CN220863267U - Special frock of overlength hollow shaft processing - Google Patents
Special frock of overlength hollow shaft processing Download PDFInfo
- Publication number
- CN220863267U CN220863267U CN202322568097.3U CN202322568097U CN220863267U CN 220863267 U CN220863267 U CN 220863267U CN 202322568097 U CN202322568097 U CN 202322568097U CN 220863267 U CN220863267 U CN 220863267U
- Authority
- CN
- China
- Prior art keywords
- hollow shaft
- concentric
- blank cap
- tooling
- aligning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000000712 assembly Effects 0.000 claims abstract description 7
- 238000000429 assembly Methods 0.000 claims abstract description 7
- 238000003754 machining Methods 0.000 claims description 15
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 229910052802 copper Inorganic materials 0.000 claims description 10
- 239000010949 copper Substances 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Abstract
The utility model discloses a special tooling for processing an ultra-long hollow shaft, which comprises a hollow shaft, wherein one end of the hollow shaft is provided with a first concentric blank cap assembly, the other end of the hollow shaft is provided with a shaft clamp tooling and a second concentric blank cap assembly, a plurality of groups of aligning sleeve assemblies are arranged on the hollow shaft, each aligning sleeve assembly comprises an aligning sleeve body, a plurality of fixing sleeve assemblies are uniformly distributed on each aligning sleeve body, each fixing sleeve assembly comprises fixing sleeves symmetrically arranged on two sides of each aligning sleeve body, and each fixing sleeve is provided with an adjusting bolt. The utility model has simple structure, easy production and manufacture, stable performance, no damage to the inner wall of the hollow shaft, safe and reliable long-distance high-precision processing, safe, simple and convenient operation, and can avoid tool vibration in the processing process.
Description
Technical Field
The utility model relates to the technical field of hollow shafts, in particular to a special tooling for machining an ultra-long hollow shaft.
Background
The ultra-long hollow shaft is provided with a through hole in the center of the shaft, the hollow shaft is provided with a smooth inner wall, the inner hole is provided with a precise bushing for embedding, the external diameter finish machining is always a difficult point and a pain point, and the machining requirement is very high. The outer surface of the hollow shaft is mostly provided with a supporting shaft on a frame or a box body of the machine, so that the functions of transmission movement and operation are realized, and the surface precision, roundness and coaxiality of the hollow shaft also have direct influence on the operation of the whole system. The length-diameter ratio of the hollow long shaft deep hole in China is large, and because the rigidity of the cutter system is poor, the cutter is extremely easy to deform and mechanically vibrate in the cutting process, the improvement of production efficiency is restricted, the center line of the inner hole of the part is deviated, and the quality of the machined surface is also directly reduced.
The main difficulties in processing the ultra-long hollow shaft are as follows: 1) An ultra-long processing distance approaching 18 meters is required to ensure concentricity; 2) In the processing process, the rigidity difference of the part is long, and the cutter is easy to wear during processing; 3) The surface of the copper sleeve is provided with a plurality of copper sleeve positions, the finish machining is required, the total run-out requirement is extremely high, the cutting parameters are required to be controlled during machining, the machining deformation is prevented, natural aging is increased if necessary, and the whole process is forbidden to straighten; 4) The vibration is large in the processing process, clunking and sharp sounds can occur, and the surface roughness is difficult to ensure; 5) The wall thickness difference between the inner hole and the outer circle is strict; 6) The assembly and disassembly tool needs to avoid damaging the body and the inner wall. Therefore, a processing tool with a simple structure and easy production and manufacture is urgently needed at present, and the problem of coaxiality is solved, and the deformation caused by the dead weight of the shaft (about 40 tons) is considered.
Disclosure of utility model
The utility model aims to solve the technical problems and provides a special tool for processing an ultra-long hollow shaft, which can effectively solve the problem of cutter vibration in long-distance processing in the past production, improve the processing precision, ensure the stability and precision of the processing process, improve the matching precision of products and improve the quality of the products.
In order to achieve the technical purpose and meet the technical requirements, the utility model adopts the technical scheme that: the utility model provides a special frock of overlength hollow shaft processing, includes hollow shaft, its characterized in that: the novel self-aligning device is characterized in that a first concentric blank cap assembly is arranged at one end of the hollow shaft, a shaft clamp tool and a second concentric blank cap assembly are arranged at the other end of the hollow shaft, a plurality of groups of aligning sleeve assemblies are arranged on the hollow shaft, each aligning sleeve assembly comprises an aligning sleeve body, a plurality of fixing sleeve assemblies are uniformly distributed on each aligning sleeve body, each fixing sleeve assembly comprises fixing sleeves symmetrically arranged on two sides of each aligning sleeve body, and adjusting bolts are arranged on the fixing sleeves.
