Automatic polishing device for long core rod

Abstract

The utility model discloses an automatic polishing device for a long core rod. The automatic polishing device comprises a clamping and rotating module, a polishing module, a safety protection module, a control module and a dust removal module. The clamping and rotating module comprises a clamping assembly and a rotating assembly for driving the clamping assembly and the core rod to rotate; the polishing module comprises a polishing machine, a front-back moving assembly driving the polishing machine to move front and back and a left-right moving assembly driving the polishing machine to move left and right. The control module comprises a control cabinet, and a PLC is arranged in the control cabinet; by arranging the clamping and rotating module, the polishing module and the control module, the core rod polishing efficiency is improved, automatic polishing operation is achieved, dust in the polishing process is sucked away in time by arranging the dust removal module, influences on the environment are avoided, and the production efficiency is improved. And by arranging the safety protection module, it is guaranteed that the polishing process is conducted in a closed environment all the time, no harm is caused to the human body, and the operation safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of core rod polishing equipment, in particular to an automatic polishing device for a long core rod. Background Art

[0002] Rollers and long mandrels are needed for rolling aluminum alloy tubes. After a few days of use, some aluminum will stick to the rollers and mandrels, which need to be removed and polished in time, otherwise pits, sand holes and other defects will appear on the surface of the aluminum tube after rolling. At present, the common way to polish long mandrels is manual polishing. When polishing, the operator first clamps the long mandrel on the lathe, then starts the lathe to rotate at high speed, and polishes from one end to the other with sandpaper by hand, repeating this process many times until the mandrel is polished and the aluminum sticking to the stress area of ​​the mandrel is polished clean.

[0003] This operation method has great safety risks. Once the core rod is accidentally thrown out during the polishing process, it may cause harm to the employee's body. If the dust in the grinding process cannot be handled in time, it will spread into the air and cause environmental pollution.

[0004] Moreover, manual operation takes a long time, the grinding effect cannot be kept stable, and the labor intensity is increased, which is time-consuming and labor-intensive. Summary of the invention

[0005] The technical problem to be solved by the utility model is to provide an automatic polishing device for a long mandrel, which can solve the problems that manual operation is time-consuming and labor-intensive, and safety and environmental protection cannot be guaranteed.

[0006] In order to solve the above technical problems, the technical solutions adopted by the present utility model are as follows.

[0007] An automatic polishing device for a long mandrel, comprising a clamping and rotating module, a polishing module, a safety protection module, a control module, and a dust removal module, wherein the clamping and rotating module and the polishing module are mounted on a base inside a polishing box, the safety protection module is mounted on a side of the polishing box, and the control module and the dust removal module are arranged on one side of the polishing box; the clamping and rotating module comprises a clamping assembly and a rotating assembly for driving the clamping assembly and the mandrel to rotate; the polishing module comprises a polishing machine and a forward and backward moving assembly for driving the polishing machine to move forward and backward and a left and right moving assembly for driving the polishing machine to move left and right; the control module comprises a control cabinet, and a PLC controller is arranged inside the control cabinet.

[0008] The above-mentioned automatic polishing device for a long core rod, the clamping assembly includes a three-jaw chuck installed inside the polishing box for clamping the large end of the core rod and a tail stock for clamping the small end of the core rod, the tail stock is slidably set on the first slide rail on the right side of the three-jaw chuck, and a pointed cone portion is provided on the left side of the tail stock for inserting into the round hole of the small end of the core rod, and the controlled end of the three-jaw chuck is connected to the output end of the PLC controller.

[0009] The above-mentioned automatic polishing device for a long core rod, the left and right moving assembly includes a slide plate slidably set on the second slide rail in the polishing box, the top surface of the slide plate is provided with a first rack horizontally set along the left and right directions, the first rack is meshed with the first gear in the left and right gear box plates at the top of the slide plate, the first gear is driven by the first motor inside the left and right gear box plates, and the controlled end of the first motor is connected to the output end of the PLC controller.

[0010] The above-mentioned automatic polishing device for a long core rod, the forward and backward moving component includes a second rack arranged on the top of the left and right gear box plates, the second rack is arranged horizontally in the forward and backward direction, the second rack is meshed with the second gear in the front and rear gear box plates above the left and right gear box plates, and a second motor that drives the second gear to rotate is installed inside the front and rear gear box plates, and the controlled end of the second motor is connected to the output end of the PLC controller.

