KR101783769B1 - Case processing method of analog connection device - Google Patents

Abstract

The present invention discloses a method of processing an analog connecting device case. According to the present invention, there is provided a method of processing an analog connecting device case made of an aluminum alloy material, which is manufactured through a hexagonal flask using a five-axis machining apparatus constituted by a rotatable mount table and a machining tool, A first front / rear surface machining step of fixing the case formed through the first fixing jig to the mounting table of the machining apparatus and then first and / or rearwardly machining the front and rear surfaces of the case, A front / rear surface machining step including a second front / rear surface machining step of precisely machining the front and rear surfaces of the case after the machining step to the dimensions; A quadrangular surface machining step of fixing the case having been subjected to the front / rear surface machining step to the mount table using the second fixing jig, and then machining four circumferential surfaces except for the front / rear surfaces; A fixing hole forming step of fixing the case having passed through the oblique facing step to the seating base through the third fixing jig and then forming the fixing holes in the front and rear side edges; And a precision hole machining step of fixing the case having passed through the joint hole forming step to the seat by using the fourth fixing jig and then finishing the joint hole formed in the case at the same time as the additional joint hole machining, And a burr removing step of removing a burr or the like by processing a joint hole forming portion of the case having been subjected to the machining step, wherein the first fixing jig has an area of a front surface and a rear surface of the case, A first support plate formed with a square structure having a corresponding area, a first support pin engagement groove formed at each corner side, and a center projection formed by machining a first engagement hole at one end or both end ends, A first support pin inserted into the first support pin engagement groove and coupled to the first support pin engagement groove in a protruded state to support the case, When the first pin which is configured to ensure that the zero point of the Z-axis direction of the machining tool set-fixing jig; A first fixing piece having a flat block having a predetermined thickness, one end of which is in contact with an upper end of the first supporting plate and a fixing bolt insertion hole is formed along the longitudinal direction at the center thereof, A fixing bolt which is extended over the first fixing piece and whose lower end is coupled to the seat cushion, and a fixing bolt whose side end face is formed in a right triangle shape and a plurality of locking claws are formed at the hypotenuse, A plurality of clamps constituted by a press block for pressing the first support plate and fixing the first bottom surface fixing jig to the mount table so that a zero point in the Y axis direction of the mounting tool is set; A first reinforcing plate inserted into both side surface spaces of the case fixed to the first lower surface fixing jig and having a plurality of second coupling grooves formed on both sides thereof, one end being threadedly engaged with the second coupling groove of the first reinforcing plate And a second reinforcing plate fixing bolt which is located between the lower edge of the first reinforcing plate and the case rim and contacts the first reinforcing plate with the stress transmitted to the first reinforcing plate, And a second fixing hole through which a fixing bolt fastened to the first fixing hole of the center protrusion is inserted is formed in the reinforcing plate support, A first side reinforcement jig including a block; And a pair of square-column-shaped blocks, which are fixed to the remaining two side-surface side seating blocks on which the first side-surface reinforcing jig is not provided, and which have a pair of first through-holes formed at upper and lower sides at predetermined intervals along the longitudinal direction, A side fixing piece formed to have a length corresponding to a length of a side surface of the case and disposed between the case and the side support block and having an insertion pin coupling hole formed at the center thereof; And a pair of insertion pins inserted into the upper side to serve as reference points of a zero point in the X axis direction of the processing tool and inserted into the lower side to be inserted into the insertion pin fitting holes of the side fixing pieces to fix the side fixing pieces A first side fixing jig; And a control unit.

Description

Technical Field [0001] The present invention relates to a case processing method of an analog connection device,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method of processing a communication equipment case, and more particularly, to a method of processing an analog connection device case that processes each side of an analog connection device having a hexahedron structure formed of an aluminum alloy material by a processing device.

At present, devices used for military equipment are made of aluminum alloy material, which is strong in durability due to the special nature of military use. In particular, communication devices such as analog connection devices are also made of box-shaped case made of metal material.

At this time, the metal material used in the case is made of aluminum alloy, and it is specified as [KS D 6008 AC4C-T6], and the material having aluminum (Al) is applied to the material having iron (Fe) of 0.40% or less.

The case made of such an aluminum alloy is manufactured by pouring an aluminum alloy casting into a die having a case shape as described above. The case recovered from the die has a rough surface and is not elaborate. Therefore, a process of machining all the faces (six faces) according to the standard is required for the cases recovered from the form.

Such case of aluminum alloy material is processed by 5-axis machining machine such as CNC (Computer Numerical Control) or Machining Center. In case of machining, There is a problem that the case can not be precisely processed due to movement or shaking of the case during the processing step by the processing machine.

