CN111992750B - Wedge type external expansion lathe fixture for outer circle of aluminum piston - Google Patents
Wedge type external expansion lathe fixture for outer circle of aluminum piston Download PDFInfo
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- CN111992750B CN111992750B CN202010870736.XA CN202010870736A CN111992750B CN 111992750 B CN111992750 B CN 111992750B CN 202010870736 A CN202010870736 A CN 202010870736A CN 111992750 B CN111992750 B CN 111992750B
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- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 64
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 238000003825 pressing Methods 0.000 claims description 15
- 239000004411 aluminium Substances 0.000 claims description 4
- 238000003754 machining Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/40—Expansion mandrels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B25/00—Accessories or auxiliary equipment for turning-machines
- B23B25/06—Measuring, gauging, or adjusting equipment on turning-machines for setting-on, feeding, controlling, or monitoring the cutting tools or work
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The invention discloses a wedge type external expansion lathe fixture of an outer circle of an aluminum piston, which comprises: the outer edge of the seat body is in a step shape, a first step through hole is formed in the middle of the seat body, and a second step through hole is formed in the side wall of the seat body; the driving piece is connected to the seat body and arranged at the second step through hole; the driven part is arranged in the first step through hole and is contacted with the driving part; the first spring is sleeved on the driven piece; the first moving piece is in threaded connection with the driven piece, and first wedge through grooves are uniformly distributed on the first moving piece; the first jacking piece is matched with the first wedge through groove and penetrates out of the seat body to be used for jacking the inner wall of the aluminum piston; the second moving piece is in threaded connection with the driven piece and is provided with a second wedge through groove; the second jacking piece is matched with the second wedge through groove and penetrates out of the seat body to be used for jacking the inner wall of the aluminum piston; the support piece is connected to the seat body; the technical problems of inconvenience in clamping, poor positioning accuracy, low machining accuracy and low efficiency in the process of machining the excircle and the end face are solved.
Description
Technical Field
The invention relates to the technical field of lathe fixtures, in particular to a wedge type external expansion lathe fixture for an outer circle of an aluminum piston.
Background
The aluminum piston is a key part on an automobile, and the performance of the aluminum piston has great influence on the dynamic property, the economy, the environmental protection and the reliability of an engine, so that the requirement on the manufacturing precision of the aluminum piston is high; the traditional aluminum piston is cast into a blank by a metal die, and then the blank is machined, so that the machining precision is low and the efficiency is low due to the fact that the shape of the aluminum piston is complex, particularly when the outer circle and the end face are machined, clamping is inconvenient, and the positioning precision is poor.
Disclosure of Invention
Aiming at the defects in the prior art, the purpose is to provide the wedge type external expansion lathe fixture for the excircle of the aluminum piston, so as to solve the technical problems of lower processing precision and lower efficiency caused by inconvenient clamping and poor positioning precision during the excircle and end surface processing in the prior art.
The technical scheme for realizing the purpose is as follows: the utility model provides an aluminium piston excircle's wedge formula expands lathe fixture outward, includes:
the outer edge of the seat body is in a step shape, the middle part of the seat body is provided with a first step through hole, the side wall of the seat body is provided with a second step through hole, and the first step through hole is communicated with the second step through hole;
the driving piece is connected to the seat body, arranged at the second stepped through hole and provided with one end penetrating out of the second stepped through hole to the first stepped through hole;
the driven part is arranged in the first stepped through hole, one end of the driven part is in contact with the driving part, and the driven part is linked and rotated by the driving part;
the first spring is sleeved on the driven piece;
the first moving piece is in threaded connection with the driven piece, is arranged in the first stepped through hole and abuts against one end of the first spring, and three first wedge through grooves are uniformly distributed on the excircle of the first moving piece;
one end of each first jacking piece is matched with the corresponding first wedge through groove in a one-to-one mode, and the other end of each first jacking piece penetrates through the seat body and is used for jacking the inner wall of the aluminum piston;
the second moving part is in threaded connection with the driven part, is arranged in the first stepped through hole and is arranged at an interval with the first moving part, and three second wedge through grooves are formed in the excircle of the second moving part;
one end of each second jacking piece is matched with the corresponding second wedge through groove in a one-to-one mode, and the other end of each second jacking piece penetrates through the seat body and is used for jacking the inner wall of the aluminum piston;
and three supporting pieces connected to the seat body and separating the seat body and the aluminum piston.
