CN221088141U - Novel hydraulic four-point self-centering center frame - Google Patents
Novel hydraulic four-point self-centering center frame Download PDFInfo
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- CN221088141U CN221088141U CN202322751005.5U CN202322751005U CN221088141U CN 221088141 U CN221088141 U CN 221088141U CN 202322751005 U CN202322751005 U CN 202322751005U CN 221088141 U CN221088141 U CN 221088141U
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- hydraulic cylinder
- annular frame
- point self
- centering
- hydraulic
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- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 230000002457 bidirectional effect Effects 0.000 claims description 8
- 125000003003 spiro group Chemical group 0.000 claims description 5
- 230000001360 synchronised effect Effects 0.000 abstract description 4
- 238000003754 machining Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a novel hydraulic four-point self-centering center frame, which comprises an annular frame, wherein a cylindrical hole is formed in the bottom of the annular frame, a first hydraulic cylinder is fixedly connected in the cylindrical hole, a second hydraulic cylinder is fixedly arranged at the top of the annular frame, the first hydraulic cylinder and the second hydraulic cylinder are axially symmetrically arranged, supporting mechanisms for fixing workpieces are respectively arranged at the end parts of piston rods of the first hydraulic cylinder and the second hydraulic cylinder, an axle workpiece is connected between the two supporting mechanisms, oil paths of the two supporting mechanisms are connected in series by utilizing the first hydraulic cylinder and the second hydraulic cylinder so as to realize synchronous motion, and the supporting mechanisms are arranged at the end parts of piston rods of the first hydraulic cylinder and the second hydraulic cylinder and are contacted with the surfaces of the axle workpiece by utilizing four rollers on the two supporting mechanisms, so that four-point self-centering operation can be rapidly performed on the axle workpiece, and the working efficiency of the axle workpiece is greatly improved.
Description
Technical Field
The utility model relates to the technical field of self-centering center frames, in particular to a novel hydraulic four-point self-centering center frame.
Background
Self-centering steady rests are commonly used in machining of elongated shaft-like parts as an aid to radially support the rotating workpiece during machining.
The patent document with the prior publication number of CN214722245U discloses a novel hydraulic self-centering center frame, which comprises a swing arm assembly, a shell assembly and a power assembly, wherein the swing arm assembly and the power assembly are respectively movably installed at the upper end and the lower end of the shell assembly; the shell assembly comprises a mounting shell, head end notch and tail end notch have been seted up respectively to the upper and lower both ends mouth of mounting shell, swing arm assembly includes left swing arm and right swing arm, left side swing arm and right swing arm use the center pin of mounting shell is axisymmetric installs the inside of mounting shell, just the middle part of left side swing arm and the middle part of right swing arm overlap each other and are X style of calligraphy to rotate through fixed bearing and connect, fixed bearing's centre of a circle department is through the second bearing round pin fixed connection who is equipped with to the mounting shell, just the top of left side swing arm and the top of right swing arm all pass the head end notch extends to the top outside of mounting shell, just the worm wheel is all installed through the fixed axle rotation to the bottom of left side swing arm and the bottom of right swing arm, power assembly includes pneumatic cylinder and conical worm, the one end of pneumatic cylinder passes through the piston rod the tail end notch, the piston rod is kept away from the one end of pneumatic cylinder is through push rod fixedly connected with conical worm, just conical worm with worm meshes mutually.
Although the novel hydraulic self-centering bracket can solve the corresponding technical problems, in the use process, long shaft parts with different thicknesses are not easy to perform quick self-centering.
Therefore, we propose a novel hydraulic four-point self-centering center frame.
Disclosure of utility model
The utility model aims to provide a novel hydraulic four-point self-centering center frame which is used for solving the problems set forth in the background technology.
In order to achieve the above purpose, the main technical scheme adopted by the utility model comprises the following steps:
a novel hydraulic four-point self-centering steady rest comprising:
the annular frame, the cylinder hole has been seted up to the bottom of annular frame, the first pneumatic cylinder of cylinder downthehole fixedly connected with, the top fixed mounting of annular frame has the second pneumatic cylinder, first pneumatic cylinder with second pneumatic cylinder axial symmetry sets up, first pneumatic cylinder with the supporting mechanism for fixing the work piece is all installed to the piston rod tip of second pneumatic cylinder, two be connected with axle type work piece between the supporting mechanism.
