CN219966668U - Dish tooth location frock - Google Patents
Dish tooth location frock Download PDFInfo
- Publication number
- CN219966668U CN219966668U CN202320890887.0U CN202320890887U CN219966668U CN 219966668 U CN219966668 U CN 219966668U CN 202320890887 U CN202320890887 U CN 202320890887U CN 219966668 U CN219966668 U CN 219966668U
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- CN
- China
- Prior art keywords
- gland
- positioning table
- base
- positioning
- gasket
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- 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.)
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Links
- 210000004907 gland Anatomy 0.000 claims abstract description 31
- 230000036339 tooth positioning Effects 0.000 claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 239000004033 plastic Substances 0.000 claims description 4
- 238000003754 machining Methods 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000003139 buffering effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
Landscapes
- Machine Tool Units (AREA)
Abstract
The utility model relates to the technical field of fixtures, in particular to a disc tooth positioning tool, which comprises a base, an expansion sleeve and a gland, wherein the expansion sleeve is fixedly connected to the gland, the utility model also comprises a positioning table with a containing cavity arranged in the middle part, the positioning table penetrates through the upper part of the base and is detachably connected with the base, the positioning table is positioned below the expansion sleeve, a plurality of grooves are formed in the circumferential direction of the side wall of the positioning table, the accommodating cavity of the positioning table is in a shape of a circular table with a wide upper part and a narrow lower part, and the cross-sectional area of the top end of the positioning table is smaller than that of the side wall of the positioning table; the top of base sets up into the round platform form of upper and lower width, and the through-hole has been seted up at the base middle part, install the pull rod in the through-hole, the gland is cylindric, and the gland bottom forms tertiary echelonment structure, and the gasket is installed to the gland bottom, forms the annular groove that is used for installing the expansion shell between gasket and the gland top, forms the removal space between gasket and the base top, dish tooth location frock can in time clear up the piece to reduce the influence that positioning table and gear surface contact bring.
Description
Technical Field
The utility model relates to the technical field of clamps, in particular to a disc tooth positioning tool.
Background
The fixture is used for fixing a product in the machining process to realize positioning, whether the positioning accuracy has an important influence on the quality of the final product or not, the disc tooth positioning fixture is a machining fixture for gears, an expansion sleeve is used as a keyless coupling device in the prior art to realize clamping and positioning of the gears so as to ensure the machining precision, but the problem easily occurs in the use process is that scraps generated in the machining process of the gears are easily scattered at any position in the fixture, and the scraps are inconvenient to clean in time after being accumulated too much, so that the normal use of the fixture and the machining precision of the gears are affected.
Disclosure of Invention
The utility model provides a disc tooth positioning tool which can solve the problems that scraps generated in the machining process affect the machining precision and are inconvenient to clean.
The utility model provides the following technical scheme:
the disc tooth positioning tool comprises a base, an expansion sleeve and a gland, wherein the expansion sleeve is fixedly connected to the gland, the disc tooth positioning tool further comprises a positioning table with a containing cavity in the middle, the positioning table penetrates through the upper part of the base and is detachably connected with the base, the positioning table is positioned below the expansion sleeve, a plurality of grooves are formed in the circumferential direction of the side wall of the positioning table, the containing cavity of the positioning table is in a truncated cone shape with a wide upper part and a narrow lower part, and the cross-sectional area of the top end of the positioning table is smaller than that of the side wall of the positioning table; the top of the base is arranged into a truncated cone shape with a narrow upper part and a wide lower part, a through hole is formed in the middle of the base, a pull rod is installed in the through hole, and the pull rod is fixedly connected with the gland; the gland is cylindric, and the gland bottom forms tertiary echelonment structure, installs the gasket in the gland bottom, through screw connection fixed between gasket and the gland, form the annular groove that is used for installing the expansion shell between gasket and the gland top, form the removal space between gasket and the base top.
The beneficial effects are that:
1. the piece that produces in the processing part in-process can be through blowing the discharge in the inslot that sets up on the locating bench terminal surface, and then promotes the machining precision of gear, and the outside expansion of locating bench top has formed the round platform of upper width and lower narrow, and the cavity opening area that forms between locating bench top and the cover that expands increases, is convenient for blow downwards along the side of locating bench after the processing is accomplished to impurity such as clearance piece more thoroughly.
2. The cross-sectional area at the top end of the positioning table is smaller, so that the contact area between the positioning table and the gear to be processed is smaller, and the influence caused by the contact between the positioning table and the gear surface is reduced as much as possible while the clamping positioning is ensured.
Further, the bottom surface of the groove is inclined downward in a direction away from the center of the positioning table.
The beneficial effects are that: and the scraps generated in the processing process can fall on the inclined plane to fall freely, so that the work load of cleaning scraps is reduced.
Further, the expansion sleeve consists of a plurality of steel blocks, and the adjacent steel blocks are bonded by flexible blocks.
The beneficial effects are that: along with the downward pressing of the expansion sleeve, the flexible block expands outwards along the trapezoid table top of the base so as to clamp the gear hole.
Further, the inner side of the flexible block is arranged in a net shape to form a plurality of separable blocks.
The beneficial effects are that: because the flexible block has certain viscosity, the relative sliding is not easy to generate between the flexible block and the base when the flexible block is pressed down, the inner side of the flexible block is arranged into a net shape, and when the flexible block slides down, gaps are formed by separating each square block, so that the flexible block can slide down smoothly along the surface of the base.
Further, the flexible block is made of rubber;
the beneficial effects are that: the rubber has no noise during elastic deformation, and can reduce vibration, thereby improving the processing precision.
Further, the positioning table is connected with the base by a threaded fastener;
the beneficial effects are that: the positioning tables with different sizes are arranged to be matched with the flexible expansion sleeve so as to adapt to gears of different types in a larger range to realize clamping and positioning.
Further, the gasket is made of hard plastic;
the beneficial effects are that: the rigidity of the hard plastic material ensures good installation effect on the expansion sleeve and has a certain buffering effect compared with the common hard material.
Drawings
FIG. 1 is a cross-sectional view of a first embodiment of a tooth positioning tooling of the present utility model;
FIG. 2 is a schematic view of a positioning table according to the present utility model;
fig. 3 is a schematic structural diagram of an expansion sleeve according to a second embodiment of the positioning tool for disc teeth of the present utility model.
Detailed Description
The following is a further detailed description of the embodiments:
the labels in figures 1-3 of the description include: positioning table 1, base 2, expansion sleeve 3, gland 4, pull rod 5, gear 6, groove 7, rubber block 8, through hole 9, steel block 10, positioning table top 11, positioning table lateral wall 12, gasket 13.
Embodiment one:
as shown in fig. 1 and 2, the disc tooth positioning tool comprises a base 2 with a truncated cone-shaped top, and a gland 4, an expansion sleeve 3 and a positioning table 1 which are sequentially arranged at the top of the base 2 from top to bottom; the gland 4 is cylindrical, the bottom of the gland 4 forms a three-level stepped structure, the bottom of the gland 4 is provided with a gasket 13, the gasket 13 is fixedly connected with the gland 4 through a screw, an annular groove 7 for installing the expansion sleeve 3 is formed between the gasket 13 and the top of the gland 4, and a moving gap is formed between the gasket 13 and the top of the base 2, so that the expansion sleeve 3 can move downwards conveniently; the positioning table 1 is a round table with wide upper part and narrow lower part, the middle part of the top surface of the positioning table 1 is provided with a containing cavity which is concave downwards, the inner wall of the containing cavity is inclined, the cross-sectional area of the top end 11 of the positioning table is smaller than that of the side wall 12 of the positioning table, the supporting strength of the middle part and the bottom of the positioning table 1 can be ensured, meanwhile, the top can also support the gear 6, the contact surface of the supporting part is relatively less, and the scratch of the contact surface of the gear 6 can be reduced. A plurality of grooves 7 are formed along the circumferential directions of the top end 11 and the side end of the positioning table, the bottom surfaces of the grooves 7 incline downwards along the direction away from the center of the positioning table 1, and the positioning table 1 is in threaded connection with a stepped opening in the middle of the base 2; the top of the base 2 is provided with a round table with a narrow top and a wide bottom, the diameter of the lower end of the expansion sleeve 3 is slightly smaller than that of the part contacted with the base 2, the middle part of the base 2 is provided with a through hole 9, a pull rod 5 is arranged in the through hole 9, and the pull rod 5 is in threaded connection with the gland 4.
When the positioning device is used, the positioning hole of the gear is mounted on the positioning table 1 and sleeved on the expansion sleeve 3, and a downward pulling force is applied to the pull rod 5 in a cylinder or hydraulic mode, so that the gland 4 and the expansion sleeve 3 are driven to move downwards simultaneously, and the expansion sleeve 3 is subjected to an outward pushing force given by the top inclined plane of the base 2 so as to achieve the effect of expansion and clamping, so that the positioning of the gear 6 is achieved; in the processing process, the scraps can be discharged from the groove 7, and the residual scraps in the cavity of the positioning table 1 can be cleaned from the groove 7 during subsequent cleaning, so that the processing precision is ensured.
It should be noted that the bottom of the groove 7 is a downward inclined surface towards the outside, so that the chips generated in the process of processing the parts can be further conveniently discharged; the outward expansion of the top end 11 of the positioning table forms a round table with wide top and narrow bottom, the opening area of a cavity formed between the top end 11 of the positioning table and the expansion sleeve 3 is increased, and the air is conveniently blown into the accommodating cavity inside the positioning table 1 along the top end or the groove of the positioning table 1 after the processing is finished, so that impurities such as chips and the like can be thoroughly cleaned.
Embodiment two:
the difference between this embodiment and the first embodiment is that, as shown in fig. 3, the expansion sleeve 3 is composed of a plurality of steel blocks 10, and the adjacent steel blocks 10 are bonded by using the rubber blocks 8, so that the strength of the expansion sleeve 3 is ensured, the expansion effect is also ensured, and the inner wall of the rubber block 8 is provided with a mesh structure, so that the inner side of the rubber block forms a mesh shape, and the deformation is facilitated.
Embodiment III:
the difference between this embodiment and the first embodiment is that the gasket 13 is made of hard plastic, which not only ensures the installation effect of the expansion sleeve 3, but also has a buffering effect.
The above is merely an example of the present utility model, and the present utility model is not limited to the field of the present embodiment, and specific structures and features well known in the art are not described herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these should also be considered as the scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the utility of the patent. The protection scope of the present utility model is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (7)
1. The disc tooth positioning tool comprises a base, an expansion sleeve and a gland, wherein the expansion sleeve is fixedly connected to the gland, and is characterized in that: the positioning table is arranged at the middle part, penetrates through the upper part of the base and is detachably connected with the base, the positioning table is positioned below the expansion sleeve, a plurality of grooves are formed in the circumferential direction of the side wall of the positioning table, the accommodating cavity of the positioning table is in a shape of a circular table with a wide upper part and a narrow lower part, and the cross-sectional area of the top end of the positioning table is smaller than that of the side wall of the positioning table;
the top of the base is arranged into a truncated cone shape with a narrow upper part and a wide lower part, a through hole is formed in the middle of the base, a pull rod is installed in the through hole, and the pull rod is fixedly connected with the gland;
the gland is cylindric, and the gland bottom forms tertiary echelonment structure, installs the gasket in the gland bottom, through screw connection fixed between gasket and the gland, form the annular groove that is used for installing the expansion shell between gasket and the gland top, form the removal space between gasket and the base top.
2. The disc tooth positioning tool according to claim 1, wherein: the bottom surface of the groove is inclined downward in a direction away from the center of the positioning table.
3. The disc tooth positioning tooling of claim 2, wherein: the expansion sleeve consists of a plurality of steel blocks, and the adjacent steel blocks are bonded by flexible blocks.
4. A disc tooth positioning tooling as claimed in claim 3, wherein: the inner side of the flexible block is arranged into a net structure.
5. The disc tooth positioning tool of claim 4, wherein: the flexible block is made of rubber.
6. The disc tooth positioning tooling of claim 5, wherein: the positioning table is connected with the base through a threaded fastener.
7. The disc tooth positioning tooling of claim 6, wherein: the gasket is made of hard plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320890887.0U CN219966668U (en) | 2023-04-19 | 2023-04-19 | Dish tooth location frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320890887.0U CN219966668U (en) | 2023-04-19 | 2023-04-19 | Dish tooth location frock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219966668U true CN219966668U (en) | 2023-11-07 |
Family
ID=88593059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320890887.0U Active CN219966668U (en) | 2023-04-19 | 2023-04-19 | Dish tooth location frock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219966668U (en) |
-
2023
- 2023-04-19 CN CN202320890887.0U patent/CN219966668U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |