A fixture for constant acceleration test of flat device with insulation webs

Abstract

This utility model discloses a fixture for constant acceleration testing of flat devices with insulating connecting ribs. The fixture is used to load flat devices with insulating connecting ribs. The flat device includes a device base and connecting ribs. The connecting ribs include several pins connected to the device base, a metal frame connected to all pins, and a ceramic frame connected to the metal frame. The fixture includes a base and a cover plate. The base can be detachably connected to a constant acceleration testing device. The base has a loading groove for loading the device base and a group of limiting grooves around the loading groove for limiting the connecting ribs. One end of the cover plate is rotatably connected to the base, and the other end is locked to the base via a locking mechanism. The cover plate can cover the base and cover the loading groove and the limiting groove group. The device only needs to be placed in the loading groove and the limiting groove group according to its corresponding structure. After the cover plate is closed and locked, the device's stability is improved after connection to the equipment. It requires no tape reinforcement, provides secure limiting, and protects the product, meeting product completion requirements.

Description

Technical Field

[0001] This utility model belongs to the field of reliability testing technology for electronic devices, specifically relating to a fixture for constant acceleration testing of flat devices with insulating connecting ribs. Background Technology

[0002] Constant acceleration testing is an effective method for determining the adhesion of microelectronic device packages, internal metallization and lead systems, chips or substrates, and the mechanical strength limits of other components. Flat devices with insulating ribs have complex structures and are often left uncut before testing, making it challenging to protect the insulating ribs, such as leads and ceramic bezels, from damage.

[0003] Magnetic attachment is a commonly used method for constant acceleration testing of flat devices with insulating ribs. It typically uses a general-purpose (16-face / 8-face, etc.) turntable fixture with a magnetic material attached to its surface, allowing the device to be directly magnetically attached to the inner wall. However, due to the large size of flat devices with insulating ribs and the need to retain the outer frame structure during testing, coupled with the high magnitude requirements of the tests, the fixation strength of direct magnetic adsorption is insufficient to achieve ideal fixation. The device is prone to displacement and shaking during the test, compromising the integrity and accuracy of the results. To enhance stability, traditional methods use adhesive tape for auxiliary fixation. However, this requires precise positioning of the tape on complex structures such as the outer frame and leads, making the process cumbersome and significantly increasing preparation time and labor costs. Furthermore, the contact between the tape and the device surface (especially cover plates and ceramic frames covered with low-adhesion films) can easily cause film damage, frame scratches, or adhesive residue during disassembly, significantly increasing the risk of cosmetic damage and failing to meet the requirements for protecting product integrity during testing. Utility Model Content

[0004] To address the technical problems existing in the prior art, this utility model provides a fixture for constant acceleration testing of flat devices with insulating connecting ribs.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A fixture for constant acceleration testing of a flat device with insulating connecting ribs is provided for loading the flat device with insulating connecting ribs. The flat device with insulating connecting ribs includes a device base and connecting ribs. The connecting ribs include a plurality of pins connected to the device base, a metal frame connected to all the pins, and a ceramic frame connected to the metal frame.

[0007] The base is detachably connected to the constant acceleration test equipment. The base is provided with a loading groove for loading the device base and a group of limiting grooves around the loading groove for limiting the connecting rib.

[0008] The cover plate is rotatably connected to the base at one end, and locked to the base at the other end by a locking mechanism. The cover plate can cover the base and cover the loading slot and the limiting slot group.

[0009] Furthermore, the loading groove is a stepped structure adapted to the shape of the device base. The loading groove includes a first limiting groove recessed inward from the surface of the base and a through cavity coaxially arranged with the first limiting groove and penetrating the base. The first limiting groove is used to restrict the lateral movement of the device base, and the through cavity enables the corresponding end face of the device base to be detachably connected to the constant acceleration test equipment.

[0010] Furthermore, the first limiting groove has two oppositely arranged recesses on its groove sidewall. The recesses are formed by horizontally recessing from the groove sidewall of the first limiting groove toward the outside of the base to avoid the lead wire.

[0011] The corners on both sides of the concave portion, all corners of the first limiting groove, and all corners of the through cavity are provided with a rounded concave notch.

[0012] Furthermore, the limiting groove group includes two second limiting grooves and two third limiting grooves disposed on the top surface of the base. The plurality of second limiting grooves and the plurality of third limiting grooves are arranged around the loading groove in an adjacent and staggered manner. Both the second limiting grooves and the third limiting grooves are used to limit the ceramic frame.

[0013] Furthermore, the base is provided with several embedding cavities, and each embedding cavity is provided with a magnetic block that can be attracted to the constant acceleration test equipment.

[0014] Furthermore, the base is a variable cross-section structure with a cross-sectional area that gradually decreases from the top to the bottom.

[0015] Furthermore, the top side of the base is provided with an extension that protrudes horizontally in a direction away from the loading groove. The top of the extension is provided with two spaced-apart shaft connecting lugs. A rotating shaft is inserted in the shaft connecting lugs and is rotatably connected to the cover plate through the rotating shaft.

[0016] Furthermore, the two locking mechanisms are arranged at intervals. Each locking mechanism includes a first locking screw hole opened on the cover plate, a second locking screw hole corresponding to the position of the first locking screw hole and provided on the base, and a locking bolt screwed to the first locking screw hole and the second locking screw hole.

[0017] Furthermore, the end face of the cover plate near the base is provided with an inner groove, which is recessed towards the top of the cover plate. A pressing part is provided in the inner groove, and when the cover plate is closed, the pressing part presses against the device base.

[0018] Furthermore, the end face of the cover plate near the base is provided with a number of spaced reinforcing protrusions. The reinforcing protrusions extend from the bottom of the cover plate toward the base. When the cover plate is closed, the reinforcing protrusions can be detachably connected to the metal frame.

[0019] In summary, the beneficial effects of this utility model are as follows: First, the base is strongly fixed to the turntable. Magnetic blocks are embedded at the corners of the base, forming a "four-corner fixation" with the magnetic layer on the inner ring of the turntable clamp. The magnetic force is evenly applied to the outer support points of the base, counteracting the centrifugal force. The variable cross-section design, with the cross-sectional area gradually decreasing from the top to the bottom of the base, keeps the center of gravity close to the turntable connection surface, reducing the risk of base flipping or warping. Simultaneously, the through cavity exposes the metal cover plate of the device, further strengthening the magnetic connection and ensuring no loosening between the base and the turntable. Second, multi-directional device restraint: A three-dimensional constraint is formed by the loading groove (first restraining groove + through cavity) + restraining groove group (second restraining groove + third restraining groove). The first restraining groove restricts the lateral movement of the device base. After the cover plate is closed, the through cavity, in conjunction with the first restraining groove, restricts the longitudinal movement of the device. The second and third restraining grooves are arranged alternately around the loading groove, embedding the ceramic frame into the recessed groove, blocking horizontal displacement and circumferential rotation of the device, providing multi-directional locking and preventing displacement and shaking of the device under strong centrifugal force. III. Rigid Locking of Cover Plate and Base: The locking mechanism provides a durable locking force, and the self-locking threads prevent vibration-induced loosening. The spaced arrangement ensures even force distribution on the cover plate, preventing localized warping. Combined with the mechanical engagement of the cover plate's reinforcing protrusions through the perforations in the metal frame, a dual fixation of bolt locking and interlocking positioning is achieved, preventing relative displacement between the cover plate and the device. IV. Efficient Disassembly and Maintenance: No adhesive tape is used throughout the process. Disassembly simply requires unscrewing the locking bolts and lifting the cover plate to remove the device, eliminating the need for adhesive residue cleaning or film peeling. The base and turntable are magnetically connected, allowing for tool-free assembly and disassembly. The same base can be adapted to any inner ring section of the turntable, eliminating the need for custom-made connecting parts and significantly reducing preparation and completion time during batch testing. Attached Figure Description

[0020] Figure 1 This is a frontal three-dimensional structural diagram of the flat device with insulating connecting ribs that is clamped by the fixture in this utility model.

[0021] Figure 2 yes Figure 1 Schematic diagram of the reverse three-dimensional structure of a flat device with insulating connecting ribs

[0022] Figure 3This is a schematic diagram of the structure of a fixture for constant acceleration testing of a flat device with insulating connecting ribs provided in this utility model.

[0023] Figure 4 yes Figure 3 Side view.

[0024] Figure 5 yes Figure 3 Top view.

[0025] Figure 6 yes Figure 5 Sectional view along the AA direction.

[0026] Figure 7 This is a three-dimensional structural diagram of the base in this utility model.

[0027] Figure 8 yes Figure 7 A schematic diagram of the structure in which the components are mounted on the base.

[0028] Figure 9 This is a schematic diagram of the structure of the bottom surface of the cover plate in this utility model.

[0029] In the figure, 100-flat device with insulating connecting ribs, 110-device base, 111-device substrate, 112-metal cover plate, 113-metal part, 120-connecting ribs, 121-pins, 122-metal frame, 122A-through hole, 123-ceramic frame, 200-base, 210-loading groove, 211-first limiting groove, 211A-horizontal step surface, 211B-recessed part, 212-through cavity, 220-second limiting groove, 230-third limiting groove, 240-rounded corner recessed notch, 250-magnetic block, 260-extension, 261-shaft support lug, 270-second locking screw hole, 300-cover plate, 310-first locking screw hole, 320-inner groove, 321-pressing part, 330-reinforcing protrusion, 340-mounting notch. Detailed Implementation

[0030] The present invention will be further illustrated below with reference to specific figures.

[0031] Please see Figure 1 and Figure 2The flat device 100 with insulating connecting ribs used for evaluation tests includes a device base 110 and connecting ribs 120. The connecting ribs 120 include a plurality of pins 121 connected to the device base 110, a metal frame 122 connected to all the pins 121, and a ceramic frame 123 connected to the upper end of the metal frame 122. Each corner of the metal frame 122 is provided with a through hole 122A penetrating the metal frame 122. The device base 110 includes a device body 111, a metal cover plate 112 connected to the end face of the device body 111, and metal portions 113 distributed on the end face of the device body 111 away from the end face of the metal cover plate 112.

[0032] Please see Figures 3-6 This utility model provides a fixture for constant acceleration testing of flat devices with insulating connecting ribs, used to load flat devices 100 with insulating connecting ribs. The fixture includes a base 200 and a cover plate 300. The base 200 can be detachably connected to the constant acceleration testing equipment, that is, the base 200 can be connected to the turntable fixture in the constant acceleration testing equipment. The turntable fixture uses a metal ring cylinder (or metal disk) as its basic carrier, and its core design is concentrated in the inner ring part. The inner ring wall is not a traditional smooth curved surface, but is processed into multiple planar cross-sections of completely uniform size. These planar cross-sections are detachably connected to the base 200. When viewed from above along the axis of the turntable fixture, these cross-sections are connected end to end and symmetrically distributed, together forming a regular polygonal inner ring outline. The base 200 is provided with a loading groove 210 for loading the device base 110 and a group of limiting grooves around the loading groove 210 for limiting the connecting ribs 120. One end of the cover plate 300 is rotatably connected to the base 200, and the other end is locked to the base 200 via a locking mechanism. The cover plate 300 can close over the base 200 and cover the loading slot 210 and the limiting slot group. The device base 110 and the connecting rib 120 have corresponding positions on the base 200 for limiting. After loading is completed, the rotating cover plate 300 closes over the base 200 to cover and protect the device, and then connects to the turntable fixture. The turntable fixture is then started to perform a constant acceleration test. The fixture adopts a standardized slot positioning and a quick-locking design with a cover plate 300. Devices simply need to be placed into the loading slot 210 and limiting slot group according to their corresponding structure, and then the cover plate 300 is rotated to secure them via the locking mechanism. The new fixture has no adhesive tape contact throughout the process; the contact between the device and the fixture is only the physical support of the slot and the flexible / rigid coverage of the cover plate 300 (no adhesive contact). Disassembly is simple: just open the locking mechanism and lift the cover plate 300 to remove the device, completely avoiding damage from the tape application and removal process, meeting the requirements for product integrity protection in testing. The fixture uses the physical limiting structure of the base 200, loading slot 210, and limiting slot group to fix the device base 110 and connecting ribs 120 (pins 121, metal frame 122, ceramic frame 123) into their corresponding matching slots. The cover plate 300 then closes and locks, forming a fully enclosed rigid fixation, reducing the risk of device displacement and shaking during testing.

[0033] Please see Figure 7 The base 200 has several through-hole recesses distributed at various corners. Each recess contains a magnetic block 250 that can attract the constant acceleration test equipment. Each inner ring facet of the turntable clamp is completely covered with a magnetic layer, ensuring stable magnetic attraction on each facet. This individual facet with the magnetic layer is the dedicated area for connecting the base 200 to the outer base 200. The core of the constant acceleration test is the centrifugal force generated by the high-speed rotation of the turntable. Due to this centrifugal force, the base 200 and its internal components tend to "detach from the turntable." Placing the magnetic blocks 250 at the corners of the base 200 (rather than the center or a single area) allows the magnetic force to be evenly distributed across the outer support points of the base 200, effectively creating a stable "four-corner fixed" structure that more efficiently counteracts the centrifugal force pulling on the base 200. Compared to the design where the magnetic blocks 250 are concentrated in the center, the distribution at the edges and corners can significantly reduce the risk of tilting or warping of the base 200 due to uneven force, ensuring that the base 200 is always in close contact with the cut surface of the turntable fixture during the test, avoiding the device from shaking in the loading slot 210 due to the loosening of the base 200, and ensuring the accuracy of the test results.

[0034] Please continue reading. Figure 4 The base 200 features a variable cross-sectional area that gradually decreases from top to bottom. This design, with its "top-heavy, bottom-light" center of gravity, keeps the core center of gravity of the base 200 close to the connecting surface of the turntable fixture (the point where the bottom meets the inner circumferential surface of the turntable). This effectively brings the center of gravity of the base 200 closer to the fixed end. This center of gravity design significantly reduces the risk of the base 200 flipping or shifting around the connecting surface due to centrifugal force. Combined with the magnetic attraction between the bottom of the base 200 and the turntable's magnetic layer, this further enhances the connection stability between the base 200 and the turntable fixture, preventing the base 200 from detaching from the turntable due to excessive centrifugal force during the experiment, thus ensuring the integrity of the experiment.

[0035] Please continue reading. Figure 7The base 200 has a horizontally protruding extension 260 on one side of its top end, extending away from the loading groove 210. The top end of the extension 260 has two spaced-apart shaft-connecting lugs 261. The cover plate 300 has mounting notches 340 corresponding to the positions of the shaft-connecting lugs 261 for mounting the lugs 261. A rotating shaft passes through the shaft-connecting lugs 261, rotatably connecting the cover plate 300 to the base 200. The shaft-connected cover plate 300 allows for convenient and quick opening and closing. The rotatable connection structure between the cover plate 300 and the base 200 can better withstand the acceleration force and other external forces generated during the test, preventing loosening or detachment between the cover plate 300 and the base 200, thus ensuring the smooth conduct of the test and the safety of the equipment.

[0036] Please see Figure 6 and Figure 8 The loading groove 210 is a stepped structure adapted to the shape of the device base 110. The loading groove 210 includes a first limiting groove 211 recessed inward from the surface of the base 200 and a through cavity 212 coaxially arranged with the first limiting groove 211 and penetrating the base 200. When loading the device, the front side of the device (see [reference]) Figure 1 Oriented towards the loading groove 210, the device base 110 is loaded into the loading groove 210. The bottom surface of the device base 111 is supported by the horizontal step surface 211A, so that the first limiting groove 211 can restrict the lateral movement of the device base 110 (i.e., the device base 111). After the device base 110 is loaded into the loading groove 210, the metal cover plate 112 of the device is adapted to be accommodated in the through cavity 212. After this assembly, it can not only further restrict the position of the device base 110, but also, after the device base 110 is installed, the metal cover plate 112 is adapted to be accommodated in the through cavity 212. The cover plate 300 will form support and obstruction from below / axially of the device base 111. On the one hand, it can restrict the displacement of the device in the direction perpendicular to the step surface (longitudinal) (such as upward removal from the loading groove 210), and on the other hand, it further constrains the movement of the device in the direction of test acceleration (axial), forming an all-round "lateral + longitudinal" limitation to ensure that the device always remains in the preset test position under strong centrifugal force. Furthermore, the through cavity 212 can expose the metal cover plate 112, allowing the metal cover plate 112 to be magnetically attached to the magnetic layer of the turntable clamp. The magnetic connection strengthens the overall fixation of the base 200 and the turntable, indirectly reducing the risk of displacement of the base 200 itself.

[0037] The first limiting groove 211 has two opposing recesses 211B on its sidewall. The recesses 211B are horizontally recessed from the sidewall of the first limiting groove 211 towards the outside of the base 200 to avoid the pin 121. A rounded notch 240 is provided at the corners of both sides of the recesses 211B, all corners of the first limiting groove 211, and all corners of the through cavity 212. The rounded corners of the recesses 211B meet the dual requirements of pin avoidance and stress optimization. The rounded notch 240 essentially transforms a sharp right angle into a smooth arc transition surface. The rounded corner disperses the stress originally concentrated at the right angle of the groove wall to the entire arc area, reducing the local maximum stress value and significantly reducing the risk of cracking or breakage of the base 200 due to excessive stress. This ensures that the base 200 structure does not fail during testing and also facilitates the placement and removal of test devices.

[0038] The limiting groove group includes two second limiting grooves 220 and two third limiting grooves 230 located on the top surface of the base 200. Multiple second limiting grooves 220 and multiple third limiting grooves 230 surround the loading groove 210 and are arranged in an adjacent and staggered manner. Both the second limiting grooves 220 and the third limiting grooves 230 are used to limit the ceramic frame 123. When the device is inverted and placed in the loading groove 210, the ceramic frame 123 is precisely accommodated within the sunken second limiting grooves 220 and third limiting grooves 230, thus limiting the connecting rib 120. The arrangement of the two second limiting grooves 220 and the two third limiting grooves 230 around the loading groove 210 is equivalent to forming a ring-shaped constraint frame around the outer periphery of the device (ceramic frame 123). Different sides of the ceramic frame 123 are respectively embedded in the corresponding second limiting groove 220 or third limiting groove 230, and the groove walls directly prevent horizontal displacement of the device. One side of the second limiting groove 220 extends through the outside of the base 200. After the cover plate 300 is closed, there is a large gap between the through position and the cover plate 300, which makes it easy to open the cover plate 300.

[0039] Two locking mechanisms are arranged at intervals. Each locking mechanism includes a first locking screw hole 310 on the cover plate 300, a second locking screw hole 270 corresponding to the first locking screw hole 310 and located on the base 200, and a locking bolt screwed into the first locking screw hole 310 and the second locking screw hole 270. The locking mechanism, through the threaded connection between the bolt and the screw hole, provides a long-lasting locking force far exceeding that of snap-fit ​​or magnetic attraction methods, completely preventing the cover plate 300 from separating from the base 200, achieving a rigid lock between the cover plate 300 and the base 200, eliminating loosening after assembly, and making the locking or loosening process convenient and quick.

[0040] Please see Figure 9The end face of the cover plate 300 near the base 200 has an inner groove 320, which is recessed towards the top of the cover plate 300. A holding part 321 is provided in the inner groove 320. When the cover plate 300 is closed, the holding part 321 presses against the metal part 113 of the device base 110. The pressure of the holding part 321 can firmly press the device into the loading groove 210, avoiding positional displacement caused by axial loosening. For example, if the device floats slightly during the test, it may affect the adhesion with the magnetic layer below (such as in the case of magnetic fixation). After the holding part 321 applies pressure, the ceramic frame 123 of the device will fit more tightly against the side wall of the second limiting groove 220 or the third limiting groove 230, reducing the space for lateral movement. With the lateral blocking of the limiting groove, a closed-loop fixation of axial pressing + lateral limiting is formed.

[0041] Please continue reading. Figure 9 The end face of the cover plate 300 near the base 200 is provided with several spaced reinforcing protrusions 330. These protrusions 330 extend from the bottom of the cover plate 300 towards the base 200. When the cover plate 300 is closed, the reinforcing protrusions 330 can be inserted one-to-one into the corresponding through holes 122A in the metal frame 122. After the reinforcing protrusions 330 are inserted into the through holes 122A, they act as "locating pins" between the two, directly preventing lateral movement. This interlocking structure also indirectly strengthens the axial (perpendicular to the cover plate 300) connection strength and assists in axial fixation, enhancing overall rigidity.

[0042] This fixture features a base 200 that is firmly fixed to the turntable. Magnetic blocks 250 are embedded at the corners of the base 200, forming a "four-corner fixation" with the magnetic layer on the inner ring of the turntable fixture. The magnetic force is evenly applied to the outer support points of the base 200, counteracting the centrifugal force. The variable cross-section design of the base 200, with its gradually decreasing cross-sectional area from the top to the bottom, keeps the center of gravity close to the turntable connection surface, reducing the risk of the base 200 flipping or warping. At the same time, the through cavity 212 exposes the metal cover plate 112 of the device, further strengthening the magnetic connection and ensuring that the base 200 and the turntable remain secure. II. Multi-directional device restraint: A three-dimensional constraint is formed by the loading groove 210 (first restraining groove 211 + through cavity 212) + restraining groove group (second restraining groove 220 + third restraining groove 230). The first restraining groove 211 restricts the lateral movement of the device base 111. After the cover plate 300 is closed, it can restrict the longitudinal movement of the device in conjunction with the through cavity 212. The second restraining groove 220 and the third restraining groove 230 are arranged alternately around the loading groove 210, embedding the ceramic frame 123 into the sinking groove, blocking the horizontal offset and circumferential rotation of the device, locking in multiple directions, and avoiding the displacement and shaking of the device under strong centrifugal force. III. Rigid Locking of Cover Plate 300 and Base 200: The locking mechanism provides a durable locking force, the self-locking nature of the threads prevents loosening due to vibration, and the spaced arrangement ensures even force distribution on the cover plate 300, preventing localized warping. Combined with the mechanical engagement of the reinforcing protrusions 330 on the cover plate 300 through the perforations 122A in the metal frame 122, a dual fixation of bolt locking and interlocking positioning is formed, preventing relative displacement between the cover plate 300 and the device. IV. Efficient Disassembly and Maintenance: No adhesive tape is used throughout the process. Disassembly only requires unscrewing the locking bolts and lifting the cover plate 300 to remove the device, eliminating the need for adhesive residue cleaning or film peeling. The base 200 and turntable are magnetically connected, allowing for tool-free installation and removal. Furthermore, the same base 200 can be adapted to any inner ring section of the turntable, eliminating the need for customized connecting parts and significantly reducing preparation and completion time during batch testing.

[0043] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structure made using the contents of this utility model specification and drawings, whether directly or indirectly applied to other related technical fields, shall also be within the patent protection scope of this utility model.

Claims

1. A fixture for constant acceleration testing of a flat device with insulating connecting ribs, characterized in that, For mounting a flat device with insulating connecting ribs, the flat device with insulating connecting ribs includes a device base and connecting ribs, the connecting ribs including a plurality of pins connected to the device base, a metal frame connected to all the pins, and a ceramic frame connected to the metal frame, including: The base is detachably connected to the constant acceleration test equipment. The base is provided with a loading groove for loading the device base and a group of limiting grooves around the loading groove for limiting the connecting rib. The cover plate is rotatably connected to the base at one end, and locked to the base at the other end by a locking mechanism. The cover plate can cover the base and cover the loading slot and the limiting slot group.

2. The clip for a constant acceleration test of a flat device with an insulation rib according to Claim 1, wherein: The loading groove is a stepped structure adapted to the shape of the device base. The loading groove includes a first limiting groove recessed inward from the surface of the base and a through cavity coaxially arranged with the first limiting groove and penetrating the base. The first limiting groove is used to restrict the lateral movement of the device base, and the through cavity enables the corresponding end face of the device base to be detachably connected to the constant acceleration test equipment.

3. The clip for a constant acceleration test of a flat part with an insulation rib according to Claim 2, characterized in that: The first limiting groove has two oppositely arranged recesses on its groove sidewall. The recesses are formed by horizontally recessing from the groove sidewall of the first limiting groove toward the outside of the base to avoid the pin. The corners on both sides of the concave portion, all corners of the first limiting groove, and all corners of the through cavity are provided with a rounded concave notch.

4. The clip for a constant acceleration test of a flat part with an insulation rib according to Claim 1, characterized in that: The limiting groove group includes two second limiting grooves and two third limiting grooves provided on the top surface of the base. Multiple second limiting grooves and multiple third limiting grooves are arranged around the loading groove in an adjacent and staggered manner. Both the second limiting grooves and the third limiting grooves are used to limit the ceramic frame.

5. The clip for a constant acceleration test of a flat part with an insulation rib according to Claim 1, characterized in that: The base is provided with several embedding cavities, and each embedding cavity is provided with a magnetic block that can be attracted to the constant acceleration test equipment.

6. The clip for a constant acceleration test of a flat part with an insulation rib according to Claim 1, characterized by: The base is a variable cross-section structure with a cross-sectional area that gradually decreases from the top to the bottom.

7. The clip for a constant acceleration test of a flat part with an insulation rib according to Claim 1, characterized in that: The base has a horizontally protruding extension on one side of its top end, which extends away from the loading groove. The top end of the extension has two spaced-apart shaft connecting lugs, and a rotating shaft passes through the shaft connecting lugs, which is rotatably connected to the cover plate.

8. The clip for a constant acceleration test of a flat part with an insulation rib according to Claim 1, characterized by: The two locking mechanisms are arranged at intervals. Each locking mechanism includes a first locking screw hole opened on the cover plate, a second locking screw hole corresponding to the position of the first locking screw hole and provided on the base, and a locking bolt screwed to the first locking screw hole and the second locking screw hole.

9. The clip for a constant acceleration test of a flat part with an insulation rib according to any one of claims 1 to 8, characterized by: The end face of the cover plate near the base has an inner groove, which is recessed towards the top of the cover plate. A pressing part is provided in the inner groove, and when the cover plate is closed, the pressing part presses against the device base.

10. The clip for a constant acceleration test of a flat part with an insulation rib according to Claim 9, wherein: The end face of the cover plate near the base is provided with a number of spaced reinforcing protrusions. The reinforcing protrusions extend from the bottom of the cover plate toward the base. When the cover plate is closed, the reinforcing protrusions can be detachably connected to the metal frame.

Images