[0011] The above-mentioned automatic polishing device for a long core rod, the polishing machine includes a driving wheel, a first driven wheel, a second driven wheel, a third driven wheel and a grinding sandpaper sleeved on the outside of the driving wheel, the first driven wheel, the second driven wheel and the third driven wheel to form a quadrilateral; the driving wheel is installed on the top of the front and rear gear box plates through a driving wheel mounting frame and is connected to the rotating motor, and the controlled end of the rotating motor is connected to the output end of the PLC controller; the first driven wheel is vertically slidably installed on the front end of the support plate and is elastically connected to the support plate, the front and rear gear box plates of the support plate are vertically arranged, and the second driven wheel and the third driven wheel are respectively installed on the rear end of the support plate.

[0012] In the above-mentioned automatic polishing device for a long core rod, the safety protection module includes a safety door installed on the polishing box, a distance sensor is arranged inside the safety door, and the output end of the distance sensor is connected to the input end of the PLC controller.

[0013] In the above-mentioned automatic polishing device for a long core rod, the dust removal module includes a dust collector, a controlled end of the dust collector is connected to an output end of a PLC controller, and the dust collector is connected to a polishing box through a dust removal pipeline.

[0014] In the above-mentioned automatic polishing device for a long mandrel, the control panel of the control cabinet is provided with a polishing start key, a polishing back key, a polishing stop key, a mandrel speed adjustment key, a first digital display, a polishing speed adjustment key, and a second digital display.

[0015] In the above-mentioned automatic polishing device for a long mandrel, the two ends of the clamping and rotating module are respectively installed with a first limit switch and a second limit switch for detecting the position of the polishing module, and the output ends of the first limit switch and the second limit switch are connected to the input end of the PLC controller.

[0016] Due to the adoption of the above technical scheme, the technical progress achieved by the present invention is as follows.

[0017] The utility model provides an automatic polishing device for a long core rod. The efficiency of core rod polishing is improved by arranging a clamping and rotating module, a polishing module and a control module, and the automatic operation of polishing is realized. The dust removal module is arranged to absorb dust in the polishing process in time to avoid impact on the environment. The safety protection module is arranged to ensure that the polishing process is always carried out in a closed environment, which will not cause harm to the human body and improve the safety of operation. In addition, the tension of the sandpaper is adjusted in time during the polishing process to ensure that the force on each part of the core rod is uniform during polishing, thereby improving the polishing quality and the polishing speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the specific structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the specific structure of the polishing module of the utility model.

[0020] Among them: 1. Polishing box, 2. Clamping and rotating module, 3. Tail stock, 4. Polishing module, 5. Safety protection module, 6. Control module, 7. Dust removal module, 8. Mandrel, 9. First slide rail, 10. Second slide rail, 11. First limit switch, 12. Second limit switch, 13. Slide plate, 14. Left and right gear box plates, 15. Front and rear gear box plates, 16. Mounting plate, 17. Driving wheel mounting frame, 18. Driving wheel, 19. Second driving wheel, 20. Third driving wheel, 21. Fourth driving wheel, 22. Grinding sandpaper. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0022] An automatic polishing device for a long mandrel, such as Figure 1 to Figure 2 As shown, it includes a clamping and rotating module 2, a polishing module 3, a safety protection module 5, a control module 6, and a dust removal module 7, wherein the clamping and rotating module 2 and the polishing module 3 are installed on a base inside the polishing box 1, the safety protection module 5 is installed on one side of the polishing box, the control module 6 and the dust removal module 7 are arranged on one side of the polishing box 1, and the dust removal module 7 is connected to the polishing box through a dust removal pipeline.

[0023] The control module 6 includes a control cabinet, a PLC controller is arranged inside the control cabinet, and a polishing start key, a polishing back key, a polishing stop key, a core rod speed adjustment key, a first digital display, a polishing speed adjustment key, and a second digital display are arranged on the control panel of the control cabinet.

[0024] The clamping and rotating module 2 includes a clamping component and a rotating component. Figure 1As shown, the clamping assembly includes a three-jaw chuck and a tailstock 3 installed inside the polishing box. The tailstock 3 is slidably set on the first slide rail 9 on the right side of the three-jaw chuck. The three-jaw chuck is used to clamp the large end of the core rod 8. A pointed cone portion is provided on the left side of the tailstock 3 for inserting into the round hole of the small end of the core rod 8. The three-jaw chuck cooperates with the tailstock 3 to clamp the core rods 8 of different lengths.

[0025] The controlled end of the three-jaw chuck is connected to the output end of the PLC controller, and the controlled end of the rotating component is also connected to the output end of the PLC controller.

[0026] The rotating assembly is a conventionally arranged rotating drive mechanism, such as a motor drive, a gear drive, etc., which can drive the three-jaw chuck to clamp the core rod and rotate.

[0027] The polishing module 4 includes a polishing machine, a forward and backward moving component for driving the polishing machine to move forward and backward, and a left and right moving component for driving the polishing machine to move left and right.

