CN219284857U

CN219284857U - Hydrogen embrittlement test tool of double-rotation torsion spring

Info

Publication number: CN219284857U
Application number: CN202223118422.8U
Authority: CN
Inventors: 谢欢; 朱林; 贾飞飞; 陈彬; 王光宇; 章英健; 李聪; 张毅; 武峰; 王敏辉
Original assignee: Jiangnan Industries Group Co Ltd
Current assignee: Jiangnan Industries Group Co Ltd
Priority date: 2022-11-23
Filing date: 2022-11-23
Publication date: 2023-06-30
Anticipated expiration: 2032-11-23

Abstract

The utility model discloses a hydrogen embrittlement test tool of a double-rotation torsion spring, which comprises a bottom plate, wherein first support plates are vertically arranged at the left end and the right end of the bottom plate, the upper ends of the two first support plates are bent by 45 degrees and are oppositely arranged, a stretching assembly is slidably arranged on the surface of the bent part of the upper end of the first support plate, the stretching assembly is used for driving spring feet at the two ends of the torsion spring to move, a stop block is arranged in the middle of the bottom plate, a torsion spring fixing assembly is arranged at the front end of the bottom plate, and the two screw rods and the guide parts with an included angle of 90 degrees are used for jointly compacting the lower end of the torsion spring.

Description

Hydrogen embrittlement test tool of double-rotation torsion spring

Technical Field

The utility model relates to the technical field of torsion spring detection, in particular to a hydrogen embrittlement test tool of a double-rotation torsion spring and a use method thereof.

Background

In the electroplating of the metal piece, part of hydrogen permeates into the base metal and the plating layer in an atomic hydrogen state, so that the pressure in the metal piece is increased, the plasticity is reduced, and the metal piece is easy to brittle fracture. After the metal piece is dehydrogenated, a hydrogen embrittlement test is needed to be carried out on the metal piece to check the dehydrogenation effect, so the hydrogen embrittlement test after the dehydrogenation of the electroplated spring is particularly important, and the method is that the spring is stretched to more than twice the original free length, and the spring is not broken to be qualified. The stretching tool and the stretching method of the standard stretching spring or torsion spring are simpler, but the hydrogen embrittlement test of a certain double-rotation-direction special-shaped torsion spring is a difficult point in process inspection, and the stretching method is more difficult.

Disclosure of Invention

The utility model provides a hydrogen embrittlement test tool of a double-rotation torsion spring and a use method thereof, and aims to solve the problem of a hydrogen embrittlement test stretching method of a special-shaped torsion spring in the prior art.

The technical scheme of the utility model is as follows: the utility model provides a hydrogen embrittlement test instrument of two revolve torsional springs, includes the bottom plate, both ends are vertical about the bottom plate are provided with first bearing plate, two first bearing plate upper end is bent 45 and is set up relatively, first bearing plate upper end department surface sliding that bends is provided with tensile subassembly, tensile subassembly is used for driving torsion spring both ends spring foot and removes, be provided with the dog in the middle of the bottom plate, the bottom plate front end is provided with torsional spring fixed subassembly, and the two compresses tightly the torsional spring lower extreme jointly.

As a further improvement of the above technical scheme:

preferably, the lower end of the bottom plate is provided with a clamping block.

Preferably, the stretching assembly comprises a screw rod and a clamping assembly, the screw rod penetrates through the surface of the bending part at the upper end of the first supporting plate in a threaded connection mode, the clamping assembly is arranged at the lower end of the screw rod, and the clamping assembly is used for clamping spring legs at two ends of the torsion spring.

Preferably, a first handle is arranged at the upper end of the screw rod.

Preferably, the clamping assembly comprises a sliding block, a compression block and a fastening screw, wherein the sliding block is arranged at the lower end of the screw rod, and the compression block is movably arranged on the side face of the sliding block through the compression screw.

Preferably, 2 guide pins are arranged on any sliding block, the 2 guide pins are symmetrical to the screw rod, and the other end of the guide pins is connected to the end face of the first supporting plate in a penetrating and sliding manner.

Preferably, the torsional spring fixing component comprises a second supporting block, a compression screw and a pressing block, wherein the second supporting block is arranged at the front end of the bottom plate, the compression screw is connected to the vertical surface of the second supporting block in a penetrating mode, and the pressing block is arranged at one end, close to the stop block, of the compression screw.

Preferably, the other end of the compression screw is provided with a second handle.

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

compared with the prior art, the utility model adopts the two screws with the included angle of 90 degrees and the guide part, the spring leg of the torsion spring is biaxially stretched, the force is decomposed to stretch the spring coil part of the torsion spring to more than twice the original free length, whether the torsion spring is broken or not is used for checking the dehydrogenation effect of the torsion spring, the whole hydrogen embrittlement test method is simple, the hydrogen embrittlement test tool is combined with the special-shaped design of the torsion spring, the structure is light, the clamping and the disassembly are convenient and rapid, and the operation of workers is convenient.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic overall perspective view of the present utility model;

FIG. 2 is a schematic diagram of the front view structure in the detection process of the present utility model;

FIG. 3 is a schematic perspective view of a stopper according to the present utility model;

FIG. 4 is a schematic perspective view of a slider of the present utility model;

fig. 5 is a perspective view of the torsion spring of the present utility model.

Reference numerals: 1. a bottom plate; 2. a first support plate; 3. clamping blocks; 4. a screw; 5. a first handle; 6. a slide block; 7. a compaction block; 8. a fastening screw; 9. a guide pin; 10. a second support block; 11. a compression screw; 12. briquetting; 13. a second handle; 14. a torsion spring; 15. and a stop block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that, in terms of "front", "rear", "left", "right", "upper", "lower", etc., the directions or positional relationships indicated are based on the directions or positional relationships shown in the drawings, which are merely for convenience in describing the present utility model and simplifying the description, but are not meant to indicate or imply that the devices or elements to be referred to must have specific directions, be configured and operated in specific directions, and thus should not be construed as limiting the present utility model, the technical solutions of the embodiments of the present utility model may be combined, and the technical features of the embodiments may also be combined to form a new technical solution.

The utility model provides the following technical scheme:

fig. 5 is a schematic perspective view of the torsion spring 14 to be detected in the present utility model.

As shown in fig. 1 to 4, two first support plates 2, 1 second support blocks 10 and 1 clamping block 3 are respectively arranged at the left end, the right end, the front end and the bottom end of a bottom plate 1 by screws, and the lower ends of stop blocks 15 are pressed into square holes in the center of the bottom plate 1, wherein the upper ends of the first support plates 2 are bent, and the bending angles are 45 degrees and are oppositely arranged, so that extension lines of the upper ends of the two first support plates 2 are vertical;

the screw 4 provided with the first handle 5 is screwed through the central threaded hole of the first support plate 2 of the support plate, the front end of the screw 4 is inserted into the central hole of the sliding block 6 and then fixed by a screw, each sliding block 6 is provided with 2 guide pins 9, the guide pins 9 are symmetrical about the screw 4 and ensure the smooth sliding, the guide pins 9 are connected to the first support plate 2 in a sliding way, and the compression screw 11 connects the compression block 7 and the sliding block 6 together;

the second handle 13 is installed on the fastening screw 8, and the fastening screw 8 is screwed through the screw hole of the vertical face of the second supporting block 10, and the screw hole that the fastening screw 8 front end was screwed through the briquetting 12 catches briquetting 12.

The application process of the utility model comprises the following steps:

1. the assembled tool is fixed on a vice or the like workbench through a clamping block 3;

2. the spring feet at the two ends of the torsion spring 14 to be tested correspond to the sliding block 6, and the compression screw 11 is rotated to reduce the interval between the pressing block 12 and the stop block 15 and compress the lower end of the torsion spring 14;

3. unscrewing the fastening screw 8 connecting the compression block 7 and the sliding block 6, putting spring feet at two ends of the torsion spring 14 between the compression block 7 and the sliding block 6 respectively, rotating the screw 4 to enable the sliding blocks 6 at two sides to be close to two upper sides of the stop block 15, and as shown in figure 3, arranging a convex column at the upper end of the stop block 15, and screwing the fastening screw 8 at two divided ends of the sliding block 6 and the convex column;

4. simultaneously, the left and right screw rods 4 are rotated to drive the two sliding blocks 6 to gradually slide along the direction of the screw rods 4, the stretching length of the torsion spring 14 is more than twice the original free length of the double-rotation spring coils, the torsion spring 14 has no brittle failure phenomenon, the torsion spring 14 is a qualified product, otherwise, the torsion spring 14 is an unqualified product, and the hydrogen embrittlement phenomenon of the product is not eliminated.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a hydrogen embrittlement test instrument of two revolved torsional springs which characterized in that: including bottom plate (1), both ends are vertical about bottom plate (1) are provided with first bearing plate (2), two first bearing plate (2) upper end is bent 45 and is set up relatively, first bearing plate (2) upper end department surface sliding that bends is provided with tensile subassembly, tensile subassembly is used for driving torsion spring (14) both ends spring foot and removes, be provided with dog (15) in the middle of bottom plate (1), bottom plate (1) front end is provided with torsional spring fixed subassembly, and both compress tightly torsional spring (14) lower extreme jointly.

2. The hydrogen embrittlement test tool of a double-twist torsion spring according to claim 1, wherein: the lower end of the bottom plate (1) is provided with a clamping block (3).

3. The hydrogen embrittlement test tool of a double-twist torsion spring according to claim 1, wherein: the stretching assembly comprises a screw (4) and a clamping assembly, the screw (4) penetrates through the surface of the bending part at the upper end of the first supporting plate (2) in a threaded connection mode, the clamping assembly is arranged at the lower end of the screw (4), and the clamping assembly is used for clamping spring feet at two ends of the torsion spring (14).

4. A hydrogen embrittlement test tool of a double torsion spring according to claim 3, wherein: the upper end of the screw rod (4) is provided with a first handle (5).

5. A hydrogen embrittlement test tool of a double torsion spring according to claim 3, wherein: the clamping assembly comprises a sliding block (6), a pressing block (7) and a fastening screw (8), wherein the sliding block (6) is arranged at the lower end of the screw rod (4), and the pressing block (7) is movably arranged on the side face of the sliding block (6) through a pressing screw (11).

6. The hydrogen embrittlement test tool of a double torsion spring according to claim 5, wherein: and 2 guide pins (9) are arranged on any sliding block (6), the 2 guide pins (9) are symmetrical about the screw (4) and the other end of the guide pins is connected with the end face of the first supporting plate (2) in a penetrating and sliding manner.

7. The hydrogen embrittlement test tool of a double-twist torsion spring according to claim 1, wherein: the torsional spring fixing assembly comprises a second supporting block (10), a compression screw (11) and a pressing block (12), wherein the second supporting block (10) is arranged at the front end of the bottom plate (1), the compression screw (11) is connected to the vertical surface of the second supporting block (10) in a penetrating type in a threaded mode, and the pressing block (12) is arranged at one end, close to the stop block (15), of the compression screw (11).

8. The hydrogen embrittlement test tool of the double torsion spring according to claim 7, wherein: the other end of the compression screw (11) is provided with a second handle (13).