CN222288903U - Drilling flange and key slot debugging device for crankshaft machining - Google Patents
Drilling flange and key slot debugging device for crankshaft machining Download PDFInfo
- Publication number
- CN222288903U CN222288903U CN202420135219.1U CN202420135219U CN222288903U CN 222288903 U CN222288903 U CN 222288903U CN 202420135219 U CN202420135219 U CN 202420135219U CN 222288903 U CN222288903 U CN 222288903U
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- crankshaft
- flange shaft
- flange
- debugging
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- 238000003754 machining Methods 0.000 title claims abstract description 22
- 238000005553 drilling Methods 0.000 title claims abstract description 18
- 238000003801 milling Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 18
- 239000002699 waste material Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to the field of marine crankshafts, and provides a drilling flange and keyseat debugging device for crankshaft machining, which comprises a front flange shaft head, wherein the front flange shaft head is detachably connected with a crankshaft connecting part through a first inner cone groove and a first outer cone, and the crankshaft connecting part is detachably connected with a rear flange shaft head through a second inner cone groove and a second outer cone; the end of the front flange shaft head, which is far away from the crankshaft connecting part, and the end of the rear flange shaft head, which is far away from the crankshaft connecting part, are respectively and detachably connected with an end cover, and the end cover is connected with a machine tool center through an end cover center hole. The whole crankshaft cannot be wasted in the debugging process of the flange and the keyseat, batch debugging can be realized, the cost is saved, and the efficiency is improved.
Description
Technical Field
The utility model relates to the field of marine crankshafts, in particular to a drilling flange and key slot debugging device for crankshaft machining.
Background
The crankshaft is usually made of a strip-shaped irregular metal material and provided with a plurality of cranks and main shaft bearing supporting points, the manufacturing and processing of the crankshaft are complex processes, and usually involve multiple steps such as casting, forging, precision machining and the like, wherein the steps of drilling the flange and the keyways are two processing processes, and each step of drilling the flange and the keyways of the crankshaft is provided with a corresponding special fixture for clamping and positioning, so that the flange and the keyways of the semi-finished crankshaft needing to be replaced are required to be debugged in the process of replacing the crankshaft. However, because the flange wire hole has the position degree requirement, the clamp of the product to be changed is required to be installed on the machine tool during the changing, because the clamp belongs to reinstallation, the clamp is very easy to debug for a plurality of times because of unqualified position degree, the semi-finished crankshaft becomes waste, and the workbench for installing the clamp can not be firmly fixed after the clamp is installed because of frequent screwing and unscrewing, so that the size of a crankshaft keyseat deviates, the quality of the crankshaft is problematic, the whole crankshaft also becomes waste, and the length of a certain marine crankshaft is more than 1 meter, so that the production cost is increased to a certain extent.
Disclosure of utility model
In order to solve the problems in the background art, the utility model provides a drilling flange and key slot debugging device for crankshaft machining, and provides the flange and key slot debugging device which is reasonable in structure, simple to manufacture and capable of being replaced quickly, the whole crankshaft is not wasted in the debugging process, batch debugging can be realized, the cost is saved, and the efficiency is improved.
In order to achieve the above purpose, the present utility model adopts the following scheme:
A drilling flange debugging device for crankshaft machining comprises a front flange shaft head, wherein a crankshaft connecting portion is detachably connected to the front flange shaft head through a first inner conical groove and a first outer conical body, a rear flange shaft head is detachably connected to the crankshaft connecting portion through a second inner conical groove and a second outer conical body, the first inner conical groove is formed in the front flange shaft head or is formed in one end, connected with the front flange shaft head, of the crankshaft connecting portion, matched with the first inner conical groove, the first outer conical body is formed in one end, connected with the front flange shaft head, of the crankshaft connecting portion or is formed in the front flange shaft head, the second inner conical groove is formed in the rear flange shaft head or is formed in one end, connected with the rear flange shaft head, of the crankshaft connecting portion, matched with the second inner conical groove, and the second outer conical body is formed in one end, connected with the rear flange shaft head, of the crankshaft connecting portion or is formed in the rear flange shaft head.
Further, the first inner taper groove section and the second inner taper groove section are arranged in a small and large way.
Further, the first inner cone groove and the first outer cone are fixed through the fixing piece, and the second inner cone groove and the second outer cone are fixed through the fixing piece.
Further, one end, far away from the crankshaft connecting portion, of the front flange shaft head is provided with a first counter bore used for fixing the fixing piece, and one end, far away from the crankshaft connecting portion, of the rear flange shaft head is provided with a second counter bore used for fixing the fixing piece.
