thereby improving the dimensional accuracy and surface quality of the roll 12.

[0048] like Figure 6 and Figure 7 As shown, the compressed gas inside the telescopic cylinder 8 pushes the pressing rod 95 to move outward along the axis of the telescopic cylinder 8. The moving pressing rod 95 presses the pressing switch 94 at its end, which turns on the alarm 93. The alarm 93 is preferably a buzzer alarm. The buzzer alarm emits a piercing sound in time to quickly attract the operator's attention and remind the operator to stop the equipment operation immediately and carry out relevant inspection and maintenance work to ensure the processing accuracy and quality of the subsequent grinding of the roll 12.

[0049] Example 2: This application provides a CNC roll grinding machine, including a CNC roll grinding machine body, which is adapted to the dual output shaft drive headstock system of the CNC roll grinding machine described in Example 1.

[0050] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A dual-output-axis drive headstock system for a CNC roll grinding machine, comprising a frame (1) and a headstock assembly (11) located at the top of the frame (1), characterized in that: The head frame assembly (11) includes a drive motor (2), which is fixedly connected to the top of the frame (1). A mounting bracket (21) is fixedly connected to the top of the frame (1), and a mounting plate (22) is fixedly connected to the top of the mounting bracket (21). A main shaft (23) is rotatably connected to one side of the drive motor (2), and the main shaft (23) is rotatably connected to the mounting plate (22). A push plate (24) is slidably connected to the top of the mounting bracket (21), and E-shaped frames (25) are fixedly connected to both ends of the push plate (24). An abutment roller (26) is rotatably connected to the inner side of the E-shaped frame (25), and a push block (27) is slidably connected to the inner side of the mounting plate (22). A first spring (28) is fixedly connected between the push block (27) and the push plate (24).

2. The dual-output-shaft drive headstock system for CNC roll grinding machine according to claim 1, characterized in that: The mounting plate (22) has a slide rail (3) on its inner side. The push block (27) is slidably connected inside the slide rail (3). The slide rail (3) is slidably connected inside the slide rail (3). The first sliding frame (31) is fixedly connected inside the first sliding frame (31). The top of the mounting bracket (21) is fixedly connected to an electromagnet (33). The E-shaped bracket (25) is fixedly connected to a conductive strip (34).

3. The dual-output-shaft drive headstock system for CNC roll grinding machine according to claim 2, characterized in that: A fixing block (4) is fixedly connected inside the slide (3), and a second spring (41) is fixedly connected between the fixing block (4) and the first slide frame (31). A slide groove (42) is opened inside the slide (3), and a slider (43) is slidably connected inside the slide groove (42).

4. The dual-output-shaft drive headstock system for CNC roll grinding machine according to claim 3, characterized in that: The slide (3) is rotatably connected to a rotating column (5), and the outer surface of the rotating column (5) is rotatably connected to an inner connecting rod (51). The end of the inner connecting rod (51) away from the rotating column (5) is rotatably connected to the slider (43). One end of the rotating column (5) passes through the mounting plate (22) and is fixedly connected to a first gear (52). The outer surface of the mounting plate (22) is rotatably connected to a second gear (53), and the outer surface of the mounting plate (22) is rotatably connected to a half-tooth ring (54).

5. The dual-output-shaft drive headstock system for CNC roll grinding machine according to claim 4, characterized in that: A rotating plate (6) is fixedly connected to the side of the semi-gear ring (54) away from the mounting plate (22). An outer connecting rod (61) is rotatably connected to the outer surface of the rotating plate (6). A rectangular frame (62) is slidably connected to the outer surface of the mounting plate (22). The end of the outer connecting rod (61) away from the rotating plate (6) is rotatably connected to the rectangular frame (62).

6. The dual-output-shaft drive headstock system for a CNC roll grinding machine according to claim 5, characterized in that: The outer surface of the mounting plate (22) is fixedly connected to a slide rail (621), the rectangular frame (62) is slidably connected inside the slide rail (621), and a third spring (622) is fixedly connected between the rectangular frame (62) and the slide rail (621).

7. The dual-output-shaft drive headstock system for a CNC roll grinding machine according to claim 2, characterized in that: The pusher (27) is rotatably connected to a pusher (7) on one side, and a through hole (71) is provided inside the slide (3), through which the pusher (7) passes.

8. The dual-output-shaft drive headstock system for a CNC roll grinding machine according to claim 1, characterized in that: The top of the mounting bracket (21) is fixedly connected to a telescopic cylinder (8), the inside of the telescopic cylinder (8) is slidably connected to a telescopic rod (81), the bottom of the telescopic cylinder (8) is fixedly connected to a connecting air pipe (82), the top of the mounting bracket (21) is fixedly connected to a high-pressure air tank (83), the outer surface of the push block (27) is fixedly connected to a second sliding frame (84), and the inside of the second sliding frame (84) is fixedly connected to a second conductive block (85).

9. The dual-output-shaft drive headstock system for a CNC roll grinding machine according to claim 8, characterized in that: The inner side of the mounting plate (22) is fixedly connected to a telescopic support cylinder (9), and a telescopic support rod (91) is slidably connected inside the telescopic support cylinder (9). A square pipe (92) is fixedly connected between the telescopic support cylinder (9) and the telescopic cylinder (8). An alarm (93) and a push switch (94) are fixedly connected to the top of the mounting bracket (21), and a push rod (95) is slidably connected inside the telescopic cylinder (8).

10. A CNC roll grinding machine, characterized in that: It includes the body of a CNC roll grinding machine and the dual output shaft drive headstock system of the CNC roll grinding machine as described in claims 1-9.

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