Preferably: the concentric cover assembly comprises a concentric cover body, a plurality of supporting holes are uniformly distributed on the concentric cover body, copper gaskets are arranged in the supporting holes, and the second concentric cover assembly and the first concentric cover assembly are identical in structure.
Preferably: the first concentric blank cap assembly and the second concentric blank cap assembly are in interference fit with the hollow shaft.
Preferably: the shaft clamp tool is arranged in a half-structure.
Preferably: the shaft clamp tool is arranged on the outer circle of the end of the hollow shaft bearing bushing.
Compared with the traditional structure, the utility model has the beneficial effects that: simple structure, easy manufacturing, avoid shaking the sword in the course of working, stable performance, easy dismounting maintains. The problems of poor coaxiality and poor machining precision in the machining process of the ultra-long hollow shaft are solved by freezing the concentric blank caps at the two ends, the machining precision can meet the drawing requirement, and the inner wall of the hollow shaft is not damaged by the tool; the difficult problem of controlling the wall thickness difference processing is solved through the aligning sleeve, the wall thickness difference is not more than 0.2mm, and long-distance high-precision processing can be safely and reliably performed; the problem that the shaft body is not clamped during loading and unloading of the ultra-long hollow shaft machine tool is solved through the shaft clamp tool, and the operation is safe, simple and convenient.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic illustration of a concentric closure assembly of the present utility model;
FIG. 3 is view A-A of FIG. 2;
FIG. 4 is a schematic view of the aligning sleeve assembly of the present utility model;
FIG. 5 is a view B-B of FIG. 4;
FIG. 6 is a schematic view of a shaft fixture tooling structure of the present utility model;
In the figure: 1. a first concentric cover assembly, 11, a concentric cover body, 12, a supporting hole, 13, a copper gasket and 2, a aligning sleeve assembly, the self-aligning sleeve comprises a self-aligning sleeve body, a fixing sleeve body, an adjusting bolt, a shaft clamp tool, a second concentric cover assembly and a hollow shaft.
Detailed Description
The present utility model will be further described below.
Referring to the attached drawings, a special tooling for processing an ultra-long hollow shaft comprises a hollow shaft 5, and is characterized in that: the hollow shaft 5 one end is provided with first concentric blank cap subassembly 1, and the other end is provided with axle fixture frock 3, the concentric blank cap subassembly 4 of second, be provided with multiunit aligning cover subassembly 2 on the hollow shaft 5, aligning cover subassembly 2 includes aligning cover body 21, the equipartition is provided with a plurality of fixed cover subassembly on the aligning cover body 21, fixed cover subassembly is including the fixed cover 22 of symmetry setting, be provided with adjusting bolt 23 on the fixed cover 22.
In the preferred embodiment, the first concentric cap assembly 1 includes a concentric cap body 11, a plurality of supporting holes 12 are uniformly distributed on the concentric cap body 11, and copper gaskets 13 are disposed in the supporting holes 12; the second concentric closure assembly 4 is identical in construction to the first concentric closure assembly 1.
In the preferred embodiment, the first concentric cover assembly 1 and the second concentric cover assembly 4 are in interference fit with the hollow shaft 5.
In the preferred embodiment, the shaft clamp fixture 3 is arranged in a half-structure.
In the preferred embodiment, the shaft clamp tool 3 is arranged on the outer circle of the bearing bushing end of the hollow shaft 5.
During implementation, the concentric blank cap assemblies at two ends are processed in place according to a drawing, a copper gasket with the thickness of 3mm is placed in a 4- ∅ supporting hole 12, liquid nitrogen is used for freezing to the temperature of minus 50 ℃, the copper gasket is placed in a shaft hole in an interference fit manner, the concentric blank cap is frozen on a shaft body, and the copper gasket has the function of preventing a disassembling blank cap screw from contacting the end face of a hollow shaft 5, and the end face of the hollow shaft is damaged when the concentric blank cap is disassembled outwards; loading the aligning sleeve assembly 2 on an ultra-long hollow shaft 5, controlling the shape and position tolerance size of each copper sleeve, and clamping the three aligning sleeves in place according to the calculated disturbance; and then the shaft clamp tool is arranged on the outer circle of the bushing part at the end of the ultra-long hollow shaft bearing. By arranging the aligning sleeve tool, the wall thickness difference machining is effectively controlled, deformation in the machining process is prevented, and the occurrence of wall thickness difference is avoided, so that the dimension of the geometric tolerance cannot be corrected; the coaxiality problem of the ultra-long hollow shaft processing is solved through the concentric blank cap and shaft clamp tool, the hollow shaft body is not damaged by loading and unloading, and the operation is safe, simple and convenient.
The foregoing embodiments of the present utility model are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model, and all equivalent technical solutions are also included in the scope of the present utility model, which is defined by the claims.
Claims (5)
1. The utility model provides a special frock of overlength hollow shaft processing, includes hollow shaft (5), its characterized in that: the novel self-aligning device is characterized in that a first concentric blank cap assembly (1) is arranged at one end of the hollow shaft (5), a shaft clamp tool (3) and a second concentric blank cap assembly (4) are arranged at the other end of the hollow shaft, a plurality of groups of aligning sleeve assemblies (2) are arranged on the hollow shaft (5), each aligning sleeve assembly (2) comprises an aligning sleeve body (21), a plurality of fixing sleeve assemblies are uniformly distributed on each aligning sleeve body (21), each fixing sleeve assembly comprises a symmetrically arranged fixing sleeve (22), and adjusting bolts (23) are arranged on the fixing sleeves (22).
2. The tooling special for machining the ultra-long hollow shaft according to claim 1, wherein the tooling is characterized in that: the first concentric blank cap assembly (1) comprises a concentric blank cap body (11), a plurality of supporting holes (12) are uniformly distributed in the concentric blank cap body (11), copper gaskets (13) are arranged in the supporting holes (12), and the second concentric blank cap assembly (4) and the first concentric blank cap assembly (1) are identical in structure.
3. The tooling special for machining the ultra-long hollow shaft according to claim 1, wherein the tooling is characterized in that: the first concentric blank cap assembly (1) and the second concentric blank cap assembly (4) are in interference fit with the hollow shaft (5).
4. The tooling special for machining the ultra-long hollow shaft according to claim 1, wherein the tooling is characterized in that: the shaft clamp tool (3) is arranged to be of a half-divided structure.
5. The tooling special for machining the ultra-long hollow shaft according to claim 1, wherein the tooling is characterized in that: the shaft clamp tool (3) is arranged on the outer circle of the end of the bearing bush of the hollow shaft (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322568097.3U CN220863267U (en) | 2023-09-21 | 2023-09-21 | Special frock of overlength hollow shaft processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322568097.3U CN220863267U (en) | 2023-09-21 | 2023-09-21 | Special frock of overlength hollow shaft processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220863267U true CN220863267U (en) | 2024-04-30 |
Family
ID=90815512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322568097.3U Active CN220863267U (en) | 2023-09-21 | 2023-09-21 | Special frock of overlength hollow shaft processing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220863267U (en) |
-
2023
- 2023-09-21 CN CN202322568097.3U patent/CN220863267U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2020397384A1 (en) | Variable-diameter bearing clamp | |
| CN220863267U (en) | Special frock of overlength hollow shaft processing | |
| CN202922232U (en) | Combination fixture used for machining semicircular bearing bushes and lathe adopting combination fixture | |
| CN102126032A (en) | Device for precisely boring lug hole of hinge beam | |
| CN218556339U (en) | Cam positioning tool | |
| CN217617947U (en) | Positioning device for drilling of marine crankshaft flange and ship shafting flange | |
| CN102935584A (en) | Method for machining oil distributor shell | |
| CN201969899U (en) | Device for finely boring earhole of hinge beam | |
| CN220921153U (en) | Gear grinding clamp for shaft part with taper hole | |
| CN220260234U (en) | Centre bore auxiliary positioning frock | |
| CN217966322U (en) | Arc chamfering device applied to optical cold machining coarse grinding process | |
| CN214382945U (en) | Large-scale box processingequipment | |
| CN218426555U (en) | Prevent support frock of loop forming element deformation | |
| CN216966363U (en) | Novel rotor rim frame rotating tire and drilling die positioning combination device | |
| CN219900289U (en) | Connecting base for reaming and honing tool | |
| CN220613533U (en) | Assembled honing head of concatenation | |
| CN215659152U (en) | Internal stay location structure | |
| CN212145639U (en) | Adjusting mechanism of machine tool | |
| CN219188134U (en) | Rotary shaft axial limiting structure of rolling mill roller box | |
| CN215469471U (en) | Processingequipment of dysmorphism piston rod | |
| CN216913267U (en) | Novel cylindrical grinding tool | |
| CN211965603U (en) | Device capable of simultaneously processing multiple irregular tubular parts | |
| CN207349286U (en) | Transmission shaft | |
| CN213744101U (en) | Nuclear power plant reactor coolant pump shaft barring gear | |
| CN220805750U (en) | Gear shaft sleeve type gear shaping tool that rises |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |