CN111618739A - Cylindrical grinding clamp for rotor shaft of high-power impact-resistant motor and using method of cylindrical grinding clamp - Google Patents
Cylindrical grinding clamp for rotor shaft of high-power impact-resistant motor and using method of cylindrical grinding clamp Download PDFInfo
- Publication number
- CN111618739A CN111618739A CN202010477376.7A CN202010477376A CN111618739A CN 111618739 A CN111618739 A CN 111618739A CN 202010477376 A CN202010477376 A CN 202010477376A CN 111618739 A CN111618739 A CN 111618739A
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- Prior art keywords
- rotor shaft
- chuck
- connecting block
- clamping block
- clamping
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
- B24B41/061—Work supports, e.g. adjustable steadies axially supporting turning workpieces, e.g. magnetically, pneumatically
- B24B41/062—Work supports, e.g. adjustable steadies axially supporting turning workpieces, e.g. magnetically, pneumatically between centres; Dogs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
- B24B5/04—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces externally
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/35—Accessories
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
The invention discloses an excircle grinding clamp of a high-power impact-resistant motor rotor shaft and a using method thereof, wherein the excircle grinding clamp comprises a connecting block, a clamping block and a chuck; the connecting block and the clamping block are arranged in parallel, and an elastic mechanism is connected between the connecting block and the clamping block; the clamping head is detachably connected to the clamping block, an annular hole is formed in the clamping head, and at least two convex teeth are arranged on the inner annular surface of the annular hole; the connecting block, the clamping block and the chuck are all in a circular ring shape and are concentrically arranged, and a plurality of mounting holes are formed in the connecting block; the elastic mechanism comprises a screw and a spring, a stepped hole is formed in the clamping block, and a threaded hole is formed in the connecting block. When the grinding machine is used, the hobbing at the end part of the motor rotor shaft is inserted into the chuck, so that the hobbing is meshed with the convex teeth on the chuck, and the chuck drives the motor rotor shaft to synchronously rotate during grinding, so that the grinding machine is convenient to clamp, and the hobbing is not easy to damage, and the product quality is ensured.
Description
Technical Field
The invention relates to the technical field of machining, in particular to an outer circle grinding clamp of a rotor shaft of a high-power impact-resistant motor and a using method of the outer circle grinding clamp.
Background
At present, with the wide application of the motor, the motor has more and more irreplaceable functions in various industries. But because the application range is enlarged, the phenomenon of motor damage often occurs under the conditions of improper use or severe environment; the traditional motor rotor shaft has large volume and heavy mass, and the working efficiency is difficult to improve during working; meanwhile, the induction current which is unreasonably designed influences the rotation balance of the motor, so that the motor is poor in working stability and high in noise. Therefore, a high-power impact-resistant motor rotor shaft appears in the market, as shown in fig. 1, a gear hobbing 102 is arranged at one end of a shaft body 101 of the motor rotor shaft 1, and a connecting shaft head 103 is arranged at the other end of the shaft body, so that the problems of large weight, large rotational inertia, large noise, low dynamic response speed and the like of the existing motor rotor shaft are solved, and the service life of the motor is prolonged.
However, in the prior art, when the novel high-power impact-resistant motor rotor shaft grinds the outer circumferential surface of the shaft body, the novel high-power impact-resistant motor rotor shaft is clamped by a traditional clamp (such as a three-jaw chuck), so that the clamping is troublesome, the processing efficiency is reduced, and the hobbing on the motor rotor shaft is damaged to influence the product quality.
Therefore, it is necessary to invent a cylindrical grinding fixture for a high-power impact-resistant motor rotor shaft and a using method thereof to solve the above problems.
Disclosure of Invention
The invention aims to provide an excircle grinding clamp of a high-power impact-resistant motor rotor shaft and a using method thereof.
In order to achieve the purpose, the invention provides the following technical scheme:
an excircle grinding clamp of a high-power impact-resistant motor rotor shaft and a using method thereof comprise a connecting block, a clamping block and a chuck; the connecting block and the clamping block are arranged in parallel, and an elastic mechanism is connected between the connecting block and the clamping block; the chuck is detachably connected to the clamping block, an annular hole is formed in the chuck, and at least two convex teeth are arranged on the inner annular surface of the annular hole.
The invention has the further improvement scheme that the connecting block, the clamping block and the chuck are all in a circular ring shape, the connecting block, the clamping block and the chuck are concentrically arranged, and the connecting block is provided with a plurality of mounting holes.
The invention has the further improvement scheme that the elastic mechanism comprises a screw and a spring, a stepped hole is arranged on the clamping block, a threaded hole is arranged on the connecting block, the screw penetrates through the stepped hole and is connected with the threaded hole, and the spring is sleeved outside the screw between the connecting block and the clamping block.
In a further improvement of the invention, a through clamping hole is arranged between the outer ring surface and the inner ring surface of the clamping block, and a fastener passes through the clamping hole and locks the chuck at the center of the clamping block.
The invention has the further improvement scheme that the convex teeth are in a frustum structure, the tooth tips of the convex teeth face to the center of the chuck, and a front conical surface is arranged between the inner ring surface where the convex teeth are located and the front end surface of the chuck.
In a further improvement of the invention, the teeth are arranged in an annular array on the inner circumferential surface of the chuck.
In a further development of the invention, the spring means are arranged in an annular array between the connecting block and the clamping block.
In a further improvement of the invention, the clamping block is provided with a plurality of lightening holes.
In a further improvement of the invention, the lightening holes and the elastic mechanism are arranged in a staggered manner at intervals.
The invention has the further improvement scheme that a rear conical surface is arranged between the inner ring surface where the convex teeth are positioned and the rear end surface of the chuck.
The using method of the invention is as follows:
firstly, during installation, connecting the connecting block with a flange plate at the front end of a main shaft of the grinding machine by using bolts or inner hexagonal countersunk head screws, wherein a chuck of a front tip is just positioned at a rear conical surface, and the chuck, the front tip and a rear tip on a tailstock are concentric;
secondly, during clamping, the hobbing end of the motor rotor shaft is inserted into the chuck manually or through a manipulator, the hobbing is meshed with the convex teeth, and the tip of the front center props against the hobbing end of the motor rotor shaft; then the rear center on the tailstock extends out, and the tip of the rear center props against the end of the connecting shaft of the motor rotor shaft to finish the installation of the clamp;
thirdly, during machining, a motor of the spindle box is started, the clamp rotates along with the spindle, the motor rotor shaft rotates along with the clamp, and a grinding mechanism of the grinding machine grinds the outer circular surface of the shaft body of the motor rotor shaft;
fourthly, after grinding, the rear center retracts, the motor rotor shaft is taken down manually or through a manipulator, the next motor rotor shaft is installed, and the process is repeated.
The invention has the further improvement that the front centre and the rear centre are both fixed centres which cannot rotate.
The invention has the further improvement scheme that the grinding machine is a common grinding machine or a numerical control machine.
The invention has the beneficial effects that:
firstly, according to the excircle grinding clamp for the high-power impact-resistant motor rotor shaft and the using method of the excircle grinding clamp, the hobbing at the end part of the motor rotor shaft is inserted into the chuck, so that the hobbing is meshed with the convex teeth on the chuck, and the chuck drives the motor rotor shaft to synchronously rotate during grinding, so that the clamp is convenient to clamp, the hobbing is not easy to damage through processing efficiency, and the product quality is ensured.
Secondly, according to the cylindrical grinding fixture for the rotor shaft of the high-power impact-resistant motor and the use method of the cylindrical grinding fixture, a plurality of mounting holes are formed in the connecting block, so that the grinding fixture can be conveniently connected with a spindle box of a grinding machine.
Thirdly, according to the excircle grinding clamp for the high-power impact-resistant motor rotor shaft and the using method thereof, the chuck is locked at the center of the clamping block through the fastening piece, so that the chuck can be conveniently replaced according to different sizes of the motor rotor shaft.
Fourthly, the outer circle grinding clamp for the high-power impact-resistant motor rotor shaft and the use method thereof are in a frustum structure, and the tooth tips of the convex teeth face to the center of the chuck, so that the gear hobbing of the motor rotor shaft can be conveniently meshed with the convex teeth, and the root parts of the convex teeth are not easy to break.
