A shell pressure test fixture

Abstract

The utility model relates to a kind of shell fragment pressure test fixture, including pedestal and the product fixed component being located on the pedestal, and the bracket being located on the pedestal, the kind of shell fragment pressure test fixture further include the test executor opposite motion with the product fixed component, the test executor is slidably connected in the bracket, and the test executor is close to the product fixed component and is equipped with measuring assembly in one end, the test executor is equipped with stop piece in one end away from the product fixed component. Advantage lies in: the present scheme is by modularization design, significantly improves the versatility of jig and reduces test cost;Test executor can accurately limit downstroke, ensure that test data is accurate and reliable;While avoiding product damage, it greatly improves test operation efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of parts testing, and in particular relates to a spring pressure testing fixture. Background Technology

[0002] In the existing technology, the test fixture for spring fragments needs to be designed with different load-bearing components when testing different products. This not only increases the manufacturing cost of the fixture, but also greatly affects the testing efficiency. At the same time, conventional test fixtures generally lack reliable and convenient adjustable limit mechanisms, which cannot accurately limit the downward pressure and fixing height of the test component. Utility Model Content

[0003] The purpose of this utility model is to provide a spring pressure testing fixture that can solve the above-mentioned technical problems.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A spring pressure testing fixture includes a base and a product fixing assembly disposed on the base, and a bracket disposed on the base. The spring pressure testing fixture also includes a test actuator that moves relative to the product fixing assembly. The test actuator is slidably connected to the bracket, and a measuring component is provided at one end of the test actuator near the product fixing assembly, and a stop component is provided at the other end of the test actuator away from the product fixing assembly.

[0005] Furthermore, a guide groove is provided on the bracket, and at least a portion of the test actuator is placed within the guide groove.

[0006] Furthermore, the lateral width of the stop member is greater than the lateral width of the guide groove.

[0007] Furthermore, a fixing plate is provided on the bracket, the fixing plate being at least partially in contact with the test actuator and confining the test actuator within the guide groove.

[0008] Furthermore, one end of the fixing plate is rotatably connected to the bracket, and the other end is detachably connected to the bracket via a fixing component.

[0009] Furthermore, the fixing component includes a knurled nut and a fixing shaft threadedly connected to the knurled nut, the fixing shaft being connected to either the fixing plate or the bracket.

[0010] Furthermore, the product fixing assembly includes a base plate that is convex-contactly connected to the base, and a cover plate that is convex-contactly connected to the base plate, with an accommodating space between the base plate and the cover plate.

[0011] Furthermore, the cover plate has clearance holes, through which at least a portion of the measuring component enters during testing and comes into contact with the product.

[0012] Furthermore, the measuring component includes a pressure sensor and a test block, the pressure sensor being fixed to the end of the test actuator, and the test block being connected to the pressure sensor.

[0013] Furthermore, the test block is provided with protrusions that contact and connect with the product.

[0014] Compared with existing technologies, the advantages of this application are: the modular design of this solution significantly improves the versatility of the fixture and reduces testing costs; the test actuator can precisely limit the downward stroke to ensure accurate and reliable test data; and the efficiency of test operation is greatly improved while avoiding product damage. Attached Figure Description

[0015] Figure 1 This is a drawing showing the main assembly of a spring pressure testing fixture according to the present invention; Figure 2 Two figures show the main assembly of a spring pressure testing fixture according to this utility model; Figure 3 This is a front view of the main assembly of a spring pressure testing fixture according to the present invention; Figure 4 This is an assembly drawing of the main body of the product fixing component of a spring pressure testing fixture according to this utility model; Figure 5 This is an assembly drawing of the main body of the test actuator of a spring pressure testing fixture according to the present invention.

[0016] In the figure, the components are: base 1, product fixing component 2, bottom plate 21, clearance hole 211, cover plate 22, bracket 3, guide groove 31, test execution component 4, measuring component 5, pressure sensor 51, test block 52, protrusion 521, stop component 6, fixing plate 7, fixing component 8, knurled nut 81, and fixing shaft 82. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0018] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0020] In the description of this embodiment, the terms "upper," "lower," "right," and "left," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0021] Example 1

[0022] like Figures 1-2 As shown, in this embodiment, a spring pressure testing fixture includes a base 1 placed on a horizontal table, and a gantry-shaped support 3 on the base 1. The base 1 is provided with a detachable product fixing component 2. The product fixing component 2 includes a base plate 21 that is concave-convexly connected to the base 1, and a cover plate 22 that is concave-convexly connected to the base plate 21. There is a receiving space between the base plate 21 and the cover plate 22. The product to be tested is fixed in the receiving space. The cover plate 22 has a clearance hole 211. During testing, at least a part of the measuring component 5 enters the clearance hole 211 and contacts the product. The base plate 21 and the base 1 are precisely positioned by a positioning pin.

[0023] like Figure 2 As shown, the spring pressure testing fixture also includes a test actuator 4 that moves relative to the product fixing assembly 2. The test actuator 4 is slidably connected to the bracket 3, as shown. Figure 2As shown, a guide groove 31 is provided on the bracket 3, and the guide rod part of the test actuator 4 is placed in the guide groove 31. The test actuator 4 achieves vertical sliding cooperation with the bracket 3 through the guide rail, ensuring that the direction of the pressure applied during the test is perpendicular to the plane of the test piece. The guide rod part of the test actuator 4 can be changed in length according to different products under test. This design can realize the test of spring pieces of different products. The test actuator 4 can be replaced according to the height defined for spring piece testing, and it can be used by multiple models.

[0024] And as Figure 5 As shown, a measuring component 5 is provided at one end of the test actuator 4 near the product fixing component 2. The measuring component 5 has a high-precision pressure sensor, which can collect pressure curves and stroke data in real time and transmit them to an external analytical instrument via a data cable. Specifically, the measuring component 5 includes a pressure sensor 51 and a test block 52. The pressure sensor 51 is fixed to the end of the test actuator 4, and the test block 52 is connected to the pressure sensor 51. The pressure sensor 51 is electrically connected to an external analytical instrument. The test block 52 is used to contact the test spring. A protrusion 521 for contacting and connecting with the product is also provided at the lower end of the test block 52. The shape and size of the test block 52 and the protrusion 521 can be replaced according to the different products being tested. The test block 52 and the pressure sensor 51 are detachably connected, which greatly improves the applicability of the entire spring pressure testing fixture.

[0025] Furthermore, a stop member 6 is provided at the end of the test execution member 4 away from the product fixing component 2. In this embodiment, the stop member 6 adopts the following... Figure 5 The protrusion shown is used to set the maximum downward stroke of the test actuator 4 to prevent excessive compression of the spring. Specifically, the lateral width of the stop 6 is greater than the lateral width of the guide groove 31. At the same time, the stop 6 can also be used as a holding part and a force application part during operation, so that the test actuator 4 moves downward at a uniform speed until it touches the surface of the spring.

[0026] like Figures 1-3As shown, a fixing plate 7 is also provided on the aforementioned bracket 3. The fixing plate 7 is at least partially in contact with the test actuator 4. The fixing plate 7 is used to confine the test actuator 4 in the guide groove 31 during testing, preventing the test actuator 4 from moving in directions other than the guiding direction of the guide groove 31. In this embodiment, one end of the fixing plate 7 is rotatably connected to the bracket 3 about an axis, and the other end is detachably connected to the bracket 3 through a fixing assembly 8. The fixing assembly 8 includes a fixing shaft 82 provided on the aforementioned bracket 3, and a knurled nut 81 threadedly connected to the fixing shaft 82. The knurled nut 81 presses the movable end of the fixing plate 7 against the contact surface of the bracket 3 by the pressure generated by tightening, forming a stable rigid connection. When it is necessary to disassemble, maintain, or replace the test actuator 4, simply loosen the knurled nut 81 counterclockwise to unlock it. At this time, the fixing plate 7 can be rotated open about an axis, completely exposing the internal space of the guide groove 31.

[0027] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A spring pressure testing fixture, comprising a base (1) and a product fixing assembly (2) disposed on the base (1), and a bracket (3) disposed on the base (1), characterized in that, The spring pressure testing fixture further includes a test actuator (4) that moves relative to the product fixing component (2). The test actuator (4) is slidably connected to the bracket (3), and a measuring component (5) is provided at one end of the test actuator (4) near the product fixing component (2), and a stop component (6) is provided at one end of the test actuator (4) away from the product fixing component (2).

2. The spring pressure testing fixture according to claim 1, characterized in that, A guide groove (31) is provided on the bracket (3), and at least a portion of the test execution element (4) is placed in the guide groove (31).

3. The spring pressure testing fixture according to claim 2, characterized in that, The lateral width of the stop member (6) is greater than the lateral width of the guide groove (31).

4. The spring pressure testing fixture according to claim 2, characterized in that, A fixing plate (7) is also provided on the bracket (3), the fixing plate (7) is at least partially in contact with the test execution member (4), and the test execution member (4) is confined in the guide groove (31).

5. A spring pressure testing fixture according to claim 4, characterized in that, One end of the fixing plate (7) is rotatably connected to the bracket (3), and the other end is detachably connected to the bracket (3) via a fixing component (8).

6. A spring pressure testing fixture according to claim 5, characterized in that, The fixing component (8) includes a knurled nut (81) and a fixing shaft (82) threadedly connected to the knurled nut (81), the fixing shaft (82) being connected to either the fixing plate (7) or the bracket (3).

7. The spring pressure testing fixture according to claim 1, characterized in that, The product fixing component (2) includes a base plate (21) that is connected to the base (1) in a concave-convex fit, and a cover plate (22) that is connected to the base plate (21) in a concave-convex fit, with a receiving space between the base plate (21) and the cover plate (22).

8. A spring pressure testing fixture according to claim 7, characterized in that, The cover plate (22) has a clearance hole (211) through which at least a portion of the measuring component (5) enters during testing and comes into contact with the product.

9. A spring pressure testing fixture according to claim 1, characterized in that, The measurement component (5) includes a pressure sensor (51) and a test block (52). The pressure sensor (51) is fixed to the end of the test actuator (4), and the test block (52) is connected to the pressure sensor (51).

10. A spring pressure testing fixture according to claim 9, characterized in that, The test block (52) is provided with protrusions (521) that are in contact with the product.

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