Flexible tool for testing metallization tensile strength of HTCC ceramic shell

Abstract

The utility model belongs to the technical field of a metallization tensile strength test of a ceramic shell, and discloses a flexible tool for a metallization tensile strength test of an HTCC ceramic shell. The flexible tool for testing the metallization tensile strength of the HTCC ceramic shell comprises a frame assembly, the frame assembly comprises a frame body, guide grooves, buckling frames and guide sleeves, the guide grooves are formed in the front inner wall and the rear inner wall of the frame body, and the buckling frames are fixedly connected to the front side and the rear side of the frame body. According to the flexible tool for testing the metallization tensile strength of the HTCC ceramic shell, through cooperation of the clamping device and the guide device, bidirectional clamping can be conducted on the ceramic shell, increased treatment friction is conducted on the clamping face, it is ensured that the ceramic shell keeps stable in the clamping process, a manual driving device and an automatic driving device can be flexibly selected, and the working efficiency is improved. The clamping device is suitable for clamping products with different requirements, is suitable for detection under various conditions, and solves the problems in the background technology.

Description

Technical Field

[0001] This utility model relates to the technical field of testing the tensile strength of metallized ceramic shells, specifically a flexible tooling for testing the tensile strength of metallized HTCC ceramic shells. Background Technology

[0002] Ceramic shell metallization can be structurally divided into internal buried layers and surface metallization. Internal buried layers mainly serve functions such as electrical interconnection and shielding, while surface metallization mainly involves brazing various metal parts (such as CPGA pins, CSOP / CQFP / CFP pins, etc.), wire bonding, solder sealing, electrical interconnection, and grounding. The bonding strength between the surface metallization layer and the ceramic substrate is formed by the mutual diffusion of the metal paste printed on the ceramic surface and the ceramic substrate during co-firing. Insufficient bonding strength of the ceramic shell metallization often leads to problems such as pin loss and interconnection failure caused by air leakage of the sealing ring during sealing tests. Therefore, in the production of HTCC ceramic shells, it is very important to effectively monitor the quality of the surface metallization bonding strength.

[0003] Currently, tensile strength testing involves brazing nickel-plated metallized ceramic parts with metal components. Existing technologies typically employ manual clamping of the product using needle-nose pliers or vise pliers, securing a single pin with a copper wire, continuously adding weights and maintaining this position for a certain period until the pin breaks or falls off. This process is time-consuming and labor-intensive due to poor product fixation, thin copper wires making secure binding difficult, heavy weights, and a large number of pins. Furthermore, clamping can easily damage pads, solder joints, and cause the weights to sway in a circular motion, failing to accurately reflect the tensile strength of the metallized ceramic shell. Additionally, electrically driven clamping devices cannot be used during equipment adjustments or maintenance, affecting the testing speed. For some special ceramic shell materials, electrically driven clamping devices struggle to control the clamping force, potentially causing damage or affecting testing accuracy. Therefore, we have designed a flexible fixture for testing the tensile strength of HTCC ceramic shell metallized components. Utility Model Content

[0004] The purpose of this utility model is to provide a flexible fixture for testing the tensile strength of metallized HTCC ceramic shells. This flexible fixture has a simple structure, high flexibility, is easy to use, and has high testing efficiency. It can clamp and fix ceramic shells of different specifications and sizes to accurately test the tensile strength of the metallized layer of the ceramic shell. It can also flexibly switch between manual and automatic drive modes to adapt to different products and environments, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A flexible tooling for testing the tensile strength of metallized HTCC ceramic shells includes a frame assembly. The frame assembly includes a frame body, guide grooves, fastening frames, and guide sleeves. Guide grooves are provided on the front and rear inner walls of the frame body. Fastening frames are fixedly connected to both the front and rear sides of the frame body. A guide sleeve is fixedly connected to the side of the fastening frame away from the frame body. A clamping device is provided inside the frame body. There are two clamping devices distributed left and right. A guide device is provided on both the left and right sides of the frame body to drive the clamping devices. A manual drive device is also provided on both the left and right sides of the frame assembly to drive the guide device to rotate. An automatic drive device is provided outside the manual drive device to drive the manual drive device to rotate.

[0006] Through the above technical solution, this application can use a manual drive device and an automatic drive device to manually or electrically control the guide device to move the clamping device, thereby clamping and fixing the ceramic shell. The clamping length has a negative tolerance, which can effectively ensure that it will not get stuck during the push.

[0007] Preferably, the clamping device includes a clamping plate, friction marks, a threaded sleeve, a sliding head, and balls. The clamping plate is movably connected between the front and rear inner walls of the frame body. The clamping surface of the clamping plate is fixedly connected with friction marks. The side of the clamping plate away from the friction marks is fixedly connected with a threaded sleeve. Sliding heads are fixedly connected to both the front and rear sides of the clamping plate, and the sliding heads are slidably connected in the guide groove. Balls are movably connected to both the upper and lower sides of the sliding head, and the balls are in contact with the inner wall of the guide groove.

[0008] Through the above technical solution, the relative movement of the sliding head on the clamping plate in the guide groove can drive the clamping plate to clamp or release the product, avoid the clamping plate from shifting during the movement, and increase the friction of the clamping plate through friction marks. The ball bearings can reduce the friction between the sliding head and the guide groove, ensuring smooth sliding.

[0009] Preferably, the guiding device includes a threaded rod and a first pulley. The left and right inner walls of the frame body are movably connected with threaded rods. The end of the threaded rod near the threaded sleeve extends into the threaded sleeve, and the end of the threaded rod away from the threaded sleeve passes through the frame body and is fixedly connected to the first pulley.

[0010] Through the above technical solution, this application can drive the threaded rod to rotate by rotating the first pulley, that is, the threaded sleeve moves to drive the clamping plate to clamp.

[0011] Preferably, the manual drive device includes a rotating shaft, a handle, a second pulley, and a positioning groove. The rotating shaft is provided on the front side of the frame body and passes through the corresponding guide sleeve. The handle is fixedly connected to both ends of the rotating shaft. The second pulley is fixedly connected to the outer side of the rotating shaft. There are two second pulleys, and the second pulleys are movably connected to the corresponding first pulleys through belts. Positioning grooves are provided at both the left and right ends of the rotating shaft.

[0012] Through the above technical solution, the rotating handle drives the rotating shaft to rotate, and the first pulley and the second pulley are movably connected by a belt, so that the first pulley rotates when the rotating shaft rotates, thus achieving manual operation.

[0013] Preferably, the automatic drive device includes a drive motor, a sliding sleeve, a mounting groove, a snap-fit ​​connector, and a compression spring. The drive motor is located on the outer side of the frame body. The output end of the drive motor is fixedly connected to the sliding sleeve via a coupling, and the sliding sleeve is sleeved on the outer side of the rotating shaft. The inner wall of the sliding sleeve has a mounting groove, and a snap-fit ​​connector is located in the mounting groove. A compression spring is also located in the mounting groove, and the two ends of the compression spring are fixedly connected to the inner wall of the mounting groove and the snap-fit ​​connector, respectively. The shape of the snap-fit ​​connector is adapted to the shape of the positioning groove.

[0014] Through the above technical solution, this application compresses the snap-fit ​​connector into the mounting groove, and then the sliding sleeve moves on the outside of the rotating shaft until the mounting groove and the positioning groove are connected. At this time, the snap-fit ​​connector will be pushed into the positioning groove by the spring force of the compression spring, thereby completing the connection between the sliding sleeve and the rotating shaft. At this time, starting the drive motor will drive the rotating shaft to rotate, and then drive the first pulley to rotate to complete the automatic drive.

[0015] Preferably, the bottom of the frame body is provided with a positioning hole, the frame body is made of metal, and the surface is electroplated with a bright chromium layer with a thickness of 1.5-2.5um.

[0016] Through the above technical solution, the positioning hole of this application can be connected to the plate on the bottom of the tensile strength test fixture, so as to make the test data more accurate while ensuring the product is fixed. At the same time, the size and position of the positioning hole can be determined according to the requirements of the tensile gauge.

[0017] By adopting the aforementioned technical solution, the beneficial effects of this utility model are:

[0018] 1. This flexible fixture for testing the tensile strength of metallized HTCC ceramic shells can clamp the ceramic shell in both directions through the cooperation of a clamping device and a guiding device. The clamping surface is treated with increased friction to ensure the stability of the ceramic shell during clamping. It can flexibly select between manual and automatic drive devices to adapt to the clamping needs of different products and to conduct testing under various conditions, thus solving the problems mentioned in the background technology.

[0019] 2. This flexible fixture for testing the tensile strength of HTCC ceramic shell metallization is connected to an external tensile tester through a positioning hole. It ensures product stability while making the tensile strength test data more accurate. It also allows for quicker switching between manual and automatic drive modes, saving operation time and ensuring testing speed. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of this utility model;

[0022] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 This is a schematic diagram of the clamping device of this utility model.

[0024] In the diagram: 100, frame assembly; 110, frame body; 120, guide groove; 130, fastening frame; 140, guide sleeve; 150, positioning hole; 200, clamping device; 210, clamping plate; 220, friction mark; 230, threaded sleeve; 240, sliding head; 250, ball bearing; 300, guiding device; 310, threaded rod; 320, first pulley; 400, manual drive device; 410, rotating shaft; 420, handle; 430, second pulley; 440, positioning groove; 500, automatic drive device; 510, drive motor; 520, sliding sleeve; 530, mounting groove; 540, snap-fit ​​connector; 550, compression spring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-4This utility model provides a technical solution: a flexible tooling for testing the tensile strength of metallized HTCC ceramic shells, including a frame assembly 100. The frame assembly 100 includes a frame body 110, guide grooves 120, fastening frames 130, and guide sleeves 140. Guide grooves 120 are provided on the front and rear inner walls of the frame body 110. Fastening frames 130 are fixedly connected to both the front and rear sides of the frame body 110. Guide sleeves 140 are fixedly connected to the side of the fastening frames 130 away from the frame body 110. A clamping device 200 is provided inside the frame body 110. There are two clamping devices 200, which are distributed left and right. A guide device 300 is provided on both the left and right sides of the frame body 110 to drive the clamping device 200. A manual drive device 400 is also provided on both the left and right sides of the frame assembly 100 to drive the guide device 300 to rotate. An automatic drive device 500 is provided on the outside of the manual drive device 400 to drive the manual drive device 400 to rotate.

[0027] Through the above technical solution, this application can use the manual drive device 400 and the automatic drive device 500 to manually or electrically control the guide device 300 to move the clamping device 200, thereby clamping and fixing the ceramic shell. The clamping length has a negative tolerance, which can effectively ensure that it will not get stuck during the push.

[0028] The clamping device 200 includes a clamping plate 210, a friction mark 220, a threaded sleeve 230, a sliding head 240, and a ball bearing 250. The clamping plate 210 is movably connected between the front and rear inner walls of the frame body 110. The friction mark 220 is fixedly connected to the clamping surface of the clamping plate 210. The threaded sleeve 230 is fixedly connected to the side of the clamping plate 210 away from the friction mark 220. The sliding head 240 is fixedly connected to both the front and rear sides of the clamping plate 210, and the sliding head 240 is slidably connected in the guide groove 120. The ball bearing 250 is movably connected to both the upper and lower sides of the sliding head 240, and the ball bearing 250 is in contact with the inner wall of the guide groove 120.

[0029] Through the above technical solution, the sliding head 240 on the clamping plate 210 can move relative to the guide groove 120 to drive the clamping plate 210 to clamp or release the product, avoid the clamping plate 210 from shifting during the movement, and increase the friction of the clamping plate 210 through the friction marks 220, and reduce the friction between the sliding head 240 and the guide groove 120 through the ball bearings 250, ensuring smooth sliding.

[0030] The guiding device 300 includes a threaded rod 310 and a first pulley 320. The threaded rod 310 is movably connected to the left and right inner walls of the frame body 110. The end of the threaded rod 310 near the threaded sleeve 230 extends into the threaded sleeve 230, and the end of the threaded rod 310 away from the threaded sleeve 230 passes through the frame body 110 and is fixedly connected to the first pulley 320.

[0031] Through the above technical solution, this application can drive the threaded rod 310 to rotate by rotating the first pulley 320, that is, the threaded sleeve 230 moves to drive the clamping plate 210 to clamp.

[0032] The manual drive device 400 includes a rotating shaft 410, a handle 420, a second pulley 430, and a positioning groove 440. The rotating shaft 410 is provided on the front side of the frame body and passes through the corresponding guide sleeve 140. The handle 420 is fixedly connected to both ends of the rotating shaft 410. The second pulley 430 is fixedly connected to the outer side of the rotating shaft 410. There are two second pulleys 430, and the second pulleys 430 are movably connected to the corresponding first pulley 320 through a belt. Positioning grooves 440 are provided at both the left and right ends of the rotating shaft 410.

[0033] Through the above technical solution, the rotating handle 420 drives the rotating shaft 410 to rotate. The first pulley 320 and the second pulley 430 are movably connected by a belt, so that when the rotating shaft 410 rotates, it drives the first pulley 320 to rotate, thus achieving manual operation.

[0034] The automatic drive device 500 includes a drive motor 510, a sliding sleeve 520, a mounting groove 530, a snap connector 540, and a compression spring 550. The drive motor 510 is located on the outer side of the frame body 110. The output end of the drive motor 510 is fixedly connected to the sliding sleeve 520 through a coupling. The sliding sleeve 520 is sleeved on the outer side of the rotating shaft 410. The inner wall of the sliding sleeve 520 has a mounting groove 530. The snap connector 540 is located in the mounting groove 530. The compression spring 550 is also located in the mounting groove 530. The two ends of the compression spring 550 are fixedly connected to the inner wall of the mounting groove 530 and the snap connector 540, respectively. The shape of the snap connector 540 is adapted to the shape of the positioning groove 440.

[0035] Through the above technical solution, the snap-fit ​​connector 540 is compressed into the mounting groove 530, and then the sliding groove sleeve moves on the outside of the rotating shaft 410 until the mounting groove 530 is connected to the positioning groove 440. At this time, the snap-fit ​​connector 540 will be pushed into the positioning groove 440 by the elastic force of the compression spring 550, thereby completing the connection between the sliding sleeve 520 and the rotating shaft 410. At this time, starting the drive motor 510 will drive the rotating shaft 410 to rotate, thereby driving the first pulley 320 to rotate to complete the automatic drive.

[0036] The bottom of the frame body 110 is provided with positioning holes 150. The frame body 110 is made of metal and has a bright chromium layer electroplated on the surface with a thickness of 1.5-2.5um.

[0037] Through the above technical solution, the positioning hole 150 of this application can be set to connect the flexible tensile strength test fixture to the plate on the bottom of the tensile gauge, so as to make the test data more accurate while ensuring the product is fixed. At the same time, the size and position of the positioning hole 150 can be determined according to the requirements of the tensile gauge.

[0038] When the flexible fixture used for testing the tensile strength of metallized HTCC ceramic shells is in operation, rotating the handle 420 drives the rotating shaft 410 to rotate, which in turn drives the two second pulleys 430 to rotate. The second pulleys 430 drive the first pulley 320 to rotate via belts. The first pulley 320 drives the threaded rod 310 to rotate, which in turn drives the threaded sleeve 230 to move. That is, the two clamping plates 210 move relative to each other to clamp the ceramic shell. When it is necessary to switch to automatic drive, first squeeze the snap-fit ​​connector 540 to retract it into the mounting groove 530. At this time, the sliding sleeve 520 is sleeved on the outside of the rotating shaft 410. When the mounting groove 530 is connected to the positioning groove 440, the snap-fit ​​connector 540 is fixed in the positioning groove 440 by the elastic force of the compression spring 550. At this time, starting the drive motor 510 can drive the sliding sleeve 520 and the rotating shaft 410 to rotate automatically for clamping. Similarly, when switching to manual drive, simply push the snap-fit ​​connector 540 out of the positioning groove 440 and then move the sliding sleeve 520 to disengage from the rotating shaft 410.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flexible tooling for testing the tensile strength of metallized HTCC ceramic housings, comprising a frame assembly, characterized in that: The frame assembly includes a frame body, guide grooves, fastening frames, and guide sleeves. Guide grooves are provided on the front and rear inner walls of the frame body. Fastening frames are fixedly connected to both the front and rear sides of the frame body. A guide sleeve is fixedly connected to the side of the fastening frame away from the frame body. A clamping device is provided inside the frame body. There are two clamping devices distributed left and right. A guide device is provided on both the left and right sides of the frame body to drive the clamping devices. A manual drive device is also provided on both the left and right sides of the frame assembly to drive the guide device to rotate. An automatic drive device is provided outside the manual drive device to drive the manual drive device to rotate.

2. The flexible tooling for testing the tensile strength of metallized HTCC ceramic shells according to claim 1, characterized in that: The clamping device includes a clamping plate, friction marks, a threaded sleeve, a sliding head, and balls. The clamping plate is movably connected between the front and rear inner walls of the frame body. The clamping surface of the clamping plate is fixedly connected with friction marks. The side of the clamping plate away from the friction marks is fixedly connected with a threaded sleeve. Sliding heads are fixedly connected to both the front and rear sides of the clamping plate, and the sliding heads are slidably connected in the guide groove. Balls are movably connected to both the upper and lower sides of the sliding head, and the balls are in contact with the inner wall of the guide groove.

3. The flexible tooling for testing the tensile strength of metallized HTCC ceramic shells according to claim 2, characterized in that: The guiding device includes a threaded rod and a first pulley. The left and right inner walls of the frame body are movably connected with threaded rods. The end of the threaded rod near the threaded sleeve extends into the threaded sleeve, and the end of the threaded rod away from the threaded sleeve passes through the frame body and is fixedly connected to the first pulley.

4. The flexible tooling for testing the tensile strength of metallized HTCC ceramic shells according to claim 3, characterized in that: The manual drive device includes a rotating shaft, a handle, a second pulley, and a positioning groove. The rotating shaft is provided on the front side of the frame body and passes through the corresponding guide sleeve. The handle is fixedly connected to both ends of the rotating shaft. The second pulley is fixedly connected to the outer side of the rotating shaft. There are two second pulleys, and the second pulleys are movably connected to the corresponding first pulleys through belts. Positioning grooves are provided at both the left and right ends of the rotating shaft.

5. The flexible tooling for testing the tensile strength of metallized HTCC ceramic shells according to claim 4, characterized in that: The automatic drive device includes a drive motor, a sliding sleeve, a mounting groove, a snap-fit ​​connector, and a compression spring. The drive motor is located on the outer side of the frame body. The output end of the drive motor is fixedly connected to the sliding sleeve via a coupling, and the sliding sleeve is sleeved on the outer side of the rotating shaft. The inner wall of the sliding sleeve has a mounting groove, and a snap-fit ​​connector is located in the mounting groove. A compression spring is also located in the mounting groove, and the two ends of the compression spring are fixedly connected to the inner wall of the mounting groove and the snap-fit ​​connector, respectively. The shape of the snap-fit ​​connector is adapted to the shape of the positioning groove.

6. The flexible tooling for testing the tensile strength of metallized HTCC ceramic shells according to claim 5, characterized in that: The bottom of the frame body is provided with positioning holes. The frame body is made of metal and has a bright chromium layer electroplated on the surface with a thickness of 1.5-2.5um.

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