CN212350577U - Positioning tool for gear keyway machining - Google Patents
Positioning tool for gear keyway machining Download PDFInfo
- Publication number
- CN212350577U CN212350577U CN202021071299.7U CN202021071299U CN212350577U CN 212350577 U CN212350577 U CN 212350577U CN 202021071299 U CN202021071299 U CN 202021071299U CN 212350577 U CN212350577 U CN 212350577U
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- Prior art keywords
- thimble
- fixed
- gear
- positioning
- hole
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- Expired - Fee Related
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- 238000003754 machining Methods 0.000 title claims abstract description 12
- 238000011900 installation process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 8
- 238000005520 cutting process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
The utility model discloses a location frock of gear keyway processing relates to the relevant technical field of machining positioning fixture, including the frock body and positioner, its characterized in that: a fixed seat is fixed on the upper surface of the tool body, and a base is installed on the fixed seat; the base is provided with a through hole, and a lead screw penetrates through the through hole; one end of the screw rod is arranged on the turntable, and the other end of the screw rod is connected with a positioning device; the positioning device is arranged between the limiting plate and the tool body. The utility model can adapt to the processing of gear key grooves of different types when the auxiliary positioning is carried out on the gear for processing the key groove, the installation process is simple, the positioning precision is high, and the clamping is stable; the processing efficiency is improved.
Description
Technical Field
The utility model relates to a machining positioning fixture correlation technique field, concretely relates to location frock of gear keyway processing.
Background
The gear is used as a basic part in the mechanical field, and most gears are connected with a shaft through a key connection, so the machining quality of a key groove is important. The traditional gear keyway processing technology comprises broaching machine, slotting machine, wire cutting, electric spark machining and the like, and compared with the traditional gear keyway processing technology, when the broaching machine is used for processing the gear keyway, the production efficiency is higher, the processing range is wide, and the machine tool is simple in structure. In order to facilitate the processing of the gear key groove, the processing efficiency and the processing precision of the gear key groove are improved, and a positioning tool is usually adopted for auxiliary processing in the processing process.
In the process of broaching the gear key groove on the broaching machine, the axial direction and the radial direction of the gear are generally limited, and the type of the gear is considered. The influence of the type of a gear on a positioning tool is generally not considered in the process of positioning the gear by the conventional gear keyway processing and positioning device; the problems of inaccurate positioning, unstable clamping and the like generally occur, so that the problems of scrapping of a machined part or abrasion and breakage of a machining cutter and the like are caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problems in the prior art and provide a positioning tool for gear keyway processing, which can adapt to the processing of gear keyways of different types, and has simple installation process, high positioning precision and stable clamping; the processing efficiency is improved.
In order to solve the technical problem, the utility model discloses a following technical scheme:
a positioning tool for machining a gear keyway comprises a tool body and a positioning device, wherein a fixed seat is fixed on the upper surface of the tool body, and a base is installed on the fixed seat; the base is provided with a through hole, and a lead screw penetrates through the through hole; one end of the screw rod is arranged on the turntable, and the other end of the screw rod is connected with a positioning device; and the positioning device is arranged between the limiting plate and the tool body.
The positioning device comprises a thimble shell; the thimble shell is internally provided with a thimble, a fixed thimble and a fixed plate, the fixed thimble is arranged on two sides of the thimble, the thimble and the fixed thimble are both arranged on the fixed plate, and the fixed plate is arranged on the thimble shell; the clamping plate is arranged above the fixing plate and presses the thimble and fixes the thimble.
The thimble includes thimble inner core and activity thimble, and thimble inner core one end is arranged in the cavity of activity thimble, and the spring is installed to the periphery of thimble inner core, and the fixed plate is withstood to the spring.
Preferably, the thimble shell is provided with a connector, and the connector is connected with the screw rod.
Preferably, the tool body is provided with an annular bulge, the annular bulge is internally provided with a through hole, and the upper part of the through hole is provided with a rectangular groove.
The utility model discloses owing to adopted above-mentioned technical scheme, following beneficial effect has: the utility model discloses at the in-process of auxiliary gear keyway processing location, can adapt to the gear keyway processing of different grade type, the installation is simple, and positioning accuracy is high, and the centre gripping is stable, has improved machining efficiency.
Drawings
The accompanying drawings are included to provide a preferred understanding of the present invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural diagram of the device of the present invention;
fig. 2 is a sectional view of the present invention;
FIG. 3 is a schematic structural view of the positioning device of the present invention;
FIG. 4 is a schematic view of the structure of the movable thimble of the present invention;
fig. 5 is a schematic view of the straight gear processing structure of the present invention;
fig. 6 is the bevel gear processing structure of the present invention.
Reference numbers in the figures: the tool comprises a tool body 100, a lead screw 101, a turntable 102, a base 103, a limiting plate 104, an annular protrusion 105, a fixed seat 106, a positioning device 200, a connecting body 201, a clamping plate 202, a fixed plate 203, a spring 205, an ejector pin shell 206, an ejector pin 207, an ejector pin inner core 2071, a movable ejector pin 2072, a fixed ejector pin 208, a spur gear workpiece 300 and a bevel gear workpiece 301.
Detailed Description
The following describes preferred embodiments of the present invention in detail with reference to the accompanying drawings.
As shown in the figures, the positioning tool for gear keyway processing of the present invention comprises a tool body 100 and a positioning device 200, wherein a fixing seat 106 is fixed on the upper surface of the tool body 100, and a base 103 is installed on the fixing seat 106; the base 103 is provided with a through hole, and a lead screw 101 penetrates through the through hole; one end of a screw 101 is arranged on the turntable 102, and the other end of the screw 101 is connected with a positioning device 200; the positioning device 200 is arranged between the limiting plate 104 and the tool body 100;
the thimble 207 comprises a thimble inner core 2071 and a movable thimble 2072, one end of the thimble inner core 2071 is arranged in the cavity of the movable thimble 2072, a spring 205 is arranged on the periphery of the thimble inner core 2071, and the spring 205 props against the fixing plate 203.
The thimble shell 206 is provided with a connecting body 201, and the connecting body 201 is connected with the screw 101.
The tool body 100 is provided with an annular bulge 105, a through hole is formed in the annular bulge 105, and a rectangular groove is formed in the upper portion of the through hole.
The utility model discloses a working method:
firstly, the turntable 102 is rotated to drive the lead screw 101 to move upwards, and the lead screw 101 drives the positioning device 200 to move upwards at the same time. After the positioning device 200 moves upward by a suitable distance, the spur gear workpiece 300 is placed on the annular protrusion 105 and the position is adjusted. The turntable 102 is rotated reversely again to drive the positioning device 200 to move downward, so that the fixed ejector pins 208 on the positioning device 200 contact and press the spur gear workpiece 300. When the fixed ejector pins 208 are pressed against the workpiece 300, the movable ejector pins 2072 on the positioning device 200 are pressed down along with the tooth shape of the workpiece 300 by the elastic force of the springs 205, and the springs 205 are arranged on the ejector pins 207, so that all the movable ejector pins 2072 are ensured to be in contact with the workpiece 300. On this basis, since the number of the movable thimbles 2072 is large, the spur gear workpiece 300 can be prevented from being displaced in the circumferential direction of the annular protrusion 105.
If the workpiece to be machined is the bevel gear workpiece 301, when the fixed ejector pins 208 are in pressing contact with the bevel gear workpiece 301, the movable ejector pins 2072 on the positioning device 200 change the pressing distance along with the shape of the bevel gear workpiece 301, and because the ejector pins 207 are provided with the springs 205, all the movable ejector pins 2072 are ensured to be in contact with the bevel gear workpiece 301, so that the bevel gear workpiece 301 is not easy to displace in the axial direction of the annular protrusion 105 in the machining process; similarly, in the process of mounting the bevel gear workpiece 301, the end face with the larger diameter is attached to the surface of the tool body 100 for mounting, so that the bevel gear workpiece 301 is prevented from axial displacement.
In the process of processing the gear keyway, the broach passes through the through hole in the annular bulge 105 and is arranged on the broaching machine; and aligning the central line of the broach with the central line of the rectangular groove arranged at the upper part of the through hole, or directly performing linear cutting and processing for forming.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The utility model provides a location frock of gear keyway processing, includes the frock body (100) and positioner (200), its characterized in that: a fixed seat (106) is fixed on the upper surface of the tool body (100), and a base (103) is installed on the fixed seat (106); a through hole is formed in the base (103), and a lead screw (101) penetrates through the through hole; one end of the screw rod (101) is installed on the turntable (102), and the other end of the screw rod (101) is connected with a positioning device (200); the positioning device (200) is arranged between the limiting plate (104) and the tool body (100);
the positioning device (200) comprises a thimble housing (206); the thimble shell (206) is internally provided with a thimble (207), a fixed thimble (208) and a fixed plate (203), the fixed thimble (208) is arranged at two sides of the thimble (207), the thimble (207) and the fixed thimble (208) are both arranged on the fixed plate (203), and the fixed plate (203) is arranged on the thimble shell (206); the clamping plate (202) is arranged above the fixing plate and presses the thimble (207) and the fixing thimble (208);
the thimble (207) comprises a thimble inner core (2071) and a movable thimble (2072), one end of the thimble inner core (2071) is arranged in the cavity of the movable thimble (2072), a spring (205) is installed on the periphery of the thimble inner core (2071), and the spring (205) abuts against the fixing plate (203).
2. The positioning tool for gear keyway machining according to claim 1, characterized in that: the thimble shell (206) is provided with a connecting body (201), and the connecting body (201) is connected with the lead screw (101).
3. The positioning tool for gear keyway machining according to claim 1, characterized in that: the tool body (100) is provided with an annular bulge (105), a through hole is formed in the annular bulge (105), and a rectangular groove is formed in the upper portion of the through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021071299.7U CN212350577U (en) | 2020-06-11 | 2020-06-11 | Positioning tool for gear keyway machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021071299.7U CN212350577U (en) | 2020-06-11 | 2020-06-11 | Positioning tool for gear keyway machining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212350577U true CN212350577U (en) | 2021-01-15 |
Family
ID=74153766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021071299.7U Expired - Fee Related CN212350577U (en) | 2020-06-11 | 2020-06-11 | Positioning tool for gear keyway machining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212350577U (en) |
-
2020
- 2020-06-11 CN CN202021071299.7U patent/CN212350577U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210115 |