KR102644917B1 - Clamping device of CNC machine - Google Patents

Abstract

The present invention relates to a clamping device for CNC equipment, which can be safely protected from external contaminants by hiding the loading surface of the loading block when the cleaning tank is in an unclamping operation, and when the cleaning tank is in a clamping operation, the loading block is pulled out. It includes a base (10), a fixed arm (20), a movable arm (30), and a cleaning tank (40) so that the loading surface is cleaned by rubbing against the cleaning pad and effectively prevents loading problems caused by foreign substances. It consists of the main components.

Description

Clamping device of CNC machine

The present invention relates to a clamping device for CNC equipment, and more specifically, when the cleaning tank is in an unclamping operation, the loading surface of the loading block is hidden to safely protect it from external contaminants, and when the cleaning tank is in a clamping operation, the loading surface of the loading block is hidden. This relates to a clamping device for CNC equipment that can effectively prevent loading defects in workpieces due to foreign substances by cleaning the loading surface by rubbing against a cleaning pad during the drawing.

Typically, CNC equipment is a device that fixes a workpiece and automatically processes the workpiece by controlling it with input values using cutting tools, including end mills and cutters. The workpiece is clamped in a vise to expose the machined portion, and then processed. , After cutting processing is completed, the vise is unclamped to change the posture of the workpiece to machine another workpiece.

In this way, since the part to be machined must be changed while changing the clamping position of the workpiece, the machining time is delayed and the machining precision is reduced.

Accordingly, in the previously disclosed registered patent No. 10-1989190, a shelf part installed at a distance from the lower side of the CNC equipment; and at least one clamping part that is connected and installed to slide in the left and right direction on the upper side of the shelf part, and is fastened to prevent the workpiece processed by CNC equipment from moving during processing, wherein the shelf part performs a sliding movement of the clamping part. At least one sliding groove formed in the left and right direction is formed on the upper side for guiding, and the clamping part includes a base plate connected to the upper side of the shelf unit so as to slide in the left and right direction along the sliding groove. A support portion fixedly installed at the rear end of the base plate; a fixing part disposed at a distance from the front end of the support part and pressing and fixing the workpiece seated between the support part while moving in the direction of the support part; And a clamping pressure part installed at the front end of the fixing part, which extends or contracts in response to the rotation of the pressure lever installed at the front end, and pushes the fixing part toward the support part or pulls it in a direction away from the support part. The technology has already been presented.

However, the prior art is intended to fasten the workpiece so that it does not move during cutting using CNC equipment, but in order to change the cutting position, the workpiece must be separated and clamped again, so the processing quality depends on the operator's skill level. There was a problem with large deviations occurring.

KR 10-1989190 B1 (2019.06.07.)

Accordingly, the present invention was conceived to solve the above problems. When the cleaning tank is in an unclamping operation, the loading surface of the loading block is hidden to safely protect it from external contaminants, and when the cleaning tank is in a clamping operation, the loading block The purpose is to provide a clamping device for CNC equipment that can effectively prevent loading defects in workpieces caused by foreign substances by cleaning the loading surface by rubbing against the cleaning pad during the drawing.

In order to achieve this purpose, the features of the present invention include: a base (10) installed on the table (T) of CNC equipment and provided with a guide rail (11) on the upper surface; A fixing arm (20) installed at one end of the base (10) and forming an 'ㄴ'-shaped first reference surface (21); It is installed opposite the fixing arm 20, is transported linearly along the guide rail 11 by a driving means, and an L-shaped second reference surface 31 is formed at a position corresponding to the first reference surface 21. movable arm (30); and a loading surface 41 that is detachably mounted on the first and second reference surfaces 21 and 31 and on which the workpiece A is seated, and is linked to the loading/unclamping operation of the workpiece A. , a cleaning tank 40 provided to clean the loading surface 41.

At this time, the cleaning tank 40 includes a crude body 42 in which a fastening hole 42a is formed to be bolted to the first and second reference surfaces 21 and 31, and an upper portion of the crude body 42. A first rod hole 43 formed laterally in the area, a second rod hole 44 formed laterally below the first rod hole 43, and are inserted into the first rod hole 43, A sensing rod 45 in which an elastic body (S) exerts a stretching transport force in the outer direction of the first rod hole 43, a first rack 45a is formed on the bottom, and an inclined surface 45b is formed on the end, , a loading block 46 that is inserted into the second load hole 44, has a first rack 46a formed on the upper surface, and a loading surface 41 for supporting the workpiece A is formed on the upper surface of the end, , is rotatably installed between the first and second rod holes (43) and (44), and is engaged with the first and second racks (45a) (46a) to move the sensing rod (45) and the loading block (46) in opposite directions. It is characterized by including a pinion (47) for linear transport.

