CN117358967B - Boring bar middle supporting device for deep hole processing equipment - Google Patents
Boring bar middle supporting device for deep hole processing equipment Download PDFInfo
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- CN117358967B CN117358967B CN202311582654.5A CN202311582654A CN117358967B CN 117358967 B CN117358967 B CN 117358967B CN 202311582654 A CN202311582654 A CN 202311582654A CN 117358967 B CN117358967 B CN 117358967B
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- piston rod
- piston
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- 230000008093 supporting effect Effects 0.000 title claims abstract description 25
- 238000012545 processing Methods 0.000 title claims abstract description 24
- 238000003754 machining Methods 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 10
- 229910001141 Ductile iron Inorganic materials 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000007790 scraping Methods 0.000 description 6
- 238000001816 cooling Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B29/00—Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
- B23B29/02—Boring bars
- B23B29/027—Steadies for boring bars
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention belongs to the technical field of deep hole processing equipment, and provides a boring bar middle supporting device for deep hole processing equipment. The right end of the left connecting disc is connected with a rotary support through a bolt, the right end of the rotary support is connected with an oil cylinder through a bolt, a thrust sleeve is arranged between the rotary support and the oil cylinder, an oil inlet passage and an oil return passage are arranged at the right end of the oil cylinder and are connected with a three-position four-way electromagnetic valve of a hydraulic control part through a hose, then a closed loop is formed with the oil tank, and the telescopic action of the rotary support is controlled through the program control oil cylinder in an operating system to play a role in supporting; according to the invention, one or more middle stay bar devices can be simultaneously used on one boring bar according to the length of a processed product, so that the boring bar is not influenced by deflection, the rigidity of the boring bar is increased, the boring bar is prevented from being scratched, the deep hole processing equipment is not limited by the length, the processing speed is improved, and the production efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of deep hole processing equipment, and particularly relates to a boring bar middle supporting device for deep hole processing equipment.
Background
Because of the special structure of the deep hole processing, namely the cutting tool is connected through the boring bar, the part entering the deep hole in the processing process is only supported by the end cover (or the center frame) of the oil feeder and is in overhanging processing, the longer the processing product is, the farther the distance between the cutting point and the boring bar supporting point is, the worse the rigidity of the boring bar is, and the higher the rotating speed is, the larger the deflection of the boring bar is, so that the length of processing equipment is limited.
The inventor proposes a stay bar device directly installed at the middle connecting position of the boring bar of the deep hole scraping roller (or deep hole boring machine) to solve the problems.
Disclosure of Invention
In order to solve the technical problems, the invention provides a boring bar middle supporting device for deep hole processing equipment, which aims to solve the problems that in the prior art, the longer a work product is, the farther the distance between a cutting point and a boring bar supporting point is, the poorer the rigidity of the boring bar is, the higher the rotating speed is, the larger the deflection of the boring bar is, so that the length of the processing equipment is limited.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The utility model provides a boring bar intermediate support device that deep hole processing equipment used, includes intermediate support device, intermediate support device includes control program in left connection pad, hydraulic control part and the operating system, the right-hand member of left connection pad has rotary support through bolted connection, rotary support's right-hand member has the hydro-cylinder through bolted connection, be connected with thrust sleeve between rotary support and the hydro-cylinder, rotary support includes the casing, movable mounting has four lever supports in the casing, four the lever supports all installs the inside at the casing through the axis of rotation, lever supports its lower extreme inclined plane beta and thrust sleeve's cone conical surface cooperation, four the left lower extreme that lever supported all is equipped with spring mounting sleeve, install the spring in the spring mounting sleeve, four spring interconnect becomes the closed loop, four the left end that lever supported is equipped with the mounting hole, install wear-resisting bulb through locking screw in the mounting hole, the left end of thrust sleeve is the cone conical surface and matches with lever support's lower extreme inclined plane beta, the hydro-cylinder includes cylinder body, uide bushing and piston design, four lever supports its lower extreme inclined plane beta and thrust sleeve all through the axis of rotation installs in the inside at the casing, four lever support lower extreme inclined plane beta and thrust sleeve are equipped with the piston rod, four the piston rod and piston rod form, piston rod and piston rod are equipped with sealing ring, piston rod and piston rod form, piston rod and piston rod are equipped with sealing ring, sealing ring and piston rod form and piston rod form, piston rod and piston rod form piston rod.
Preferably, the hydraulic control part is arranged on the host hydraulic station and comprises a three-position four-way electromagnetic valve, an oil inlet hose, an oil outlet hose and a connecting pipe are connected to the three-position four-way electromagnetic valve, the oil inlet hose and the oil outlet hose are connected to an oil inlet channel and an oil return channel on the oil cylinder, an oil tank is communicated with the other end of the connecting pipe, a pressure gauge, an overflow valve, an oil pump and an oil suction filter are arranged on the connecting pipe, and the oil pump, the oil suction filter and the oil tank are shared with the host hydraulic station.
Preferably, the rotating shaft is designed as an opening bolt, the threaded part is matched with threads on the step groove of the outer circle of the shell, and the polish rod part is matched with a through hole on the lever support.
Preferably, the right end of the thrust sleeve is arranged on the piston rod through threads and reinforced through two locking screws, the left end step of the piston rod is connected with the right end of the thrust sleeve in a matched mode, the inside of the piston rod is hollow, and the piston rod is used for installing a cutter cooling and control pipeline and is a piston-integrated piston rod.
Preferably, the upper thread of the guide sleeve is matched with the upper thread of the cylinder body, and the guide sleeve and the static seal of the cylinder body adopt a second O-shaped ring.
Preferably, the first combined seal and the second combined seal are PTFE+NBR combined seals.
Preferably, the wear-resistant ball head is made of spheroidal graphite cast iron.
Compared with the prior art, the invention has the following beneficial effects:
1. The middle supporting device is directly arranged at the middle connecting position of the boring bar of the deep hole roller scraping machine (or the boring machine), deflection of the boring bar during processing and rotation is reduced due to the supporting effect of the middle supporting device, the boring bar is prevented from being contacted with the processed surface of a product to scratch the processed inner hole and the boring bar, when the product is processed to a certain length of middle support to process the processed inner hole, the program control oil cylinder works, the piston rod stretches out, the rotating support is opened, and the wear-resistant ball head on the lever support is in tension contact with the processed inner surface to play a supporting role; when the product is processed, the program controls the piston rod of the oil cylinder in the intermediate supporting device to retract, the wear-resistant ball head supported by the lever is retracted into the rotary supporting cavity under the action of the spring, and the whole intermediate supporting device only plays a role of a boring bar connector; one or more middle stay bar devices can be simultaneously used on one boring bar according to the length of a processed product, so that the length of the processed product is not influenced by the deflection of the boring bar, the deflection of the boring bar is controlled due to the effect of middle support, the rigidity of the boring bar is increased, the boring bar is prevented from being scratched, the rotating speed of a scraping roller can be increased, the deep hole processing equipment is not limited by the length, the processing speed can be increased, and the production efficiency can be doubled.
2. According to the invention, through the rod seal arranged between the rod part of the piston rod and the guide sleeve, the piston seal arranged between the piston part and the cylinder body ensures that the seal is reliable and durable in use, no internal/external oil leakage is generated in the cylinder in long-term use, the seal glue is adopted in guide sleeve assembly, and after assembly pressure test is qualified, a joint bolt is driven to be loose out of threaded fit with the cylinder body, so that the sealing effect and looseness of the guide sleeve in use are ensured.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural view of a boring bar intermediate support device for deep hole processing equipment according to the present invention;
FIG. 2 is a view showing an operation state of a boring bar intermediate support device for deep hole processing equipment according to the present invention;
FIG. 3 is a schematic view of the rotary support of the boring bar intermediate support device for deep hole machining equipment according to the present invention;
FIG. 4 is a cross-sectional view taken in the direction C-C of FIG. 3;
FIG. 5 is a sectional view in the direction D-D of FIG. 3;
FIG. 6 is a front cross-sectional view of FIG. 3;
FIG. 7 is a schematic view of lever support of a boring bar intermediate support apparatus for deep hole machining equipment according to the present invention;
FIG. 8 is a schematic view of a rotation axis of a boring bar intermediate support apparatus for a deep hole machining apparatus according to the present invention;
FIG. 9 is a schematic view of a thrust collar of a boring bar intermediate support apparatus for a deep hole machining apparatus according to the present invention;
FIG. 10 is a schematic view of an oil cylinder of a boring bar intermediate support apparatus for a deep hole machining apparatus according to the present invention;
FIG. 11 is a schematic view of a hydraulic control section of a boring bar intermediate support apparatus for a deep hole machining apparatus according to the present invention;
FIG. 12 is a flowchart showing the operation of the boring bar intermediate support apparatus for deep hole machining equipment according to the present invention;
Fig. 13 is a second flowchart of the boring bar intermediate support apparatus for deep hole machining equipment according to the present invention.
