CN210834453U

CN210834453U - Rubber plastic elongation tester

Info

Publication number: CN210834453U
Application number: CN201921455963.5U
Authority: CN
Inventors: 刘敏锐
Original assignee: Fujian Huiyang Cable Technology Co ltd
Current assignee: Fujian Huiyang Cable Technology Co ltd
Priority date: 2019-09-04
Filing date: 2019-09-04
Publication date: 2020-06-23
Anticipated expiration: 2029-09-04

Abstract

The utility model relates to an elastic plastic elongation tester, which comprises a first upright post, wherein two clamping mechanisms which are arranged one above the other and are respectively used for clamping the upper end and the lower end of a tested material are arranged on the first upright post, a servo motor used for driving the lower clamping mechanism to move up and down is arranged at the top of the first upright post, and the upper clamping mechanism is arranged at the lower end of a force cell sensor used for controlling the servo motor; the second upright column is arranged beside the first upright column, and a pair of follow-up clamping pieces which are arranged above and below the second upright column and used for clamping two ends of a measured section of a measured material and synchronously move when the measured material extends are arranged on the second upright column. The utility model discloses rubber and plastic elongation test machine novel structure, reasonable in design, convenient to use, easy operation, the extension length after the material fracture is surveyed in the acquisition that can be more accurate for the accuracy of test result is higher.

Description

Rubber plastic elongation tester

Technical Field

The utility model relates to an elastic elongation testing machine.

Background

The wire and cable manufacturing industry needs to test the properties of the used insulating layer material, including the elongation of the material; at present, the elongation test equipment for the materials has the defects of simple structure and single function; because the material can be greatly retracted after being broken, the length cannot be measured after being broken, and a worker needs to measure the elongated length in real time when the material is elongated and record the length at the moment before being broken; such a detection method is not only troublesome to operate, but also has low accuracy of test results.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a result is novel, convenient to use, the high rubber and plastic elongation testing machine of accuracy.

The utility model discloses a following scheme realizes: an elastic-plastic elongation testing machine comprises a first upright post, wherein two clamping mechanisms which are arranged one above the other and used for clamping the upper end and the lower end of a tested material respectively are arranged on the first upright post, a servo motor used for driving the lower clamping mechanism to move up and down is arranged at the top of the first upright post, and the upper clamping mechanism is arranged at the lower end of a force transducer used for controlling the servo motor; the second upright column is arranged beside the first upright column, and a pair of follow-up clamping pieces which are arranged above and below the second upright column and used for clamping two ends of a measured section of a measured material and synchronously move when the measured material extends are arranged on the second upright column.

Furthermore, a vertical guide rod is arranged beside the second upright post, the following clamping piece comprises a following plate which is horizontally arranged, one end of the following plate is sleeved on the vertical guide rod and can slide up and down relative to the vertical guide rod, and the other end of the following plate is provided with a clamping mechanism for clamping the material to be tested; the follow-up plate is connected with one end of a pull rope, and the other end of the pull rope is connected with a balancing weight in the second upright post after bypassing the guide wheel at the upper end of the second upright post.

Further, fixture on the pallet is including being fixed in the fixed holding piece of pallet tip and with fixed holding piece complex activity holding piece, activity holding piece is installed on the movable block that removes about can following the pallet relatively, vertical guide arm one end is kept away from to the pallet is provided with convex lug backward, wear to be equipped with a pair of guide shaft that sets up and parallel along left right direction on the lug, the guide shaft can follow the pallet horizontal slip relatively, the movable block is connected in the one end of two guide shafts, and the two guide shaft other ends are connected with the ejector pad that is used for promoting the movable block to keep away from the pallet, be connected with the spring that the pulling movable block is close to the pallet between ejector pad and the lug.

Furthermore, a vertical screw rod is installed in the first upright column, the upper end of the vertical screw rod is coaxially connected with a servo motor, the lower clamping mechanism is installed on a sliding seat capable of sliding up and down relative to the first upright column, and a threaded hole matched with the vertical screw rod is formed in the sliding seat; the force measuring sensor is an S-shaped tension sensor and is electrically connected with a signal input end of a controller, and the servo motor is electrically connected with a signal output end of the controller.

Furthermore, the clamping mechanism comprises a U-shaped block, a clamping plate capable of reciprocating left and right is arranged in the U-shaped block, a locking screw penetrates through a side plate on one side of the U-shaped block, and the inward end of the locking screw is rotatably connected to the clamping plate.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses rubber and plastic elongation test machine novel structure, reasonable in design, convenient to use, easy operation, the extension length after the material fracture is surveyed in the acquisition that can be more accurate for the accuracy of test result is higher.

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to specific embodiments and related drawings.

