CN212526163U - Large-diameter ultra-deep hole machining positioner - Google Patents
Large-diameter ultra-deep hole machining positioner Download PDFInfo
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- CN212526163U CN212526163U CN202020609378.2U CN202020609378U CN212526163U CN 212526163 U CN212526163 U CN 212526163U CN 202020609378 U CN202020609378 U CN 202020609378U CN 212526163 U CN212526163 U CN 212526163U
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Abstract
A large-diameter ultra-deep hole machining positioner belongs to the technical field of boring machine machining auxiliary tools and is used for positioning a boring machine spindle. The technical scheme is as follows: the four supports are respectively welded on the four sides of the circumference of the sleeve, the four bolt adjusting fixing blocks are respectively welded at the front ends of the four supports, an adjusting screw hole is formed in the center of each bolt adjusting fixing block, a copper sleeve is sleeved in an inner hole of the sleeve, the inner hole of the copper sleeve is matched with the outer diameter of a spindle of the boring machine, four adjusting bolts are respectively screwed in the adjusting screw holes of the bolt adjusting fixing blocks, nuts of the adjusting bolts are located in a frame of the supports, screws of the adjusting bolts are located on the outer sides of the bolt adjusting fixing blocks, screw holes are formed in the rear ends of the adjustable positioning blocks and matched with threads of the adjusting bolts, and the. The utility model has the advantages of being simple in structure and convenient in operation, solved the work piece before processing and processing add the location inaccurate, the problem that machining efficiency is low has improved the machining precision, has guaranteed product quality to operation security has been improved.
Description
Technical Field
The utility model relates to a major diameter super deep hole processing locator belongs to boring machine processing appurtenance technical field.
Background
In the mechanical processing process, the processing of the holes and the hole systems is generally carried out by using a common boring machine or a numerical control boring machine, and the boring machine drives a boring rod to implement the processing by rotating a main shaft to meet the drawing requirements. With the development of industrial technology, more and more finished parts with large diameter and bore diameters are required, for example, a screw-down cylinder hole needs to be machined at the upper part of a certain size of rolling mill stand, the bore diameter is 830/1250H9(+0.26/0) mm, the full length depth is 2300(1340/960) mm, the cylindricity is 0.2mm, the coaxiality is 0.2mm, the surface roughness reaches Ra1.6 mu m after machining, and the local R part is Ra0.8 mu m. The workpiece has not been able to meet the accuracy requirements by conventional machining methods.
The inner hole of the workpiece is too large and too deep, so that the processing difficulty is very high, the main problem is how to keep the processing precision of the product to meet the design requirement, and the processing precision of the large-diameter ultra-deep hole is required to be controlled in real time so as to ensure the processing precision and the operation safety. However, no special tool is available at present for positioning control of large-diameter ultra-deep hole machining, and the machining accuracy is difficult to guarantee, so that an auxiliary tool is quite necessary to be designed for positioning control of large-diameter ultra-deep hole machining of a workpiece, so as to guarantee the machining accuracy of a product.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a major diameter ultra-deep hole processing locator is provided, this kind of locator can solve the work piece because of the hole too big, too dark and be difficult to guarantee the precision problem in the processing to improve product machining precision and operation security.
The technical scheme for solving the technical problems is as follows:
a large-diameter ultra-deep hole processing positioner comprises a sleeve, a support, bolt adjusting fixed blocks, a copper sleeve, adjusting bolts and an adjustable positioning block, wherein the sleeve is a flat cylinder, the support is a plate frame with a U-shaped cross section, four supports are respectively welded on the periphery of the sleeve, the plane of the support is parallel to the end plane of the sleeve, the bolt adjusting fixed blocks are rectangular steel blocks, four bolt adjusting fixed blocks are respectively welded at the front ends of the four supports, the center of each bolt adjusting fixed block is provided with an adjusting screw hole, the axial direction of the adjusting screw hole is parallel to the length direction of the support, the copper sleeve is sleeved in an inner hole of the sleeve, the inner hole of the copper sleeve is matched with the outer diameter of a main shaft of a boring machine, four adjusting bolts are respectively screwed in the adjusting screw holes of the bolt adjusting fixed blocks, nuts of the adjusting bolts are positioned in a frame of the support, screw rods of the adjusting, the rear end of the adjustable positioning block is provided with a screw hole matched with the thread of the adjusting bolt, the rear end of the adjustable positioning block is screwed at the front end of the adjusting bolt, and the front end of the adjustable positioning block is an arc-shaped end face.
Above-mentioned major diameter ultradeep hole processing locator, the support comprises two curb plates and a bottom plate, and two curb plates and bottom plate are the rectangle steel sheet, and two curb plates are parallel relative, and two curb plates vertical welding are in the both sides of bottom plate, the rear end and the sleeve periphery welded connection of support, and bolt adjustment fixed block welded connection is at the support front end.
According to the large-diameter ultra-deep hole machining positioner, the outer wall of the copper sleeve is connected with the inner hole of the sleeve in a tight fit mode, the connecting gap between the outer wall of the copper sleeve and the inner hole of the sleeve is provided with the locking screw hole, the hole walls of the locking screw hole are respectively located on the outer wall of the copper sleeve and the inner hole wall of the sleeve, the locking screw hole is parallel to the central axis of the copper sleeve, and the copper sleeve is fixedly connected with the sleeve by screwing the set screw in the locking screw hole.
According to the large-diameter ultra-deep hole machining positioner, the radial oil hole is formed in the wall of the copper sleeve, the two ends of the radial oil hole are plugged by the screw plugs, and the oil groove is formed in the surface of the inner wall of the copper sleeve and connected with the radial oil hole.
The large-diameter ultra-deep hole machining positioner is further provided with a locking nut and a spring washer, the locking nut and the spring washer are located in the support frame, the locking nut and the spring washer are sleeved between a nut of the adjusting bolt and a bolt adjusting fixing block, and the locking nut is connected with the bolt adjusting fixing block in a locking mode.
The utility model has the advantages that:
the utility model discloses a copper sheathing suit is on the boring machine main shaft, and the clearance fit of copper sheathing and boring machine main shaft is 0.01-0.03mm, and the copper sheathing is as an organic whole with muffjoint, installs adjusting bolt on the sleeve support all around, and four adjusting bolt's front end is connected with adjustable locating piece respectively, and adjustable locating piece stretches into the major diameter deep hole, and adjustable locating piece contacts with the circumference of major diameter deep hole, realizes the location of boring machine main shaft.
The utility model discloses a major diameter BTA auxiliary assembly's initiative has solved major diameter BTA location difficulty, measured data is inaccurate, measured data precision is not enough isometric long-term problem difficult to solve, has simple structure, convenient operation, fix a position advantages such as accurate, has improved work efficiency effectively, has guaranteed the machining precision of product, has improved product quality to the expense and the maintenance cost of purchasing large-scale measuring tool have been reduced, production cost is reduced, has apparent economic benefits.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural view of a sleeve, a bracket and a bolt adjusting and fixing block;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is a schematic structural view of a stent;
FIG. 5 is a schematic structural view of a copper sleeve;
FIG. 6 is a schematic structural view of a bolt adjusting and fixing block;
FIG. 7 is a schematic view of the construction of the adjusting bolt;
fig. 8 is a schematic structural diagram of an adjustable positioning block.
The figures are labeled as follows: the device comprises a sleeve 1, a support 2, a bolt adjusting and fixing block 3, a copper sleeve 4, an adjusting bolt 5, a locking nut 6, a spring washer 7, an adjustable positioning block 8, a set screw 9, a radial oil hole 10, an oil groove 11 and a plug screw 12.
Detailed Description
The utility model discloses constitute by sleeve 1, support 2, bolt adjustment fixed block 3, copper sheathing 4, adjusting bolt 5, lock nut 6, spring washer 7, adjustable locating piece 8, holding screw 9, plug screw 12.
The sleeve 1 is shown as a flat cylinder for mounting the bracket 2, the copper sheath 4, and the sleeve 1 is the base part of the positioner.
The figure shows that the bracket 2 is a plate frame with a U-shaped cross section, the bracket 2 consists of two side plates and a bottom plate, the two side plates and the bottom plate are rectangular steel plates, the two side plates are parallel and opposite, and the two side plates are vertically welded on two sides of the bottom plate. Four supports 2 weld respectively in the circumference four sides of sleeve 1, and the rear end and the sleeve 2 periphery welded connection of support 2, support 2 plane are parallel with the end plane of sleeve 1. The support 2 is used for connecting a bolt adjusting fixing block 3, and the bolt adjusting fixing block 3 is welded at the front end of the support 2.
The bolt adjusting and fixing blocks 3 are rectangular steel blocks, and the four bolt adjusting and fixing blocks 3 are welded at the front ends of the four brackets 2 respectively. The center of the bolt adjusting fixing block 3 is provided with an adjusting screw hole, the axial direction of the adjusting screw hole is parallel to the length direction of the bracket 2, and the adjusting bolt 5 is screwed in the adjusting screw hole.
The copper sleeve 4 is sleeved in an inner hole of the sleeve 1, the inner hole of the copper sleeve 4 is matched with the outer diameter of a boring machine spindle, the copper sleeve 4 is sleeved on the boring machine spindle, the clearance fit between the copper sleeve 4 and the boring machine spindle is 0.01-0.03mm, and the copper sleeve 4 and the boring machine spindle are in sliding fit when the boring machine spindle rotates.
The figure shows that the outer wall of the copper sleeve is tightly matched and connected with the inner hole of the sleeve, a locking screw hole is arranged on a connecting gap between the outer wall of the copper sleeve and the inner hole of the sleeve, the hole walls of the locking screw hole are respectively positioned on the outer wall of the copper sleeve and the inner hole wall of the sleeve, the locking screw hole is parallel to the central axis of the copper sleeve 4, and a set screw 9 is screwed in the locking screw hole to fix the copper sleeve 4 and the sleeve 1.
The radial oil hole 10 is arranged in the wall of the copper sleeve, screw plugs 12 are arranged at two ends of the radial oil hole 10 for blocking, and an oil groove 11 is arranged on the surface of the inner wall of the copper sleeve, and the oil groove 11 is connected with the radial oil hole 10. Lubricating oil enters the oil groove 11 through the radial oil hole 10, and the lubricating oil lubricates the space between the copper bush 4 and the boring machine spindle through the oil groove 11.
The figure shows that four adjusting bolts 5 are respectively screwed in adjusting screw holes of a bolt adjusting fixing block 3, a nut of each adjusting bolt 5 is positioned in a frame of a support 2, a screw rod of each adjusting bolt 5 is positioned on the outer side of the bolt adjusting fixing block 3, a locking nut 6 and a spring washer 7 are positioned in the frame of the support 2, the locking nut 6 and the spring washer 7 are sleeved between the nut of each adjusting bolt 5 and the bolt adjusting fixing block 3, and the locking nut 6 is in locking connection with the bolt adjusting fixing block 3 to lock and fix the adjusting bolts 5.
The figure shows that the adjustable positioning block 8 is a square steel block, the rear end of the adjustable positioning block 8 is provided with a screw hole matched with the thread of the adjusting bolt 5, the rear end of the adjustable positioning block 8 is screwed at the front end of the adjusting bolt 5, and the front end of the adjustable positioning block 8 is an arc-shaped end face. The four adjustable positioning blocks 8 are respectively connected to the front ends of the four adjusting bolts 5, the front end faces of the four adjustable positioning blocks 8 are respectively contacted with the four walls of the large-diameter deep hole, and the adjustable positioning blocks 8 position the boring machine spindle through the adjusting bolts 5, the bolt adjusting and fixing blocks 3, the support 2, the copper sleeve 4 and the like.
The working process of the utility model is as follows:
will the utility model discloses hoist to the rough machining hole to copper sheathing 4 is the alignment hole, beats the table alignment this hole beat according to original coordinate, and adjustment adjusting bolt 5, lock nut 6 guarantee that 4 hole beat of copper sheathing are at the drawing requirement within range, and fixed adjusting bolt 5, lock nut 6 guarantee that its location size does not change.
After the alignment is finished, the boring machine spindle penetrates through the copper sleeve 4 filled with lubricating grease to reach the position of the reference hole, the table is found again for alignment, and the deflection is determined to be within the drawing processing allowable range, so that the processing can be carried out.
The utility model discloses but the auxiliary measurement precision cylindricity 0.2mm, axiality 0.2mm, processing back surface roughness reaches Ra1.6 mu m, and local R position is Ra0.8 mu m's hole.
The utility model discloses an embodiment as follows:
the diameter phi 420 mm x 130 mm of the sleeve 1, the inner hole is divided into two sections, namely phi 305H7(+0.052/0) mm x 120 mm, phi 170 mm x 10mm step holes; the roughness of the phi 305H7(+0.052/0) hole surface reaches the work Ra1.6;
the length of the bracket 2 is 195mm, the width is 200mm, and the height is 75 mm;
the length of the bolt adjusting fixing block 3 is 188mm, the width is 30mm, the height is 66mm, and the diameter of a screw hole is M24;
the diameter phi 305g6(-0.017/-0.049) mm phi 260 mm of the copper sleeve 4 and the thickness is 120 mm; the coaxiality of the inner hole and the outer circle is 0.05mm, and the surface roughness of the inner hole phi 260 reaches the working ratio of 1.6;
the diameter of the adjusting bolt 5 is M24, and the length is 140 mm;
the diameter of the lock nut 6 is M24;
The diameter of the set screw 9 is M12;
the outer cylinder of the adjustable positioning block 8 is phi 48mm, the length is 46mm, and the center is provided with an M24 threaded hole.
Claims (5)
1. The utility model provides a major diameter ultra-deep hole machining locator which characterized in that: the adjustable bolt adjusting device comprises a sleeve (1), a support (2), bolt adjusting fixing blocks (3), copper sleeves (4), adjusting bolts (5) and adjustable positioning blocks (8), wherein the sleeve (1) is a flat cylinder, the support (2) is a plate frame with a U-shaped cross section, the four supports (2) are respectively welded on four sides of the circumference of the sleeve (1), the plane of the support (2) is parallel to the end plane of the sleeve (1), the bolt adjusting fixing blocks (3) are rectangular steel blocks, the four bolt adjusting fixing blocks (3) are respectively welded at the front ends of the four supports (2), the centers of the bolt adjusting fixing blocks (3) are provided with adjusting screw holes, the axial directions of the adjusting screw holes are parallel to the length direction of the supports (2), the copper sleeves (4) are sleeved in inner holes of the sleeve (1), the inner holes of the copper sleeves (4) are matched with the outer diameter of a spindle of a boring machine, the four adjusting bolts (5) are respectively screwed in the adjusting, the screw cap of adjusting bolt (5) is located the frame of support (2), and the screw rod of adjusting bolt (5) is located the outside of bolt adjustment fixed block (3), and adjustable locating piece (8) are square steel block, and there is the screw and the screw thread phase-match of adjusting bolt (5) rear end of adjustable locating piece (8), and the rear end of adjustable locating piece (8) is twisted in the front end of adjusting bolt (5), and the front end of adjustable locating piece (8) is arc terminal surface.
2. The large-diameter ultra-deep hole machining locator of claim 1, wherein: support (2) comprise two curb plates and a bottom plate, and two curb plates and bottom plate are the rectangle steel sheet, and two curb plates are parallel relative, and two curb plates vertical welding are in the both sides of bottom plate, the rear end and sleeve (1) periphery welded connection of support (2), bolt adjustment fixed block (3) welded connection is in support (2) front end.
3. The large-diameter ultra-deep hole machining locator of claim 1, wherein: the copper bush outer wall is connected with the sleeve inner hole in a tight fit mode, a locking screw hole is formed in a connecting gap between the copper bush outer wall and the sleeve inner hole, the hole walls of the locking screw hole are respectively located on the copper bush outer wall and the sleeve inner hole wall, the locking screw hole is parallel to the central axis of the copper bush (4), and a set screw (9) is screwed in the locking screw hole to fixedly connect the copper bush (4) with the sleeve (1).
4. The large-diameter ultra-deep hole machining locator of claim 3, wherein: a radial oil hole (10) is formed in the wall of the copper sleeve, two ends of the radial oil hole (10) are plugged by screw plugs (12), an oil groove (11) is formed in the surface of the inner wall of the copper sleeve, and the oil groove (11) is connected with the radial oil hole (10).
5. The large-diameter ultra-deep hole machining locator of claim 1, wherein: the adjusting bolt is characterized by further comprising a locking nut (6) and a spring washer (7), wherein the locking nut (6) and the spring washer (7) are located in a frame of the support (2), the locking nut (6) and the spring washer (7) are sleeved between a nut of the adjusting bolt (5) and the bolt adjusting fixing block (3), and the locking nut (6) is in locking connection with the bolt adjusting fixing block (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020609378.2U CN212526163U (en) | 2020-04-21 | 2020-04-21 | Large-diameter ultra-deep hole machining positioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020609378.2U CN212526163U (en) | 2020-04-21 | 2020-04-21 | Large-diameter ultra-deep hole machining positioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212526163U true CN212526163U (en) | 2021-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020609378.2U Active CN212526163U (en) | 2020-04-21 | 2020-04-21 | Large-diameter ultra-deep hole machining positioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212526163U (en) |
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2020
- 2020-04-21 CN CN202020609378.2U patent/CN212526163U/en active Active
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