CN203197407U - Gear shaping fixture - Google Patents
Gear shaping fixture Download PDFInfo
- Publication number
- CN203197407U CN203197407U CN 201320156698 CN201320156698U CN203197407U CN 203197407 U CN203197407 U CN 203197407U CN 201320156698 CN201320156698 CN 201320156698 CN 201320156698 U CN201320156698 U CN 201320156698U CN 203197407 U CN203197407 U CN 203197407U
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- gear
- conical
- conical section
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Abstract
The utility model discloses a gear shaping fixture which comprises a base and a pull rod. An annular mounting boss is arranged at the lower end of the base, a screw hole is formed in the mounting boss in the axial direction, and the top face of the base is a positioning face. The pull rod is of a three-section type step structure and is divided into a conical section, a cylindrical section and a threaded section from top to bottom, wherein the conical section is big end up, the diameter of the cylindrical section is smaller the smallest diameter of the conical section, the cylindrical section penetrates in the central hole of the base, and the threaded section is exposed of the bottom face of the base. An elastic sleeve is sleeved on the conical section of the pull rod, the upper end of an inner hole of the elastic sleeve is a conical horn opening matched with the conical section, and an axial groove (6a) is formed in the circumferential wall of the elastic sleeve. According to the gear shaping fixture, the elastic sleeve is used for positioning the inner hole wall of a gear billet, positioning precision is high, eccentricity can be well avoided, and mounting and dismounting of the gear billet are convenient. In addition, due to the fact that a gasket in the traditional structure is eliminated, a gear shaper cutter can be effectively prevented from being opened, and defects in the existing structure are well overcome.
Description
Technical field
The utility model belongs to the anchor clamps field, specifically, relates in particular to a kind of gear-shaping clamp for clamping, machining gears.
Background technology
As described in Figure 1, existing gear-shaping clamp is nut compression type structure, specifically comprises base 1, packing ring 2, nut 3 and pull bar 4, and wherein the installation base 1a of base 1 bottom fixes with gear shapping machine base Z by the screw 5 of axial setting.The upper end of described base 1 is the 1a of positioning boss section, the above position of the 1a of this positioning boss section is positioning and guiding section, after positioning and guiding section cover is loaded onto tooth base C to be processed, compressed by the packing ring 2 that is sleeved on described pull bar 4 tops and nut 3, and the middle part of pull bar 4 is through in the centre bore of base 1, and the drawing cylinder Y in the bottom of this pull bar 4 and the gear shapping machine base Z is fixedly connected with.When drawing cylinder Y strained, tooth base C was clamped between the 1a of positioning boss section and the packing ring 2, carried out gear shaping so that pinion cutter D moves up and down.In the gear shaping process, we find that there is following defective in existing anchor clamps:
1, because existing anchor clamps adopt the locate mode of shaft sleeve, and positioning accuracy is not high, eccentric situation appears easily;
When 2, installing and removing tooth base C, needs adopt spanner to tighten or unclamp described nut 3, waste time and energy, and clamping efficient is low;
3, when drawing cylinder Y unclamps, described packing ring 2 also can be released, and this moment, packing ring 2 easily rocked, and pinion cutter D is also moving up and down, and so just probably pinion cutter D is opened.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of gear-shaping clamp, and wish guarantees clamping precision, and is convenient to simultaneously install and remove the tooth base, and is difficult for breaking pinion cutter.
The technical solution of the utility model is as follows: a kind of gear-shaping clamp, comprise base (1) and pull bar (4), it is characterized in that: described base (1) lower end is the installation base (1a) of annular, have vertically the screw via hole on this installation base (1a), and the end face of base (1) is locating surface; Described pull bar (4) is syllogic hierarchic structure, and be followed successively by from top to bottom conical section, cylindrical section and thread segment, wherein conical section is up big and down small, the diameter of cylindrical section is less than the minimum diameter of conical section, and this cylindrical section is located in the centre bore of described base (1), and thread segment exposes the bottom surface of base (1); The conical section of described pull bar (4) is set with a resilient sleeve (6), and the upper end of resilient sleeve (6) endoporus is the conical horn mouth that adapts with this conical section, and has axial groove (6a) on the circle wall of resilient sleeve (6).
Adopt above technical scheme, this gear-shaping clamp positions by the inner hole wall of resilient sleeve (6) to tooth base (C), positioning accuracy is high, can prevent well off-centre, and the mounting or dismounting of tooth base (C) are convenient, in addition owing to having cancelled the packing ring in the traditional structure, so just can effectively avoid opening pinion cutter, overcome well the defective of existing structure, had good practicality, be suitable for extensively promoting the use.
As optimal design, the tapering of described resilient sleeve (6) conical horn mouth is 10 ° to 15 °.Equally, the tapering of described resilient sleeve (6) conical horn mouth can not be excessive, again can not be too small, and excessive words easily cause the deflection of resilient sleeve (6) excessive, thereby resilient sleeve (6) is swollen bad, self-locking easily occurs again in too small words.
As preferably, the central hole of described pull bar (4) end face has interior hexagonal hole (4a) vertically.Adopt above design, the instrument of being convenient to stretches in this interior hexagonal hole (4a), thus rotating tension bar (4), so that the thread segment of pull bar (4) is fixedly connected with drawing cylinder (Y).
In the present embodiment, the diameter of described pull bar (4) thread segment is less than the diameter of its cylindrical section, and the length of thread segment is 2 times of cylindrical section.
Beneficial effect: this gear-shaping clamp positions by the inner hole wall of resilient sleeve (6) to tooth base (C), positioning accuracy is high, can prevent well off-centre, and the mounting or dismounting of tooth base (C) are convenient, owing to having cancelled the packing ring in the traditional structure, so just can effectively avoid opening pinion cutter in addition, overcome well the defective of existing structure, have good practicality, be suitable for extensively promoting the use.
Description of drawings
Fig. 1 is the structural representation of existing anchor clamps;
Fig. 2 is structural representation of the present utility model;
Fig. 3 is the structural representation of pull bar 4 among Fig. 2.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
Shown in Fig. 2,3, a kind of gear-shaping clamp mainly is made of base 1, pull bar 4 and resilient sleeve 6.Wherein, the end face of described base 1 is locating surface, and the lower end of base 1 is the installation base 1a of annular, have vertically the screw via hole on this installation base 1a, after screw 4 passes this screw via hole, be screwed in the screwed hole on the gear shapping machine base Z, thereby base 1 is fixed on the gear shapping machine base Z.
Described pull bar 4 is syllogic hierarchic structure, and be followed successively by from top to bottom conical section, cylindrical section and thread segment, and wherein conical section is up big and down small, and the diameter of cylindrical section is less than the minimum diameter of conical section, and this cylindrical section is located in the centre bore of described base 1, and thread segment exposes the bottom surface of base 1.In addition, the central hole of described pull bar 4 end faces has interior hexagonal hole 4a vertically, and the diameter of pull bar 4 thread segments is less than the diameter of its cylindrical section, and the length of thread segment is 2 times of its cylindrical section, and thread segment is used for linking to each other with drawing cylinder Y in the gear shapping machine base Z.
Can find out from Fig. 2,3, the conical section of described pull bar 4 is set with a resilient sleeve 6, the structure of this resilient sleeve 6 is basic identical with the existing resilient sleeve that extensively adopts, circle wall in resilient sleeve 6 has one group of axial groove 6a, this axial groove 6a runs through the inner and outer wall of resilient sleeve 6, but another end face of the bottom land of axial groove 6a and resilient sleeve 6 has certain distance.And the upper end of resilient sleeve 6 endoporus is the conical horn mouth that adapts with pull bar 4 conical section, and the tapering of this conical horn mouth is 10 ° to 15 °, and can be more preferably 15 °.
The above only is preferred embodiment of the present utility model; not take the utility model as restriction; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (4)
1. a gear-shaping clamp comprises base (1) and pull bar (4), it is characterized in that: described base (1) lower end have vertically the screw via hole on this installation base (1a), and the end face of base (1) is locating surface for the installation base (1a) of annular; Described pull bar (4) is syllogic hierarchic structure, and be followed successively by from top to bottom conical section, cylindrical section and thread segment, wherein conical section is up big and down small, the diameter of cylindrical section is less than the minimum diameter of conical section, and this cylindrical section is located in the centre bore of described base (1), and thread segment exposes the bottom surface of base (1); The conical section of described pull bar (4) is set with a resilient sleeve (6), and the upper end of resilient sleeve (6) endoporus is the conical horn mouth that adapts with this conical section, and has axial groove (6a) on the circle wall of resilient sleeve (6).
2. gear-shaping clamp according to claim 1, it is characterized in that: the tapering of described resilient sleeve (6) conical horn mouth is 10 ° to 15 °.
3. gear-shaping clamp according to claim 1 and 2, it is characterized in that: the central hole of described pull bar (4) end face has interior hexagonal hole (4a) vertically.
4. gear-shaping clamp according to claim 3, it is characterized in that: the diameter of described pull bar (4) thread segment is less than the diameter of its cylindrical section, and the length of thread segment is 2 times of cylindrical section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320156698 CN203197407U (en) | 2013-04-01 | 2013-04-01 | Gear shaping fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320156698 CN203197407U (en) | 2013-04-01 | 2013-04-01 | Gear shaping fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203197407U true CN203197407U (en) | 2013-09-18 |
Family
ID=49141547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320156698 Expired - Lifetime CN203197407U (en) | 2013-04-01 | 2013-04-01 | Gear shaping fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203197407U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103143791A (en) * | 2013-04-01 | 2013-06-12 | 重庆永达精密机械有限公司 | Gear shaping fixture |
| CN104325200A (en) * | 2014-11-17 | 2015-02-04 | 江苏太平洋精锻科技股份有限公司 | Fixture for gear shaping on thin-wall outer gear ring |
-
2013
- 2013-04-01 CN CN 201320156698 patent/CN203197407U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103143791A (en) * | 2013-04-01 | 2013-06-12 | 重庆永达精密机械有限公司 | Gear shaping fixture |
| CN104325200A (en) * | 2014-11-17 | 2015-02-04 | 江苏太平洋精锻科技股份有限公司 | Fixture for gear shaping on thin-wall outer gear ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130918 |