CN214770363U - Static pressure centre frame of processing high accuracy - Google Patents
Static pressure centre frame of processing high accuracy Download PDFInfo
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- CN214770363U CN214770363U CN202120937266.4U CN202120937266U CN214770363U CN 214770363 U CN214770363 U CN 214770363U CN 202120937266 U CN202120937266 U CN 202120937266U CN 214770363 U CN214770363 U CN 214770363U
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- 230000003068 static effect Effects 0.000 title claims abstract description 13
- 238000003754 machining Methods 0.000 claims description 5
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 230000002706 hydrostatic effect Effects 0.000 claims 1
- 210000005056 cell body Anatomy 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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Abstract
The utility model discloses a static pressure centre frame for processing high precision, which belongs to the technical field of rotary shaft workpiece positioning, solves the problem that a roller frame supports a workpiece, the rotation precision of the roller can not reach the workpiece dimension and the geometric tolerance processing requirement, and provides a static pressure centre frame for processing high precision, which comprises an upper support and a lower support, wherein the upper support and the lower support are provided, one end of the upper support is hinged with one end of the lower support, the other end of the upper support is connected with the other end of the lower support through a locking component, the locking component comprises a hinged support, a limit boss, a hand wheel and a first fine tuning screw rod, in order to position the workpieces with different diameters, one end of the upper support is hinged with one end of the lower support to form an openable combination, and finally, the other end of the upper support is fixedly connected with the other end of the lower support through the locking component, the clamping of the workpiece with the diameter larger than or equal to the diameter of the upper support and the lower support shaft can be met.
Description
Technical Field
The utility model belongs to the technical field of gyration axle type work piece location, specifically be a static pressure centre frame of processing high accuracy.
Background
In the field of machining, a center frame is an accessory required for machining large-tonnage and large-diameter workpieces. In practical production, some high-precision slender rotating shaft workpieces can be encountered, and if tailstock centers are adopted for jacking and processing during processing, the workpieces are easy to deform. The existing closed type roller center frame comprises a roller center frame body, a roller sleeve and a roller arranged on the roller sleeve, the position of the roller sleeve can be adjusted by adjusting an adjusting bolt, a workpiece is adjusted to the center of the workpiece to coincide with the center of a machine tool, the roller sleeve is fixed by manually screwing a locking nut, and a machine tool chuck drives the workpiece to roll on the roller during operation so as to turn an excircle and an end face. However, since the roller frame supports the workpiece, the rotation precision of the roller cannot meet the requirements for machining the size and form and location tolerance of the workpiece, and therefore a suitable center frame is required to be adopted to clamp workpieces with different diameters more accurately.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a static pressure centre frame of processing high accuracy solves the gyro wheel frame and carries out the bearing to the work piece, and the rotational accuracy of gyro wheel self can't reach work piece size and geometric tolerances processing requirement problem.
The utility model adopts the technical scheme as follows:
a static pressure center frame for processing high precision comprises a center frame body, wherein the center frame body comprises an upper support and a lower support, the upper support and the lower support are hinged, one end of the upper support is hinged with one end of the lower support, and the other end of the upper support is connected with the other end of the lower support through a locking assembly;
the locking assembly comprises a hinged support, a limiting boss, a hand wheel and a first fine adjustment screw rod, the hinged support is connected to the lower supporting body surface, one end of the first fine adjustment screw rod is hinged to the hinged support, the other end of the first fine adjustment screw rod penetrates through the limiting boss to be in threaded connection with the hand wheel, and the limiting boss is connected to the side face of the upper supporting body.
Preferably, support blocks are provided inside both the upper and lower supports.
Preferably, limiting components for adjusting the protruding height of the supporting block are arranged in the upper support and the lower support.
Preferably, the limiting assemblies are provided in four groups, and the four groups are symmetrically arranged about the central axis of the upper support and the central axis of the lower support.
Preferably, the limiting assembly comprises a second fine adjustment screw rod, a limiting block and a flange plate, and a first limiting groove for accommodating the limiting block and a second limiting groove for accommodating the flange plate are formed in the upper support and the lower support; the second fine adjustment screw rod penetrates through the limiting block to be in threaded connection with the flange plate, the bottom of the flange plate is connected with the supporting block, and the limiting block is rotatably connected to the second fine adjustment screw rod.
Preferably, the groove body of the second limiting groove is parallel to the axis of the second fine adjustment screw rod, the length of the groove body is larger than the thickness of the flange plate, and the second fine adjustment screw rod stretches into the groove body of the second limiting groove, and the length of the second fine adjustment screw rod is larger than the length of the second limiting groove.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. in order to solve the problems that a roller frame supports a workpiece, and the rotation precision of a roller cannot meet the processing requirement of the size and form and location tolerance of the workpiece, an upper support and a lower support are designed to clamp the workpiece, one end of the upper support is hinged with one end of the lower support, the other end of the upper support is connected with the other end of the lower support through a locking assembly, so that the positioning and clamping of the workpiece are completed, in order to position the workpieces with different diameters, one end of the upper support is hinged with one end of the lower support to form an openable combination, the other end of the upper support is fixedly connected with the other end of the lower support through the locking assembly, and the clamping of the workpiece with the diameter larger than or equal to the diameter of an upper support shaft and the lower support shaft can be met.
2. The supporting shoe body surface can adopt the shape to be "V" the cross-section, is more convenient for fix a position the work piece, and the supporting shoe that the body surface is "V" the cross-section has reduced the area of contact with the work piece, increases the frictional force of contact point, so more stable.
3. A limiting component for adjusting the protruding height of the supporting block is arranged; the arranged limiting component controls the protruding height of the supporting block on the upper support and the lower support inner ring, so that the workpiece smaller than the shaft diameter of the upper support and the lower support is clamped; in order to provide better stability, spacing subassembly is provided with four groups, rotate second fine setting lead screw and regard as the support at first spacing inslot with the stopper that alternates second fine setting lead screw, the ring flange on the second fine setting lead screw slides along second fine setting lead screw axis direction at second spacing inslot, the supporting shoe that can drive the ring flange and connect is flexible consequently to accomplish the work piece centre gripping to the minor diameter in the axle center department of center support body, secondly the lead screw precision of above-mentioned adoption is more accurate, the staff of being convenient for adjusts the position of supporting shoe, make it support and lean on and substitute the machined part body surface, spacing subassembly controls the protruding height of supporting shoe and makes the position calibration on the support of rotatable lower support in advance, the slope that the machined part that the prevention was put takes place.
Drawings
Fig. 1 is a schematic view of the overall three-dimensional structure of the present invention;
fig. 2 is a sectional view of the overall structure of the present invention.
The labels in the figure are: 1. a central frame body; 2. a limiting component; 3. an upper support; 4. a lower support; 5. a support block; 6. hinging seat; 7. a limiting boss; 8. a hand wheel; 9. a first fine tuning screw rod; a locking assembly; 10. a second fine tuning screw rod; 11. a first limit groove; 12. a flange plate; 13. a second limit groove 14 and a limit block.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention 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 invention.
Example 1:
as shown in fig. 1 and 2, a static pressure center frame for processing high precision comprises a center frame body 1, wherein the center frame body 1 comprises an upper support 3 and a lower support 4, the upper support 3 and the lower support 4 are hinged, one end of the upper support 3 is hinged with one end of the lower support 4, and the other end of the upper support 3 is connected with the other end of the lower support 4 through a locking assembly; the locking assembly comprises a hinged support 6, a limiting boss 7, a hand wheel 8 and a first fine adjustment screw rod 9, the hinged support 6 is connected to the body surface of the lower support 4, one end of the first fine adjustment screw rod 9 is hinged to the hinged support 6, the other end of the first fine adjustment screw rod 9 penetrates through the limiting boss 7 to be in threaded connection with the hand wheel 8, and the limiting boss 7 is connected to the side surface of the upper support 3.
