Automatic polishing device for stainless steel kettle

Abstract

The utility model relates to an automatic polishing device for a stainless steel kettle, which is characterized in that an abrasive belt polishing machine is provided with a pre-pressure cylinder, the pre-pressure cylinder is adjusted through a first pressure regulating valve, and a polishing shaft automatically moves relative to a guide sleeve through the pre-pressure cylinder, so that the kettle keeps set constant polishing cutting force during polishing; a driving wheel frame of the abrasive belt polishing machine is connected with a first guide shaft, a tensioning air cylinder provides power to drive the first guide shaft to move relative to a guide sleeve, and the tightness of an abrasive belt is adjusted. The hemp wheel polishing machine adjusts the transverse moving speed of the waxing sliding table through the second pressure regulating valve so as to control the smearing speed of the wax block on the hemp wheel; the wax block motor guides and controls the smearing depth of the wax block on the hemp wheel each time through the second guide shaft; the kettle is firstly polished on the abrasive belt polishing machine, then the kettle is placed on the overturning position of the finished product conveying line to be overturned up and down by 180 degrees to be ground and polished, and then fine grinding and polishing are conducted. The device has the advantages of reducing the labor intensity, being high in efficiency and improving the quality consistency.

Description

Technical Field

[0001] The utility model relates to an automatic polishing device for a stainless steel kettle. Background Art

[0002] In the current production of stainless steel kettles, surface polishing is a crucial surface treatment process. However, due to the complex curved surfaces of the kettles, manual labor is still required. The polishing process is harsh and harmful to the human body. The polishing wheel must be manually applied with polishing wax to improve polishing quality. The polishing force must be manually adjusted based on the wall thickness and size of the kettle to ensure that the surface is not damaged. This manual process has drawbacks such as low efficiency and poor consistency. Summary of the Invention

[0003] The purpose of this utility model is to solve the above problems and provide an automatic polishing device for stainless steel kettles, which reduces labor intensity, has high efficiency and improves quality consistency.

[0004] The purpose of the utility model is achieved in this way: an automatic polishing device for a stainless steel kettle is provided, which is provided with an abrasive belt polisher, a hemp wheel polisher, a six-axis robotic arm, a feed conveyor line, a finished product conveyor line and an electronic control device, and the electronic control device controls the movement of the abrasive belt polisher, the hemp wheel polisher and the six-axis robotic arm and the conveying of the kettle on the conveyor line;

[0005] The abrasive belt polisher is equipped with a pre-pressure cylinder, which is adjusted by a first pressure regulating valve. The pre-pressure cylinder automatically shifts the polishing shaft relative to the guide sleeve through the pre-pressure cylinder, so that the kettle maintains a set constant polishing cutting force during polishing. The driving wheel frame of the abrasive belt polisher is connected to the first guide shaft, and the tensioning cylinder provides power to drive the first guide shaft to shift relative to the guide sleeve to adjust the tightness of the abrasive belt.

[0006] The hemp wheel polishing machine adjusts the lateral speed of the waxing slide through the second pressure regulating valve to control the speed of the wax block rubbing on the hemp wheel; the wax block motor controls the depth of each wax block rubbing on the hemp wheel through the second guide shaft;

[0007] The kettle is transported to the first material taking position by the feeding conveyor line, and the first six-axis robotic arm picks up the kettle through the clamp and takes it to the sand belt polishing machine for polishing, polishing the kettle body area through the first sand belt and polishing the pot bottom area through the second sand belt; after sand belt polishing, the first six-axis robotic arm places the kettle on the flip position of the finished product conveyor line, flips it up and down 180°, and is transported forward by the finished product conveyor line to the second material taking position, and the second six-axis robotic arm picks up the kettle through the clamp and takes it to the first hemp wheel polishing machine for polishing, polishing the kettle body area through the first hemp wheel and polishing the pot bottom area through the second hemp wheel; after the first hemp wheel polishing, the second six-axis robotic arm places the kettle on the finished product conveyor line and takes it to the third material taking position, and the third six-axis robotic arm picks up the kettle through the clamp and takes it to the second hemp wheel polishing machine for fine polishing, polishing the kettle body area through the first hemp wheel and polishing the pot bottom area through the second hemp wheel; then, the third six-axis robotic arm places the kettle on the finished product conveyor line, and the finished product conveyor line is brought to the end.

