CN213225799U - Adjustable support for improving machining precision of long shaft piece - Google Patents
Adjustable support for improving machining precision of long shaft piece Download PDFInfo
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- CN213225799U CN213225799U CN202021164535.XU CN202021164535U CN213225799U CN 213225799 U CN213225799 U CN 213225799U CN 202021164535 U CN202021164535 U CN 202021164535U CN 213225799 U CN213225799 U CN 213225799U
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Abstract
The adjustable support comprises a guide rod, a transmission pin, an adjusting stud, a self-aligning ball bearing, a pressure arm, a support pin, a locking pin and a center frame body, wherein the center frame body is a steel-structured horizontal seat, an upward-opening semicircular support is fixed on the horizontal seat, the left end and the right end of the semicircular support are connected with vertical left and right adjusting studs which shoot upwards, an arc pressure arm is installed between the left and right adjusting studs, and the semicircular support, the left and right adjusting studs and the arc pressure arm form a closed ring type; arc or plane supports are arranged at the positions of 12 points, 4 points and 8 points of the closed ring; the three-arc or plane support protrudes out of the inner circular ring of the closed ring; the circle center of the three-arc or plane support is the circle center of the workpiece clamped by the tool.
Description
Technical Field
The utility model relates to a machining's frock clamp especially provides an improve adjustable support of major axis spare machining precision.
Background
Because the long shaft piece in the aircraft engine belongs to a difficult-to-machine piece, in particular to the processing of a slotted hole spline on the long shaft piece, the requirement on the clamping rigidity of a part to be processed is higher. The existing medium-long shaft part is provided with a frame for supporting the center of the medium-long shaft part, but the existing supporting frame can not ensure the clamping rigidity.
Therefore, an adjustable bracket for improving the machining precision of the long shaft part needs to be developed, the clamping rigidity of the machined part can be kept, and the higher requirement in machining is met; the clamping device is simple and convenient to operate in the using process, can ensure the machining precision, can ensure the clamping rigidity requirement of machining of the long shaft part in the aero-engine, improves the labor productivity and the quality, brings convenience to tool management work of a production field, and reduces the waste of machining cost.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the purpose to above-mentioned problem, provides an adjustable support that is fit for major axis spare processing. The clamping rigidity requirement for machining of the long shaft piece in the aircraft engine can be guaranteed. The utility model discloses mainly consider with the size precision requirement of current equipment and part during the design, can guarantee the processing requirement of part, can improve productivity again, simple manufacture, maintenance convenience moreover, anchor clamps manufacturing cost are lower.
The technical scheme of the utility model, improve the adjustable support of major axis spare machining precision, including the guide bar, the driving pin, the adjustment double-screw bolt, the aligning ball bearing presses the arm, the bracing pin, the locking pin, the center frame body is the horizontal seat of a steel construction, fixes the semicircle type support of upwards opening on the horizontal seat, and the left and right ends of semicircle type support all connect vertical shoot to go up left and right sides adjustment double-screw bolt, installs an arc between the left and right adjustment double-screw bolt and presses the arm, and semicircle type support, left and right sides adjustment double-screw bolt and arc press the arm and constitute the closed circle type; arc or plane supports are arranged at the positions of 12 points, 4 points and 8 points of the closed ring; the three-arc or plane support protrudes out of the inner circular ring of the closed ring; the circle center of the three-arc or plane support is the circle center of the workpiece clamped by the tool.
The up-down regulation arc-shaped pressure arm of the spiral structure of the left-right regulation stud is adjusted in position by 12 points; the arc or plane support is arranged at the front end of a guide rod which can be adjusted to be telescopic, the positions of 4 points and 8 points can be adjusted and determined through the structure of the spiral sleeve, the arc or plane support is arranged, and the three supports are used for fixing a workpiece.
The adjustable support that improves major axis spare machining precision, promote the guide bar through feeding screw thread (screw rod and the telescopic structure of nut), by the self-aligning ball bearing support work piece on the guide bar, lock the locking screw again, compress tightly the guide bar on the centre frame body through the copper bar, the rethread regulation left and right sides adjustment double-screw bolt will press the arm to adjust to suitable position, through the double-screw bolt, nut and spherical washer will press the arm to push down, push down the work piece by the self-aligning ball bearing on pressing the arm to the centre gripping work piece.
When the clamping device is used, the diameter of the stud and the length of the stud are adjusted left and right to clamp long shaft pieces with different diameters.
The utility model has the advantages that: the positions of 12 points, 4 points and 8 points of the closed ring of the utility model are all provided with arc or plane supports which are rigidly fixed and can conveniently adjust the diameter of the clamping workpiece; the utility model has low requirement on the processing precision in the manufacturing process and the processing equipment is simple; the application range is wide, the clamp is suitable for processing most long shaft pieces, waste of materials for processing multiple pairs of clamps is effectively avoided, the clamp design and production cost is reduced, and meanwhile, the management space of a tool clamp on a production site is greatly saved; the use is quick convenient, labour saving and time saving, again can effectual centre gripping rigidity and the machining precision of guaranteeing the part.
Drawings
FIG. 1 is a 2D diagram of an adjustable support for improving the machining precision of a long shaft part according to the present invention;
fig. 2 is a schematic view of the adjustable support P of fig. 1.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings: as shown in fig. 1, the frock include 1 guide bar, 2 driving pins, 3 adjustment double-screw bolts, 4 self-aligning ball bearings, 5 arms press, 6 support pins, 7 lock pins, 8 centre frame bodies, 9 spherical washers, 10 nuts, 11 double-screw bolts, 12 locating cover boards, 13 hexagon socket head cap screws, 14 feed screws, 15 copper bars.
The center frame body is a steel-structured horizontal seat, an upward-opening semicircular bracket is fixed on the horizontal seat, the left end and the right end of the semicircular bracket are connected with vertical left and right adjusting studs which shoot upwards, an arc-shaped pressure arm is installed between the left and right adjusting studs, and the semicircular bracket, the left and right adjusting studs and the arc-shaped pressure arm form a closed ring type; arc or plane supports are arranged at the positions of 12 points, 4 points and 8 points of the closed ring; the three-arc or plane support protrudes out of the inner circular ring of the closed ring; the circle center of the three-arc or plane support is the circle center of the workpiece clamped by the tool.
The arc or plane support is arranged at the front end of a guide rod which can be adjusted to be telescopic, and the left and right adjusting stud is also a structure which can be adjusted up and down; the end part of the left adjusting stud end is provided with a pin shaft connecting structure, and the arc-shaped pressure arm is connected with the right adjusting stud through a stud nut; the up-down regulation arc-shaped pressure arm of the spiral structure of the left-right regulation stud is adjusted in position by 12 points; the arc or plane support is arranged at the front end of a guide rod which can be adjusted to be telescopic, the positions of 4 points and 8 points can be adjusted and determined through the structure of the spiral sleeve, the arc or plane support is arranged, and the three supports are used for fixing a workpiece; an inner ring which is protruded out of the closed ring shape is supported by a three-arc or plane; the circle center of the three-arc or plane support is the circle center of the workpiece clamped by the tool. The arc or flat supports are in direct contact with the workpiece. The center frame body and the guide rod need to be matched well, and attention is paid to gaps. The sphere of spherical washer and press arm contact needs to control the cooperation well, and the cooperation requirement is noticed with guide bar and self-aligning ball bearing to the dowel pin.
Be applicable to the major axis processing of more size of a dimension, the utility model discloses a major axis class parts machining suitable for multiple size, size can not cause the waste of processing cost, the on-the-spot frock management of being convenient for production.
Claims (3)
1. The adjustable support is characterized by comprising a guide rod, a transmission pin, an adjusting stud, a self-aligning ball bearing, a press arm, a support pin, a locking pin, a center frame body, wherein the center frame body is a steel-structured horizontal seat, an upward-opening semicircular support is fixed on the horizontal seat, the left end and the right end of the semicircular support are connected with vertical shooting upward left and right adjusting studs, an arc press arm is installed between the left and right adjusting studs, and the semicircular support, the left and right adjusting studs and the arc press arm form a closed ring type; arc or plane supports are arranged at the positions of 12 points, 4 points and 8 points of the closed ring; the three-arc or plane support protrudes out of the inner circular ring of the closed ring; the circle center of the three-arc or plane support is the circle center of the workpiece clamped by the tool.
2. The adjustable support for improving the machining precision of the long shaft member as claimed in claim 1, wherein the arc or plane support is arranged at the front end of a guide rod capable of adjusting extension and contraction, and the left and right adjusting stud is also a structure capable of adjusting up and down; the left side adjustment stud end tip is round pin axle connection structure, and the arc presses the arm to pass through stud nut and be connected with the right adjustment stud.
3. The adjustable bracket for improving the machining precision of the long shaft member according to claim 1, wherein the position of the upper and lower adjusting arc pressure arm of the screw structure of the left and right adjusting stud bolt adjusts the upper and lower positions of 12 points; the arc or plane support is arranged at the front end of a guide rod which can be adjusted to be telescopic, the arc or plane support is arranged at the positions of 4 points and 8 points determined by the structural adjustment of the spiral sleeve, and the three supports are used for fixing a workpiece; an inner ring which is protruded out of the closed ring shape is supported by a three-arc or plane; the circle center of the three-arc or plane support is the circle center of a workpiece clamped by the tool; the arc or flat supports are in direct contact with the workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021164535.XU CN213225799U (en) | 2020-06-22 | 2020-06-22 | Adjustable support for improving machining precision of long shaft piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021164535.XU CN213225799U (en) | 2020-06-22 | 2020-06-22 | Adjustable support for improving machining precision of long shaft piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213225799U true CN213225799U (en) | 2021-05-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021164535.XU Active CN213225799U (en) | 2020-06-22 | 2020-06-22 | Adjustable support for improving machining precision of long shaft piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213225799U (en) |
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2020
- 2020-06-22 CN CN202021164535.XU patent/CN213225799U/en active Active
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