As the preferable technical scheme, supporting mechanism includes the fixed plate, the recess has been seted up to the one end of fixed plate, be connected with bi-directional screw through the bearing rotation in the recess, bi-directional screw's surface spiro union has two sliding blocks, two the middle part of sliding block is connected with the running roller through the pivot rotation.
As the preferable technical scheme, one end of the bidirectional screw rod penetrates through one end of the fixed plate and is provided with a hand wheel.
As the preferable technical scheme, the bottom surface of annular frame is connected with the base, the middle part of base passes through two hexagon socket head cap bolts to be connected in two screw holes one of annular frame bottom.
As the preferable technical scheme, the two ends of the base are provided with mounting holes.
As the preferable technical scheme, the one end spiro union of annular frame has the screwed pipe, the percentage table is installed to the one end of screwed pipe, the thimble of percentage table slide in the screwed pipe and the bottom butt in the surface of axle class work piece.
The utility model has at least the following beneficial effects:
the utility model has the beneficial effects that the first hydraulic cylinder and the second hydraulic cylinder are connected in series through the oil paths of the first hydraulic cylinder and the second hydraulic cylinder so as to realize synchronous movement, the supporting mechanisms are arranged at the end parts of the piston rods of the first hydraulic cylinder and the second hydraulic cylinder, and four rollers on the two supporting mechanisms are contacted with the surface of the shaft workpiece, so that the four-point self-centering operation can be rapidly carried out on the shaft workpiece, and the working efficiency of the shaft workpiece is greatly improved.
Through the installation percentage table, make its thimble butt in axle type work piece, can carry out real-time supervision to the axle type work piece that is being processed to improve the machining precision of axle type work piece.
Drawings
FIG. 1 is a schematic perspective view of a novel hydraulic four-point self-centering center frame of the present utility model;
FIG. 2 is a schematic front view of a novel hydraulic four-point self-centering center frame of the present utility model;
FIG. 3 is a schematic illustration of a novel hydraulic four-point self-centering center frame in a cross sectional view;
Fig. 4 is an enlarged schematic view of a portion a of a novel hydraulic four-point self-centering center frame according to the present utility model.
In the figure: 1. an annular frame; 101. a first threaded hole; 102. a cylindrical hole; 2. a base; 201. an inner hexagon bolt; 202. a mounting hole; 3. a first hydraulic cylinder; 4. a second hydraulic cylinder; 5. a dial indicator; 501. a thimble; 6. a threaded tube; 7. a shaft-like workpiece; 401. a fixing plate; 402. a groove; 403. a bidirectional screw; 404. a sliding block; 405. a roller; 406. a rotating shaft; 407. and a hand wheel.
Detailed Description
The following description of the embodiments of the present utility model 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 utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, the present embodiment provides a novel hydraulic four-point self-centering frame, comprising: the annular frame 1, cylindrical hole 102 has been seted up to the bottom of annular frame 1, and the first pneumatic cylinder 3 of fixedly connected with in the cylindrical hole 102, the top fixed mounting of annular frame 1 have second pneumatic cylinder 4, and first pneumatic cylinder 3 and second pneumatic cylinder 4 axial symmetry set up, and the supporting mechanism that is used for fixed to the work piece is all installed to the piston rod tip of first pneumatic cylinder 3 and second pneumatic cylinder 4, is connected with axle type work piece 7 between two supporting mechanism.
The first hydraulic cylinder 3 and the second hydraulic cylinder 4 are connected in series in hydraulic oil paths, so that synchronous movement can be realized, which is the prior art and is not described here.
The supporting mechanism comprises a fixing plate 401, a groove 402 is formed in one end of the fixing plate 401, a bidirectional screw 403 is rotatably connected in the groove 402 through a bearing, two sliding blocks 404 are screwed on the surface of the bidirectional screw 403, and rollers 405 are rotatably connected in the middle of the two sliding blocks 404 through a rotating shaft 406. Through rotating bi-directional screw 403, make two sliding blocks 404 of spiro union on bi-directional screw 403 remove in opposite directions to drive through the running roller 405 removal of pivot rotation on two sliding blocks 404, thereby can carry out four-point self-centering support to the axle type work piece 7 work piece of different thickness, promoted the suitability of axle type work piece 7 processing work greatly.
One end of the bi-directional screw 403 penetrates through one end of the fixing plate 401, and a hand wheel 407 is installed. By mounting a hand wheel 407 at one end of the bi-directional screw 403, it facilitates adjustment of the bi-directional screw 403.
The bottom surface of the annular frame 1 is connected with a base 2, and the middle part of the base 2 is connected in two threaded holes 101 at the bottom of the annular frame 1 through two hexagon socket head cap bolts 201. Through using two hexagon socket head cap screws 201 to connect, it can be according to the lathe of difference change suitable base 2 to the demand of adaptation lathe, thereby promote its convenient variety.
Wherein, the two ends of the base 2 are provided with mounting holes 202. Is convenient to be installed on an adaptive machine tool.
Wherein, the one end spiro union of annular frame 1 has screwed pipe 6, and percentage table 5 is installed to the one end of screwed pipe 6, and the thimble 501 of percentage table 5 slides in screwed pipe 6 and bottom butt in the surface of axle type work piece 7. By installing the dial indicator 5 so that the ejector pins 501 are abutted against the surface of the shaft workpiece 7, the shaft workpiece 7 being processed can be monitored in real time, and the processing precision of the shaft workpiece 7 can be improved.
The working principle of the utility model is as follows: firstly, the bottom of the annular frame 1 is provided with a base 2 matched with a machine tool through an inner hexagon bolt 201, the base 2 is fixed on the machine tool, a hand wheel 407 is rotated to drive a bidirectional screw 403 to rotate, so that two sliding blocks 404 screwed on the bidirectional screw 403 move in opposite directions to drive two rollers 405 to move, after the distance between the four rollers 405 is adjusted to a proper size, a first hydraulic cylinder 3 and a second hydraulic cylinder 4 are started to make two synchronous movements, and then the four-point self-centering operation is carried out on a shaft workpiece 7, a thimble 501 of a dial indicator 5 is abutted against the surface of the shaft workpiece 7, the shaft workpiece 7 can be detected, and the machining precision of the shaft workpiece 7 is improved, namely the operation on the novel hydraulic four-point self-centering center frame is completed.
None of the utility models are related to the same or are capable of being practiced in the prior art. Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A novel hydraulic four-point self-centering frame, comprising:
the device comprises an annular frame (1), wherein a cylindrical hole (102) is formed in the bottom of the annular frame (1), a first hydraulic cylinder (3) is fixedly connected in the cylindrical hole (102), a second hydraulic cylinder (4) is fixedly arranged at the top of the annular frame (1), the first hydraulic cylinder (3) and the second hydraulic cylinder (4) are axially symmetrically arranged, supporting mechanisms for fixing workpieces are arranged at the end parts of piston rods of the first hydraulic cylinder (3) and the second hydraulic cylinder (4), and shaft workpieces (7) are connected between the two supporting mechanisms.
2. The novel hydraulic four-point self-centering cage of claim 1, wherein: the supporting mechanism comprises a fixed plate (401), a groove (402) is formed in one end of the fixed plate (401), a bidirectional screw (403) is rotatably connected in the groove (402) through a bearing, two sliding blocks (404) are screwed on the surface of the bidirectional screw (403), and rollers (405) are rotatably connected to the middle parts of the two sliding blocks (404) through rotating shafts (406).
3. A novel hydraulic four-point self-centering steady rest according to claim 2, characterized in that: one end of the two-way screw (403) penetrates through one end of the fixed plate (401) and is provided with a hand wheel (407).
4. The novel hydraulic four-point self-centering cage of claim 1, wherein: the bottom surface of annular frame (1) is connected with base (2), the middle part of base (2) is connected in two screw holes (101) of annular frame (1) bottom through two hexagon socket head cap bolts (201).
5. The novel hydraulic four-point self-centering cage of claim 4, wherein: mounting holes (202) are formed in two ends of the base (2).
6. A novel hydraulic four-point self-centering cradle according to any one of claims 1-5, wherein: one end spiro union of annular frame (1) has screwed pipe (6), percentage table (5) are installed to one end of screwed pipe (6), thimble (501) of percentage table (5) slide in screwed pipe (6) and the bottom butt in the surface of axle type work piece (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322751005.5U CN221088141U (en) | 2023-10-13 | 2023-10-13 | Novel hydraulic four-point self-centering center frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322751005.5U CN221088141U (en) | 2023-10-13 | 2023-10-13 | Novel hydraulic four-point self-centering center frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221088141U true CN221088141U (en) | 2024-06-07 |
Family
ID=91305052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322751005.5U Active CN221088141U (en) | 2023-10-13 | 2023-10-13 | Novel hydraulic four-point self-centering center frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221088141U (en) |
-
2023
- 2023-10-13 CN CN202322751005.5U patent/CN221088141U/en active Active
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