A milling key groove debugging device for bent axle processing, preceding flange spindle nose keep away from the one end of bent axle connecting portion and back flange spindle nose keep away from the one end of bent axle connecting portion is detachable respectively and is connected with the end cover, the end cover is connected with the lathe top through the end cover centre bore, be equipped with flange hole of flange debugging post-processing on preceding flange spindle nose and the back flange spindle nose respectively, be equipped with on the end cover with flange hole complex hole, the hole pass through the bolt with the flange hole is connected.
Further, a spigot is arranged on the end face, facing the fixing piece, of the end cover, and the spigot, the first counter bore, the second counter bore and the center hole of the end cover are coaxially arranged.
Further, the end cover center hole is in a conical shape and is obliquely arranged from one end face of the end cover to the spigot.
The crankshaft connecting part in the embodiment has the beneficial effects that the front flange shaft head and the rear flange shaft head are detachably connected through the inner conical groove and the outer conical body, so that a detachable substitute crankshaft, namely a flange debugging device, is formed to reduce the waste of the whole crankshaft, and the front flange shaft head and the rear flange shaft head which need to be debugged can be replaced on a workbench for multiple times. And the device after flange debugging can continue to carry out the debugging of keyseat milling process after fixing the end cover, and is convenient and simple, can debug many times until after the debugging is qualified, directly can process the normal bent axle of this process, has practiced thrift the cost, has improved efficiency.
Drawings
FIG. 1 is a schematic diagram of a semi-finished crankshaft construction;
FIG. 2 is a schematic diagram of a flange debugging device according to the present embodiment;
FIG. 3 is a schematic diagram of a key slot debugging device according to the present embodiment;
Fig. 4 is a schematic elevational view of the end cap.
In the drawing, the reference numerals are 1, a front flange shaft head, 2, a rear flange shaft head, 3, a crankshaft connecting part, 4, a fixing piece, 5, a first inner cone groove, 6, a first outer cone, 7, a first counter bore, 8, an end cover, 9, a flange hole, 10, a spigot, 11, a machine tool center, 12, a second inner cone groove, 13, a second outer cone, 14, a second counter bore, 15, an end cover center hole and 16, and a hole.
Detailed Description
In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
The utility model provides a drilling flange and key slot debugging device for crankshaft machining, which is a complex process for manufacturing and machining a crankshaft, wherein the drilling flange and the key slot are two machining procedures, a semi-finished crankshaft is generally required to be used for debugging at present, clamps of different crankshafts are different, the clamps or a workbench are often replaced for debugging for a plurality of times, each debugging wastes the semi-finished crankshaft, and the length of some crankshafts reaches about 1 meter, so that the production cost is increased. According to the embodiment, the integral semi-finished crankshaft is modified into the detachable substitute crankshaft to reduce waste of the whole crankshaft, the detachable substitute crankshaft is used as a flange and key groove debugging device for crankshaft machining, the part needing to be debugged can be replaced on the workbench for multiple times, and the device after flange debugging can continue to debug the key groove process, so that the method is convenient and simple, can be used for debugging for multiple times until the debugging is qualified, and can be directly machined on a normal crankshaft of the process, so that the cost is saved, and the efficiency is improved.
As shown in fig. 1-2, the present embodiment provides a drilling flange debugging device for crankshaft machining, which comprises a front flange shaft head 1, wherein the front flange shaft head 1 is detachably connected with a crankshaft connecting part 3 through a first inner cone groove 5 and a first outer cone 6, and the crankshaft connecting part 3 is detachably connected with a rear flange shaft head 2 through a second inner cone groove 12 and a second outer cone 13. As shown in fig. 1, the semi-finished crankshafts are broken at positions a and B to form a front end portion, a middle end portion and a rear end portion of the semi-finished crankshafts, wherein the front end portion is used as a parent body of the front flange shaft head 1 in the embodiment, the middle end portion is used as a parent body of the crankshaft connecting portion 3 in the embodiment, the rear end portion is used as a parent body of the rear flange shaft head 2 in the embodiment, and all parts of the device are consistent with the appearance and the shape of the parent body. The position A is the position of the front end journal of the semi-finished crankshaft close to the front end main journal, the position B is the position of the rear end journal of the semi-finished crankshaft close to the rear end main journal, and the position is selected, so that the clamping positioning standard of the debugging device and the semi-finished crankshaft debugging flange is unchanged, and parameters such as drilling depth and milling key groove position depth are consistent with those of the semi-finished crankshaft when the debugging device is used for debugging threaded holes and key grooves. Since the jig mainly fixes the middle end portion of the semi-finished crankshaft during the machining, the crankshaft connecting portion 3 is easily fixed to the table by the jig suitable for the semi-finished crankshaft when the flange drilling process is required. The crankshaft connecting part 3 is connected with the front flange shaft head 1 and the rear flange shaft head 2 through inner cone grooves or outer cones arranged at two ends to form a detachable substitute crankshaft, namely a flange debugging device. The front flange shaft head 1 and the rear flange shaft head 2 can be produced in batch as replaceable products, and in the debugging process, if the debugging of the shaft head flange at any end fails, the flange can be directly replaced on a workbench. The crankshaft connecting part 3 is always fixed on the workbench, so that the generation of waste debugging products due to the clamp is reduced, and the device is convenient and reliable. It should be understood that, according to the specific form of the machined crankshaft, it is determined whether the front axle head flange and the rear axle head flange are simultaneously arranged, if only one end of the crankshaft needs to be provided with a flange, the flange debugging device only sets one end of the flange axle head, and the crankshaft connecting part 3 is correspondingly adjusted.
The inner cone groove plays a guiding role in connecting the parts, can be accurately centered, and provides a certain assembly clearance. The outer cone can enable the connecting pieces to be tightly matched, provide a certain assembly clearance and a self-locking function, and can also provide larger contact area and stability. The sections of the first inner conical groove 5 and the second inner conical groove 12 are arranged in a small and large way, so that the tight fit and self-locking between the connecting pieces are facilitated.
The first inner cone groove 5 is arranged on the front flange shaft head 1 or on the end, connected with the front flange shaft head 1, of the crankshaft connecting portion 3, and is matched with the first inner cone groove 5, and the first outer cone 6 is arranged on the end, connected with the front flange shaft head 1, of the crankshaft connecting portion 3 or on the front flange shaft head 1. The second inner cone groove 12 is arranged on the rear flange shaft head 2 or on the end, connected with the rear flange shaft head 2, of the crankshaft connecting portion 3, and is matched with the second inner cone groove 12, and the second outer cone 13 is arranged on the end, connected with the rear flange shaft head 2, of the crankshaft connecting portion 3 or on the rear flange shaft head 2. The front flange shaft head 1 and the rear flange shaft head 2 are provided with inner cone grooves or outer cones mainly depending on the length of a flange to be drilled on the shaft head and the shape and structure of the shaft head, if the end face of the flange to be drilled is long enough and has no other structural interference, the flange to be drilled is preferably provided with the outer cones, and if the end face of the flange to be drilled is short or has other structural interference, the shaft head is provided with the inner cone grooves when the shaft head cannot be reformed into the outer cones. It should be understood that, as shown in fig. 2, the present embodiment adopts a combination of providing the first inner taper groove 5 on the front flange head 1 and providing the second inner taper groove 12 on the rear flange head 2, but is not limited to this combination.
The first inner cone 5 and the first outer cone 6 are fixed by the fixing member 4, and the second inner cone 12 and the second outer cone 13 are fixed by the fixing member 4. The end, far away from the crankshaft connecting portion 3, of the front flange shaft head 1 is provided with a first counter bore 7 used for fixing the fixing piece 4, and the end, far away from the crankshaft connecting portion 3, of the rear flange shaft head 2 is provided with a second counter bore 14 used for fixing the fixing piece 4. The fixing piece 4 can be fixed by bolts, and in order to be convenient for fixing the operation bolts, a first counter bore 7 and a second counter bore 14 are arranged at two ends of the device and are communicated with the outside.
As shown in fig. 3-4, the present solution also provides another embodiment, and the key slot debugging device for crankshaft processing is implemented based on the flange debugging device after flange debugging, and the specific solution is that an end cover 8 is detachably connected to one end of the front flange shaft head 1 away from the crankshaft connecting portion 3 and one end of the rear flange shaft head 2 away from the crankshaft connecting portion 3 respectively. It should be understood that some crankshafts may not need to have flanges at both ends, and the corresponding adjusting device is also provided with a flange head, and the keyseat adjusting device is also matched with only one end cover 8. The end cover 8 is connected with a machine tool center 11 through an end cover center hole 15, flange holes 9 which are processed after flange debugging are respectively formed in the front flange shaft head 1 and the rear flange shaft head 2, holes 16 which are matched with the flange holes 9 are formed in the end cover 8, the holes 16 are connected with the flange holes 9 through bolts, and the end cover 8 is fixed at the end parts of the front flange shaft head 1 and the rear flange shaft head 2. The spigot 10 is arranged on the end face, facing the fixing piece, of the end cover 8, the spigot 10, the first counter bore 7, the second counter bore 14 and the end cover center hole 15 are coaxially arranged, centering of the machine tool center 11 is facilitated, the end cover center hole 15 is tapered to the spigot 10, and the tapered machine tool center 11 is conveniently fixed. Before debugging, the crankshaft connecting part 3 needs to be fixed on a workbench for keyseat debugging, and if the keyseat debugging of the flange shaft head at any end fails, the workbench can be directly replaced without readjusting the clamp for fixing again.
The workflow using the device is as follows:
Firstly, a crankshaft connecting part 3 is fixed on a workbench through a proper clamp, a front flange shaft head 1 and a rear flange shaft head 2 which are not drilled are respectively and fixedly connected with the crankshaft connecting part 3, flange debugging is carried out, a new front flange shaft head 1 or a new rear flange shaft head 2 can be detached and replaced through bolts in the debugging process if a problem occurs, the debugging is qualified, and the front flange shaft head 1 and the rear flange shaft head 2 are directly processed on a normal semi-finished crankshaft of the procedure after the debugging is qualified. Fixing the flange debugging device after flange debugging on another machine tool fixture, fixing end covers 8 at the two ends of a front flange shaft head 1 and a rear flange shaft head 2, and performing a key slot milling debugging procedure after machine tool tips 11 at the two ends respectively prop up end cover center holes 15 of the front flange shaft head 1 and the rear flange shaft head 2, wherein the front flange shaft head 1 or the rear flange shaft head 2 is replaced until the debugging is failed until the debugging is qualified, and directly processing the flange debugging on a normal semi-finished product crankshaft of the procedure after the debugging is qualified.
The above detailed description of the embodiments of the present utility model has been given with reference to the accompanying drawings, but the present utility model is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the utility model, and yet fall within the scope of the utility model.
Claims (7)
1. The drilling flange debugging device for crankshaft machining is characterized by comprising a front flange shaft head (1), wherein the front flange shaft head (1) is detachably connected with a crankshaft connecting part (3) through a first inner conical groove (5) and a first outer conical body (6), and the crankshaft connecting part (3) is detachably connected with a rear flange shaft head (2) through a second inner conical groove (12) and a second outer conical body (13);
The first inner cone groove (5) is arranged on the front flange shaft head (1) or on one end of the crankshaft connecting part (3) connected with the front flange shaft head (1), and is matched with the first inner cone groove (5), and the first outer cone (6) is arranged on one end of the crankshaft connecting part (3) connected with the front flange shaft head (1) or on the front flange shaft head (1);
The second inner cone groove (12) is arranged on the rear flange shaft head (2) or on one end of the crankshaft connecting part (3) connected with the rear flange shaft head (2), is matched with the second inner cone groove (12), and the second outer cone (13) is arranged on one end of the crankshaft connecting part (3) connected with the rear flange shaft head (2) or on the rear flange shaft head (2).
2. The drilling flange debugging device for crankshaft machining according to claim 1, wherein the first inner conical groove (5) and the second inner conical groove (12) are arranged in a small and large mode.
3. A drilling flange debugging device for crankshaft machining according to claim 1, characterized in that the first inner cone groove (5) and the first outer cone (6) are fixed by a fixing piece (4), and the second inner cone groove (12) and the second outer cone (13) are fixed by a fixing piece (4).
4. A drilling flange debugging device for crankshaft machining according to claim 3, wherein a first counter bore (7) for fixing the fixing piece (4) is formed in one end, away from the crankshaft connecting portion (3), of the front flange shaft head (1), and a second counter bore (14) for fixing the fixing piece (4) is formed in one end, away from the crankshaft connecting portion (3), of the rear flange shaft head (2).
5. A milling key groove debugging device for crankshaft machining comprises the drilling flange debugging device for crankshaft machining according to any one of claims 1-4, and is characterized in that one end of a front flange shaft head (1) away from a crankshaft connecting portion (3) and one end of a rear flange shaft head (2) away from the crankshaft connecting portion (3) are respectively and detachably connected with an end cover (8), the end cover (8) is connected with a machine tool center (11) through an end cover center hole (15), flange holes (9) for flange debugging and post-machining are respectively formed in the front flange shaft head (1) and the rear flange shaft head (2), holes (16) matched with the flange holes (9) are formed in the end cover (8), and the holes (16) are connected with the flange holes (9) through bolts.
6. The key slot debugging device for crankshaft machining according to claim 5, wherein a spigot (10) is arranged on the end face, facing the fixing piece, of the end cover (8), and the spigot (10), the first counter bore (7), the second counter bore (14) and the end cover center hole (15) are coaxially arranged.
7. A key and groove adjusting device for crankshaft machining according to claim 6, wherein the end cover center hole (15) is tapered and is inclined from one end face of the end cover (8) to the spigot (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420135219.1U CN222288903U (en) | 2024-01-19 | 2024-01-19 | Drilling flange and key slot debugging device for crankshaft machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420135219.1U CN222288903U (en) | 2024-01-19 | 2024-01-19 | Drilling flange and key slot debugging device for crankshaft machining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222288903U true CN222288903U (en) | 2025-01-03 |
Family
ID=93972797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420135219.1U Active CN222288903U (en) | 2024-01-19 | 2024-01-19 | Drilling flange and key slot debugging device for crankshaft machining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222288903U (en) |
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2024
- 2024-01-19 CN CN202420135219.1U patent/CN222288903U/en active Active
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