Among the above-mentioned structure, in order to solve the gyro wheel frame and carry out the bearing to the work piece, the rotation accuracy of gyro wheel self can't reach work piece size and geometric tolerances processing requirement problem, design center support body 1 includes support 3 and support 4 down and carry out the centre gripping to the work piece through center support body 1, wherein, the one end of upper support 3 is articulated mutually with the one end of support 4 down, the other end of upper support 3 passes through locking Assembly with the other end of support 4 down and is connected, the completion is to work piece location centre gripping, in order to satisfy and fix a position the work piece of different diameters size, the one end of upper support 3 is articulated mutually with the one end of support 4 down, form the combination that can open and shut, and pass through locking Assembly fixed connection at the other end of upper support 3 and the other end of support 4 down, the principle is as follows: the upper support 3 is welded with a limiting boss 7, a hinged support 6 is fixed on the lower support 4 through a fastener below the limiting boss 7, the hinged support 6 is hinged with one end of a first fine adjustment screw rod 9, the other end of the first fine adjustment screw rod 9 penetrates through the limiting boss 7, finally, a hand wheel 8 sleeved on the first fine adjustment screw rod 9 is rotated, the upper support 3 moves towards the lower support 4 by rotating the hand wheel 8 because the first fine adjustment screw rod 9 and the hand wheel 8 are in threaded connection, and the workpiece placed between the upper support 3 and the lower support 4 is clamped and fixed, and the clamping process meets the requirement of workpiece clamping of the axial diameter of the upper support 3 and the axial diameter of the lower support 4.
Example 2:
the present embodiment is developed on the basis of embodiment 1, as shown in fig. 1, the support blocks 5 are respectively arranged on the inner sides of the upper support 3 and the lower support 4, the positions of the support blocks 5 are limited according to the arrangement positions, meanwhile, the body surface of the support block 5 can adopt the section with the shape of "V", which is more convenient for positioning the workpiece, and the support block 5 with the section with the body surface of "V" reduces the contact area with the workpiece, increases the friction force of the contact point, and is more stable.
Example 3:
the embodiment is developed on the basis of the embodiment 2, and as shown in fig. 1 and 2, the upper support 3 and the lower support 4 are both provided with the limiting assemblies 2 for adjusting the protruding heights of the supporting blocks 5; the arranged limiting component 2 controls the protruding height of the inner ring of the upper support 3 and the lower support 4 of the supporting block 5, and the requirement of clamping workpieces smaller than the shaft diameter of the upper support 3 and the lower support 4 is met; in order to provide better stability, the limiting assembly 2 is provided with four groups, and the four groups are symmetrically arranged about the axis of the upper support 3 and the lower support 4; wherein, two groups of limiting components 2 are symmetrically arranged on the upper support 3, and the other two groups of limiting components 2 are symmetrically arranged on the lower support 4; the specific structure that spacing subassembly 2 adopted is as follows: the limiting assembly 2 comprises a second fine adjustment screw rod 10, a limiting block 14 and a flange plate 12, wherein a first limiting groove 11 for accommodating the limiting block 14 and a second limiting groove 13 for accommodating the flange plate 12 are formed in the upper support 3 and the lower support 4; the second fine adjustment screw rod 10 penetrates through a limiting block 14 to be in threaded connection with a flange plate 12, the bottom of the flange plate 12 is connected with the supporting block 5, and the limiting block 14 is rotatably connected to the second fine adjustment screw rod 10; the principle is as follows: manually rotating the second fine adjustment screw rod 10 and using a limiting block 14 inserted through the second fine adjustment screw rod 10 as a support in the first limiting groove 11, in order to ensure that the limiting block 14 is connected with the second fine adjustment screw rod 10 and simultaneously limit the position of the second fine adjustment screw rod 10, the limiting block 14 can specifically use a bearing seat, the second fine adjustment screw rod 10 passes through the axis of the bearing seat and is welded on the second fine adjustment screw rod 10 together with the axis of the bearing seat, a supporting block 5 is fixedly connected on a flange 12 in threaded connection with the second fine adjustment screw rod 10, and the flange 12 is in sliding connection with the second limiting groove 13, so that the flange 12 on the second fine adjustment screw rod 10 is rotated to slide in the second limiting groove 