CN213857071U - Inner hole turning clamp for thin-wall workpiece - Google Patents
Inner hole turning clamp for thin-wall workpiece Download PDFInfo
- Publication number
- CN213857071U CN213857071U CN202022878121.XU CN202022878121U CN213857071U CN 213857071 U CN213857071 U CN 213857071U CN 202022878121 U CN202022878121 U CN 202022878121U CN 213857071 U CN213857071 U CN 213857071U
- Authority
- CN
- China
- Prior art keywords
- clamp
- auxiliary support
- body support
- thin
- clamp body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Jigs For Machine Tools (AREA)
Abstract
The utility model relates to an inner hole turning clamp for thin-wall workpieces, which comprises a clamp body support, wherein the clamp body support is connected with a machine tool spindle connecting disc through a clamp connecting disc; the inner side of the clamp body support is provided with a lower end auxiliary support, and the lower end auxiliary support comprises a plurality of self-locking oil cylinders which are axially and uniformly distributed on the inner wall of the clamp body support; the end face of the clamp body support is provided with a lateral auxiliary support seat and a lever oil cylinder clamping device, and the lateral auxiliary support seat comprises a plurality of mounting seats for mounting primary guide and upper end auxiliary support; the primary guide and the upper end auxiliary support are both arranged on the inner side of the lateral auxiliary support seat; the lever oil cylinder clamping device comprises a plurality of oil cylinders and levers, the mounting seat, the oil cylinders and the levers are uniformly distributed on the circumference of the end face of the clamp body support, and the end part of the clamp body support is further provided with a workpiece positioning ring. This application converts the direction of the power that anchor clamps add to the axial force, has avoided the product to add in the course of working to hold the deformation, has improved the qualification rate of product.
Description
Technical Field
The utility model belongs to the technical field of machining anchor clamps, especially, relate to a hole car bits adds clamping apparatus of thin wall work piece.
Background
At present, when an inner hole of a thin-wall tubular workpiece is machined by a lathe, because the wall of the thin-wall tubular workpiece is thin and the rigidity is poor, when the workpiece is clamped and clamped by a three-jaw self-centering chuck, if the workpiece is clamped and clamped tightly, the deformation is large; if the clamping is loose, the workpiece cannot be firmly clamped; even if the clamping tightness is proper, the error of the roundness of the inner hole is difficult to overcome. Especially, when the hardness of the processed material is low, the processed finished product can not meet the technical requirements.
When the workpiece is short, the clamp can be designed in an encircling mode, but when the hardness of the material is low, the clamping force of the workpiece cannot overcome the turning force. If the machined workpiece is long, the surrounding clamp is too heavy, the production efficiency is very low, and the technical requirements cannot be met. Therefore, no matter the three-jaw self-centering chuck is adopted for clamping and processing, or the surrounding clamping method is adopted for processing, the roundness of the thin-wall workpiece can hardly meet the technical requirement, and the rejection rate is up to more than 80%.
SUMMERY OF THE UTILITY MODEL
The utility model has the advantages of avoid the product to hold the qualification rate that warp, improve the product in the course of working with.
In order to solve the problems in the background art, the utility model discloses a realize through following technical scheme:
the utility model provides a hole car bits adds clamping apparatus of thin wall work piece, includes: the fixture body support is connected with a machine tool spindle connecting disc through a fixture connecting disc;
the inner side of the clamp body support is provided with a lower end auxiliary support, and the lower end auxiliary support comprises a plurality of self-locking oil cylinders which are axially and uniformly distributed on the inner wall of the clamp body support;
the end face of the clamp body support is provided with a lateral auxiliary support seat and a lever oil cylinder clamping device, and the lateral auxiliary support seat comprises a plurality of mounting seats for mounting primary guide and upper end auxiliary supports; the primary guide and the upper end auxiliary support are both arranged on the inner side of the lateral auxiliary support seat; the lever oil cylinder clamping device comprises a plurality of oil cylinders and a lever, one end of the lever is fixed on the clamp body support, and the other end of the lever is fixedly connected with the oil cylinders; the mounting seat, the oil cylinder and the lever are uniformly distributed on the circumference of the end face of the support of the clamp body;
the end part of the clamp body support is also provided with a workpiece positioning ring, and the central shaft of the workpiece positioning ring is superposed with the central shafts of the clamp body support, the clamp connecting disc and the machine tool spindle connecting disc.
As a further explanation of the utility model:
further, the primary guide includes a plurality of bumper members made of a soft material.
Furthermore, the contact surface of the anti-collision piece and the workpiece is a curved surface.
Furthermore, the upper end auxiliary support comprises a plurality of self-locking oil cylinders which are arranged along the axial direction.
Further, one end of the machine tool spindle connecting disc is fixedly connected with the machine tool spindle, and the other end of the machine tool spindle connecting disc is connected with the clamp connecting disc through a positioning pin.
Furthermore, the lower end auxiliary support comprises six self-locking oil cylinders which are uniformly distributed on the circumference of the inner wall of the support of the clamp body along the axial direction.
Further, the lateral auxiliary supporting seat comprises four mounting seats.
Furthermore, the number of the oil cylinders and the number of the levers of the lever oil cylinder clamping device are four.
Further, the primary guide comprises four anti-collision pieces.
Furthermore, the upper end auxiliary support comprises eight self-locking oil cylinders which are arranged along the axial direction.
Compared with the prior art, the utility model discloses following profitable technological effect has:
1. the utility model discloses a set up side direction auxiliary supporting seat and lever cylinder on anchor clamps body support and step up the device, add the direction of the power that anchor clamps added and hold and convert axial force into thin wall pipe spare hole turning man-hour, avoided adding of product in the course of working to hold the deformation.
2. The upper end auxiliary support, the lower end auxiliary support and the lateral auxiliary support seat are arranged to prevent the workpiece from shaking a cutter in the machining process, enough supporting force is guaranteed, machining deformation is avoided, the qualified rate of products is greatly improved, and the qualified rate of the products reaches more than 99.5%.
3. Quick connection and the separation of lathe main shaft connection pad and anchor clamps connection pad realize the quick replacement of different anchor clamps, and the change time of product is improved within 0.5 minutes by 3 ~ 5 minutes, satisfies the quick trade of product processing and produces, realizes producing the quick switch-over of line production and unit production simultaneously.
Drawings
FIG. 1 is a schematic structural view of an inner hole turning clamp for thin-wall workpieces according to the present invention;
fig. 2 is an exploded view of the inner hole lathing fixture of the thin-wall workpiece of the utility model.
1. A machine tool spindle connecting disc; 2. a clamp connecting disc; 3. a clamp body support; 4. the lower end is supported in an auxiliary way; 5. a lateral auxiliary supporting seat; 6. initial guiding; 7. a lever cylinder clamping device; 8. the upper end is supported in an auxiliary way; 9. and (5) positioning a workpiece.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1-2, an inner bore turning clamp for a thin-walled workpiece comprises: the fixture body support 3 is connected with a machine tool spindle connecting disc 1 through a fixture connecting disc 2;
the inner side of the clamp body support 3 is provided with a lower end auxiliary support 4, and the lower end auxiliary support 4 comprises a plurality of self-locking oil cylinders which are axially and uniformly distributed on the inner wall of the clamp body support 3;
the end face of the clamp body support 3 is provided with a lateral auxiliary support seat 5 and a lever oil cylinder clamping device 7, and the lateral auxiliary support seat 5 comprises a plurality of mounting seats for mounting a primary guide 6 and an upper end auxiliary support 8; the primary guide 6 and the upper end auxiliary support 8 are both arranged on the inner side of the lateral auxiliary support seat 5; the lever oil cylinder clamping device 7 comprises a plurality of oil cylinders and levers, one end of each lever is fixed on the clamp body support 3, and the other end of each lever is fixedly connected with the oil cylinder; the mounting seat, the oil cylinder and the lever are uniformly distributed on the circumference of the end face of the clamp body support 3;
the end part of the clamp body support 3 is also provided with a workpiece positioning ring 9, and the central shaft of the workpiece positioning ring 9 is superposed with the central shafts of the clamp body support 3, the clamp connecting disc 2 and the machine tool spindle connecting disc 1.
