Clamping mechanism for aluminum foil tension test

By designing the clamping mechanism for aluminum foil tensile testing, a vertically arranged test frame, slideable clamping jaws and pre-clip components, the inclination and wrinkle of the aluminum foil during the clamping process is solved, and the accuracy of the test data and the convenience of adjustment are improved.

CN223244166UActive Publication Date: 2025-08-19山东兴元新能源科技有限公司
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Patent Information

Application Number
CN202422114941.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-30
Publication Date
2025-08-19
Estimated Expiration
2034-08-30

AI Technical Summary

Technical Problem

Existing tensile testing equipment is prone to tilt upward and downward directions or wrinkles when clamping aluminum foil, which affects the test data and is inconvenient to adjust.

Method used

A clamping mechanism for aluminum foil tensile testing is designed, using a vertically arranged test frame and a symmetrical upper and lower fixture. The clamp includes a sliding clamping jaw and an aluminum foil pre-clutch assembly. By pre-cluting and flattening the aluminum foil sheet, wrinkles are reduced, and then adjusted to the vertical direction before final clamping is performed.

Benefits of technology

It effectively reduces the wrinkle and inclination of aluminum foil during clamping, reduces the impact on tensile test data, and improves the convenience and accuracy of adjustment.

✦ Generated by Eureka AI based on patent content.

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Abstract

A clamping mechanism for an aluminum foil tension test comprises a test rack which is vertically arranged, and two clamps which are symmetrically arranged up and down are arranged in the test rack; the clamp comprises a base and two clamping claws arranged on one side of the base in pairs, and one clamping claw is connected with the base and connected with the other clamping claw in a sliding mode. An aluminum foil pre-clamping assembly is arranged on one clamping claw of one clamp and comprises a fixing plate and an elastic clamping plate which are arranged in the length direction of the plane where the clamping end is located. And the base of the upper clamp is connected with a lifting mechanism mounted on the test rack. One end of a to-be-detected aluminum foil is clamped by the upper clamp or the lower clamp, the other end of the to-be-detected aluminum foil passes through the other clamp and is clamped in advance by the aluminum foil pre-clamping assembly on the to-be-detected aluminum foil, the aluminum foil is tensioned or leveled in advance, wrinkles are reduced, the position of the other end of the aluminum foil is conveniently adjusted on the aluminum foil pre-clamping assembly, and the detection accuracy is improved. And the other end of the aluminum foil is clamped through a lower clamp or an upper clamp.
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Description

Technical Field

[0001] The utility model relates to the technical field of tensile testing equipment, in particular to a clamping mechanism for aluminum foil tensile testing. Background Art

[0002] During the production of aluminum foil, in order to evaluate its mechanical properties under stress, including key indicators such as strength, ductility, and elastic modulus, it is generally subjected to tensile testing using tensile testing equipment.

[0003] Existing tensile testing equipment uses two clamps, one above the other, to clamp the aluminum foil to be tested before performing the tensile test. However, after clamping one end of the aluminum foil with one clamp, the foil must be stretched or flattened before the other end can be clamped with the other clamp. If the clamped aluminum foil tilts vertically or has wrinkles, this will affect the tensile test data, requiring the upper or lower clamp to be reopened and adjusted. This adjustment method is inconvenient and may require multiple adjustments. Utility Model Content

[0004] In order to solve the technical problems existing in the above-mentioned background technology, the utility model provides a clamping mechanism for aluminum foil tensile testing.

[0005] The technical solution of this utility model is as follows:

[0006] A clamping mechanism for aluminum foil tensile testing includes a vertically arranged test frame, wherein the test frame is provided with two clamps symmetrically arranged in an upper and lower direction;

[0007] The clamp includes a base and two clamping claws arranged in pairs on one side of the base, one clamping claw is connected to the base and is slidably connected to the other clamping claw, and the two clamping claws are detachably connected by a connecting piece. Both clamping claws have a clamping end on the same side, and the two clamping ends can cling to and clamp one end of the aluminum foil;

[0008] An aluminum foil pre-clamping assembly is provided on a clamping claw of one of the clamps. The aluminum foil pre-clamping assembly includes a fixed plate and an elastic clamping plate, both of which are arranged along the length direction of the plane where the clamping end is located. The elastic clamping plate is located below the fixed plate and can be tightly attached to the lower end surface of the fixed plate upwards.

[0009] The base of the upper fixture is connected to a lifting mechanism installed on the test frame.

[0010] One end of the aluminum foil to be tested is first clamped by the upper or lower clamp, and the other end passes through another clamp and is pre-clamped by the aluminum foil pre-clamping component on it to pre-tighten or flatten the aluminum foil to reduce wrinkles. The other end of the aluminum foil can be easily adjusted on the aluminum foil pre-clamping component. After adjusting to the vertical direction, the other end of the aluminum foil is clamped by the lower or upper clamp.

[0011] Regarding the specific structure of a clamp, the two clamping claws of the clamp located above include a first clamping claw and a second clamping claw. The clamping end of the first clamping claw includes a vertically arranged first clamping surface and a mounting surface. The width direction of the aluminum foil is consistent with the length direction of the mounting surface. The mounting surface is located above the first clamping surface. The first clamping surface is vertically arranged, and the aluminum foil pre-clamping assembly is arranged on the mounting surface.

[0012] The specific structure of the above-mentioned fixed plate is that the fixed plate includes two support plates arranged along the length direction of the installation surface, the upper ends of the two support plates are connected by a horizontally arranged upper baffle, the upper surface of the plate body and the lower surface of the upper baffle are both flat and can fit tightly.

[0013] The specific structure of the above-mentioned elastic clamp is that the elastic clamp includes an elastic member and a plate body located below the upper baffle. The plate body is connected to the mounting surface through the elastic member, and its two sides along the length direction are respectively slidably connected with the support plate, and the sliding direction is the vertical direction.

[0014] In order not to affect the width range of the aluminum foil clamped by the clamp, the vertical distance between the two support plates is greater than 2 / 3 of the length of the first clamping claw along the length direction of the mounting surface.

[0015] The connection structure between the first clamping claw and the upper part of the second clamping claw is that the upper part of the first clamping claw is slidably connected with the sliding groove opened in the upper part of the second clamping claw, and the sliding direction is perpendicular to the length of the mounting surface, which is convenient for driving through the connecting piece.

[0016] Regarding the sliding connection structure of the upper parts of the first clamping jaw and the second clamping jaw, the upper parts of the first clamping jaw and the second clamping jaw are detachably connected through a first connecting member. The first connecting member is a fastening bolt, and its axial direction is consistent with the sliding direction of the second clamping jaw, so that the distance between the first clamping jaw and the second clamping jaw can be adjusted through the first connecting member for clamping or removing the aluminum foil.

[0017] The structure of the test frame is relatively compact. To facilitate the tightening of the fastening bolts, the test frame includes two symmetrically arranged vertical plates. A vertical mounting hole is opened on the side of one vertical plate close to the bolt head of the fastening bolt, and the width of the mounting hole is greater than the maximum outer diameter of the bolt head.

[0018] The structure of the above-mentioned lifting mechanism is that the lifting mechanism is a ball screw, which includes a vertically arranged screw and a nut connected thereto. The upper part of the screw is connected to the drive motor installed at the upper end of the test frame, and the base located above is connected to the outer side of the nut, and the outer side of the base slides in the test frame along the vertical direction.

[0019] The beneficial effects of the present invention are:

[0020] The lower end of the aluminum foil is clamped on the clamp below, and the plate body is pressed downward to form a gap between the plate body and the upper baffle for the upper end of the aluminum foil to pass through. The upper end of the aluminum foil is passed through the gap, and the plate body is released, so that the plate body moves upward under the reset of the elastic member, and the aluminum foil is pressed against the lower surface of the upper baffle, so that the aluminum foil is temporarily tightened or flattened by the aluminum foil pre-clamping assembly. The clamping force of the aluminum foil pre-clamping assembly is less than the clamping force between the first clamping jaw and the second clamping jaw of the clamp. Therefore, the position of the aluminum foil can be adjusted so that the aluminum foil is set vertically, reducing the occurrence of wrinkles or overall tilt, and reducing the impact on the tensile test data;

[0021] The upper parts of the first clamping jaw and the second clamping jaw are detachably connected via a first connecting piece, so that the distance between the first clamping jaw and the second clamping jaw can be adjusted via the first connecting piece for clamping or removing the aluminum foil. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In the attached figure:

[0023] Figure 1 It is a structural diagram;

[0024] Figure 2 for Figure 1 A in the middle is an enlarged structural diagram;

[0025] Figure 3 is the left view;

[0026] Figure 4 It is a front view;

[0027] Figure 5 Schematic diagram of the structure of the first clamping claw;

[0028] Figure 6 Schematic diagram of the second clamping claw structure;

[0029] The components represented by the reference numerals in the figure are:

[0030] 1. Test stand; 101. Vertical plate; 102. Mounting slot; 2. Upper fixture; 201. First clamping jaw; 2011. First clamping surface; 2012. Mounting surface; 202. Second clamping jaw; 2021. Slide groove; 203. Base; 3. Lower fixture; 4. Aluminum foil pre-clamping assembly; 401. Support plate; 402. Upper baffle; 403. Elastic part; 404. Plate body; 5. Fastening bolts; 6. Screw; 7. Nut; 8. Drive motor; 9. Aluminum foil. DETAILED DESCRIPTION

[0031] See also Figure 1 and Figure 2As shown, a clamping mechanism for aluminum foil tensile testing includes a vertically arranged test frame 1, which is equipped with two clamps arranged symmetrically in an upper and lower position. The clamps include a base 203 and two clamping claws arranged in pairs on one side of the base 203. One clamping claw is connected to the base 203 and slides with the other clamping claw. The two clamping claws are detachably connected via a connector. Both clamping claws have a clamping end on the same side, and the two clamping ends can cling to and clamp one end of the aluminum foil. The two clamps are an upper clamp 2 and a lower clamp 3. The upper clamp 2 and the lower clamp 3 have the same structure. The difference between the upper clamp 2 and the lower clamp 3 is that the first clamping claw 201 of the upper clamp 2 is equipped with an aluminum foil pre-clamping assembly 4.

[0032] See also Figure 3 As shown, regarding the specific structure of the upper clamp 2, the two clamping jaws of the upper clamp 2 include a first clamping jaw 201 and a second clamping jaw 202. The clamping end of the first clamping jaw 201 includes a first clamping surface 2011 and a mounting surface 2012, which are arranged vertically. The width direction of the aluminum foil is consistent with the length direction of the mounting surface 2012. The mounting surface 2012 is located above the first clamping surface 2011, which is arranged vertically. The aluminum foil pre-clamping assembly 4 is arranged on the mounting surface 2012. The aluminum foil pre-clamping assembly 4 includes a fixed plate and an elastic clamping plate, both arranged along the length direction of the plane where the clamping end is located. The elastic clamping plate is located below the fixed plate and can be tightly attached to the lower end surface of the fixed plate.

[0033] See also Figure 3 、 Figure 5 and Figure 6 As shown, the connection structure of the upper portions of the first clamping jaw 201 and the second clamping jaw 202 is that the upper portion of the first clamping jaw 201 slides in contact with the sliding groove 2021 provided on the upper portion of the second clamping jaw 202, and the sliding connection direction is perpendicular to the length of the mounting surface 2012, which facilitates driving by the connecting member. Regarding the sliding connection structure of the upper portions of the first clamping jaw 201 and the second clamping jaw 202, the upper portions of the first clamping jaw 201 and the second clamping jaw 202 are detachably connected via a first connecting member. The first connecting member is a fastening bolt 5, the axial direction of which is consistent with the sliding direction of the second clamping jaw 202. This facilitates adjusting the distance between the first clamping jaw 201 and the second clamping jaw 202 via the first connecting member, which is used to clamp or remove the aluminum foil 9.

[0034] See also Figure 1 and Figure 4As shown, the base 203 of the upper fixture 2 is connected to the lifting mechanism installed on the test frame 1. The structure of the above-mentioned lifting mechanism is that the lifting mechanism is a ball screw 6, which includes a vertically arranged screw 6 and a nut 7 connected thereto. The upper part of the screw 6 is connected to the drive motor 8 installed at the upper end of the test frame 1. The base 203 located in the upper fixture 2 is connected to the outer side of the nut 7, and the outer side of the base 203 is slidably connected to the test frame 1 in the vertical direction. The drive motor 8 drives the screw to rotate, and the nut 7 on the screw 6 moves up and down under the drive of the screw, so that the base 203 can only move up and down along the vertical direction in the test frame 1 following the nut 7 and cannot rotate.

[0035] One end of the aluminum foil sheet 9 to be tested is first clamped by the upper or lower clamp, and the other end passes through another clamp and is first pre-clamped by the aluminum foil pre-clamping component 4 thereon to pre-tighten or flatten the aluminum foil sheet 9 to reduce wrinkles. The other end of the aluminum foil sheet 9 is conveniently adjusted on the aluminum foil pre-clamping component 4. After adjusting to be horizontal in the vertical direction, the other end of the aluminum foil sheet 9 is clamped by the lower or upper clamp.

[0036] See also Figure 1 and Figure 2 As shown, the specific structure of the fixing plate is as follows: the fixing plate comprises two support plates 401 arranged along the length of the mounting surface 2012. The upper ends of the two support plates 401 are connected by a horizontal upper baffle 402. The upper surface of the plate body 404 and the lower surface of the upper baffle 402 are both flat and tightly attached. To ensure that the width of the aluminum foil sheet 9 is not affected by the clamp, the vertical spacing between the two support plates 401 is greater than two-thirds of the length of the first clamping jaw 201 along the mounting surface 2012.

