CN217121789U - Machining clamp for eccentric reducing elbow - Google Patents
Machining clamp for eccentric reducing elbow Download PDFInfo
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- CN217121789U CN217121789U CN202122396724.0U CN202122396724U CN217121789U CN 217121789 U CN217121789 U CN 217121789U CN 202122396724 U CN202122396724 U CN 202122396724U CN 217121789 U CN217121789 U CN 217121789U
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- clamping jaw
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- positioning groove
- eccentric reducing
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Abstract
A processing clamp for an eccentric reducing elbow comprises a chuck, a special clamping jaw and a clamp body; the chuck is assembled with lathe equipment, and a special clamping jaw is assembled on the chuck; the special clamping jaw comprises a positioning clamping jaw and a clamping jaw, and a positioning boss is arranged on the positioning clamping jaw; the fixture body is of a split structure, is arranged between the positioning clamping jaw and the clamping jaw and consists of a first fixture and a second fixture, the first fixture and the second fixture are connected together through bolts, a workpiece clamping and accommodating cavity is formed at joint surfaces of the first fixture and the second fixture, a first positioning groove is arranged on a positioning surface of the first fixture, a second positioning groove is arranged on a positioning surface of the second fixture, and the first positioning groove or the second positioning groove is matched with a positioning boss on the positioning clamping jaw and can be embedded into the first positioning groove or the second positioning groove. The utility model discloses a conversion of eccentric reducing return bend work piece processing positioning reference has reached reduction in production cost, has improved product processingquality and work efficiency's purpose.
Description
Technical Field
The utility model relates to an anchor clamps, especially an anchor clamps that are suitable for eccentric reducing return bend work piece both ends gyration disc to process.
Background
As shown in fig. 1 and fig. 2, an eccentric reducing elbow workpiece 1 has the following characteristics: 1. the two end surfaces of the bent pipe form a certain included angle alpha; 2. the distance between the horizontal central axes of the two end surfaces of the bent pipe in the state shown in fig. 2 is L; 3. the two ends of the bent pipe have position degree requirements, and are required to be related and positioned when the two end faces are processed. Because the processing surfaces of the two ends of the eccentric reducing elbow workpiece 1 are turning circles, the two ends are respectively turned by lathe equipment, and therefore the processing of the two ports of the eccentric reducing elbow workpiece 1 needs two processes.
In the prior art, aiming at the processing problem of the two ports of the eccentric reducing elbow workpiece 1, two sets of bent plate clamps with different central position heights are adopted to clamp and position the workpiece, and because the whole processing process needs to carry out twice workpiece clamping and positioning operations, the tooling has the advantages of complex structure, high manufacturing cost and secondary positioning problem, the position precision of the workpiece is difficult to guarantee, the product processing quality is reduced, and the adverse effect is also caused on the improvement of the production efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model provides a adds clamping apparatus of eccentric reducing return bend, it sets up two sets of interrelated's location benchmark in same set of anchor clamps, realizes the conversion of twice process location benchmark through the adjustment of placing the angle to anchor clamps, reaches reduction in production cost, improves product processingquality and work efficiency's purpose.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a processing clamp for an eccentric reducing elbow comprises a chuck, a special clamping jaw and a clamp body; the chuck is assembled with lathe equipment, and a special clamping jaw is assembled on the chuck; the special clamping jaw comprises a positioning clamping jaw and a clamping jaw which are oppositely arranged, and a positioning boss is arranged on the positioning clamping jaw; the fixture body is of a split structure, is arranged between the positioning clamping jaw and the clamping jaw and consists of a first fixture and a second fixture, the first fixture and the second fixture are connected together through bolts, a workpiece clamping and accommodating cavity is formed at joint surfaces of the first fixture and the second fixture, a first positioning groove is arranged on a positioning surface of the first fixture, a second positioning groove is arranged on a positioning surface of the second fixture, and the first positioning groove or the second positioning groove is matched with a positioning boss on the positioning clamping jaw and can be embedded into the first positioning groove or the second positioning groove.
According to the eccentric reducing elbow port machining clamp, the positioning boss on the positioning clamping jaw is a cross-shaped boss; the first positioning groove and the second positioning groove are both cross-shaped grooves, when a first port of the eccentric reducing elbow workpiece is machined, the eccentric reducing elbow workpiece is clamped and positioned through the matching of the positioning boss on the positioning clamping jaw and the first positioning groove, when a second port of the eccentric reducing elbow workpiece is machined, the clamp body is turned over, and the eccentric reducing elbow workpiece is clamped and positioned through the matching of the positioning boss on the positioning clamping jaw and the second positioning groove.