Specifically, the machine tool spindle connecting disc 1 is installed on the end face of a spindle of a lathe, is used for connecting a machine tool spindle and a tool fixture, and is a quick-change substrate of the tool fixture. The fixture connecting disc 2 is a bottom plate of the fixture, one end of the machine tool spindle connecting disc 1 is fixedly connected with a machine tool spindle, and the other end of the machine tool spindle connecting disc is connected with the fixture connecting disc 2 through a positioning pin. Machine tool spindle connection pad 1 can with N anchor clamps connection pad 2 quick connection or separation, realize the quick replacement of N anchor clamps to satisfy the flexible processing of processing product, realize producing the quick switch-over of line production and unit production. The workpiece positioning ring 9 is installed at the axial center position of the far end of the clamp body support 3, is concentric with the main shaft of the machine tool, and is a positioning zero point of the X direction, the Y direction and the Z direction of a processed workpiece. The inner hole turning clamp for the thin-wall workpiece consists of the clamp body support 3, the lever oil cylinder clamping device 7 and the workpiece positioning ring 9, the direction of the clamping force of the clamp is changed into the axial direction, and the clamping deformation of the product is avoided.
Further, the primary guide 6 includes a plurality of bumper members made of a soft material.
Furthermore, the contact surface of the anti-collision piece and the workpiece is a curved surface.
Specifically, the primary guide 6 is arranged on the inner side of the end face of the lateral auxiliary support seat 5; the primary guide 6 comprises four anti-collision pieces made of soft materials, and the soft materials can be elastic software materials such as rubber; the primary guide 6 mainly plays a role in guiding and preventing collision during workpiece replacement.
Further, the upper auxiliary support 8 includes a plurality of self-locking cylinders arranged in the axial direction.
Specifically, the upper auxiliary support 8 comprises eight self-locking oil cylinders, and the upper auxiliary support 8 is arranged on the inner side of the lateral auxiliary support seat 5; the upper end auxiliary supports 8 are divided into four groups, and two self-locking oil cylinders in each group are axially arranged and are used for solving the problem that products deform due to cutter back-off in the process of turning scraps.
Further, one end of a machine tool spindle connecting disc 1 is fixedly connected with a machine tool spindle, and the other end of the machine tool spindle connecting disc is connected with a clamp connecting disc 2 through a positioning pin.
Specifically, machine tool spindle connection pad 1 is the basic connection of anchor clamps, and machine tool spindle connection pad 1 can realize the quick replacement of N anchor clamps with N anchor clamps connection pad 2 high-speed joint or separation to satisfy the flexible processing of processing product.
Further, the lower end auxiliary support 4 comprises six self-locking oil cylinders which are uniformly distributed on the circumference of the inner wall of the clamp body support 3 along the axial direction.
Specifically, the clamp body support 3 is a body of the clamp and a base body for mounting the clamp parts. The lower end auxiliary support 4 is arranged between the workpiece positioning ring 9 and the fixture connecting disc 2, and is particularly arranged on the inner side of the fixture body support 3; the lower end auxiliary support 4 comprises six self-locking oil cylinders and is used for solving the problem that products are deformed due to cutter back-off in the process of turning scraps.
Further, the lateral auxiliary support seat 5 includes four mounting seats. The side direction auxiliary supporting seat 5 is installed on the end face of the clamp body support 3 and comprises four installation seats for installing a primary guide 6 and an upper end auxiliary support 8. The four mounting seats are uniformly distributed on the circumference of the end face of the clamp body support 3.
Further, the number of the oil cylinders and the number of the levers of the lever oil cylinder clamping device 7 are four.
Specifically, the lever oil cylinder clamping device 7 is installed on the end face of the fixture body support 3 and comprises four oil cylinders and four levers, one end of each lever is fixed on the fixture body support 3, and the other end of each lever is fixedly connected with the oil cylinder. The lever oil cylinder clamping device 7 is mainly used for axially pressing a processed product, and the direction of the clamping force is ensured to be axial.
Further, the primary guide 6 includes four collision prevention members.
