CN210649631U - Fixing device for processing exhaust elbow of diesel engine - Google Patents
Fixing device for processing exhaust elbow of diesel engine Download PDFInfo
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- CN210649631U CN210649631U CN201921726055.5U CN201921726055U CN210649631U CN 210649631 U CN210649631 U CN 210649631U CN 201921726055 U CN201921726055 U CN 201921726055U CN 210649631 U CN210649631 U CN 210649631U
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Abstract
The utility model relates to a fixing device for processing a diesel engine exhaust elbow, which comprises a bottom plate, a first fixing module and a second fixing module; the first fixing module comprises three fixing pieces, and the three fixing pieces comprise first studs, first nuts, first pressing blocks and first cushion blocks; the second fixing module comprises a positioning column, a front pressing block module, a rear pressing block module and two side pressing block modules. The utility model provides a fixing device for processing diesel engine exhaust elbow can fix two exhaust elbows of treating processing simultaneously at every turn, processes it, then exchanges the position, processes again, has improved production efficiency, and installs simply swiftly.
Description
Technical Field
The utility model relates to a diesel engine exhaust return bend processing technology field, especially a processing diesel engine exhaust fixing device for return bend.
Background
The working process of the diesel engine is the same as that of the gasoline engine, and each working cycle also undergoes four strokes of air intake, compression, work application and air exhaust. The diesel engine sucks pure air in an intake stroke. When the compression stroke is close to the end, the oil pressure of the diesel oil is increased to more than 10MPa through an oil injection pump, the diesel oil is injected into the cylinder through an oil injector, and the diesel oil is mixed with the compressed high-temperature air in a short time to form combustible mixed gas. Because the compression ratio of the diesel engine is high, the air pressure in the cylinder can reach 3.5-4.5 MPa at the end of compression, and the temperature is 750-1000K, which greatly exceeds the spontaneous combustion temperature of diesel oil. Therefore, after the diesel oil is injected into the cylinder, the diesel oil is mixed with the air in a short time and then is immediately ignited and combusted. The air pressure in the cylinder rises to 6-9 MPa rapidly, and the temperature also rises to 2000-2500K. Under the push of high-pressure gas, the piston moves downwards and drives the crankshaft to rotate to do work, and the waste gas is exhausted into the atmosphere through the exhaust pipe.
The exhaust elbow is an important part in the diesel engine, and in the preparation process of the exhaust elbow, a mounting hole needs to be processed at a corresponding part, so that a device is needed for fixing the exhaust elbow so as to facilitate effective processing. The fixing device in the prior art is complex to install, only one exhaust bent pipe to be processed can be fixed for processing during fixing at each time, and the production efficiency cannot be improved.
In view of the above, it is desirable to provide a fixture for machining an exhaust elbow of a diesel engine.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a processing diesel engine exhaust fixing device for return bend can fix two exhaust return bends of treating processing simultaneously at every turn, processes it, then exchanges the position, processes again, has improved production efficiency, and installs simply swiftly.
In order to achieve the purpose of the utility model, the fixing device for processing the exhaust elbow of the diesel engine comprises a bottom plate, a first fixing module and a second fixing module, wherein the upper surface of the bottom plate is a plane;
the first fixing module comprises three fixing pieces, and the three fixing pieces comprise first studs, first nuts, first pressing blocks and first cushion blocks; the first studs are vertically fixed on one side of the upper surface of the base plate, and on the upper surface of the base plate, the diameter of a circle passing through the centers of the three first studs is larger than the outer diameter of a flange seat to which the external exhaust bent pipe is fixed; the upper surface of the first pressing block is provided with a first through hole, the first pressing block is sleeved on the first stud through the first through hole, the first nut is in threaded connection with the first stud and is positioned above the first pressing block, and the first cushion block is placed on the upper surface of the bottom plate and is in contact with the lower surface of the first pressing block;
the second fixing module comprises a positioning column, a front pressing block module, a rear pressing block module and two side pressing block modules; the positioning column is vertically fixed in the middle of the other side of the upper surface of the bottom plate; the front pressing block module comprises a second stud, a second pressing block, a second cushion block and a second nut; the second stud is vertically fixed on the upper surface of the bottom plate and is positioned right in front of the positioning column; the upper surface of the second pressing block is provided with a second through hole, the second pressing block is sleeved on the second stud through the second through hole, the second nut is in threaded connection with the second stud and is positioned right above the second pressing block, and the second cushion block is placed on the upper surface of the bottom plate and is in contact with the lower surface of the second pressing block; the rear pressing block module comprises a fixed seat, two third cushion blocks, a connecting block, a third stud and a third nut; an arc-shaped concave surface is arranged on the side surface of the fixed seat, which is in contact with the exhaust bent pipe to be placed, and the arc-shaped concave surface is matched with the radian of the exhaust bent pipe to be placed; the two third cushion blocks are fixed at the two ends of the upper surface of the fixed seat, the connecting block is fixed at the upper part of the side surface of the fixed seat, a third through hole is formed in the side surface of the connecting block, the third stud penetrates through the third through hole, and the third nut is in threaded connection with the head of the third stud; the two lateral pressing block modules comprise fixing blocks, fourth studs and fourth nuts; the fixed blocks are vertically fixed on the upper surface of the bottom plate and positioned on two sides of the positioning column, and the distance between the two fixed blocks is larger than the outer diameter of the exhaust elbow to be fixed; and a fourth through hole is formed in the upper part of the side face of the fixing block, the fourth stud penetrates through the fourth through hole, and the fourth nut is in threaded connection with the head of the fourth stud.
Preferably, the tail part of the third stud and the tail part of the fourth stud are both provided with cambered surfaces matched with the exhaust bent pipe to be fixed.
Preferably, the first cushion block is connected with the first pressing block through a countersunk screw, the second cushion block is connected with the second pressing block through a countersunk screw, and the third cushion block is connected with the fixed seat through a countersunk screw.
Preferably, the side of the bottom plate is provided with a plurality of reinforcing ribs.
The working principle is as follows: the upright exhaust bent pipe is placed on the bottom plate, is fixed through the three fixing pieces, and is locked through a first nut on the first pressing block after being fixed; placing the other inverted exhaust bent pipe in a corresponding area on the bottom plate through a positioning column on the bottom plate, connecting the positioning column with the corresponding area of the inverted exhaust bent pipe, pressing and fixing the corresponding part of the exhaust bent pipe through a front pressing block module, and locking the exhaust bent pipe through a second nut; the third studs on the rear pressing block module are aligned to perform ejection fixing and are locked by third nuts; and finally, ejecting and fixing the side surface of the exhaust elbow through fourth studs on the two lateral pressing block modules, locking the side surface of the exhaust elbow through fourth nuts on the two fourth studs respectively, and starting an external machine tool to process the exhaust elbow.
The utility model discloses a processing diesel engine exhaust fixing device for return bend compares with prior art and has following advantage:
(1) the two exhaust bent pipes to be processed can be fixed at the same time each time, different parts of the exhaust bent pipes are processed, the positions of the exhaust bent pipes are exchanged after the processing is finished, and then the exhaust bent pipes are processed, so that the production efficiency is improved;
(2) the installation is simple swift.
Drawings
Fig. 1 is an installation schematic view a of the fixing device for processing the exhaust elbow of the diesel engine according to the present invention;
FIG. 2 is an enlarged view of a portion of the anchor of FIG. 1;
FIG. 3 is an enlarged view of a portion of the front and side compact modules of FIG. 1;
fig. 4 is an installation schematic diagram B of the fixing device for processing the exhaust elbow of the diesel engine according to the present invention;
FIG. 5 is an enlarged view of a portion of the rear compact module of FIG. 4;
fig. 6 is a schematic structural diagram of the first pressing block and the first cushion block connected by the countersunk head screw.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 6, a fixing device for processing an exhaust elbow of a diesel engine comprises a base plate 1, a first fixing module 2 and a second fixing module 3; the upper surface of the bottom plate 1 is a plane;
the first fixing module 2 comprises three fixing pieces, and the three fixing pieces comprise a first stud 6, a first nut 7, a first pressing block 8 and a first cushion block 9; the first studs 6 are vertically fixed on one side of the upper surface of the base plate 1, and on the upper surface of the base plate 1, the diameter of a circle passing through the centers of the three first studs 6 is larger than the outer diameter of a flange seat to which an external exhaust bent pipe is fixed, so that the exhaust bent pipe to be fixed can be placed; the upper surface of the first pressing block 8 is provided with a first through hole, the first pressing block 8 is sleeved on the first stud 6 through the first through hole, the first nut 7 is in threaded connection with the first stud 6 and is positioned above the first pressing block 8, and the first cushion block 9 is placed on the upper surface of the bottom plate 1 and is in contact with the lower surface of the first pressing block 8;
the second fixing module comprises a positioning column 23, a front pressing block module, a rear pressing block module and two side pressing block modules; the positioning column 23 is vertically fixed in the middle of the other side of the upper surface of the bottom plate 1; the front pressing block module comprises a second stud 12, a second pressing block 10, a second cushion block 11 and a second nut 13; the second stud 12 is vertically fixed on the upper surface of the bottom plate 1 and is positioned right in front of the positioning column 23; a second through hole is formed in the upper surface of the second pressing block 10, the second pressing block 10 is sleeved on the second stud 12 through the second through hole, the second nut 13 is connected to the second stud 12 in a threaded manner and is located right above the second pressing block 10, and the second cushion block 11 is placed on the upper surface of the bottom plate 1 and is in contact with the lower surface of the second pressing block 10; the rear pressing block module comprises a fixed seat 17, two third cushion blocks 18, a connecting block 19, a third stud 20 and a third nut 21; an arc-shaped concave surface is arranged on the side surface of the fixed seat 17, which is in contact with the exhaust bent pipe to be placed, and the arc-shaped concave surface is matched with the radian of the exhaust bent pipe to be placed; the two third cushion blocks 18 are fixed at two ends of the upper surface of the fixed seat 17, the connecting block 19 is fixed at the upper part of the side surface of the fixed seat 17, a third through hole is formed in the side surface of the connecting block 19, the third stud 20 penetrates through the third through hole, and the third nut 21 is in threaded connection with the head of the third stud 20; each of the two lateral briquetting modules comprises a fixing block 14, a fourth stud 15 and a fourth nut 16; the fixed blocks 14 are vertically fixed on the upper surface of the bottom plate 1 and positioned at two sides of the positioning column 23, and the distance between the two fixed blocks 14 is larger than the outer diameter of the exhaust elbow to be fixed; a fourth through hole is formed in the upper portion of the side face of the fixing block 14, the fourth stud 15 penetrates through the fourth through hole, and the fourth nut 16 is in threaded connection with the head of the fourth stud 15.
In order to facilitate installation, the first cushion block 9 is connected with the first pressing block 8 through a countersunk screw, the second cushion block 11 is connected with the second pressing block 10 through a countersunk screw, and the third cushion block 18 is connected with the fixing seat 17 through a countersunk screw.
Further, in order to improve the strength of the bottom plate 1, a plurality of reinforcing ribs are arranged on the side surface of the bottom plate 1.
Further, in order to enable the part on the second fixing module to better clamp and fix the exhaust elbow to be fixed, the tail part of the third stud 20 and the tail part of the fourth stud 15 are both provided with cambered surfaces matched with the exhaust elbow to be fixed, so that the contact area with the exhaust elbow is increased, and the exhaust elbow is better fixed.
The working principle is as follows: as shown in fig. 1, the upright exhaust bent pipe is placed on a bottom plate 1, fixed by three fixing pieces and locked by a first nut 7 on a first pressing block 8 after being fixed; the other inverted exhaust bent pipe is placed in the corresponding area of the bottom plate 1 through the positioning column 23 on the bottom plate 1, the positioning column 23 is connected with the corresponding area of the inverted exhaust bent pipe, then the corresponding part of the exhaust bent pipe is pressed and fixed through the front pressing block module, and then the exhaust bent pipe is locked through the second nut 13; the third studs 20 on the rear briquetting module are aligned to perform ejection fixing, and are locked by third nuts 21; and finally, ejecting and fixing the side surface of the exhaust elbow through fourth studs 15 on the two lateral pressing block modules, locking the exhaust elbow through fourth nuts 16 on the two fourth studs respectively, and starting an external machine tool to machine the exhaust elbow.
In the description of the present specification, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of describing the technical solutions of the present patent and for simplification of the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be interpreted as limiting the present patent application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this patent application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In this specification, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present specification can be understood by those of ordinary skill in the art as appropriate.
In this specification, unless explicitly stated or limited otherwise, a first feature may be "on" or "under" a second feature such that the first and second features are in direct contact, or the first and second features are in indirect contact via an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (4)
1. A fixing device for machining an exhaust elbow of a diesel engine is characterized by comprising a bottom plate, a first fixing module and a second fixing module, wherein the upper surface of the bottom plate is a plane;
the first fixing module comprises three fixing pieces, and the three fixing pieces comprise first studs, first nuts, first pressing blocks and first cushion blocks; the first studs are vertically fixed on one side of the upper surface of the base plate, and on the upper surface of the base plate, the diameter of a circle passing through the centers of the three first studs is larger than the outer diameter of a flange seat to which the external exhaust bent pipe is fixed; the upper surface of the first pressing block is provided with a first through hole, the first pressing block is sleeved on the first stud through the first through hole, the first nut is in threaded connection with the first stud and is positioned above the first pressing block, and the first cushion block is placed on the upper surface of the bottom plate and is in contact with the lower surface of the first pressing block;
the second fixing module comprises a positioning column, a front pressing block module, a rear pressing block module and two side pressing block modules; the positioning column is vertically fixed in the middle of the other side of the upper surface of the bottom plate; the front pressing block module comprises a second stud, a second pressing block, a second cushion block and a second nut; the second stud is vertically fixed on the upper surface of the bottom plate and is positioned right in front of the positioning column; the upper surface of the second pressing block is provided with a second through hole, the second pressing block is sleeved on the second stud through the second through hole, the second nut is in threaded connection with the second stud and is positioned right above the second pressing block, and the second cushion block is placed on the upper surface of the bottom plate and is in contact with the lower surface of the second pressing block; the rear pressing block module comprises a fixed seat, two third cushion blocks, a connecting block, a third stud and a third nut; an arc-shaped concave surface is arranged on the side surface of the fixed seat, which is in contact with the exhaust bent pipe to be placed, and the arc-shaped concave surface is matched with the radian of the exhaust bent pipe to be placed; the two third cushion blocks are fixed at the two ends of the upper surface of the fixed seat, the connecting block is fixed at the upper part of the side surface of the fixed seat, a third through hole is formed in the side surface of the connecting block, the third stud penetrates through the third through hole, and the third nut is in threaded connection with the head of the third stud; the two lateral pressing block modules comprise fixing blocks, fourth studs and fourth nuts; the fixed blocks are vertically fixed on the upper surface of the bottom plate and positioned on two sides of the positioning column, and the distance between the two fixed blocks is larger than the outer diameter of the exhaust elbow to be fixed; and a fourth through hole is formed in the upper part of the side face of the fixing block, the fourth stud penetrates through the fourth through hole, and the fourth nut is in threaded connection with the head of the fourth stud.
2. The fixing device for processing the exhaust elbow of the diesel engine as claimed in claim 1, wherein the tail part of the third stud and the tail part of the fourth stud are provided with cambered surfaces matched with the exhaust elbow to be fixed.
3. The fixing device for processing the exhaust elbow of the diesel engine as claimed in claim 1, wherein the first cushion block and the first pressing block are connected by a countersunk screw, the second cushion block and the second pressing block are connected by a countersunk screw, and the third cushion block and the fixing seat are connected by a countersunk screw.
4. The fixing device for processing the exhaust elbow of the diesel engine as claimed in claim 1, wherein the side surface of the bottom plate is provided with a plurality of reinforcing ribs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921726055.5U CN210649631U (en) | 2019-10-15 | 2019-10-15 | Fixing device for processing exhaust elbow of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921726055.5U CN210649631U (en) | 2019-10-15 | 2019-10-15 | Fixing device for processing exhaust elbow of diesel engine |
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| Publication Number | Publication Date |
|---|---|
| CN210649631U true CN210649631U (en) | 2020-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921726055.5U Active CN210649631U (en) | 2019-10-15 | 2019-10-15 | Fixing device for processing exhaust elbow of diesel engine |
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| CN (1) | CN210649631U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113787329A (en) * | 2021-08-30 | 2021-12-14 | 东风汽车零部件(集团)有限公司通用铸锻分公司 | Clamp for processing sealed pipe orifice error-proofing boss of engine pipe fitting |
-
2019
- 2019-10-15 CN CN201921726055.5U patent/CN210649631U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113787329A (en) * | 2021-08-30 | 2021-12-14 | 东风汽车零部件(集团)有限公司通用铸锻分公司 | Clamp for processing sealed pipe orifice error-proofing boss of engine pipe fitting |
| CN113787329B (en) * | 2021-08-30 | 2024-03-29 | 东风汽车零部件(集团)有限公司通用铸锻分公司 | Clamp for processing sealing pipe orifice error-proof boss of engine pipe fitting |
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