KR20220130536A - Metal graining apparatus and system - Google Patents

Abstract

The present invention relates to a fitting grinding apparatus and a system thereof, capable of preventing an abrasive belt from being released from a roller, preventing a shock, over-grinding and non-grinding during a grinding procedure, reducing work time through a step-by-step partial polishing on fittings, and preventing a delay time caused by maintenance, which can lead to smooth maintenance and quick grinding work. In accordance with the present invention, the fitting grinding apparatus includes: a grinding unit including a main pulley, a driven pulley, and an abrasive belt wound around the main pulley and the driven pulley to be rotated; a drive unit causing the driving pulley to be axially rotated; a support unit supporting the grinding unit; and a loosening preventing means for preventing the separation of the abrasive belt. The loosening prevention means includes: a rotary bracket installed to be rotatable on the support unit; an electric motor; a rotor rotated by receiving power from the electric motor; and a link having one end connected to the rotor and the other end connected to the rotary bracket to convert a rotational motion of the rotor into a pendulum motion of the rotary bracket. Further, the main pulley is installed to be connected to the rotary bracket, thereby performing a pendulum motion in interoperation with the pendulum motion of the rotary bracket.

Description

METAL GRAINING APPARATUS AND SYSTEM

The present invention relates to a hardware polishing apparatus and system, and more particularly, to a hardware polishing apparatus and system capable of automatically polishing metal tools step by step using a polishing apparatus using a polishing belt rotating on a pair of pulleys. will be.

In general, in order to manufacture various industrial parts, parts and fittings used in various fields such as mobile phone cases and faucets, direct processing (eg, cutting, cutting, grinding, etc.) or mechanically processing the mold that makes the shape Should be.

The precision of the above parts or fittings depends on the precision of the machining machine or mold processing, however, no matter how precisely the machining is done, the cut surface of the workpiece is formed sharp and rough. For this reason, when parts produced by press molds have sharpened cut surfaces and are intended to be used as parts for machines that require precision, it is common to further perform a grinding process of grinding the surface of the part using a grinding device. to be.

The conventional polishing apparatus is provided with a motor for generating rotational power, and has a circular grindstone mounted on the rotating shaft of the motor to rotate. did However, when the operator directly contacts the workpiece to the grinding wheel to perform the grinding work, there is a problem that not only is precise grinding difficult, but also a safety accident may occur.

In addition, in the conventional polishing method, since it is impossible to simultaneously grind the upper and lower surfaces of the workpiece by one grinding operation, the grinding operation is cumbersome because the upper and lower surfaces of the workpiece must be alternately polished, and the upper and lower surfaces of the workpiece are uneven There was a problem in that the quality was deteriorated due to excessive grinding. In addition, when the grinding operation is performed while the workpiece is gripped by hand, the upper and lower surfaces of the workpiece are not uniform with each other, so there is a problem in that a considerable deviation occurs and reliability is lowered.

In order to solve this problem, a polishing apparatus capable of automatically polishing the surface of a workpiece has been developed as in Korean Patent No. 10-0829037.

However, since the conventional automatic polishing apparatus has a structure in which a plurality of polishing machines are disposed on one or two articulated robots, when one articulated robot fails or when the grinder breaks down, there is a delay in maintenance due to maintenance. have a problem with In addition, since the articulated robot or the grinding machine has a fixed installation structure that cannot be moved, even if a partial malfunction of the system device occurs, the operation of the entire system is completely stopped and then maintenance is inconvenient, resulting in production disruption. There was a problem with this.

On the other hand, in the conventional polishing apparatus, damage to the workpiece and the polishing apparatus may occur due to the impact generated during polishing of the metal tool, and the product may be over-ground or unground due to the non-uniform appearance of the metal tool.

In addition, in the case of a polishing apparatus using a rotating abrasive belt caught on a pair of pulleys in a conventional polishing apparatus, in the case of abrasive belt detaching from the roller due to friction between the abrasive belt and the product during the polishing process of products such as metal fittings There was a problem that occurred.

Korean Patent Registration No. 10-0829037 (Registered on May 6, 2008)

The present invention is to solve the above problems,

SUMMARY OF THE INVENTION It is an object of the present invention to provide a hardware polishing apparatus and system capable of preventing an abrasive belt from being separated from a roller due to friction between the abrasive belt and the product during the polishing process of products such as metal fittings.

Another object of the present invention is to prevent damage to the workpiece and the polishing apparatus due to the impact generated during polishing of the bracket, and also prevent the case of over-grinding or non-grinding of the product due to the non-uniform appearance of the bracket. It is to provide a metal tool polishing apparatus and system that can do this.

Another object of the present invention is to provide a hardware polishing apparatus and system capable of performing maintenance without completely stopping the entire polishing operation even if a failure occurs in some of the plurality of polishing apparatuses.

According to an aspect of the present invention, there is provided a metal polishing apparatus comprising: a main pulley, a driven pulley, and a polishing unit including an abrasive belt wound around the main pulley and the driven pulley to rotate; a driving unit for causing shaft rotation of the main pulley; a support for supporting the abrasive; and an anti-loosening means for preventing the abrasive belt from being detached.