Further, the upper auxiliary support 8 includes eight self-locking cylinders arranged in the axial direction.
The utility model discloses a theory of operation does: when the utility model is used for holding thin-wall workpieces to be processed, each self-locking oil cylinder is in an open state; install anchor clamps connection pad 2 on lathe main shaft connection pad 1 at first, then put into thin wall work piece the utility model discloses an in anchor clamps body support 3. Through the guide effect of the initial guide 6, the thin-wall workpiece is ensured to smoothly enter the clamp body support 3, and meanwhile, the thin-wall workpiece is prevented from colliding with other parts of the clamp. The lever oil cylinder clamping device 7 axially compresses the workpiece, the self-locking oil cylinders of the lower end auxiliary support 4 and the upper end auxiliary support 8 extend out to be propped against the outer circular surface of the thin-wall workpiece, and the self-locking oil cylinders of the lower end auxiliary support 4 and the upper end auxiliary support 8 have opposite force with the thin-wall workpiece. The magnitude of the force is determined by the hardness of the thin-walled workpiece material to ensure that the thin-walled workpiece is not deformed by pressing. Then the self-locking oil cylinders of the lower end auxiliary support 4 and the upper end auxiliary support 8 perform self-locking operation and keep a self-locking state, the workpiece positioning ring 9 is used for finally positioning the thin-wall workpiece, and the workpiece is processed after the positioning is finished. After the workpiece is machined, the self-locking oil cylinders of the lower end auxiliary support 4 and the upper end auxiliary support 8 start to retreat and unlock, and after the retreat of the self-locking oil cylinders is finished, the oil cylinders of the lever oil cylinder clamping devices 7 are opened, so that the workpiece is separated from the clamp body support 3. The utility model discloses flexible operation, convenience, lathe main shaft connection pad 1 can high-speed joint or separation with anchor clamps connection pad 2, realizes the flexible production of product processing.
The embodiments given above are preferred examples for implementing the present invention, and the present invention is not limited to the above-described embodiments. Any non-essential addition and replacement made by the technical features of the technical solution of the present invention by those skilled in the art all belong to the protection scope of the present invention.
Claims (10)
1. The utility model provides a hole car bits adds clamping apparatus of thin wall work piece which characterized in that includes: the fixture body support (3) is connected with a machine tool spindle connecting disc (1) through a fixture connecting disc (2);
the inner side of the clamp body support (3) is provided with a lower end auxiliary support (4), and the lower end auxiliary support (4) comprises a plurality of self-locking oil cylinders which are axially and uniformly distributed on the inner wall of the clamp body support (3);
the end face of the clamp body support (3) is provided with a lateral auxiliary support seat (5) and a lever oil cylinder clamping device (7), and the lateral auxiliary support seat (5) comprises a plurality of mounting seats for mounting a primary guide (6) and an upper end auxiliary support (8); the primary guide (6) and the upper end auxiliary support (8) are both arranged on the inner side of the lateral auxiliary support seat (5);
the lever oil cylinder clamping device (7) comprises a plurality of oil cylinders and levers, one end of each lever is fixed on the clamp body support (3), and the other end of each lever is fixedly connected with the oil cylinder; the mounting seat, the oil cylinder and the lever are uniformly distributed on the circumference of the end face of the clamp body support (3);
the end part of the clamp body support (3) is also provided with a workpiece positioning ring (9), and the central shaft of the workpiece positioning ring (9) coincides with the central shafts of the clamp body support (3), the clamp connecting disc (2) and the machine tool spindle connecting disc (1).
2. The inner bore turning clamp for the thin-walled workpiece as claimed in claim 1, wherein: the primary guide (6) comprises a plurality of anti-collision pieces made of soft materials.
3. The inner bore turning clamp for the thin-walled workpiece as claimed in claim 2, wherein: the contact surface of the anti-collision piece and the workpiece is a curved surface.
4. The inner bore turning clamp for the thin-walled workpiece as claimed in claim 1, wherein: the upper end auxiliary support (8) comprises a plurality of self-locking oil cylinders which are arranged along the axial direction.
5. The inner bore turning clamp for the thin-walled workpiece as claimed in claim 1, wherein: one end of the machine tool spindle connecting disc (1) is fixedly connected with the machine tool spindle, and the other end of the machine tool spindle connecting disc is connected with the clamp connecting disc (2) through a positioning pin.
6. The inner bore turning clamp for the thin-walled workpiece as claimed in claim 1, wherein: the lower end auxiliary support (4) comprises six self-locking oil cylinders which are uniformly distributed on the circumference of the inner wall of the clamp body support (3) along the axial direction.
7. The inner bore turning clamp for the thin-walled workpiece as claimed in claim 1, wherein: the lateral auxiliary supporting seat (5) comprises four mounting seats.
8. The inner bore turning clamp for the thin-walled workpiece as claimed in claim 7, wherein: the number of the oil cylinders and the number of the levers of the lever oil cylinder clamping device (7) are four.
9. The inner bore turning clamp for the thin-walled workpiece as claimed in claim 2, wherein: the primary guide (6) comprises four anti-collision pieces.
10. The inner hole turning clamp for the thin-wall workpiece as claimed in claim 4, wherein: the upper end auxiliary support (8) comprises eight self-locking oil cylinders which are arranged along the axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022878121.XU CN213857071U (en) | 2020-12-04 | 2020-12-04 | Inner hole turning clamp for thin-wall workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022878121.XU CN213857071U (en) | 2020-12-04 | 2020-12-04 | Inner hole turning clamp for thin-wall workpiece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213857071U true CN213857071U (en) | 2021-08-03 |
Family
ID=77041441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022878121.XU Active CN213857071U (en) | 2020-12-04 | 2020-12-04 | Inner hole turning clamp for thin-wall workpiece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213857071U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113732370A (en) * | 2021-09-24 | 2021-12-03 | 三峡大学 | Efficient special fixture for manufacturing semicircular keys and operation method |
-
2020
- 2020-12-04 CN CN202022878121.XU patent/CN213857071U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113732370A (en) * | 2021-09-24 | 2021-12-03 | 三峡大学 | Efficient special fixture for manufacturing semicircular keys and operation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201552451U (en) | Automatic positioning clamp for connecting rod machining | |
| CN102069214B (en) | Clamp for multi-hole drill | |
| CN213857071U (en) | Inner hole turning clamp for thin-wall workpiece | |
| CN102294611A (en) | Clamp for processing small end inclined plane of connecting rod | |
| CN210209459U (en) | Multi-station modularized rapid combination tool for realizing opening of part machining surface | |
| US20100166519A1 (en) | Clamping method for workpieces used for the production of compressor or turbine wheels | |
| CN201483012U (en) | Front/rear end cover tooling fixture of power generator | |
| CN104690582A (en) | Valve body lathe clamp | |
| CN201179565Y (en) | Three-jaw chuck | |
| CN213765004U (en) | Chuck centering tool clamp | |
| CN210306879U (en) | Positioning fixture for machining turbocharger base | |
| CN210818489U (en) | CNC adds clamping apparatus | |
| CN110216497B (en) | Machining tool and machining method for thin-wall special-shaped ring | |
| CN112247635A (en) | Flexible clamp for tightly supporting inner circle of workpiece | |
| CN211219681U (en) | Numerical control machining center frock clamp | |
| CN201366626Y (en) | Fixture for surfacing | |
| CN220944131U (en) | Clamp for turning thin-wall piece | |
| CN209830913U (en) | Frock child anchor clamps, frock child anchor clamps subassembly and lathe for chuck | |
| CN221110810U (en) | Clamping device of turning center | |
| CN210435394U (en) | Flexible revolving body with processing fixture | |
| CN214393353U (en) | Non-shaft part turning positioning fixture | |
| CN209792643U (en) | Tool clamp for machining thin-walled workpiece by numerical control vertical lathe | |
| CN216263684U (en) | Multi-station numerical control milling mandrel rapid clamping platform | |
| CN219484906U (en) | Fixed frock of thin wall ring | |
| CN214263943U (en) | Excircle turning clamp for thin-wall workpiece |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |