Polishing device and method for transparent part of hatch cover

Abstract

The invention discloses a polishing device for a transparent part of a hatch cover, which belongs to the technical field of polishing and comprises a portal frame, a manipulator mounted on the portal frame, a top polishing wheel mounted on the manipulator and an auxiliary polishing assembly positioned below the top polishing wheel. By means of the design of the device, it can be guaranteed that the workpiece is comprehensively polished, and meanwhile the workpiece is prevented from being damaged when the auxiliary unit clamps the workpiece.

Description

Technical Field

[0001] The invention belongs to the technical field of polishing, and in particular relates to a polishing device and a method for a hatch cover transparent part. Background Art

[0002] Polishing is a process for surface treatment of materials. It is usually used in the processing of materials such as metal, wood, glass and plastic. It can improve the surface flatness and glossiness of the workpiece, thereby enhancing the appearance and functionality of the product.

[0003] With the rapid development of industrial automation and intelligent manufacturing, the demand for polishing robots is growing rapidly, and the application areas are expanding from traditional automobile and shipbuilding to home furnishing, electronics, aerospace and other fields. Intelligence and automation are the future development trends of polishing technology, which can improve production efficiency and processing quality while reducing costs.

[0004] With the development of industrial automation technology, more and more companies are using robots for automated construction, but there are still problems in practical applications: since clamping tools are generally required to clamp the workpiece during polishing, the clamping point cannot be polished, which affects the overall aesthetics and functionality of the workpiece. Summary of the invention

[0005] In view of the above problems in the prior art, an object of the present invention is to provide a polishing device and method for a hatch cover transparent part.

[0006] The present invention provides the following technical solutions:

[0007] A polishing device for a hatch cover transparent part comprises a gantry, a manipulator mounted on the gantry, a top polishing wheel mounted on the manipulator, an auxiliary polishing assembly located below the top polishing wheel, the auxiliary polishing assembly comprising a base, a gear mounted on the base through a bearing, a connecting seat mounted on the gear, a cavity 1 being arranged in the connecting seat, a cylinder placed in the cavity 1, a mounting seat mounted on the cylinder, a limit seat mounted on the mounting seat, a cavity 2 arranged in the limit seat, and through holes being evenly distributed around the axis of the limit seat in the limit seat, a conical block being mounted on the piston rod of the cylinder, and the conical block being placed in the cavity 2, a telescopic rod being placed in the through hole, and the telescopic rod being in contact with the inclined surface of the conical block, n auxiliary units being evenly distributed around the axis of the limit seat, the auxiliary units being hinged on the limit seat, the limit seat being mounted on the connecting seat, and the movement of the auxiliary units being controlled by the telescopic rod, a conical step being arranged on the top of the limit seat, a workpiece being placed on the conical step, a positioning seat being mounted on the base, and a transmission gear being movably mounted on the positioning seat through a motor;

[0008] Two magnetic switches are installed on the cylinder, which divide the entire stroke of the cylinder into two stages. The first stage is the polishing of the workpiece surface, and the second stage is the polishing of the workpiece bottom.

[0009] Specifically, the auxiliary unit includes an articulated block hinged on a limit seat, the bottom of the articulated block contacts the telescopic rod, a mounting block is mounted on the top of the articulated block, the polishing wheel is movably mounted on the mounting block through a spring, and the polishing wheel rests against the workpiece.

[0010] Specifically, (η 1 ×(η×F s1 -m 2 ×g)×tanθ×L 1 +k×x×n×L 2 ) / L 3 <F 工

[0011] where η 1 is the conduction efficiency of the cone block and the telescopic rod, F s1 is the theoretical thrust when the cylinder is fully traveled, η is the load factor of the cylinder, m 2 is the weight of the conical block, g is the acceleration of gravity, θ is the taper of the conical block, L 1 is the distance between the hinge center of the auxiliary unit and the telescopic rod, k is the spring constant, x is the spring bending amount, n is the number of auxiliary units, L 2 L is the distance between the auxiliary unit hinge center and the polishing wheel. 3 F is the distance between the auxiliary unit hinge center and the spring reaction force, 工 It is the maximum load that the workpiece can theoretically withstand.

[0012] Specifically, it also includes the fence surrounding the gantry.

[0013] Based on the above device, the present invention also proposes a method for using the above-mentioned polishing device for a hatch cover transparent part, comprising the following steps:

[0014] S1, select the appropriate number of auxiliary units n by calculation;

[0015] S2, the first stage of opening the cylinder to clamp the workpiece;

[0016] S3, start the manipulator to cooperate with the top polishing wheel to polish the surface of the workpiece;

[0017] S4, the second stage of starting the cylinder, while the manipulator cooperates with the top polishing wheel to press against the workpiece;

[0018] S5, turning on the motor, the motor drives the auxiliary unit to rotate around the workpiece, thereby polishing the bottom of the workpiece.

[0019] The beneficial effects of the present invention are:

[0020] 1. The design of this device can ensure the comprehensive polishing of the workpiece, while avoiding damage to the workpiece when the auxiliary unit clamps the workpiece;

[0021] 2. Due to the design of the spring, the device can not only polish workpieces with circular cross-sections, but also polish workpieces with elliptical cross-sections. The spring ensures that the polishing wheel is always in contact with the surface of the workpiece, making the device widely applicable. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 is a schematic diagram of the position of the top polishing wheel in the present invention;

[0024] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0025] Figure 3 It is a schematic diagram of the internal structure of the first stage of the cylinder in the present invention;

[0026] Figure 4 It is a schematic diagram of the positions of the gears and the transmission gears in the present invention;

[0027] The following are marked in the figure: 1. Gantry; 2. Fence; 3. Manipulator; 4. Top polishing wheel; 5. Auxiliary polishing assembly;

[0028] 501, base; 502, connecting seat; 503, gear; 504, cavity one; 505, cylinder; 506, mounting seat; 507, limit seat; 508, cavity two; 509, tapered block; 510, auxiliary unit; 511, through hole; 512, telescopic rod; 513, tapered step; 514, transmission gear; 515, positioning seat; 516, motor; 5101, mounting block; 5102, hinge block; 5103, spring; 5104, polishing wheel. DETAILED DESCRIPTION

[0029] like Figure 1 As shown, the present invention provides a polishing device for a transparent part of a hatch cover, comprising a gantry 1, a manipulator 3 installed on the gantry 1, a top polishing wheel 4 installed on the manipulator 3, an auxiliary polishing assembly 5 located below the top polishing wheel 4, and a fence 2 surrounding the gantry 1.

[0030] Please focus on Figure 2 and Figure 3The auxiliary polishing assembly 5 includes a base 501, a gear 503 mounted on the base 501 through a bearing, a connecting seat 502 mounted on the gear 503, a cavity 1 504 is provided in the connecting seat 502, a cylinder 505 is placed in the cavity 1 504, a mounting seat 506 mounted on the cylinder 505, a limit seat 507 mounted on the mounting seat 506, a cavity 2 508 provided in the limit seat 507, and through holes 511 are evenly distributed around the axis of the limit seat 507 in the limit seat 507, and a conical block 509 is mounted on The piston rod of the cylinder 505 is provided with a conical block 509 in the second cavity 508, a telescopic rod 512 is provided in the through hole 511, and the telescopic rod 512 contacts the inclined surface of the conical block 509, n auxiliary units 510 are evenly distributed around the axis of the limit seat 507, the auxiliary unit 510 is hinged on the limit seat 507, the limit seat 507 is installed on the connecting seat 502, and the auxiliary unit 510 is controlled to move by the telescopic rod 512, a conical step 513 is provided on the top of the limit seat 507, and the workpiece is placed on the conical step 513. Please refer to Figure 4 The positioning seat 515 is installed on the base 501, and the transmission gear 514 is movably installed on the positioning seat 515 through the motor 516.

[0031] Two magnetic switches are installed on the cylinder 505, dividing the entire stroke of the cylinder 505 into two stages. Different stages of the cylinder 505 correspond to different stages of the process flow. The first stage is the polishing of the workpiece surface, and the second stage is the polishing of the workpiece bottom.

[0032] Please focus on Figure 2 and Figure 3 The auxiliary unit 510 includes an articulated block 5102 hinged on the limit seat 507, the bottom of the articulated block 5102 is in contact with the telescopic rod 512, a mounting block 5101 is installed on the top of the articulated block 5102, and the polishing wheel 5104 is movably installed on the mounting block 5101 through a spring 5103, and the polishing wheel 5104 is against the workpiece.

[0033] When the workpiece is placed on the limit seat 507, the cylinder 505 is turned on and the cylinder 505 is in the first stage. In the first stage, the cylinder 505 is in a full stroke state, the cylinder 505 drives the conical block 509 to move upward, and the telescopic rod 512 moves along the inclined surface of the conical block 509. The cylinder 505 pushes the telescopic rod 512 to extend and retract, thereby ensuring that the polishing wheel 5104 is against the workpiece, and the manipulator 3 controls the top polishing wheel 4 to polish the workpiece; after the top polishing wheel 4 completes the operation, the top polishing wheel 4 cooperates with the manipulator 3 to resist the workpiece, and the cylinder 505 is turned on and the cylinder 505 is in the second stage. In the second stage, the cylinder 505 is in a half-stroke position. At this time, the cylinder 505 releases the workpiece and the motor 516 is turned on at the same time. The motor 516 drives the transmission gear 514 to rotate, thereby driving the connecting seat 502 to rotate, and then driving the polishing wheel 5104 to rotate around the workpiece to polish the bottom of the workpiece.

[0034] To avoid damage to the workpiece, the clamping force F applied to the workpiece when the cylinder 505 is in full stroke is 夹 It needs to be smaller than the maximum bearing force F that the workpiece can theoretically withstand. 工 .

[0035] F 夹 =(F p3 ×L 1 +Fs×L 2 ) / L 3

[0036] Among them, F p3 is the pushing force of the conical block 509 on the telescopic rod 512, F p3 =η 1 ×F b ×tanθ,η 1 is the conduction efficiency of the conical block 509 and the telescopic rod 512 (considering the loss caused by friction), which is 0.6, F b is the pushing force of the cylinder 505 on the conical block 509, F b =η×F s1 -m 2 ×g,F s1 is the theoretical thrust of cylinder 505 when it is fully traveled, η is the load factor of cylinder 505, m 2 is the weight of the conical block 509, g is the acceleration of gravity, θ is the taper of the conical block 509; L 1 is the distance between the hinge center of the auxiliary unit 510 and the telescopic rod 512; Fs is the reaction force of the spring 5103, Fs = k × x × n, k is the spring constant, x is the spring deflection, and n is the number of auxiliary units 510; L 2 L is the distance between the hinge center of the auxiliary unit 510 and the polishing wheel 5104; 3is the distance between the hinge center of the auxiliary unit 510 and the reaction force of the spring 5103.

[0037] Through calculation, the appropriate number n of auxiliary units 510 is selected.

[0038] The robot arm 3, the top polishing wheel 4, the cylinder 505, the magnetic switch and the motor 516 are communicatively coupled to the control panel.

[0039] The control panel contains a PLC controller, which can program the numerical control system. The PLC is used as the central control system, and the touch screen is used to realize the program input and operation control of the whole machine, so as to realize the full automation of the transportation process. The control system can be used as a system that connects various actuators to move according to the logical trajectory, and the actuators can be controlled by programming to run according to the required operation steps.

[0040] Based on the above device, the first embodiment of the present invention further proposes a method for using the above-mentioned polishing device for a hatch cover transparent part, comprising the following steps:

[0041] Step 1, selecting the appropriate number n of auxiliary units 510 by calculation;

[0042] Step 2, the first stage of opening the cylinder 505 to clamp the workpiece;

[0043] Step 3, start the manipulator 3 to cooperate with the top polishing wheel 4 to polish the surface of the workpiece;

[0044] Step 4, start the second stage of the cylinder 505, and at the same time, the manipulator 3 cooperates with the top polishing wheel 4 to press against the workpiece;

[0045] Step five: turn on the motor 516, and the motor 516 drives the auxiliary unit 510 to rotate around the workpiece, thereby performing bottom polishing on the workpiece.

[0046] The design of the device can ensure the overall polishing of the workpiece, while preventing the auxiliary unit 510 from causing damage to the workpiece when clamping the workpiece.

[0047] And due to the design of spring 5103, the device can not only polish workpieces with circular cross-sections, but also polish workpieces with elliptical cross-sections. Spring 5103 ensures that the polishing wheel 5104 is always in contact with the surface of the workpiece, thereby making the device widely applicable.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A polishing device for a hatch cover transparent part, comprising a gantry, a manipulator mounted on the gantry, a top polishing wheel mounted on the manipulator, and an auxiliary polishing assembly located below the top polishing wheel. It is characterized in that The auxiliary polishing component includes a base, a gear movably mounted on the base through a bearing, a connecting seat mounted on the gear, a cavity 1 is arranged in the connecting seat, a cylinder is placed in the cavity 1, a mounting seat mounted on the cylinder, a limit seat mounted on the mounting seat, and a cavity 2 is arranged in the limit seat, and at the same time, through holes are evenly distributed around the axis of the limit seat in the limit seat, a conical block is mounted on the piston rod of the cylinder, and the conical block is placed in the cavity 2, a telescopic rod is placed in the through hole, and the telescopic rod is in contact with the inclined surface of the conical block, n auxiliary units are evenly distributed around the axis of the limit seat, the auxiliary units are hinged on the limit seat, the limit seat is mounted on the connecting seat, and the auxiliary units are controlled to move by the telescopic rod, a conical step is arranged on the top of the limit seat, a workpiece is placed on the conical step, a positioning seat is mounted on the base, and a transmission gear is movably mounted on the positioning seat through a motor; Two magnetic switches are installed on the cylinder, which divide the entire stroke of the cylinder into two stages. The first stage is the polishing of the workpiece surface, and the second stage is the polishing of the workpiece bottom.

2. A polishing device for a hatch cover transparent part according to claim 1, characterized in that: The auxiliary unit comprises an articulated block articulated on a limit seat, the bottom of the articulated block contacts the telescopic rod, a mounting block is mounted on the top of the articulated block, a polishing wheel is movably mounted on the mounting block through a spring, and the polishing wheel rests against the workpiece.

3. A polishing device for a hatch cover transparent part according to claim 2, characterized in that: <h2 style=";text-align:left;direction:ltr">(η1×(η×F<h2 style=";text-align:left;direction:ltr"> s1 <h2 style=";text-align:left;direction:ltr"> (m2×g)×tanθ×L1 + k×x×n×L2) / L3 <F <h2 style=";text-align:left;direction:ltr"> 工 Where η1 is the conduction efficiency of the cone block and the telescopic rod, F s1 is the theoretical thrust of the cylinder at full stroke, η is the load factor of the cylinder, m2 is the weight of the cone block, g is the acceleration of gravity, θ is the taper of the cone block, L1 is the distance between the hinge center of the auxiliary unit and the telescopic rod, k is the spring constant, x is the spring deflection, n is the number of auxiliary units, L2 is the distance between the hinge center of the auxiliary unit and the polishing wheel, L3 is the distance between the hinge center of the auxiliary unit and the spring reaction force, and F 工 It is the maximum load that the workpiece can theoretically withstand.

4. A polishing device for a hatch cover transparent part according to any one of claims 1 to 3, characterized in that: It also includes the fence surrounding the gantry.

5. A method of using the hatch cover transparent part polishing device according to claim 3, characterized in that: The following steps are involved: S1, select the appropriate number of auxiliary units n by calculation; S2, the first stage of opening the cylinder to clamp the workpiece; S3, start the manipulator to cooperate with the top polishing wheel to polish the surface of the workpiece; S4, the second stage of starting the cylinder, while the manipulator cooperates with the top polishing wheel to press against the workpiece; S5, turning on the motor, the motor drives the auxiliary unit to rotate around the workpiece, thereby polishing the bottom of the workpiece.

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