Composite copper strip tension test device

Abstract

The utility model relates to the technical field of composite copper strip tension test, in particular to a composite copper strip tension test device which comprises a pressing block, a cavity is formed in the pressing block, an annular shell is arranged in the cavity, a deep groove is formed in the bottom of the cavity, a driving motor is placed in the deep groove, and a plurality of movable connecting blocks are arranged in the annular shell. The movable connecting block comprises a movable cylinder block and a clamping block, a hole groove is formed in the side wall of the movable cylinder block, the clamping block is installed in the hole groove, the clamping block penetrates through the hole groove to move in the movable cylinder block, and second gears are placed at the two ends in the annular shell; the composite copper strip tension test device provided by the utility model has the beneficial effects that the two end surfaces of the composite copper strip can be uniformly stressed when a tension test is carried out on the composite copper strip, so that the situation that the internal stress of the composite copper strip is not uniform due to different pressures during fixation is avoided; and the inner part is easy to break, so that the measurement result is inaccurate.

Description

Technical Field

[0001] The utility model relates to the field of tensile tests of composite copper strips, and specifically to a tensile test device for composite copper strips. Background Technique

[0002] The composite copper strip is composed of one or more layers of pure copper and other metal materials. Pure copper has good electrical conductivity and thermal conductivity, and other metal materials may have characteristics such as high strength and corrosion resistance, so that the composite copper strip not only maintains excellent electrical conductivity, but also has the unique advantages of other metal materials.

[0003] The existing production process of composite copper strips mainly involves electrolytic copper, then removing the head and tail for ingot heating, hot rolling, milling, primary rolling, quenching in a bell-type furnace, pickling, finishing rolling, quenching again, secondary finishing rolling, cleaning, and finally shearing and forming. The formed composite copper strip needs to undergo a tensile test to evaluate the material quality of the composite copper strip, which is of great significance for improving the quality and performance of the composite copper strip and ensuring the reliability and service life of the product.

[0004] In the prior art, the clamping force of the test sample in the tensile test of the composite copper strip is inconsistent, and the stress on the two ends of the composite copper strip is uneven, which easily causes internal fracture and inaccurate measurement results.

[0005] Therefore, the utility model proposes a tensile test device for composite copper strips to solve the problems mentioned above. Content of the Utility Model

[0006] The purpose of the utility model is to provide a tensile test device for composite copper strips to solve the problems mentioned in the above background technique.

[0007] To achieve the above purpose, the utility model provides the following technical solution: A tensile test device for composite copper strips, the tensile test device for composite copper strips includes: a pressing block, a cavity is opened inside the pressing block, an annular shell is arranged inside the cavity, a deep groove is opened at the bottom of the cavity, and a driving motor is placed inside the deep groove;

[0008] The annular shell, several movable connection blocks are arranged inside the annular shell, and two gears II are placed at both ends inside the annular shell, and a threaded nail is installed through the center of the gear II;

[0009] The driving motor, the output end of the driving motor is provided with a rotating rod, a gear I is fixed on the outer surface of the rotating rod, and the tooth pitch of the gear I coincides with the gap between the movable connection blocks.

[0010] Preferably, the movable connecting block includes: a movable cylinder block and a clamping block. A hole groove is formed in the side wall of the movable cylinder block, and a clamping block is installed inside the hole groove. The clamping block passes through the hole groove and moves inside the movable cylinder block. A bearing is sleeved on the outer surface of the threaded nail, and the bearing is placed in the top hole of the pressing block.

[0011] Preferably, the threaded nails are placed at both ends of the pressing block, and a threaded column is installed at the bottom of the threaded nail through threads. The bottom of the threaded column is fixed on the movable block and the fixed block.

[0012] Preferably, the fixed block and the movable block are placed parallel to each other, and the bottom of the fixed block is fixed on the upper surface of the base.

[0013] Preferably, a movable groove is formed in the upper surface of the base, a lead screw is installed through the center inside the movable groove, and a group of parallel guide rods are placed inside the movable groove. The guide rods are placed parallel to the lead screw, and the guide rods and the lead screw penetrate through the bottom of the movable block.

[0014] Preferably, the threaded nail penetrates through the top of the pressing block and enters the inside of the cavity.

[0015] Preferably, the several movable connecting blocks are evenly distributed inside the annular shell.

