CN115319511B - Turning device and turning method for eccentric part - Google Patents
Turning device and turning method for eccentric part Download PDFInfo
- Publication number
- CN115319511B CN115319511B CN202210918765.8A CN202210918765A CN115319511B CN 115319511 B CN115319511 B CN 115319511B CN 202210918765 A CN202210918765 A CN 202210918765A CN 115319511 B CN115319511 B CN 115319511B
- Authority
- CN
- China
- Prior art keywords
- eccentric
- face
- eccentric part
- positioning
- hole
- 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
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000003754 machining Methods 0.000 claims description 77
- 239000002994 raw material Substances 0.000 claims description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 10
- 230000001154 acute effect Effects 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 210000002421 cell wall Anatomy 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000005728 strengthening Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/12—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for securing to a spindle in general
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B5/00—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The application discloses a turning device and a turning method for eccentric parts, comprising a clamp body, an end face cover plate and a connecting assembly, wherein the clamp body comprises a clamping surface of a chuck, a positioning surface and a clamp eccentric hole, the eccentricity of the clamp eccentric hole is equal to that of a part eccentric hole of the eccentric part, the end face cover plate is connected with the end face of the clamp body in a matched manner through the connecting assembly, the rotation center of the end face cover plate is coaxial with the rotation center of the clamp body, and the rotation center of the end face cover plate is provided with a positioning boss matched with the part eccentric hole. The eccentric distance of the eccentric hole of the clamp is equal to the eccentric distance of the eccentric hole of the part of the eccentric part, so that the technical problems of difficult alignment and clamping and high processing difficulty of the eccentric part are solved, and the technical effects of rapidness and simplicity in alignment and clamping and easiness in processing of the eccentric part are realized.
Description
Technical Field
The application relates to the field of machining, in particular to a turning device and a turning method for eccentric parts.
Background
Eccentric parts are a very common type of workpiece in the machining process, and by eccentric parts is meant that the axes of an outer circle and an outer circle or an outer circle and an inner hole are parallel but not coincident, and a certain distance exists between the two axes, and the distance between the two parallel axes is called eccentricity. The eccentric parts are turned, so that alignment and clamping are difficult, and the machining difficulty is high.
The foregoing is provided merely for the purpose of facilitating understanding of the technical solutions of the present application and is not intended to represent an admission that the foregoing is prior art.
Disclosure of Invention
The application mainly aims to provide a turning device and a turning method for eccentric parts, and aims to solve the technical problems of difficult alignment and clamping and high machining difficulty of eccentric parts.
In order to achieve the above purpose, the application provides a turning device for eccentric parts, which comprises a clamp body, an end face cover plate and a connecting component;
the fixture body comprises a chuck clamping surface for clamping a lathe spindle chuck, a positioning surface for positioning the fixture body and a fixture eccentric hole for clamping an eccentric part;
the eccentricity of the eccentric hole of the clamp is equal to the eccentricity of the eccentric hole of the eccentric part;
the end face cover plate is connected with the end face of the clamp body in a matched mode through the connecting assembly, the rotation center of the end face cover plate is coaxial with the rotation center of the clamp body, and a positioning boss matched with the eccentric hole of the part is arranged on the rotation center of the end face cover plate.
Optionally, the end face cover plate includes first face and second face, the location boss includes first location boss and second location boss, first location boss sets up the end face cover plate first face, the second location boss sets up the end face cover plate the second face, just still be provided with on the second face with eccentric part terminal surface complex part dodges the hole.
Optionally, the clamping fixture further comprises an opening elastic clamping sleeve, wherein the inner side of the opening elastic clamping sleeve is in clamping fit with the eccentric part, and the outer side of the opening elastic clamping sleeve is in clamping fit with the eccentric hole of the clamping fixture.
Optionally, the open elastic jacket has at least one through groove along the axial direction.
Optionally, the open elastic jacket is provided with at least one break groove along the axial direction, the break groove comprises a groove side wall and a groove bottom, and an included angle between the side wall and the groove bottom is an acute angle or an obtuse angle.
Optionally, the elastic jacket comprises a through groove and two break grooves, wherein the through groove and the two break grooves are equidistantly spaced on the circumference of the elastic jacket.
Optionally, the end cover plate is in a disc structure.
Optionally, the fixture body is flange step bush structure, the fixture body includes open slot, first outer cylinder, second outer cylinder and step face, the open slot will the eccentric hole of anchor clamps with the external intercommunication of fixture, first outer cylinder forms the chuck clamping face, the step face forms the locating surface.
In addition, in order to achieve the above object, the present application also provides a turning method of an eccentric part, the method comprising:
heat treating the raw material bar stock;
processing the raw material bar after heat treatment on a lathe to obtain a primary processed bar;
machining the primary eccentric hole on the primary machined bar by adopting a lathe to obtain a primary machined eccentric part with the primary eccentric hole;
installing a turning device of an eccentric part on a main shaft chuck of the lathe, and positioning the initial machining eccentric part in the eccentric hole of the clamp to realize positioning of the initial machining eccentric part;
processing an end face boss of the positioned primary processing eccentric part by using a cutter on a lathe to obtain a secondary processing eccentric part with the end face boss;
turning around the secondary machining eccentric part, and positioning the secondary machining eccentric part in the eccentric hole of the clamp after turning around to realize turning around positioning of the secondary machining eccentric part;
and finely boring the primary eccentric hole of the secondary machining eccentric part after turning around and positioning by using a cutter on a lathe, and machining to obtain the eccentric part.
Optionally, the cutter that is used with the cutter on the lathe to the location back the processing of eccentric parts terminal surface boss of preliminary working is used includes cutter body, main cutting edge, cutting edge strengthening support rib and dodges the groove, the one end of cutter body sets up dodge the groove, dodge the groove with terminal surface boss cooperation, dodge the groove and include tank bottom and annular cell wall, annular cell wall includes cutting part, reinforcing part and connecting portion, the outside extension form of cutting part the main cutting edge, the outside extension form of reinforcing part the cutting edge strengthening support rib.
The application has the beneficial effects that:
according to the application, the eccentricity of the eccentric hole of the clamp is equal to the eccentricity of the part eccentric hole of the eccentric part, when the eccentric part is installed in the eccentric hole of the clamp, the end face cover plate is installed on the end face of the clamp body in a matched manner, and the positioning boss on the end face cover plate is installed in the part eccentric hole of the eccentric part in a matched manner, so that the eccentric feature of the eccentric part to be machined is placed on the rotation center of the clamp body, namely the eccentric hole of the part to be machined is placed on the rotation center of the clamp body, and the part eccentric hole can be machined by only rotating the clamp body.
According to the turning device and the turning method for the eccentric part, provided by the embodiment of the application, the eccentric distance of the eccentric hole of the clamp is equal to the eccentric distance of the part eccentric hole of the eccentric part, so that the technical problems of difficult alignment and clamping and high machining difficulty of the eccentric part are solved, and the technical effects of rapidness and simplicity in alignment and clamping of the eccentric part and easiness in machining are realized.
Drawings
FIG. 1 is an exploded view of one embodiment of a turning apparatus of the present application;
FIG. 2 is a schematic view of the eccentric element of the present application;
FIG. 3 is a left side view of FIG. 2;
FIG. 4 is a schematic view of a structure of a clamp body according to the present application;
FIG. 5 is a schematic view of the structure of the split elastic jacket of the present application;
FIG. 6 is a schematic view of the structure of the second face of the end cover plate of the present application;
FIG. 7 is a schematic view of the structure of the first face of the end cover plate of the present application;
FIG. 8 is a schematic view of the positioning of a pre-machined eccentric part in the machining method of the present application;
FIG. 9 is a schematic view of the positioning of a secondary machined eccentric part in the machining method of the present application;
FIG. 10 is a schematic view of a tool used in the machining process of the present application for machining an end face boss;
FIG. 11 is a schematic view of the structure of a tool used in the machining process of the present application in working an end face boss;
reference numerals: the clamping device comprises a 1-clamp body, a 2-end face cover plate, a 3-connecting component, a 4-chuck clamping face, a 5-positioning face, a 6-clamp eccentric hole, a 7-eccentric part, an 8-part eccentric hole, a 9-open slot, a 10-first positioning boss, a 11-second positioning boss, a 12-part avoiding hole, a 13-open elastic jacket, a 14-through slot, a 15-break slot, a 16-second outer cylindrical surface, a 17-cutter body, a 18-main cutting edge, a 19-cutting edge reinforcing support rib, a 20-avoiding slot, a 21-end face boss, a 22-first cylinder and a 23-second cylinder.
The achievement of the objects, functional features and advantages of the present application will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present application are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
In the present application, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present application, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present application.
Referring to fig. 1-7, a first embodiment of the present application provides a turning device for eccentric parts, comprising a fixture body 1, an end cover plate 2 and a connecting component 3, wherein the fixture body 1 comprises a chuck clamping surface 4 for clamping a lathe spindle chuck, a positioning surface 5 for positioning the fixture body 1, and a fixture eccentric hole 6 for clamping the eccentric parts 7, the eccentricity of the fixture eccentric hole 6 is equal to the eccentricity of a part eccentric hole 8 of the eccentric parts 7, the end cover plate 2 is connected with the end surface of the fixture body 1 in a matched manner through the connecting component 3, the rotation center of the end cover plate 2 is coaxial with the rotation center of the fixture body 1, and a positioning boss matched with the part eccentric hole 8 is arranged on the rotation center of the end cover plate 2. The eccentric part 7 may refer to fig. 2 and 3, the perspective view may refer to fig. 1 and 3 for the left view of fig. 2, the eccentric part 7 illustrated in fig. 2 and 3 has three eccentric holes and eccentric bosses corresponding to the eccentric holes, that is, the existing three eccentric housing parts that are relatively common, and the three eccentric housing parts are used for example for processing, and of course, the eccentric part may also be an eccentric part with one eccentric hole, an eccentric part with two eccentric holes, or the like, and an eccentric part with multiple eccentric holes; the structure of the fixture body 1 is as shown in fig. 4, the fixture body 1 is provided with a fixture eccentric hole 6 for clamping an eccentric part 7, the eccentricity of the fixture eccentric hole 6 is equal to the eccentricity of a part eccentric hole 8 of the eccentric part 7, when the eccentric part 7 is installed in the fixture eccentric hole 6, the end face cover plate 2 is installed on the end face of the fixture body 1 in a matched manner, and a positioning boss on the end face cover plate 2 is installed in the part eccentric hole 8 of the eccentric part 7 in a matched manner, so that the eccentric feature of the machined eccentric part 7 is placed on the rotation center of the fixture body 1, namely, the part eccentric hole 8 of the machined eccentric part 7 is placed on the rotation center of the fixture body 1, specifically, referring to fig. 1, three part eccentric holes 8 are arranged on the eccentric part 7, when the eccentric part 7 is arranged in the fixture eccentric hole 6, the positioning boss is matched with one part eccentric hole 8, the outer circular axis of the eccentric part 7 coincides with the axis of the fixture eccentric hole 6, and because the eccentricity of the fixture eccentric hole 6 is equal to the eccentricity of the part eccentric hole 8 of the eccentric part 7, the axis of the part eccentric hole 8 is positioned on the rotation center of the fixture body 1, and the positioning boss is used for positioning the part eccentric hole 8, at the moment, one part eccentric hole 8 is fixed on the rotation center of the fixture body 1, at the moment, the part eccentric hole 8 can be processed by only rotating the fixture body 1, and the fixture is convenient and simple, and the traditional turning eccentric workpiece mainly has 4 clamping methods, namely: the three-jaw linkage chuck and gasket method, the four-jaw single-action chuck method, the front and back center offset method and the eccentric chuck turning and clamping method are utilized, but the operability is poor, the eccentric accuracy is difficult to guarantee, and the batch processing efficiency is low. By using the turning device for the eccentric part, disclosed by the application, the eccentric part 7 is directly installed in the fixture eccentric hole 6 without alignment and clamping of the eccentric part 7, and then the positioning installation can be completed by matching the positioning boss in the part eccentric hole 8, so that the machining difficulty is reduced, and the machining efficiency and the machining precision are improved.
As an alternative embodiment, the end cover plate 2 includes a first surface and a second surface, the positioning boss includes a first positioning boss 10 and a second positioning boss 11, the first positioning boss 10 is disposed on the first surface of the end cover plate 2, the second positioning boss 11 is disposed on the second surface of the end cover plate 2, and a part avoiding hole 12 matched with the end surface of the eccentric part 7 is further disposed on the second surface. The end cover plate 2 includes a first surface and a second surface, as shown in fig. 6 and 7, the first surface may be the front surface or the back surface of the end cover plate 2, when the first surface is the front surface of the end cover plate 2, the second surface is the back surface of the end cover plate 2, when the first surface is the back surface of the end cover plate 2, the second surface is the front surface of the end cover plate 2, that is, the second surface is opposite to the first surface, in this embodiment, as shown in fig. 7, the first surface is shown in fig. 6, the second surface is also shown in fig. 7 by the first positioning boss 10, as shown in fig. 7, the second positioning boss 11 is shown in fig. 6, the first positioning boss 10 and the second positioning boss 11 may be set to a size and a diameter opposite to the part avoiding hole 12 according to the difference of the part avoiding hole 12, by setting the positioning bosses on the first surface and the second surface of the end cover plate 2, and the eccentric part hole 8 of the eccentric part 7 may be positioned according to the situation, as shown in fig. 6 and 7 by setting the part avoiding hole 12.
The clamping device further comprises an opening elastic clamping sleeve 13, the inner side of the opening elastic clamping sleeve 13 is in clamping fit with the eccentric part 7, and the outer side of the opening elastic clamping sleeve 13 is in fit with the clamp eccentric hole 6. The function of the opening elastic jacket 13 is to realize the function of reducing, in order to realize the turning of the eccentric part 7 in the eccentric hole 6 of the clamp, when the eccentric part 7 has a plurality of sections of diameters, the opening elastic jacket 13 can clamp the eccentric part 7 so as to realize the clamping and fixing of the eccentric part 7 with the reducing.
As shown in fig. 5, the function of the open elastic jacket 13 is to fix eccentric parts 7 with different diameters, so as to stably install the eccentric parts 7 in the eccentric hole 6 of the clamp in a matched manner, and the open elastic jacket 13 is provided with at least one through groove 14 along the axial direction, and the diameter-changing function of the open elastic jacket 13 is realized through the arrangement of the through groove 14, so that the open elastic jacket 13 can be contracted or expanded.
The open elastic jacket 13 is provided with at least one break groove 15 along the axial direction, the break groove 15 comprises a groove side wall and a groove bottom, and an included angle between the side wall and the groove bottom is an acute angle or an obtuse angle. By providing the break groove 15, the "reducing" function of the split elastic jacket 13 is further realized, so that the split elastic jacket 13 can be contracted or expanded. The included angle between the side wall and the tank bottom is an acute angle or an obtuse angle, so that the stress between the side wall and the tank bottom is reduced, and the open elastic jacket 13 has a good elastic function and can keep good rigidity.
The number of through grooves 14 and the number of break grooves 15 are set according to specific strength and rigidity requirements, and in this embodiment, the through grooves 14 and the two break grooves 15 are equally spaced on the circumference of the open elastic jacket 13. The open elastic jacket 13 has better elastic function and can keep better jacket rigidity.
As shown in fig. 6 and 7, the end cover plate 2 may have a rectangular, circular or other shape, which functions to axially locate the eccentric element 7, and in this embodiment, the end cover plate 2 has a disc structure. The end face cover plate 2 is matched with the clamp body 1, so that the end face cover plate is beneficial to being installed on a machine tool, and the stability of the whole device is improved.
The specific structure of the fixture body 1 may be a rectangular body, a sphere, an ellipsoid or the like, in this embodiment, as shown in fig. 4, the fixture body 1 is a flange step bushing structure, the fixture body 1 includes an open slot 9, a first outer cylindrical surface, a second outer cylindrical surface 16 and a step surface, the open slot 9 communicates the fixture eccentric hole 6 with the outside of the fixture body 1, the first outer cylindrical surface forms the chuck clamping surface 4, and the step surface forms the positioning surface 5. The clamp body 1 is of a flange step bushing structure, is convenient to install on a machine tool, is beneficial to cutting and mating, and reduces resistance during cutting; the clamp body 1 is provided with the open slot 9, as shown in fig. 4, the open elastic jacket 13 and the eccentric part 7 are better matched with the eccentric hole 6 of the clamp, so that the eccentric parts 7 with different diameters can be matched, the matching is ensured to be more stable and firm.
The application also provides a turning method of the eccentric part, which comprises the following steps:
heat treating the raw material bar stock;
processing the raw material bar after heat treatment on a lathe to obtain a primary processed bar;
machining the primary eccentric hole on the primary machined bar by adopting a lathe to obtain a primary machined eccentric part with the primary eccentric hole;
installing a turning device of an eccentric part on a main shaft chuck of the lathe, and positioning the initial machining eccentric part in the eccentric hole of the clamp to realize positioning of the initial machining eccentric part;
processing an end face boss of the positioned primary processing eccentric part by using a cutter on a lathe to obtain a secondary processing eccentric part with the end face boss;
turning around the secondary machining eccentric part, and positioning the secondary machining eccentric part in the eccentric hole of the clamp after turning around to realize turning around positioning of the secondary machining eccentric part;
and finely boring the primary eccentric hole of the secondary machining eccentric part after turning around and positioning by using a cutter on a lathe, and machining to obtain the eccentric part.
The number of the eccentric holes 8 of the multi-eccentric part 7 can be 1, 2, 3, etc., for better explaining the processing method, specifically, the embodiment uses the multi-eccentric part to be processed as an example, that is, the processed eccentric part 7 is a multi-eccentric part, and the specific steps are to heat treat the raw materials;
processing a primary eccentric hole: machining the raw material bar stock on a lathe, wherein the raw material bar stock is machined to form a first cylinder 22 and a second cylinder 23, and the diameter of the first cylinder 22 is larger than that of the second cylinder 23; drilling a plurality of primary eccentric holes by adopting a lathe to obtain a primary machined eccentric part comprising a plurality of primary eccentric holes;
positioning the initial machining eccentric part: installing a turning device of an eccentric part on a lathe spindle chuck, installing the primary machining eccentric part in the fixture eccentric hole 6, and connecting the first positioning boss 10 with one primary eccentric hole in a matching way, wherein the first positioning boss 10 is close to one end of the second cylinder 23 of the primary machining eccentric part to realize positioning of the primary machining eccentric part;
machining an end face boss 21 of the initial machining eccentric part: machining an end face boss 21 of the initial machining eccentric part, which is close to one end face of the first cylinder 22, by using a cutter on a lathe, wherein the machined end face boss 21 corresponds to an initial eccentric hole matched with the first positioning boss 10;
obtaining a secondary machining eccentric part 7: according to the positioning of the initial machining eccentric part and the machining of the end face boss 21 of the initial machining eccentric part, machining the rest of the end face boss 21 of the initial machining eccentric part, which is close to the end face of the first cylinder 22, in sequence, so as to obtain a secondary machining eccentric part 7 with the end face boss 21;
positioning the secondary machining eccentric part 7: turning around the secondary machining eccentric part 7, enabling one end of the secondary machining eccentric part 7 with the end face boss 21 to correspond to the end face cover plate 2, enabling the second positioning boss 11 to be connected with one primary eccentric hole in a matched mode, and positioning the secondary machining eccentric part 7;
finish boring the primary eccentric hole of the secondary machining eccentric part 7: finely boring the primary eccentric hole of the end, close to the second cylinder 23, of the secondary machining eccentric part 7 by using a cutter on the lathe, wherein the primary eccentric hole is corresponding to the second positioning boss 11;
obtaining a multi-eccentric part 7: and positioning the secondary machining eccentric part 7 and finely boring the primary eccentric holes of the secondary machining eccentric part 7, and sequentially machining the rest primary eccentric holes to obtain the multi-eccentric part 7.
The turning method is a method for machining the multi-eccentric part 7, specifically, the three-eccentric shell part is used for example for machining, and of course, the eccentric part 7 can also be other eccentric parts 7 with a plurality of eccentric holes; referring to fig. 8 for positioning the primary machined eccentric part and referring to fig. 9 for positioning the secondary machined eccentric part 7, the turning method of the eccentric part 7 sequentially comprises the following steps: heat treating the raw material; processing a primary eccentric hole; positioning the initially machined eccentric part; machining an end face boss 21 of the initially machined eccentric part; obtaining a secondary machining eccentric part 7; positioning the secondary machining eccentric part 7; finely boring a primary eccentric hole of the secondary machining eccentric part 7; a multi-eccentric part 7 is obtained. The specific method for obtaining the secondary machining eccentric part 7 comprises the following steps: one of the primary eccentric holes of the three-eccentric housing part is positioned on a turning device of the eccentric part to process one end face boss 21, then the second primary eccentric hole of the three-eccentric housing part is positioned on the turning device of the eccentric part to process the second end face boss 21, and finally the third primary eccentric hole of the three-eccentric housing part is positioned on the turning device of the eccentric part to process the third end face boss 21, thereby obtaining the secondary processed eccentric part 7. The specific method for obtaining the multi-eccentric part 7 comprises the following steps: turning around the secondary machining eccentric part 7, enabling one end of the secondary machining eccentric part 7 with the end face boss 21 to correspond to the end face cover plate 2, enabling the second positioning boss 11 to be connected with a primary eccentric hole in a matched mode, and finely boring a primary eccentric hole of the secondary machining eccentric part 7: then positioning the second initial eccentric hole, wherein the positioning position is the same as that of the first initial eccentric hole, and then finely boring the second initial eccentric hole of the secondary machining eccentric part 7: and finally, positioning the third primary eccentric hole, wherein the positioning position is the same as that of the first primary eccentric hole and the second primary eccentric hole, and then finely boring the third primary eccentric hole of the secondary machining eccentric part 7, thereby obtaining a multi-eccentric part 7 and finishing the machining.
When the conventional universal end face grooving lathe tool is used for end face grooving, the end face grooving is affected by the rigidity of the tool and the difficult-to-machine characteristics of materials, the cutting consumption cannot be improved, and the machining efficiency is low. For this reason, in this implementation, the cutter that is used to the eccentric part processing terminal surface boss 21 of preliminary working includes cutter body 17, main cutting edge 18, cutting edge strengthening support rib 19 and dodges the groove 20, the one end of cutter body 17 sets up dodge the groove 20, dodge the groove 20 with terminal surface boss 21 cooperation, dodge the groove 20 and include tank bottom and annular cell wall, the annular cell wall includes cutting part, reinforcing part and connecting portion, the cutting part outwards extends form main cutting edge 18, the reinforcing part outwards extends form cutting edge strengthening support rib 19. The structure of the cutter is shown in fig. 10 and 11, the rigidity of the main cutting edge 18 of the cutter is effectively improved by the reinforcing support ribs, the processing working condition is shown in fig. 11, and the cutting amount of the cutter can be increased, so that the processing efficiency is improved.
The present application is not limited to the preferred embodiments, but is intended to cover all modifications of equivalent structures or equivalent processes, or direct or indirect application in other related arts, which are included in the scope of the present application.
Claims (6)
1. The turning device for the eccentric part is characterized by comprising a clamp body, an end face cover plate and a connecting assembly;
the fixture body comprises a chuck clamping surface for clamping a lathe spindle chuck, a positioning surface for positioning the fixture body and a fixture eccentric hole for clamping an eccentric part;
the eccentricity of the eccentric hole of the clamp is equal to the eccentricity of the eccentric hole of the eccentric part;
the end face cover plate is connected with the end face of the clamp body in a matched mode through the connecting assembly, the rotation center of the end face cover plate is coaxial with the rotation center of the clamp body, and a positioning boss matched with the eccentric hole of the part is arranged on the rotation center of the end face cover plate;
the end face cover plate comprises a first face and a second face, the positioning boss comprises a first positioning boss and a second positioning boss, the first positioning boss is arranged on the first face of the end face cover plate, the second positioning boss is arranged on the second face of the end face cover plate, and a part avoiding hole matched with the end face of the eccentric part is further formed in the second face;
the clamping device also comprises an opening elastic clamping sleeve, wherein the inner side of the opening elastic clamping sleeve is in clamping fit with the eccentric part, and the outer side of the opening elastic clamping sleeve is in fit with the eccentric hole of the clamp; the open elastic jacket is provided with at least one through groove along the axial direction; the elastic jacket is provided with at least one break groove along the axial direction, the break groove comprises a groove side wall and a groove bottom, and an included angle between the side wall and the groove bottom is an acute angle or an obtuse angle.
2. A turning device for eccentric parts as claimed in claim 1, comprising a through slot and two break slots, said through slot and two said break slots being equally spaced around the circumference of said split elastic jacket.
3. The turning device for eccentric parts as claimed in claim 1, wherein said end cover plate has a disc structure.
4. The turning device for eccentric parts according to claim 1, wherein the jig body is a flange step bushing structure, the jig body includes an open groove, a first outer cylindrical surface, a second outer cylindrical surface, and a step surface, the open groove communicates the jig eccentric hole with the outside of the jig body, the first outer cylindrical surface forms the chuck holding surface, and the step surface forms the positioning surface.
5. A turning method of an eccentric part, characterized in that the method of machining an eccentric part comprises:
heat treating the raw material bar stock;
processing the raw material bar after heat treatment on a lathe to obtain a primary processed bar;
machining the primary eccentric hole on the primary machined bar by adopting a lathe to obtain a primary machined eccentric part with the primary eccentric hole;
mounting the turning device of the eccentric part according to any one of claims 1 to 4 on a spindle chuck of the lathe, positioning the preliminary eccentric part in the fixture eccentric hole, and realizing the positioning of the preliminary eccentric part;
processing an end face boss of the positioned primary processing eccentric part by using a cutter on a lathe to obtain a secondary processing eccentric part with the end face boss;
turning around the secondary machining eccentric part, and positioning the secondary machining eccentric part in the eccentric hole of the clamp after turning around to realize turning around positioning of the secondary machining eccentric part;
and finely boring the primary eccentric hole of the secondary machining eccentric part after turning around and positioning by using a cutter on a lathe, and machining to obtain the eccentric part.
6. The turning method of eccentric parts according to claim 5, wherein the tool used by the tool on the turning machine for machining the end face boss of the positioned initially machined eccentric parts comprises a tool body, a main cutting edge, a cutting edge reinforcing support rib and an avoidance groove, one end of the tool body is provided with the avoidance groove, the avoidance groove is matched with the end face boss, the avoidance groove comprises a groove bottom and an annular groove wall, the annular groove wall comprises a cutting part, a reinforcing part and a connecting part, the main cutting edge is in an outward extending mode of the cutting part, and the cutting edge reinforcing support rib is in an outward extending mode of the reinforcing part.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210441312 | 2022-04-22 | ||
| CN2022104413120 | 2022-04-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115319511A CN115319511A (en) | 2022-11-11 |
| CN115319511B true CN115319511B (en) | 2023-12-08 |
Family
ID=83919047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210918765.8A Active CN115319511B (en) | 2022-04-22 | 2022-08-01 | Turning device and turning method for eccentric part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115319511B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19531104A1 (en) * | 1995-08-24 | 1997-02-27 | Wilhelm Blessing Spannzeuge Fa | Clamping chuck for turning lathe |
| JP2000190112A (en) * | 1998-12-25 | 2000-07-11 | Kyocera Corp | Eccentric collet |
| CN201744864U (en) * | 2009-09-17 | 2011-02-16 | 江西铜业股份有限公司 | Fixture for turning a plurality of boss cylinders on end surface of disc type part |
| CN202240613U (en) * | 2011-08-19 | 2012-05-30 | 天津赛瑞机器设备有限公司 | Turning frock for high-precision eccentric bushing |
| CN102490032A (en) * | 2011-11-25 | 2012-06-13 | 江苏万工科技集团有限公司 | Special fixture for processing eccentric ends of eccentric shafts |
| CN204194908U (en) * | 2014-11-14 | 2015-03-11 | 重庆康辉机械制造有限公司 | Dark annular groove cover cutter |
| CN204867435U (en) * | 2015-08-06 | 2015-12-16 | 黄河科技学院 | A lathe for eccentric part of turning |
| CN105234438A (en) * | 2015-09-18 | 2016-01-13 | 常州宝菱重工机械有限公司 | Tool for machining annular deep and narrow grooves in end faces |
| CN106853588A (en) * | 2015-12-08 | 2017-06-16 | 江西昌河航空工业有限公司 | A kind of multifunctional assembling clamp device for turnery processing |
| CN107253074A (en) * | 2017-07-31 | 2017-10-17 | 苏州工业职业技术学院 | A kind of turning attachment for processing circuit breaker base eccentric orfice |
| CN207013741U (en) * | 2017-07-18 | 2018-02-16 | 安徽合力股份有限公司 | A kind of frock for turning eccentric shaft parts |
| CN211101665U (en) * | 2019-10-31 | 2020-07-28 | 成都威诺精密机械有限公司 | Eccentric clamping sleeve tool for machining eccentric parts |
| CN114289749A (en) * | 2021-12-17 | 2022-04-08 | 山西平阳重工机械有限责任公司 | Clamp for machining eccentric excircle and clamping method |
-
2022
- 2022-08-01 CN CN202210918765.8A patent/CN115319511B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19531104A1 (en) * | 1995-08-24 | 1997-02-27 | Wilhelm Blessing Spannzeuge Fa | Clamping chuck for turning lathe |
| JP2000190112A (en) * | 1998-12-25 | 2000-07-11 | Kyocera Corp | Eccentric collet |
| CN201744864U (en) * | 2009-09-17 | 2011-02-16 | 江西铜业股份有限公司 | Fixture for turning a plurality of boss cylinders on end surface of disc type part |
| CN202240613U (en) * | 2011-08-19 | 2012-05-30 | 天津赛瑞机器设备有限公司 | Turning frock for high-precision eccentric bushing |
| CN102490032A (en) * | 2011-11-25 | 2012-06-13 | 江苏万工科技集团有限公司 | Special fixture for processing eccentric ends of eccentric shafts |
| CN204194908U (en) * | 2014-11-14 | 2015-03-11 | 重庆康辉机械制造有限公司 | Dark annular groove cover cutter |
| CN204867435U (en) * | 2015-08-06 | 2015-12-16 | 黄河科技学院 | A lathe for eccentric part of turning |
| CN105234438A (en) * | 2015-09-18 | 2016-01-13 | 常州宝菱重工机械有限公司 | Tool for machining annular deep and narrow grooves in end faces |
| CN106853588A (en) * | 2015-12-08 | 2017-06-16 | 江西昌河航空工业有限公司 | A kind of multifunctional assembling clamp device for turnery processing |
| CN207013741U (en) * | 2017-07-18 | 2018-02-16 | 安徽合力股份有限公司 | A kind of frock for turning eccentric shaft parts |
| CN107253074A (en) * | 2017-07-31 | 2017-10-17 | 苏州工业职业技术学院 | A kind of turning attachment for processing circuit breaker base eccentric orfice |
| CN211101665U (en) * | 2019-10-31 | 2020-07-28 | 成都威诺精密机械有限公司 | Eccentric clamping sleeve tool for machining eccentric parts |
| CN114289749A (en) * | 2021-12-17 | 2022-04-08 | 山西平阳重工机械有限责任公司 | Clamp for machining eccentric excircle and clamping method |
Non-Patent Citations (3)
| Title |
|---|
| 刘红军等.数控技术及编程应用.国防工业出版社 ,2016,第56页. * |
| 吴京霞.典型零件数控加工.北京航空航天大学出版社,2012,第71-73页. * |
| 普通车床加工偏心工件的实用夹具;李建文;;机械工程师(05);第94-95页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115319511A (en) | 2022-11-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112439906B (en) | Machining process of bearing ring in diesel engine | |
| CN115319511B (en) | Turning device and turning method for eccentric part | |
| US7491023B2 (en) | Tool retraction receiving element and adapter for positioning the same | |
| CN209062178U (en) | Coordinated type stepped hole internal expanding dabber clamp for numerically controlled lathe | |
| US20190351518A1 (en) | Tool holder or workpiece holder and set comprising machine tool and tool holder or workpiece holder | |
| CN213135844U (en) | Clamp for step shaft structure and machine tool | |
| CN114310339A (en) | Inner shaft fixing tool and inner shaft double-tip clamping fixing machining method | |
| CN217647932U (en) | Knife handle | |
| CN220278288U (en) | Clamping tool and lathe | |
| CN212470671U (en) | Lathe positioning structure | |
| CN113618099A (en) | Double-sided integrated machining clamp and machining method for pump joint | |
| CN216990219U (en) | Screw member turning anchor clamps | |
| CN220532990U (en) | Quick clamping device for multi-section eccentric rotary parts | |
| CN220943320U (en) | Quick assembly disassembly structure and drill bit | |
| CN216990422U (en) | Laser marking anchor clamps | |
| CN111570882A (en) | Self-centering clamping structure of large-diameter cutter | |
| CN219292819U (en) | Clamping tool for machining inclined holes of cylinder cover and drilling machine | |
| CN221389943U (en) | Workpiece machining fixing device | |
| JP2003103429A (en) | Cutting tool | |
| CN221474999U (en) | Locking shaft cylindric lock assembly fixture | |
| CN221434954U (en) | Floating main shaft | |
| CN110280819A (en) | A kind of processing method and positioning tool of monoblock pump | |
| CN212330806U (en) | Clamp for processing disc hub | |
| CN218518145U (en) | Side fixing type hilt | |
| CN216780985U (en) | Inner shaft fixing tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |