CN211564556U - Boring machine for narrow space - Google Patents
Boring machine for narrow space Download PDFInfo
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- CN211564556U CN211564556U CN201922098986.1U CN201922098986U CN211564556U CN 211564556 U CN211564556 U CN 211564556U CN 201922098986 U CN201922098986 U CN 201922098986U CN 211564556 U CN211564556 U CN 211564556U
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- support frame
- boring
- face
- boring machine
- fastening
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Abstract
The utility model provides a boring machine for narrow space, the boring machine includes a boring cutter holder fixed on the boring bar and a driving mechanism for driving the boring bar to rotate, the boring machine also includes two fastening bolts, two end face supporting frames and two aligning bearings; the fastening bolt is provided with two fastening nuts; end face screw holes are respectively formed in the centers of two end faces of the fastening bolt, and a support frame bolt is bolted to the end face screw holes; a round hole-shaped mounting sleeve is arranged at the center of the end face support frame, and a plurality of connecting holes are symmetrically formed in the two sides of the mounting sleeve; the support frame bolts penetrate through the connecting holes and are bolted with the two end face support frames into a whole through support frame nuts; an adjusting sleeve supported between the end face support frame and the fastening nut is sleeved outside the support frame bolt; the adjusting sleeve comprises two coaxial circular tubes in threaded connection; the self-aligning bearing can be fixed in the mounting sleeve in a radial movable manner; and two ends of the boring rod are respectively and directly or indirectly fixedly connected to the inner sleeve of the self-aligning bearing.
Description
Technical Field
The utility model relates to a bent axle machining technical field especially relates to a boring machine for narrow space.
Background
The traditional boring machine is used for installing a machine tool body on the ground and fixing a workpiece to be machined on the boring machine, and the boring machine is suitable for machining movable small and medium workpieces in a workshop, but is very difficult to machine large workpieces. Especially for some special parts, the processing precision and quality of the parts directly affect the safety and service life of the equipment. Especially, for the processing of the splicing holes of a plurality of large-scale splicing crankshafts, because the splicing holes are processed by splicing two sections of crankshafts at the same time, the method has the characteristics of high processing precision, small processing space and the like, and has very large processing difficulty.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the structural shortcoming of prior art, provide a boring machine for narrow space, but direct mount has solved above-mentioned problem on the ring flange of bent axle.
In order to achieve the above object, the embodiment of the present invention provides a boring machine for narrow space, which is realized by the following technical scheme:
the utility model provides a boring machine for narrow space for the processing of large-scale concatenation formula bent axle's concatenation hole, boring machine is including the boring cutter frame of fixed locating on the boring bar and drive boring bar pivoted actuating mechanism, its characterized in that: the hole boring machine also comprises two fastening bolts, two end face supporting frames and two self-aligning bearings; the fastening bolt is provided with two fastening nuts and is used for being bolted in the splicing holes at two sides of the splicing hole to be processed; end face screw holes are respectively formed in the centers of two end faces of the fastening bolt, and a support frame bolt is bolted to the end face screw holes; a round hole is formed in the center of the end face support frame, and an installation sleeve is arranged around the round hole; a plurality of connecting holes are symmetrically formed in the two sides of the mounting sleeve on the end face support frame; the support frame bolts penetrate through the connecting holes and are bolted with the two end face support frames into a whole through support frame nuts; an adjusting sleeve supported between the end face support frame and the fastening nut is sleeved outside the support frame bolt; the adjusting sleeve comprises two coaxial circular tubes in threaded connection; the self-aligning bearing can be fixed in the mounting sleeve in a radial movable manner; and two ends of the boring rod are respectively and directly or indirectly fixedly connected to the inner sleeve of the self-aligning bearing.
The mounting sleeve is uniformly and radially provided with a plurality of fastening screws, and the tail ends of the fastening screws are tightly pressed on the peripheral surface of the outer sleeve of the self-aligning bearing so as to realize the radial movable fixation of the self-aligning bearing.
The number of the set screws is four.
Two round holes are symmetrically arranged on at least one round tube of the adjusting sleeve.
The connecting hole is a waist hole.
The number of the connecting holes is two or four.
Compared with the prior art, the beneficial effects of the utility model are that:
the boring machine equipment can be directly installed on a flange plate of a crankshaft, has narrow space processing capacity, is convenient to assemble, disassemble and transport, is used for maintaining and processing a large crankshaft butt flange hole, can shorten the processing time, and improves the production efficiency. The boring machine adopts a modular design, and is convenient and simple to install and operate.
Drawings
The above features and advantages of the present invention will become more apparent and readily appreciated from the following description of the exemplary embodiments thereof taken in conjunction with the accompanying drawings.
Fig. 1 is a schematic structural diagram I of a boring machine according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram II of the hole boring machine according to the embodiment of the present invention;
FIG. 3 is a structural view of an end face support frame according to an embodiment of the present invention;
FIG. 4 is a structural view of a differential transmission case according to an embodiment of the present invention;
FIG. 5 is a schematic structural view I of a gear shifting box according to an embodiment of the present invention;
FIG. 6 is the embodiment of the utility model provides a case structure schematic view II 'of shifting'
Fig. 7 is a partially enlarged view of fig. 1.
Detailed Description
The invention will be described in further detail below with reference to the accompanying drawings so as to facilitate understanding by those skilled in the art:
referring to fig. 1-7, the numbers indicated in the figures are:
the device comprises a splicing hole 1, a fastening bolt 2, a fastening nut 21, a support frame bolt 22, an end face support frame 3, a mounting sleeve 31, a screw hole 311, a fastening screw 312, a connecting hole 32, a support frame nut 33, a self-aligning bearing 4, a boring bar hoop 41, an outer sleeve 42, an inner sleeve 43, an adjusting sleeve 5, a round hole 51, a boring mechanism 6, a boring bar 61, a mounting flange 62, a boring bar holder 63, a screw rod 64, an extension rod 65, a servo motor 66, a speed reducer 67, a differential transmission case 7, a driving gear 71, a transition gear 72, an output gear 73, a common rotating shaft 74, a copper sleeve 75, a case body 76, a case cover 77, a fastening screw 78, a conversion sleeve 79, a gear shifting case 8, a sliding gear 81, a sliding gear shaft 82, a transition gear 83, an output gear 84, a shifting fork 85, a shifting.
Referring to fig. 1-6, the utility model provides a boring machine for narrow space for the concatenation spot facing work of large-scale concatenation formula bent axle, this boring machine mainly includes:
mounting base component
The mounting seat assembly mainly comprises two fastening bolts 2, two end face supporting frames 3 and two self-aligning bearings 4.
Wherein, holding up bolt 2 has two holding up nuts 21, can tightly fix holding up bolt 2 in waiting to process the concatenation hole 1 of concatenation hole 1 both sides through two holding up nuts 21. The centers of the two end faces of the fastening bolt 2 are respectively provided with an end face screw hole, and the four supporting frame bolts 22 are correspondingly bolted in the end face screw holes one by one.
The center of the end face support frame 3 is provided with a round hole-shaped mounting sleeve 31, a round hole is formed in the mounting sleeve 31, a self-aligning bearing 4 is mounted in the round hole, and the self-aligning bearing 4 adopts a high-precision rolling bearing and has high rigidity and high rotation precision. Referring to fig. 3, a plurality of screw holes 311 are radially and uniformly formed on the circumferential surface of the mounting sleeve 31, and fastening screws 312 are fastened in the screw holes 311, and the ends of the fastening screws 312 are pressed against the circumferential surface of the outer sleeve 42 of the center-adjusting bearing 4 to fix the center-adjusting bearing 4. By adjusting the set screw 312, the radially movable fixing of the self-aligning bearing can also be realized.
The end face support frame 3 is further provided with a plurality of connecting holes 32, and the connecting holes 32 are symmetrically arranged on two sides of the mounting sleeve 31 in a pairwise and one group. In the present embodiment, the number of the connection holes 32 is 4, and is a waist hole.
The support bolt 22 passes through the connecting hole 32 and bolts the fastening bolts 2 and the two end supports 3 together through the support nut 33. In addition, the adjusting sleeve 5 is sleeved outside the supporting frame bolt 22 and is composed of two coaxial circular tubes in threaded connection. Two round holes 51 are symmetrically arranged on one of the round tubes, and are used for inserting a handle to enable the round tubes to rotate relatively, so that the round tubes are tightly supported between the end face support frame 3 and the fastening nut 21.
Boring mechanism 6
The boring mechanism 6 comprises a boring rod 61 extending left and right, the boring rod 61 is made of alloy structural steel, and the alloy structural steel is subjected to quenching and tempering, surface quenching, three-time stress relief tempering and surface chromium plating, so that the strength is high, the wear resistance is good, and the corrosion resistance is high. One end of the boring bar 61 is connected to a driving unit through an extension bar 65, and the driving unit is composed of a servo motor 66 and a reducer 67 and can drive the boring bar 61 to rotate.
Both ends of the boring bar 61 are respectively locked with the inner sleeve 43 of the self-aligning bearing 4 through jackscrews, so that the boring bar 61 and the inner sleeve 43 of the self-aligning bearing 4 can rotate together. In addition, the outer sleeve 42 of the self-aligning bearing 4 is also fixedly provided with a boring bar hoop 41, and the boring bar hoop 41 is sleeved on the boring bar 61 and used for limiting the boring bar 61.
When the adjusting boring bar 61 is concentric with the hole to be machined, rough adjustment can be firstly carried out on the long waist hole of the connecting hole 32 by selecting the connecting hole 32, the support frame nut 33 is screwed after the rough adjustment, the adjusting sleeve 5 is rotated to enable the adjusting sleeve 5 to be tightly supported between the end face support frame 3 and the fastening nut 21, and the end face support frame 3 is fixed on the crankshaft. And then, the centering positions of the self-aligning bearing 4 and the boring rod 61 are adjusted in four directions through four set screws 312, so that the axis of the boring rod is overlapped with the axis of the hole to be processed, and the fine adjustment of the boring rod 61 is completed.
An arc-shaped groove is formed in one side of the boring rod 61, a lead screw 64 is placed, the left portion and the right portion of the lead screw 64 are respectively connected with the left portion and the right portion of the boring rod 41 in a rotating mode, the lead screw 64 is used for driving a circular tool rest to achieve axial movement, grooves are formed in the symmetrical positions of the other side of the boring rod, a fine boring unit is installed in a clearance position, and axial sliding is allowed.
The boring bar 61 is mounted with a boring holder 63. The boring tool holder 63 is composed of two semicircular rings, tightly locked on the boring bar 61 by using bolts, and circularly moves along with the boring bar 61 to realize cutting of the tool. During machining, a circular tool hole is provided with a fine boring unit of a Hittverke, the tool consumption can be adjusted by rotating an adjusting nut, the nut is provided with a dial, each index value is equivalent to the variation of radial cutting depth of 0.01mm, and the total stroke is 2.5 mm. The boring cutter holder 63 is provided with two circular holes, and the other cutter hole is sealed to prevent scrap iron from falling when not used.
When the fine boring unit is arranged in the middle circular cutter hole, the maximum machinable diameter phi is 105mm, and when the fine boring unit is arranged in the other cutter hole, the maximum machinable diameter phi is 105 mm.
Differential gear box 7
The differential transmission case is composed of a driving gear 71, a transition gear 72, an output gear 73, a common rotating shaft 74, a copper sleeve 75, a case body 76, a case cover 77 and the like.
The box body 76 of the differential transmission case is fixed by a stop rod, a driving gear 71 in the box body 76 is supported by a bearing and meshed with a transition gear 72, and the end surface of the driving gear 71 is pressed against a common rotating shaft 74 by a set screw 78, so that the driving gear 71 and the common rotating shaft 74 rotate together; the end face of the output gear 73 is provided with a half clutch with rectangular teeth, the output gear 73 has 1 less tooth number than the driving gear 71, is also meshed with the transition gear 72 after being made into a modified gear and is supported by a bearing, and the driving gear 71 and the output gear 73 are separated by a copper sleeve 75.
The differential transmission case flexibly uses the principle of small tooth difference transmission, the driving gear 71 and the output gear 73 (the modified gear) with the tooth difference of 1 are respectively meshed with the transition gear 72, when the tooth number difference is 1, the driving gear 71 rotates one more tooth for each circle, the driven gear rotates one more tooth, at the moment, the driving gear 71 and the output gear 73 have the rotation speed difference, and the differential transmission case uses the rotation speed difference to decelerate the main motion and drive the screw rod 64 to feed.
When the boring bar 61 rotates to work, the common rotating shaft 74, the driving gear 71 and the boring bar 61 rotate at the same speed, and at the moment, the transmission is carried out through the transition gear 72, and the output gear 73 rotates together; because of small tooth difference, the output gear 73 relatively rotates on the common rotating shaft 74 by one tooth along the same direction every time the common rotating shaft 74 rotates by one circle, the differential transmission case transmits the relative motion to the gear shifting case 8 through the end face rectangular tooth clutch, and the relative motion is converted through the gear set of the gear shifting case 8 to drive the screw rod 64 on the boring bar 61 to realize low-speed feeding motion.
When the boring cutter holder 63 needs manual tool setting, the set screw 78 can be loosened, then the rocking handle is sleeved on the common rotating shaft 74, the conversion sleeve 79 is clamped through the rectangular teeth on the end face of the rocking handle, and the manual axial tool setting can be realized by rotating the handle. After the manual tool setting is completed, the driving gear 71 and the common rotating shaft 74 can move together by screwing the set screw 78, so that the automatic differential feeding is realized.
The gear shifting box 8 is composed of a sliding gear 81, a sliding gear shaft 82, a transition gear 83, an output gear 84, a shifting fork 85, a gear shifting hexagonal rod 86, a box body 87, a box cover and the like.
