CN214023896U - Hobbing clamp based on replaceable positioning sleeve - Google Patents

Hobbing clamp based on replaceable positioning sleeve Download PDF

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Publication number
CN214023896U
CN214023896U CN202022662646.XU CN202022662646U CN214023896U CN 214023896 U CN214023896 U CN 214023896U CN 202022662646 U CN202022662646 U CN 202022662646U CN 214023896 U CN214023896 U CN 214023896U
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China
Prior art keywords
sleeve
positioning
diameter
hobbing
anchor clamps
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CN202022662646.XU
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Chinese (zh)
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成钢
袁剑平
杨仁奇
谢海波
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Jianglu Machinery and Electronics Group Co Ltd
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Jianglu Machinery and Electronics Group Co Ltd
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Abstract

The utility model discloses a gear hobbing anchor clamps based on interchangeable position sleeve, establish including the anchor clamps body, cover and cup joint the gland nut on the screw thread section at gasket and screw thread on the specific screw thread section of anchor clamps, the tooth base cover is established on the specific cooperation section of anchor clamps the cover is equipped with the position sleeve in the cooperation section, the internal diameter d of position sleeveInner partThe diameter d of the positioning sleeve is consistent with the diameter d of the matching sectionOuter coverIs consistent with the diameter D of the inner hole of the gear blank. The utility model discloses utilize current gear hobbing anchor clamps's locating surface: outer diameter of the mating section, dOuter coverCo-operating with the inner bore D of the gear blank, DInner partMatched with the size d on the clamp body to realize the expansion of the positioning surface of the hobbing clamp, so that when the size of the inner hole on the gear blank is not consistent with the size d on the clamp body, the hobbing clamp can be used for clamping the gear blankWhen the size of the inner hole is larger than the size d, the size difference is filled through the positioning sleeve, so that the inner hole wall of the gear blank is attached to the positioning part on the fixture, and the coaxiality of the pitch circle on the gear blank and the positioning surface of the fixture is further ensured.

Description

Hobbing clamp based on replaceable positioning sleeve
Technical Field
The utility model relates to the technical field of gears, concretely relates to gear hobbing anchor clamps based on interchangeable position sleeve.
Background
In the transmission machinery manufacturing industry, the manufacturing technology of gears is very important. The proportion of the machining and production rigidity of the hobbing is quite large, and the proportion of the usage of the hobbing clamp is also large. The existing hobbing clamp structure is shown in fig. 1, and comprises a clamp body 1, a gasket 2 and a compression nut 3, wherein the clamp body comprises a fixing section 101, a shaft collar 102, a matching section 103 and a threaded section 104 which are sequentially and coaxially connected from bottom to top, a gear blank 4 is sleeved on the matching section 103, the gasket 2 is sleeved on the threaded section 104, the compression nut 3 is sleeved on the threaded section 104 in a threaded manner, the gasket 2 and the gear blank 4 are axially compressed on the shaft collar 102, the diameter D of the matching section 103 is consistent with the diameter D of an inner hole of the gear blank 4, and the matching section 103 is coaxial with the inner hole of the gear blank 4.
When the gear blank is machined, the positioning diameter of the inner hole of the gear blank is D, the diameter of the positioning surface on the matching section 103 of the hobbing fixture is D, and when D is D, the coaxiality of the pitch circle of the gear and the positioning surface of the hobbing fixture can be realized by controlling the matching clearance of the gear; and when the gear blank with other models, namely D > D, as shown in fig. 2, because the fit clearance is too large, the coaxiality of the gear pitch circle and the gear hobbing fixture positioning surface cannot be realized, the fixture must be redesigned to realize D ═ D, the gear hobbing processing can be carried out after the fit requirement is met, and the coaxiality of the gear pitch circle and the gear hobbing fixture positioning surface is ensured.
Therefore, the clamp is large in size and high in material consumption, and the diameter D of the matching section 103 is required to be consistent with the diameter D of the inner hole of the gear blank 4, so that the hobbing clamp can be used for only one type of product. The products in the transmission machinery manufacturing industry are updated faster, the varieties of gears are increased, the use amount of the hobbing clamps is increased in a ratio, and each new gear with one size needs to be correspondingly configured with a corresponding hobbing clamp, so that the hobbing clamps occupy high tooling clamp cost. Meanwhile, with the increasingly intense market competition in the transmission machinery manufacturing industry, cost reduction and quality improvement become key technical problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the hobbing clamp based on the replaceable positioning sleeve is provided, and the problems that the existing hobbing clamp can only be applied to a gear blank with one inner hole size, the gear blank with inner holes of different sizes needs to correspond to a hobbing clamp, and then the hobbing clamp occupies high tooling clamp cost and increases gear machining cost are solved.
The utility model adopts the technical scheme as follows:
hobbing clamp based on replaceable positioning sleeve comprises a clamp body, a gasket sleeved on a thread section of the clamp body and a compression nut sleeved on the thread section in a threaded manner, wherein a gear blank is sleeved on a matching section of the clamp body, the matching section is sleeved with the positioning sleeve, and the inner diameter d of the positioning sleeveInner partThe diameter d of the positioning sleeve is consistent with the diameter d of the matching sectionOuter coverIs consistent with the diameter D of the inner hole of the gear blank.
Furthermore, a positioning ring is convexly formed on one side of the outer circumferential surface of the positioning sleeve, which is close to the collar of the clamp body.
Furthermore, the upper end face and the lower end face of the positioning ring rotate for a circle around the axis of the inner hole of the positioning ring, and the axial jumping quantity of any point on the positioning ring does not exceed 0.01 mm.
Further, the top of the locating sleeve contacts the bottom of the spacer.
Further, the coaxiality of the inner ring and the outer ring of the positioning sleeve is 0.015 mm.
Further, the gasket comprises an upper gasket and a lower gasket, wherein the bottom surface of the upper gasket protrudes downwards to form a spherical surface protrusion, the top surface of the lower gasket is recessed to form a spherical surface groove, and the spherical surface protrusion is inserted into and attached to the spherical surface groove;
the top surface of the upper washer is in contact with the bottom surface of the compression nut, and the bottom surface of the lower washer is in contact with the top surface of the gear blank.
Further, the bottom surface of the lower gasket is in contact with the top surface of the positioning sleeve.
Further, the material of the locating sleeve is wear-resistant alloy steel which is subjected to quenching treatment, and the hardness of the locating sleeve is greater than 58 HRC.
Due to the adoption of the technical scheme, the beneficial effects of the utility model are that:
1. the utility model discloses hobbing clamp based on interchangeable position sleeve utilizes current hobbing clamp's locating surface: outer diameter of the mating section, dOuter coverCo-operating with the inner bore D of the gear blank, DInner partThe positioning surface of the hobbing clamp is expanded by matching with the dimension d on the clamp body, so that when the dimension of an inner hole on the gear blank is inconsistent with the dimension d on the clamp body and the dimension of the inner hole is larger than the dimension d, the dimension difference is filled through the positioning sleeve, the inner hole wall of the gear blank is attached to the positioning part on the clamp, the coaxiality of a pitch circle on the gear blank and the positioning surface of the clamp is ensured, and the hobbing positioning requirement is met;
2. the utility model discloses a hobbing clamp based on interchangeable position sleeve sets up this mechanism of holding ring on the position sleeve to increase the position sleeve to the auxiliary positioning structure of tooth base, increase the anchor clamps to the locating surface of the utility model, thereby satisfy the use requirement that the tooth base of great internal diameter can utilize the little hobbing clamp of diameter; the position sleeve can not only install the tooth base that hole diameter D is greater than anchor clamps specific diameter D on anchor clamps like this, can also enlarge the locating surface of tooth base to the increase the utility model discloses the tooth base size that can be suitable for.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly described below, it should be understood that the proportional relationship of each component in the drawings in this specification does not represent the proportional relationship in the actual material selection design, and it is only a schematic diagram of the structure or the position, in which:
FIG. 1 is a schematic diagram of a prior art configuration;
FIG. 2 is a schematic view of the engagement of the tooth blank with the fixture after changing the model;
FIG. 3 shows a first embodiment of the present invention;
FIG. 4 is a schematic view of the structure of the position sleeve of FIG. 3;
FIG. 5 shows a second embodiment of the present invention;
FIG. 6 is a schematic structural view of the positioning sleeve of FIG. 5;
fig. 7 is a schematic view of the structure of the gasket.
Reference numerals in the drawings indicate:
1-a fixture body, 101-a fixing section, 102-a collar, 103-a matching section and 104-a thread section;
2-spacer, 201-upper washer, 202-lower washer;
3-a compression nut, 4-a gear blank, 5-a positioning sleeve and 6-a positioning ring.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention.
The present invention will be described in detail with reference to fig. 1 to 7.
Example 1
As shown in fig. 1-7, the utility model discloses gear hobbing anchor clamps based on interchangeable position sleeve, including the anchor clamps body 1, cover establish gasket 2 and the screw thread cup joint gland nut 3 on the screw thread section 104 of the anchor clamps body 1 on the screw thread section 104, 4 covers of tooth base are established on the cooperation section 103 of the anchor clamps body 1 the cover is equipped with position sleeve 5 on the cooperation section 103, the internal diameter d of position sleeve 5Inner partThe outer diameter d of the positioning sleeve 5 is consistent with the diameter d of the matching section 103Outer coverCorresponding to the inner hole diameter D of the gear blank 4.
Inner ring dInner partAnd outer ring dOuter coverAnd (4) coaxial.
The utility model relates to a gear hobbing anchor clamps based on interchangeable position sleeve, as shown in FIG. 2, the external diameter of position sleeve 5 is dOuter coverInner diameter of dInner part. Firstly, the utility model discloses utilize current gear hobbing anchor clamps's locating surface: outer diameter of the mating section 103, dOuter coverCo-operating with the inner bore D of the gear blank, DInner partMatched with the size d on the clamp body 1 to realize the expansion of the positioning surface of the hobbing clamp, so that when the size of the inner hole on the gear blank 4 is inconsistent with the size d on the clamp body 1 and the size of the inner hole is larger than the size d, the positioning sleeve 5 is used for fillingFill "its size is poor to guarantee the location position laminating on tooth base inner bore wall and the anchor clamps, guarantee then the pitch circle on the tooth base and the axiality of anchor clamps locating surface, satisfy the gear hobbing location requirement then.
When implementing, generally select 4 hole diameters of tooth base to be greater than gear hobbing anchor clamps locating surface diameter 2mm above, select the utility model discloses this kind of structure carries out the location installation of tooth base 4.
Example 2
As shown in fig. 1-7, the utility model discloses gear hobbing anchor clamps based on interchangeable position sleeve, including the anchor clamps body 1, cover establish gasket 2 and the screw thread cup joint gland nut 3 on the screw thread section 104 of the anchor clamps body 1 on the screw thread section 104, 4 covers of tooth base are established on the cooperation section 103 of the anchor clamps body 1 the cover is equipped with position sleeve 5 on the cooperation section 103, the internal diameter d of position sleeve 5Inner partThe outer diameter d of the positioning sleeve 5 is consistent with the diameter d of the matching section 103Outer coverCorresponding to the inner hole diameter D of the gear blank 4.
The positioning sleeve 5 is externally protruded to form a positioning ring 6 on one side of the outer circumferential surface close to the collar 102 of the clamp body 1.
Furthermore, the upper end surface and the lower end surface of the positioning ring 6 rotate for a circle around the axis of the inner hole of the positioning ring 6, and the axial jumping quantity of any point on the positioning ring does not exceed 0.01 mm.
When the area that is used for supporting the tooth base on the axle collar is less or lack the holding surface, when leading to the installation tooth base, be used for the locating surface undersize of tooth base on the anchor clamps, as shown in fig. 5, the axle collar terminal surface can't carry out the axial to the tooth base and support, sets up this mechanism of holding ring 6 on the position sleeve 5 this moment to increase 5 auxiliary positioning structures to the tooth base of position sleeve, increase anchor clamps then right the utility model discloses a locating surface is as shown in fig. 5 and fig. 6, thereby satisfies the operation requirement that the great tooth base of internal diameter can utilize the little gear hobbing anchor clamps of diameter.
The position sleeve 5 can not only install the tooth base that hole diameter D is greater than the diameter D of the anchor clamps body 1 on anchor clamps like this, can also enlarge the locating surface of tooth base to the increase the utility model discloses the tooth base size that can be suitable for.
Example 3
The specific details of the positioning sleeve 5 are as follows: the top of the locating sleeve 5 is in contact with the bottom of the spacer 2.
Further, the coaxiality of the inner ring and the outer ring of the positioning sleeve 5 is 0.015 mm.
Example 4
As for the gasket 2, the specific structure is as follows: as shown in fig. 7, the gasket 2 includes an upper gasket 201 and a lower gasket 202, the bottom surface of the upper gasket 201 protrudes downward to form a spherical protrusion, the top surface of the lower gasket 202 is recessed to form a spherical recess, and the spherical protrusion is inserted into and attached to the spherical recess; the top surface of the upper washer 201 contacts the bottom surface of the compression nut 3, and the bottom surface of the lower washer 202 contacts the top surface of the tooth blank 4.
The gasket 2 is arranged into the upper gasket 201 and the lower gasket 202, and the upper gasket 201 and the lower gasket 202 are in spherical contact with each other, so that the position can be automatically adjusted through the spherical contact part, the stress of the gasket 2 is uniform, the locking force from the compression nut 3 is uniformly applied to the gear blank and the end part of the positioning sleeve 5, the stress environment of the gear blank and the end part of the positioning sleeve 5 is improved, and the stress damage is prevented.
Further, the bottom surface of the lower washer 202 is in contact with the top surface of the positioning sleeve 5.
Example 5
The locating sleeve 5 is made of wear-resistant alloy steel, and the hardness of the locating sleeve is greater than 58HRC after quenching treatment.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (8)

1. Hobbing clamp based on interchangeable position sleeve including the anchor clamps body (1), overlaps and establish gasket (2) and the screw thread gland nut (3) of cup jointing on screw thread section (104) on the screw thread section (104) of the anchor clamps body (1), and tooth blank (4) cover is established on cooperation section (103) of the anchor clamps body (1), its characterized in that: the matching section (103) is sleeved with a positioning sleeve (5), and the inner diameter d of the positioning sleeve (5)Inner partThe outer diameter d of the positioning sleeve (5) is consistent with the diameter d of the matching section (103)Outer coverWith tooth blank (4)The inner hole diameter D is consistent.
2. The hobbing clamp based on interchangeable locating sleeve of claim 1, characterized in that: one side of the outer circumferential surface of the positioning sleeve (5), which is close to the collar (102) of the clamp body (1), protrudes outwards to form a positioning ring (6).
3. The hobbing clamp based on interchangeable locating sleeve of claim 2, characterized in that: the upper end face and the lower end face of the positioning ring (6) rotate for a circle around the axis of the inner hole of the positioning ring (6), and the axial runout of any point on the positioning ring does not exceed 0.01 mm.
4. The hobbing clamp based on interchangeable locating sleeve of claim 1, characterized in that: the top of the locating sleeve (5) is contacted with the bottom of the gasket (2).
5. The hobbing clamp based on interchangeable locating sleeve of claim 1, characterized in that: and the coaxiality of the inner ring and the outer ring of the positioning sleeve (5) is 0.015 mm.
6. The hobbing clamp based on interchangeable locating sleeve of claim 1, characterized in that: the gasket (2) comprises an upper gasket (201) and a lower gasket (202), the bottom surface of the upper gasket (201) protrudes downwards to form a spherical surface protrusion, the top surface of the lower gasket (202) is recessed to form a spherical surface groove, and the spherical surface protrusion is inserted into and attached to the spherical surface groove;
the top surface of the upper washer (201) is contacted with the bottom surface of the compression nut (3), and the bottom surface of the lower washer (202) is contacted with the top surface of the gear blank (4).
7. The hobbing clamp based on interchangeable locating sleeve of claim 6, characterized in that: the bottom surface of the lower gasket (202) is in contact with the top surface of the positioning sleeve (5).
8. The hobbing clamp based on interchangeable locating sleeve of claim 1, characterized in that: the locating sleeve (5) is made of wear-resistant alloy steel, and the hardness of the locating sleeve is greater than 58HRC after quenching treatment.
CN202022662646.XU 2020-11-17 2020-11-17 Hobbing clamp based on replaceable positioning sleeve Active CN214023896U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022662646.XU CN214023896U (en) 2020-11-17 2020-11-17 Hobbing clamp based on replaceable positioning sleeve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022662646.XU CN214023896U (en) 2020-11-17 2020-11-17 Hobbing clamp based on replaceable positioning sleeve

Publications (1)

Publication Number Publication Date
CN214023896U true CN214023896U (en) 2021-08-24

Family

ID=77359624

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202022662646.XU Active CN214023896U (en) 2020-11-17 2020-11-17 Hobbing clamp based on replaceable positioning sleeve

Country Status (1)

Country Link
CN (1) CN214023896U (en)

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