CN207779834U - The tired strength tester of nine axis linkage - Google Patents

Abstract

The utility model provides a fatigue strength testing machine, in particular to a nine-axis linkage fatigue strength testing machine, comprising a linear module, a servo motor, a computer data processing module, a control panel, a force sensor, a left clamper, and a right clamper Holder, and friction rubber roller. There are three groups of linear modules, which are the left linear module, the middle linear module, and the right linear module. Driven by the three linear modules, the left and right grippers and friction rubber rollers can move along the One-way movement, universal movement and inching in X, Y, and Z directions. The fatigue strength testing machine provided by the utility model can adopt the nine-axis linkage method, and the three sets of linear modules on the left, middle and right can control the left and right clampers and friction rubber rollers to move arbitrarily in the three-dimensional space, thereby truly realizing the use of simulated textiles. The random friction in the process can imitate the arbitrary movement of clothes worn on the body and external friction objects.

Description

Nine-axis linkage fatigue strength testing machine

technical field

The invention relates to a fatigue strength testing machine, in particular to a nine-axis linkage fatigue strength testing machine.

Background technique

As an indispensable part of people's daily life, textiles will constantly rub, stretch, twist, and bend with the skin or the outside world during use. Under the interaction with other materials, such phenomena as pilling, exposure of spandex filaments, fiber breakage, bagging and arching will gradually appear, and this change seriously affects the comfort and aesthetics of fabrics or clothing. For example, stretch garments made of stretch fabrics will lose elasticity in the weft direction after repeated wearing and washing. And it cannot be restored, which seriously affects the aesthetics of consumers. At the same time, the elastic fabric loses its elasticity. In severe cases, the fabric will foam and arch, resulting in serious deformation of the ready-made garment, which cannot be worn and used. To sum up, it is very necessary for textiles to undergo strict performance testing before they are put into use, and the testing method should be able to simulate the state of textiles in actual application to the greatest extent.

Utility model content

In order to solve the above technical problems, the present invention provides a nine-axis linkage fatigue strength testing machine, which can most closely simulate the stretching and bending of textiles during wearing, or the process of friction with the human body and the outside world.

A nine-axis linkage fatigue strength testing machine includes a linear module, a servo motor, a computer data processing module, a control panel, a force sensor, left and right grippers, and friction rubber rollers.

There are three groups of linear modules, which are the left linear module, the middle linear module, and the right linear module. The three linear modules are composed of three sliding axes in X, Y, and Z directions, namely The left three axes are X1, Y1, Z1, the middle three axes are X2, Y2, Z2, and the right three axes are X3, Y3, Z3. The X direction is a horizontal left-right direction, the Y direction is a horizontal front-back direction, and the Z direction is a vertical up-down direction.

The left gripper is connected with the slider on the Z1 axis, and can move up and down along the Z1 axis through the slider; the Z1 axis is connected with the slider on the Y1 axis, and can move forward and backward along the Y1 axis through the slider; The shaft is connected with the slider on the X1 axis, and can move left and right along the X1 axis through the slider.

The friction rubber roller is detachably connected to the slider on the Y2 axis, and can move forward and backward along the Y2 axis through the slider; the Y2 axis is connected to the slider on the X2 axis, and can move left and right along the X2 axis through the slider; The X2 axis is connected with the slide block on the Z2 axis, and can move up and down along the Z2 through the slide block.

The right gripper is connected with the slider on the Z3 axis, and can move up and down along the Z3 axis through the slider; the Z3 axis is connected with the slider on the Y3 axis, and can move forward and backward along the Y3 axis through the slider; The shaft is connected with the slider on the X3 axis, and can move left and right along the X3 axis through the slider.

