CN110228029A

CN110228029A - A kind of hand clamping device for clamping test pieces

Info

Publication number: CN110228029A
Application number: CN201910378423.XA
Authority: CN
Inventors: 王永岩; 王勇; 王鸿伟; 李剑光; 葛强
Original assignee: Qingdao University of Science and Technology
Current assignee: Qingdao University of Science and Technology
Priority date: 2019-04-30
Filing date: 2019-04-30
Publication date: 2019-09-13

Abstract

The present invention relates to a kind of hand clamping devices for clamping test pieces, comprising: shell, cone fluted disc supporter, cone fluted disc, cone fluted disc bearing, bevel pinion I, bevel pinion I axis, bevel pinion I bearing, door, flange plate type connector, interior back taper fluted disc, interior teeth dish axle hold, pedestal fixing body, cylinder ring type connector, bevel pinion II, bevel pinion II axis, bevel pinion II bearing I, pedestal I, special claw I, circumferentially fixed frame I, bevel pinion II bearing I I, pedestal II, special claw II, circumferentially fixed frame II, self-locking device；It is cooperated by the direction-changing type pawl and ratchet of the self-locking device, complete the self-locking of the clamping device, pass through a series of transmission mechanism, the special claw I is set to complete the clamping work of test specimen inner wall, the special claw II is set to complete the clamping work of test specimen outer wall, it is simple with structure, compact, good manufacturability, it is easy to operate the advantages that.

Description

A kind of hand clamping device for clamping test pieces

Technical field

The present invention relates to a kind of clamping devices, particularly relate to a kind of hand clamping for clamping test pieces Device.

Background technique

Various clamping devices can be used in human lives and work, clamping device will be used wider and wider. Clamping device is used to fix processing object during referring to machine-building, is allowed to occupy correct position, to receive construction or inspection The device of survey, also known as fixture.In a broad sense, any process in technical process, for rapidly, easily and safely installing The device of workpiece, all can be described as clamping device.Clamping device is indispensable a kind of technological equipment in machining, it can rise Act below: guarantee reliablely and stablely reaches every requirement on machining accuracy；Shorten machining period, raises labour productivity；It reduces Production cost；Mitigate the labor intensity of operator；It can be processed by the operator of lower industrial grade；It can enlarger bed process Range.There are various clamping devices in the market, such as: welding fixture, inspection jig, assembling jig, machine tool fixture etc., But most of clamping device there is a problem of it is various, such as: for cylinder ring type test specimen, can only clamping test pieces outer wall, It is unable to the inner wall of clamping test pieces；Structure is complicated for clamping device, poor reliability, the low, bad adaptability of precision etc..To solve in the market Clamping device many drawbacks, the present invention devises that this is easy to operate, beautiful and generous, with high accuracy for clamping test pieces Hand clamping device.

Summary of the invention

The purpose of the present invention seeks to manufacture and design that a kind of structure is simple, compact, and good manufacturability is easy to operate, and precision is high, peace A kind of complete practical hand clamping device for clamping test pieces.

In order to achieve the above objectives, the technical solution adopted in the present invention is as follows: a kind of hand folder for clamping test pieces Tight device, comprising: shell, cone fluted disc supporter, cone fluted disc, cone fluted disc bearing, bevel pinion I, bevel pinion I axis, small bevel gear Wheel I bearing, door, flange plate type connector, interior back taper fluted disc, interior teeth dish axle are held, pedestal fixing body, cylinder ring type connect Body, bevel pinion II, bevel pinion II axis, bevel pinion II bearing I, pedestal I, special claw I, circumferentially fixed frame I, small bevel gear Take turns II bearing I I, pedestal II, special claw II, circumferentially fixed frame II, self-locking device；The cone fluted disc supporter passes through the cone Fluted disc bearing is connected with the cone fluted disc, and the cone fluted disc is meshed with the bevel pinion I, and the bevel pinion I passes through Spline is mutually fixedly connected with the bevel pinion I axis, and the bevel pinion I axis passes through the bevel pinion I bearing and described outer Shell phase connects；The cone fluted disc supporter is mutually permanently connected by screw and the door, the door by screw with The pedestal fixing body is mutually permanently connected, and the pedestal fixing body is fixed to each other with the cylinder ring type connector by screw Connection, the cylinder ring type connector are mutually permanently connected with the shell by screw；The cone fluted disc and the ring flange Formula connector is mutually permanently connected by screw, and the flange plate type connector is mutually solid by screw with the interior back taper fluted disc Fixed connection, the interior back taper fluted disc and the pedestal fixing body hold interconnection by interior teeth dish axle；The interior teeth Disk is meshed with the bevel pinion II, and the bevel pinion II and the bevel pinion II axis are fixed to each other company by spline It connects；One end of the bevel pinion II axis and the pedestal I are connected with each other by the bevel pinion II bearing I, the pedestal I It is mutually permanently connected with the pedestal fixing body by welding manner, one end of the bevel pinion II axis and the special claw I is together by a threaded connection, and the special claw I and circumferentially fixed frame I is slidably connected by clearance fit, the week It is mutually permanently connected to fixed frame I with the pedestal fixing body by welding manner；The other end of the bevel pinion II axis with The pedestal II is connected with each other by the bevel pinion II bearing I I, and the pedestal II and the pedestal fixing body pass through welding Mode is mutually permanently connected, and the other end of the bevel pinion II axis is together by a threaded connection with the special claw II, The special claw II and circumferentially fixed frame II is slidably connected by clearance fit, the circumferentially fixed frame II and the base Seat fixing body is mutually permanently connected by welding manner；The self-locking device between the shell and the bevel pinion I, The ratchet of the self-locking device is mounted on the bevel pinion I axis by spline, and the pedestal of the self-locking device passes through screw It is mutually permanently connected respectively with the shell and the cone fluted disc supporter, the direction-changing type pawl and the cone of the self-locking device Fluted disc supporter is slidably connected by clearance fit；The shell, the cone fluted disc supporter, the cone fluted disc, the cone tooth Dish axle holds, the door, the flange plate type connector, the interior back taper fluted disc, the interior teeth dish axle are held, the pedestal The axis of fixing body and the cylinder ring type connector is on same straight line；The bevel pinion I, the bevel pinion I axis, The bevel pinion I bearing, the bevel pinion II, the bevel pinion II axis, the bevel pinion II bearing I, the base Seat I, the special claw I, the circumferentially fixed frame I, the bevel pinion II bearing I I, the pedestal II, the special card Pawl II, the circumferentially fixed frame II and the self-locking device respectively have three sets, they are around described same straight line etc. point distribution.

Further, the shell is the cylindrical structure of inner hollow, and an end face of the cylindrical body is removed, separately One end face is provided with circular through hole I, opens that there are three the threaded holes for surrounding axis equal part around the circular through hole I, described outer One end for being provided with the threaded hole of shell is connected with one end of the cylinder ring type connector by screw；In the cylindrical body Side on be separated there are three circular through hole II, the axis of three circular through hole II is on same plane I, the plane I is parallel with two end faces, and the plane I is located at the side of the central symmetry plane of two end faces, and is proximate to removed described The side of end face；It is separated on the side of the cylindrical body there are three circular through hole III, three circular through hole III's Axis is on same plane II, and the plane II and plane I is symmetrical about the central symmetry plane of two end faces.

Further, the cone fluted disc supporter is located at the inside of one end of the shell, and one end of the shell is The removed one end in end face；The cone fluted disc supporter is flange plate type structure, by the removed inside circle ring disk I and both ends of the surface Hollow cylindrical body I is interconnected by welding, is separated at the edge of circle ring disk I there are three circular through hole IV, institute The direction-changing type pawl and the circular through hole IV for stating self-locking device are slidably connected by clearance fit, in the circle of inner hollow One end of cylinder I is provided with Step Circular slot, and the one end for being provided with Step Circular slot is one end far from the circle ring disk I.

Further, the self-locking device includes: pedestal, direction-changing type pawl, spring, ratchet；The pedestal is in inside Empty rectangular parallelepiped structure, and an end face is removed, other end is provided with circular through hole V, and the one side of the pedestal passes through screw It is fixedly mounted on the medial surface of the shell, the end face of the pedestal is fixedly mounted on the cone fluted disc supporter by screw The circle ring disk I outer edge；The direction-changing type pawl is located in the pedestal, by adjusting knob, elongate cylinder, disk and Wedge plate type spine tooth, which passes sequentially through to be screwed, to be installed together, the elongate cylinder of the direction-changing type pawl successively respectively with The circular through hole V of the pedestal of the circular through hole IV and self-locking device of the cone fluted disc supporter passes through gap Cooperation is slidably connected, and the elongate cylinder housing of the direction-changing type pawl has a spring, the direction-changing type pawl it is described Wedge plate type spine tooth and the ratchet, which cooperate, to be installed；One end of the spring and the pedestal are provided with circular through hole V One end is mutually permanently connected, and one end of the disk of the other end of the spring and the direction-changing type pawl is fixed to each other company It connects；The ratchet is mounted on one end of the bevel pinion I axis by spline, and is proximate to one end of the bevel pinion I.

Further, the flange plate type connector is flange plate type structure, by the cylinder of circle ring disk II and inner hollow Body II is interconnected by welding, and an end face of the cylindrical body II is removed, and other end is provided with circular hole, is provided with An end face for circular hole is the end face far from the circle ring disk II.

Further, the interior back taper fluted disc is interior low outer high cone fluted disc；The pedestal fixing body is class flange plate type Structure, by the circle of the removed inner hollow of the cylindrical body III and both ends of the surface of the removed inner hollow of circle ring disk III, both ends of the surface Cylinder IV passes sequentially through welding and interconnects.

Further, the both ends of the bevel pinion II axis have threaded hole, one end of the special claw I and institute The one end for stating special claw II has screw thread, and the other end is respectively round estrade structure, and centre is rectangular parallelepiped structure respectively；Institute The threaded hole of the screw thread of special claw I and one end of the bevel pinion II axis is stated by being threadedly engaged interconnection, the spy The cuboid interporal lacuna of the intermediate parallelepiped body portion of fabrication pawl I and the circumferentially fixed frame I are cooperatively connected, the special claw I Rotary table body end end face be arcuate structure, the rotary table body end of the special claw I be clamping test specimen one end；The special card The threaded hole of the other end of the screw thread of pawl II and the bevel pinion II axis is by being threadedly engaged interconnection, the special claw The cuboid interporal lacuna of the intermediate parallelepiped body portion of II and the circumferentially fixed frame II are cooperatively connected, the circle of the special claw II The end face at stage body end is arcuate structure, and the rotary table body end of the special claw II is to clamp one end of test specimen.

Further, one end of the bevel pinion I axis is provided with Hexagon hole, and one end of the bevel pinion I axis is One end of the bevel pinion I bearing is installed.

Implement a kind of hand clamping device for clamping test pieces of the present invention, the beneficial effect is that:

(1) a kind of hand clamping device for clamping test pieces of the present invention uses die nut when clamping test specimen inner wall The bevel pinion I axis, the bevel pinion I axis rotation are rotated counterclockwise, and then drive the bevel pinion I rotation；It is described The rotation of bevel pinion I drives the cone fluted disc rotation, and then drives the flange plate type connector rotation；The flange plate type The rotation of connector drives the interior back taper fluted disc rotation, and then drives the bevel pinion II rotation；The bevel pinion II Rotation drive bevel pinion II axis rotation, helical rotation is converted into linear motion, and then drives the special claw I work Linear motion makes the arcuate end of the special claw I far from central axis, moves towards test specimen inner wall, with described special The clamping work of test specimen is completed in the separate increase of the arcuate end of claw I；When clamping test specimen outer wall, with die nut up time Needle rotates the bevel pinion I axis, and after the transmission of above-mentioned transmission mechanism, the rotation of the interior back taper fluted disc drives described small Bevel gear II rotation, and then the bevel pinion II axis rotation is driven, helical rotation is converted into linear motion, and then described in drive Special claw II is for linear motion, makes the arcuate end of the special claw II close to central axis, moves towards test specimen outer wall, With the close increase of the arcuate end of the special claw II, the clamping work of test specimen is completed；It is simple with structure, compact, Good manufacturability, it is easy to operate the advantages that.

(2) a kind of hand clamping device for clamping test pieces, when clamping test specimen inner wall, along the direction-changing type spine The axis direction of the elongate cylinder of pawl with the adjusting knob of the portable direction-changing type pawl, and is rotated, is made The Wedge plate type spine tooth and the ratchet cooperate, and rotate counterclockwise the bevel pinion I axis can only, i.e., described special Claw I can only be moved to the direction far from central axis, to complete the self-locking of the clamping device；When clamping test specimen outer wall When, after the operation of self-locking device described above, so that the Wedge plate type spine tooth and the ratchet is cooperated, make described small Bevel gear I axis can only rotate clockwise, i.e., the described special claw II can only be moved to the direction close to central axis, to complete The clamping device it is self-locking, have the function of the clamping device self-locking.

Detailed description of the invention

Fig. 1 is a kind of outside drawing of the hand clamping device for clamping test pieces of the present invention；

Fig. 2 is a kind of decladding structure chart of the hand clamping device for clamping test pieces of the present invention；

Fig. 3 is a kind of decladding structural exploded view of the hand clamping device for clamping test pieces of the present invention；

Fig. 4 is a kind of clamping working principle diagram of the hand clamping device for clamping test pieces of the present invention；

Fig. 5 is a kind of structure chart of the self-locking device of the hand clamping device for clamping test pieces of the present invention；

Fig. 6 is a kind of X-Y scheme of the interior back taper fluted disc of the hand clamping device for clamping test pieces of the present invention；

In figure: shell -1, cone fluted disc supporter -2, cone fluted disc -3, cone fluted disc bearing -4, bevel pinion I-5, bevel pinion I axis -6, bevel pinion I bearing -7, door -8, flange plate type connector -9, interior back taper fluted disc -10, interior teeth dish axle hold - 11, pedestal fixing body -12, cylinder ring type connector -13, bevel pinion II-14, bevel pinion II axis -15, bevel pinion II axis Hold I-16, pedestal I-17, special claw I-18, circumferentially fixed frame I-19, bevel pinion II bearing I I-20, pedestal II-21, spy Fabrication pawl II-22, circumferentially fixed frame II-23, self-locking device -24, pedestal -241, direction-changing type pawl -242, spring -243, spine Wheel -244.

Specific embodiment

The present invention is further described through with reference to the accompanying drawing.

As shown in Fig. 1,2,3,4,5,6, a kind of hand clamping device for clamping test pieces, comprising: shell 1, cone tooth Disk supporter 2, cone fluted disc 3, cone fluted disc bearing 4, bevel pinion I5, bevel pinion I axis 6, bevel pinion I bearing 7, door 8, method Blue disc type connector 9, interior back taper fluted disc 10, interior teeth dish axle hold 11, pedestal fixing body 12, cylinder ring type connector 13, small Bevel gear II14, bevel pinion II axis 15, bevel pinion II bearing I 16, pedestal I17, special claw I18, circumferentially fixed frame I19, bevel pinion II bearing I I20, pedestal II21, special claw II22, circumferentially fixed frame II23, self-locking device 24；The cone Fluted disc supporter 2 is connected by the cone fluted disc bearing 4 with the cone fluted disc 3, the cone fluted disc 3 and bevel pinion I5 It is meshed, the bevel pinion I5 is fixedly connected by spline with 6 phase of bevel pinion I axis, and the bevel pinion I axis 6 is logical The bevel pinion I bearing 7 is crossed to be connected with each other with the shell 1；The cone fluted disc supporter 2 passes through screw and the door 8 It is mutually permanently connected, the door 8 is mutually permanently connected by screw with the pedestal fixing body 12, the pedestal fixing body 12 It is mutually permanently connected with the cylinder ring type connector 13 by screw, the cylinder ring type connector 13 and the shell 1 are logical Screw is crossed to be mutually permanently connected；The cone fluted disc 3 is mutually permanently connected with the flange plate type connector 9 by screw, described Flange plate type connector 9 is mutually permanently connected with the interior back taper fluted disc 10 by screw, the interior back taper fluted disc 10 with it is described Pedestal fixing body 12 holds 11 interconnections by interior teeth dish axle；The interior back taper fluted disc 10 and the bevel pinion II14 phase Engagement, the bevel pinion II14 are mutually permanently connected with the bevel pinion II axis 15 by spline；The bevel pinion II One end of axis 15 and the pedestal I17 are connected with each other by the bevel pinion II bearing I 16, the pedestal I17 and the base Seat fixing body 12 is mutually permanently connected by welding manner, one end of the bevel pinion II axis 15 and the special claw I18 It is together by a threaded connection, the special claw I18 and circumferentially fixed frame I19 is slidably connected by clearance fit, institute Circumferentially fixed frame I19 is stated to be mutually permanently connected with the pedestal fixing body 12 by welding manner；The bevel pinion II axis 15 The other end and the pedestal II21 be connected with each other by the bevel pinion II bearing I I20, the pedestal II21 and the base Seat fixing body 12 is mutually permanently connected by welding manner, the other end and the special claw of the bevel pinion II axis 15 II22 is together by a threaded connection, and the special claw II22 and the circumferentially fixed frame II23 are slided by clearance fit and connected It connects, the circumferentially fixed frame II23 is mutually permanently connected with the pedestal fixing body 12 by welding manner；The self-locking device 24 between the shell 1 and the bevel pinion I5, and the ratchet 244 of the self-locking device 24 is mounted on described by spline On bevel pinion I axis 6, the pedestal 241 of the self-locking device 24 is supported with the shell 1 and the cone fluted disc respectively by screw Body 2 is mutually permanently connected, and the direction-changing type pawl 242 of the self-locking device 24 and the cone fluted disc supporter 2 pass through clearance fit It is slidably connected；The shell 1, the cone fluted disc supporter 2, the cone fluted disc 3, the cone fluted disc bearing 4, the door 8, institute It states flange plate type connector 9, the interior back taper fluted disc 10, the interior teeth dish axle and holds 11, the pedestal fixing body 12 and institute The axis of cylinder ring type connector 13 is stated on same straight line；It is the bevel pinion I5, the bevel pinion I axis 6, described small Bevel gear I bearing 7, the bevel pinion II14, the bevel pinion II axis 15, the bevel pinion II bearing I 16, the base Seat I17, the special claw I18, the circumferentially fixed frame I19, the bevel pinion II bearing I I20, the pedestal II21, The special claw II22, the circumferentially fixed frame II23 and the self-locking device 24 respectively have three sets, they are around described same Straight line etc. point distribution.

Further, the shell 1 is the cylindrical structure of inner hollow, and an end face of the cylindrical body is removed, Other end is provided with circular through hole I, is opened around the circular through hole I there are three the threaded hole for surrounding axis equal part, described One end for being provided with the threaded hole of shell 1 is connected with one end of the cylinder ring type connector 13 by screw；Described Circular through hole II there are three being separated on the side of cylindrical body, the axis of three circular through hole II is on same plane I, institute State that plane I is parallel with two end faces, the plane I is located at the side of the central symmetry plane of two end faces, and is proximate to be removed The end face side；Circular through hole III there are three being separated on the side of the cylindrical body, three circular through holes The axis of III is on same plane II, and the plane II and plane I is faced about the central symmetry of two end faces Claim；The cone fluted disc supporter 2 is located at the inside of one end of the shell 1, and one end of the shell 1 is that end face is removed One end；The cone fluted disc supporter 2 is flange plate type structure, by the cylinder of circle ring disk I and both ends of the surface removed inner hollow Body I is interconnected by welding, is separated at the edge of circle ring disk I there are three circular through hole IV, the self-locking device 24 direction-changing type pawl 242 is slidably connected with the circular through hole IV by clearance fit, in the cylindrical body I of inner hollow One end one end for being provided with Step Circular slot, and being provided with Step Circular slot be one end far from the circle ring disk I.

Further, the self-locking device 24 includes: pedestal 241, direction-changing type pawl 242, spring 243, ratchet 244；Institute The rectangular parallelepiped structure that pedestal 241 is inner hollow is stated, and an end face is removed, other end is provided with circular through hole V, the base The one side of seat is fixedly mounted on the medial surface of the shell 1 by screw, and the end face of the pedestal 241 is fixed by screw It is mounted on the outer edge of the circle ring disk I of the cone fluted disc supporter 2；The direction-changing type pawl 242 is located at the pedestal 241 It is interior, it is passed sequentially through to be screwed and be installed together by adjusting knob, elongate cylinder, disk and Wedge plate type spine tooth, the deflecting The elongate cylinder of formula pawl 242 successively respectively with the cone circular through hole IV of fluted disc supporter 2 and described self-locking The circular through hole V of the pedestal 241 of device 24 is slidably connected by clearance fit, the direction-changing type pawl 242 it is described thin Long cylinder housing has the spring 243, and the Wedge plate type spine tooth of the direction-changing type pawl 242 and the ratchet 244 are mutually It is coupled；One end of the spring 243 and one end for being provided with circular through hole V of the pedestal 241 are mutually permanently connected, institute The one end for stating the other end and the disk of the direction-changing type pawl 242 of spring 243 is mutually permanently connected；The ratchet 244 It is mounted on one end of the bevel pinion I axis 6 by spline, and is proximate to one end of the bevel pinion I5.

Further, the flange plate type connector 9 is flange plate type structure, by the cylinder of circle ring disk II and inner hollow Body II is interconnected by welding, and an end face of the cylindrical body II is removed, and other end is provided with circular hole, is provided with An end face for circular hole is the end face far from the circle ring disk II；The interior back taper fluted disc 10 is interior low outer high cone tooth Disk；The pedestal fixing body 12 is class flange plate type structure, by the cylindrical body of the removed inner hollow of circle ring disk III, both ends of the surface III and the cylindrical body IV of the removed inner hollow of both ends of the surface pass sequentially through welding and interconnect；The bevel pinion II The both ends of axis 15 have a threaded hole, and one end of one end of the special claw I18 and the special claw II22 are opened respectively There is screw thread, the other end is respectively round estrade structure, and centre is rectangular parallelepiped structure respectively；The screw thread of the special claw I18 and institute The threaded hole of one end of bevel pinion II axis 15 is stated by being threadedly engaged interconnection, the centre of the special claw I18 is rectangular The cuboid interporal lacuna of body portion and the circumferentially fixed frame I19 are cooperatively connected, the end of the rotary table body end of the special claw I18 Face is arcuate structure, and the rotary table body end of the special claw I18 is to clamp one end of test specimen；The screw thread of the special claw II22 Pass through with the threaded hole of the other end of the bevel pinion II axis 15 and be threadedly engaged interconnection, in the special claw II22 Between the cuboid interporal lacuna of parallelepiped body portion and the circumferentially fixed frame II23 be cooperatively connected, the rotary table of the special claw II22 The end face of body end is arcuate structure, and the rotary table body end of the special claw II22 is to clamp one end of test specimen；The bevel pinion I One end of axis 6 is provided with Hexagon hole, and one end of the bevel pinion I axis 6 is the one end for installing the bevel pinion I bearing 7.

As shown in Fig. 1,2,3,4,5,6, a kind of working method of the hand clamping device for clamping test pieces of the present invention Specific step is as follows:

It is installed according to installation requirement, the cone fluted disc supporter 2 is passed through the cone fluted disc bearing 4 and the cone fluted disc 3 It is connected, the cone fluted disc 3 is meshed with the bevel pinion I5, and the bevel pinion I5 passes through spline and the bevel pinion 6 phase of I axis is fixedly connected, and the bevel pinion I axis 6 is connected with each other by the bevel pinion I bearing 7 with the shell 1；By institute It states cone fluted disc supporter 2 to be mutually permanently connected by screw with the door 8, the door 8 is pacified by screw and the pedestal Dress body 12 is mutually permanently connected, and the pedestal fixing body 12 and the cylinder ring type connector 13 are fixed to each other company by screw It connects, the cylinder ring type connector 13 is mutually permanently connected with the shell 1 by screw；The cone fluted disc 3 and the method Blue disc type connector 9 is mutually permanently connected by screw, and the flange plate type connector 9 passes through spiral shell with the interior back taper fluted disc 10 Nail is mutually permanently connected, and the interior back taper fluted disc 10 holds the interconnection of 11 phases by interior teeth dish axle with the pedestal fixing body 12 It connects；The interior back taper fluted disc 10 is meshed with the bevel pinion II14, the bevel pinion II14 and the bevel pinion II axis 15 is mutually permanently connected by spline；One end of the bevel pinion II axis 15 is passed through with the pedestal I17 described small Bevel gear II bearing I 16 is connected with each other, and the pedestal I17 and the pedestal fixing body 12 are fixed to each other company by welding manner It connects, one end of the bevel pinion II axis 15 is together by a threaded connection with the special claw I18, the special claw The I18 and circumferentially fixed frame I19 is slidably connected by clearance fit, the circumferentially fixed frame I19 and the pedestal fixing body 12 are mutually permanently connected by welding manner；The other end of the bevel pinion II axis 15 and the pedestal II21 are passed through described Bevel pinion II bearing I I20 is connected with each other, and the pedestal II21 is fixed to each other with the pedestal fixing body 12 by welding manner Connection, the other end of the bevel pinion II axis 15 is together by a threaded connection with the special claw II22, described special The claw II22 and circumferentially fixed frame II23 is slidably connected by clearance fit, the circumferentially fixed frame II23 and the pedestal Fixing body 12 is mutually permanently connected by welding manner；The self-locking device 24 is placed in the shell 1 and the small bevel gear It takes turns between I5, the ratchet 244 of the self-locking device 24 is mounted on the bevel pinion I axis 6 by spline, the self-locking device 24 pedestal 241 is mutually permanently connected with the shell 1 and the cone fluted disc supporter 2 respectively by screw, the self-locking dress The direction-changing type pawl 242 and the cone fluted disc supporter 2 for setting 24 are slidably connected by clearance fit；Make the shell 1, the cone Fluted disc supporter 2, the cone fluted disc 3, the cone fluted disc bearing 4, the door 8, the flange plate type connector 9, it is described in Back taper fluted disc 10, the interior teeth dish axle hold the axis of 11, the pedestal fixing body 12 and the cylinder ring type connector 13 On same straight line；Make the bevel pinion I5, the bevel pinion I axis 6, the bevel pinion I bearing 7, the conelet Gear II14, the bevel pinion II axis 15, the bevel pinion II bearing I 16, the pedestal I17, the special claw I18, the circumferentially fixed frame I19, the bevel pinion II bearing I I20, the pedestal II21, the special claw II22, institute Stating circumferentially fixed frame II23 and the self-locking device 24 respectively has three sets, they are around described same straight line etc. point distribution；Make institute State shell 1, the cone fluted disc supporter 2, the door 8, the pedestal fixing body 12 and 13 groups of cylinder ring type connector described At stator system, during stepping up test specimen, stator system does not rotate around central axis；Make the cone fluted disc 3, described Flange plate type connector 9 and the interior back taper fluted disc 10 form rotor-support-foundation system, and during stepping up test specimen, rotor-support-foundation system is in Mandrel line rotates.

When clamping test specimen inner wall, along the axis direction of the elongate cylinder of the direction-changing type pawl 242, use is portable The adjusting knob of the direction-changing type pawl 242 is played, and is rotated, the Wedge plate type spine tooth and the ratchet 244 are made It cooperates, rotate counterclockwise the bevel pinion I axis 6 can only, i.e., the described special claw I18 can only be to far from central axis Direction movement, to complete the self-locking of the clamping device.

Rotate the bevel pinion I axis 6 counterclockwise with die nut, the bevel pinion I axis 6 rotates, and then drives institute State bevel pinion I5 rotation；The rotation of the bevel pinion I5 drives the cone fluted disc 3 to rotate, and then drives the flange plate type Connector 9 rotates；The rotation of the flange plate type connector 9 drives the interior back taper fluted disc 10 to rotate, and then drives described small Bevel gear II14 rotation；The rotation of the bevel pinion II14 drives the bevel pinion II axis 15 to rotate, helical rotation conversion It to move along a straight line, and then drives the special claw I18 for linear motion, keeps the arcuate end of the special claw I18 separate Central axis moves towards test specimen inner wall, with the separate increase of the arcuate end of the special claw I18, completes test specimen Clamp work.

When clamping test specimen outer wall, along the axis direction of the elongate cylinder of the direction-changing type pawl 242, use is portable The adjusting knob of the direction-changing type pawl 242 is played, and is rotated, the Wedge plate type spine tooth and the ratchet 244 are made It cooperates, rotate clockwise the bevel pinion I axis 6 can only, i.e., the described special claw II22 can only be to close to central axis The direction of line moves, to complete the self-locking of the clamping device.

The bevel pinion I axis 6 is rotated clockwise with die nut, it is described interior after the transmission of above-mentioned transmission mechanism The rotation of back taper fluted disc 10 drives the bevel pinion II14 rotation, and then the bevel pinion II axis 15 is driven to rotate, spiral It is converted into linear motion, and then drives the special claw II22 for linear motion, makes the arc of the special claw II22 Shape end is moved towards test specimen outer wall close to central axis, with the close increase of the arcuate end of the special claw II22, Complete the clamping work of test specimen.

When unclamping test specimen inner wall, along the axis direction of the elongate cylinder of the direction-changing type pawl 242, use is portable The adjusting knob of the direction-changing type pawl 242 is played, and is rotated, the Wedge plate type spine tooth and the ratchet 244 are made It cooperates, the bevel pinion I axis 6 is enable to rotate clockwise, i.e., the described special claw I18 can be to the side close to central axis To movement, to complete the unlock setting of the clamping device.

The bevel pinion I axis 6 is rotated clockwise with die nut, the bevel pinion I axis 6 rotates, and then drives institute State bevel pinion I5 rotation；The rotation of the bevel pinion I5 drives the cone fluted disc 3 to rotate, and then drives the flange plate type Connector 9 rotates；The rotation of the flange plate type connector 9 drives the interior back taper fluted disc 10 to rotate, and then drives described small Bevel gear II14 rotation；The rotation of the bevel pinion II14 drives the bevel pinion II axis 15 to rotate, helical rotation conversion It to move along a straight line, and then drives the special claw I18 for linear motion, keeps the arcuate end of the special claw I18 close Central axis moves backwards to test specimen inner wall, with the close increase of the arcuate end of the special claw I18, completes test specimen Unclamp work.

When unclamping test specimen outer wall, along the axis direction of the elongate cylinder of the direction-changing type pawl 242, use is portable The adjusting knob of the direction-changing type pawl 242 is played, and is rotated, the Wedge plate type spine tooth and the ratchet 244 are made It cooperates, the bevel pinion I axis 6 is enable to rotate counterclockwise, i.e., the described special claw II22 can be to separate central axis Direction movement, to complete the unlock setting of the clamping device.

Rotate the bevel pinion I axis 6 counterclockwise with die nut, it is described interior after the transmission of above-mentioned transmission mechanism The rotation of back taper fluted disc 10 drives the bevel pinion II14 rotation, and then the bevel pinion II axis 15 is driven to rotate, spiral It is converted into linear motion, and then drives the special claw II22 for linear motion, makes the arc of the special claw II22 Shape end is moved backwards to test specimen outer wall far from central axis, with the separate increase of the arcuate end of the special claw II22, Complete the release work of test specimen.

The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.

Claims

1. a kind of hand clamping device for clamping test pieces characterized by comprising shell (1), cone fluted disc supporter (2), fluted disc (3), cone fluted disc bearing (4), bevel pinion I (5), bevel pinion I axis (6), bevel pinion I bearing (7), door are bored (8), flange plate type connector (9), interior back taper fluted disc (10), interior teeth dish axle hold (11), pedestal fixing body (12), cylindrical enclosure Formula connector (13), bevel pinion II (14), bevel pinion II axis (15), bevel pinion II bearing I (16), pedestal I (17), spy Fabrication pawl I (18), circumferentially fixed frame I (19), bevel pinion II bearing I I (20), pedestal II (21), special claw II (22), week To fixed frame II (23), self-locking device (24)；The cone fluted disc supporter (2) passes through the cone fluted disc bearing (4) and the cone Fluted disc (3) is connected, and the cone fluted disc (3) is meshed with the bevel pinion I (5), and the bevel pinion I (5) passes through spline It is mutually fixedly connected with the bevel pinion I axis (6), the bevel pinion I axis (6) passes through the bevel pinion I bearing (7) and institute State shell (1) interconnection；The cone fluted disc supporter (2) is mutually permanently connected by screw with the door (8), the gear Lid (8) is mutually permanently connected by screw with the pedestal fixing body (12), the pedestal fixing body (12) and the cylindrical enclosure Formula connector (13) is mutually permanently connected by screw, and the cylinder ring type connector (13) and the shell (1) pass through screw It is mutually permanently connected；The cone fluted disc (3) is mutually permanently connected with the flange plate type connector (9) by screw, the method Blue disc type connector (9) is mutually permanently connected with the interior back taper fluted disc (10) by screw, the interior back taper fluted disc (10) with The pedestal fixing body (12) is held (11) by interior teeth dish axle and is connected with each other；The interior back taper fluted disc (10) and the conelet Gear II (14) is meshed, and the bevel pinion II (14) and the bevel pinion II axis (15) are fixed to each other company by spline It connects；One end of the bevel pinion II axis (15) is mutually interconnected with the pedestal I (17) by the bevel pinion II bearing I (16) It connects, the pedestal I (17) is mutually permanently connected with the pedestal fixing body (12) by welding manner, the bevel pinion II axis (15) one end is together by a threaded connection with the special claw I (18), and the special claw I (18) and the circumferential direction are solid Determine frame I (19) to be slidably connected by clearance fit, the circumferentially fixed frame I (19) and the pedestal fixing body (12) pass through welding Mode is mutually permanently connected；The other end of the bevel pinion II axis (15) and the pedestal II (21) pass through the bevel pinion II bearing I I (20) is connected with each other, and the pedestal II (21) and the pedestal fixing body (12) are fixed to each other company by welding manner It connects, the other end of the bevel pinion II axis (15) is together by a threaded connection with the special claw II (22), the spy Fabrication pawl II (22) is slidably connected with the circumferentially fixed frame II (23) by clearance fit, the circumferentially fixed frame II (23) with The pedestal fixing body (12) is mutually permanently connected by welding manner；The self-locking device (24) be located at the shell (1) and Between the bevel pinion I (5), the ratchet (244) of the self-locking device (24) is mounted on the bevel pinion I axis by spline (6) on, the pedestal (241) of the self-locking device (24) by screw respectively with the shell (1) and the cone fluted disc supporter (2) it is mutually permanently connected, between the direction-changing type pawl (242) of the self-locking device (24) and the cone fluted disc supporter (2) pass through Gap cooperation is slidably connected；The shell (1), the cone fluted disc supporter (2), the cone fluted disc (3), the cone fluted disc bearing (4), the door (8), the flange plate type connector (9), the interior back taper fluted disc (10), the interior teeth dish axle are held (11), the axis of the pedestal fixing body (12) and the cylinder ring type connector (13) is on same straight line；The conelet Gear I (5), the bevel pinion I axis (6), the bevel pinion I bearing (7), the bevel pinion II (14), the conelet Gear II axis (15), the bevel pinion II bearing I (16), the pedestal I (17), the special claw I (18), the circumferential direction Fixed frame I (19), the bevel pinion II bearing I I (20), the pedestal II (21), the special claw II (22), the week Respectively there are three sets to fixed frame II (23) and the self-locking device (24), they are around described same straight line etc. point distribution.

2. a kind of hand clamping device for clamping test pieces as described in claim 1, which is characterized in that the shell It (1) is the cylindrical structure of inner hollow, and an end face of the cylindrical body is removed, other end is provided with circular through hole I, It is opened around the circular through hole I there are three the threaded hole for surrounding axis equal part, the shell (1) is provided with the threaded hole One end is connected with one end of the cylinder ring type connector (13) by screw；Divide equally on the side of the cylindrical body and is provided with Three circular through hole II, for the axis of three circular through hole II on same plane I, the plane I is parallel with two end faces, The plane I is located at the side of the central symmetry plane of two end faces, and is proximate to the side of the removed end face；Described Circular through hole III there are three being separated on the side of cylindrical body, the axis of three circular through hole III is in same plane II On, and the plane II and plane I is symmetrical about the central symmetry plane of two end faces.

3. a kind of hand clamping device for clamping test pieces as claimed in claim 2, which is characterized in that the cone fluted disc Supporter (2) is located at the inside of one end of the shell (1), and one end of the shell (1) is the removed one end in end face；Institute Stating cone fluted disc supporter (2) is flange plate type structure, is led to by the cylindrical body I of circle ring disk I and both ends of the surface removed inner hollow It crosses welding to interconnect, be separated at the edge of circle ring disk I there are three circular through hole IV, the self-locking device (24) Direction-changing type pawl (242) is slidably connected with the circular through hole IV by clearance fit, in the cylindrical body I of inner hollow One end is provided with Step Circular slot, and the one end for being provided with Step Circular slot is one end far from the circle ring disk I.

4. a kind of hand clamping device for clamping test pieces as claimed in claim 3, which is characterized in that the self-locking dress Setting (24) includes: pedestal (241), direction-changing type pawl (242), spring (243), ratchet (244)；The pedestal (241) is inside Hollow rectangular parallelepiped structure, and an end face is removed, other end is provided with circular through hole V, and the one side of the pedestal passes through spiral shell Nail is fixedly mounted on the medial surface of the shell (1), and the end face of the pedestal (241) is fixedly mounted on the cone by screw The outer edge of the circle ring disk I of fluted disc supporter (2)；The direction-changing type pawl (242) is located in the pedestal (241), by Adjusting knob, elongate cylinder, disk and Wedge plate type spine tooth are passed sequentially through to be screwed and be installed together, the direction-changing type pawl (242) the elongate cylinder successively respectively with it is described cone fluted disc supporter (2) the circular through hole IV and the self-locking dress The circular through hole V for setting the pedestal (241) of (24) is slidably connected by clearance fit, the institute of the direction-changing type pawl (242) Stating elongate cylinder housing has the spring (243), the Wedge plate type spine tooth and the ratchet of the direction-changing type pawl (242) (244) cooperate installation；One end phase for being provided with circular through hole V of one end of the spring (243) and the pedestal (241) It is mutually fixedly connected, the other end of the spring (243) and one end of the disk of the direction-changing type pawl (242) are fixed to each other Connection；The ratchet (244) is mounted on one end of the bevel pinion I axis (6) by spline, and is proximate to the bevel pinion One end of I (5).

5. a kind of hand clamping device for clamping test pieces as claimed in claim 4, which is characterized in that the ring flange Formula connector (9) is flange plate type structure, is interconnected on one by welding by the circle ring disk II and cylindrical body II of inner hollow It rises, and an end face of the cylindrical body II is removed, other end is provided with circular hole, and opening a round-meshed end face is far from institute State an end face of circle ring disk II.

6. a kind of hand clamping device for clamping test pieces as claimed in claim 5, which is characterized in that the interior back taper Fluted disc (10) is interior low outer high cone fluted disc；The pedestal fixing body (12) is class flange plate type structure, by circle ring disk III, both ends The cylindrical body IV of the removed inner hollow of the cylindrical body III and both ends of the surface of the removed inner hollow in face passes sequentially through welding phase Interconnection is connected together.

7. a kind of hand clamping device for clamping test pieces as claimed in claim 6, which is characterized in that the small bevel gear The both ends of wheel II axis (15) have a threaded hole, one end of the special claw I (18) and the special claw II (22) One end has screw thread, and the other end is respectively round estrade structure, and centre is rectangular parallelepiped structure respectively；The special claw I (18) threaded hole of one end of screw thread and the bevel pinion II axis (15) is by being threadedly engaged interconnection, the special card The intermediate parallelepiped body portion of pawl I (18) and the cuboid interporal lacuna of the circumferentially fixed frame I (19) are cooperatively connected, the special card The end face of the rotary table body end of pawl I (18) is arcuate structure, and the rotary table body end of the special claw I (18) is clamp test specimen one End；The threaded hole of the screw thread of the special claw II (22) and the other end of the bevel pinion II axis (15), which passes through, to be threadedly engaged It is connected with each other, between the intermediate parallelepiped body portion of the special claw II (22) and the rectangular body opening of the circumferentially fixed frame II (23) Gap is cooperatively connected, and the end face of the rotary table body end of the special claw II (22) is arcuate structure, the special claw II (22) Rotary table body end is to clamp one end of test specimen.

8. a kind of hand clamping device for clamping test pieces as claimed in claim 7, which is characterized in that the small bevel gear One end of wheel I axis (6) is provided with Hexagon hole, and one end of the bevel pinion I axis (6) is to install the bevel pinion I bearing (7) one end.