CN211162169U - High-precision taper key groove broaching device - Google Patents
High-precision taper key groove broaching device Download PDFInfo
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- CN211162169U CN211162169U CN201921643395.1U CN201921643395U CN211162169U CN 211162169 U CN211162169 U CN 211162169U CN 201921643395 U CN201921643395 U CN 201921643395U CN 211162169 U CN211162169 U CN 211162169U
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- positioning
- connecting disc
- type connecting
- broaching
- inclination
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Abstract
The utility model belongs to the technical field of machining, especially, relate to a high accuracy taper key keyway broaching device, including inclination formula connection pad and positioning core axle, inclination formula connection pad is used for connecting horizontal broaching machine and positioning core axle, its tail end and horizontal broaching machine interference fit, the central axis of inclination formula connection pad coincides rather than the centre of rotation line, the head end terminal surface of inclination formula connection pad is a plane, and is certain angle slope with the centre of rotation line, positioning core axle's tail end terminal surface is the plane, positioning core axle's tail end terminal surface offsets with inclination formula connection pad's head end terminal surface, and two terminal surfaces can be dismantled and connect in the same place, positioning core axle's head end sets up to the cylinder, cylindrical the central axis is mutually perpendicular with positioning core axle's tail end terminal surface. Broaching device, the location is reliable, the machining precision is high, production efficiency is high, convenient operation, processing keyway inclination uniformity is good, can be applied to the broaching of various oblique keyways.
Description
Technical Field
The utility model belongs to the technical field of machining, especially, relate to a high accuracy taper key keyway broaching device.
Background
The upper surface and the lower surface of the inclined key are working surfaces, the upper surface of the key has inclination, the bottom surface of the key groove of the hub has inclination, when the inclined key is arranged in the shaft and the hub, the surface generates great pretightening force, and the inclined key mainly transfers torque by friction force during working and can bear unidirectional axial force. The inclined key can realize accurate positioning in the radial direction, the circumferential direction and the axial direction, is convenient to disassemble and assemble, and is widely applied to shaft connection.
The inner hole taper key groove is usually processed by slotting, planing, broaching, linear cutting and the like. The method for broaching the taper key groove by using the common horizontal broaching machine is a common processing mode, but the taper key groove of the common horizontal broaching machine is generally formed by simply processing a flat gasket on one end pad of a flat key groove broaching tool, so that the processed taper key groove is low in precision, poor in consistency, difficult to guarantee in size and inclination, and seriously influences the production efficiency due to the fact that the gasket needs to be frequently replaced.
SUMMERY OF THE UTILITY MODEL
According to the not enough of above prior art, the utility model provides a high accuracy feather key keyway broaching device, it has effectively solved among the prior art in the feather key keyway course of working low, the precision is not high and operate inconvenient problem.
The technical scheme that the technical problem solved by the utility model is that a high accuracy taper key keyway broaching device, including inclination formula connection pad and positioning mandrel, inclination formula connection pad is used for connecting horizontal broaching machine and positioning mandrel, and its tail end can dismantle fixed connection with horizontal broaching machine, the central axis of inclination formula connection pad coincides with its gyration central line, the head end terminal surface of inclination formula connection pad is a plane, the plane is certain angle α slope with gyration central line, angle α sets up according to the demand of the inclination of required keyway, and angle α's the parameter range that sets up is suitable for different inclination requirements, positioning mandrel's tail end terminal surface is the plane, positioning mandrel's tail end terminal surface offsets with the head end terminal surface of inclination formula connection pad, and two terminal surfaces pass through fastener detachably fixed connection, positioning mandrel's head end sets up to cylinder B, cylinder B and positioning mandrel coaxial setting for positioning installation need carry out the product of broaching processing inclined keyway, cylinder B's central axis is perpendicular with positioning mandrel's tail end terminal surface, set up on positioning mandrel and the connection pad flutedly, the recess is used for carrying out the broaching in the normal standard broach carries out the broach and the high accuracy of broach groove and the high accuracy of broach height that the broach required the broach passes through the keyway, thereby the high accuracy of the broach device is required the high accuracy of the broach is accomplished the keyway, and the broach height size of the broach height that the broach is required for the broach in the broach is required for the broach is reached the broach and the broach height of broach in the broach, thereby the broach is required for the broach is required for the broach device, the broach is not.
The positioning core shaft is characterized in that a plurality of pin holes are formed in the end face of the head end of the inclination type connecting disc, a plurality of positioning pins are arranged on the end face of the tail end of the positioning core shaft in an outwards protruding mode, and the shapes and the sizes of the positioning pins are matched with those of the pin holes and used for achieving positioning of the positioning core shaft on the inclination type connecting disc.
The inclination type connecting disc and the positioning core shaft are all provided with the same number of pin holes in a penetrating mode, the pin holes in the inclination type connecting disc and the positioning core shaft correspond to each other in a one-to-one mode in position, positioning pins can be detachably arranged in the pin holes, and the positioning pins are in interference fit with the pin holes.
The number of the pin holes on the inclined connecting disc is 2-10.
The center of the head end face of the inclination type connecting disc is provided with a positioning round hole, the central axis of the positioning round hole is perpendicular to the head end face of the inclination type connecting disc, the center of the tail end portion of the positioning mandrel is provided with a positioning cylinder in an outwards protruding mode, and the positioning cylinder is in interference fit with the positioning round hole.
The inclination type connecting disc is made of the same material as the positioning mandrel, and can be made of die steel, high-quality alloy structural steel or bearing steel.
The utility model discloses following beneficial effect has: broaching device, the location is reliable, the machining precision is high, production efficiency is high, convenient operation, processing keyway inclination uniformity is good, the accessible changes inclination formula connection pad head end terminal surface and centre of rotation line's slope degree and is applied to the broaching of various oblique keyways.
Drawings
Fig. 1 is a schematic left-side view of a first embodiment of the present invention;
fig. 2 is a schematic front view of a first embodiment of the present invention;
FIG. 3 is an enlarged schematic left view of the angled interface disk of FIG. 1;
FIG. 4 is an enlarged left side view of the positioning mandrel of FIG. 1;
in the figure: 1. inclination type connecting disc 11, cylinder A12, pin hole 13, location round hole 14, flange A2, location dabber 21, cylinder B22, locating pin 23, location cylinder 24, flange B3, fastening bolt 4, recess.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
The first embodiment is as follows:
as shown in fig. 1-4, the high-precision taper key keyway broaching device of the present invention includes a taper type connecting disc 1 and a positioning mandrel 2, the taper type connecting disc 1 is a main body of a taper type high-precision taper key keyway device for broaching a common horizontal broaching machine, the taper type connecting disc 1 is used for connecting the horizontal broaching machine and the positioning mandrel 2, the tail end of the taper type connecting disc 1 is detachably and fixedly connected with the horizontal broaching machine, the tail end of the taper type connecting disc 1 can be set to be a cylinder a11 for interference fit with the common horizontal broaching machine, the central axis of the taper type connecting disc 1 coincides with the rotation central axis thereof, the head end face of the taper type connecting disc 1 is a plane, the plane is inclined at a certain angle α with the rotation central axis, the angle α is set according to the requirement of the taper of the required, the setting parameter range of the angle α is suitable for different taper requirements, the tail end face of the positioning mandrel 2 is a plane, the mandrel end face of the positioning mandrel 2 is abutted to the head end face of the taper type connecting disc 1, the head end face of the positioning mandrel 2, the positioning mandrel 2 is detachably and fixedly connected with the head end face of the taper type connecting disc 1, the positioning device, the positioning mandrel 2 is set to be fixed to be connected with B2, the bottom end face of a groove 2, the bottom end face of a groove, the positioning device, the bottom end face of a groove, the positioning mandrel 2, the positioning tool, the positioning device, the positioning mandrel 2, the positioning spindle is set to be used for positioning tool, the bottom end face of a groove of a high-angle B groove, the positioning tool, the positioning device, the positioning tool, the bottom end of a high-angle B2, the positioning tool, the bottom end of a high-angle B-angle-B-angle drawing device, the bottom-angle drawing device, the positioning device for-angle drawing device for-angle drawing-angle.