[0028] like Figure 2 As shown, the left-right moving component includes a slide plate 13 slidably set on the second slide rail 10 in the polishing box 1, and the top surface of the slide plate 13 is provided with a first rack horizontally set along the left and right directions. The first rack is meshed with the first gear in the left and right gear box plates 14 at the top of the slide plate 13 for transmission, and the first gear is driven by the first motor inside the left and right gear box plates 14, and the controlled end of the first motor is connected to the output end of the PLC controller.

[0029] The forward and backward moving component includes a second rack arranged on the top of the left and right gear box plates 14, the second rack is horizontally arranged in the forward and backward direction, the second rack is meshed with the second gear in the front and rear gear box plates 15 above the left and right gear box plates 14, and a second motor that drives the second gear to rotate is installed inside the front and rear gear box plates 15, and the controlled end of the second motor is connected to the output end of the PLC controller.

[0030] The polishing machine includes a driving wheel 18, a first driven wheel 19, a second driven wheel 20, a third driven wheel 21, and a grinding sandpaper 22 which is sleeved on the outer sides of the driving wheel 18, the first driven wheel 19, the second driven wheel 20, and the third driven wheel 21 to form a quadrilateral.

[0031] The driving wheel 18 is installed on the top of the front and rear gear box plates 15 through the driving wheel mounting frame 17 and is connected to the rotating motor, and the controlled end of the rotating motor is connected to the output end of the PLC controller.

[0032] The first driven wheel 19 is vertically slidably mounted on the front end of the support plate 16 and elastically connected to the support plate 16 . The gear box plates 15 before and after the support plate 16 are vertically arranged and are respectively mounted on the rear end of the support plate 16 with the second driven wheel 20 and the third driven wheel 21 .

[0033] The first driven wheel 19 can move up and down in the vertical direction to control the tightness of the sandpaper according to the change of the core rod size, so as to ensure that the tension of the sandpaper is uniform everywhere.

[0034] A first limit switch 11 for detecting the position of the polishing machine is arranged on the tailstock 3, and an output end of the first limit switch 11 is connected to an input end of the PLC controller.

[0035] A second limit switch 12 for detecting the position of the polishing machine is also provided on the rear side of the three-jaw chuck, and the output end of the second limit switch 12 is connected to the input end of the PLC controller.

[0036] The cooperation of the first limit switch 11 and the second limit switch 12 can enable the polishing machine to move back and forth during the polishing process to complete the polishing of the core rod.

[0037] The safety protection module 5 includes a safety door installed on the polishing box. A distance sensor is arranged inside the safety door. The output end of the distance sensor is connected to the input end of the PLC controller.

[0038] When the safety door is opened, the distance sensor sends a signal to the PLC controller, and the PLC controller sends a signal to control the polishing module 4 to stop the action, ensuring that the polishing module is carried out in a closed environment to avoid dust overflow after polishing.

[0039] The dust removal module 7 includes a vacuum cleaner, a controlled end of the vacuum cleaner is connected to the output end of the PLC controller, and the vacuum cleaner is connected to the polishing box through a dust removal pipeline, so that the generated dust can be sucked out while polishing.

[0040] During polishing, first, move the tailstock 3 to a suitable position according to the length of the core rod 8, and insert the round hole at the small end of the core rod 8 into the pointed cone on the tailstock 3. Then, clamp the threaded part at the large end of the core rod 8 with a three-jaw chuck, and adjust the self-locking device in the tailstock to fix the tailstock.

[0041] Next, close the safety door, start the polishing machine, and drive the polishing machine to move toward the mandrel through the forward and backward moving assembly so that the sandpaper 22 contacts the surface of the large end of the mandrel, and then drive the polishing machine from the large end of the mandrel to the small end through the left and right moving assembly for grinding and polishing.

[0042] During the movement, when the size of the core rod changes, the pressure between the core rod and the sandpaper also changes. Since the first driven wheel 19 is elastically connected to the support plate 16, the first driven wheel 19 can move up and down for adjustment, thereby ensuring that the tension between the sandpaper can be kept uniform and ensuring uniform sanding force.

[0043] When the polishing machine moves to the small end of the mandrel, the first proximity switch 11 will send a signal to control the polishing machine to move in the opposite direction for polishing again, moving from the small end to the large end of the mandrel; when the polishing machine moves to the large end of the mandrel again, the second limit switch 12 will send a signal to control the polishing machine to move in the opposite direction again, moving from the large end to the small end of the mandrel, and repeat this process for multiple times. After polishing is completed, press the polishing stop button to stop the action.

[0044] During the polishing process, the dust removal module 7 will promptly absorb the dust generated during the polishing process to prevent dust from overflowing.

