CN114102431B - Automatic positioner of metal pot polishing - Google Patents

Abstract

The invention relates to an automatic metal pot polishing positioner, which is suitable for the field of machining. In order to solve the problem that the traditional metal pot is low in efficiency by manual grinding, the metal pot grinding machine comprises an upper part and a lower part, wherein the axes of the fixed parts of the upper part and the lower part are superposed; after the upper part or the lower part fixes the bottom surface of the metal pot, the upper part or the lower part moves along the axis, so that the metal pot is transferred to the lower part or the upper part, and the lower part or the upper part fixes the other bottom surface of the metal pot; the metal pot is adjusted to be concentric through the upper disc and the lower disc, the metal pot is fixed through the vacuum pump, and the motor is arranged to enable the metal pot to rotate around the axis of the metal pot. Can effectively fix the metal pot so that polish, can realize that the metal pot shifts in order to adapt to polishing on two inside and outside surfaces, can accurate adjustment metal pot position avoid off-centre, the efficiency of polishing promotes greatly, and disc decentraction about can in time discovering can carry out initial phase location to the metal pot and polish with the pertinence that adapts to polishing robot to the pot ear of metal pot.

Description

An automatic positioner for grinding metal pots

technical field

The invention relates to the field of mechanical processing, in particular to an automatic positioner for grinding metal pots.

Background technique

Metal pans, especially aluminum pans, require grinding of the inner and outer surfaces during the production process. The traditional grinding method is manual grinding with a hand-held grinding head. With the increasing cost of labor, the economic advantages of this method are no longer obvious, and the disadvantages in efficiency are fully exposed in the competition with automated production lines.

The unique shape of the metal pot determines that it is difficult to complete the polishing process at one time, and at least it needs to be polished in two processes, the inner surface and the outer surface. The pot is cylindrical or frustum-shaped as a whole, and the axis is on the bottom of the pot, including the inner and outer bottoms. Therefore, in order to facilitate grinding, the optimal solution is to fix the inner bottom when rotating and grinding the outer surface, and then rotate and polish the inner surface. while holding the outer bottom surface in place. The problems to be solved during the period are how to firmly fix the inner and outer bottom surfaces, how to change the position of the metal pot so as to change from fixing one bottom surface to fixing the other bottom surface, and how to ensure the axis of the fixing device and the axis of the pot when fixing the inner and outer bottom surfaces coincidence, and, for the consideration of improving efficiency, etc., ensure that the axes of the upper and lower fixing devices coincide.

Contents of the invention

The purpose of the present invention is to realize the fixation of the inner and outer bottom surfaces and the displacement from the fixing of one bottom surface to the fixing of the other bottom surface during the grinding process of the metal pan, so as to ensure that the axis of the fixing device coincides with the axis of the metal pan.

Concrete technical scheme of the present invention is as follows:

An automatic positioner for metal pan grinding, comprising an upper part and a lower part, the axes of the fixed parts of the upper part and the lower part coincide; after the upper part or the lower part fixes the bottom surface of the metal pot, the upper part or the lower part The lower part moves along the axis, thereby transferring the metal pot to the lower part or the upper part, and the lower part or the upper part fixes the other bottom surface of the metal pot.

Note: The axes of the fixed parts of the upper part and the lower part are coincident to ensure that the metal pan will not be shifted when it is transferred from one fixed part to another.

The lower part includes a lower disc, a lower vacuum tube and a lift cylinder, the upper port of the lower vacuum tube passes through the lower disc, the lower port is connected to a vacuum pump, the bottom end of the lift cylinder is located on the base, and the lift cylinder The upper end controls the lifting of the lower disc and the lower vacuum tube; the upper part includes an upper disc, an upper vacuum tube and a fixed bracket, one end of the upper vacuum tube passes through the upper disc, and the other end is connected to a vacuum pump. The support includes a horizontal fixing bracket and a vertical fixing bracket, the upper surface of the upper disc is connected with the horizontal fixing bracket, the horizontal fixing bracket is connected with the upper part of the vertical fixing bracket, and the vertical fixing bracket The lower end is connected to the base.

Note: The preferred solution is that the metal pot is fixed and polished through the lower part first, and then the metal pot is transferred to the upper part through the lifting cylinder to polish another surface; the fixing method is selected as vacuuming, and the metal pot is fixed on the upper and lower discs by atmospheric pressure. The pressure is sufficient to ensure that the metal pot will not shift or fall off during the high-speed grinding process, and at the same time avoid the deformation and damage caused by the rigid fixation of the mechanical structure to the surface of the metal pot.

The upper disk and the horizontal fixed bracket rotate around the connecting shaft between the horizontal fixed bracket and the vertical fixed bracket; there is an auxiliary bracket in the middle of the vertical fixed bracket, and the lower vacuum tube passes through through the auxiliary bracket.

Note: the upper disk and the horizontal fixed bracket rotate 180 degrees around the connecting shaft between the horizontal fixed bracket and the vertical fixed bracket to help the grinding robot grind the metal pot from top to bottom. The metal pot is fixed on the upper disk under the joint action of gravity and atmospheric pressure, which is more firm; the upper disk and the horizontal fixing bracket surround the gap between the horizontal fixing bracket and the vertical fixing bracket. Rotating the connecting shaft by 90 degrees is beneficial for the grinding robot to polish the pot ears (two grippers on the upper edge of the pot) and some corners; the auxiliary bracket reinforces the lower part.

The upper disk and/or the lower disk rotate around the axis.

Note: The purpose is to improve the grinding efficiency. In this way, even if the grinding robot does not move, only the upper and lower discs drive the metal pot body to rotate, and the grinding speed can be accelerated. When rotating, it is required that the metal pot should not be eccentric, otherwise it will be easily thrown out, so the frustum-shaped design of the lower disc and the scaling unit of the upper disc should be adjusted to be concentric.

There is a rubber ring on the edge of the surface of the upper disc and/or the lower disc that is in contact with the bottom of the metal pan.

Note: The rubber ring enhances the sealing, which in turn allows the vacuum pump to achieve a higher vacuum between the disc surface and the bottom of the pot, making the metal pot more firmly adsorbed on the disc.

The lower disc is in the shape of a truncated cone with a small top and a big bottom.

Note: The preferred solution is to put the metal pot upside down on the conveyor belt, and then move it to the lower disc under the action of a horizontal force, and the inverted metal pot falls under the action of gravity until the inner bottom surface of the metal pot touches the lower disc The lower disc is in the shape of a circular platform with a small top and a large bottom, which is helpful for accurate positioning and will not make the metal pot deviate from the axis. It is more helpful for precise positioning.

There is a laser emitter on the upper surface of the auxiliary bracket, and a laser detector on the lower surface of the horizontal fixed bracket. The laser detector is installed on the top of a channel, and the upper disc on the horizontal fixed bracket and its lower When the laser is horizontal and the laser is not blocked, the laser emitted by the laser emitter can pass through the channel and be detected by the laser detector; the side of the channel is communicated with an air channel, and the gas enters the In the channel, the foreign matter in the channel is discharged.

Note: The laser emitter and the laser detector cooperate with each other, and the first function is to ensure that the axes of the upper and lower discs coincide, and the diameter of the channel is required to be small. A slight deviation between the axis and the vertical line will cause the laser detector to fail to detect the laser. , and then you can use a level for further calibration. The specific diameter depends on the requirements for accuracy; Function 2: Assist in adjusting the initial phase of the metal pot, because there are two protruding pot ears on the upper edge of the metal pot. The outer surface of a part of the circumference of the aluminum pot cannot be polished for a complete circle by the rotation of the metal pot itself like other parts, but it is necessary to design a robot grinding program for separate grinding, which requires the determination of the initial position of the metal pot ear. Laser Passing through the circle where the ears of the pot are located, the metal pot slowly rotates around the axis. When the laser detector senses the change of the laser light from nothing to presence or from presence to absence, the position of the metal pan can be confirmed. Long-term use, the channel may be blocked by foreign matter such as dust, the air channel can be regularly sprayed into it to clean the channel, so as to avoid affecting the laser detector to feel the laser.

