CN114309691A - Chuck for realizing radial clamping based on joint bearing - Google Patents
Chuck for realizing radial clamping based on joint bearing Download PDFInfo
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- CN114309691A CN114309691A CN202210178235.4A CN202210178235A CN114309691A CN 114309691 A CN114309691 A CN 114309691A CN 202210178235 A CN202210178235 A CN 202210178235A CN 114309691 A CN114309691 A CN 114309691A
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Abstract
The invention discloses a chuck for realizing radial clamping based on a joint bearing, which comprises a chuck body, wherein the chuck body is provided with a mounting disk, the side periphery of the mounting disk is provided with a plurality of embedding grooves, the embedding grooves are provided with the joint bearing, the mounting disk is provided with a gland at the upper side of the joint bearing, the joint bearing is provided with a clamping shaft, the clamping shaft is provided with a clamping jaw, the clamping shaft is connected with a fixed seat, the center of the mounting disk is provided with a fixed groove, the fixed groove is provided with a sliding plate, the center of the sliding plate is connected with a mandrel, the mandrel is provided with a conical push plate, the fixed groove is provided with a centering sleeve at the outer side of the sliding plate, the periphery of the centering sleeve is provided with a plurality of accommodating grooves, the accommodating grooves are provided with pressing blocks, the chuck body is provided with a main shaft connecting plate, the main shaft connecting plate is provided with a positioning disk, the positioning disk is provided with a positioning shaft, the mounting shaft is provided with a push rod, the periphery of the positioning shaft is connected with a plurality of inclined blocks, the positioning shaft is provided with a cavity, the cavity is connected with a push block in a sliding mode, the push block is fixedly connected with a push rod, and the push rod is connected with the mandrel.
Description
Technical Field
The invention belongs to the technical field of chucks, and particularly relates to a chuck for realizing radial clamping based on a joint bearing.
Background
Chucks are mechanical devices used to clamp workpieces on machine tools. The machine tool accessory clamps and positions a workpiece by utilizing the radial movement of movable clamping jaws uniformly distributed on a chuck body. The chuck generally comprises a chuck body, a movable clamping jaw and a clamping jaw driving mechanism 3, and is connected with the end part of a main shaft of a machine tool directly or through a flange plate. The chuck is installed usually at the lathe, use on cylindrical grinder and the internal grinder, also can cooperate with various indexing means, be used for on milling machine and the drilling machine, but current domestic chuck is because the restriction of clamping technique and structure, add man-hour at chuck clamping axle class part, the concentric precision of the axle class part that makes the clamping easily appears the deviation, the part that leads to processing out produces the error easily, thereby lead to the part to scrap, and current chuck is usually only simple to carry out the clamping to the surface of axle class part, because such clamping-holding power is not enough, add the gliding phenomenon of axle class part appearance easily in man-hour, thereby influence processing.
