CN213828526U

CN213828526U - Clamping mechanism of numerical control precision cylindrical grinder

Info

Publication number: CN213828526U
Application number: CN202022547886.5U
Authority: CN
Inventors: 陈昊
Original assignee: Dehaotong Electromechanical Dalian Co ltd
Current assignee: Dehaotong Electromechanical Dalian Co ltd
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2021-07-30
Anticipated expiration: 2030-11-06

Abstract

The utility model discloses a clamping mechanism of accurate cylindrical grinder of numerical control. The utility model provides a pair of accurate cylindrical grinder's of numerical control clamping mechanism, include: the clamping mechanism comprises a clamping mechanism mounting seat, a clamping device, a lifting disc, a screw and a screw seat; the utility model discloses a set up fixture mount pad, clamping device, the lifting disk, screw rod and screw rod seat, moreover, the steam generator is simple in structure, the manual carousel of screw rod bottom is rotated to the accessible for the screw rod rises or descends along screw channel in the screw rod seat, thereby drive clamping device's first linking arm, second linking arm and third linking arm action through the lifting disk, realize pressing from both sides tightly or release to the work piece through the clamping jaw on the first linking arm, the operation is swift convenient, the operating efficiency who presss from both sides tight work piece has been promoted.

Description

Clamping mechanism of numerical control precision cylindrical grinder

Technical Field

The utility model relates to the technical field of machine tools, concretely relates to accurate cylindrical grinder's of numerical control clamping mechanism.

Background

The cylindrical grinding machine is a grinding machine for processing the outer surface and the shaft shoulder end surface formed by the plain lines of a cylindrical, conical or other-shaped workpiece; the cylindrical grinder is a machine tool which is most widely applied in all grinders, and generally comprises a cast iron lathe bed at a basic part, a workbench, a headstock, a tailstock, a grinding carriage (grinding head) for supporting and driving a workpiece to rotate, a transverse feeding mechanism for controlling the size of the ground workpiece, an electric appliance for controlling the motion of moving parts of the machine tool, a hydraulic device, a clamping mechanism and other main parts. The clamping mechanism of the existing cylindrical grinding machine is divided into a manual clamping mechanism and an automatic clamping mechanism, the manual clamping mechanism of the existing cylindrical grinding machine on the market generally adopts two clamping blocks to clamp a workpiece, screw rods are respectively installed between two ends of the two clamping blocks, and the clamping of the two clamping blocks on the workpiece is realized through the screw rods and nuts. However, when the conventional clamping mechanism clamps a workpiece, the nut needs to be screwed to two to four screws, which is cumbersome. Therefore, it is necessary to provide a clamping mechanism for a CNC cylindrical grinder to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The invention aims to overcome the defects and provide a clamping mechanism of a numerical control precision cylindrical grinding machine, so as to solve the problem that when the conventional clamping mechanism clamps a workpiece, two to four screw rods need to be screwed, and the operation is complicated.

The utility model provides a clamping mechanism of accurate cylindrical grinder of numerical control, include: the clamping mechanism comprises a clamping mechanism mounting seat, a clamping device, a lifting disc, a screw and a screw seat;

the clamping device comprises two clamping jaw arms which are symmetrically arranged, each clamping jaw arm comprises a first connecting arm, a second connecting arm and a third connecting arm, each first connecting arm comprises a first connecting arm base and a clamping jaw connected with the inner side end of the first connecting arm base, the outer side end of the first connecting arm base is rotatably connected with the top end of the second connecting arm through a first movable rotating shaft, and the bottom end of the second connecting arm is rotatably connected with the outer side end of the third connecting arm through a second movable rotating shaft;

the base part of the first connecting arm is rotatably connected with the clamping mechanism mounting seat through a first fixed rotating shaft in the outer side area of the clamping jaw, and the third connecting arm is rotatably connected with the clamping mechanism mounting seat through a second fixed rotating shaft in the inner side area of the second movable rotating shaft; the lifting disc comprises an upper blocking disc, a lower blocking disc and a connecting column, the central areas of the upper blocking disc and the lower blocking disc are connected through the connecting column, and the end part of the inner side of the third connecting arm is located between the upper blocking disc and the lower blocking disc;

the screw rod seat set up in the lifting disk below, be provided with the screw thread passageway on the screw rod seat, the top of screw rod connect in keep off the bottom of dish down, the bottom screw thread of screw rod connect in the screw thread passageway just the bottom of screw rod stretches out to screw thread passageway below, the bottom of screw rod is provided with manual rotary table.

Further, the bottom of the first connecting arm base is provided with a first groove, the top end of the second connecting arm is located in the first groove, and the first groove penetrates through the outer end face of the first connecting arm base.

Furthermore, a second groove is formed in the top of the third connecting arm, the bottom end of the second connecting arm is located in the second groove, and the second groove penetrates through the outer end face of the third connecting arm.

Further, the thickness of the inner side end of the third connecting arm is gradually reduced from the outside to the inside.

Further, the screw rod seat includes fixed block and connecting block, the screw thread passageway set up in on the connecting block, the fixed block connect in the both ends of connecting block, the fixed block passes through the bolt fastening in on the fixture mount pad.

Furthermore, a concave cavity is formed in the clamping mechanism mounting seat in the area corresponding to the manual rotating disc.

The utility model discloses following beneficial effect has: the utility model provides a pair of clamping mechanism of accurate cylindrical grinder of numerical control, through setting up the fixture mount pad, clamping device, the lifting disk, screw rod and screw rod seat, moreover, the steam generator is simple in structure, the accessible rotates the manual carousel of screw rod bottom, make the screw rod rise or descend along screw channel in the screw rod seat, thereby drive clamping device's first linking arm through the lifting disk, second linking arm and third linking arm action, realize pressing from both sides tightly or the release to the work piece through the clamping jaw on the first linking arm, the operation is swift convenient, the operating efficiency of pressing from both sides tight work piece has been promoted.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in 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 for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is the utility model provides a clamping mechanism's of accurate cylindrical grinder of numerical control stereograph schematic diagram.

Fig. 2 is the utility model provides a clamping mechanism's of accurate cylindrical grinder of numerical control clamping device schematic structure diagram.

Fig. 3 is the utility model provides a clamping mechanism's of accurate cylindrical grinder of numerical control screw rod seat structural sketch.

Illustration of the drawings: 1-a clamping mechanism mounting base; 2-a first connecting arm; 3-a second connecting arm; 4-a third linking arm; 5, lifting a plate; 6-screw rod; 7-screw seat; 11-a cavity; 21-a first connecting arm base; 22-a clamping jaw; 51-upper baffle disc; 52-lower catch plate; 53-connecting column; 61-manual rotating disc; 71-fixing block; 72-connecting block; 73-bolt; 211 — a first recess; 212-a first movable spindle; 213-a first stationary spindle; 411-second groove; 412-a second movable spindle; 413-a second stationary spindle; 721-a threaded passage; 100-workpiece.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art, in the drawings, the thicknesses of layers and regions are exaggerated for clarity, and the same devices are denoted by the same reference numerals, and thus the description thereof will be omitted.

As shown in fig. 1 and 3, an embodiment of the present invention provides a clamping mechanism of a numerical control precision cylindrical grinding machine, including: the clamping mechanism comprises a clamping mechanism mounting seat 1, a clamping device, a lifting disc 5, a screw 6 and a screw seat 7.

Specifically, the clamping device includes two jaw arms symmetrically arranged, the jaw arms include a first connecting arm 2, a second connecting arm 3, and a third connecting arm 4, and the first connecting arm 2 includes a first connecting arm base 21 and a jaw 22 connected to an inner end of the first connecting arm base 21. The first connecting arm base 21 is in the shape of a rectangular parallelepiped block, and the clamping jaw 22 may be in the shape of an arc and extend upward. The first connecting arm base 21 and the clamping jaw 22 are in one piece.

Specifically, the outer end of the first connecting arm base 21 is rotatably connected to the top end of the second connecting arm 3 through the first movable rotating shaft 212, and the bottom end of the second connecting arm 3 is rotatably connected to the outer end of the third connecting arm 4 through the second movable rotating shaft 412. The second connecting arm 3 is in the shape of a rectangular block.

Specifically, the first connecting arm base 21 is rotatably connected to the gripper mechanism mount 1 through the first fixed rotating shaft 213 at an outer region of the gripper 22, and the third connecting arm 4 is rotatably connected to the gripper mechanism mount 1 through the second fixed rotating shaft 413 at an inner region of the second movable rotating shaft 412.

Specifically, the lifting disc 5 includes an upper blocking disc 51, a lower blocking disc 52 and a connecting column 53, the central regions of the upper blocking disc 51 and the lower blocking disc 52 are connected through the connecting column 53, and the end of the inner side of the third connecting arm 4 is located between the upper blocking disc 51 and the lower blocking disc 52. The upper retaining disc 51 and the lower retaining disc 52 are disc-shaped structures with the same diameter, and the connecting column 53 can be connected with the upper retaining disc 51 and the lower retaining disc 52 by threads or welded. The thickness of the inner end of the third connecting arm 4 decreases gradually from the outside to the inside and extends to the area between the upper and

lower catch discs

51, 52.

Specifically, the screw seat 7 is disposed below the lifting disc 5, the screw seat 7 is provided with a threaded passage 721, the top of the screw 6 is connected to the bottom end of the lower baffle disc 52, the bottom of the screw 6 is in threaded connection with the threaded passage 721, the bottom of the screw 6 extends out to the lower side of the threaded passage 721, and the bottom of the screw 6 is provided with a manual rotating disc 61.

In the present embodiment, the bottom of the first connecting arm base 21 is provided with a first groove 211, the top end of the second connecting arm 3 is located in the first groove 211, and the first groove 211 penetrates through the outer end face of the first connecting arm base 21. The top of third linking arm 4 is provided with second recess 411, and the bottom of second linking arm 3 is located second recess 411, and second recess 411 runs through the outside terminal surface of third linking arm 4 to guarantee to carry out relative rotation in a flexible way between first linking arm 2, second linking arm 3 and the third linking arm 4.

In this embodiment, the screw base 7 includes a fixing block 71 and a connecting block 72, the screw channel 721 is disposed on the connecting block 72, the fixing block 71 is connected to both ends of the connecting block 72, and the fixing block 71 is fixed to the clamping mechanism mounting base 1 by a bolt 73. The clamping mechanism mounting base 1 is provided with a concave cavity 11 in the area corresponding to the manual rotating disc 61, so that enough space can be provided for an operator to hold the manual rotating disc 61 by hands.

The utility model discloses a clamping mechanism of accurate cylindrical grinder of numerical control's theory of operation as follows: the manual turntable 61 at the bottom of the screw 6 can be manually rotated, so that the screw 6 rises or falls along the threaded passage 721 in the screw seat 7, when the screw 6 rises, the lifting disc 5 is pushed to rise, thereby driving the third connecting arm 4 to rotate by taking the second fixed rotating shaft 413 as a shaft, the end of the inner side of the third connecting arm 4 rises, the end of the outer side of the third connecting arm 4 falls and drives the second connecting arm 3 to fall, the top of the second connecting arm 3 drives the first connecting arm 2 to rotate by taking the first fixed rotating shaft 213 as a shaft, the end of the outer side of the first connecting arm 2 falls, the clamping jaw 22 opens, and the workpiece 100 is released. When the screw 6 descends, the lifting disc 5 is pulled to descend, so that the third connecting arm 4 is driven to rotate around the second fixed rotating shaft 413, the inner side end of the third connecting arm 4 descends, the outer side end of the third connecting arm 4 ascends and drives the second connecting arm 3 to ascend, the top of the second connecting arm 3 drives the first connecting arm 2 to rotate around the first fixed rotating shaft 213, the outer side end of the first connecting arm 2 ascends, the clamping jaws 22 are fastened, the workpiece 100 is clamped, the operation is rapid and convenient, and the work efficiency of clamping the workpiece is improved.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A clamping mechanism for a CNC precision cylindrical grinding machine, characterized in that it comprises: a clamping mechanism mounting seat (1), a clamping device, a lifting plate (5), a screw rod (6) and a screw rod seat (7);

The clamping device comprises two symmetrically arranged clamping jaw arms, the clamping jaw arms comprise a first connection arm (2), a second connection arm (3) and a third connection arm (4), the first connection arm (4) The arm (2) comprises a first connecting arm base (21) and a clamping claw (22) connected with the inner end of the first connecting arm base (21), the outer end of the first connecting arm base (21) The upper end of the second connecting arm (3) is rotatably connected with the top end of the second connecting arm (3) through the first movable rotating shaft (212), and the bottom end of the second connecting arm (3) is connected with the third connecting arm (3) through the second movable rotating shaft (412). The outer end of the arm (4) is rotatably connected;

The first connecting arm base (21) is rotatably connected to the clamping mechanism mounting seat (1) through a first fixed rotating shaft (213) at the outer region of the clamping jaw (22), and the third connecting arm (4) The inner area of the second movable rotating shaft (412) is rotatably connected to the clamping mechanism mounting seat (1) through the second fixed rotating shaft (413); the lifting plate (5) includes an upper baffle plate (51), a lower baffle plate (52) and a connecting column (53), the upper baffle plate (51) and the central region of the lower baffle plate (52) are connected by the connecting column (53), the first baffle plate (52) The inner end of the three connecting arms (4) is located between the upper baffle plate (51) and the lower baffle plate (52);

The screw seat (7) is arranged below the lifting plate (5), a screw channel (721) is arranged on the screw seat (7), and the top of the screw (6) is connected to the lower baffle plate ( 52), the bottom of the screw (6) is threadedly connected to the screw channel (721) and the bottom end of the screw (6) protrudes below the screw channel (721). The bottom end of 6) is provided with a manual turntable (61).

2 . The clamping mechanism of a CNC precision cylindrical grinder according to claim 1 , wherein a first groove ( 211 ) is provided at the bottom of the first connecting arm base ( 21 ), and the first The top ends of the two connecting arms (3) are located in the first groove (211), and the first groove (211) penetrates the outer end surface of the first connecting arm base (21).

3. A clamping mechanism for a numerically controlled precision cylindrical grinder according to claim 2, wherein a second groove (411) is provided on the top of the third connecting arm (4), and the second The bottom end of the connecting arm (3) is located in the second groove (411), and the second groove (411) penetrates the outer end surface of the third connecting arm (4).

4 . The clamping mechanism of a CNC precision cylindrical grinder according to claim 3 , wherein the thickness of the inner end portion of the third connecting arm ( 4 ) gradually decreases from outside to inside. 5 .

5. A clamping mechanism for a CNC precision cylindrical grinder according to claim 4, characterized in that the screw seat (7) comprises a fixing block (71) and a connecting block (72), and the threaded channel ( 721) is arranged on the connecting block (72), the fixing block (71) is connected to both ends of the connecting block (72), and the fixing block (71) is fixed to the clip through bolts (73). Hold the mechanism mounting seat (1).

6 . The clamping mechanism of a numerically controlled precision cylindrical grinder according to claim 5 , wherein the clamping mechanism mounting seat ( 1 ) is provided with a recess in the corresponding area of the manual turntable ( 61 ). 7 . cavity (11).