The upper disk includes a fixed disk, a zoom disk and a suction disk, the zoom disk is between the fixed disk and the suction disk, the fixed disk, the zoom disk and the suction disk are concentric, the The edge of the fixed plate is fixedly connected with the edge of the suction plate; the fixed plate is fixed with a zoom cylinder, the fixed end of the zoom cylinder is fixed on the fixed plate, and the movable end of the zoom cylinder is fixed on the On the zoom disk; there is a radial through hole on the suction disk, and there is an oblique through hole on the zoom disk, and the position of the radial through hole corresponds to the position of the oblique through hole; there is an axial connection A shaft passes through the radial through hole and the oblique through hole, and the axial connection shaft moves in the radial through hole along the radial direction, and also moves in the oblique through hole; the shaft There is a protrusion at one end of the connecting shaft passing through the zoom disk; there is a fixed shaft on the fixed disk, and the fixed shaft and the axial connecting shaft are movably connected by a connecting piece; one of the axial connecting shafts , one of the fixed shafts, one of the connecting pieces, one of the radial through holes and one of the oblique through holes constitute a set of scaling units.

Note: When the upper disc is fixing the metal pot, the metal pot is hung upside down on the upper disc, and the atmospheric pressure is opposite to the gravity of the pot, so auxiliary reinforcement is needed, and the scaling unit can shrink inwards to play this role. In addition, the zoom unit can also correct the eccentricity, and several protrusions shrink inward at the same distance at the same time, correcting the original eccentric pot body to the axis as the center.

There are at least three sets of scaling units.

Note: At least three points shrink at the same time to be able to clamp the pot body.

Beneficial effects: the metal pot can be effectively fixed for grinding, the displacement of the metal pot can be realized to adapt to the grinding of the inner and outer surfaces, the position of the metal pot can be precisely adjusted to avoid eccentricity, the grinding efficiency is greatly improved, and the upper and lower discs can be found out in time. The initial phase positioning of the metal pot can be carried out for the ear of the metal pot to adapt to the targeted grinding of the grinding robot.

Description of drawings

Fig. 1 is a perspective view of an automatic positioner for grinding metal pans.

Fig. 2 is a left view of an automatic positioner for grinding metal pans.

Fig. 3 is a perspective view of the upper part of an automatic positioner for grinding metal pans.

Fig. 4 is a bottom view of the upper part of a metal pan grinding automatic positioner.

Fig. 5 is a schematic diagram of the direction of the adsorption disc of the upper disc.

Fig. 6 is a bottom view of the upper disk with the fixed disk removed.

Fig. 7 is a perspective view of the upper disk with the fixed disk removed.

Fig. 8 is a bottom view of the upper disk with the fixed disk and zoom disk removed.

Fig. 9 is a perspective view of the upper disk with the fixed disk and zoom disk removed.

Fig. 10 is a perspective view of the remaining part after the lifting cylinder is removed from the lower part.

Fig. 11 is a bottom view of the remaining part after removing the lifting cylinder in the lower part.

Fig. 12 is a right side view of the remaining part after removing the lifting cylinder in the lower part.

Upper disc 21, radial through hole 211, protrusion 212, rubber ring 213, oblique through hole 214, scaling cylinder 215, fixed shaft 216, connector 217, horizontal fixing bracket 22, laser detector 221, vertical fixing Support 23, auxiliary support 231, laser emitter 2311, lower disc 31, lifting cylinder 32, lower motor 33, lifting cylinder connecting portion 34, lower vacuum tube 35.

Detailed ways

Embodiment one:

As shown in Figures 1 and 2, an automatic positioner for grinding metal pans includes an upper part (as shown in Figures 3 and 4) and a lower part (as shown in Figures 10, 11 and 12), and the axes of the fixed parts of the upper part and the lower part Coincident; after the upper part or the lower part fixes the bottom surface of the metal pot, the upper part or the lower part moves along the axis, thereby transferring the metal pot to the lower part or the upper part, and the lower part or the The other bottom surface of the metal pot is fixed by the upper part.

In this embodiment, for the circular concave shape of the metal pot, the inner and outer bottom surfaces through which the axis passes are selected as the fixing point, which is more stable and firm when fixed, and is convenient for the metal pot or the grinding robot to rotate and polish.

Embodiment two:

On the basis of Embodiment 1, the lower part includes a lower disc 31, a lower vacuum tube 35, and a lift cylinder 32. The upper port of the lower vacuum tube 35 passes through the lower disc 31, and the lower port is connected to a vacuum pump. The bottom end of the cylinder 32 is located on the base, and the upper end of the lifting cylinder 32 controls the lifting of the lower disc 31 and the lower vacuum tube 35; , 6, 7, 8), an upper vacuum tube and a fixed bracket, one end of the upper vacuum tube passes through the upper disc 21, and the other end is connected to a vacuum pump, and the fixed bracket includes a horizontal fixed bracket 22 and a vertical fixed bracket 23, The upper surface of the upper disc 21 is connected with the horizontal fixed bracket 22, the horizontal fixed bracket 22 is connected with the top of the vertical fixed bracket 23, and the lower end of the vertical fixed bracket 23 is connected with the base connected.