In the figure:
1. A left connecting disc; 2. a rotary support; 3. a thrust sleeve; 4. an oil cylinder; 5. a hydraulic control section; 2-1, a shell; 2-2, lever support; 2-3, rotating shaft; 2-4, springs; 2-5 parts of wear-resistant ball head; 4-1, a dust ring; 4-2, a Y-shaped sealing ring; 4-3, combining and sealing one; 4-4, a first guide ring; 4-5, O-shaped ring I; 4-6, a guide sleeve; 4-7, a guide ring II; 4-8, combining and sealing two; 4-9, cylinder body; 4-10, a piston rod; 5-1, a three-position four-way electromagnetic valve; 5-2, a pressure gauge; 5-3, an overflow valve; 5-4, an oil pump; 5-5, an oil absorption filter; 5-6, an oil tank.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
As shown in fig. 1 to 13:
Examples:
The invention provides a boring bar middle supporting device for deep hole processing equipment, which comprises a middle supporting device, wherein the middle supporting device comprises a left connecting disc 1, a hydraulic control part 5 and a control program in an operating system, the center of the left connecting disc 1 is designed to be hollow, a cooling water pipe (boring bar cooling type) and a control oil pipe are convenient to pass through, the outer diameter of the left connecting disc 1 is consistent with the outer diameter of a boring bar configured by the equipment, rectangular internal threads at the left end of the left connecting disc 1 are connected with rectangular external threads on the boring bar, the right end of the left connecting disc 1 is connected with a rotary support 2 through a bolt, the right end of the rotary support 2 is connected with an oil cylinder 4 through a bolt, the outer diameters of cylinder bodies 4-9 of the oil cylinders 4 are consistent with the outer diameters of boring bars configured by the equipment, and boring bars with different specifications are provided with different oil cylinders 4, the rectangular external thread at the right end of the cylinder body 4-9 is connected with the rectangular internal thread on the boring bar, the thrust sleeve 3 is connected between the rotary support 2 and the cylinder 4, the rotary support 2 comprises a shell 2-1, four lever supports 2-2 are movably arranged in the shell 2-1, the left end of the thrust sleeve 3 is a conical surface and is matched with the inclined plane beta at the lower end of the lever support 2-2, the lever supports 2-2 are unfolded when the piston rod extends 4-10, the cylinder 4 comprises the cylinder body 4-9, a guide sleeve 4-6 and the piston rod 4-10, the piston rod 4-10 and the piston are designed into an integral form, the guide sleeve 4-6 is arranged at the front end of the cylinder body 4-9, a rod seal is arranged between the rod part of the piston rod 4-10 and the guide sleeve 4-6, a piston seal is arranged between the piston part and the cylinder body 4-9, the right end of the cylinder 4 is provided with an oil inlet and an oil return channel, the hydraulic control part 5 is connected with a hose and an oil inlet and return passage through an oil pipe joint.
Specifically, as shown in fig. 11-13, the hydraulic control part 5 is installed on the host hydraulic station and comprises a three-position four-way electromagnetic valve 5-1, an oil inlet hose, an oil outlet hose and a connecting pipe are connected to the three-position four-way electromagnetic valve 5-1 to form a control loop, the oil inlet hose and the oil outlet hose are connected to an oil inlet channel and an oil return channel on the oil cylinder 4, the other end of the connecting pipe is communicated with an oil tank 5-6, a pressure gauge 5-2, an overflow valve 5-3, an oil pump 5-4 and an oil suction filter 5-5 are installed on the connecting pipe, and the oil pump 5-4, the oil suction filter 5-5 and the oil tank 5-6 are shared with the host hydraulic station.
Specifically, as shown in fig. 3-7, the number of the plurality of lever supports 2-2 is four, the four lever supports 2-2 are all installed in the shell 2-1 through the rotating shaft 2-3, the inclined planes beta at the lower ends of the lever supports 2-2 are matched with the conical surfaces of the cones of the thrust sleeves 3, the spring installation sleeves are arranged at the left lower ends of the four lever supports 2-2, springs 2-4 are installed in the spring installation sleeves, the four springs 2-4 are connected with each other to form a closed loop, the left ends of the four lever supports 2-2 are provided with installation holes, and the wear-resistant ball heads 2-5 are installed in the installation holes through locking screws.
The shell 2-1 is made of a forged piece to improve the mechanical performance, the outer diameter of the shell is consistent with that of a boring rod of a main machine, boring rods of different specifications are designed into shells 2-1 of different sizes, positioning rabbets are respectively designed at two ends of the shell 2-1 and are connected with a left end cover 1 and an oil cylinder 4, assembly positioning is ensured to be accurate, two rings of threaded connection holes are designed at the bottom of the left end of the shell 2-1, outer ring threads are connected with the left end cover 1 through bolts, step holes of the inner ring are connected with the oil cylinder 4 through bolts, a through hole is designed in the center of the bottom of the shell 2-1, equipment cooling water pipes (boring rod cooling type) and control oil pipes are convenient to pass through, four symmetrical hollow grooves on the cylindrical wall of the shell 2-1 are lever support 2-2 mounting positions, the size of the four symmetrical hollow grooves are in clearance fit with the lever support 2-2, U-shaped grooves and the holes designed at two sides of the hollow groove of the cylindrical wall of the shell 2-1 are the mounting positions of the rotating shaft 2-3 of the lever support 2-2, one side is designed into a threaded hole for facilitating the mounting of the rotating shaft 2-3, and the other side is designed into a through hole, and the mounting of the shell 2-1 is ensured.
Specifically, as shown in fig. 8, the rotating shaft 2-3 is designed as an open bolt, the threaded part is matched with the threads on the step groove on the outer circle of the shell 2-1, and the polish rod part is matched with the through hole on the lever support 2-2, so that the installation is convenient.
Specifically, as shown in fig. 9, the thrust sleeve 3 is used for converting the reciprocating motion of the piston rod 4-10 into the expanding motion of the lever support 2-2, the right end of the thrust sleeve 3 is installed on the piston rod 4-10 through threads and reinforced through two locking screws, the loosening of the thrust sleeve 3 in the working process is prevented, the left end step of the piston rod 4-10 is connected with the right end of the thrust sleeve 3 in a matched manner, the inside of the piston rod 4-10 is hollow, the piston rod 4-10 is integrated, the size of a through hole is designed according to the size of an equipment control oil pipe or a cooling water pipe (boring bar cooling type), and the piston ensures that the right end rod body of the cylinder body 4-9 does not enter a sealing position when the piston rod 4-10 extends in the center of the rod body.
Specifically, as shown in FIG. 10, the rod seal comprises a dust ring 4-1, a Y-shaped sealing ring 4-2, a combined sealing ring 4-3, a guide ring 4-4 and an O-shaped ring 4-5, and the piston seal comprises a guide ring two 4-7 and a combined sealing ring two 4-8, so that the seal is reliable and durable in use.
Specifically, the threads on the guide sleeve 4-6 are matched with the threads on the cylinder body 4-9, and the static seal between the guide sleeve 4-6 and the cylinder body 4-9 adopts an O-shaped ring II.
Specifically, the first combined seal 4-3 and the second combined seal 4-8 are PTFE+NBR combined seals.
Specifically, the wear-resistant ball heads 2-5 are made of spheroidal graphite cast iron, so that the wear resistance and the protection of the inner surface of a processed product are enhanced.
The lower end of the lever support 2-2 is designed to be matched with an inclined plane with the thrust sleeve 3, the other end of the lever support 2-2 is designed with a replaceable wear-resistant ball head 2-5, friction force is minimum when the wear-resistant ball head is convenient to contact with the surfaces of inner holes with different apertures when the wear-resistant ball head is unfolded, the lever support 2-2 is contracted in the inner cavity of the rotary support 2-2 under the action of the spring 2-4 when the wear-resistant ball head is not in operation, the middle support device is ensured to be unobstructed when the middle support device is supported by a boring rod, the lever support 2-2 is opened under the pushing of a piston rod 4-10 of the oil cylinder 4 when the wear-resistant ball head 2-5 is in operation, the inner hole of the oil cylinder 4 is tightly supported, the size of an outer cylinder of the rotary support 2 is consistent with the outer diameter of the boring rod configured by equipment, and different rotary supports 2 are configured by different boring rods.