Disclosure of Invention
In view of the problems raised by the above background art, the present invention is directed to: aims to provide a chuck for realizing radial clamping based on a joint bearing.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:
a chuck for realizing radial clamping based on a joint bearing comprises a chuck body, wherein the chuck body is a cylinder with openings arranged at the upper side and the lower side of the inside of the chuck body, a mounting disc is mounted at the top of the chuck body, a plurality of embedding grooves are formed in the periphery of the inner side of the mounting disc and are uniformly arranged on the mounting disc in a triangular mode, the joint bearing is mounted in the embedding grooves, a gland is mounted on the upper side of the joint bearing by the mounting disc and is fixedly mounted on the mounting disc, a clamping shaft is mounted in the joint bearing, a clamping jaw is mounted at the top of the clamping shaft, a fixing seat is connected to the bottom of the clamping shaft, an extrusion inclined plane is arranged on one side of the bottom of the fixing seat, an inner groove is formed in the other side of the bottom of the fixing seat, a supporting spring is mounted in the inner groove, a positioning column is connected to the free end of the supporting spring, and a fixing groove is formed in the center of the top of the mounting disc, the sliding plate is installed in the fixing groove, the center of the sliding plate is connected with a mandrel, the sliding plate and the mandrel are arranged in an integrated structure, the bottom of the mandrel penetrates through the installation disc and extends to the lower side of the installation disc, the top of the mandrel is provided with a conical push plate, the fixing groove is provided with a centering sleeve outside the sliding plate, the centering sleeve is provided with a sliding groove matched with the sliding plate, the top of the sliding groove is provided with a reset spring, the free end of the reset spring is installed on the sliding plate, the periphery of the top of the centering sleeve is provided with a plurality of accommodating grooves, the accommodating grooves are uniformly distributed on the centering sleeve in a cross shape, a pressing block is installed in the accommodating grooves, the inner side of the pressing block is provided with a conical surface matched with the conical push plate, the bottom of the disc body is provided with a main shaft connection disc, a positioning disc is installed in the main shaft connection disc, and a positioning shaft is installed in the positioning disc, the utility model discloses a location epaxial extrusion inclined plane, including location axle, location epaxial portion, including location epaxial portion, the push rod is installed to the installation, location epaxial portion border is connected with a plurality of sloping blocks, and is a plurality of the even arrangement of sloping block is epaxial and corresponding with upside extrusion inclined plane, the location is epaxial to be equipped with the cavity, sliding connection has the ejector pad in the cavity, the top at the installation axle is placed to the ejector pad, ejector pad top fixedly connected with ejector pin, the top of ejector pin is connected with the bottom of dabber.
Further inject, the uide bushing is installed to the mounting disc bottom, the bottom of uide bushing runs through the location axle and extends to in its cavity, the uide bushing bottom is connected with spacing dish, spacing dish slidable mounting is in the cavity. The structure design has the effect of auxiliary guide sliding, and the movement is more stable.
Further limiting, a guide groove matched with the ejector rod and the mandrel is formed in the guide sleeve, and the ejector rod and the mandrel are slidably mounted in the guide groove. The structural design plays a role in guiding the ejector rod and the mandrel, and the ejector rod and the mandrel can be prevented from being broken.
Further inject, location axle bottom is equipped with indent thread groove, the surface of installation axle is equipped with the external screw thread with indent thread groove assorted, the installation axle passes through screw thread locking and installs the bottom at the location axle. Such structural design is easy to install and connect.
Further limited, the outer side of the pressing block is provided with anti-skid grains. The structure design makes the clamping more fixed.
Further inject, the apron is installed at centering sleeve top, the apron bottom is connected with auxiliary spring, auxiliary spring's free end is installed at the top of dabber. Such a structural design provides an effect of assisting the reset.
Further limit, the tip of reference column is wear-resisting type bulb structure setting. The structural design enables the service life of the positioning column to be longer.
Further inject, chucking shaft top one side is equipped with the mounting groove, one side of mounting groove is equipped with keeps away the dead slot, it is the arc structure setting to keep away the dead slot, the mounting groove bottom is equipped with the constant head tank, install the location inserted block in the constant head tank, location inserted block fixed mounting is in the bottom of centre gripping jack catch. The clamping jaw is convenient to mount, fix, dismount and replace due to the structural design.
Further, the clamping jaw is locked and installed in the installation groove on the clamping shaft through a screw. The structural design makes the installation more stable.
Further limit, the ejector pin passes through screw rod locking connection with the dabber. Such a structural design makes the connection more secure.
The invention has the beneficial effects that: the invention can push the clamping jaw and the pressing block to fix the workpiece inside and outside by pushing the push rod, thereby facilitating the processing, preventing the shaft parts from sliding easily during the processing without influencing the processing, forming a stroke in the radial direction by rotating the joint bearing to clamp the workpiece, realizing high concentricity and ensuring the processing precision.
