CN115555995B - Integrated grinding fixture for inner and outer surfaces of support arm notch and application method thereof - Google Patents
Integrated grinding fixture for inner and outer surfaces of support arm notch and application method thereof Download PDFInfo
- Publication number
- CN115555995B CN115555995B CN202211169048.6A CN202211169048A CN115555995B CN 115555995 B CN115555995 B CN 115555995B CN 202211169048 A CN202211169048 A CN 202211169048A CN 115555995 B CN115555995 B CN 115555995B
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- support arm
- positioning
- grinding
- support
- notch
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- 238000000227 grinding Methods 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000003754 machining Methods 0.000 claims abstract description 6
- 238000003825 pressing Methods 0.000 claims description 27
- 238000009434 installation Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000007306 turnover Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/0092—Grinding attachments for lathes or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
The invention belongs to the technical field of aviation machining, and relates to an integrated grinding clamp for inner and outer surfaces of a notch of a support arm and a use method thereof, which are used for grinding the inner and outer surfaces of a connecting support arm of an airplane tail wing. The invention solves the problem of integral grinding of the inner surface and the outer surface of the notch of the support arm, improves the processing efficiency of parts, improves the product quality, reduces the turnover time and human resources of the parts, obtains certain economic benefit, and improves the technical level and the capability of solving the practical problem. While providing manufacturing basis for similar parts.
Description
Technical Field
The invention belongs to the technical field of aviation machining, and relates to an integrated grinding clamp for inner and outer surfaces of a notch of a support arm and a use method thereof, which are used for grinding the inner and outer surfaces of a connecting support arm of an airplane tail wing.
Background
The support arm material is a 1Cr15Ni4Mo3N stainless steel part, the strength is high, the processing difficulty is high, the notch size requirement is high, the surface roughness precision is high, in addition, the perpendicularity between a part mounting hole and a notch plane is 0.05, and the common processing methods such as milling or bench filing are difficult to meet the size and roughness requirements of drawings, so that the precision and the roughness are comprehensively improved by adopting grinding. However, at present, the part is difficult to fix due to the lack of a positioning element, so that the positioning of the part is realized by adopting an assembling clamp in the processing process, and the assembling clamp has the following problems: 1. the assembling clamp is formed by splicing various elements, and the used elements are more and heavier, so that the assembling clamp is inconvenient to store and transport; 2. the assembling state is unstable, and the dimensional accuracy of the parts is affected; 3. poor assembly rigidity, and deviation of positioning can be caused after multiple processing; 4. the positioning reference is converted for a plurality of times, so that tolerance accumulation is easy to cause; 5. the turnover time between the assembling clamp and the working procedure is long, and the construction period is easy to be prolonged. The problems described above seriously affect the production progress and the quality of the product in the process, and a better way is required to be solved. Therefore, an integrated grinding fixture for the inner surface and the outer surface of the notch of the support arm needs to be designed, so that the stability of a part in the grinding process is ensured, the grinding size precision of the part is improved, and the precision of the machined part is ensured to meet the design index requirement.
Disclosure of Invention
The invention aims at the clamp used for integrally processing the grinding notch and the outer side plane of the support arm, ensures stable processing and dimensional accuracy, and improves the processing efficiency. The clamp adopts a mode of positioning two holes and an end face, and is pressed by a pressing plate.
The technical scheme of the invention is as follows:
the integrated grinding fixture for the inner and outer surfaces of the notch of the support arm comprises a support A, a locating pin, a bushing, a locating block, a pressing plate, a bottom plate, a support B, a cylindrical pin, a tightening screw and a limiting pin;
the bottom plate is a base of the tool, is a main base plate of the tool, and is a base band for connecting the tool main body and the machine tool workbench; the locating pin is arranged on the locating block through a screw and is mainly connected and matched with the part reference hole, the subsequent part grinding is carried out as a locating reference, after the hole of the lug of the support arm passes through the locating pin, the lug is tightly pressed on the end face of the locating block by screwing the nut, and the hexagonal thin nut is arranged on the lug, so that the pressing area of the lug is increased, and the locating stability is improved;
the cylindrical pin connects the positioning block on the support A, and screws are screwed down after the position is determined, so that the installation stability of the positioning block is ensured; the pressing plate is connected to the positioning block through a bolt, the position of the pressing plate can be adjusted by adjusting the position of the hexagonal thin nut, when the positioning block is used, the stud penetrates through the kidney-shaped hole in the pressing plate and acts on the web plate of the support arm, the pressing nut is screwed to apply force along the axial direction of the hole to the part, the part is pressed on the positioning block, the side surface direction of the part is assisted in positioning, and the phenomenon of poor rigidity caused by overlong part length is prevented;
the support A and the support B are arranged on the bottom plate through pins, after the support A and the support B are arranged, the support A and the support B are used for installing 2 positioning bolts through connecting screws, and when the support is used, the support A and the support B penetrate through the bushings and are respectively used in positioning holes on two sides of the lug of the fork arm lug, so that the support arm is limited to be installed in the angular direction on the clamp, and the positioning effect is achieved; after the fixture is assembled, the fixture is lifted to the workbench through the eye screw, the direction of the limiting pin is adjusted, the fixture is aligned to the key slot of the workbench of the machine tool and is connected with the key slot, the fixture is pressed on other surfaces of the fixture support by the pressing plate, and the fixture clamping stability is high.
The method for integrally grinding the inner surface and the outer surface of the notch of the support arm comprises the following steps:
the first step: the integrated grinding fixture for the inner and outer surfaces of the notch of the support arm is arranged on a machine tool, 2 limiting pins are arranged in key grooves of a grinding machine, pressing plates are arranged in other key grooves of the workbench, a support A is pressed on the surface of the workbench, parallelism between the end face of a positioning block and the end face of a grinding wheel is measured through a dial indicator to be less than or equal to 0.05mm, the size requirement of a part after grinding can be met, an lug of the support arm passes through the No. 2 positioning pin to be tightly abutted against the end face of the positioning block, the lug is tightly pressed on the end face of the positioning block by screwing a nut, a hexagonal thin nut is arranged on the lug, and the pressing area of the lug is increased.
And a second step of: after the 2 positioning bolts are respectively inserted into the two positioning holes at the lug pieces of the fork lug, the compression nut is locked, the pressure at the web plate of the support arm is increased, and the installation stability is improved. Before grinding, the parallelism between the position to be machined and the grinding wheel is measured by a dial indicator to be less than or equal to 0.05mm, and machining can be started.
Cutting parameters: ns=500 r/min; vf=40 mm/min; ap=0.01 mm.
The beneficial effects of the invention are as follows:
1. the mounting pin matched with the key groove of the machine tool is arranged at the part bottom plate, so that the clamp can be mounted on the machine tool surface when in use, and the machining stability is ensured;
2. the finished end face is used as a positioning face, so that the wall thickness of the part is ensured;
3. positioning by two holes to ensure the perpendicularity (0.05) requirement of the connecting line of the notch and the two holes;
4. set up the feeler block in the notch outside, with the locating shaft to guarantee notch plane and mounting hole's straightness size that hangs down, during grinding outside plane, install its locating shaft of another direction, the size is accurate, simple to operate, and then through a set of anchor clamps, realize the planar integration grinding in part notch and outside, this kind of clamping mode not only fixes a position accurately, stable in structure, more can raise the efficiency.
Drawings
FIG. 1 is a schematic diagram of an arm part mounting;
FIG. 2 is a front view of a clamp;
FIG. 3 is a top view of the clamp;
fig. 4 is a cross-sectional view of the clamp.
Reference numerals: 1, a support A;2, positioning pins; 3, lining; 4, positioning blocks; 5, pressing plates; 6, a bottom plate; 7, a support B;8, compressing a nut; 9 studs; 10 bolts; 11 hexagonal thin nuts; a 12-nut; 13 an open washer; 14 cylindrical pins; 15 screws; 16 pins; 17 screwing the screw; 18 limit pins; 19 lifting ring screws; 20 positioning a bolt; 21 are connected with screws.
Detailed Description
The present invention will now be further described with reference to the accompanying drawings
Example 1:
the integrated grinding fixture for the inner and outer surfaces of the notch of the support arm comprises a support A1, a locating pin 2, a bushing 3, a locating block 4, a pressing plate 5, a bottom plate 6, a support B7, a cylindrical pin 14, a tightening screw 17 and a limiting pin 18;
the bottom plate 6 is a base of the tool, is a main base plate of the tool, and is a base band for connecting the tool main body and the machine tool workbench; the locating pin 2 is arranged on the locating block 4 through the screw 15 and is mainly connected and matched with a part reference hole, the subsequent part grinding is carried out as a locating reference, after the hole of the lug of the support arm passes through the locating pin 2, the lug is tightly pressed on the end face of the locating block 4 by screwing the nut 12, and the hexagonal thin nut 11 is arranged on the lug, so that the pressing area of the lug is increased, and the locating stability is improved;
the cylindrical pin 14 connects the positioning block 4 on the support A1, and screws the tightening screw 17 after determining the position, so that the installation stability of the positioning block is ensured; the pressing plate 5 is connected to the positioning block 4 through a bolt 10, the position of the positioning block can be adjusted by adjusting the position of the hexagonal thin nut 11, when the positioning block is used, the stud 9 passes through a kidney-shaped hole in the pressing plate and acts on a web plate of the support arm, and the pressing nut 8 is screwed to apply force along the axial direction of the hole to a part to press the part on the positioning block 4, so that the side surface direction of the part is assisted to position, and the phenomenon of poor rigidity caused by overlong part length is prevented;
the support A1 and the support B7 are arranged on the bottom plate 6 through pins 16, after the support A1 and the support B7 are arranged, the connection screws 21 are used for installing 2 positioning bolts 20, when the support is used, the two bolts penetrate out through the bushings 3 and are respectively used in positioning holes on two sides of the lug plate of the support arm fork lug, and the support arm is used for limiting the angular direction of the support arm arranged on the clamp, so that the positioning effect is achieved; after the fixture is assembled, the fixture is lifted to the workbench through the eye screw 19, the direction of the limiting pin 18 is adjusted, the fixture is aligned with the key slot of the workbench of the machine tool and is connected with the key slot, the fixture is pressed on other surfaces of the fixture support by the pressing plate, and the fixture clamping stability is high.
Example 2:
the method for integrally grinding the inner surface and the outer surface of the notch of the support arm comprises the following steps:
the first step: the integrated grinding fixture for the inner and outer surfaces of the notch of the support arm is arranged on a machine tool, 2 limiting pins 18 are arranged in key grooves of the grinding machine, a pressing plate 5 is arranged in other key grooves of the workbench, a support A1 is pressed on the surface of the workbench, the parallelism between the end face of the positioning block 4 and the end face of the grinding wheel is measured by a dial indicator to be less than or equal to 0.05mm, the size requirement of a part after grinding can be met, an lug of the support arm passes through a No. 2 positioning pin to be abutted against the end face of the positioning block, a lug is tightly pressed on the end face of the positioning block 4 by a screw nut 12, a hexagonal thin nut 11 is arranged on the lug, and the pressing area of the lug is increased.
And a second step of: after the 2 positioning bolts 20 are respectively inserted into the two positioning holes at the lug pieces of the fork, the compression nut 8 is locked, the pressure at the web plate of the support arm is increased, and the installation stability is improved. Before grinding, the parallelism between the position to be machined and the grinding wheel is measured by a dial indicator to be less than or equal to 0.05mm, and machining can be started.
Cutting parameters: ns=500 r/min; vf=40 mm/min; ap=0.01 mm.
The invention solves the problem of integral grinding of the inner surface and the outer surface of the notch of the support arm, improves the processing efficiency of parts, improves the product quality, reduces the turnover time and human resources of the parts, obtains certain economic benefit, and improves the technical level and the capability of solving the practical problem. While providing manufacturing basis for similar parts.
The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.
Claims (5)
1. The integrated grinding clamp for the inner surface and the outer surface of the notch of the support arm is characterized by comprising a support A (1), a positioning pin (2), a bushing (3), a positioning block (4), a pressing plate (5), a bottom plate (6), a support B (7) and a cylindrical pin (14);
the bottom plate (6) is a base of the tool, is a main base plate of the tool, and is a base band for connecting the tool main body and the machine tool workbench; the locating pin (2) is arranged on the locating block (4) through a screw (15), is mainly connected and matched with a part reference hole, is used as a locating reference for carrying out subsequent part grinding, passes through the locating pin (2) through a hole of an ear piece of the support arm, and is tightly pressed on the end face of the locating block (4) by screwing a nut (12);
the cylindrical pin (14) connects the positioning block (4) on the support A (1), and screws the tightening screw (17) after determining the position to ensure the installation stability; the pressing plate (5) is connected to the positioning block (4) through a bolt (10), the position of the pressing plate can be adjusted by adjusting the position of the hexagonal thin nut (11), the stud (9) passes through a kidney-shaped hole in the pressing plate and acts on a web plate of the support arm, the pressing nut (8) is screwed down to apply force along the axial direction of the hole to the part, the part is pressed on the positioning block (4), the side surface direction of the part is assisted in positioning, and the phenomenon of poor rigidity caused by overlong part length is prevented;
the support A (1) and the support B (7) are arranged on the bottom plate (6) through pins (16), the positioning bolts (20) are arranged on connecting screws (21), the pins (16) and the positioning bolts (20) penetrate out through bushings (3) and are respectively used in positioning holes on two sides of the lug plate of the support arm fork lug, and the positioning holes are used for limiting the angle direction of the support arm arranged on the clamp and play a role in positioning.
2. The integrated grinding fixture for the inner and outer surfaces of the notch of the support arm according to claim 1, further comprising a lifting screw (19), wherein the lifting screw (19) lifts the fixture onto the workbench, adjusts the direction of the limiting pin (18), and aligns with the key slot of the workbench of the machine tool to be connected with the lifting screw.
3. An integrated grinding fixture for the inner and outer surfaces of a support arm notch according to claim 1 or 2, wherein the screwing nut (12) presses the lug on the end surface of the positioning block (4), and a hexagonal thin nut (11) is arranged on the lug.
4. The method for using the support arm notch inner and outer surface integrated grinding clamp as claimed in claim 1 or 2, which is characterized by comprising the following steps:
the first step: the method comprises the steps of installing an integrated grinding fixture on the inner surface and the outer surface of a notch of a support arm on a machine tool, installing 2 limiting pins (18) in key grooves of a grinding machine, installing pressing plates (5) in other key grooves of a workbench, pressing a support A (1) on the surface of the workbench, measuring the parallelism of the end face of a positioning block (4) and the end face of a grinding wheel to be less than or equal to 0.05mm through a dial indicator, and after the size requirement of a part after grinding can be met, enabling an ear piece of the support arm to pass through a No. 2 positioning pin to be close to the end face of the positioning block, tightly pressing the ear piece on the end face of the positioning block (4) by screwing a nut (12), installing a hexagonal thin nut (11) on the ear piece, and increasing the compression area of the ear piece;
and a second step of: after the 2 positioning bolts (20) are respectively inserted into the two positioning holes at the lug pieces of the fork lugs, the compression nuts (8) are locked, the pressure at the web plate of the support arm is increased, and the installation stability is improved; before grinding, the parallelism between the position to be machined and the grinding wheel is measured by a dial indicator to be less than or equal to 0.05mm, and machining can be started.
5. The method of claim 4, wherein in the second step, the cutting parameters are as follows: ns=500 r/min; vf=40 mm/min; ap=0.01 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211169048.6A CN115555995B (en) | 2022-09-26 | 2022-09-26 | Integrated grinding fixture for inner and outer surfaces of support arm notch and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211169048.6A CN115555995B (en) | 2022-09-26 | 2022-09-26 | Integrated grinding fixture for inner and outer surfaces of support arm notch and application method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115555995A CN115555995A (en) | 2023-01-03 |
| CN115555995B true CN115555995B (en) | 2024-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211169048.6A Active CN115555995B (en) | 2022-09-26 | 2022-09-26 | Integrated grinding fixture for inner and outer surfaces of support arm notch and application method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115555995B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203993216U (en) * | 2014-08-19 | 2014-12-10 | 南通力科机床制造有限公司 | For the frock clamp of machining tool lifting platform |
| CN104299816A (en) * | 2014-04-28 | 2015-01-21 | 国家电网公司 | Isolation switch transmission mechanism assembly tool |
| CN104439367A (en) * | 2014-11-24 | 2015-03-25 | 中航飞机股份有限公司西安飞机分公司 | Drilling method of airplane double-lug part and drill jig clamp |
| CN108340173A (en) * | 2018-03-02 | 2018-07-31 | 苏州市昌星模具机械有限公司 | A kind of efficient high-precision fixture and its clamping method of undercarriage holder |
| CN208231330U (en) * | 2018-04-26 | 2018-12-14 | 沈阳新宝路航空科技有限公司 | A kind of separation support arm boring sequence positioning device |
| WO2021120661A1 (en) * | 2019-12-17 | 2021-06-24 | 中车长江铜陵车辆有限公司 | Device for machining coupler knuckle pin hole |
| CN213764155U (en) * | 2020-10-19 | 2021-07-23 | 青岛钢蔚弘升机械设备有限公司 | Hole milling tool for seat body |
| CN113211144A (en) * | 2021-05-06 | 2021-08-06 | 湖北三环锻造有限公司 | Drilling fixture for main pin hole of steering knuckle with arm |
| CN215967494U (en) * | 2021-06-11 | 2022-03-08 | 江西昌河航空工业有限公司 | Boring and inspection clamp for airplane steering engine installation model |
-
2022
- 2022-09-26 CN CN202211169048.6A patent/CN115555995B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104299816A (en) * | 2014-04-28 | 2015-01-21 | 国家电网公司 | Isolation switch transmission mechanism assembly tool |
| CN203993216U (en) * | 2014-08-19 | 2014-12-10 | 南通力科机床制造有限公司 | For the frock clamp of machining tool lifting platform |
| CN104439367A (en) * | 2014-11-24 | 2015-03-25 | 中航飞机股份有限公司西安飞机分公司 | Drilling method of airplane double-lug part and drill jig clamp |
| CN108340173A (en) * | 2018-03-02 | 2018-07-31 | 苏州市昌星模具机械有限公司 | A kind of efficient high-precision fixture and its clamping method of undercarriage holder |
| CN208231330U (en) * | 2018-04-26 | 2018-12-14 | 沈阳新宝路航空科技有限公司 | A kind of separation support arm boring sequence positioning device |
| WO2021120661A1 (en) * | 2019-12-17 | 2021-06-24 | 中车长江铜陵车辆有限公司 | Device for machining coupler knuckle pin hole |
| CN213764155U (en) * | 2020-10-19 | 2021-07-23 | 青岛钢蔚弘升机械设备有限公司 | Hole milling tool for seat body |
| CN113211144A (en) * | 2021-05-06 | 2021-08-06 | 湖北三环锻造有限公司 | Drilling fixture for main pin hole of steering knuckle with arm |
| CN215967494U (en) * | 2021-06-11 | 2022-03-08 | 江西昌河航空工业有限公司 | Boring and inspection clamp for airplane steering engine installation model |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115555995A (en) | 2023-01-03 |
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