CN111781073A - Multi-axis linkage metal wire torsion test device - Google Patents

Abstract

The invention provides a multi-axis linkage metal wire torsion test device, which comprises a T-shaped platen, a controller, a speed reducing motor, a servo motor and a transmission mechanism, wherein the T-shaped platen, the controller, the speed reducing motor, the servo motor and the transmission mechanism are arranged on a rack; the accuracy and the efficiency of the torsion test can be improved and enhanced on a plurality of layers, the test period is shortened, and the economic benefit is improved.

Description

A multi-axis linkage metal wire torsion test device

technical field

The invention relates to a torsion test device, in particular to a multi-axis linkage metal wire torsion test device.

Background technique

Before the metal wire can be put into the market, it needs to go through a detailed quality test before it can enter the market. The torsional fatigue strength is an important indicator of its inevitable detection. The torsional performance is related to the service life of the steel wire, and has a great influence on the yield of the subsequent rope making process. Practice has proved that most of the fractures in the twisting process are caused by the torsional performance of the metal wire that cannot meet the required material toughness. of. In the detection process, the torsion test is an important method to effectively evaluate the torsional performance of the metal wire. The torsion test can reflect the deformation capacity and toughness of the sample. Under the same conditions, the number of torsion turns of the sample is large, which indicates that the sample has good deformation capacity and high toughness; while the number of torsion turns of the sample is small, it shows that the sample has poor deformation capacity and low toughness.

Most of the torsional fatigue testing equipment used by domestic scientific research, inspection and testing institutions follows the JB/T9370-2015 standard, and uses a uniaxial system to test, record and analyze metal or non-metal wire samples of different diameters one by one. However, there are many problems in the current wire torsion test system: a) Only a single metal wire can be tested, and the test efficiency is low; b) During the test process, the coaxial accuracy of the steel wire needs to be adjusted manually, and the wire clamp is manually assembled, and the clamping force Human control is required, the influence of random responses on the test results cannot be controlled, and the repeatability is poor; c) There is no automatic counting device, and there are random factors in manual counting; d) In the face of metal wires of different diameters, the adaptive ability of the test system is poor; e) The clamping and installation of the wire basically requires manual operation, and the test process is time-consuming and labor-intensive.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a multi-axis linkage metal wire torsion test device, which solves the above-mentioned defects of the background technology due to the lack of special equipment, improves the experimental efficiency and accuracy in the metal wire test process, improves the automation level of the process, reduces the Manpower wastage.

In order to achieve the above purpose, the technical solution provided by the present invention is: a multi-axis linkage metal wire torsion test device, comprising a T-shaped table plate, a controller, a deceleration motor, a servo motor and a transmission mechanism arranged on a frame, and the controller The rotation of the deceleration motor is controlled by the servo motor, and the deceleration motor drives the transmission mechanism, and also includes a position fixing seat, a constant tension tensioning device, a sliding end steel wire clamping module and a connecting rope positioning module. The transmission mechanism includes a driving gear and a number of driven gears. The gears are externally engaged with several driven gears at the same time, and each driven gear is fixedly provided with a three-jaw chuck; the sliding end steel wire clamping module includes a slide plate and a number of three-jaw chucks movably fixed on the slide plate. The three-jaw chuck on the driven gear corresponds to the axial concentricity, the slide plate is vertical and is slidably adapted to the T-shaped table; the connecting rope positioning module includes a positioning plate, and the positioning plate is provided with a coaxial corresponding to the three-jaw chuck on the slide plate. A number of positioning through holes, the positioning plate is vertical and is slidably adapted to the T-shaped platen; the constant tension tensioning device includes a number of connecting ropes, directional wheels and weights, the connecting ropes pass through the positioning through holes of the positioning plate respectively, and one end is connected to the sliding plate The other end is connected to the weight through the directional wheel, and the transmission mechanism, the sliding end steel wire clamping module and the connecting rope positioning module are respectively fixed on the T-shaped platform by the position fixing seat.

The three-jaw chuck on the slide plate is movably fixed to the slide plate through a guide shaft and a guide sleeve. One end of the guide shaft is connected to the three-jaw chuck, and the other end is connected to a connecting rope. The guide sleeve and the slide plate are penetrated and fixed, and the guide shaft and the guide sleeve are arranged between There are card slots and card pins, an inductive switch is arranged on the guide sleeve, and an inductive sheet adapted to the position of the inductive switch is arranged on the guide shaft, and the inductive sheet contacts the inductive switch and sends a signal to the controller.

The connecting rope positioning module also includes a rope-sparing rod. The rope-sighting rod is provided with through holes equidistant with the number of positioning holes, the positions of the through holes correspond to the positions of the directional wheels, and the connecting rope passes through the through holes.

The connecting rope positioning module also includes a guide piece, the guide piece includes a copper convex circular tube and an open bayonet, the outer wall of the small diameter end of the convex circular tube is provided with an annular clamping groove, and both ends of the inner wall are provided with a bell mouth, and the convex circular tube is respectively movable Through the positioning hole and the through hole, the convex circular tube is movably fixed through the opening bayonet to clamp the annular bayonet slot.

The test device also includes a PC host computer, which communicates with the controller, the controller is a PLC or a single-chip controller, and the controller has a liquid crystal panel.

The three-jaw chuck adopts a 360-degree disc-type three-jaw chuck.

The T-shaped platen is provided with several T-shaped grooves, and the grooves are slidably adapted to the transmission mechanism, the positioning plate and the sliding plate.

The transmission mechanism, the sliding end steel wire clamping module and the connecting rope positioning module are respectively slid and fixed with the T-shaped platen through the respective integrally provided position fixing bases.

The beneficial effect of the invention is that the multi-axis linkage metal wire torsion test device can 1) improve and improve the accuracy and efficiency of the torsion test at multiple levels during the metal wire test process; 2) the multi-axis linkage test can automatically record, analyze and judge the test data. , reducing the test cycle and improving the efficiency; 3) The whole process adopts an automatic assembly scheme, which improves the test accuracy and repeatability of the test, reduces manual errors, and improves economic benefits.

Description of drawings

1 is a schematic structural diagram of an embodiment of the present invention;

2 is a schematic structural diagram of a three-jaw chuck according to an embodiment of the present invention;

3 is a schematic diagram of the positions of the induction switch and the induction sheet when the metal wire is not disconnected according to the embodiment of the present invention;

4 is a schematic diagram of the positions of the induction switch and the induction sheet when the metal wire is disconnected according to the embodiment of the present invention;

5 is a schematic diagram of a transmission mechanism according to an embodiment of the present invention;

6 is a schematic structural diagram of a T-shaped platen according to an embodiment of the present invention;

7 is a schematic structural diagram of a connecting rope positioning module according to an embodiment of the present invention;

8 is a schematic structural diagram of a convex circular tube of a guide member according to an embodiment of the present invention;

Among them: 1- transmission mechanism; 2- sliding end steel wire clamping module; 3- connecting rope positioning module; 4- position fixing seat; 5- gear motor; 6- constant tension tension device; 7- driving gear; 8- slave Moving gear; 9-Three-jaw chuck; 10-Induction plate; 11-Induction switch; 12-Guide sleeve; 13-Guide shaft; 14-Connecting rope; 15-Guide piece; ; 18 - Weight.

Detailed ways

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Embodiment As shown in Figure 1, Figure 2, Figure 3, Figure 4, Figure 5, Figure 6, Figure 7 and Figure 8, this embodiment provides a multi-axis linkage metal wire torsion test device, including a PC host computer, set in Safety cover on the rack, T-type table, PLC controller, gear motor 5, servo driver, servo motor and transmission mechanism, the controller controls the speed and angle of the gear motor through the servo motor, and the gear motor is connected to the transmission mechanism 1, which also It includes a position fixing seat 4, a constant tension tensioning device 6, a sliding end steel wire clamping module 2 and a connecting rope positioning module 3. The transmission mechanism 1 includes a driving gear 7 and 6 driven gears 8. The driving gear 7 is equidistant and symmetrical at the same time. 6 driven gears 8 are engaged with each other, and each driven gear 8 is fixedly provided with a three-claw chuck 9;

The sliding end steel wire clamping module 2 includes a sliding plate and 6 three-jaw clamping discs 9 movably fixed on the sliding plate. And it can be slidably adapted to the T-shaped platen provided with the T-shaped groove;

The connecting rope positioning module 3 includes a positioning plate, a rope rod 16 and a guide member 15. The positioning plate is provided with six positioning through holes corresponding to the three-jaw chuck 9 on the slide plate. The positioning plate is vertical and is suitable for sliding with the T-shaped table. The rope rod 16 is provided with equidistant through holes that match the number of positioning holes, and the position of the through holes corresponds to the position of the directional wheel; the guide member 15 includes a convex circular tube and an opening bayonet, and the outer wall of the small diameter end of the convex circular tube is provided with Ring-shaped card slot, two ends of the inner wall are provided with bell mouths, the convex round tube movably penetrates into the positioning hole and the through hole respectively, and the annular card groove is movably fixed by the opening bayonet;

The constant tension tensioning device 6 includes 6 connecting ropes 14, 6 directional wheels 17 and 6 weights 18. The torsion and tension are determined by the weight of the weights 18, which can significantly improve the test torque accuracy. The connecting ropes 14 pass through the positioning plates respectively. One end of the guide member 15 is connected to the three-jaw chuck 9 on the slide plate, the other end passes through the guide member 15 of the rope rod 16, the directional wheel 17 is connected to the weight 18, and the transmission mechanism 1 and the sliding end are sequentially fixed on the T-shaped table The steel wire clamping module 2 and the connecting rope positioning module 3 are respectively fixed by the position fixing base 4 integrally provided with the above-mentioned transmission mechanism 1, the sliding end steel wire clamping module 2 and the connecting rope positioning module 3. The T-shaped platen and the position fixing base are respectively fixed. 4 Sliding and fixing are achieved by bolts and T-grooves.

In this embodiment, the three-jaw chuck 9 on the slide plate is movably fixed to the slide plate through the guide shaft 13 and the guide sleeve 12. The three-jaw chuck 9 is connected to one end of the guide shaft 13, the connecting rope 14 is connected to the other end, and the guide sleeve 12 penetrates the slide plate. Fixed, between the guide shaft 13 and the guide sleeve 12 are provided with a card slot and a card pin, through the card groove, the card pin and the tension of the weight 18 to realize the guide shaft 13 when the metal wire is broken. Relatively rotate, and then pass the mechanical contact-type induction switch 11 provided on the guide sleeve 12, and the induction sheet 10 set on the guide shaft 13 that is adapted to the position of the induction switch. When the metal wire is disconnected, the induction sheet 10 contacts the induction switch 11. Send the switch signal to the controller to judge the wire breakage in time, and start counting the number of revolutions of the motor when the wire breakage occurs to accurately determine the number of rotations of the metal wire. In this embodiment, the guide shaft 13 can also be directly configured as a guide shaft with a non-circular cross-section to be axially movably adapted to the guide sleeve 12 to achieve axial movement without rotation, and no card grooves and card pins are provided.

In this embodiment, the sliding and adjustable transmission mechanism 1 , the sliding end wire clamping module 2 and the connecting rope positioning module 3 can be adjusted by sliding to accommodate the installation of metal wires of different lengths and the distance adjustment between the sensing piece 10 and the sensing switch 11 .

In this embodiment, the PC upper computer is connected and communicated with the controller, the controller is a PLC, and the controller has a touch screen to realize on-site operation and monitoring. The three-jaw chuck 9 adopts a 360-degree disc-type three-jaw chuck.

This embodiment mainly adopts a horizontal structure frame, directly uses the servo motor to control the deceleration motor 5, realizes the speed (angle) control, and then drives the driving gear 7 through the deceleration motor 5, and then drives the driven gear 8 to rotate, so as to realize the metal wire sample torsion test. The equipment is easy to operate and efficient, can automatically and accurately control the test process, and automatically measure the angle test parameters.

Claims (8)

1. The utility model provides a multiaxis linkage metal wire twists reverse test device, is including setting up T type platen, controller, gear motor, servo motor and drive mechanism in the frame, and the controller passes through servo motor control gear motor and rotates, and gear motor drives drive mechanism, its characterized in that: the device also comprises a position fixing seat, a constant tension tensioning device, a sliding end steel wire clamping module and a connecting rope positioning module, wherein the transmission mechanism comprises a driving gear and a plurality of driven gears, the driving gear is simultaneously meshed with the driven gears, and each driven gear is fixedly provided with a three-jaw chuck; the sliding end steel wire clamping module comprises a sliding plate and a plurality of three-jaw chucks movably fixed on the sliding plate, each three-jaw chuck axially concentrically corresponds to the three-jaw chuck on the driven gear, and the sliding plate is vertical and is in sliding fit with the T-shaped platen; the connecting rope positioning module comprises a positioning plate, the positioning plate is provided with a plurality of positioning through holes which correspond to the three-jaw chuck on the sliding plate in the same axial center, and the positioning plate is vertical and is in sliding fit with the T-shaped bedplate; the constant-tension tensioning device comprises a plurality of connecting ropes, a directional wheel and weights, the connecting ropes respectively penetrate through positioning through holes of the positioning plate, one end of each connecting rope is connected with the three-jaw chuck on the sliding plate, the other end of each connecting rope is connected with the weights through the directional wheel, and a transmission mechanism, a sliding end steel wire clamping module and a connecting rope positioning module are sequentially fixed on the T-shaped platen through position fixing seats respectively.

2. The multi-axis linkage metal wire torsion test apparatus according to claim 1, characterized in that: three-jaw (holding) chuck on the slide passes through guiding axle and uide bushing and slide activity fixed, and the three-jaw (holding) chuck is connected to the one end of guiding axle, and the rope is connected to the other end connection, and the uide bushing pierces through fixedly with the slide, is provided with draw-in groove and bayonet lock between guiding axle and the uide bushing, is provided with inductive switch on the uide bushing, be provided with on the guiding axle with the response piece of inductive switch position adaptation, send out signal to controller behind the response piece contact inductive switch.

3. The multi-axis linkage metal wire torsion test apparatus according to claim 1, characterized in that: connect rope orientation module still including in the same direction as the rope pole, be equipped with in the same direction as the rope pole with locating hole number adaptation equidistance through-hole, the through-hole position corresponds with directional wheel position, connects the rope and passes the through-hole.

4. The multi-axis linkage metal wire torsion test apparatus according to claim 3, characterized in that: connect rope orientation module still includes the guide, and the guide includes protruding type pipe of copper and opening bayonet lock, and protruding type pipe path end outer wall is equipped with annular clamping groove, and the inner wall both ends set up the horn mouth, and protruding type pipe is the activity respectively and penetrates locating hole and through-hole, blocks annular clamping groove activity through the opening bayonet lock and fixes protruding type pipe.

5. The multi-axis linkage metal wire torsion test apparatus according to claim 1 or 2, characterized in that: the testing device further comprises a PC upper computer, the PC upper computer is communicated with a controller, the controller is a PLC or a single chip microcomputer controller, and the controller is provided with a liquid crystal panel.

6. The multi-axis linkage metal wire torsion test apparatus according to claim 1 or 2, characterized in that: the three-jaw chuck adopts a 360-degree disc type three-jaw chuck.

7. The multi-axis linkage metal wire torsion test apparatus according to claim 1 or 2, characterized in that: the T-shaped bedplate is provided with a plurality of T-shaped grooves, and the grooves are in sliding fit with the transmission mechanism, the positioning plate and the sliding plate.

8. The multi-axis linkage metal wire torsion test apparatus according to claim 8, characterized in that: the transmission mechanism, the sliding end steel wire clamping module and the connecting rope positioning module slide and are fixed with the T-shaped bedplate through position fixing seats which are integrally arranged.

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