CN211135575U - End surface tensioning chuck - Google Patents

End surface tensioning chuck Download PDF

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Publication number
CN211135575U
CN211135575U CN201922014915.9U CN201922014915U CN211135575U CN 211135575 U CN211135575 U CN 211135575U CN 201922014915 U CN201922014915 U CN 201922014915U CN 211135575 U CN211135575 U CN 211135575U
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CN
China
Prior art keywords
chuck
hob
backup pad
support
workpiece
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Application number
CN201922014915.9U
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Chinese (zh)
Inventor
谢释斋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHANGZHOU WUJIN CHANGJIANG NEEDLE BEARING CO LTD
Original Assignee
CHANGZHOU WUJIN CHANGJIANG NEEDLE BEARING CO LTD
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Priority to CN201922014915.9U priority Critical patent/CN211135575U/en
Application granted granted Critical
Publication of CN211135575U publication Critical patent/CN211135575U/en
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Abstract

The utility model relates to the technical field of machining, especially, relate to a terminal surface tensioning chuck, solved elasticity and aroused the problem that the product warp after the turning. The utility model provides a taut chuck of terminal surface, includes chuck chamber seat and with chuck chamber seat top fixed connection's backup pad, the three support that is central symmetric distribution of backup pad fixedly connected with wears to be equipped with the locating lever inside the support, wears to be equipped with the three hob that is central symmetric in the backup pad, and the hob cover has been cup jointed in the hob outside, the bottom fixed connection of hob cover and backup pad, the tight piece of top fixedly connected with clamp of hob. The utility model discloses a to the pulling of arm-tie, drive the hob at the scroll cover internal rotation and reciprocate, carry out the clamping through the way that three clamp block compressed tightly to the work piece terminal surface, press from both sides tightly under free state when making the work piece clamping, the clamp force does not change the original shape of work piece to solve elasticity and arouse the problem that work piece clamping turning takes place to warp.

Description

End surface tensioning chuck
Technical Field
The utility model relates to the technical field of machining, especially, relate to a terminal surface tensioning chuck.
Background
In the practical production process, a plurality of annular thin-wall workpieces inevitably generate deformation and out-of-round and other problems after heat treatment. In order to obtain the standard size of the workpiece, a large grinding amount is reserved, and the next process is carried out. This will cause a large amount of work of grinding process to waste in the coarse grinding process, greatly reduced production efficiency, manpower and materials manufacturing cost rise by a wide margin.
At present, some enterprises can finish turning products after heat treatment and then directly finish grinding, so that the rough grinding process can be omitted, the production time is greatly reduced, and the production efficiency is improved.
At present, the traditional internal expanding or external clamping common chuck is used for clamping and turning, due to the fact that the product after the heat treatment per se has certain elasticity due to out-of-round, the traditional chuck is used, the deformed product can be restored due to the fact that hydraulic tension is large, and then the product after turning is deformed due to the fact that the product is deformed due to elasticity caused by the fact that the product is changed into an ellipse after being released from the chuck after being turned, therefore, the end face tensioning chuck is needed, and the problems existing in the prior art are solved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a taut chuck of terminal surface has solved the elasticity that exists among the prior art and has aroused the problem that the product warp behind the turning.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a taut chuck of terminal surface, including chuck chamber seat and with chuck chamber seat top fixed connection's backup pad, the three support that is central symmetric distribution of backup pad fixedly connected with, the inside locating lever of wearing to be equipped with of support, wear to be equipped with the three hob that is central symmetry in the backup pad, the hob cover has been cup jointed in the hob outside, the bottom fixed connection of hob cover and backup pad, the tight piece of top fixedly connected with clamp of hob, the inside of chuck chamber seat is provided with the slidable arm-tie, the top of arm-tie is equallyd divide do not to rotate with the bottom of three hob and is connected.
Preferably, the top of the supporting plate is fixedly connected with a conical ring.
Preferably, one end of the positioning rod is a cylinder, and the other end of the positioning rod is a cone.
Preferably, the outer surface of the vertebral body section of one of the positioning rods is sleeved with a limiting block, and the outer surface of the positioning rod is sleeved with a spring fixedly connected with one side of the limiting block.
Preferably, the screw shaft has a screw angle in the range of 0 ° to 90 °.
Preferably, a pressing plate is arranged between two adjacent supports, the pressing plate is sleeved on the outer surface of the screw rod, and the adjacent pressing plate and the supports are distributed on the supporting plate at equal angles.
Compared with the prior art, the beneficial effects of the utility model are that: the pulling plate is pulled to drive the screw rod to rotate and move up and down in the screw sleeve, and the clamping is carried out by a method of compressing the end face of the workpiece through the three clamping blocks, so that the workpiece is clamped in a free state, the original shape of the workpiece is not changed by the clamping force, and the problem that the workpiece is deformed during clamping and turning due to elasticity is solved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the present invention in a partial cross-sectional view;
FIG. 3 is a schematic top view of the present invention;
FIG. 4 is a schematic view of the positioning rod of the present invention;
fig. 5 is a schematic view of the screw rod of the present invention.
In the figure: 1. a chuck cavity mount; 2. a support plate; 3. a support; 4. positioning a rod; 5. a screw rod; 6. a spiral sleeve; 7. a clamping block; 8. pulling a plate; 9. a conical ring; 10. a limiting block; 11. a spring; 12. and (7) pressing a plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-5, an end surface tensioning chuck comprises a chuck cavity seat 1 and a supporting plate 2 fixedly connected with the top of the chuck cavity seat 1, specifically, the chuck cavity seat 1 is fixedly connected with the supporting plate 2 through a fixing nut; the supporting plate 2 is fixedly connected with three supporting seats 3 which are distributed in a central symmetry manner, positioning rods 4 penetrate through the supporting seats 3, specifically, a workpiece is placed on the supporting plate 2, the workpiece is positioned through the three positioning rods 4, and the workpiece is positioned by adopting the principle of bearing meter measurement; three centrosymmetric screw rods 5 penetrate through the supporting plate 2, a screw sleeve 6 is sleeved outside the screw rod 5, the screw sleeve 6 is fixedly connected with the bottom of the supporting plate 2, a clamping block 7 is fixedly connected with the top end of the screw rod 5, a slidable pull plate 8 is arranged inside the chuck cavity seat 1, the top of the pull plate 8 is uniformly connected with the bottom ends of the three screw rods 5 in a rotating mode, the pull plate 8 is powered by an external oil cylinder, when a workpiece is placed on the supporting plate 2, the screw rod 5 is driven by the oil cylinder to rotate spirally in the screw sleeve 6, meanwhile, the clamping block 7 at the top end of the screw rod 5 also moves to the end face of the workpiece, the end face of the workpiece is clamped, the workpiece is clamped by a method of pressing the three clamping blocks 7, the workpiece is clamped in a free state when being clamped, and the original shape of the workpiece is not changed by the clamping force, thereby solving the problem that the elasticity causes the deformation of the workpiece during clamping and turning.
Furthermore, the top of the supporting plate 2 is fixedly connected with a conical ring 9, and the arrangement of the conical ring 9 reduces the contact area between the lower end face of the workpiece and the supporting plate 2, prevents the workpiece from being clamped in a non-free state, prevents the workpiece from elastically deforming, and provides a supporting function for the workpiece.
Furthermore, one end of the positioning rod 4 is a cylinder, the other end of the positioning rod 4 is a cone, the cone end of the positioning rod 4 is in contact positioning with the workpiece, and the conical end is an arc-shaped curved surface, so that the contact area between the positioning rod 4 and the workpiece is effectively reduced, and the workpiece is prevented from elastic deformation.
Furthermore, stopper 10 has been cup jointed to the centrum section surface of one of them locating lever 4, and the surface of locating lever 4 cup joints spring 11 with stopper 10 one side fixed connection, and the work piece location adopts the principle of bearing gauge stand measurement to fix a position, has three locating lever 4 on the support 3 to fix a position the work piece, and wherein two are after good work piece position, and immovable, another one locating lever 4 is spring 11 locating lever 4 that floats, is convenient for go on go up the unloading.
Furthermore, the range of the spiral angle of the spiral rod 5 is 0-90 degrees, the maximum spiral rotation angle of the spiral rod 5 is 90 degrees, and meanwhile, the maximum spiral rotation angle of the clamping block 7 at the top end of the spiral rod 5 is also 90 degrees, so that the action requirements of end surface tensioning of the workpiece and mutual noninterference of feeding and discharging are met.
Further, be provided with clamp plate 12 between two adjacent supports 3, clamp plate 12 cup joints at 5 surfaces of hob, and angular distribution such as adjacent clamp plate 12 and support 3 is in backup pad 2, and is concrete, and clamp plate 12 makes hob 5 more stable when carrying out the spiral rotation, and clamp plate 12 is angular distribution such as 60 with support 3 simultaneously, fixes a position the side of work piece and the tensioning of work piece terminal surface, makes its location and taut effect better.
The working principle is as follows: the pull plate 8 is powered by an external oil cylinder, when a workpiece is placed on the conical ring 9 on the supporting plate 2, the support 3 is provided with three positioning rods 4 for positioning the workpiece, two of the positioning rods are fixed after the workpiece is aligned, the other positioning rod 4 is a spring 11 floating positioning rod 4 which is convenient for loading and unloading, the screw rod 5 is driven to rotate spirally in the screw sleeve 6 by the driving of the oil cylinder, and simultaneously the clamping block 7 at the top end of the screw rod 5 moves to the end surface of the workpiece, the end face of the workpiece is clamped, the clamping is carried out by a method of pressing the end face of the workpiece by three clamping blocks 7, therefore, the action requirements that the end face of the workpiece is tensioned and the feeding and discharging are not interfered with each other are met, the workpiece is clamped in a free state when being clamped, the original shape of the workpiece is not changed by clamping force, and the problem that the workpiece is clamped and turned to deform due to elasticity is solved.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

1. The utility model provides a taut chuck of terminal surface, includes chuck chamber seat (1) and backup pad (2) with chuck chamber seat (1) top fixed connection, a serial communication port, backup pad (2) three support (3) that are central symmetric distribution of fixedly connected with, locating lever (4) are worn to be equipped with inside in support (3), wear to be equipped with three hob (5) that are central symmetry in backup pad (2), the turnbuckle (6) has been cup jointed in hob (5) outside, the bottom fixed connection of turnbuckle (6) and backup pad (2), the top fixedly connected with of hob (5) presss from both sides tight piece (7), the inside of chuck chamber seat (1) is provided with slidable arm-tie (8), the top of arm-tie (8) is equallyd divide do not with three the bottom of hob (5) is rotated and is connected.
2. An end face pull chuck according to claim 1, characterized in that a conical ring (9) is fixedly attached to the top of the support plate (2).
3. The end face tightening chuck as claimed in claim 1, characterized in that the detent lever (4) is cylindrical at one end and the detent lever (4) is conical at the other end.
4. The end surface tension chuck as claimed in any one of claims 1 or 3, wherein a limiting block (10) is sleeved on the outer surface of the vertebral body section of one of the positioning rods (4), and a spring (11) fixedly connected with one side of the limiting block (10) is sleeved on the outer surface of the positioning rod (4).
5. The end face tightening chuck as claimed in claim 1, characterized in that the screw shaft (5) has a screw angle in the range of 0 ° to 90 °.
6. The end face tensioning chuck as claimed in claim 1, characterized in that a pressure plate (12) is arranged between two adjacent supports (3), the pressure plate (12) is sleeved on the outer surface of the screw rod (5), and the adjacent pressure plate (12) and the supports (3) are distributed on the support plate (2) at equal angles.
CN201922014915.9U 2019-11-20 2019-11-20 End surface tensioning chuck Active CN211135575U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922014915.9U CN211135575U (en) 2019-11-20 2019-11-20 End surface tensioning chuck

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922014915.9U CN211135575U (en) 2019-11-20 2019-11-20 End surface tensioning chuck

Publications (1)

Publication Number Publication Date
CN211135575U true CN211135575U (en) 2020-07-31

Family

ID=71773573

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201922014915.9U Active CN211135575U (en) 2019-11-20 2019-11-20 End surface tensioning chuck

Country Status (1)

Country Link
CN (1) CN211135575U (en)

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