CN116765468B - Drilling device and method for rocker arm parts - Google Patents
Drilling device and method for rocker arm parts Download PDFInfo
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- CN116765468B CN116765468B CN202310935304.6A CN202310935304A CN116765468B CN 116765468 B CN116765468 B CN 116765468B CN 202310935304 A CN202310935304 A CN 202310935304A CN 116765468 B CN116765468 B CN 116765468B
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Abstract
本发明公开了一种摇臂零件的钻孔装置及方法，属于机械加工技术领域。所述钻孔装置包括基座、钻模板、固定钻套、带孔定位凸台、主定位销、主支撑台、辅支撑台、带孔L形压板、立柱、紧固螺母、压紧螺栓、定位销、L形压板、可调钻套、拨杆和支撑杆。本发明加工精度高，采用该装置可以通过已加工的孔和铸件基准面进行定位，通过多个辅助支撑提高加工刚度，防止加工变形，提高了零件的钻孔精度和效率；该钻孔装置结构简单，操作方便，制造和维修的成本低，适用于批量化生产，显著提高了生产效率。
The present invention discloses a drilling device and method for rocker arm parts, and belongs to the field of mechanical processing technology. The drilling device includes a base, a drilling template, a fixed drill sleeve, a positioning boss with holes, a main positioning pin, a main support platform, an auxiliary support platform, an L-shaped pressure plate with holes, a column, a fastening nut, a clamping bolt, a positioning pin, an L-shaped pressure plate, an adjustable drill sleeve, a lever and a support rod. The present invention has high processing accuracy. The device can be used to position through the processed holes and the reference surface of the casting. The processing rigidity is improved through multiple auxiliary supports to prevent processing deformation, thereby improving the drilling accuracy and efficiency of the parts. The drilling device has a simple structure, is easy to operate, and has low manufacturing and maintenance costs. It is suitable for mass production and significantly improves production efficiency.
Description
Technical Field
The invention belongs to the technical field of machining, and particularly relates to a drilling device and a drilling method for rocker arm parts.
Background
As shown in fig. 1, the aircraft is an important structural part, and the machining precision of the part plays an important role in the function. The part is made of cast steel materials, has a complex space structure, multiple space sizes and high dimensional precision and position precision of part of the matching surfaces, achieves H8-level precision, and particularly has the relative position precision of holes a, b and c shown in fig. 2, and if the design requirement is not met, the matching quality is seriously affected. Meanwhile, when the product is a casting, the quality of a non-processing surface is unstable, the whole size is small, a reliable positioning surface is difficult to determine, and meanwhile, when the product is processed, an assembling clamp is often adopted, the assembling period of the assembling clamp is long, and the assembling clamp is heavy and is not beneficial to high-efficiency production, so that the part is often scrapped in batches or in batches due to the existence of the factors when being processed.
Disclosure of Invention
In order to solve the problems in the prior art, the invention designs a special drilling device which can rapidly complete the clamping and positioning of rocker arm parts and processing, thereby ensuring the processing precision.
The invention adopts the technical scheme that:
A drilling device for rocker arm parts comprises a base 1, a drill plate 2, a fixed drill bushing 3, a positioning boss 4 with holes, a main positioning pin 5, a main supporting table 6, an auxiliary supporting table 7, an L-shaped pressing plate 8 with holes, a stand column 9, a fastening nut 10, a compression bolt 11, a positioning pin 12, an L-shaped pressing plate 13, an adjustable drill bushing 14, a deflector rod 15 and a supporting rod 16.
The base 1 is of a steel structure, is of a square structure as a whole, is used as a supporting and mounting platform of all parts, and is provided with a plurality of bolt holes for mounting and fastening and positioning blind holes for positioning.
The drill plate 2 is shown in the structure form of figure 9, a mounting hole 2-3 for mounting an adjustable drill sleeve 14 is formed in the drill plate, a sinking 2-1 is formed in the position, which is lower than the drill plate 2, of the drill plate and used for over-restraining during part mounting, a boss 2-2 is arranged in the middle of the drill plate 2, and a through hole 2-4 used for avoiding a drill bit during processing and a bolt hole 2-5 used for mounting an auxiliary supporting table 7 are formed in the middle of the drill plate.
The fixed drill bushing 3 is arranged in the holes 2-6 on the drill plate 2 and is used for guiding a drill bit during drilling.
The positioning boss 4 with the hole is in a stepped shaft shape, the small diameter end of the positioning boss 4 with the hole is fixedly arranged on the base 1, and the large diameter end of the positioning boss 4 with the hole is provided with a pin hole for installing the main positioning pin 5, so that the positioning effect on the rocker part hole c is achieved.
The main support table 6 is in a stepped shaft shape, the small diameter end of the main support table is provided with threads, the main support table is screwed into the bolt hole of the base 1, and the height of the Q surface on the rocker arm can be adjusted through screwing, so that the rigidity of the rocker arm during drilling is improved, and deformation is prevented.
The auxiliary supporting table 7 is in a stepped shaft shape, the small diameter end of the auxiliary supporting table is provided with threads, the auxiliary supporting table is screwed into the bolt holes 2-5 on the drilling template 2, the height of the P surface supported on the rocker arm can be adjusted through screwing, the rigidity of the rocker arm during drilling is improved, and deformation is prevented.
The clamping device comprises a group of clamping devices, wherein the clamping devices are formed by a perforated L-shaped pressing plate 8, an upright post 9 and a fastening nut 10, the upright post 9 is a two-section cylindrical piece with threads, one end of the cylindrical piece is fixedly connected with a bolt hole on the base 1, the other end of the cylindrical piece penetrates through a through hole on the perforated L-shaped pressing plate 8 and is connected with the fastening nut 10, the perforated L-shaped pressing plate 8 is tightly clamped on the L surface of a rocker arm, and a rectangular hole is formed in the perforated L-shaped pressing plate 8 and used for a drill bit to penetrate through during drilling.
The L-shaped pressing plate 13, the upright post 9 and the fastening nut 10 form another group of pressing devices, one end of the upright post 9 is fastened and connected with a bolt hole on the base 1, and the other end of the upright post passes through the L-shaped pressing plate 13 and is connected with the fastening nut 10, so that the L-shaped pressing plate 13 is pressed and arranged on the S surface of the rocker arm, and the position of the rocker arm is prevented from moving when drilling.
The compression bolt 11 compresses tightly the bushing plate 2 and sets up on base 1, locating pin 12 passes the pinhole of bushing plate 2 lower extreme and gets into the pinhole on the base 1, plays the positioning action, prevents because the use leads to the position change of bushing plate 2, improves the precision.
The adjustable drill bushing 14 is a replaceable drill bushing, and for other rocker arm parts with the same structure and only different heights, as shown in fig. 1, the drill bushing with the corresponding length can be replaced according to the difference of the height H, so that the accuracy and stability of drilling can be ensured.
The deflector rod 15 is an elongated rod-shaped part and is used for adjusting the supporting height of the main supporting table 6 or the auxiliary supporting table 7, so that the operation is convenient.
The supporting rod 16 is arranged at the lower part of the base 1 and is used for supporting an operation platform, so that the drilling process is more comfortable and convenient.
The method for drilling by adopting the drilling device comprises the following steps:
(1) And installing the rocker arm part to be processed on a positioning device, at the moment, fitting the Y surface of the rocker arm part with the upper surface of the positioning boss 4 with holes, penetrating the main positioning pin 5 into the central hole of the positioning boss 4 with holes through the holes c of the rocker arm part, and leaning against the vertical surface of the drill jig plate 2 on the N surface of the rocker arm part to limit circumferential rotation.
(2) The heights of the main supporting table 6 and the auxiliary supporting table 7 are respectively adjusted through the deflector rod 15, so that the main supporting table and the auxiliary supporting table are respectively fixed on the Q surface and the P surface of the rocker arm piece, and the overall machining rigidity is improved.
(3) The pressing device formed by the L-shaped pressing plate 8 with holes, the upright post 9 and the fastening nut 10 is pressed and arranged on the L surface of the rocker arm member, and the pressing device formed by the L-shaped pressing plate 13, the upright post 9 and the fastening nut 10 is pressed and arranged on the S surface of the rocker arm member. The tightening is accomplished by tightening the nut 10 to effect the tightening operation.
(4) The holes a and b are machined under a common bench drill, respectively.
The beneficial effects of the invention are as follows:
1) The device can be used for positioning through the machined hole c and the casting datum plane N, machining rigidity is improved through a plurality of auxiliary supports, machining deformation is prevented, and drilling precision and efficiency of parts are improved.
2) The drilling device has the advantages of simple structure, convenient operation, low manufacturing and maintenance cost, suitability for mass production and remarkable improvement of production efficiency.
Drawings
Fig. 1 is a schematic structural view of a rocker arm member to be machined, wherein (a) is a front view, and (b) is a top view.
Fig. 2 is a perspective view of a rocker member to be machined.
Fig. 3 is a schematic view of the construction of the rocker arm mounted on the drilling device.
Fig. 4 is a front view of the drilling apparatus.
Fig. 5 is a top view of the drilling apparatus.
Fig. 6 is a schematic view of the front side structure of the drilling device (concealing the hold-down device and the part to be machined).
Fig. 7 is a schematic view of the back side structure of the drilling device (concealing the hold-down device and the part to be machined).
Fig. 8 is a schematic view of the installation of the rocker arm on the drilling device (hidden hold down device).
Fig. 9 is a diagram of the drill plate structure.
In the figure, a base, a drilling template, a fixed drilling sleeve, a locating boss with holes 4, a main locating pin 5, a main supporting table 6, an auxiliary supporting table 7, an L-shaped pressing plate with holes 8, a column 9, a fastening nut 10, a pressing bolt 11, a locating pin 12, a L-shaped pressing plate 13, an adjustable drilling sleeve 14, a shifting lever 15, a supporting rod 16, a sinking 2-1, a boss 2-2, a mounting hole 2-3, a through hole 2-4, a bolt hole 2-5 and a hole 2-6 are arranged.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings and technical schemes.
It should be understood that the drawings are not to scale but are merely drawn appropriately to illustrate various features of the basic principles of the invention. Specific design features of the invention disclosed herein, including for example, specific dimensions, orientations, positions, and configurations, will be determined in part by the specific intended application and use environment. In the drawings, like or equivalent parts (elements) are referred to by like reference numerals.
A drilling device for rocker arm parts comprises a base 1, a drill plate 2, a fixed drill bushing 3, a positioning boss 4 with holes, a main positioning pin 5, a main supporting table 6, an auxiliary supporting table 7, an L-shaped pressing plate 8 with holes, a stand column 9, a fastening nut 10, a compression bolt 11, a positioning pin 12, an L-shaped pressing plate 13, an adjustable drill bushing 14, a deflector rod 15 and a supporting rod 16. When drilling, the following steps are adopted:
(1) And installing the rocker arm part to be processed on a positioning device, at the moment, fitting the Y surface of the rocker arm part with the upper surface of the positioning boss 4 with holes, penetrating the main positioning pin 5 into the central hole of the positioning boss 4 with holes through the holes c of the rocker arm part, and leaning against the vertical surface of the drill jig plate 2 on the N surface of the rocker arm part to limit circumferential rotation.
(2) According to the characteristic of inconsistent surface heights of castings, the heights of the main supporting table 6 and the auxiliary supporting table 7 are respectively adjusted through the deflector rod 15, so that the heights are respectively fixed on the Q surface and the P surface of the rocker arm piece, and the overall machining rigidity is improved.
(3) The pressing device formed by the L-shaped pressing plate 8 with holes, the upright post 9 and the fastening nut 10 is pressed and arranged on the L surface of the rocker arm member, and the pressing device formed by the L-shaped pressing plate 13, the upright post 9 and the fastening nut 10 is pressed and arranged on the S surface of the rocker arm member. The tightening is accomplished by tightening the nut 10 to effect the tightening operation.
(4) The holes a and b are machined under a common bench drill, respectively.
(5) When the rocker arm members to be drilled with different heights H are to be replaced, in order to ensure a good guiding action of the drill bushing, and to prevent the drill from being deflected, it is necessary to replace the height-adjustable drill bushing 14, and then complete the drilling process according to the above steps.
Claims (8)
1. The drilling device for the rocker arm part is characterized by comprising a base (1), a drill plate (2), a fixed drill bushing (3), a perforated positioning boss (4), a main positioning pin (5), a main supporting table (6), an auxiliary supporting table (7), a perforated L-shaped pressing plate (8), a stand column (9), a fastening nut (10), an L-shaped pressing plate (13) and an adjustable drill bushing (14);
The base (1) is a supporting and mounting platform of all parts, and is provided with a plurality of bolt holes for mounting and fastening and positioning blind holes for positioning;
the drill jig plate (2) is arranged on the base (1), the top of the drill jig plate is provided with an adjustable drill sleeve (14), a sunken part (2-1) is arranged at a position, which is close to the lower part, of the drill jig plate (2) and used for over-constraint during part installation, and a boss (2-2) is arranged at the middle part of the drill jig plate (2);
the fixed drill sleeve (3) is arranged on the drill plate (2) and is used for guiding a drill bit during drilling;
the positioning boss (4) with the hole is in a stepped shaft shape, the small diameter end of the positioning boss is fixedly arranged on the base (1), and the large diameter end of the positioning boss is provided with a pin hole for mounting the main positioning pin (5) to play a role in positioning the rocker part hole c;
the main support table (6) is in a stepped shaft shape, the small diameter end of the main support table is provided with threads, the main support table is screwed into a bolt hole of the base (1), and the height of the Q surface supported on the rocker arm part is adjusted through screwing;
The auxiliary supporting table (7) is in a stepped shaft shape, the small diameter end of the auxiliary supporting table is provided with threads, the auxiliary supporting table is arranged on a boss (2-2) of the drill plate (2), and the height of the P surface supported on the rocker arm part is adjusted through screwing;
The device comprises a base (1), a perforated L-shaped pressing plate (8), an upright post (9) and a fastening nut (10), wherein the upright post (9) is a group of pressing devices, the upright post is two sections of cylindrical parts with threads, one end of each cylindrical part is fixedly connected with a bolt hole on the base (1), the other end of each cylindrical part passes through a through hole on the perforated L-shaped pressing plate (8) and is connected with the fastening nut (10), and the perforated L-shaped pressing plate (8) is pressed and arranged on the L surface of the rocker arm part;
The L-shaped pressing plate (13), the upright post (9) and the fastening nut (10) form another group of pressing devices, one end of the upright post (9) is fastened and connected with a bolt hole on the base (1), the other end of the upright post passes through the L-shaped pressing plate (13) to be connected with the fastening nut (10), and the L-shaped pressing plate (13) is pressed and arranged on the S surface of the rocker arm part.
2. Drilling device for rocker arm parts according to claim 1, characterized in that it further comprises a deflector rod (15), said deflector rod (15) being an elongated rod-shaped part for adjusting the support height of the main or auxiliary support table.
3. Drilling device for rocker arm parts according to claim 1 or 2, characterized in that the drilling device further comprises a support bar (16), which support bar (16) is arranged in the lower part of the base (1) for supporting the operating platform.
4. Drilling device for rocker arm parts according to claim 1 or 2, characterized in that the drill plate (2) is pressed and arranged on the base (1) through a pressing bolt (11), and a positioning pin (12) passes through a pin hole at the lower end of the drill plate (2) and enters the pin hole on the base (1) to play a role in positioning.
5. A drilling device for rocker arm parts according to claim 3, characterized in that the drill plate (2) is pressed and arranged on the base (1) through a pressing bolt (11), and the positioning pin (12) passes through a pin hole at the lower end of the drill plate (2) to enter the pin hole on the base (1) to play a role in positioning.
6. The drilling device for rocker arm parts according to claim 1, 2 or 5, wherein the boss (2-2) is provided with a through hole for avoiding a drill bit during machining, and the L-shaped pressing plate (8) with the hole is provided with a rectangular hole for allowing the drill bit to pass through during drilling.
7. A drilling device for rocker arm parts according to claim 1, 2 or 5, characterized in that the adjustable drill bushing (14) is adapted to change the drill bushing of corresponding length according to the height of the rocker arm part, ensuring the accuracy and stability of the drilling.
8. A method of drilling with a drilling device according to any one of claims 1-7, characterized in that the method comprises the steps of:
The method comprises the steps that firstly, a rocker arm part to be processed is installed on a positioning device, at the moment, the Y face of the rocker arm part is attached to the upper surface of a positioning boss (4) with holes, a main positioning pin (5) penetrates through a hole c of the rocker arm part to enter a central hole of the positioning boss (4) with holes, and the N face of the rocker arm part leans against the vertical face of a drill jig plate (2) to limit circumferential rotation;
Step two, the heights of the main supporting table (6) and the auxiliary supporting table (7) are respectively adjusted through a deflector rod (15), so that the main supporting table and the auxiliary supporting table are respectively fixed on the Q surface and the P surface of the rocker arm part, and the overall machining rigidity is improved;
The third step is that the pressing device formed by the L-shaped pressing plate (8) with holes, the upright post (9) and the fastening nut (10) is pressed and arranged on the L surface of the rocker arm part, and the pressing device formed by the L-shaped pressing plate (13), the upright post (9) and the fastening nut (10) is pressed and arranged on the S surface of the rocker arm part;
and fourthly, respectively finishing the processing of the holes a and b under the drilling of a common bench.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310935304.6A CN116765468B (en) | 2023-07-28 | 2023-07-28 | Drilling device and method for rocker arm parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310935304.6A CN116765468B (en) | 2023-07-28 | 2023-07-28 | Drilling device and method for rocker arm parts |
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| Publication Number | Publication Date |
|---|---|
| CN116765468A CN116765468A (en) | 2023-09-19 |
| CN116765468B true CN116765468B (en) | 2025-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310935304.6A Active CN116765468B (en) | 2023-07-28 | 2023-07-28 | Drilling device and method for rocker arm parts |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119387648B (en) * | 2024-10-29 | 2025-11-04 | 昌河飞机工业（集团）有限责任公司 | A tooling for drilling and boring multiple precision holes |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN104708079A (en) * | 2015-03-26 | 2015-06-17 | 沈阳飞机工业（集团）有限公司 | Tool fixture with various-plane angle holes and processing method for angle hole |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6296222B1 (en) * | 2000-05-26 | 2001-10-02 | Unisorb Inc. | Machinery mount anchor base fixture |
| US7976252B2 (en) * | 2006-05-31 | 2011-07-12 | Black & Decker Inc. | Pocket hole jig tool system |
| CN105057748B (en) * | 2015-09-14 | 2017-07-14 | 沈阳飞机工业（集团）有限公司 | Lock body drills and reams unitary clip and drill reaming method |
| CN208556083U (en) * | 2018-05-29 | 2019-03-01 | 沈阳飞机工业（集团）有限公司 | Support arm part deflection auricle hole machined and detection common fixture |
| CN209363672U (en) * | 2018-09-30 | 2019-09-10 | 江西远成汽车技术股份有限公司 | Leading arm support frame drilling die |
| CN217668069U (en) * | 2022-07-29 | 2022-10-28 | 沈阳飞机工业（集团）有限公司 | Auxiliary positioning device for rocker arm parts |
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2023
- 2023-07-28 CN CN202310935304.6A patent/CN116765468B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104708079A (en) * | 2015-03-26 | 2015-06-17 | 沈阳飞机工业（集团）有限公司 | Tool fixture with various-plane angle holes and processing method for angle hole |
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| CN116765468A (en) | 2023-09-19 |
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