The common rotating shaft 74 is fixedly connected with the boring bar 61 by penetrating through the mounting flange 62, at the moment, the differential transmission case 7 and the gear shifting case 8 are both sleeved on the common rotating shaft 74, the case body 87 of the gear shifting case 8 is fixed on the end surface of the mounting flange 62 of the boring bar 61, wherein the left end of the sliding gear shaft 82 of the gear shifting case 8 is provided with a rectangular-tooth half-side clutch which is meshed with the rectangular-tooth half-side clutch of the output gear 73 of the differential transmission case and transmits differential motion.
During operation, the box body 87 of the gear shifting box 8 and the boring bar 61 rotate at the same speed, the end face of the sliding gear 81 is meshed with the output gear 73 of the differential transmission box 7 through a rectangular tooth clutch to obtain the same rotating speed of the output gear 73 of the differential transmission box 7 (namely the sliding gear shaft 82 is one tooth faster than the box body 87 of the gear shifting box 8), and then a speed difference occurs between the two, and then the speed difference is converted and converted through the gear set of the gear shifting box 8 and is transmitted to the lead screw 64, so that the low-speed feeding component motion of the lead screw 64 is realized.
The case 8 of shifting is equipped with the handle of shifting, stirs the sliding gear position about through the allen key, realizes functions such as shifting, neutral gear:
when the gear shifting handle is pulled to the right, the gear shifting handle is in a first gear, and the feed amount of the screw rod is about 0.13 mm/r;
when the gear shifting handle is pulled to the middle, the gear shifting handle is in a neutral position, and the screw rod not only can supply power, but also can manually adjust the feed of the screw rod;
when the gear shifting handle is pulled to the left, the gear shifting handle is in the second gear, and the feed amount of the screw rod is about 0.22 mm/r;
the present invention is described in detail with reference to the embodiments and the purpose of the present invention, but it can be understood by those skilled in the art that the above embodiments of the present invention are only one of the preferred embodiments of the present invention, and for space limitation, all embodiments can not be listed here one by one, and any implementation that can embody the technical solution of the present invention is within the protection scope of the present invention.
Claims (6)
1. The utility model provides a boring machine for narrow space for the processing of large-scale concatenation formula bent axle's concatenation hole, boring machine is including the boring cutter frame of fixed locating on the boring bar and drive boring bar pivoted actuating mechanism, its characterized in that: the hole boring machine also comprises two fastening bolts, two end face supporting frames and two self-aligning bearings; the fastening bolt is provided with two fastening nuts and is used for being bolted in the splicing holes at two sides of the splicing hole to be processed; end face screw holes are respectively formed in the centers of two end faces of the fastening bolt, and a support frame bolt is bolted to the end face screw holes; a round hole is formed in the center of the end face support frame, and an installation sleeve is arranged around the round hole; a plurality of connecting holes are symmetrically formed in the two sides of the mounting sleeve on the end face support frame; the support frame bolts penetrate through the connecting holes and are bolted with the two end face support frames into a whole through support frame nuts; an adjusting sleeve supported between the end face support frame and the fastening nut is sleeved outside the support frame bolt; the adjusting sleeve comprises two coaxial circular tubes in threaded connection; the self-aligning bearing can be fixed in the mounting sleeve in a radial movable manner; and two ends of the boring rod are respectively and directly or indirectly fixedly connected to the inner sleeve of the self-aligning bearing.
2. The boring machine for narrow spaces according to claim 1, characterized in that: the mounting sleeve is uniformly and radially provided with a plurality of fastening screws, and the tail ends of the fastening screws are tightly pressed on the peripheral surface of the outer sleeve of the self-aligning bearing so as to realize the radial movable fixation of the self-aligning bearing.
3. The boring machine for narrow spaces according to claim 2, characterized in that: the number of the set screws is four.
4. The boring machine for narrow spaces according to claim 3, characterized in that: two round holes are symmetrically arranged on at least one round tube of the adjusting sleeve.
5. The boring machine for narrow spaces according to claim 4, characterized in that: the connecting hole is a waist hole.
6. The boring machine for narrow spaces according to claim 5, characterized in that: the number of the connecting holes is two or four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922098986.1U CN211564556U (en) | 2019-11-29 | 2019-11-29 | Boring machine for narrow space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922098986.1U CN211564556U (en) | 2019-11-29 | 2019-11-29 | Boring machine for narrow space |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211564556U true CN211564556U (en) | 2020-09-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922098986.1U Active CN211564556U (en) | 2019-11-29 | 2019-11-29 | Boring machine for narrow space |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211564556U (en) |
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2019
- 2019-11-29 CN CN201922098986.1U patent/CN211564556U/en active Active
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