CN216386250U

CN216386250U - Spring test tool

Info

Publication number: CN216386250U
Application number: CN202122560242.4U
Authority: CN
Inventors: 周磊; 窦沛静; 段琳琳; 丁媛
Original assignee: Mingderunhe Machinery Manufacturing Tianjin Co ltd
Current assignee: Mingderunhe Machinery Manufacturing Tianjin Co ltd
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2022-04-26
Anticipated expiration: 2031-10-22

Abstract

The utility model relates to the technical field of spring testing, and particularly discloses a spring testing tool, which comprises: the testing device comprises a bottom plate, vertical plates, a cross beam and a plurality of testing units, wherein the bottom ends of the two vertical plates are fixedly connected with the bottom plate, and the cross beam is fixedly arranged between the top ends of the two vertical plates; the testing unit comprises an air cylinder, an ejector rod, a pressing block and a pressing piece, wherein an ejector rod assembly part is arranged at the driving end of the air cylinder, the top end of the ejector rod is fixedly connected with the ejector rod assembly part, and the bottom end of the ejector rod is vertically downward; the casting die includes: fixing base, first engaging lug, second engaging lug, fixed axle and pressure head, on first engaging lug and the relative fixation of second engaging lug fixed in fixing base, can dismantle between first engaging lug and the second engaging lug and be provided with the fixed axle, be equipped with the through-hole on the pressure head, the pressure head includes first pressure head and second pressure head, and first pressure head is located the ejector pin under, the second pressure head is located on the briquetting. The utility model has the advantages of simple structure, scientific design, low manufacturing cost, convenient movement, no limitation on test site and high test efficiency.

Description

Spring test tool

Technical Field

The utility model relates to the technical field of spring testing, in particular to a spring testing tool.

Background

The torsion spring is widely applied, if the material is subjected to plastic deformation, the torsion spring fails, and the economic loss and the safety accident caused by the failure are immeasurable, so the tensile strength test of the torsion spring is important. As shown in the attached drawing 3 of the specification, the existing testing mechanism for the double torsion springs can only test one torsion spring at a time, and the testing efficiency is low; if special equipment is purchased for testing, although the testing efficiency can be improved, the cost is too high, the defects of inconvenient movement, limited testing field and the like exist. In view of this, this application proposes a spring test frock.

SUMMERY OF THE UTILITY MODEL

The utility model provides a spring testing tool which is used for solving the problem of low testing efficiency of a double torsion spring in the background technology.

The technical scheme of the utility model is realized as follows:

the utility model provides a spring test frock for test the two torsional springs that await measuring, include: the testing device comprises a bottom plate, vertical plates, a cross beam and a plurality of testing units, wherein the bottom ends of the two vertical plates are fixedly connected with the bottom plate, and the cross beam is fixedly arranged between the top ends of the two vertical plates;

the testing unit comprises an air cylinder, an ejector rod, a pressing block and a pressing piece, wherein an ejector rod assembly part is arranged at the driving end of the air cylinder, the top end of the ejector rod is fixedly connected with the ejector rod assembly part, and the bottom end of the ejector rod is vertically downward; the casting die includes: the fixing base is fixed on the fixing base through the first connecting lug and the second connecting lug, the fixing shaft is detachably arranged between the first connecting lug and the second connecting lug, a through hole for the fixing shaft to penetrate through is formed in the pressure head, the pressure head comprises the first pressure head and the second pressure head, the first pressure head is located under the ejector rod, and the second pressure head is located on the pressure block.

Preferably, be equipped with the fixed orifices on first engaging lug and the second engaging lug respectively, the lateral surface of first engaging lug is equipped with spacing seat, all is equipped with spacing hole on spacing seat and the fixed axle, and the fixed axle inserts spacing hole through the fixed pin and realizes that detachable sets up between two fixed orificess.

Further preferably, the test unit further comprises a base, and the base is fixed on the bottom plate.

Further preferably, the fixing seat is provided with a first positioning hole and a second positioning hole, and the base is provided with two positioning pins corresponding to the first positioning hole and the second positioning hole.

Further preferably, a base heat insulation plate is arranged between the base and the bottom plate.

More preferably, the type of the air cylinder is TN-20X 30S, and an air cylinder heat insulation plate is arranged between the air cylinder and the cross beam.

Most preferably, the number of test units is 3.

Compared with the prior art, simple structure, design science, the cost of manufacture is low and remove the convenience, and not only experimental place is unrestricted, and efficiency of software testing is high moreover.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic perspective view of the compression element of FIG. 1;

fig. 3 is a schematic structural diagram of a double torsion spring a to be measured.

In the figure: A. a double torsion spring to be tested; a1, spring body; a2, an arch connecting rod; a3, mounting part; 1. a base plate; 2. a vertical plate; 3. a cross beam; 4. a cylinder; 41. a cylinder heat insulation plate; 42. a push rod assembly part; 5. a top rod; 6. briquetting; 7. pressing parts; 71. a fixed seat; 72. a first connecting lug; 73. a second engaging lug; 74. a fixed shaft; 75. a first positioning hole; 76. a second positioning hole; 77. a first ram; 78. a second ram; 8. a base; 81. a base insulation board.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown collectively in fig. 1-2: the utility model provides a spring test frock for test to the two torsional spring A that await measuring, include: the testing device comprises a bottom plate 1, vertical plates 2, a cross beam 3 and 3 testing units, wherein the bottom ends of the two vertical plates 2 are fixedly connected with the bottom plate 1 through screws, and the cross beam 3 is fixedly arranged between the top ends of the two vertical plates 2 through screws;

the testing unit comprises a cylinder 4 (model is TN-20X 30S), an ejector rod 5, a pressing block 6 and a pressing piece 7, wherein an ejector rod assembly 42 is arranged at the driving end of the cylinder 4, the top end of the ejector rod 5 is fixedly connected with the ejector rod assembly 42, and the bottom end of the ejector rod is vertically downward; the pressing member 7 includes: a fixed seat 71, a first connecting lug 72, second engaging lug 73, fixed axle 74 and pressure head, first engaging lug 72 and second engaging lug 73 relatively fixed in on fixing base 71, can dismantle between first engaging lug 72 and the second engaging lug 73 and be provided with fixed axle 74 (specifically, be equipped with the fixed orifices on first engaging lug 72 and the second engaging lug 73 respectively, the lateral surface of first engaging lug 72 is equipped with spacing seat (not sign), all be equipped with spacing hole (not sign) on spacing seat and the fixed axle 74, fixed axle 74 inserts spacing hole through fixed pin (not sign) and realizes that the detachable sets up between two fixed orifices), be equipped with on the pressure head and be used for fixed axle 74 to pass in order to realize pressure head and fixed axle 74 rotatable coupling's through-hole, the pressure head includes first pressure head 77 and second pressure head 78, first pressure head 77 is located ejector pin 5 under, second pressure head 78 locates on briquetting 6.

The double-torsion spring A comprises two spring bodies A1, wherein one ends of the two spring bodies A1, which are far away from each other, are respectively provided with a mounting part A3, and the ends, which are close to each other, are connected through an arched connecting rod A2. The working principle is as follows: firstly, a double torsion spring A to be tested is arranged between the first connecting lug 72 and the second connecting lug 73, then the pressure head is arranged in a neutral position of the arched connecting rod A2, the through hole on the pressure head is aligned with the through holes of the two spring bodies A1, finally the fixing shaft 74 is sequentially inserted into the spring bodies A1 of the second connecting lug 73, the through hole of the pressure head, the spring bodies A1 and the first connecting lug 72, and then the fixing shaft 74 is fixed with the limiting seat on the outer side face of the first connecting lug 72 through the fixing pin. After fixing the double torsion spring A to be measured, the first pressure head 77 is located right above the arch connecting rod A2, the bottom end of the ejector rod 5 is located right above the first pressure head 77, the second pressure head 78 is located on the pressing block 6, and the installation part A3 is arranged on the upper surface of the fixing seat 71. And starting the cylinder 4, driving the ejector rod 5 to downwards act on the arch connecting rod A2 under the driving of the cylinder 4, and carrying out reciprocating operation to realize the test of the double torsion spring A to be tested.

In order to facilitate installation, the test unit further comprises a base 8 for installing the pressing piece 7 and the pressing block 6, and during manufacturing, the pressing piece 7 and the pressing block 6 are firstly installed on the base 8, and then the base 8 is fixed on the bottom plate 1.

Specifically, the fixing base 71 is provided with a first positioning hole 75 and a second positioning hole 76, the base 8 is provided with two positioning pins corresponding to the first positioning hole 75 and the second positioning hole 76, and when the pressing member 7 is mounted on the base 8, the first positioning hole 75 and the second positioning hole 76 only need to be inserted into the two positioning pins respectively.

In order to avoid the conduction of heat generated by the test to the bottom plate 1, a base heat insulation plate 81 is arranged between the base 8 and the bottom plate 1; in order to avoid heat generated by long-term testing from being conducted to the cross beam 3, a cylinder heat insulation plate 41 is provided between the cylinder 4 and the cross beam 3.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein. The structures or connection modes not described in detail in the utility model are realized by adopting the prior art.

Claims

1. The utility model provides a spring test frock for test the two torsional springs (A) that await measuring, its characterized in that: the method comprises the following steps: the testing device comprises a bottom plate (1), vertical plates (2), a cross beam (3) and a plurality of testing units, wherein the bottom ends of the two vertical plates (2) are fixedly connected with the bottom plate (1), and the cross beam (3) is fixedly arranged between the top ends of the two vertical plates (2);

the testing unit comprises a cylinder (4), an ejector rod (5), a pressing block (6) and a pressing piece (7), an ejector rod assembly part (42) is arranged at the driving end of the cylinder (4), the top end of the ejector rod (5) is fixedly connected with the ejector rod assembly part (42), and the bottom end of the ejector rod assembly part is vertically downward; the pressing member (7) includes: fixing base (71), first engaging lug (72), second engaging lug (73), fixed axle (74) and pressure head, first engaging lug (72) and second engaging lug (73) relatively fixed in on fixing base (71), can dismantle between first engaging lug (72) and second engaging lug (73) and be provided with fixed axle (74), be equipped with the through-hole that is used for fixed axle (74) to pass on the pressure head, the pressure head includes first pressure head (77) and second pressure head (78), and first pressure head (77) are located ejector pin (5) under, and second pressure head (78) are located on briquetting (6).

2. The spring testing tool of claim 1, wherein: be equipped with the fixed orifices on first engaging lug (72) and second engaging lug (73) respectively, the lateral surface of first engaging lug (72) is equipped with spacing seat, all be equipped with spacing hole on spacing seat and fixed axle (74), fixed axle (74) insert through the fixed pin spacing hole realizes that detachable sets up in two between the fixed orifices.

3. The spring testing tool of claim 1, wherein: the test unit further comprises a base (8), and the base (8) is fixed on the bottom plate (1).

4. The spring testing tool of claim 3, wherein: a first positioning hole (75) and a second positioning hole (76) are formed in the fixing seat (71), and two positioning pins corresponding to the first positioning hole (75) and the second positioning hole (76) are arranged on the base (8).

5. The spring testing tool of claim 4, wherein: a base heat insulation plate (81) is arranged between the base (8) and the bottom plate (1).

6. The spring testing tool of claim 1, wherein: the model of the cylinder (4) is TN-20X 30S, and a cylinder heat insulation plate (41) is arranged between the cylinder (4) and the cross beam (3).

7. The spring test tool according to any one of claims 1 to 6, characterized in that: the number of the test units is 3.