CN210334401U - Lathe combined clamp for machining workpiece with local cylindrical surface - Google Patents
Lathe combined clamp for machining workpiece with local cylindrical surface Download PDFInfo
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- CN210334401U CN210334401U CN201921435288.XU CN201921435288U CN210334401U CN 210334401 U CN210334401 U CN 210334401U CN 201921435288 U CN201921435288 U CN 201921435288U CN 210334401 U CN210334401 U CN 210334401U
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Abstract
The utility model relates to a lathe modular fixture for processing local face of cylinder work piece, including the anchor clamps body, characterized by: the fixture body comprises a chuck connected with a lathe spindle, a workpiece positioning disc fixed through the chuck and used for supporting a local cylindrical surface workpiece, a pressing plate tightly attached to the local cylindrical surface workpiece, and a screw rod connected with the workpiece positioning disc and the pressing plate, wherein the chuck, the workpiece positioning disc and the local cylindrical surface workpiece are all coaxial with the lathe spindle, and the maximum rotation diameter of the screw rod around the axis of the lathe spindle is smaller than the diameter of an outer arc surface of the local cylindrical surface workpiece. The problem that a local cylindrical surface workpiece is difficult to clamp can be effectively solved, and the local cylindrical surface workpiece is prevented from deforming in the machining process; the precision control during the finish turning is facilitated; the cutter feeding and retracting during finish turning are convenient, the outer arc surface of the workpiece with the local cylindrical surface can be turned through at one time, and the machining precision and efficiency are improved; and simple structure, the clamping is swift, convenient, is applicable to the processing of most oil machinery cross head products.
Description
Technical Field
The utility model relates to a lathe, concretely relates to lathe modular fixture for processing local face of cylinder work piece.
Background
The peripheral surface of the local cylindrical surface workpiece is composed of a plurality of outer arc surfaces and a plurality of planes, and the plurality of outer arc surfaces are all on the same cylindrical surface; the workpiece with a partially cylindrical surface as shown in fig. 1 and 2 has a circumferential surface formed by two opposite outer arc surfaces and two opposite flat surfaces. The local cylindrical surface workpiece is commonly used in petroleum machinery products, and the part has the characteristics of poor rigidity, easy deformation and the like. Therefore, special technological equipment is often needed during machining to solve the problems that a local cylindrical surface workpiece is difficult to clamp and easy to deform during machining, and therefore a group of lathe combined fixtures needs to be designed for the local cylindrical surface workpiece.
Disclosure of Invention
The utility model aims at providing a lathe modular fixture for processing a local cylindrical surface workpiece, which can effectively solve the problem of difficult clamping of the local cylindrical surface workpiece and avoid the deformation of the local cylindrical surface workpiece in the processing process; the precision control during finishing can be facilitated; positions are reserved for feeding and retracting of a machining cutter, feeding and retracting during finish turning are facilitated, the outer arc surface of the workpiece with the partial cylindrical surface can be directly turned at one time, and machining precision and efficiency are improved; and simple structure, the clamping is swift, convenient, is applicable to the processing of most oil machinery cross head products.
A lathe modular fixture for processing local face of cylinder work piece, including the anchor clamps body, characterized by: the clamp body comprises a chuck, a workpiece positioning disc, a pressing plate and a screw, wherein the chuck is matched and connected with the excircle of one end part of the lathe spindle, the workpiece positioning disc is fixed through the chuck and used for supporting one end part of a local cylindrical surface workpiece, the pressing plate is tightly attached to the other end part of the local cylindrical surface workpiece, the screw is connected with the workpiece positioning disc and the pressing plate, the chuck, the workpiece positioning disc and the local cylindrical surface workpiece are all coaxial with the lathe spindle, and the maximum rotation diameter of the screw around the axis of the lathe spindle is smaller than the diameter of the excircle cambered surface of the local.
Furthermore, the fixture body further comprises a limiting disc and a pull rod, wherein the limiting disc is connected with the other end of the lathe spindle in a matched mode, one end of the pull rod penetrates through an inner hole of the lathe spindle and is connected with the limiting disc in a matched mode, and the other end of the pull rod is connected with the middle of the workpiece positioning disc in a matched mode.
Furthermore, the workpiece positioning disc is a three-step disc with the diameter gradually decreased, the disc with the smallest diameter is matched with the positioning hole at one end of the local cylindrical surface workpiece, the diameter of the middle disc is smaller than the diameter of the outer arc surface of the local cylindrical surface workpiece, and the chuck clamps the disc with the largest diameter of the workpiece positioning disc.
Further, the outer edge of the pressure plate is shorter than the edge of the outer arc surface of the workpiece with the partial cylindrical surface.
Furthermore, a mounting hole is formed in the middle disc of the workpiece positioning disc, and a through hole corresponding to the mounting hole is formed in the pressing plate; one end of the screw rod is connected with the mounting hole in the middle disc of the workpiece positioning disc in a matched mode, and the other end of the screw rod penetrates through the through hole in the pressing plate to be connected with the nut in a matched mode.
Furthermore, the limiting disc is of a two-stage stepped columnar structure, the part with the smaller diameter of the limiting disc is matched with the inner hole of the lathe spindle, and the stepped surface of the limiting disc is closely attached to the end surface of the lathe spindle for limiting.
The utility model discloses profitable technological effect:
because the outer circle of one end part of the lathe spindle is matched and connected with the chuck and the chuck clamping workpiece positioning disc, the local cylindrical surface workpiece is tightly pressed and fixed through the workpiece positioning disc, the pressing plate and the screw rod, the problem of difficult clamping of the local cylindrical surface workpiece can be effectively solved, and the local cylindrical surface workpiece is prevented from deforming in the machining process; the other end of the lathe spindle is connected with the limiting disc in a matched mode, and the workpiece positioning disc is connected with the limiting disc through the pull rod, so that precision control during finish machining can be facilitated; the workpiece positioning disc is a three-stage step disc with the diameter gradually decreased, the diameter of the middle disc is smaller than the diameter of the outer arc surface of the local cylindrical surface workpiece, and the outer edge of the pressing plate is shorter than the edge of the outer arc surface of the local cylindrical surface workpiece, so that positions are reserved for feeding and retracting of a machining cutter, feeding and retracting of the machining cutter during finish turning are facilitated, the outer arc surface of the local cylindrical surface workpiece can be directly turned and communicated at one time, and the machining precision and efficiency are improved; and simple structure, the clamping is swift, convenient, is applicable to the processing of most oil machinery cross head products.
Drawings
FIG. 1 is a schematic view of a partially cylindrical workpiece;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
fig. 3 is a front view of the present invention;
fig. 4 is a top view of the present invention;
fig. 5 is a cross-sectional view of the present invention;
fig. 6 is a right side view of the present invention (press plate, screw not shown);
fig. 7 is a schematic structural view of the workpiece positioning plate.
In the figure: 1-a lathe spindle, 2-a limiting disc, 3-a chuck, 4-a pull rod, 5-a workpiece positioning disc, 6-a pressing plate, 7-a screw and 8-a local cylindrical surface workpiece;
51-mounting holes; 81-locating holes.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
Referring to fig. 3 to 7, a lathe combined fixture for machining a workpiece with a partial cylindrical surface is suitable for finish turning an outer arc surface of a workpiece 8 with a partial cylindrical surface, and includes a fixture body, and is characterized in that: the clamp body comprises a chuck 3, a workpiece positioning disc 5, a pressing plate 6 and a screw 7, wherein the chuck 3 is matched and connected with the excircle of one end part of a lathe spindle 1, the workpiece positioning disc 5 is fixed through the chuck 3 and used for supporting one end part of a local cylindrical surface workpiece 8, the pressing plate 6 is tightly attached to the other end part of the local cylindrical surface workpiece 8, the workpiece positioning disc 5 is connected with the pressing plate 6, the chuck 3, the workpiece positioning disc 5 and the local cylindrical surface workpiece 8 are all coaxial with the lathe spindle 1, and the maximum rotation diameter of the screw 7 around the axial lead of the lathe spindle 1 is smaller than the diameter of the excircle cambered surface of the. The local cylindrical surface workpiece 8 can be reliably fixed on the lathe spindle 1 through the chuck 3, the workpiece positioning disc 5, the pressing plate 6 and the screw 7, the problem that the local cylindrical surface workpiece 8 is difficult to clamp can be effectively solved, and the deformation of the local cylindrical surface workpiece in the machining process can be avoided. The maximum rotation diameter of the screw 7 around the axis of the lathe spindle 1 is smaller than the diameter of the outer arc surface of the workpiece 8 with the partial cylindrical surface, and the main purpose of the device is to prevent the screw 7 from interfering with a machining tool.