In addition, since the above-mentioned processing machine is electronically controlled by a computer, it is necessary to precisely set the zero point of the processing tool so that the workpiece can be precisely machined. In this case, It takes a very long time to set the zero point, so that the working efficiency is not good and the zero point can not be precisely set.

In addition, since the rims and the like of the six surfaces are formed in a thin structure in the structure of the case, there is a problem in that it is damaged by the stress transferred by the processing tool during the processing.

Therefore, at the time of processing a case made of an aluminum alloy material. It is required to precisely control the zero point of the processing tool and to provide a processing method for preventing the case from being damaged during the processing.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a method of manufacturing a case of an analog connection device made of an aluminum alloy material, And to provide a processing method of an analog connecting device case in which breakage of the case in a processing process can be prevented.

According to the present invention, there is provided a method of processing a case of an analog connection device formed of an aluminum alloy material, which is manufactured through a hexagonal flask using a five-axis machining apparatus constituted of a rotatable mount table and a machining tool, A first pre- / rear-surface machining step of fixing the case made through the first fixing jig to the mounting table of the machining apparatus, and then first and / or rearwardly machining the front / rear surfaces of the case; A front / rear face machining step including a second front / rear face machining step of precisely machining the front / rear face of the case after the back face machining step to the dimensions; A quadrangular surface machining step of fixing the case having been subjected to the front / rear surface machining step to the mount table using the second fixing jig, and then machining four circumferential surfaces except for the front / rear surfaces; A fixing hole forming step of fixing the case having passed through the oblique facing step to the seating base through the third fixing jig and then forming the fixing holes in the front and rear side edges; And a precision hole machining step of fixing the case having passed through the joint hole forming step to the seat by using the fourth fixing jig and then finishing the joint hole formed in the case at the same time as the additional joint hole machining, And a burr removing step of removing a burr or the like by processing a joint hole forming portion of the case having been subjected to the machining step, wherein the first fixing jig has an area of a front surface and a rear surface of the case, A first support plate formed with a square structure having a corresponding area, a first support pin engagement groove formed at each corner side, and a center projection formed by machining a first engagement hole at one end or both end ends, A first support pin inserted into the first support pin engagement groove and coupled to the first support pin engagement groove in a protruded state to support the case, When the first pin which is configured to ensure that the zero point of the Z-axis direction of the machining tool set-fixing jig; A first fixing piece having a flat block having a predetermined thickness, one end of which is in contact with an upper end of the first supporting plate and a fixing bolt insertion hole is formed along the longitudinal direction at the center thereof, A fixing bolt which is extended over the first fixing piece and whose lower end is coupled to the seat cushion, and a fixing bolt whose side end face is formed in a right triangle shape and a plurality of locking claws are formed at the hypotenuse, A plurality of clamps constituted by a press block for pressing the first support plate and fixing the first bottom surface fixing jig to the mount table so that a zero point in the Y axis direction of the mounting tool is set; A first reinforcing plate inserted into both side surface spaces of the case fixed to the first lower surface fixing jig and having a plurality of second coupling grooves formed on both sides thereof, one end being threadedly engaged with the second coupling groove of the first reinforcing plate And a second reinforcing plate fixing bolt which is located between the lower edge of the first reinforcing plate and the case rim and contacts the first reinforcing plate with the stress transmitted to the first reinforcing plate, And a second fixing hole through which a fixing bolt fastened to the first fixing hole of the center protrusion is inserted is formed in the reinforcing plate support, A first side reinforcement jig including a block; And a pair of square-column-shaped blocks, which are fixed to the remaining two side-surface side seating blocks on which the first side-surface reinforcing jig is not provided, and which have a pair of first through-holes formed at upper and lower sides at predetermined intervals along the longitudinal direction, A side fixing piece formed to have a length corresponding to a length of a side surface of the case and disposed between the case and the side support block and having an insertion pin coupling hole formed at the center thereof; And a pair of insertion pins inserted into the upper side to serve as reference points of a zero point in the X axis direction of the processing tool and inserted into the lower side to be inserted into the insertion pin fitting holes of the side fixing pieces to fix the side fixing pieces A first side fixing jig; The method of processing an analog connecting device case can be provided.

According to the present invention, by fixing the case of the analog connection device made of an aluminum alloy material to the seat of the processing machine through the first to fourth fixing jigs, the zero point of the processing tool of the processing machine is precisely set The zero point can be precisely set through the fixed jig portion of the processing tool at the step, and the machining precision can be improved.

Further, by supporting the point where the breakage of the case can be prevented in the processing process through the processing machine with the reinforcing jig, breakage of the case in the processing can be prevented.