Driven by the left, middle and right linear modules, the left and right grippers and friction rubber rollers can move in one direction, universal movement or inching along the X, Y and Z directions, for example, along the X direction To move left and right, you can move in the horizontal plane along the X direction and Y direction at the same time, you can move in the three-dimensional space along the X direction, Y direction and Z direction at the same time, and you can also slowly adjust a certain axis or several axes separately to make the gripper Or the friction rubber roller is fixed on a certain suitable position.

Each sliding shaft is provided with a screw rod, and each screw rod is connected with a servo motor, and the servo motor drives the screw rod to perform circular motion forward and reverse, thereby driving the guide rail slider on the sliding shaft to perform linear reciprocating motion.

The force sensor is connected with the left or right gripper for measuring the tension between the two grippers, and at the same time connected with the computer data processing module, the computer data processing module includes an elongation detection module, that is, measuring The elongation rate of the object to be tested is monitored by the force sensor and the elongation detection module. This testing machine can move at a constant force or elongation to control variables, and the detection method is more rigorous.

The material of the friction rubber roller can be replaced according to different objects to be tested, such as rubber, stainless steel, fabric, etc.; it can also be set according to the actual friction with the textile during the wearing process, such as making the friction rubber roller into a bicycle Seat shape and material; it is also possible to increase or decrease the friction coefficient of the rubber roller by setting different surface shapes of the rubber roller. The diameter, length and other specifications of the friction rubber roller can also be adjusted according to the object to be tested or the required test effect.

The clamping method of the left and right holders is manual bolt tightening or pneumatic clamping.

When carrying out the fatigue strength test, the two sides of the object to be tested are respectively clamped on the left and right holders, and the distance between the left and right holders is adjusted by jogging on the control panel, so as to apply a certain pulling force to the object to be tested, and set the left, middle and right The movement mode of the linear module and the number of repetitions of the action make the object under test and the friction rubber roller move simultaneously according to the set action, which simulates various stretching and friction modes of the object under test.

Through above technical scheme, beneficial effect of the present invention is:

1. The fatigue strength testing machine provided by the present invention adopts a nine-axis linkage method, and the three sets of linear modules on the left, middle and right can control the left and right grippers and friction rubber rollers to move arbitrarily in three-dimensional space, thereby truly realizing the use of simulated textiles. The random friction and stretching in the process can imitate the arbitrary movement of the clothes worn on the body and the external friction objects at the same time.

2. The friction rubber roller can be replaced according to different objects to be tested, and can also be set according to the actual friction with the textile during the wearing process. Set different surface shapes of rubber rollers to increase or decrease the friction coefficient of rubber rollers, making the simulation more realistic.

3. Driven by the left, middle and right linear modules, the left and right grippers and friction rubber rollers can perform unidirectional reciprocating motion, universal motion or inching along the X, Y, and Z directions, and can be set arbitrarily One or several of the 9 axes move, and the other axes are stationary or do not participate in the movement. The equipment is highly adjustable and can meet the simulation of most movement modes.

4. The device is equipped with a force sensor and an elongation detection module, so that parameters can be set through the control panel to achieve constant force or constant elongation movement, that is, it can realize control variables, rigorous detection methods, and can be further used to study a certain variable Influence on the fatigue resistance of textiles.

Description of drawings

Fig. 1 is the three-dimensional schematic diagram of the present invention

Fig. 2 is the front view of the present invention

In the figure 1, left linear module; 101, X1 axis; 102, Y1 axis; 103, Z1 axis; 2, middle linear module; 21, X2 axis; 22, Y2 axis; 23, Z2 axis; 3, right Side linear module; 31, X3 axis; 32, Y3 axis; 33, Z3 axis; 41, X1 axis servo motor; 42, Y1 axis servo motor; 43, Z1 axis servo motor; 51, X2 axis servo motor; 52, Y2 axis servo motor; 53, Z2 axis servo motor; 61, X3 axis servo motor; 62, Y3 axis servo motor; 63, Z3 axis servo motor; 7, control panel; 81, left gripper; 82, right Holder; 9, force sensor; 10, friction rubber roller.