The fixture body further comprises a limiting disc 2 and a pull rod 4, wherein the limiting disc 2 is connected with the other end of the lathe spindle 1 in a matched mode, one end of the pull rod 4 penetrates through an inner hole of the lathe spindle 1 and is connected with the limiting disc 2 in a matched mode, and the other end of the pull rod 4 is connected with the middle of the workpiece positioning disc 5 in a matched mode. After the workpiece positioning disc 5 is positioned by the limiting disc 2 and the pull rod 4, the workpiece positioning disc 5 is clamped by the chuck 3, so that the workpiece positioning disc 5 forms a finish turning positioning base, and precision control during finish turning is facilitated.
The workpiece positioning disc 5 is a three-step disc with the diameter gradually decreased, the disc with the smallest diameter is matched with the positioning hole at one end of the local cylindrical surface workpiece 8, the diameter of the middle disc is smaller than the diameter of the outer arc surface of the local cylindrical surface workpiece 8, and the chuck 3 clamps the disc with the largest diameter of the workpiece positioning disc 5. A disc with the smallest diameter of the workpiece positioning disc 5 is in clearance fit with 81 positions of positioning holes at one end of the local cylindrical surface workpiece 8, and the fit clearance is 0.02mm-0.04 mm; the diameter of the middle disc is 20mm-30mm smaller than the diameter of the outer arc surface of the local cylindrical surface workpiece 8, so that the cutter is withdrawn during finish turning; the diameter of the circular disc with the largest diameter of the workpiece positioning disc 5 is 40mm larger than the diameter of the outer arc surface of the partial cylindrical surface workpiece 8, so that the chuck 3 can be used for effective clamping.
The outer edge of the pressure plate 6 is shorter than the outer arc surface edge of the partial cylindrical surface workpiece 8. So as to facilitate the feeding during finish turning.
A mounting hole 51 is formed in the middle disc of the workpiece positioning disc 5, and a through hole corresponding to the mounting hole 51 is formed in the pressing plate 6; one end of the screw 7 is matched and connected with a mounting hole 51 on the middle disc of the workpiece positioning disc 5, and the other end of the screw passes through a through hole on the pressing plate 6 and is matched and connected with the nut 9.
The limiting disc 2 is of a two-stage stepped columnar structure, the part with the smaller diameter is matched with an inner hole of the lathe spindle 1, and the stepped surface is closely attached to the end surface of the lathe spindle 1 for limiting.
The chuck 3 is generally a three-jaw chuck or a four-jaw chuck.
The utility model can avoid the deformation of the local cylindrical surface workpiece 8 in the processing process, and improve the processing precision and the stability and reliability in processing; meanwhile, positions are reserved for feeding and retracting of a machining cutter, the outer arc surface of the workpiece 8 with the partial cylindrical surface can be directly turned and communicated at one time, and machining precision and efficiency are improved; and simple structure, the clamping is swift, convenient, is applicable to the processing of most oil machinery cross head products.
Claims (6)
1. The utility model provides a lathe modular fixture for processing local face of cylinder work piece, includes the anchor clamps body, characterized by: the clamp body comprises a chuck (3) which is matched and connected with the excircle of one end of a lathe spindle (1), a workpiece positioning disc (5) which is fixed through the chuck (3) and used for supporting one end of a local cylindrical surface workpiece (8), a pressing plate (6) which is tightly attached to the other end of the local cylindrical surface workpiece (8), and a screw (7) which is connected with the workpiece positioning disc (5) and the pressing plate (6), wherein the chuck (3), the workpiece positioning disc (5) and the local cylindrical surface workpiece (8) are all coaxial with the lathe spindle (1), and the maximum rotation diameter of the screw (7) around the axial lead of the lathe spindle (1) is smaller than the diameter of the excircle cambered surface of the local cylindrical surface workpiece (8).
2. The turning lathe combined clamp for machining the workpiece with the partial cylindrical surface as claimed in claim 1, wherein: the fixture body further comprises a limiting disc (2) which is connected with the other end of the lathe spindle (1) in a matched mode, and a pull rod (4) of which one end penetrates through an inner hole of the lathe spindle (1) and is connected with the limiting disc (2) in a matched mode, and the other end of the pull rod (4) is connected with the middle of the workpiece positioning disc (5) in a matched mode.
3. The turning lathe combined clamp for machining the workpiece with the partial cylindrical surface according to claim 1 or 2, which is characterized in that: the workpiece positioning disc (5) is a three-step disc with the diameter gradually decreased, the disc with the smallest diameter is matched with the positioning hole at one end of the local cylindrical surface workpiece (8), the diameter of the middle disc is smaller than the diameter of the outer arc surface of the local cylindrical surface workpiece (8), and the chuck (3) clamps the disc with the largest diameter of the workpiece positioning disc (5).
4. The turning lathe combined clamp for machining the workpiece with the partial cylindrical surface as claimed in claim 3, wherein: the outer edge of the pressure plate (6) is shorter than the edge of the outer arc surface of the partial cylindrical surface workpiece (8).
5. The turning lathe combined clamp for machining the workpiece with the partial cylindrical surface as claimed in claim 4, wherein: a mounting hole (51) is formed in the middle disc of the workpiece positioning disc (5), and a through hole corresponding to the mounting hole (51) is formed in the pressing plate (6); one end of the screw rod (7) is matched and connected with a mounting hole (51) in the middle disc of the workpiece positioning disc (5), and the other end of the screw rod penetrates through a through hole in the pressing plate (6) to be matched and connected with the nut (9).
6. The turning lathe combined clamp for machining the workpiece with the partial cylindrical surface as claimed in claim 2, wherein: the limiting disc (2) is of a two-stage stepped columnar structure, the part with the smaller diameter is matched with an inner hole of the lathe spindle (1), and the step surface is closely attached to the end surface of the lathe spindle (1) for limiting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921435288.XU CN210334401U (en) | 2019-08-31 | 2019-08-31 | Lathe combined clamp for machining workpiece with local cylindrical surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921435288.XU CN210334401U (en) | 2019-08-31 | 2019-08-31 | Lathe combined clamp for machining workpiece with local cylindrical surface |
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| Publication Number | Publication Date |
|---|---|
| CN210334401U true CN210334401U (en) | 2020-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921435288.XU Active CN210334401U (en) | 2019-08-31 | 2019-08-31 | Lathe combined clamp for machining workpiece with local cylindrical surface |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113020641A (en) * | 2021-03-16 | 2021-06-25 | 彩虹集团有限公司 | Refractory material product machining clamp and machining method based on same |
| CN113245567A (en) * | 2021-06-03 | 2021-08-13 | 哈尔滨汽轮机厂有限责任公司 | Thin-wall end cover turning anti-deformation auxiliary tool and turning method |
| RU2811023C1 (en) * | 2023-03-07 | 2024-01-10 | Акционерное Общество "Уфимское агрегатное производственное объединение"(АО"УАПО") | Clamping device for electrical busbar turning |
-
2019
- 2019-08-31 CN CN201921435288.XU patent/CN210334401U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113020641A (en) * | 2021-03-16 | 2021-06-25 | 彩虹集团有限公司 | Refractory material product machining clamp and machining method based on same |
| CN113245567A (en) * | 2021-06-03 | 2021-08-13 | 哈尔滨汽轮机厂有限责任公司 | Thin-wall end cover turning anti-deformation auxiliary tool and turning method |
| RU2811023C1 (en) * | 2023-03-07 | 2024-01-10 | Акционерное Общество "Уфимское агрегатное производственное объединение"(АО"УАПО") | Clamping device for electrical busbar turning |
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