1 is a perspective view showing an analog connecting device case formed of an aluminum alloy material applied to the present invention.
2 is a process diagram for explaining a case processing method of an analog connecting apparatus according to the present invention.
FIG. 3 is an exploded perspective view showing a first fixing jig for fixing the case in the front / rear surface step of the present invention.
FIG. 4 is a perspective view showing a state where the case is fixed to the seat by the first fixing jig of FIG. 3. FIG.
FIG. 5 is an exploded perspective view showing a second fixing jig for fixing the case in the obliquely facing surface step in the present invention.
FIG. 6 is a perspective view showing a state where the case is fixed to the seat by the second fixing jig of FIG. 5;
7 is an exploded perspective view showing a third fixing jig for fixing the case in the step of forming a fastening hole in the present invention.
FIG. 8 is a perspective view showing a state where the case is fixed to the seat by the third fixing jig of FIG. 7. FIG.
FIG. 9 is an exploded perspective view showing a fourth fixing jig for fixing the case in the post-processing step according to the present invention.
10 is a perspective view showing a state where the case is fixed to the seat by the first fixing jig of FIG.

Hereinafter, a processing method of the case of the analog interface device according to the present invention will be described in detail with reference to the embodiments shown in the drawings.

1 is a perspective view showing an analog connecting device case 10 formed of an aluminum alloy material applied to the present invention. 2 is a process diagram for explaining a case processing method of an analog connecting apparatus according to the present invention. 3 is an exploded perspective view showing a first fixing jig 1000 for fixing the case 10 in a front / rear surface step in the present invention. 4 is a perspective view showing a state in which the case 10 is fixed to the seat cushion 1 by the first fixing jig part 1000 of Fig.

1 to 4, a method of processing an analog connection device case according to an embodiment of the present invention is a method of processing a case 10 of an analog connection device made of an aluminum alloy material and having six surfaces, A backside machining step S10, a trapezoidal machining step S20, a joint hole forming step S30, and a post-machining step S40.

The front / rear surface machining step S10 is a step of machining the front and rear surfaces of the six surfaces of the case. The case 10, which is manufactured through a flask, is fixed to a mounting table of a processing machine. The front and rear surfaces of the case subjected to the primary front / rear surface machining (S11) and the primary front / rear surface machining (S11) are subjected to a second front / rear surface finish Step S12.

In this front / rear surface machining step S10, the first fixing jig 1000 is used to fix the front side or back side of the case 10 to the mounting table 1 of the processing machine while the case 10 is laid flat The first fixing jig 1000 includes a first undersurface fixing jig 1100 and a clamp 1200 and a first side reinforcing jig 1300 and a first side fixing jig 1400 .

The first undersurface fixing jig 1100 is fixed to the mounting table 1 of the processing machine to support and fix the front or rear surface of the case 10 and to set the zero point of the Z axis in the vertical direction of the processing tool And includes a first support plate 1110 and a first support pin 1120.

The first support plate 1110 is formed in a rectangular structure having an area corresponding to the area of the front surface and the rear surface of the case 10 and has a first support pin 1120 at which the first support pin 1120 can be inserted A groove 1111 is formed. A center protrusion 1112 connected to the first side reinforcing jig 1300 is formed at one end or both ends of the middle end, and a first coupling hole 1113 is formed in the center protrusion.

The first support pin 1120 is inserted into the first support pin engagement groove 1111 formed in the first support plate 1110 and is partly protruded from the first support pin 1120. The first support pin 1120 is fixed to the first support pin engagement groove 1111, The upper end of the first support pin 1120 is formed into a conical shape in order to support the case 10 in contact with the case 10 and minimize the contact area with the case 10.

A plurality of clamps 1200 are provided to fix the first support plate 1110 to the mounting table 1 of the processing machine and to fix the first support plate 1110 using the clamp 1200, And includes a first fixing piece 1210, a fixing bolt 1220, and a pressing block 1230. The first fixing piece 1210, the fixing bolt 1220,

The first fixing piece 1210 is a flat block having a predetermined thickness, one end of which is in contact with the upper end of the first supporting plate 1110, and a fixing bolt insertion hole 1211 is formed at the center along the longitudinal direction.

The fixing bolt 1220 is inserted into the fixing bolt insertion hole 1211 of the first fixing piece 1210 so that the upper end thereof extends over the first fixing piece 1210 and the lower end thereof is coupled to the seat base 1.

The pressing block 1230 is fitted to the lower end of the other end of the first fixing piece 1210 so that one end of the first fixing piece 1210 presses the first supporting plate 1110, And a plurality of engagement protrusions 1231 are formed at the hypotenuse. When the pressing block 1230 is coupled to the first fixing piece 1210, the other end side of the first fixing piece 1210 rises along the hypotenuse of the pressing block 1230, One end of the first fixing piece 1210 presses the first supporting plate 1110 and the other end of the first fixing piece 1210 is fixed by the engaging step 1231. [ In addition, the fixing bolt 1220 is tightened so that the first fixing piece 1210 and the pressing block 1230 are firmly fixed.

