CN210615168U - Three-jaw chuck and lathe - Google Patents
Three-jaw chuck and lathe Download PDFInfo
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- CN210615168U CN210615168U CN201921761009.9U CN201921761009U CN210615168U CN 210615168 U CN210615168 U CN 210615168U CN 201921761009 U CN201921761009 U CN 201921761009U CN 210615168 U CN210615168 U CN 210615168U
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Abstract
The utility model relates to a lathe technical field discloses a three-jaw chuck and lathe, including chuck body, swing joint in the three jack catch of chuck body and rotate connect in the regulation bevel gear of chuck body is close to adjust bevel gear chuck body end of body is provided with the connecting plate, passes the connecting plate activity is provided with the regulation pole, adjust the pole one end with adjust bevel gear fixed connection, the other end with it is provided with the dwang to adjust the pole mutually perpendicularly, the homonymy of connecting plate is separable to be provided with clamping bar and release rod, the dwang is located clamping bar with between the release rod, work as the dwang contradict in when clamping bar three distance between the jack catch is less than work as the dwang contradicts in when release rod three distance between the jack catch. The utility model discloses a press from both sides tightly effectually.
Description
Technical Field
The utility model relates to a lathe technical field, in particular to three-jaw chuck and lathe.
Background
The three-jaw chuck is a lathe accessory which clamps and positions a workpiece by utilizing the radial movement of three movable jaws uniformly distributed on a chuck body; the three-jaw chuck mainly comprises a chuck body, jaws, an adjusting bevel gear, a wire coil and a large bevel gear which is positioned on the edge of one side of the wire coil and is meshed with the adjusting bevel gear. Three jack catchs all come adjusting position through adjusting bevel gear, only need rotate through instruments such as spanners during adjusting position and adjust bevel gear, then adjust bevel gear and drive the rotation of spiral shell silk through big bevel gear, the spiral shell silk can drive three jack catchs through its line and be close to each other or keep away from. Meanwhile, the three-jaw chuck is one of indispensable functional elements in the lathe.
The common lathe mainly comprises a lathe body, a spindle box, a slide carriage box, a tool rest positioned on the slide carriage box, a tail frame, a feed box, a feed rod, a lead screw and a hand wheel, wherein the slide carriage box is also provided with the hand wheel, and the position of the slide carriage box on the lathe body can be adjusted through the hand wheel. When a workpiece is machined, the workpiece is firstly fixed on the three-jaw chuck, then the three-jaw chuck drives the workpiece to rotate, a worker drives the slide carriage box, the tool rest and the turning tool on the tool rest to move towards the workpiece through the hand wheel, and finally the workpiece and the turning tool are interacted to complete machining.
When a worker fixes a workpiece through the three-jaw chuck, the degree of the bevel gear which is adjusted by the worker in a rotating mode is judged by the worker subjectively, so that the distance between the three jaws is also related to the judgment factor of the worker, an over-tight or over-loose state of the workpiece clamp is possible, for a tubular object such as a stainless steel pipe, the over-tight three-jaw chuck can clamp the workpiece to be deformed, and if the over-loose state is caused, the workpiece and the jaws can slide relatively, so that the clamping effect is poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a three-jaw chuck and lathe aims at solving and presss from both sides tight poor problem of effect.
The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a three-jaw chuck, include chuck body, swing joint in the three jack catch of chuck body and rotate connect in the regulation bevel gear of chuck body is close to adjust bevel gear chuck body end of body is provided with the connecting plate, passes the connecting plate activity is provided with the regulation pole, the one end of adjusting the pole with adjust bevel gear fixed connection, the other end with it is provided with the dwang mutually perpendicularly to adjust the pole, the homonymy of connecting plate can be separated and be provided with clamping bar and release rod, the dwang is located clamping bar with between the release rod, work as the dwang contradict in clamping bar time is three distance between the jack catch is less than and works as the dwang contradict in it is three when releasing the rod distance between the jack catch.
The utility model discloses a further set up to: the connecting plate is close to the first adjustment tank of rectangular shape is seted up to one side of dwang, be provided with in the first adjustment tank with the first regulating block of first adjustment tank sliding fit, press from both sides tight pole with first regulating block threaded connection passes the both ends of first adjustment tank and with the connecting plate rotates and is provided with first regulation pole, the length direction of first regulation pole with the length direction in first adjustment tank is unanimous, first regulation pole with first regulating block threaded connection.
The utility model discloses a further set up to: the connecting plate is close to the second adjustment tank of rectangular shape is seted up to one side of dwang, be provided with in the second adjustment tank with second adjustment tank sliding fit's second regulating block, the release pole with second regulating block threaded connection passes the both ends of second adjustment tank and with the connecting plate rotates to be connected and is provided with the second regulation pole, the length direction of second regulation pole with the length direction of second adjustment tank is unanimous, the second adjust the pole with second regulating block threaded connection.
The utility model discloses a further set up to: the end part of the first adjusting rod, which is positioned outside the connecting plate, is provided with a first rotating wheel.
The utility model discloses a further set up to: and a second rotating wheel is arranged at the end part of the second adjusting rod, which is positioned outside the connecting plate.
The utility model also provides a lathe, including lathe bed, headstock, carriage apron case, hand wheel, polished rod, lead screw, feed box, chuck unit and as above arbitrary the three-jaw chuck, chuck unit with the headstock is connected, chuck body fixed connection in carriage apron case, chuck body's axle center with chuck unit's axle center collineation, chuck unit is last separable to be provided with the drill bit.
The utility model discloses a further set up to: the drill bit is provided with a turning tool in a separable mode, and the turning tool is smaller than the maximum distance between the drill bit and the chuck unit.
The utility model discloses a further set up to: the fixed connecting piece that is provided with the U font on the drill bit, the both ends of connecting piece all are located the lateral part of drill bit, just form between the both ends of connecting piece and be used for placing the fixed space of lathe tool passes the tip threaded connection of connecting piece is provided with clamping screw, clamping screw can pass the one end of connecting piece and with the lathe tool forms contradict.
The utility model has the advantages that: when a workpiece or an object is clamped by the three-jaw chuck, the clamping rod and the releasing rod can be taken down from the chuck body, then the rotating rod drives the adjusting rod and the adjusting bevel gear to rotate, the size between the three jaws can be close to the size of the workpiece to be fixed, then the clamping rod and the releasing rod are taken down from the chuck body, at the moment, when the workpiece is fixed, the rotating rod is rotated firstly to enable the rotating rod to be abutted against the releasing rod, then the workpiece is placed between the three jaws, and then the rotating rod is rotated to enable the rotating rod to be attached to the clamping rod, and when the rotating rod is attached to the clamping rod, the acting forces between the three jaws and the workpiece are just right, namely, the workpiece can not be subjected to overlarge clamping force and can not be loosened; after a work piece processing was accomplished, rotate the dwang and contradict on the release lever, the work piece can be convenient taking out this moment, so in the past, because release lever and clamp lever provide a tight reference of clamp to can make all work pieces all be by right clamp tightly, press from both sides tightly effectually.
The three-jaw chuck is characterized in that other structures inside the three-jaw chuck, such as a wire coil and a large bevel gear, are the same as those of the current common three-jaw chuck, and the three-jaw chuck is characterized in that structures such as an adjusting rod, a rotating rod, a connecting plate, an opening rod and a clamping rod are added on the basis of the existing three-jaw chuck.
Moreover, if the three-jaw chuck rotates along with the spindle box, the adjusting rod and the rotating rod can be taken down from the adjusting bevel gear (a rectangular hole is formed in the adjusting bevel gear and used for being clamped with the adjusting rod); if the three-jaw chuck is only used for fixing a workpiece, for example, the workpiece is clamped and fixed by the three-jaw chuck, and then the workpiece is ground, polished and the like, at the moment, the adjusting rod and the rotating rod can be fixedly connected with the adjusting bevel gear.
Simultaneously, in order to let the dwang can all be equipped with the screw hole on four faces of regulating lever tip between release pole and the tight pole of clamp, dwang optional and wherein arbitrary screw rod hole threaded connection.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural view of an embodiment of a three-jaw chuck of the present invention and a three-jaw chuck in a lathe;
FIG. 2 is an enlarged view of portion A of FIG. 1;
fig. 3 is a schematic structural view of an embodiment of a three-jaw chuck and a lathe in a lathe according to the present invention;
FIG. 4 is an enlarged view of portion B of FIG. 3;
fig. 5 is a schematic structural diagram of an embodiment of the drill bit and the turning tool in the three-jaw chuck and the lathe of the present invention.
In the figure, 1, a chuck body; 2. a claw; 3. a connecting plate; 4. adjusting a rod; 5. rotating the rod; 6. a clamping lever; 7. releasing the rod; 8. a first regulating groove; 9. a first regulating block; 10. a first adjusting lever; 11. a second regulating groove; 12. a second regulating block; 13. a second adjusting lever; 14. a first rotating wheel; 15. a second rotating wheel; 16. a bed body; 17. a main spindle box; 18. a slide carriage box; 19. a hand wheel; 20. a polished rod; 21. a lead screw; 22. a feed box; 23. a chuck unit; 24. a drill bit; 25. turning a tool; 26. a connecting member; 27. and fixing the screw rod.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings and specific embodiments. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
A three-jaw chuck is shown in figures 1 and 2 and comprises a chuck body 1, three jaws 2 movably connected with the chuck body 1 and an adjusting bevel gear rotatably connected with the chuck body 1, wherein a connecting plate 3 is arranged at the end part of the chuck body 1 close to the adjusting bevel gear, an adjusting rod 4 is movably arranged through the connecting plate 3, one end of the adjusting rod 4 is fixedly connected with the adjusting bevel gear, the other end of the adjusting rod 4 is vertically provided with a rotating rod 5, a clamping rod 6 and an opening rod 7 are separately arranged on the same side of the connecting plate 3, the rotating rod 5 is positioned between the clamping rod 6 and the opening rod 7, when the dwang 5 contradict in the clamping rod 6 three the distance between the jack catch 2 is less than when the dwang 5 contradicts in the distance between the jack catch 2 is three when release lever 7.
Connecting plate 3 is close to the first adjustment tank 8 of rectangular shape is seted up to one side of dwang 5, be provided with in the first adjustment tank 8 with the first regulating block 9 of 8 sliding fit in first adjustment tank, press from both sides tight pole 6 with 9 threaded connection of first regulating block passes the both ends of first adjustment tank 8 and with connecting plate 3 rotates and is provided with first regulation pole 10, the length direction of first regulation pole 10 with the length direction of first adjustment tank 8 is unanimous, first regulation pole 10 with 9 threaded connection of first regulating block.
Connecting plate 3 is close to the second adjustment tank 11 of rectangular shape is seted up to one side of dwang 5, be provided with in the second adjustment tank 11 with 11 sliding fit's of second adjustment tank second regulating block 12, release lever 7 with 12 threaded connection of second regulating block passes the both ends of second adjustment tank 11 and with 3 rotations of connecting plate are connected and are provided with second regulation pole 13, the length direction of second regulation pole 13 with the length direction of second adjustment tank 11 is unanimous, second regulation pole 13 with 12 threaded connection of second regulating block.
The end of the first adjusting rod 10 outside the connecting plate 3 is provided with a first rotating wheel 14. The end of the second adjusting rod 13 outside the connecting plate 3 is provided with a second rotating wheel 15.