The loosening preventing means may include a rotation bracket that is axially rotatably installed in the support part; an electric motor; a rotor rotating by receiving power from the electric motor; And one end is connected to the rotor, the other end is connected to the rotation bracket, and a link for converting the rotational motion of the rotor into a pendulum motion of the rotational bracket.

And the main pulley, is installed to be connected to the rotation bracket, is configured to be linked to the pendulum movement together with the pendulum movement of the rotation bracket.

According to the present invention for achieving the above object, there is provided a metal polishing system comprising: a plurality of metal polishing apparatuses; a supply conveyor for supplying metals to the metal polishing apparatus; a discharge conveyor for discharging the polished metal fittings; a metal transport means including a rail installed between the supply conveyor and the discharge conveyor, a gripper for fixing the bracket, and a plurality of moving devices movably mounted on the rail; and a plurality of robots disposed to correspond to a plurality of metal polishing apparatuses, respectively.

In addition, the metal polishing apparatus is installed in plurality arranged along the rail direction.

The robot is configured to operate so that the metal tool can be polished by the abrasive belt by gripping the metal tool supplied from the supply conveyor or the moving device and moving it to the polishing belt side of the metal tool polishing device disposed at a corresponding position. .

According to the metal polishing apparatus according to the present invention, it is possible to prevent the case where the abrasive belt wound around the main pulley and the driven pulley is separated from the roller due to friction with the metal fitting during the polishing process and is loosened by causing a pendulum motion on the main pulley. , there is an advantage that can improve work efficiency accordingly.

According to the metal polishing apparatus according to the present invention, by providing a buffer means to the metal polishing apparatus, the polishing apparatus retreats above a specified load value and advances below the specified load value, thereby preventing over-grinding or ungrounding of the product. There is an effect that can be done.

In addition, by alleviating the impact applied to the polishing device including the polishing part and the metal tool when polishing the metal tool, it is possible to prevent damage to the workpiece and the polishing device due to the impact generated during the polishing process.

According to the metal tool polishing apparatus according to the present invention, by matching a plurality of articulated robots and a plurality of metal tool polishing apparatuses, the section in which the problem occurs is excluded from the work area and the normal section continues production activities, resulting in production disruption due to maintenance A system without this can be provided.

That is, when a partial failure occurs in the polishing apparatus or robot, it is possible to safely perform maintenance by moving the malfunctioning polishing apparatus or robot forward or backward using the forward/backward movement assistance means and the fixing table.

Accordingly, it is possible to prevent safety accidents during maintenance, and this has the advantage that, even if a partial failure occurs, there is no delay time due to maintenance, so that smooth maintenance and rapid polishing can be performed.

According to the metal polishing apparatus according to the present invention, the discharge conveyor is configured with first and second discharge conveyors for discharging the polished metal pieces spaced apart at regular intervals, and the conveyance for transferring the metal pieces discharged through the first and second discharge conveyors By configuring the conveyor, the discharge point of the bracket can be selected according to the number of polishing processes, so there is an advantage in reducing the unnecessary delay of the polishing operation of the bracket.

1 and 2 are perspective views showing a polishing apparatus according to an embodiment of the present invention.
Figure 3 is an exploded perspective view of a fixing plate, a moving plate, and a forward and backward movement auxiliary means of the polishing apparatus according to an embodiment of the present invention.
4 is a right cross-sectional view of a polishing apparatus according to an embodiment of the present invention.
5 and 6 are perspective views showing a state in which the vertical support plate, the buffer means, and the loosening prevention means of the present invention are installed.
Figure 7 is a view showing an operation in which vibration (pendulum motion) occurs in the main pulley of the grinding unit by the loosening prevention means of the present invention.
8 is a plan view showing a metal tool polishing system according to the present invention.
9 is a front view showing a metal tool polishing system according to the present invention.
Figure 10 is a state diagram in which the polishing apparatus of the present invention, the metal carrying means and the robot are arranged.
11 is a state diagram in which the polishing apparatus and the robot of the present invention are moved and arranged according to the occurrence of a failure.

The terms used herein are used only to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present specification, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It is to be understood that this does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

In addition, in this specification, "on or on top of" means to be located above or below the target part, which does not necessarily mean to be located above with respect to the direction of gravity. That is, the term "on or on top of" referred to in the present specification includes not only a case located above or below the target part, but also a case located in front or behind the target part.

Also, when a part of a region, plate, etc. is said to be “on or on” another part, it means that another part is in-between as well as when it is in contact with or spaced "on or on" another part. Including cases where there is

In addition, in this specification, when a component is referred to as "connected" or "connected" with another component, the component may be directly connected or directly connected to the other component, but in particular It should be understood that, unless there is a description to the contrary, it may be connected or connected through another element in the middle.

Also, in this specification, terms such as first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

Hereinafter, preferred embodiments, advantages and features of the present invention will be described in detail with reference to the accompanying drawings.