Further: the driving member includes: the first limiting sleeve is connected to the second step through hole; and the driving gear penetrates through the first limit sleeve, the upper end of the driving gear is provided with a square groove, and the lower end of the driving gear protrudes into the first step through hole.
Further: the follower includes: a central shaft disposed in the first stepped through hole; the driven gear is connected to the central shaft, one end of the driven gear is attached to the first spring, and the other end of the driven gear is meshed with the driving gear; the second limiting sleeve is sleeved on the driven gear and matched with the first step through hole; and the locking piece is connected to the central shaft and limits the driven gear together with the second limiting sleeve.
Further: the first top pressing piece comprises: one end of the first top column is matched with the first wedge through groove in a one-to-one mode, and the other end of the first top column penetrates through the third step through hole in the seat body; and the second spring is sleeved on the first top column and arranged in the third step through hole.
Further: the second top pressing piece comprises: one end of the second top column is matched with the second wedge through groove in a one-to-one mode, and the other end of the second top column penetrates through a fourth stepped through hole in the seat body; and the third spring is sleeved on the second top column and arranged in the fourth stepped through hole.
By adopting the technical scheme, the method has the following beneficial effects: compared with the prior art, the wedge type external expansion lathe fixture for the excircle of the aluminum piston is provided with a base body, one end of the base body is connected to a lathe chuck to form a supporting structure and is used for arranging other components; the driven part, the first spring, the first moving part, the first jacking part, the second moving part and the second jacking part are connected to the seat body; the base body is connected with a driving part, and the driving part is matched with a driven part; the seat body is connected with a supporting piece; when processing the excircle and the end face of the aluminum piston, an operator holds a tool, rotates a driving part anticlockwise (clockwise), the driving part is linked with a driven part to rotate, the driven part is linked with a first moving part to move to the right, one end of a first jacking part falls back into a first wedge through groove, the driven part is linked with a second moving part to move to the left, one end of a second jacking part falls back into a second wedge through groove, an aluminum piston is sleeved on the second jacking part, the inner wall of the end part of the aluminum piston is clung to a supporting part, the operator rotates the driving part anticlockwise (anticlockwise) to enable the first moving part and the second moving part to move reversely, the first jacking part is ejected out of the first wedge through groove and penetrates out of a seat body to jack the inner wall of the aluminum piston, the second jacking part is ejected out of the second wedge through groove and penetrates out of the seat body to jack the inner wall of the aluminum piston, so that the aluminum piston is reliably positioned, the clamping is relatively convenient, and the positioning precision is relatively high, the processing precision is improved; therefore, the technical problems of lower processing precision and lower efficiency caused by inconvenient clamping and poor positioning precision during processing of the excircle and the end face are solved, the technical effects of relatively convenient clamping, relatively higher positioning precision and relatively higher processing precision are achieved, the efficiency is improved, and the device is favorable for popularization and use.
Drawings
FIG. 1 is a schematic view of a three-dimensional assembly structure after a seat body is half-cut;
FIG. 2 is an exploded view of the seat body after half-section;
FIG. 3 is a schematic diagram of a three-dimensional assembly structure in an actual use state;
FIG. 4 is a cross-sectional view A-A of FIG. 3;
FIG. 5 is a cross-sectional view B-B of FIG. 3;
FIG. 6 is a cross-sectional view of the housing;
FIG. 7 is a schematic three-dimensional structure of a first moving member;
FIG. 8 is a schematic three-dimensional structure of the first pressing member;
FIG. 9 is a schematic three-dimensional structure of a second moving member;
FIG. 10 is a schematic three-dimensional structure of a second pressing member;
FIG. 11 is a schematic three-dimensional structure of a prior art aluminum piston;
in the figure: 10. the sliding type automobile seat comprises a seat body, 11, a first step through hole, 12, a second step through hole, 13, a third step through hole, 14, a fourth step through hole, 20, a driving part, 21, a first limiting sleeve, 22, a driving gear, 221, a square groove, 30, a driven part, 31, a central shaft, 32, a driven gear, 33, a second limiting sleeve, 34, a locking part, 40, a first spring, 50, a first moving part, 51, a first wedge through groove, 60, a first jacking part, 61, a first jacking column, 62, a second spring, 70, a second moving part, 71, a second wedge through groove, 80, a second jacking part, 81, a second jacking column, 82, a third spring, 90, a supporting part and 100, and an aluminum piston.
