Ship elastic part tensile test tool assembly

Abstract

The utility model relates to the technical field of detection tools, and discloses a tensile test tool assembly for ship elastic parts, hydraulic pull rods are arranged in the middles of plate frames of two groups of arm force frames in a pairwise symmetrical manner, and two groups of guide sliding tables fixedly connected with the hydraulic pull rods are symmetrically arranged on the outer sides of arm rods of arm force guide rods; and two sets of tool clamps are symmetrically mounted in the middles of the plate frames of the two sets of guide sliding tables. According to the utility model, an elastic piece to be tested is placed on the tool clamp, the four groups of positioning clamping arms are driven to be oppositely clamped at the periphery of the elastic piece in a cross-shaped oppositely-clamping manner by utilizing the cross-shaped oppositely-clamping drive of the tool clamp, the elastic piece is firmly oppositely clamped and fixed, and then a tensile test is performed on the elastic piece through the tensile combination of the hydraulic pull rod and the guide sliding table. The clamping device has stable butt-clamping, limiting and fixing performance, can ensure the tensile stability of the elastic part in a tensile test, avoids loosening and collapse, and can adapt to the tensile tests of elastic parts with different sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of detection tooling, in particular to a ship elastic piece tensile test tooling assembly. Background Art

[0002] Springs, tension springs and other elastic parts are used as buffer and tensile components on ships. When they are used in the production and assembly of ships, their tensile properties need to be tested and inspected to ensure that they have qualified performance. When testing and inspecting elastic parts, corresponding tooling components are usually used for inspection, as shown in the existing patent technology: After searching, the China Patent Network discloses a tooling component for spring tensile testing (public announcement number CN205138783U). When this type of device is used for spring tensile testing, a tooling is respectively mounted on the upper fixing frame and the lower fixing frame of the spring tensile testing machine, and the upper and lower ends of the spring are respectively mounted on the mounting bodies on the two toolings, and the two ends of the spring are fixed, so that the elastic coefficient of the spring can be tested, ensuring the normal progress of the production process.

[0003] However, there are still some shortcomings in the above-mentioned public patents and the spring test fixtures adopted in the existing market: the existing method of using a set connection method to set the spring on the spiral clamping part of the installation body for tensile testing has poor set stability and is very likely to slide and collapse when the spring is stretched, and the operation risk is high. To this end, the technicians in this field provide a ship elastic part tensile test fixture assembly to solve the problems raised in the above background technology. Utility Model Content

[0004] The main purpose of the utility model is to provide a ship elastic member tensile test fixture assembly, which can effectively solve the problem of poor test stability of the existing spring test fixture in the background technology.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a ship elastic member tensile test tooling assembly, comprising two groups of arm force frames and arm force guide rods symmetrically installed between the two groups of arm force frames, the middle part of the plate frame of the two groups of arm force frames is symmetrically provided with hydraulic pull rods, the outer side of the arm rod of the arm force guide rod is symmetrically provided with two groups of guide slides fixedly connected with the hydraulic pull rods, and the middle part of the plate frame of the two groups of guide slides is symmetrically installed with two groups of tooling fixtures;

[0006] The tooling fixture includes a tooling shell, the upper half of the tooling shell is symmetrically provided with four groups of track slots in a cross form, and each group of track slots is slidably connected to a guide rail slide inside the slide, a positioning clamp arm is provided at the upper end of the frame of the guide rail slide, and a curved gear seat is provided at the lower end of the frame of the guide rail slide, a spiral crank meshing with the curved gear seat is rotatably connected to the middle part of the tooling shell, and a driving shaft opposite to the spiral crank is rotatably connected to the lower half of the tooling shell.

[0007] As a further solution of the utility model: a positioning sleeve is arranged at the upper end of the frame of the guide rail slide, an assembly pin which is snapped with the positioning sleeve is arranged at the bottom of the clamping claw of the positioning clamping arm, and the positioning sleeve and the assembly pin are screwed and fixed by a positioning bolt.

[0008] As a further solution of the utility model: a transmission gear is arranged at the output end of the driving shaft, and a transmission gear disc meshing with the transmission gear is arranged at the bottom of the spiral crank.

[0009] As a further solution of the utility model: the track slide groove and the guide rail slide are both I-shaped structures.

[0010] As a further solution of the utility model: the clamping surface of the positioning clamping arm is provided with a spiral clamping groove.

[0011] As a further solution of the utility model: both ends of the plate frame of the guide slide are provided with guide sleeves which guide and slide with the arm force guide rod.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] When the utility model performs a tensile test on an elastic piece, the elastic piece to be tested is placed on a fixture, and the cross-clamping drive of the fixture is used to drive four groups of positioning clamp arms to clamp around the elastic piece in a cross-clamping manner, and the snap-fit ​​adaptation of the spiral clamping groove on the clamping surface is used to firmly clamp and fix the elastic piece, and then the tensile test is performed on the elastic piece in the tensile combination of the hydraulic pull rod and the guide slide. On the one hand, the utility model has a stable clamping limit fixing performance, which can ensure the tensile stability of the elastic piece in the tensile test and avoid loosening and collapse. On the other hand, it has a good clamping adaptation performance, which can adapt to the tensile test of elastic pieces of different sizes and is more flexible to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of a ship elastic member tensile test tooling assembly of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of a fixture in a ship elastic member tensile test fixture assembly of the utility model;

[0016] Figure 3 The utility model is a partial cross-sectional view of a fixture in a ship elastic member tensile test fixture assembly.

[0017] In the figure: 1. Arm force frame; 2. Arm force guide rod; 3. Guide slide; 4. Guide slide; 5. Fixture; 51. Fixture shell; 52. Drive shaft; 53. Track slide; 54. Guide slide; 55. Positioning clamp arm; 56. Transmission gear; 57. Transmission gear plate; 58. Screw crank; 59. Crank seat; 510. Positioning sleeve; 511. Assembly pin; 6. Spring; 7. Hydraulic pull rod. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] Please refer to Figure 1-3As shown, a ship elastic member tensile test tooling assembly includes two groups of arm frames 1 and arm guide rods 2 symmetrically installed between the two groups of arm frames 1, hydraulic pull rods 7 are symmetrically arranged in the middle of the plate frames of the two groups of arm frames 1, two groups of guide slides 3 fixedly connected to the hydraulic pull rods 7 are symmetrically arranged on the outer sides of the arms of the arm guide rods 2, and guide sleeves 4 guiding and sliding with the arm guide rods 2 are arranged at both ends of the plate frame of the guide slides 3. After the elastic member is fixed, the contraction end of the hydraulic pull rod 7 is controlled to contract, and the guide slide 3 is pulled to slide symmetrically along the arm guide rod 2, and then the spring 6 is pulled to be stretched symmetrically, and the tensile deformation amount is tested and detected.

[0022] Two sets of tooling fixtures 5 are symmetrically installed in the middle of the plate frame of the two sets of guide slides 3. The tooling fixture 5 includes a tooling shell 51. The upper half of the shell of the tooling shell 51 is symmetrically provided with four sets of track slots 53 in a cross form, and the inside of the slot of each set of track slots 53 is slidably connected with a guide rail slide 54. The upper end of the frame of the guide rail slide 54 is provided with a positioning clamp arm 55. The upper end of the frame of the guide rail slide 54 is provided with a positioning sleeve 510. The bottom of the clamping claw of the positioning clamp arm 55 is provided with an assembly pin 511 that is buckled with the positioning sleeve 510, and the positioning sleeve 510 is screwed and fixed to the assembly pin 511 by means of positioning bolts, and a spiral clamping groove is provided on the clamping surface of the positioning clamp arm 55. When the spring 6 is subjected to a tensile test using the tooling assembly, a matching positioning clamp arm 55 can be assembled in advance according to the model of the spring 6. During assembly, the assembly pin 511 is plugged into and matched with the positioning sleeve 510. With the matching positioning bolts tightened, the corresponding positioning clamp arm 55 is installed on the guide rail slide 54, and the spring 6 is cross-clamped and fixed by means of the snap-fit ​​of the spiral clamping groove on its clamping surface.

[0023] The lower end of the guide rail slide 54 is provided with a curved tooth seat 59, the middle of the tool shell 51 is rotatably connected with a spiral crank 58 meshing with the curved tooth seat 59, and the lower half of the tool shell 51 is rotatably connected with a drive shaft 52 opposite to the spiral crank 58, the output end of the drive shaft 52 is provided with a transmission gear 56, and the bottom of the spiral crank 58 is provided with a transmission toothed disc 57 meshing with the transmission gear 56. The track slot 53 and the guide rail slide 54 are both I-shaped structures. When the tool assembly is used to perform a tensile test on the spring 6, the spring to be tested is placed The spring 6 is placed between two adjacent sets of fixtures 5, and then a wrench tool is used to control the rotation of the drive shaft 52 to drive the transmission gear 56 to rotate. The meshing transmission of the transmission gear 56 and the transmission toothed disc 57 is used to push the spiral crank 58 to rotate. Then, during the rotation of the spiral crank 58, the spiral transmission with the curved tooth seat 59 is used to push the guide rail slide 54 to slide along the track groove 53, so that the positioning clamp arm 55 keeps sliding centripetally, and the spring 6 is cross-clamped and fixed, and it is firmly fixed on the fixture 5 for tensile testing.

[0024] The working principle of the utility model is as follows: when the ship spring 6 is subjected to a tensile test by using the tooling assembly, the model of the positioning clamp arm 55 is replaced in advance to match the spring 6, and then the spring 6 to be tested is placed between two sets of tooling clamps 5 adjacent to each other, and the drive shaft 52 is controlled to rotate by using a wrench tool to drive the transmission gear 56 to rotate, and the meshing transmission of the transmission gear 56 and the transmission toothed disc 57 is used to drive the spiral crank 58 to rotate, and then the spiral crank 58 is used to drive the guide rail slide 54 to slide along the direction of the track groove 53 during the rotation process by using the spiral transmission with the curved tooth seat 59. The spring 6 is firmly fixed on the fixture 5 for tensile testing. After the spring 6 is fixed, the retracted end of the hydraulic pull rod 7 is controlled to retract, and the guide slide 3 is pulled to slide symmetrically along the arm force guide rod 2, and then the spring 6 is pulled to stretch symmetrically, and its tensile deformation amount is tested and detected. After the test is completed, the spring is kept in the initial reset and can be removed from the fixture 5. It has safe and convenient operation performance and is more flexible in use.

[0025] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A ship elastic member tensile test fixture assembly, comprising two sets of arm force frames (1) and arm force guide rods (2) symmetrically installed between the two sets of arm force frames (1), characterized in that: The middle part of the plate frame of the two groups of arm force frames (1) is symmetrically provided with hydraulic pull rods (7), the outer side of the arm of the arm force guide rod (2) is symmetrically provided with two groups of guide slides (3) fixedly connected to the hydraulic pull rods (7), and the middle part of the plate frame of the two groups of guide slides (3) is symmetrically installed with two groups of tooling fixtures (5); The tooling fixture (5) comprises a tooling shell (51), the upper half of the shell of the tooling shell (51) is symmetrically provided with four groups of track slots (53) in a cross-shaped manner, and the inside of each group of track slots (53) is slidably connected to a guide rail slide (54), the upper end of the frame of the guide rail slide (54) is provided with a positioning clamp arm (55), and the lower end of the frame of the guide rail slide (54) is provided with a curved tooth seat (59), the middle part of the shell of the tooling shell (51) is rotatably connected to a spiral crank (58) meshing with the curved tooth seat (59), and the lower half of the shell of the tooling shell (51) is rotatably connected to a drive shaft (52) opposite to the spiral crank (58).

2. A ship elastic member tensile test fixture assembly according to claim 1, characterized in that: A positioning sleeve (510) is provided at the upper end of the frame of the guide rail slide (54), an assembly pin (511) that is engaged with the positioning sleeve (510) is provided at the bottom of the clamping claw of the positioning clamping arm (55), and the positioning sleeve (510) and the assembly pin (511) are screwed and fixed by a positioning bolt.

3. A ship elastic member tensile test fixture assembly according to claim 1, characterized in that: The output end of the drive shaft (52) is provided with a transmission gear (56), and the bottom of the spiral crank (58) is provided with a transmission gear disk (57) meshing with the transmission gear (56).

4. A ship elastic member tensile test fixture assembly according to claim 1, characterized in that: The rail slide groove (53) and the guide rail slide platform (54) are both I-shaped structures.

5. The ship elastic member tensile test fixture assembly according to claim 1, characterized in that: The clamping surface of the positioning clamping arm (55) is provided with a spiral clamping groove.

6. A ship elastic member tensile test fixture assembly according to claim 1, characterized in that: Both ends of the plate frame of the guide slide (3) are provided with guide sleeves (4) which guide and slide with the arm force guide rod (2).

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