1 and 2 are perspective views illustrating a polishing apparatus according to an embodiment of the present invention, and FIG. 3 is an exploded perspective view of a fixing plate, a moving plate, and a forward and backward movement auxiliary means of the polishing apparatus according to an embodiment of the present invention. 4 is a right sectional view of a polishing apparatus according to an embodiment of the present invention, and FIGS. 5 and 6 are perspective views showing a state in which the vertical support plate, the buffer means, and the loosening prevention means of the present invention are installed, and FIG. 7 is a view showing an operation in which vibration (pendulum motion) occurs in the main pulley of the grinding part by the loosening prevention means of the present invention.

1 to 7, the metal polishing apparatus 30 according to the present invention removes the polishing part 39 for polishing the metal, the driving part, the support part for supporting the polishing part 39, and the abrasive belt 38. It may include a means for preventing loosening (70) to prevent, preferably, it may further include a buffer means (60).

The abrasive part 39 is a device that is provided with an abrasive belt 38 and is installed on the support part for grinding of metal fittings, and includes a main pulley 36 , a driven pulley 37 , and a main pulley 36 and a driven pulley 37 . and an abrasive belt 38 wound around the rotating abrasive belt 38 .

The main pulley 36 is connected to the shaft of the driving motor 36a of the driving unit and is installed so as to be rotatable by receiving power from the driving motor 36a. According to one embodiment, the main pulley 36 may be installed in a shaft-rotatable form in a rotation bracket 73 to be described later.

On the other hand, although the main pulley 36 of the embodiment of Fig. 1 is shown as a single large cylinder, it may be configured as two small cylinders that are separated from each other for detailed processing of the bracket. In this case, the two main pulleys 36 may be installed in a structure spaced apart from each other in the left and right direction.

The driven pulley 37 is installed so as to be axially rotatable in the support part. According to one embodiment, the driven pulley 37 may be installed in a shaft-rotatable form on a horizontal support plate 35 to be described later. In this case, the driven pulley 37 may be coupled to the bearing 37a on the horizontal support plate 35 .

On the other hand, although the driven pulley 37 of the embodiment of FIG. 1 is shown as one large cylinder, it may be configured as two small cylinders that are separated from each other for detailed processing of the bracket. In this case, the two driven pulleys 37 may be installed in a structure spaced apart from each other in the left and right directions.

The main pulley 36 and the driven pulley 37 may further include a cushioning material 38a having elasticity. In this case, the cushioning material 38a functions to absorb the shock generated during polishing and to prevent the abrasive belt 38 from being damaged.

According to one embodiment, the cushioning material 38a may be formed on the outer peripheral surfaces of the main pulley 36 and the driven pulley 37 . In this case, the cushioning material 38a is formed in a ring shape and may be attached along the outer peripheral surfaces of the main pulley 36 and the driven pulley 37 .

The abrasive belt connects the main pulley 36 and the driven pulley 37, and an abrasive is formed on the surface in contact with the metal fitting.

The abrasive belt rotates in an endless orbit while being wound around the main pulley 36 and the driven pulley, and operates to abrade the corresponding metal tool in contact with the metal tool.

The driving unit may include, for example, a driving motor 36a as a power source for causing shaft rotation of the main pulley 36 . In this case, the drive shaft of the drive motor 36a is connected to the rotation shaft of the main pulley 36, and the rotational force generated from the drive motor 36a is transmitted to the main pulley 36, thereby causing axial rotation of the main pulley 36. there will be

The support part includes a support body 34 and a horizontal support plate 35 in detail as a member for supporting the abrasive part 39 .

The support body 34 is a support body for supporting each configuration including the grinding part 39 and the driving part. The support body 34 may be configured as a polyhedral box-shaped member, as in the embodiment of FIGS. 1 and 2 , for example.

The support body 34 is configured so that electrical wiring for controlling the driving unit and the like can be made, and a horizontal support plate 35, a polishing unit 39, a driving unit, and loosening preventing means and buffering means to be described later can be installed. is composed

The horizontal support plate 35 is disposed on the support body 34 as a member for installing the polishing part 39 , and a driven pulley 37 is installed and fixed to one side of the horizontal support plate 35 .

The horizontal support plate 35 according to the embodiment of FIGS. 1 and 2 is formed of a plate-shaped member, and this plate-shaped member has a structure arranged horizontally on the support body 34 .

The horizontal support plate 35 may be installed to be movable in the front-rear direction independently from the support body 34, which is to alleviate the impact generated during bracket grinding. In this case, the horizontal support plate 35 will be described later. It is installed to be connected to the buffer means (60). The details of this will be described later.

For reference, the term 'front and rear direction' used in the present invention refers to both directions parallel to the direction from the main pulley 36 side to the driven pulley 37 . More specifically, the 'front direction' refers to a direction from the main pulley 36 side to the driven pulley 37 side, and the 'rear direction' refers to the driven pulley 36 side from the driven pulley 37 side. ) refers to the direction toward the side.