According to the fixture for processing the end port of the eccentric reducing elbow pipe, after the first fixture and the second fixture are tightly assembled with the eccentric reducing elbow pipe workpiece, the included angle between the central axes of the first positioning groove and the second positioning groove is equal to the included angle alpha between the two end faces of the eccentric reducing elbow pipe workpiece.
According to the clamp for processing the end opening of the eccentric reducing elbow, the positioning clamping jaw and the clamping jaw in the special clamping jaw are arranged up and down oppositely, and the positioning clamping jaw is positioned below the clamping jaw; the first clamp and the second clamp in the clamp body are oppositely arranged up and down, a first positioning groove is formed in the top surface of the first clamp, and a second positioning groove is formed in the bottom surface of the second clamp.
According to the fixture for processing the end opening of the eccentric reducing elbow pipe, the inner wall of the clamping and accommodating cavity of the workpiece is matched with the outer surface of the eccentric reducing elbow pipe workpiece.
The utility model provides a add clamping apparatus of eccentric reducing return bend, it has set up first constant head tank and second constant head tank on the anchor clamps body outside both ends face of components of a whole that can function independently structure, and set up the location boss on the location jack catch of special jack catch, add man-hour carrying out eccentric reducing return bend both ends mouth, only need carry out clamping once to the work piece through the anchor clamps body, again with the cooperation of location boss on first constant head tank and the location jack catch on the anchor clamps body, realize the location of work piece when the first port of work piece adds the man-hour, accomplish the first port of work piece and process the back, the upset of accessible anchor clamps body, make on the anchor clamps body second constant head tank and the location jack catch on the location boss cooperation, realize the work piece second port from this and add the location of work piece man-hour. Therefore, the utility model discloses a conversion of eccentric reducing return bend port processing twice process location benchmark to reduction in production cost, improvement product processingquality and work efficiency's purpose have been reached.
Drawings
FIG. 1 is a schematic structural diagram of an eccentric reducing elbow workpiece;
FIG. 2 is a bottom view of FIG. 1;
FIG. 3 is a schematic structural view of the eccentric reducing elbow port processing fixture of the present invention;
FIG. 4 is a schematic structural view of the clamp body (the first positioning groove is in an upper end surface state);
FIG. 5 is a schematic view of the inverted structure of FIG. 4 (the second positioning slot is located at the upper end surface);
FIG. 6 is a schematic view of the position relationship between the first positioning groove and the second positioning groove;
FIG. 7 is a schematic view of a special jaw configuration;
FIG. 8 is a schematic view of a workpiece clamping state of a first port machining process of an eccentric reducing elbow workpiece;
FIG. 9 is a schematic view of a position relationship between a first positioning groove and a second positioning groove in a first port machining process of an eccentric reducing elbow workpiece;
FIG. 10 is a schematic view of a workpiece clamping state of a second port machining process of an eccentric reducing elbow workpiece;
FIG. 11 is a schematic diagram of the position relationship between the first positioning groove and the second positioning groove in the second port machining process of the eccentric reducing elbow workpiece.
The list of labels in the figure is:
1. 1-1 parts of eccentric special pipe workpieces, 1-2 parts of first ports and second ports;
2. the machining fixture for the eccentric special pipe comprises, by weight, 2-1 parts of a fixture, 2-2 parts of a chuck, 2-3 parts of a clamping jaw, 2-3-1 parts of a first fixture, 2-4 parts of a first positioning groove, 2-4 parts of a second fixture, 2-4-1 parts of a second positioning groove, 2-5 parts of a positioning jaw, 2-5-1 parts of a positioning boss, 2-6 parts of a workpiece clamping accommodating cavity.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 and 2, an eccentric reducing elbow workpiece 1 has two end faces forming an included angle α, the distance between horizontal central axes of the two end faces is L in the state shown in fig. 2, and the two ends of the elbow workpiece 1 have a position requirement, so that the two ends (a first port 1-1 and a second port 1-2 shown in the figure) are positioned in a related manner during machining. Because the processing surfaces of the two ports of the eccentric reducing elbow workpiece 1 are turning circles, lathe equipment is generally adopted to respectively perform turning processing on the first port 1-1 and the second port 1-2.
Referring to fig. 3, 4, 5, 6, and 7, in order to improve the efficiency of processing two ports of the eccentric reducing elbow workpiece 1 and reduce the cost of the fixture, the utility model provides a processing fixture 2 for eccentric reducing elbows, the processing fixture 2 for eccentric reducing elbows ports comprises a chuck 2-1, a special jaw and a fixture body; the chuck 2-1 is assembled with lathe equipment, and a special clamping jaw is assembled on the chuck 2-1; the special clamping jaw comprises a positioning clamping jaw 2-5 and a clamping jaw 2-2 which are oppositely arranged, and a positioning boss 2-5-1 is arranged on the positioning clamping jaw 2-5; the fixture body is of a split structure, is arranged between a positioning clamping jaw 2-5 and a clamping jaw 2-2 and consists of a first fixture 2-3 and a second fixture 2-4, the first fixture 2-3 and the second fixture 2-4 are fixedly connected in a detachable mode, preferably are connected together through bolts (not shown in the figure), a workpiece clamping and accommodating cavity 2-6 is formed at the joint surface of the first fixture 2-3 and the second fixture 2-4, the inner wall of the workpiece clamping and accommodating cavity 2-6 is matched with the outer surface of an eccentric reducing elbow workpiece 1, a first positioning groove 2-3-1 is arranged on the positioning surface of the first fixture 2-3, a second positioning groove 2-4-1 is arranged on the positioning surface of the second fixture 2-4, the first positioning groove 2-3-1 or the second positioning groove 2-4-1 is matched with a positioning boss 2-5-1 on the positioning clamping jaw 2-5, the positioning boss 2-5-1 can be embedded into the first positioning groove 2-3-1 or the second positioning groove 2-4-1.
Referring to fig. 3, 4, 5, 6 and 7, as a preferred embodiment of the present invention, the positioning boss 2-5-1 on the positioning claw 2-5 is a cross boss; the first positioning groove 2-3-1 and the second positioning groove 2-4-1 are both cross-shaped concave grooves, when a first port 1-1 of the eccentric reducing elbow workpiece 1 is machined, the positioning surface of the first clamp 2-3 is used as a positioning reference surface, the eccentric reducing elbow workpiece 1 is positioned through the matching of the positioning boss 2-5-1 on the positioning claw 2-5 and the first positioning groove 2-3-1, then the eccentric reducing elbow workpiece 1 is clamped through the matching of the positioning claw 2-5 and the clamping claw 2-2, when a second port 1-2 of the eccentric reducing elbow workpiece 1 is machined, the clamp body is turned over, the positioning surface of the second clamp 2-4 is used as a positioning reference surface, the eccentric reducing elbow workpiece 1 is positioned through the matching of the positioning boss 2-5-1 on the positioning claw 2-5 and the second positioning groove 2-4-1, then the eccentric reducing elbow workpiece 1 is clamped by the matching of the positioning clamping jaw 2-5 and the clamping jaw 2-2; after the first clamp 2-3 and the second clamp 2-4 are tightly assembled with the eccentric reducing elbow workpiece 1, the included angle of the central axes of the first positioning groove 2-3-1 and the second positioning groove 2-4-1 is equal to the included angle alpha of the two end surfaces of the eccentric reducing elbow workpiece 1.
Referring to fig. 4, 5, 7 and 8, in the preferred embodiment of the eccentric reducing elbow port machining clamp 2 of the present invention, the positioning jaws 2-5 and the clamping jaws 2-2 are disposed opposite to each other, and the positioning jaws 2-5 are disposed below the clamping jaws 2-2; a first clamp 2-3 and a second clamp 2-4 in the clamp body are arranged oppositely up and down, a first positioning groove 2-3-1 is arranged on the top surface of the first clamp 2-3, and a second positioning groove 2-4-1 is arranged on the bottom surface of the second clamp 2-4.
Referring to fig. 9, 10 and 11, the eccentric reducing elbow port processing fixture 2 according to the present invention, when two ports of the eccentric reducing elbow workpiece 1 are machined, the workpiece is clamped for one time only through the fixture body, then the first positioning groove 2-3-1 on the first fixture 2-3 is matched with the positioning boss 2-5-1 on the positioning clamping jaw 2-5, the positioning of the workpiece during the machining of the first port 1-1 of the eccentric reducing elbow workpiece 1 is realized, after the machining of the first port 1-1 of the eccentric reducing elbow workpiece 1 is completed, the second positioning groove 2-4-1 on the second clamp 2-4 can be matched with the positioning boss 2-5-1 on the positioning claw 2-5 by turning over the clamp body, so that the positioning of the workpiece when the second port 1-2 of the eccentric reducing elbow workpiece 1 is machined is realized.
Claims (5)
1. The utility model provides a add clamping apparatus of eccentric reducing return bend, characterized by: the machining clamp (2) for the eccentric reducing elbow comprises a chuck (2-1), a special clamping jaw and a clamp body; the chuck (2-1) is assembled with lathe equipment, and a special clamping jaw is assembled on the chuck (2-1); the special clamping jaw comprises a positioning clamping jaw (2-5) and a clamping jaw (2-2), the positioning clamping jaw and the clamping jaw are arranged oppositely, and a positioning boss (2-5-1) is arranged on the positioning clamping jaw (2-5); the clamp body is of a split structure, is arranged between a positioning clamping jaw (2-5) and a clamping jaw (2-2), and consists of a first clamp (2-3) and a second clamp (2-4), the first clamp (2-3) and the second clamp (2-4) are connected together through a bolt, a workpiece clamping accommodating cavity (2-6) is formed at the joint surface of the first clamp and the second clamp, a first positioning groove (2-3-1) is arranged on the positioning surface of the first clamp (2-3), a second positioning groove (2-4-1) is arranged on the positioning surface of the second clamp (2-4), the first positioning groove (2-3-1) or the second positioning groove (2-4-1) is matched with a positioning boss (2-5-1) on the positioning clamping jaw (2-5), the positioning boss (2-5-1) can be embedded into the first positioning groove (2-3-1) or the second positioning groove (2-4-1).
2. The machining fixture for the eccentric reducing elbow pipe according to claim 1, wherein: the positioning boss (2-5-1) on the positioning claw (2-5) is a cross boss; the first positioning groove (2-3-1) and the second positioning groove (2-4-1) are both cross-shaped grooves, when a first port (1-1) of the eccentric reducing elbow workpiece (1) is machined, the eccentric reducing elbow workpiece (1) is clamped and positioned through the matching of the positioning boss (2-5-1) on the positioning clamping jaw (2-5) and the first positioning groove (2-3-1), when a second port (1-2) of the eccentric reducing elbow workpiece (1) is machined, the clamp body is turned over, and the eccentric reducing elbow workpiece (1) is clamped and positioned through the matching of the positioning boss (2-5-1) on the positioning clamping jaw (2-5) and the second positioning groove (2-4-1).
3. The machining fixture for the eccentric reducing elbow pipe as claimed in claim 2, wherein: after the first clamp (2-3) and the second clamp (2-4) are tightly assembled with the eccentric reducing elbow workpiece (1), the included angle of the central axes of the first positioning groove (2-3-1) and the second positioning groove (2-4-1) is equal to the included angle alpha of the two end faces of the eccentric reducing elbow workpiece (1).
4. The eccentric reducing elbow pipe processing clamp according to claim 1, 2 or 3, wherein: the special clamping jaws are characterized in that a positioning clamping jaw (2-5) and a clamping jaw (2-2) are oppositely arranged up and down, and the positioning clamping jaw (2-5) is positioned below the clamping jaw (2-2); the first clamp (2-3) and the second clamp (2-4) in the clamp body are arranged oppositely from top to bottom, a first positioning groove (2-3-1) is formed in the top surface of the first clamp (2-3), and a second positioning groove (2-4-1) is formed in the bottom surface of the second clamp (2-4).
5. The machining fixture for the eccentric reducing elbow pipe as set forth in claim 4, wherein: the inner wall of the workpiece clamping and accommodating cavity (2-6) is matched with the outer surface of the eccentric reducing elbow workpiece (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122396724.0U CN217121789U (en) | 2021-09-30 | 2021-09-30 | Machining clamp for eccentric reducing elbow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122396724.0U CN217121789U (en) | 2021-09-30 | 2021-09-30 | Machining clamp for eccentric reducing elbow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217121789U true CN217121789U (en) | 2022-08-05 |
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ID=82614132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122396724.0U Active CN217121789U (en) | 2021-09-30 | 2021-09-30 | Machining clamp for eccentric reducing elbow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217121789U (en) |
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2021
- 2021-09-30 CN CN202122396724.0U patent/CN217121789U/en active Active
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