Detailed Description
In order that the matter may be more readily and clearly understood, further details are set forth in the following description, taken in conjunction with the accompanying drawings, in which like reference numerals refer to like parts;
the utility model provides a wedge type lathe fixture that expands outward of aluminium piston excircle, when having solved processing excircle and terminal surface among the correlation technique, the clamping is inconvenient, and positioning accuracy is poor, has leaded to the machining precision lower, and the technical problem that efficiency is lower has reached the clamping and is convenient relatively, and positioning accuracy is higher relatively, and the machining precision is higher relatively, has improved the positive effect of efficiency, and the general thinking is as follows:
one embodiment is as follows:
as shown in fig. 1, 2, 3, 4, 5, 11; the utility model provides an aluminium piston excircle's wedge formula expands lathe fixture outward, includes:
the outer edge of the seat body 10 is in a step shape, a first step through hole 11 is formed in the middle of the seat body, a second step through hole 12 is formed in the side wall of the seat body, and the first step through hole 11 is communicated with the second step through hole 12;
the driving part 20 is connected to the seat body 10, is arranged at the second stepped through hole 12, and has one end penetrating out of the second stepped through hole 12 to the first stepped through hole 11;
a driven member 30 disposed in the first stepped through hole 11, having one end contacting the driving member 20, and rotated by the driving member 20 in an interlocking manner;
a first spring 40 sleeved on the follower 30;
the first moving part 50 is in threaded connection with the driven part 30, is arranged in the first stepped through hole 11 and abuts against one end of the first spring 40, and three first wedge through grooves 51 are uniformly distributed on the excircle of the first moving part 50;
three first pressing members 60, one end of which is matched with the first wedge through groove 51 one-to-one, and the other end of which penetrates through the seat body 10 and is used for pressing against the inner wall of the aluminum piston 100;
a second moving member 70 screwed on the driven member 30, disposed in the first stepped through hole 11, spaced apart from the first moving member 50, and having three second cam through grooves 71 on an outer circumference of the second moving member 70;
one end of each of the three second jacking members 80 is matched with the corresponding second wedge through groove 71 in a one-to-one manner, and the other end of each of the three second jacking members penetrates through the seat body 10 and is used for jacking the inner wall of the aluminum piston 100;
and three supporting members 90 connected to the seat body 10 to separate the seat body 10 and the aluminum piston 100;
specifically, when the lathe is implemented, the base 10 is arranged, one end of the base is connected to a lathe chuck to form a supporting structure, and the supporting structure is used for arranging other components; the driven member 30, the first spring 40, the first moving member 50, the first pressing member 60, the second moving member 70 and the second pressing member 80 are connected to the base 10; the base body 10 is connected with a driving part 20, and the driving part 20 is matched with a driven part 30; a support 90 is connected on the seat body 10; when the outer circle and the end face of the aluminum piston 100 are processed, an operator holds a tool, rotates the driving part 20 counterclockwise (clockwise), the driving part 20 is linked with the driven part 30 to rotate, the driven part 30 is linked with the first moving part 50 to move to the right, one end of the first jacking part 60 falls back into the first wedge through groove 51, the driven part 30 is linked with the second moving part 70 to move to the left, one end of the second jacking part 80 falls back into the second wedge through groove 71 to be sleeved with the aluminum piston 100, the inner wall of the end part of the aluminum piston 100 is tightly attached to the supporting part 90, the operator rotates the driving part 20 clockwise (anticlockwise) to enable the first moving part 50 and the second moving part 70 to move reversely, the first jacking part 60 is ejected out of the first wedge through groove 51 and penetrates out of the seat body 10 to jack against the inner wall of the aluminum piston 100, the second jacking part 80 is ejected out of the second wedge through groove 71 and penetrates out of the seat body 10 to jack the inner wall of the aluminum piston 100, the aluminum piston 100 is reliably positioned, the clamping is relatively convenient, the positioning precision is relatively high, and the processing precision is improved;
in another embodiment:
as shown in fig. 1, 2, 3, 4, 5, 6; in implementation, the seat body 10 is formed by forging a blank and machining, a first stepped through hole 11, a second stepped through hole 12, a third stepped through hole 13 and a fourth stepped through hole 14 are formed, one end of the seat body is connected to a lathe chuck, and a stable supporting structure is formed and used for arranging other components;
the third stepped through hole 13 is arranged to facilitate installation of the first jacking member 60, when the first jacking member 60 is installed, the third stepped through hole 13 is a through hole, and then an annular stop block is welded at the through hole and blocks the first jacking member 60, so that the first jacking member 60 is limited;
the fourth stepped through hole 14 is arranged to facilitate installation of the second jacking member 80, when the second jacking member 80 is installed, the fourth stepped through hole 14 is a through hole, and then an annular stop block is welded at the through hole and blocks the second jacking member 80, so that the second jacking member 80 is limited;
in another embodiment:
as shown in fig. 1, 2, 3; in practice, the active part 20 comprises: the first limiting sleeve 21 is connected to the second step through hole 12; the driving gear 22 penetrates through the first limiting sleeve 21, the upper end of the driving gear is provided with a square groove 221, and the lower end of the driving gear protrudes into the first stepped through hole 11; the first limiting sleeve 21 is approximately of a T-shaped structure, the middle part of the first limiting sleeve is provided with a first through hole, the first limiting sleeve is connected to the seat body 10 through a countersunk head screw and is matched with the second step through hole 12;
the drive gear 22 includes: the first shaft part penetrates through the first through hole and is tightly matched with the first through hole according to normal tolerance, and the top of the first shaft part is provided with the square groove 221; and a first gear part which is a bevel gear, is connected to one end of the first shaft part, is provided in the first stepped through hole 11, and is engaged with the driven gear 32;
the square groove 221 is arranged, so that an operator can hold the tool by hand and can rotate the driving part 20 conveniently;
in another embodiment:
as shown in fig. 1, 2, 3; in practice, the follower 30 comprises: a center shaft 31 disposed in the first stepped through hole 11; a driven gear 32 connected to the central shaft 31, one end of which is attached to the first spring 40 and the other end of which is engaged with the driving gear 22; the second limiting sleeve 33 is sleeved on the driven gear 32 and matched with the first step through hole 11; and a locking member 34 connected to the central shaft 31 to limit the driven gear 32 together with the second limit sleeve 33;
the central shaft 31 is a stepped shaft and is formed by machining a section of round steel; the driven gear 32 is a bevel gear, is tightly matched with the central shaft 31 according to normal tolerance, and is connected with a key between the driven gear 32 and the central shaft 31, so that the driven gear 32 and the central shaft 31 can synchronously rotate; the second limiting sleeve 33 is approximately of a T-shaped structure, a second through hole is formed in the middle of the second limiting sleeve, the outer circle of the second limiting sleeve is tightly matched with the first stepped through hole 11 according to normal tolerance, the second through hole is in clearance fit with the driven gear 32 according to normal tolerance, and the driven gear 32 is limited without influencing normal rotation of the driven gear 32; the locking member 34 comprises a nut and a washer, wherein the nut is in threaded connection with the central shaft 31 and is used for locking and limiting the driven gear 32;
the driving part 20 is linked with the driven part 30 to rotate, the central shaft 31 is linked with the first moving part 50 and the second moving part 70 to move along the central shaft 31, so that the three first jacking parts 60 and the three second jacking parts 80 synchronously act to jack or loosen the aluminum piston 100, the aluminum piston 100 can be reliably positioned, the positioning precision is relatively high, and the aluminum piston 100 is convenient to clamp;
in another embodiment:
as shown in fig. 1, 2, 3; in practice, the first spring 40 is a cylindrical spring, and is used for separating the driven gear 32 from the first moving part 50, so that the driven gear 32 is limited, and meanwhile, the first spring 40 can be compressed, so that the first moving part 50 has a sufficient moving distance, and the elastic force generated after the first spring 40 is compressed is also beneficial to the moving position of the first moving part 50;
in another embodiment:
as shown in fig. 1, 2, 3, 4, 7, 8; in implementation, the section of the first moving part 50 is approximately of a circular ring structure, the inner hole is provided with a first inner thread which is in threaded connection with a first outer thread on the central shaft 31, and the outer circle is in clearance fit with the first stepped through hole 11 according to normal tolerance, so that the first moving part 50 can smoothly slide;
the first pressing member 60 includes: one end of the first top pillar 61 is matched with the first wedge through groove 51 in a one-to-one manner, and the other end of the first top pillar penetrates through the third step through hole 13 on the seat body 10; the second spring 62 is sleeved on the first top column 61 and arranged in the third step through hole 13; the first top pillar 61 is machined by a section of round steel, the shape is approximately step-shaped, one end of the first top pillar is provided with a first wedge surface, and the first wedge surface is matched with a second wedge surface on the first wedge through groove 51; the second spring 62 is a cylindrical spring; when the first moving part 50 moves, the second wedge surface contacts with the first wedge surface, so that the first top pillar 61 is pushed, the second spring 62 is compressed, at the moment, one end of the first top pillar 61 penetrates out of the third step through hole 13 and can be propped against the inner wall of the aluminum piston 100, and the purpose of positioning the aluminum piston 100 is realized;
in another embodiment:
as shown in fig. 1, 2, 3, 5, 9, 10; in implementation, the section of the second moving part 70 is approximately of a circular ring structure, the inner hole is provided with a second inner thread which is in threaded connection with a second outer thread on the central shaft 31, and the outer circle is in clearance fit with the first stepped through hole 11 according to normal tolerance, so that the second moving part 70 can smoothly slide;
the second pressing member 80 includes: one end of the second top pillar 81 is matched with the second wedge through groove 71 in a one-to-one manner, and the other end penetrates through the fourth step through hole 14 on the seat body 10; the third spring 82 is sleeved on the second top column 81 and arranged in the fourth stepped through hole 14; the second top pillar 81 is machined by a section of round steel, the shape of the second top pillar is approximately step-shaped, one end of the second top pillar is provided with a third wedge surface, and the third wedge surface is matched with a fourth wedge surface on the second wedge through groove 71; the third spring 82 is a cylindrical spring; when the second moving member 70 moves, the third wedge surface contacts with the fourth wedge surface, so that the second ejection column 81 is pushed, the third spring 82 is compressed, and at this time, one end of the second ejection column 81 penetrates through the fourth stepped through hole 14 and can be abutted against the inner wall of the aluminum piston 100, so that the purpose of positioning the aluminum piston 100 is achieved;
in another embodiment:
as shown in fig. 1, 2, 3, 5; in implementation, the supporting member 90 is connected to the seat body 10 by using an outer hexagon bolt or a T-shaped pin, so as to separate the seat body 10 from the aluminum piston 100, prevent the aluminum piston 100 from directly contacting the seat body 10, so as to prevent the seat body 10 from being worn, and limit the aluminum piston 100, thereby being beneficial to ensuring the installation accuracy;
in another embodiment:
as shown in fig. 1, 2, 3, 4, 5; in practice, the first pressing member 60 and the second pressing member 80 both have a first state and a second state;
in the first state, one end of the first pressing member 60 falls back into the first wedge through groove 51, and the other end forms an outer diameter smaller than the inner diameter of the aluminum piston 100; one end of the second jacking member 80 falls back into the second wedge through groove 71, and the outer diameter size formed by the other end is smaller than the inner diameter size of the aluminum piston 100;
in the second state, the large outer edges formed by the first jacking member 60 and the second jacking member 80 are respectively clung to the inner wall of the aluminum piston 100 to position the aluminum piston 100;
the working principle is as follows: when the outer circle and the end face of the aluminum piston 100 are processed, an operator holds a tool, rotates the driving part 20 counterclockwise (clockwise), the driving part 20 is linked with the driven part 30 to rotate, the driven part 30 is linked with the first moving part 50 to move to the right, one end of the first jacking part 60 falls back into the first wedge through groove 51, the driven part 30 is linked with the second moving part 70 to move to the left, one end of the second jacking part 80 falls back into the second wedge through groove 71 to be sleeved with the aluminum piston 100, the inner wall of the end part of the aluminum piston 100 is tightly attached to the supporting part 90, the operator rotates the driving part 20 clockwise (anticlockwise) to enable the first moving part 50 and the second moving part 70 to move reversely, the first jacking part 60 is ejected out of the first wedge through groove 51 and penetrates out of the seat body 10 to jack against the inner wall of the aluminum piston 100, the second jacking part 80 is ejected out of the second wedge through groove 71 and penetrates out of the seat body 10 to jack the inner wall of the aluminum piston 100, the aluminum piston 100 is reliably positioned, the clamping is relatively convenient, the positioning precision is relatively high, and the processing precision is improved;
in the description, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on the positional relationships illustrated in the drawings, and are only for convenience of description or simplicity of description, but do not indicate that a particular orientation must be provided; the operation process described in the embodiment is not an absolute use step, and corresponding adjustment can be made during actual use;
unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art; the use of "first," "second," and the like in the description and in the claims does not denote any order, quantity, or importance, but rather the terms "a" and "an" and the like are used to distinguish one element from another, and likewise, no limitation of quantity is implied, but rather at least one is implied, as is determined by the context of the embodiment;
the above description is only for the preferred embodiment, but the scope of protection is not limited thereto, and any equivalent replacement or change based on the technical solution and the inventive concept within the technical scope of the disclosure of the person skilled in the art should be covered by the scope of protection.
Claims (5)
1. The utility model provides a wedge type of aluminium piston excircle expands turning attachment outward which characterized in that includes:
the outer edge of the seat body (10) is in a step shape, a first step through hole (11) is formed in the middle of the seat body, a second step through hole (12) is formed in the side wall of the seat body, and the first step through hole (11) is communicated with the second step through hole (12);
the driving piece (20) is connected to the seat body (10), arranged at the second stepped through hole (12), and one end of the driving piece penetrates out of the second stepped through hole (12) to the first stepped through hole (11);
a driven member (30) disposed in the first stepped through hole (11), and having one end contacting the driving member (20) and rotated in conjunction with the driving member (20);
a first spring (40) sleeved on the driven member (30);
the first moving part (50) is in threaded connection with the driven part (30), is arranged in the first stepped through hole (11) and abuts against one end of the first spring (40), and three first wedge through grooves (51) are uniformly distributed on the excircle of the first moving part (50);
one end of each first jacking piece (60) is matched with the corresponding first wedge through groove (51) in a one-to-one mode, and the other end of each first jacking piece penetrates through the seat body (10) and is used for jacking the inner wall of the aluminum piston (100);
the second moving part (70) is in threaded connection with the driven part (30), is arranged in the first stepped through hole (11) and is spaced from the first moving part (50), and three second wedge through grooves (71) are formed in the excircle of the second moving part (70);
one end of each second jacking piece (80) is matched with the corresponding second wedge through groove (71) in a one-to-one mode, and the other end of each second jacking piece penetrates through the seat body (10) and is used for jacking the inner wall of the aluminum piston (100);
and three supporting pieces (90) connected to the seat body (10) and separating the seat body (10) and the aluminum piston (100).
2. The tapered wedge type external expansion lathe fixture of the outer circle of the aluminum piston as claimed in claim 1, characterized in that: the driving member (20) includes: the first limiting sleeve (21) is connected to the second step through hole (12); and the driving gear (22) penetrates through the first limiting sleeve (21), the upper end of the driving gear is provided with a square groove (221), and the lower end of the driving gear protrudes into the first step through hole (11).
3. The tapered wedge type external expansion lathe fixture of the outer circle of the aluminum piston as claimed in claim 2, characterized in that: the follower (30) comprises: a central shaft (31) disposed in the first stepped through hole (11); a driven gear (32) connected to the central shaft (31), one end of which is attached to the first spring (40), and the other end of which is engaged with the driving gear (22); the second limiting sleeve (33) is sleeved on the driven gear (32) and matched with the first stepped through hole (11); and a locking member (34) connected to the central shaft (31) and limiting the driven gear (32) together with the second limiting sleeve (33).
4. The tapered wedge type external expansion lathe fixture of the outer circle of the aluminum piston as claimed in claim 1, characterized in that: the first pressing member (60) includes: one end of the first top column (61) is matched with the first wedge through groove (51) in a one-to-one mode, and the other end of the first top column penetrates through a third step through hole (13) in the seat body (10); and the second spring (62) is sleeved on the first top column (61) and arranged in the third step through hole (13).
5. The tapered wedge type external expansion lathe fixture of the outer circle of the aluminum piston as claimed in claim 1, characterized in that: the second pressing member (80) includes: one end of the second top column (81) is matched with the second wedge through groove (71) in a one-to-one mode, and the other end of the second top column penetrates through a fourth stepped through hole (14) in the seat body (10); and a third spring (82) sleeved on the second top column (81) and arranged in the fourth stepped through hole (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010870736.XA CN111992750B (en) | 2020-08-26 | 2020-08-26 | Wedge type external expansion lathe fixture for outer circle of aluminum piston |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010870736.XA CN111992750B (en) | 2020-08-26 | 2020-08-26 | Wedge type external expansion lathe fixture for outer circle of aluminum piston |
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| Publication Number | Publication Date |
|---|---|
| CN111992750A CN111992750A (en) | 2020-11-27 |
| CN111992750B true CN111992750B (en) | 2021-07-30 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS584304A (en) * | 1981-06-29 | 1983-01-11 | Kanto Tokushu Seikou Kk | Holder for cutting-off operation |
| CN104525997A (en) * | 2014-12-24 | 2015-04-22 | 重庆元创自动化设备有限公司 | Pipe fitting inside expansion clamping device |
| CN104551068A (en) * | 2014-12-12 | 2015-04-29 | 安徽白兔湖动力股份有限公司 | Outer circle turning liquid plastic core clamping device suitable for national IV air cylinder sleeve |
| CN108436124A (en) * | 2018-05-18 | 2018-08-24 | 兰州城市学院 | A kind of symmetrical bikini expanding arbor fixture |
| CN109513960A (en) * | 2018-11-23 | 2019-03-26 | 贵州航天风华精密设备有限公司 | A kind of swelling device of processing thin-walled cylinder shape part |
| CN208913171U (en) * | 2018-09-21 | 2019-05-31 | 吉林博仁科技有限责任公司 | The secondary positioning expander device of three pin shaft forks |
| CN110744086A (en) * | 2019-11-14 | 2020-02-04 | 苏州市职业大学 | Internal-expansion laminating type thin-wall roller clamping device |
| CN210231571U (en) * | 2019-06-19 | 2020-04-03 | 武义超野五金制品有限公司 | Telescopic internal stay |
-
2020
- 2020-08-26 CN CN202010870736.XA patent/CN111992750B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS584304A (en) * | 1981-06-29 | 1983-01-11 | Kanto Tokushu Seikou Kk | Holder for cutting-off operation |
| CN104551068A (en) * | 2014-12-12 | 2015-04-29 | 安徽白兔湖动力股份有限公司 | Outer circle turning liquid plastic core clamping device suitable for national IV air cylinder sleeve |
| CN104525997A (en) * | 2014-12-24 | 2015-04-22 | 重庆元创自动化设备有限公司 | Pipe fitting inside expansion clamping device |
| CN108436124A (en) * | 2018-05-18 | 2018-08-24 | 兰州城市学院 | A kind of symmetrical bikini expanding arbor fixture |
| CN208913171U (en) * | 2018-09-21 | 2019-05-31 | 吉林博仁科技有限责任公司 | The secondary positioning expander device of three pin shaft forks |
| CN109513960A (en) * | 2018-11-23 | 2019-03-26 | 贵州航天风华精密设备有限公司 | A kind of swelling device of processing thin-walled cylinder shape part |
| CN210231571U (en) * | 2019-06-19 | 2020-04-03 | 武义超野五金制品有限公司 | Telescopic internal stay |
| CN110744086A (en) * | 2019-11-14 | 2020-02-04 | 苏州市职业大学 | Internal-expansion laminating type thin-wall roller clamping device |
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| Publication number | Publication date |
|---|---|
| CN111992750A (en) | 2020-11-27 |
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