In addition, the term 'left and right direction' used in the present invention refers to a left direction and a right direction parallel to the direction orthogonal to the aforementioned front-rear direction.

In the case of an abrasive device using an abrasive belt 38 that rotates while being caught on a pair of pulleys, the abrasive belt 38 is separated from the roller due to friction between the abrasive belt 38 and the product in the polishing process of products such as brackets. cases may occur.

The loosening preventing means 70 of the present invention is a device for preventing the abrasive belt 38 from separating from the roller by friction and loosening by imparting a pendulum motion to the main pulley 36 . The loosening preventing means 70 includes a rotation bracket 73 , an electric motor 74 , a rotor 76 , and a link 78 .

The rotation bracket 73 is a member that is axially rotatably installed, and one side is axially rotatably connected to the support, and the other side is provided with a main pulley 36 and a driving motor 36a.

According to an embodiment, the rotation bracket 73 is configured in a form in which a vertical member of a vertically thin plate-shaped structure and a horizontal member of a plate-shaped structure lying horizontally are approximately 'B'-shaped. In this case, the vertical plate of the rotation bracket 73 is rotatably coupled to the rotation shaft 72 provided in the second connecting rod 623 as a rotation axis, and the horizontal plate of the rotation bracket 73 has a main pulley 36 and the driving motor 36a may be coupled to each other.

The rotor 76 is a member that receives power from the electric motor 74 and rotates. According to one embodiment, the rotor 76 may be composed of a disc-shaped rotating cam having a main shaft rotating axially and an eccentric shaft 75 deviated from the main shaft.

In this case, the main shaft of the rotor 76 is connected to the drive shaft of the electric motor 74 to rotate, and the eccentric shaft 75 is connected to the link 78 to cause the link 78 to reciprocate in the vertical direction. do.

For reference, in the embodiment of FIGS. 5 to 7 , the rotor 76 is configured in the form of a rotation cam, but the same purpose can be achieved even if the rotor 76 is configured in the form of a crankshaft. . In this case, the link 78 connected to the rotor 76 functions as a connecting rod of the crank device.

The link 78 is a medium for interlocking the rotational motion of the rotor 76 with the rotational bracket 73 .

The link 78 may be formed in a rod shape. In this case, one end is connected to the rotor 76 in a rotatable state, and the other end is connected to the rotation bracket 73 in a rotatable state.

According to one embodiment, one end of the link 78 is rotatably connected to the eccentric shaft 75 of the rotor 76 , and the other end of the link 78 is an interlocking shaft ( ) formed in the rotation bracket 73 . 77) can be rotatably connected. And, the link 78 may be configured in a form including a turnbuckle connecting the interlocking shaft 77 and the eccentric shaft (75).

According to the rotor 76 , the link 78 , and the rotation bracket 73 as described above, when the rotor 76 rotates, the rotational movement of the rotor 76 is the pendulum movement of the rotation bracket 73 . will convert it to

That is, when the rotor 76 rotates according to the driving of the electric motor 74 , the eccentric shaft 75 formed in the rotor 76 rotates, and at this time, the link 78 connected to the eccentric shaft 75 . ) as a medium, the rotation bracket 73 causes a pendulum movement to reciprocate around the rotation shaft 72 within a predetermined range.

Here, the 'pendulum motion' refers to a motion of reciprocating the curved trajectory while drawing a curved trajectory within a range of less than 180° between the rotational axis 72 as the rotational reference axis.

As such, when the pendulum movement of the rotation bracket 73 occurs through the link 78 during the rotation operation of the rotor 76 , the main pulley 36 installed in the rotation bracket 73 also moves the pendulum of the rotation bracket 73 . It is linked to the pendulum motion together with the rotating bracket, and accordingly, the main pulley 36 is rotated to generate vibration. For this reason, it is possible to prevent the case where the abrasive belt 38 wound around the main pulley 36 and the driven pulley 37 is detached from the roller due to friction with the bracket during the polishing process and is unwound.

In the polishing apparatus, damage to the workpiece and the polishing apparatus may occur due to the impact generated during polishing of the metal tool, and the product may be over-ground or unground due to the uneven shape of the metal tool.

The buffer means 60 of the present invention is a device that functions to alleviate the impact generated during polishing of the metal fittings and to prevent over-grinding and non-grinding of the metal fittings.

The buffer means 60 is configured to provide a buffering force by moving the horizontal support plate 35 to which the grinding part 39 is connected in the front-rear direction.

This buffering means 60 may include a first buffering unit 610, and preferably may be configured to act as a double buffer by further including a second buffering unit 620.

The first buffer unit 610 includes a first connecting rod 613 , a first guide rod 614 , a first air cylinder 615 , and a first guide unit 612 .

The first connecting rod 613 is provided in a structure protruding downward of the horizontal support plate 35 and is a member disposed to be spaced apart from each other in the front-rear direction.

According to one embodiment, the first connecting rod 613 may be formed of a plate-shaped member formed in a structure vertically erected in a downward direction from the lower surface of the horizontal support plate 35 .

The first guide rod 614 is a rod-shaped member having one end fixedly coupled to the first connecting rod 613 . The first guide rods 614 may be provided as a pair spaced apart from each other in the left and right directions.

On the other hand, the first connecting rod 613 may be configured as a pair spaced apart in the front-rear direction, and in this case, one end of the first guide rod 614 is coupled and fixed to the first connecting rod 613 in the front, and the other The end may be coupled and fixed to the first connecting rod 613 at the rear.

The first air cylinder 615 is a device that buffers the external force through a reaction force due to internal pneumatic pressure when an external force such as an impact is applied.

The first air cylinder 615 has a cylinder rod protruding outside the cylinder body, and the cylinder body of the first air cylinder 615 is fixedly installed on the support body 34, and the first air cylinder 615 The cylinder rod of the one end is configured to be connected to the first connecting rod (613).

The first guide part 612 is disposed in a fixed state on the support body 34 to support the first guide rod 614, so that the first guide rod 614 is slidable in the front-rear direction to support it. is composed The first guide part 612 may be configured to be seated on the upper surface of the support body 34 .

According to an embodiment, the first guide part 612 may be coupled and fixed on the support body 34 through a coupling member 611 . In this case, the coupling member 611 may be formed of a plate-shaped member through which a coupling hole is formed, and a bolt fastening groove may be formed in the first guide part 612 . In addition, the upper portion of the coupling member 611 may be coupled to the first guide part 612 by bolting, and the lower portion may be coupled to the support body 34 by bolting.

The second buffer unit 620 includes a second connecting rod 623 , a second guide rod 622 , a second air cylinder 625 , and a second guide unit 621 .

The second buffering part 620 is configured to act so that the buffering action of the horizontal support plate 35 is made more smoothly during metal processing.

The second connecting rod 623 is disposed in the front or upper region of the horizontal support plate 35 , independently of the horizontal support plate 35 . It is a member installed so as to be movable in the front-rear direction.

According to one embodiment, the second connecting rod 623 may be formed in the form of a plate-shaped member disposed in a vertically erected structure, and may be configured in a structure disposed between the main pulley 36 and the horizontal support plate 35 . .

The second guide rod 622 is a rod-shaped member having one end fixedly coupled to the second connecting rod 623 . The second guide rods 622 may be provided as a pair spaced apart from each other in the left and right directions.

The second air cylinder 625 is a device that buffers the external force through a reaction force due to internal pneumatic pressure when an external force such as an impact is applied.

The second air cylinder 625 includes a cylinder rod protruding outside the cylinder body, and the cylinder body of the second air cylinder 625 is fixedly installed on the horizontal support plate 35, and the second air cylinder 625 The cylinder rod of the one end is configured to be connected to the second connecting rod (623).

According to an exemplary embodiment, the second air cylinder 625 may be coupled and fixed while being connected to the horizontal support plate 35 through the fixing bracket 624 .

According to one embodiment, the rod of the second air cylinder 625 connected to the second connecting rod 623 is connected to the second connecting rod 623 by being coupled to the bearing part 71 installed on the second connecting rod 623 . can be installed.

On the other hand, when the bearing part 71 is provided in the second connecting rod 623 , the above-described rotation shaft 72 may be rotatably coupled to the bearing unit 71 formed in the second connecting rod 623 . In this case, the rotation bracket 73 is configured to be axially rotatably installed on the second connecting rod 623 through the rotation shaft 72 .

The second guide part 621 is disposed in a fixed state on the horizontal support plate 35 to support the second guide rod 622, and the second guide rod 622 is slidable in the front and rear direction to support it. is composed The second guide part 621 may be configured to be seated on the upper surface of the horizontal support plate 35 .

According to the buffer means 60 including the above-described first buffer 610 and the second buffer 620, there is an advantage that can prevent the product from being over-ground or unground due to the non-uniform appearance of the sphere. .

That is, by providing the buffer means 60 to the hardware polishing apparatus, the polishing apparatus retreats above the specified load value and advances below the specified load value, thereby preventing the product from being over-ground or unground.

In addition, by alleviating the impact applied to the polishing device including the polishing part 39 and the metal tool when polishing the metal tool, it is possible to prevent damage to the workpiece and the polishing device due to the impact generated during the polishing process.

The metal polishing apparatus according to the present invention may further include a fixing plate 32 , a moving plate 33 , a fixing table 31 , a guide rail 320 , and a rotating roller.

The fixing plate 32 is a configuration that is fixedly installed on the ground for installation of the polishing apparatus 30 , and may be configured in the form of a plate body horizontally disposed on the ground. The fixing plate 32 may be installed and fixed to the ground through normal bolting.

The movable plate 33 includes a plate-like member disposed on the fixing plate 32 and configured to be able to select a fixing position on the fixing plate 32 .

The fixing table 31 is a member for firmly fixing and installing the movable plate 33 to the fixing plate 32 through bolt fastening.

The fixing base 31 may be provided in plurality in a structure that is spaced apart from each other along the longitudinal direction of the fixing plate 32 . This is to ensure a stable installation and fixation state of the polishing apparatus 30, and to safely maintain it through a moving arrangement when a failure occurs.

That is, the fixing plate 32 and the moving plate 33 including the fixing table 31 have a safety accident even while the polishing operation is continuously performed when a failure occurs in some of the polishing apparatuses 30 among the plurality of polishing apparatuses 30 . It is a configuration that allows maintenance to be performed safely without the risk of occurrence.

The movable plate 33 is configured such that a fixing position on the fixing plate 32 is selected by being bolted to at least one fixing rod 31 selected from among the plurality of fixing rods 31 .

The moving plate 33 is configured to be coupled to the holder 31 of the fixing plate 32 in order to place the abrasive belt 38 mounted on the polishing apparatus 30 in an appropriate position, and the polishing or polishing apparatus 30 of the metal tool ) is selectively fixedly installed on the front and rear of the fixing plate 32 for safe maintenance.

For this purpose, the moving plate 33 may be equipped with a forward/backward movement auxiliary means 330 for easily moving the moving plate 33 .

At this time, the guide rail 320 for guiding the movement of the forward and backward movement auxiliary means 330 may be formed on the fixing plate 32 in the front-rear direction.

The guide rail 320 is formed along the longitudinal direction of the front and rear on the fixing plate 32 to guide the movement of the rotating roller. According to an embodiment, the guide rail 320 may be configured in the form of a rail having a long groove having a 'C' cross-section.

The forward and backward movement auxiliary means 330 includes a pair of coupling and fixed support 331 on both sides of the lower portion of the moving plate 33, a rotation support shaft 332 that is respectively bearing-coupled to the support 331, a rotation support shaft ( 333 is coupled to both ends and may be configured to include a rotating roller 333 fitted into the groove of the guide rail 320 of the fixing plate 32 .

The rotating roller 333 is installed on the lower surface of the moving plate 33 and is configured to be movable along the guide rail 320 . Therefore, the moving plate 33 can select a fixed position on the fixed plate 32 by moving in the front-rear direction through the rotating roller, and can be fixed to the fixed position by being bolted to the fixed base 31 at the selected position.

8 is a plan view showing a metal tool polishing system according to the present invention, FIG. 9 is a front view showing a metal tool polishing system according to the present invention, and FIG. and FIG. 11 is a state diagram in which the polishing apparatus and the robot of the present invention are moved and disposed according to the occurrence of a failure.

8 to 11 , the metal polishing system 100 according to the present invention includes the above-described metal polishing apparatus 30 , a supply conveyor 10 for supplying metals to the metal polishing apparatus 30 , and the polished metal. A discharge conveyor 20 for discharging the metal, a rail installed between the supply conveyor 10 and the discharge conveyor 20, a metal conveying means 40 for transporting the metal in the left and right directions, and a plurality of metal polishing devices. It includes a plurality of robots 50 that are respectively disposed correspondingly.

The supply conveyor 10 is configured to automatically supply metal tools for grinding processing, and may be configured as a conventional conveyor.

The discharge conveyor 20 is configured to discharge the polished metal pieces through stepwise partial polishing using the polishing apparatus, the metal conveying means 40 and the robot 50. Like the supply conveyor 10, it is a known conventional conveyor. configurable.

The metal polishing apparatus 30 is provided in plurality arranged along the rail direction, and the plurality of metal polishing apparatus 30 is provided in the left and right directions between the supply conveyor 10 and the discharge conveyor 20 .

The metal polishing apparatus 30 is provided with an abrasive belt 38 for abrasive processing, and a plurality of them are arranged in the left and right directions between the supply conveyor 10 and the discharge conveyor 20, and subdivide the partial polishing of the metal fittings to precisely It may be composed of 5 to 15 pieces spaced apart at equal intervals to be performed.

The robot 50 grips the metal fitting supplied from the supply conveyor 10 or the moving device, and moves it to the polishing belt 38 side of the metal tool polishing device disposed at a corresponding position, so that the corresponding bracket is the abrasive belt 38. It operates so that it can be polished by

The metal carrying means 40 includes a gripper for fixing the metal and a plurality of moving devices 43 movably mounted on the rail.

Specifically, the metal transport means 40 is installed between the supply conveyor 10 and the discharge conveyor 20 to transfer the partially machined metal parts in one polishing device to the adjacent another polishing device 30 . As a configuration to do, it may be composed of a rail 41 installed long in the left and right direction between the supply conveyor 10 and the discharge conveyor 20 , and a plurality of moving devices 43 installed on the rail 41 .

At this time, each moving device may be equipped with a driving means (not shown) for moving along the rail 41 under the control of a conventional controller.

In addition, the moving device 43 is preferably disposed between the plurality of polishing devices 30 so as to easily transfer the partially polished metal tool to another adjacent polishing device 30 , respectively. A known conventional gripper 45 for gripping and fixing a metal fitting may be installed in the moving device 43 of the .

