CN220903056U - Fixing device for spring fatigue test - Google Patents

Abstract

The utility model discloses a fixing device for spring fatigue test, which comprises a base, wherein supporting rods are arranged on two sides of the top of the base, the outer walls of the two supporting rods penetrate through the same pressing plate, a bottom plate is arranged at the top of the base, an upper fixing column is arranged at the bottom of the pressing plate, a lower fixing column is arranged at the top of the bottom plate, the same springs to be tested are sleeved on the outer walls of the upper fixing column and the lower fixing column, an adjusting assembly is arranged between the bottom plate and the two supporting rods, the same top plate is arranged at the top of the two supporting rods, and an electric cylinder is arranged at the top of the top plate.

Description

Fixing device for spring fatigue test

Technical Field

The utility model relates to the technical field of spring testing, in particular to a fixing device for spring fatigue testing.

Background

Springs are a common mechanical part that works with elasticity and are widely used in various industries. In the process of spring production, the spring needs to be subjected to fatigue test to evaluate the service life and durability, and as disclosed in publication No. CN207675424U, the spring fatigue testing machine is simple in structure and convenient to use, can control the compression process of the spring in the fatigue test, and can stop at any time. However, when the device is used, the spring is fixed only through the spring clamping groove, so that the spring is easy to bend sideways when the spring stretches out of the spring clamping groove in the fatigue test process, and further the spring is easy to damage, the accuracy of the test result is affected, and therefore, the fixing device for the spring fatigue test is necessary to be provided.

Disclosure of utility model

The utility model aims to provide a fixing device for spring fatigue test, which is used for solving the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a fixing device for spring fatigue test, includes the base, the bracing piece is all installed to the top both sides of base, two the outer wall of bracing piece runs through there is same clamp plate, the top of base is provided with the bottom plate, the fixed column is installed to the bottom of clamp plate, the fixed column down is installed at the top of bottom plate, the outer wall cover of going up fixed column and lower fixed column is equipped with same spring that awaits measuring, all be provided with adjusting part between bottom plate and two bracing pieces, two same roof is installed at the top of bracing piece, the electric jar is installed at the top of roof, and the output of electric jar runs through the roof and is connected with the top of clamp plate.

Preferably, the adjusting component comprises a sliding sleeve, the sliding sleeve is connected with the side face of the bottom plate, the sliding sleeve is sleeved on the outer wall of the supporting rod, a plurality of adjusting screw holes are formed in the outer wall of the supporting rod at vertical equal intervals, an adjusting bolt is inserted into the outer wall of the sliding sleeve, and the adjusting bolt is in threaded connection with the corresponding adjusting screw holes.

Preferably, the number of the upper fixing columns and the lower fixing columns is multiple, and the positions of the upper fixing columns and the lower fixing columns are corresponding.

Preferably, the upper fixing column is of a hollow structure and is downward in opening, and the outer diameter of the lower fixing column is smaller than the inner diameter of the upper fixing column.

Preferably, the front surface of the base is provided with a controller, and the electric cylinder is electrically connected with the controller.

Preferably, foot pads are arranged at four corners of the bottom of the base, and the foot pads are made of rubber materials.

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

according to the utility model, the adjusting assembly is arranged, the height of the bottom plate can be adjusted through the matching of the sliding sleeve, the adjusting screw hole and the adjusting bolt, so that the distance between the upper fixing column and the lower fixing column can be adapted to springs to be tested with different lengths, and the upper fixing column and the lower fixing column which are mutually sleeved can effectively prevent the springs to be tested from being bent sideways in the fatigue test process, so that the springs to be tested are not easy to damage, and the accuracy of the test result is ensured.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of a regulating assembly according to the present utility model;

FIG. 3 is a schematic view of a part of the structure of the present utility model.

In the figure: 1. a base; 2. a support rod; 3. a pressing plate; 4. a bottom plate; 5. an upper fixing column; 6. a lower fixing column; 7. a spring to be tested; 8. an adjustment assembly; 81. a sliding sleeve; 82. adjusting the screw hole; 83. an adjusting bolt; 9. a top plate; 10. an electric cylinder; 11. a controller; 12. foot pad.

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.

Example 1:

Referring to fig. 1 and 2, in the process of producing the spring, fatigue test is required to evaluate the life and durability of the spring, the present utility model provides a technical scheme: the utility model provides a fixing device for spring fatigue test, the on-line screen storage device comprises a base 1, bracing piece 2 is all installed to the top both sides of base 1, the same clamp plate 3 has been run through to the outer wall of two bracing pieces 2, the top of base 1 is provided with bottom plate 4, fixed column 5 is installed to the bottom of clamp plate 3, lower fixed column 6 is installed at the top of bottom plate 4, all be provided with adjusting part 8 between bottom plate 4 and two bracing pieces 2, adjusting part 8 includes sliding sleeve 81, sliding sleeve 81 is connected with the side of bottom plate 4, and the sliding sleeve 81 cover is established on the outer wall of bracing piece 2, a plurality of adjusting screw 82 has been seted up to the vertical equidistance of outer wall of bracing piece 2, the outer wall of sliding sleeve 81 is inserted and is equipped with adjusting bolt 83, and adjusting bolt 83 and corresponding adjusting screw 82 threaded connection, through the sliding sleeve 81, adjusting screw 82 and adjusting bolt 83's cooperation use, can be adjusted the height of bottom plate 4, distance between upper fixed column 5 and the lower fixed column 6 can adapt to the spring of different length.

In this embodiment, please refer to fig. 1 and 3, the upper fixing column 5 is of a hollow structure and has a downward opening, the outer diameter of the lower fixing column 6 is smaller than the inner diameter of the upper fixing column 5, so that a sleeved structure is formed between the upper fixing column 5 and the lower fixing column 6, the outer walls of the upper fixing column 5 and the lower fixing column 6 are sleeved with the same spring 7 to be tested, and the spring 7 to be tested is sleeved on the upper fixing column 5 and the lower fixing column 6, so that the spring 7 to be tested can be effectively prevented from being laterally bent in the fatigue test process, damage to the spring 7 to be tested is not easy to occur, and the accuracy of the test result is ensured.

In this embodiment, referring to fig. 1, the number of the upper fixing columns 5 and the lower fixing columns 6 is plural, and the positions of the upper fixing columns 5 and the lower fixing columns 6 correspond to each other, so that fatigue tests can be performed on plural springs 7 to be tested simultaneously.

In this embodiment, referring to fig. 1, the top of two support rods 2 is provided with the same top plate 9, the top of the top plate 9 is provided with an electric cylinder 10, and the output end of the electric cylinder 10 penetrates through the top plate 9 and is connected with the top of the pressing plate 3, and the electric cylinder 10 can drive the top plate 9 to reciprocate up and down along the support rods 2, so that compression reciprocating fatigue test can be performed on the spring 7 to be tested.

In this embodiment, referring to fig. 1, a controller 11 is mounted on the front surface of the base 1, and an electric cylinder 10 is electrically connected with the controller 11, where the controller 11 can control the start and stop, the stroke, etc. of the electric cylinder 10.

Example 2:

referring to fig. 1, this embodiment differs from the first embodiment in that: foot pads 12 are all installed at the bottom four corners department of base 1, and the foot pads 12 adopt the rubber material, can improve the stability when base 1 uses through the foot pads 12 of rubber material.

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 (6)

1. The utility model provides a fixing device for spring fatigue test, includes base (1), its characterized in that: support bar (2) are all installed to the top both sides of base (1), two the outer wall of support bar (2) runs through and has same clamp plate (3), the top of base (1) is provided with bottom plate (4), fixed column (5) are installed to the bottom of clamp plate (3), lower fixed column (6) are installed at the top of bottom plate (4), the outer wall cover of going up fixed column (5) and lower fixed column (6) is equipped with same spring (7) that awaits measuring, all be provided with adjusting part (8) between bottom plate (4) and two support bar (2), two same roof (9) are installed at the top of support bar (2), electric jar (10) are installed at the top of roof (9), and the output of electric jar (10) runs through roof (9) and is connected with the top of clamp plate (3).

2. The spring fatigue testing fixture of claim 1, wherein: the adjusting component (8) comprises a sliding sleeve (81), the sliding sleeve (81) is connected with the side face of the bottom plate (4), the sliding sleeve (81) is sleeved on the outer wall of the supporting rod (2), a plurality of adjusting screw holes (82) are formed in the outer wall of the supporting rod (2) at vertical equal intervals, an adjusting bolt (83) is inserted into the outer wall of the sliding sleeve (81), and the adjusting bolt (83) is in threaded connection with the corresponding adjusting screw holes (82).

3. The spring fatigue testing fixture of claim 1, wherein: the number of the upper fixing columns (5) and the number of the lower fixing columns (6) are multiple, and the positions of the upper fixing columns (5) and the positions of the lower fixing columns (6) are corresponding.

4. The spring fatigue testing fixture of claim 1, wherein: the upper fixing column (5) is of a hollow structure and is downward in opening, and the outer diameter of the lower fixing column (6) is smaller than the inner diameter of the upper fixing column (5).

5. The spring fatigue testing fixture of claim 1, wherein: the front of the base (1) is provided with a controller (11), and the electric cylinder (10) is electrically connected with the controller (11).

6. The spring fatigue testing fixture of claim 1, wherein: foot pads (12) are arranged at four corners of the bottom of the base (1), and the foot pads (12) are made of rubber materials.