CN217492736U - Turning and clamping chuck for irregular-shaped blank - Google Patents
Turning and clamping chuck for irregular-shaped blank Download PDFInfo
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- CN217492736U CN217492736U CN202221448051.7U CN202221448051U CN217492736U CN 217492736 U CN217492736 U CN 217492736U CN 202221448051 U CN202221448051 U CN 202221448051U CN 217492736 U CN217492736 U CN 217492736U
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Abstract
The utility model discloses a turning clamping chuck for irregular-shaped blanks, which comprises a chuck body, at least three stress application clamping jaw assemblies and synchronous transmission seats, wherein the chuck body is fixedly connected with a main shaft of a numerical control lathe, the middle part of the chuck body is provided with the synchronous transmission seats, the periphery of the synchronous transmission seats is provided with the stress application clamping jaw assemblies in an annular array manner, each stress application clamping jaw assembly comprises a transmission shaft, a screw rod, clamping jaw blocks, a sliding block, a hand screw nut and an adjusting handle, and a conical sleeve for stress application locking the transmission shaft and the screw rod, each synchronous transmission seat comprises a transmission box and a plurality of groups of transmission bevel gears, guide bevel gears, a guide shaft and a center seat for positioning the guide transmission shaft, the clamping chuck adopts the stress application clamping jaw assemblies which synchronously, synchronously and synchronously rotate in the same direction to clamp and position the irregular-shaped blanks, each clamping jaw block can independently adjust the clamping distance to adapt to the positioning and clamping of blanks with various complex shapes, the application range is wide, the popularization and the application are facilitated, the application range of the numerical control lathe is widened, and the product machining precision is improved.
Description
Technical Field
The utility model relates to a machine tool equipment technical field, concretely relates to turning clamping chuck for irregularly shaped blank.
Background
Under the condition that the process level of a current numerical control lathe is continuously refined, the processing precision of a cylindrical blank is well controlled, and for the blank with an irregular shape, a certain part of the blank needs to be subjected to cylindrical turning surface processing, a three-jaw chuck adopted by the conventional numerical control lathe is difficult to clamp and position well, a processing center is only adopted to process by a milling cutter milling scheme, but the cylindrical surface precision of milling processing is not as accurate as that of turning, and the processing efficiency is not as accurate as that of turning. Therefore, a chuck device capable of clamping the irregular-shaped blank according to a required angle and a required placing posture is needed to be designed, so that the surface of a certain part of the blank can be conveniently turned in a numerical control mode, the application range of a numerical control lathe is widened, and the product machining precision is improved.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the purpose: in view of the technical requirements that a three-jaw chuck adopted by the existing numerical control lathe in the background technology is difficult to well clamp and position irregular-shaped blanks, the turning clamping chuck for the irregular-shaped blanks is designed, at least three groups of boosting clamping jaw assemblies rotating synchronously, at the same speed and in the same direction clamp and position the irregular-shaped blanks, each clamping jaw can independently adjust the clamping distance, the three-jaw boosting clamping chuck is suitable for positioning and clamping of the blanks in various complex shapes, the application range is wide, popularization and application are facilitated, the application range of the numerical control lathe is widened, and the product processing precision is improved.
The technical scheme adopted for solving the problems is as follows:
a turning and clamping chuck for irregular-shaped blanks comprises a chuck body, at least three groups of stress application clamping jaw assemblies and a synchronous transmission seat, wherein the stress application clamping jaw assemblies are annularly arranged on the chuck body in an array manner,
the chuck body is fixedly connected with a main shaft of the numerical control lathe, the middle part of the chuck body is provided with a synchronous transmission seat, the periphery of the synchronous transmission seat is provided with a stress application clamping jaw assembly in an annular array,
the boosting clamping jaw assembly comprises a transmission shaft, a screw rod, a clamping jaw block, a sliding block, a hand-turning nut, an adjusting handle and a conical sleeve for boosting and locking the transmission shaft and the screw rod, wherein the outer end of the screw rod is fixedly connected with the adjusting handle, a screw rod groove is formed in the periphery of the screw rod, the screw rod groove is in matched threaded connection with a screw rod sliding sleeve fixedly connected with the lower end of the clamping jaw block to drive the clamping jaw block to slide, a center hole is formed in the center of the conical sleeve, the center hole is in clearance fit with a shaft hole of the transmission shaft, the shaft end outside the transmission shaft is fixedly connected with the adjusting handle to enable the clamping jaw block to directionally slide along the linear direction, the transmission shaft is arranged along the radial direction of the chuck body and is in matched connection with the synchronous transmission seat, the conical sleeve is matched and pressed with a conical cavity arranged in the screw rod, a pushing spring penetrating through the transmission shaft is further arranged between the conical sleeve and a base inside the hand-turning nut, and the static friction force of the conical curved surface arranged on the conical sleeve and the conical cavity is increased, and the transmission shaft and the screw rod are tightly locked by utilizing static friction force,
the synchronous transmission seat comprises a transmission case, a plurality of groups of transmission bevel gears, guide shafts and a center seat for positioning and guiding the transmission shafts, wherein the transmission bevel gears are fixedly connected with key grooves of shaft holes of the transmission shafts, all the guide bevel gears are in meshing transmission with the transmission bevel gears, and the guide bevel gears and the transmission bevel gears are arranged and enclosed into a whole circle.
Further, the shaft end on the inner side of the transmission shaft is connected in a positioning mode through a bearing seat.
Furthermore, the sliding blocks are fixedly connected to two sides of the lower end of the clamping jaw block and matched with sliding grooves formed in the chuck body.
Furthermore, the guide bevel gear is positioned and rotated through a guide shaft, and the guide shaft is radially and fixedly connected to the center seat.
The utility model has the advantages that:
this a turning clamping chuck for irregular shape blank adopts the synchronous, with fast, syntropy pivoted afterburning clamping jaw subassembly of no less than three groups to irregular shape blank centre gripping location to every clamping jaw piece homoenergetic is adjusted the centre gripping distance independently, and the location clamping of the blank of multiple complicated shape of adaptation, application scope is wide, does benefit to popularization and application, improves numerical control lathe's application range, improves product machining precision.
Drawings
FIG. 1 is a schematic structural view of a turning and clamping chuck for irregular-shaped blanks according to the present embodiment;
FIG. 2 is a perspective view of the internal structure of the synchronous drive base according to the present embodiment;
FIG. 3 is an enlarged cross-sectional view taken at A in FIG. 2;
fig. 4 is a schematic view illustrating a state where the tapered sleeve and the tapered curved surface are tightly pressed and attached in the present embodiment;
FIG. 5 is a schematic diagram illustrating a state where the taper sleeve is separated from the taper curved surface according to the present embodiment;
the automatic chuck comprises a chuck body 1, a sliding chute 2, a screw rod 3, a lifting handle 4, a hand-screwed nut 5, a sliding block 6, a synchronous transmission seat 7, a clamping jaw block 8, a screw rod sliding sleeve 9, a transmission shaft 10, a guide bevel gear 11, a transmission bevel gear 12, a guide shaft 13, a transmission box 14, a center seat 15, a bearing seat 16, a conical curved surface 17, a pushing spring 18, a conical sleeve 19 and a conical cavity 20.
Detailed Description
The technical solution of the present invention will be described clearly and completely by way of example with reference to the accompanying drawings.
Referring to fig. 1-5, the present embodiment provides a turning clamping chuck for irregular-shaped blanks, including a chuck body 1, three sets of stressing clamping jaw assemblies arranged on the chuck body 1 in an annular array, and a synchronous transmission seat 7, wherein the chuck body 1 is fixedly connected to a spindle of a numerically controlled lathe, the middle portion of the chuck body is provided with the synchronous transmission seat 7, and the periphery of the synchronous transmission seat 7 is provided with the stressing clamping jaw assemblies in an annular array.
Specifically, referring to fig. 1 and 2, the stressing clamping jaw assembly includes a transmission shaft 10, a screw rod 3, a clamping jaw block 8, a sliding block 6, a hand nut 5, an adjusting handle 4, and a conical sleeve 19 for stressing and locking the transmission shaft 10 and the screw rod 3, an outer end of the screw rod 3 is fixedly connected with the adjusting handle 4, a screw rod groove is formed in an outer periphery of the screw rod, the screw rod groove is in screw connection with a screw rod sliding sleeve 9 fixedly connected with a lower end of the clamping jaw block 8, the clamping jaw block 8 is driven to slide, a center hole is formed in the center of the screw rod, the center hole is in clearance fit with a shaft hole of the transmission shaft 10, an outer shaft end of the transmission shaft 10 is fixedly connected with the adjusting handle 4, the clamping jaw block 8 slides directionally along a straight line direction, the adjusting handle is manually pulled, the screw rod 3 can independently adjust the distance of the clamping jaw block without changing postures and positions of the other two groups of stressing clamping jaw assemblies, and the transmission shaft 10 is arranged along a radial direction of the chuck body 1, and is connected with the synchronous drive seat 7 in a matching way, referring to fig. 4 and 5, the conical sleeve 19 is pressed with a conical cavity 20 arranged in the screw rod 3 in a matching way, a pushing spring 18 which is sleeved on the transmission shaft 10 in a penetrating way is also arranged between the conical sleeve 19 and the base at the inner side of the hand-screwed nut 5, the static friction force of a conical curved surface 17 arranged on the conical sleeve 19 and the conical cavity 20 is increased, the transmission shaft 10 and the screw rod 3 are tightly locked by utilizing the static friction force, and the conical sleeve can be tightly attached to the surface of the conical curved surface to improve the static friction force no matter the centrifugal force is applied under the high-speed rotation state of the chuck or the reverse thrust action of the irregular-shaped blank on the clamping jaw block, so that the clamping jaw block firmly and stably clamps the blank.
Referring to fig. 3, the synchronous transmission seat 7 includes a transmission case 14, a plurality of sets of transmission bevel gears 12, guide bevel gears 11, a guide shaft 13, and a center seat 15 for positioning and guiding the transmission shaft 10, wherein the transmission bevel gears 12 are fixedly connected with shaft hole keyways of the transmission shaft 10, all the guide bevel gears 11 are in mesh transmission with the transmission bevel gears 12, and the guide bevel gears 11 and the transmission bevel gears 12 are arranged and enclose a complete circle.
In a further embodiment, referring to fig. 3, the inner shaft end of the transmission shaft 10 is connected by a bearing seat 16.
In a further embodiment, referring to fig. 1 and 2, the sliding blocks 6 are fixedly connected to two sides of the lower end of the jaw block 8 and are matched with the sliding grooves 2 formed in the chuck body 1.
In a further embodiment, with reference to fig. 3, the helical guide gear 11 is positioned for rotation by a guide shaft 13, the guide shaft 13 being attached radially to the central seat 15.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes, modifications, substitutions and alterations can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims (5)
1. The utility model provides a turning clamping chuck for irregularly shaped blank which characterized in that: comprises a chuck body, at least three groups of stressing clamping jaw assemblies and a synchronous transmission seat, wherein the stressing clamping jaw assemblies are annularly arranged on the chuck body in an array manner,
the chuck body is fixedly connected with a main shaft of the numerical control lathe, the middle part of the chuck body is provided with a synchronous transmission seat, the periphery of the synchronous transmission seat is provided with a stress application clamping jaw assembly in an annular array,
the boosting clamping jaw assembly comprises a transmission shaft, a screw rod, a clamping jaw block, a sliding block, a hand-turning nut, an adjusting handle, a boosting locking transmission shaft and a conical sleeve of the screw rod, wherein the outer end of the screw rod is fixedly connected with the adjusting handle, the periphery of the screw rod is provided with a screw rod groove, the screw rod groove is in matched screw connection with a screw rod sliding sleeve fixedly connected with the lower end of the clamping jaw block to drive the clamping jaw block to slide, the center of the screw rod is provided with a center hole in a penetrating way, the center hole is in clearance fit with a shaft hole of the transmission shaft, the shaft end outside the transmission shaft is fixedly connected with the adjusting handle to enable the clamping jaw block to directionally slide along the linear direction, the transmission shaft is arranged along the radial direction of the chuck body and is in matched connection with the synchronous transmission seat, and the conical sleeve is matched and pressed with a conical cavity arranged in the screw rod,
the synchronous transmission seat comprises a transmission case, a plurality of groups of transmission bevel gears, guide shafts and a center seat for positioning and guiding the transmission shafts, wherein the transmission bevel gears are fixedly connected with key grooves of shaft holes of the transmission shafts, all the guide bevel gears are in meshing transmission with the transmission bevel gears, and the guide bevel gears and the transmission bevel gears are arranged and enclosed into a whole circle.
2. The turning chuck for irregular shaped blanks as recited in claim 1, wherein: and a pushing spring sleeved on the transmission shaft in a penetrating manner is further arranged between the conical sleeve and the base on the inner side of the hand-screwed nut.
3. The turning and clamping chuck for irregular-shaped blanks as recited in claim 1, wherein: the shaft end at the inner side of the transmission shaft is positioned and connected through a bearing seat.
4. The turning and clamping chuck for irregular-shaped blanks as recited in claim 1, wherein: the sliding blocks are fixedly connected to two sides of the lower end of the clamping jaw block and matched with sliding grooves formed in the chuck body.
5. The turning and clamping chuck for irregular-shaped blanks as recited in claim 1, wherein: the guide bevel gear is positioned and rotated through a guide shaft, and the guide shaft is radially and fixedly connected to the center seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221448051.7U CN217492736U (en) | 2022-06-10 | 2022-06-10 | Turning and clamping chuck for irregular-shaped blank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221448051.7U CN217492736U (en) | 2022-06-10 | 2022-06-10 | Turning and clamping chuck for irregular-shaped blank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217492736U true CN217492736U (en) | 2022-09-27 |
Family
ID=83360331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221448051.7U Active CN217492736U (en) | 2022-06-10 | 2022-06-10 | Turning and clamping chuck for irregular-shaped blank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217492736U (en) |
-
2022
- 2022-06-10 CN CN202221448051.7U patent/CN217492736U/en active Active
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