CN116060654A - Clamping device for processing excircle of straight pipe section of large-sized bent pipe - Google Patents
Clamping device for processing excircle of straight pipe section of large-sized bent pipe Download PDFInfo
- Publication number
- CN116060654A CN116060654A CN202211574942.1A CN202211574942A CN116060654A CN 116060654 A CN116060654 A CN 116060654A CN 202211574942 A CN202211574942 A CN 202211574942A CN 116060654 A CN116060654 A CN 116060654A
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- clamping
- connecting seat
- section
- clamping device
- bent pipe
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B25/00—Accessories or auxiliary equipment for turning-machines
- B23B25/06—Measuring, gauging, or adjusting equipment on turning-machines for setting-on, feeding, controlling, or monitoring the cutting tools or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/103—Retention by pivotal elements, e.g. catches, pawls
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention relates to the technical field of mechanical manufacturing, in particular to a clamping device for processing the excircle of a straight pipe section of a large-sized bent pipe. Including the base with set firmly in last connecting seat, slope connecting seat and lower connecting seat on the base, the outer circle of base is fixed through the jack catch centre gripping of lathe chuck, go up the connecting seat and have the horizontal clamping space that is used for the vertical section of centre gripping return bend, the slope connecting seat has the slope clamping space that is used for the vertical clamping space of centre gripping return bend corner section, lower connecting seat has the vertical clamping space that is used for the horizontal section of centre gripping return bend, the return bend is fixed in through each matched with clamping space by the centre gripping on last connecting seat, slope connecting seat and the lower connecting seat. The device can be applied to large-sized bent pipes with large rotation and large eccentricity, and can be used for fixing the large-sized bent pipes and adapting to a lathe, and the bent pipes can rotate along with the center of a main shaft of the lathe through the clamping device, so that the lathe can process the large-sized bent pipes with high precision.
Description
Technical Field
The invention relates to the technical field of mechanical manufacturing, in particular to a clamping device for processing the excircle of a straight pipe section of a large-sized bent pipe.
Background
In the field of machine manufacturing, when machining a pipe, it is necessary to mount the pipe to a lathe to perform machining of the pipe. The large bent pipe belongs to a large special-shaped piece, the straight pipe section of the bent pipe is long, the finish machining requirements of the outer circle and the inner hole are high, and the numerical control lathe and the deep hole boring machine cannot clamp. The special fixture is designed for the large-sized bent pipe, so that the clamping of the large-sized bent pipe and the adaptation of the large-sized bent pipe to a lathe are realized, and the high-precision processing of the large-sized bent pipe can be realized.
Disclosure of Invention
The invention aims at overcoming the defects of the prior art, and provides a clamping device for processing the excircle of a straight pipe section of a large-sized bent pipe.
The clamping device for processing the outer circle of the straight pipe section of the large-scale bent pipe comprises a base, an upper connecting seat, an inclined connecting seat and a lower connecting seat, wherein the upper connecting seat, the inclined connecting seat and the lower connecting seat are fixedly arranged on the base, the outer circle of the base is clamped and fixed through clamping jaws of a lathe chuck, the upper connecting seat is provided with a horizontal clamping space for clamping the vertical section of the bent pipe, the inclined connecting seat is provided with an inclined clamping space for clamping the corner section of the bent pipe, the lower connecting seat is provided with a vertical clamping space for clamping the horizontal section of the bent pipe, and the bent pipe is clamped and fixed on the upper connecting seat, the inclined connecting seat and the lower connecting seat through the matched clamping spaces.
More preferably, the upper connecting seat comprises an upper fixing part and an upper clamping part, the upper fixing part is fixedly connected with the base, two ends of the upper clamping part are fixedly connected with the upper fixing part through bolts, and a horizontal clamping space matched with the shape of the vertical section of the bent pipe is formed between the upper fixing part and the upper clamping part.
More preferably, the lower connecting seat comprises a lower fixing part and a lower clamping part, the lower fixing part is fixedly connected with the base, two ends of the lower clamping part are fixedly connected with the lower fixing part through bolts, and a vertical clamping space matched with the shape of the horizontal section of the bent pipe is formed between the lower fixing part and the lower clamping part.
More preferably, the lower fixing part is provided with a bearing cavity, and the inner wall of the bearing cavity is mutually matched with the corner section of the bent pipe, a part of the vertical section at one end of the corner section and a part of the horizontal section at the other end of the corner section.
Preferably, the central axis of the bearing cavity is coincident with the central axis of the bent pipe.
More preferably, the inclined connecting seat comprises inclined fixing parts and inclined clamping parts, the inclined fixing parts are symmetrically arranged on two sides of a bearing cavity of the lower fixing part, two ends of each inclined clamping part are fixedly connected with the inclined fixing parts through bolts respectively, and an inclined clamping space matched with the shape of the corner section of the bent pipe is formed between the bearing cavity and the inclined clamping parts.
Preferably, the inclined fixing part is a v-shaped support body with a downward opening, and the opening end of the v-shaped support body is fixedly connected with the surface of the lower fixing part.
Preferably, the surface of the v-shaped support body for connecting the inclined clamping part is an inclined surface, and the included angle between the inclined surface and the horizontal plane is equal to the included angle between the corner section and the horizontal section of the bent pipe.
Preferably, a supporting rib plate is arranged between the bottom of the lower fixing part and the base.
The beneficial effects of the invention are as follows:
1. the clamping device is provided with an upper connecting seat, an inclined connecting seat and a lower connecting seat respectively, and is fixed by the aid of a horizontal clamping space, an inclined clamping space and a vertical clamping space which are respectively arranged on the upper connecting seat, the inclined connecting seat and the lower connecting seat. The lathe chuck clamps the base of the clamping device through the clamping jaws, so that the whole clamping device can rotate along with the lathe spindle, and the tool is driven to rotate together with the bent pipe. Turning tools are arranged on a lathe tool rest, the lathe rotates, the tool rest moves back and forth, and the turning tools on the tool rest can process the excircle of the straight pipe section of the large-scale bent pipe with high precision. The roundness and straightness of the straight pipe section are easier to ensure, and the production efficiency is high.
2. The lower fixing part is provided with the bearing cavity which can be matched with the shape of the corner part of the bent pipe, so that the bent pipe can be better supported and fixed, the clamping stability of the bent pipe is ensured, the bent pipe is prevented from rotating in the processing process, and the processing precision is ensured.
3. The inclined connecting seat is realized by arranging v-shaped supporting bodies on two sides of the lower fixing part, so that the clamping and fixing of the corner part of the bent pipe are realized. The v-shaped support body is simple in structure, can realize triangular support, and is high in strength and high in support stability.
Drawings
FIG. 1 is a schematic view of a bent pipe structure according to the present invention;
FIG. 2 is a schematic view of a clamping elbow of the present invention;
FIG. 3 is a schematic view of the present invention in a machining state in which the elbow is clamped and fitted to a lathe;
FIG. 4 is a schematic view of the structure of the present invention (without the inclined connecting base);
FIG. 5 is a schematic view of the structure of the upper connector of the present invention;
FIG. 6 is a schematic view of the structure of the inclined connecting seat of the present invention;
fig. 7 is a schematic view of the structure of the lower connecting seat of the present invention.
In the figure: 1-bending a straight pipe section; 2-bending the pipe; 3-an upper connecting seat; 4-an inclined connecting seat; 5-a lower connecting seat; 6-supporting rib plates; 7-a base; 8-a bolt; 9-a lathe chuck; 10-bed ends; 11-a pipe mouth choke plug of a straight pipe section of the bent pipe; 12-vertical section; 13-a corner section; 14-horizontal segment; 15-an upper fixing part; 16-an upper clamping portion; 17-an inclined fixing part; 18-an inclined clamping part; 19-a lower fixing part; 20-a lower clamping part; 21-a claw; 22-bearing cavity.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved by the present application more clear, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
In addition, in the description of the present application and the appended claims, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.
Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise. "plurality" means "two or more".
Example 1
The embodiment provides a preferred embodiment of a clamping device for processing the excircle of a straight pipe section of a large-sized bent pipe, and the clamping device is used for clamping the large-sized bent pipe 2. The large-sized bent pipe 2 is shown in fig. 1, and has a longer bent pipe straight pipe section 1, and the bent pipe 2 is an opposite pipe, so that the bent pipe 2 is not easy to clamp on a numerical control lathe and a deep hole boring machine. For ease of description, the structure of the elbow 2 is hereinafter divided into a vertical section 12, a corner section 13 and a horizontal section 14.
As shown in fig. 2-7, a clamping device for processing the outer circle of a straight pipe section of a large-sized bent pipe comprises a base 7, an upper connecting seat 3, an inclined connecting seat 4 and a lower connecting seat 5, wherein the upper connecting seat 3, the inclined connecting seat 4 and the lower connecting seat 5 are fixedly arranged on the base 7, the outer circle of the base 7 is clamped and fixed through a claw 21 of a lathe chuck 9, the upper connecting seat 3 is provided with a horizontal clamping space for clamping a vertical section 12 of the bent pipe 2, the inclined connecting seat 4 is provided with an inclined clamping space for clamping a corner section 13 of the bent pipe 2, the lower connecting seat 5 is provided with a vertical clamping space for clamping a horizontal section 14 of the bent pipe 2, and the bent pipe 2 is clamped and fixed on the upper connecting seat 3, the inclined connecting seat 4 and the lower connecting seat 5 through matched clamping spaces. Wherein, the number of the clamping claws 21 is 4, and the adjacent clamping claws 21 are separated by an included angle of 90 degrees.
The clamping device is provided with an upper connecting seat, an inclined connecting seat and a lower connecting seat respectively, and is fixed by the aid of a horizontal clamping space, an inclined clamping space and a vertical clamping space which are respectively arranged on the upper connecting seat, the inclined connecting seat and the lower connecting seat. The lathe clamp clamps the base of the clamping device through the clamping jaws, so that the whole clamping device can rotate along with the lathe spindle, and the tool is driven to rotate together with the bent pipe. Turning tools are arranged on a lathe tool rest, the lathe rotates, the tool rest moves back and forth, and the turning tools on the tool rest can process the excircle of the straight pipe section of the large-scale bent pipe with high precision.
In one embodiment, the upper connecting seat 3 includes an upper fixing portion 15 and an upper clamping portion 16, the upper fixing portion 15 is fixedly connected with the base 7, two ends of the upper clamping portion 16 are fixedly connected with the upper fixing portion 15 through bolts 8, and a horizontal clamping space adapted to the shape of the vertical section 12 of the elbow pipe 2 is formed between the upper fixing portion 15 and the upper clamping portion 16.
In one embodiment, the lower connecting seat 5 includes a lower fixing portion 19 and a lower clamping portion 20, the lower fixing portion 19 is fixedly connected with the base 7, two ends of the lower clamping portion 20 are fixedly connected with the lower fixing portion 19 through bolts 8, and a vertical clamping space adapted to the shape of the horizontal section 14 of the elbow 2 is formed between the lower fixing portion 19 and the lower clamping portion 20. A supporting rib plate 6 is arranged between the bottom of the lower fixing part 19 and the base.
In one embodiment, the lower fixing portion 19 is provided with a bearing cavity 22, and the inner wall of the bearing cavity 22 is mutually matched with the corner section 13 of the elbow pipe 2, a part of the vertical section 12 at one end of the corner section 13, and a part of the horizontal section 14 at the other end of the corner section 13.
The lower fixing part is provided with the bearing cavity which can be matched with the shape of the corner part of the bent pipe, so that the bent pipe can be better supported and fixed, the clamping stability of the bent pipe is ensured, the bent pipe is prevented from rotating in the processing process, and the processing precision is ensured.
In one embodiment, the central axis of the support cavity 22 coincides with the central axis of the elbow 2.
