Device for measuring peel strength of copper-aluminum composite material

Abstract

The utility model belongs to the technical field of copper-aluminum composite material performance testing, and particularly relates to a copper-aluminum composite material peel strength measuring device which comprises a rack, an upper peeling assembly, a lower peeling assembly and a driving piece. Wherein the rack comprises a horizontal frame; the upper stripping assembly is fixed above the horizontal frame, the upper stripping assembly comprises an upper winding roller, and the upper stripping assembly vertically and upwards stretches a copper layer through the upper winding roller; the lower stripping assembly is fixed below the horizontal frame, the lower stripping assembly comprises a lower winding roller, and the lower stripping assembly vertically stretches the aluminum layer downwards through the lower winding roller; the driving part is used for driving the upper winding roller and the lower winding roller to rotate at the same time, and the driving assembly is installed on the portion, below the lower stripping assembly, of the rack. According to the utility model, the upper stripping assembly and the lower stripping assembly cooperate with each other, so that measurement errors caused by asymmetric operation are reduced, and the test efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to copper aluminium composite material performance test technical field, especially related to a copper aluminium composite material peeling strength measuring device. BACKGROUND

[0002] Copper aluminium composite material because its excellent comprehensive performance, in the electric power transmission, electronic equipment, automobile manufacturing and building etc. field has obtained the widespread application. This material passes through the close combination of copper layer and aluminium layer, not only utilizes the high conductivity and corrosion resistance of copper, also helps the lightweight, high strength and cost advantage of aluminium. However, because copper and aluminium's physical performance, chemical property difference is remarkable (such as heat conductivity coefficient and thermal expansion coefficient), in the production process, the problem of interface combination not firm easily appears, this poses a great challenge to the practical application of composite material.

[0003] In order to evaluate copper aluminium composite material's interface combination performance, peeling strength becomes an important test index. Peeling strength reflects the firm degree of material interface, directly influences the reliability and safety of product in the use process. However, the current peeling strength test of copper aluminium composite material has the following technical problems: ① the existing peeling strength test device mostly is designed for single material, and it is difficult to meet the test demand of different specifications or shapes of samples in copper aluminium composite material;② traditional device is easy to produce stress concentration or sample deviation in the test process, and the accuracy and repeatability of peeling force measurement result are influenced.

[0004] In view of the above technical problems, it is urgent to need a kind of widely applicable peeling strength measuring device that can be efficient and accurate, to meet the demand of copper aluminium composite material peeling strength test. SUMMARY

[0005] The utility model discloses a copper aluminium composite material peeling strength measuring device, which improves the adaptability and accuracy of the test by synchronous stretching and peeling of the copper layer and the aluminum layer.

[0006] To achieve the above object, the technical scheme adopted is:

[0007] A copper aluminium composite material peeling strength measuring device, the copper aluminium composite material includes copper layer and aluminium layer that are bonded to each other, comprising:

[0008] A rack, the rack includes a horizontal frame;

[0009] An upper peeling assembly is fixed above the horizontal frame, the upper peeling assembly includes an upper winding roller, and the upper peeling assembly stretches the copper layer vertically upward through the upper winding roller;

[0010] A lower peeling assembly is fixed below the horizontal frame, the lower peeling assembly comprises a lower winding roller, and the lower peeling assembly stretches the aluminum layer vertically downward through the lower winding roller.

[0011] And a driving member is used for driving the upper winding roller and the lower winding roller to rotate simultaneously, and the driving assembly is installed on the frame below the lower peeling assembly.

[0012] According to the copper-aluminum composite material peeling strength measuring device, further, the upper roller set and the lower roller set are oppositely arranged on the horizontal frame, and the copper-aluminum composite material is horizontally placed in the gap between the upper roller set and the lower roller set.

[0013] According to the copper-aluminum composite material peeling strength measuring device, further, the upper peeling assembly further comprises an L-shaped upper support, the upper support comprises a first horizontal part and a first vertical part, the first vertical part is fixedly arranged above the horizontal frame, and the upper winding roller is fixedly arranged at the top of the first horizontal part.

[0014] According to the copper-aluminum composite material peeling strength measuring device, further, the upper peeling assembly further comprises an upper pulling rope and an upper chuck, the upper end of the upper pulling rope is wound on the upper winding roller, and the lower end is connected with the upper chuck; the upper chuck is used for clamping the copper layer.

[0015] According to the copper-aluminum composite material peeling strength measuring device, further, a first tension meter is arranged on the upper pulling rope, and the first tension meter is used for measuring the peeling strength of the copper-aluminum composite material.

[0016] According to the copper-aluminum composite material peeling strength measuring device, further, the lower peeling assembly further comprises an L-shaped lower support, the lower support comprises a second horizontal part and a second vertical part, the second vertical part is fixedly arranged below the horizontal frame, and the lower winding roller is fixedly arranged at the bottom of the second horizontal part.

[0017] According to the copper-aluminum composite material peeling strength measuring device, further, 7. the lower peeling assembly further comprises a lower pulling rope and a lower chuck, the lower end of the lower pulling rope is wound on the lower winding roller, and the upper end is connected with the lower chuck; the lower chuck is used for clamping the aluminum layer.

[0018] According to the copper-aluminum composite material peeling strength measuring device, further, a second tension meter is arranged on the lower pulling rope, and the second tension meter is used for measuring the peeling strength of the copper-aluminum composite material.

[0019] The utility model discloses a copper -aluminium composite material peeling strength measuring device, further, the driving part is motor, the output shaft of motor is solid with the lower winding roller, and the output shaft of motor is connected with the upper winding roller through the belt.

[0020] The above technical scheme has the beneficial effects of:

[0021] The cooperation of the upper peeling assembly and the lower peeling assembly realizes the synchronous stretching of the copper layer and the aluminum layer. The driving of the upper winding roller and the lower winding roller is controlled by the same driving part, ensuring the uniform distribution of force in the peeling process, reducing the measurement error caused by asymmetric operation, and improving the test efficiency.

[0022] The upper roller set and the lower roller set are arranged on the horizontal frame, and the gap width between the roller sets is adjusted through the adjusting needle, so that copper-aluminium composite material samples of different specifications and thicknesses are adapted, and the application range of the device is expanded. This flexibility makes it not only suitable for laboratory research, but also can meet the testing needs in industrial production. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings of the embodiments of the utility model will be briefly introduced in the following. Among them, the drawings are only used to show some embodiments of the utility model, and the whole embodiments of the utility model are not limited to this.

[0024] Figure 1 It is one of the structure schematic diagram of copper -aluminium composite material peeling strength measuring device of the utility model,

[0025] Figure 2 It is the structure schematic diagram of copper -aluminium composite material peeling strength measuring device of the utility model,

[0026] Figure 3 It is the structure schematic diagram of the rack of the utility model,

[0027] Figure 4 It is the structure schematic diagram of the upper peeling assembly of the utility model,

[0028] Figure 5 It is the structure schematic diagram of the lower peeling assembly of the utility model.

[0029] The meaning represented by the serial number in the drawing is:

[0030] 1. rack, 101. horizontal frame, 102. upper roller set, 103. lower roller set,

[0031] 2. upper peeling assembly, 201. upper support, 202. upper winding roller, 203. upper pull rope, 204. first tension meter, 205. upper chuck, 2051. jam bolt;

[0032] 3. lower peeling assembly, 302. lower winding roller, 303. lower pull rope, 304. second tensile meter, 305. lower chuck;

[0033] 4. motor, 401. belt. DETAILED DESCRIPTION

[0034] Hereinafter, the example schemes of the embodiments of the present application will be described clearly and completely in conjunction with the drawings of the embodiments of the present application. Unless otherwise defined, the technical terms or scientific terms used in the present application should be understood as the usual meanings understood by those skilled in the art.

[0035] As shown in Figure 1 and Figure 2 , the copper-aluminum composite material in the present application includes a copper layer and an aluminum layer bonded to each other, and the copper-aluminum composite material peeling strength measuring device includes a rack 1, an upper peeling assembly 2, a lower peeling assembly 3, and a driving member. The rack 1 includes a horizontal frame 101. The upper peeling assembly 2 is welded and fixed above the horizontal frame 101. The upper peeling assembly 2 includes an upper winding roller 202, and the upper peeling assembly 2 stretches and peels the copper layer vertically upward through the upper winding roller 202. The lower peeling assembly 3 is welded and fixed below the horizontal frame 101. The lower peeling assembly 3 includes a lower winding roller 302, and the lower peeling assembly 3 stretches and peels the aluminum layer vertically downward through the lower winding roller 302. The driving member is used to drive the upper winding roller 202 and the lower winding roller 302 to rotate simultaneously. The driving assembly is installed on the rack 1 below the lower peeling assembly 3. The upper peeling assembly 2 and the lower peeling assembly 3 cooperate with each other to realize the synchronous stretching of the copper layer and the aluminum layer. The driving of the upper winding roller 2 and the lower winding roller 3 is controlled by the same driving member, which ensures that the force is evenly distributed during the peeling process, reduces the measurement error caused by asymmetric operation, and improves the test efficiency.

[0036] Further, in the actual working process, the copper-aluminum composite material can be placed upside down in the copper-aluminum composite material peeling strength measuring device and stretched. Specifically, the upper peeling assembly 2 can be used to stretch and peel the aluminum layer, and the lower peeling assembly 3 can be used to stretch and peel the copper layer.

[0037] As shown in Figure 3 , the horizontal frame 101 is provided with an upper roller set 102 and a lower roller set 103 opposite to each other. In the actual working process, the copper-aluminum composite material is horizontally placed in the gap between the upper roller set 102 and the lower roller set 103.

[0038] Further, the horizontal frame 101 is also provided with a plurality of adjusting pins (not shown in the figure), which are used to adjust the gap width between the upper roller set 102 and the lower roller set 103.

[0039] Further, a gap width between the upper roller set 102 and the lower roller set 103 is T, and a thickness of the copper-aluminum composite material is t. In actual work, the gap width between the upper roller set 102 and the lower roller set 103 is adjusted by the plurality of adjusting pins, so that the width T and the thickness t satisfy T=t+a, wherein a is in a range of 0.1-0.2 mm. Not only can direct extrusion of the copper-aluminum composite material by the upper roller set 102 and the lower roller set 103 be avoided, thereby reducing mechanical damage to the surface of the copper-aluminum composite material and improving accuracy and reliability of test results, but also the copper-aluminum composite material with different thicknesses can be tested, thereby expanding the use range of the utility model.

[0040] As shown in Figure 4 The upper stripping assembly 2 further includes an upper bracket 201 in an L shape, the upper bracket 201 including a first horizontal part and a first vertical part; the upper bracket 201 is welded and fixed above the horizontal frame 101 through the first vertical part, and an upper winding roller 202 is fixed to the top of the first horizontal part through two end support seats thereof.

[0041] As shown in Figure 4 The upper stripping assembly 2 further includes an upper pull rope 203 and an upper collet 205. The upper end of the upper pull rope 203 is wound on the upper winding roller 202, and the lower end of the upper pull rope 203 is connected with the upper collet 205.

[0042] As shown in Figure 4 The upper collet 205 is used for clamping the copper layer. Specifically, a recess is formed in one side of the upper collet 205, and a jacking bolt 2051 is installed on the other side of the upper collet 205 which is perpendicular to the one side. In actual work, the end of the copper layer is inserted into the recess of the upper collet 205, and the jacking bolt 2051 is rotated to lock the end of the copper layer, thereby facilitating the subsequent stretching process.

[0043] As shown in Figure 4 The first tension meter 204 is further installed on the upper pull rope 203, and the first tension meter 204 is used for measuring the peeling strength of the copper-aluminum composite material. In actual work, the copper layer is stretched upward along with the upper pull rope 203 (and the upper collet 205), and the first tension meter 204 displays and records the tension in real time, so as to calculate the peeling strength of the copper-aluminum composite material subsequently.

[0044] As shown in Figure 5 The lower stripping assembly 3 further includes a lower bracket 301 in an L shape, the lower bracket 301 including a second horizontal part and a second vertical part; the lower bracket 301 is welded and fixed below the horizontal frame 101 through the second vertical part, and a lower winding roller 302 is fixed to the bottom of the second horizontal part through two end support seats thereof.

[0045] As shown in Figure 5As shown, the lower stripping assembly 3 also includes a pull-down rope 303 and a lower clamp 305. The lower end of the pull-down rope 303 is wound on the lower winding roller 302, and the upper end of the pull-down rope 303 is connected to the lower clamp 305.

[0046] like Figure 5 As shown, the lower chuck 305 is used to clamp the aluminum layer. Specifically, a groove is provided on one side of the lower chuck 305, and a tightening bolt 2051 is installed on the other side perpendicular to one side of the lower chuck 305. In actual operation, the end of the aluminum layer is inserted into the groove of the lower chuck 305, and the tightening bolt 2051 is rotated to lock the end of the aluminum layer, which facilitates the subsequent stretching process.

[0047] like Figure 5 As shown, a second tensile tester 304 is also installed on the pull-down rope 303. Similarly, the second tensile tester 304 is also used to measure the peel strength of the copper-aluminum composite material. In actual operation, as the pull-down rope 303 (and the lower clamp 305) pulls the copper layer downward, the second tensile tester 304 will display and record the applied tension in real time for subsequent calculation of the peel strength of the copper-aluminum composite material.

[0048] It should be understood that the first tensile tester 204 and the second tensile tester 304 of this utility model can be used to verify each other. If abnormal data occurs, the problem can be quickly found by comparing the measurements of the two instruments.

[0049] like Figure 1 and Figure 2 As shown, the driving component is a motor 4. The output shaft of the motor 4 is welded to the lower winding roller 302, and the output shaft of the motor 4 is connected to the upper winding roller 202 via a belt 401. The output shaft of the motor 4 can drive the upper winding roller 202 and the lower winding roller 302 to rotate simultaneously, thereby ensuring that the upper pull rope 203 and the lower pull rope 303 can simultaneously stretch the copper layer and the aluminum layer, respectively. This ensures uniform force distribution during the peeling process, reduces measurement errors caused by asymmetrical operation, and improves testing efficiency.

[0050] Furthermore, the upper winding roller 202 and the lower winding roller 302 have the same roller diameter to ensure that the surface of the upper winding roller 202 and the surface of the lower winding roller 302 rotate at the same linear speed.

[0051] The working principle of this application is:

[0052] S1. As Figure 1 As shown, the copper-aluminum composite material is inserted into the gap between the upper roller group 102 and the lower roller group 103 from the feed end of this utility model. By adjusting multiple adjusting pins, the gap T between the upper roller group 102 and the lower roller group 103 and the thickness t of the copper-aluminum composite material satisfy T=t+a, where the value of a ranges from 0.1 to 0.2 mm.

[0053] S2. Artificially (or mechanically) stripping the copper-aluminum composite material at the outlet end into a copper layer and an aluminum layer, and fixing and connecting the copper layer and the aluminum layer to the upper chuck 205 and the lower chuck 305, respectively;

[0054] S3. Keeping the copper layer and the aluminum layer in a vertical state, and turning on the first tension meter 204, the second tension meter 304 and the motor 4;

[0055] S4. Rotating the upper winding roller 202, and driving the copper layer to stretch and strip upward through the upper pull rope 203 and the upper chuck 205, while the first tension meter 204 displays and records the tension data in real time; rotating the lower winding roller 302, and driving the aluminum layer to stretch and strip downward through the lower pull rope 303 and the lower chuck 305, while the second tension meter 304 displays and records the tension data in real time;

[0056] S5. Continuously working the motor 4 until the copper layer and the aluminum layer of the copper-aluminum composite material are completely stripped; and calculating the stripping strength of the copper-aluminum composite material according to the data recorded by the first tension meter 204 and the second tension meter 304.

[0057] It should be understood that, in step S4, along with the upward (or downward) stripping force of the copper layer (or the aluminum layer), the copper-aluminum composite material in the gap of the upper roller set 102 and the lower roller set 103 also continuously moves forward, so as to ensure the normal progress of the stretching and stripping process.

[0058] It should be noted that, when an element is referred to as being “connected”, “coupled” or “linked” to another element, it can mean that the two elements are directly connected, coupled or linked, but it should be understood that there can be intermediate elements between the two elements; that is, both direct connection and indirect connection are covered.

[0059] It should be noted that the use of “one” or “a” or similar words does not necessarily mean a quantity limitation. The words “include” or “contain” or similar words mean that the elements or objects before the words cover the elements or objects listed after the words and their equivalents, without excluding other elements or objects.

[0060] It should be noted that the terms indicating the orientation or position relationship, such as “upper”, “lower”, “left”, “right” and the like, are only used to represent the relative position relationship, which is for the convenience of describing the utility model, and the devices or elements referred to do not necessarily have a specific orientation, and are not necessarily constructed and operated in a specific orientation; when the absolute position of the described object changes, the relative position relationship can also change accordingly.

[0061] The preferred embodiments for implementing the present application have been described in detail above, but it should be understood that the purpose of these embodiments is merely to illustrate, and not to limit the scope, application or structure of the present application in any way. The protection scope of the present application is defined by the appended claims and their equivalents. Those skilled in the art can make many changes to the foregoing embodiments under the guidance of the present application, and these changes all fall within the protection scope of the present application.

Claims

1. A device for measuring the peel strength of a copper-aluminum composite material, wherein the copper-aluminum composite material comprises mutually bonded copper and aluminum layers, characterized in that, include: The rack includes a horizontal frame; An upper stripping assembly is fixed above the horizontal frame. The upper stripping assembly includes an upper winding roller, which vertically stretches the copper layer upward through the upper winding roller. A lower peeling assembly is fixed below the horizontal frame. The lower peeling assembly includes a lower winding roller, which vertically pulls the aluminum layer downward through the lower winding roller. And a drive unit for driving the upper winding roller and the lower winding roller to rotate simultaneously, the drive unit being mounted on a frame below the lower peeling assembly.

2. The copper-aluminum composite material peel strength measuring device according to claim 1, characterized in that, The horizontal frame is provided with an upper roller group and a lower roller group, and the copper-aluminum composite material is placed horizontally in the gap between the upper roller group and the lower roller group. The horizontal frame is also equipped with an adjusting pin, which is used to adjust the gap width between the upper roller group and the lower roller group.

3. The copper-aluminum composite material peel strength measuring device according to claim 1, characterized in that, The upper stripping assembly further includes an L-shaped upper support, which includes a first horizontal portion and a first vertical portion; the first vertical portion is fixed above the horizontal support, and the upper winding roller is fixed at the top of the first horizontal portion.

4. The copper-aluminum composite material peel strength measuring device according to claim 1 or 3, characterized in that, The upper stripping assembly also includes an upper pull rope and an upper clamp, the upper end of the upper pull rope being wound around the upper winding roller, and the lower end of the upper pull rope being connected to the upper clamp; The upper chuck is used to hold the copper layer.

5. The copper-aluminum composite material peel strength measuring device according to claim 4, characterized in that, A first tensile tester is installed on the pull rope, which is used to measure the peel strength of the copper-aluminum composite material.

6. The copper-aluminum composite material peel strength measuring device according to claim 1, characterized in that, The lower stripping assembly further includes an L-shaped lower support, which includes a second horizontal portion and a second vertical portion; the second vertical portion is fixed below the horizontal frame, and the lower winding roller is fixed at the bottom of the second horizontal portion.

7. The copper-aluminum composite material peel strength measuring device according to claim 1 or 6, characterized in that, The lower stripping assembly also includes a pull-down rope and a lower clamp, the lower end of the pull-down rope being wound around the lower winding roller, and the upper end of the pull-down rope being connected to the lower clamp; The lower chuck is used to hold the aluminum layer.

8. The copper-aluminum composite material peel strength measuring device according to claim 7, characterized in that, A second tensile tester is installed on the pull-down rope, which is used to measure the peel strength of the copper-aluminum composite material.

9. The copper-aluminum composite material peel strength measuring device according to claim 1, characterized in that, The driving component is a motor, the output shaft of which is fixedly connected to the lower winding roller, and the output shaft of the motor is connected to the upper winding roller via a belt.

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