In addition, a cleaning pad 48 is installed on the inner peripheral surface of the first load hole 43 and is in contact with the loading surface 41 to remove foreign substances when the loading block 46 is transported in a straight line.

In addition, when the cleaning tank 40 operates to unclamp the workpiece (A), when the sensing rod 45 is stretched and transferred by the elastic body (S), the loading block 46 is linked to the pinion 47 to 2 As it enters the load hole 44 in the inner direction, the loading surface 41 waits in a hidden state, and when the workpiece A is loaded between the cleaning tanks 40, the inclined surface 45b is aligned with the workpiece A. When the sensing rod 45 is inserted into the first load hole 43 while sliding, the loading block 46 is linked to the pinion 47 and is pulled outward from the second load hole 44, forming a loading surface ( 41) is exposed and provided to support the bottom of the workpiece (A).

In addition, an air cleaning module 50 is provided on the sensing rod 45, and the air cleaning module 50 is provided to inject compressed air into the first rod hole 43 and to be opened and closed by a valve. It is formed inside the airline 51 and the sensing rod 45, one end of which is open to the inner end of the sensing rod 45 and communicates with the first rod hole 43, and the other end is the outer end of the sensing rod 45. It includes a spray passage 52 that is open at the bottom and is provided to spray compressed air toward the loading surface 41, and the end of the sensing rod 45 is connected to the first rod hole 43 due to the unclamping operation of the cleaning tank 40. ) When compressed air is injected through the airline 51 in a state exposed to the outside, the compressed air travels through the first rod hole 43 and the injection passage 52 to the outer end of the sensing rod 45. It is output in a downward direction, and when the workpiece (A) is loaded between the cleaning baths (40), the inclined surface (45b) slides with the workpiece (A) and the sensing rod (45) is inside the first rod hole (43). When the loading block 46 is connected to the pinion 47 and is pulled outward from the second load hole 44, the loading surface 41 is compressed by compressed air sprayed through the injection passage 52. It is characterized in that it is provided for air cleaning.

According to the above configuration and operation, the present invention can be safely protected from external contaminants by hiding the loading surface of the loading block when the cleaning tank is in an unclamping operation, and when the cleaning tank is in a clamping operation, the loading surface while the loading block is being pulled out. As it is cleaned by rubbing against this cleaning pad, it has the effect of effectively preventing loading defects in the workpiece caused by foreign substances.

1 is an overall configuration diagram of a clamping device for CNC equipment according to an embodiment of the present invention.
Figure 2 is an enlarged configuration diagram showing the cleaning tank of the clamping device of CNC equipment according to an embodiment of the present invention.
3 to 4 are diagrams showing the clamping and unclamping operating states of the clamping device of CNC equipment according to an embodiment of the present invention.
Figure 5 is a configuration diagram showing the air cleaning module of the clamping device of CNC equipment according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. Also, in describing the present invention, if it is determined that related known functions may unnecessarily obscure the gist of the present invention as they are obvious to those skilled in the art, the detailed description thereof will be omitted.

Figure 1 is an overall configuration diagram showing the clamping device for CNC equipment according to an embodiment of the present invention, and Figure 2 is an enlarged configuration diagram showing the cleaning tank of the clamping device for CNC equipment according to an embodiment of the present invention. Figures 3 and 4 are configuration diagrams showing the clamping and unclamping operating states of the clamping device of CNC equipment according to an embodiment of the present invention, and Figure 5 is a diagram showing the air condition of the clamping device of CNC equipment according to an embodiment of the present invention. This is a configuration diagram showing the cleaning module.

The present invention relates to a clamping device for CNC equipment, which can be safely protected from external contaminants by hiding the loading surface of the loading block when the cleaning tank is in an unclamping operation, and when the cleaning tank is in a clamping operation, the loading block is pulled out. It includes a base (10), a fixed arm (20), a movable arm (30), and a cleaning tank (40) so that the loading surface is cleaned by rubbing against the cleaning pad and effectively prevents loading problems caused by foreign substances. It consists of the main components.

The base 10 according to the present invention is installed on the table (T) of CNC equipment, and a guide rail 11 is provided on the upper surface.

The base 10 is provided to be bolted to the table T, and a fixed arm 20, a movable arm 30, and a cleaning tank 40, which will be described later, are installed on the top.

In addition, the fixing arm 20 according to the present invention is installed at one end of the base 10, and an 'L' shaped first reference surface 21 is formed.

The fixing arm 20 is a component that supports the cleaning tank 40, which will be described later, and is formed integrally with the end of the base 10, or is formed separately and installed in a prefabricated manner.

In addition, the fixed arm 20 is provided with an 'ㄴ' shaped first reference surface 21 formed on one side corresponding to the movable arm 30, which will be described later, to support the bottom and side surface of the cleaning tank 40.

In addition, the movable arm 30 according to the present invention is installed opposite the fixed arm 20, is transported linearly along the guide rail 11 by a driving means, and is positioned at a position corresponding to the first reference surface 21. A 'L' shaped second reference surface 31 is formed.

The movable arm 30 is provided to clamp/unclamp the workpiece (A) while moving laterally along the guide rail 11. At this time, the movable arm 30 is controlled by a driving means to move in a straight line. do.

At this time, the driving means consists of a screw rod rotated by a lever, a screw rod rotated by a motor, or an oil or pneumatic cylinder.

In addition, the movable arm 30 is provided with an 'ㄴ' shaped second reference surface 31 formed on one side corresponding to the fixed arm 20 to support the bottom and side surface of the cleaning tank 40.

In addition, the cleaning tank 40 according to the present invention is detachably mounted on the first and second reference surfaces 21 and 31 to provide a loading surface 41 on which the workpiece A is seated, and In conjunction with the loading/unclamping operation of A), it is provided to clean the loading surface 41.

In FIG. 2, the cleaning tank 40 includes a crude body 42 in which a fastening hole 42a is formed to be bolted in a state of engagement with the first and second reference surfaces 21 and 31, and the crude body 42 A first rod hole 43 formed laterally in the upper area, a second rod hole 44 formed laterally below the first rod hole 43, and inserted into the first rod hole 43. , the elastic body (S) exerts a stretching transport force in the outer direction of the first rod hole (43), a first rack (45a) is formed on the bottom, and an inclined surface (45b) is formed on the end of the sensing rod (45). ), and a loading block 46 that is inserted into the second load hole 44, has a first rack 46a formed on the upper surface, and a loading surface 41 for supporting the workpiece A is formed on the upper surface of the end. ), and is rotatably installed between the first and second load holes 43 and 44, and is engaged with the first and second racks 45a and 46a to connect the sensing rod 45 and the loading block 46 to each other. It includes a pinion (47) that transfers straight in the reverse direction.

At this time, the first and second racks 45a and 46a are engaged by one pinion 47 and are configured to move the same distance in opposite directions, or two pinions with different diameters are connected on the same axis. , It is also possible to set each pinion 47 to engage the first and second racks 45a and 46a and move different distances in opposite directions.

Additionally, a cleaning pad 48 is installed on the inner peripheral surface of the first load hole 43 and is in contact with the loading surface 41 to remove foreign substances when the loading block 46 is transported in a straight line.

Here, the cleaning pad 48 is formed of an airtight member including an elastic life, a brush, and packing, and is provided to remove foreign substances while in close contact with the loading surface 41.

Looking at the operating state of the cleaning tank 40, when the cleaning tank 40 operates to unclamp the workpiece A, if the sensing rod 45 is stretched and transferred by the elastic body S as shown in FIG. 3, loading As the block 46 is connected to the pinion 47 and retracted toward the inside of the second load hole 44, the loading surface 41 waits in a hidden state.

And, when the workpiece (A) is loaded between the cleaning tank (40), the inclined surface (45b) slides with the workpiece (A) as shown in FIG. 4, and the sensing rod (45) is inside the first rod hole (43). When the loading block 46 is connected to the pinion 47 and pulled outward from the second load hole 44, the loading surface 41 is exposed to support the bottom of the workpiece A.

In this way, when the cleaning tank 40 is unclamped, the loading block 46 is retracted into the second load hole 44, so that the loading surface 41 is hidden and safely protected from external contaminants, and the cleaning tank ( When 40) is in the clamping operation, the loading block 46 is pulled out of the second load hole 44, and the loading surface 41 is rubbed against the cleaning pad 48, which has the advantage of being cleaned cleanly.

In Figure 5, an air cleaning module 50 is provided on the sensing rod 45.

The air cleaning module 50 injects compressed air into the first rod hole 43 and is formed inside the airline 51 and the sensing rod 45, which are provided to be opened and closed by a valve, and have one end A spray passage that is open to the inner end of the sensing rod (45) and communicates with the first rod hole (43), and the other end is open to the bottom of the outer end of the sensing rod (45) and is provided to spray compressed air toward the loading surface (41). Includes (52).

Looking at the operating state of the air cleaning module 50, the end of the sensing rod 45 is exposed to the outside of the first rod hole 43 due to the unclamping operation of the cleaning tank 40, and the air line 51 When compressed air is injected through ), the compressed air is output downward from the outer end of the sensing rod 45 via the first rod hole 43 and the injection passage 52.

Subsequently, when the workpiece (A) is loaded between the cleaning tank (40), the inclined surface (45b) slides with the workpiece (A) and the sensing rod (45) is inserted into the first rod hole (43), loading During the process of the block 46 being connected to the pinion 47 and pulled outward from the second load hole 44, the loading surface 41 is provided to be air cleaned by compressed air sprayed through the spray passage 52. do.

In this way, the loading surface 41 is air cleaned by the air cleaning module 50 to prevent contamination from foreign substances, including chips, and thus has the advantage of preventing loading defects due to foreign substances during the process of loading the workpiece (A). there is.

As described above, the most preferred embodiments of the present invention have been described in the detailed description of the present invention, but various modifications may be made without departing from the technical scope of the present invention. Therefore, the scope of protection of the present invention should not be limited to the above embodiments, but should be recognized to the technologies in the patent claims described later and to equivalent technical means from these technologies.

10: Base 20: Fixed arm
30: Movable arm 40: Cleaning tank
50: Air cleaning module

Claims (5)

A base (10) installed on the table (T) of the CNC equipment and equipped with a guide rail (11) on the upper surface; A fixing arm (20) installed at one end of the base (10) and forming an 'ㄴ'-shaped first reference surface (21); It is installed opposite the fixing arm 20, is transported linearly along the guide rail 11 by a driving means, and an L-shaped second reference surface 31 is formed at a position corresponding to the first reference surface 21. movable arm (30); and a loading surface 41 that is detachably mounted on the first and second reference surfaces 21 and 31 and on which the workpiece A is seated, and is linked to the loading/unclamping operation of the workpiece A. , a cleaning tank 40 provided to clean the loading surface 41,
The cleaning tank 40 includes a crude body 42 in which a fastening hole 42a is formed to be bolted while engaged with the first and second reference surfaces 21 and 31, and an upper region of the crude body 42. A first rod hole 43 formed in the transverse direction, a second rod hole 44 formed laterally in the lower part of the first rod hole 43, and an elastic body ( A sensing rod 45 in which a stretching transport force acts in the outer direction of the first rod hole 43 by S), a first rack 45a is formed on the bottom, and an inclined surface 45b is formed at the end, and 2 A loading block 46 that is inserted into the load hole 44, has a first rack 46a formed on the upper surface, and a loading surface 41 for supporting the workpiece A is formed on the upper surface of the end, It is rotatably installed between the 1st and 2nd rod holes (43) and (44), and engages the first and second racks (45a) (46a) to move the sensing rod (45) and the loading block (46) in a straight line in the opposite direction. A clamping device for CNC equipment, characterized in that it includes a pinion (47).
delete According to clause 1,
A cleaning pad (48) is installed on the inner peripheral surface of the first load hole (43) and is provided with a cleaning pad (48) that contacts the loading surface (41) to remove foreign substances when the loading block (46) is transported in a straight line. Clamping device.
According to claim 1 or 3,
When the cleaning tank 40 operates to unclamp the workpiece (A), when the sensing rod 45 is stretched and transferred by the elastic body (S), the loading block 46 is linked to the pinion 47 and moves to the second rod. As it enters the hole 44, the loading surface 41 waits in a hidden state,
When the workpiece (A) is loaded between the cleaning tank (40), the inclined surface (45b) slides with the workpiece (A) and the sensing rod (45) is drawn into the first rod hole (43), the loading block (46) is connected to the pinion (47) and is pulled outward from the second load hole (44), exposing the loading surface (41) to support the bottom of the workpiece (A). Clamping device.
According to claim 1 or 3,
An air cleaning module 50 is provided on the sensing rod 45,
The air cleaning module 50,
An airline 51 that injects compressed air into the first rod hole 43 and is opened and closed by a valve,
It is formed inside the sensing rod 45, one end is open to the inner end of the sensing rod 45 and communicates with the first rod hole 43, and the other end is open to the bottom of the outer end of the sensing rod 45 to form a loading surface ( 41) and includes a spray passage 52 provided to spray compressed air toward the side,
When compressed air is injected through the airline 51 with the end of the sensing rod 45 exposed to the outside of the first rod hole 43 due to the unclamping operation of the cleaning tank 40, the compressed air is 1 It is output downward from the outer end of the sensing rod (45) via the rod hole (43) and the injection passage (52),
When the workpiece (A) is loaded between the cleaning tank (40), the inclined surface (45b) slides with the workpiece (A) and the sensing rod (45) is drawn into the first rod hole (43), the loading block During the process in which (46) is linked to the pinion (47) and drawn outward from the second load hole (44), the loading surface (41) is provided to be air cleaned by compressed air sprayed through the spray passage (52). A clamping device for CNC equipment, characterized in that.