Certainly, another lift cylinder can also be installed on the top to control the upper disk 21 to move up and down.

Embodiment three:

On the basis of the second embodiment, the upper disk 21 and the horizontal fixed bracket 22 are together around the connection between the horizontal fixed bracket 22 and the vertical fixed bracket 23 under the action of the second upper motor. The axis rotates; the middle part of the vertical fixed bracket 23 has an auxiliary bracket 231, and the lower vacuum tube 35 passes through the auxiliary bracket 35.

This embodiment further enhances the stability of the equipment and provides more options for grinding angles.

Embodiment four:

On the basis of the second embodiment, the upper disk 21 and/or the lower disk 31 rotate around the axis (the common axis of the upper and lower disks). As shown in Figures 10, 11 and 12, the lower motor 33 is an example, the rotation axis of the lower motor 33 is parallel to the axis of the lower disc 31, and the power of the lower motor 33 is transmitted to the shaft sleeve through the transmission device, and the shaft sleeve passes through the Auxiliary bracket 231, wherein there is lower vacuum tube 35, the upper end of the shaft sleeve is fixed with the lower disc 31, the rotation of the shaft sleeve drives the lower disc 31 to rotate, and the lower motor 33 casing has a lift cylinder connection 34 for connecting with the lift cylinder 32 tops. Active end connection.

The purpose of this embodiment is to improve the grinding efficiency, so that the polished metal pot can rotate by itself, and further, it can cooperate with the grinding device to rotate in opposite directions to speed up the relative friction speed.

Embodiment five:

On the basis of the second embodiment, there is a rubber ring on the edge of the surface of the upper disc 21 and/or the lower disc 31 that is in contact with the metal pan bottom.

This embodiment is to enhance the sealing.

Embodiment six:

On the basis of the second embodiment, the lower disc 31 is in the shape of a truncated cone with a small top and a large bottom, as shown in FIG. 12 .

It is beneficial for the axis of the metal pan to coincide with the axis of the lower disc 31 .

Embodiment seven:

On the basis of Embodiment 2, the upper surface of the auxiliary bracket 231 has a laser emitter 2311, and the lower surface of the horizontal fixed bracket 22 has a laser detector 221, and the laser detector 221 is installed on the top of a channel. When the horizontal fixing bracket 22 and the upper disk 21 at its lower end are kept horizontal and the laser light is not blocked, the laser light emitted by the laser emitter 2311 can pass through the passage and be detected by the laser detector 221; The side of the channel is communicated with an air channel, and gas enters the channel from the air channel to discharge foreign matter in the channel.

Embodiment eight:

On the basis of the second embodiment, the upper disk 21 includes a fixed disk, a zoom disk and a suction disk, the zoom disk is between the fixed disk and the suction disk, the fixed disk, the zoom disk Concentric with the suction disk, the edge of the fixed disk is fixedly connected to the edge of the suction disk; a zoom cylinder 215 is fixed on the fixed disk, and the fixed end of the zoom cylinder 215 is fixed on the fixed disk, The movable end of the zoom cylinder is fixed on the zoom disk; there is a radial through hole 211 on the suction disk, and an oblique through hole 214 is arranged on the zoom disk, and the position of the radial through hole 211 is consistent with the The position of the oblique through hole 214 is corresponding; an axial connecting shaft passes through the radial through hole 211 and the oblique through hole 214, and the axial connecting shaft passes through the radial through hole 214 along the radial direction. The hole 211 moves, and also moves in the oblique through hole 214; the end of the axial connection shaft passing through the zoom disk has a protrusion 212; the fixed disk has a fixed shaft 216, and the fixed shaft 216 The axial connecting shaft is connected flexibly by a connecting piece 217; one said axial connecting shaft, one said fixed shaft 216, one said connecting piece 217, one said radial through hole 211 and one said The oblique through holes 214 form a set of scaling units.

In actual operation, the axes of the upper and lower discs may have a certain deviation. When the lower disc 31 moves the metal pot to the upper disc 21, the axis of the metal pot and the axis of the upper disc 21 will not be in a straight line , the metal pan is easily thrown away during the rotation and grinding process. The unique design of shrinking the upper disc can be automatically corrected to ensure that the axis of the metal pot and the axis of the upper disc 21 will be on a straight line.

Embodiment nine:

On the basis of the eighth embodiment, there are at least three sets of scaling units.

Three sets of scaling units can ensure smooth adjustment of the concentricity of the metal pot and the upper disc 21 .

The above disclosures are only preferred embodiments of the present invention, but are not intended to limit itself. Any changes and modifications made by those skilled in the art without violating the spirit of the present invention should fall within the scope of the present invention. within the scope of protection.

Claims (7)

1. An automatic positioner for polishing a metal pot comprises an upper part and a lower part, and is characterized in that the axes of the fixed parts of the upper part and the lower part are superposed; after the upper part or the lower part fixes the bottom surface of the metal pot, the upper part or the lower part moves along the axis, so that the metal pot is transferred to the lower part or the upper part, and the lower part or the upper part fixes the other bottom surface of the metal pot; the lower part comprises a lower disc, a lower vacuum tube and a lifting cylinder, the upper port of the lower vacuum tube penetrates through the lower disc, the lower port of the lower vacuum tube is connected with a vacuum pump, the bottom end of the lifting cylinder is positioned on the base, and the upper end of the lifting cylinder controls the lower disc and the lower vacuum tube to lift; the upper part comprises an upper disc, an upper vacuum tube and a fixed support, one end of the upper vacuum tube penetrates through the upper disc, the other end of the upper vacuum tube is connected with a vacuum pump, the fixed support comprises a horizontal fixed support and a vertical fixed support, the upper surface of the upper disc is connected with the horizontal fixed support, the horizontal fixed support is connected with the upper part of the vertical fixed support, and the lower end of the vertical fixed support is connected with the base; the upper disc comprises a fixed disc, a zooming disc and an adsorption disc, the zooming disc is arranged between the fixed disc and the adsorption disc, the fixed disc, the zooming disc and the adsorption disc are concentric, and the edge of the fixed disc is fixedly connected with the edge of the adsorption disc; a zooming cylinder is fixed on the fixed disc, the fixed end of the zooming cylinder is fixed on the fixed disc, and the movable end of the zooming cylinder is fixed on the zooming disc; the adsorption disc is provided with a radial through hole, the scaling disc is provided with an oblique through hole, and the position of the radial through hole corresponds to the position of the oblique through hole; an axial connecting shaft penetrates through the radial through hole and the oblique through hole, and moves in the radial through hole along the radial direction and also moves in the oblique through hole; one end of the axial connecting shaft, which penetrates out of the zooming disc, is provided with a bulge; the fixed disc is provided with a fixed shaft, and the fixed shaft is movably connected with the axial connecting shaft through a connecting piece; the axial connecting shaft, the fixed shaft, the connecting piece, the radial through hole and the inclined through hole form a set of zooming unit.

2. The automatic metal pot grinding positioner according to claim 1, wherein the upper disc rotates together with the horizontal fixed bracket about a connecting shaft between the horizontal fixed bracket and the vertical fixed bracket; an auxiliary support is arranged in the middle of the vertical fixing support, and the lower vacuum tube penetrates through the auxiliary support.

3. The automated metal pan grinding positioner of claim 1, wherein the upper disk and/or the lower disk rotate about an axis.

4. The automatic metal pot grinding positioner according to claim 1, wherein the edge of the surface of the upper disc and/or the lower disc, which is in contact with the bottom of the metal pot, is provided with a rubber ring.

5. The automatic metal pot grinding positioner according to claim 1, wherein the lower disc is in the shape of a truncated cone with a small upper part and a large lower part.

6. The automatic metal pot grinding positioner according to claim 2, wherein the upper surface of the auxiliary support is provided with a laser emitter, the lower surface of the horizontal fixing support is provided with a laser detector, the laser detector is mounted at the top of a channel, and when the horizontal fixing support and the upper disc at the lower end of the horizontal fixing support are kept horizontal and laser is not blocked, laser emitted by the laser emitter can pass through the channel so as to be detected by the laser detector; the side surface of the channel is communicated with an air channel, and air enters the channel from the air channel to discharge foreign matters in the channel.

7. The automatic positioner for grinding metal pots according to claim 1, wherein there are at least three sets of scaling units.

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