KR101826940B1 - Busbar fastening hole punching machining device - Google Patents

Abstract

The present invention relates to a punching apparatus to process a busbar fastening hole, which forms a fastening hole on a busbar, which is applied as a wiring to a variety of power distribution equipment and panel boards to improve punching precision to cut into a unit product′s length and to reduce processing time, thereby increasing productivity. According to the present invention, the punching apparatus to process the busbar fastening hole comprises: an apparatus main frame (200) fixated on the ground surface; a punch assembly (202) mounting a plurality of punches with different standards on the apparatus main frame; a transfer bed (201) to make materials to be processed enter into one side of the punch assembly; and a takeout bed (203) formed on the other side to take out a processed busbar. The apparatus main frame has an inflow unit clamp to contact the longitudinal end of the transfer bed. The takeout bed has a takeout unit clamp to change the processing position by pulling materials to be processed and to allow the punch assembly to process a fastening hole. The inflow unit clamp (300), which clamps the materials to be processed on a side of the transfer bed (201) in case of processing a hole on the materials to be processed, comprises: a first clamp (310) which drives in a Y-axis direction to fixate the materials to be processed; and a second clamp (320) which mounts the first clamp (310) to drive in an X-axis direction to allow the first clamp to further enter towards to the punch assembly (202). The inflow unit clamp (300) is fixated on the apparatus main frame.

Description

Technical Field [0001] The present invention relates to a bus bar fastening hole punching machining device,

More particularly, the present invention relates to a punching apparatus for punching a booth bar for punching a booth bar to be applied to various water distribution and distribution boards and a distribution board, And to improve the productivity by shortening the machining time. 2. Description of the Related Art

As is known, a bus bar made of a copper material, which is rolled and drawn by a high-purity material, is applied to a wiring of a high-voltage water distribution facility, a distribution board, etc., in order to secure a large cross-

The bus bar is excellent in electrical conductivity and bending workability and is free from defects in use and is usually in the form of a plate-like stick having a rectangular cross-section.

The bus bar is completed by bending a necessary fastening hole on the plate in consideration of the case of wiring to connect a specific electric equipment and equipment, the case of branching from the wiring and connecting to another wiring, and the like , And the finished bus bar can be made very diverse depending on the design of the application.

Therefore, the perforation of the fastening hole in the busbar differs for each application and design.

These booth bars have a cross-sectional thickness of 4mm ~ 15mm according to the capacity of the electric facility. It is virtually impossible to bore or bend them arbitrarily at the facility site. The booth bar is manufactured and supplied by bending process through a dedicated press- The machined busbars are used in the field to complete wiring by bolting through holes only.

A machining apparatus for punching a fastening hole into a bus bar as described above is also known in the art.

In general, there is a manual type in which a worker manually sets a jig according to a punching position, and then supplies the booth bar material to the jig and drives the punching machine to drill holes.

However, there is a disadvantage that the position of the jig must be changed according to the specifications such as the position and the number of the punching holes and the length of the bus bar, and the booth having a heavy weight The bar is manually handled, punching is performed, the productivity is extremely low, and if the jig is mispositioned, there is a problem of mass production of defective products, which is a disadvantage of requiring a highly skilled and highly concentrated worker.

An NC punching device by computer numerical control has been developed and known to solve the problems of the manual punching device as described above.

As shown in Fig. 1, the workpiece end portion is fixed by being hooked on the hook 101, and the workpiece is moved in the X axis direction toward the punch assembly 102 to be fed to the position of the punch 103 while numerical control is performed. The front end of the workpiece constituting the take-out clamp 104 to be fixed in the X-axis direction is fixed by the take-out clamp 104. The end of the workpiece is fixed by being hooked and fixed, Is spaced apart from the punch assembly 102 in the Y-axis direction and is configured to perform hole punching by driving in the Z-axis direction.

Here, the take-out clamp 104 is fixed so that one end of the fixed clamp 104a can not move, and the other end of the flow clamp 104b is made up of a pair of clamps that flow in the Y-axis direction, When the workpiece is moved in the X-axis direction, the take-out part clamp 104 is opened and the pushing-and-conveying operation is carried out by the hook 101.

According to this conventional technique, the tip end portion of the workpiece and the punch assembly 102 are spaced apart from each other by a certain distance, and the end portion can not be hole-punched close to the tip and the end of the workpiece due to the fixing position of the hook 101 A high cost of material is wasted.

