Guide wire tension testing machine

Abstract

The utility model relates to a guide wire tension tester. The technical problems of an existing tension testing machine are solved. The guide wire tension testing machine comprises a testing base, wherein the upper end of the testing base is provided with a sliding assembly arranged along the length direction of the testing base; the clamping assembly comprises a first clamping seat and a second clamping seat which are connected to the sliding assembly in a spaced mode, the testing base is connected with the first clamping seat through a spring, a tension sensor is arranged on the spring, the second clamping seat is connected with a displacement driver, and clamping structures are arranged on the first clamping seat and the second clamping seat; and the bearing guide assembly comprises two rotating rods connected to the clamping structures correspondingly and guide rollers arranged on the rotating rods, and concave guide grooves are formed in the guide rollers. According to the guide wire tension testing machine, the movement range of the guide wire is limited in the presetting process, the winding problem of the overlong guide wire is avoided, the same length allowance of the guide wire before the guide wire is stretched is preset, and the testing accuracy is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of tension testing machine relates to a guide wire tension testing machine. BACKGROUND

[0002] For example, Chinese patent document discloses a kind of guide wire tension testing device [202120328837.4], the device includes rack, first clamping mechanism for clamping guide wire, second clamping mechanism for clamping guide wire, adjustable to the weighting mechanism of the tension of first clamping mechanism, connecting line for connecting weighting mechanism and first clamping mechanism, guiding mechanism for guiding connecting line;First clamping mechanism, second clamping mechanism and guiding mechanism are arranged on rack in radial direction, first clamping mechanism is movably arranged on rack to make first clamping mechanism move on rack in radial direction, connecting line one end is connected on first clamping mechanism, connecting line other end is connected on weighting mechanism after passing through wire guide mechanism to make the force of weighting mechanism be converted into the tension of first clamping mechanism.

[0003] The defect of the above technical scheme is that the guide wire length is longer, and after two clamping plate assemblies clamp guide wire end respectively, guide wire middle section is in slack state, state is unstable and easy to appear winding problem, and part guide wire performance test needs guide wire to enter the test data before being taut (for example, guide wire enters the time of taut state faster), cannot guarantee that preset same guide wire length margin before being taut. UTILITY MODEL CONTENTS

[0004] The utility model aims at the above-mentioned problems existing in prior art, provide a kind of guide wire tension testing machine.

[0005] The utility model can be realized by the following technical scheme:

[0006] The guide wire tension testing machine includes:

[0007] Test base, upper end is equipped with sliding assembly along the length direction of test base;

[0008] Clamping assembly, including first clamping seat and second clamping seat spaced apart and connected on sliding assembly, the test base is connected by spring between first clamping seat, tension sensor is equipped on the spring, displacement driver is connected to the second clamping seat, clamping structure is equipped on the first clamping seat and second clamping seat;

[0009] Supporting guide assembly, including two rotating rods respectively connected on the clamping structure, guide roller is arranged on the rotating rod, recessed guide groove is equipped on the guide roller, and guide wire two ends pass through guide roller respectively and are clamped on clamping structure respectively.

[0010] Further, the clamping structure comprises two vertically spaced clamping plates, a V-shaped clamping groove arranged between the two clamping plates, and a clamping driver for driving the two clamping plates to clamp.

[0011] Further, the rotating rod is hinged to the lower end clamping plate, and the height of the guide groove is higher than that of the V-shaped clamping groove when the rotating rod is rotated to between the two clamping seats.

[0012] Further, the rotating rod is hinged to the lower end clamping plate, and the height of the guide groove is higher than that of the V-shaped clamping groove when the rotating rod is rotated to between the two clamping seats.

[0013] Further, the rotating rod is hinged to the lower end clamping plate, and the height of the guide groove is higher than that of the V-shaped clamping groove when the rotating rod is rotated to between the two clamping seats.

[0014] Further, the test base comprises a base and mounting blocks arranged at two ends of the base.

[0015] Further, the test base comprises a base and mounting blocks arranged at two ends of the base.

[0016] Further, the test base comprises a base and mounting blocks arranged at two ends of the base.

[0017] Compared with the prior art, the guide wire tension testing machine limits the activity range of the guide wire during presetting, avoids the winding problem of the guide wire that is too long, and can preset the same pre-straightening guide wire length allowance without deliberately clamping the positions of the two ends of the guide wire, thereby improving the testing accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A guide wire tension testing machine preset state schematic view is provided.

[0019] Figure 2 A guide wire tension testing machine preset state schematic view is provided. Figure 1 A guide wire tension testing machine preset state schematic view is provided.

[0020] Figure 3 A guide wire tension testing machine preset state schematic view is provided. Figure 1 A guide wire tension testing machine preset state schematic view is provided.

[0021] Figure 4 A guide wire tension testing machine preset state schematic view is provided. Figure 1 A guide wire tension testing machine preset state schematic view is provided.

[0022] In the figure, 10, test base; 11, base; 12, mounting block; 13, buffer damper; 20, sliding assembly; 21, guide rail; 22, sliding block; 30, clamping assembly; 31, first clamping seat; 32, second clamping seat; 33, spring; 34, tension sensor; 35, displacement driver; 36, clamping structure; 361, clamping plate; 362, V-shaped clamping groove; 363, clamping driver; 37, rotation limiting groove; 40, supporting guide assembly; 41, rotating rod; 42, guide roller; 43, guide groove; 44, limiting plate. DETAILED DESCRIPTION

[0023] Referring to Figures 1 to 4 It is a guide wire tension testing machine schematic diagram provided by the utility model. The guide wire tension testing machine includes: test base 10, clamping assembly 30 slidingly arranged on test base 10, supporting guide assembly 40 arranged on clamping assembly 30, conceivably, the guide wire tension testing machine also includes other functional components and specific structures, for example, electrical connection components, control components, mounting structures and the like, which are all known technologies for those skilled in the art, so they will not be described in detail here.

[0024] Test base 10 is an installation carrier, which can be installed flat on the ground or equipment platform, and test base 10 includes base 11 and mounting blocks 12 arranged at both ends of base 11, and base 11 and mounting blocks 12 provide multiple mounting points to reduce the overall center of gravity and improve motion and force stability.

[0025] A sliding assembly 20 is arranged along the length direction of test base 10 at the upper end, and sliding assembly 20 includes a guide rail 21 arranged on base 11, and two sliding blocks 22 are slidingly connected to guide rail 21, the distance between the two clamping points on clamping assembly 30 is adjusted by moving the two sliding blocks 22 on guide rail 21, and the straightening and stretching of the guide wire is realized by the linear guidance of guide rail 21.

[0026] Clamping assembly 30 includes first clamping seat 31 and second clamping seat 32 connected to sliding assembly 20 at intervals, and first clamping seat 31 and second clamping seat 32 are arranged on the two sliding blocks 22 respectively, and first clamping seat 31 and second clamping seat 32 can move independently.

[0027] The first clamping seat 31 is connected with the installation plate through a spring 33, and the position of the first clamping seat 31 is unchanged under the action of no external force. The elastic connection of the first clamping seat 31 during the stretching of the guide wire applies tension to the first clamping seat 31 and is self-adapting to the length of the guide wire. A tension sensor 34 is arranged on the spring 33. In the embodiment, the tension sensor 34 is arranged at the end of the spring 33, and is used for accurately obtaining the tension on the spring 33, that is, the force value of the stretched guide wire. The second clamping seat 32 is connected with a displacement driver 35. In the embodiment, the displacement driver 35 is a servo motor, and is connected with the second clamping seat 32 through a lead screw or a drag chain. The displacement driver 35 drives the second clamping seat 32 to move, adjusts the spacing with the first clamping seat 31, and finally achieves the purpose of stretching the guide wire.

[0028] A clamping structure 36 is arranged on each of the first clamping seat 31 and the second clamping seat 32. The clamping structure 36 includes two vertically spaced clamping plates 361. The clamping plates 361 are in the shape of rectangular blocks. The clamping plate 361 at the lower end is provided with an axially arranged V-shaped notch. The clamping plate 361 at the upper end is provided with a corresponding V-shaped protrusion. When clamped, a V-shaped clamping groove 362 is formed between the two clamping plates 361. A clamping driver 363 is arranged at the upper end of the first clamping seat 31 and the second clamping seat 32, and is used for driving the two clamping plates 361 to clamp. When the end of the guide wire is clamped through the clamping structure 36, the guide wire can stably fall to the lowest point of the V-shaped clamping groove 362, so as to ensure that the guide wire is discharged at the discharge point of the clamping structure 36, and the guide wire is kept in a straight and consistent state during tension testing of the first clamping seat 31 and the second clamping seat 32.

[0029] The support guide assembly 40 includes two rotating rods 41 connected to the clamping structure 36 respectively. The single-side rotating rod 41 has two, and is correspondingly hinged to the lower end clamping plate 361. The end of the rotating rod 41 away from the clamping structure 36 is provided with a guide roller 42. The two ends of the guide wire pass through the guide rollers 42 respectively and are clamped on the clamping structure 36. The guide roller 42 is used for contacting the guide wire and can self-rotate to prevent damage to the guide wire when contacting the guide wire. The rotating rod 41 is provided with a limiting plate 44 on both sides of the guide rod. The limiting plate 44 protrudes from both ends of the guide roller 42. The guide wire passes through the two limiting plates 44 and the upper end of the guide wire tube. The guide wire can be limited in the preset process to avoid the problem of winding of the guide wire that is too long. The guide groove 43 is arranged on the guide roller 42. When the guide wire is stretched to the preset state of tension, the guide groove 43 is used for positioning the position of the middle section of the guide wire.

[0030] In the preset state, the rotating rod 41 needs to be rotated to between the two clamping seats, at this time the height of the guide groove 43 is higher than the height of the V-shaped clamping groove 362, that is, the length of the wire guide middle section is greater than the straight line length between the two clamping structures 36. The clamping plate 361 is provided with a rotating limiting groove 37 for clamping the guide roller 42 with the rotating rod 41, after the preset is completed, the guide roller 42 is rotated and clamped into the rotating limiting groove 37 for positioning, and the wire guide middle section reenters the relaxed state. The added supporting guide assembly 40 can provide the same pre-test conditions for different wire clamping lengths without deliberately clamping the wire end position accurately, and can improve the test accuracy. It should be noted that a torsional spring can be provided on the rotating rod 41 to realize the stability of the rotating point of the rotating rod 41, and an elastic buckle is provided at the position of the rotating limiting groove 37, which realizes the fixation at the position of the rotating limiting groove 37 after the elastic clamping of the guide roller 42, which is a conventional setting in the art, and the specific structure will not be described here.

[0031] The test base 10 is also provided with a buffer damper 13 capable of abutting against the first clamping seat 31, which is used to offset the inertial force of the first clamping seat 31 to prevent the first clamping seat 31 from being damaged by collision after the wire is broken.

[0032] The specific embodiments described herein are merely illustrative of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, without deviating from the spirit of the present application or exceeding the scope defined by the appended claims.

Claims

1. A guidewire pull testing machine characterized by, The utility model relates to a test base (10) upper end is equipped with the sliding assembly (20) along the length direction of test base (10) arrangement, first clamping seat (31) and second clamping seat (32) are connected on the sliding assembly (20) and are spaced, the test base (10) is connected with first clamping seat (31) through spring (33), and the spring (33) is equipped with tension sensor (34) on, and the second clamping seat (32) is connected with displacement driver (35), and first clamping seat (31) and second clamping seat (32) are equipped with clamping structure (36) on, supporting guide assembly (40) includes two rotary rods (41) that are connected on clamping structure (36) respectively, guide roller (42) is arranged on rotary rod (41), and the recessed guide groove (43) is equipped with on guide roller (42), and the both ends of guide wire are respectively through guide roller (42) and are clamped on clamping structure (36) respectively. The clamping structure (36) includes two vertically spaced clamping plates (361), a V-shaped clamping groove (362) disposed between the two clamping plates (361), and a clamping driver (363) driving the two clamping plates (361) to clamp. The rotary rod (41) is hinged to the lower end clamping plate (361), and the height of the guide groove (43) is higher than the height of the V-shaped clamping groove (362) when the rotary rod (41) is rotated between the two clamping seats. The rotary rod (41) is located on both sides of the guide rod and is provided with a limiting plate (44), and the both sides of the limiting plate (44) protrude from both ends of the guide roller (42).

2. The guidewire pull testing machine of claim 1, wherein, The clamping plate (361) is provided with a rotation limiting groove (37) for the guide roller (42) to be clamped into the rotary rod (41).

3. The guidewire pull testing machine of claim 2, wherein, The test base (10) includes a base (11) and mounting blocks (12) disposed at both ends of the base (11).

4. The guidewire pull testing machine of claim 3, wherein, The sliding assembly (20) includes guide rails (21) disposed on the base (11), two spaced sliding blocks (22) slidingly connected to the guide rails (21), and the first clamping seat (31) and the second clamping seat (32) are disposed on the sliding blocks (22), respectively.

5. The guidewire pull testing machine of claim 3, wherein, The test base (10) is further provided with a buffer damper (13) capable of abutting against the first clamping seat (31).

6. The guidewire pull testing machine of claim 1, wherein, ​ 7. The guidewire pull testing machine of claim 6, wherein, ​ 8. The guidewire pull testing machine of claim 1, wherein, ​

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