[0037] See also Figure 1 and Figure 2 As shown, the specific structure of the above-mentioned elastic clamp is that the elastic clamp includes an elastic member 403 and a plate body 404 located below the upper baffle 402. The plate body 404 is connected to the mounting surface 2012 through the elastic member 403, and its two sides along the length direction are respectively slidably connected with the support plate 401, and the sliding direction is the vertical direction.

[0038] See also Figure 1 and Figure 4 As shown, the structure of the test frame 1 is relatively compact. In order to facilitate the tightening of the fastening bolt 5, the test frame 1 includes two symmetrically arranged vertical plates 101. A vertical mounting long hole 102 is opened on one side of the vertical plate 101 close to the bolt head of the fastening bolt 5. The width of the mounting long hole 102 is greater than the maximum outer diameter of the bolt head.

Claims

1. A clamping mechanism for aluminum foil tensile testing, comprising a vertically arranged test frame (1), characterized in that: The test frame (1) is provided with two clamps symmetrically arranged in an upper and lower direction; The clamp comprises a base (203) and two clamping claws arranged in pairs on one side of the base (203), one clamping claw being connected to the base (203) and slidingly connected to the other clamping claw, the two clamping claws being detachably connected via a connecting piece, and both clamping claws having a clamping end on the same side, the two clamping ends being able to cling to and clamp one end of the aluminum foil; An aluminum foil pre-clamping assembly (4) is provided on a clamping claw of one of the clamps, and the aluminum foil pre-clamping assembly (4) comprises a fixing plate and an elastic clamping plate both arranged along the length direction of the plane where the clamping end is located, and the elastic clamping plate is located below the fixing plate and can be tightly attached to the lower end surface of the fixing plate upwards; The base (203) of the upper fixture is connected to a lifting mechanism installed on the test frame (1).

2. The clamping mechanism for aluminum foil tensile testing according to claim 1, characterized in that: The two clamping claws of the clamp located above include a first clamping claw (201) and a second clamping claw (202); the clamping end of the first clamping claw (201) includes a first clamping surface (2011) and a mounting surface (2012) arranged vertically; the width direction of the aluminum foil is consistent with the length direction of the mounting surface (2012); the mounting surface (2012) is located above the first clamping surface (2011); the first clamping surface (2011) is arranged vertically; and the aluminum foil pre-clamping assembly (4) is arranged on the mounting surface (2012).

3. The clamping mechanism for aluminum foil tensile testing according to claim 2, characterized in that: The fixing plate comprises two support plates (401) arranged along the length direction of the mounting surface (2012), the upper ends of the two support plates (401) being connected via a horizontally arranged upper baffle (402), and the upper surface of the plate body (404) and the lower surface of the upper baffle (402) are both flat and can be in close contact.

4. The clamping mechanism for aluminum foil tensile testing according to claim 3, characterized in that: The elastic clamping plate comprises an elastic member (403) and a plate body (404) located below the upper baffle (402); the plate body (404) is connected to the mounting surface (2012) via the elastic member (403), and is slidably connected to the support plate (401) on both sides along the length direction, and the sliding direction is the vertical direction.

5. The clamping mechanism for aluminum foil tensile testing according to claim 3, characterized in that: The vertical distance between the two support plates (401) is greater than 2 / 3 of the length of the first clamping claw (201) along the length direction of the mounting surface (2012).

6. The clamping mechanism for aluminum foil tensile testing according to claim 2, characterized in that: The upper portion of the first clamping claw (201) is in sliding connection with a sliding groove (2021) provided on the upper portion of the second clamping claw (202), and the sliding connection direction is a direction perpendicular to the length of the mounting surface (2012).

7. The clamping mechanism for aluminum foil tensile testing according to claim 2, characterized in that: The upper parts of the first clamping claw (201) and the second clamping claw (202) are detachably connected via a first connecting piece, and the first connecting piece is a fastening bolt (5), the axial direction of which is consistent with the sliding direction of the second clamping claw (202).

8. The clamping mechanism for aluminum foil tensile testing according to claim 7, characterized in that: The test stand (1) comprises two symmetrically arranged vertical plates (101), one of the vertical plates (101) being provided with a vertical mounting long hole (102) on a side close to the bolt head of the fastening bolt (5), and the width of the mounting long hole (102) being greater than the maximum outer diameter of the bolt head.

9. The clamping mechanism for aluminum foil tensile testing according to claim 1, characterized in that: The lifting mechanism is a ball screw (6), which includes a vertically arranged screw (6) and a nut (7) connected thereto. The upper portion of the screw (6) is connected to a drive motor (8) installed at the upper end of the test frame (1). The base (203) located above is connected to the outer side of the nut (7), and the outer side of the base (203) is slidably connected to the inside of the test frame (1) along the vertical direction.