CN210024568U - Horizontal lathe eccentric hole processing tool - Google Patents
Horizontal lathe eccentric hole processing tool Download PDFInfo
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- CN210024568U CN210024568U CN201920451144.7U CN201920451144U CN210024568U CN 210024568 U CN210024568 U CN 210024568U CN 201920451144 U CN201920451144 U CN 201920451144U CN 210024568 U CN210024568 U CN 210024568U
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Abstract
The utility model relates to a horizontal lathe eccentric hole processing tool, which comprises two sets of center frame supporting sleeves, wherein each center frame supporting sleeve comprises an eccentric disc, and the side part of each eccentric disc is provided with a fastening threaded hole and an eccentric disc circumference positioning hole; the workpiece to be processed is an eccentric sleeve, a pair of eccentric sleeve threaded holes and an eccentric sleeve positioning hole are formed in the eccentric sleeve, and an eccentric disc circumferential positioning pin is inserted into the eccentric disc circumferential positioning hole and the eccentric sleeve positioning hole for positioning; fastening bolts are screwed into the fastening threaded holes and the eccentric sleeve threaded holes to be fastened; one eccentric disc is integrally clamped on a lathe, and the other eccentric disc is clamped when an eccentric inner hole of an eccentric sleeve workpiece is subjected to turning processing; the hole depth/hole diameter of the eccentric hole of the workpiece to be processed is more than 10.
Description
Technical Field
The utility model relates to an eccentric orfice processing frock particularly, is a horizontal lathe processing eccentric orfice frock and manufacturing method thereof.
Background
The eccentric workpiece is a workpiece with the axes of the excircle and the excircle of the part or the excircle and the inner hole parallel but not coincident and offset for a certain distance. The distance between these two parallel axes is called eccentricity. The parts with eccentric excircle and excircle are called eccentric shaft or eccentric disc; the part with the eccentric excircle and the inner hole is called an eccentric sleeve. In mechanical transmission, the conversion of rotary motion into reciprocating linear motion or the conversion of reciprocating linear motion into rotary motion is generally accomplished by using eccentric parts. Such as a lubrication pump driven by an eccentric workpiece for a lathe headstock, a crankshaft in an automotive engine, etc.
The eccentric shaft and the eccentric sleeve are generally machined on a lathe, and the machining principle of the eccentric shaft and the eccentric sleeve is basically the same. Mainly takes measures in the aspect of clamping, namely, the axis of an eccentric part needing to be processed is aligned to be coincident with the rotation axis of a lathe spindle. For a workpiece with a large hole depth and a large hole diameter, the inner hole needs to be turned around for processing, and the workpiece is difficult to fix and process.
Generally, according to the eccentric work piece of different grade type, the processing method also is different, the utility model discloses mainly relate to the frock design and the use of processing eccentric cover hole.
SUMMERY OF THE UTILITY MODEL
The utility model aims at optimizing design is carried out to the frock of the eccentric bushing work piece of taking the eccentric orfice, adopts two positions to fix on a pair of eccentric disc and the work piece, has solved the processing man-hour that turns around, and the big problem of the processing degree of difficulty of the eccentric orfice of big depth-diameter ratio.
The utility model adopts the following technical proposal:
a horizontal lathe tool for machining eccentric holes comprises two sets of center frame supporting sleeves, wherein each center frame supporting sleeve comprises an eccentric disc 9, and a fastening threaded hole 4 and an eccentric disc circumferential positioning hole 3 are formed in the side part of each eccentric disc; the workpiece to be processed is an eccentric sleeve, a pair of eccentric sleeve threaded holes 1 and 2 and an eccentric sleeve positioning hole are formed in the eccentric sleeve, and an eccentric disc circumferential positioning pin 9 is inserted into the eccentric disc circumferential positioning hole 3 and the eccentric sleeve positioning hole for positioning; fastening bolts are screwed into the fastening threaded holes 4 and the eccentric sleeve threaded holes 1 and 2 to be fastened; one eccentric disc is integrally clamped on a lathe, and the other eccentric disc is clamped when an eccentric inner hole of an eccentric sleeve workpiece is subjected to turning processing; the hole depth/hole diameter of the eccentric hole of the workpiece to be processed is more than 10.
Further, the eccentric disc circumferential positioning pin 9 has a section of fastening thread.
Furthermore, the lateral part of the eccentric disc 9 is also provided with a balancing weight fastening hole 5, and a balancing weight 7 is fixed on two sides of the eccentric disc 9 through a balancing weight fastening nut 6.
Furthermore, the circumferential positioning holes 3 of the eccentric disc are arranged in a 45-degree direction.
The manufacturing method of the horizontal lathe eccentric hole machining tool comprises the following steps:
s1, manufacturing an eccentric disc: the material selects 45 steel heat treatment HBW197-235, an inner hole is matched with the excircle of a workpiece according to H7 tolerance, 4 cross fastening threaded holes 4 for adjusting and fastening are arranged on the excircle, and an eccentric disc circumference positioning hole 3 is arranged in the excircle at 45-degree direction for positioning the circumference angle of the eccentric disc; the end surface of the eccentric disc is provided with 3 fastening holes 5 of each balancing weight;
s2, designing and manufacturing a circumferential positioning pin of the eccentric disc: designing an eccentric disc circumference positioning pin 9 by utilizing the original fabrication hole of the workpiece or the specially arranged eccentric sleeve positioning hole;
s3, designing a balancing weight: designing a balancing weight according to a machined workpiece, and fastening the balancing weight on an eccentric disc through three balancing weight fastening holes 5 to ensure dynamic balance of the workpiece;
s4, installation: firstly, mounting an eccentric disc on a workpiece, then integrally clamping the workpiece and the eccentric disc on a lathe, and arranging an eccentric disc at the side parts of two ends of the workpiece respectively;
and S5, turning around the eccentric inner hole of the workpiece.
The beneficial effects of the utility model reside in that:
1) the eccentric discs are fixed with the two parts on the workpiece, so that the problem that the processing difficulty of the eccentric hole with large depth-diameter ratio is large during turning around processing is solved.
2) Low manufacturing cost and repeated use.
3) The operation is convenient.
4) The processing quality is more reliable.
Drawings
Fig. 1 is a schematic view of a workpiece to be machined with eccentric holes.
Fig. 2 is a schematic view of an eccentric disc.
FIG. 3 is a schematic view of the structure of the eccentric disc circumferential positioning pin.
FIG. 4 is a schematic view of the eccentric disc and the counterweight block after being fixed.
FIG. 5 is a schematic view of the eccentric disc positioned and fixed with the workpiece.
Fig. 6 is a schematic view of the tool mounted on a horizontal lathe together with a workpiece.
Fig. 7 is another schematic view of the tooling mounted on a horizontal lathe with a workpiece.
In the figure, 1, an eccentric sleeve threaded hole (left side), 2, an eccentric sleeve threaded hole (right side), 3, an eccentric disc circumferential positioning hole, 4, a fastening threaded hole, 5, a balancing weight fastening hole, 6, a balancing weight fastening nut, 7, a balancing weight, 9, an eccentric disc circumferential positioning pin, 10, a lathe spindle box, 11, a workpiece eccentric disc machining tool, 12, a center frame and 13, a cutter rod are arranged.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1-7, the horizontal lathe eccentric hole processing tool comprises two sets of center frame support sleeves, wherein each center frame support sleeve comprises an eccentric disc 9, and a fastening threaded hole 4 and an eccentric disc circumferential positioning hole 3 are formed in the side part of each eccentric disc; the workpiece to be processed is an eccentric sleeve, a pair of eccentric sleeve threaded holes 1 and 2 and an eccentric sleeve positioning hole are formed in the eccentric sleeve, and an eccentric disc circumferential positioning pin 9 is inserted into the eccentric disc circumferential positioning hole 3 and the eccentric sleeve positioning hole for positioning; fastening bolts are screwed into the fastening threaded holes 4 and the eccentric sleeve threaded holes 1 and 2 to be fastened; one eccentric disc is integrally clamped on a lathe, and the other eccentric disc is clamped when an eccentric inner hole of an eccentric sleeve workpiece is subjected to turning processing; the hole depth/hole diameter of the eccentric hole of the workpiece to be processed is more than 10.
In this embodiment, the eccentric disc circumferential positioning pin 9 has a length of fastening thread, see fig. 3.
In this embodiment, referring to fig. 2-4, the side of the eccentric disc 9 is further provided with a fastening hole 5 for a weight block, and a weight block 7 is fixed on both sides of the eccentric disc 9 by a weight block fastening nut 6.
In this embodiment, the positioning holes 3 are arranged at 45 ° on the circumference of the eccentric disc.
The manufacturing and the use of the whole eccentric disc center frame support sleeve comprise the following steps:
step 1: manufacturing an eccentric disc: the material selects 45 steel heat treatment HBW197-235, an inner hole is matched with the excircle of a workpiece according to H7 tolerance, 4 cross threaded holes in the excircle play a role in adjusting and fastening, and threaded holes in the 45-degree direction of the excircle play a role in positioning the circumferential angle of the eccentric disc. Considering the problem of dynamic balance of workpieces, 3 phi 27 counterweight fastening holes are designed in the end face of the eccentric disc. See fig. 2-4.
Step 2: eccentric disc circumference locating pin: an eccentric disc circumferential positioning pin is designed by utilizing the original hole of the workpiece in combination with a workpiece drawing, and the eccentric disc circumferential positioning pin is shown in figure 3.
And step 3: designing a balancing weight: the weight is calculated according to a drawing of a processed workpiece to design a balancing weight, and the balancing weight is fastened on an eccentric disc through 3 phi 27 holes on the end face to ensure the dynamic balance of the workpiece, which is shown in figure 4.
And 4, step 4: installation: the eccentric disc is installed on a workpiece, then the workpiece and the eccentric disc are integrally clamped on a lathe, the eccentric inner hole of the workpiece is processed in a turning way, so that two ends of the workpiece are respectively provided with the eccentric disc, and the final effect is as shown in figures 5-7.
The utility model adopts a pair of eccentric discs and two parts on the workpiece to fix, thus solving the problem that the processing difficulty of the eccentric hole with large depth-diameter ratio is large when the processing is turned around; the manufacturing cost is low, and the product can be repeatedly used; the operation is convenient; the processing quality is more reliable.
The above are preferred embodiments of the present invention, and those skilled in the art can make various changes or improvements on the above embodiments without departing from the general concept of the present invention, and these changes or improvements should fall within the scope of the present invention.
Claims (4)
1. The utility model provides a horizontal lathe processing eccentric orfice frock which characterized in that:
the eccentric disc fixing device comprises two sets of center frame supporting sleeves, wherein each center frame supporting sleeve comprises an eccentric disc, and a fastening threaded hole (4) and an eccentric disc circumferential positioning hole (3) are formed in the side part of each eccentric disc;
the workpiece to be processed is an eccentric sleeve, a pair of eccentric sleeve threaded holes (1, 2) and an eccentric sleeve positioning hole are formed in the eccentric sleeve, and an eccentric disc circumferential positioning pin (9) is inserted into the eccentric disc circumferential positioning hole (3) and the eccentric sleeve positioning hole for positioning; the fastening bolt is screwed into the fastening threaded hole (4) and the eccentric sleeve threaded holes (1 and 2) to be fastened;
one eccentric disc is integrally clamped on a lathe, and the other eccentric disc is clamped when an eccentric inner hole of an eccentric sleeve workpiece is subjected to turning processing;
the hole depth/hole diameter of the eccentric hole of the workpiece to be processed is more than 10.
2. The horizontal lathe eccentric hole processing tool according to claim 1, characterized in that: the eccentric disc circumference positioning pin (9) is provided with a section of fastening thread.
3. The horizontal lathe eccentric hole processing tool according to claim 1, characterized in that: the lateral part of the eccentric disc is also provided with a balancing weight fastening hole (5), and balancing weights (7) are fixed on the two sides of the eccentric disc through balancing weight fastening nuts (6).
4. The horizontal lathe eccentric hole processing tool according to claim 1, characterized in that: the circumferential positioning holes (3) of the eccentric disc are arranged in a 45-degree direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920451144.7U CN210024568U (en) | 2019-04-03 | 2019-04-03 | Horizontal lathe eccentric hole processing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920451144.7U CN210024568U (en) | 2019-04-03 | 2019-04-03 | Horizontal lathe eccentric hole processing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210024568U true CN210024568U (en) | 2020-02-07 |
Family
ID=69357918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920451144.7U Active CN210024568U (en) | 2019-04-03 | 2019-04-03 | Horizontal lathe eccentric hole processing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210024568U (en) |
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2019
- 2019-04-03 CN CN201920451144.7U patent/CN210024568U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20221017 Granted publication date: 20200207 |
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| PP01 | Preservation of patent right |