Tensile test fixture

Abstract

The utility model discloses a tensile test fixture, which relates to the technical field of foil clamping and comprises a platform, two fixture bodies are slidably connected onto the platform, the two fixture bodies are arranged in mirror symmetry, each fixture body comprises a bottom plate, one side of each bottom plate is slidably connected with a lifting clamping plate, and the other side of each bottom plate is provided with a clamping plate. First threaded rods are slidably connected into sliding grooves which are formed in the upper portion of the bottom plate and distributed in a linear array mode, the top end of each first threaded rod is fixedly connected to one side of a lifting clamping plate, and the outer side of each first threaded rod is sleeved with a threaded pipe in a threaded mode. Therefore, the width or height of the clamp main body can be adjusted according to the width of the foil, the applicability of the clamp main body can be improved, the problem that the clamp main body needs to be replaced due to the fact that the width of the clamp main body is too long or too short is solved, and meanwhile, the tensile test clamp can adapt to the foil and can improve the stability and accuracy of foil testing.

Description

Technical Field

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

[0002] During the battery manufacturing process, the performance of the current collector restricts the process upper limit of battery cell preparation. In conventional current collector testing, it is necessary to perform a tensile test on the foil to test the tensile strength and elongation at break of the foil, to ensure that the foil has sufficient mechanical properties in the subsequent winding and processing process, and to ensure the stability of the battery cell and the process yield.

[0003] Currently, a tensile test fixture is required to fix and clamp the foil during foil testing. Since the foil widths used in different battery models are different, the widths of the foils to be tested will also be different. Therefore, tensile test fixtures of different widths are required to adapt to the foil to be tested. Among them, the current fixture structure is single and cannot adjust its own width. A longer fixture width increases the on-site floor space and affects the foil testing space; a shorter fixture width cannot effectively clamp the entire foil, resulting in different forces between the clamped area and the unclamped area of ​​the foil, resulting in uneven force on the foil surface, thereby affecting the accuracy of the test data. Summary of the Invention

[0004] The purpose of the utility model is to provide a tensile testing fixture to solve the problem of low applicability of the current tensile testing fixture proposed in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a tensile testing fixture, comprising a platform, on which two fixture bodies are slidably connected, and the two fixture bodies are arranged in mirror symmetry with each other, and the fixture body comprises a base plate, and a lifting clamp plate is slidably connected to one side of the base plate, and a first screw is slidably connected in a linear array-distributed slide groove opened on the upper part of the base plate, and the top end of each first screw is fixedly connected to one side of the lifting clamp plate, and the outer thread sleeve of the first screw is provided with a threaded tube, and the threaded tube is rotatably connected to the base plate at the notch of the slide groove, and an adjustment mechanism is provided on the base plate to drive each threaded tube to rotate together, and the first screw and the lifting clamp plate are arranged parallel to each other.

[0006] Preferably, the lifting splint includes a top rod, the bottom of the top rod is fixedly connected to a first support plate distributed in a linear array, a second support plate is slidably connected between each adjacent two first support plates, the second support plate is fixedly connected to one side of the bottom plate, the top end of the first screw is fixedly connected to the bottom of the top rod, a wire groove is opened on one side of the first support plate, a wire rod is slidably connected in the wire groove, and the wire rod is fixedly connected to one side of the second support plate.

[0007] Preferably, one side of the top rod is rotatably connected to a support rod distributed in a linear array, the movable end of the support rod is rotatably connected to a slider, a second screw is threadedly connected to a threaded hole opened on one side of the slider, the second screw is rotatably connected to the upper part of the base plate, and the second screw and the first screw are arranged perpendicular to each other.

[0008] Preferably, a bevel gear ring is fixedly sleeved on one end of the second screw rod close to the first screw rod and on the outer side of the threaded tube, and the two bevel gear rings are meshed and connected with each other.

[0009] Preferably, the adjustment mechanism includes a worm and a worm wheel distributed in a linear array, each of the worms is respectively meshed with each worm wheel, the worm wheel is fixedly sleeved on the outside of the threaded tube, the worm is rotatably connected to the upper part of the base plate, and each worm is fixedly connected to each other at the head and tail, and one end of the worm is fixedly connected to a rocker.

[0010] Preferably, the upper part of the push rod is fixedly connected to a top plate, the upper part of the top plate is provided with a slide rail, two foil baffles are provided on the slide rail, the first and second abutment plates are provided with clamp pads on the side facing away from the bottom plate, and the upper part of the top plate is provided with surface scale lines.

[0011] Preferably, a mounting plate is installed on the upper part of the platform, a hydraulic rod is installed on one side of the mounting plate, the telescopic end of the hydraulic rod is fixedly connected to one side of the left bottom plate, and the right bottom plate is fixedly connected to the upper part of the platform.

[0012] Preferably, a stabilizing rod is fixedly connected to the bottom of the top plate, and a stabilizing groove is provided on the upper part of the bottom plate at a corresponding position relative to each stabilizing rod. The stabilizing rod is slidably connected to the stabilizing groove, and the stabilizing rod and the first screw are arranged parallel to each other, and the stabilizing rod and the first screw are respectively located on both sides of the bottom of the top plate.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The present application provides a lifting clamp and a first threaded rod, so that the width or height of the clamp body can be adjusted according to the width of the foil, thereby improving the applicability of the clamp body and avoiding the problem of the clamp body needing to be replaced due to the width being too long or too short. At the same time, the function of the tensile test fixture being able to adapt to the foil can improve the stability and accuracy of the foil test.

[0015] 2. The present application provides a first abutment plate and a second abutment plate, and also provides a support rod, which can improve the adjustment convenience of the tensile test fixture and further improve the stability of the tensile test fixture in clamping the foil. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1This is a three-dimensional schematic diagram of an overall tensile test fixture of the present invention;

[0017] Figure 2 This is a schematic diagram of the top view of the fixture body of a tensile testing fixture of the present invention;

[0018] Figure 3 This is a three-dimensional schematic diagram of a lifting plate of a tensile testing fixture of the present invention;

[0019] Figure 4 This is a three-dimensional schematic diagram of a clamp body of a tensile testing clamp of the present invention.

[0020] Numbers in the figure: 1. Platform; 2. Clamp body; 201. Bottom plate; 202. Lifting plate; 2021. Push rod; 2022. First abutment plate; 2023. Second abutment plate; 203. First screw; 204. Threaded tube; 3. Support rod; 4. Slider; 5. Second screw; 6. Bevel gear ring; 7. Worm; 8. Worm gear; 9. Slide rail; 10. Foil baffle; 11. Clamp gasket; 12. Surface scale line; 13. Mounting plate; 14. Hydraulic rod; 15. Stabilizer bar; 16. Top plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Example: Figure 1 - Figure 4 As shown, the utility model provides a technical solution of a tensile testing fixture, including a platform 1, two fixture bodies 2 are slidably connected to the platform 1, and the two fixture bodies 2 are arranged in mirror symmetry with each other, and the fixture body 2 includes a base plate 201, and a lifting clamping plate 202 is slidably connected to one side of the base plate 201, and a first screw rod 203 is slidably connected in a linear array distribution slide groove opened on the upper part of the base plate 201, and the top end of each first screw rod 203 is fixedly connected to one side of the lifting clamping plate 202, and the outer thread sleeve of the first screw rod 203 is provided with a threaded tube 204, and the threaded tube 204 is rotatably connected to the base plate 201 at the notch of the slide groove, and an adjustment mechanism for driving each threaded tube 204 to rotate together is provided on the base plate 201, and the first screw rod 203 and the lifting clamping plate 202 are arranged parallel to each other;

[0023] The foil is placed between the two clamp bodies 2 and the two clamp bodies 2 cooperate to clamp the foil. The height or width of the clamp bodies 2 is adjusted according to the width of the foil. By rotating the threaded tube 204, the threaded tube 204 drives the lifting clamp plate 202 to move up and down using the first screw 203, thereby increasing or shortening the width or height of the clamp body 2.

[0024] like Figure 3 As shown, the lifting splint 202 includes a top rod 2021, the bottom of the top rod 2021 is fixedly connected to a first support plate 2022 distributed in a linear array, and a second support plate 2023 is slidably connected between each two adjacent first support plates 2022. The second support plate 2023 is fixedly connected to one side of the bottom plate 201, and the top of the first screw rod 203 is fixedly connected to the bottom of the top rod 2021. A wire groove is opened on one side of the first support plate 2022, and a wire rod is slidably connected in the wire groove. The wire rod is fixedly connected to one side of the second support plate 2023;

[0025] By adjusting the height of the push rod 2021 , the push rod 2021 adjusts the contact width between the entire lifting clamping plate 202 and the foil surface by sliding the first abutment plate 2022 and the second abutment plate 2023 relative to each other.

[0026] like Figure 3 As shown, one side of the top rod 2021 is rotatably connected to a support rod 3 distributed in a linear array, the movable end of the support rod 3 is rotatably connected to a slider 4, a second screw rod 5 is threadedly connected to a threaded hole opened on one side of the slider 4, and the second screw rod 5 is rotatably connected to the upper portion of the bottom plate 201, and the second screw rod 5 and the first screw rod 203 are arranged perpendicular to each other;

[0027] By rotating the second screw rod 5 , the second screw rod 5 drives the slider 4 to slide on the upper part of the platform 1 , so that the support rod 3 is used to support the top rod 2021 and adapt the height of the top rod 2021 .

[0028] like Figure 3 and Figure 4 As shown, the end of the second screw 5 close to the first screw 203 and the outer side of the threaded tube 204 are fixedly sleeved with a bevel gear ring 6, and the two bevel gear rings 6 are meshed and connected with each other;

[0029] When the threaded tube 204 is rotated, the threaded tube 204 drives the second screw 5 to rotate by using the bevel gear ring 6 .

[0030] like Figure 3 and Figure 4 As shown, the adjustment mechanism includes a linear array of worms 7 and worm wheels 8. Each worm 7 is meshed with each worm wheel 8. The worm wheel 8 is fixedly sleeved on the outside of the threaded tube 204. The worms 7 are rotatably connected to the upper part of the base plate 201. The head and tail of each worm 7 are fixedly connected to each other, and one end of the worm 7 is fixedly connected to a rocker.

[0031] By rotating the rocker, the rocker drives the worm gears 8 to rotate together with the worm 7, and the worm gears 8 drive the threaded tube 204 to rotate. The threaded tube 204 drives the lifting clamp 202 to move up and down through the three-dimensional first screw 203.

[0032] like Figure 1 and Figure 2 As shown, the top of the top rod 2021 is fixedly connected to the top plate 16, the top of the top plate 16 is provided with a slide rail 9, the slide rail 9 is provided with two foil baffles 10, the first abutment plate 2022 and the second abutment plate 2023 are provided with a clamp pad 11 on the side facing away from the bottom plate 201, and the top of the top plate 16 is provided with a surface scale line 12.

[0033] like Figure 1 As shown, a mounting plate 13 is installed on the upper part of the platform 1, and a hydraulic rod 14 is installed on one side of the mounting plate 13. The telescopic end of the hydraulic rod 14 is fixedly connected to one side of the left bottom plate 201, and the right bottom plate 201 is fixedly connected to the upper part of the platform 1;

[0034] The hydraulic rod 14 is used to drive the left bottom plate 201 to slide, so that the two clamp bodies 2 cooperate with each other to clamp the foil.

[0035] like Figure 1 and Figure 4 As shown, the bottom of the top plate 16 is fixedly connected to the stabilizing rod 15, and a stabilizing groove is opened on the upper part of the bottom plate 201 at a corresponding position relative to each stabilizing rod 15. The stabilizing rod 15 is slidably connected to the stabilizing groove. The stabilizing rod 15 and the first screw 203 are arranged parallel to each other, and the stabilizing rod 15 and the first screw 203 are respectively located on both sides of the bottom of the top plate 16;

[0036] The stabilizing rod 15 is used to improve the stability of the top plate 16 during lifting and lowering.

[0037] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A tensile test fixture, comprising a platform (1), two fixture bodies (2) being slidably connected to the platform (1), characterized in that: The clamp body (2) includes a base plate (201), one side of the base plate (201) is slidably connected to a lifting clamp plate (202), and a first screw rod (203) is slidably connected in a linear array of sliding grooves opened on the upper part of the base plate (201), and the top end of each first screw rod (203) is fixedly connected to one side of the lifting clamp plate (202), and the outer thread sleeve of the first screw rod (203) is provided with a threaded tube (204), and the threaded tube (204) is rotatably connected to the groove of the base plate (201), and an adjustment mechanism is provided on the base plate (201) to drive each threaded tube (204) to rotate together.

2. A tensile testing fixture according to claim 1, characterized in that: The lifting splint (202) comprises a top rod (2021), the bottom of the top rod (2021) is fixedly connected to a first support plate (2022) distributed in a linear array, a second support plate (2023) is slidably connected between each two adjacent first support plates (2022), the second support plate (2023) is fixedly connected to one side of the bottom plate (201), and the top end of the first screw rod (203) is fixedly connected to the bottom of the top rod (2021).

3. A tensile testing fixture according to claim 2, characterized in that: One side of the top rod (2021) is rotatably connected to a support rod (3) distributed in a linear array, a movable end of the support rod (3) is rotatably connected to a slider (4), a second screw rod (5) is threadedly connected in a threaded hole provided on one side of the slider (4), and the second screw rod (5) is rotatably connected to the upper portion of the bottom plate (201).

4. A tensile testing fixture according to claim 3, characterized in that: The end of the second screw (5) close to the first screw (203) and the outer side of the threaded tube (204) are both fixedly sleeved with a bevel gear ring (6), and the two bevel gear rings (6) are meshed and connected with each other.

5. The tensile testing fixture according to claim 1, characterized in that: The adjustment mechanism comprises worms (7) and worm wheels (8) distributed in a linear array, each of the worms (7) being meshed with each of the worm wheels (8), the worm wheels (8) being fixedly sleeved on the outside of the threaded tube (204), the worms (7) being rotatably connected to the upper portion of the base plate (201), and the head and tail of each of the worms (7) being fixedly connected to each other.

6. The tensile testing fixture according to claim 2, characterized in that: The top of the top rod (2021) is fixedly connected to a top plate (16), a slide rail (9) is provided on the top of the top plate (16), two foil baffles (10) are provided on the slide rail (9), a clamp pad (11) is provided on the side of the first abutment plate (2022) and the second abutment plate (2023) facing away from the bottom plate (201), and a surface scale line (12) is provided on the top of the top plate (16).

7. The tensile testing fixture according to claim 1, characterized in that: A mounting plate (13) is installed on the upper portion of the platform (1), a hydraulic rod (14) is installed on one side of the mounting plate (13), a telescopic end of the hydraulic rod (14) is fixedly connected to one side of the left bottom plate (201), and the right bottom plate (201) is fixedly connected to the upper portion of the platform (1).

8. The tensile testing fixture according to claim 6, characterized in that: The bottom of the top plate (16) is fixedly connected to a stabilizing rod (15), and a stabilizing groove is provided on the upper part of the bottom plate (201) at a position corresponding to each stabilizing rod (15), and the stabilizing rod (15) is slidably connected to the stabilizing groove.

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