[0008] The utility model provides a sand belt polisher and a hemp wheel polisher with a dust cover, a sealing wall is provided on the periphery of the polishing area, and dust is removed from the polishing area through a negative pressure dust removal device.

[0009] The utility model is provided with an induction switch at each material taking position and turning position on the feeding conveyor line and the finished product conveyor line. The induction switch sends a signal to the electric control device to control the movement of the abrasive belt polisher, the hemp wheel polisher and the six-axis mechanical arm.

[0010] The utility model discloses a hemp wheel polishing machine provided with a manual regulating wheel for replacing the wax block, and the distance between the wax block and the hemp wheel can be manually adjusted by the manual regulating wheel so as to ensure that the waxing is in place.

[0011] The utility model has the following positive effects: through the non-standard developed polishing machine, it can provide the required constant polishing thrust for different kettles, polish complex curved surfaces without damaging them, and make the connection of polished surfaces meet the mirror requirements; by using a large-load six-axis industrial robot, the movements during manual operation are simulated to complete the polishing operation of complex curved surfaces; through the automatic waxing module, the process of manual participation is reduced and the life of polishing consumables is managed in a unified manner; the kettles are fed and unloaded in the polishing area through the feeding conveyor line and the finished product conveyor line, the polishing area can be sealed, and the dust generated during polishing is collected by negative pressure suction and then collected by water-immersed collection equipment, which can effectively reduce the dust content in the air during polishing and purify the working environment.

[0012] The following embodiments are combined with the accompanying drawings to further illustrate the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the production line layout of an embodiment of the present utility model;

[0014] Figure 2 yes Figure 1 A schematic diagram of the three-dimensional arrangement of an embodiment;

[0015] Figure 3 yes Figure 1 A schematic diagram of the three-dimensional structure of the abrasive belt polisher of the embodiment;

[0016] Figure 4 yes Figure 1 A schematic diagram of the main structure of the belt polisher of the embodiment;

[0017] Figure 5 yes Figure 1 A schematic diagram of the three-dimensional structure of a hemp wheel polishing machine according to an embodiment;

[0018] Figure 6 yes Figure 1 A schematic diagram of the three-dimensional structure of the hemp wheel polishing machine according to the embodiment as viewed from another direction;

[0019] Figure 7 yes Figure 1 Schematic diagram of the three-dimensional structure of the kettle workpiece polished in the embodiment.

[0020] In the figure, A, belt polisher; A1, first hemp wheel polisher; A2, second hemp wheel polisher; B1, first six-axis robotic arm; B2, second six-axis robotic arm; B3, third six-axis robotic arm; Q1, first material picking position; Q2, second material picking position; Q3, third material picking position; F, flipping position; L1, feeding conveyor line; L2, finished product conveyor line; K, electronic control device; J, kettle; J1, kettle body area; J2, kettle bottom area; 1, pre-pressure cylinder; 2, guide sleeve; 3, first pressure regulating valve; 4, first guide shaft; 5, tensioning cylinder; 7, second pressure regulating valve; 8, waxing slide; 9, wax block motor; 10, second guide shaft; 11, dust cover; 12, sealing wall; 13, manual adjustment wheel; 14, polishing shaft; 16, first sanding belt; 17, second sanding belt; 18, first hemp wheel; 19, second hemp wheel. Implementation Method

[0021] Reference Figures 1 to 7This embodiment is an automatic polishing device for stainless steel kettles. Taking the polishing of the outer ring of a 3L kettle as an example, it is equipped with a belt polisher, two hemp wheel polishers, three six-axis robotic arms, a feed conveyor line L1, a finished product conveyor line L2, and an electronic control device K. The electronic control device controls the movement of the belt polisher, hemp wheel polisher, and six-axis robotic arms, as well as the conveying of kettles on the conveyor line; the belt polisher A is equipped with a pre-pressure cylinder 1, which is adjusted by a first pressure regulating valve 3. The pre-pressure cylinder makes the polishing shaft 14 relative to the guide The automatic shifting of the sleeve 2 enables the kettle to maintain the set constant polishing cutting force during polishing; the driving wheel frame of the abrasive belt polisher is connected to the first guide shaft 4, and the power provided by the tensioning cylinder 5 drives the first guide shaft to shift relative to the guide sleeve to adjust the tightness of the abrasive belt 6; the hemp wheel polisher adjusts the lateral speed of the waxing slide 8 through the second pressure regulating valve 7 to control the speed of the wax block rubbing on the hemp wheel; the wax block motor 9 controls the depth of each rubbing of the wax block on the hemp wheel 15 through the second guide shaft 10; the kettle J is fed by the feed conveyor line The kettle is sent to the first reclaiming position Q1, where it is picked up by the first six-axis robot arm B1 using a clamp and then polished on the belt polisher. The first abrasive belt 16 polishes the kettle body area J1, and the second abrasive belt 17 polishes the kettle bottom area J2. After belt polishing, the first six-axis robot arm places the kettle on the flip position F of the finished product conveyor line, flips it 180° up and down, and then transports it forward from the finished product conveyor line to the second reclaiming position Q2. The second six-axis robot arm B2 picks up the kettle using a clamp and polishes it on the first hemp wheel polisher A1. The kettle body area is polished by the first hemp wheel 18, and the bottom area is polished by the second hemp wheel 19; after the first hemp wheel polishing, the second six-axis robotic arm places the kettle on the finished product conveyor line, and comes to the third material picking position Q3, where the third six-axis robotic arm B3 picks up the kettle with a clamp and takes it to the second hemp wheel polishing machine A2 for fine polishing, passing through the first hemp wheel for fine polishing of the kettle body area, and passing through the second hemp wheel for fine polishing of the kettle bottom area; then, the third six-axis robotic arm places the kettle on the finished product conveyor line, and the finished product conveyor line brings it to the end.

[0022] In the present invention, the abrasive belt polisher and the hemp wheel polisher are provided with a dust cover 11, a sealing wall 12 is provided on the periphery of the polishing area, and dust is removed from the polishing area through a negative pressure dust removal device.

[0023] The utility model is provided with an induction switch at each material taking position and turning position on the feeding conveyor line and the finished product conveyor line. The induction switch sends a signal to the electric control device to control the movement of the abrasive belt polisher, the hemp wheel polisher and the six-axis mechanical arm.

[0024] The utility model discloses a hemp wheel polishing machine provided with a manual regulating wheel 13 for replacing the wax block. The distance between the wax block and the hemp wheel can be manually adjusted by the manual regulating wheel so as to ensure proper waxing.

[0025] Reference Figure 3 and Figure 4 、 Figure 5 and Figure 6 When the polishing machine is equipped with abrasive belts and hemp wheels for polishing, the two consumables have the same method of maintaining the constant cutting force required for polishing. Abrasive belts and hemp wheels are replaceable polishing consumables and can be selectively installed according to the specific polishing process. The difference is that abrasive belt polishing requires a tensioning device, while hemp wheel polishing requires an automatic waxing device.

[0026] Reference Figure 3 and Figure 4 The explosion-proof motor is installed on the frame, and the grinding belt wheel is installed at the end. The grinding belt wheel drives the polishing shaft at the end of the grinding belt drive to ensure that the grinding belt wheel rotates and reaches the required speed. The guide sleeve provides positioning for the polishing shaft to move back and forth, maintaining the set constant polishing cutting force during polishing.

[0027] Reference Figure 3 and Figure 4 The belt polishing machine adjusts the force of the pre-pressure cylinder through the first pressure regulating valve to achieve the required pressure for polishing the kettle; when working, the fixture installed on the six-axis robotic arm clamps the kettle, and then polishes it on the sanding belt. The six-axis robotic arm carries the kettle and applies pressure to the sanding belt wheel to polish the kettle; as the pressure of the robotic arm on the sanding belt wheel continues to increase, it exceeds the cutting force provided by the pre-pressure cylinder under the action of the first pressure regulating valve, and the sanding belt wheel retreats along the direction of the guide sleeve, always maintaining the pressure of the pre-pressure cylinder set by the first pressure regulating valve to ensure that the surface of the kettle is not over-cut or damaged.

[0028] Reference Figure 3 and Figure 4 The first guide shaft of the belt polishing machine can drive the active wheel frame to move back and forth, and the power is provided by the tensioning cylinder. When the tensioning cylinder extends outward, the center distance between the grinding belt wheel and the active wheel increases, so that the sanding belt reaches a tensioned state and polishing operation can be carried out; when the tensioning cylinder retracts, the center distance between the grinding wheel and the active wheel decreases, so that the sanding belt reaches a relaxed state and the sanding belt can be replaced.

[0029] Reference Figure 5 and Figure 6 The hemp wheel polisher uses a second pressure regulating valve to adjust the traverse speed of the waxing slide, controlling the speed at which the wax block, mounted on the wax block mounting bracket, is applied to the hemp wheel. A second guide shaft, driven back and forth by the wax block motor, acts as a guide, controlling the depth of each application of the wax block on the hemp wheel. A manual adjustment wheel is used to manually adjust the distance between the wax block and the hemp wheel each time the wax block is changed, ensuring proper wax application. The speed, depth, and frequency of waxing are programmably adjusted for each polishing kettle, ensuring efficient use of wax blocks and conserving consumables.

[0030] According to the utility model, a kettle that needs to be polished is manually placed on the feeding conveyor line, and the feeding conveyor line conveys the kettle to the first material taking position; then the first six-axis robotic arm picks up the kettle through a clamp and polishes it on a sand belt polisher; after completing the work, the kettle is placed on the flipping position on the finished product conveyor line, flipped 180 degrees up and down, and continued to be conveyed forward by the finished product conveyor line; then the kettle comes to the second material taking position, and the second six-axis robotic arm picks up the kettle through a clamp and polishes it on the first hemp wheel polishing machine; after completing the work, the kettle is placed on the finished product conveyor line, and then the kettle comes to the third material taking position, and the third six-axis robotic arm picks up the kettle through a clamp and polishes it on the second hemp wheel polishing machine; after completing the work, the kettle is placed on the finished product conveyor line, conveyed to the end, and manually taken out to complete the entire work process.

[0031] In the present utility model, during the polishing process, only the parameters of the product need to be manually set on the electronic control device, and the semi-finished products need to be placed on the feed conveyor line and the products need to be recovered from the finished product conveyor line. The production line then automatically completes the polishing of the complex curved surface, saving a lot of manpower and reducing the technical requirements for manual polishing. The polishing area is surrounded by a sealed wall, and negative pressure dust removal can be used in the entire sealed polishing area to ensure a clean environment. The constant cutting force mechanism ensures that the polishing surface is not burned during polishing, ensuring the polishing quality. The automatic waxing mechanism ensures that the entire polishing process can be completed without manual intervention during the hemp wheel polishing process, saving equipment downtime and waiting time.

[0032] In the present invention, different robot arm motion programs corresponding to different products can be stored inside the electric control box. Products with different wall thicknesses and external dimensions consume consumables such as wax blocks and hemp wheels at different rates. The life of consumables is tracked in the system. When different polishing products reach the set life, the system automatically reminds the operator to replace them.

[0033] In the present invention, the polishing machines required by different process flows can be combined at will, that is, the order of the sanding belt or hemp wheel processes can be freely called in the program.

[0034] By using the polishing production line of the present invention, the polishing operation of a 3L kettle, which originally required the cooperation of four workers, can now be completed by only one worker for program selection and loading and unloading.

Claims

1. An automatic polishing device for a stainless steel kettle, characterized by: A sanding belt polisher, a hemp wheel polisher, a six-axis robotic arm, a feed conveyor line (L1), a finished product conveyor line (L2), and an electronic control device (K) are provided. The electronic control device controls the movement of the sanding belt polisher, the hemp wheel polisher, the six-axis robotic arm, and the water bottle conveying of the conveyor line. The abrasive belt polishing machine (A) is provided with a pre-pressure cylinder (1), which is adjusted by a first pressure regulating valve (3) and automatically shifts the polishing shaft (14) relative to the guide sleeve (2) through the pre-pressure cylinder, so that the kettle maintains a set constant polishing cutting force during polishing; the driving wheel frame of the abrasive belt polishing machine is connected to the first guide shaft (4), and the tensioning cylinder (5) provides power to drive the first guide shaft to shift relative to the guide sleeve, thereby adjusting the tightness of the abrasive belt; The hemp wheel polishing machine automatically controls the speed of the wax block rubbing on the hemp wheel by adjusting the lateral movement speed of the waxing slide (8) through the second pressure regulating valve (7); the wax block motor (9) controls the depth of each rubbing of the wax block on the hemp wheel through the second guide shaft (10); The kettle (J) is transported from the feeding conveyor line to the first material taking position (Q1), and the first six-axis robot arm (B1) picks up the kettle through the clamp and takes it to the sand belt polisher for polishing. The first sand belt (16) polishes the kettle body area (J1), and the second sand belt (17) polishes the kettle bottom area (J2). After the sand belt polishing, the first six-axis robot arm places the kettle on the flip position (F) of the finished product conveyor line, flips it up and down 180 degrees, and then transports it forward from the finished product conveyor line to the second material taking position (Q2). The second six-axis robot arm (B2) picks up the kettle through the clamp and takes it to the first hemp wheel polisher. Polishing is performed on the optical machine (A1), the body area of ​​the kettle is polished by the first hemp wheel (18), and the bottom area of ​​the kettle is polished by the second hemp wheel (19); after the first hemp wheel polishing, the second six-axis robot arm places the kettle on the finished product conveyor line, and comes to the third material picking position (Q3), and the third six-axis robot arm (B3) picks up the kettle through the clamp and takes it to the second hemp wheel polishing machine (A2) for fine polishing, and the body area of ​​the kettle is polished by the first hemp wheel, and the bottom area of ​​the kettle is polished by the second hemp wheel; then, the third six-axis robot arm places the kettle on the finished product conveyor line, and the finished product conveyor line brings it to the end.

2. The automatic polishing device for a stainless steel kettle according to claim 1, characterized in that: The abrasive belt polisher and the hemp wheel polisher are provided with a dust cover (11), and a sealing wall (12) is provided on the periphery of the polishing area. The polishing area is dusted by a negative pressure dust removal device.

3. The automatic polishing device for a stainless steel kettle according to claim 1, characterized in that: Induction switches are installed at each material removal position and turning position on the feeding conveyor line and the finished product conveyor line. The induction switches send signals to the electric control device to control the movement of the belt polisher, hemp wheel polisher and six-axis robotic arm.

4. The automatic polishing device for a stainless steel kettle according to claim 1, characterized in that: The hemp wheel polishing machine is provided with a manual adjustment wheel (13) for replacing the wax block, and the distance between the wax block and the hemp wheel is manually adjusted by the manual adjustment wheel to ensure that the wax is applied in place.

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