The first side reinforcing jig 1300 prevents the side surface of the case 10 from being broken at the time of processing by the processing tool in a state where the front surface or the rear surface of the case 10 is fixed to the first bottom surface fixing jig 1100 And may include a first gusset plate 1310 and a stiffener plate support block 1320.

The first reinforcing plate 1310 is inserted into the side space of the case 10 fixed to the first bottom surface fixing jig 1100 to reinforce the lateral strength of the case 10, And a plurality of second engagement holes 1311 are formed on both sides. A reinforcing plate fixing bolt 1312 is screwed to the plurality of second coupling holes 1311.

The reinforcing plate fixing bolt 1312 fixes the first reinforcing plate 1310 to the side surface of the case 10 and specifically concludes that the reinforcing plate fixing bolt 1312 is engaged with the second fitting hole 1311 The first reinforcing plate 1310 is positioned on the inner side of the side surface of the case 10 and then the reinforcing plate fixing bolt 1312 is rotated so that the head of the reinforcing plate fixing bolt 1312 is positioned on the inner surface of the case rim 11 So that the first reinforcing plate 1310 is fixed.

The reinforcing plate supporting block 1320 is disposed between the lower side of the first reinforcing plate 1310 and the case frame 11 to transmit the stress in the vertical direction transmitted to the first reinforcing plate 1310 to the first supporting plate 1110 Specifically, when a force is applied in the vertical direction to the front side frame in a state where the front / rear side frame 11 is positioned on the upper / lower side with the first reinforcing plate 1310 interposed therebetween, And can be transmitted through the reinforcing plate 1310 to the rear side edge. The reinforcing plate supporting block 1320 is positioned between the first reinforcing plate 1310 and the rear side frame so that the stress transmitted from the front side frame to the first reinforcing plate 1310 is transmitted through the reinforcing plate supporting block 1320 And transfers it to the first support plate 1110. [ The reinforcing plate supporting block 1320 is formed with a first fixing hole 1321 formed at the end side and a second fixing hole 1322 formed at a predetermined distance from the first fixing hole 1321 A supporting bolt 1323 for supporting an end of the reinforcing plate supporting block 1320 is fixed to the first fixing hole 1321 by being in contact with the center protrusion 1112 of the first supporting plate 1110, A fixing bolt 1324 which is coupled with the first coupling hole 1113 of the first supporting plate 1110 and fixes the reinforcing plate supporting block 1320 is coupled.

The first side fixing jig 1400 is formed on the other side where the first side reinforcing jig 1300 is not installed in a state where the front surface or the rear surface of the case 10 is fixed to the first bottom surface fixing jig 1110, 10, and a zero point in the X-axis direction of the machining tool is set, and includes a side support block 1410, an insertion pin 1420, and a side fixing piece 1430 .

The side support block 1410 is formed as a square column block and is fixed to the mounting table 1 of the processing machine and has a pair of first through holes 1411 on the upper and lower sides at predetermined intervals along the longitudinal direction .

The insertion pins 1420 are inserted into the first through holes 1411 of the side support block 1410 to constitute a pair. At this time, the insertion pin 1420 inserted into the upper first through hole 1411a serves as a kind of reference point for setting the X axis zero point of the processing tool. On the other hand, the insertion pin 1420 inserted into the lower side first through hole 1411b has one end inserted into the side fixing piece 1430 to fix the side fixing piece 1430.

The side fixing piece 1430 is a flat plate formed to have a length corresponding to the length of the side surface of the case 10 and a center lower insertion pin 1411b of the insertion pin inserted into the first through hole 1411 is inserted The insertion hole 1431 is formed. At this time, the insertion pin coupling hole 1431 and the insertion pin 1420 are coupled to each other by simple fitting. The side fixation piece 1430 is spaced apart from the side surface of the case 10 in a state where the insertion pin 1420 that primarily sets the X-axis zero point is engaged with the side support block 1410 and protruded The side support block 1430 supports the side surface of the case 10 so as not to move in the lateral direction of the case 10, thereby facilitating lateral support of the case 10 through the side support block 1430.

5 is an exploded perspective view showing a second fixing jig part 2000 for fixing the case 10 during the oblique facing step according to the present invention. 6 is a perspective view showing a state in which the case 10 is fixed to the seat cushion 1 by the second fixing jig part 2000 of Fig.

5 and 6, the oblique facing step S20 is a step of machining four circumferential surfaces except the front / rear surface of the case 10 after the front / rear surface step S10, The front or rear surface of the case 10 is fixed to the upper side by using the second fixing jig part 2000 which is different from the first fixing jig part 1000 in which the case 10 is fixed, The processing is performed by a processing machine.

At this time, the second fixing jig 2000 includes a second bottom fixing jig 2100, an X-axis zero point jig 2200, and a second side reinforcing jig 2300.