The left end of a cylinder body 4-9 of the oil cylinder 4 is connected with a shell 2-1 of a rotary support 2 through bolts, a matching step is designed at a connecting part to ensure coaxiality of the middle support, double-end rectangular external threads at the right end of the cylinder body 4-9 of the oil cylinder 4 are connected with double-end rectangular internal threads of a boring bar, cylinder diameters and bar diameters are configured according to the size of the cylinder body 4-9, an oil duct is arranged on the cylinder body 4-9 and enters and exits from the bottom of the cylinder body 4-9, a hose is used for penetrating through an inner hole of the boring bar to be connected with a three-position four-way electromagnetic valve 5-1 on a hydraulic station, the installation of an oil pipe is skillfully solved, and interference of the oil pipe is avoided.
When the boring bar with different specifications is specifically used, boring bar middle supporting devices with different sizes are configured, the middle supporting devices are directly arranged at the middle connecting positions of the boring bars of the deep hole scraping roller machine (or the deep hole boring machine), deflection of the boring bars during machining and rotation is reduced due to the supporting effect of the middle supporting devices, the boring bars are prevented from being scratched by contact with the machined surfaces of products, when the boring bars of the scraping rollers (boring holes) extend into the machined product inner holes for a certain length, a program control oil cylinder 4 works, a piston rod 4-10 extends out, a lever support 2-2 in the rotating support 2 is pushed by a thrust sleeve 3 to rotate so that a wear-resistant ball head 2-5 at the other end of the lever support 2-2 and the machined product inner hole surface are expanded to play a middle supporting role, a piston rod 4-10 in the program control oil cylinder 4 is retracted after the machining of the products, the lever support 2-2 is retracted into the rotating support 2 under the effect of a spring 2-4, and the whole middle supporting device only plays a role of a rod connector; one or more middle stay bar devices can be simultaneously used on one boring bar according to the length of a processed product, so that the length of the processed product is not influenced by the deflection of the boring bar, the deflection of the boring bar is controlled due to the effect of middle support, the rigidity of the boring bar is increased, the rotating speed of a scraping roller (boring) can be increased, the processing speed is increased, and the production efficiency is improved.
While embodiments of the present invention have been shown and described above for purposes of illustration and description, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (7)
1. The utility model provides a boring bar intermediate strut device that deep hole processing equipment used, includes intermediate strut device, its characterized in that: the middle supporting device comprises a left connecting disc (1), a hydraulic control part (5) and a control program in an operating system, wherein the right end of the left connecting disc (1) is connected with a rotary support (2) through a bolt, the right end of the rotary support (2) is connected with an oil cylinder (4) through a bolt, a thrust sleeve (3) is connected between the rotary support (2) and the oil cylinder (4), the rotary support (2) comprises a shell (2-1), four lever supports (2-2) are movably arranged in the shell (2-1), the four lever supports (2-2) are all arranged in the shell (2-1) through rotating shafts (2-3), the lower end inclined planes beta of the lever supports (2-2) are matched with the cone conical surfaces of the thrust sleeves (3), the left lower ends of the four lever supports (2-2) are respectively provided with a spring installation sleeve, springs (2-4) are installed in the spring installation sleeves, the four springs (2-4) are mutually connected into a closed loop, the left ends of the four lever supports (2-2) are provided with installation holes, the wear-resistant ball heads (2-5) are installed in the installation holes through locking screws, the left ends of the thrust sleeves (3) are cone conical surfaces and are matched with the lower end inclined planes beta of the lever supports (2-2), the oil cylinder (4) comprises a cylinder body (4-9), a guide sleeve (4-6) and a piston rod (4-10), the piston rod (4-10) and the piston are designed into an integral form, the guide sleeve (4-6) is installed at the front end of the cylinder body (4-9), a rod seal is arranged between the rod part of the piston rod (4-10) and the guide sleeve (4-6), a piston seal is arranged between the piston part and the cylinder body (4-9), the right end of the oil cylinder (4) is provided with an oil inlet and oil return channel, the hydraulic control part (5) is connected with a hose and the oil inlet and oil return channel through an oil pipe joint, the rod seal comprises a dust ring (4-1), a Y-shaped sealing ring (4-2), a combined seal I (4-3), a guide ring I (4-4) and an O-shaped ring I (4-5), and the piston seal comprises a guide ring II (4-7) and a combined seal II (4-8).
2. The boring bar intermediate support apparatus for a deep hole machining apparatus as claimed in claim 1, wherein: the hydraulic control part (5) is arranged on the host hydraulic station and comprises a three-position four-way electromagnetic valve (5-1), an oil inlet hose, an oil outlet hose and a connecting pipe are connected to the three-position four-way electromagnetic valve (5-1), the oil inlet hose and the oil outlet hose are connected to an oil inlet channel and an oil return channel on the oil cylinder (4), an oil tank (5-6) is communicated with the other end of the connecting pipe, a pressure gauge (5-2), an overflow valve (5-3), an oil pump (5-4) and an oil suction filter (5-5) are arranged on the connecting pipe, and the oil pump (5-4), the oil suction filter (5-5) and the oil tank (5-6) are shared with the host hydraulic station.
3. The boring bar intermediate support apparatus for a deep hole machining apparatus as claimed in claim 1, wherein: the rotating shaft (2-3) is designed into an opening bolt, a threaded part is matched with threads on the outer circular step groove of the shell (2-1), and a polish rod part is matched with a through hole on the lever support (2-2).
4. The boring bar intermediate support apparatus for a deep hole machining apparatus as claimed in claim 1, wherein: the right end of the thrust sleeve (3) is arranged on the piston rod (4-10) through threads and is reinforced through two locking screws, the left end step of the piston rod (4-10) is connected with the right end of the thrust sleeve (3) in a matched mode, the inside of the piston rod (4-10) is hollow, and the piston is a piston-integrated type piston rod.
5. The boring bar intermediate support apparatus for a deep hole machining apparatus as claimed in claim 1, wherein: the guide sleeve (4-6) is matched with the cylinder body (4-9) in screw thread, and the guide sleeve (4-6) and the cylinder body (4-9) are in static seal by adopting an O-shaped ring II.
6. The boring bar intermediate support apparatus for a deep hole machining apparatus as claimed in claim 1, wherein: the first combined seal (4-3) and the second combined seal (4-8) are PTFE+NBR combined seals.
7. The boring bar intermediate support apparatus for a deep hole machining apparatus as claimed in claim 1, wherein: the wear-resistant ball head (2-5) is made of spheroidal graphite cast iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311582654.5A CN117358967B (en) | 2023-11-24 | 2023-11-24 | Boring bar middle supporting device for deep hole processing equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311582654.5A CN117358967B (en) | 2023-11-24 | 2023-11-24 | Boring bar middle supporting device for deep hole processing equipment |
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| CN117358967A CN117358967A (en) | 2024-01-09 |
| CN117358967B true CN117358967B (en) | 2024-05-28 |
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| CN208004841U (en) * | 2018-03-16 | 2018-10-26 | 安阳三一机械有限公司 | A kind of engine cylinder body crankshaft hole boring device |
| CN109641279A (en) * | 2016-08-31 | 2019-04-16 | Maq股份公司 | Rotating component, processing bar assembly and its method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050204879A1 (en) * | 2004-03-22 | 2005-09-22 | Kwech Horst W | Automated boring bar |
| US20150056033A1 (en) * | 2013-08-20 | 2015-02-26 | Thomas Esslinger | Universal offset portable boring bar support system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2333119A2 (en) * | 1975-11-26 | 1977-06-24 | Airaudo Antonin | Mobile extendable boring jib for deep holes - applies operating loads along lines in rigidly parallel planes |
| DE3544776C1 (en) * | 1985-12-18 | 1987-05-27 | Schmidt & Co Gmbh Kranz | Drill carriage with rotatable bracing column |
| CN105598500A (en) * | 2016-03-31 | 2016-05-25 | 重庆工商职业学院 | Deep hole boring method |
| CN109641279A (en) * | 2016-08-31 | 2019-04-16 | Maq股份公司 | Rotating component, processing bar assembly and its method |
| CN208004841U (en) * | 2018-03-16 | 2018-10-26 | 安阳三一机械有限公司 | A kind of engine cylinder body crankshaft hole boring device |
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