Of course, in the case where the workpiece is not fixed by the take-off clamp 104 and the hole punching is performed during the machining of the workpiece, the workpiece is insufficiently fixed and the dimension of the punching hole becomes difficult to manage. Consequently, It is inevitable to dispose a part of the distal end of the workpiece, and a part of the distal end fixed to the hook 101 is also inevitably disposable.

As shown in Fig. 2, the conventional NC punching machine has a punch assembly 202 in which a plurality of punches are mounted on an upper portion of the main body, a feeder for feeding the workpiece into one side of the punch assembly, A bed 201 and an extraction bed 203 for extracting processed bus bars from the other side and an inlet clamp 204 (see FIG. And the take-out clamp 205 formed of a pair of the fixed clamp 205a and the flow clamp 205b is formed in the take-out bed 203 and is subjected to a double-acting operation in the X axis direction on the take-out bed.

In this punching processing apparatus, the take-out clamp 205, which is twisted in the X-axis direction in the take-out bed 203, moves to the punch assembly 202 side to clamp the tip of the workpiece to be processed, Since the workpiece is clamped by the workpiece clamping unit 204 to hold and fix the workpiece at the nearest position of the punching process and to perform the hole punching, it is advantageous in that the precise dimension control is performed as compared with the above- Since the clamping and unclamping are performed only by the distribution clamp 204b, the punching holes are formed only at the one end of the take-out part clamp 205 when machining the punching hole at the end of the workpiece. Since the clamping is performed, the workpiece is unstable due to vibration due to vibration, etc., There is a problem that this bad bus bar is produced.

In addition, when machining is performed while supplying a work bar of a work material having a length of about 2000 to 3000 mm, the take-out clamp 205 is moved away from the take- The shaking of the workpiece due to the clamping is further increased due to the spacing, so that the machining defects are caused. In order to prevent such a machining failure, the take-out clamp 205 is loosened to move close to the inflow-side punch assembly 202, In this case, too, the clamp can not be maintained at one position, and the work takes more time to move the clamp, which leads to a problem that productivity is lowered.

As a result, according to the related art, there is a disadvantage in that it is necessary to accomplish disconnection of the workpiece part for machining defects and clamping during the machining of the end part which is the starting part of the workpiece and the end part of the workpiece.

KR 10-1017348 B1 KR 10-1056469 B1 KR 10-1578015 B1

Disclosure of Invention Technical Problem [8] The present invention has been made to solve the above-mentioned problems of the prior art, and it is intended to solve the following problems.

The present invention is characterized in that, even when a hole punching position of a workpiece for a bus bar having a long length is positioned at the tip or end of the workpiece, the workpiece is clamped by supporting the tip end and the rear end accurately, And to provide a punching processing apparatus for a fastening hole for a bus bar.

The present invention is designed to avoid interference with a punch assembly driven in a direction perpendicular to the clamp moving direction, so that the inlet clamp is operated at the tip end of the workpiece and the inlet clamp at the time of machining the middle portion, So that the punch assembly and the punch assembly are driven in an escape manner. Thus, there is no wasted material due to cutting and disposing of the incompletely machined portion after the machining of the end portion, And to provide a punching device for a fastening hole.

Since the front and rear ends of the workpiece are accurately supported by the take-out bed clamp and the feed-bed clamp at the delivery side even if the length of the workpiece is long, the present invention excludes the case of moving the take- So that the machining time of the unit bar bar can be shortened.

According to an aspect of the present invention, there is provided a punching machine including a main body of a machining apparatus, a punch assembly having a plurality of punches having different sizes on the main body, a transfer bed for entering a workpiece into one side of the punch assembly, A blow-out clamp is formed in the main body so as to be in contact with the end of the conveying bed, and a take-out clamp is formed in the take-out bed to change the machining position of the take- An inlet clamp for clamping a workpiece on a conveying bed side during hole machining of a workpiece, comprising: a first clamp in a Y axis direction for fixing a workpiece; The clamp is mounted and the first clamp is driven in the X-axis direction so as to further enter the punch assembly side The second clamping is achieved by fixing to the main body.

The punch machining device for the fastening hole processing of the booth bar is provided so as to eliminate the occurrence of the machining deviation since the two parts support by the take-out part clamp and the inflow part clamp are maintained even when the end part of the workpiece is machined by the further entry of the second clamp .

According to the present invention as described above, even when the hole punching position of the workpiece for the bus bar having a long length is located at the tip or end of the workpiece, the workpiece is clamped by supporting both the tip and the rear end accurately, So that interference with the punch assembly driven in a direction orthogonal to the clamp moving direction can be avoided, and the inlet clamp can be operated in the forward position and the intermediate position during the machining operation, Since the inlet clamp is moved close to the punch assembly only during the material termination process, the punch assembly and the punch assembly are driven and maintained at two positions so that waste material due to cutting and disposing of incapable materials can be eliminated It is economical because it excludes the additional machining time due to cutting disposal. Even if the length of the workpiece is long, even if the length of the workpiece is long, the front and rear ends of the workpiece are accurately supported by the inlet-side clamp on the take-out side and the inlet clamp on the transfer bed. It is possible to shorten the processing time of the unit booth bar and improve the manufacturing efficiency.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a conventional punching processing apparatus for a busbar fastening hole. FIG.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a punching machine,
Fig. 3 is a schematic external configuration view showing a punching processing apparatus for a fastening hole for a bus bar including the present invention. Fig.
4 is an assembled state view showing a take-out portion and an inlet portion clamp according to the present invention.
Fig. 5 is a view showing the structure of an inlet clamp according to an embodiment of the present invention. Fig.
6 is a view showing the constitution of the inlet clamp disassembly of the present invention.
7 is a front view assembled view of the inlet clamp of the present invention.
8 is a perspective view of the inlet clamp working state of the present invention.
Figs. 9 to 12 are step-by-step operating state diagrams briefly showing an operating state of an inlet clamp according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the accompanying drawings.

Please refer to FIGS. 3 to 7 attached hereto.

The present invention relates to a punching machine comprising a main body (200) fixed to a ground, a punch assembly (202) having a plurality of punches different in size on the main body, a conveying bed And the other side is constituted by an extraction bed 203 for extracting the machined busbar. An inlet clamp is formed in the main body so as to contact with the end of the conveying bed, and an extraction clamp is formed in the extraction bed. The punching device for a fastening hole for machining a fastening hole of a boom bar is characterized in that it comprises an inlet clamp 300 for clamping a workpiece on the side of the transfer bed 201 during hole machining A first clamp 310 for driving the workpiece in the Y axis direction and a second clamp 310 for driving the first clamp 310 to move the first clamp to the punch assembly 202 side And a second clamp 320 which is driven in the X-axis direction is fixed to the main body.

The first clamp 310 moves in the Y axis direction toward the stationary clamp 312 on the bottom plate 311 with external power and is paired with the stationary clamp 312 by a fixed clamp 312 fixed on the bottom plate 311 A plurality of side plates 314 are covered with a top plate 315 so as to be spaced apart from the bottom plate 311 and a rail of the LM guide 316 is provided below the top plate 315 And connecting the cylinder S1 to the side plate 314 and fastening the cylinder shaft to the flow clamp 313. The LM block is fixed to the side plate 314 by fastening the LM block to the flow clamp 313.

The second clamp 320 fastens the LM guide 323 on the bottom plate 321 fixed to the main body 200 and couples a plurality of LM mounts 322 to be spaced apart from each other, A cylinder block 325 fixed to a lower portion of the bottom plate 311 of the first clamp 310 by fastening a plurality of blocks 324 to the front end of the rod of the second cylinder S2, Quot; U "block 324 so as to flow in the X-axis direction.

The first clamp 310 is mounted on the second clamp 320 as an LM guide 323.

In the course of describing the present invention, portions identical to those of the prior art are denoted by the same reference numerals.

Hereinafter, the operation of the present invention constituting the technical structure as described above will be described in more detail.

The present invention relates to a punching device for a fastening hole for a bus bar, and it is already known that precision machining by computer numerical control is performed.

A conventional punching processing apparatus for a fastening hole processing hole supports a punch assembly 202 functioning as a press in a main body 200 constituting a ground, and a plurality of punches having different sizes are built in the punch assembly 202, Hole processing is continuously performed.

The workpiece material to be processed is introduced from one side of the punch assembly 202 as described above, and the busbar punched with the fastening holes is taken out to the other side.

On one side and the other side of the punch assembly 202, a bed is formed for introducing and extracting the workpiece, and a clamp for temporarily fixing the workpiece while grasping and processing the workpiece is provided.

The punching device for a fastening hole for a bus bar of the present invention is mainly operated by the improvement of the inlet clamp 300 and obtains a new effect.

8 to 11.

As described above, when a workpiece is introduced for machining a conventional bus bar fastening hole, the workpiece is aligned with the reference pin of the punch assembly 202, the alignment is completed, and the workpiece of the inlet clamp 300 1 clamp 310 (see Fig. 9).

The punch assembly 202 moves in the fixed state, and the punch selected by the computer control moves to a position just above the punching position of the workpiece.

When the punch movement is completed, the take-out clamp 205 comes close to the punch assembly 202 side in the X-axis direction on the take-out bed and grasps the tip of the workpiece.

The workpiece is moved in the X-axis direction by the take-out clamp 205 while the flow clamp 313 of the first clamp 310 is moved in the X- (See Fig. 11), and can be moved while locked or unlocked by the lock operation S1 (see Fig. 11).

When machining continues from the tip of the workpiece to the end of the workpiece, the distance between the final punch hole and the end of the workpiece is only about 20 mm.

At this time, in the second clamp 320 of the present invention, the cylinder block 325 protrudes and drives by operating the second cylinder S2 in the state of releasing the workpiece, and the punch The first clamp 310 is moved further toward the side of the assembly 202 and the first cylinder S1 is driven to lock the first clamp so that the first clamp 310 of the inlet clamp 300 is moved to the punch assembly 202 on the second clamp 320, So that the workpiece is fixed (see Fig. 12).

The drive of the flow clamp 313 and the movement of the first clamp 310 on the second clamp are guided by the LM guides 316 and 323 and the first and second cylinders S1 and S2 are displaced Acting as a driving source.

Therefore, even when the distance between the take-out part clamp 205 and the inlet part clamp 300 is relatively far away, the workpiece is accurately and firmly supported at two places, so that it can be precisely machined without being influenced by external vibration such as punching operation .

According to the prior art, according to the related art, when the end of the workpiece reaches the end of the workpiece, the inlet clamp is prevented from being defective due to the machining of the one-point support state by only the take- On the other hand, since the margin portion is cut and discarded after the punching hole processing in the two-point support state with the margin portion at the end of the workpiece, the burden of the raw materials to be discarded in manufacturing the busbar is eliminated.

In the present invention, in the machining apparatus for machining the punching hole while transferring it between the punch assemblies, the inlet clamp is formed in the X axis direction only during the end machining of the workpiece without affecting the transfer of the punch assembly Normally there is no interference.

300: inlet clamp 310: first clamp
311, 321: bottom plate 312: fixed clamp
313: Flow clamp 314: Side plate
315: top plate 316, 323: LM guide
320: Second clamp 322: LM mount
324: U block 325: cylinder block
S1: first cylinder S2: second cylinder

Claims (4)

A punch assembly 202 in which a plurality of punches having different sizes are mounted on the main body, a conveying bed 201 for entering a workpiece on one side of the punch assembly, And the other side constitutes an extraction bed 203 for extracting processed busbars. An inlet clamp is formed in the body so as to contact the end of the conveying bed. An extraction clamp is formed in the extraction bed, Wherein the punching assembly includes a plurality of punching holes,
An inlet clamp 300 for clamping a workpiece on the conveying bed 201 side during hole machining on the workpiece includes an Y-axis driven first clamp 310 for fixing the workpiece,
And a second clamp 320 which mounts the first clamp 310 and drives the first clamp in the X axis direction so as to further enter the punch assembly 202. The inlet clamp 300 is fixed to the main body And the punching processing device for a fastening hole for a bus bar. The method according to claim 1,
The first clamp 310 moves in the Y axis direction toward the stationary clamp 312 on the bottom plate 311 with external power and is paired with the stationary clamp 312 by a fixed clamp 312 fixed on the bottom plate 311 A plurality of side plates 314 are covered with a top plate 315 so as to be spaced apart from the bottom plate 311 and a rail of the LM guide 316 is provided below the top plate 315 And the cylinder block is coupled to the side plate 314 and the cylinder shaft is fastened to the flow clamp 313 by clamping the LM block to the flow clamp 313, Device. The method according to claim 1,
The second clamp 320 fastens the LM guide 323 on the bottom plate 321 fixed to the main body 200 and couples a plurality of LM mounts 322 to be spaced apart from each other, A cylinder block 325 fixed to a lower portion of the bottom plate 311 of the first clamp 310 by fastening a plurality of blocks 324 to the front end of the rod of the second cylinder S2, Is inserted in the space of the "U" block (324) so as to flow in the X-axis direction. The method according to claim 1,
Wherein the first clamp (310) is mounted on the second clamp (320) as an LM guide (323).

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