[0045] The utility model provides an automatic polishing device for a long core rod. The efficiency of core rod polishing is improved by arranging a clamping and rotating module, a polishing module and a control module, and the automatic operation of polishing is realized. The dust removal module is arranged to absorb dust in the polishing process in time to avoid impact on the environment. The safety protection module is arranged to ensure that the polishing process is always carried out in a closed environment, which will not cause harm to the human body and improve the safety of operation. In addition, the tension of the sandpaper is adjusted in time during the polishing process to ensure that the force on each part of the core rod is uniform during polishing, thereby improving the polishing quality and the polishing speed.

Claims

1. An automatic polishing device for a long mandrel, characterized in that: The invention comprises a clamping and rotating module (2), a polishing module (4), a safety protection module (5), a control module (6), and a dust removal module (7), wherein the clamping and rotating module (2) and the polishing module (4) are mounted on a base inside a polishing box (1), the safety protection module (5) is mounted on a side of the polishing box, and the control module (6) and the dust removal module (7) are arranged on one side of the polishing box (1); the clamping and rotating module (2) comprises a clamping assembly and a rotating assembly for driving the clamping assembly and the core rod to rotate; the polishing module (4) comprises a polishing machine and a forward and backward moving assembly for driving the polishing machine to move forward and backward and a left and right moving assembly for driving the polishing machine to move left and right; the control module (6) comprises a control cabinet, and a PLC controller is arranged inside the control cabinet.

2. The automatic polishing device for a long mandrel according to claim 1, characterized in that: The clamping assembly comprises a three-jaw chuck installed inside the polishing box and used to clamp the large end of the mandrel (8) and a tailstock (3) for clamping the small end of the mandrel. The tailstock (3) is slidably arranged on a first slide rail (9) on the right side of the three-jaw chuck. A pointed cone portion is arranged on the left side of the tailstock (3) and is inserted into a circular hole at the small end of the mandrel (8). The controlled end of the three-jaw chuck is connected to the output end of a PLC controller.

3. The automatic polishing device for a long mandrel according to claim 1, characterized in that: The left-right moving assembly comprises a slide plate (13) slidably arranged on a second slide rail (10) in the polishing box (1); a first rack arranged horizontally in the left-right direction is arranged on the top surface of the slide plate (13); the first rack is meshed with a first gear in the left and right gear box plates (14) at the top of the slide plate (13); the first gear is driven by a first motor inside the left and right gear box plates (14); and a controlled end of the first motor is connected to an output end of a PLC controller.

4. The automatic polishing device for a long mandrel according to claim 3, characterized in that: The forward and backward moving assembly comprises a second rack arranged on the top of the left and right gear box plates (14), the second rack being arranged horizontally in the forward and backward direction, the second rack being meshed and transmitted with a second gear in the front and rear gear box plates (15) above the left and right gear box plates (14), a second motor for driving the second gear to rotate being installed inside the front and rear gear box plates (15), and a controlled end of the second motor being connected to an output end of a PLC controller.

5. The automatic polishing device for a long mandrel according to claim 4, characterized in that: The polishing machine comprises a driving wheel (18), a first driven wheel (19), a second driven wheel (20), a third driven wheel (21), and a quadrilateral sandpaper (22) sleeved on the outer sides of the driving wheel (18), the first driven wheel (19), the second driven wheel (20), and the third driven wheel (21); the driving wheel (18) is mounted on the top ends of the front and rear gear box plates (15) through a driving wheel mounting frame (17) and is connected to a rotating motor, and the controlled end of the rotating motor is connected to the output end of a PLC controller; the first driven wheel (19) is vertically slidably mounted on the front end of a support plate (16) and is elastically connected to the support plate (16); the front and rear gear box plates (15) of the support plate (16) are vertically arranged, and the second driven wheel (20) and the third driven wheel (21) are respectively mounted on the rear ends of the support plate (16).

6. The automatic polishing device for a long mandrel according to claim 1, characterized in that: The safety protection module (5) comprises a safety door installed on the polishing box, a distance sensor is arranged inside the safety door, and an output end of the distance sensor is connected to an input end of the PLC controller.

7. The automatic polishing device for a long mandrel according to claim 1, characterized in that: The dust removal module (7) comprises a dust collector, a controlled end of the dust collector is connected to an output end of a PLC controller, and the dust collector is connected to a polishing box via a dust removal pipeline.

8. The automatic polishing device for a long mandrel according to claim 1, characterized in that: The control panel of the control cabinet is provided with a polishing start key, a polishing back key, a polishing stop key, a core rod speed adjustment key, a first digital display, a polishing speed adjustment key, and a second digital display.

9. The automatic polishing device for a long mandrel according to claim 1, characterized in that: A first limit switch (11) and a second limit switch (12) for detecting the position of the polishing module are respectively installed at both ends of the clamping and rotating module, and the output ends of the first limit switch (11) and the second limit switch (12) are connected to the input end of the PLC controller.

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