Drawings
The invention is further illustrated by the non-limiting examples given in the accompanying drawings;
FIG. 1 is a schematic structural diagram of a chuck for achieving radial clamping based on a spherical plain bearing according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a chuck for radial clamping based on a spherical plain bearing according to an embodiment of the present invention;
FIG. 3 is a schematic view of an internal structure of a chuck for radial clamping based on a spherical plain bearing according to an embodiment of the present invention;
FIG. 4 is a schematic view of a clamping jaw structure of a chuck for achieving radial clamping based on a joint bearing according to an embodiment of the present invention;
the main element symbols are as follows:
the clamping device comprises a disc body 1, a mounting disc 2, a joint bearing 3, a gland 4, a clamping shaft 5, a clamping jaw 6, a fixed seat 7, an inner groove 8, a supporting spring 9, a positioning column 10, a sliding plate 11, a core shaft 12, a conical push plate 13, a centering sleeve 14, a sliding groove 15, a return spring 16, a main shaft connecting disc 17, a positioning disc 18, a positioning shaft 19, a mounting shaft 20, a push rod 21, an inclined block 22, a cavity 23, a push block 24, an ejector rod 25, a guide sleeve 26, a limiting disc 27, a pressing block 28, a cover plate 29, an auxiliary spring 30, a mounting groove 31, an empty avoiding groove 32, a positioning groove 33 and a positioning insertion block 34.
Detailed Description
In order that those skilled in the art can better understand the present invention, the following technical solutions are further described with reference to the accompanying drawings and examples.
As shown in fig. 1-4, the chuck for realizing radial clamping based on the joint bearing of the invention comprises a chuck body 1 which is a cylinder with openings at the upper and lower sides and is hollowed out, a mounting disc 2 is arranged at the top of the chuck body 1, a plurality of embedding grooves are arranged on the inner periphery of the mounting disc 2, the embedding grooves are uniformly arranged on the mounting disc 2 in a triangular shape, the joint bearing 3 is arranged in the embedding grooves, a gland 4 is arranged on the upper side of the joint bearing 3 of the mounting disc 2, the gland 4 is fixedly arranged on the mounting disc 2, a clamping shaft 5 is arranged in the joint bearing 3, clamping claws 6 are arranged at the top of the clamping shaft 5, a fixed seat 7 is connected to the bottom of the clamping shaft 5, an extrusion inclined surface is arranged on one side of the bottom of the fixed seat 7, an inner groove 8 is arranged on the other side of the bottom of the fixed seat 7, a support spring 9 is arranged in the inner groove 8, and the free end of the support spring 9 is connected with a positioning column 10, the center of the top of the mounting disc 2 is provided with a fixed groove, a sliding plate 11 is arranged in the fixed groove, the center of the sliding plate 11 is connected with a mandrel 12, the sliding plate 11 and the mandrel 12 are arranged in an integrated structure, the bottom of the mandrel 12 penetrates through the mounting disc 2 and extends to the lower side of the mounting disc, the top of the mandrel 12 is provided with a conical push plate 13, the fixed groove is provided with a centering sleeve 14 on the outer side of the sliding plate 11, the centering sleeve 14 is provided with a sliding groove 15 matched with the sliding plate 11, the top of the sliding groove 15 is provided with a return spring 16, the free end of the return spring 16 is arranged on the sliding plate 11, the periphery of the top of the centering sleeve 14 is provided with a plurality of accommodating grooves, the accommodating grooves are uniformly distributed on the centering sleeve 14 in a cross shape, a pressing block 28 is arranged in the accommodating grooves, the inner side of the pressing block 28 is provided with a conical surface matched with the conical push plate 13, the bottom of the disc body 1 is provided with a main shaft connecting disc 17, a positioning disc 18 is arranged in the main shaft connecting disc 17, and a positioning shaft 19 is arranged in the positioning disc 18, the bottom of the positioning shaft 19 is connected with an installation shaft 20, a push rod 21 is installed in the installation shaft 20, the periphery of the top of the positioning shaft 19 is connected with a plurality of inclined blocks 22, the inclined blocks 22 are uniformly arranged on the positioning shaft 19 and correspond to the upper side extrusion inclined plane, a cavity 23 is formed in the positioning shaft 19, a push block 24 is connected in the cavity 23 in a sliding mode, the push block 24 is placed at the top of the installation shaft 20, the top of the push block 24 is fixedly connected with a push rod 25, and the top of the push rod 25 is connected with the bottom of the mandrel 12.