Detailed ways

The equipment of the present invention will be further described below in conjunction with the accompanying drawings.

The invention provides a nine-axis linkage fatigue strength testing machine, which includes a left linear module 1 , a middle linear module 2 and a right linear module 3 . The three groups of linear modules on the left, middle and right are respectively composed of sliding axes in three directions of X, Y and Z. The three sliding axes of the left linear module are X1-axis 101, Y1-axis 102, and Z1-axis 103 respectively; the three-directional sliding axes of the middle linear module are X2-axis 21, Y2-axis 22, Z2-axis 23, and right The sliding axes in three directions of the side linear module are X3 axis 31 , Y3 axis 32 , and Z3 axis 33 . Each sliding shaft is provided with a screw rod, and each screw rod is correspondingly connected to a servo motor, X1 axis servo motor 41, Y1 axis servo motor 42, Z1 axis servo motor 43, X2 axis servo motor 51, Y2 axis servo motor 52 , Y3-axis servo motor 53, X3-axis servo motor 61, Y3-axis servo motor 62, and Z3-axis servo motor 63. The servo motor drives its lead screw in forward and reverse directions to make a circular motion, thereby driving the guide rail slider on the sliding shaft to do Linear reciprocating motion. The nine-axis linkage fatigue strength testing machine also includes a computer data processing module, a control panel 7 , a left gripper 81 , a right gripper 82 , a force sensor 9 , and a friction rubber roller 10 .

The left gripper 81 is connected with the slider on the Z1 axis 103, and can move up and down along the Z1 axis through the slider; the Z1 axis is connected with the slider on the Y1 axis 102, and can move back and forth along the Y1 axis through the slider; The Y1 axis is connected with the slider on the X1 axis 101 and can move left and right along the X1 axis through the slider.

The friction rubber roller 10 is detachably connected to the slider on the Y2 axis 22, and can move forward and backward along the Y2 axis through the slider; the Y2 axis is connected to the slider on the X2 axis 21, and can move left and right along the X2 axis through the slider ; The X2 axis is connected with the slide block on the Z2 axis 23, and can move up and down along the Z2 through the slide block.

The right holder 82 is connected with the slider on the Z3 axis 33, and can move up and down along the Z3 axis through the slider; the Z3 axis is connected with the slider on the Y3 axis 32, and can move back and forth along the Y3 axis through the slider; The Y3 axis is connected with the slider on the X3 axis 31 and can move left and right along the X3 axis through the slider.

The force sensor 9 is connected to the left or right gripper for measuring the tension between the two grippers, and at the same time connected to the computer data processing module, the computer data processing module also includes an elongation detection module, That is to measure the elongation of the object to be tested. Through the monitoring of the force sensor and the elongation detection module, the testing machine can move at a constant force or elongation to control variables and make the detection method more rigorous.

The material of the friction rubber roller 10 can be replaced according to different objects to be tested, such as rubber, stainless steel, fabric, etc.; it can also be set according to the actual friction with the textile during wearing, such as making the friction rubber roller The shape and material of the bicycle seat; it is also possible to increase or decrease the friction coefficient of the rubber roller by setting different surface shapes of the rubber roller. The diameter, length and other specifications of the friction rubber roller can also be adjusted according to the object to be tested or the required test effect. The clamping method of the left and right holders is manual bolt tightening or pneumatic clamping.

When carrying out the fatigue strength test, the two sides of the object to be tested are respectively clamped on the left and right holders, and the distance between the left and right holders is adjusted through the control panel 7 to apply a certain pulling force to the object to be tested. , the movement mode of the right linear module, and the number of repetitions of the action, so that the object under test and the friction rubber roller move at the same time according to the set action, which simulates various stretching and friction modes of the object under test.

The test movement modes of the nine-axis linkage fatigue strength testing machine provided by the present invention include unidirectional movement, universal movement and inching.

