Part rigidity test fixture

Abstract

The application provides a part rigidity test tool, which comprises a frame, a transmission cylinder and a test frame. The transmission cylinder is fixed to the frame, and the test frame comprises a base frame, a first adjusting block, a second adjusting block, a first supporting rod, a second supporting rod and a sensor fixing assembly. The base frame comprises an adjusting column, and the base frame is fixed to the transmission cylinder. The first adjusting block is adjustably connected to the adjusting column along the axial direction of the adjusting column. The first supporting rod is respectively arranged in the first adjusting block and the second adjusting block, and the second adjusting block is adjustable relative to the first adjusting block along the axial direction of the first supporting rod. The second supporting rod is respectively arranged in the second adjusting block and the sensor fixing assembly, and the sensor fixing assembly is adjustable relative to the second adjusting block along the axial direction of the second supporting rod. The axial direction of the adjusting column and the axial direction of the second supporting rod are both perpendicular to the axial direction of the first supporting rod. In this way, the universality of the part rigidity test tool is improved.

Description

Technical Field

[0001] This application relates to the field of fixtures, and more particularly to a tooling for testing the stiffness of parts. Background Technology

[0002] In the industrial manufacturing sector, component stiffness is a key indicator related to product performance and safety. Stiffness testing requires specialized tooling to clamp, load, and collect data from the component under test. However, existing tooling structures are typically customized for specific component models, lacking effective and rapid adaptability to components of different sizes and shapes. This results in poor tooling versatility, long changeover times, and increased costs. Furthermore, the lack of necessary fine-tuning freedom during clamping leads to a general problem of insufficient adjustment freedom in tooling.

[0003] Therefore, it is necessary to provide an improved part stiffness testing fixture to solve some or all of the above problems. Utility Model Content

[0004] This application provides a highly versatile tooling for testing the stiffness of parts.

[0005] This application provides a component stiffness testing fixture, including:

[0006] frame;

[0007] A transmission cylinder, which is fixed to the frame;

[0008] The test frame includes a base frame, a first adjusting block, a second adjusting block, a first support rod, a second support rod, and a sensor fixing assembly; the base frame includes an adjusting column and is fixed to the transmission cylinder, and the first adjusting block is adjustablely connected to the adjusting column along the axial direction of the adjusting column;

[0009] The first support rod is respectively passed through the first adjusting block and the second adjusting block, and the second adjusting block can be adjusted relative to the first adjusting block along the axial direction of the first support rod; the second support rod is respectively passed through the second adjusting block and the sensor fixing assembly, and the sensor fixing assembly can be adjusted relative to the second adjusting block along the axial direction of the second support rod.

[0010] The axial direction of the adjusting column and the axial direction of the second support rod are both perpendicular to the axial direction of the first support rod.

[0011] Furthermore, the sensor fixing assembly includes a sliding portion and a first end and a second end disposed opposite to each other, the sliding portion extending from the first end to the second end, the sliding portion being used to mount the sensor.

[0012] Furthermore, the sensor fixing assembly also includes a support plate, and the sliding part includes a first folding plate and a second folding plate; the first folding plate is fixed between the second folding plate and the support plate, the second folding plate is bent from the side of the first folding plate away from the support plate, and the second folding plate is at least partially engaged with the sensor.

[0013] Furthermore, the sensor fixing assembly also includes a stop member and a mounting block. The stop member is movably inserted through the support plate to press against the sensor. The mounting block is fixed to the support plate and sleeved on the second support rod.

[0014] Furthermore, the first adjusting block and / or the second adjusting block includes a first through hole, a second through hole, and a locking hole. The axis of the first through hole and the axis of the second through hole are perpendicular to each other, and the locking holes are respectively connected to the first through hole and the second through hole.

[0015] Furthermore, the base frame includes a base and a platform, the base is fixed to the transmission cylinder, the platform is adjustablely connected to the base, and the adjusting column is fixed to the platform.

[0016] Furthermore, the base includes a C-shaped component and an adjustment platform. The C-shaped component is engaged with the transmission cylinder, and the end of the C-shaped component is fixed to the adjustment platform. The adjustment platform includes a plurality of adjustment holes arranged in a matrix, and the base cooperates with some of the adjustment holes.

[0017] Furthermore, the frame includes a frame body and an adjustment component. One end of the adjustment component is fixed to the frame body, and the other end is fixed to the transmission cylinder. The adjustment component can drive the transmission cylinder to rotate and / or swing for adjustment.

[0018] Furthermore, the adjustment assembly includes a base plate, a first adjustment member, and a second adjustment member. The base plate is fixed to the frame body, the first adjustment member is rotatably connected to the base plate, the second adjustment member is rotatably connected to the first adjustment member, the transmission cylinder is fixed to the second adjustment member, and the rotation axis of the first adjustment member is perpendicular to the rotation axis of the second adjustment member.

[0019] Furthermore, the first adjusting member includes a first rotating plate, a second rotating plate, and a first arc-shaped guide groove. The second rotating plate is vertically fixed to the first rotating plate, the first arc-shaped guide groove passes through the first rotating plate, and the first rotating plate is fixed to the substrate by fasteners, with the fasteners passing through the first arc-shaped guide groove.

[0020] The second adjusting component includes a third rotating plate, a fourth rotating plate, and a second arc-shaped guide groove. The third rotating plate is vertically fixed to the fourth rotating plate, and the second arc-shaped guide groove passes through the third rotating plate. The third rotating plate is fixed to the second rotating plate by fasteners, and the fasteners pass through the second arc-shaped guide groove. The fourth rotating plate is connected to the transmission cylinder.

[0021] Compared with the prior art, the part stiffness testing fixture of this application can be relatively adjusted through the first adjustment block, the second adjustment block and the sensor fixing assembly, which improves the overall adjustability of the part stiffness testing fixture, making the part stiffness testing fixture applicable to workpieces of different sizes, improving the versatility of the part stiffness testing fixture, and thus reducing its manufacturing cost.

[0022] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this specification. Attached Figure Description

[0023] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this specification and, together with the description, serve to explain the principles of this specification.

[0024] Figure 1 This is a perspective view of the part stiffness testing fixture of this application.

[0025] Figure 2 yes Figure 1 A 3D diagram of the testing framework.

[0026] Figure 3 yes Figure 2 A three-dimensional view of the central adjustment platform.

[0027] Figure 4 yes Figure 2 A three-dimensional view of the first adjustment block.

[0028] Figure 5 yes Figure 2 A stereoscopic view of the first adjustment block from another perspective.

[0029] Figure 6 yes Figure 2 A 3D view of the sensor mounting assembly.

[0030] Reference numerals: 1-Frame; 11-Frame body; 12-Adjustment component; 121-Base plate; 122-First adjusting component; 1221-First rotating plate; 1222-Second rotating plate; 1223-First arc-shaped guide groove; 123-Second adjusting component; 1231-Third rotating plate; 1232-Fourth rotating plate; 1233-Second arc-shaped guide groove; 2-Transmission cylinder; 21-Cylinder body; 22-Pressure column; 3-Test frame; 31-Base frame; 310-Adjustment column; 311-Base; 312-Stage. 313-C-shaped part; 314-Adjusting platform; 315-Adjusting hole; 32-First adjusting block; 321-First through hole; 322-Second through hole; 323-Locking hole; 33-Second adjusting block; 34-First support rod; 35-Second support rod; 36-Sensor fixing assembly; 361-Sliding part; 362-First end; 363-Second end; 364-Support plate; 365-First folding plate; 366-Second folding plate; 367-Abutting part; 368-Mounting block; 10-Sensor. Detailed Implementation

[0031] The technical solutions in the embodiments (or "implementations") of this application will be clearly and completely described herein with reference to the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0032] If the embodiments of this application contain terms relating to directional indications or positional relationships (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movements between components in a specific posture (as shown in the attached figures); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, the terms "first" and "second" used in the embodiments of this application are only for descriptive convenience and should not be construed as indicating or implying relative importance.

[0033] like Figure 1 and Figure 2 As shown, the part stiffness testing fixture of this application includes a frame 1, a transmission cylinder 2, and a test frame 3. The transmission cylinder 2 is fixed to the frame 1, and the test frame 3 is fixed to the transmission cylinder 2. It should be noted that the transmission cylinder 2 is preferably, but not limited to, a hydraulic cylinder, and the transmission cylinder 2 includes a cylinder body 21 and a pressure column 22. The pressure column 22 slides through the cylinder body 21, the bottom end of the cylinder body 21 is fixed to the frame 1, and the test frame 3 is fixed to the cylinder body 21.

[0034] The test frame 3 includes a base frame 31, a first adjusting block 32, a second adjusting block 33, a first support rod 34, a second support rod 35, and a sensor fixing assembly 36. The base frame 31 is fixed to the cylinder body 21 of the transmission cylinder 2. The base frame 31 includes an adjusting column 310, and the first adjusting block 32 is adjustablely connected to the adjusting column 310 along its axial direction. The first support rod 34 passes through both the first adjusting block 32 and the second adjusting block 33, and the second adjusting block 33 is adjustable relative to the first adjusting block 32 along the axial direction of the first support rod 34. The second support rod 35 passes through both the second adjusting block 33 and the sensor fixing assembly 36, and the sensor fixing assembly 36 is adjustable relative to the second adjusting block 33 along the axial direction of the second support rod 35. The axial directions of the adjusting column 310 and the second support rod 35 are both perpendicular to the axial direction of the first support rod 34.

[0035] With this configuration, the sensor fixing assembly 36 can be positioned relative to the first adjusting block 32 and the second adjusting block 33 via the first support rod 34 and the second support rod 35, thereby improving the overall adjustability of the part stiffness testing fixture of this application. This allows the part stiffness testing fixture to be applicable to workpieces of different sizes, improving the versatility of the part stiffness testing fixture and thus reducing its manufacturing cost.

[0036] In some embodiments, the frame 1 includes a frame body 11 and an adjustment assembly 12. One end of the adjustment assembly 12 is fixed to the frame body 11, and the other end is fixed to the transmission cylinder 2. The adjustment assembly 12 can drive the transmission cylinder 2 to rotate and / or swing. Specifically, the adjustment assembly 12 includes a base plate 121, a first adjustment member 122, and a second adjustment member 123. The base plate 121 is fixed to the frame body 11, the first adjustment member 122 is rotatably connected to the base plate 121, and the second adjustment member 123 is rotatably connected to the first adjustment member 122. The cylinder body 21 of the transmission cylinder 2 is fixed to the second adjustment member 123, and the rotation axis of the first adjustment member 122 is perpendicular to the rotation axis of the second adjustment member 123. This configuration improves the adjustability of the part stiffness testing fixture of this application, thereby improving the versatility of the part stiffness testing fixture.

[0037] The first adjusting member 122 includes a first rotating plate 1221, a second rotating plate 1222, and a first arc-shaped guide groove 1223. The second rotating plate 1222 is vertically fixed to the first rotating plate 1221, and the first arc-shaped guide groove 1223 passes through the first rotating plate 1221. The second adjusting member 123 is connected to the second rotating plate 1222. The first rotating plate 1221 is fixed to the base plate 121 by fasteners, and the fasteners pass through the first arc-shaped guide groove 1223. This arrangement reduces manufacturing costs. When the first rotating plate 1221 needs to be rotated to change its angle position, the fasteners can be loosened, and then the first rotating plate 1221 can be adjusted. The first arc-shaped guide groove 1223 includes two semi-circular grooves (not shown), and these two semi-circular grooves are located on opposite sides of the second rotating plate 1222.

[0038] In some other embodiments, the first rotating plate 1221 and the substrate 121 can also be connected by a guide rail and a guide groove. Specifically, the side of the first rotating plate 1221 facing the substrate 121 is provided with a guide rail (not shown), and the side of the substrate 121 facing the first rotating plate 1221 is provided with a guide groove (not shown), and the guide groove and the guide rail cooperate with each other. Admittedly, the side of the first rotating plate 1221 facing the substrate 121 may also be provided with a guide groove (not shown), and the side of the substrate 121 facing the first rotating plate 1221 may be provided with a guide rail; this is not a limitation herein. This arrangement improves the ease of adjusting the first adjusting member 122 relative to the substrate 121.

[0039] The second adjusting member 123 includes a third rotating plate 1231, a fourth rotating plate 1232, and a second arc-shaped guide groove 1233. The third rotating plate 1231 is vertically fixed to the fourth rotating plate 1232, and the second arc-shaped guide groove 1233 passes through the third rotating plate 1231. The third rotating plate 1231 is fixed to the second rotating plate 1222 by fasteners, and the fasteners pass through the second arc-shaped guide groove 1233, thus reducing manufacturing costs. The fourth rotating plate 1232 is fixedly connected to the cylinder body 21 of the transmission cylinder 2. When the second adjusting member 123 needs to be rotated to change its angle position, simply loosen the fasteners and then adjust the third rotating plate 1231. The second arc-shaped guide groove 1233 includes two semi-circular grooves (not shown), and these two semi-circular grooves are spaced apart and concentrically arranged.

[0040] In some other embodiments, the third rotating plate 1231 and the second rotating plate 1222 can also be connected by a guide rail and a guide groove. Specifically, the third rotating plate 1231 has a guide rail (not shown) on the side facing the second rotating plate 1222, and the second rotating plate 1222 has a guide groove (not shown) on the side facing the third rotating plate 1231, with the guide groove and guide rail cooperating with each other. Admittedly, the third rotating plate 1231 may also have a guide groove (not shown) on the side facing the second rotating plate 1222, and the second rotating plate 1222 may have a guide rail on the side facing the third rotating plate 1231; this is not a limitation herein. This arrangement improves the ease of adjustment of the second adjusting member 123 relative to the first adjusting member 122. The angle of adjustment of the second adjusting member 123 relative to the first adjusting member 122 is not less than 180 degrees and not more than 360 degrees, thereby improving the versatility of the part stiffness testing fixture.

[0041] In some embodiments, the base frame 31 includes a base 311 and a platform 312. The base 311 is fixed to the cylinder body 21 of the transmission cylinder 2, and the platform 312 is adjustablely connected to the base 311. An adjusting column 310 is fixed to the platform 312. Specifically, the base 311 and the adjusting column 310 are located on opposite sides of the platform 312. The base 311 includes a C-shaped member 313 and an adjusting platform 314. The C-shaped member 313 is engaged with the transmission cylinder 2, and the end of the C-shaped member 313 is fixed to the adjusting platform 314. Specifically, the opening of the C-shaped member 313 faces the adjusting platform 314, and the C-shaped member 313 and the adjusting platform 314 are arranged around the periphery of the cylinder body 21 to improve the stability of the base 311. Alternatively, the opening of the C-shaped member 313 can also face away from the adjusting platform 314 and be engaged with the cylinder body 21 to improve the ease of installation of the base 311. To improve the stability of the base 311 connected to the cylinder 21, two C-shaped parts 313 are provided at intervals.

[0042] Further integration Figure 3 As shown, the adjustment platform 314 includes a plurality of adjustment holes 315 arranged in a matrix, and the base 312 mates with some of the adjustment holes 315. Furthermore, the base 312 can mate with different adjustment holes 315 to adjust the position of the base 312 on the adjustment platform 314.

[0043] Further integration Figure 4 and Figure 5As shown, since the first adjusting block 32 and the second adjusting block 33 are components with approximately the same structure, the following detailed description of their structures will be based on the first adjusting block 32 as an example. Specifically, the first adjusting block 32 includes a first through hole 321, a second through hole 322, and a locking hole 323. The axis of the first through hole 321 is perpendicular to the axis of the second through hole 322. There are two locking holes 323, which are respectively connected to the first through hole 321 and the second through hole 322. The adjusting post 310 passes through the first through hole 321, and the first support rod 34 passes through the second through hole 322. Fasteners can be provided in the locking holes 323, and the ends of the fasteners abut against the adjusting post 310 and the first support rod 34 to lock the adjusting post 310 and the first support rod 34 to the first adjusting block 32. To improve the stability of the first support rod 34, there are two adjusting posts 310, and there are also two first adjusting blocks 32, which are respectively connected to the adjusting posts 310.

[0044] The fit between the second adjusting block 33 and the first support rod 34 and the second support rod 35 can be referenced from the fit between the first adjusting block 32 and the first support rod 34 and the adjusting column 310 described above, and will not be repeated here. To improve the relative stability between the adjusting column 310 and the first support rod 34 and the second support rod 35, the first adjusting block 32 and the second adjusting block 33 are machined parts, and the first adjusting block 32 and the second adjusting block 33 are arranged in a three-dimensional block shape. For ease of manufacturing, the cross-section of the adjusting column 310, the first support rod 34, and the second support rod 35 is circular. Admittedly, the cross-section of the adjusting column 310, the first support rod 34, and the second support rod 35 can also be rectangular, triangular, or other shapes, and this article does not impose any restrictions on this.

[0045] Further integration Figure 6 As shown, in some embodiments, the sensor fixing assembly 36 includes a sliding portion 361 and a first end 362 and a second end 363 disposed opposite to each other. The sliding portion 361 extends from the first end 362 to the second end 363 and is used to mount the sensor 10 so that the sensor 10 can be adjusted at the sliding portion 361. The sensor 10 can be a displacement sensor for detecting the deformation of the test piece when the pressure column 22 pulls or presses against it. Admittedly, depending on the testing requirements, the sensor 10 can also be other types of sensors.

[0046] The sensor fixing assembly 36 may further include a support plate 364, and the sliding part 361 includes a first folding plate 365 and a second folding plate 366. The first folding plate 365 is fixed between the second folding plate 366 and the support plate 364. The second folding plate 366 is bent from the side of the first folding plate 365 away from the support plate 364, and there is a space between the second folding plate 366 and the support plate 364 for engaging the sensor 10. Specifically, the sensor 10 is partially engaged in the space between the second folding plate 366 and the support plate 364. Correspondingly, the second folding plate 366 is at least partially engaged with the sensor 10, and the sensor 10 can slide and adjust along the second folding plate 366.

[0047] The sensor fixing assembly 36 may further include a stop member 367 and a mounting block 368. The stop member 367 is movably inserted through the support plate 364 to press the sensor 10 against it. The mounting block 368 is fixed to the support plate 364 and sleeved on the second support rod 35. Along the axial direction of the second support rod 35, the mounting block 368 can be moved and adjusted on the second support rod 35, thereby changing the position of the sensor fixing assembly 36.

[0048] It should be noted that the technical solutions or features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A tooling for testing the stiffness of a part, characterized in that, include: frame; A transmission cylinder, which is fixed to the frame; The test frame includes a base frame, a first adjusting block, a second adjusting block, a first support rod, a second support rod, and a sensor fixing assembly; the base frame includes an adjusting column and is fixed to the transmission cylinder, and the first adjusting block is adjustablely connected to the adjusting column along the axial direction of the adjusting column; The first support rod is respectively passed through the first adjusting block and the second adjusting block, and the second adjusting block can be adjusted relative to the first adjusting block along the axial direction of the first support rod; the second support rod is respectively passed through the second adjusting block and the sensor fixing assembly, and the sensor fixing assembly can be adjusted relative to the second adjusting block along the axial direction of the second support rod. The axial direction of the adjusting column and the axial direction of the second support rod are both perpendicular to the axial direction of the first support rod.

2. The part stiffness testing fixture according to claim 1, characterized in that, The sensor fixing assembly includes a sliding part and a first end and a second end disposed opposite to each other. The sliding part extends from the first end to the second end and is used to mount the sensor.

3. The part stiffness testing fixture according to claim 2, characterized in that, The sensor fixing assembly further includes a support plate, and the sliding part includes a first folding plate and a second folding plate; the first folding plate is fixed between the second folding plate and the support plate, the second folding plate is bent from the side of the first folding plate away from the support plate, and the second folding plate is at least partially engaged with the sensor.

4. The part stiffness testing fixture according to claim 3, characterized in that, The sensor fixing assembly further includes a stop and a mounting block. The stop is movably inserted through the support plate to press the sensor against it. The mounting block is fixed to the support plate and sleeved on the second support rod.

5. The part stiffness testing fixture according to claim 1, characterized in that, The first adjusting block and / or the second adjusting block includes a first through hole, a second through hole, and a locking hole. The axis of the first through hole and the axis of the second through hole are perpendicular to each other, and the locking holes are respectively connected to the first through hole and the second through hole.

6. The part stiffness testing fixture according to claim 1, characterized in that, The base frame includes a base and a platform. The base is fixed to the transmission cylinder, the platform is adjustablely connected to the base, and the adjusting column is fixed to the platform.

7. The part stiffness testing fixture according to claim 6, characterized in that, The base includes a C-shaped component and an adjustment platform. The C-shaped component is engaged with the transmission cylinder, and the end of the C-shaped component is fixed to the adjustment platform. The adjustment platform includes a plurality of adjustment holes arranged in a matrix, and the base cooperates with some of the adjustment holes.

8. The part stiffness testing fixture according to claim 1, characterized in that, The frame includes a frame body and an adjustment component. One end of the adjustment component is fixed to the frame body, and the other end is fixed to the transmission cylinder. The adjustment component can drive the transmission cylinder to rotate and / or swing for adjustment.

9. The part stiffness testing fixture according to claim 8, characterized in that, The adjustment assembly includes a base plate, a first adjustment member, and a second adjustment member. The base plate is fixed to the frame body. The first adjustment member is rotatably connected to the base plate. The second adjustment member is rotatably connected to the first adjustment member. The transmission cylinder is fixed to the second adjustment member. The rotation axis of the first adjustment member is perpendicular to the rotation axis of the second adjustment member.

10. The part stiffness testing fixture according to claim 9, characterized in that, The first adjusting member includes a first rotating plate, a second rotating plate, and a first arc-shaped guide groove. The second rotating plate is vertically fixed to the first rotating plate, the first arc-shaped guide groove passes through the first rotating plate, and the first rotating plate is fixed to the base plate by fasteners, with the fasteners passing through the first arc-shaped guide groove. The second adjusting component includes a third rotating plate, a fourth rotating plate, and a second arc-shaped guide groove. The third rotating plate is vertically fixed to the fourth rotating plate, and the second arc-shaped guide groove passes through the third rotating plate. The third rotating plate is fixed to the second rotating plate by fasteners, and the fasteners pass through the second arc-shaped guide groove. The fourth rotating plate is connected to the transmission cylinder.

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