The robot 50 is configured to partially grind the metal tool using the polishing device 30 and move the partially polished metal tool to the moving device 43 of the metal transport means 40, and each polishing device 30 is It may be composed of a plurality of pieces disposed at positions corresponding to the respective polishing apparatuses 30 so as to perform partial polishing of the metal tools through the polishing apparatus.

It is preferable that the robot 50 is configured to facilitate maintenance by moving and disposing when a failure occurs, similarly to the polishing apparatus 30 .

The robot 50 may be composed of a known conventional industrial articulated robot capable of moving in several directions through joints, and each robot 50 has a known conventional gripper 51 for gripping and fixing brackets. can be installed.

On the other hand, the discharge conveyor 20 may be installed in a single configuration so that 10 polishing devices can be arranged between the supply conveyor 10 and the discharge conveyor 20, but when polishing a metal having a relatively simple shape, 10 It can be configured so that it can be discharged by completing the polishing of the metal tool in the middle without going through all of the polishing devices.

This is disposed between the first discharge conveyor 21 and the supply conveyor 10 and the first discharge conveyor 21, the discharge conveyor 20 is spaced apart in the left and right direction of the supply conveyor 10 and operates in the front-rear direction It can be easily achieved through the configuration of the second discharge conveyor 22 that operates in the front-rear direction, and at this time, the rear of the first and second discharge conveyors 21 and 22 are arranged long in the left and right directions to discharge the first and second discharges. It is more preferable that a transfer conveyor 23 for transferring the metals discharged through the conveyors 21 and 22 is further provided.

In addition, when the discharge conveyor 20 is composed of the first and second discharge conveyors 21 and 22 as described above, a separate supply conveyor 10 for supplying brackets is provided on one side of the second discharge conveyor 22 . By further configuring it, the metal polishing rate can be further improved.

The operation of the metal polishing apparatus and system as described above is as follows.

First, when the metal is supplied through the supply conveyor 10 , the robot 50 grips the metal on the supply conveyor 10 , and then the polishing device 30 disposed at a position corresponding to the robot 50 . The operation of moving to the abrasive belt 38 configured in the abrasive unit 39 is performed, and at the same time, the driving motor 36a configured in the abrasive unit 39 is interlocked and wound around the main pulley 36 and the driven pulley 37 . The true abrasive belt 38 rotates in an endless track.

Therefore, it is possible to automatically grind a part of the bracket according to the movement of the robot 50. The impact generated during grinding of the bracket is the cushioning material 38a and the grinding formed in the main pulley 36 and the driven pulley 37. It is absorbed by the buffer means 60 provided in the apparatus 30 , and damage to the hardware and the polishing apparatus 30 can be prevented in advance.

In addition, during the driving and continuous polishing of the abrasive part 39 as described above, the abrasive belt 38 wound around the abrasive part 39 may be unwound. Even if continuous rotation and external force are applied to 38, it is possible to prevent the abrasive belt 38 from loosening, and thereby, it is possible to stably and precisely perform polishing of the metal tool.

After the partial polishing of the bracket is completed using the first polishing device 30 and the corresponding first robot 50 as described above, the partially polished bracket is transferred to the bracket carrying means ( It can be moved by the moving device 43 of 40), and the bracket gripped by the moving device 43 is adjacent to the polishing device 30, that is, the second polishing by the moving device 43 moving along the rail 41. It is positioned as a portion corresponding to the abrasive belt 38 of the device 30 .

Therefore, the second robot 50 is able to grip the bracket in the moving device 43 and move it to the abrasive belt 38 of the second polishing device 30. In the present invention, through repetition of the above-described operation, It is possible to move to the next stage at the same time as partial grinding is performed secondarily, so that it is possible to quickly perform step-by-step grinding of metal parts through continuous repetition of the above operation.

On the other hand, when a partial failure occurs in the polishing apparatus 30 or the robot 50, the malfunctioning polishing apparatus ( 30) or by moving the robot 50 forward or backward, it is possible to safely perform maintenance.

That is, it is possible not only to prevent the malfunctioning polishing device 30 or robot 50 from interfering with the polishing process, but also to prevent safety accidents during maintenance, and even if a partial failure occurs due to this, maintenance is required. As there is no delay time, it is possible to perform smooth maintenance and rapid grinding work.

In the above, preferred embodiments of the present invention have been described and illustrated using specific terms, but such terms are only for clearly describing the present invention, and the embodiments and described terms of the present invention are the spirit and scope of the following claims. It is obvious that various changes and changes can be made without departing from it. Such modified embodiments should not be separately understood from the spirit and scope of the present invention, but should be considered to fall within the scope of the claims of the present invention.