[0016] Compared with the prior art, the beneficial effects of the present utility model are:

[0017] The composite copper strip tensile test device proposed by the present utility model can make the two end faces of the composite copper strip receive uniform force when clamping the two ends of the composite copper strip through the pressing block, the movable connecting block, the driving motor, the first gear, the second gear and the threaded nail, and avoid uneven internal force of the composite copper strip due to different fixing pressures during the tensile test of the composite copper strip, which is likely to cause internal fracture and inaccurate measurement results. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0019] Figure 2 is a sectional structural schematic diagram of the present utility model;

[0020] Figure 3 is the Figure 2 structural schematic diagram of A in the present utility model;

[0021] Figure 4 is a three-dimensional structural schematic diagram of the annular shell of the present utility model;

[0022] Figure 5 is a three-dimensional structural schematic diagram of the movable connecting block of the present utility model.

[0023] In the figure: 1, base; 11, movable groove; 12, lead screw; 13, guide rod; 2, fixed block; 3, movable block; 31, threaded post; 4, pressing block; 41, cavity; 42, deep groove; 43, drive motor; 44, rotating rod; 45, gear one; 5, movable connecting block; 51, movable cylinder block; 52, clamping block; 53, hole groove; 6, threaded nail; 61, gear two; 7, bearing; 8, annular shell. Detailed implementation mode

[0024] In order to clearly and completely describe the purpose, technical solution of the present utility model and make the advantages more clear, the following further details the embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present utility model, rather than all of the embodiments, and are only used to explain the embodiments of the present utility model, not to limit the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present utility model.

[0025] Embodiment 1

[0026] Please refer to Figures 1 - 5 , the present utility model provides a technical solution: a composite copper strip tensile test device, the composite copper strip tensile test device includes: a pressing block 4, a cavity 41 is opened inside the pressing block 4, wherein, the cavity 41 is annular, an annular shell 8 is arranged inside the cavity 41, a deep groove 42 is opened at the bottom of the cavity 41, and a drive motor 43 is placed inside the deep groove 42;

[0027] Annular shell 8, several movable connecting blocks 5 are arranged inside the annular shell 8, and several movable connecting blocks 5 are evenly distributed inside the annular shell 8. The movable connecting block 5 includes: a movable cylinder block 51 and a clamping block 52. A hole groove 53 is opened on the side wall of the movable cylinder block 51, and a clamping block 52 is installed inside the hole groove 53. The clamping block 52 moves inside the movable cylinder block 51 through the hole groove 53. Gear two 61 is placed at both ends inside the annular shell 8, a threaded nail 6 penetrates through the center of the gear two 61, and the threaded nail 6 penetrates through the top of the pressing block 4 and enters the inside of the cavity 41;

[0028] Drive motor 43, a rotating rod 44 is arranged at the output end of the drive motor 43, a gear one 45 is fixed on the outer surface of the rotating rod 44, and the tooth pitch of the gear one 45 is matched with the gap between the movable connecting blocks 5;

[0029] During use, the driving motor 43 drives the rotating rod 44 to rotate, thereby driving the first gear 45 fixed on the outer surface to rotate. The first gear 45 engages with the clearance between the movable connecting block 5 through the teeth, and then drives the movable connecting block 5 to rotate inside the annular shell 8. At the same time, the rotating movable connecting block 5 drives the second gears 61 at both ends inside the annular shell 8 to rotate synchronously, so that the threaded pins 6 can rotate synchronously, and then drive the two ends of the pressing block 4 to move downward evenly, so that the pressure on the outer surface of the outer end of the composite copper strip is the same, avoiding the situation that the composite copper strip breaks during the tensile test due to inconsistent pressure during fixing, resulting in inaccurate measurement results.

[0030] Embodiment 2

[0031] On the basis of Embodiment 1, in order to facilitate the up and down movement of the pressing block 4 driven by the threaded pin 6 during rotation, a bearing 7 is sleeved on the outer surface of the threaded pin 6. The bearing 7 is placed in the top hole of the pressing block 4. The threaded pins 6 are placed at both ends of the pressing block 4. A threaded column 31 is installed at the bottom of the threaded pin 6 through threads, and the bottom of the threaded column 31 is fixed on the movable block 3 and the fixed block 2;

[0032] During use, the two ends of the composite copper strip are respectively placed on the movable block 3 and the fixed block 2. When the threaded pin 6 rotates, it is convenient to drive the entire pressing block 4 to move up and down through the bearing 7. At the same time, the threaded pin 6 and the threaded column 31 are tightly connected to each other through the thread action, which is convenient to move the pressing block 4 downward to fix and clamp the two ends of the composite copper strip.

[0033] Embodiment 3

[0034] On the basis of Embodiment 2, in order to facilitate the measurement of the tensile test of the composite copper strip, the fixed block 2 and the movable block 3 are placed parallel to each other. The bottom of the fixed block 2 is fixed on the upper surface of the base 1. An activity groove 11 is opened on the upper surface of the base 1. A lead screw 12 is installed through the center of the inside of the activity groove 11. A group of parallel guide rods 13 are placed inside the activity groove 11. The guide rods 13 are placed parallel to the lead screw 12. The guide rods 13 and the lead screw 12 penetrate through the bottom of the movable block 3;

[0035] During use, the rotation of the lead screw 12 drives the movable block 3 to move left and right along the direction of the lead screw 12, driving one end of the composite copper strip clamped above the movable block 3 to be pulled, and measuring the tensile force of the composite copper strip through the tensile force sensor and the moving distance at the side end of the lead screw 12.

[0036] During actual use, the operator places the two ends of the composite copper strip on the upper surfaces of the fixed block 2 and the movable block 3 respectively. By rotating the rotating rod 44 through the output end of the driving motor 43, the first gear 45 is driven to rotate. The first gear 45 engages with the gap between the movable connecting block 5 through the teeth, driving the entire movable connecting block 5 to move inside the annular shell 8. Then, the second gears 61 at both ends inside the annular shell 8 are driven to move, causing the threaded nails 6 to be screwed into the threaded column 31 through the threads, driving the entire pressing block 4 to uniformly press down on the composite copper strip, making the pressure on the outer surface of the composite copper strip consistent. This avoids the situation where the composite copper strip breaks during the tensile test due to inconsistent pressure during fixation, resulting in inaccurate measurement results. After pressing, the lead screw 12 rotates to drive the movable block 3 to move left and right along the direction of the lead screw 12, pulling one end of the composite copper strip clamped above the movable block 3. The tensile force of the composite copper strip is measured through the tensile force sensor and the moving distance at the side end of the lead screw 12.

[0037] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A composite copper strip tensile test device, characterized in that: The composite copper strip tensile test device comprises: a pressing block (4), a cavity (41) is provided inside the pressing block (4), an annular shell (8) is arranged inside the cavity (41), a deep groove (42) is provided at the bottom of the cavity (41), and a driving motor (43) is placed inside the deep groove (42); An annular shell (8), wherein a plurality of movable connection blocks (5) are arranged inside the annular shell (8), a second gear (61) is placed at both ends inside the annular shell (8), and a threaded nail (6) is installed through the center of the second gear (61); A driving motor (43) is provided at the output end of the driving motor (43) with a rotating rod (44), a gear one (45) is fixed on the outer surface of the rotating rod (44), and the tooth pitch of the gear one (45) matches the gap between the movable connecting blocks (5).

2. A composite copper strip tensile test device according to claim 1, characterized in that: The movable connecting block (5) comprises: a movable barrel block (51) and a clamping block (52); a hole groove (53) is formed on the side wall of the movable barrel block (51); the clamping block (52) is installed inside the hole groove (53); the clamping block (52) passes through the hole groove (53) and moves inside the movable barrel block (51); a bearing (7) is sleeved on the outer surface of the threaded nail (6); and the bearing (7) is placed in the top hole of the pressing block (4).

3. A composite copper strip tensile test device according to claim 1, characterized in that: The threaded nails (6) are placed at both ends of the pressing block (4); a threaded column (31) is installed at the bottom of the threaded nail (6) through a thread; and the bottom of the threaded column (31) is fixed to the movable block (3) and the fixed block (2).

4. A composite copper strip tensile test device according to claim 3, characterized in that: The fixed block (2) and the movable block (3) are placed parallel to each other, and the bottom of the fixed block (2) is fixed on the upper surface of the base (1).

5. A composite copper strip tensile test device according to claim 4, characterized in that: The upper surface of the base (1) is provided with a movable groove (11), a screw rod (12) is installed through the center of the movable groove (11), a group of parallel guide rods (13) are placed inside the movable groove (11), the guide rods (13) are placed parallel to the screw rod (12), and the guide rods (13) and the screw rod (12) pass through the bottom of the movable block (3).

6. A composite copper strip tensile test device according to claim 1, characterized in that: The threaded nail (6) passes through the top of the pressing block (4) and penetrates into the interior of the cavity (41).

7. A composite copper strip tensile test device according to claim 1, characterized in that: The plurality of movable connection blocks (5) are evenly distributed inside the annular shell (8).

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