1. One-way movement

The one-way movement is that the two sliders of the axes corresponding to each other in the left and right linear modules participate in the movement, that is, the X1 and X3 sliders participate in the movement, or the Y1 and Y3 sliders participate in the movement, or the Z1 and Z3 sliders participate in the movement, The three-way slider of the middle linear module can optionally participate in the movement.

Taking the X axis as an example, the one-way movement refers to the movement of the two X-axis sliders of the left and right linear modules, namely the X1 axis and the X3 axis, and the three-way slider of the middle linear module can optionally participate in the movement.

Driven by the left, middle, and right linear modules, the horizontal movement of the left and right grippers can be, for example: (1) the grippers on both sides reciprocate and stretch in different directions, (2) the grippers on one side Stationary, the gripper on the other side reciprocates and stretches, (3) the middle rubber roller moves up and down, and the grippers on both sides reciprocate in different directions. The holder reciprocates in different directions.

2. Universal movement

The universal movement is that the sliders on the nine sliding axes on the left, middle and right move independently or simultaneously along the X, Y and Z axes, and the left and right linear modules drive the gripper to stretch and/or Twisting, the middle linear module drives the friction rubber roller to rub the object to be tested.

Driven by the left, middle, and right linear modules, the universal movement of the grippers on the left and right sides and the friction rubber roller in the middle can be, for example:

(1) The left and right grippers reciprocate forward and backward along the Y axis in different directions, and the middle friction rubber roller does not participate in the movement.

(2) The left and right grippers reciprocate up and down along the Z axis in different directions, and the middle friction rubber roller does not participate in the movement.

(3) The left gripper moves along Y1 and Z1 at the same time, the right gripper moves along Y3 and Z3 simultaneously, and Y1 and Y2 reverse stretching movement, Z1 and Z2 reverse stretching movement, and the middle friction rubber roller does not participate sports.

(4) The left gripper moves along X1, Y1, and Z1 simultaneously, and the right gripper moves along X3, Y3, and Z3 simultaneously, and X1 and X3 reverse stretching motion, Y1 and Y3 reverse stretching motion, Z1 and Y3 Z3 reverse stretching movement, the middle friction rubber roller does not participate in the movement.

(5) When the two grippers on the left and right move in the above four ways respectively, the middle linear module moves back and forth along the Y2 axis, playing the role of rubbing the object under test in the middle.

(6) When the two grippers on the left and right move in the above four ways respectively, the middle linear module moves along X2 and Y2 at the same time, playing the role of rubbing the object under test in the middle.

Three, jog

The inching is the fine-tuning of the position of the sliders on the nine sliding shafts. It is mostly used for the up-down adjustment of the friction rubber roller or the fine-tuning of the distance between the left and right grippers after the sample is clamped. The jogging function is low-speed movement. .

Driven by the left, middle, and right linear modules, the inching motion of the grippers on the left and right sides and the friction rubber roller in the middle can be, for example:

(1) The left and right grippers move simultaneously along the X direction, and move slowly in opposite directions or opposite directions to increase or decrease the lateral distance between the two grippers.

(2) The left and right grippers move simultaneously along the Y direction, and move slowly in opposite directions or opposite directions to increase or decrease the longitudinal distance between the two grippers.

(3) The middle friction rubber roller moves slowly up or down along the Y axis to lift up to a certain height, and can rub against the object to be measured clamped on the left and right holders.

The above specific implementation modes are made for a clearer introduction to the present invention, and are only part of the implementation modes of the present invention rather than limiting the protection scope of the present invention. Those skilled in the art made on the basis of the invention Any additions or changes that do not involve an inventive step fall within the protection scope of the present invention.

Claims (14)

1. A nine-axis linkage fatigue strength testing machine, characterized in that it includes a linear module, a servo motor, a computer data processing module, a control panel, a force sensor, a left gripper, a right gripper, and a friction rubber roller, There are three groups of linear modules, which are the left linear module, the middle linear module, and the right linear module. Each group of linear modules is composed of sliding axes in the X, Y, and Z directions, namely The side three axes X1, Y1, Z1, the middle three axes X2, Y2, Z2, the right three axes X3, Y3, Z3, the sliding shafts are equipped with sliders, and the linear module drives the left gripper, The right gripper and the friction rubber roller move. 2. A nine-axis linkage fatigue strength testing machine according to claim 1, characterized in that: the left and right grippers and the friction rubber roller perform unidirectional movement, universal movement or inching. 3. A nine-axis linkage fatigue strength testing machine according to claim 2, characterized in that: the one-way movement is that two sliders of the axes corresponding to each other in the left and right linear modules participate in the movement, that is, X1 and X3 The sliders participate in the movement, or the Y1 and Y3 sliders participate in the movement, or the Z1 and Z3 sliders participate in the movement, and the three-way sliders of the middle linear module can optionally participate in the movement. 4. A nine-axis linkage fatigue strength testing machine according to claim 2, characterized in that: the universal movement is that the sliders on the nine sliding axes on the left, middle and right are all along the X, Y, Z The axes move independently or simultaneously, the left and right linear modules drive the gripper to stretch and/or twist the object to be tested, and the middle linear module drives the friction rubber roller to rub the object to be tested. 5. A nine-axis linkage fatigue strength testing machine according to claim 2, characterized in that: the jogging is the fine adjustment of the position of the slider on the 9 sliding shafts, and it is used for friction rubber roller up, down or left and right Fine adjustment of the distance between the two grippers. 6. A nine-axis linkage fatigue strength testing machine according to claim 1, characterized in that: the left gripper is connected to the slider on the Z1 axis, and can move up and down along the Z1 axis through the slider; The Z1 axis is connected with the slider on the Y1 axis, and can move back and forth along the Y1 axis through the slider; the Y1 axis is connected with the slider on the X1 axis, and can move left and right along the X1 axis through the slider. 7. A nine-axis linkage fatigue strength testing machine according to claim 1, characterized in that: the friction rubber roller is connected to the slider on the Y2 axis, and can move back and forth along the Y2 axis through the slider; the Y2 axis It is connected with the slider on the X2 axis, and can move left and right along the X2 axis through the slider; the X2 axis is connected with the slider on the Z2 axis, and can move up and down along the Z2 through the slider. 8. A nine-axis linkage fatigue strength testing machine according to claim 1, characterized in that: the right gripper is connected to the slider on the Z3 axis, and can move up and down along the Z3 axis through the slider; The Z3 axis is connected with the slider on the Y3 axis, and can move back and forth along the Y3 axis through the slider; the Y3 axis is connected with the slider on the X3 axis, and can move left and right along the X3 axis through the slider. 9. A nine-axis linkage fatigue strength testing machine according to any one of claims 1-8, characterized in that: the force sensor is connected to the left or right gripper, and measures the distance between the two grippers. The tensile force is connected with the computer data processing module at the same time, and the computer data processing module also includes an elongation detection module for measuring the elongation of the object to be tested. 10. A nine-axis linkage fatigue strength testing machine according to any one of claims 1-8, characterized in that: the clamping methods of the left and right clamps are manual bolt tightening or pneumatic clamping . 11. A nine-axis linkage fatigue strength testing machine according to any one of claims 1-8, characterized in that the friction rubber roller is detachable and can be replaced according to different objects to be tested. 12. A nine-axis linkage fatigue strength testing machine according to any one of claims 1-8, characterized in that: the material of the friction rubber roller is rubber, stainless steel or fabric. 13. A nine-axis linkage fatigue strength testing machine according to any one of claims 1-8, characterized in that the friction rubber rollers are set according to the items that the textiles actually rub against during wearing. 14. A nine-axis linkage fatigue strength testing machine according to claim 13, wherein the friction rubber roller is in the shape and material of a bicycle seat.