In this embodiment, when in use, the spindle connecting disc 17 is first installed on a high-speed precision machine tool, so that the push rod 21 is connected to the power end of the high-speed precision machine tool, then a workpiece to be processed is placed on the centering sleeve 14, the push rod 21 is pushed by controlling the power end of the precision machine tool, so that the push rod 21 pushes the installation shaft 20, the installation shaft 20 pushes the positioning shaft 19 and the push block 24, so that the positioning shaft 19 drives the inclined block 22 to move towards the fixed seat 7, until the inclined block 22 contacts with the extrusion inclined surface of the fixed seat 7, so that the inclined block 22 pushes the fixed seat 7 by extruding the extrusion inclined surface, so that the fixed seat 7 drives the clamping shaft 5 to perform an inclined rotation motion under the action of the joint bearing 3, a stroke is formed in the radial direction, so that the clamping jaw 6 clamps the workpiece, and the fixed seat 7 extrudes the supporting spring 9 after being stressed, so that the supporting spring 9 generates a rebound force to act on the positioning column 10 and the fixed seat 7, make reference column 10 hug closely at the inner wall of disk body 1, and fixing base 7 then hugs closely on sloping block 22, ejector pin 25 is promoted to ejector pad 24 simultaneously, make ejector pin 25 promote dabber 12, make dabber 12 drive slide 11 and remove, make slide 11 extrude reset spring 16, make reset spring 16 atress compressive deformation, and dabber 12 promotes toper push pedal 13 simultaneously, toper push pedal 13 then promotes briquetting 28, make briquetting 28 stretch out centering sleeve 14, and fix the work piece inner wall, thereby fix the inside and outside of work piece, conveniently process.
Preferably, the bottom of the mounting disc 2 is provided with a guide sleeve 26, the bottom of the guide sleeve 26 penetrates through the positioning shaft 19 and extends into the cavity 23 of the positioning shaft, the bottom of the guide sleeve 26 is connected with a limiting disc 27, and the limiting disc 27 is slidably mounted in the cavity 23. The structure design has the effect of auxiliary guide sliding, and the movement is more stable. In fact, other configurations of the guide sleeve 26 are contemplated as appropriate.
Preferably, a guide groove matched with the mandril 25 and the mandrel 12 is arranged in the guide sleeve 26, and the mandril 25 and the mandrel 12 are slidably arranged in the guide groove. Such a structural design serves as a guide for the carrier rod 25 and the mandrel 12, and can prevent the carrier rod 25 and the mandrel 12 from being broken. In fact, other protective guide configurations for the guide sleeve 26 are contemplated as appropriate.
Preferably, the bottom of the positioning shaft 19 is provided with an inner concave thread groove, the outer surface of the mounting shaft 20 is provided with an external thread matched with the inner concave thread groove, and the mounting shaft 20 is mounted at the bottom of the positioning shaft 19 through thread locking. Such structural design is easy to install and connect. In fact, other mounting configurations for the mounting shaft 20 are contemplated as appropriate.
Preferably, the outer side of the pressing block 28 is provided with anti-slip lines. The structure design makes the clamping more fixed. In fact, other configurations of the press block 28 are contemplated as appropriate.