10: feed conveyor 20: discharge conveyor
21: first discharge conveyor 22: second discharge conveyor
23: transfer conveyor 30: grinding device
31: fixing base 32: fixing plate
33: moving plate 34: support body
35: horizontal support plate 36: main pulley
36a: drive motor 37: driven pulley
37a: bearing 38: abrasive belt
38a: cushioning material 39: grinding part
40: metal carrying means 41: rail
43: mobile device 50: robot
60: buffer means 70: means for preventing loosening
71: bearing part 72: rotation shaft
73: rotation bracket 74: electric motor
75: eccentric shaft 76: rotor
77: linkage shaft 78: link
320: guide rail 330: forward and backward movement auxiliary means
331: support 332: rotation support shaft
333: rotation roller 610: first buffer unit
611: coupling member 612: first guide part
613: first connecting rod 614: first guide rod
615: first air cylinder 620: second buffer unit
621: second guide portion 622: second guide rod
623: second connecting rod 624: fixing bracket
625: second air cylinder

Claims (10)

a grinding unit comprising a main pulley, a driven pulley, and an abrasive belt wound around the main pulley and the driven pulley to rotate; a driving unit for causing shaft rotation of the main pulley; a support for supporting the abrasive; and an anti-loosening means for preventing separation of the abrasive belt,
The loosening prevention means,
a rotation bracket that is axially rotatably installed on the support part;
electric motor;
a rotor rotating by receiving power from the electric motor; and
A link having one end connected to the rotor and the other end connected to the rotation bracket to convert the rotational motion of the rotor into the pendulum motion of the rotation bracket; and
the main pulley,
It is installed to be connected to the rotation bracket, and is configured to be linked to the pendulum movement of the rotation bracket during the pendulum movement and to make a pendulum movement together.
The method of claim 1,
The rotor is composed of a rotating cam having a main shaft rotating shaft, and an eccentric shaft deviated from the main shaft,
One end of the link is rotatably connected to the eccentric shaft,
The other end of the link is rotatably connected to an interlocking shaft formed in the rotation bracket.
3. The method of claim 2,
wherein the link includes a turnbuckle.
The method of claim 1,
It further includes a first buffer for alleviating the shock generated during grinding of the bracket and preventing over- and non-grinding of the bracket,
The support part,
support body; and a horizontal support plate on one side of which the driven pulley is installed, disposed on the support body, and movably installed in the front-rear direction separately from the support body;
The first buffer unit,
a first connecting rod provided in a structure protruding downward of the horizontal support plate and spaced apart from each other in the front-rear direction;
a rod-shaped first guide rod having one end connected to the first connecting rod;
a first air cylinder having a cylinder rod protruding outside the cylinder body, the cylinder body being fixedly installed on the support body;
the cylinder rod having one end connected to the first connecting rod; and
and a first guide part that supports the first guide rod while being fixed on the support body, and supports the first guide rod to be slidably moved in the front-rear direction.
5. The method of claim 4,
The first guide portion is coupled and fixed on the support body through a coupling member,
An upper portion of the coupling member is fastened to the first guide portion, and a lower portion of the coupling member is fastened to the support body.
The method of claim 1,
It further includes a second buffer part for alleviating the shock generated during grinding of the bracket and preventing over-grinding and non-grinding of the bracket,
The support part,
support body; and a horizontal support plate having the driven pulley installed on one side and disposed on the support body;
The second buffer unit,
a second connecting rod disposed in the front or upper region of the horizontal support plate and movably installed in the front and rear directions separately from the horizontal support plate;
a rod-shaped second guide rod having one end connected to the second connecting rod;
a second air cylinder having a cylinder rod protruding outside the cylinder body, the cylinder body being fixedly installed on the horizontal support plate;
the cylinder rod having one end connected to the second connecting rod; and
and a second guide part supporting the second guide rod in a fixed state on the horizontal support plate, and supporting the second guide rod to be slidably movable in the front-rear direction.
The rotation bracket is
A metal polishing apparatus, characterized in that it is rotatably installed on the second connecting rod.
The method of claim 1,
a fixing plate that is fixedly installed on the ground; and
and a movable plate disposed on the fixing plate and configured to select a fixing position on the fixing plate.
8. The method of claim 7,
Further comprising a plurality of fixtures formed in a structure spaced apart from each other along the longitudinal direction of the front and rear of the fixing plate,
and the movable plate is configured to be fixed on the fixing plate by being bolted to at least one fixing member selected from among the plurality of fixing rods.
8. The method of claim 7,
Guide rails formed along the longitudinal direction of the front and rear on the fixing plate; and
and a rotating roller configured to be movable along the guide rail and mounted on a lower surface of the moving plate.
10. A metal polishing apparatus according to any one of claims 1 to 9;
a supply conveyor for supplying metals to the metal polishing apparatus;
a discharge conveyor for discharging the polished metal fittings;
a metal transporting means including a rail installed between the supply conveyor and the discharge conveyor, a gripper for fixing the bracket, and a plurality of moving devices movably mounted on the rail; and
Includes; a plurality of robots disposed to correspond to a plurality of metal polishing apparatus
The metal tool polishing apparatus is provided with a plurality of pieces arranged along the rail direction,
The robot is
metal tool polishing characterized in that by gripping the metal tool supplied from the supply conveyor or the moving device and moving it toward the polishing belt side of the metal tool polishing device disposed at a corresponding position, the metal tool is operated so that the metal tool can be polished by the polishing belt. system.

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