阅读说明：本技术 一种不同斜面锥齿轮加工工艺 (Processing technology of bevel gears with different inclined planes ) 是由 方兹培 于 2021-08-26 设计创作，主要内容包括：本发明涉及齿轮领域,尤其是涉及一种不同斜面锥齿轮加工工艺。其配合使用了一种不同斜面锥齿轮加工设备,该一种不同斜面锥齿轮加工设备包括对称安装在地面上的支撑架和加工箱,所述加工箱顶部设有第一支撑杆,所述支撑架中心设有锥齿轮调位固定装置,所述第一支撑杆上设有锥齿轮加工装置,所述第一支撑杆下方加工箱内设有分开收集切削液和切削屑的回收装置。本发明具有能够适应不同斜面锥齿轮角度的变化加工锥齿轮,降低锥齿轮的加工成本还有提高加工效率的效果。(The invention relates to the field of gears, in particular to a process for machining bevel gears with different inclined planes. The bevel gear machining equipment with different inclined planes is matched with bevel gear machining equipment, the bevel gear machining equipment with different inclined planes comprises a support frame and a machining box which are symmetrically installed on the ground, a first support rod is arranged at the top of the machining box, a bevel gear positioning and fixing device is arranged at the center of the support frame, a bevel gear machining device is arranged on the first support rod, and a recovery device for separately collecting cutting fluid and cutting chips is arranged in the machining box below the first support rod. The bevel gear machining device has the effects of adapting to the angle change of bevel gears with different inclined planes, reducing the machining cost of the bevel gears and improving the machining efficiency.)

1. The different bevel gear machining process is characterized in that different bevel gear machining equipment is used in cooperation, the different bevel gear machining equipment comprises a support frame (101) and a machining box (103) which are symmetrically installed on the ground, a first support rod (102) is arranged at the top of the machining box (103), a bevel gear position adjusting and fixing device (1) is arranged at the center of the support frame (101), a bevel gear machining device (2) is arranged on the first support rod (102), and a recovery device (3) for separately collecting cutting fluid and cutting chips is arranged in the machining box (103) below the first support rod (102).

2. The differential bevel gear processing process according to claim 1, the bevel gear position-adjusting fixing device (1) also comprises a first hydraulic tank (104) fixedly arranged at the center of the support frame (101), two first hydraulic rods (105) are symmetrically arranged at the left and the right of the upper end of the first hydraulic tank (104), a first supporting plate (106) is arranged at the top end of the first hydraulic rod (105), the first hydraulic rod (105) and the first supporting plate (106) can rotate left and right, a first servo motor (107) is fixedly arranged at the center of the bottom of the first supporting plate (106), a first rotating shaft (108) is fixedly arranged at the output end of the first servo motor (107), a second supporting plate (109) is fixedly arranged at one end of the first rotating shaft (108) far away from the first servo motor (107), and a second support rod (110) is fixedly arranged at the center of one end of the second support plate (109) far away from the first rotating shaft (108).

3. The differential bevel gear processing process according to claim 2, a third supporting plate (111) is fixedly arranged on one side of the first supporting plate (106) far away from the first supporting rod (102), the third supporting plate (111) is provided with two first sliding grooves (112) in an up-and-down symmetrical manner, a first sliding block (113) is arranged in each first sliding groove (112), a first spring (114) is connected between the bottom of the first sliding block (113) and the first sliding chute (112), the top of the first sliding block (113) is arc-shaped, a third supporting rod (115) is fixedly arranged below the bottom of the first sliding block (113), a fourth supporting plate (116) is fixedly arranged at one end of the third supporting rod (115) far away from the first sliding block (113), one end of the fourth supporting plate (116) close to the first sliding block (113) is provided with a first groove (119), and a hose (120) is arranged on one side of the bottom of the fourth supporting plate (116) far away from the third supporting rod (115).

4. The differential bevel gear processing process according to claim 3, an oil storage tank (117) is arranged at the upper end of the fourth supporting plate (116), a plurality of oil storage cavities (122) are arranged in the oil storage tank (117), a second hydraulic rod (118) is arranged in each oil storage cavity (122), the right end of the second hydraulic rod (118) is arc-shaped, the lower end of the fourth supporting plate (116) is provided with a second groove (121), a fifth supporting plate (123) is fixedly arranged on the side edge of the first supporting plate (106), a sixth supporting plate (124) is arranged on one side, close to the first servo motor (107), of the upper end of the fifth supporting plate (123), a second hydraulic tank (125) is fixedly arranged above the second supporting rod (110) at the bottom of the sixth supporting plate (124), and a third hydraulic rod (126) is fixedly arranged at the bottom of the second hydraulic tank (125), and a first pressing block (127) is fixedly arranged at the bottom of the third hydraulic rod (126).

5. The differential bevel gear processing process according to claim 4, the bevel gear machining device (2) comprises a second sliding block (201) arranged on the first supporting rod (102), a third hydraulic tank (202) is fixedly arranged at the bottom of the second sliding block (201), two seventh supporting plates (203) are arranged on the third hydraulic tank (202) in bilateral symmetry, a fourth hydraulic rod (204) is fixedly arranged on each seventh supporting plate (203), a second pressing block (205) is fixedly arranged at the top end of each fourth hydraulic rod (204), a fifth hydraulic rod (206) is fixedly arranged at the bottom of the third hydraulic tank (202), a second servo motor (207) is fixedly arranged at the bottom of the fifth hydraulic rod (206), a second rotating shaft (208) is fixedly arranged at the output end of the second servo motor (207), and a circular blade (209) is fixedly arranged at one end of the second rotating shaft (208) far away from the second servo motor (207).

6. The bevel gear machining process with different inclined surfaces according to claim 5, wherein the recovery device (3) comprises four second sliding grooves (301) arranged on the machining box (103), each second sliding groove (301) is provided with a sliding rail (302), each sliding rail (302) is provided with a third sliding block (303), the bottom of each third sliding block (303) is connected with the second sliding groove (301) through a second spring (304), one side, far away from the second sliding groove (301), of each third sliding block (303) is provided with a supporting block (305), the other side of each supporting block (305) is provided with a filtering net (306), an eighth supporting plate (307) is arranged above the filtering net (306), a plurality of convex blocks (309) are arranged above the eighth supporting plate (307), and a ninth supporting plate (308) is fixedly arranged on one side, close to the third hydraulic box (202), of the first supporting plate (106), two cutting scrap collecting boxes (310) are symmetrically arranged on the left and right sides below the filter screen (306), and a cutting fluid collecting box (311) is arranged below the filter screen (306).

7. The differential bevel gear processing process according to claims 1 to 6, wherein the differential bevel gear processing process comprises the steps of:

s1: the positioning bevel gear is placed on the second supporting plate (109), the inclined surface of the bevel gear can push the first sliding block (113) into the first sliding groove (112) to different degrees, the third supporting rod (115) drives the fourth supporting plate (116) to slide, hydraulic oil in the first hydraulic rod (105) enters the oil storage cavity (122) through the hose (120), and the larger the angle of the inclined surface of the bevel gear is, the larger the height difference between the two first hydraulic rods (105) is;

s2: fixing the bevel gear, wherein the innermost second hydraulic rod (118) in the oil storage tank (117) presses the third support rod (115) so that the first sliding block (113) is fixed at the position and plays a role in auxiliary fixing in the subsequent machining process, and the third hydraulic rod (126) pushes the first pressing block (127) to press the bevel gear;

s3: processing a bevel gear, wherein a circular blade (209) rotates under the action of a second servo motor (207), a fifth hydraulic rod (206) drives the circular blade (209) to cut the bevel gear downwards, after one side is cut, a first servo motor (107) drives the bevel gear to rotate for a certain angle, and the cutting process is repeated until one bevel gear is cut;

s4: the cutting chips generated by cutting fall on the filter screen (306) along with the cutting fluid, the cutting fluid flows into the cutting fluid collecting box (311), when the first supporting plate (106) rotates, the ninth supporting plate (308) presses one side of the filter screen (306), the filter screen (306) is driven to shake once by the ninth supporting plate (308) passing through one bump (309) in the process, and finally the cutting chips are shaken into the cutting chip collecting boxes (310) on the two sides.

Technical Field

The invention relates to the field of gears, in particular to a process for machining bevel gears with different inclined planes.

Background

The bevel gear is widely applied to the mechanical transmission fields of automobiles, aviation, mines and the like. At present, the machining methods of bevel gears at home and abroad mainly comprise two methods: 1. the bevel gear special processing equipment needs special machine tool equipment, 2, numerical control milling of a digital tooth surface, and the equipment is expensive and has low processing efficiency.

However, in some occasions where high-precision bevel gears are not needed, the bevel gears processed by the methods are too expensive, so that a different bevel gear processing technology needs to be designed, the processing cost is low, the working efficiency is relatively high, and the bevel gear processing technology can adapt to the angle change processing of different bevel gears.

Disclosure of Invention

The invention aims to provide a process for machining bevel gears with different inclined planes, which aims to solve the problems in the prior art, and has the effects of adapting to the change of angles of bevel gears with different inclined planes, reducing the machining cost of the bevel gears and improving the machining efficiency.

In order to achieve the purpose, the invention adopts the following technical scheme:

the bevel gear machining process comprises different bevel gear machining equipment, wherein the different bevel gear machining equipment comprises a support frame and a machining box which are symmetrically installed on the ground, a first support rod is arranged at the top of the machining box, a bevel gear positioning and fixing device is arranged at the center of the support frame, a bevel gear machining device is arranged on the first support rod, and a recovery device for separately collecting cutting fluid and cutting chips is arranged in the machining box below the first support rod.

Preferably, the bevel gear positioning and fixing device further comprises a first hydraulic tank fixedly arranged at the center of the support frame, two first hydraulic rods are symmetrically arranged at the upper end of the first hydraulic tank in a left-right mode, a first supporting plate is arranged at the top end of each first hydraulic rod, the first hydraulic rods and the first supporting plate can rotate left and right, a first servo motor is fixedly arranged at the center of the bottom of the first supporting plate, a first rotating shaft is fixedly arranged at the output end of the first servo motor, a second supporting plate is fixedly arranged at one end, away from the first servo motor, of the first rotating shaft, and a second supporting rod is fixedly arranged at the center of one end, away from the first rotating shaft, of the second supporting plate.

Preferably, one side of keeping away from first bracing piece in the first backup pad has set firmly the third backup pad, third backup pad longitudinal symmetry is equipped with two first spouts, every all be equipped with first slider in the first spout, be connected with first spring between first slider bottom and the first spout, first slider top is the circular arc type, first slider bottom below has set firmly the third bracing piece, the one end that first slider was kept away from to the third bracing piece has set firmly the fourth backup pad, the one end that the fourth backup pad is close to first slider is equipped with first groove, one side that the third bracing piece was kept away from to fourth backup pad bottom is equipped with the hose.

Preferably, fourth backup pad upper end is equipped with the batch oil tank, be equipped with a plurality of oil storage chambeies in the batch oil tank, every oil storage intracavity is equipped with the second hydraulic stem, the second hydraulic stem right-hand member is the circular arc type, fourth backup pad lower extreme is equipped with the second groove, first backup pad side has set firmly the fifth backup pad, one side that fifth backup pad upper end is close to first servo motor is equipped with the sixth backup pad, the top of sixth backup pad bottom second bracing piece has set firmly the second hydraulic tank, second hydraulic tank bottom has set firmly the third hydraulic stem, the third hydraulic stem bottom has set firmly first briquetting.

Preferably, the bevel gear processing device comprises a second sliding block arranged on the first supporting rod, a third hydraulic tank is fixedly arranged at the bottom of the second sliding block, two seventh supporting plates are symmetrically arranged on the left and right of the third hydraulic tank, a fourth hydraulic rod is fixedly arranged on each seventh supporting plate, a second pressing block is fixedly arranged at the top end of each fourth hydraulic rod, a fifth hydraulic rod is fixedly arranged at the bottom of the third hydraulic tank, a second servo motor is fixedly arranged at the bottom of the fifth hydraulic rod, a second rotating shaft is fixedly arranged at the output end of the second servo motor, and a circular blade is fixedly arranged at one end, away from the second servo motor, of the second rotating shaft.

Preferably, the recovery device comprises four second chutes arranged on the processing box, each second chute is provided with a slide rail, each slide rail is provided with a third slide block, the bottom of each third slide block is connected with a second chute through a second spring, one side of each third slide block, which is far away from the second chute, is provided with a support block, the other side of each support block is provided with a filter screen, an eighth support plate is arranged above the filter screen, a plurality of convex blocks are arranged above the eighth support plate, a ninth support plate is fixedly arranged on one side, which is close to the third hydraulic box, of the first support plate, two cutting scrap collecting boxes are symmetrically arranged below the filter screen, and a cutting fluid collecting box is arranged below the filter screen.

Preferably, the different bevel gear machining process comprises the following steps:

s1: position adjusting bevel gear places bevel gear in the second backup pad, and bevel gear's inclined plane can push first spout with first slider not equidimension, drives the fourth backup pad through the third bracing piece and slides, and hydraulic oil in the first hydraulic stem passes through the hose and gets into the oil storage chamber, and bevel gear's inclined plane angle is big more, and the difference in height of two first hydraulic stems is also big more.

S2: the bevel gear is fixed, the innermost second hydraulic rod in the oil storage tank presses the third supporting rod at the moment, the first sliding block is fixed at the position, the auxiliary fixing effect is achieved in the later machining process, and the third hydraulic rod pushes the first pressing block to press the bevel gear.

S3: and (3) processing the bevel gear, wherein the circular blade rotates under the action of the second servo motor, the fifth hydraulic rod drives the circular blade to cut the bevel gear downwards, after one side of the bevel gear is cut, the first servo motor drives the bevel gear to rotate by a certain angle, and the cutting process is repeated until one bevel gear is cut.

S4: recycle, the cutting bits that the cutting produced fall on the filter screen along with the cutting fluid, and the cutting fluid flows into in the cutting fluid collection box, and when first backup pad rotated, one side of filter screen was pressed down to the ninth backup pad, and every process of this in-process ninth backup pad will drive the filter screen shake once, finally trembles the cutting bits into in the cutting bits collection box of both sides.

Has the advantages that:

1. bevel gear's inclined plane can push first spout with first slider not equidimension ground, drives the slip of fourth backup pad through the third bracing piece, and hydraulic oil in the first hydraulic stem passes through the hose and gets into the oil storage chamber, and bevel gear's inclined plane angle is big more, and two first hydraulic stems's difference in height is also big more, reaches the effect that adapts to different angle inclined plane bevel gear processing.

2. The innermost second hydraulic rod in the oil storage tank can press the third support rod, so that the first sliding block is fixed at the position and plays a role in auxiliary fixing in the subsequent processing process.

3. Cutting bits that the cutting produced fall on the filter screen along with the cutting fluid, and the cutting fluid flows into in the cutting fluid collection box, and when first backup pad rotated, one side of filter screen was pressed down to the ninth backup pad, and every through a lug will drive the filter screen shake once in this in-process ninth backup pad, finally will cut the bits and tremble into the cutting bits collection box of both sides.

Drawings

FIG. 1 is a front cross-sectional view of the present invention;

FIG. 2 is a side cross-sectional view of the present invention;

FIG. 3 is an enlarged view of a portion A of FIG. 1;

FIG. 4 is a side cross-sectional view taken at A in FIG. 1;

fig. 5 is a partially enlarged view of fig. 1 at B.

In the figure: a support frame 101, a processing box 103, a first support rod 102, a bevel gear position-adjusting fixing device 1, a first hydraulic box 104, a first hydraulic rod 105, a first support plate 106, a first servo motor 107, a first rotating shaft 108, a second support plate 109, a second support rod 110, a third support plate 111, a first sliding chute 112, a first sliding block 113, a first spring 114, a third support rod 115, a fourth support plate 116, a first groove 119, a hose 120, an oil storage tank 117, an oil storage cavity 122, a second hydraulic rod 118, a second groove 121, a fifth support plate 123, a sixth support plate 124, a second hydraulic box 125, a third hydraulic rod 126, a first pressing block 127, a bevel gear processing device 2, a second sliding block 201, a third hydraulic box 202, a seventh support plate 203, a fourth hydraulic rod 204, a second hydraulic rod 205, a fifth hydraulic rod 206, a second servo motor 207, a second rotating shaft 208, a circular blade 209, a recovery device 3, a second chute 301, a slide rail 302, a third slide block 303, a second spring 304, a support block 305, a filter screen 306, an eighth support plate 307, a projection 309, a ninth support plate 308, a cutting chip collection box 310, and a cutting fluid collection box 311.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

In the description of the present invention, it should be noted that the terms "inside", "below", and the like refer to orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention conventionally place when used, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

Referring to the attached drawings 1-5, a different bevel gear processing technology is matched with different bevel gear processing equipment, the different bevel gear processing equipment comprises a support frame 101 and a processing box 103 which are symmetrically installed on the ground, a first support rod 102 is arranged at the top of the processing box 103, a bevel gear position adjusting and fixing device 1 is arranged at the center of the support frame 101, a bevel gear processing device 2 is arranged on the first support rod 102, and a recovery device 3 for separately collecting cutting fluid and cutting chips is arranged in the processing box 103 below the first support rod 102.

Further, with reference to fig. 1, 2 and 3, the bevel gear positioning and fixing device 1 further includes a first hydraulic tank 104 fixed at the center of the support frame 101, two first hydraulic rods 105 are symmetrically arranged on the left and right of the upper end of the first hydraulic tank 104, a first support plate 106 is arranged on the top of the first hydraulic rod 105, the first hydraulic rod 105 and the first support plate 106 can rotate left and right, a first servo motor 107 is fixed at the center of the bottom of the first support plate 106, a first rotating shaft 108 is fixed at the output end of the first servo motor 107, a second support plate 109 is fixed at one end of the first rotating shaft 108 far away from the first servo motor 107, and a second support rod 110 is fixed at one end of the second support plate 109 far away from the first rotating shaft 108.

Further, with reference to fig. 1, 2 and 4, a third support plate 111 is fixedly disposed on one side of the first support plate 106 away from the first support rod 102, two first sliding grooves 112 are symmetrically disposed on the third support plate 111 up and down, a first sliding block 113 is disposed in each first sliding groove 112, a first spring 114 is connected between the bottom of each first sliding block 113 and the first sliding groove 112, the top of each first sliding block 113 is arc-shaped, a third support rod 115 is fixedly disposed below the bottom of each first sliding block 113, a fourth support plate 116 is fixedly disposed on one end of each third support rod 115 away from the first sliding block 113, a first groove 119 is disposed on one end of each fourth support plate 116 close to the first sliding block 113, and a hose 120 is disposed on one side of the bottom of each fourth support plate 116 away from the third support rod 115.

Further, with reference to fig. 1, 2, and 4, an oil storage tank 117 is disposed at the upper end of the fourth support plate 116, a plurality of oil storage cavities 122 are disposed in the oil storage tank 117, a second hydraulic rod 118 is disposed in each oil storage cavity 122, the right end of the second hydraulic rod 118 is of an arc shape, a second groove 121 is disposed at the lower end of the fourth support plate 116, a fifth support plate 123 is fixedly disposed at the side of the first support plate 106, a sixth support plate 124 is disposed at one side of the upper end of the fifth support plate 123 close to the first servo motor 107, a second hydraulic tank 125 is fixedly disposed above the second support rod 110 at the bottom of the sixth support plate 124, a third hydraulic rod 126 is fixedly disposed at the bottom of the second hydraulic tank 125, and a first pressing block 127 is fixedly disposed at the bottom of the third hydraulic rod 126.

Further, with reference to fig. 1 and 2, the bevel gear processing apparatus 2 includes a second slider 201 disposed on the first support rod 102, a third hydraulic tank 202 is fixedly disposed at the bottom of the second slider 201, two seventh support plates 203 are disposed on the third hydraulic tank 202 in bilateral symmetry, a fourth hydraulic rod 204 is fixedly disposed on each seventh support plate 203, a second pressing block 205 is fixedly disposed at the top end of each fourth hydraulic rod 204, a fifth hydraulic rod 206 is fixedly disposed at the bottom of the third hydraulic tank 202, a second servo motor 207 is fixedly disposed at the bottom of the fifth hydraulic rod 206, a second rotating shaft 208 is fixedly disposed at an output end of the second servo motor 207, and a circular blade 209 is fixedly disposed at one end of the second rotating shaft 208, which is far away from the second servo motor 207.

Further, with reference to fig. 1 and 5, the recycling device 3 includes four second sliding grooves 301 disposed on the processing box 103, each second sliding groove 301 is provided with a sliding rail 302, each sliding rail 302 is provided with a third sliding block 303, the bottom of each third sliding block 303 is connected with the second sliding groove 301 by a second spring 304, one side of each third sliding block 303 away from the second sliding groove 301 is provided with a supporting block 305, the other side of the supporting block 305 is provided with a filtering net 306, an eighth supporting plate 307 is disposed above the filtering net 306, a plurality of bumps 309 are disposed above the eighth supporting plate 307, a ninth supporting plate 308 is fixedly disposed on one side of the first supporting plate 106 close to the third hydraulic box 202, two cutting chip collecting boxes 310 are symmetrically disposed below the filtering net 306, and a cutting fluid collecting box 311 is disposed below the filtering net 306.

The processing technology of the bevel gears with different inclined planes comprises the following steps:

s1: the bevel gear that adjusts a position places bevel gear on second backup pad 109, and bevel gear's inclined plane can push first slider 113 into first spout 112 to different degrees, drives fourth backup pad 116 through third bracing piece 115 and slides, and the hydraulic oil in first hydraulic stem 105 passes through hose 120 and gets into oil storage chamber 122, and the inclined plane angle of bevel gear is big more, and the difference in height of two first hydraulic stems 105 is also big more.

S2: and (3) fixing the bevel gear, wherein the second hydraulic rod 118 at the innermost part in the oil storage tank 117 presses the third support rod 115, so that the first sliding block 113 is fixed at the position and plays a role in auxiliary fixing in the subsequent machining process, and the third hydraulic rod 126 pushes the first pressing block 127 to press the bevel gear.

S3: and (3) processing the bevel gear, wherein the circular blade 209 rotates under the action of the second servo motor 207, the fifth hydraulic rod 206 drives the circular blade 209 to cut the bevel gear downwards, after one side is cut, the first servo motor 107 drives the bevel gear to rotate by a certain angle, and the cutting process is repeated until one bevel gear is cut.

S4: the cutting chips generated by cutting fall on the filter screen 306 along with the cutting fluid, the cutting fluid flows into the cutting fluid collection box 311, when the first support plate 106 rotates, the ninth support plate 308 presses one side of the filter screen 306, the filter screen 306 is driven to shake once by the ninth support plate 308 passing through one bump 309 in the process, and finally the cutting chips are shaken into the cutting chip collection boxes 310 on the two sides.

The working principle is as follows: the bevel gear is placed on the second supporting plate 109, the inclined plane of the bevel gear can push the first sliding block 113 into the first sliding groove 112 to different degrees, the third supporting rod 115 drives the fourth supporting plate 116 to slide, hydraulic oil in the first hydraulic rod 105 enters the oil storage cavity 122 through the hose 120, the larger the angle of the inclined plane of the bevel gear is, the larger the height difference between the two first hydraulic rods 105 is, and the effect of adapting to the processing of the bevel gears with different angles is achieved. At this time, the innermost second hydraulic rod 118 in the oil storage tank 117 presses the third support rod 115, so that the first sliding block 113 is fixed at this position, and plays a role in auxiliary fixing in the subsequent machining process, and the third hydraulic rod 126 pushes the first pressing block 127 to press the bevel gear.

The circular blade 209 rotates under the action of the second servo motor 207, the fifth hydraulic rod 206 drives the circular blade 209 to cut a bevel gear downwards, after one side is cut, the first servo motor 107 drives the bevel gear to rotate by a certain angle, and the cutting process is repeated until one bevel gear is cut. Cutting chips generated by cutting fall on the filter screen 306 along with cutting fluid, the cutting fluid flows into the cutting fluid collection box 311, when the first support plate 106 rotates, the ninth support plate 308 presses one side of the filter screen 306, the filter screen 306 is driven to shake once by the ninth support plate 308 passing through each bump 309 in the process, and finally the cutting chips are shaken into the cutting chip collection boxes 310 on the two sides.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.