CN219966480U

CN219966480U - Rotary clamping device

Info

Publication number: CN219966480U
Application number: CN202321222659.2U
Authority: CN
Inventors: 王火明; 郭磊; 卞建军; 何国伟; 施旭灏
Original assignee: Kunshan Bodafeng Precision Machinery Co ltd
Current assignee: Kunshan Bodafeng Precision Machinery Co ltd
Priority date: 2023-05-19
Filing date: 2023-05-19
Publication date: 2023-11-07
Anticipated expiration: 2033-05-19

Abstract

The utility model discloses a rotary clamping device, which comprises a CNC machine table, a rotary chuck and a center seat, wherein the rotary chuck and the center seat are oppositely arranged on the CNC machine table, the bottom of the center seat is connected with a linear driving component used for driving the center seat to be close to or far away from the rotary chuck, a balance guide component used for balancing the rotation of a workpiece is arranged between the rotary chuck and the center seat, the balance guide component comprises a heightening table fixed on the CNC machine table, a U-shaped seat fixed on the top of the heightening table and an arc-shaped block rotationally arranged on one side of the U-shaped seat, a guide roller is rotationally arranged in the arc-shaped block, and the arc-shaped block can be fixed with the U-shaped seat by screwing in a locking piece.

Description

Rotary clamping device

Technical Field

The utility model relates to the technical field of valve core machining, in particular to a rotary clamping device.

Background

The valve core is a main part in various hydraulic systems, the machining precision requirement is strict, and because some valve cores are long in length, when a rotary clamping device on a CNC machine tool drives the valve core to rotate, severe shaking or shaking can be generated, so that the CNC machine tool cannot be guaranteed to realize high-precision machining, the defective rate of the finally machined valve core is high, resources of enterprises are wasted, and the rotary clamping device is disclosed in order to solve the problem.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model discloses a rotary clamping device.

In order to achieve the above purpose, the present utility model is realized by the following technical scheme: the utility model provides a rotatory clamping device, includes CNC board, spin chuck and top seat set up relatively on the CNC board, the bottom of top seat is connected with the sharp drive assembly that is used for driving it to be close to or keep away from spin chuck, set up the balanced direction subassembly that is used for balancing work piece rotation between spin chuck and the top seat, balanced direction subassembly is including fixing the bed hedgehopping platform on the CNC board, fixing at the U-shaped seat of bed hedgehopping bench top and rotating the arc piece that sets up in U-shaped seat one side, rotatable be provided with the guide roll in the arc piece, arc piece accessible is twisted the retaining member and is fixed with U-shaped seat.

Further, the CNC machine is provided with two linear guide rails at the bottom of the side of the center seat, and the center seat is slidingly connected to the two linear guide rails.

Further, the linear driving assembly comprises a screw rod with a screw rod nut, a screw rod supporting seat, a screw rod fixing seat and a servo motor, wherein the screw rod fixing seat and the screw rod supporting seat are respectively arranged close to two ends of the linear guide rail, the screw rod is arranged between the screw rod supporting seat and the screw rod fixing seat, the servo motor is arranged outside the side of the screw rod fixing seat and connected with the screw rod through a coaxial connector, and the center seat is connected with the screw rod nut on the screw rod.

Further, the center extension line of the center seat and the center extension line of the rotary chuck are in the same straight line.

Further, the bottom of arc piece is provided with the mounting groove, the mounting groove of arc piece is pegged graft in a side top of U-shaped seat and is rotated it through the pivot and is connected with the U-shaped seat, the retaining member passes the grafting groove and fixes U-shaped seat and arc piece mutually.

Further, the locking piece is a locking bolt or a locking screw.

The utility model has the following beneficial effects:

according to the utility model, the workpiece can not generate intense shaking or vibration in the rotating process through the balance guide assembly, so that the machining precision of the CNC machine tool on the workpiece is improved, and compared with the traditional rotary clamping device, the resource waste is reduced, and the production cost of enterprises is reduced.

Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.

FIG. 1 is a schematic diagram of the overall structure of the present disclosure;

FIG. 2 is an enlarged schematic view of the present disclosure at A;

FIG. 3 is a schematic cross-sectional view of a balance guide assembly of the present disclosure.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Examples

In order to solve the problems that in the prior art, when a rotary clamping device on a CNC machine tool drives a valve core with a longer length to rotate, severe shaking or shaking is generated, and the CNC machine tool cannot be guaranteed to realize high-precision machining, and the defective rate of the machined valve core is higher, the utility model discloses a rotary clamping device (shown by referring to figures 1-3), which comprises a CNC machine table 10, a rotary chuck 20 and a center seat 30, wherein the rotary chuck and the center seat are oppositely arranged on the CNC machine table, the bottom of the center seat is connected with a linear driving assembly 40 for driving the rotary chuck to be close to or far from the rotary chuck, and in addition, in order to guarantee the positions of the rotary chuck and the center chuck, the central extension line of the center seat and the central extension line of the rotary chuck are in the same straight line; the balance guide assembly 60 for balancing the rotation of the workpiece is arranged between the rotary chuck and the center seat, and comprises a heightening platform 61 fixed on the CNC machine table, a U-shaped seat 62 fixed on the top of the heightening platform and an arc-shaped block 63 rotatably arranged on one side of the U-shaped seat, a guide roller 64 is rotatably arranged in the arc-shaped block, and the arc-shaped block can be fixed with the U-shaped seat by screwing in a locking piece 67.

In actual use, an operator assembles one end of the workpiece 70 to be processed on the rotating chuck (the workpiece passes through the U-shaped seat), then controls the linear driving assembly to drive the center seat to move until the linear driving assembly abuts against the other end of the workpiece, in this case, the operator drives the arc-shaped block to rotate until the guide roller contacts the surface of the workpiece, after that, the arc-shaped block is fixed with the U-shaped seat through the locking piece, and when the rotating chuck drives the workpiece to rotate, the guide roller rotates together against the workpiece, and at the moment, the workpiece with long length cannot shake or shake severely.

Specifically, the CNC machine is provided with two linear guide rails 50 at the bottom of the side of the center seat, and the center seat is slidably connected to the two linear guide rails, so that the linear driving assembly can drive the center seat to slide, and approach or separate from the rotating chuck.

Based on the previous embodiment, the linear driving assembly comprises a screw rod 44 with a screw rod nut, a screw rod supporting seat 45, a screw rod fixing seat 43 and a servo motor 41, wherein the screw rod fixing seat and the screw rod supporting seat are respectively arranged near two ends of the linear guide rail, the screw rod is installed between the screw rod supporting seat and the screw rod fixing seat, the servo motor is arranged outside the screw rod fixing seat and connected with the screw rod through a coaxial connector 42, and the tip seat is connected with the screw rod nut on the screw rod.

In one embodiment, the bottom of the arc-shaped block is provided with a mounting groove 65, the mounting groove of the arc-shaped block is inserted above one side edge of the U-shaped seat and is rotationally connected with the U-shaped seat through a rotating shaft 66, and the locking piece penetrates through the inserting groove to fix the U-shaped seat and the arc-shaped block.

Preferably, the locking piece is a locking bolt or a locking screw, and the arc-shaped block and the U-shaped seat can be fixed by using the locking bolt or the locking screw, so that the arc-shaped block is prevented from moving in the rotating process of the workpiece, the guide roller is enabled to act, and the function of balancing and guiding is lost.

The foregoing embodiments are merely illustrative of the technical concept and features of the present utility model, and are intended to enable those skilled in the art to understand the present utility model and to implement the same according to the present utility model, not to limit the scope of the present utility model. All changes and modifications that come within the meaning and range of equivalency of the utility model are to be embraced within their scope.

Claims

1. The utility model provides a rotatory clamping device, includes CNC board, spin chuck and top seat set up relatively on the CNC board, the bottom of top seat is connected with the sharp drive assembly who is used for driving it to be close to or keep away from spin chuck, its characterized in that, set up the balanced direction subassembly that is used for balanced work piece rotation between spin chuck and the top seat, balanced direction subassembly is including fixing the bed hedgehopping platform on the CNC board, fixing at the U-shaped seat at bed hedgehopping top and rotating the arc piece that sets up in U-shaped seat one side, rotatable be provided with the guide roll in the arc piece, the arc piece accessible is twisted the retaining member and is fixed with U-shaped seat.

2. The rotary clamping device according to claim 1, wherein the CNC machine is provided with two linear guides at the bottom of the tip seat, and the tip seat is slidingly connected to the two linear guides.

3. The rotary clamping device according to claim 2, wherein the linear driving assembly comprises a screw rod with a screw rod nut, a screw rod supporting seat, a screw rod fixing seat and a servo motor, the screw rod fixing seat and the screw rod supporting seat are respectively arranged close to two ends of the linear guide rail, the screw rod is arranged between the screw rod supporting seat and the screw rod fixing seat, the servo motor is arranged outside the screw rod fixing seat and connected with the screw rod through a coaxial connector, and the center seat is connected with the screw rod nut on the screw rod.

4. The spin chuck of claim 1, wherein the center extension of the tip holder and the center extension of the spin chuck are collinear.

5. The rotary clamping device according to claim 1, wherein a mounting groove is formed in the bottom of the arc-shaped block, the mounting groove of the arc-shaped block is inserted above one side edge of the U-shaped seat and is rotatably connected with the U-shaped seat through a rotating shaft, and the locking piece penetrates through the inserting groove to fix the U-shaped seat with the arc-shaped block.

6. The rotary clamping device of claim 1, wherein the locking member is a locking bolt or a locking screw.