13 along the axial lead direction of the second fine adjustment screw rod 10, and the supporting block 5 connected with the flange 12 can be driven to stretch out and draw back at the axis of the center frame body; the cell body of second spacing groove 13 is parallel along second fine setting lead screw 10 axis, and the length of cell body is greater than ring flange 12 thickness, second fine setting lead screw 10 stretches into the length that is greater than the length in the cell body of second spacing groove 13, ensure the space that ring flange 12 can move at second spacing groove 13 orientation, and, can also restrict the flange dish and can not break away from second spacing groove 13, second spacing groove 13 cooperation ring flange 12 orientation is removed and is restricted flange dish 12 and follow second fine setting lead screw 10 and rotate, so specifically can adopt the spout of second spacing groove 13 prism, and ring flange 12 appearance and spout looks adaptation.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. A static pressure center frame with high processing precision comprises a center frame body (1), and is characterized in that the center frame body (1) comprises an upper support (3) and a lower support (4), the upper support (3) and the lower support (4) are connected, one end of the upper support (3) is hinged with one end of the lower support (4), and the other end of the upper support (3) is connected with the other end of the lower support (4) through a locking assembly;
locking Assembly includes free bearing (6), spacing boss (7), hand wheel (8), first fine setting lead screw (9), free bearing (6) are connected under on supporting (4) body surface, first fine setting lead screw (9) one end is articulated with free bearing (6), first fine setting lead screw (9) other end passes spacing boss (7) and hand wheel (8) threaded connection, spacing boss (7) are connected in last supporting (3) side.
2. Hydrostatic steady rest with high precision according to claim 1, characterized in that support blocks (5) are provided inside the upper support (3) and the lower support (4).
3. The static pressure center frame for processing high precision according to claim 2, characterized in that a limiting component (2) for adjusting the protruding height of the supporting block (5) is arranged in each of the upper support (3) and the lower support (4).
4. The static pressure center frame for machining high precision according to claim 3 is characterized in that the limiting assemblies (2) are provided with four groups, and the four groups are symmetrically arranged about the central axis of the upper support (3) and the lower support (4).
5. The static pressure center frame with high machining precision according to claim 4, wherein the limiting assembly (2) comprises a second fine adjustment screw rod (10), a limiting block (14) and a flange plate (12), and a first limiting groove (11) for accommodating the limiting block (14) and a second limiting groove (13) for accommodating the flange plate (12) are formed in the upper support (3) and the lower support (4); the second fine adjustment screw rod (10) penetrates through a limiting block (14) to be in threaded connection with the flange plate (12), the bottom of the flange plate (12) is connected with the supporting block (5), and the limiting block (14) is rotatably connected to the second fine adjustment screw rod (10).
6. The static pressure center frame for processing high precision according to claim 5, characterized in that the groove bodies of the second limit grooves (13) are parallel along the axis of the second fine tuning screw rod (10), the length of the groove bodies is greater than the thickness of the flange (12), and the second fine tuning screw rod (10) extends into the groove bodies of the second limit grooves (13) for a length greater than the length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120937266.4U CN214770363U (en) | 2021-04-30 | 2021-04-30 | Static pressure centre frame of processing high accuracy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120937266.4U CN214770363U (en) | 2021-04-30 | 2021-04-30 | Static pressure centre frame of processing high accuracy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214770363U true CN214770363U (en) | 2021-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120937266.4U Expired - Fee Related CN214770363U (en) | 2021-04-30 | 2021-04-30 | Static pressure centre frame of processing high accuracy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214770363U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114905313A (en) * | 2022-04-25 | 2022-08-16 | 山东大学 | Active-passive composite self-adaptive static pressure supporting device for precise machining of rod barrel |
-
2021
- 2021-04-30 CN CN202120937266.4U patent/CN214770363U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114905313A (en) * | 2022-04-25 | 2022-08-16 | 山东大学 | Active-passive composite self-adaptive static pressure supporting device for precise machining of rod barrel |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211119 |