CN219900530U - Gear grinding mandrel for disk gear - Google Patents
Gear grinding mandrel for disk gear Download PDFInfo
- Publication number
- CN219900530U CN219900530U CN202321674356.4U CN202321674356U CN219900530U CN 219900530 U CN219900530 U CN 219900530U CN 202321674356 U CN202321674356 U CN 202321674356U CN 219900530 U CN219900530 U CN 219900530U
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- cylindrical section
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- axis body
- gear
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- 238000000034 method Methods 0.000 claims abstract description 17
- 238000012545 processing Methods 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 5
- 238000013461 design Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000003754 machining Methods 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 4
- 206010006514 bruxism Diseases 0.000 abstract description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Gears, Cams (AREA)
Abstract
A disk gear tooth grinding mandrel belongs to the technical field of gear machining. The utility model solves the problems that the existing center mandrel for grinding the teeth of the disk gear has no interchangeability and is difficult to ensure the machining precision of the grinding teeth. The upper end coaxial processing of axis body has the location blind hole, and the coaxial cartridge of lower tip of round pin axle is in the location blind hole, and is spacing through the cylindric lock of radial arrangement, second nut screw thread suit is spacing at the upper end of axis body and through holding screw, waits to process the epaxial dress of dish gear with axle and its wheel hub bottom and set up the top at the axis body, wait to process the lower terminal surface of dish gear and set up the top at the second nut, and the clamp plate slip cap dress is epaxial and is pressed and is established at waiting to process a dish gear top from top to bottom. The disk gear tooth grinding mandrel has the advantages of simple structure, reasonable design, convenient maintenance and manufacture, low manufacturing cost on the premise of ensuring the precision, multiple purposes, good interchangeability, good connection stability, convenient assembly and disassembly and the like.
Description
Technical Field
The utility model relates to a disk gear tooth grinding mandrel, and belongs to the technical field of gear machining.
Background
The mandrel is a necessary clamp in gear grinding processing and inspection, and the positioning accuracy directly determines the gear grinding processing accuracy level. The conventional common center mandrel is used as a tool, so that obvious defects exist when the gear with the weak rigidity disc is machined by grinding teeth, the common center mandrel is used for one shaft, and the common center mandrel has no interchangeability, so that the manufacturing cost of a single piece can be increased. In addition, most of disc gears are parts with weak rigidity, vibration generated in the gear grinding process directly causes the reduction of the gear machining precision, and the common center mandrel does not have an auxiliary supporting function, so that the gear grinding machining precision is difficult to ensure. Although some existing hydraulic expansion mandrels on the market can guarantee the precision requirement, the hydraulic expansion mandrels have complex structures, high cost and difficult maintenance and manufacture.
Disclosure of Invention
The utility model aims to solve the technical problems and further provides a disk gear tooth grinding mandrel.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
the utility model provides a dish gear grinding dabber, includes axis body, round pin axle, clamp plate, first nut and second nut, and wherein the coaxial processing of upper end of axis body has the location blind hole, and the coaxial cartridge of lower tip of round pin axle is in the location blind hole, and it is spacing through the cylindric lock of radial arrangement, second nut thread bush is at the upper end of axis body and through holding screw spacing, wait to process the epaxial dress of dish gear with axle and its wheel hub bottom and set up the top at the axis body, wait to process the lower terminal surface of dish gear and set up the top at the second nut, and wait to be provided with the sealing washer between dish gear and the second nut, the clamp plate upper and lower slip cap dress is epaxial and the pressure is established at waiting to process a dish gear top at the round pin, the top of round pin axle and the bottom of axis body have been seted up respectively to top hole.
Further, the shaft body comprises a first cylindrical section and a second cylindrical section which are coaxially arranged from top to bottom in sequence, wherein the diameter of the first cylindrical section is larger than that of the second cylindrical section, and the outer circular surface of the first cylindrical section is provided with threads.
Further, the upper portion of the second cylindrical section is provided with a first limiting through hole in a radial machining mode, and the first limiting through hole is communicated with the positioning blind hole.
Further, the pin shaft comprises a third cylindrical section, a fourth cylindrical section and a fifth cylindrical section which are coaxially arranged from top to bottom in sequence, wherein an external thread is processed in the middle of the third cylindrical section, the diameter of the fourth cylindrical section is larger than that of the third cylindrical section and the fifth cylindrical section, and a second limiting through hole is formed in the fifth cylindrical section along the radial direction of the fifth cylindrical section.
Further, the diameter of the fourth cylindrical section is smaller than the inner diameter of the hub of the disc gear to be processed.
Further, a washer is disposed between the first nut and the pressure plate.
Further, a stepped through hole is formed in the second nut along the axial direction of the second nut, wherein a large-diameter hole in the stepped through hole is a unthreaded hole and is arranged at the upper part, and a small-diameter hole in the stepped through hole is a threaded hole and is arranged at the lower part.
Further, at least two limit threaded holes are uniformly formed in the lower portion of the second nut along the circumferential direction of the second nut, and each limit threaded hole is communicated with the small-diameter hole.
Further, the first nut is a hexagonal nut.
Further, the second nut is a round nut.
Compared with the prior art, the utility model has the following effects:
through changing round pin axle and/or second nut, can realize a multi-purpose, and compare with prior art, effectively improved connection stability, interchangeability and it is more convenient to install and remove.
In addition, through the structure of embedded elasticity sealing washer of second nut as auxiliary stay, utilize the buffering of sealing washer to inhale the function of shaking, effectively reduce the vibration that produces in the gear grinding processing, effectively improved and had the same precision of gear grinding of weak rigidity dish gear.
The disk gear grinding mandrel has the advantages of simple structure, reasonable design, convenient maintenance and manufacture, low manufacturing cost on the premise of ensuring the precision, multiple purposes, good interchangeability, good connection stability, convenient assembly and disassembly and the like, and is an advanced clamp for realizing high-precision clamping in the gear grinding processing process.
Drawings
FIG. 1 is a schematic main sectional view of a disk gear tooth grinding spindle of the present utility model;
FIG. 2 is a schematic view of a main section of a shaft body;
fig. 3 is a schematic front view of a pin;
FIG. 4 is a schematic view in main section of a second nut;
fig. 5 is a schematic side view of the second nut.
In the figure: 100. a disc gear to be processed; 1. a shaft body; 11. positioning the blind hole; 12. a first cylindrical section; 13. a second cylindrical section; 14. the first limiting through hole; 2. a pin shaft; 21. a third cylindrical section; 22. a fourth cylindrical section; 23. a fifth cylindrical section; 24. the second limiting through hole; 3. a pressing plate; 4. a first nut; 5. a second nut; 51. an annular groove; 52. a stepped through hole; 53. a limit threaded hole; 6. a cylindrical pin; 7. a set screw; 8. a seal ring; 9. a center hole; 10. and a gasket.
Detailed Description
The first embodiment is as follows: the present embodiments will be described in detail and with reference to fig. 1 to 5, and it is apparent that the described embodiments are only some embodiments, but not all embodiments of the present utility model, and all other embodiments obtained by a person skilled in the art without making any inventive effort are within the scope of the present utility model.
It should be noted that, the descriptions of the directions of the present utility model in terms of "front", "rear", "left", "right", "inner", "outer", "left", "right", "upper", "lower", "top", "bottom", etc. are defined based on the relationship of orientations or positions shown in the drawings, only for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the structures described must be constructed and operated in a specific orientation, and therefore, the present utility model should not be construed as being limited thereto. In the description of the present utility model, the meaning of "plurality" is two or more unless specifically defined otherwise.
In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The utility model provides a dish gear grinding dabber, includes axis body 1, round pin axle 2, clamp plate 3, first nut 4 and second nut 5, wherein the coaxial processing of upper end of axis body 1 has location blind hole 11, the coaxial cartridge of lower tip of round pin axle 2 in location blind hole 11, and it is spacing through radially arranged cylindric lock 6, second nut 5 thread bush is at the upper end of axis body 1 and spacing through holding screw 7, wait to process dish gear 100 coaxial suit on round pin axle 2 and its wheel hub bottom set up the top at axis body 1, wait to process the lower terminal surface of dish gear 100 and set up the top at second nut 5, and wait to process to be provided with sealing washer 8 between dish gear 100 and the second nut 5, clamp plate 3 upper and lower slip cap dress is on round pin axle 2 and press and is established at waiting to process dish gear 100 top, first nut 4 thread bush is on round pin axle 2 of clamp plate 3 top, top of round pin axle 2 and the bottom of axis body 1 have seted up top hole 9 respectively.
The sealing ring 8 is coaxially and fixedly arranged at the top end of the second nut 5, an annular groove 51 is coaxially processed at the top end of the second nut 5, and the sealing ring 8 is placed in the groove and is fixedly connected with the second nut 5 preferably in a cementing manner.
The axial limit of the pressing plate 3 is realized by the first nut 4,
when the hub aperture of the disc gear 100 to be processed is changed, the gear grinding processing of other types of disc gears can be realized only by replacing the pin shaft 2 matched with the hub aperture;
when the hub aperture of the disc gear 100 to be processed is unchanged, but the web structure is changed, the second nut 5 matched with the hub aperture is replaced, so that the gear grinding processing of other types of disc gears can be realized.
Through changing round pin axle 2 and/or second nut 5, can realize a multi-purpose, and compared with prior art, effectively improved connection stability, interchangeability and it is more convenient to install and remove.
In addition, through the structure of the embedded elastic sealing ring 8 of second nut 5 as auxiliary stay, utilize the buffering of sealing ring 8 to inhale the function of shaking, effectively reduce the vibration that produces in the gear grinding processing, effectively promote with weak rigidity dish gear grinding precision.
The disk gear grinding mandrel has the advantages of simple structure, reasonable design, convenient maintenance and manufacture, low manufacturing cost on the premise of ensuring the precision, multiple purposes, good interchangeability, good connection stability, convenient assembly and disassembly and the like, and is an advanced clamp for realizing high-precision clamping in the gear grinding processing process.
The shaft body 1 comprises a first cylindrical section 12 and a second cylindrical section 13 which are coaxially arranged in sequence from top to bottom, wherein the diameter of the first cylindrical section 12 is larger than that of the second cylindrical section 13, and the outer circular surface of the first cylindrical section 12 is provided with threads. This design facilitates the adjustment of the axial position of the second nut 5 on the shaft body 1.
The upper part of the second cylindrical section 13 is provided with a first limiting through hole 14 along the radial direction thereof, and the first limiting through hole 14 is communicated with the positioning blind hole 11. Through the design, the cylindrical pin 6 is inserted on the pin shaft 2 through the first limiting through hole 14, so that circumferential positioning of the pin shaft 2 is realized.
The pin shaft 2 comprises a third cylindrical section 21, a fourth cylindrical section 22 and a fifth cylindrical section 23 which are coaxially arranged from top to bottom in sequence, wherein an external thread is processed in the middle of the third cylindrical section 21, the diameter of the fourth cylindrical section 22 is larger than that of the third cylindrical section 21 and the fifth cylindrical section 23, and a second limiting through hole 24 is formed in the fifth cylindrical section 23 along the radial direction of the fifth cylindrical section. Through the design, through setting up the diameter of fourth cylindrical section 22 to be greater than third cylindrical section 21 and fifth cylindrical section 23, after inserting round pin axle 2 on axis body 1, the lower terminal surface of fourth cylindrical section 22 is set up on the top of axis body 1, is convenient for through realizing the axial spacing to round pin axle 2 to fourth cylindrical section 22. The middle part of the third cylindrical section 21 is externally threaded to achieve a threaded connection between the first nut 4 and the pin shaft 2. The disc gear 100 to be processed is sleeved on the lower part of the third cylindrical section 21. The cylindrical pins 6 are sequentially inserted into the first limiting through holes 14 and the second limiting through holes 24, so that circumferential positioning of the pin shaft 2 is achieved.
The diameter of the fourth cylindrical section 22 is smaller than the hub inner diameter of the disc gear 100 to be machined. So designed, it is ensured that the disc gear 100 to be processed can be smoothly sleeved on the pin shaft 2.
A washer 10 is arranged between the first nut 4 and the pressing plate 3. So designed that, in this way,
the second nut 5 is provided with a stepped through hole 52 along the axial direction thereof, wherein a large diameter hole in the stepped through hole 52 is a unthreaded hole and is arranged at the upper part, and a small diameter hole in the stepped through hole 52 is a threaded hole and is arranged at the lower part. By the design, the small-diameter hole section is in threaded connection with the upper end part of the shaft body 1, the aperture of the large-diameter hole section is larger than the hub of the disc gear 100 to be processed, and the disc gear 100 to be processed is guaranteed to be smoothly sleeved on the pin shaft 2.
At least two limit threaded holes 53 are uniformly formed in the lower portion of the second nut 5 along the circumferential direction of the second nut, and each limit threaded hole 53 is communicated with the small-diameter hole. So design, spacing screw hole 53 is offered along the radial of second nut 5, a plurality of holding screw 7 corresponds the screw thread cartridge at a plurality of spacing screw holes 53, and the tip top holding shaft body 1 of holding screw 7 sets up to realize spacing to the circumference of second nut 5 and shaft body 1, prevent that threaded connection from becoming flexible from appearing in the course of working and influence the problem of machining precision.
The first nut 4 is a hexagonal nut.
The second nut 5 is a round nut.
Working principle:
when a disk gear needs to be ground, the lower part of a pin shaft 2 is coaxially inserted into a positioning blind hole 11 of a shaft body 1, and the pin shaft 2 is connected with the shaft body 1 through a cylindrical pin 6 so as to realize circumferential positioning;
the disc gear 100 to be processed is sleeved on the pin shaft 2, the top end of the shaft body 1 is used for axially positioning the disc gear 100 to be processed, and then a hexagonal nut is screwed by a spanner so as to push the gasket 10 and the pressing plate 3 to move downwards to compress the disc gear 100 to be processed;
and then the round nut is rotated to move upwards until the elastic sealing ring 8 is contacted with the end face of the disc gear 100 to be processed, and finally the set screw 7 is screwed down to perform circumferential positioning, so that the screw thread is prevented from loosening in the processing process.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (10)
1. The utility model provides a dish gear grinding dabber which characterized in that: including axis body (1), round pin axle (2), clamp plate (3), first nut (4) and second nut (5), wherein the coaxial processing of upper end of axis body (1) has locating blind hole (11), and the coaxial cartridge of lower tip of round pin axle (2) is in locating blind hole (11), and it is spacing through cylindric lock (6) of radial arrangement, second nut (5) screw thread suit is on the upper end of axis body (1) and through holding screw (7) spacing, wait to process set gear (100) coaxial suit and set up the top at axis body (1) on axis body (2) and its wheel hub bottom, wait to process the lower terminal surface of set gear (100) and set up the top at second nut (5), and wait to be provided with sealing washer (8) between set gear (100) and the second nut (5), clamp plate (3) slide about and the cover is on axis body (2) and press and be established on the top of waiting to process set gear (100), first nut (4) screw thread suit is on axis body (2) top of clamp plate (3), the bottom of axis body (2) and axis body (1) are opened hole (9) respectively.
2. A disk gear tooth grinding spindle as defined in claim 1, wherein: the shaft body (1) comprises a first cylindrical section (12) and a second cylindrical section (13) which are coaxially arranged from top to bottom in sequence, wherein the diameter of the first cylindrical section (12) is larger than that of the second cylindrical section (13), and the outer circular surface of the first cylindrical section (12) is provided with threads.
3. A disk gear tooth grinding spindle as defined in claim 2, wherein: the upper part of the second cylindrical section (13) is provided with a first limiting through hole (14) along the radial direction, and the first limiting through hole (14) is communicated with the positioning blind hole (11).
4. A disk gear tooth grinding spindle as defined in claim 1, wherein: the pin shaft (2) comprises a third cylindrical section (21), a fourth cylindrical section (22) and a fifth cylindrical section (23) which are coaxially arranged from top to bottom in sequence, wherein an external thread is machined in the middle of the third cylindrical section (21), the diameter of the fourth cylindrical section (22) is larger than that of the third cylindrical section (21) and the fifth cylindrical section (23), and a second limiting through hole (24) is formed in the fifth cylindrical section (23) along the radial direction of the fifth cylindrical section.
5. A disk gear tooth grinding spindle as defined in claim 4, wherein: the diameter of the fourth cylindrical section (22) is smaller than the inner diameter of the hub of the disc gear (100) to be processed.
6. A disk gear tooth grinding spindle as defined in claim 1, wherein: a gasket (10) is arranged between the first nut (4) and the pressing plate (3).
7. A disk gear tooth grinding spindle as defined in claim 1, wherein: the inside of second nut (5) has offered ladder through-hole (52) along its axial, wherein the major diameter hole in ladder through-hole (52) is the unthreaded hole and is located the upper portion setting, the minor diameter hole in ladder through-hole (52) is the screw hole and is located the lower part setting.
8. A disk gear tooth grinding spindle as defined in claim 7, wherein: at least two limit threaded holes (53) are uniformly formed in the lower portion of the second nut (5) along the circumferential direction of the second nut, and each limit threaded hole (53) is communicated with the small-diameter hole.
9. A disk gear tooth grinding spindle as defined in claim 1, wherein: the first nut (4) is a hexagonal nut.
10. A disk gear tooth grinding spindle as defined in claim 1, wherein: the second nut (5) is a round nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321674356.4U CN219900530U (en) | 2023-06-29 | 2023-06-29 | Gear grinding mandrel for disk gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321674356.4U CN219900530U (en) | 2023-06-29 | 2023-06-29 | Gear grinding mandrel for disk gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219900530U true CN219900530U (en) | 2023-10-27 |
Family
ID=88421496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321674356.4U Active CN219900530U (en) | 2023-06-29 | 2023-06-29 | Gear grinding mandrel for disk gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219900530U (en) |
-
2023
- 2023-06-29 CN CN202321674356.4U patent/CN219900530U/en active Active
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