In one embodiment, the inclined connecting seat 4 includes an inclined fixing portion 17 and inclined clamping portions 18, the inclined fixing portions 17 are symmetrically disposed on two sides of a bearing cavity 22 of the lower fixing portion 19, two ends of the inclined clamping portions 18 are respectively and fixedly connected with the inclined fixing portions 17 through bolts 8, and an inclined clamping space adapted to the shape of the corner section 13 of the elbow 2 is formed between the bearing cavity 22 and the inclined clamping portions 18.
In one embodiment, the inclined fixing portion 17 is a v-shaped support body with a downward opening, and an opening end of the v-shaped support body is fixedly connected with a surface of the lower fixing portion 19. The open end of the v-shaped support body is welded and fixed to the surface of the lower fixing portion 19.
In this embodiment, the upper connecting seat 3, the lower connecting seat 5 and the base 7, the upper fixing portion 15 and the upper clamping portion 16, the lower fixing portion 19 and the lower clamping portion 20, and the inclined fixing portion 17 and the inclined clamping portion 18 are all connected by bolts 8.
The inclined connecting seat is realized by arranging v-shaped supporting bodies on two sides of the lower fixing part, so that the clamping and fixing of the corner part of the bent pipe are realized. The v-shaped support body is simple in structure, can realize triangular support, and is high in strength and high in support stability.
In one embodiment, the surface of the v-shaped support body for connecting the inclined clamping portion 18 is an inclined surface, and the included angle between the inclined surface and the horizontal plane is equal to the included angle between the corner section 13 and the horizontal section 14 of the elbow pipe 2.
The working principle of the device is as follows:
the bolts 8 between the upper fixing part 15 and the upper clamping part 16, between the lower fixing part 19 and the lower clamping part 20 and between the inclined fixing part 17 and the inclined clamping part 18 are loosened, the bent pipe 2 is put into the clamping device, and then the bolts are tightened, so that the clamping and fixing of the upper connecting seat, the inclined connecting seat and the lower connecting seat on the bent pipe 2 are realized. After the installation is completed, the whole lathe is hung, the lathe chuck 9 clamps the base 7, the center of the lathe tail 10 is propped against the pipe orifice choke plug 11 of the straight pipe section of the bent pipe, and the lower connecting seat 5 is concentric with the straight pipe section 1 of the bent pipe and the lathe spindle. The tool is driven to rotate together with the bent pipe 2 through rotation of a lathe spindle. Turning tools are arranged on a lathe tool rest, the lathe rotates, the tool rest moves back and forth, and the turning tools on the tool rest can process the excircle of the straight pipe section of the large-scale bent pipe to the requirement.
By adopting the device, the processing of the excircles of the straight pipe sections of the four bent pipes can be completed in one working day, the roughness of the excircles of the straight pipe sections can reach Ra0.4, the roundness and the straightness can reach phi 0.02, the quality is stable and reliable, and the production efficiency is high.
The above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.
Claims (9)
1. A clamping device for processing of large-scale return bend straight tube section excircle, its characterized in that: including base (7) and last connecting seat (3), slope connecting seat (4) and lower connecting seat (5) of setting firmly on base (7), the outer circle of base (7) is fixed through the jack catch (21) centre gripping of lathe chuck (9), go up connecting seat (3) and have the horizontal clamping space that is used for centre gripping return bend (2) vertical section (12), slope connecting seat (4) have the slope clamping space that is used for centre gripping return bend (2) corner section (13), lower connecting seat (5) have the vertical clamping space that is used for centre gripping return bend (2) horizontal segment (14), return bend (2) are fixed in through the centre gripping of matched with each clamping space on last connecting seat (3), slope connecting seat (4) and lower connecting seat (5).
2. The clamping device for processing the excircle of the straight pipe section of the large-scale bent pipe according to claim 1, wherein the clamping device is characterized in that: the upper connecting seat (3) comprises an upper fixing portion (15) and an upper clamping portion (16), the upper fixing portion (15) is fixedly connected with the base (7), two ends of the upper clamping portion (16) are fixedly connected with the upper fixing portion (15) through bolts (8), and a horizontal clamping space matched with the shape of the vertical section (12) of the bent pipe (2) is formed between the upper fixing portion (15) and the upper clamping portion (16).
3. The clamping device for processing the excircle of the straight pipe section of the large-scale bent pipe according to claim 1, wherein the clamping device is characterized in that: the lower connecting seat (5) comprises a lower fixing part (19) and a lower clamping part (20), the lower fixing part (19) is fixedly connected with the base (7), two ends of the lower clamping part (20) are fixedly connected with the lower fixing part (19) through bolts (8), and a vertical clamping space matched with the shape of the horizontal section (14) of the bent pipe (2) is formed between the lower fixing part (19) and the lower clamping part (20).
4. The clamping device for processing the outer circle of the straight pipe section of the large-scale bent pipe according to claim 3, wherein the clamping device comprises the following components: the lower fixing part (19) is provided with a bearing cavity (22), and the inner wall of the bearing cavity (22) is mutually matched with the corner section (13) of the elbow pipe (2), a part of the vertical section (12) at one end of the corner section (13) and a part of the horizontal section (14) at the other end of the corner section (13).
5. The clamping device for processing the outer circle of the straight pipe section of the large-scale bent pipe according to claim 4, wherein the clamping device is characterized in that: the central axis of the bearing cavity (22) is mutually overlapped with the central axis of the bent pipe (2).
6. The clamping device for processing the outer circle of the straight pipe section of the large-scale bent pipe according to claim 4, wherein the clamping device is characterized in that: the inclined connecting seat (4) comprises inclined fixing portions (17) and inclined clamping portions (18), the inclined fixing portions (17) are symmetrically arranged on two sides of a bearing cavity (22) of the lower fixing portion (19), two ends of each inclined clamping portion (18) are fixedly connected with the corresponding inclined fixing portion (17) through bolts (8), and an inclined clamping space matched with the shape of the corner section (13) of the bent pipe (2) is formed between the corresponding bearing cavity (22) and the corresponding inclined clamping portion (18).
7. The clamping device for processing the outer circle of the straight pipe section of the large-scale bent pipe according to claim 6, wherein the clamping device is characterized in that: the inclined fixing part (17) is a v-shaped support body with a downward opening, and the opening end of the v-shaped support body is fixedly connected with the surface of the lower fixing part (19).
8. The clamping device for processing the outer circle of the straight pipe section of the large-scale bent pipe according to claim 6, wherein the clamping device is characterized in that: the surface of the v-shaped support body for connecting the inclined clamping part (18) is an inclined surface, and the included angle between the inclined surface and the horizontal plane is equal to the included angle between the corner section (13) and the horizontal section (14) of the elbow pipe (2).
9. The clamping device for processing the outer circle of the straight pipe section of the large-scale bent pipe according to claim 3, wherein the clamping device comprises the following components: a supporting rib plate (6) is arranged between the bottom of the lower fixing part (19) and the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211574942.1A CN116060654A (en) | 2022-12-08 | 2022-12-08 | Clamping device for processing excircle of straight pipe section of large-sized bent pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211574942.1A CN116060654A (en) | 2022-12-08 | 2022-12-08 | Clamping device for processing excircle of straight pipe section of large-sized bent pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116060654A true CN116060654A (en) | 2023-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211574942.1A Pending CN116060654A (en) | 2022-12-08 | 2022-12-08 | Clamping device for processing excircle of straight pipe section of large-sized bent pipe |
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| CN (1) | CN116060654A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117884848A (en) * | 2024-03-18 | 2024-04-16 | 四川优机精密机械制造有限公司 | Processing method of oil transportation elbow joint of aircraft engine |
-
2022
- 2022-12-08 CN CN202211574942.1A patent/CN116060654A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117884848A (en) * | 2024-03-18 | 2024-04-16 | 四川优机精密机械制造有限公司 | Processing method of oil transportation elbow joint of aircraft engine |
| CN117884848B (en) * | 2024-03-18 | 2024-05-07 | 四川优机精密机械制造有限公司 | Processing method of oil transportation elbow joint of aircraft engine |
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