Preferably, a cover plate 29 is installed on the top of the centering sleeve 14, an auxiliary spring 30 is connected to the bottom of the cover plate 29, and the free end of the auxiliary spring 30 is installed on the top of the mandrel 12. Such a structural design provides an effect of assisting the reset. In fact, other shapes of the auxiliary reducing structure of the mandrel 12 may be considered as appropriate.
Preferably, the end of the positioning column 10 is arranged in a wear-resistant ball head structure. The structural design enables the service life of the positioning column 10 to be longer. In fact, other configurations of the positioning post 10 may be used, as the case may be.
Preferably, 5 top one sides of chucking shaft are equipped with mounting groove 31, and one side of mounting groove 31 is equipped with keeps away dead slot 32, keeps away dead slot 32 and is the arc structure setting, and mounting groove 31 bottom is equipped with constant head tank 33, installs location inserted block 34 in the constant head tank 33, and location inserted block 34 fixed mounting is in the bottom of centre gripping jack catch 6. The clamping jaw 6 is convenient to mount, fix, dismount and replace due to the structural design. In fact, other mounting configurations of the holding jaws 6 can also be used, as the case may be.
The clamping jaws 6 are preferably mounted by screwing in mounting grooves 31 on the clamping shaft 5. The structural design makes the installation more stable. In practice, other fixing structures of the holding jaws 6 can also be used, as the case may be.
Preferably, the mandrel 25 is connected to the mandrel 12 by means of a screw lock. Such a structural design makes the connection more secure. In fact, other shapes of the connection structure of the mandrel 25 and the mandrel 12 can be considered according to specific situations.
The foregoing embodiments are merely illustrative of the principles of the present invention and its efficacy, and are not to be construed as limiting the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a chuck based on joint bearing realizes radial centre gripping which characterized in that: comprises a tray body (1), both sides are equipped with the open-ended cylinder about the tray body (1) is hollowed for inside, mounting disc (2) is installed at tray body (1) top, the inboard border of mounting disc (2) is equipped with a plurality of grooves of inlaying, a plurality of inlay the groove and be triangle-shaped even arranging on mounting disc (2), inlay the inslot and install joint bearing (3), gland (4) are installed to mounting disc (2) at the upside of joint bearing (3), gland (4) fixed mounting is on mounting disc (2), install chucking shaft (5) in joint bearing (3), the top installation centre gripping jack catch (6) of chucking shaft (5), chucking shaft (5) bottom is connected with fixing base (7), bottom one side of fixing base (7) is equipped with the extrusion inclined plane, the bottom opposite side of fixing base (7) is equipped with inner groovy (8), install supporting spring (9) in inner groovy (8), the free end of supporting spring (9) is connected with reference column (10), mounting disc (2) top center is equipped with the fixed slot, install slide (11) in the fixed slot, the center of slide (11) is connected with dabber (12), slide (11) and dabber (12) set up for integrated into one piece structure, dabber (12) bottom runs through mounting disc (2) and extends to its downside, toper push pedal (13) are installed at dabber (12) top, centering cover (14) are installed in the fixed slot in the outside of slide (11), centering cover (14) are equipped with spout (15) with slide (11) assorted, reset spring (16) are installed at the top of spout (15), the free end of reset spring (16) is installed on slide (11), centering sleeve (14) top border is equipped with a plurality of grooves of accomodating, and is a plurality of accomodate the groove and be the even arrangement of cross on centering sleeve (14), accomodate the inslot and install briquetting (28), the inboard of briquetting (28) is equipped with toper push pedal (13) assorted conical surface, main shaft connection pad (17) are installed to the bottom of disk body (1), install positioning disk (18) in main shaft connection pad (17), install locating shaft (19) in positioning disk (18), locating shaft (19) bottom is connected with installation axle (20), install push rod (21) in installation axle (20), locating shaft (19) top border is connected with a plurality of sloping blocks (22), and is a plurality of sloping block (22) even arrange on locating shaft (19) and corresponding with upside extrusion inclined plane, be equipped with cavity (23) in locating shaft (19), the push block (24) is connected to the cavity (23) in a sliding mode, the push block (24) is placed at the top of the mounting shaft (20), a push rod (25) is fixedly connected to the top of the push block (24), and the top of the push rod (25) is connected with the bottom of the mandrel (12).
