Upper pressure head of detection support

Abstract

The utility model relates to the technical field of material testing, in particular to an upper pressure head of a detection support, which comprises a bottom plate and two groups of upper pressure components arranged at two ends of the bottom plate at intervals. The upper pressing assembly comprises two parallel support plates, a cross beam connected with the support plates and bearing assemblies arranged at the two ends of the cross beam and connected with the support plates. The support plate is connected with the bottom plate, the bearing assembly comprises a bearing seat and a bearing, and limiting hoops are further arranged at the two ends of the cross beam and located on the inner side of the bearing assembly. The beneficial effects of the utility model lie in that the innovative structure for loading the bearing on the upper pressure head of the fatigue machine detection support is provided, the bearing is arranged between the cross beam and the upper pressure head, flexible connection between the cross beam and the upper pressure head is realized, the cross beam is effectively prevented from extruding a sample piece, and the test accuracy and the safety of the sample piece are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic device manufacturing, in particular to an upper pressure head of a detection bracket. Background Art

[0002] Existing fatigue testing machines often use an upper indenter to apply a continuous or alternating load to a specimen during material fatigue testing to simulate the fatigue process under actual working conditions. However, the upper indenter and crossbeam are typically rigidly connected. Directly applying force can easily cause the crossbeam to squeeze the specimen, affecting the accuracy of test results and even damaging the specimen. Utility Model Content

[0003] The technical problem to be solved by the present invention is to provide an upper pressure head of a detection bracket, which effectively solves the problems in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the present invention is: an upper pressure head of a detection bracket, comprising a bottom plate,

[0005] It also includes an upper pressing assembly, wherein two groups of the upper pressing assemblies are spaced apart and arranged at both ends of the bottom plate;

[0006] The upper pressure assembly includes two support plates arranged radially parallel to each other, a crossbeam connecting the support plates, and a bearing assembly arranged at both ends of the crossbeam and connected to the support plates; the support plate is connected to the base plate, and the bearing assembly includes a bearing seat and a bearing, and a limiting hoop is also provided at both ends of the crossbeam and on the inner side of the bearing assembly.

[0007] Furthermore, the bracket plate is connected to the base plate through mounting grooves provided at both ends of the base plate;

[0008] The mounting groove includes a first mounting groove and a second mounting groove, and the first mounting groove and the second mounting groove are axially spaced apart.

[0009] Furthermore, the first mounting groove and the second mounting groove are both elliptical in shape.

[0010] Furthermore, the limiting hoop is a circular ring, including an inner ring and an outer ring, and a first adjustment opening is provided between the inner ring and the outer ring, and the first adjustment opening is symmetrically located along the center of the inner ring.

[0011] A second adjustment port is provided.

[0012] Furthermore, a mounting hole is provided on the outer side of the first adjustment port.

[0013] Furthermore, the upper end of the bracket plate is connected to the base plate, and the lower end is a mounting ring, and the bearing assembly is embedded in the mounting ring.

[0014] Furthermore, the lower end of the mounting ring is provided with a second adjustment port.

[0015] Furthermore, the upper end surface of the bracket plate is provided with three threaded holes arranged at intervals.

[0016] Furthermore, threaded holes are provided at intervals in the center of the bottom plate.

[0017] Furthermore, the threaded holes are arranged at intervals around the circumference with the center of the base plate as the center of the circle.

[0018] The beneficial effect of the utility model is to provide an innovative structure for loading the bearing of the pressure head on the fatigue machine detection bracket. By arranging a bearing between the crossbeam and the upper pressure head, a flexible connection between the two is achieved, which effectively avoids the squeezing of the sample by the crossbeam, thereby improving the accuracy of the test and the safety of the sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a schematic structural diagram of the upper pressure head of the detection bracket in an embodiment of the present utility model;

[0021] Figure 2 This is a structural diagram of the upper pressure assembly in an embodiment of the present utility model;

[0022] Figure 3 This is a structural diagram of the bottom plate in an embodiment of the present utility model;

[0023] Figure 4 It is a schematic structural diagram of the limiting hoop in the embodiment of the present utility model.

[0024] Figure markings: 1. Base plate; 2. Upper pressure assembly; 21. Bracket plate; 211. Mounting ring; 22. Crossbeam; 23. Bearing assembly; 231. Bearing seat; 232. Bearing; 3. Limiting hoop; 4. Mounting groove; 41. First mounting groove; 42. Second mounting groove; 5. First adjustment port; 6. Second adjustment port; 7. Mounting hole; 8. Third adjustment port; 9. Threaded hole; 10. Through hole. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit this invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] like Figures 1 to 4 The upper pressure head of the detection bracket shown includes a base plate 1 and an upper pressure assembly 2, and two groups of upper pressure assemblies 2 are arranged at both ends of the base plate 1 at intervals; the upper pressure assembly 2 includes two bracket plates 21 arranged radially parallel to each other, a crossbeam 22 connecting the bracket plates 21, and a bearing assembly 23 arranged at both ends of the crossbeam 22 and connected to the bracket plate 21; the bracket plate 21 is connected to the base plate 1, and the bearing assembly 23 includes a bearing seat 231 and a bearing 232. A limit hoop 3 is also provided at both ends of the crossbeam 22 and on the inner side of the bearing assembly 23.

[0029] The implementation process of the present invention is that during the test, the motor or other driving device located above the base plate 1 drives the base plate to move downward, and the test load is transmitted to the crossbeam 22 through the support plates 21 and the bearing assembly 23 on both sides, and then transmitted to the sample. Due to the presence of the bearing assembly 23, a flexible connection is formed between the support plate 21 and the crossbeam 22. At the same time, the setting of the limiting hoop 3 effectively solves the positioning problem of the sample and avoids damage to the sample due to uneven load distribution. The beneficial effect of the present invention is to provide an innovative structure for loading the bearing of the pressure head on the fatigue machine detection bracket. By setting a bearing between the crossbeam and the upper pressure head, a flexible connection between the two is achieved, which effectively avoids the crossbeam squeezing the sample, thereby improving the accuracy of the test and the safety of the sample.

[0030] In the present invention, the support plate 21 is connected to the base plate 1 via mounting slots 4 provided at both ends of the base plate 1. The mounting slots 4 include a first mounting slot 41 and a second mounting slot 42, which are axially spaced apart. Because the mounting slots 4 are specifically designed to precisely receive and secure the support plate 21, they provide a more stable connection than simple bolting or welding. In particular, when the first and second mounting slots 41, 42 are axially spaced apart, they provide dual support points for the support plate 21, enhancing the stability of the entire upper pressure head structure.

[0031] As a preferred embodiment of the above embodiment, both the first mounting groove 41 and the second mounting groove 42 are elliptical in shape. Compared to circular or square shapes, elliptical mounting grooves offer greater flexibility and can better adapt to the size of the support plate 21. In particular, when the support plate 21 has slight dimensional deviations or shape changes, the elliptical mounting groove provides a wider tolerance range, ensuring that the support plate 21 is securely mounted on the base plate 1. Furthermore, the elliptical shape of the first mounting groove 41 and the second mounting groove allows for adjustment of the spacing between the two crossbeams 22 to meet the loading requirements of different specifications and standards.

[0032] In the present invention, the limiting hoop 3 is set as a circular ring, including an inner ring and an outer ring, a first adjustment opening 5 is provided between the inner ring and the outer ring, and a second adjustment opening 6 is provided symmetrically along the center of the inner ring with respect to the first adjustment opening 5. The presence of the first adjustment opening 5 and the second adjustment opening 6 allows the diameter of the limiting hoop 3 to be flexibly adjusted. By adjusting the diameter of the limiting hoop 3, it can be ensured that the limiting hoop 3 is always tightly wrapped around the beam 22 to prevent it from unnecessary displacement or shaking. The circular ring design of the limiting hoop 3 enables it to be evenly distributed around the beam 22, providing all-round support and limiting effects, which helps to enhance the stability of the beam 22 and prevent it from bending or deformation when subjected to external forces.

[0033] As a preferred embodiment of the above embodiment, a mounting hole 7 is provided outside the first adjustment opening 5. The mounting hole 7 provides a fixing point for the limiting hoop 3. By installing a fastener (such as a bolt or screw) in the mounting hole 7, the connection between the limiting hoop 3 and the crossbeam 22 can be further stabilized, helping to prevent the limiting hoop 3 from loosening or falling off due to vibration or external forces during long-term use.

[0034] In the present invention, the upper end of the bracket plate 21 is connected to the base plate 1, and the lower end is a mounting ring 211, and the bearing assembly 23 is embedded in the mounting ring 211. By tightly connecting the upper end of the bracket plate 21 to the base plate 1, it can be ensured that the device will not shake or tilt due to external forces during operation. The design of the mounting ring 211 makes the installation of the bearing assembly 23 more convenient and quick. It is only necessary to embed the bearing assembly 23 into the mounting ring 211 and fix it properly without the need for complicated alignment or adjustment processes. Similarly, when maintenance or replacement of the bearing assembly is required, it can also be quickly completed by disassembling the mounting ring 211. As a transmission component, the performance of the bearing assembly 23 directly affects the transmission accuracy and efficiency of the entire device. By embedding the bearing assembly 23 into the mounting ring 211, it can be ensured that it always maintains the correct position and posture during operation, thereby achieving precise transmission.

[0035] As a preferred feature of the above embodiment, the lower end of the mounting ring 211 is provided with a third adjustment opening 8. The provision of the third adjustment opening 8 allows for flexible adjustment of the diameter or other dimensions of the mounting ring 211, which is crucial for accommodating bearing assemblies 23 of varying sizes or specifications. Adjusting the third adjustment opening 8 ensures that the mounting ring 211 tightly and securely accommodates the bearing assembly 23, even with slight variations in bearing assembly size. During installation of the bearing assembly 23, the third adjustment opening 8 serves as a guide or adjustment space, making the installation process smoother and more efficient. The third adjustment opening 8 allows for fine-tuning of the bearing assembly to ensure its proper and secure insertion into the mounting ring 211. The design of the third adjustment opening 8 also enhances the stability of the connection between the mounting ring 211 and the bearing assembly 23. Appropriate locking or fastening mechanisms (such as fasteners secured through the third adjustment opening) ensure that the bearing assembly does not loosen or fall out during operation.

[0036] In the present invention, the upper surface of the support plate 21 is provided with three spaced-apart threaded holes 9. The design of the threaded holes 9 allows for the secure connection of the support plate 21 to the base plate 1 or other components using fasteners such as bolts and screws. Compared to other non-threaded connections (such as welding and riveting), this connection offers greater strength and stability, can withstand greater loads and vibrations, and ensures stable operation of the device under complex operating conditions.

[0037] In the present invention, the center of the base plate 1 is provided with spaced through holes 10. These serve as mounting points for other components or accessories, connecting the base plate 1 to the drive mechanism via bolts and other components. The through holes 10 are arranged in a circular pattern centered on the center of the base plate 1, helping to ensure consistent driving force from the drive mechanism across the entire detection bracket.

[0038] Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and the specification are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An upper pressure head of a detection bracket, comprising a bottom plate (1), characterized in that: It also includes an upper pressing assembly (2), wherein two groups of the upper pressing assemblies (2) are arranged at intervals at both ends of the bottom plate (1); The upper pressure assembly (2) comprises two bracket plates (21) arranged radially parallel to each other, a crossbeam (22) connecting the bracket plates (21), and a bearing assembly (23) arranged at both ends of the crossbeam (22) and connected to the bracket plates (21); the bracket plates (21) are connected to the base plate (1), the bearing assembly (23) comprises a bearing seat (231) and a bearing (232), and a limiting hoop (3) is further provided at both ends of the crossbeam (22) and on the inner side of the bearing assembly (23).

2. The upper pressure head of the detection bracket according to claim 1, characterized in that: The bracket plate (21) is connected to the base plate (1) via mounting grooves (4) provided at both ends of the base plate (1); The mounting groove (4) comprises a first mounting groove (41) and a second mounting groove (42), and the first mounting groove (41) and the second mounting groove (42) are arranged axially spaced apart.

3. The upper pressure head of the detection bracket according to claim 2, characterized in that: The first installation groove (41) and the second installation groove (42) are both elliptical in shape.

4. The upper pressure head of the detection bracket according to claim 1, characterized in that: The limiting hoop (3) is provided in a circular ring configuration, comprising an inner ring and an outer ring, a first regulating opening (5) being provided between the inner ring and the outer ring, and a second regulating opening (6) being provided at a position symmetrical to the first regulating opening (5) along the center of the inner ring.

5. The upper pressure head of the detection bracket according to claim 4, characterized in that: A mounting hole (7) is provided on the outer side of the first regulating port (5).

6. The upper pressure head of the detection bracket according to claim 1, characterized in that: The upper end of the bracket plate (21) is connected to the bottom plate (1), and the lower end is a mounting ring (211), and the bearing assembly (23) is embedded in the mounting ring (211).

7. The upper pressure head of the detection bracket according to claim 6, characterized in that: The lower end of the mounting ring (211) is provided with a third adjustment port (8).

8. The upper pressure head of the detection bracket according to claim 1, characterized in that: The upper end surface of the bracket plate (21) is provided with three threaded holes (9) arranged at intervals.

9. The upper pressure head of the detection bracket according to claim 1, characterized in that: The center of the bottom plate (1) is provided with through holes (10) arranged at intervals.

10. The upper pressure head of the detection bracket according to claim 9, characterized in that: The through holes (10) are arranged at intervals on the circumference with the center of the bottom plate (1) as the center of the circle.

Images