CN215919120U - Double-sided scribing numerical control drilling machine for machining steel bridge member - Google Patents
Double-sided scribing numerical control drilling machine for machining steel bridge member Download PDFInfo
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- CN215919120U CN215919120U CN202121073401.1U CN202121073401U CN215919120U CN 215919120 U CN215919120 U CN 215919120U CN 202121073401 U CN202121073401 U CN 202121073401U CN 215919120 U CN215919120 U CN 215919120U
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Abstract
The utility model relates to a numerical control drilling machine for controlling precision between a hole group and a rod piece and between the hole group and the hole group by adopting the numerical control drilling machine, which is used for machining a steel bridge member and comprises a double-sided numerical control drilling machine, wherein a transverse pushing system is positioned on a platform between the double-sided numerical control drilling machine through a mechanical fixing device and is used for adjusting the transverse position of the steel bridge member positioned on the transverse pushing system, a numerical control hydraulic support system is positioned on the platform between the double-sided numerical control drilling machine and is used for accurately adjusting the height of the member, and a laser scribing device and a numerical control drill bit are respectively arranged on the opposite surface of the double-sided numerical control drilling machine from top to bottom. The advantages are that: a brand-new component hole group precision control technology, namely a marking and drilling integrated technology is formed, the technology can improve the position relation precision of the bolt hole group of the steel bridge component, and can also ensure the manufacturing quality of the steel bridge component, thereby ensuring the field connection relation and the bridge forming line shape of the component.
Description
Technical Field
The utility model relates to a numerical control drilling machine for double-sided scribing for machining a steel bridge member, which controls the precision between a hole group and a rod piece and between the hole group and the hole group by adopting the numerical control drilling machine.
Background
The steel bridge has the unique advantages of high bearing capacity, large spanning capacity and attractive appearance, and becomes the main development trend of large bridges. The steel bridge member has the characteristics of smaller member, convenient transportation and the like, and can adapt to harsh transportation conditions in mountainous areas, so that the steel bridge becomes a preferred scheme for constructing large-span or mountainous area bridges. For steel bridges, the accuracy of the hole group of the member is the most important control item, the field installation quality of a bridge position is influenced, and the bridge forming line shape of the bridge is also determined. In the past, the steel bridge member is mainly scribed by operating workers, but the feasibility is low, the error is large, however, with the continuous development of the society, workers with high skill scribing levels are less and less, although advanced equipment such as a numerical control drilling machine is widely applied, the existing numerical control drilling machine cannot control the precision relation between a hole group and a rod piece, and between the hole group and the hole group, and the manufacturing quality of the steel bridge member is influenced.
Disclosure of Invention
The design purpose is as follows: the double-sided marking numerical control drilling machine for machining the steel bridge member is designed to be capable of organically combined with the numerical control drilling machine, so that the component placing position can be quickly and accurately adjusted, and the longitudinal and transverse base lines of the component can be marked.
The design scheme is as follows: in order to achieve the design objectives of the present invention. The utility model is based on the prior double-sided numerical control drilling machine:
1. designing the steel beam component position adjusting device, the device combines together with two-sided digit control machine tool and constitutes a steel bridge member processing with two-sided ruling's numerically-controlled drilling machine:
the adjusting device is arranged on a platform in the middle of a numerically controlled drilling machine and comprises a transverse pushing system, a numerically controlled hydraulic supporting system, a mechanical fixing device, a weight block and the like;
the transverse pushing system can adjust the transverse position of the component, and ensure that the component is parallel to the numerically-controlled drilling machine, so that the drilling deviation in a horizontal plane is reduced;
the hydraulic support system can accurately adjust the height of the component, and the mechanical fixing device is mainly used for supporting and fixing the component after the height of the component is adjusted in place, so that the displacement of the rod piece in the drilling process is prevented;
the ballast weight is mainly placed on the top of the component after the component is adjusted in place, and is used for avoiding influence on drilling precision due to mechanical vibration when the component is placed in a drilling hole.
2. Controlling the hole group of the steel bridge member:
correcting a longitudinal and transverse baseline after a steel bridge member is manufactured, and using the corrected longitudinal and transverse baseline as a reference target of a numerical control drilling position;
in order to improve the position relation of the component hole group, a laser scribing device is added on the double-sided numerical control drilling machine, and a hole group position relation control method integrating scribing and drilling is formed;
thirdly, marking the longitudinal and transverse base lines and the contour characteristic points of the component by a laser marking device after the component is adjusted in place;
after the baseline position is detected to be qualified, the bolt holes in the component are drilled through the double-sided numerically-controlled drilling machine.
Compared with the background technology, the utility model forms a brand-new component hole group precision control technology, namely a marking and drilling integrated technology, and the technology can improve the position relation precision of the bolt hole group of the steel bridge component and ensure the manufacturing quality of the steel bridge component, thereby ensuring the field connection relation and the bridge line forming of the component.
Drawings
FIG. 1 is a schematic diagram of a position adjusting device for a steel bridge member, wherein 1-1 represents a platform in the middle of a double-sided numerically controlled drilling machine, 1-2 represents a numerically controlled hydraulic support system, 1-3 represents a mechanical fixing device, and 1-4 represents a transverse pushing system.
FIG. 2 is a schematic diagram of key equipment for controlling the accuracy of a steel bridge member hole group, wherein 2-1 represents a double-sided numerically controlled drilling machine, 2-2 represents a laser scribing device (laser scriber), and 2-3 represents a numerically controlled drill bit.
FIG. 3 is a schematic diagram of a steel bridge member hole group precision control technology, wherein 3-1 represents a steel bridge member, 3-2 represents a longitudinal and transverse base line on the member, 3-3 represents a bolt hole group, and 3-4 represents a weight block.
FIG. 4 is a schematic view of a steel bridge member after drilling is completed.
Detailed Description
Example 1: reference is made to fig. 1-4. A double-sided scribing numerically-controlled drilling machine for machining a steel bridge member comprises a double-sided numerically-controlled drilling machine 2-1, a transverse pushing system 1-4 is located on a platform 1-1 between the double-sided numerically-controlled drilling machine 2-1 through a mechanical fixing device 1-3 and used for adjusting the transverse position of the steel bridge member 3-1 located on the transverse pushing system, a numerically-controlled hydraulic supporting system 1-2 is located on the platform 1-1 between the double-sided numerically-controlled drilling machine 2-1 and used for accurately adjusting the height of the member, and a laser scribing device 2-2 and a numerically-controlled drill bit 2-3 are respectively arranged on the opposite surfaces of the double-sided numerically-controlled drilling machine 2-1 from top to bottom.
The double-sided numerical control drilling machine 2-1 is provided with a laser scribing device 2-2, so that scribing and drilling are integrated.
The transverse pushing systems 1-4 are in L-shaped structures formed by welding horizontal steel plates and end steel plates.
The numerical control hydraulic support system 1-2 is a hydraulic jack which can be directly purchased.
The mechanical fixing device 1-3 is a support pier formed by welding a steel plate and profile steel.
The method for controlling the precision of the steel bridge member hole group comprises the following steps of 2-1:
step 1: a transverse pushing system 1-4, a numerical control hydraulic support system 1-2 and a mechanical fixing device 1-3 are arranged on a platform 1-1 between double-sided numerical control drilling machines, and the installation precision of each device needs to be ensured.
Step 2: a laser scribing device 2-2 is added on a double-sided numerical control drilling machine 2-1, and a scribing and drilling integrated drilling technology is formed.
And 3, step 3: after the steel bridge member is qualified, the member is placed on a mechanical fixing device 1-3, and the required position deviation is less than or equal to 10 mm.
And 4, step 4: the transverse position of the component is accurately adjusted through the transverse pushing system 1-4, so that the deviation of the transverse distance from the two ends of the component to the numerically-controlled drilling machine is smaller than or equal to 1 mm.
And 5, step 5: accurately adjusting the elevation position of the member by using a numerical control hydraulic support system 1-2 to ensure that the height difference of two ends of the member is less than or equal to 1 mm; the position of the member is locked with a mechanical fixing device 1-3.
And 6, step 6: and the weight 3-4 is arranged in the middle of the component to prevent the component from mechanical vibration in the drilling process so as to avoid the phenomenon of large aperture deviation.
And 7, step 7: after the component is adjusted in position, the laser scribing device 2-2 is used for scribing the outline characteristic points of the component, and the longitudinal and transverse datum lines 3-2 of the component hole group position are scribed by taking the outline characteristic points as the datum.
And 8, step 8: and simultaneously drilling bolt holes on two sides of the component by using a drill 2-3 on a double-sided numerical control drilling machine on the basis of the longitudinal and transverse datum lines of the component.
Step 9: after the bolt holes on the two sides of the component are drilled, other bolt holes are drilled by a radial drilling machine (figure 4).
It is to be understood that: although the above embodiments have described the design idea of the present invention in more detail, these descriptions are only simple descriptions of the design idea of the present invention, and are not limitations of the design idea of the present invention, and any combination, addition, or modification without departing from the design idea of the present invention falls within the scope of the present invention.
Claims (3)
1. A numerical control drilling machine with double-sided scribing for machining a steel bridge member comprises a double-sided numerical control drilling machine (2-1), and is characterized in that a transverse pushing system (1-4) is located on a platform (1-1) between the double-sided numerical control drilling machine (2-1) through a mechanical fixing device (1-3) and used for adjusting the transverse position of the steel bridge member (3-1) located on the transverse pushing system, a numerical control hydraulic support system (1-2) is located on the platform (1-1) between the double-sided numerical control drilling machine (2-1) and used for accurately adjusting the height of the member, and a laser scribing device (2-2) and a numerical control drill bit (2-3) are respectively arranged on the opposite surfaces of the double-sided numerical control drilling machine (2-1) from top to bottom;
1) the transverse pushing system (1-4) is in an L-shaped structure formed by welding a horizontal steel plate and an end steel plate, a jack is placed on the horizontal plate during pushing, the position of a component is accurately adjusted through the jack, and the end steel plate provides a reaction force;
2) the numerical control hydraulic support system (1-2) is a hydraulic jack which can be directly purchased; after the height of the component is accurately adjusted, the height of the component is adjusted on a mechanical fixing device (1-3) through a machined steel gasket;
3) the mechanical fixing device (1-3) is a support pier formed by welding a steel plate and profile steel.
2. The numerical control drilling machine with double-sided scribing for machining the steel bridge member according to claim 1, wherein: and the double-sided numerical control drilling machine (2-1) is provided with a laser scribing device (2-2).
3. The numerical control drilling machine with double-sided scribing for machining the steel bridge member according to claim 1, wherein: the transverse pushing system (1-4) is in an L-shaped structure formed by welding a horizontal steel plate and an end steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121073401.1U CN215919120U (en) | 2021-05-19 | 2021-05-19 | Double-sided scribing numerical control drilling machine for machining steel bridge member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121073401.1U CN215919120U (en) | 2021-05-19 | 2021-05-19 | Double-sided scribing numerical control drilling machine for machining steel bridge member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215919120U true CN215919120U (en) | 2022-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121073401.1U Active CN215919120U (en) | 2021-05-19 | 2021-05-19 | Double-sided scribing numerical control drilling machine for machining steel bridge member |
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|---|---|
| CN (1) | CN215919120U (en) |
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2021
- 2021-05-19 CN CN202121073401.1U patent/CN215919120U/en active Active
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