2. The chuck for realizing radial clamping based on the spherical plain bearing as claimed in claim 1, wherein: guide sleeve (26) are installed to mounting disc (2) bottom, the bottom of guide sleeve (26) is run through locating shaft (19) and is extended to in its cavity (23), guide sleeve (26) bottom is connected with spacing dish (27), spacing dish (27) slidable mounting is in cavity (23).
3. The chuck for realizing radial clamping based on the spherical plain bearing as claimed in claim 2, wherein: the guide sleeve (26) is internally provided with a guide groove matched with the ejector rod (25) and the mandrel (12), and the ejector rod (25) and the mandrel (12) are slidably arranged in the guide groove.
4. The chuck for realizing radial clamping based on the spherical plain bearing as claimed in claim 3, wherein: the bottom of the positioning shaft (19) is provided with an inner concave thread groove, the outer surface of the mounting shaft (20) is provided with an outer thread matched with the inner concave thread groove, and the mounting shaft (20) is locked and mounted at the bottom of the positioning shaft (19) through a thread.
5. The chuck for realizing radial clamping based on the spherical plain bearing as claimed in claim 4, wherein: the outer side of the pressing block (28) is provided with anti-skid grains.
6. The chuck for realizing radial clamping based on the spherical plain bearing as claimed in claim 5, wherein: a cover plate (29) is installed at the top of the centering sleeve (14), an auxiliary spring (30) is connected to the bottom of the cover plate (29), and the free end of the auxiliary spring (30) is installed at the top of the mandrel (12).
7. The chuck for realizing radial clamping based on the spherical plain bearing as claimed in claim 6, wherein: the end part of the positioning column (10) is arranged in a wear-resistant ball head structure.
8. The chuck for realizing radial clamping based on the spherical plain bearing as claimed in claim 7, wherein: chucking axle (5) top one side is equipped with mounting groove (31), one side of mounting groove (31) is equipped with keeps away dead slot (32), keep away dead slot (32) and be the arc structure setting, mounting groove (31) bottom is equipped with constant head tank (33), install location inserted block (34) in constant head tank (33), location inserted block (34) fixed mounting is in the bottom of centre gripping jack catch (6).
9. The chuck for radial clamping based on the spherical plain bearing as claimed in claim 8, wherein: the clamping jaw (6) is installed in the installation groove (31) on the clamping shaft (5) through screw locking.
10. The chuck for radial clamping based on the spherical plain bearing as claimed in claim 9, wherein: the ejector rod (25) is connected with the mandrel (12) through a screw in a locking mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210178235.4A CN114309691A (en) | 2022-02-24 | 2022-02-24 | Chuck for realizing radial clamping based on joint bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210178235.4A CN114309691A (en) | 2022-02-24 | 2022-02-24 | Chuck for realizing radial clamping based on joint bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114309691A true CN114309691A (en) | 2022-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210178235.4A Pending CN114309691A (en) | 2022-02-24 | 2022-02-24 | Chuck for realizing radial clamping based on joint bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114309691A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116638109A (en) * | 2023-07-26 | 2023-08-25 | 德力佳传动科技(江苏)股份有限公司 | Gear box turning device and turning method thereof |
-
2022
- 2022-02-24 CN CN202210178235.4A patent/CN114309691A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116638109A (en) * | 2023-07-26 | 2023-08-25 | 德力佳传动科技(江苏)股份有限公司 | Gear box turning device and turning method thereof |
| CN116638109B (en) * | 2023-07-26 | 2023-09-26 | 德力佳传动科技(江苏)股份有限公司 | Gear box turning device and turning method thereof |
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