Drawings

Fig. 1 is a front view of an embodiment of the present invention;

FIG. 2 is a schematic view of a partial structure of an embodiment of the present invention;

FIG. 3 is a top view of an upper follower clamp in an embodiment of the present invention;

fig. 4 is a schematic block diagram of an embodiment of the present invention;

the reference numbers in the figures illustrate: 100-a first upright post, 110-a servo motor, 120-a fixing plate, 130-a sliding seat, 200-a clamping mechanism, 210-a U-shaped block, 220-a clamping plate, 230-a locking screw, 300-a force transducer, 400-a second upright post, 410-a vertical guide rod, 420-a pull rope, 430-a guide wheel, 440-a balancing weight, 500-a following clamping piece, 510-a following plate, 511-a convex block, 520-a fixed clamping piece, 530-a movable clamping piece, 540-a movable block, 550-a guide shaft, 560-a pushing block and 570-a spring.

Detailed Description

As shown in fig. 1 to 4, an elastic elongation tester comprises a first upright 100, wherein two clamping mechanisms 200 which are arranged one above the other and are respectively used for clamping the upper end and the lower end of a tested material are arranged on the first upright 100, a servo motor 110 used for driving the lower clamping mechanism to move up and down is arranged at the top of the first upright, the upper clamping mechanism is arranged at the lower end of a force measuring sensor 300 used for controlling the servo motor, a fixing plate 120 is fixedly arranged at the upper part of the first upright 100, and the upper end of the force measuring sensor 300 is fixedly connected to the fixing plate 120; a second upright column 400 is arranged beside the first upright column 100, and a pair of upper and lower following clamping pieces 500 which are used for clamping two ends of a measured section of a measured material and synchronously move when the measured material extends are arranged on the second upright column 400; the two ends of a measured material are respectively clamped on the upper clamping mechanism and the lower clamping mechanism, the servo motor 110 drives the lower clamping mechanism to move downwards to enable the measured material to be elongated, the elongated measured material has certain tensile force and can be detected by the force sensor, when the measured material is stretched and broken, the measured material does not apply the tensile force to the force sensor any more, the force sensor senses the change of the tensile force, the force sensor controls the servo motor to stop working through the controller to enable the lower clamping mechanism to stop moving, and at the moment, the distance between the following clamping pieces is the length of the broken side section of the measured material; the elongation length of the tested material after the fracture can be accurately obtained, so that the accuracy of the test result is higher.

In this embodiment, a vertical guide rod 410 is disposed beside the second upright 400, the follower clamp 500 includes a follower plate 510 horizontally disposed, one end of the follower plate 510 is sleeved on the vertical guide rod 410 and can slide up and down relative to the vertical guide rod, a through hole in clearance fit with the vertical guide rod is formed in the vertical guide rod 410, and actually, the follower plate can also rotate on a horizontal plane relative to the vertical guide rod; the other end of the following plate 510 is provided with a clamping mechanism for clamping the material to be tested; the following plate 510 is connected with one end of a pull rope 420, the other end of the pull rope 420 is connected with a balancing weight 440 in the second upright column after bypassing a guide wheel 430 at the upper end of the second upright column 400, and the following clamping piece can be kept at the height of the following clamping piece when not being acted by external force under the action of the balancing weight, and is in a similar and suspended state, so that the following clamping piece can move synchronously along with the tested material more easily when the test is carried out.

In this embodiment, the clamping mechanism on the follower plate 510 includes a fixed clamping piece 520 fixed at an end of the follower plate and a movable clamping piece 530 matched with the fixed clamping piece, the movable clamping piece 530 is mounted on a movable block 540 capable of moving left and right relative to the follower plate, one end of the follower plate 510 away from the vertical guide rod is provided with a protrusion 511 protruding backwards, the protrusion is provided with a pair of guide shafts 550 arranged in left and right directions and parallel to each other in a penetrating manner, the guide shafts can slide left and right relative to the follower plate, the movable block 540 is connected to one end of each of the two guide shafts 550, the other end of each of the two guide shafts is connected with a push block 560 for pushing the movable block away from the follower plate, and a spring 570 for pulling the movable block to be close to the follower plate is connected between the push block and the protrusion; when the pushing block 560 is pushed, the movable block is far away from the following plate, the two clamping sheets loosen the material to be tested, and when the pushing block 560 is loosened, the two clamping sheets are matched and clamp the material to be tested under the action of the spring.

In this embodiment, a vertical screw rod is installed in the first column 100, the upper end of the vertical screw rod is coaxially connected with a servo motor, the lower clamping mechanism is installed on a sliding seat 130 capable of sliding up and down relative to the first column, a sliding groove for sliding and guiding the sliding seat is formed in the front surface of the first column, a threaded hole matched with the vertical screw rod is formed in the sliding seat, and the threaded hole is formed in the rear end of the sliding seat extending into the first column; the force measuring sensor is an S-shaped tension sensor and is electrically connected with a signal input end of a controller, and the servo motor is electrically connected with a signal output end of the controller; the model of the load cell can be WTP 301-S; the controller can be FX1N-40MR-001, and the rotating speed of the servo motor is determined according to the moving speed of the lower clamping mechanism when the test is carried out, and the moving speed of the lower clamping mechanism is controlled to be 50-80 mm/min generally.

In this embodiment, the clamping mechanism 200 includes a U-shaped block 210, a clamping plate 220 capable of reciprocating left and right is disposed in the U-shaped block 210, a locking screw 230 is disposed on a side plate of one side of the U-shaped block, and the inward end of the locking screw is rotatably connected to the clamping plate; when the locking screw is screwed down, the clamping plate is clamped, and when the locking screw is unscrewed, the clamping plate is loosened.

The utility model discloses rubber and plastic elongation testing machine working process: (1) cutting a tested material for testing, making two marks at the middle section of the tested material, and measuring the distance between the two marks; (2) then clamping the tested material on a testing machine, wherein two ends of the tested material are respectively clamped on an upper clamping mechanism and a lower clamping mechanism; clamping the two following clamping pieces on two mark points of a material to be detected; (3) starting the testing machine, driving the lower clamping mechanism to move downwards by the servo motor, and controlling the moving speed to be 50-80 mm/min; (4) when the tested material is pulled to be broken, the servo motor stops working, and the distance between the two following clamping piece clamps is measured, so that the length of the tested section of the tested material which is elongated after being broken can be obtained.

Any technical solution disclosed in the present invention is, unless otherwise stated, disclosed a numerical range if it is disclosed, and the disclosed numerical range is a preferred numerical range, and any person skilled in the art should understand that: the preferred ranges are merely those values which are obvious or representative of the technical effect which can be achieved. Because numerical value is more, can't be exhaustive, so the utility model discloses just disclose some numerical values with the illustration the technical scheme of the utility model to, the numerical value that the aforesaid was enumerated should not constitute right the utility model discloses create the restriction of protection scope.

The utility model discloses if disclose or related to mutual fixed connection's spare part or structure, then, except that other the note, fixed connection can understand: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).

In addition, the terms used in any aspect of the present disclosure as described above to indicate positional relationships or shapes include similar, analogous, or approximate states or shapes unless otherwise stated.

The utility model provides an arbitrary part both can be assembled by a plurality of solitary component parts and form, also can be the solitary part that the integrated into one piece technology was made.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.

Claims

1. An elastic elongation tester, which is characterized in that: the device comprises a first upright post, wherein an upper clamping mechanism and a lower clamping mechanism which are arranged on the first upright post and are respectively used for clamping the upper end and the lower end of a material to be tested are arranged on the first upright post, a servo motor used for driving the lower clamping mechanism to move up and down is arranged at the top of the first upright post, and the upper clamping mechanism is arranged at the lower end of a force transducer used for controlling the servo motor; the second upright column is arranged beside the first upright column, and a pair of follow-up clamping pieces which are arranged above and below the second upright column and used for clamping two ends of a measured section of a measured material and synchronously move when the measured material extends are arranged on the second upright column.

2. The rubber and plastic elongation tester as claimed in claim 1, wherein: a vertical guide rod is arranged beside the second upright post, the following clamping piece comprises a following plate which is horizontally arranged, one end of the following plate is sleeved on the vertical guide rod and can slide up and down relative to the vertical guide rod, and the other end of the following plate is provided with a clamping mechanism for clamping a material to be tested; the follow-up plate is connected with one end of a pull rope, and the other end of the pull rope is connected with a balancing weight in the second upright post after bypassing the guide wheel at the upper end of the second upright post.

3. The rubber and plastic elongation tester as claimed in claim 2, wherein: fixture on the pallet is including being fixed in the fixed holding piece of pallet tip and with fixed holding piece complex activity holding piece, activity holding piece is installed on the movable block that removes about can following the pallet relatively, vertical guide arm one end is kept away from to the pallet and is provided with convex lug backward, wear to be equipped with a pair of direction setting and parallel's guide shaft about along on the lug, the guide shaft can follow the pallet horizontal slip relatively, the movable block is connected in the one end of two guide shafts, and the two guide shaft other ends are connected with the kicking block that is used for promoting the movable block to keep away from the pallet, be connected with the spring that the pulling movable block is close to the pallet between kicking block and the lug.

4. The rubber and plastic elongation tester as claimed in claim 1, wherein: a vertical screw rod is arranged in the first upright post, the upper end of the vertical screw rod is coaxially connected with a servo motor, a lower clamping mechanism is arranged on a sliding seat which can slide up and down relative to the first upright post, and a threaded hole matched with the vertical screw rod is formed in the sliding seat; the force measuring sensor is an S-shaped tension sensor and is electrically connected with a signal input end of a controller, and the servo motor is electrically connected with a signal output end of the controller.

5. The rubber and plastic elongation tester as claimed in claim 4, wherein: the clamping mechanism comprises a U-shaped block, a clamping plate capable of reciprocating left and right is arranged in the U-shaped block, a locking screw penetrates through a side plate on one side of the U-shaped block, and the inward end of the locking screw is rotatably connected to the clamping plate.