A fixture for testing strength of a composite metal piece

Abstract

The utility model relates to composite metal piece testing device technical field especially, a kind of fixture for composite metal piece strength test, including two ring sleeves, two the ring sleeve is respectively used to suit aluminum plate section and copper plate section;The outside of the ring sleeve is provided with clamping assembly and unlocking assembly, the clamping assembly is used to stop the aluminum plate section and copper plate section, the unlocking assembly is used to unlock clamping assembly;Wherein the back end of the ring sleeve is also provided with connecting rod, in the utility model, by using the design way of two ring sleeves setting composite piece two ends, the connection convenience of composite piece two ends can be greatly improved, when fixing and disassembling, only need to slide sleeve to complete its unlocking and limiting, relative to the way of two half circular ring bolt fixed in traditional scheme, effectively improve the convenience of installation and disassembly of composite piece in testing process, so as to reach the purpose of optimizing test efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of composite metal testing devices, and in particular to a fixture for testing the strength of composite metal parts. Background Technology

[0002] The positive and negative electrodes of lithium batteries are typically copper-aluminum composite electrodes, as shown in the attached diagram in the instruction manual. Figure 1 As shown, it specifically includes copper plate segment 1, copper plate connecting segment 2, aluminum plate segment 3 and aluminum plate connecting segment 4. The connection is achieved by friction welding. After the copper-aluminum composite pole is prepared, the copper-aluminum composite pole needs to be tested for strength.

[0003] Current testing devices typically use two semi-rings to form a complete ring, which is used to clamp the outer side of the copper or aluminum plate segment. Finally, a tensile test is performed using a tensile testing machine. For its specific structure and principle, please refer to the prior art Chinese patent announcement number "CN217586688U" which discloses a tensile joint for testing the strength of composite metal parts.

[0004] However, the current assembly method using two semi-rings requires repeated bolt removal and installation during connection and disassembly, which makes the assembly process cumbersome and severely restricts the overall testing efficiency.

[0005] Based on this, in order to further improve the connection efficiency of such composite parts, we propose a fixture for testing the strength of composite metal parts. Utility Model Content

[0006] The purpose of this invention is to solve the shortcomings of existing technologies, such as the need for repeated assembly and disassembly of bolts, which makes the assembly process cumbersome and severely restricts the overall testing efficiency. Therefore, this invention proposes a fixture for testing the strength of composite metal parts.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] Design a fixture for testing the strength of composite metal parts, including two rings, which are respectively used to mount an aluminum plate segment and a copper plate segment;

[0009] A clip assembly and an unlocking assembly are provided on the outer side of the ring sleeve. The clip assembly is used to lock the aluminum plate segment and the copper plate segment, and the unlocking assembly is used to unlock the clip assembly.

[0010] The back end of the ring is also provided with a connecting rod, and a fastening assembly is provided between the connecting rod and the ring.

[0011] Furthermore, the two ends of the ring are hollowed out;

[0012] The clamping assembly includes a plurality of positioning beads that are radially inserted along the ring, and the plurality of positioning beads form a stop ring surface that stops at the inner neck of the aluminum plate segment and the copper plate segment.

[0013] Furthermore, the unlocking component includes a sliding sleeve slidably connected to the outside of the ring sleeve, and the inner side of the sliding sleeve has an abutment ring that abuts against the positioning bead as it moves inward;

[0014] A spring is fixedly connected between the sliding sleeve and the ring sleeve.

[0015] Furthermore, the connecting rod is inserted into the opening at the tail end of the ring sleeve;

[0016] The fastening assembly includes a positioning glass bead embedded on the outside of the connecting rod, and the outer side of the ring sleeve has a hole that matches the telescopic end of the positioning glass bead.

[0017] Furthermore, it also includes an abutting component installed inside the ring sleeve, the abutting component being used to abut the aluminum plate segment and the copper plate segment.

[0018] Furthermore, the abutting component includes a screw threaded to the tail end of the connecting rod, and a pressure block is rotatably connected to the free end of the screw, the pressure block abutting against the back end of the aluminum plate segment or copper plate segment.

[0019] The present invention proposes a fixture for testing the strength of composite metal parts. The advantages of this fixture are as follows: By using two rings to fit around both ends of the composite part, the connection between the two ends of the composite part can be greatly improved. When fixing and disassembling the composite part, it is only necessary to slide the sliding sleeve to unlock and limit it. Compared with the traditional method of fixing with two semi-circular ring bolts, this effectively improves the convenience of installing and disassembling the composite part during the test, thus achieving the goal of optimizing the test efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a composite metal component structure in the prior art;

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

[0022] Figure 3 This is a cross-sectional view of the ring of this utility model;

[0023] Figure 4 This is a schematic diagram of the ring-shaped explosion of this utility model;

[0024] Figure 5 This is a diagram showing the state of a composite metal part when two ring-shaped clamps are used.

[0025] In the diagram: 1. Ring; 2. Abutting component; 21. Screw; 22. Pressure block; 3. Clamping component; 31. Positioning bead; 4. Unlocking component; 41. Sliding sleeve; 42. Abutting ring; 43. Spring; 5. Connecting rod; 6. Fastening component; 61. Positioning glass bead. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Reference Figure 2-5 As an embodiment of this utility model, a fixture for testing the strength of composite metal parts is disclosed. Specifically, the fixture includes two rings 1, which are used to fit an aluminum plate segment and a copper plate segment respectively. It should be noted that in this embodiment, the inner diameter of the two rings 1 is adapted according to the diameter of the aluminum plate segment and the copper plate segment.

[0028] A clip assembly 3 and an unlocking assembly 4 are provided on the outer side of the ring 1. The clip assembly 3 is used to lock the aluminum plate segment and the copper plate segment, and the unlocking assembly 4 is used to unlock the clip assembly 3.

[0029] The back end of the ring sleeve 1 is also provided with a connecting rod 5. One end of the connecting rod 5 is tubular and is used to be sleeved on the shaft of the tensile testing machine. Of course, the connecting rod 5 and the rod end of the tensile testing machine can also be fixed by bolts or locking pins. After connection, the connecting rod 5 can be pulled by the tensile testing machine to complete the tensile test of the composite. A fastening assembly 6 is provided between the connecting rod 5 and the ring sleeve 1.

[0030] In some embodiments, the two ends of the ring sleeve 1 in this utility model are hollowed out. Preferably, the inner diameter of the two ring sleeves 1 is consistent with the outer diameter of the aluminum plate segment and the copper plate segment, respectively. In this way, when the aluminum plate segment and the copper plate segment are inserted into the two ring sleeves 1, the peripheral side can be stopped and locked by the set clamping assembly 3. After the two ring sleeves 1 are locked and fixed at both ends of the entire composite, two tensile testing machines can be connected to each other for tensile testing.

[0031] The clamping assembly 3 includes a plurality of positioning beads 31 that are radially inserted along the ring 1. The plurality of positioning beads 31 form a stop ring surface, which stops at the inner neck of the aluminum plate segment and the copper plate segment.

[0032] Based on the above embodiments, the unlocking component 4 in this embodiment includes a sliding sleeve 41 slidably connected to the outside of the ring sleeve 1. The inner side of the sliding sleeve 41 has an abutment ring 42, and the abutment ring 42 abuts against the positioning bead 31 and moves inward.

[0033] A spring 43 is fixedly connected between the sliding sleeve 41 and the ring sleeve 1.

[0034] During the specific test, firstly, pull the outer sliding sleeves 41 of the two ring sleeves 1 in sequence. The inner abutment ring 42 and positioning bead 31 of the sliding sleeve 41 separate. At this time, the positioning bead 31 is in a free state. Insert the aluminum plate segment and copper plate segment of the composite component into the open ends of the two ring sleeves 1 in sequence. After insertion, release the pressure on the sliding sleeve 41. Under the push of the spring 43, the sliding sleeve 41 moves forward and moves inward by abutting the positioning bead 31 through the inner abutment ring 42. At this time, several positioning beads 31 in the same ring sleeve 1 are stuck on the outer side of the aluminum plate segment and the copper plate segment, thus clamping and limiting the aluminum plate segment and the copper plate segment. Finally, connect the connecting rods 5 on the two ring sleeves 1 to the tensile testing machine for tensile testing.

[0035] In some embodiments, the connecting rod 5 of this invention is inserted into the tail end opening of the ring sleeve 1;

[0036] The fastening assembly 6 includes a positioning glass bead 61 embedded on the outside of the connecting rod 5. The outer side of the ring sleeve 1 is provided with a hole that matches the telescopic end of the positioning glass bead 61. In other words, in this embodiment, the connecting rod 5 is detachably connected to the ring sleeve 1 by the snap-fit ​​of the positioning glass bead 61 and the hole. This design allows for the selection of an appropriate ring sleeve 1 based on the aluminum plate segment and copper plate segment of different composite parts, thereby improving the convenience of replacement and assembly.

[0037] It should be noted that this embodiment also includes an abutting component 2 installed inside the ring sleeve 1, the abutting component 2 being used to abut the aluminum plate segment and the copper plate segment.

[0038] Specifically, in this embodiment, the contact component 2 includes a screw 21 threaded to the tail end of the connecting rod 5. A pressure block 22 is rotatably connected to the free end of the screw 21. The pressure block 22 abuts against the back end of the aluminum plate segment or copper plate segment. It should be noted that in this embodiment, tool grooves, such as hexagonal sockets, can be provided on the end of the screw 21 and the end face of the pressure block 22. When installing the composite component, the screw 21 can be turned by the hexagonal socket bolt to drive the pressure block 22 to press against the back end of the aluminum plate segment and the copper plate segment, thereby ensuring the stability of the force at both ends of the entire composite component during tensile testing.

[0039] In summary, the design of using two rings 1 to cover both ends of the composite component in this utility model can greatly improve the convenience of connecting both ends of the composite component. When fixing and disassembling the composite component, it is only necessary to slide the sliding sleeve 41 to unlock and limit it. Compared with the traditional solution of using two semi-circular ring bolts for fixing, it effectively improves the convenience of installing and disassembling the composite component during the testing process, thus achieving the goal of optimizing testing efficiency.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A fixture for testing the strength of composite metal parts, characterized in that, It includes two rings (1), which are used to fit the aluminum plate segment and the copper plate segment respectively; A clip assembly (3) and an unlocking assembly (4) are provided on the outer side of the ring (1). The clip assembly (3) is used to lock the aluminum plate segment and the copper plate segment, and the unlocking assembly (4) is used to unlock the clip assembly (3). The back end of the ring sleeve (1) is also provided with a connecting rod (5), and a fastening assembly (6) is provided between the connecting rod (5) and the ring sleeve (1).

2. The fixture for testing the strength of composite metal parts according to claim 1, characterized in that: The two ends of the ring (1) are hollowed out; The clip assembly (3) includes a plurality of positioning beads (31) that are radially inserted along the ring (1). The plurality of positioning beads (31) form a stop ring surface, which stops at the inner neck of the aluminum plate segment and the copper plate segment.

3. The fixture for testing the strength of composite metal parts according to claim 2, characterized in that: The unlocking component (4) includes a sliding sleeve (41) slidably connected to the outside of the ring sleeve (1), and the inner side of the sliding sleeve (41) has an abutment ring (42), which abuts against the positioning bead (31) and moves inward. A spring (43) is fixedly connected between the sliding sleeve (41) and the ring sleeve (1).

4. A fixture for testing the strength of composite metal parts according to claim 2, characterized in that: The connecting rod (5) is inserted into the tail end opening of the ring sleeve (1); The fastening assembly (6) includes a positioning glass bead (61) embedded on the outside of the connecting rod (5), and the outer side of the ring sleeve (1) is provided with a hole that matches the telescopic end of the positioning glass bead (61).

5. A fixture for testing the strength of composite metal parts according to claim 1, characterized in that: It also includes an abutting component (2) installed inside the ring (1), the abutting component (2) being used to abut the aluminum plate segment and the copper plate segment.

6. A fixture for testing the strength of composite metal parts according to claim 5, characterized in that: The abutting component (2) includes a screw (21) threaded to the tail end of the connecting rod (5), and a pressure block (22) is rotatably connected to the free end of the screw (21), the pressure block (22) abutting against the back end of the aluminum plate segment or copper plate segment.

Images