The utility model also provides a lathe, as shown in fig. 3 to 5, including lathe bed 16, headstock 17, carriage apron 18, hand wheel 19, feed bar 20, lead screw 21, feed box 22, chuck unit 23 and as above arbitrary three-jaw chuck, chuck unit 23 with headstock 17 connects, chuck body 1 fixed connection in carriage apron 18, the axle center of chuck body 1 with the axle center collineation of chuck unit 23, chuck unit 23 is last to separate to be provided with drill bit 24. The chuck unit 23 is a conventional three-jaw chuck, and the machine body 16, the spindle box 17, the carriage box 18, the hand wheel 19, the feed bar 20, the lead screw 21 and the feed box 22 (without a tailstock) are all of common conventional structures, and therefore, the details are not repeated herein; it can be understood as a modification to the existing lathe, specifically, the tool post and the tool on the conventional lathe are firstly disassembled, then the three-jaw chuck in the embodiment is fixedly welded on the carriage 18, and the three-jaw chuck in the embodiment can reciprocate along the axial direction of the screw 21 along with the carriage 18. (alternatively, it is also possible to drill a hole in the tool post of a conventional lathe and then weld the chuck body 1 to the side of the tool post close to the headstock 17, in which case the axis of the chuck body 1, the hole in the tool post, and the axis of the chuck unit 23 are collinear).
The drill bit 24 is detachably provided with a turning tool 25, and the maximum distance between the turning tool 25 and the chuck unit 23 is smaller than the maximum distance between the drill bit 24 and the chuck unit 23. The fixed connecting piece 26 that is provided with the U font on the drill bit 24, the both ends of connecting piece 26 all are located the lateral part of drill bit 24, just it is used for placing to form between the both ends of connecting piece 26 the fixed space of lathe tool 25 passes the tip threaded connection of connecting piece 26 is provided with clamping screw 27, clamping screw 27 can pass the one end of connecting piece 26 and with lathe tool 25 forms contradict.
The utility model provides a three-jaw chuck and lathe, when pressing from both sides tight work piece or object through three-jaw chuck, can at first take off clamping bar 6 and release lever 7 from chuck body 1, then drive regulation pole 4 and regulation bevel gear through dwang 5 and rotate, and make the size between three jack catch 2 can be close with the size of the work piece that needs to fix, then take off clamping bar 6 and release lever 7 from chuck body 1 again, at this moment when fixing the work piece, at first rotate dwang 5 make dwang 5 conflict on release lever 7, then put the work piece between three jack catch 2, then rotate dwang 5, make dwang 5 can laminate on clamping bar 6, and when dwang 5 laminates on clamping bar 6, the effort between three jack catch 2 and the work piece is just right, namely the work piece can not receive too big clamp force at this moment, meanwhile, the looseness can not occur; after a work piece processing is accomplished, rotate dwang 5 and contradict on release lever 7, the work piece can be convenient at this moment take out, so in the past, because release lever 7 and clamp lever 6 provide a tight reference of clamp to can make all work pieces all be by just pressing from both sides tight, press from both sides tightly effectually.
Other structures inside the three-jaw chuck, such as a wire coil and a large bevel gear, are the same as those of the current common three-jaw chuck, and the structures such as an adjusting rod 4, a rotating rod 5, a connecting plate 3, an opening rod 7 and a clamping rod 6 are added on the basis of the existing three-jaw chuck.
Moreover, if the three-jaw chuck rotates along with the spindle box 17, the adjusting rod 4 and the rotating rod 5 can be taken down from the adjusting bevel gear (a rectangular hole is formed in the adjusting bevel gear and used for being clamped with the adjusting rod 4); if the three-jaw chuck is only used for fixing a workpiece, for example, after the workpiece is clamped and fixed by the three-jaw chuck, the workpiece is subjected to structures such as grinding and polishing, and the like, the adjusting rod 4 and the rotating rod 5 can be fixedly connected with the adjusting bevel gear at the moment; or the adjusting rod 4 and the rotating rod 5 can be fixedly connected with the adjusting bevel gear when the rotating speed of the three-jaw chuck is low.
Meanwhile, in order to enable the rotating rod 5 to be arranged between the releasing rod 7 and the clamping rod 6, threaded holes are formed in four surfaces of the end portion of the adjusting rod 4, and the rotating rod 5 can be selectively in threaded connection with any one of the threaded holes.
Due to the different diameters of different workpieces, the required positions of the clamping lever 6 and the release lever 7 are different, wherein the larger the distance between the clamping lever 6 and the release lever 7 and the adjustment lever 4 is, the larger the rotation angle of the rotation lever 5 is, whereas the smaller the distance between the clamping lever 6 and the release lever 7 and the adjustment lever 4 is, the smaller the rotation angle of the rotation lever 5 is. When the position of the clamping rod 6 or the releasing rod 7 is adjusted, only the first adjusting rod 10 or the second adjusting rod 13 needs to be rotated, the first adjusting rod 10 drives the first adjusting block 9 to slide in the first adjusting groove 8, the second adjusting rod 13 drives the second adjusting block 12 to slide in the second adjusting groove 11, and at the moment, the distance between the releasing rod 7 or the clamping rod 6 and the adjusting rod 4 is changed. While the turning operation can be made more labor-saving and convenient by the first turning wheel 14 and the second turning wheel 15.
In which a lathe first clamps a drill 24 to a chuck unit 23 when machining an inner cavity of a cylindrical object (e.g., in the production process of a wiper, it is necessary to perform a relative finish machining on the inner cavity of a beam end of the wiper, and it is also necessary to perform a chamfering machining on the beam end), and then the headstock 17 drives the chuck unit 23 and the drill 24 to rotate together. Then, a workpiece penetrates through the chuck body 1 from one side of the chuck body 1, and after the position of the workpiece is adjusted to be proper, the rotating rod 5 is rotated to enable the rotating rod 5 to abut against the clamping rod 6, so that the workpiece can be properly clamped; the carriage 18 is driven by the hand wheel 19 to move towards the chuck unit 23 until the drill 24 finishes processing the workpiece. After the machining is finished, the hand wheel 19 is rotated reversely, so that the slide carriage box 18 and the chuck body 1 are far away from the chuck unit 23, after a certain interval is reserved between the slide carriage box 18 and the chuck unit 23, the rotating rod 5 is rotated to enable the rotating rod 5 to abut against the release rod 7, the workpiece can be taken out of the chuck body 1 at the moment, and a new workpiece can be replaced, so that the prior art is realized.
When some lathes process workpieces, the drill bit 24 is kept to be not rotated, then the workpieces are rotated, and at the moment, the workpieces need to be replaced after the spindle box 17 is stopped to rotate after one workpiece is processed, so that the spindle box 17 and other structures need to be frequently started and stopped; however, in this embodiment, because the spindle box 17, the chuck unit 23 and the drill bit 24 are all in a state of continuously keeping rotating, the spindle box 17 and the chuck unit 23 can be kept rotating all the time without frequent start and stop, which not only saves electric energy, but also makes the operation more convenient and faster, has higher efficiency, and has less damage to the equipment.
If the end part of the workpiece needs to be chamfered at the same time, the turning tool 25 can be fixedly connected to the connecting piece 26, and the end part of the workpiece is chamfered through the turning tool 25, so that the end part of the workpiece does not need to be chamfered additionally, and the processing efficiency is higher. When the lathe tool 25 is not needed, the fixing screw 27 is only required to be removed from the connecting piece 26, and the lathe tool 25 can be naturally removed. Wherein, both sides of the connection part of the drill bit 24 and the connecting piece 26 are planar and can be clamped with the connecting piece 26, if the turning tool 25 is not needed, the connecting piece 26 can be drawn down from the drill bit 24; if the turning tool 25 is needed, the connecting piece 26 is sleeved on two sides of the plane of the drill bit 24, and then the screw rod penetrates through the drill bit 24 and the connecting piece 26 at the same time, so that the connecting piece 26 is fixedly connected with the drill bit 24. After the connecting piece 26 is fixed, the turning tool 25 is placed in the fixing space, and the fixing screw 27 is rotated to tightly abut against the turning tool 25.
It should be noted that, in the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modification and modification made by those skilled in the art according to the above disclosure are all within the scope of the claims.
Claims (8)
1. A three-jaw chuck, characterized by: comprises a chuck body (1), three clamping jaws (2) movably connected to the chuck body (1) and an adjusting bevel gear rotatably connected to the chuck body (1), a connecting plate (3) is arranged at the end part of the chuck body (1) close to the adjusting bevel gear, an adjusting rod (4) is movably arranged through the connecting plate (3), one end of the adjusting rod (4) is fixedly connected with the adjusting bevel gear, the other end of the adjusting rod (4) is vertically provided with a rotating rod (5), the same side of the connecting plate (3) is separately provided with a clamping rod (6) and an opening rod (7), the rotating rod (5) is positioned between the clamping rod (6) and the releasing rod (7), when dwang (5) contradict in three when pressing from both sides tight pole (6) distance between jack catch (2) is less than when dwang (5) contradict in three when release rod (7) distance between jack catch (2).
2. A three-jaw chuck according to claim 1, wherein: connecting plate (3) are close to the first adjustment tank (8) of rectangular shape is seted up to one side of dwang (5), be provided with in first adjustment tank (8) with first adjustment tank (8) sliding fit's first regulating block (9), press from both sides tight pole (6) with first regulating block (9) threaded connection passes the both ends of first adjustment tank (8) and with connecting plate (3) rotate and are provided with first regulation pole (10), the length direction of first regulation pole (10) with the length direction of first adjustment tank (8) is unanimous, first regulation pole (10) with first regulating block (9) threaded connection.
3. A three-jaw chuck according to claim 2, wherein: connecting plate (3) are close to the second adjustment tank (11) of rectangular shape is seted up to one side of dwang (5), be provided with in second adjustment tank (11) with second adjustment tank (11) sliding fit's second regulating block (12), release lever (7) with second regulating block (12) threaded connection passes the both ends of second adjustment tank (11) and with connecting plate (3) rotate to be connected and are provided with second regulation pole (13), the length direction of second regulation pole (13) with the length direction of second adjustment tank (11) is unanimous, second regulation pole (13) with second regulating block (12) threaded connection.
4. A three-jaw chuck according to claim 3, wherein: the end part of the first adjusting rod (10) located outside the connecting plate (3) is provided with a first rotating wheel (14).
5. The three-jaw chuck according to claim 4, wherein: and a second rotating wheel (15) is arranged at the end part of the second adjusting rod (13) positioned outside the connecting plate (3).
6. A lathe, characterized by: the three-jaw chuck comprises a lathe bed (16), a main shaft box (17), a slide carriage box (18), a hand wheel (19), a feed rod (20), a lead screw (21), a feed box (22), a chuck unit (23) and the three-jaw chuck according to any one of claims 1 to 5, wherein the chuck unit (23) is connected with the main shaft box (17), the chuck body (1) is fixedly connected with the slide carriage box (18), the axis of the chuck body (1) is collinear with the axis of the chuck unit (23), and a drill bit (24) is detachably arranged on the chuck unit (23).
7. A lathe according to claim 6 wherein: the drill bit (24) is provided with a turning tool (25) in a separable mode, the maximum distance between the turning tool (25) and the chuck unit (23) is smaller than the maximum distance between the drill bit (24) and the chuck unit (23).
8. A lathe according to claim 7 wherein: the fixed connecting piece (26) that is provided with the U font on drill bit (24), the both ends of connecting piece (26) all are located the lateral part of drill bit (24), just form between the both ends of connecting piece (26) and be used for placing the fixed space of lathe tool (25), pass the tip threaded connection of connecting piece (26) is provided with clamping screw (27), clamping screw (27) can pass the one end of connecting piece (26) and with lathe tool (25) form contradict.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921761009.9U CN210615168U (en) | 2019-10-18 | 2019-10-18 | Three-jaw chuck and lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921761009.9U CN210615168U (en) | 2019-10-18 | 2019-10-18 | Three-jaw chuck and lathe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210615168U true CN210615168U (en) | 2020-05-26 |
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ID=70757849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921761009.9U Active CN210615168U (en) | 2019-10-18 | 2019-10-18 | Three-jaw chuck and lathe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210615168U (en) |
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2019
- 2019-10-18 CN CN201921761009.9U patent/CN210615168U/en active Active
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