Fifthly, according to the excircle grinding clamp for the high-power impact-resistant motor rotor shaft and the using method of the excircle grinding clamp, an elastic mechanism is arranged between the connecting block and the clamping block, so that the motor rotor shaft is prevented from generating hard impact on the chuck, and the motor rotor shaft and the chuck are protected.
Sixthly, according to the excircle grinding clamp for the high-power impact-resistant motor rotor shaft and the using method of the excircle grinding clamp, a front conical surface is arranged between the inner ring surface where the convex teeth are located and the front end surface of the chuck, so that the motor rotor shaft is prevented from interfering with the chuck when being inserted into the chuck.
Seventh, according to the cylindrical grinding fixture for the high-power impact-resistant motor rotor shaft and the use method thereof, the elastic mechanisms are arranged between the connecting block and the clamping block in an annular array manner, so that the overall stability of the fixture during rotation is ensured, and the motor rotor shaft is not prone to jumping.
Eighth, according to the cylindrical grinding fixture for the rotor shaft of the high-power impact-resistant motor and the use method thereof, the clamping block is provided with the plurality of lightening holes, so that the overall weight of the fixture is lightened, the load of a motor of a spindle box of the grinding machine is reduced, the service life of the grinding machine is prolonged, meanwhile, the energy consumption is reduced, and the enterprise cost is reduced.
Ninth, according to the external circle grinding fixture for the high-power impact-resistant motor rotor shaft and the use method of the external circle grinding fixture, a rear conical surface is arranged between the inner ring surface where the convex teeth are located and the rear end surface of the chuck, and the rear conical surface provides a space for the front tip, so that the front tip and the rear tip of the motor rotor shaft are further guaranteed to be not prone to jumping during grinding.
Drawings
Fig. 1 is a schematic structural view of a rotor shaft of an electric machine.
Fig. 2 is a schematic view of the overall structure of the present invention.
Fig. 3 and 4 are schematic views of the chuck structure of the present invention.
Fig. 5 is a schematic structural view of the present invention in a use state.
In the figure: 1-water storage tank, 101-shaft body, 102-hobbing, 103-connecting shaft head, 2-connecting block, 201-mounting hole body, 202-threaded hole, 3-clamping block, 301-stepped hole, 302-clamping hole, 303-lightening hole, 4-clamping head, 401-convex tooth, 402-front conical surface, 403-rear conical surface, 5-elastic mechanism, 501-screw, 502-spring, 6-grinding machine, 601-spindle box, 602-motor, 603-front tip, 604-tailstock, 605-rear tip and 606-grinding mechanism.
Detailed Description
The invention is further elucidated with reference to the drawings and the embodiments.
Example 1: as shown in fig. 2-5, an external grinding fixture for a rotor shaft of a high-power impact-resistant motor and a use method thereof comprise a connecting block 2, a clamping block 3 and a clamping head 4; the connecting block 2 and the clamping block 3 are arranged in parallel, and four groups of elastic mechanisms 5 are connected between the connecting block 2 and the clamping block 3; the chuck 4 is detachably connected to the clamping block 3, an annular hole is formed in the chuck 4, and five convex teeth 401 are arranged on the inner annular surface of the annular hole; the connecting block 2, the clamping block 3 and the chuck 4 are all in a circular ring shape, the connecting block 2, the clamping block 3 and the chuck 4 are concentrically arranged, and the connecting block 2 is provided with a plurality of five mounting holes 201; the elastic mechanism 5 comprises a screw 501 and a spring 502, a stepped hole 301 is formed in the clamping block 3, a threaded hole 202 is formed in the connecting block 2, the screw 501 penetrates through the stepped hole 301 and is connected with the threaded hole 202, and the spring 502 is sleeved on the outer side of the screw 501 between the connecting block 2 and the clamping block 3; a through clamping hole 302 is formed between the outer ring surface and the inner ring surface of the clamping block 3, and a fastener penetrates through the clamping hole 302 and locks the chuck 4 at the center of the clamping block 3; in this embodiment, the fastener is a socket head cap screw; the convex teeth 401 are in a frustum structure, the tooth tips of the convex teeth 401 face the center of the chuck 4, and a front conical surface 402 is arranged between the inner annular surface where the convex teeth 401 are located and the front end surface of the chuck 4; the convex teeth 401 are arranged on the inner ring surface of the chuck 4 in an annular array; the elastic mechanisms 5 are arranged between the connecting block 2 and the clamping block 3 in an annular array; four lightening holes 303 are formed in the clamping block 3; the lightening holes 303 and the elastic mechanisms 5 are arranged in a staggered mode at intervals; a rear conical surface 403 is arranged between the inner annular surface where the convex teeth 401 are located and the rear end surface of the chuck 4.
Example 2: the embodiment is an application of the cylindrical grinding clamp for the rotor shaft of the high-power impact-resistant motor in embodiment 1, and the specific use method is as follows:
firstly, during installation, the connecting block 2 is connected with a flange plate at the front end of a main shaft of the grinding machine 6 by using bolts or inner hexagonal countersunk head screws, a chuck 4 of a front tip 603 is just positioned at a rear conical surface 403, and the chuck 4, the front tip 603 and a rear tip 605 on a tail seat 604 are concentric;
secondly, during clamping, the hobbing 102 end of the motor rotor shaft 1 is inserted into the chuck 4 manually or through a manipulator, the hobbing 102 is meshed with the convex teeth 401, and the tip of the front tip 603 props against the hobbing 102 end of the motor rotor shaft 1; then, a rear center 605 on the tailstock 604 extends out, and the tip of the rear center props against the end of the connecting shaft head 103 of the motor rotor shaft 1 to finish the installation of the clamp;
thirdly, during machining, a motor 602 of the spindle box 601 is started, the clamp rotates along with the spindle, the motor rotor shaft 1 rotates along with the clamp, and a grinding mechanism 606 of the grinding machine 6 grinds the outer circular surface of the shaft body 101 of the motor rotor shaft 1;
fourthly, after grinding, the rear center 605 retracts, the motor rotor shaft 1 is taken down manually or through a mechanical arm, the next motor rotor shaft 1 is installed, and the process is repeated.
It should be noted that the front center 603 and the rear center 605 are both fixed centers that cannot rotate, and in addition, the grinding machine 6 is a numerically controlled grinding machine, which is a common device in the prior art, and how to grind the grinding mechanism 606 is not specifically described here.
The above embodiments are merely illustrative of the technical concepts and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (10)
1. The utility model provides an excircle grinding anchor clamps of high-power shock-resistant motor rotor shaft which characterized in that: comprises a connecting block (2), a clamping block (3) and a clamping head (4); the connecting block (2) and the clamping block (3) are arranged in parallel, and an elastic mechanism (5) is connected between the connecting block (2) and the clamping block (3); the clamping head (4) is detachably connected to the clamping block (3), an annular hole is formed in the clamping head (4), and at least two convex teeth (401) are arranged on the inner annular surface of the annular hole.
2. The cylindrical grinding fixture for the rotor shaft of the high-power impact-resistant motor as claimed in claim 1, wherein: connecting block (2), press from both sides tight piece (3) and chuck (4) and all be the ring form, and connecting block (2), press from both sides tight piece (3) and chuck (4) and set up with one heart, are equipped with a plurality of mounting hole (201) on connecting block (2).
3. The cylindrical grinding fixture for the rotor shaft of the high-power impact-resistant motor as claimed in claim 2, wherein: the elastic mechanism (5) comprises a screw (501) and a spring (502), a stepped hole (301) is formed in the clamping block (3), a threaded hole (202) is formed in the connecting block (2), the screw (501) penetrates through the stepped hole (301) and is connected with the threaded hole (202), and the spring (502) is sleeved on the outer side of the screw (501) between the connecting block (2) and the clamping block (3); the elastic mechanisms (5) are arranged between the connecting block (2) and the clamping block (3) in an annular array.
4. The cylindrical grinding fixture for the rotor shaft of the high-power impact-resistant motor as claimed in claim 2, wherein: and a through clamping hole (302) is formed between the outer ring surface and the inner ring surface of the clamping block (3), and a fastener penetrates through the clamping hole (302) and locks the chuck (4) at the center of the clamping block (3).
5. The cylindrical grinding fixture for the rotor shaft of the high-power impact-resistant motor according to claim 4, characterized in that: the convex teeth (401) are arranged on the inner ring surface of the chuck (4) in an annular array mode, the convex teeth (401) are of a frustum-shaped structure, the tooth tips of the convex teeth (401) face the center of the chuck (4), and a front conical surface (402) is arranged between the inner ring surface where the convex teeth (401) are located and the front end surface of the chuck (4).
6. The cylindrical grinding fixture for the rotor shaft of the high-power impact-resistant motor according to claim 4, characterized in that: the clamping block (3) is provided with a plurality of lightening holes (303), and the lightening holes (303) and the elastic mechanism (5) are arranged in a staggered mode at intervals.
7. The cylindrical grinding fixture for the rotor shaft of the high-power impact-resistant motor according to claim 5, characterized in that: and a rear conical surface (403) is arranged between the inner ring surface where the convex teeth (401) are located and the rear end surface of the chuck (4).
8. Use method of the cylindrical grinding clamp for the rotor shaft of the high-power impact-resistant motor according to any one of claims 1 to 7, characterized by comprising the following steps:
firstly, during installation, a connecting block (2) is connected with a flange plate at the front end of a main shaft of a grinding machine (6) by using bolts or inner hexagonal countersunk head screws, a chuck (4) of a front tip (603) is just positioned at a rear conical surface (403), and the chuck (4), the front tip (603) and a rear tip (605) on a tail seat (604) are concentric;
secondly, during clamping, the hobbing (102) end of the motor rotor shaft (1) is inserted into the chuck (4) manually or through a manipulator, the hobbing (102) is meshed with the convex teeth (401), and the tip of the front tip (603) abuts against the hobbing (102) end of the motor rotor shaft (1); then a rear center (605) on the tailstock (604) extends out, and the pointed end of the rear center props against the end of the connecting shaft head (103) of the motor rotor shaft (1) to finish the installation of the clamp;
thirdly, during machining, a motor (602) of the spindle box (601) is started, the clamp rotates along with the spindle of the spindle box (601), the motor rotor shaft (1) rotates along with the clamp, and a grinding mechanism (606) of the grinding machine (6) grinds the outer circular surface of a shaft body (101) of the motor rotor shaft (1);
fourthly, after grinding, the rear center (605) retracts, the motor rotor shaft (1) is taken down manually or through a mechanical arm, the next motor rotor shaft (1) is installed, and the process is repeated.
9. The use method of the cylindrical grinding clamp for the rotor shaft of the high-power impact-resistant motor according to claim 8 is characterized in that: the front center (603) and the rear center (605) are both fixed centers which cannot rotate.
10. The use method of the cylindrical grinding clamp for the rotor shaft of the high-power impact-resistant motor according to claim 8 is characterized in that: the grinding machine (6) is a common grinding machine or a numerical control machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010477376.7A CN111618739A (en) | 2020-05-29 | 2020-05-29 | Cylindrical grinding clamp for rotor shaft of high-power impact-resistant motor and using method of cylindrical grinding clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010477376.7A CN111618739A (en) | 2020-05-29 | 2020-05-29 | Cylindrical grinding clamp for rotor shaft of high-power impact-resistant motor and using method of cylindrical grinding clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111618739A true CN111618739A (en) | 2020-09-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010477376.7A Pending CN111618739A (en) | 2020-05-29 | 2020-05-29 | Cylindrical grinding clamp for rotor shaft of high-power impact-resistant motor and using method of cylindrical grinding clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111618739A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113814770A (en) * | 2021-09-27 | 2021-12-21 | 浙江大学台州研究院 | Non-circular workpiece driving clamp for machine tool machining |
-
2020
- 2020-05-29 CN CN202010477376.7A patent/CN111618739A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113814770A (en) * | 2021-09-27 | 2021-12-21 | 浙江大学台州研究院 | Non-circular workpiece driving clamp for machine tool machining |
| CN113814770B (en) * | 2021-09-27 | 2024-03-19 | 浙江大学台州研究院 | Non-round workpiece driving clamp for machine tool machining |
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