The second undersurface fixing jig 2100 is fixed to the mounting table 1 of the processing machine to support and fix the front or rear surface of the case 10 and to set the zero point of the Z and Y axes in the vertical direction of the processing tool And includes a second support plate 2110, a second support pin 2120, and a second fixing piece 2130.

The second support plate 2110 is formed in a square structure larger than the area of the front and rear surfaces of the case 10 and has a plurality of bolt coupling holes A plurality of second support pin engagement grooves 2112 and a plurality of second support pin engagement grooves 2112 and a fixing bolt 2131 to which the second support pins 2120 can be coupled, A fixing piece coupling groove 2113 is formed.

The second support pin 2120 is inserted into the second support pin engagement groove 2112 formed in the second support plate 2110 and is partly protruded from the second support pin 2120. The second support pin 2120 is protruded from the second support pin insertion groove 2112, 2121 are formed. The second support pin 2120 is inserted into the second support pin engagement groove 2112 on the lower side of the protrusion 2121 and inserted into the second fixture 2130 on the upper side of the protrusion 2121.

The second fixing piece 2130 is a fixing member for fixing the case 10 to the second supporting plate 2110 and includes a fixing bolt insertion hole 2132 through which the fixing bolt 2131 can be inserted in the longitudinal direction, A support pin engagement hole 2133 into which the second support pin 2120 can be inserted is formed on the extension line of the fixing bolt insertion hole 2132. [

The X-axis zero point jig 2200 is disposed on the second support plate 2110 between the second fixing pieces 2130 to set the X-axis zero point of the processing tool. After the X-axis zero point of the processing tool is set, (2110). A zero-point hole 2210 is formed in the X-axis zero point jig 2200.

The second side reinforcing jig 2300 is provided to prevent the side surface of the case 10 from being broken. The second side reinforcing jig 2300 includes the same second reinforcing plate 2310 as the first reinforcing plate 1310 constituting the first side reinforcing jig 1300 ). At this time, since the second side reinforcing jig 2300 is not pressed in the vertical direction as compared with the first side reinforcing jig 1300, the same structure as the reinforcing plate supporting block 1320 is not formed.

7 is an exploded perspective view showing a third fixing jig part 3000 for fixing the case 10 in the step of forming a fastening hole in the present invention. 8 is a perspective view showing a state in which the case 10 is fixed to the seat cushion 1 by the third fixing jig part 3000 of Fig.

7 and 8, the fastening hole forming step S30 is performed by fastening the front / rear side rim 11 to the case 10, which has undergone the warping step S20, Unlike the previous step, it is unnecessary to set the zero point of the X and Y axes and the case 10 is laid down so that the front surface or the rear surface is improved on the seating table 1 of the processing machine A third fixing jig part 3000 is used. The third bottom surface fixing jig 3000 may include a third bottom surface fixing jig 3100, a third fixing piece 3200, and a fixing member fixing bolt 3300.

The third undersurface fixing jig 3100 is fixed to the mounting table 1 of the processing machine and fixes the front surface or the rear surface of the case 10 and is composed of a third supporting plate 3110 and a third supporting pin 3120 do.

The third support plate 3110 is formed in a rectangular structure having an area corresponding to or slightly smaller than the area of the front surface and the rear surface of the case 10 and a pair of third support pins 3120 A third support pin engagement groove 3111 is formed. In addition, a plurality of fixing bolt insertion grooves 3112, which can be fastened by screwing, are formed at a predetermined interval on the center side.

The third support pins 3120 are respectively coupled to the third support pin engagement grooves 3111 and the fastening holes 12 formed in the rim of the case 10 so that the case 10 can be coupled to the third support plate 3110 To be fixed primarily.

A plurality of third fixing pieces 3200 are configured to fix the case 10 in a secondary position and are arranged so as not to overlap with the positions of the fastening holes 12 to be formed in the case frame 11. At the center of the third fixing piece 3200, a fixing bolt insertion hole 3210 through which the fixing piece fixing bolt 3300 can be inserted is formed.

The fixing bolt 330 presses the third fixing piece 3200 to fix the case 10 to the third bottom surface fixing jig 3100. The upper side is coupled to the third fixing piece 3200, And the lower end side is screwed into the fixing bolt insertion groove 3112. [

9 is an exploded perspective view showing a fourth fixing jig 4000 for fixing the case 10 in the post-processing step according to the present invention. 10 is a perspective view showing a state in which the case 10 is fixed to the seat cushion 1 by the fourth fixing jig 4000 of Fig.

9 and 10, the post-processing step S40 is performed by forming the fastening holes 12 in the case 10 through the fastening hole forming step S30 and then using the fourth fastening jig 4000 More precise hole processing and finishing processing can be performed in a fixed state, and it can include a precision hole processing step S41 and a burr removing step S42.

The precision hole forming step S41 includes a further processing operation of the fastening holes 12 in the fastening hole forming step S30 and a process of precisely machining the processed fastening holes 12. More specifically, in consideration of the problem that deformation or breakage may occur due to weakening of the front and rear circumferential sides where the fastening holes 12 are machined, if the fastening holes 12 are machined more than once, The first fixing jig 4000 is partially processed in the forming step S30 and then the additional fixing jig 4000 is further processed in a state in which the fixing hole forming portion is reinforced so that the formation of the fixing hole 12 is more precise So that damage to the case 10, which may occur during the process of forming the fastening hole 12, can be prevented.

The burr removing step S42 is a finishing step of removing the burrs and the like by processing the portion where the fastening hole 12 is formed in a state where the case 10 is fixed through the fourth fixing jig 4000.

The fourth fixing jig 4000 used in the post-processing step S40 includes the fourth side fixing jig 4100, the third side reinforcing jig 4200, and the fourth fixing piece 4300 .

The fourth undersurface fixing jig 4100 is fixed to the mounting table 1 of the processing machine and fixes the front surface or rear surface of the case 10 to the fourth supporting plate 4110 and the fourth supporting pin 4120 .

 The fourth support plate 4110 may be formed in a rectangular structure having an area corresponding to or slightly smaller than the area of the front surface and the rear surface of the case 10 and the fourth support pin 4120 may be inserted in the vicinity of both ends of the front / A pair of fourth support pin engagement grooves 4111 are formed. A case insertion slot 4112 into which the rim 11 of the case 10 can be inserted is formed on the left and right sides of the position corresponding to the width of the case 10, There is formed a reinforcing jig insertion groove 4112 into which the third side reinforcing jig 4200 coupled to the side of the case 10 can be inserted. A plurality of fixing piece insertion holes 4114 are formed on the outer side of the case insertion groove 4112, to which the fourth fixing piece 4300 can be fixed.

The fourth support pins 4120 are respectively coupled to the fourth support pin engagement grooves 4111 and the fastening holes 12 formed in the rim 11 of the case 10 so that the case 10 is supported by the fourth support plate 4110).

The third side reinforcing jig 4200 is bolted to both side surfaces of the case 10 so that one surface 4210 is formed to be inserted into the inner surface of the case 10, Is a square block having a lateral width of the case 10 and a peripheral edge extending to the side of the case and is formed in the vicinity of the edge of the other surface 4220 in correspondence with the fastening hole 12 machined on the peripheral surface of the case 10 A bolt coupling hole 4221 is formed. The third side reinforcing jig 4200 is coupled to the side surface of the case 10 and fixed to the fastening hole 12 of the case 10 by bolts through a bolt coupling hole 4221.

A plurality of fourth fixing pieces 4300 are provided to fix the case 10 to the secondary side and are disposed on both sides of the case 10 to which the third side reinforcing jig 4200 is coupled, And is arranged so as not to overlap with the reinforcing jig 4200. The fourth fixing piece 4300 includes a fixing bolt insertion hole 4320 through which a fixing bolt 4310 having one end connected to the fixing bolt insertion hole 4114 formed in the fourth supporting plate 4110 can be inserted therethrough, And a pressing bolt insertion hole 4340 to which the pressing bolt 4330 is coupled is formed at the rear end side, which is in line with the fixing bolt insertion hole 4320. The pressing bolt 4330 has the same function as the pressing block 1230 constituting the clamp 1200 of the first fixing jig 1000. When the pressing bolt 4330 is tightened, The distal end of the fourth fixing piece 4300 is lifted and the tip of the fourth fixing piece 4300 is lowered by the switching point of the fixing bolt 4310 to press the case 10, 10 can be pressed and fixed to the fourth support plate 4110.

On the other hand, the case 10 having been subjected to the front / rear surface machining step S10, the oblique facing surface machining step S20, the joint hole forming step S30, and the post-machining step S40 is in a state in which the overall contour machining is completed , And then a final inspection step (S50) of thoroughly inspecting the appearance, dimensions, and the like is additionally performed to finally complete the processing of the case (10).

As described above, according to the case processing method of the analog connection apparatus according to the present invention, the case is fixed through the first to fourth fixing jigs 1000 to 4000 and the zero point of the processing tool of the processing machine is precisely set The three-way zero point of the processing tool can be set precisely, and the machining accuracy of the case can be improved.

In addition, since the point where the case can be prevented from being damaged during the machining process through the processing machine is supported by the reinforcing jig, the case can be prevented from being damaged during the machining process.

The case processing method of the analog connection device described above and shown in the drawings is only one embodiment for carrying out the present invention and should not be construed as limiting the technical idea of the present invention. The scope of protection of the present invention is defined only by the matters set forth in the following claims, and the embodiments improved and changed without departing from the gist of the present invention are obvious to those having ordinary skill in the art to which the present invention belongs It will be understood that the invention is not limited thereto.

1: Machining device seat
10: Analog connection device case
11: case rim 12: fastening hole
1000: a first fixing jig
1100: first fixing jig 1200: clamp
1300: first side reinforcing jig 1400: first side fixing jig
2000: second fixing jig
2100: second fixing jig 2200: X-axis zero point jig
2300: Second side reinforcing jig
3000: a third fixing jig part
3100: third fixing jig 3200: third fixing piece
3300: Fixing bolt fixing bolt
4000: fourth fixing jig
4100: fourth surface fixing jig 4200: third side reinforcing jig
4300: fourth fixing piece

Claims (5)

A method of processing an analog connecting device case (10) made of an aluminum alloy material, which is manufactured through a rotatable seat (1) and a five-axis machining apparatus constituted by a machining tool,
The case 10 manufactured through the flask is fixed to the mounting table 1 of the processing apparatus using the first fixing jig 1000 and then the front and rear surfaces of the case 10 are first And the front and rear surfaces of the case 10 that have undergone the primary front / rear surface step S11 are subjected to a secondary front / rear surface finish (S11) A front / rear surface machining step S10 including step S12;
After the case 10 having been subjected to the front / rear surface finishing step S10 is fixed to the mounting table 1 using the second fixing jig 2000, the four peripheral surfaces except for the front and rear surfaces are ground (S20);
After the case 10 having been subjected to the thread cutting step S20 is fixed to the mounting table 1 through the third fixing jig 3000, the front and rear side edges 11 are fastened with fastening holes 12 (S30); And
The case 10 having been subjected to the tightening hole forming step S30 is fixed to the seat cushion 1 using the fourth fixing jig 4000 and then the case 10 is further subjected to the machining of the fastening hole 12 A precision hole machining step S41 for precisely machining the operated fastening hole 12 and a machining part for the fastening hole 12 of the case 10 through the precision hole machining step S41, And a deburring step (S40) including a burr removing step (S42)
The first fixing jig part (1000)
A first support pin engagement groove 1111 is formed at each corner side, and a first support pin engagement groove 1111 is formed at an intermediate point between the first and second support pin engagement grooves 1111, A first support plate 1110 in which a center protrusion 1112 formed with a coupling hole 1113 is formed and a second support pin 1110 inserted into the first support pin coupling groove 1111 so as to be protruded, And a first support pin (1120) formed in a conical shape at an upper end portion contacting with the case (10), so that a zero point in the Z axis direction of the processing tool is set;
A first fixing piece 1210 having a flat block having a predetermined thickness and one end of which is in contact with an upper end of the first supporting plate 1110 and a fixing bolt insertion hole 1211 is formed along the longitudinal direction at the center, A fixing bolt 1220 inserted into the fixing bolt insertion hole 1211 of the fixing bracket 120 and having an upper end fixed to the first fixing piece 1210 and a lower end connected to the mounting table 1, A plurality of locking tabs 1231 are formed at the hypotenuse and are engaged with the lower end of the first fixing piece 1210 so that one end of the first fixing piece 1210 presses the first supporting plate 1110 A plurality of clamps 1200 configured to fix the first bottom surface fixing jig 1100 to the mounting table 1 so that a zero point in the Y axis direction of the mounting tool is set;
A first reinforcing plate 1310 inserted into both side surface spaces of the case 10 fixed to the first surface lowering fixture 1100 and having a plurality of second coupling grooves 1311 formed on both sides thereof, A plurality of reinforcing plate fixing bolts screwed to the second fitting grooves 1311 of the reinforcing plate 1310 and the other ends of which are brought into contact with the inside of the rim 12 of the case 10 to fix the first reinforcing plate 1310 The first reinforcing plate 1310 is disposed between the lower end of the first reinforcing plate 1310 and the rim 12 of the case 10 to transmit the stress transmitted to the first reinforcing plate 1310 to the first supporting plate 1110, A first fixing hole 1321 into which a support bolt 1323 supported by the center protrusion 1112 of the support plate 1110 is inserted and a fixing bolt 1321 which is fastened to the first coupling hole 1113 of the center protrusion 1112 A first side reinforcing jig 1300 including a reinforcing plate supporting block 1320 having a second fixing hole 1322 through which the first fixing hole 1322 is inserted; And
A rectangular block is fixed to the remaining two side seating tables 1 on which the first side reinforcing jig 1300 is not provided and has a pair of first through holes The side support block 1410 is formed with a length corresponding to the length of the side surface of the case 10 and is disposed between the case 10 and the side support block 1410, A side fixing piece 1430 in which a hole 1431 is formed and a lower fixing hole 1430 which is inserted into an upper portion of the first through hole 1411 of the side support block 1410 to serve as a reference point of a zero point in the X- And a pair of insertion pins 1420 that are inserted into the lower side and inserted into the insertion pin engagement holes 1431 of the side fixing pieces 1430 to fix the side fixing pieces 1430. [ (1400);
And a step of mounting the case to the case. The method according to claim 1,
The second fixing jig part (2000)
A plurality of bolt coupling holes 2111 formed in a quadrangular structure having an area larger than the area of the front and rear surfaces of the case 10 and capable of being fixed to the mounting table 1 through the bolts B in the vicinity of the rim, A second support plate 2110 having a plurality of second support pin engagement grooves 2112 and a plurality of fixed piece engagement grooves 2113 formed at both ends of the first support pin engagement hole 2112 A second support pin 2120 having a protrusion 2121 having an increased diameter at an intermediate point in the longitudinal direction is formed and a fixing bolt insertion hole 2132 is formed along the length direction in a rectangular block structure, A support pin engagement hole 2133 to which the upper end of the second support pin 2120 is coupled with the insertion hole 2132 is formed to be coupled to the fixed piece engagement groove 2113 of the second support plate 2110 A plurality of second fixing pieces 2130 for pressing and fixing the case 10 by the fixing bolts 2131, A second bottom surface fixing jig 2100 configured to include a first bottom surface fixing jig 2100;
A zero point hole 2210 is formed in the second support plate 2110 between the second fixing pieces 2130 in a processed rectangular block structure and then the zero point of the X axis of the processing tool is set, Axis zero point jig 2200 to be removed; And
A second reinforcing plate 2310 identical to the first reinforcing plate 1310 and the reinforcing plate fixing bolt 1312 of the first side reinforcing jig 1300 and a second side reinforcing jig 2300 formed of a fixing bolt;
And a step of mounting the case to the case. The method according to claim 1,
The third fixing jig part (3000)
A pair of third support pin engagement grooves 3111 formed in a rectangular shape having an area corresponding to or slightly smaller than the area of the front surface and the rear surface of the case 10 and formed in the vicinity of the rim are formed, A third bottom fixing jig 3100 including a third support plate 3110 having insertion grooves 3112 formed at regular intervals and a third support pin 3120 coupled to the third support pin engagement groove 3111, ;
A plurality of bolts are arranged on the upper surface of the case 10 placed on the third underside fixing jig 3100 so as not to overlap with the positions of the fastening holes 12 to be formed in the case rim 11, A third fixing piece 3200 on which the first fixing piece 3200 is formed; And
A plurality of fixing bolts 3300 inserted into the fixing bolt insertion holes 3210 of the third fixing piece 3200 and having an upper end coupled to the nut 3310 and a lower end connected to the fixing bolt insertion groove 3112, ;
And a step of mounting the case to the case. The method according to claim 1,
The fourth fixing jig (4000)
A pair of fourth support pin engagement grooves 4111 formed in the vicinity of the front and rear ends of the case 10 and having a rectangular structure having an area corresponding to or slightly smaller than the area of the front and rear surfaces of the case 10, And a reinforcing jig insertion groove 4113 formed at a middle point between the case insertion groove 4112 and the case insertion groove 4112. The reinforcing jig insertion groove 4111 is formed at the left / A fourth support plate 4110 having a plurality of fixing bolt insertion holes 4114 formed outside the case insertion groove 4112 and a fourth support pin engagement groove 4111 at both ends, And a fourth support pin 4120 coupled to the fastening hole 12 formed in the first support plate 41 to fix the case 10 to the fourth support plate 4110.
And the other surface 4220 is formed as an area that can be inserted into the inner side surface of the case 10 and the other surface 4220 is formed as a side surface width of the case 10, And is fastened to both sides of the case 10 placed on the fourth underside fixing jig 4100 in a block structure of the case 10 and has a fastening hole 12 A third side reinforcing jig 4200 having a bolt coupling hole 4221 formed at a position corresponding to the third side reinforcing jig 4200; And
The fourth side plate reinforcement jig 4200 is formed in a flat block structure having a predetermined thickness and is disposed on both side surfaces of the case 10 coupled to the third side plate reinforcement jig 4200 so as not to overlap with the third side plate reinforcement jig 4200, A fixing bolt insertion hole 4320 formed in the longitudinal direction so that the fixing bolt 4310 coupled to the fixing bolt insertion hole 4114 formed in the fixing bolt insertion hole 4114 can be inserted, A fourth fixing piece 4300 having a pressing bolt insertion hole 4340 through which a pressing bolt 4330 is inserted and coupled;
And a step of mounting the case to the case. The method according to claim 1,
Further comprising a final inspection step (S50) of inspecting the appearance, dimensions, and the like of the processed case (10) after the post-processing step (S40).

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