Further, a plurality of pin holes 12 have been seted up on the head end terminal surface of inclination formula connection pad 1, outwards the salient is provided with a plurality of locating pins 22 on the tail end terminal surface of locating spindle 2, the shape, the size of locating pin 22 cooperate with shape, the size of pin hole 12 for realize the location of locating spindle 2 on inclination formula connection pad 1, locating pin 22 and the cooperation of pin hole 12, guaranteed that locating spindle 2 is accurate in circumferencial direction's position, locating spindle 2 can not rotate for inclination formula connection pad 1, thereby guaranteed the uniformity of the axial inclination of locating spindle 2 and the head end terminal surface inclination of inclination formula connection pad 1, accurately passed through the axial inclination of locating spindle 2 with the terminal surface inclination of inclination formula connection pad 1, played the key effect for the accurate positioning when follow-up broaching taper key keyway.
Further, the number of the pin holes 12 in the inclined connecting disc 1 is 3, and the pin holes may be uniformly distributed on an arc with the center of the inclined connecting disc 1 as the center, and the central axis of the pin hole 12 is perpendicular to the end face of the head end of the inclined connecting disc 1.
Further, location round hole 13 has been seted up to head end terminal surface central authorities of inclination formula connection pad 1, the central axis of location round hole 13 is mutually perpendicular with the head end terminal surface of inclination formula connection pad 1, the outside salient location cylinder 23 that is provided with in tail end terminal portion central authorities of location dabber 2, location cylinder 23 and location round hole 13 interference fit play and make the radial positioning effect of location dabber 2 for inclination formula connection pad 1.
Further, the head end of the inclined connecting disc 1 is provided with a flange a14, the tail end of the positioning mandrel 2 is provided with a flange B24, the positions of the flange a14 and the flange B24 correspond to each other, and the fastening device fixedly connects the flange a14 and the flange B24 together.
The pin hole may be disposed through the flange a14, and the positioning pin 22 may be fixedly disposed on the flange B24.
The fastening device can be a fastening bolt 3, and through holes are formed in the flange A14 and the flange B24 and are matched with the fastening bolt 3 to realize the fixed connection of the flange A14 and the flange B24.
Can be provided with a plurality of through-hole A on the edge of a wing A14, can be provided with through-hole B on the edge of a wing B24, through-hole A's quantity and position and through-hole B's quantity, position one-to-one, fastening bolt 3 sets are arranged in through-hole A and through-hole B in order to realize edge of a wing A14 and edge of a wing B24's fixed, under the condition that locating pin 24 location was accomplished, rethread fastening bolt 3 is fixed, and fastening bolt 3 is together fixed with two edges of a wing, has further guaranteed inclination formula connection pad 1 and positioning core axle 2 in ascending location in week, guarantees to broach high accuracy taper key keyway device and can't rotate in week, and the degree of accuracy is higher, uses fastening bolt 3 also easy dismounting, is.
Further, the through hole A is provided with internal threads, the through hole B is provided with a counter bore and has a smooth inner wall, and the rod part of the fastening bolt 3 penetrates through the counter bore and then is in threaded connection with the through hole with the internal threads. The head of the fastening bolt 3 is sunk into the counter bore, so that the problem that the installation of a product is interfered because the head of the bolt is exposed outside the inclined plane of the large disc of the positioning core shaft 2 when the product with larger outer diameter size is encountered in work is avoided.
Furthermore, the thread of the fastening bolt 3 can adopt a coarse thread, so that the strength is high and the interchangeability is good.
Furthermore, the inclination type connecting disc 1 and the positioning mandrel 2 are made of the same material, and can be made of die steel, high-quality alloy structural steel or bearing steel.
Example two:
in the second embodiment, the pin holes are opened on the slope type connection disc 1 and the positioning mandrel 2, the pin holes may be arranged on the flange a14 and the flange B24, the number and the positions of the pin holes on the slope type connection disc 1 and the positioning mandrel 2 correspond to each other one by one (not shown in the figure), and the positioning pins penetrate through the pin holes of the slope type connection disc 1 and the positioning mandrel 2 and are in interference fit with each other, so that the slope type connection disc 1 and the positioning mandrel 2 are positioned in the circumferential direction, and the alignment accuracy and the stability between the slope type connection disc 1 and the positioning mandrel 2 are. Other structures are the same as those of the first embodiment, and are not described herein again.
The taper key groove broaching device is simple in structure, processed products are high in precision, products with different slopes and different sizes and with taper key grooves can be processed only by replacing the slope type connecting disc with the head end face and the rotary central line at different angles, and the universality is strong.
The above is the embodiment of the present invention, not the limitation of the patent scope of the present invention, all the equivalent structures or equivalent processes that the contents of the specification and the drawings are used for conversion, or directly or indirectly applied to other related technical fields, all the same principles are included in the patent protection scope of the present invention.
Claims (6)
1. A high-precision taper key groove broaching device is characterized by comprising an inclination type connecting disc and a positioning mandrel, wherein the inclination type connecting disc is used for connecting a horizontal broaching machine and the positioning mandrel, the tail end of the inclination type connecting disc is detachably and fixedly connected with the horizontal broaching machine, the central axis of the inclination type connecting disc is superposed with the rotation central line of the inclination type connecting disc, the head end face of the inclination type connecting disc is a plane, the plane is inclined at a certain angle α with the rotation central line, the angle α is set according to the inclination requirement of a required key groove, the tail end face of the positioning mandrel is a plane, the tail end face of the positioning mandrel is abutted against the head end face of the inclination type connecting disc, the two end faces are detachably and fixedly connected through a fastening device, the head end of the positioning mandrel is set to be a cylinder B, the cylinder B and the positioning mandrel are coaxially arranged for positioning and installing a product needing broaching for broaching the taper key groove, the central axis of the cylinder B is perpendicular to the tail end face of the positioning mandrel, the positioning mandrel and the groove is communicated with the groove, the groove is used for positioning the broaching tool in the broaching process of a common standard broach in the process, the taper key groove, the groove is strictly matched with the rotation central axis of the bottom face of the cutter body, and the size of the groove of the cutter body α, and the size of the rotation central line of the cutter body is.
2. The high precision tapered key groove broaching device according to claim 1, wherein: the positioning core shaft is characterized in that a plurality of pin holes are formed in the end face of the head end of the inclination type connecting disc, a plurality of positioning pins are arranged on the end face of the tail end of the positioning core shaft in an outwards protruding mode, and the shapes and the sizes of the positioning pins are matched with those of the pin holes and used for achieving positioning of the positioning core shaft on the inclination type connecting disc.
3. The high precision tapered key groove broaching device according to claim 1, wherein: the inclination type connecting disc and the positioning core shaft are all provided with the same number of pin holes in a penetrating mode, the pin holes in the inclination type connecting disc and the positioning core shaft correspond to each other in a one-to-one mode in position, positioning pins can be detachably arranged in the pin holes, and the positioning pins are in interference fit with the pin holes.
4. The high precision tapered key groove broaching device according to claim 3, wherein: the number of the pin holes on the inclined connecting disc is 2-10.
5. The high-precision tapered key groove broaching device according to claim 1 or 2, wherein: the center of the head end face of the inclination type connecting disc is provided with a positioning round hole, the central axis of the positioning round hole is perpendicular to the head end face of the inclination type connecting disc, the center of the tail end portion of the positioning mandrel is provided with a positioning cylinder in an outwards protruding mode, and the positioning cylinder is in interference fit with the positioning round hole.
6. The high precision tapered key groove broaching device according to claim 1, wherein: the inclination type connecting disc is made of the same material as the positioning mandrel, and can be made of die steel, high-quality alloy structural steel or bearing steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921643395.1U CN211162169U (en) | 2019-09-29 | 2019-09-29 | High-precision taper key groove broaching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921643395.1U CN211162169U (en) | 2019-09-29 | 2019-09-29 | High-precision taper key groove broaching device |
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| Publication Number | Publication Date |
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| CN211162169U true CN211162169U (en) | 2020-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921643395.1U Active CN211162169U (en) | 2019-09-29 | 2019-09-29 | High-precision taper key groove broaching device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110587022A (en) * | 2019-09-29 | 2019-12-20 | 青岛征和链传动有限公司 | High-precision taper key groove broaching device |
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2019
- 2019-09-29 CN CN201921643395.1U patent/CN211162169U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110587022A (en) * | 2019-09-29 | 2019-12-20 | 青岛征和链传动有限公司 | High-precision taper key groove broaching device |
| CN110587022B (en) * | 2019-09-29 | 2024-03-26 | 青岛征和链传动有限公司 | High-precision inclined key groove broaching device |
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